導語：高低配住宅小區消火栓(shuan)系統分(fen)區方案一文來源于網(wang)友上傳，不代表本站觀點(dian)，若需要原創文章可(ke)咨詢(xun)客服老師，歡迎參(can)考。

摘要：當前很多住宅小區都采取高低配的設置，一類高層住宅搭配二類高層住宅及部分多層疊墅。導致消火栓系統分區存在多種的分區方式，各種分區方式都有各自的優缺點。本論文針對某高低配住宅小區工程實例，進行了三種常見室內消火栓系統分區方案，就(jiu)安(an)全(quan)可靠性、系(xi)統復(fu)雜程度、經濟(ji)性、成本力進行(xing)比較(jiao)，最終確定了最經濟(ji)合理適用的室內消(xiao)火栓系(xi)統分區(qu)實(shi)施方(fang)案。

關鍵詞：高低(di)配小區(qu)(qu)；室內(nei)消火栓系統分區(qu)(qu)；減壓(ya)閥(fa)(fa)減壓(ya)分區(qu)(qu)；減壓(ya)閥(fa)(fa)后靜壓(ya)；比例式減壓(ya)閥(fa)(fa)

隨著經(jing)(jing)濟社會(hui)(hui)的(de)發展，人(ren)們對生活品(pin)質的(de)追求，同(tong)一小(xiao)(xiao)(xiao)區(qu)(qu)為了滿足(zu)不同(tong)層(ceng)次購房(fang)要求，小(xiao)(xiao)(xiao)區(qu)(qu)內(nei)通(tong)常(chang)會(hui)(hui)通(tong)過(guo)高(gao)低(di)配(pei)的(de)設置(zhi)，滿足(zu)不同(tong)購房(fang)需求。如現在很多小(xiao)(xiao)(xiao)區(qu)(qu)經(jing)(jing)常(chang)會(hui)(hui)設置(zhi)有(you)多棟(dong)33層(ceng)左右的(de)一類高(gao)層(ceng)住宅搭配(pei)部(bu)(bu)分(fen)(fen)(fen)二類高(gao)層(ceng)及一些疊拼產(chan)(chan)品(pin)。由于小(xiao)(xiao)(xiao)區(qu)(qu)建(jian)筑高(gao)度加(jia)屋頂水箱(xiang)高(gao)度超過(guo)100m，故(gu)整(zheng)個(ge)小(xiao)(xiao)(xiao)區(qu)(qu)需要消防(fang)分(fen)(fen)(fen)區(qu)(qu)供水。由于存(cun)在有(you)部(bu)(bu)分(fen)(fen)(fen)二類高(gao)層(ceng)產(chan)(chan)品(pin)，整(zheng)個(ge)小(xiao)(xiao)(xiao)區(qu)(qu)的(de)消火(huo)栓系統分(fen)(fen)(fen)區(qu)(qu)就會(hui)(hui)有(you)多種不同(tong)的(de)方(fang)案(an)，本(ben)文通(tong)過(guo)分(fen)(fen)(fen)析(xi)常(chang)用的(de)四種分(fen)(fen)(fen)區(qu)(qu)方(fang)案(an)，就安全可靠性、系統復雜程度、經(jing)(jing)濟性、成本(ben)力進(jin)行比較，最(zui)終得出(chu)最(zui)經(jing)(jing)濟合理適用的(de)室內(nei)消火(huo)栓系統分(fen)(fen)(fen)區(qu)(qu)實施方(fang)案(an)。

1減壓閥后靜壓計算

因為(wei)現行消火(huo)(huo)(huo)(huo)栓(shuan)(shuan)系(xi)(xi)統(tong)(tong)分(fen)區(qu)采用(yong)減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)分(fen)區(qu)最簡單(dan)方便常用(yong)，消火(huo)(huo)(huo)(huo)栓(shuan)(shuan)系(xi)(xi)統(tong)(tong)采用(yong)的(de)(de)(de)(de)(de)減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)一(yi)般(ban)需既(ji)能(neng)減(jian)(jian)(jian)(jian)(jian)(jian)(jian)動壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)又能(neng)減(jian)(jian)(jian)(jian)(jian)(jian)(jian)靜(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)的(de)(de)(de)(de)(de)減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)。減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)后(hou)靜(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)設計中(zhong)(zhong)有(you)(you)(you)許多不(bu)同(tong)的(de)(de)(de)(de)(de)理解，有(you)(you)(you)理解為(wei)減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)后(hou)靜(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)即為(wei)閥(fa)(fa)(fa)(fa)(fa)(fa)后(hou)消火(huo)(huo)(huo)(huo)栓(shuan)(shuan)立管高度(du)，還有(you)(you)(you)理解為(wei)消火(huo)(huo)(huo)(huo)栓(shuan)(shuan)系(xi)(xi)統(tong)(tong)減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)后(hou)動壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)即為(wei)閥(fa)(fa)(fa)(fa)(fa)(fa)后(hou)靜(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)，等(deng)等(deng)不(bu)同(tong)的(de)(de)(de)(de)(de)理解。《建(jian)筑給水(shui)(shui)減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)應用(yong)技術規(gui)程》CECS109：2013規(gui)定(ding)，給水(shui)(shui)減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)即在(zai)(zai)給水(shui)(shui)系(xi)(xi)統(tong)(tong)中(zhong)(zhong)能(neng)減(jian)(jian)(jian)(jian)(jian)(jian)(jian)動壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)和(he)靜(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)，能(neng)有(you)(you)(you)效設定(ding)出(chu)(chu)口(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)，且出(chu)(chu)口(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)在(zai)(zai)流(liu)量變化時(shi)能(neng)夠保持相(xiang)對穩定(ding)的(de)(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)調(diao)節裝置。其中(zhong)(zhong)出(chu)(chu)口(kou)(kou)(kou)靜(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)，是指流(liu)經減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)流(liu)量為(wei)零時(shi)的(de)(de)(de)(de)(de)出(chu)(chu)口(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)；出(chu)(chu)口(kou)(kou)(kou)動壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)，是指減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)有(you)(you)(you)流(liu)量通(tong)過時(shi)的(de)(de)(de)(de)(de)出(chu)(chu)口(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)。本文采用(yong)的(de)(de)(de)(de)(de)減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)即為(wei)：彈簧薄膜、先導、比例(li)式(shi)減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)。減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)中(zhong)(zhong)幾個常用(yong)參數既(ji)相(xiang)互(hu)之間(jian)關(guan)(guan)系(xi)(xi)：①進口(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)P1：減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)進口(kou)(kou)(kou)處壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)；②出(chu)(chu)口(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)P2：減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)出(chu)(chu)口(kou)(kou)(kou)處壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)，一(yi)般(ban)指有(you)(you)(you)流(liu)量通(tong)過時(shi)的(de)(de)(de)(de)(de)出(chu)(chu)口(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)，即出(chu)(chu)口(kou)(kou)(kou)動壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)；③出(chu)(chu)口(kou)(kou)(kou)靜(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)P2j：減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)密(mi)封關(guan)(guan)閉(bi)后(hou)（無流(liu)量通(tong)過時(shi)）的(de)(de)(de)(de)(de)出(chu)(chu)口(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)；④出(chu)(chu)口(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)的(de)(de)(de)(de)(de)動靜(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)升(sheng)ΔP2：減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)在(zai)(zai)進口(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)穩定(ding)的(de)(de)(de)(de)(de)情(qing)況下，從流(liu)動狀態(tai)轉(zhuan)為(wei)關(guan)(guan)閉(bi)狀態(tai)后(hou)的(de)(de)(de)(de)(de)出(chu)(chu)口(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)上升(sheng)值，與減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)閥(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)運動時(shi)的(de)(de)(de)(de)(de)摩擦力(li)(li)(li)(li)(li)(li)(li)、回座關(guan)(guan)閉(bi)后(hou)的(de)(de)(de)(de)(de)密(mi)封力(li)(li)(li)(li)(li)(li)(li)和(he)調(diao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)裝置（如先導閥(fa)(fa)(fa)(fa)(fa)(fa)）的(de)(de)(de)(de)(de)精度(du)等(deng)因素有(you)(you)(you)關(guan)(guan)，是減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)出(chu)(chu)口(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)精度(du)的(de)(de)(de)(de)(de)綜(zong)合(he)表現；不(bu)同(tong)生產廠家的(de)(de)(de)(de)(de)產品有(you)(you)(you)較(jiao)大差(cha)異(yi)，一(yi)般(ban)減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)動靜(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)升(sheng)在(zai)(zai)0.05MPa~0.10MPa之間(jian)，動靜(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)升(sheng)設計中(zhong)(zhong)一(yi)般(ban)選定(ding)為(wei)0.1MPa，比較(jiao)通(tong)用(yong)，可用(yong)公式(shi)ΔP2＝P2j-P2表示。從上所知減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)后(hou)靜(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)P2j=P2（減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)出(chu)(chu)口(kou)(kou)(kou)動壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)）+ΔP2（出(chu)(chu)口(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)的(de)(de)(de)(de)(de)動靜(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)升(sheng)），減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)靜(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)和(he)閥(fa)(fa)(fa)(fa)(fa)(fa)后(hou)的(de)(de)(de)(de)(de)動壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)息(xi)息(xi)相(xiang)關(guan)(guan)，從而(er)也說明(ming)和(he)減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)后(hou)所供樓層的(de)(de)(de)(de)(de)高度(du)息(xi)息(xi)相(xiang)關(guan)(guan)。減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)分(fen)區(qu)低區(qu)最底層消火(huo)(huo)(huo)(huo)栓(shuan)(shuan)栓(shuan)(shuan)口(kou)(kou)(kou)處靜(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)（單(dan)位米）=出(chu)(chu)口(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)P2+出(chu)(chu)口(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)的(de)(de)(de)(de)(de)動靜(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)升(sheng)ΔP2+H（減(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)與最底層消火(huo)(huo)(huo)(huo)栓(shuan)(shuan)栓(shuan)(shuan)口(kou)(kou)(kou)高差(cha)）≈P2+10+H。

2工程概況

本(ben)(ben)工(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)位(wei)(wei)于(yu)(yu)湖南(nan)省永州市，項目共包括1棟(dong)1層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)(de)(de)(de)(de)(de)商業，1棟(dong)2層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)(de)(de)(de)(de)(de)住(zhu)宅(zhai)，8棟(dong)4層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)(de)(de)(de)(de)(de)疊墅，2棟(dong)11層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)(de)(de)(de)(de)(de)二(er)(er)(er)類(lei)(lei)(lei)(lei)高(gao)(gao)(gao)(gao)(gao)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)住(zhu)宅(zhai)，3棟(dong)18層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)(de)(de)(de)(de)(de)二(er)(er)(er)類(lei)(lei)(lei)(lei)高(gao)(gao)(gao)(gao)(gao)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)住(zhu)宅(zhai)，1棟(dong)32層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)、2棟(dong)33層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)、3棟(dong)34層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)(de)(de)(de)(de)(de)一類(lei)(lei)(lei)(lei)高(gao)(gao)(gao)(gao)(gao)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)住(zhu)宅(zhai)，一棟(dong)3層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)(de)(de)(de)(de)(de)幼兒(er)園(yuan)及(ji)(ji)1座地下(xia)車庫。總建(jian)(jian)(jian)筑(zhu)(zhu)面(mian)積(ji)約(yue)25萬(wan)平。小(xiao)(xiao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)高(gao)(gao)(gao)(gao)(gao)樓(lou)建(jian)(jian)(jian)筑(zhu)(zhu)高(gao)(gao)(gao)(gao)(gao)度(du)(du)99.15m，地下(xia)室層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)高(gao)(gao)(gao)(gao)(gao)5.4m，此(ci)項目室內消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)用(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)量(liang)(liang)(liang)20L/S。由于(yu)(yu)小(xiao)(xiao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)建(jian)(jian)(jian)筑(zhu)(zhu)高(gao)(gao)(gao)(gao)(gao)度(du)(du)加(jia)(jia)(jia)屋頂水(shui)(shui)(shui)箱高(gao)(gao)(gao)(gao)(gao)度(du)(du)超(chao)過100m，根(gen)據(ju)(ju)《消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)防給(gei)水(shui)(shui)(shui)及(ji)(ji)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)技術規(gui)(gui)(gui)范(fan)》GB50974-2014第(di)6.2.1條，消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)大(da)于(yu)(yu)1.0MPa消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)給(gei)水(shui)(shui)(shui)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)應(ying)分(fen)(fen)(fen)(fen)(fen)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)供水(shui)(shui)(shui)，故整(zheng)個(ge)(ge)(ge)(ge)小(xiao)(xiao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)需(xu)(xu)(xu)要(yao)(yao)分(fen)(fen)(fen)(fen)(fen)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)供水(shui)(shui)(shui)。同(tong)時按(an)《消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)防給(gei)水(shui)(shui)(shui)及(ji)(ji)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)技術規(gui)(gui)(gui)范(fan)》GB50974-2014要(yao)(yao)求(qiu)(qiu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)的(de)(de)(de)(de)(de)(de)(de)(de)水(shui)(shui)(shui)槍(qiang)充(chong)實水(shui)(shui)(shui)柱(zhu)不(bu)(bu)(bu)(bu)小(xiao)(xiao)于(yu)(yu)13m，室內消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)立管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)布置(zhi)保證同(tong)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)相鄰兩個(ge)(ge)(ge)(ge)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)的(de)(de)(de)(de)(de)(de)(de)(de)水(shui)(shui)(shui)槍(qiang)充(chong)實水(shui)(shui)(shui)柱(zhu)同(tong)時可(ke)達(da)(da)到(dao)(dao)(dao)(dao)(dao)被保護(hu)范(fan)圍的(de)(de)(de)(de)(de)(de)(de)(de)任何部(bu)位(wei)(wei)，最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)不(bu)(bu)(bu)(bu)利(li)(li)(li)(li)(li)(li)處消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)不(bu)(bu)(bu)(bu)應(ying)小(xiao)(xiao)于(yu)(yu)0.35MPa。本(ben)(ben)小(xiao)(xiao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)分(fen)(fen)(fen)(fen)(fen)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)設計按(an)減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)分(fen)(fen)(fen)(fen)(fen)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)考慮，小(xiao)(xiao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)長(chang)度(du)(du)約(yue)為(wei)(wei)360m，根(gen)據(ju)(ju)整(zheng)個(ge)(ge)(ge)(ge)小(xiao)(xiao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)包含有18層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)、11層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)及(ji)(ji)33層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)塔(ta)樓(lou)，按(an)照一棟(dong)塔(ta)樓(lou)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)好只有一個(ge)(ge)(ge)(ge)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)分(fen)(fen)(fen)(fen)(fen)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)，方(fang)(fang)(fang)(fang)便(bian)管(guan)(guan)(guan)(guan)(guan)(guan)道連接的(de)(de)(de)(de)(de)(de)(de)(de)原則(ze)(ze)，本(ben)(ben)項目一般會有四(si)種常用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)分(fen)(fen)(fen)(fen)(fen)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)方(fang)(fang)(fang)(fang)案：方(fang)(fang)(fang)(fang)案一、二(er)(er)(er)類(lei)(lei)(lei)(lei)高(gao)(gao)(gao)(gao)(gao)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)建(jian)(jian)(jian)筑(zhu)(zhu)18層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)及(ji)(ji)以(yi)(yi)下(xia)為(wei)(wei)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)，一類(lei)(lei)(lei)(lei)高(gao)(gao)(gao)(gao)(gao)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)建(jian)(jian)(jian)筑(zhu)(zhu)2層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)及(ji)(ji)以(yi)(yi)下(xia)為(wei)(wei)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)，2層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)以(yi)(yi)上(shang)(shang)(shang)為(wei)(wei)高(gao)(gao)(gao)(gao)(gao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)；方(fang)(fang)(fang)(fang)案二(er)(er)(er)、小(xiao)(xiao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)11層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)建(jian)(jian)(jian)筑(zhu)(zhu)11層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)及(ji)(ji)以(yi)(yi)下(xia)為(wei)(wei)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)，其(qi)(qi)(qi)他建(jian)(jian)(jian)筑(zhu)(zhu)2層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)及(ji)(ji)以(yi)(yi)下(xia)為(wei)(wei)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)，2層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)以(yi)(yi)上(shang)(shang)(shang)為(wei)(wei)高(gao)(gao)(gao)(gao)(gao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)；方(fang)(fang)(fang)(fang)案三、整(zheng)個(ge)(ge)(ge)(ge)小(xiao)(xiao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)2層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)及(ji)(ji)以(yi)(yi)下(xia)為(wei)(wei)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)，2層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)以(yi)(yi)上(shang)(shang)(shang)為(wei)(wei)高(gao)(gao)(gao)(gao)(gao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)，環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)采(cai)用(yong)(yong)(yong)(yong)(yong)DN125；方(fang)(fang)(fang)(fang)案四(si)、整(zheng)個(ge)(ge)(ge)(ge)小(xiao)(xiao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)2層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)及(ji)(ji)以(yi)(yi)下(xia)為(wei)(wei)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)，2層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)以(yi)(yi)上(shang)(shang)(shang)為(wei)(wei)高(gao)(gao)(gao)(gao)(gao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)，環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)采(cai)用(yong)(yong)(yong)(yong)(yong)DN100。2.1方(fang)(fang)(fang)(fang)案一、二(er)(er)(er)類(lei)(lei)(lei)(lei)高(gao)(gao)(gao)(gao)(gao)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)建(jian)(jian)(jian)筑(zhu)(zhu)18層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)及(ji)(ji)以(yi)(yi)下(xia)為(wei)(wei)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)，一類(lei)(lei)(lei)(lei)高(gao)(gao)(gao)(gao)(gao)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)建(jian)(jian)(jian)筑(zhu)(zhu)2層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)及(ji)(ji)以(yi)(yi)下(xia)為(wei)(wei)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)，2層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)以(yi)(yi)上(shang)(shang)(shang)為(wei)(wei)高(gao)(gao)(gao)(gao)(gao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)采(cai)用(yong)(yong)(yong)(yong)(yong)DN125普通(tong)(tong)(tong)熱(re)鍍(du)(du)鋅(xin)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)，到(dao)(dao)(dao)(dao)(dao)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)不(bu)(bu)(bu)(bu)利(li)(li)(li)(li)(li)(li)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)長(chang)度(du)(du)約(yue)180m，流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)20L/s，V＝1.51m/s，L=180m，i=0.0226mH2O/m；進(jin)戶(hu)立管(guan)(guan)(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)(guan)(guan)，采(cai)用(yong)(yong)(yong)(yong)(yong)DN100普通(tong)(tong)(tong)熱(re)鍍(du)(du)鋅(xin)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)，流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)10L/s，V＝1.15m/s，L=60m，i=0.0177mH2O/m。低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)所(suo)(suo)需(xu)(xu)(xu)揚(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)（H）＝幾(ji)何高(gao)(gao)(gao)(gao)(gao)差（加(jia)(jia)(jia)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)位(wei)(wei)置(zhi)和(he)(he)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)不(bu)(bu)(bu)(bu)利(li)(li)(li)(li)(li)(li)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)位(wei)(wei)置(zhi)）＋最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)不(bu)(bu)(bu)(bu)利(li)(li)(li)(li)(li)(li)點(dian)(dian)所(suo)(suo)需(xu)(xu)(xu)水(shui)(shui)(shui)頭(tou)＋沿程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＋局(ju)(ju)(ju)部(bu)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)。其(qi)(qi)(qi)中：幾(ji)何高(gao)(gao)(gao)(gao)(gao)差=54.40m；沿程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＝i*L=0.0226*180+0.0177*60＝4.07+1.06=5.13m；局(ju)(ju)(ju)部(bu)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＝0.15*沿程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＝0.77m則(ze)(ze)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)所(suo)(suo)需(xu)(xu)(xu)揚(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)H=54.40+35+1.3*（5.13+0.77）=97.07m則(ze)(ze)減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)后(hou)(hou)的(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)需(xu)(xu)(xu)達(da)(da)到(dao)(dao)(dao)(dao)(dao)0.97MPa。減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)分(fen)(fen)(fen)(fen)(fen)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)=出(chu)(chu)(chu)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)P2+出(chu)(chu)(chu)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)的(de)(de)(de)(de)(de)(de)(de)(de)動(dong)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)升ΔP2+H（減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)與(yu)(yu)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)底(di)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)高(gao)(gao)(gao)(gao)(gao)差）=97+10+1.8=109m，低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)超(chao)過1MPa不(bu)(bu)(bu)(bu)滿足規(gui)(gui)(gui)范(fan)要(yao)(yao)求(qiu)(qiu)。為(wei)(wei)滿足規(gui)(gui)(gui)范(fan)要(yao)(yao)求(qiu)(qiu)，需(xu)(xu)(xu)調(diao)整(zheng)環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)管(guan)(guan)(guan)(guan)(guan)(guan)徑減(jian)(jian)(jian)少(shao)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)阻力(li)(li)(li)(li)(li)(li)(li)(li)，現環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)采(cai)用(yong)(yong)(yong)(yong)(yong)DN150普通(tong)(tong)(tong)熱(re)鍍(du)(du)鋅(xin)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)，其(qi)(qi)(qi)他參(can)數不(bu)(bu)(bu)(bu)變(bian)，到(dao)(dao)(dao)(dao)(dao)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)不(bu)(bu)(bu)(bu)利(li)(li)(li)(li)(li)(li)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)長(chang)度(du)(du)約(yue)180m，流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)20L/s，V＝1.06m/s，L=180m，i=0.0096mH2O/m，則(ze)(ze)沿程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＝i*L=0.0096*180+0.0177*60＝1.728+1.06=2.79m；局(ju)(ju)(ju)部(bu)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＝0.15*沿程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＝0.42m。則(ze)(ze)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)所(suo)(suo)需(xu)(xu)(xu)揚(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)H=54.40+35+1.3*（2.79+0.42）=93.2m則(ze)(ze)減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)后(hou)(hou)的(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)需(xu)(xu)(xu)達(da)(da)到(dao)(dao)(dao)(dao)(dao)0.932MPa。減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)分(fen)(fen)(fen)(fen)(fen)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)=出(chu)(chu)(chu)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)P2+出(chu)(chu)(chu)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)的(de)(de)(de)(de)(de)(de)(de)(de)動(dong)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)升ΔP2+H（減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)與(yu)(yu)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)底(di)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)高(gao)(gao)(gao)(gao)(gao)差）=93.2+10+1.8=105，需(xu)(xu)(xu)要(yao)(yao)采(cai)用(yong)(yong)(yong)(yong)(yong)動(dong)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)升不(bu)(bu)(bu)(bu)大(da)于(yu)(yu)0.05MPa的(de)(de)(de)(de)(de)(de)(de)(de)減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)方(fang)(fang)(fang)(fang)可(ke)滿足規(gui)(gui)(gui)范(fan)要(yao)(yao)求(qiu)(qiu)。本(ben)(ben)方(fang)(fang)(fang)(fang)案系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)比較簡單，二(er)(er)(er)類(lei)(lei)(lei)(lei)高(gao)(gao)(gao)(gao)(gao)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)都只有一個(ge)(ge)(ge)(ge)分(fen)(fen)(fen)(fen)(fen)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)，立管(guan)(guan)(guan)(guan)(guan)(guan)數減(jian)(jian)(jian)少(shao)，施工(gong)方(fang)(fang)(fang)(fang)便(bian)，同(tong)時可(ke)減(jian)(jian)(jian)少(shao)水(shui)(shui)(shui)泵器個(ge)(ge)(ge)(ge)數；但(dan)是(shi)環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)需(xu)(xu)(xu)采(cai)用(yong)(yong)(yong)(yong)(yong)DN150普通(tong)(tong)(tong)熱(re)鍍(du)(du)鋅(xin)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)，且減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)需(xu)(xu)(xu)采(cai)用(yong)(yong)(yong)(yong)(yong)動(dong)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)升不(bu)(bu)(bu)(bu)大(da)于(yu)(yu)0.05MPa的(de)(de)(de)(de)(de)(de)(de)(de)減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)，成本(ben)(ben)會大(da)幅(fu)度(du)(du)提升。2.2方(fang)(fang)(fang)(fang)案二(er)(er)(er)、小(xiao)(xiao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)11層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)建(jian)(jian)(jian)筑(zhu)(zhu)11層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)及(ji)(ji)以(yi)(yi)下(xia)為(wei)(wei)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)，其(qi)(qi)(qi)他建(jian)(jian)(jian)筑(zhu)(zhu)2層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)及(ji)(ji)以(yi)(yi)下(xia)為(wei)(wei)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)，2層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)以(yi)(yi)上(shang)(shang)(shang)為(wei)(wei)高(gao)(gao)(gao)(gao)(gao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)采(cai)用(yong)(yong)(yong)(yong)(yong)DN125普通(tong)(tong)(tong)熱(re)鍍(du)(du)鋅(xin)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)，到(dao)(dao)(dao)(dao)(dao)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)不(bu)(bu)(bu)(bu)利(li)(li)(li)(li)(li)(li)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)長(chang)度(du)(du)約(yue)180m，流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)20L/s，V＝1.51m/s，L=180m，i=0.0226mH2O/m；進(jin)戶(hu)立管(guan)(guan)(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)(guan)(guan)，采(cai)用(yong)(yong)(yong)(yong)(yong)DN100普通(tong)(tong)(tong)熱(re)鍍(du)(du)鋅(xin)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)，流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)10L/s，V＝1.15m/s，L=40m，i=0.0177mH2O/m。低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)所(suo)(suo)需(xu)(xu)(xu)揚(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)（H）＝幾(ji)何高(gao)(gao)(gao)(gao)(gao)差（加(jia)(jia)(jia)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)位(wei)(wei)置(zhi)和(he)(he)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)不(bu)(bu)(bu)(bu)利(li)(li)(li)(li)(li)(li)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)位(wei)(wei)置(zhi)）＋最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)不(bu)(bu)(bu)(bu)利(li)(li)(li)(li)(li)(li)點(dian)(dian)所(suo)(suo)需(xu)(xu)(xu)水(shui)(shui)(shui)頭(tou)＋沿程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＋局(ju)(ju)(ju)部(bu)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)。其(qi)(qi)(qi)中：幾(ji)何高(gao)(gao)(gao)(gao)(gao)差=33.40m；沿程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＝i*L=0.0226*180+0.0177*40＝4.07+0.708=4.78m；局(ju)(ju)(ju)部(bu)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＝0.15*沿程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＝0.72m。則(ze)(ze)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)所(suo)(suo)需(xu)(xu)(xu)揚(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)H=33.4+35+1.3*（4.78+0.72）=75.6m則(ze)(ze)減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)后(hou)(hou)的(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)需(xu)(xu)(xu)達(da)(da)到(dao)(dao)(dao)(dao)(dao)0.756MPa。減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)分(fen)(fen)(fen)(fen)(fen)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)=出(chu)(chu)(chu)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)P2+出(chu)(chu)(chu)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)的(de)(de)(de)(de)(de)(de)(de)(de)動(dong)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)升ΔP2+H（減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)與(yu)(yu)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)底(di)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)高(gao)(gao)(gao)(gao)(gao)差）=75.6+10+1.8=87.3m，低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)小(xiao)(xiao)于(yu)(yu)1MPa滿足規(gui)(gui)(gui)范(fan)要(yao)(yao)求(qiu)(qiu)。如果低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)采(cai)用(yong)(yong)(yong)(yong)(yong)DN100普通(tong)(tong)(tong)熱(re)鍍(du)(du)鋅(xin)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)，到(dao)(dao)(dao)(dao)(dao)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)不(bu)(bu)(bu)(bu)利(li)(li)(li)(li)(li)(li)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)長(chang)度(du)(du)約(yue)180m，流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)20L/s，V＝2.31m/s，L=180m，i=0.0640mH2O/m；其(qi)(qi)(qi)他參(can)數不(bu)(bu)(bu)(bu)變(bian)。低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)所(suo)(suo)需(xu)(xu)(xu)揚(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)（H）＝幾(ji)何高(gao)(gao)(gao)(gao)(gao)差（加(jia)(jia)(jia)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)位(wei)(wei)置(zhi)和(he)(he)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)不(bu)(bu)(bu)(bu)利(li)(li)(li)(li)(li)(li)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)位(wei)(wei)置(zhi)）＋最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)不(bu)(bu)(bu)(bu)利(li)(li)(li)(li)(li)(li)點(dian)(dian)所(suo)(suo)需(xu)(xu)(xu)水(shui)(shui)(shui)頭(tou)＋沿程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＋局(ju)(ju)(ju)部(bu)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)。其(qi)(qi)(qi)中：幾(ji)何高(gao)(gao)(gao)(gao)(gao)差=33.40m；沿程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＝i*L=0.0640*180+0.0177*40＝11.52+0.708=12.23m；局(ju)(ju)(ju)部(bu)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＝0.15*沿程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＝1.83m。則(ze)(ze)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)所(suo)(suo)需(xu)(xu)(xu)揚(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)H=33.4+35+1.3*（12.23+1.83）=86.7m，則(ze)(ze)減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)后(hou)(hou)的(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)需(xu)(xu)(xu)達(da)(da)到(dao)(dao)(dao)(dao)(dao)0.767MPa。減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)分(fen)(fen)(fen)(fen)(fen)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)=出(chu)(chu)(chu)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)P2+出(chu)(chu)(chu)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)的(de)(de)(de)(de)(de)(de)(de)(de)動(dong)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)升ΔP2+H（減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)與(yu)(yu)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)底(di)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)高(gao)(gao)(gao)(gao)(gao)差）=86.7+10+1.8=98.5m，低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)小(xiao)(xiao)于(yu)(yu)1MPa剛好滿足規(gui)(gui)(gui)范(fan)要(yao)(yao)求(qiu)(qiu)，此(ci)種情況需(xu)(xu)(xu)滿足小(xiao)(xiao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)地塊不(bu)(bu)(bu)(bu)大(da)，環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)不(bu)(bu)(bu)(bu)大(da)方(fang)(fang)(fang)(fang)可(ke)滿足規(gui)(gui)(gui)范(fan)要(yao)(yao)求(qiu)(qiu)。2.3方(fang)(fang)(fang)(fang)案三、整(zheng)個(ge)(ge)(ge)(ge)小(xiao)(xiao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)2層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)及(ji)(ji)以(yi)(yi)下(xia)為(wei)(wei)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)，2層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)以(yi)(yi)上(shang)(shang)(shang)為(wei)(wei)高(gao)(gao)(gao)(gao)(gao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)，環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)采(cai)用(yong)(yong)(yong)(yong)(yong)DN125低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)采(cai)用(yong)(yong)(yong)(yong)(yong)DN125普通(tong)(tong)(tong)熱(re)鍍(du)(du)鋅(xin)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)，到(dao)(dao)(dao)(dao)(dao)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)不(bu)(bu)(bu)(bu)利(li)(li)(li)(li)(li)(li)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)長(chang)度(du)(du)約(yue)180m，流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)20L/s，V＝1.51m/s，L=180m，i=0.0226mH2O/m；進(jin)戶(hu)支管(guan)(guan)(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)(guan)(guan)，采(cai)用(yong)(yong)(yong)(yong)(yong)DN65普通(tong)(tong)(tong)熱(re)鍍(du)(du)鋅(xin)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)，流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)5L/s，V＝1.42m/s，L=12m，i=0.0438mH2O/m。低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)所(suo)(suo)需(xu)(xu)(xu)揚(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)（H）＝幾(ji)何高(gao)(gao)(gao)(gao)(gao)差（加(jia)(jia)(jia)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)位(wei)(wei)置(zhi)和(he)(he)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)不(bu)(bu)(bu)(bu)利(li)(li)(li)(li)(li)(li)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)位(wei)(wei)置(zhi)）＋最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)不(bu)(bu)(bu)(bu)利(li)(li)(li)(li)(li)(li)點(dian)(dian)所(suo)(suo)需(xu)(xu)(xu)水(shui)(shui)(shui)頭(tou)＋沿程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＋局(ju)(ju)(ju)部(bu)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)。其(qi)(qi)(qi)中：幾(ji)何高(gao)(gao)(gao)(gao)(gao)差=6.5m；沿程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＝i*L=0.0226*180+0.0438*12＝4.07+0.52=4.6m；局(ju)(ju)(ju)部(bu)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＝0.15*沿程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＝0.69m。則(ze)(ze)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)所(suo)(suo)需(xu)(xu)(xu)揚(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)H=6.5+35+1.3*（4.07+0.52）=47.5m，則(ze)(ze)減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)后(hou)(hou)的(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)需(xu)(xu)(xu)達(da)(da)到(dao)(dao)(dao)(dao)(dao)0.475MPa。減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)分(fen)(fen)(fen)(fen)(fen)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)=出(chu)(chu)(chu)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)P2+出(chu)(chu)(chu)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)的(de)(de)(de)(de)(de)(de)(de)(de)動(dong)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)升ΔP2+H（減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)與(yu)(yu)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)底(di)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)高(gao)(gao)(gao)(gao)(gao)差）=47.5+10+1.8=59.3m，低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)小(xiao)(xiao)于(yu)(yu)1MPa滿足規(gui)(gui)(gui)范(fan)要(yao)(yao)求(qiu)(qiu)。2.4方(fang)(fang)(fang)(fang)案四(si)、整(zheng)個(ge)(ge)(ge)(ge)小(xiao)(xiao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)2層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)及(ji)(ji)以(yi)(yi)下(xia)為(wei)(wei)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)，2層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)以(yi)(yi)上(shang)(shang)(shang)為(wei)(wei)高(gao)(gao)(gao)(gao)(gao)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)，環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)采(cai)用(yong)(yong)(yong)(yong)(yong)DN100低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)采(cai)用(yong)(yong)(yong)(yong)(yong)DN100普通(tong)(tong)(tong)熱(re)鍍(du)(du)鋅(xin)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)，到(dao)(dao)(dao)(dao)(dao)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)不(bu)(bu)(bu)(bu)利(li)(li)(li)(li)(li)(li)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)環(huan)(huan)(huan)(huan)網(wang)(wang)(wang)(wang)(wang)(wang)長(chang)度(du)(du)約(yue)180m，流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)20L/s，V＝2.31m/s（小(xiao)(xiao)于(yu)(yu)2.5），L=180m，i=0.0640mH2O/m；進(jin)戶(hu)支管(guan)(guan)(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)(guan)(guan)，采(cai)用(yong)(yong)(yong)(yong)(yong)DN65普通(tong)(tong)(tong)熱(re)鍍(du)(du)鋅(xin)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)，流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)5L/s，V＝1.42m/s，L=12m，i=0.0438mH2O/m。低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)所(suo)(suo)需(xu)(xu)(xu)揚(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)（H）＝幾(ji)何高(gao)(gao)(gao)(gao)(gao)差（加(jia)(jia)(jia)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)位(wei)(wei)置(zhi)和(he)(he)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)不(bu)(bu)(bu)(bu)利(li)(li)(li)(li)(li)(li)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)位(wei)(wei)置(zhi)）＋最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)不(bu)(bu)(bu)(bu)利(li)(li)(li)(li)(li)(li)點(dian)(dian)所(suo)(suo)需(xu)(xu)(xu)水(shui)(shui)(shui)頭(tou)＋沿程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＋局(ju)(ju)(ju)部(bu)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)。其(qi)(qi)(qi)中：幾(ji)何高(gao)(gao)(gao)(gao)(gao)差=6.5m；沿程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＝i*L=0.0640*180+0.0438*12＝11.52+0.52=12.04m；局(ju)(ju)(ju)部(bu)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＝0.15*沿程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)損(sun)(sun)(sun)(sun)(sun)(sun)(sun)失(shi)(shi)(shi)(shi)(shi)(shi)(shi)＝1.8m。則(ze)(ze)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)所(suo)(suo)需(xu)(xu)(xu)揚(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)H=6.5+35+1.3*（12.04+1.8）=59.5m，則(ze)(ze)減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)后(hou)(hou)的(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)需(xu)(xu)(xu)達(da)(da)到(dao)(dao)(dao)(dao)(dao)0.595MPa。減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)分(fen)(fen)(fen)(fen)(fen)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)=出(chu)(chu)(chu)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)P2+出(chu)(chu)(chu)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)(li)(li)的(de)(de)(de)(de)(de)(de)(de)(de)動(dong)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)升ΔP2+H（減(jian)(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)與(yu)(yu)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)底(di)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)高(gao)(gao)(gao)(gao)(gao)差）=59.5+10+1.8=71.3m，低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)(qu)最(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)(zui)低(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)消(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)(xiao)火(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)(huo)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)栓(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)(shuan)口(kou)(kou)(kou)(kou)(kou)(kou)(kou)靜(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)小(xiao)(xiao)于(yu)(yu)1MPa同(tong)樣滿足規(gui)(gui)(gui)范(fan)要(yao)(yao)求(qiu)(qiu)。

3方案比較

方(fang)(fang)案一、消(xiao)(xiao)(xiao)火(huo)栓(shuan)系(xi)(xi)統(tong)低(di)(di)區(qu)最(zui)低(di)(di)處(chu)(chu)消(xiao)(xiao)(xiao)火(huo)栓(shuan)栓(shuan)口(kou)靜(jing)壓(ya)超過(guo)1MPA，不(bu)(bu)滿足規(gui)范(fan)(fan)要求(qiu)(qiu)，可調整(zheng)消(xiao)(xiao)(xiao)火(huo)栓(shuan)環(huan)網(wang)管徑到(dao)DN150，減少(shao)沿程阻力損失同時采(cai)(cai)用靜(jing)壓(ya)升不(bu)(bu)大于(yu)0.05MPa的減壓(ya)閥方(fang)(fang)可滿足規(gui)范(fan)(fan)要求(qiu)(qiu)，但是(shi)這(zhe)樣會增加(jia)管道成本(ben)(ben)；如(ru)果18層建筑能成片的布(bu)置(zhi)，可減少(shao)高區(qu)消(xiao)(xiao)(xiao)火(huo)栓(shuan)環(huan)網(wang)的長度；這(zhe)種情況需(xu)(xu)(xu)綜合考慮，使設(she)計達到(dao)最(zui)優。方(fang)(fang)案二(er)、消(xiao)(xiao)(xiao)火(huo)栓(shuan)系(xi)(xi)統(tong)低(di)(di)區(qu)最(zui)低(di)(di)處(chu)(chu)消(xiao)(xiao)(xiao)火(huo)栓(shuan)栓(shuan)口(kou)靜(jing)壓(ya)不(bu)(bu)超過(guo)1MPa，滿足規(gui)范(fan)(fan)要求(qiu)(qiu)，系(xi)(xi)統(tong)比較簡(jian)單，一棟樓只有(you)(you)一個(ge)分區(qu)減少(shao)水泵(beng)接(jie)合器的數量，如(ru)11層建筑能成片布(bu)置(zhi)還可減少(shao)高區(qu)消(xiao)(xiao)(xiao)火(huo)栓(shuan)環(huan)網(wang)的長度，同時如(ru)果小(xiao)區(qu)地塊不(bu)(bu)大、環(huan)網(wang)不(bu)(bu)長，系(xi)(xi)統(tong)可采(cai)(cai)用DN100的環(huan)網(wang)滿足規(gui)范(fan)(fan)要求(qiu)(qiu)，可做(zuo)到(dao)系(xi)(xi)統(tong)簡(jian)單成本(ben)(ben)最(zui)優。方(fang)(fang)案三(san)、消(xiao)(xiao)(xiao)火(huo)栓(shuan)系(xi)(xi)統(tong)低(di)(di)區(qu)最(zui)低(di)(di)處(chu)(chu)消(xiao)(xiao)(xiao)火(huo)栓(shuan)栓(shuan)口(kou)靜(jing)壓(ya)不(bu)(bu)超過(guo)1MPa，滿足規(gui)范(fan)(fan)要求(qiu)(qiu)，且(qie)低(di)(di)區(qu)所有(you)(you)消(xiao)(xiao)(xiao)火(huo)栓(shuan)都(dou)不(bu)(bu)需(xu)(xu)(xu)要設(she)置(zhi)減壓(ya)穩壓(ya)消(xiao)(xiao)(xiao)火(huo)栓(shuan)，系(xi)(xi)統(tong)簡(jian)單，但是(shi)消(xiao)(xiao)(xiao)火(huo)栓(shuan)環(huan)網(wang)需(xu)(xu)(xu)采(cai)(cai)用DN125，官網(wang)成本(ben)(ben)有(you)(you)所增加(jia)。方(fang)(fang)案四、低(di)(di)區(qu)最(zui)低(di)(di)處(chu)(chu)消(xiao)(xiao)(xiao)火(huo)栓(shuan)靜(jing)壓(ya)不(bu)(bu)超過(guo)1MPa，滿足規(gui)范(fan)(fan)要求(qiu)(qiu)，低(di)(di)區(qu)所有(you)(you)消(xiao)(xiao)(xiao)火(huo)栓(shuan)都(dou)需(xu)(xu)(xu)要設(she)置(zhi)減壓(ya)穩壓(ya)消(xiao)(xiao)(xiao)火(huo)栓(shuan)，但是(shi)消(xiao)(xiao)(xiao)火(huo)栓(shuan)環(huan)網(wang)管徑可以做(zuo)到(dao)DN100，流速也滿足規(gui)范(fan)(fan)要求(qiu)(qiu)，成本(ben)(ben)優勢(shi)最(zui)高。

4結論

綜上所(suo)述，以上四(si)種消火栓(shuan)系(xi)(xi)統分(fen)(fen)區(qu)(qu)方(fang)(fang)式(shi)各有其優(you)缺點，都是比(bi)較(jiao)常見(jian)的(de)分(fen)(fen)區(qu)(qu)方(fang)(fang)式(shi)。方(fang)(fang)案(an)一(yi)分(fen)(fen)區(qu)(qu)一(yi)般不滿(man)足(zu)(zu)規(gui)范要(yao)求，除非小(xiao)區(qu)(qu)比(bi)較(jiao)小(xiao)采(cai)用(yong)(yong)(yong)DN150的(de)環網(wang)，但(dan)(dan)是這樣成本(ben)(ben)增加很(hen)多，方(fang)(fang)案(an)二(er)分(fen)(fen)區(qu)(qu)滿(man)足(zu)(zu)規(gui)范要(yao)求，如(ru)果小(xiao)區(qu)(qu)地塊不大、環網(wang)不長，系(xi)(xi)統可采(cai)用(yong)(yong)(yong)DN100的(de)環網(wang)滿(man)足(zu)(zu)規(gui)范要(yao)求，方(fang)(fang)可做(zuo)到系(xi)(xi)統簡單同(tong)時成本(ben)(ben)最優(you)。方(fang)(fang)案(an)二(er)分(fen)(fen)區(qu)(qu)雖然所(suo)有低(di)區(qu)(qu)消火栓(shuan)不用(yong)(yong)(yong)減壓穩壓，但(dan)(dan)是管(guan)道需采(cai)用(yong)(yong)(yong)DN125，管(guan)道成本(ben)(ben)有所(suo)增加；方(fang)(fang)案(an)四(si)分(fen)(fen)區(qu)(qu)滿(man)足(zu)(zu)所(suo)有小(xiao)區(qu)(qu)要(yao)求，可作到系(xi)(xi)統相對(dui)(dui)簡單成本(ben)(ben)也最優(you)。針(zhen)對(dui)(dui)本(ben)(ben)工程(cheng)(cheng)的(de)具體(ti)特點，針(zhen)對(dui)(dui)安全可靠性、系(xi)(xi)統復(fu)雜程(cheng)(cheng)度(du)、經(jing)濟(ji)性、成本(ben)(ben)力進行比(bi)較(jiao)方(fang)(fang)案(an)二(er)最優(you)，方(fang)(fang)案(an)四(si)次(ci)之(zhi)，如(ru)小(xiao)區(qu)(qu)比(bi)較(jiao)大方(fang)(fang)案(an)二(er)不能采(cai)用(yong)(yong)(yong)DN100的(de)環網(wang)管(guan)徑，方(fang)(fang)案(an)四(si)是最優(you)的(de)方(fang)(fang)案(an)。從通用(yong)(yong)(yong)性方(fang)(fang)面考(kao)慮(lv)，方(fang)(fang)案(an)四(si)滿(man)足(zu)(zu)所(suo)有條(tiao)件高低(di)配小(xiao)區(qu)(qu)的(de)經(jing)濟(ji)性、合理性要(yao)求。

參考文獻：

[1]GB50974-2014，消(xiao)防(fang)給水(shui)及消(xiao)火栓(shuan)系統技術規(gui)范[S].

[2]GB/T21386-2008，比例(li)式減(jian)壓閥[S].

[3]GB/T12246-2006，先(xian)導式減壓閥[S]

作者(zhe)：后尚(shang) 單位：廣東博(bo)意(yi)建筑設(she)計院長沙分院