中贏(ying)箱泵一(yi)體化給水設備的(de)特點及合理應(ying)用

      無(wu)負(fu)壓(ya)給水(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)是利用(yong)市政(zheng)(zheng)管網的(de)(de)壓(ya)力，供(gong)(gong)(gong)水(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)在(zai)市政(zheng)(zheng)管網上直接吸水(shui)(shui)(shui)(shui)供(gong)(gong)(gong)給用(yong)戶(hu)的(de)(de)供(gong)(gong)(gong)水(shui)(shui)(shui)(shui)機組(zu)；采(cai)取保護措施，確保管網并(bing)不產生負(fu)壓(ya)，在(zai)保證市政(zheng)(zheng)管網供(gong)(gong)(gong)水(shui)(shui)(shui)(shui)不受影響的(de)(de)前提下，利用(yong)市政(zheng)(zheng)管網余壓(ya)供(gong)(gong)(gong)水(shui)(shui)(shui)(shui)，節約(yue)供(gong)(gong)(gong)水(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)的(de)(de)能耗(hao)。無(wu)負(fu)壓(ya)供(gong)(gong)(gong)水(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)在(zai)現在(zai)的(de)(de)城市供(gong)(gong)(gong)水(shui)(shui)(shui)(shui)中應用(yong)越(yue)來越(yue)多，起到了很好的(de)(de)節約(yue)能源的(de)(de)效(xiao)果(guo)。

　　前些年由于擔心直接在(zai)市政管(guan)網上吸(xi)水(shui)(shui)對城市供(gong)水(shui)(shui)管(guan)網的(de)影(ying)響(xiang)，無(wu)負(fu)(fu)壓供(gong)水(shui)(shui)設備(bei)一直沒有得到(dao)很好(hao)推廣，在(zai)北京等試點城市采用無(wu)負(fu)(fu)壓設備(bei)后(hou)，無(wu)負(fu)(fu)壓供(gong)水(shui)(shui)設備(bei)的(de)防止(zhi)供(gong)水(shui)(shui)二次(ci)污染(ran)、節(jie)約(yue)能耗的(de)優點得到(dao)了認可，并且隨著管(guan)理(li)的(de)完善，各(ge)地(di)供(gong)水(shui)(shui)部門(men)制(zhi)定(ding)了無(wu)負(fu)(fu)壓設備(bei)準用的(de)條件，也保證(zheng)了城市管(guan)網供(gong)水(shui)(shui)的(de)安全(quan)。

1.罐式無負(fu)壓給水設(she)備

　　罐式無(wu)負壓設備是普遍(bian)采用(yong)的(de)供水設備，設備的(de)供水原理如下(xia)：

　　主要(yao)由供(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)組、穩(wen)流(liu)裝置、倒流(liu)防止(zhi)器(qi)(qi)(qi)、控制(zhi)裝置、負壓(ya)消除器(qi)(qi)(qi)等部(bu)分(fen)組成(cheng)(cheng)，其工作原理是在(zai)(zai)管(guan)(guan)(guan)網(wang)(wang)(wang)壓(ya)力(li)(li)允許的(de)情形下直接從管(guan)(guan)(guan)網(wang)(wang)(wang)吸(xi)(xi)水(shui)(shui)(shui)(shui)(shui)，利用(yong)(yong)市(shi)政(zheng)管(guan)(guan)(guan)網(wang)(wang)(wang)的(de)壓(ya)力(li)(li)，節約能(neng)(neng)源。無(wu)(wu)負壓(ya)供(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)設(she)備吸(xi)(xi)水(shui)(shui)(shui)(shui)(shui)量(liang)(liang)小于(yu)管(guan)(guan)(guan)網(wang)(wang)(wang)供(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)能(neng)(neng)力(li)(li)時(shi)，并(bing)不(bu)(bu)(bu)會造(zao)成(cheng)(cheng)管(guan)(guan)(guan)網(wang)(wang)(wang)壓(ya)力(li)(li)的(de)降(jiang)(jiang)低(di)(di)，但(dan)在(zai)(zai)用(yong)(yong)水(shui)(shui)(shui)(shui)(shui)高(gao)峰(feng)時(shi)段，水(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)的(de)吸(xi)(xi)水(shui)(shui)(shui)(shui)(shui)量(liang)(liang)大(da)于(yu)管(guan)(guan)(guan)網(wang)(wang)(wang)供(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)量(liang)(liang)時(shi)，市(shi)政(zheng)管(guan)(guan)(guan)網(wang)(wang)(wang)壓(ya)力(li)(li)降(jiang)(jiang)低(di)(di)，造(zao)成(cheng)(cheng)穩(wen)流(liu)器(qi)(qi)(qi)內壓(ya)力(li)(li)也相應(ying)的(de)降(jiang)(jiang)低(di)(di)，當(dang)(dang)穩(wen)流(liu)器(qi)(qi)(qi)的(de)壓(ya)力(li)(li)降(jiang)(jiang)至低(di)(di)于(yu)大(da)氣壓(ya)力(li)(li)時(shi)，穩(wen)流(liu)補償器(qi)(qi)(qi)上部(bu)的(de)負壓(ya)防止(zhi)器(qi)(qi)(qi)打(da)開，水(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)從穩(wen)流(liu)器(qi)(qi)(qi)內吸(xi)(xi)水(shui)(shui)(shui)(shui)(shui)，此(ci)時(shi)穩(wen)流(liu)器(qi)(qi)(qi)和大(da)氣連通(tong)，相當(dang)(dang)于(yu)一個小的(de)盛水(shui)(shui)(shui)(shui)(shui)容器(qi)(qi)(qi)。在(zai)(zai)此(ci)條(tiao)件下，無(wu)(wu)負壓(ya)供(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)設(she)備并(bing)不(bu)(bu)(bu)能(neng)(neng)利用(yong)(yong)管(guan)(guan)(guan)網(wang)(wang)(wang)的(de)供(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)壓(ya)力(li)(li)，穩(wen)流(liu)器(qi)(qi)(qi)內的(de)水(shui)(shui)(shui)(shui)(shui)被吸(xi)(xi)完后(hou)，機組將(jiang)不(bu)(bu)(bu)得不(bu)(bu)(bu)減少供(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)量(liang)(liang)甚至停(ting)水(shui)(shui)(shui)(shui)(shui)，等管(guan)(guan)(guan)網(wang)(wang)(wang)壓(ya)力(li)(li)增(zeng)高(gao)后(hou)，設(she)備才能(neng)(neng)利用(yong)(yong)管(guan)(guan)(guan)網(wang)(wang)(wang)余(yu)壓(ya)正(zheng)常(chang)供(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)。由此(ci)可(ke)見，罐式無(wu)(wu)負壓(ya)供(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)設(she)備在(zai)(zai)使用(yong)(yong)時(shi)，要(yao)求市(shi)政(zheng)管(guan)(guan)(guan)網(wang)(wang)(wang)在(zai)(zai)高(gao)峰(feng)用(yong)(yong)水(shui)(shui)(shui)(shui)(shui)時(shi)能(neng)(neng)滿足罐式無(wu)(wu)負壓(ya)設(she)備供(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)量(liang)(liang)，使穩(wen)流(liu)器(qi)(qi)(qi)內壓(ya)力(li)(li)高(gao)于(yu)大(da)氣壓(ya)力(li)(li)，否則很(hen)可(ke)能(neng)(neng)要(yao)停(ting)水(shui)(shui)(shui)(shui)(shui)影響用(yong)(yong)戶的(de)正(zheng)常(chang)用(yong)(yong)水(shui)(shui)(shui)(shui)(shui)。

2.箱泵一體化給水(shui)設(she)備(bei)

　　箱泵一(yi)體化給水(shui)設(she)備(bei)是近幾年才發(fa)展(zhan)起來的(de)一(yi)種無(wu)負壓(ya)供水(shui)設(she)備(bei)，它改進了罐(guan)式無(wu)負壓(ya)供水(shui)設(she)備(bei)在高(gao)峰(feng)用水(shui)時，調(diao)節能力不(bu)足(zu)，容易停水(shui)的(de)缺點。箱泵一(yi)體化給水(shui)設(she)備(bei)較(jiao)之罐式(shi)無(wu)負壓(ya)供水設備，主要是(shi)增(zeng)加了水(shui)(shui)箱(xiang)(xiang)(xiang)，在高(gao)峰用(yong)水(shui)(shui)時(shi)(shi)，由(you)水(shui)(shui)箱(xiang)(xiang)(xiang)供水(shui)(shui)。箱(xiang)(xiang)(xiang)泵一(yi)體化給水(shui)(shui)設備(bei)增(zeng)加了水(shui)(shui)箱(xiang)(xiang)(xiang)，采(cai)用(yong)的(de)(de)水(shui)(shui)箱(xiang)(xiang)(xiang)和外界隔絕，避(bi)免(mian)外面的(de)(de)污染物進入到水(shui)(shui)箱(xiang)(xiang)(xiang)內。選擇合適大(da)小的(de)(de)水(shui)(shui)箱(xiang)(xiang)(xiang)，避(bi)免(mian)了水(shui)(shui)箱(xiang)(xiang)(xiang)內的(de)(de)水(shui)(shui)停留(liu)時(shi)(shi)間過長；在控制系統中增(zeng)加定(ding)時(shi)(shi)器(qi)，定(ding)時(shi)(shi)對水(shui)(shui)箱(xiang)(xiang)(xiang)內的(de)(de)水(shui)(shui)進行循環使用(yong)，，解決水(shui)(shui)箱(xiang)(xiang)(xiang)內循環問題，保證了水(shui)(shui)箱(xiang)(xiang)(xiang)內水(shui)(shui)質(zhi)新(xin)鮮。

　　智能增(zeng)壓箱式無(wu)負壓設備(bei)工作原理如下：

　　箱(xiang)(xiang)泵一(yi)體(ti)化給(gei)(gei)水(shui)設(she)備(bei)(bei)分為兩(liang)類(lei)，一(yi)種為市(shi)(shi)(shi)場上常見的箱(xiang)(xiang)式(shi)無(wu)負(fu)(fu)(fu)壓(ya)(ya)設(she)備(bei)(bei)。在市(shi)(shi)(shi)政(zheng)(zheng)管(guan)網(wang)(wang)(wang)壓(ya)(ya)力(li)(li)不(bu)足(zu)的時(shi)(shi)候，完全和市(shi)(shi)(shi)政(zheng)(zheng)管(guan)網(wang)(wang)(wang)斷開，切換為由(you)敞(chang)開式(shi)水(shui)箱(xiang)(xiang)來供水(shui)，這就(jiu)成了(le)市(shi)(shi)(shi)政(zheng)(zheng)管(guan)網(wang)(wang)(wang)壓(ya)(ya)力(li)(li)高時(shi)(shi)為無(wu)負(fu)(fu)(fu)壓(ya)(ya)狀態供水(shui)，在市(shi)(shi)(shi)政(zheng)(zheng)管(guan)網(wang)(wang)(wang)壓(ya)(ya)力(li)(li)低時(shi)(shi)為水(shui)箱(xiang)(xiang)加(jia)水(shui)泵供水(shui)模式(shi)。這種在市(shi)(shi)(shi)政(zheng)(zheng)管(guan)網(wang)(wang)(wang)壓(ya)(ya)力(li)(li)低時(shi)(shi)切斷了(le)市(shi)(shi)(shi)政(zheng)(zheng)管(guan)網(wang)(wang)(wang)的供水(shui)，用戶的所有用水(shui)量(liang)都由(you)水(shui)箱(xiang)(xiang)儲水(shui)量(liang)來供水(shui)的箱(xiang)(xiang)泵一(yi)體(ti)化給(gei)(gei)水(shui)設(she)備(bei)(bei)本(ben)文(wen)中(zhong)稱為切換式(shi)箱(xiang)(xiang)泵一(yi)體(ti)化給(gei)(gei)水(shui)設(she)備(bei)(bei)。切換式(shi)箱(xiang)(xiang)泵一(yi)體(ti)化給(gei)(gei)水(shui)設(she)備(bei)(bei)在市(shi)(shi)(shi)政(zheng)(zheng)管(guan)網(wang)(wang)(wang)壓(ya)(ya)力(li)(li)低時(shi)(shi)無(wu)負(fu)(fu)(fu)壓(ya)(ya)設(she)備(bei)(bei)不(bu)能(neng)利用市(shi)(shi)(shi)政(zheng)(zheng)管(guan)網(wang)(wang)(wang)壓(ya)(ya)力(li)(li)，用戶端供水(shui)壓(ya)(ya)力(li)(li)會明(ming)顯降低，導致(zhi)有些用戶因壓(ya)(ya)力(li)(li)不(bu)足(zu)，無(wu)法供水(shui)。

　　另一(yi)種為增(zeng)壓(ya)(ya)(ya)(ya)式(shi)(shi)箱泵(beng)(beng)一(yi)體(ti)化給水設備(bei)。在(zai)市政(zheng)(zheng)(zheng)(zheng)供(gong)(gong)(gong)水壓(ya)(ya)(ya)(ya)力(li)(li)不(bu)足的(de)(de)情況下，設備(bei)首(shou)先保證(zheng)市政(zheng)(zheng)(zheng)(zheng)管(guan)(guan)網(wang)(wang)的(de)(de)壓(ya)(ya)(ya)(ya)力(li)(li)，減少從市政(zheng)(zheng)(zheng)(zheng)管(guan)(guan)網(wang)(wang)的(de)(de)抽水量(liang)，用(yong)(yong)戶用(yong)(yong)水量(liang)和(he)市政(zheng)(zheng)(zheng)(zheng)管(guan)(guan)網(wang)(wang)所能(neng)(neng)供(gong)(gong)(gong)給的(de)(de)水量(liang)的(de)(de)差額(e)由水箱來(lai)補(bu)充(chong)，這就是所謂(wei)的(de)(de)差量(liang)補(bu)償的(de)(de)方式(shi)(shi)來(lai)供(gong)(gong)(gong)水，這樣(yang)可以充(chong)分(fen)(fen)利用(yong)(yong)市政(zheng)(zheng)(zheng)(zheng)管(guan)(guan)網(wang)(wang)的(de)(de)壓(ya)(ya)(ya)(ya)力(li)(li)和(he)供(gong)(gong)(gong)水量(liang)，節約能(neng)(neng)量(liang)，并減小了水箱的(de)(de)容積。增(zeng)壓(ya)(ya)(ya)(ya)式(shi)(shi)箱泵(beng)(beng)一(yi)體(ti)化給水設備(bei)水箱中水的(de)(de)壓(ya)(ya)(ya)(ya)力(li)(li)是由水箱內設置(zhi)的(de)(de)增(zeng)壓(ya)(ya)(ya)(ya)裝(zhuang)(zhuang)(zhuang)置(zhi)來(lai)增(zeng)壓(ya)(ya)(ya)(ya)供(gong)(gong)(gong)水，增(zeng)壓(ya)(ya)(ya)(ya)裝(zhuang)(zhuang)(zhuang)置(zhi)是一(yi)個(ge)泵(beng)(beng)閥組合體(ti)，要(yao)求(qiu)增(zeng)壓(ya)(ya)(ya)(ya)裝(zhuang)(zhuang)(zhuang)置(zhi)的(de)(de)壓(ya)(ya)(ya)(ya)力(li)(li)要(yao)和(he)市政(zheng)(zheng)(zheng)(zheng)管(guan)(guan)網(wang)(wang)的(de)(de)壓(ya)(ya)(ya)(ya)力(li)(li)相當，如果增(zeng)壓(ya)(ya)(ya)(ya)裝(zhuang)(zhuang)(zhuang)置(zhi)的(de)(de)壓(ya)(ya)(ya)(ya)力(li)(li)比市政(zheng)(zheng)(zheng)(zheng)管(guan)(guan)網(wang)(wang)的(de)(de)壓(ya)(ya)(ya)(ya)力(li)(li)高很(hen)多，會(hui)(hui)造成市政(zheng)(zheng)(zheng)(zheng)管(guan)(guan)網(wang)(wang)在(zai)供(gong)(gong)(gong)水能(neng)(neng)力(li)(li)的(de)(de)范圍內供(gong)(gong)(gong)水能(neng)(neng)力(li)(li)降低，不(bu)能(neng)(neng)充(chong)分(fen)(fen)利用(yong)(yong)市政(zheng)(zheng)(zheng)(zheng)管(guan)(guan)網(wang)(wang)的(de)(de)壓(ya)(ya)(ya)(ya)力(li)(li)、流量(liang)。因市政(zheng)(zheng)(zheng)(zheng)管(guan)(guan)網(wang)(wang)壓(ya)(ya)(ya)(ya)力(li)(li)會(hui)(hui)有所波動，所以增(zeng)壓(ya)(ya)(ya)(ya)裝(zhuang)(zhuang)(zhuang)置(zhi)的(de)(de)供(gong)(gong)(gong)水壓(ya)(ya)(ya)(ya)力(li)(li)要(yao)能(neng)(neng)夠根(gen)據市政(zheng)(zheng)(zheng)(zheng)管(guan)(guan)網(wang)(wang)的(de)(de)壓(ya)(ya)(ya)(ya)力(li)(li)來(lai)調整(zheng)。

3.箱泵一體(ti)化給水設備的正確選(xuan)用

　　以下所說的箱泵一體(ti)化給水設備(bei)都是指增壓(ya)式(shi)箱式(shi)無負壓(ya)給水設備(bei)。

　　3.1根據不同(tong)(tong)市政(zheng)條件、不同(tong)(tong)用(yong)(yong)戶(hu)的(de)用(yong)(yong)水(shui)要求(qiu)，正確選(xuan)用(yong)(yong)無負壓給(gei)水(shui)設備(bei)。在(zai)市政(zheng)壓力充足(zu)(zu)、流量滿足(zu)(zu)滿足(zu)(zu)高(gao)峰(feng)用(yong)(yong)水(shui)量情況(kuang)下，罐式無負壓給(gei)水(shui)設備(bei)完全可以滿足(zu)(zu)用(yong)(yong)戶(hu)用(yong)(yong)水(shui)的(de)要求(qiu)，就沒必要選(xuan)用(yong)(yong)箱式無負壓。此(ci)情形下，如(ru)果選(xuan)擇箱泵一體(ti)化(hua)給(gei)水(shui)設備(bei)，并不能(neng)更(geng)好的(de)滿足(zu)(zu)用(yong)(yong)戶(hu)的(de)用(yong)(yong)水(shui)要求(qiu)，既增加(jia)了水(shui)箱成本，還存在(zai)水(shui)質在(zai)水(shui)箱內二(er)次污染的(de)可能(neng)性(xing)。

　　3.2有些用(yong)戶比如高級賓(bin)館、醫院(yuan)等，有供水(shui)安全(quan)性的考慮，需要儲(chu)存一定的水(shui)量(liang)，采用(yong)箱式無(wu)負壓既能節約能量(liang)，又能滿足儲(chu)存一定水(shui)量(liang)的要求(qiu)，因此采用(yong)箱式無(wu)負壓設備更合適(shi)。

　　3.3 箱泵一(yi)體(ti)化給水(shui)(shui)設備要選(xuan)用(yong)合理的(de)(de)水(shui)(shui)箱。水(shui)(shui)箱的(de)(de)有(you)效容積(ji)為高峰用(yong)水(shui)(shui)時段的(de)(de)用(yong)水(shui)(shui)量(liang)(liang)(liang)減(jian)去在(zai)此時段內市政(zheng)(zheng)管(guan)(guan)網的(de)(de)補(bu)(bu)充(chong)的(de)(de)水(shui)(shui)量(liang)(liang)(liang)。高峰用(yong)水(shui)(shui)時段市政(zheng)(zheng)管(guan)(guan)網的(de)(de)補(bu)(bu)充(chong)的(de)(de)水(shui)(shui)量(liang)(liang)(liang)的(de)(de)供水(shui)(shui)量(liang)(liang)(liang)不易(yi)確定，在(zai)沒有(you)市政(zheng)(zheng)部門(men)準確數據的(de)(de)情形下，建(jian)議根(gen)據市政(zheng)(zheng)管(guan)(guan)網最低壓(ya)力(li)，計算(suan)市政(zheng)(zheng)管(guan)(guan)網的(de)(de)補(bu)(bu)充(chong)水(shui)(shui)量(liang)(liang)(liang)，確定水(shui)(shui)箱的(de)(de)容積(ji)。

　　3.4 在市(shi)政管(guan)(guan)網壓力過低，無(wu)負壓設備的節(jie)能效果就會明(ming)顯(xian)降低甚至沒有節(jie)能效果。從(cong)市(shi)政管(guan)(guan)網到供水(shui)設備，要設置有倒流防止器、閥(fa)門等(deng)其水(shui)頭(tou)損失(shi)在0.1Mpa左右；一般(ban)市(shi)政管(guan)(guan)網供水(shui)壓力在0.2Mpa以上節(jie)能效果才顯(xian)著。

　　3.5市政部門不允許(xu)采(cai)用(yong)無負壓(ya)設備(bei)供水時，要選用(yong)其(qi)它供水設備(bei)。

4 結論 

      箱(xiang)泵(beng)(beng)(beng)(beng)(beng)一(yi)(yi)(yi)體化(hua)(hua)給(gei)水設(she)(she)(she)(she)備(bei)(bei)比(bi)罐(guan)式(shi)(shi)無負壓(ya)給(gei)水設(she)(she)(she)(she)備(bei)(bei)更節(jie)能(neng)，能(neng)更好(hao)的(de)(de)滿足用(yong)(yong)戶(hu)(hu)的(de)(de)用(yong)(yong)水需求，切換式(shi)(shi)箱(xiang)泵(beng)(beng)(beng)(beng)(beng)一(yi)(yi)(yi)體化(hua)(hua)給(gei)水設(she)(she)(she)(she)備(bei)(bei)和增(zeng)(zeng)壓(ya)式(shi)(shi)箱(xiang)泵(beng)(beng)(beng)(beng)(beng)一(yi)(yi)(yi)體化(hua)(hua)給(gei)水設(she)(she)(she)(she)備(bei)(bei)工(gong)作原理有很大的(de)(de)不同，增(zeng)(zeng)壓(ya)式(shi)(shi)箱(xiang)泵(beng)(beng)(beng)(beng)(beng)一(yi)(yi)(yi)體化(hua)(hua)給(gei)水設(she)(she)(she)(she)備(bei)(bei)性能(neng)更優(you)，是真正意(yi)義上的(de)(de)箱(xiang)泵(beng)(beng)(beng)(beng)(beng)一(yi)(yi)(yi)體化(hua)(hua)給(gei)水設(she)(she)(she)(she)備(bei)(bei)。增(zeng)(zeng)壓(ya)式(shi)(shi)箱(xiang)式(shi)(shi)箱(xiang)泵(beng)(beng)(beng)(beng)(beng)一(yi)(yi)(yi)體化(hua)(hua)給(gei)水設(she)(she)(she)(she)備(bei)(bei)在(zai)高峰(feng)用(yong)(yong)水時段能(neng)充分利用(yong)(yong)市政管網的(de)(de)壓(ya)力和水量來滿足用(yong)(yong)戶(hu)(hu)的(de)(de)用(yong)(yong)水需要，避免了罐(guan)式(shi)(shi)無負壓(ya)設(she)(she)(she)(she)備(bei)(bei)停水影響用(yong)(yong)戶(hu)(hu)用(yong)(yong)水的(de)(de)問題，箱(xiang)式(shi)(shi)無負壓(ya)給(gei)水設(she)(she)(she)(she)備(bei)(bei)具有很好(hao)的(de)(de)應用(yong)(yong)前景(jing)。正確選用(yong)(yong)箱(xiang)泵(beng)(beng)(beng)(beng)(beng)一(yi)(yi)(yi)體化(hua)(hua)給(gei)水設(she)(she)(she)(she)備(bei)(bei)才能(neng)更好(hao)的(de)(de)滿足用(yong)(yong)戶(hu)(hu)的(de)(de)需要，節(jie)約能(neng)源，起到良好(hao)的(de)(de)經濟(ji)、社會效益(yi)。