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目前已進入夏季(ji),由于用(yong)(yong)(yong)水需求(qiu)增加,市區部分高樓層用(yong)(yong)(yong)戶(hu)尤(you)其是沒有加壓裝(zhuang)置的八層、九層用(yong)(yong)(yong)戶(hu)水壓有所降低(di)。我公司建議有關用(yong)(yong)(yong)戶(hu)以小區為(wei)單位(wei),集體安裝(zhuang)無負壓增壓設(she)備,以解決水壓問題。
目(mu)(mu)前市(shi)區(qu)部分高(gao)樓層用(yong)戶水(shui)(shui)(shui)(shui)壓(ya)(ya)(ya)降低主(zhu)要是(shi)三個方面(mian)的(de)原(yuan)因(yin)(yin)。一是(shi)城市(shi)擴張快,用(yong)水(shui)(shui)(shui)(shui)需(xu)求(qiu)量增(zeng)加(jia)。近(jin)年來,隨著城市(shi)發展加(jia)快,市(shi)區(qu)供水(shui)(shui)(shui)(shui)需(xu)求(qiu)以平均每年6%的(de)幅度增(zeng)長,目(mu)(mu)前,河(he)(he)東(dong)水(shui)(shui)(shui)(shui)廠(chang)已滿負荷生產,未能滿足(zu)用(yong)水(shui)(shui)(shui)(shui)需(xu)求(qiu),供求(qiu)矛盾日益突出。二是(shi)河(he)(he)西(xi)水(shui)(shui)(shui)(shui)廠(chang)增(zeng)壓(ya)(ya)(ya)作用(yong)有(you)限。河(he)(he)西(xi)水(shui)(shui)(shui)(shui)廠(chang)和河(he)(he)東(dong)水(shui)(shui)(shui)(shui)廠(chang)生產出來的(de)自(zi)來水(shui)(shui)(shui)(shui)都是(shi)供入市(shi)區(qu)管(guan)網(wang),市(shi)區(qu)管(guan)網(wang)是(shi)互聯互通的(de),我們曾試圖(tu)加(jia)大(da)(da)河(he)(he)西(xi)水(shui)(shui)(shui)(shui)廠(chang)的(de)壓(ya)(ya)(ya)力,提高(gao)市(shi)區(qu)水(shui)(shui)(shui)(shui)壓(ya)(ya)(ya),實踐證明也行(xing)(xing)不通。因(yin)(yin)為河(he)(he)西(xi)水(shui)(shui)(shui)(shui)廠(chang)建廠(chang)50年,設備老化,河(he)(he)西(xi)片(pian)區(qu)管(guan)網(wang)殘舊,河(he)(he)西(xi)的(de)地勢(shi)高(gao)程比河(he)(he)東(dong)低約10米,如(ru)果河(he)(he)西(xi)水(shui)(shui)(shui)(shui)廠(chang)盲目(mu)(mu)加(jia)壓(ya)(ya)(ya),河(he)(he)西(xi)片(pian)區(qu)的(de)供水(shui)(shui)(shui)(shui)管(guan)網(wang)壓(ya)(ya)(ya)力過高(gao),勢(shi)必導致爆管(guan),造成(cheng)大(da)(da)面(mian)積停(ting)水(shui)(shui)(shui)(shui)。三是(shi)水(shui)(shui)(shui)(shui)表(biao)后(hou)由用(yong)戶或開發商自(zi)行(xing)(xing)安裝的(de)供水(shui)(shui)(shui)(shui)設施可能存在問題。可能的(de)原(yuan)因(yin)(yin)有(you):水(shui)(shui)(shui)(shui)管(guan)設計走向不合理(li),影響(xiang)水(shui)(shui)(shui)(shui)壓(ya)(ya)(ya);管(guan)徑過小,影響(xiang)水(shui)(shui)(shui)(shui)壓(ya)(ya)(ya);材質為鍍鋅管(guan),老化后(hou)內(nei)壁生銹阻塞,影響(xiang)水(shui)(shui)(shui)(shui)壓(ya)(ya)(ya)。
為(wei)了(le)改善市區供(gong)水(shui)壓(ya)力(li),我(wo)公(gong)(gong)(gong)司未雨綢繆(mou),解決我(wo)市城(cheng)(cheng)區供(gong)水(shui)管(guan)網大(da)部分(fen)殘(can)舊老(lao)化(hua)等問(wen)題,保障(zhang)城(cheng)(cheng)市居民用(yong)水(shui)安全,我(wo)公(gong)(gong)(gong)司將(jiang)投(tou)(tou)入(ru)2.4億(yi)元建設城(cheng)(cheng)區舊管(guan)網改造工(gong)(gong)(gong)程項(xiang)目,項(xiang)目于(yu)2016年(nian)11月開工(gong)(gong)(gong),工(gong)(gong)(gong)程分(fen)9年(nian)實施(shi),預(yu)計(ji)2025年(nian)7月全部驗收及交付使用(yong)(詳見茂名晚報第(di)2017-04-21期(qi)第(di)05版(ban):茂名·民生(sheng)(sheng))。目前(qian),油(you)城(cheng)(cheng)三路河西水(shui)廠出廠主管(guan)跨過永久橋(qiao)聯通河東(dong)供(gong)水(shui)管(guan)道的DN800管(guan)網改造工(gong)(gong)(gong)程正在抓緊施(shi)工(gong)(gong)(gong)中,預(yu)計(ji)本月下旬(xun)可竣工(gong)(gong)(gong)通水(shui),我(wo)公(gong)(gong)(gong)司將(jiang)適度提高河西水(shui)廠出廠壓(ya)力(li),屆時市區水(shui)壓(ya)將(jiang)得到較大(da)改善。此外,河東(dong)水(shui)廠第(di)三期(qi)工(gong)(gong)(gong)程(生(sheng)(sheng)產能力(li)日10萬立方(fang)米)已完成招投(tou)(tou)標工(gong)(gong)(gong)作,不久將(jiang)開工(gong)(gong)(gong),在河東(dong)水(shui)廠第(di)三期(qi)工(gong)(gong)(gong)程竣工(gong)(gong)(gong)投(tou)(tou)入(ru)使用(yong)后,市區水(shui)壓(ya)不足的問(wen)題將(jiang)得到有(you)效改善。
需(xu)要說明(ming)的是,目前市區的水(shui)壓(ya)是達標(biao)(biao)的。根據《中華人民(min)共和國城鎮建(jian)設行業標(biao)(biao)準》(CJ/T 316—2009),供(gong)(gong)水(shui)管(guan)網末梢壓(ya)力不低于0.14Mpa(即14米水(shui)柱高度(du),約相當于四(si)層(ceng)(ceng)(ceng)樓的高度(du))即為達標(biao)(biao),簡(jian)明(ming)地說,四(si)層(ceng)(ceng)(ceng)樓以下(包括(kuo)四(si)層(ceng)(ceng)(ceng)樓)為供(gong)(gong)水(shui)企業水(shui)壓(ya)服(fu)務范圍,四(si)層(ceng)(ceng)(ceng)樓以上供(gong)(gong)水(shui)屬二次供(gong)(gong)水(shui)范疇,應由(you)開發商或用(yong)戶自行解決(jue)。目前市區擴大,用(yong)水(shui)需(xu)求增(zeng)加,我公(gong)司(si)已無法(fa)供(gong)(gong)到八層(ceng)(ceng)(ceng)、九層(ceng)(ceng)(ceng)樓,但水(shui)壓(ya)仍然高于國家標(biao)(biao)準。
基(ji)于國(guo)家水壓(ya)標(biao)準和市(shi)區管網實際(ji),我公司建議(yi)市(shi)區沒有(you)加壓(ya)裝置的高樓層用戶(hu),以(yi)小區為單位集體(ti)安裝無負壓(ya)增壓(ya)裝置,以(yi)解(jie)決(jue)用水問題。