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二次供水設備原理遠程調控系統研制與應用
時間:2020-01-04 16:50 來源:中贏供水 作者:中贏供水廠家 點擊:
次
二次供水設備原理遠程調控系統研制與應用
近年來(lai),隨著(zhu)技術進步和(he)改造資金投入,多數供(gong)(gong)水(shui)企業建立(li)了(le)供(gong)(gong)水(shui)數據監測(ce)與控制系(xi)統(SCADA),實現(xian)了(le)水(shui)源和(he)原水(shui)輸送系(xi)統監測(ce)、凈水(shui)構筑物和(he)工藝設(she)(she)備監控以及供(gong)(gong)水(shui)管(guan)網(wang)(wang)測(ce)壓等功能。中贏供(gong)(gong)水(shui)企業還建立(li)了(le)“呼(hu)叫中心”熱(re)線電話系(xi)統和(he)管(guan)網(wang)(wang)地(di)理信息(xi)系(xi)統(GIS)。上述系(xi)統的建立(li)能及時監控供(gong)(gong)水(shui)設(she)(she)備運(yun)行(xing)和(he)發(fa)現(xian)管(guan)網(wang)(wang)事故,極大提升供(gong)(gong)水(shui)服務水(shui)平。
近年來(lai),隨著(zhu)技術進步和(he)改造資金投入,多數供(gong)(gong)水(shui)企業建立(li)了(le)供(gong)(gong)水(shui)數據監測(ce)與控制系(xi)統(SCADA),實現(xian)了(le)水(shui)源和(he)原水(shui)輸送系(xi)統監測(ce)、凈水(shui)構筑物和(he)工藝設(she)(she)備監控以及供(gong)(gong)水(shui)管(guan)網(wang)(wang)測(ce)壓等功能。中贏供(gong)(gong)水(shui)企業還建立(li)了(le)“呼(hu)叫中心”熱(re)線電話系(xi)統和(he)管(guan)網(wang)(wang)地(di)理信息(xi)系(xi)統(GIS)。上述系(xi)統的建立(li)能及時監控供(gong)(gong)水(shui)設(she)(she)備運(yun)行(xing)和(he)發(fa)現(xian)管(guan)網(wang)(wang)事故,極大提升供(gong)(gong)水(shui)服務水(shui)平。
限(xian)于(yu)技(ji)術、設(she)備和系統設(she)計理(li)念等多方面原因,對管網調(diao)(diao)度管理(li)和運行調(diao)(diao)控還限(xian)于(yu)人工(gong)操作。水壓遙測和事故信(xin)息獲取、采集與(yu)判斷(duan)已(yi)實現信(xin)息化和自動化,但閥門啟(qi)閉和調(diao)(diao)節還必須(xu)依靠操作工(gong)人到(dao)現場手動完成。這(zhe)主要(yao)有(you)以(yi)下(xia)幾點不(bu)足(zu):
①供水(shui)管網(wang)工況(kuang)瞬(shun)時萬變,管網(wang)實時優化運行靠人工現(xian)場(chang)調(diao)節幾乎不(bu)可能實現(xian)。
②為確保(bao)供水系統安(an)全運行,在發生重(zhong)大供水事故時,需對管網中(zhong)若干重(zhong)要閥門(men)多次反復(fu)調控,人工操作(zuo)難以勝任。
③從管網(wang)事(shi)故(gu)信息(xi)的獲取、判斷(duan)到(dao)人工現場調控(kong)閥門,根據城市規模、搶修(xiu)力量及交通路況(kuang)情(qing)況(kuang),會有1h左(zuo)右的延時。這會造成事(shi)故(gu)損失擴大,引發(fa)相關問題(ti)。
④目前(qian)管(guan)網調度模式對(dui)用戶端不(bu)能實現及(ji)時合理的調節(jie)和控制(zhi)。
2二次供水(shui)管網遠程調控的意義
二(er)次供水管網是(shi)供(gong)水系統中的重要設施,起(qi)到輸送、關斷、調節供(gong)水流量、壓力和改(gai)變(bian)流向等管網(wang)調控(kong)作用,是(shi)供(gong)水系統暢(chang)通輸配(pei)和管網(wang)搶修、維(wei)護、改(gai)造的重要保(bao)證(zheng)措施。
二(er)次供水管網上述功能的及(ji)時實現直接(jie)影響供水(shui)安全(quan)和供水(shui)行業的服務(wu)質(zhi)量(liang)。重要的是(shi),當(dang)供水(shui)系(xi)統發生重大(da)故(gu)障以及(ji)處(chu)理(li)大(da)的爆管事(shi)故(gu)時,管網(wang)閥門如不(bu)能及(ji)時有效地調(diao)控將延誤(wu)處(chu)理(li)事(shi)故(gu)時機,造(zao)成嚴重后果。
供(gong)(gong)水管網(wang)科學調(diao)度(du)(du)與實時(shi)調(diao)控(kong)首先要(yao)解決(jue)閥(fa)門遠程調(diao)控(kong)問題,管網(wang)中若(ruo)干重要(yao)閥(fa)門和(he)關鍵閥(fa)門能否實現及(ji)時(shi)有(you)效(xiao)地調(diao)控(kong)直(zhi)接(jie)影(ying)響(xiang)供(gong)(gong)水安(an)全,在調(diao)度(du)(du)中心直(zhi)接(jie)實現對(dui)(dui)管網(wang)重要(yao)閥(fa)門遠程調(diao)控(kong)操作(zuo)對(dui)(dui)保證供(gong)(gong)水系統(tong)安(an)全正常運行具有(you)重要(yao)意義。
二次供(gong)水設備介紹(shao)
中贏(ying)通過(guo)微機控制(zhi)變(bian)頻(pin)(pin)調速(su)來實(shi)(shi)現恒(heng)壓(ya)(ya)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui).首先根據實(shi)(shi)際情(qing)況設定(ding)用(yong)(yong)(yong)(yong)水(shui)(shui)(shui)(shui)(shui)(shui)點工作壓(ya)(ya)力，并(bing)時(shi)刻監測市(shi)(shi)政管(guan)網壓(ya)(ya)力，當壓(ya)(ya)力低于用(yong)(yong)(yong)(yong)戶(hu)(hu)所需壓(ya)(ya)力時(shi)，微機自動(dong)(dong)控制(zhi)子變(bian)頻(pin)(pin)器啟動(dong)(dong)，調節水(shui)(shui)(shui)(shui)(shui)(shui)泵轉速(su)提(ti)高，直(zhi)到管(guan)網壓(ya)(ya)力上升到用(yong)(yong)(yong)(yong)戶(hu)(hu)所需壓(ya)(ya)力，并(bing)控制(zhi)水(shui)(shui)(shui)(shui)(shui)(shui)泵以一(yi)(yi)恒(heng)定(ding)轉速(su)運行進行恒(heng)壓(ya)(ya)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui).當用(yong)(yong)(yong)(yong)水(shui)(shui)(shui)(shui)(shui)(shui)量增加時(shi)轉速(su)提(ti)高，當用(yong)(yong)(yong)(yong)水(shui)(shui)(shui)(shui)(shui)(shui)量減少時(shi)轉速(su)降(jiang)低，時(shi)刻保證用(yong)(yong)(yong)(yong)戶(hu)(hu)的(de)用(yong)(yong)(yong)(yong)水(shui)(shui)(shui)(shui)(shui)(shui)壓(ya)(ya)力恒(heng)定(ding).傳(chuan)統的(de)城(cheng)鎮供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)系(xi)(xi)統可以把(ba)水(shui)(shui)(shui)(shui)(shui)(shui)廠送水(shui)(shui)(shui)(shui)(shui)(shui)到用(yong)(yong)(yong)(yong)戶(hu)(hu)水(shui)(shui)(shui)(shui)(shui)(shui)龍(long)頭的(de)全過(guo)程分離(li)為(wei)一(yi)(yi)次供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)和(he)二(er)次供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)兩個(ge)相對獨立的(de)系(xi)(xi)統，而管(guan)網直(zhi)接增壓(ya)(ya)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)系(xi)(xi)統是將二(er)者(zhe)結合成為(wei)一(yi)(yi)個(ge)整體(ti)的(de)系(xi)(xi)統，變(bian)二(er)次供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)為(wei)一(yi)(yi)次直(zhi)接供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)到戶(hu)(hu).無負壓(ya)(ya)給水(shui)(shui)(shui)(shui)(shui)(shui)設備則是管(guan)網直(zhi)接增壓(ya)(ya)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)系(xi)(xi)統可以使用(yong)(yong)(yong)(yong)的(de)設備.直(zhi)接以市(shi)(shi)政管(guan)網為(wei)水(shui)(shui)(shui)(shui)(shui)(shui)源(yuan)、形(xing)成連續密閉的(de)接力增壓(ya)(ya)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)方式，徹底避(bi)免(mian)了傳(chuan)統2次增壓(ya)(ya)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)系(xi)(xi)統造成的(de)水(shui)(shui)(shui)(shui)(shui)(shui)質標準(zhun)降(jiang)低和(he)各種水(shui)(shui)(shui)(shui)(shui)(shui)源(yuan)污染問(wen)題，完全保持了市(shi)(shi)政水(shui)(shui)(shui)(shui)(shui)(shui)源(yuan)的(de)水(shui)(shui)(shui)(shui)(shui)(shui)質標準(zhun)充(chong)分利用(yong)(yong)(yong)(yong)市(shi)(shi)政水(shui)(shui)(shui)(shui)(shui)(shui)源(yuan)本身壓(ya)(ya)力熱(re)能，差多少補多少，切(qie)實(shi)(shi)有效(xiao)地、最大限度(du)地發(fa)揮了變(bian)頻(pin)(pin)調速(su)的(de)節能效(xiao)果。
二次供水設備應用范(fan)圍
a、二次供水設備適用(yong)于新建的(de)住宅小區、別墅、寫字(zi)樓、綜(zong)合樓生活供水。
b、高層建筑、消防用水、高級賓館飯店等的生活供水。
c、二(er)次(ci)供(gong)(gong)水(shui)設(she)備適用于(yu)氣(qi)壓給(gei)水(shui),地(di)面水(shui)池加壓等傳(chuan)統(tong)供(gong)(gong)水(shui)系(xi)統(tong)改造(zao)。
d、各種(zhong)鍋爐冷水(shui)供水(shui)系統、鍋爐熱水(shui)。
e、自來(lai)水廠(chang)的中(zhong)間加壓(ya)泵站(zhan)、自來(lai)水二次增壓(ya)。
f、各(ge)工(gong)礦企(qi)業的生產、生活用水、管網穩壓。
g、各(ge)種類型的(de)循(xun)環水、冷(leng)卻水供應系統。
h、二次供(gong)水(shui)設備可以用于(yu)自來水(shui)壓(ya)力不能滿(man)足要求(qiu)的(de)生(sheng)活、消防加壓(ya)供(gong)水(shui)等。
二次供水設(she)備安裝使用及保養
1、二(er)次供水設備(bei)安裝應選擇通風(feng)良好、灰塵少、不(bu)潮濕的(de)場地，環境濕度(du)為-10℃-40℃.在室外應設防(fang)(fang)雨，防(fang)(fang)雷(lei)等設施.
2、為方便(bian)二(er)次供水設(she)備安裝、保養、設(she)備四(si)周應(ying)留70cm空(kong)間(jian)(jian)，人孔處應(ying)保留1.5m空(kong)間(jian)(jian)，四(si)周地(di)面(mian)應(ying)設(she)排水溝.
3、選定二次(ci)供(gong)水設備場(chang)地后(hou)，要處理(li)好地基、在用砼(tong)澆注或用磚石(shi)砌筑罐體(ti)(ti)支承座(zuo).待基座(zuo)完全固化(hua)后(hou)，再吊裝罐體(ti)(ti)并放穩，隨后(hou)安裝附件(jian)，接通電源.
4、在試車前びο裙乇展┧閥(fa)(fa)，檢查(cha)二次供水(shui)(shui)設備各(ge)密(mi)封閥(fa)(fa)情況，不允許有泄露(lu)現象(xiang)た車后，應注(zhu)意機泵轉向.當壓(ya)力表(biao)指針到上限時，機泵自動(dong)停止.打開供水(shui)(shui)閥(fa)(fa)，即(ji)可正常供水(shui)(shui)、如需定時供水(shui)(shui)，可把選擇開關扳(ban)到手動(dong)位置.
5、二(er)次供水(shui)設備(bei)(bei)泵(beng)機組應經(jing)常(chang)檢(jian)查(cha)，定(ding)期(qi)保養并加(jia)注潤滑油(you).離(li)心(xin)泵(beng)和止回(hui)閥如發現(xian)(xian)漏水(shui)現(xian)(xian)象(xiang)，應及時緊固(gu)法蘭螺絲或更換石棉根(gen)，檢(jian)查(cha)機泵(beng)底腳(jiao)螺栓不(bu)能松動，以防損(sun)壞(huai)二(er)次供水(shui)設備(bei)(bei).
6、二(er)次(ci)供水(shui)設(she)備系統(tong)びΨ浪(lang)、防(fang)塵(chen)、經常(chang)檢查線(xian)路(lu)絕(jue)緣(yuan)情(qing)況，連(lian)接(jie)螺(luo)栓是(shi)否松動和保險絲(si)完好等情(qing)況.壓(ya)力表外(wai)部用透明材料包裹，以防(fang)損壞二(er)次(ci)供水(shui)設(she)備.
7、罐體(ti)如(ru)發現漆(qi)皮脫落(luo)，應(ying)及時涂漆(qi)保養，以延長(chang)二(er)次供水(shui)設備使用壽命.
