變頻恒壓供水系(xi)統(tong)對泵電機實行無級(ji)調速,根據用(yong)水(shui)(shui)(shui)量(liang)和水(shui)(shui)(shui)壓變化,通(tong)過微機檢(jian)測計算,自動改變泵速,保持水(shui)(shui)(shui)壓恒定(ding),滿足用(yong)水(shui)(shui)(shui)需(xu)求。是(shi)目前(qian)更先 進(jin)、最合理的節能供水(shui)(shui)(shui)系(xi)統(tong)。與(yu)傳(chuan)統(tong)的水(shui)(shui)(shui)塔、高位水(shui)(shui)(shui)箱、氣壓罐等供水(shui)(shui)(shui)方式相比,在系(xi)統(tong)投資(zi)、運行經濟性、穩定(ding)性、可靠性、自動化等方面具有優勢,具體體現在:
(1)操作簡(jian)單,省時省力。
(2)體積小,投資少,效率高(gao)。
(3)功能齊全,配置靈活,自動(dong)化程度高。
(4)合理運行,由(you)于(yu) 平(ping)均轉速(su)的降(jiang)低,軸上的平(ping)均扭(niu)矩和磨損減少,泵(beng)的使用壽命將大大提高。
(5)高(gao)效節能(neng)。與傳統供水方(fang)式(shi)相比(bi),變頻恒壓供水可節能(neng)30%-60%。
(6)因為它能(neng)實現泵的軟停、軟啟動(dong)(dong),并能(neng)消(xiao)除水錘(chui)效應(水錘(chui)效應:直(zhi)接啟停時,液(ye)體(ti)動(dong)(dong)能(neng)急(ji)劇增加,對管(guan)網(wang)沖擊(ji)大,破(po)壞(huai)力(li)大)。
變頻恒壓供水系統在各類住宅小區、商業寫字樓、酒店、餐廳、商場、超市、地鐵、體育場館以及專門從事消防等需要供水項目中有著極為廣泛的應用價值。
由水(shui)(shui)(shui)泵變頻柜組成的(de)變頻恒壓供(gong)水(shui)(shui)(shui)系統以管網水(shui)(shui)(shui)壓(或(huo)用(yong)(yong)戶水(shui)(shui)(shui)流量)為設(she)(she)定(ding)參(can)數,通過微機控(kong)制輸(shu)出頻率(lv),自動調節泵電機轉速,實現管網水(shui)(shui)(shui)壓的(de)閉環調節(PID),使(shi)供(gong)水(shui)(shui)(shui)系統自動恒定(ding)穩定(ding)在設(she)(she)定(ding)壓力值:即用(yong)(yong)水(shui)(shui)(shui)量增(zeng)加時(shi)(shi),頻率(lv)增(zeng)加,泵速增(zeng)加,供(gong)水(shui)(shui)(shui)量相應增(zeng)加;用(yong)(yong)水(shui)(shui)(shui)量減(jian)少時(shi)(shi),頻率(lv)降(jiang)低(di),泵速減(jian)慢,供(gong)水(shui)(shui)(shui)量相應減(jian)少,從而保證供(gong)水(shui)(shui)(shui)效(xiao)率(lv)。滿足用(yong)(yong)戶對水(shui)(shui)(shui)壓和水(shui)(shui)(shui)量的(de)要(yao)求,同時(shi)(shi)達到(dao)提(ti)高(gao)供(gong)水(shui)(shui)(shui)質量和效(xiao)率(lv)的(de)目的(de)。該設(she)(she)備(bei)無需建造高(gao)位水(shui)(shui)(shui)箱(xiang)和水(shui)(shui)(shui)塔,水(shui)(shui)(shui)質無二次污染。是理想的(de)現代建筑給水(shui)(shui)(shui)設(she)(she)備(bei)。