Q62DA-FG
Q62DA-FG
Q62DA-FG引言
水質(zhì)和水壓是現(xiàn)代供水企業(yè)賴以生存和發(fā)展的基本服務(wù)因素,在水質(zhì)穩(wěn)定的前提下,水壓的服務(wù)質(zhì)量和能耗是相互制約的兩個(gè)對(duì)立因素,更高的服務(wù)水壓意味更高的能耗,如何低能耗及滿足承諾服務(wù)水壓中找到一個(gè)平衡是現(xiàn)代供水企業(yè)密切關(guān)注及研究的一個(gè)課題。變頻技術(shù)的發(fā)展使憋閥門調(diào)壓成為歷史,而PID技術(shù)的發(fā)展實(shí)現(xiàn)恒壓供水向安全、節(jié)能及高品質(zhì)的方向?qū)崿F(xiàn)了飛躍。PID恒壓供水系統(tǒng)實(shí)現(xiàn)水泵電機(jī)無調(diào)速,依據(jù)用水量的變化自動(dòng)調(diào)節(jié)系統(tǒng)的運(yùn)行參數(shù),保持供水管道壓力恒定,它比傳統(tǒng)的憋閥門供水有較大的優(yōu)越性,是當(dāng)今、合理的節(jié)能型供水系統(tǒng)。
2PID恒壓供水系統(tǒng)介紹
在現(xiàn)代工業(yè)控制中,利用PLC實(shí)現(xiàn)對(duì)模擬量的PID閉環(huán)控制或者利用專用設(shè)備內(nèi)部PID控制(如變頻器內(nèi)部PID閉環(huán)控制)對(duì)監(jiān)測(cè)量的閉環(huán)控制是較為常用的PID控制方法。本文主要結(jié)合珠海市西部某水廠實(shí)際應(yīng)用為基礎(chǔ)陳述了基于變頻器PID控制在水廠恒壓供水系統(tǒng)中應(yīng)用。DELTA TAU PMAC VME 602705-107 VME CPU BOARD
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