【正文】
運(yùn)行時(shí)在供水出口產(chǎn)生的最大水壓力。鍵盤用于對(duì)壓力值的設(shè)定和泵組的切換,LCD1602液晶實(shí)時(shí)顯示設(shè)定的壓力值。變頻調(diào)速的恒壓供水系統(tǒng)組成框圖如下:圖21 變頻調(diào)速的恒壓供水系統(tǒng)組成框圖3 壓力采集原理壓力測(cè)量對(duì)實(shí)時(shí)監(jiān)測(cè)和安全生產(chǎn)具有重要的意義。關(guān)鍵詞:變頻 恒壓供水 單片機(jī) 壓力采集 Constant pressure water supply systemPANG Gang(Shaanxi University of Science amp。芯片轉(zhuǎn)換時(shí)間僅為32μS,據(jù)有雙數(shù)據(jù)輸出可作為數(shù)據(jù)校驗(yàn),以減少數(shù)據(jù)誤差,轉(zhuǎn)換速度快且穩(wěn)定性能強(qiáng)。圖4系統(tǒng)主程序流程首先系統(tǒng)進(jìn)行初始化。使線圈失電只需將單片機(jī)的引腳置為低電平,光電耦合器驅(qū)動(dòng)繼電器原理圖如圖3所示。變頻恒壓供水系統(tǒng)由變頻器、水泵、PLC以及壓力變送器等構(gòu)成閉環(huán)。 Technology, Academy of electronic information and electrical engineering ,ShanXi Xi’an 710021)Abstract:With the rapid development of social economy, the increasing of highrise residential quarters, the traditional water tank water supply mode cannot meet the highrise residential area of wa