產(chǎn)品介紹:A-B 1747-SN
1.調(diào)節(jié)閥儀表氣源壓力低或儀表空氣全部斷氣
當(dāng)發(fā)現(xiàn)多個自調(diào)系統(tǒng)失靈,監(jiān)控畫面上自調(diào)閥閥位在全開或全關(guān)位置,立即檢查儀表氣源壓力,若氣源壓力小于0.4MPa,則不正常,檢查氣源管道有無堵塞或 漏氣現(xiàn)象;若氣源壓力小于0.2MPa,立即進(jìn)行緊急停車。將監(jiān)控畫面上的自調(diào)系統(tǒng)全部打到手動,將調(diào)節(jié)閥閥位調(diào)到安全位置,通知儀表工檢查氣源,同時到 現(xiàn)場進(jìn)行操作,關(guān)閉調(diào)節(jié)閥兩端的截止閥,用旁路閥操作。
DCS發(fā)生故障時,操作工應(yīng)掌握一定的判別方法,及早發(fā)現(xiàn)問題,進(jìn)行適當(dāng)處理,可以避免或者減少對工藝控制的影響。
【主營】:PLC模塊,DCS卡件,ESD系統(tǒng)卡件,振動監(jiān)測系統(tǒng)卡件,汽輪機(jī)控制系統(tǒng)模塊。
A-B 1747-SN
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