IC693MDL240
IC693MDL240IC693MDL240
隨著自動(dòng)化水平的提高,DCS控制系統(tǒng)(集散控制系統(tǒng))逐漸代替了常規(guī)儀表,其優(yōu)越性已被廣大操作人員所接受。但發(fā)生故障時(shí),會(huì)造成裝置停車甚至事故,各種故障如何及早發(fā)現(xiàn)及恰當(dāng)處理就顯得非常重要。我公司合成氨工藝使用多套浙大中控JX-300XDCS進(jìn)行控制,控制穩(wěn)定可靠,針對(duì)存在的一些問題,根據(jù)多年維護(hù)經(jīng)驗(yàn),我們總結(jié)出了一套行之有效的故障判別及處理方法。
1、查看監(jiān)控畫面的數(shù)據(jù)
出現(xiàn)以下情況時(shí),說(shuō)明控制系統(tǒng)發(fā)生問題,應(yīng)立即通知微機(jī)維修人員維修,同時(shí)操作工到現(xiàn)場(chǎng)進(jìn)行處理。
(1) 經(jīng)常變化的數(shù)據(jù)長(zhǎng)時(shí)間不變,且?guī)讉€(gè)數(shù)據(jù)或所有數(shù)據(jù)都不變。
(2) 控制分組畫面中,手動(dòng)自動(dòng)無(wú)法切換,或手動(dòng)輸入數(shù)據(jù)后,一經(jīng)確認(rèn),又恢復(fù)為原來(lái)的數(shù)據(jù),修改不過(guò)來(lái)。
(3) 趨勢(shì)圖畫面中,幾條趨勢(shì)都為直線不變。
(4) 監(jiān)控畫面中,多個(gè)數(shù)據(jù)同時(shí)波動(dòng)較大。
【公 司】: 廈門泰尼電氣有限公司
【主 營(yíng)】: AB、GE、施耐德等各類PLC產(chǎn)品
【價(jià) 格】: 電議
【發(fā)布人】: 張亮
【電 話】: 18030028083
【所在地】: 福建 - 廈門
【座 機(jī)】: 0592-6809819
【來(lái) 源】: 供應(yīng)信息 > 電工、電氣 > PLC
【Q Q】: 2314094943
判斷波動(dòng)數(shù)據(jù)是否為工藝上相關(guān)參數(shù),若是相關(guān)參數(shù)則通知儀表及微機(jī)人員檢查,看是否某調(diào)節(jié)系統(tǒng)波動(dòng)引起相關(guān)參數(shù)變化,同時(shí)將相關(guān)調(diào)節(jié)系統(tǒng)打到手動(dòng)狀態(tài),必要時(shí)到現(xiàn)場(chǎng)進(jìn)行調(diào)節(jié)。如水溶液全循環(huán)裝置中,尿素合成塔壓力正常時(shí)為l9.67MPa,如果突然大范圍波動(dòng),此時(shí)勢(shì)必引起下游的中壓系統(tǒng)、低壓系統(tǒng)壓力波動(dòng),這種情況是由于幾個(gè)相關(guān)參數(shù)中某一參數(shù)波動(dòng)引起其他參數(shù)變化,并不是控制系統(tǒng)本身故障。
若波動(dòng)數(shù)據(jù)工藝上彼此并無(wú)直接影響,則可能為微機(jī)某卡件發(fā)生故障,立即將相關(guān)自調(diào)系統(tǒng)打到手動(dòng)調(diào)節(jié),必要時(shí)到現(xiàn)場(chǎng)進(jìn)行調(diào)節(jié),同時(shí),通知微機(jī)及儀表人員檢查。TEL PLATE, SHOWER, HTR ISOL IN MB3M10-203454-11
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