保護投退基本步驟

熱工保護投退步序注：一定保證保護投退記錄本有簽字，做好投退位置/內(nèi)容的記錄，最好在有人監(jiān)護情況下完成，完成后要進行復查確認。保護投退要避開“與AND”門、“小于”塊、“計算塊CALC”、“取反NOT”，盡量在“延時TON”，“脈沖TPULSE”或者“或OR”門解除，但是要注意是否取反（InvIn是否為Ture）。恢復保護一定確認此信號沒有發(fā)出再進行確認。以#2號機組為例：保護解除后還需從設備聯(lián)鎖關(guān)中進行確認，以保證保護退出無誤。MFT：2F04/02Software/4201_0001/20MFT_FST'：IN1~IN15通道確定對應通道直接刪除即可。#2機組MFT保護設有投退按鈕在“鍋爐”—“MFT保護投退監(jiān)視”—“MFT保護投退按鈕”，打開后直接操作。磨煤機：分為快停和緊停。以A磨為例快速停磨煤機保護名稱路徑解除內(nèi)容給煤機停延時120秒2F01/02Softwave/MILLA/4202_0004./#2'../#1.Out一次風量<20t/h2F01/02Softwave/MILLA/4202_0004./#5'../#4.Out磨輥軸承溫度高2F01/02Softwave/MILLA/4202_0006/20COALAMGTH'../#4.Out磨煤機油系統(tǒng)不正常2F01/02Softwave/MILLA/4202_0001/20PLVAOILABNM'../#18.Out相臨兩角火焰信號喪失2F01/02Softwave/MILLA/4202_0004./#8'../#7.Out磨煤機潤滑油泵停止2F01/02Softwave/MILLA/4202_0004./#11'20NLS2401_O.Out緊急停磨煤機保護名稱路徑解除內(nèi)容煤層無火延時10秒2F01/02Softwave/MILLA/4202_0004./#24'../#23.Out磨密封風/一次風差壓低2F01/02Softwave/MILLA/4202_0004./#25'20PdS1402.Out磨煤機風粉門已關(guān)2F01/02Softwave/MILLA/4202_0001/20PLVAOVCTED'../#22.Out磨煤機出口溫度高2F01/02Softwave/MILLA/4202_0002/20PLVAOTHH'../#11.Out磨煤機軸承溫度高2F01/02Softwave/MILLA/4202_0006/20COALABEARTH../#14.Out等離子能量失效延時10秒2F01/02Softwave/MILLA/4202_0004./#27'../#26.OutA磨首出在:2F01/02Softwave/MILLA/4202_0004，B磨首出在:2F01/02Softwave/MILLB/4202_0054，C磨首出在:2F02/02Softwave/MILLC/4202_0104,D磨首出在:2F02/02Softwave/MILLD/4202_0154，E磨首出在:2F03/02software/MILLE/4202_0204,3．送風機：保護名稱路徑解除內(nèi)容送風機A軸承溫度高二值2B01/02Software/AGSA/DK1-4301-0013./#12'20FDABEARINGTHH.Out送風機A電機軸承溫度高二值2B01/02Software/AGSA/DK1-4301-0013./#120FDAMOTBEARTHH.Out送風機A油站故障2B01/02Software/AGSA/DK1-4301-0011/20FDASTAFAIL'../#41.Out爐膛負壓高II值MFT2B01/02Software/AGSA/DK1-4301-0013./#16'../#15.Out引風機A停止2B01/02Software/AGSA/DK1-4301-0013./#17'20NLS4701_C.Out送風機A運行60S出口隔絕門未開2B01/02Software/AGSA/DK1-4301-0013./#20'../#19.Out空預器A停轉(zhuǎn)延時30秒2B01/02Software/AGSA/DK1-4301-0013./#22'../#21.OutA送：2B01/02Software/AGSA/DK1-4301-0013/20FDAFSTOUT'B送：2B02/02Software/AGSB/DK1-4301-0113/20FDBFSTOUT'引風機：保護名稱路徑解除內(nèi)容送風機全停停引風機A2B01/02Software/AGSA/DK1-4301-0033./#15'[2F04]20FD_ZT.Out引風機A電動機繞組溫度高二值2B01/02Software/AGSA/DK1-4301-0033./#21'20IDAMOTLOOPTHH.Out引風機A電動機軸承溫度高二值2B01/02Software/AGSA/DK1-4301-0033./#22'20IDAMOTBEARTHH.Out引風機A軸承溫度高二值2B01/02Software/AGSA/DK1-4301-0033./#23'20IDABEARINGHH.Out引風機A運行60S出入口門未開2B01/02Software/AGSA/DK1-4301-0033./#40'../#26.Out爐膛負壓低II值MFT2B01/02Software/AGSA/DK1-4301-0033./#29'../#28.Out空預器A停轉(zhuǎn)延時30秒2B01/02Software/AGSA/DK1-4301-0033./#35'../#34.OutA引：2B01/02Software/AGSA/DK1-4301-0033B引：2B02/02Software/AGSB/DK1-4301-0133一次風機：保護名稱路徑解除內(nèi)容空預器A停轉(zhuǎn)延時30秒2B01/02Software/AGSA/DK1-4301-0003./#10'../#9.Out一次風機A軸承溫度高二值2B01/02Software/AGSA/DK1-4301-0003./#11'20PAABEARINGTHH.Out一次風機A電機軸承溫度高二值2B01/02Software/AGSA/DK1-4301-0003./#12'20PAAMOTBEARTHH.Out一次風機A驅(qū)動端軸承振動大跳閘2B01/02Software/AGSA/DK1-4301-0003./#14'../#8.Y1一次風機A非驅(qū)動端軸承振動大跳閘2B01/02Software/AGSA/DK1-4301-0003./#15'../#8.Y2一次風機A運行60S出口擋板未開2B01/02Software/AGSA/DK1-4301-0003./#18'../#17.OutA一次風：2B01/02Software/AGSA/DK1-4301-0003/B一次風：2B02/02Software/AGSB/DK1-4301-0103/給水泵：保護名稱路徑解除內(nèi)容除氧器水位低低2T01/02Software/BFSPA/DK1-4302-0306./#8'../#7.Out入口流量<140t/h，再循環(huán)閥未開2T01/02Software/BFSPA/DK1-4302-0306./#10'../#9.Y2入口壓力<0.5MPa/2T01/02Software/BFSPA/DK1-4302-0306./#23'../#12.Out潤滑油壓力低低T01/02Software/BFSPA/DK1-4302-0302/20MDBFPA_PLL'../#8.Y1溫度不正常2T01/02Software/BFSPA/DK1-4302-0306./#15'20MDBFPATH.OutA泵：2T01/02Software/BFSPA/DK1-4302-0306B泵：2T02/02Software/BFSPB/DK1-4302-0314C泵：2T03/02Software/BFSPC/DK1-4302-0322燃油點火系統(tǒng)試運保護名稱路徑解除內(nèi)容AB油層允許20OABZSPMT強制為tureBC油層允許20OBCZSPMT強制為tureDE油層允許20ODEZSPMT強制為ture油系統(tǒng)正常20OOK強制為tureMFT解除后復位按鈕解除后，2F04/02Software/4201_0001/20MFT_FST的OprstOprst點tureOFT解除2F04/02Software/4201_0011/20OFT