鍋爐冬季啟動初投減溫水時汽溫大幅度下降的原因

2018-04-12

由于冬季氣溫較低，在沒有投用減溫器前，減溫水管內(nèi)水不流動，隨著氣溫降低而降低，而鍋爐減溫水管道布置往往又較長，儲存了一定量的低溫水，若在此時投用減溫水．則低溫水將首先噴入，又因啟動初期蒸汽流量較小，而致使汽溫大幅度下降。同時還使減溫器噴嘴和端部溫度急劇下降，若長期反復(fù)如此，還會發(fā)生金屬疲勞，造成噴嘴脫落，聯(lián)箱裂紋，威脅設(shè)備安全。所以為防止以上情況發(fā)生，冬季啟動鍋爐初投減溫水時，要先開啟減溫水管疏水門放去冷水，還要在投用時緩慢開啟調(diào)節(jié)門，使減溫水量逐漸增大。

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精品丰满熟女一区二区三区,亚洲AV成人在线观看,狼友视频入口,久久久国产精品黄毛片

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