大容量鍋爐為什么要設(shè)置兩臺引風機或送風機？

??2022-08-02????????

對于容量較大的鍋爐，為了安全和在低負荷時節(jié)約風機耗電量，常設(shè)置兩臺引風機和送風機。當鍋爐負荷較低時，一套風機運行，另一套風機備用，當鍋爐負荷較高時，兩套風機全部投入運行。

由于備用風機入口的導向葉片一般都不嚴密，風機的出口無論是送風機還是引風機都是連接在一起的，而且運行風機出口是正壓，煙氣或空氣有可能從運行風機的出口經(jīng)備用風機的出口漏至備用風機的入口，煙氣或空氣反向流經(jīng)葉，所以造成備用風機反轉(zhuǎn)。反轉(zhuǎn)的速度決定于漏風量和運行風機出口風壓高低，漏風量大，運行風機出口風壓高，則備用風機反轉(zhuǎn)速度_快，反之則較慢。

上一篇：鍋爐運行中怎樣防止風機風機導葉脫落后掉入葉輪造成停爐？

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下一篇：裝有兩臺送風機或引風機的鍋爐，風機反轉(zhuǎn)怎樣啟動？

專題報道

專利余熱鍋爐設(shè)備全解析: 鄭鍋在余熱回收領(lǐng)域深耕三十余載，具有核心的技術(shù)競爭力，僅余熱鍋爐系列就擁有三十余項國家授權(quán)專利，是國內(nèi)余熱鍋爐行業(yè)首家三廢余熱鍋爐、碳素余熱鍋爐等爐型市場占有率達到70%以上的技術(shù)壟斷型企業(yè)。

鄭鍋蒸汽鍋爐專題: 鄭鍋蒸汽鍋爐——以科技賦能匠心之作。鄭鍋致力于工業(yè)鍋爐、電站鍋爐的研發(fā)、生產(chǎn)。旗下工業(yè)蒸汽鍋爐系列產(chǎn)品包括生物質(zhì)蒸汽鍋爐、燃氣蒸汽鍋爐、燃油蒸汽鍋爐、燃煤蒸汽鍋爐、余熱回收蒸汽鍋爐等產(chǎn)品，提供額定蒸發(fā)量2-410噸的蒸汽鍋爐產(chǎn)品，型號參數(shù)多樣，歡迎直接在線咨詢詳情！

鄭鍋熱水鍋爐專題: 鄭鍋熱水鍋爐——打造清潔供熱新模式。鄭鍋股份是中西部知名的供暖熱水鍋爐和工業(yè)熱水鍋爐生產(chǎn)廠家。旗下熱水鍋爐系列包括生物質(zhì)熱水鍋爐、燃煤熱水鍋爐以及燃油燃氣熱水鍋爐等產(chǎn)品，可提供額定熱功率1.4MW-168MW的熱水鍋爐產(chǎn)品，型號參數(shù)多樣，歡迎直接在線咨詢詳情！

鄭鍋股份

始于1945年的鄭鍋股份，由w66國際·利來廠改制而來，主營產(chǎn)品：煙氣余熱鍋爐、燃油燃氣鍋爐、生物質(zhì)鍋爐、燃煤鍋爐，鄭鍋股份擁有國家A級鍋爐制造許可證，是中國鍋爐行業(yè)的先鋒，也是迄今為止歷史悠久的傳統(tǒng)裝備制造企業(yè)之一。

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