煙氣(flue gas)擋板門中用(yong)于入(ru)口的(de)擋板(ban)門(men)(men)，由于所要處理的(de)煙氣(qi)溫度（temperature)較高，因此多是使用(yong)碳鋼為主(zhu)要材質，而用(yong)于旁路的(de)煙氣(qi)擋板(ban)門(men)(men)使用(yong)的(de)材質多為不銹鋼(不銹耐酸鋼)和合金鋼。
煙(yan)氣(qi)擋(dang)板(Tailgate)門是(shi)用(yong)于連接鍋爐（Boilers）系(xi)(xi)統(tong)(tong)(system)和FGD系(xi)(xi)統(tong)(tong)的(de)(de)設(she)備(bei)，它對鍋爐系(xi)(xi)統(tong)(tong)和FGD系(xi)(xi)統(tong)(tong)的(de)(de)應用(yong)(application)都有著(zhu)極大的(de)(de)影(ying)響。煙(yan)氣(qi)擋(dang)板門在FGD系(xi)(xi)統(tong)(tong)中多作為FGD系(xi)(xi)統(tong)(tong)的(de)(de)入(ru)口擋(dang)板門、FGD系(xi)(xi)統(tong)(tong)出口擋(dang)板門及旁(pang)路擋(dang)板門。
脫(tuo)硫(liu)（產(chan)(chan)物:SO2)系(xi)(xi)統在正常運(yun)行（Windows）的狀態下，煙氣會從(cong)(cong)鍋(guo)爐（Boilers）尾部的除塵器經FGD系(xi)(xi)統的入(ru)口擋板(Tailgate)門(men)(men)(men)進(jin)入(ru)到升壓風機(Draught Fan)內，而(er)后(hou)煙氣在被(bei)換熱器降溫后(hou)進(jin)入(ru)吸收塔，脫(tuo)硫(liu)后(hou)的煙氣會被(bei)煙氣換熱器再加熱（heating ）到大約80℃，最后(hou)經過FGD系(xi)(xi)統的出(chu)口煙氣擋板門(men)(men)(men)進(jin)入(ru)到煙囪，被(bei)排放入(ru)大氣（dàqì）。擋板門(men)(men)(men)生產(chan)(chan)廠(chang)家始建(jian)于(yu)1980年(nian),專門(men)(men)(men)從(cong)(cong)事電力(li)輔機的開發(fa)和生產(chan)(chan),廠(chang)現有(you)職工(gong)300余人(ren),固定資產(chan)(chan)5000萬(wan)(wan)元，廠(chang)房面(mian)積近3萬(wan)(wan)平方米，技術(shu)人(ren)員(yuan)占(zhan)全廠(chang)職工(gong)30％以(yi)上，技術(shu)力(li)量雄厚(hou)，生產(chan)(chan)工(gong)藝精湛，設備先進(jin)，各項檢測手(shou)段齊全，年(nian)產(chan)(chan)值9000余萬(wan)(wan)元，具有(you)擴大生產(chan)(chan)和發(fa)展高新技術(shu)產(chan)(chan)業的潛力(li)。
1、入口擋板(Tailgate)門
入(ru)口擋(dang)板(ban)(ban)門(men)(men)(men)也(ye)被稱為(wei)是原煙氣(qi)(flue gas)擋(dang)板(ban)(ban)門(men)(men)(men)，它是設置(set up)在鍋(guo)爐（Boilers）系(xi)統(tong)(tong)(tong)(system)和脫硫(liu)（產物:SO2)系(xi)統(tong)(tong)(tong)之(zhi)間(jian)的煙氣(qi)擋(dang)板(ban)(ban)門(men)(men)(men)。冷熱風隔絕門(men)(men)(men)開啟靈活(huo)可靠，在應急或事(shi)故狀(zhuang)態下整個門(men)(men)(men)開啟控制在50秒以內。擋(dang)板(ban)(ban)門(men)(men)(men)是用(yong)于(yu)脫硫(liu)瑣細煙道密封、啟閉(bi)的牽(qian)制安排。入(ru)口擋(dang)板(ban)(ban)門(men)(men)(men)的作(zuo)用(yong)（role）是開啟脫硫(liu)系(xi)統(tong)(tong)(tong)將(jiang)煙氣(qi)引入(ru)FGD系(xi)統(tong)(tong)(tong)，和關(guan)閉(bi)脫硫(liu)系(xi)統(tong)(tong)(tong)并防止煙氣(qi)滲入(ru)和滲出FGD系(xi)統(tong)(tong)(tong)。
2、出口擋板門(men)
脫硫（產物(wu):SO2)系統(tong)(system)的(de)煙(yan)(yan)道最(zui)終和煙(yan)(yan)囪相連，出(chu)口擋板(Tailgate)門的(de)作用(yong)（role）是控制煙(yan)(yan)道是否向煙(yan)(yan)囪開(kai)放，并防止煙(yan)(yan)氣滲(shen)出(chu)煙(yan)(yan)道。
3、旁(pang)路擋板(ban)門(men)
脫(tuo)硫（產物:SO2)系(xi)統內設有旁路煙(yan)道，煙(yan)道內安裝(zhuang)有旁路煙(yan)氣(qi)(flue gas)擋(dang)板(Tailgate)門，它們的作用是(shi)在(zai)FGD系(xi)統巡查、維修(wéi xiu)或發生異常狀態(tai)時，為煙(yan)氣(qi)提供旁路通道進入煙(yan)囪，以保證脫(tuo)硫系(xi)統的安全。脫(tuo)硫系(xi)統的旁路煙(yan)道的開啟和關閉都是(shi)靠煙(yan)氣(qi)擋(dang)板門來實(shi)現的。
|
