液氨蒸發器存在哪兩種結構模式

火力發(fa)(fa)電(dian)(dian)(dian)(dian)廠中(zhong)(zhong)(zhong)(zhong)安裝使用的(de)(de)(de)(de)(de)煙(yan)氣(qi)(qi)(qi)SCR 脫硝處理(li)裝置(zhi)的(de)(de)(de)(de)(de)還原劑為氨(an)(an)(an)(an)氣(qi)(qi)(qi)，氨(an)(an)(an)(an)氣(qi)(qi)(qi)主要(yao)(yao)是通過液(ye)(ye)(ye)氨(an)(an)(an)(an)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)而(er)成(cheng)，目前主要(yao)(yao)采(cai)用液(ye)(ye)(ye)氨(an)(an)(an)(an)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)器(qi)存在(zai)(zai)兩種結(jie)構(gou)模式(shi)：一(yi)(yi)種采(cai)用蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)汽(qi)作(zuo)(zuo)為熱(re)(re)源(yuan)(yuan)，另一(yi)(yi)種采(cai)用電(dian)(dian)(dian)(dian)加(jia)熱(re)(re)作(zuo)(zuo)為熱(re)(re)源(yuan)(yuan)。第一(yi)(yi)種液(ye)(ye)(ye)氨(an)(an)(an)(an)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)器(qi)裝置(zhi)中(zhong)(zhong)(zhong)(zhong)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)汽(qi)經(jing)由(you)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)汽(qi)噴管(guan)直接噴入熱(re)(re)媒(mei)(mei)中(zhong)(zhong)(zhong)(zhong)，通過熱(re)(re)媒(mei)(mei)溫(wen)(wen)(wen)控(kong)制(zhi)單(dan)元(yuan)控(kong)制(zhi)溫(wen)(wen)(wen)度，液(ye)(ye)(ye)氨(an)(an)(an)(an)在(zai)(zai)氨(an)(an)(an)(an)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)管(guan)內(nei)(nei)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)成(cheng)氨(an)(an)(an)(an)氣(qi)(qi)(qi)，該裝置(zhi)一(yi)(yi)般只能利用低(di)壓(ya)(ya)飽和(he)(he)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)汽(qi)，其汽(qi)水(shui)混合時產生的(de)(de)(de)(de)(de)噪聲比(bi)較大(da)；在(zai)(zai)電(dian)(dian)(dian)(dian)廠的(de)(de)(de)(de)(de)實際應(ying)用中(zhong)(zhong)(zhong)(zhong)，電(dian)(dian)(dian)(dian)廠中(zhong)(zhong)(zhong)(zhong)基本(ben)沒有低(di)壓(ya)(ya)飽和(he)(he)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)汽(qi)，要(yao)(yao)額(e)外加(jia)裝一(yi)(yi)套減溫(wen)(wen)(wen)減壓(ya)(ya)裝置(zhi)將低(di)壓(ya)(ya)過熱(re)(re)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)汽(qi)轉變為低(di)壓(ya)(ya)飽和(he)(he)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)汽(qi)，投(tou)資費用高(gao)，而(er)且蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)出(chu)來(lai)的(de)(de)(de)(de)(de)氨(an)(an)(an)(an)氣(qi)(qi)(qi)一(yi)(yi)般壓(ya)(ya)力比(bi)較高(gao)，需要(yao)(yao)再經(jing)另外一(yi)(yi)套減壓(ya)(ya)裝置(zhi)對氨(an)(an)(an)(an)氣(qi)(qi)(qi)進行減壓(ya)(ya)以(yi)滿(man)足工藝要(yao)(yao)求(qiu)。另一(yi)(yi)種電(dian)(dian)(dian)(dian)加(jia)熱(re)(re)氨(an)(an)(an)(an)氣(qi)(qi)(qi)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)裝置(zhi)中(zhong)(zhong)(zhong)(zhong)，液(ye)(ye)(ye)氨(an)(an)(an)(an)經(jing)由(you)電(dian)(dian)(dian)(dian)加(jia)熱(re)(re)方式(shi)加(jia)熱(re)(re)殼體(ti)中(zhong)(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)熱(re)(re)媒(mei)(mei)，通過熱(re)(re)媒(mei)(mei)的(de)(de)(de)(de)(de)換熱(re)(re)將液(ye)(ye)(ye)氨(an)(an)(an)(an)受熱(re)(re)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)到(dao)工藝要(yao)(yao)求(qiu)溫(wen)(wen)(wen)度，加(jia)熱(re)(re)源(yuan)(yuan)為防爆電(dian)(dian)(dian)(dian)加(jia)熱(re)(re)器(qi)。通過溫(wen)(wen)(wen)度控(kong)制(zhi)單(dan)元(yuan)控(kong)制(zhi)殼體(ti)中(zhong)(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)熱(re)(re)媒(mei)(mei)在(zai)(zai)一(yi)(yi)定的(de)(de)(de)(de)(de)溫(wen)(wen)(wen)度范圍內(nei)(nei)，液(ye)(ye)(ye)氨(an)(an)(an)(an)在(zai)(zai)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)器(qi)發(fa)(fa)盤管(guan)內(nei)(nei)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)成(cheng)氨(an)(an)(an)(an)氣(qi)(qi)(qi)。

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  液氨蒸發器

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  蒸汽加熱水浴式液氨蒸發器