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所蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)液(ye)(ye)(ye)(ye)體不(bu)同，對廢(fei)(fei)(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)器(qi)(qi)的(de)(de)要求也(ye)不(bu)同，一般為以下幾點(dian)：1.溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)的(de)(de)熱(re)(re)(re)穩(wen)定性(xing)對長時(shi)(shi)間(jian)(jian)受熱(re)(re)(re)易(yi)分(fen)(fen)解(jie)、易(yi)聚合以及易(yi)結垢的(de)(de)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)時(shi)(shi)，應(ying)(ying)(ying)采(cai)用(yong)滯料量少(shao)、停留時(shi)(shi)間(jian)(jian)短的(de)(de)廢(fei)(fei)(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)器(qi)(qi)。2.有(you)晶體析(xi)出的(de)(de)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)對蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)時(shi)(shi)有(you)晶體析(xi)出的(de)(de)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)應(ying)(ying)(ying)采(cai)用(yong)外熱(re)(re)(re)式(shi)(shi)(shi)(shi)廢(fei)(fei)(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)器(qi)(qi)或強制循(xun)環(huan)(huan)式(shi)(shi)(shi)(shi)廢(fei)(fei)(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)器(qi)(qi)。3.易(yi)發(fa)(fa)(fa)(fa)(fa)(fa)泡的(de)(de)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)易(yi)發(fa)(fa)(fa)(fa)(fa)(fa)泡的(de)(de)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)在蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)時(shi)(shi)會生成(cheng)大址層(ceng)層(ceng)重疊、不(bu)易(yi)破滅(mie)的(de)(de)泡沫，充滿(man)了(le)整個分(fen)(fen)離(li)(li)室(shi)后(hou)即隨二(er)次蒸(zheng)(zheng)(zheng)汽(qi)排出，不(bu)但損失物(wu)料，而(er)且污染(ran)冷凝器(qi)(qi)。蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)這種溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)宜(yi)采(cai)用(yong)外熱(re)(re)(re)式(shi)(shi)(shi)(shi)廢(fei)(fei)(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)器(qi)(qi)、強制循(xun)環(huan)(huan)式(shi)(shi)(shi)(shi)廢(fei)(fei)(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)器(qi)(qi)或升膜式(shi)(shi)(shi)(shi)廢(fei)(fei)(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)器(qi)(qi)。若將中央循(xun)環(huan)(huan)管式(shi)(shi)(shi)(shi)廢(fei)(fei)(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)器(qi)(qi)和(he)懸筐式(shi)(shi)(shi)(shi)廢(fei)(fei)(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)器(qi)(qi)的(de)(de)分(fen)(fen)離(li)(li)室(shi)選(xuan)擇大一些，也(ye)可用(yong)于這種溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)的(de)(de)蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)。4.有(you)腐蝕(shi)性(xing)的(de)(de)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)腐蝕(shi)性(xing)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)時(shi)(shi)，加(jia)熱(re)(re)(re)特應(ying)(ying)(ying)采(cai)用(yong)特殊材(cai)(cai)質(zhi)制成(cheng)，或內壁襯以耐(nai)腐蝕(shi)材(cai)(cai)料。若溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)不(bu)怕污染(ran)，也(ye)可采(cai)用(yong)直接加(jia)熱(re)(re)(re)廢(fei)(fei)(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)器(qi)(qi)。5.易(yi)結垢的(de)(de)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)無論(lun)蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)何種溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)，廢(fei)(fei)(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)器(qi)(qi)長久使用(yong)后(hou)，傳熱(re)(re)(re)表(biao)面(mian)上總會有(you)污垢生成(cheng)。垢層(ceng)的(de)(de)熱(re)(re)(re)導率小，因(yin)此對易(yi)結垢的(de)(de)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)，應(ying)(ying)(ying)考慮選(xuan)擇便于清(qing)洗和(he)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)循(xun)環(huan)(huan)速度大的(de)(de)廢(fei)(fei)(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)(fa)(fa)器(qi)(qi)。