廢(fei)水(shui)蒸(zheng)(zheng)發(fa)(fa)(fa)器(qi)是(shi)指針(zhen)對化(hua)工有(you)(you)機廢(fei)水(shui)高(gao)鹽(yan)分(fen)高(gao)濃(nong)度等特點,基于蒸(zheng)(zheng)發(fa)(fa)(fa)濃(nong)縮結晶的(de)原(yuan)理(li)采用多(duo)效減壓蒸(zheng)(zheng)發(fa)(fa)(fa)濃(nong)縮結晶有(you)(you)機廢(fei)水(shui),對濃(nong)縮液中的(de)鹽(yan)分(fen)進(jin)行(xing)分(fen)離后，通過集(ji)鹽(yan)器(qi)進(jin)行(xing)回收(shou)(shou),濃(nong)縮液進(jin)行(xing)干燥回收(shou)(shou)或焚燒處理(li),蒸(zheng)(zheng)發(fa)(fa)(fa)后的(de)冷凝水(shui)一(yi)般通過后續的(de)生化(hua)處理(li)進(jin)行(xing)處理(li)，可(ke)以(yi)實現廢(fei)水(shui)排(pai)放的(de)標準。

1.溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)的(de)(de)(de)熱穩定性(xing)對長時(shi)間受熱易(yi)分解、易(yi)聚合(he)以(yi)及易(yi)結(jie)(jie)垢的(de)(de)(de)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)時(shi)，應(ying)采(cai)(cai)用(yong)(yong)(yong)滯(zhi)料量少、停留時(shi)間短的(de)(de)(de)廢(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)器(qi)(qi)。2.有晶體析出(chu)的(de)(de)(de)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)對蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)時(shi)有晶體析出(chu)的(de)(de)(de)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)應(ying)采(cai)(cai)用(yong)(yong)(yong)外熱式廢(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)器(qi)(qi)或(huo)強制循(xun)環式廢(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)器(qi)(qi)。3.易(yi)發(fa)(fa)(fa)(fa)泡的(de)(de)(de)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)易(yi)發(fa)(fa)(fa)(fa)泡的(de)(de)(de)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)在蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)時(shi)會生成(cheng)大址層層重疊(die)、不易(yi)破滅(mie)的(de)(de)(de)泡沫(mo)，充滿(man)了整個(ge)分離(li)室(shi)后即隨(sui)二次蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)汽排出(chu)，不但損失物(wu)料，而且污(wu)染(ran)冷凝(ning)器(qi)(qi)。蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)這(zhe)(zhe)種(zhong)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)宜采(cai)(cai)用(yong)(yong)(yong)外熱式廢(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)器(qi)(qi)、強制循(xun)環式廢(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)器(qi)(qi)或(huo)升膜式廢(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)器(qi)(qi)。若將中(zhong)央循(xun)環管式廢(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)器(qi)(qi)和(he)懸筐(kuang)式廢(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)器(qi)(qi)的(de)(de)(de)分離(li)室(shi)選擇大一些，也(ye)可(ke)用(yong)(yong)(yong)于這(zhe)(zhe)種(zhong)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)的(de)(de)(de)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)。4.有腐(fu)蝕(shi)性(xing)的(de)(de)(de)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)腐(fu)蝕(shi)性(xing)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)時(shi)，加熱特應(ying)采(cai)(cai)用(yong)(yong)(yong)特殊材(cai)質制成(cheng)，或(huo)內壁襯以(yi)耐腐(fu)蝕(shi)材(cai)料。若溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)不怕污(wu)染(ran)，也(ye)可(ke)采(cai)(cai)用(yong)(yong)(yong)直接加熱廢(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)器(qi)(qi)。5.易(yi)結(jie)(jie)垢的(de)(de)(de)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)無論(lun)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)何種(zhong)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)，廢(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)器(qi)(qi)長久(jiu)使用(yong)(yong)(yong)后，傳熱表面上總會有污(wu)垢生成(cheng)。垢層的(de)(de)(de)熱導率小(xiao)，因(yin)此(ci)對易(yi)結(jie)(jie)垢的(de)(de)(de)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)，應(ying)考慮選擇便(bian)于清洗和(he)溶(rong)(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)循(xun)環速度大的(de)(de)(de)廢(fei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)(fa)器(qi)(qi)。

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