廢(fei)水(shui)蒸發(fa)(fa)(fa)器是(shi)指針對化工有機(ji)廢(fei)水(shui)高(gao)鹽(yan)(yan)分(fen)(fen)(fen)高(gao)濃(nong)度等特點,基于蒸發(fa)(fa)(fa)濃(nong)縮結(jie)晶的原(yuan)理采用多效(xiao)減壓(ya)蒸發(fa)(fa)(fa)濃(nong)縮結(jie)晶有機(ji)廢(fei)水(shui),對濃(nong)縮液中的鹽(yan)(yan)分(fen)(fen)(fen)進行(xing)(xing)分(fen)(fen)(fen)離后，通過(guo)集(ji)鹽(yan)(yan)器進行(xing)(xing)回收(shou),濃(nong)縮液進行(xing)(xing)干燥回收(shou)或(huo)焚燒(shao)處(chu)理,蒸發(fa)(fa)(fa)后的冷凝水(shui)一般通過(guo)后續的生化處(chu)理進行(xing)(xing)處(chu)理，可以實(shi)現廢(fei)水(shui)排放的標(biao)準。

1.溶(rong)(rong)(rong)(rong)液(ye)的(de)(de)(de)(de)(de)熱(re)穩定(ding)性(xing)(xing)對(dui)長(chang)時(shi)(shi)間受熱(re)易分(fen)解、易聚合以及易結垢的(de)(de)(de)(de)(de)溶(rong)(rong)(rong)(rong)液(ye)蒸(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)時(shi)(shi)，應(ying)采(cai)(cai)用(yong)(yong)滯料量(liang)少、停留時(shi)(shi)間短的(de)(de)(de)(de)(de)廢水(shui)蒸(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)器(qi)(qi)。2.有晶(jing)體(ti)析出(chu)的(de)(de)(de)(de)(de)溶(rong)(rong)(rong)(rong)液(ye)對(dui)蒸(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)時(shi)(shi)有晶(jing)體(ti)析出(chu)的(de)(de)(de)(de)(de)溶(rong)(rong)(rong)(rong)液(ye)應(ying)采(cai)(cai)用(yong)(yong)外熱(re)式(shi)(shi)廢水(shui)蒸(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)器(qi)(qi)或(huo)強制循(xun)(xun)環(huan)式(shi)(shi)廢水(shui)蒸(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)器(qi)(qi)。3.易發(fa)(fa)(fa)泡(pao)的(de)(de)(de)(de)(de)溶(rong)(rong)(rong)(rong)液(ye)易發(fa)(fa)(fa)泡(pao)的(de)(de)(de)(de)(de)溶(rong)(rong)(rong)(rong)液(ye)在蒸(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)時(shi)(shi)會生成大(da)址層(ceng)層(ceng)重疊(die)、不易破滅(mie)的(de)(de)(de)(de)(de)泡(pao)沫，充滿了整個分(fen)離(li)室后即(ji)隨(sui)二次蒸(zheng)(zheng)(zheng)(zheng)汽(qi)排出(chu)，不但損(sun)失(shi)物料，而且污(wu)(wu)(wu)染冷凝器(qi)(qi)。蒸(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)這種溶(rong)(rong)(rong)(rong)液(ye)宜采(cai)(cai)用(yong)(yong)外熱(re)式(shi)(shi)廢水(shui)蒸(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)器(qi)(qi)、強制循(xun)(xun)環(huan)式(shi)(shi)廢水(shui)蒸(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)器(qi)(qi)或(huo)升(sheng)膜式(shi)(shi)廢水(shui)蒸(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)器(qi)(qi)。若將中央循(xun)(xun)環(huan)管式(shi)(shi)廢水(shui)蒸(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)器(qi)(qi)和懸筐(kuang)式(shi)(shi)廢水(shui)蒸(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)器(qi)(qi)的(de)(de)(de)(de)(de)分(fen)離(li)室選擇大(da)一些，也可(ke)(ke)用(yong)(yong)于(yu)(yu)這種溶(rong)(rong)(rong)(rong)液(ye)的(de)(de)(de)(de)(de)蒸(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)。4.有腐蝕性(xing)(xing)的(de)(de)(de)(de)(de)溶(rong)(rong)(rong)(rong)液(ye)蒸(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)腐蝕性(xing)(xing)溶(rong)(rong)(rong)(rong)液(ye)時(shi)(shi)，加熱(re)特應(ying)采(cai)(cai)用(yong)(yong)特殊材(cai)質(zhi)制成，或(huo)內壁襯(chen)以耐腐蝕材(cai)料。若溶(rong)(rong)(rong)(rong)液(ye)不怕污(wu)(wu)(wu)染，也可(ke)(ke)采(cai)(cai)用(yong)(yong)直(zhi)接加熱(re)廢水(shui)蒸(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)器(qi)(qi)。5.易結垢的(de)(de)(de)(de)(de)溶(rong)(rong)(rong)(rong)液(ye)無論蒸(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)何種溶(rong)(rong)(rong)(rong)液(ye)，廢水(shui)蒸(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)器(qi)(qi)長(chang)久使(shi)用(yong)(yong)后，傳熱(re)表(biao)面上總會有污(wu)(wu)(wu)垢生成。垢層(ceng)的(de)(de)(de)(de)(de)熱(re)導率(lv)小，因此對(dui)易結垢的(de)(de)(de)(de)(de)溶(rong)(rong)(rong)(rong)液(ye)，應(ying)考慮(lv)選擇便于(yu)(yu)清(qing)洗(xi)和溶(rong)(rong)(rong)(rong)液(ye)循(xun)(xun)環(huan)速度大(da)的(de)(de)(de)(de)(de)廢水(shui)蒸(zheng)(zheng)(zheng)(zheng)發(fa)(fa)(fa)器(qi)(qi)。

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