海水(shui)(shui)淡化的介質環境主要(yao)是(shi)脫(tuo)氣海水(shui)(shui)和新鮮海水(shui)(shui)，不(bu)(bu)銹鋼(gang)已成功用(yong)(yong)(yong)(yong)于(yu)(yu)海水(shui)(shui)淡化的泵、殼(ke)、軸、葉(xie)輪、桿件以及(ji)蒸發罐(guan)的分(fen)離器(qi)、脫(tuo)氣裝置等。傳熱管(guan)在海水(shui)(shui)淡化中起著十分(fen)重(zhong)要(yao)的作用(yong)(yong)(yong)(yong)。在多(duo)段沖(chong)洗裝置中10%的傳熱管(guan)用(yong)(yong)(yong)(yong)于(yu)(yu)放熱裝置，87%用(yong)(yong)(yong)(yong)于(yu)(yu)熱回收裝置、3%用(yong)(yong)(yong)(yong)于(yu)(yu)鹽水(shui)(shui)加(jia)熱器(qi)。當前能滿足上述三種傳熱管(guan)要(yao)求的不(bu)(bu)銹鋼(gang)是(shi)耐海水(shui)(shui)腐蝕的 Cr-Ni-Mn-Mo-N 不(bu)(bu)銹鋼(gang)，如 00Cr22Ni17Mo3NNb 和 00Cr22Ni13Mo5NNbV 。為了(le)增加(jia)傳熱效果(guo)，將(jiang)管(guan)制(zhi)成 0.25mm的薄(bo)壁管(guan)，為了(le)提高強度，將(jiang)光(guang)管(guan)制(zhi)成縱(zong)向波紋(wen)管(guan)。
