不锈钢换热器一般采用不锈钢制成,具有较强的耐腐蚀性和氯化作用,但氯离子会腐蚀它。在我国的一些区域,氯离子具有很强的腐蚀性,曾经曾呈现过。氯离子腐蚀板式换热器。因而,规划人员在选择板式换热器时应留意,有必要采纳必定的措施,现在氯离子对板式换热器的腐蚀浓度还没有达到必定程度。一般认为,当氯离子达到200pm时,不宜运用一般极板。
解决不锈钢换热器板氯离子腐蚀问题有两种办法。一是降低一次、二次网介质中的氯离子浓度,使其保持在正常范围内,可以保护整板。但是,出资是巨大的和费事的。不锈钢转换膜换热器的出资比一般板式高10%,第二种方法更便宜。
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