换热器的腐蚀与防护

换热器由于腐蚀等原因,常常会产生内部泄漏,造成水质或产品污染,影响换热效果,严重威胁生产正常进行。本文介绍了换热器的主要腐蚀类型,指出孔蚀、应力腐蚀是破坏换热器的主要原因,并从设计、制造、操作、维修及水处理等方面探讨了防止换热器腐蚀的一些措施。

Corrosion and Protection of Heat Exchangers

Heat exchanger,due to corrosion and other reasons,often had an internal leak,would make water contamination or affect the effect of heat transfer,which seriously effected the normal production.The main corrosion type of heat exchanger were described and got pitting corrosion and stress corrosion were the main reason of heat exchanger destruction,From the design,manufacture,operation,maintenance and other aspects of water treatment,measures for preventing corrosion of heat exchanger were put forward.