管壳式换热器广泛应用于石油化工等装置,而管束内漏的风险却一直困扰着装置的长周期运行。针对循环水冷却器管束内漏,结合制造与修理及相关文献的案例,从设计、制造及使用等控制环节对固定管板式、浮头式及U形管式等管束的内漏进行了分析,为防止管束内漏的风险需要设计、制造及使用共同控制,并给出了合理的建议。 Shell and tube heat exchangers are widely used in petrochemical and other devices, and the risk of tube leakage has been plagued the long-term operation of the device. According to the cases of manufacturing and repairing and related literatures, the internal leakage of fixed tube plate, floating head and U-tube tube bundles was analyzed from the aspects of design, manufacture and use, and so on. The risk of preventing internal leakage of bundles requires the design, manufacture and use of common control and gives reasonable advice.