压力容器用膨胀节疲劳失效分析及对策

Expansion Joint for Pressure Vessels Fatigue Failure Analysis and Countermeasures

现有的部分钢制压力容器、钢制管壳式换热器用膨胀节出现的疲劳失效问题,对装置的正常运行产生了影响,存在的安全隐患也随即暴露出来。为结合贯彻集团公司换热器专题会议精神及要求,更好地解决这一问题,通过多方面综合考虑,对容器用膨胀节疲劳失效进行了原因分析,为膨胀节的改形、更换提供了一定的参考依据。

Part of the existing steel pressure vessels, steel tube shell type heat exchanger with expansion joint occurrence problem of the fatigue failure of the normal operation of the device, impact, hidden safety trouble immediately exposed. For the union to carry out group company heat exchanger special conference spirit and requirement, solve this one problem better, through many aspects considered, the vessel expansion joint fatigue failure causes are analyzed, for the expansion of the modification, replacement of some reference.