The analysis of the failure of the O-ring of the balance pump of the high-pressure boiler feed pump is the main cause of the pressure increase of the pump’s pressure in the high-pressure boiler feed pump.The treatment measures of the pump cover of the high-pressure boiler feed pump are introduced,which solves the high-The problem of the pressure rise in the balance chamber is a good solution to the leakage of the pump cover seal of the same type of high pressure boiler feed pump and the related problems.%高压锅炉给水泵平衡套O形密封圈失效是造成高压锅炉给水泵泵平衡腔压力升高的主要原因，介绍高压锅炉给水泵泵盖缺陷处理措施，较好地解决了高压锅炉给水泵平衡腔压力升高的问题，为一化二化同类型高压锅炉给水泵泵盖密封的泄漏处理及相关问题提供了很好的解决措施。
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