热媒循环泵机械密封失效及改进

Invalidation and improving on the mechanical seal of HTM circulation pump

对热媒循环泵机械密封失效的原因进行了分析,指出了原机械密封的缺陷,改进了摩擦副和辅助密封件材料,取得了良好的密封效果和经济效益。

Through analyzing the invalid reasons of the mechanical seal of HTM circulation pump, the defects of the orignal mechancal seal are pointed out, the material of rubbing pairs and supplementary seal was improved. Good seal results and economic benefits were obtained.