我厂输送炉灰用的旧灰渣泵,因密封部件失效,泄漏严重,污染了周围环境;泵流量明显下降,有时不得不开动两台泵或停泵检修,维护量也很大。动力密封泵是在以填料密封的旧泵基础上改进设计的。动力密封泵除在叶轮上增加副叶片外,还增加了副叶轮,把泵的后盖密 The old ash pump used for conveying ashes in our factory has serious leakage and serious leakage and pollutes the surrounding environment due to the failure of the sealing parts. The pump flow rate has obviously dropped, and sometimes two pumps have to be started or the pump stopped for maintenance. Power sealed pump is based on the old pump sealed with packing to improve the design. Power seal pump in addition to the impeller on the Deputy leaves, but also increased the Deputy impeller, the pump back cover close