我厂生产的D型单吸多级离心水泵,经用户使用发现,各种规格的低级别多级泵普遍存在平衡系统故障率高的现象,主要是2～3级泵,起动后或根本无法正常工作,或运行很短时间即出现平衡室温度增高烫手,且伴有异常声响、电流增大功率超载等情况出现.对泵解体检查发现,铜平衡环已严重磨损,而对装配工 D-type single-suction multi-stage centrifugal pump manufactured by our factory, the user found that a variety of low-level multi-stage pump ubiquitous balance system failure rate is high, mainly 2 to 3 pump, start or simply can not Normal work, or run for a very short time that the balance room temperature increased hot, and accompanied by abnormal noise, the current increase in power overload and so on.Check the pump disintegration found that the copper balance ring has been severely worn, while the assembly workers