常见的故障部位有吸水口垫、出水口垫、叶轮盖垫，培修时应更替。
Common parts of a suction port failure pad, pad outlet, impeller cover pad, Peixiu should be replaced.
详细分析了风机内部流场情况，发现轮盖附近的流动分离现象使叶轮对流体的做功能力受到很大影响。
The analysis of the flow field indicates that the flow separation near shroud had more badly influence on performance of impeller.
双吸式叶轮是两边吸水，叶轮盖板呈对称状，一般大流量离心泵多数采用双吸式叶轮。
Double suction impeller is on both sides of the water, the impeller cover plate is symmetrical, the general flow of centrifugal pump double suction impeller.
应用推荐