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当水泵从多泥沙水源抽水时,水泵效率下降,零部件损失加快,气蚀现象加重,为提高水泵效率,可采用如下措施。 一、引水口向下游布置。一方面可避免水草等杂物进入管道,泥沙含量也明显降低。 二、少用弯管。因为水流携沙在管弯处水头损失加大。流速降低,又可能使泥沙淤积管路。 三、及时换修零部件。口环在多泥沙水流运行时200～300小时就应更换。叶轮在泥沙磨损下容易发生气蚀现象,产生蜂窝状麻点,
When the pump is pumping water from a sediment source, the efficiency of the pump is reduced, the loss of parts is accelerated, and cavitation is aggravated. To improve the efficiency of the pump, the following measures can be taken. First, the water inlet to the downstream layout. On the one hand to avoid water and other debris into the pipeline, sediment content is also significantly reduced. Second, less use of elbow. Because the water carrying sand in the bend head loss increased. Decreased flow rate, but also may make sediment deposition pipeline. Third, timely repair parts. The mouth ring should be replaced when it is running for many silt water 200 to 300 hours. Impeller in the sediment prone to cavitation erosion phenomenon, resulting in cellular pitting,