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提高沙石泵氣蝕性能的辦法

1. 減小幾何吸上高度（或增加幾何倒灌高度）；

2. 減小吸入損失（管路損失），為此可以設(shè)法增加管徑，盡量減小管路長度，彎頭和附件等；

3. 防止長時(shí)間在大流量情況下運(yùn)行；

4. 降低介質(zhì)溫度（使液體飽和壓力降低）；

5. 泵發(fā)生汽蝕時(shí)，應(yīng)把流量調(diào)小或降速運(yùn)行；

6. 對密封容器中加壓；

7. 對于在苛刻條件下運(yùn)行的泵，為避免汽蝕破壞，可使用耐汽蝕材料。

8. Methods to improve the cavitation performance of sand and gravel pumps

9. Reduce the geometric suction height (or increase the geometric backflow height);

10. Reduce suction loss (pipeline loss) by increasing the pipe diameter and minimizing the length of the pipeline, elbows, and accessories as much as possible;

11. Prevent prolonged operation under high traffic conditions;

12. Reduce the temperature of the medium (to reduce the saturation pressure of the liquid);

13. When cavitation occurs in the pump, the flow should be reduced or the speed should be reduced for operation;

14. Pressurize the sealed container;

15. For pumps operating under harsh conditions, to avoid cavitation damage, corrosion-resistant materials can be used.