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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(zhǎng)度，彎頭和附件等；

3. 防止長(zhǎng)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(duì)密封容器中加壓；

7. 對(duì)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.