Through comparison testing of the surface of reflowing holes of the external-mix self-sucking pump, the best design is determined.

对外混式自吸泵的回流孔面积进行对比试验，确定最佳设计方案。

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The utility model relates to an internal mixed self-sucking pipeline pump, which belongs to the improved technical proposal of a mechanical self-sucking pump.

内混式自吸管道泵，属于机械自吸泵的改进技术方案。

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When the auxiliary sewer line stores the waste water, the waste water can be pumped into the water storage tank through the water suction pipe by the self-sucking pump.

当副下水管道储存有废水时，自吸泵可将废水经抽水管抽至储水箱内。

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By sucking 55-degree heat out of the ground and concentrating it, the heat pump is able to deliver 110-degree heat into the warm air ducts of a central heating system.

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