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ZCN 6—17型自吸泵于1980年8月通过省级鉴定。该泵进出口管径为6英寸,效率达82%,又能实现自吸(4分/5米),是一种较好的农用自吸泵。 ZCN 6—17型自吸泵与普通单级单吸悬臂式离心泵的结构基本相同,容易制造。自吸泵与普通离心泵的区别在于泵体隔舌不同,自吸泵的隔舌带有槽形(见图1),且隔舌安放角取得较小,为12°～18°。为了获得较高的效率,又能自吸,隔舌部分特设计了槽形曲面,对间隙δ值进行了多因素优选,经大量试验,取
ZCN 6-17-type self-priming pump in August 1980 passed the provincial appraisal. The pump inlet and outlet diameter of 6 inches, the efficiency of 82%, but also to achieve self-absorption (4 points / 5 meters), is a better agricultural self-priming pump. ZCN 6-17 type self-priming pump and ordinary single-stage single-suction cantilever centrifugal pump structure is basically the same, easy to manufacture. Self-priming pump and ordinary centrifugal pump difference is that the pump body is different tongue, self-priming pump tongue with a groove (see Figure 1), and the tongue placement angle made smaller, 12 ° ~ 18 °. In order to obtain higher efficiency, but also self-priming tongue part specially designed groove-shaped surface, the value of the gap δ for a number of factors to optimize, after a large number of tests, take