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本文介绍了一种新的自吸方法,选隙自吸法,以及这种自吸方法研制成功的ZCN6-17型自吸泵,它比国内现有的自吸方案具有结构简单、成本低廉、性能良好、重量较轻的优点。经实践,选隙自吸法及其工作原理,对大量已投入使用的单吸单级悬臂离心泵改制自吸泵,以及设计新型高效率自吸泵都有着很大的参考价值和实用价值。用有底阀的CN6-17型泵改制时,只需将0.3公斤自吸元件粘在原泵隔舌处,用4至5元即可改成自吸泵。该泵已于1980年三季度由省科委、省农机局等单位鉴定定型。
This paper introduces a new self-priming method, the self-priming method of gap selection, and the self-priming method developed ZCN6-17 self-priming pump, which has the advantages of simple structure, low cost, Good performance, light weight advantages. After practice, the self-priming method of gap-stripping and its working principle, it has a great reference value and practical value for a large number of self-priming pumps with single-suction single-stage cantilever centrifugal pumps that have been put into use, as well as designing new type high-efficiency self-priming pumps. CN6-17-type valve with bottomed valve restructuring, only 0.3 kg of self-priming components stuck in the original diaphragm at the tongue, with 4 to 5 yuan can be changed to self-priming pump. The pump has been in the third quarter of 1980 by the Provincial Science and Technology Commission, Provincial Agricultural Bureau and other units identified stereotypes.