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pai guan ji xie ruo gan shi yong wei hu jing yan
Author(s): 
Pages: 47
Year: Issue:  5
Journal: Farm Machinery Using & Maintenance

Abstract: 1.巧法提起机井中的水泵 从机井中提起带底阀的离心式水泵,农机手感觉特别费力,这是因为吸水管内滞留了大量水,弄不好还会磨坏吸水胶管.为此,可以在停机前几分钟向机井里放下一根绳索,上端拴牢在水泵上,下端入水后须低于底阀35 cm以上.然后不断地试探提起绳索,当感到提拉绳索有明显的阻力时,说明绳索的下端已经吸入底阀内,绳索已经卡住了底阀.此时可以让水泵停止运转,等待几分钟,估计吸水管内的水已经漏出,然后提起吸水管及底阀,就比较轻松了.
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