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本文对采用自动固定气阀（环状阀）的立式往复式真空泵真空度的影响因素进行了理论分析，并介绍了设计ＬＶＰ－１００型立式单缸双作用无油润滑往复式真空泵在提高真空度方面所采取的措施，以及在制造样机过程中为提高真空度所作的一些改进方法
In this paper, the factors that affect the vacuum degree of the vertical reciprocating vacuum pump with automatic fixed valve (ring valve) are theoretically analyzed, and the design of LVP-100 vertical single cylinder double-action oil-free reciprocating vacuum pump The degree of vacuum and the measures taken to improve the degree of vacuum in the manufacture of prototypes