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提出了一个新的观点 ,在油封机械真空泵中除了油锤现象产生的噪声外 ,同时存在着程度不同的汽蚀现象所引起的噪声 ,严重时还会造成汽蚀破坏 ,它取决于极限压力的高低、泵的大小和转速的高低。此外在滑阀真空泵中还存在着机械撞击噪声。提出了降低上述噪声的相应措施
A new viewpoint is put forward. In addition to the noise generated by the oil hammer in the oil seal mechanical vacuum pump, there is also the noise caused by the cavitation with different degrees. In severe cases, the cavitation damage will also occur. It depends on the ultimate pressure High and low, the size of the pump and the level of speed. In addition there is still mechanical shock noise in the slide valve vacuum pump. Proposed to reduce the noise of the corresponding measures