A diaphragm vacuum pump

A vacuum pump and diaphragm technology, applied in pumps, pump components, pump control, etc., can solve the problems of diaphragm vacuum pump diaphragm aging damage, diaphragm vacuum pump life reduction, liquid or water vapor entry, etc., to improve condensation effect and service life , Increase the effect of continuous running time
CN110685892BActive Publication Date: 2021-09-03广东福雪莱电气有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
广东福雪莱电气有限公司
Publication Date
2021-09-03

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Abstract

The invention belongs to the technical field of vacuum pumps, and specifically relates to a diaphragm vacuum pump, which includes a housing, a cylinder and a protection box; a cavity is opened inside the housing; a cylinder is fixedly connected to the upper surface of the cavity; The output shaft of the cylinder is fixedly connected with a moving column, and the lower surface of the moving column is fixedly connected with a diaphragm; the right side of the cavity is provided with a protective box; the invention effectively solves the problem of the diaphragm vacuum pump directly vacuuming the device. At the same time, it is easy to suck the liquid or water vapor in the device into the diaphragm vacuum pump. At the same time, if the device is at a high temperature, directly extracting the hot air in the device will easily cause problems such as damage to the internal diaphragm of the diaphragm vacuum pump; effectively improved The service life of the diaphragm vacuum pump.
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Description

technical field

[0001] The invention belongs to the technical field of vacuum pumps, in particular to a diaphragm vacuum pump. Background technique

[0002] Diaphragm vacuum pump, with advanced design, high working efficiency and long service life, is a replacement product integrating high technology. The supporting products of precision chromatographic instruments are also one of the necessary equipment for laboratories.

[0003] In the prior art, the diaphragm vacuum pump directly evacuates the device that needs to be vacuumed, and liquid or water vapor is prone to enter. At the same time, if the device is at a high temperature, the hot air in the device is directly extracted, which is likely to cause the internal membrane of the diaphragm vacuum pump If there is a corrosive liquid directly entering, it will corrode the diaphragm or seals in the diaphragm vacuum pump, resulting in reduced life or damage to the diaphragm vacuum pump. The current existing technology deals w...

Claims

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