The vacuum pump prevents oil leakage

What sealing requirements do vacuum pumps have to prevent oil leakage

People who have used water ring vacuum pump know that the sealing of the equipment is a very important part of the process of use, must not be careless. If the sealing is done well, the vacuum drop can be avoided during use. If the seal work is perfunctory, then at some time the equipment will have a failure problem, resulting in its damage, not normal use, affecting our work efficiency.

Under its working pressure, the vacuum pump should drain all the gas produced in the process of vacuum equipment in time. Correct combination of vacuum pumps. Because the vacuum pump has selective pumping, therefore, sometimes choose a pump can not meet the requirements of pumping, need several kinds of pump combination, complement each other to meet the requirements of pumping. For example, titanium sublimation pump has a high pumping speed on hydrogen, but cannot pump helium, while triode sputtering ion pump, (or diode asymmetric cathode sputtering ion pump) has a certain pumping speed on argon, the combination of the two will make the vacuum device get a better vacuum.

The vacuum pump can not work under atmospheric pressure, need pre-vacuum, some vacuum pump outlet pressure is lower than atmospheric pressure, the need for the front stage pump, so the need to combine the use of the pump. Oil pollution requirements for vacuum equipment. If the equipment is strictly oil-free, should choose a variety of oil-free pumps, such as: water ring pump, molecular sieve adsorption pump, sputtering ion pump, cryogenic pump. If the requirements are not strict, you can choose to have an oil pump, and some anti-oil pollution measures, such as cold trap, baffle, oil trap, etc., can also meet the requirements of clean vacuum.

The vacuum pump should be installed in a firm and solid place on the ground. Under the vacuum pump base should maintain the level of the foundation, the four corners of the base is recommended to cushion damping rubber or bolt pouring installation, to ensure the vacuum pump smooth operation, small vibration.

The connection pipe between the vacuum pump and the system should be sealed reliably. For small vacuum pumps, metal pipe can be used to connect the gasket with oil-resistant rubber. For small vacuum pumps, vacuum hose can be used to connect.

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