How to deal with vacuum system pollution

Low vacuum equipment such as vacuum transport, vacuum impregnation, vacuum filtration, vacuum monotone, vacuum degassing (steel disposal) begged with high working pressure, large volume of low vacuum pump pumping
Gas unit, such as reciprocating vacuum pump, oil seal vacuum pump, water vapor radiating pump, water ring pump, roots pump, etc. Low vacuum pumping unit used
Still need basis to be pumped gas clean degree, humidity or other special beg, equipment is necessary dust remover, drab can wait for a part.
Water vapor in the process of condensation will condense into droplets, and mixed with the pump to form a suspension, not only will make the vacuum drop, but also can make the pump chamber and rotor rust, damage the sealing surface, so that the pump
Reduced ultimate vacuum. Therefore, it is important to avoid water vapor on the mechanical pump pollution. Ways to avoid it:
(1) choose oil seal mechanical pump with gas ballast equipment;
(2) oil loading separator, centrifugal separator or oil and water separator, will be mixed with water mechanical pump oil discontinuous disposal, disposal of oil into the pump for use;
(3) using a single agent with strong water absorption;
(4) the use of liquid nitrogen cold trap, not only can effectively adsorb water vapor, but also can inhibit the mechanical pump oil back flow to the high vacuum chamber.
Oil dispersion pump vacuum system pollution and prevention
The vacuum system of oil dispersion pump is the most widely used vacuum system, and its vacuum degree scale is 1.3 * 10-3 ~ 1.3 * 10-5 Pa. Oil dispersion pump vacuum system consists of various types of vacuum
Equipment, after a long time to use, the common defects are vacuum pumping up, or vacuum pumping the original limit vacuum level. Oil vapor pollution and vacuum process of vacuum chamber wall
Processes are related to the contamination of various pollutants by means of:
(1) clean the vacuum chamber regularly;
(2) periodically clean the oil seal mechanical vacuum pump and oil metal dispersion pump.
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