Measures for removing condensable gas from oil-sealed mechanical pump units
Sep 29, 2023| Measures for removing condensable gas from oil-sealed mechanical pump units
Oil-sealed mechanical pumps are not suitable for pumping gases containing large amounts of water vapor. Water vapor condenses into water droplets during the compression process, and mixes with the pump oil to form a suspension, destroying the pumping performance of the pump and reducing the vacuum of the pump. The general measures are: use an oil-sealed mechanical pump with a gas ballast device, and control the working temperature of the pump between 75 and 90 ° C to reduce the burden of the gas ballast valve; The water vapor separator or oil-water separation device is installed in the unit, and the mechanical pump oil mixed with water is treated, and the treated oil is then used in the pump; Use a variety of dry adsorbents to make trapping traps to absorb water vapor; The use of various condensers or cold traps can not only effectively adsorb water vapor, but also block the backflow of oil vapor from the mechanical pump to the vacuum chamber.
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