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Corrosion resistant vacuum pump features
Corrosion resistant vacuum pump features
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Old 10-17-19, 12:31 AM   #1
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Default Corrosion resistant vacuum pump features

Corrosion resistant vacuum pump features

Vacuum pump is a kind of rotary variable volume gas delivery pump, including dry screw vacuum pump, water ring pump, reciprocating pump, slide valve pump, rotary vane pump, roots pump and diffusion pump. It has the characteristics of large pumping speed in a wide pressure range and is widely used in metallurgy, chemical industry, food, electronic coating and other industries.

In different environments, vacuum pump will inevitably be corroded. However, how to solve the problem of vacuum pump corrosion is generally to use high molecular ceramic polymer for wear-resistant and corrosion-resistant pre protection. The anti-corrosion diaphragm vacuum pump, which is made of polytetrafluoroethylene (PTFE) materials, is suitable for the treatment of corrosive gases in chemical, pharmaceutical, petrochemical and other industries, such as suction filtration, vacuum distillation, rotary evaporation, vacuum concentration, centrifugal concentration, solid phase extraction, etc.

When the impeller of the corrosion-resistant vacuum pump rotates against the market principle, the water is thrown around by the impeller. Due to the centrifugal force, the water forms a closed ring of approximately equal thickness, which is determined by the shape of the pump cavity. The inner surface of the lower part of the water ring is just tangent to the impeller box, and the inner surface of the upper part of the water ring is just in contact with the top of the blade (in fact, the blade has a certain insertion depth in the water ring). At this time, a crescent space is formed between the impeller shell and the inner interface of the water ring, and this space is divided into several small cavities equal to the number of blades by the impeller blades of the corrosion-resistant vacuum pump. If the lower 0 ℃ of the impeller of the corrosion-resistant vacuum pump is taken as the starting point, the volume of the small cavity will increase from small to large when the impeller is 180 ℃ before rotation, and it is connected with the suction port on the end face. At this time, the gas will be inhaled, and when the suction is finished, the small cavity will be isolated with the suction port. When the impeller continues to rotate, the small cavity will be reduced from large to small, so that the gas will be compressed. When the small cavity is connected with the exhaust port, the gas will be changed. Discharge the corrosion-resistant vacuum pump.

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