Water ring vacuum pump advantages and disadvantages introduced

Water ring vacuum pump (water ring pump) is one of the pumps, which belongs to the ultimate vacuum it can get 2000 ~ 4000Pa, series of air ejectors up to 270 ~ 670Pa. Water ring Vacuum pump can also be used as a compressor, called the water ring compressor, is a low pressure compressor, the pressure range of 1 ~ 2 × 105Pa gauge pressure. Water ring vacuum pump has his unique features: compact structure, work balance and flow uniformity, chemical production is used to transport or pump flammable, explosive and corrosive gases. Water ring vacuum pump Impeller agitated liquid, loss of energy, so its efficiency is very low. Water ring vacuum pump advantages and disadvantages Introduction Advantages Simple structure, low manufacturing precision, easy processing. Compact structure, high pump speed, the general direct connection with the motor, without deceleration. Therefore, with a small structure size, you can get a large displacement, covers an area is small. Compressed gas is basically isothermal, that is, compressed gas process temperature changes very small. Since there is no metallic friction surface in the pump chamber, there is no need to lubricate the pump and the wear is minimal. The seal between the rotor and the retainer can be made directly from the water seal. Inspiratory uniform, stable and reliable, easy to operate, easy maintenance. Disadvantages of low efficiency, generally about 30%, preferably up to 50%. The vacuum is low, not only because of the structural limitations, but more importantly because of the saturated vapor pressure of the working fluid. Water for the working fluid, the ultimate pressure can only reach 2000 ~ 4000Pa. Working fluid for oil up to 130Pa. In short, due to the water ring pump gas compression isothermal, it can be extracted flammable and explosive gases. Because there is no exhaust valve and friction surface, it can be extracted with dust gas, condensable gas and water-air mixture. With these outstanding features, despite their inefficiencies, they are still widely used. (Editor: Shuangling) Further reading: 2016 Xiamen Industry Fair 2016 Beijing Petroleum Exhibition Pumps Valves Pipe Fittings Exhibition Information 2016 Exhibition Information 2016 China World Expo

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