Water ring vacuum pump (abbreviated as water ring pump) is one of the water pumps, belonging to the ultimate vacuum that it can obtain is 2000~4000Pa, and the serial atmospheric ejector can reach 270~670Pa. The water ring vacuum pump can also be used as the compression Machines, called water ring compressors, are low-pressure compressors with a pressure range of 1 to 2 x 105 Pa gauge pressure. The water ring vacuum pump has his unique features: compact structure, reliable working balance and uniform flow, and is mostly used in chemical production for conveying or pumping flammable, explosive and corrosive gases. The water ring type vacuum pump has low efficiency since the impeller stirs the liquid and loses much energy. Water ring vacuum pump work advantage The structure is simple, the manufacturing precision is not high, and it is easy to process. Compact structure, high rotation speed of the pump, generally can be directly connected with the motor, no need to reduce the speed. Therefore, with a small structure size, a large displacement can be obtained, and the footprint is also small. The compressed gas is essentially isothermal, ie the process temperature of the compressed gas changes very little. Because there is no metal friction surface in the pump chamber, it is not necessary to lubricate the pump and the wear is small. The seal between the rotating part and the fixing part can be done directly by the water seal. Inhale evenly, stable and reliable work, simple operation, easy maintenance. Shortcomings Low efficiency, generally around 30%, better up to 50%. The degree of vacuum is low, not only because of structural restrictions, but more importantly because of the saturated vapor pressure of the working fluid. With water as working fluid, the ultimate pressure can only reach 2000~4000Pa. Use oil as working fluid, up to 130Pa. In short, since the gas compression in the water ring pump is isothermal, flammable and explosive gases can be extracted. Because there is no exhaust valve and friction surface, dusty gases, condensable gases, and gas-water mixtures can be removed. With these outstanding characteristics, despite its low efficiency, it has been widely used. Related Links Detailed work principle of water ring vacuum pump (This article is edited and published by Asian Fluid Network. Please indicate the Asian fluid network. For business inquiries, please contact QQ. Editor: Huang Feini)
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