Explore the working principle of water ring vacuum pump

Water ring vacuum pump (water ring pump) is a rough vacuum pump, it is in the petroleum, chemical, machinery, mining, light industry, papermaking, power, metallurgy, medicine and food industries and municipal and agricultural In many processes such as vacuum filtration, vacuum feeding, vacuum degassing, vacuum evaporation, vacuum concentration and vacuum resurfacing, it has been widely used. At the same time, it has the advantages of pumping out flammable and explosive gas and can be extracted Dust and other functions, so its application is more and more widely. Following Xiaobian presented to you on the water ring vacuum pump working principle. The working principle of the water ring vacuum pump shown in Figure for the working principle of the water ring vacuum pump schematic, water ring pump is the impeller, pump body, suction exhaust plate, water in the pump body wall of the water ring, suction port, exhaust port , Auxiliary exhaust valve and other components. The impeller is eccentrically installed in the pump body, when the impeller rotates in the direction of the figure, the water entering the water ring vacuum pump body is thrown around by the impeller. Due to the centrifugal force, the water forms a shape similar to that of the pump cavity Thick closed water ring. The inner surface of the upper part of the water ring is just tangential to the impeller hub (eg section I-I) and the lower inner surface of the water ring is in direct contact with the top of the blade (in fact, the blade has a certain insertion depth within the water ring). At this point, a crescent-shaped space is formed between the impeller hub and the water ring, and this space is again divided into a number of small cavities equal to the number of blades by the impeller. If the upper part of the impeller 0 ° as a starting point, then the impeller 180 ° before rotation, the volume of the small chamber gradually from small to large (ie from the section Ⅰ-Ⅰ to Ⅱ-Ⅱ), the pressure continues to decrease, The suction port on the gas tray is communicated with each other. When the pressure in the small chamber is lower than the pressure in the container being pumped, according to the principle of gas pressure balance, the drawn gas is continuously drawn into the small chamber, process. When inhalation is completed and the suction port isolated from Ⅱ-Ⅱ to Ⅲ-Ⅲ cross-section, the volume of the small cavity is gradually reduced, the pressure continues to increase, this time in compression, when the compressed gas reaches the row in advance Gas pressure, exhaust from the auxiliary exhaust valve in advance. From sections III-III to I-I, the volume of the small chamber in communication with the exhaust port further reduces the pressure increase further, and when the pressure of the gas is greater than the discharge pressure, the compressed gas is exhausted from the exhaust port Discharge, in the continuous operation of the pump process, continue to inspiratory, compression, exhaust process, so as to achieve the purpose of continuous extraction. In summary, we can draw such a conclusion: Water ring vacuum pump is a varactor vacuum pump, which is through the pump chamber volume continuously suction, compression, exhaust process, so as to achieve the purpose of continuous extraction. Industry Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: Zeng Fenfen (QQ / WeChat:) http://beng.liuti.cn/ (Service Hotline:)

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