How to select a water ring vacuum pump

Zibo Bangcheng Pump Industry specializes in providing: maintenance and sales of various vacuum pumps such as water ring vacuum pumps, water ring vacuum pumps, water ring vacuum pumps, liquid ring vacuum, water circulation vacuum pumps, etc. 1. Determination of the type of water ring vacuum pump The type of water ring vacuum pump is mainly determined by the air volume, vacuum degree or exhaust pressure required for the work. When the water ring vacuum pump is working, you should pay attention to the following two aspects: 1. It is necessary to operate in the high efficiency area as much as possible, that is, in the degree area of critical vacuum. or critical exhaust pressure. 2. Avoid operating near maximum vacuum or maximum exhaust pressure. Operating in this area is not only extremely inefficient, but also unstable and prone to vibration andnoise. For vacuum pumps with a high degree of vacuum, cavitation often occurs when operating in this area. The obvious sign of this phenomenon is noise and vibration in the pump. Cavitation will damage the pump body, impeller and other parts, making the pump unable to work. Based on the above principles, when the vacuum degree or gas pressure required by the pump is not high, single-stage pumps can be selected first. If the vacuum degree or exhaust pressure is high, a single-stage pump often cannot meet the requirements, or the pump still needs to have a large air volume at a higher vacuum degree, this is i.e. the performance curve should be flatter. at a higher degree of vacuum, two-stage pumps can be used. If the vacuum degree needs to be greater than -710 mmHg, an atmospheric water ring pump or an e ring vacuum unitau Roots can be used as a suction device. If it is used only as a vacuum pump, it is best to choose a single-acting pump. Because the single-acting pump has a simple structure, is easy to manufacture and maintain, and has good cavitation resistance under high vacuum conditions. If it is used only as a compressor with a larger air volume, a double-acting pump is more suitable. Since the double-acting pump has a large air volume, small size and light weight, the radial force can be automatically balanced, the shaft is not prone to fatigue failure, and the pump has a long lifespan. 2. Select a vacuum pump based on the air volume required by the system. After initially selecting the pump type, the vacuum pump model should be selected based on the air volume required by the system. Regarding the selection of the speed of pPumping the vacuum pump and calculating the pumping time, please refer to: Vacuum calculation formula. Zibo Bangcheng Pump Industry