Working Principle of Liquid Ring Vacuum Pump and Common Models

Liquid Ring Vacuum Pump is an eccentric rotor with multiple blades installed in the pump housing. When it rotates, it throws liquid (usually water and transformer oil) to the pump housing and forms a liquid ring concentric with the pump housing. The rotor blades form a rotary variable capacity vacuum pump with a periodic volume change. Water ring vacuum pump is the most common type of liquid ring vacuum pump.

Water ring vacuum pump is mainly used in the process of rough vacuum and large air extraction, and has been widely used in chemical, petroleum and light industry sectors. The advantages of this pump are: simple structure, easy manufacture, reliable work, convenient use, strong durability, and can pump corrosive gas, dust-containing gas and gas-water mixture. The temperature of the gas to be pumped is preferably 20°C to 40°C.

At present, the main models of domestic water ring pumps are SZ, SZB, SZH, SZZ and SZL, SK and 2BE.

1. SZ type water ring vacuum pump can be used to remove non-corrosive, water-insoluble, solid-free gas and air.

2. SZB type water ring vacuum pump is cantilever type. In addition to the same use of SZ type, it is especially suitable for large-scale water pump vacuum drainage. SZH type water ring vacuum pump is mainly used to remove air in order to obtain vacuum in a closed device. filter. When the SZH pump is working, it is not suitable to use water containing impurities as circulating water.

3. SZZ and SZL pumps are direct-coupled pumps, with the same application as S213.

2BE Liquid Ring Vacuum Pump

4. SK type water ring vacuum pump is a double-effect water ring vacuum pump with high efficiency. The working gas temperature is -10 ℃ ～ + 40 ℃. It is widely used in various industrial sectors for vacuum drying and vacuum dehydration, especially suitable for vacuum systems that require clean, oil-free vacuum systems, extraction processes with large amounts of water vapor overflow, and vacuum filtration in coal washing plants and ore dressing plants.

5. 2BE Liquid Ring Vacuum Pump is an energy-saving product developed by introducing German Siemens technology. Adopting single-stage single-acting structure, it has the advantages of simple structure, reliable operation, high efficiency and energy saving. Use is the same as SK type water ring vacuum pump.

In addition, the oil ring pump is also a type of liquid ring vacuum pump. The biggest difference between it and water ring pump is that the working fluid is replaced by transformer oil. Except for the different seals, the structure of the pump itself is not much different from the water ring pump. In order to enable the oil ring pump to work at a suitable temperature, the oil ring pump itself is provided with a cooling oil tank (also known as an oil and gas separator). If the pumped substance needs to be recovered, a liquid compatible with the pumped substance can be used as the working fluid of the pump, such as kerosene, styrene, ethylene glycol, etc.

The above are the common models of liquid ring vacuum pumps introduced by Liquid Ring Vacuum Pump Manufacturer. Hope to help you.