The sulfur hexafluoride recovery and purification unit is used in the manufacturing plant of sulfur hexafluoride gas insulated electrical equipment, the operation and scientific research departments. Vacuumize various electrical equipment, fill electrical equipment with SF6 gas, recover SF6 gas from used or tested electrical equipment, and conduct purification treatment, compression and storage to storage tank. The recovery device is applicable to SF6 electrical appliances and GIS combined electrical appliances of various voltage levels.

This device is a sulfur hexafluoride recovery and purification device developed by the national * * * technology in accordance with the standard of Technical Conditions for Sulfur Hexafluoride Gas Recovery Device issued by the Ministry of Electric Power, with reference to the products of * * * brand. The device is composed of recovery system, inflation system, vacuum pumping system, purification system and storage system, and has the following main functions:

1. Measurement of sulfur hexafluoride recovery and purification machine, electrical equipment, storage tank, vacuum pumping and vacuum degree

2. Recovery of gas in electrical equipment

3. Dry and purify the recovered SF6 gas

4. SF6 electrical appliances are charged by sulfur hexafluoride recovery and purification unit

5. Compressed liquid storage of SF6 gas in electrical appliances

The selection of sulfur hexafluoride gas recovery unit is mainly based on the working pressure, flow and some special working requirements of the pneumatic system. When selecting the working pressure, considering the pressure loss along the way, the air source pressure should be increased by about 20% more than the * * * high pressure required by the working device in the pneumatic system. As for the working device with lower working pressure in the pneumatic system, the pressure reducing valve is used to reduce the pressure and supply air.

The content of the article comes from the recovery and purification of sulfur hexafluoride: http://www.feiliergas.com