WDQH-60 device is an integrated recovery device, including vacuum system and compression system, purification system, storage system and condensation system. The SF6 gas recovery and purification inflatable device is used in the manufacture of SF6 gas insulated electrical equipment. It uses the operation and scientific research departments to evacuate various electrical equipment, charge the electrical equipment with SF6 gas, and recover it from the electrical equipment used or tested. SF6 gas is purified, compressed and stored in a storage tank at the same time. The recovery device is suitable for SF6 electrical appliances and GIS combined electrical appliances of various voltage levels.
The device consists of a recovery system, an inflation system, a vacuum system, a purification system, and a storage system. The main functional parts of the device are compressors, vacuum pumps, refrigeration systems, dry filter regenerators, heaters, purifiers, filters, pipes, valves, instruments, electrical controls and structural parts, frame panels, running wheels and storage tanks.
1. Form: mobile, air-cooled
2. Working principle
1) Use a compressor to condense and liquefy SF6 gas at high pressure.
2) Auxiliary gas recovery and backfilling of heat exchangers
3) Buffered when inflated - gas inflated
3. Main performance and technical parameters
1) The ultimate vacuum degree of the device is ≤133Pa (special requirements can be ≤5Pa)
2) The vacuum pumping rate of the device is 55m³/h
3) The initial inflation pressure of the device is less than 133Pa (customized by the user)
4) The final inflation pressure of the device is less than or equal to 0.8MPa
5) The inflation rate of the device is more than 6m³/h
6) The initial recovery pressure of the device is less than or equal to 0.8M Pa
7) The final recovery pressure of the device is less than 1K Pa (standard is ≤0.05MP or higher ≤10×133Pa)
8) The recovery compressor rate of the device is 14.7m³/h
9) The annual leakage rate of the device is less than 1%
10) The maximum design pressure of the storage tank of the device is 4.0MPa (special requirements can be customized)
11) Storage tank volume 200L (200Kg)
12) Storage method: liquid at room temperature
13) Noise≤75dB sound pressure level
14) Dry filtration regeneration method: vacuum regeneration heating activation treatment
15) Power supply: AC three-phase 380V±10%, 50Hz
16) The total power of the device is less than 3KW
17) Device weight: 400kg
18) After one recovery, the gas humidity is 80PPM (50kg is one treatment)
19) Oil control: <8PPM, dust control: particle size <1UM (micron)
20) The device runs continuously without failure for > 1000 hours, and the cumulative failure-free operation > 5000 hours
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