This device is used in manufacturing plants of SF6 gas-insulated electrical equipment, as well as in operation, research and other departments. It is used for vacuuming various electrical equipment, filling SF6 gas into electrical equipment, recovering SF6 gas from electrical equipment in use or under test, and simultaneously purifying, compressing, and storing it in storage tanks.
Our company, referring to the power industry standard DL/T 662-1999 "Technical Conditions for SF6 Gas Recovery Devices" and the former Ministry of Machinery and Electronics JB/DQ2588-90 "SF6 Gas Filling and Recovery Devices" standard, and referencing the advantages of the world's top brand German DILO products, has independently developed a more cost-effective SF6 gas recovery and filling device, which is more suitable for the *** SF6 high-voltage switchgear industry. The device consists of a recovery system, filling system, vacuum system, drying system, purification system, and storage system, with the following main functions:
1. Vacuuming the device itself, electrical equipment, and storage tanks, and measuring the vacuum degree
2. Recovering gas from electrical equipment
3. Drying and purifying the recovered and refilled SF6 gas
4. Filling SF6 gas into SF6 electrical equipment
5. Compressing and storing SF6 gas in liquid form from electrical equipment
II. Technical Requirements
Main features of the product:
1. Adopts the system principle of German DILO company, with advanced design, complete functions, reasonable structure, and simple and clear operation.
2. The compression system introduces a two-stage single-acting compressor with foreign compression technology, which can directly compress SF6 gas into liquid state for storage in SF6 storage tanks (or use auxiliary refrigeration for compression storage), achieving oil-free rapid recovery of SF6 gas.
3. The vacuum system uses a two-stage rotary vane vacuum pump with fast vacuum rate, and is equipped with an oil return prevention device in the system.
4. The recovery and pressurization system uses a single-stage rotary vane pump (diaphragm pump) with low residual pressure and fast speed.
5. The purification system adopts the filter principle of American Pionair company. The filter is enhanced with built-in vacuum electric heating and built-in *** adsorbent, making the purification effect more significant (no need for frequent replacement of adsorbent).
6. The electrical system of the device automatically confirms and adjusts the three-phase power supply.
7. The control system of the device uses SF6-specific valves with *** patented technology, which are more reliable than similar foreign ball valves.
8. The storage system can be equipped with storage tanks of various specifications and capacities according to user requirements.
9. The equipment is air-cooled and mobile, and can be used without external water source.
Note: This factory can customize various configurations of recovery devices according to user special requirements.
