SF6 gas recovery and filling device is an integrated recovery unit, consisting of a vacuum pumping system, compression system, purification system, storage system, and condensation system. The SF6 gas recovery, purification, and filling device is used in manufacturing plants of SF6 gas-insulated electrical equipment, as well as in operation, research, and other departments. It performs vacuum pumping on various electrical equipment, fills them with SF6 gas, recovers SF6 gas from used or tested electrical appliances, and simultaneously purifies, compresses, and stores it in storage tanks. The recovery device is suitable for SF6 electrical appliances of various voltage levels and GIS combined electrical appliances, etc.
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 standard JB/DQ2588-90 "SF6 Filling and Recovery Devices", and incorporating the advantages of world-renowned German brand DILO products, this SF6 gas recovery and filling device has been developed to better suit China's SF6 high-voltage switchgear industry.
- Chinese Name
- SF6气体回收充气装置
- Main Functions
- Recover gas from electrical equipment
- Device Composition
- The device consists of recovery system, storage system, etc.
- Nature
SF6 gas recovery and filling device is an integrated recovery unit, consisting of a vacuum pumping system, compression system, purification system, storage system, and condensation system. The SF6 gas recovery, purification, and filling device is used in manufacturing plants of SF6 gas-insulated electrical equipment, as well as in operation, research, and other departments. It performs vacuum pumping on various electrical equipment, fills them with SF6 gas, recovers SF6 gas from used or tested electrical appliances, and simultaneously purifies, compresses, and stores it in storage tanks. The recovery device is suitable for SF6 electrical appliances of various voltage levels and GIS combined electrical appliances, etc.
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 standard JB/DQ2588-90 "SF6 Filling and Recovery Devices", and incorporating the advantages of world-renowned German brand DILO products, this SF6 gas recovery and filling device has been developed to better suit China's SF6 high-voltage switchgear industry.
Device Composition
The device consists of a recovery system, filling system, vacuum pumping system, drying system, purification system, and storage system.
Main Functions
● Vacuum pumping and vacuum measurement of the device itself, electrical equipment, and storage tanks
● Recover gas from electrical equipment
● Dry and purify the recovered and refilled SF6 gas
● Fill SF6 gas into SF6 electrical appliances
● Compress and store SF6 gas from electrical appliances in liquid form
Device Features
● Adopts the design principle of cryogenic liquefaction, reducing the system's working pressure and greatly improving recovery efficiency.
● The refrigeration compressor can be optionally equipped with an original French imported fully hermetic refrigeration compressor. It can also be upgraded for free to a semi-hermetic refrigeration compressor produced by a wholly American-owned enterprise, Emerson-Copeland (performance far exceeds any original imported fully hermetic compressor of the same cooling capacity).
● The SF6 compressor is a semi-hermetic compressor produced by a wholly American-owned enterprise (Emerson-Copeland brand), applied to halogen gases such as SF6, with fluorine resistance and guaranteed leak-free operation.
● The vacuum pump can be optionally equipped with a Japanese Ulvac two-stage rotary vane vacuum pump or a German-origin Busch, or German-owned Leybold, etc.
● Dual-container system: SF6 can be liquefied and filled into cylinders, with a filling capacity of no less than 50kg. Single-container recovery devices have a cylinder filling capacity of no less than 30kg.
● The dual-container system features a unique SF6 vaporization method, using higher-temperature high-pressure SF6 gas to force low-temperature low-pressure liquid SF6 into cylinders, with short filling time and large filling capacity.
● A column-type liquid level gauge can be used, providing intuitive and accurate SF6 liquid level indication. The liquid level has backlight indication for clear visibility.
● The liquid storage container is equipped with a high-power SF6 vaporization electric heater. During use, automatic temperature control ensures full vaporization of SF6 for external filling.
● Excellent imported (American) oil mist filtration system ensures oil content meets standards. Compressor lubricating oil is guaranteed not to need replenishment within one year, and the oil level is ensured not to drop.
● The molecular sieve drying system is reliable. Regeneration of the molecular sieve does not require disassembly, dismantling, or replacement, and is easy to use. Simply perform self-regeneration operation on the molecular sieve dryer, and the drying performance is restored to its original state.
● All ball valves adopt the working principle of American Swagelok, with sealing elements having automatic compensation performance. They are practically applied to vacuum and pressure conditions, ensuring no leakage in both vacuum and pressure, making them dedicated ball valves for both vacuum and pressure use. (Original American Swagelok ball valves can also be selected.)
● Customized phase sequence protection device, with a withstand voltage of up to 500V, greatly improving reliability.
● Three-phase five-wire power supply, safer and more reliable.
● The flow chart can be optionally drawn on the panel for convenient and intuitive operation. All ball valves are used, with clear open and closed states.
● Adopts air-cooled, mobile design, usable in situations without a water source.
● The vacuum gauge is a digital display Pirani vacuum gauge.
● High-quality casters for easy movement without damaging the floor.
