SF6 Gas Recovery Equipment

• Recovery and Purification: Compresses SF6 gas into liquid storage through a compressor, while using a drying filter (with molecular sieve adsorbent) to remove moisture, oil, and impurities, ensuring purified gas humidity ≤60ppm (by weight).

• Vacuum Pumping: Dual-stage rotary vane vacuum pump achieves ultimate vacuum degree <10Pa, suitable for vacuum treatment of GIS combined electrical equipment.

• Filling and Storage: Supports liquid or gaseous filling, with storage tank capacities ranging from 0.05 to 2.0m³ (storage capacity 200-2000kg), designed pressure up to 3.8-5.0MPa.
  Core Technologies:

• Refrigeration Liquefaction Method: Uses R22 refrigerant to condense SF6 gas at low temperatures, enhancing recovery efficiency (final recovery pressure ≤1kPa).

• Oil-free Compression Technology: Employs semi-hermetic compressors or dual-stage single-action compressors to prevent oil contamination and ensure gas purity.