News Details

SF6 Gas Recovery and Purification Device

Used to separate air, CF4, low fluorides, and decomposition products from SF6. The separation system is based on the principle of high-pressure oil-free direct liquefaction, initially liquefying and filtering the regenerated SF6 gas, and then further liquefying and solidifying the gas/liquid mixture in the separator through a low-temperature cooling system. Nitrogen and other gases are slowly discharged through separation, while SF6 gas is liquefied and retained again. SF6 gas can be recovered and reused with a recovery rate exceeding 99%. The recovery and purification device is equipped with high-efficiency polymer filters, activated carbon filters, acidic substance filters, and particulate filters. The gas is filtered to the 0.1 micron level to remove dust and particulate matter. A specially designed full-function gas treatment station can be used in the production space of combined electrical appliance manufacturers. It can purify unqualified SF6 gas, freeze-treat it to meet national new gas standards, and refill the qualified SF6 gas into insulation

•Adopts imported oil-free compressor for SF6 gas recovery, refilling, purification, and liquefied storage. •Drying treatment system can filter out moisture, decomposition products, etc. from SF6 gas. •Specialized filtration technology can adsorb low fluorides in SF6 gas. •SF6 gas freezing, solidification, and re-purification technology can make the purity of recovered SF6 gas reach new gas standards. •The compressor is high-pressure, oil-free, and leak-free. •Can recover gas from more than two circuits, quickly extracting gas from the SF6 gas chamber. •Recovery and refilling use two independent systems to prevent cross-contamination between waste gas and purified recovered gas. •PLC automatic control system.

The recovery device is compact and full-featured, capable of completing all functions of a large SF6 recovery device, including gas recovery and drying, solidification, and purification.   

 The entire recovery device includes: vacuum pump, compressor, solidification and purification device, liquid nitrogen tank 160L, gas liquefaction coagulant, various filtration systems, purification device, storage system, and necessary valves and PLC automatic control components.    The purified gas should meet national standards.  See national standard "GB/T12002-1989"