As early as the early 1990s,our country began to set up SF6 gas quality inspection center at all levels,which has achieved certain results and ensured the safe operation of electrical equipment.At the same time,sulfur hexafluoride recovery and purification treatment equipment industry has been formed,and now there are several enterprises in the market are committed to the development of the SF6 recovery and treatment market.The corresponding recovery and treatment technology is becoming mature,so that the work has better conditions.

　　However,the production and demand of sulfur hexafluoride recovery and purification units in China is only about 70 units per year.And it is a simple vacuum,inflatable device sales larger.

　　The reason is that,on the one hand,the price of sulfur hexafluoride recovery and purification device is expensive,between 150,000 and 300,000 yuan per unit,while the price of foreign imported equipment is higher,and the penetration rate of***.

　　On the other hand,because in addition to electrical manufacturing,the device utilization rate is low,generally only used for equipment installation or maintenance,idle time is long.Because the power sector of the high-voltage electrical appliance manufacturing industry uses a large amount of SF6 gas,the use and management is not very ideal.

　　However,in recent years,under the attention of the state,some domestic units have carried out some research and development of sulfur hexafluoride gas equipment and management methods,and some successful experiences have been obtained.