Treatment device and treatment method for degrading sulfur hexafluoride based on dielectric barrier discharge

Abstract

The invention discloses a treatment device and a treatment method for degrading sulfur hexafluoride based on dielectric barrier discharge. The treatment device comprises a dielectric barrier dischargereactor, wherein a high-voltage electrode end of a high voltage source (11) is connected with an outer electrode of the dielectric barrier discharge reactor; a ground electrode end of the high voltage source is connected with a ground electrode connection post (9) of the dielectric barrier discharge reactor; a gas inlet joint (2) is arranged at one end of the dielectric barrier discharge reactor;a gas outlet joint (10) is arranged at the other end of the dielectric barrier discharge reactor and is connected with a tail gas absorption tank (12) through a pipeline. Through the treatment deviceand the treatment method, the technical problems that the treatment amount is extremely low, the degradation rate is low, the SF6 gas cannot be effectively degraded, and the degraded tail gas is noteffectively recycled when only sulfur hexafluoride gas is collected, purified, stored and decomposed in the prior art are solved.

Description

technical field [0001] The invention belongs to the sulfur hexafluoride degradation technology, in particular to a dielectric barrier discharge-based sulfur hexafluoride degradation treatment device and treatment method. Background technique [0002] Sulfur hexafluoride is widely used as an insulating dielectric material in various high-voltage electrical equipment due to its good electrical properties and excellent arc extinguishing performance. Furthermore, since SF 6 It is a colorless, odorless, non-toxic, non-flammable and non-corrosive inert gas. It is also widely used in metal smelting, semiconductor manufacturing, medical, chemical, atmospheric tracer and aerospace industries. But studies have shown that SF 6 The potential value of greenhouse effect (Global Warming Potential, GWP) is 23 900 times that of CO2, and SF 6 The degradation rate in the atmosphere is very slow, and it takes about 3200 years, so in the "Kyoto Protocol" signed in 1997, SF 6 Gas is listed as...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a dielectric barrier discharge-based sulfur hexafluoride degradation treatment device and treatment method to solve the existing treatment of collecting, purifying, storing and decomposing sulfur hexafluoride gas in the prior art The amount is very low, the degradation rate is low, the SF6 gas cannot be effectively degraded, and there are no technical problems such as effective recovery of the degraded tail gas.

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