Sulfur hexafluoride electro-decomposition intermediate product extraction device and extraction method

Abstract

The invention belongs to the technical field of sulfur hexafluoride decomposition product extraction, and particularly relates to a sulfur hexafluoride electro-decomposition intermediate product extraction device. Aiming at the defect that an intermediate product in a sulfur hexafluoride decomposition process is difficult to reliably extract due to the fact that existing sulfur hexafluoride discharge test equipment simulates a real discharge working condition and the decomposition temperature is relatively high, the invention adopts the following technical scheme: the sulfur hexafluoride electro-decomposition intermediate product extraction device comprises: a closed pressure-resistant tank body; the vacuumizing device that is communicated with the tank body; the gas supply device that iscommunicated with the tank body and is used for conveying sulfur hexafluoride gas into the tank body; the first electrode and the second electrode that are arranged in the tank body; and the cooling device that is used for cooling the tank body. The invention has the beneficial effects that by additionally arranging the cooling device, the discharge temperature is reduced, and the reaction of theintermediate product can be inhibited compared with the normal temperature or higher temperature, so that the sulfur hexafluoride electro-decomposition intermediate product can be stored for a largeramount and longer time.

Description

technical field [0001] The invention belongs to the technical field of extraction of sulfur hexafluoride decomposition products, and in particular relates to an extraction device and an extraction method for an intermediate product of sulfur hexafluoride electrolysis. Background technique [0002] Gas-insulated metal-enclosed switchgear is metal-enclosed switchgear and control equipment that at least partly uses a gas above atmospheric pressure as the insulating medium. GIS (GAS INSULATED SWITCHGEAR) is the English abbreviation for gas insulated fully enclosed combined electrical appliances. GIS is composed of circuit breaker, isolating switch, grounding switch, transformer, lightning arrester, bus bar, connector and outlet terminal, etc. These devices or components are all enclosed in a metal grounding shell, and the inside is filled with a certain pressure of SF6 insulating gas , so it is also called SF6 fully enclosed combined electrical appliance. [0003] Sulfur hexaf...

AI Technical Summary

Problems solved by technology

However, the existing sulfur hexafluoride decomposition device simulates the actual discharge decomposition situation. Due to the high temperature in the tank, the intermediate products generated during the discharge process are prone to reactions with sulfur hexafluoride and intermediate products, resulting in ineffective Extract intermediate products

However, the final discharge product is affected by the randomness and non-reproducibility of the discharge process, and the randomness is relatively large, so it is difficult to obtain stable and reliable test results, so it cannot be used to verify the mechanism derivation of the electrolysis process of sulfur hexafluoride

[0004] In short, the existing sulfur hexafluoride discharge test equipment can only empirically record the decomposition conditions and the relationship between the products in the electrolysis process of sulfur hexafluoride

Images