Method for recycling liquid SF6 purification device

Abstract

The invention discloses a method of a liquid SF6 purification device for recovery, belongs to the technical field of SF6 purification treatment, and solves the problem that the existing device cannot ensure complete gasification of liquid SF6. The input end of the first air heat exchanger is connected with the first manual ball valve, the output end of the first air heat exchanger is connected with the first input end of the plate heat exchanger, the first output end of the plate heat exchanger is connected with one end of the first electric ball valve, and the other end of the first electric ball valve is connected with the input end of the multi-stage adsorption tower. The output end of the multi-stage adsorption tower is connected with one end of a second manual ball valve, the other end of the second manual ball valve is connected with the input end of a dust filter, the output end of the dust filter is connected with a fourth self-sealing connector, and a nitrogen circulation heating pipeline is connected between the second input end and the second output end of the plate heat exchanger. The first safety valve is mounted between the plate heat exchanger and the first electric ball valve; and liquid SF6 is completely gasified after being heated twice by the first air heat exchanger and the plate heat exchanger, so that the purification efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the substation SF 6 The technical field of purification treatment relates to a liquid SF used for recovery 6 A method of purifying a device. Background technique [0002] In recent years, with the rapid development of the global energy Internet, a large number of SF 6 Gas-insulated equipment is commonly used in ultra-high voltage, ultra-high voltage and fully enclosed combined electrical appliances. At the same time, with many SFs in our country 6 Growth in operating life of gas-insulated equipment and SF 6 / N 2 Mixed gas has gradually replaced SF 6 As the trend of insulating medium in electrical equipment, SF 6 The tasks of on-site recycling operations (mostly outdoor open-air operations) are increasing year by year. In order to facilitate transportation and storage, the recycled SF 6 Usually stored in liquid form in cylinders or gas tanks. SF 6 Due to the influence of various factors such as high-voltage electric fi...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to design a kind of liquid SF that is used for recovery 6 The method of purifying device, to solve existing purifying device can not guarantee liquid SF 6 The problem of low purification efficiency due to complete gasification

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