Gas purification method

Abstract

The invention relates to a purification method, in particular to a gas purification method. The gas purification method comprises the following steps: A, connecting a ventilation hole of a gas purification device with a gas chamber, and opening a self-sealing valve; S2, sucking gas: sucking to-be-purified gas from the gas chamber through a gas suction module; S3, judging: judging whether the to-be-purified gas is up to standard; executing a step S6 if the to-be-purified gas is up to standard; executing a step S4 if the to-be-purified gas is not up to standard yet; S4, purifying: purifying the to-be-purified gas sucked from the gas chamber by a purification module; S5, exhaling: filling the gas chamber with the purified gas by an exhalation module, and then executing a step S2; S6, ending. According to the gas purification method, the gas in the insulated gas chamber of a high-voltage switch gear can be purified through one ventilation hole under the condition that normal power utilization of a user is not affected; the method has great social benefit and economic benefit.

Description

technical field [0001] The invention relates to a purification method, in particular to a gas purification method. Background technique [0002] In recent years, gas insulated switchgear has been rapidly promoted and applied in my country, especially with the construction and transformation of urban power grids in my country, rail transit and large industrial and mining enterprises, etc. With new and higher requirements such as working conditions, the domestic demand for high-performance and high-quality inflatable cabinets is becoming stronger and stronger. [0003] In the above gas insulated switchgear, sulfur hexafluoride gas, nitrogen gas or mixed gas is often used as the insulating medium of the switchgear. Taking sulfur hexafluoride gas as an example, although it has good electrical insulation performance and excellent arc extinguishing performance, if it is not recovered and regenerated in the correct way, it will pollute the atmosphere. [0004] The reasons for the ...

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Problems solved by technology

[0006] In order to solve the technical problem of sulfur hexafluoride gas purification treatment in the existing gas insulated switchgear, the present invention proposes a method for purifying gas, which is carried out by using a gas purification device, and the gas purification device includes a ventilator for connecting the gas chamber The vent is provided with a self-sealing valve; it also includes a main ventilation circuit, an inhalation module, a purification module and an exhalation module; the vent is arranged at the head of the main ventilation circuit, and at the ends of the main ventilation circuit Connect the head end of the inhalation module and the end of the exhalation module, the end of the inhalation module is connected to the head end of the purification module, and the end of the purification module is connected to the head end of the exhalation module; the method for purifying gas includes Follow the steps below:

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