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Charging system and method for insulating mixed gas

A technology of mixed gas and inflation system, which is applied in pipeline system, gas/liquid distribution and storage, mechanical equipment, etc. It can solve the problems of easy mixing of air moisture and low inflation efficiency, and achieve simple and practical inflation method and high engineering practical value Effect

Active Publication Date: 2017-01-04
WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST +3
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AI Technical Summary

Problems solved by technology

However, when studying the insulation properties of mixed gases at home and abroad, it is still used to fill SF first. 6 , and then fill in N 2 At this time, there are disadvantages such as low inflation efficiency and easy mixing of moisture in the air.

Method used

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  • Charging system and method for insulating mixed gas

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Embodiment Construction

[0027] The technical solutions of the present invention will be described below in conjunction with the accompanying drawings and embodiments.

[0028] Such as figure 1 As shown, an insulating mixed gas charging system according to the present invention includes a mixed gas charging device and a temperature and pressure monitoring device, and the mixed gas charging device includes a SF 6 Inflatable gas path 1, non-SF 6 Inflatable gas circuit 2, test chamber pipeline 3, vacuum bottle pipeline 4 and vacuum pump pipeline 5, of which SF 6 Inflatable gas path 1, non-SF 6 The inflatable air circuit 2, the test chamber pipe 3, and the vacuum bottle pipe 4 are connected to a common public pipe. Before inflating, the public pipe is evacuated before inflating. The temperature and pressure monitoring device includes a pressure gauge, which can monitor the temperature inside the test chamber. For temperature, pressure, density and other parameters, the pressure gauge is equipped with i...

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Abstract

The invention relates to the technical field of gas insulating materials of electrical equipment, in particular to a charging system and method for insulating mixed gas. The charging system comprises a mixed gas charging device and a temperature and pressure monitoring device. The mixed gas charging device comprises an SF6 charging gas circuit, a non-SF6 charging gas circuit, a test cavity pipeline, a vacuum bottle pipeline and a vacuum pump pipeline. The temperature and pressure monitoring device comprises a pressure gauge which is provided with an intelligent remote transmission component. The charging system can carry out charging, pressure adjustment and recovery treatment of mixed gas which has different pressure and different SF6 ratios and can also monitor the pressure, temperature and density of the mixed gas.

Description

technical field [0001] The invention relates to the technical field of gas insulating materials for electrical equipment, in particular to an insulating mixed gas inflating system and an inflating method. Background technique [0002] SF 6 As an insulation and arc extinguishing medium, it has been widely used in electrical equipment such as gas-insulated switchgear (GIS). However SF 6 The greenhouse effect coefficient (GWP) of CO 2 23900 times of , which means that every 1kg SF released into the atmosphere 6 The greenhouse effect caused by the gas is equivalent to the emission of 23.5t CO 2 gas; and SF 6 The gas is extremely difficult to degrade in the atmosphere, with a lifespan of about 3,200 years, and has a cumulative effect on global warming. In consideration of environmental protection, the parties to the United Nations Convention on Climate Change signed the "Kyoto Protocol" in 1997, and the SF 6 Listed as one of the 6 restricted greenhouse gases and required t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D1/04F17D3/01
CPCF17D1/04F17D3/01
Inventor 覃兆宇张潮海李永飞刘晓波郑宇周文俊杨帅
Owner WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
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