A kind of sf6 inflatable device reducing the leakage rate of inflatable
An inflatable device, SF6 technology, applied in the direction of switchgear, electrical components, container filling methods, etc., can solve the problems of leakage, large greenhouse effect, atmospheric environmental pollution, etc., and achieve the effect of preventing gas backflow
Active Publication Date: 2015-08-19
STATE GRID CORP OF CHINA +1
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Problems solved by technology
However, the currently used gas pipeline to the connecting joint is prone to leakage
Since SF6 gas is an inert gas and has a huge greenhouse effect, if a certain amount of leakage occurs when SF6 electrical equipment is inflated, it will pollute the atmospheric environment
Method used
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Embodiment Construction
[0017] Such as figure 1 As shown, the SF6 inflation device mainly includes an SF6 bottle 1, a gas pipeline 2 and a joint 3.
[0018] The middle part of the gas pipeline 2 is provided with a U-shaped pipe 21, the first horizontal pipe section 22 is between the input end of the U-shaped pipe 21 and the SF6 bottle 1, and the output end of the U-shaped pipe 21 is connected to the input of the second horizontal pipe section 23. end, the first horizontal pipe section 22 and the second horizontal pipe section 23 are located on the same horizontal plane, the output end of the second horizontal pipe section 23 is connected to the input end of a vertical pipe section 24, and the output end of the vertical pipe section 24 is connected to the third horizontal pipe section 25 ; the height of the third horizontal pipe section 25 is lower than the height of the lowest point of the U-shaped pipe 21 .
[0019] The joint 3 is connected to the output end of the third horizontal pipe section 25 ...
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An SF6 aerating device capable of reducing the aeration leakage rate comprises an SF6 bottle, a gas pipeline, and a connector; and is characterized in that a U-shape pipe is arranged in the gas pipeline, the section between the input end of the U-shape pipe and the SF6 bottle is the first horizontal pipe section; the output end of the U-shape pipe is connected to the input end of a second horizontal pipe section, the first horizontal pipe section and the second horizontal pipe section are in the same plane; the output end of the second horizontal is connected to the input end of a vertical pipe section, the output end of the vertical pipe section is connected to a third horizontal pipe section; the height of the third horizontal pipe section is lower than that of the lowest point of the U-shape pipe, the connector is connected to the output end of the third horizontal pipe section; the connector comprises a shell and a gas channel arranged in the shell, a movable blocking ball is arranged in the gas channel, the diameter of the input end of the gas channel is less than that of the output end of the gas channel, the diameter of the movable blocking ball is larger than that of the input end of the gas channel, and a spring which can stretch out and draw back along the gas delivering direction is arranged between the movable blocking ball and the output end of the gas channel. The device can reduce the leakage during aeration process.
Description
technical field [0001] The invention relates to a device used for supplementing SF6 gas to electrical equipment in a substation. Background technique [0002] In various electrical equipment such as combined electrical appliances, circuit breakers, current transformers, and voltage transformers in the power system, SF6 gas is used as a gas with good chemical and thermal stability, and the number of SF6 gas-filled equipment continues to increase. At present, Sf6 electrical equipment is widely used in power system transmission and transformation projects, especially the wide application of fully enclosed combined electrical appliances, which reduces the project footprint and improves operational reliability. [0003] During the on-site installation work, a large amount of such equipment should be inflated, and the equipment needs to be frequently replenished with gas. When replenishing gas, the SF6 bottle on the gas supply side is connected to the gas pipeline, and the other ...
Claims
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IPC IPC(8): F17C5/00F17C13/00F17C13/04F17C13/06H02B3/00
Inventor 刘辉郭峰段晓明姜兆庆王钦汪先涛张勇张兴张震王昆仑
Owner STATE GRID CORP OF CHINA