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Degassing membrane tube assembly and online monitoring device for gas in oil of vacuum on-load tap-changer

A monitoring device and tube assembly technology, which is applied to measuring devices, measuring device casings, components of electrical measuring instruments, etc., can solve the problems of high price, complex structure, large oil consumption, etc., and achieves good results and low fuel consumption. , the effect of low cost

Pending Publication Date: 2022-05-03
STATE GRID HUBEI ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of equipment is relatively large in volume, large in oil consumption, complex in structure and expensive in price, and is not suitable for on-line monitoring of vacuum on-load tap-changers

Method used

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  • Degassing membrane tube assembly and online monitoring device for gas in oil of vacuum on-load tap-changer
  • Degassing membrane tube assembly and online monitoring device for gas in oil of vacuum on-load tap-changer
  • Degassing membrane tube assembly and online monitoring device for gas in oil of vacuum on-load tap-changer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 As shown, the degassing membrane tube assembly provided by the present invention includes an oil inlet 201 and an oil outlet 202 arranged at both ends, and an oil-gas separation membrane tube 210 and a casing are arranged between the oil inlet 201 and the oil outlet 202. The outer shell 207 of the oil-gas separation membrane tube 210 is connected with an air inlet 203 and an air outlet 204 on the outer wall of the outer shell 207 through threads.

[0041] Moreover, the cavity formed by the oil inlet 201, the oil outlet 202 and the oil-gas separation membrane tube 210 constitutes the oil chamber 206 through which the insulating oil flows, and a certain gap is preset between the oil-gas separation membrane tube 210 and the casing 207 to form an air gap. chamber 208 , so that the gas separated from the insulating oil through the oil-gas separation membrane tube 210 can be exported, and the separated gas is discharged through the gas outlet 204 .

[0042] ...

Embodiment 2

[0070] Depend on Figure 3 to Figure 10 Given, the present invention also provides a vacuum on-load tap changer oil gas online monitoring device provided with the aforementioned degassing membrane tube assembly, the device includes an online monitoring housing 1, an oil inlet pipe 2, and a gas monitoring device body 3 , the oil storage tank body 4 and the oil diffuser net 15, the aforementioned degassing film tube assembly is arranged at the front end of the oil inlet pipe 2, so as to carry out online preliminary degassing treatment to the insulating oil.

[0071] The specific structure of the device is set as follows: one end of the oil inlet pipe 2 runs through the inner wall of one side of the on-line monitoring housing 1, the gas monitoring equipment body 3 is located on the top inner wall of the on-line monitoring housing 1, and the oil storage tank body 4 is located on the on-line monitoring housing 1 Inside, the oil dispersing net 15 is set on the top of the oil storage...

Embodiment 3

[0074] On the basis of embodiment one, by Figure 9 , Figure 10Given, the stabilizing mechanism includes a fixed plate 19 arranged on one side of the tooth plate 11, one side of the fixed plate 19 is connected with the inner wall of the online monitoring housing 1 through two support columns 20, and one side of the fixed plate 19 is provided with a chute 21. The side of the tooth plate 11 close to the fixed plate 19 is fixedly connected with a slider 22. The slider 22 is located in the chute 21. The cross sections of the chute 21 and the slider 22 are both T-shaped structures. When the tooth plate 11 moves up and down , the slider 22 slides in the chute 21, through the cooperation of the chute 21 and the slider 22, the tooth plate 11 moves up and down smoothly, avoiding the tooth plate 11 from tilting and shaking when moving up and down.

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Abstract

The invention relates to the technical field of power equipment monitoring, and particularly discloses a degassing membrane tube assembly and an on-line monitoring device for gas in vacuum on-load tap-changer oil, the degassing membrane tube assembly comprises an on-line monitoring shell, an oil inlet pipe, a gas monitoring equipment body, an oil storage tank body and an oil dispersing net, one end of the oil inlet pipe penetrates through the inner wall of one side of the on-line monitoring shell, and the other end of the oil inlet pipe penetrates through the inner wall of the other side of the on-line monitoring shell; the gas monitoring equipment body is located on the inner wall of the top of the on-line monitoring shell, and the front section of an oil inlet pipe of the device is provided with a degassing film pipe assembly used for conducting on-line preliminary degassing treatment on insulating oil. According to the device, the removal rate of gas in the insulating oil can be increased in a short time through the arranged degassing membrane tube assembly, and various gases in the insulating oil can be degassed.

Description

technical field [0001] The invention belongs to the technical field of electric equipment monitoring, in particular to an online monitoring device for gas in oil of a vacuum on-load tap changer based on membrane degassing. Background technique [0002] As the main equipment of the power system, the reliability of the transformer directly affects the safety and stability of the power system. The composition and content of dissolved gas in the transformer oil can effectively reflect the insulation fault inside the operating transformer. Therefore, the analysis method of dissolved gas in the transformer oil At present, it has become an effective monitoring method for fault diagnosis of oil-immersed power equipment in power systems. [0003] However, the currently commonly used oil chromatography on-line monitoring device is mainly used to monitor the content of dissolved gases in the transformer body oil, including hydrogen, acetylene, carbon monoxide, carbon dioxide, methane, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01R31/62G01R1/04
CPCG01N30/02G01R31/62G01R1/0408H01H9/0038H01H33/57H01F27/14B01D19/0063B01D19/0031H01H9/0027H01H2009/0061
Inventor 金雷周凯罗维鲁非刘睿王玮张洪张宇涂亚龙
Owner STATE GRID HUBEI ELECTRIC POWER RES INST