Special fixing tool for power transformation equipment sulfur hexafluoride gas detection

A technology for sulfur hexafluoride gas and power transformation equipment, which is applied in the analysis of gas mixtures, structural details of gas analyzers, and measurement devices, etc. Handy effect

Inactive Publication Date: 2017-12-19
国网河南省电力公司超高压公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent has the following defects: the splint structure adopted by the special tool is the combination of the inner splint and the outer splint. Although the contact surface can be increased, the force on the outer splint is obtained by the transmission of the inner splint. It must not be as big as the inner splint, and the inner splint is connected with the guide rail of the outer splint, which makes the force on the flange surface uneven and the operation stability is poor
This patent has the following defects: in the process of connecting the upper fixing part and the lower fixing part, the connection device needs to adjust the distance between the basic handle and the movable handle by constantly debugging the adjustment rod, so as to adjust the upper clamp and the lower part. The distance between the clamps is to adapt to the connection of the upper fixing part and the lower fixing part. The whole process is cumbersome to operate, takes a long time, has low work efficiency and is easy to be damaged, and this device is often used for the connection of sulfur hexafluoride gas-insulated equipment It is easy to be corroded, and the patent does not improve the material of the device to meet the needs of work intensity and environment

Method used

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  • Special fixing tool for power transformation equipment sulfur hexafluoride gas detection
  • Special fixing tool for power transformation equipment sulfur hexafluoride gas detection

Examples

Experimental program
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Effect test

Embodiment 1

[0055] refer to Figure 1~2 , a special fixing tool for detecting sulfur hexafluoride gas in power transformation equipment, a first clamp body 1 and a second clamp body 2, the first clamp body and the second clamp body are connected by a pin shaft 3, on the pin shaft A torsion spring is set, a ratchet 4 is fixedly arranged on the second caliper body, a pawl 5 and a pawl control button 6 are arranged on the first pliers body, the pawl is fixedly connected with the pawl control button, and the torsion spring One end of the pliers body is in contact with the second pliers body, and the other end is in contact with the pawl control button, and the first pliers body and the second pliers body respectively include a gripping part (101, 201) and a clamping part (102, 202), the end of the clamping part is provided with a circular arc-shaped pressing part 7, and the first clamp body and the second clamp body are made of aluminum alloy,

[0056] Among them, the torsion spring is a mec...

Embodiment 2

[0080] The structure of the special fixing tool for detecting sulfur hexafluoride gas in the substation equipment in this embodiment is basically the same as that in Embodiment 1, except that:

[0081] The aluminum alloy is made of the following components in mass percentage:

[0082] Mg: 2.8%;

[0083] Si: 4.2%;

[0084] Mn: 0.28%;

[0085] Cr: 0.16%;

[0086] Zr: 0.23%;

[0087] Ti: 0.38%;

[0088] Yb: 0.25%;

[0089] The balance is Al and impurities with a content of ≤0.05%.

[0090] The preparation method of the aluminum alloy comprises the following steps:

[0091] Step S1: Carry out alloy smelting according to the above composition ratio, the alloy smelting temperature is 735°C, and keep warm for 10 minutes to obtain alloy melt 1;

[0092] Step S2: adding a refining agent to the obtained alloy melt 1 for refining, the refining temperature is 735° C., and the time is 12 minutes to obtain alloy melt 2;

[0093] Step S3: cooling and extruding the molten alloy 2 to ...

Embodiment 3

[0101] The structure of the special fixing tool for detecting sulfur hexafluoride gas in the substation equipment in this embodiment is basically the same as that in Embodiment 1, except that:

[0102] The aluminum alloy is made of the following components in mass percentage:

[0103] Mg: 2.2%;

[0104] Si: 3.6%;

[0105] Mn: 0.23%;

[0106] Cr: 0.12%;

[0107] Zr: 0.20%;

[0108] Ti: 0.36%;

[0109] Yb: 0.18%;

[0110] The balance is Al and impurities with a content of ≤0.05%.

[0111] The preparation method of the aluminum alloy comprises the following steps:

[0112] Step S1: Carry out alloy melting according to the above-mentioned composition ratio, the alloy melting temperature is 725°C, and keep warm for 12 minutes to obtain alloy melt 1;

[0113] Step S2: adding a refining agent to the obtained alloy melt 1 for refining, the refining temperature is 732° C., and the time is 15 minutes to obtain alloy melt 2;

[0114] Step S3: cooling and extruding the molten all...

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Abstract

The invention relates to a special fixing tool for detection of sulfur hexafluoride gas in substation equipment, which belongs to the technical field of electrical test and detection auxiliary tools for substations. The connecting part with the second pliers is provided with a positioning mechanism, and the ends of the clamping parts of the first pliers and the second pliers are provided with arc-shaped pressing parts, and the first pliers and the second pliers are Aluminum alloy parts, the aluminum alloy is made of the following components in mass percentage: Mg2.0~3.2%; Si3.5~4.5%; Mn0.2~0.3%; Cr: 0.1~0.2%; Zr0.18 ~0.25%; Ti0.35~0.40%; Yb0.15~0.3%; the balance is Al and impurities with content ≤0.05%. The fixing tool of the present invention has simple structure, high material strength, corrosion resistance, convenient installation and disassembly, and can significantly reduce safety hazards caused by frequent disassembly of screws during the SF6 gas detection process.

Description

technical field [0001] The invention belongs to the technical field of electrical test and detection auxiliary tools for substations, and in particular relates to a special fixing tool for detecting sulfur hexafluoride gas in substation equipment. Background technique [0002] Sulfur hexafluoride SF 6 The gas has good electrical insulation performance and excellent arc extinguishing performance. Its electric strength is 2.5 times that of nitrogen under the same pressure, its breakdown voltage is 2.5 times that of air, and its arc extinguishing ability is 100 times that of air. A new generation of ultra-high voltage insulating dielectric material between air and oil, SF 6 It is widely used in power equipment for its good insulation performance and arc extinguishing performance, such as: circuit breakers, gas-enclosed composite capacitors, transformers, etc. [0003] SF 6 Gas humidity is one of the main items of fresh gas acceptance and operation gas supervision. The humidi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/0009G01N33/0044
Inventor 张琪王若星王洪波张军建王璐李秀珍毛峰郭夏陈军枝
Owner 国网河南省电力公司超高压公司
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