Special fixing tool for power transformation equipment sulfur hexafluoride gas detection

Abstract

The invention relates to a special fixing tool for power transformation equipment sulfur hexafluoride gas detection, and belongs to the technical field of electrical test assisting tools of substations. The special fixing tool for the power transformation equipment sulfur hexafluoride gas detection comprises a first clamp body and a second clamp body which are symmetrically connected, wherein a positioning mechanism is arranged at a junction of the first clamp body and the second clamp body; arc-shaped pressing parts are arranged at the end parts of clamping parts of the first clamp body and the second clamp body; the first clamp body and the second clamp body are made of aluminum alloy; the aluminum alloy is prepared from the following components in percent by mass: 2.0-3.2% of Mg, 3.5-4.5% of Si, 0.2-0.3% of Mn, 0.1-0.2% of Cr, 0.18-0.25% of Zr, 0.35-0.40% of Ti, 0.15-0.3% of Yb and the balance of Al and impurities with the content being lower than or equal to 0.05%. The special fixing tool for the power transformation equipment sulfur hexafluoride gas detection is simple in structure, high in material strength, resistant to corrosion and convenient to mount and detach, and can remarkably reduce potential safety hazards caused by frequent detachment of screws in 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...

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

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