Charged under-pressure plugging device and method for leakage of bolt of electrical equipment

A technology for plugging leakage under pressure and electrical equipment. It is applied to bolts, mechanical equipment, nuts, etc., and can solve problems such as accompanying stoppage, equipment power failure, and low success rate.

Inactive Publication Date: 2020-11-20
SUPER HIGH VOLTAGE BRANCH OF STATE GRID JIBEI ELECTRIC POWER CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, for SF6 electrical equipment with leakage, the commonly used maintenance methods are overall replacement or disassembly for maintenance, but this method requires a long-term power outage of the equipment, and some even need to accompany other equipment to stop, which is harmful to the safe and stable operation of the power grid. Negative impact on social and economic benefits
Conventional leak plugging methods include: repair welding method, steel strip method, fixture glue injection method, glue bonding method, etc. Among them, the repair welding method is suitable for equipment with trachoma-type leaks; the steel strip method and fixture glue injection method need to be customized mold, but the effect is better; the adhesive bonding method is to use the adhesive to directly fill the leaking part of the equipment to achieve plugging. Since the sulfur hexafluoride in the equipment has a certain pressure, it takes time for the adhesive to cure, which leads to its success rate. lower

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0019] The core of the present invention is to provide a plugging device and method for plugging leakage at bolts of electrical equipment, which can effectively improve the plugging effect.

[0020] In order to enable those skilled in the art to better understand the technical solutions provided by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Please refer to figure 1 , the present invention provides a plugging device under live pressure for leakage at the bolts of electrical equipment, including a sealing cover 1 and fasteners, the sealing cover 1 is set on the leakage surface of the bolt 5, and the fasteners are used to fasten the connection and seal Cover 1 and bolt 5.

[0022] By covering the leaking bolt 5 and its nearby leaking surface with the sealing cover 1, and then fastening the fasteners to connect the sealing cover 1 and the bolt 5, so that th...

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PUM

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Abstract

The invention provides a charged under-pressure plugging device for leakage of a bolt of electrical equipment. The device comprises a sealing hood and a fastener. The sealing hood is arranged on a leakage surface of the bolt and the fastener is used for fastening connection of the sealing hood and the bolt. The air leakage bolt and a leakage surface near the air leakage bolt are covered by the sealing hood by a certain external force, and then the fastener connects the sealing hood and the bolt in a fastening manner, so that it is ensured that a leakage area at the bolt is fully sealed by thesealing hood. The device provided by the invention is simple in structure and convenient to operate and improves the plugging effect effectively. The invention further provides a charged under-pressure plugging method adopting the charged under-pressure plugging device for leakage of the bolt of the electrical equipment.

Description

technical field [0001] The invention belongs to the technical field of substation electrical equipment, and in particular relates to a plugging device and method for plugging leakage at bolts of electrical equipment under live pressure. Background technique [0002] Sulfur hexafluoride gas is currently the best insulating medium and arc extinguishing medium in the world. With the development of the power industry, sulfur hexafluoride is widely used in high-voltage electrical equipment because of its good electrical properties. However, due to the material, manufacturing and installation process of the equipment, gas leakage of sulfur hexafluoride electrical equipment occurs frequently. [0003] At present, for SF6 electrical equipment with leakage, the commonly used maintenance methods are overall replacement or disassembly for maintenance, but this method requires a long-term power outage of the equipment, and some even need to accompany other equipment to stop, which is ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B33/00F16J15/02F16J15/06
CPCF16B33/004
Inventor 王占伟李国光曹森李广渊陈国东陈庆军
Owner SUPER HIGH VOLTAGE BRANCH OF STATE GRID JIBEI ELECTRIC POWER CO LTD
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