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Liquid safety valve for controlling the internal pressure of metal-enclosed busbars

A liquid safety valve and metal-enclosed technology, which is applied in the installation of cables, valve devices, cable accessories, etc., can solve problems such as prone to failure, achieve good sealing, and avoid many types of problems.

Active Publication Date: 2020-01-03
BEIJING POWER EQUIP GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a liquid safety valve for controlling the internal pressure of a metal-enclosed busbar, so as to solve the problems in the prior art that are prone to failure and the like

Method used

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  • Liquid safety valve for controlling the internal pressure of metal-enclosed busbars

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Such as figure 1 As shown, the embodiment of the present invention provides a liquid safety valve for controlling the internal pressure of a metal-enclosed busbar, which includes: a pipe body 1 , an end cover 2 , a closing plate 3 , a connecting pipe 4 , and a blocking plate 5 .

[0022] Specifically, in this embodiment, the tube body 1 is U-shaped, with openings at both ends, and the inside is used to contain liquid. Preferably, the tube body 1 is made of a transparent material, such as glass, and is provided with scales (scale lines, numbers or a combination of the two). Further, the tube body 1 is a glass tube with an inner wall of equal diameter. When applied, place vertically.

[0023] The closing plate 3 is located at the first end opening of the pipe body 1 and is used for sealing the first end opening. The closing p...

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Abstract

The invention provides a liquid safety valve for controlling internal pressure of a metal-enclosed bus. The liquid safety valve comprises a U-shaped tube body, a closing plate and a connecting tube, wherein the two ends of the tube body are opened, and a liquid is accommodated in the tube body; the closing plate is located at the first end opening of the tube body and used for sealing the first end opening; and one end of the connecting tube penetrates the closing plate in a sealing manner to be communicated with the interior of the tube body, and the other end of the connecting tube is used for being communicated with the interior of the metal-enclosed bus. By use of the connector principle, the liquid safety valve has the advantages of realizing bidirectional sealing and being simple and reliable, can effectively avoids various problems in the prior art, can also serve as a liquid level manometer and is favorable in sealing performance.

Description

technical field [0001] The invention relates to the technical field of internal pressure control of a metal-enclosed busbar, in particular to a liquid safety valve for controlling the internal pressure of a metal-enclosed busbar. Background technique [0002] Metal-enclosed busbar is an indispensable basic equipment in the power transmission system. It connects the generator outlet with transformers, circuit breakers, transformer cabinets and other equipment. It is widely used in various power plants such as nuclear power, thermal power, hydropower, wind power, and substations. Power distribution system of large industrial and mining enterprises. [0003] The main body of the traditional isolated-phase metal-enclosed busbar is mainly composed of conductors and shells. Among them, the shell should maintain a slight positive pressure gas of no more than 3000Pa (relative pressure, the same below) for a long time to isolate the external air to ensure the internal dryness, impro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K13/10F16K37/00H02G15/00
CPCF16K13/00F16K37/0091H02G15/007
Inventor 张烈
Owner BEIJING POWER EQUIP GRP
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