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Pressure relief valve rain guard

A technology for releasing valves and pressure, which is applied in the field of rainproof devices for pressure relief valves. It can solve problems such as unreasonable sealing structure design, affecting the safe operation of power systems, and no signal from pressure relief valves, etc., and achieves good rainproof effects and extended Effect of service life and reduction of failure rate

Active Publication Date: 2016-02-10
SHUANGLIU COUNTY POWER SUPPLY BRANCH STATE GRID SICHUAN ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the unreasonable design of the sealing structure of the pressure relief valves of some manufacturers, the power transformer has been operated under the harsh conditions of outdoor sun and rain for a long time, which will cause water to enter the pressure relief valve and cause internal components (such as: auxiliary contacts) to be corroded and damaged. , causing the pressure relief valve to fail to send signals or to send random signals, which affects the safe operation of the power system

Method used

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  • Pressure relief valve rain guard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 Shown, the present invention comprises the rainproof cover 1 that shape is hemispherical and the rainproof cover body 2 of vertical support rainproof cover 1, arc groove 4 and tuyere 8 are set on the spherical surface of rainproof cover 1, in the rainproof cover 1 In the tuyere 8 of the rain cover 1, an insect-proof net 3 and a plurality of louver blades 5 are arranged; a square channel is arranged in the middle of the rain cover body 2, and a plurality of fastening belts 6 and the fastening belt 6 are respectively installed on both sides of the square channel. For the matching column 7, one end of the fastening band 6 can be sleeved on the column 7. When it is necessary to take out the pressure relief valve rain guard from the pressure relief valve, the fastening strap can be disengaged from the post before operation.

[0019] When the rainwater falls on the top of the hemispherical rain cover, the rainwater will slide into the low-lying arc-shaped gr...

Embodiment 2

[0021] The preferred specific structure of this embodiment on the basis of Embodiment 1 is as follows: a plurality of louver blades 5 are evenly installed on the upper surface of the insect-proof net 3 . There is an acute angle between each louver blade and the horizontal plane. Reduce the size of the wind poured into the insect net, and keep it ventilated to keep the pressure relief valve and rainproof device dry and prolong the service life.

Embodiment 3

[0023] The preferred specific structure of this embodiment is as follows on the basis of the above-mentioned embodiments: a square channel is arranged in the middle of the rainproof cover body 2 and leads directly to the bottom of the rainproof cover body 2 . It is convenient to cover the pressure relief valve to protect it from rainwater erosion.

[0024] The top of the square passage arranged in the middle of the rainproof cover body 2 is an arc-shaped arc surface. Avoid scratches on the top of the inserted pressure relief valve, which will affect later use.

[0025] The arc-shaped groove 4 traverses the entire spherical arc surface, and the mouths at both ends of the arc-shaped groove 4 for guiding water flow are recessed inward. Allows moisture to drain away.

[0026] The shape of the rainproof cover body 2 is cylindrical.

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Abstract

The invention discloses a pressure relief valve rainproof device which comprises a hemispherical rain cover and a rain cover body vertically supporting the rain cover. An arc groove and an air vent are formed in the spherical face of the rain cover, an insect-proof net and a plurality of blades are arranged in the air vent of the rain cover, a square channel is arranged in the middle of the rain cover body, a plurality of fastening belts and columns matched with the fastening belts are installed on two sides of the square channel, and one end of each fastening belt can sleeve the corresponding column. By means of the structure, the rainproof device saves space and cost, and is insect-proof and good in rainproof effect. The detachable rainproof device is arranged on the pressure relief valve, the operation reliability of the pressure relief valve is improved, and the fault rate is reduced.

Description

technical field [0001] The invention relates to the field of power protection tools, in particular to a rainproof device for a pressure release valve. Background technique [0002] The pressure relief valve is an indispensable protection measure for large and medium-sized transformer mailboxes, and it has replaced the safety air pipe at present. When the transformer sounds faulty and the pressure of the oil tank increases to the action value of the release valve, the pressure release valve will open to protect the oil tank. At the same time, it drives the action of the micro switch, jumps off the switches on each side of the transformer or sends a letter. Poor insulation of the pressure relief valve is likely to cause Wu Faxin, DC grounding, and serious safety accidents. Due to the uneven manufacturers and models of transformer pressure relief valves in power systems, the structures of transformer pressure relief valves are different. Due to the unreasonable design of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K27/12H01F27/00H01F27/14
CPCF16K27/12H01F27/00H01F27/14
Inventor 胡卫
Owner SHUANGLIU COUNTY POWER SUPPLY BRANCH STATE GRID SICHUAN ELECTRIC POWER