CN-224203912-U - Rain cover for pressure relief valve of tank

Abstract

The utility model discloses the technical field of transformer components, in particular to a rain cover for a tank pressure release valve. The pressure release valve comprises a cover body main body, a cover, a cover cap and a pressure release valve, wherein the cover body main body is arranged on the pressure release valve, the cover cap is arranged right above a valve port of the pressure release valve and is rotatably arranged on the cover body main body, in an initial state, the cover cap is closed, the valve port is covered in a space formed by the cover body main body and the cover cap, in a pressure release state, the cover cap can be turned over and opened by high-pressure gas discharged from the valve port, so that the pressure release valve can be quickly released, the requirement of short-time and large-scale air leakage of the pressure release valve is met, and the pressure release effect is improved.

Inventors

• Man Jianhui
• MA NINGNING
• Tong Shouchen
• MA YONGZHONG
• LI YANZHENG
• LIU XIN
• An Jiedong
• GUO YUJUAN

Assignees

• 三峡新能源大柴旦风电有限公司

Dates

Publication Date

20260505

Application Date

20250603

Claims (10)

1. 1. A tank pressure relief valve rain cover comprising: a cover body main body (1) mounted on the pressure release valve; The pressure release valve comprises a cover (2) arranged right above a valve port of the pressure release valve and rotatably arranged on a cover body main body (1), wherein in an initial state, the cover (2) is closed, the valve port is covered in a space formed by the cover body main body (1) and the cover (2), and in a pressure release state, the cover (2) can be turned over and opened by high-pressure gas discharged from the valve port.
2. 2. Tank pressure relief valve rain cover according to claim 1, characterized in that the top surface of the cover cap (2) is formed with a ramp structure (21).
3. 3. Tank pressure relief valve rain cover according to claim 1, characterized in that the outer circumference of the cover cap (2) is provided with a first sealing structure (22).
4. 4. The tank pressure release valve rain cover according to claim 1, characterized in that the top outer edge of the cover cap (2) is formed with a water blocking rim (23) extending.
5. 5. The tank pressure release valve rainproof cover according to claim 1, wherein the cover body main body (1) comprises a first cover body (12) and a second cover body (13) which are communicated, the cover (2) is rotatably installed on the first cover body (12), the second cover body (13) is enclosed on the valve port, and the radial dimension of the second cover body (13) is gradually reduced from bottom to top.
6. 6. The tank pressure release valve rain cover according to claim 5, characterized in that the second cover body (13) is provided with a wire through hole (131).
7. 7. The tank pressure release valve rain cover according to claim 6, characterized in that the inner circumference of the wire passing hole (131) is provided with a second sealing structure.
8. 8. The tank pressure relief valve rain cover according to claim 5, wherein the bottom of the second cover body (13) is outwardly extended to form a mounting table (132), the mounting table (132) being adhered to the pressure relief valve.
9. 9. The tank pressure release valve rain cover according to any one of claims 1 to 8, wherein the cover body (1) is provided with air holes (11).
10. 10. The tank pressure release valve rain cover according to claim 9, wherein a plurality of air holes (11) are provided, and a plurality of the air holes (11) are uniformly arranged at intervals along the circumferential direction of the cover body (1).

Description

Rain cover for pressure relief valve of tank Technical Field The utility model relates to the technical field of transformer components, in particular to a rain cover of a tank pressure release valve. Background The pressure relief valve is an important protection component of the box-type transformer, and can cause the pressure in the transformer oil tank to increase suddenly when faults occur in the box-type transformer, such as short circuits, local overheating and the like. At the moment, the pressure release valve can be quickly opened to release the pressure of the oil tank, so that the transformer oil tank is prevented from deformation or even burst. Because the box transformer is usually installed outdoors, it is in a severe environment of sun and rain for a long time. If no effective rain-proof measures are available, rainwater is extremely easy to enter the interior from the valve port of the pressure release valve, so that the interior is rusted and damaged, and subsequent faults are caused. At present, the common rainproof mode is that a rainproof cover structure is additionally arranged at a valve port of a pressure release valve, the rainproof cover is of a simple integrated structure, the top of the rainproof cover is closed, a through hole is formed in the peripheral wall of the rainproof cover so as to be breathable, when the pressure of an oil tank is overlarge and the pressure release valve is required to release pressure rapidly in a short time, the conventional rainproof cover structure is difficult to meet the requirement of short-time massive air release, the pressure release effect of the pressure release valve can be weakened to a certain extent, and the pressure release of the pressure release valve is not facilitated. Disclosure of utility model The utility model aims to provide a rain cover of a pressure release valve of a tank, which aims to solve the problem that the pressure release effect is poor after the existing pressure release valve is additionally provided with the rain cover. In order to achieve the above purpose, the present utility model adopts the following technical scheme: there is provided a tank pressure relief valve rain cover comprising: The cover body main body is arranged on the pressure release valve; the pressure release valve comprises a cover, a cover body, a pressure release valve and a pressure release valve, wherein the cover is arranged right above a valve port of the pressure release valve and rotatably arranged on a cover body main body, in an initial state, the cover is closed, the valve port is covered in a space formed by the cover body main body and the cover, and in a pressure release state, the cover can be turned over and opened by high-pressure gas discharged from the valve port. Optionally, the top surface of the cover is formed with a sloping surface structure. Optionally, the outer periphery of the cover is provided with a first sealing structure. Optionally, a water blocking edge is formed on the outer edge of the top surface of the cover in an extending manner. Optionally, the cover body main part includes the first cover body and the second cover body of intercommunication, the shroud rotate install in the first cover body, the second cover body encloses and locates the valve port, the radial size of the second cover body reduces gradually from bottom to top. Optionally, the second cover body is provided with a wire through hole. Optionally, a second sealing structure is arranged on the inner periphery of the wire through hole. Optionally, a mounting table surface is formed by extending the bottom of the second cover body outwards, and the mounting table surface is adhered to the pressure release valve. Optionally, the cover body is provided with air holes. Optionally, the air holes are provided in plurality, and a plurality of air holes are uniformly arranged along the circumferential interval of the cover body main body. Compared with the prior art, the technical scheme provided by the embodiment of the utility model has the following advantages: The rain cover of the pressure release valve of the tank comprises a cover body main body and a cover cap, when the pressure release valve is in a pressure release state, the cover cap can be turned over and opened by gas at a valve port of the pressure release valve, so that the pressure release valve can be rapidly released, the requirement of the pressure release valve for a large amount of air leakage in a short time is met, and the pressure release effect is improved. Drawings In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the embodiments of the present utility model will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort. FIG. 1 is a front view of a rain cover for a tank pressure relief valve according t