CN212304457U

CN212304457U - Pressure relief device for box-type substation

Info

Publication number: CN212304457U
Application number: CN202021329394.2U
Authority: CN
Inventors: 甄鹏飞; 袁国乾
Original assignee: Chongqing Zhongrui Electric Co ltd
Current assignee: Chongqing Zhongrui Electric Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-01-05
Anticipated expiration: 2030-07-07

Abstract

The utility model relates to the technical field of box-type transformer substations, in particular to a pressure relief device for box-type transformer substations, which comprises a transformer substation box body, wherein pressure relief mechanisms are respectively arranged on the outer walls of two sides of the transformer substation box body, each pressure relief mechanism comprises a first pressure relief box, a second pressure relief box is respectively arranged on the top wall and the bottom wall of the first pressure relief box, one side of the first pressure relief box, which is far away from the transformer substation box body, is provided with a pressure relief plate, a plurality of first pressure relief holes are arranged inside the pressure relief plate, fixed plates are respectively welded on the inner walls of two sides of the first pressure relief box, guide holes are respectively arranged inside the fixed plates, the positions, which are close to the top and the bottom, of the fixed plates are respectively provided with a guide rod in a sliding and inserting manner, one end of the guide rod is fixed on the pressure relief plate through bolts, the other end of the guide rod is welded, can carry out fine pressure release to transformer box body inside, the security performance is good.

Description

Pressure relief device for box-type substation

Technical Field

The utility model relates to a box-type substation technical field, specifically speaking relates to a pressure relief device for box-type substation.

Background

The box-type transformer substation, also called a pre-installed transformer substation or a pre-installed transformer substation, is suitable for mines, factory enterprises, oil and gas fields and wind power stations, replaces the original civil power distribution room and power distribution station, and becomes a novel complete set of power transformation and distribution device. However, the existing box-type substation is lack of a pressure relief mechanism, when faults such as short circuit and arcing occur to lines and devices inside the box-type substation, the air pressure inside the substation box is easily too high, the substation box is easily exploded, and the safety performance is poor. In view of this, we propose a pressure relief device for a box-type substation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure relief device for box-type substation to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a pressure relief device for a box-type substation comprises a substation box body, wherein pressure relief mechanisms are arranged on the outer walls of two sides of the substation box body respectively, each pressure relief mechanism comprises a first pressure relief box and a second pressure relief box which are communicated with each other, a pressure relief plate is arranged on one side, away from the substation box body, of each first pressure relief box, and a plurality of first pressure relief holes are formed in each pressure relief plate;

a fixed plate is fixedly arranged in the first pressure relief box, a guide hole is formed in the fixed plate, a guide rod is inserted in the guide hole in a sliding manner, one end of the guide rod is connected with the pressure relief plate, the other end of the guide rod penetrates through the guide hole and is provided with a stop block, a first spring is further sleeved on the guide rod, and two ends of the first spring are respectively connected with the pressure relief plate and the fixed plate;

all be equipped with the second pressure release case on the roof of first pressure release case and the diapire, the second pressure release incasement is equipped with the movable plate of arranging along the horizontal direction, the spout has been seted up on the lateral wall of movable plate, and keeps away from one side of first pressure release case and be equipped with the second spring to be connected with the inner wall of second pressure release case through the second spring, be equipped with on the inside wall of second pressure release case along vertical direction and be equipped with the slider, the slider is inserted and is established in the spout to rather than sliding connection, a plurality of second pressure release holes have been seted up on the lateral wall of second pressure release case.

Preferably, one end of the sliding block, which is close to the first pressure relief box, is provided with a limiting block.

Preferably, one side of the first pressure relief box, which is close to the transformer box body, is provided with a connecting bump, and the connecting bump is communicated with the inside of the transformer box body.

Preferably, one side of the pressure relief plate, which is far away from the first pressure relief box, is provided with a dustproof screen plate.

Compared with the prior art, the beneficial effects of the utility model are that:

this pressure relief device for box-type substation, through pressure relief mechanism's setting, when the inside atmospheric pressure of transformer box is too high, can carry out fine pressure release to inside atmospheric pressure, the security performance is good, has solved current box-type substation and has lacked pressure relief mechanism, when faults such as short circuit, arcing appear in circuit and the device of box-type substation inside, makes transformer box inside atmospheric pressure too high easily, makes transformer box explosion phenomenon appear easily, the relatively poor problem of security performance.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a middle pressure relief mechanism of the present invention;

fig. 3 is an exploded view of the first pressure relief tank of the present invention;

FIG. 4 is a schematic view of a partial structure of the pressure relief plate of the present invention;

FIG. 5 is a schematic structural view of a second pressure relief tank of the present invention;

fig. 6 is a schematic sectional view of the second pressure relief tank of the present invention.

The meaning of the reference symbols in the figures is: 1. a transformer box body; 10. a box door; 11. a top plate; 12. a base; 2. a pressure relief mechanism; 20. a first pressure relief tank; 200. a connection bump; 201. a rectangular hole; 202. a fixing plate; 2020. a guide hole; 203. a pressure relief plate; 2030. a first pressure relief vent; 204. a dustproof screen plate; 205. a guide bar; 206. a stopper; 207. a first spring; 21. a second pressure relief tank; 210. a second pressure relief vent; 211. a slider; 212. a limiting block; 213. moving the plate; 2130. a chute; 214. a second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-6, the present invention provides a technical solution:

the utility model provides a pressure relief device for box-type substation, includes transformer box 1, and transformer box 1's preceding lateral wall opening part symmetry articulates there are two chamber doors 10, and there is base 12 bottom through the bolt fastening, and the top has roof 11 through the bolt fastening, and both sides department is the slope setting around the roof of roof 11 is close to.

All be equipped with pressure relief mechanism 2 on the both sides outer wall of transformer box 1, pressure relief mechanism 2 includes first pressure relief case 20, and rectangular hole 201 has all been seted up to the roof and the diapire of first pressure relief case 20, all is equipped with second pressure relief case 21 on the roof of first pressure relief case 20 and the diapire, and second pressure relief case 21 welds on the inner wall of rectangular hole 201, makes second pressure relief case 21 firmly fix on first pressure relief case 20.

One side that first pressure release case 20 deviates from transformer box body 1 is equipped with pressure release board 203, a plurality of first pressure release holes 2030 have been seted up to pressure release board 203's inside, all weld on the both sides inner wall of first pressure release case 20 fixed plate 202, the inside of fixed plate 202 is close to top and bottom department and has all been seted up guiding hole 2020, it has guide bar 205 to slide in the guiding hole 2020 and peg graft, the bolt fastening is passed through on pressure release board 203 to the one end of guide bar 205, the other end welding of guide bar 205 has dog 206, can play limiting displacement. The guide rod 205 is further sleeved with a first spring 207, and two ends of the first spring 207 are respectively welded on the pressure relief plate 203 and the fixing plate 202.

The inside of second pressure release case 21 is equipped with movable plate 213 along the horizontal direction, all seted up two spouts 2130 along vertical direction on the both sides inner wall of movable plate 213, the diapire welding of movable plate 213 has two second springs 214, the bottom welding of second spring 214 is on the inner wall of second pressure release case 21, it has two sliders 211 all to follow vertical direction on the both sides inner wall of second pressure release case 21, the size of slider 211 and spout 2130's size looks adaptation, and one-to-one sliding connection, a plurality of second pressure release holes 210 have all been seted up on the both sides outer wall around the second pressure release case 21.

In this embodiment, a limiting block 212 is welded at one end of the slider 211 close to the first pressure relief tank 20, and the limiting block 212 can limit the position of the moving plate 213.

In this embodiment, the first pressure relief tank 20 has a connection protrusion 200 integrally formed on an outer wall of a side close to the transformer substation body 1, and is communicated with the inside of the transformer substation body 1 through the connection protrusion 200.

Furthermore, the outer wall of one side of the pressure release plate 203, which is away from the guide rod 205, is fixed with a dustproof screen plate 204 through bolts, when the internal pressure of the transformer box body 1 is normal, the inside of the transformer box body 1 can be ventilated and cooled through the first pressure release holes 2030, and the dustproof screen plate 204 can prevent dust from entering the inside of the transformer box body 1.

When the pressure relief device for the box-type substation of the embodiment is used, when the pressure is too high due to a failure in the substation box body 1, the pressure enters the first pressure relief box 20, a part of the pressure gas firstly overflows through the first pressure relief hole 2030 to be relieved, meanwhile, the air pressure pushes the pressure relief plate 203 to move to make it leave the first pressure relief box 20 for pressure relief, at this time, the first spring 207 is in a stretching state, another part of the air pressure enters the second pressure relief box 21 to push the moving plate 213 to move, the pressure can be relieved through the second pressure relief hole 210, while the second spring 214 is in a compressed state, when the air pressure inside the transformer substation box body 1 returns to normal, the first spring 207 and the second spring 214 return to their original states under the action of the elastic force, the first spring 207 drives the pressure relief plate 203 to be attached to the first pressure relief box 20, and the second spring 214 pushes the moving plate 213 to abut against the position of the limiting block 212.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a pressure relief device for box-type substation, includes transformer box body (1), its characterized in that: the transformer substation box body is characterized in that pressure relief mechanisms (2) are arranged on the outer walls of two sides of the transformer substation box body (1), each pressure relief mechanism (2) comprises a first pressure relief box (20) and a second pressure relief box (21) which are communicated, a pressure relief plate (203) is arranged on one side, away from the transformer substation box body (1), of each first pressure relief box (20), and a plurality of first pressure relief holes (2030) are formed in each pressure relief plate (203);

a fixing plate (202) is fixedly arranged in the first pressure relief box (20), a guide hole (2020) is formed in the fixing plate (202), a guide rod (205) is inserted in the guide hole (2020) in a sliding manner, one end of the guide rod (205) is connected with the pressure relief plate (203), the other end of the guide rod (205) penetrates through the guide hole (2020) and is provided with a stop block (206), a first spring (207) is further sleeved on the guide rod (205), and two ends of the first spring (207) are respectively connected with the pressure relief plate (203) and the fixing plate (202);

all be equipped with second pressure release case (21) on the roof and the diapire of first pressure release case (20), be equipped with movable plate (213) of arranging along the horizontal direction in second pressure release case (21), spout (2130) have been seted up on the lateral wall of movable plate (213), and keep away from one side of first pressure release case (20) and be equipped with second spring (214) to be connected with the inner wall of second pressure release case (21) through second spring (214), be equipped with on the inside wall of second pressure release case (21) and be equipped with slider (211) along vertical direction, slider (211) are inserted and are established in spout (2130) to rather than sliding connection, a plurality of second pressure release holes (210) have been seted up on the lateral wall of second pressure release case (21).

2. The pressure relief device for a box-type substation according to claim 1, characterized in that: and a limiting block (212) is arranged at one end, close to the first pressure relief box (20), of the sliding block (211).

3. The pressure relief device for a box-type substation according to claim 1, characterized in that: one side of the first pressure relief box (20) close to the power transformation box body (1) is provided with a connecting lug (200) and communicated with the inside of the power transformation box body (1) through the connecting lug (200).

4. The pressure relief device for a box-type substation according to claim 1, characterized in that: and a dustproof screen plate (204) is arranged on one side of the pressure relief plate (203) far away from the first pressure relief box (20).