CN112803292A

CN112803292A - Pressure relief channel for switch cabinet and switch cabinet system

Info

Publication number: CN112803292A
Application number: CN202011621611.XA
Authority: CN
Inventors: 高翔; 宋德文; 管竹青; 孔祥冲; 彭凤娟
Original assignee: Qingdao Yihe Electric Group Co ltd
Current assignee: Qingdao Yihe Electric Group Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-05-14

Abstract

The utility model relates to a pressure release passageway and cubical switchboard system for on cubical switchboard belongs to cubical switchboard protection technical field, this cubical switchboard pressure release passageway includes a plurality of settings at the cubical switchboard top and the cavity that communicates each other, the bottom surface of cavity is uncovered, the roof of cavity is equipped with the thermovent, the tip of these interconnect cavities is equipped with the unsettled arc starting passageway of level, the articulated pressure release closure plate that can be used to seal the arc starting passageway of arc starting passageway on whole passageway length direction's terminal surface of arc starting passageway. This channel structure is simple, and the installation of being convenient for through the mode of leading out pressure, splash outside the cabinet, fine prevention splash leaks, and the pressure release closure plate can in time be opened again, and pressure, smog in time discharge, guarantee property safety.

Description

Pressure relief channel for switch cabinet and switch cabinet system

Technical Field

The utility model belongs to the technical field of the cubical switchboard protection, specifically relate to a pressure release passageway and cubical switchboard system for on cubical switchboard.

Background

The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.

Along with the stricter requirements of people on the switch cabinet, the consideration on the safety is more and more thorough, the pressure relief channel plays a vital role in the safety performance of the switch cabinet, and the personal and property safety is well ensured. The original pressure relief device for the switch cabinet prevents personal and property injuries by means of pressure reduction and splash blocking, and is complex in procedure, high in manufacturing difficulty, time-consuming and labor-consuming. The arc may be generated in the switch cabinet body, and a large object can be ejected, so that the personal safety and the property safety are directly influenced.

The inventor finds that: the existing pressure relief devices of most existing switch cabinets have the problems of complex procedures, high manufacturing difficulty, time and labor consumption and the like, and when the switch cabinet generates internal arcing, the possibility of ejecting large objects exists.

Disclosure of Invention

To the technical problem that prior art exists, this disclosure provides a pressure release passageway and cubical switchboard system for on cubical switchboard.

The utility model discloses an at least embodiment provides a pressure release passageway for on cubical switchboard, this passageway includes a plurality of settings at the cubical switchboard top and the cavity that communicates each other, and the bottom surface of cavity is uncovered, and the roof of cavity is equipped with the thermovent, and the tip of these interconnect cavitys is equipped with the unsettled striking passageway of level, and the striking passageway articulates the pressure release closure plate that can be used to seal the striking passageway on whole passageway length direction's terminal surface.

Furthermore, the surface of the pressure relief plugging plate is uniformly provided with heat dissipation ports.

Further, the arc striking channel is provided with a bottom plate, and the upper surface of the bottom plate is provided with a through hole.

Further, the pressure relief blocking plate is rotationally fixed on the bottom plate through a rotating shaft.

Furthermore, the end face of the top plate of the arc striking channel, which is butted with the pressure relief blocking plate, is extended and bent downwards to form a bent plate, and meanwhile, a clamping plate perpendicular to the surface of the pressure relief blocking plate is arranged on the outer side of the top of the pressure relief blocking plate.

Furthermore, two groups of heat dissipation ports are arranged on the top plate in the length direction, a gap is formed between the two groups of heat dissipation ports, and reinforcing ribs are arranged in the gap between the two groups of heat dissipation ports on the inner side of the top plate.

Further, the cavity still includes first riser and the second riser with roof mutually perpendicular, the riser is equipped with the bolt hole at the both ends of direction of height, and first riser and second riser are passed through the transverse plate in the bottom of length direction both sides and are connected, be equipped with the bolt hole on the transverse plate.

Further, the top is U type apron, connects through U type connecting plate between two adjacent roofs, U type connecting plate is connected and is passed through bolted connection with two U type apron respectively, and the top of U type connecting plate is equipped with two vertical reinforcing plates.

At least one embodiment of the present disclosure further provides a switch cabinet system, which includes a plurality of switch cabinets connected in sequence, and a pressure relief channel for a switch cabinet is disposed at the top of each of the switch cabinets.

Furthermore, a pressure relief plate which can be opened by vertical impact force is arranged at the top of the switch cabinet.

The beneficial effects of this disclosure are as follows:

the pressure relief channel for the switch cabinet is simple in structure and convenient to install, pressure and splashes are led out of the cabinet, the splashes are well prevented from leaking, the pressure relief blocking plate can be opened in time, the pressure and the smog are discharged in time, and property safety is guaranteed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.

Fig. 1 is a mounting structure diagram of a pressure relief channel used in a switch cabinet according to an embodiment of the present disclosure;

fig. 2 is a front view of a pressure relief channel for use in a switchgear provided in an embodiment of the present disclosure;

fig. 3 is a bottom view of a pressure relief channel for a switch cabinet according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of the operation of a pressure relief channel provided by an embodiment of the present disclosure;

FIG. 5 is a block diagram of a buffer chamber in a pressure relief channel provided by an embodiment of the present disclosure;

fig. 6 is a structural diagram of a U-shaped cover plate in a pressure relief channel provided in the embodiment of the present disclosure;

fig. 7 is a structural diagram of a reinforcement rib in a pressure relief channel provided in an embodiment of the present disclosure.

In the figure: 1. buffer cavity, 11, roof, 12, front bezel, 13, back plate, 14, diaphragm, 15, louvre, 16, fixed block, 17, reinforcing plate, 2, striking channel, 21, bottom plate, 22, through-hole, 23, gusset, 3, pressure release closure plate, 4, bent plate, 5, cardboard.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

As shown in fig. 1-3, the present disclosure provides a pressure relief channel and a switch cabinet system for a switch cabinet, where the pressure relief channel includes a buffer cavity 1 disposed at the top of a plurality of switch cabinets arranged mutually, the pressure relief cavities are the same in size and are communicated with each other, and the bottoms of the buffer cavities are open, and are integrally U-shaped, and are fixed at the top of the switch cabinet by bolts, and are communicated with the inside of the switch cabinet by a reversible pressure relief plate at the top of the switch cabinet, the buffer cavity at the leftmost end of the pressure relief channel is sealed by a sealing plate, the buffer cavity at the rightmost end is horizontally connected, and a suspended arc striking channel 2, where the shape of the arc striking channel is substantially the same as that of the buffer cavity 1.

As shown in fig. 2, the outermost layer of the arc ignition channel is rotatably connected with a pressure relief blocking plate 3, and the pressure relief blocking plate is rotatably fixed on the bottom plate of the arc ignition channel through a rotating shaft.

Further, in this embodiment, a plurality of heat dissipation holes 15 are uniformly formed in a top plate of the buffer cavity 1 to dissipate heat of high temperature and high pressure rushing out from the inside of the switch cabinet, as shown in fig. 4, when arcing occurs inside the switch cabinet, high-strength pressure, high temperature and damaged parts are generated, and at this time, the high pressure, high temperature and damaged parts are sprayed upwards. The pressure relief plate is in contact with the pressure relief plate of the cabinet body in the upward gushing process, the pressure relief plate is forced to be opened under the action of high temperature and high pressure, and pressure and a small part of splashes enter the pressure relief channel. After the first decompression, the damaged parts and high pressure that continue to gush contact with the pressure release passageway roof, high pressure and splash will fill in whole pressure release passageway thereupon, finally contact with pressure release closure plate 2 on the striking passageway, and under the pressure effect, pressure release closure plate opens rapidly and releases pressure, splash etc to finally reach the pressure release effect.

Further, as shown in fig. 5, the buffer cavity 1 in this example includes a top plate 11, and a front plate 12 and a rear plate 13 which are vertically connected, wherein bolt holes are formed in the top of the front plate and the rear plate for connecting the top plate 11, a horizontal connecting table is formed in the bottom of the front plate and the rear plate, bolt holes are formed in the horizontal connecting table for connecting the top surface of the switch cabinet, the top and the bottom of the two sides of the front plate and the bottom of the rear plate in the length direction are connected through a horizontal plate 14, bolt holes are formed in the horizontal plate, two adjacent buffer cavities are in butt joint through the horizontal plate 14 on the front plate and the rear plate, and then the two buffer cavities are connected through bolts, so that the overall strength of the pressure relief channel can be enhanced.

Roof 11 is U type apron, and two vertical plates of U type apron pass through bolted connection with front bezel and back plate respectively and are in the same place, are connected through U type connecting plate 14 between the roof on two adjacent cushion chambers as shown in fig. 6, U type connecting plate lid realizes connecting between them through the bolt hole that coincides mutually on U type connecting plate and the roof, simultaneously the top surface of U type connecting plate is equipped with two fore-and-aft reinforcing plates 17, can improve the joint strength of roof in the pressure release passageway like this through U type connecting plate.

It should be noted that, in the present embodiment, two sets of heat dissipation holes are disposed on the top plate, a gap is disposed between the two sets of heat dissipation holes, some fixing holes 16 are disposed in the gap between the two sets of heat dissipation holes, and reinforcing ribs are disposed on the surface inside the top plate as shown in fig. 7.

As shown in fig. 3, in the arc striking channel provided in a suspended manner in this embodiment, a bottom plate 21 is provided on the arc striking channel, a through hole 22 is provided on a surface of one side of the bottom plate close to the pressure relief blocking plate, and the bottom plate on the arc striking channel can be used for protecting the strength of the bottom of the pressure relief channel and removing water in the channel.

Furthermore, the upper end part of the bottom plate in the arc striking channel is downwards connected with a rib plate 23, the pressure relief blocking plate 3 is rotationally fixed on the rib plate through a rotating shaft, and the arc striking channel can be closed and opened through the pressure relief blocking plate through rotation.

Further, the roof of striking passageway outwards prolongs, and the while downwarping forms bent plate 4, the top of pressure release plugged plate is equipped with the perpendicular to cardboard 5 on plugged plate surface, and is through rotating like this the pressure release plugged plate passes through the cardboard card on the pressure release plugged plate and goes into the space of bent plate lower part on the roof, bent plate and cardboard have certain pliability, can fix the pressure release plugged plate on the one hand like this, and on the other hand, when the increase of pressure in the striking passageway, the cardboard on the pressure release plugged plate atress its surface can break the bent plate and realize inside pressure release.

Still other embodiments of the present disclosure provide a switch cabinet system comprising a plurality of interconnected switch cabinets, wherein the top of each switch cabinet is provided with a reversible pressure relief plate, and the pressure relief channel is fixed on the top of the switch cabinets through bolts.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present disclosure and not to limit, although the present disclosure has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present disclosure without departing from the spirit and scope of the technical solutions, and all of them should be covered in the claims of the present disclosure.

Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.

Claims

1. The utility model provides a pressure release passageway for on cubical switchboard, its characterized in that includes a plurality of settings at the cubical switchboard top and the cavity that communicates each other, and the bottom surface of cavity is uncovered, and the roof of cavity is equipped with the thermovent, and the tip of these interconnect cavitys is equipped with the unsettled arc starting passageway of level, and the articulated pressure release closure plate that can be used to seal the arc starting passageway of arc starting passageway on whole channel length direction's terminal surface of arc starting passageway.

2. The pressure relief channel for a switchgear of claim 1, wherein the surface of the pressure relief closure is uniformly provided with heat dissipating holes.

3. The pressure relief channel for a switch cabinet as claimed in claim 1, wherein the arc striking channel is provided with a bottom plate, and the upper surface of the bottom plate is provided with a through hole.

4. The pressure relief channel for a switchgear cabinet as claimed in claim 3, wherein the pressure relief closure is rotatably fixed to said base plate by a rotating shaft.

5. The pressure relief channel for a switch cabinet as claimed in claim 1 or 4, wherein the end surface of the arc striking channel where the top plate is butted with the pressure relief closure plate is extended and bent downward to form a bent plate, and the outside of the top of said pressure relief closure plate is provided with a clamping plate perpendicular to the surface of said pressure relief closure plate.

6. The pressure relief channel for a switch cabinet as claimed in claim 1, wherein said top plate has two sets of heat dissipating ports along its length, a gap is formed between the two sets of heat dissipating ports, and a rib is formed in the gap between the two sets of heat dissipating ports inside the top plate.

7. The pressure relief passage for a switch cabinet as claimed in claim 1, wherein said cavity further comprises a first vertical plate and a second vertical plate perpendicular to said top plate, said vertical plates having bolt holes at both ends in the height direction, said first vertical plate and said second vertical plate being connected at the bottom of both sides in the length direction by a horizontal plate, said horizontal plate having bolt holes.

8. The pressure relief channel for the switch cabinet as claimed in claim 5, wherein the top is a U-shaped cover plate, two adjacent top plates are connected by a U-shaped connecting plate, the U-shaped connecting plate is connected with the two U-shaped cover plates respectively by bolts, and two vertical reinforcing plates are arranged on the top of the U-shaped connecting plate.

9. A switchgear system, comprising a plurality of successively connected switchgears, wherein the top of the switchgears is provided with a pressure relief channel for the switchgear according to any one of claims 1 to 8.

10. The switchgear system of claim 9 wherein the top of the switchgear is provided with a vent plate that can be opened by a vertical impact force.