CN219247216U - Pressure relief device of high-voltage switch cabinet - Google Patents
Pressure relief device of high-voltage switch cabinet Download PDFInfo
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- CN219247216U CN219247216U CN202320089224.9U CN202320089224U CN219247216U CN 219247216 U CN219247216 U CN 219247216U CN 202320089224 U CN202320089224 U CN 202320089224U CN 219247216 U CN219247216 U CN 219247216U
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Abstract
The utility model discloses a pressure relief device of a high-voltage switch cabinet, which comprises a cabinet body, wherein at least one pressure relief mechanism for pressure relief is arranged on the outer side of the side wall of the cabinet body; the pressure release mechanism mainly comprises a pressure release bin, a pressure release door, a rope tying column and a rope, a pressure release opening is formed in the side wall of the cabinet body, the pressure release bin is fixed at the position of the pressure release opening in the outer side of the side wall of the cabinet body, the pressure release bin is of a hollow structure with two opposite openings, the first opening of the pressure release bin is communicated with the pressure release opening in a sealing mode, and the second opening of the pressure release bin is provided with a pressure release door which can be opened or closed. The utility model adopts a pressure relief mode without power and other energy sources, and the normally closed pressure relief door is opened by impacting the high-pressure gas generated in the cabinet body, so that the pressure relief door can be opened and relieved in time when the high-pressure gas is generated in the cabinet body, and the damage caused by the high-temperature high-pressure gas is reduced as much as possible.
Description
Technical Field
The utility model relates to the technical field of high-voltage switch cabinets, in particular to a pressure relief device of a high-voltage switch cabinet.
Background
The high-voltage switch cabinet is used for power generation, power transmission, power distribution, electric energy conversion and consumption of a power system and has the functions of on-off, control or protection. The high-voltage switch cabinet is used as an electrical product with the voltage class of 3.6 kV-550 kV, and the high-voltage isolating switch, the grounding switch, the high-voltage load switch, the high-voltage automatic superposition and sectionalizer, the high-voltage operating mechanism, the high-voltage explosion-proof power distribution device, the high-voltage switch cabinet and the like are large.
In the use process of the switch cabinet, loop short-circuit faults occur due to various reasons (such as short circuit, insulation aging, manual misoperation and the like), high-temperature and high-pressure gas is instantaneously generated under the short-circuit current of tens of thousands of amperes, and if the high-temperature and high-pressure gas cannot be effectively released in a narrow cabinet body in a very short time, the switch cabinet is burst, the adjacent switch cabinets are damaged, and meanwhile, the personal safety is possibly damaged. Therefore, the switchgear must be designed with consideration for effective pressure relief.
Therefore, there is a need for a high voltage switchgear that can quickly relieve pressure when high pressure gas is generated in the switchgear body, so as to solve or alleviate the above-mentioned problems.
Disclosure of Invention
The utility model aims to solve the problems and provide the pressure relief device of the high-voltage switch cabinet, which adopts a pressure relief mode without power and other energy sources, and the pressure relief door in a normally closed state is opened by impacting through high-pressure gas generated in the cabinet body, so that the pressure relief door can be opened and relieved in time when the high-pressure gas is generated in the cabinet body, and the damage caused by the high-temperature high-pressure gas is reduced as much as possible.
The utility model realizes the above purpose through the following technical scheme:
the pressure relief device of the high-voltage switch cabinet comprises a cabinet body, wherein at least one pressure relief mechanism for pressure relief is arranged on the outer side of the side wall of the cabinet body;
the pressure release mechanism mainly comprises a pressure release bin, a pressure release door, a rope tying column and a rope, wherein the side wall of the cabinet body is provided with a pressure release opening, the outside of the side wall of the cabinet body is positioned at the position of the pressure release opening, the pressure release bin is of a hollow structure with two opposite faces open, the first face of the pressure release bin is in sealed communication with the pressure release opening, the second face of the pressure release bin is provided with the openable or closable pressure release door, the pressure release bin and the pressure release door are respectively provided with the rope tying column, and the two rope tying columns are connected through the rope which can be broken.
Preferably, the pressure release mechanism further comprises a rope cutter and a piston push plate, the bottom end of the pressure release door is connected with the pressure release bin through a hinge, two rope tying columns are respectively fixed at the top of the pressure release bin and the top of the pressure release door, the top of the pressure release bin is located below the rope and provided with a perforation for the rope cutter to pass through, the rope cutter is vertically arranged, the top end of the rope cutter is a cutting edge, the bottom end of the rope cutter is fixed to the piston push plate, a part of the rope cutter outside the pressure release bin is extended to be fixed with an anti-falling block for preventing the rope cutter from falling off, and the piston push plate is horizontally arranged in the pressure release bin and movably connected with the pressure release bin, the pressure release door and the outer side wall of the cabinet body located in the pressure release bin.
Preferably, the pressure release mechanism further comprises a stress support lug, at least one stress support lug is fixedly arranged at the edge of the pressure release door, and at least one spring push rod assembly for pushing the stress support lug is arranged on the outer side of the side wall of the cabinet body.
Preferably, the spring push rod assembly mainly comprises mounting panel, sliding sleeve, slide bar, kicking block and spring, and the mounting panel is fixed in the lateral wall outside of the cabinet body, and the sliding sleeve is fixed in on the mounting panel, and sliding fit has the slide bar in the mounting panel, and the one end that the slide bar deviates from the sliding sleeve is fixed with the kicking block, is provided with the spring of cover on sliding sleeve and slide bar between kicking block and the mounting panel, and kicking block and atress journal stirrup contact.
Preferably, the rope column is provided with a groove on the outer surface.
Preferably, the rope is one of nylon rope, synthetic fiber rope and plastic rope.
The technical scheme provided by the utility model can comprise the following beneficial effects:
1. when the conditions such as short circuit occur in the cabinet body, high-pressure gas is generated, the high-pressure gas enters the inner cavity of the pressure relief bin through the pressure relief opening, then the piston pushing plate is impacted to drive the rope cutting knife to ascend, then the rope cutting knife cuts off the rope in the ascending process, after the rope is not pulled, the high-pressure gas in the cabinet body pushes the pressure relief door to open the opening of the pressure relief bin, so that the high-pressure gas is discharged, and the pressure relief door can be opened and relieved in time when the high-pressure gas is generated in the cabinet body;
2. when the pressure release door is in a closed state, the pressure release door presses the ejector block, so that the ejector block compresses the spring, after the pressure release door is not pulled after the rope is broken, the pressure release door is pushed by the thrust generated by the spring to be opened in an accelerating way, and the opening of the pressure release bin is opened more quickly to release pressure.
Additional features and advantages of the utility model will be set forth in the description which follows, or may be learned by practice of the utility model.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a pressure relief vent according to the present utility model;
FIG. 3 is an enlarged schematic view of the structure A of FIG. 1 in accordance with the present utility model;
fig. 4 is an enlarged schematic view of the structure at B of fig. 2 in the present utility model.
The reference numerals are explained as follows:
1. a cabinet body; 2. a pressure relief bin; 3. a pressure relief door; 4. a pressure relief port; 6. a tether post; 7. a groove; 8. a rope; 9. rope cutter; 10. an anti-falling block; 11. a piston push plate; 12. a mounting plate; 13. a sliding sleeve; 14. a slide bar; 15. a top block; 16. a spring; 17. and (5) supporting the lugs under stress.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are all based on fig. 1 and are merely for convenience in describing the present utility model and to simplify the description, rather than to indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1-4, a pressure relief device of a high-voltage switch cabinet comprises a cabinet body 1, wherein at least one pressure relief mechanism for pressure relief is arranged on the outer side of the side wall of the cabinet body 1;
the decompression mechanism mainly comprises a decompression bin 2, a decompression door 3, a rope tying column 6 and a rope 8, wherein a decompression opening 4 is formed in the side wall of the cabinet body 1, the decompression bin 2 is fixed at the position of the decompression opening 4 in the outer side of the side wall of the cabinet body 1, the decompression bin 2 is of a hollow structure with two opposite openings, the first opening of the decompression bin 2 is communicated with the decompression opening 4 in a sealing manner, the second opening of the decompression bin 2 is provided with the openable or closable decompression door 3, the decompression bin 2 and the decompression door 3 are respectively provided with the rope tying column 6, and the two rope tying columns 6 are connected through the breakable rope 8.
In addition, the rope 8 has such a strength that it can be broken when the pressure release door 3 is impacted by high pressure gas.
Specifically, when the cabinet body 1 is internally short-circuited and other conditions, high-pressure gas is generated, the high-pressure gas enters the inner cavity of the pressure relief bin 2 through the pressure relief opening 4, then the pressure relief door 3 is impacted, the pressure relief door 3 pulls the ropes 8 for pulling the two rope fastening columns 6 to break, and after the ropes 8 are not pulled, the high-pressure gas in the cabinet body 1 pushes the pressure relief door 3 to open the opening of the pressure relief bin 2, so that the high-pressure gas is discharged.
Preferably, the pressure release mechanism further comprises a rope cutter 9 and a piston push plate 11, the bottom end of the pressure release door 3 is connected with the pressure release bin 2 through a hinge, two rope tying posts 6 are respectively fixed at the tops of the pressure release bin 2 and the pressure release door 3, a through hole for the rope cutter 9 to penetrate is formed in the top of the pressure release bin 2 below the rope 8, the rope cutter 9 is vertically arranged, the top end of the rope cutter 9 is a cutting edge, the bottom end of the rope cutter 9 is fixed to the piston push plate 11, a part of the rope cutter 9 extending out of the pressure release bin 2 is fixedly provided with an anti-falling block 10 for preventing the rope cutter 9 from falling off, the piston push plate 11 is horizontally arranged in the pressure release bin 2, and the piston push plate 11 is movably connected with the pressure release bin 2, the pressure release door 3 and the outer side wall of the cabinet body 1 positioned in the pressure release bin 2.
Specifically, when the conditions such as short circuit happen in the cabinet body 1, high-pressure gas is generated, the high-pressure gas enters the inner cavity of the pressure relief bin 2 through the pressure relief opening 4, then the piston push plate 11 is impacted, the piston push plate 11 drives the rope cutter 9 to ascend, then the rope cutter 9 cuts off the rope 8 in the ascending process, after the traction of the rope 8 is not carried out, the high-pressure gas in the cabinet body 1 pushes the pressure relief door 3 to open the opening of the pressure relief bin 2, and therefore the high-pressure gas is discharged.
Preferably, the pressure release mechanism further comprises a stress supporting lug 17, at least one stress supporting lug 17 is fixedly arranged on the edge of the pressure release door 3, and at least one spring push rod assembly for pushing the stress supporting lug 17 is arranged on the outer side of the side wall of the cabinet body 1.
Specifically, when the state that pressure release door 3 is closed, pressure release door 3 presses the spring push rod subassembly, makes the compression of spring push rod subassembly behind rope 8 fracture pressure release door 3 not pull the back, and the thrust that spring push rod subassembly resumes the production promotes pressure release door 3 and opens with higher speed, realizes that the opening of faster opening pressure release storehouse 2 is released.
Preferably, the spring push rod assembly mainly comprises a mounting plate 12, a sliding sleeve 13, a sliding rod 14, a top block 15 and a spring 16, wherein the mounting plate 12 is fixed on the outer side of the side wall of the cabinet body 1, the sliding sleeve 13 is fixed on the mounting plate 12, the sliding rod 14 is in sliding fit in the mounting plate 12, the top block 15 is fixed at one end of the sliding rod 14, which is away from the sliding sleeve 13, a spring 16 sleeved on the sliding sleeve 13 and the sliding rod 14 is arranged between the top block 15 and the mounting plate 12, and the top block 15 is in contact with the stress supporting lugs 17.
Specifically, when the pressure release door 3 is in a closed state, the pressure release door 3 presses the top block 15, so that the top block 15 compresses the spring 16, after the pressure release door 3 is not pulled after the rope 8 is broken, the spring 16 restores the generated thrust to push the pressure release door 3 to accelerate to open, and the opening of the pressure release bin 2 is opened faster to release pressure.
Preferably, the outside of the tether post 6 is provided with a recess 7.
Specifically, when the rope 8 is arranged on the rope tying column 6, the rope 8 can be arranged at the inner side of the groove 7, so that the rope 8 is prevented from falling off from the rope tying column 6.
Preferably, the rope 8 is one of nylon rope, synthetic fiber rope and plastic rope.
In particular, the rope 8 is a breakable rope.
In the structure, when the conditions such as short circuit happen in the cabinet body 1, high-pressure gas is generated, the high-pressure gas enters the inner cavity of the pressure relief bin 2 through the pressure relief opening 4, and then the piston push plate 11 is impacted, the piston push plate 11 drives the rope cutter 9 to ascend, then the rope cutter 9 cuts off the rope 8 in the ascending process, after the traction of the rope 8 is not carried out, the high-pressure gas in the cabinet body 1 pushes the pressure relief door 3 to open the opening of the pressure relief bin 2, so that the high-pressure gas is discharged, when the pressure relief door 3 is in a closed state, the pressure relief door 3 presses the top block 15, the top block 15 compresses the spring 16, after the pressure relief door 3 is not pulled after the rope 8 is broken, the spring 16 is restored to generate thrust to push the pressure relief door 3 to be opened in an accelerating manner, and the opening of the pressure relief bin 2 is opened more quickly.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a high tension switchgear pressure relief device, includes the cabinet body (1), its characterized in that: at least one pressure relief mechanism for relieving pressure is arranged on the outer side of the side wall of the cabinet body (1);
the pressure release mechanism mainly comprises pressure release storehouse (2), pressure release door (3), tether post (6) and rope (8), pressure release mouth (4) have been seted up to the lateral wall of the cabinet body (1), the lateral wall outside of the cabinet body (1) is located place fixed with pressure release storehouse (2) of pressure release mouth (4), pressure release storehouse (2) are relative two open hollow structure, pressure release storehouse (2) first face open department and pressure release mouth (4) sealed intercommunication, pressure release storehouse (2) second face open department is provided with openable or closed pressure release door (3), be fixed with on pressure release storehouse (2) and the pressure release door (3) respectively and tether post (6), two tether posts (6) are connected through breakable rope (8).
2. The pressure relief device for a high voltage switchgear as claimed in claim 1, wherein: the pressure release mechanism further comprises a rope cutting knife (9) and a piston push plate (11), the bottom end of the pressure release door (3) is connected with the pressure release bin (2) through a hinge, two rope tying columns (6) are respectively fixed at the tops of the pressure release bin (2) and the pressure release door (3), the top of the pressure release bin (2) is located below the rope (8) and provided with a perforation for the rope cutting knife (9) to pass through, the rope cutting knife (9) is vertically arranged, the top end of the rope cutting knife (9) is a cutting edge, the bottom end of the rope cutting knife (9) is fixed to the piston push plate (11), a part, extending out of the pressure release bin (2), of the rope cutting knife (9) is fixedly provided with an anti-falling block (10) for preventing the rope cutting knife (9) from falling off, the piston push plate (11) is horizontally arranged in the pressure release bin (2), and the piston push plate (11) is movably connected with the outer side wall of the pressure release bin (2), the pressure release door (3) and a side wall of a cabinet body (1) located in the pressure release bin (2).
3. A high voltage switchgear pressure relief device as claimed in claim 1 or 2, wherein: the pressure release mechanism further comprises a stress supporting lug (17), at least one stress supporting lug (17) is fixedly arranged at the edge of the pressure release door (3), and at least one spring push rod assembly for pushing the stress supporting lug (17) is arranged on the outer side of the side wall of the cabinet body (1).
4. A high voltage switchgear pressure relief device as claimed in claim 3, wherein: the spring push rod assembly mainly comprises a mounting plate (12), a sliding sleeve (13), a sliding rod (14), a top block (15) and a spring (16), wherein the mounting plate (12) is fixed on the outer side of the side wall of the cabinet body (1), the sliding sleeve (13) is fixed on the mounting plate (12), the sliding rod (14) is in sliding fit with the mounting plate (12), the top block (15) is fixed at one end, deviating from the sliding sleeve (13), of the sliding rod (14), the spring (16) sleeved on the sliding sleeve (13) and the sliding rod (14) is arranged between the top block (15) and the mounting plate (12), and the top block (15) is in contact with a stress supporting lug (17).
5. A high voltage switchgear pressure relief device as claimed in claim 1 or 2, wherein: the outside of the rope fastening column (6) is provided with a groove (7).
6. A high voltage switchgear pressure relief device as claimed in claim 1 or 2, wherein: the rope (8) is one of nylon rope, synthetic fiber rope and plastic rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320089224.9U CN219247216U (en) | 2023-01-31 | 2023-01-31 | Pressure relief device of high-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320089224.9U CN219247216U (en) | 2023-01-31 | 2023-01-31 | Pressure relief device of high-voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219247216U true CN219247216U (en) | 2023-06-23 |
Family
ID=86806209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320089224.9U Active CN219247216U (en) | 2023-01-31 | 2023-01-31 | Pressure relief device of high-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219247216U (en) |
-
2023
- 2023-01-31 CN CN202320089224.9U patent/CN219247216U/en active Active
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