CN202142785U - Pressure relief device of switch cabinet - Google Patents
Pressure relief device of switch cabinet Download PDFInfo
- Publication number
- CN202142785U CN202142785U CN201120285194U CN201120285194U CN202142785U CN 202142785 U CN202142785 U CN 202142785U CN 201120285194 U CN201120285194 U CN 201120285194U CN 201120285194 U CN201120285194 U CN 201120285194U CN 202142785 U CN202142785 U CN 202142785U
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- cabinet
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- frame
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Abstract
The utility model relates to the technical field of a pressure relief device of a switch cabinet, in particular to the pressure relief device of the switch cabinet, which comprises a cabinet body, a top cover plate and a top lining support. A cabinet top left flange facing the right of the cabinet body is arranged at the left portion of the top of the cabinet body, and a cabinet top right flange facing the left of the cabinet body is arranged at the right portion of the top of the cabinet body. A top cover fixing edge is arranged at the left portion of the top cover plate and fixedly arranged at the left portion of the left flange of the cabinet top through a safe fixing device invalid under abnormal high pressure, and the right portion of the top cover plate is arranged at the right portion of the right flange of the cabinet top through a hinge. The top lining support is fixed on the cabinet body below the top cover plate, at least one pressure relief hole is arranged at the upper portion of the top lining support, and the lower end of the left portion of the top lining support is provided with a lining support left edge facing the right of the top lining support. The pressure relief device of the switch cabinet is reasonable and compact in structure and convenient to use. By means of a double-layer design of the top cover plate and the top lining support, dust in outside environment is prevented from entering by the top cover plate, the top lining support bears upper pressure, simultaneously exhaust of high temperature and high pressure air is facilitated, and protective capacity and safety performance of the cabinet body are greatly improved.
Description
Technical field
the utility model relates to switch cubicle decompression protection device technique field, is a kind of switch cubicle pressure relief device.
Background technology
Under
present indoor switch cubicle internal short-circuit failure condition; Because the violent burning of high pressure tens kilo-ampere heavy currents produces high temperature and high pressure gas; In the switch cubicle is the space of narrow and small sealing; For preventing the blast of expanding, major measure adopts the top that pressure relief device is set and discharges gas in the cabinet, makes that the pressure in the switch cubicle is minimized lsafety level.The main project organization of pressure relief device mainly divides two types both at home and abroad: the one, and at top blind flange one end hinge is set and fixes; The other end adopts the bakelite screw; Under the bulbs of pressure of high-pressure gas, promote top cover and back down the bakelite screw, lamina tecti is raised to hinge side, simultaneously combustion gas is discharged; It is blocked up that the problem of its existence is that lamina tecti can not design; Avoiding the bulbs of pressure can't in time back down the bakelite screw, but a little less than so making the lamina tecti weight capacity very, the maintainer very easily makes the cover plate gross distortion on the cabinet top when trampling; Degree of protection is lower simultaneously; This position can't be provided with the shutoff measure of sealing joint strip and so at cover plate frame place, is prone to make dust to get into high pressure compartment pollution high voltage electric conductor, influences built-in electrical insulation intensity; The 2nd, on the cabinet top top cover passage of increasing is set, can open inner baffle in channel bottom and the setting of switch cabinet junction, draw outside channel roof and other vicinity cabinet pressure release passage UNICOMs; Netted outlet is established in the end, and so double-layer cover plate has reduced dust entering probability, and the inner baffle of pressure release simultaneously can be according to switch cubicle internal fault parameter adjustment structural thickness and intensity; This scheme makes switch cubicle integral body increase, and under the situation of substation control buildings space, city growing tension, applicable surface is narrower; And the inspection switch cabinet is climbed to the top of a mountain comparatively difficult; Need consider contiguous cabinet pressure relief device influence simultaneously, complex structure adopts less simultaneously.
Summary of the invention
the utility model provides a kind of switch cubicle pressure relief device, has overcome the deficiency of above-mentioned prior art, and it can solve effectively that existing indoor switch cubicle exists wastes time and energy, efficiency of construction is lower, have the problem of potential safety hazard.
The technical scheme of
the utility model realizes through following measure: a kind of switch cubicle pressure relief device comprises cabinet, lamina tecti and roof liner frame; Cabinet top left part has towards right-hand cabinet of cabinet and pushes up left flange; Cabinet top right part has the cabinet towards the cabinet left to push up right flange; The left part of lamina tecti has the top cover fixed edge; The top cover fixed edge is fixedly mounted on cabinet through the release binding that can under abnormal pressure, lose efficacy and pushes up left flange left part, and the lamina tecti right part is installed in cabinet through hinge and pushes up on the right flange right part; Be fixed with the roof liner frame on the cabinet of lamina tecti below; Roof liner frame top has and is no less than one relief hole; The left part lower end of roof liner frame has towards right-hand lining frame left border of roof liner frame; There is the lining frame right border towards roof liner frame left the right part lower end of roof liner frame, and lining frame left border is fixedly mounted on cabinet through left set bolt and pushes up on the left flange right part, and lining frame right border is fixedly mounted on cabinet through right set bolt and pushes up on the right flange left part.
Be to the further optimization of above-mentioned utility model technical scheme below or/and improve:
above-mentioned release binding can comprise bakelite screw and jam nut; Cabinet pushes up left flange left part has safe lockhole; There is the top cover lock hole position of corresponding safe lockhole on the top cover fixed edge; The head of screw lower surface of bakelite screw is pressed on the top cover fixed edge upper surface, and the screw rod of bakelite screw from top to bottom passes top cover lock hole and safe lockhole successively and extends cabinet and pushes up left flange below, and the screw rod lower end of bakelite screw is installed with jam nut.
above-mentioned roof liner frame can comprise lining frame-saw and lining top board; The left part lower end of lining frame-saw and right part lower end have lining frame left border and lining frame right border respectively; Upper-end front, rear portion, left part and the right part of lining frame-saw has lining frame flanging respectively and forms rectangular opening; The middle part of lining top board is distributed with relief hole, and lining edge, top board lower end is fixedly connected on lining frame flanging upper end through screw or welding.
above-mentioned cabinet pushes up left flange right part can have the upper frame left side installing hole that is no less than two; Cabinet pushes up right flange left part can have the right installing hole of the upper frame that is no less than two; There is a left side lining edge through hole position of corresponding upper frame left side installing hole on the lining frame left border, and there is right lining edge through hole the position of the right installing hole of corresponding upper frame on the lining frame right border; Lining frame left border is fixedly mounted on cabinet through left set bolt, left side lining edge through hole, upper frame left side installing hole and locking nut and pushes up left flange right part, and lining frame right border is fixedly mounted on cabinet through right set bolt, right lining edge through hole, the right installing hole of upper frame and locking nut and pushes up right flange left part.
the utility model reasonable and compact in structure; Easy to use; It is through the bilayer setting of lamina tecti and roof liner frame; Intercept the external environment dust by lamina tecti and get into, bear top pressure by the roof liner frame and be convenient to the high temperature and high pressure gas discharge simultaneously, improved the protective capacities and the security performance of cabinet greatly.
Description of drawings
accompanying drawing 1 is looked the sectional structure sketch map for the master of the utility model most preferred embodiment.
accompanying drawing 2 is the plan structure sketch map of accompanying drawing 1.
Coding in
accompanying drawing is respectively: 1 is cabinet, and 2 is lamina tecti, and 3 for cabinet pushes up left flange, and 4 for cabinet pushes up right flange, and 5 is the top cover fixed edge; 6 is hinge, and 7 is relief hole, and 8 are lining frame left border, and 9 are lining frame right border, and 10 is left set bolt; 11 is right set bolt, and 12 is the bakelite screw, and 13 is jam nut, and 14 is safe lockhole, and 15 is the top cover lock hole; 16 are the lining frame-saw, and 17 are the lining top board, and 18 are lining frame flanging, and 19 is rectangular opening; 20 is upper frame left side installing hole, and 21 is the right installing hole of upper frame, and 22 is left side lining edge through hole, and 23 is right lining edge through hole.
Embodiment
the utility model does not receive the restriction of following embodiment, can confirm concrete execution mode according to the technical scheme and the actual conditions of the utility model.
are in the utility model; For the ease of describing; The description of the relative position relation of each parts all is to describe according to the Butut mode of Figure of description, as: the position relation of upper and lower, left and right etc. is what to confirm according to the Butut direction of Figure of description.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
like accompanying drawing 1, shown in 2, this switch cubicle pressure relief device comprises cabinet 1, lamina tecti 2 and roof liner frame; Cabinet 1 top left part has towards the cabinet 1 right-hand cabinet and pushes up left flange 3; Cabinet 1 top right part has the cabinet towards cabinet 1 left to push up right flange 4; The left part of lamina tecti 2 has top cover fixed edge 5; Top cover fixed edge 5 is fixedly mounted on cabinet through the release binding that can under abnormal pressure, lose efficacy and pushes up left flange 3 left parts, and lamina tecti 2 right parts are installed in cabinet through hinge 6 and push up on right flange 4 right parts; Be fixed with the roof liner frame on the cabinet 1 of lamina tecti 2 belows; The relief hole 7 that is no less than one is arranged at roof liner frame top; The left part lower end of roof liner frame has towards right-hand lining frame left border 8 of roof liner frame; There is the lining frame right border 9 towards roof liner frame left the right part lower end of roof liner frame, and lining frame left border 8 is fixedly mounted on cabinet through left set bolt 10 and pushes up on left flange 3 right parts, and lining frame right border 9 is fixedly mounted on cabinet through right set bolt 11 and pushes up on right flange 4 left parts.Lamina tecti 2 is fixed on cabinet through release binding and pushes up on the left flange 3; Can dust effectively be intercepted to satisfy the requirement of degree of protection; Release binding inefficacy under the short trouble situation occurring, make high temperature and high pressure gas push lamina tecti 2 open, relief hole 7 can dispel the heat and decompression protection cabinet 1; Reduced the temperature of discharging gas, reduced influence surrounding environment.The roof liner top of the trellis supports lamina tecti 2, guarantees that the maintainer tramples the Shi Buhui distortion.
Can according to actual needs above-mentioned switch cubicle pressure relief device be done further to optimize or/and improve:
are like accompanying drawing 1, shown in 2; Release binding comprises bakelite screw 12 and jam nut 13; Cabinet pushes up left flange 3 left parts has safe lockhole 14; There is top cover lock hole 15 position of corresponding safe lockhole 14 on the top cover fixed edge 5; The head of screw lower surface of bakelite screw 12 is pressed on top cover fixed edge 5 upper surfaces, and the screw rod of bakelite screw 12 from top to bottom passes top cover lock hole 15 and safe lockhole 14 successively and extends cabinet and pushes up left flange 3 belows, and the screw rod lower end of bakelite screw 12 is installed with jam nut 13.
are like accompanying drawing 1, shown in 2; The roof liner frame comprises lining frame-saw 16 and lining top board 17; The left part lower end of lining frame-saw 16 and right part lower end have lining frame left border 8 and lining frame right border 9 respectively; Upper-end front, rear portion, left part and the right part of lining frame-saw 16 has lining frame flanging 18 respectively and forms rectangular opening 19, and the middle part of lining top board 17 is distributed with relief hole 7, and lining edge, top board 17 lower end is fixedly connected on lining frame flanging 18 upper ends through screw or welding.
are like accompanying drawing 1, shown in 2; Cabinet pushes up left flange 3 right parts has the upper frame left side installing hole 20 that is no less than two; Cabinet pushes up right flange 4 left parts has the right installing hole 21 of the upper frame that is no less than two; There is left side lining edge through hole 22 position of corresponding upper frame left side installing hole 20 on the lining frame left border 8, and there is right lining edge through hole 23 position of the right installing hole 21 of corresponding upper frame on the lining frame right border 9; Lining frame left border 8 is fixedly mounted on cabinet through left set bolt 10, left side lining edge through hole 22, upper frame left side installing hole 20 and locking nut and pushes up left flange 3 right parts, and lining frame right border 9 is fixedly mounted on cabinet through right set bolt 11, right lining edge through hole 23, the right installing hole 21 of upper frame and locking nut and pushes up right flange 4 left parts.
above technical characterictic has constituted the most preferred embodiment of the utility model, and it has stronger adaptability and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The use of the utility model most preferred embodiment: under the situation that in cabinet, breaks down, at first, the high pressure-temperature gas of burning upwards expands and blows to lining top board 17; Secondly, under the obstruct that serves as a contrast top board 17, filtration, the strength reduction of high pressure-temperature gas, temperature lowers, and passes relief hole 7 and blows to lamina tecti 2; Then, the screw rod of bakelite screw 12 ruptures under the effect of strong thrust, and top cover fixed edge 5 pushes up left flange 3 with cabinet to be separated; At last, lamina tecti 2 upwards overturns and opens around hinge 6, and high pressure-temperature gas sprays to cabinet 1 outside from relief hole 7, realizes safety relief.
Claims (5)
1. a switch cubicle pressure relief device is characterized in that comprising cabinet, lamina tecti and roof liner frame; Cabinet top left part has towards right-hand cabinet of cabinet and pushes up left flange; Cabinet top right part has the cabinet towards the cabinet left to push up right flange; The left part of lamina tecti has the top cover fixed edge; The top cover fixed edge is fixedly mounted on cabinet through the release binding that can under abnormal pressure, lose efficacy and pushes up left flange left part, and the lamina tecti right part is installed in cabinet through hinge and pushes up on the right flange right part; Be fixed with the roof liner frame on the cabinet of lamina tecti below; Roof liner frame top has and is no less than one relief hole; The left part lower end of roof liner frame has towards right-hand lining frame left border of roof liner frame; There is the lining frame right border towards roof liner frame left the right part lower end of roof liner frame, and lining frame left border is fixedly mounted on cabinet through left set bolt and pushes up on the left flange right part, and lining frame right border is fixedly mounted on cabinet through right set bolt and pushes up on the right flange left part.
2. switch cubicle pressure relief device according to claim 1; It is characterized in that release binding comprises bakelite screw and jam nut; Cabinet pushes up left flange left part has safe lockhole; There is the top cover lock hole position of corresponding safe lockhole on the top cover fixed edge; The head of screw lower surface of bakelite screw is pressed on the top cover fixed edge upper surface, and the screw rod of bakelite screw from top to bottom passes top cover lock hole and safe lockhole successively and extends cabinet and pushes up left flange below, and the screw rod lower end of bakelite screw is installed with jam nut.
3. switch cubicle pressure relief device according to claim 1 and 2; It is characterized in that the roof liner frame comprises lining frame-saw and lining top board; The left part lower end of lining frame-saw and right part lower end have lining frame left border and lining frame right border respectively; Upper-end front, rear portion, left part and the right part of lining frame-saw has lining frame flanging respectively and forms rectangular opening, and the middle part of lining top board is distributed with relief hole, and lining edge, top board lower end is fixedly connected on lining frame flanging upper end through screw or welding.
4. switch cubicle pressure relief device according to claim 1 and 2; It is characterized in that cabinet pushes up left flange right part the upper frame left side installing hole that is no less than two is arranged; Cabinet pushes up right flange left part has the right installing hole of the upper frame that is no less than two; There is a left side lining edge through hole position of corresponding upper frame left side installing hole on the lining frame left border, and there is right lining edge through hole the position of the right installing hole of corresponding upper frame on the lining frame right border; Lining frame left border is fixedly mounted on cabinet through left set bolt, left side lining edge through hole, upper frame left side installing hole and locking nut and pushes up left flange right part, and lining frame right border is fixedly mounted on cabinet through right set bolt, right lining edge through hole, the right installing hole of upper frame and locking nut and pushes up right flange left part.
5. switch cubicle pressure relief device according to claim 3; It is characterized in that cabinet pushes up left flange right part the upper frame left side installing hole that is no less than two is arranged; Cabinet pushes up right flange left part has the right installing hole of the upper frame that is no less than two; There is a left side lining edge through hole position of corresponding upper frame left side installing hole on the lining frame left border, and there is right lining edge through hole the position of the right installing hole of corresponding upper frame on the lining frame right border; Lining frame left border is fixedly mounted on cabinet through left set bolt, left side lining edge through hole, upper frame left side installing hole and locking nut and pushes up left flange right part, and lining frame right border is fixedly mounted on cabinet through right set bolt, right lining edge through hole, the right installing hole of upper frame and locking nut and pushes up right flange left part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120285194U CN202142785U (en) | 2011-08-08 | 2011-08-08 | Pressure relief device of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120285194U CN202142785U (en) | 2011-08-08 | 2011-08-08 | Pressure relief device of switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202142785U true CN202142785U (en) | 2012-02-08 |
Family
ID=45553823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120285194U Expired - Fee Related CN202142785U (en) | 2011-08-08 | 2011-08-08 | Pressure relief device of switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202142785U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623920A (en) * | 2012-02-29 | 2012-08-01 | 长城电器集团有限公司 | Pressure relief device for low-voltage power distribution cabinet |
| CN103001139A (en) * | 2012-12-14 | 2013-03-27 | 广西银河迪康电气有限公司 | Pressure relief device for gas insulation switch device |
| CN104051964A (en) * | 2014-06-10 | 2014-09-17 | 国家电网公司 | GGD-type low pressure switch box top pressure relief device |
| CN105322451A (en) * | 2015-12-14 | 2016-02-10 | 重庆新大顺电器有限公司 | Voltage release device of electrical switch cabinet |
| CN110581446A (en) * | 2019-07-17 | 2019-12-17 | 许继集团有限公司 | Switch cabinet and pressure relief device thereof |
| CN110601020A (en) * | 2019-09-30 | 2019-12-20 | 上海置信电气非晶有限公司 | Low-voltage cabinet protection structure for prefabricated substation |
-
2011
- 2011-08-08 CN CN201120285194U patent/CN202142785U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623920A (en) * | 2012-02-29 | 2012-08-01 | 长城电器集团有限公司 | Pressure relief device for low-voltage power distribution cabinet |
| CN103001139A (en) * | 2012-12-14 | 2013-03-27 | 广西银河迪康电气有限公司 | Pressure relief device for gas insulation switch device |
| CN104051964A (en) * | 2014-06-10 | 2014-09-17 | 国家电网公司 | GGD-type low pressure switch box top pressure relief device |
| CN104051964B (en) * | 2014-06-10 | 2016-10-26 | 国家电网公司 | A kind of GGD type low-voltage distribution cabinet cabinet top pressure relief device |
| CN105322451A (en) * | 2015-12-14 | 2016-02-10 | 重庆新大顺电器有限公司 | Voltage release device of electrical switch cabinet |
| CN110581446A (en) * | 2019-07-17 | 2019-12-17 | 许继集团有限公司 | Switch cabinet and pressure relief device thereof |
| CN110601020A (en) * | 2019-09-30 | 2019-12-20 | 上海置信电气非晶有限公司 | Low-voltage cabinet protection structure for prefabricated substation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20170808 |