CN104051964A - GGD-type low pressure switch box top pressure relief device - Google Patents
GGD-type low pressure switch box top pressure relief device Download PDFInfo
- Publication number
- CN104051964A CN104051964A CN201410256276.6A CN201410256276A CN104051964A CN 104051964 A CN104051964 A CN 104051964A CN 201410256276 A CN201410256276 A CN 201410256276A CN 104051964 A CN104051964 A CN 104051964A
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- pressure relief
- relief plate
- distribution cabinet
- hasp
- cabinet
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- Gas-Insulated Switchgears (AREA)
Abstract
The invention provides a GGD-type low pressure switch box top pressure relief device which comprises a pressure relief plate arranged at a pressure relief port in the top of a switch box, the pressure relief plate is fixedly connected with the switch box through a buckle, and the pressure relief plate is provided with a plurality of mesh holes. According to the device, the pressure relief plate is provided with the mesh holes, high pressure gas in the switch box is partially exhausted from the mesh holes during pressure relief, instant pressure borne by the pressure relief plate can be reduced, the deformation probability of the pressure relief plate is reduced, the pressure relief plate is fixedly connected with the switch box through the buckle, fixation is firm, disassembling is convenient to achieve, the personal injury accident rate is reduced, the electrical equipment accident rate is reduced, and power supply reliability is improved.
Description
Technical field
The present invention relates to a kind of GGD type low-voltage distribution cabinet cabinet top pressure relief device.
Background technology
General power distribution cabinet or switch cubicle must configure pressure relief device, and existing pressure relief device mostly is a metallic plate covering at power distribution cabinet or switch cubicle pressure relief opening place, and this structure is generally metallic plate and directly covers in the groove at pressure relief opening place; Or a side of metallic plate is by pasting screw and power distribution cabinet or switch cubicle is fixed, opposite side is fixed by nylon screw and power distribution cabinet or switch cubicle, during pressure release, high-temperature gas in power distribution cabinet or switch cubicle makes metallic plate loosening the fusing of nylon screw, then the high-temperature gas in power distribution cabinet or switch cubicle is by metallic plate jack-up, and final high-temperature gas releases from pressure relief opening.There is following problem in said structure: 1, because metallic plate directly covers pressure relief opening, or adopt screw to connect, screw is easily loosening, GGD type low-voltage distribution cabinet is in unloading process, as hanging method mistake, steel wire rope cause cabinet gradient, in servicely encounter barrier aloft and cause tank leaning to add some crane operation person to operate reason and cause cabinet to rock seriously, these all may cause cabinet top pressure relief device web plate to drop aloft, to personal safety, bring serious hidden danger; 2, GGD type low-voltage distribution cabinet is in process in place, due to passage reason, makes cabinet fall cabinet current, in the process of falling cabinet, because direction is got wrong, usually makes cabinet top pressure relief device web plate from groove, split away off on the body of pounding people, particularly head; 3, GGD type low-voltage distribution cabinet is in spelling cabinet process, due to human factor overexert or cabinet one bogie side frame at channel-section steel, frame is not when channel-section steel for opposite side, these all may cause tank leaning, cabinet pressure relief device web plate is split away off from groove, pound on people's health particularly head; 4,, because pressure relief device web plate is very large at groove clearance, in the middle of in place, or cabinet is subject to very large percussion vibration, pressure relief device web plate one side is come off in groove, ride on 0.4kV bus, if checked and accepted, do not discover, during power transmission, due to 0.4kV busbar short-circuit, serious equipment breakdown will be caused; 5,, when adopting screw to connect, metallic plate is installed and is shirked equal inconvenience; 6,, after power distribution cabinet or switch cubicle pressure release, the nylon screw that also easily wire damages or is melted of the screwed hole on power distribution cabinet or switch cubicle blocks, and is difficult for installing new metallic plate; 7, after each power distribution cabinet or switch cubicle pressure release, metallic plate all can produce distortion, all needs the metallic plate that more renews at every turn, cause maintenance cost increase.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of GGD type low-voltage distribution cabinet cabinet top pressure relief device, by mesh is set on pressure relief plate, high pressure gas part during pressure release in power distribution cabinet is released from mesh, can reduce the instantaneous pressure that pressure relief plate is subject to, reduce the deformation probability of pressure relief plate, pressure relief plate is fixedly connected with by hasp with power distribution cabinet, fixation, convenient disassembly, can reduce human casualty accident rate, reduces electric equipment rate of failure and improve power supply reliability.
For solving above-mentioned existing technical problem, the present invention adopts following scheme: a kind of GGD type low-voltage distribution cabinet cabinet top pressure relief device, comprise the pressure relief plate that is arranged on pressure relief opening place, power distribution cabinet top, described pressure relief plate is fixedly connected with by hasp with power distribution cabinet, and described pressure relief plate has some mesh.
As preferably, the area of described mesh increases to the right successively from the left side of pressure relief plate.When there is power distribution cabinet or switch cubicle pressure release, because right side mesh is less, the impulsive force that this side pressure relief plate is subject to is larger, and this side first departs from power distribution cabinet, and it is controlled that pressure relief plate starts path, can reduce human casualty accident rate, reduce electric equipment rate of failure.
As preferably, described hasp comprises the first hasp and the second hasp, described the first hasp is positioned at the left side of pressure relief plate, described the second hasp is positioned at the right side of pressure relief plate, described the first hasp comprises pedestal and the eccentric shaft of switching on pedestal that is arranged on power distribution cabinet top, described eccentric shaft is fixedly connected with jug, described eccentric shaft is connected with the first coupler body, the second coupler body for hooking together with the first coupler body is installed on described pressure relief plate, described the second hasp comprises and is arranged on the rectangular of power distribution cabinet top, described have some circular holes and slotted hole on rectangular, described circular hole and slotted hole all run through rectangular upper and lower surface, described circular hole and slotted hole one by one one end of correspondence and slotted hole run through the sidewall of circular hole, the top of described slotted hole is narrower than bottom, the bottom surface of described pressure relief plate is provided with some and circular hole cylinder one to one, the bottom of described cylinder is connected with spheroid, the diameter of described spheroid is greater than the radial diameter of cylinder, the diameter of described spheroid is greater than the top width of slotted hole and is less than the bottom width of slotted hole, described cylinder and spheroid are working of plastics.When pressure relief plate is installed, first spheroid is stretched into circular hole one to one, now the first coupler body is corresponding with the second coupler body, pull handle, the first coupler body pulls the second coupler body left, and pressure relief plate is slightly moved to the left, spheroid enters in slotted hole, pressure relief plate fixation, and during pressure release, cylinder or spheroid are softened by high-temperature gas, simultaneously because the impulsive force on right side is relatively large, cylinder and spheroid rupture fast, and pressure relief plate starts and is able to pressure release, in whole process, it is short that pressure relief plate starts the time, not yielding.
As preferably, on described pressure relief plate, be hinged with some cover plates, described cover plate and mesh are corresponding and cover on mesh one by one.Cover plate can play blocks dust and from mesh, enter the situation of power distribution cabinet.
Beneficial effect:
A kind of GGD type low-voltage distribution cabinet cabinet top pressure relief device that the present invention adopts technique scheme to provide, by mesh is set on pressure relief plate, high pressure gas part during pressure release in power distribution cabinet is released from mesh, can reduce the instantaneous pressure that pressure relief plate is subject to, reduce the deformation probability of pressure relief plate, pressure relief plate is fixedly connected with by hasp with power distribution cabinet, fixation, convenient disassembly; Reduce human casualty accident rate, reduced again electric equipment rate of failure, improved power supply reliability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the enlarged drawing at A-A place in Fig. 1;
Fig. 3 is the enlarged drawing at B-B place in Fig. 1;
Fig. 4 is rectangular structural representation.
Embodiment
As shown in Figures 1 to 4, a kind of GGD type low-voltage distribution cabinet cabinet top pressure relief device, comprises the pressure relief plate 2 that is arranged on power distribution cabinet 1 pressure relief opening place, cabinet top, and pressure relief plate 2 is fixedly connected with by hasp with power distribution cabinet 1, and pressure relief plate 2 has some mesh 21.The area of mesh 21 increases to the right successively from the left side of pressure relief plate 2.Hasp comprises the first hasp 31 and the second hasp, the first hasp 31 is positioned at the left side of pressure relief plate 2, the second hasp is positioned at the right side of pressure relief plate 2, the first hasp 31 comprises pedestal 311 and the eccentric shaft 312 of switching on pedestal 311 that is arranged on power distribution cabinet 1 cabinet top, eccentric shaft 312 is fixedly connected with jug 313, eccentric shaft 312 is connected with the first coupler body 314, the second coupler body 22 for hooking together with the first coupler body 314 is installed on pressure relief plate 2, the second hasp comprises and is arranged on rectangular 321 of power distribution cabinet 1 cabinet top, on rectangular 321, there is some circular holes 322 and slotted hole 323, circular hole 322 and slotted hole 323 all run through rectangular 321 upper and lower surface, circular hole 322 and slotted hole 323 one by one one end of correspondence and slotted hole 323 run through the sidewall of circular hole 322, the top of slotted hole 323 is narrower than bottom, the bottom surface of pressure relief plate 2 is provided with some and circular hole 322 cylinder 23 one to one, the bottom of cylinder 23 is connected with spheroid 24, the diameter of spheroid 24 is greater than the radial diameter of cylinder 23, the diameter of spheroid 24 is greater than the top width of slotted hole 323 and is less than the bottom width of slotted hole 323, cylinder 23 and spheroid 24 are working of plastics.On pressure relief plate 2, be hinged with some cover plates 3, cover plate 3 and mesh 21 are corresponding and cover on mesh 21 one by one.
Claims (4)
1. a GGD type low-voltage distribution cabinet cabinet top pressure relief device, comprise the pressure relief plate (2) that is arranged on pressure relief opening place, power distribution cabinet (1) cabinet top, it is characterized in that: described pressure relief plate (2) is fixedly connected with by hasp with power distribution cabinet (1), and described pressure relief plate (2) has some mesh (21).
2. a kind of GGD type low-voltage distribution cabinet cabinet according to claim 1 top pressure relief device, is characterized in that: the area of described mesh (21) increases to the right successively from the left side of pressure relief plate (2).
3. a kind of GGD type low-voltage distribution cabinet cabinet according to claim 2 top pressure relief device, it is characterized in that: described hasp comprises the first hasp (31) and the second hasp, described the first hasp (31) is positioned at the left side of pressure relief plate (2), described the second hasp is positioned at the right side of pressure relief plate (2), described the first hasp (31) comprises pedestal (311) and the eccentric shaft (312) of switching on pedestal (311) that is arranged on power distribution cabinet (1) cabinet top, described eccentric shaft (312) is fixedly connected with jug (313), described eccentric shaft (312) is connected with the first coupler body (314), the second coupler body (22) for hooking together with the first coupler body (314) is installed on described pressure relief plate (2), described the second hasp comprises rectangular (321) that are arranged on power distribution cabinet (1) cabinet top, on described rectangular (321), there is some circular holes (322) and slotted hole (323), described circular hole (322) and slotted hole (323) all run through the upper and lower surface of rectangular (321), described circular hole (322) and slotted hole (323) one by one one end of correspondence and slotted hole (323) run through the sidewall of circular hole (322), the top of described slotted hole (323) is narrower than bottom, the bottom surface of described pressure relief plate (2) is provided with some and circular hole (322) cylinder (23) one to one, the bottom of described cylinder (23) is connected with spheroid (24), the diameter of described spheroid (24) is greater than the radial diameter of cylinder (23), the diameter of described spheroid (24) is greater than the top width of slotted hole (323) and is less than the bottom width of slotted hole (323), described cylinder (23) and spheroid (24) are working of plastics.
4. according to a kind of GGD type low-voltage distribution cabinet cabinet top pressure relief device described in claim 1 or 2 or 3, it is characterized in that: on described pressure relief plate (2), be hinged with some cover plates (3), described cover plate (3) and mesh (21) are corresponding and cover on mesh (21) one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410256276.6A CN104051964B (en) | 2014-06-10 | 2014-06-10 | A kind of GGD type low-voltage distribution cabinet cabinet top pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410256276.6A CN104051964B (en) | 2014-06-10 | 2014-06-10 | A kind of GGD type low-voltage distribution cabinet cabinet top pressure relief device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104051964A true CN104051964A (en) | 2014-09-17 |
| CN104051964B CN104051964B (en) | 2016-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410256276.6A Active CN104051964B (en) | 2014-06-10 | 2014-06-10 | A kind of GGD type low-voltage distribution cabinet cabinet top pressure relief device |
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| Country | Link |
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| CN (1) | CN104051964B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233239A (en) * | 2017-12-21 | 2018-06-29 | 方晓妹 | A kind of high pressure equipment for power transmission and distribution pressure relief system |
| CN108292830A (en) * | 2015-12-02 | 2018-07-17 | 三菱电机株式会社 | Gas-insulated switchgear device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07303311A (en) * | 1994-04-30 | 1995-11-14 | Nissin Electric Co Ltd | Pressure relief device for gas-filled switchgear |
| CN201927930U (en) * | 2010-12-08 | 2011-08-10 | 河北电力设备厂 | Pressure relief device |
| CN202142785U (en) * | 2011-08-08 | 2012-02-08 | 新疆昆仑电气有限公司 | Pressure relief device of switch cabinet |
| CN202217958U (en) * | 2011-09-06 | 2012-05-09 | 许继集团有限公司 | Gas pressure automatic releasing device for DC switch equipment |
| CN203850652U (en) * | 2014-06-10 | 2014-09-24 | 国家电网公司 | GGD type low voltage power distribution cabinet top pressure relief device |
-
2014
- 2014-06-10 CN CN201410256276.6A patent/CN104051964B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07303311A (en) * | 1994-04-30 | 1995-11-14 | Nissin Electric Co Ltd | Pressure relief device for gas-filled switchgear |
| CN201927930U (en) * | 2010-12-08 | 2011-08-10 | 河北电力设备厂 | Pressure relief device |
| CN202142785U (en) * | 2011-08-08 | 2012-02-08 | 新疆昆仑电气有限公司 | Pressure relief device of switch cabinet |
| CN202217958U (en) * | 2011-09-06 | 2012-05-09 | 许继集团有限公司 | Gas pressure automatic releasing device for DC switch equipment |
| CN203850652U (en) * | 2014-06-10 | 2014-09-24 | 国家电网公司 | GGD type low voltage power distribution cabinet top pressure relief device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108292830A (en) * | 2015-12-02 | 2018-07-17 | 三菱电机株式会社 | Gas-insulated switchgear device |
| CN108292830B (en) * | 2015-12-02 | 2021-02-09 | 三菱电机株式会社 | Gas insulated switchgear |
| CN108233239A (en) * | 2017-12-21 | 2018-06-29 | 方晓妹 | A kind of high pressure equipment for power transmission and distribution pressure relief system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104051964B (en) | 2016-10-26 |
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