CN101794972B - Quick self-resetting type pressure relief mechanism of direct-current switch cabinet - Google Patents
Quick self-resetting type pressure relief mechanism of direct-current switch cabinet Download PDFInfo
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- CN101794972B CN101794972B CN201010122326.3A CN201010122326A CN101794972B CN 101794972 B CN101794972 B CN 101794972B CN 201010122326 A CN201010122326 A CN 201010122326A CN 101794972 B CN101794972 B CN 101794972B
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- pressure relief
- switch cabinet
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- current switch
- doorframe
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Abstract
The invention belongs to power transmission and distribution equipment and relates to a quick self-resetting type pressure relief mechanism of a direct-current switch cabinet, which is used in the direct-current switch cabinet. The quick self-resetting type pressure relief mechanism of the direct-current switch cabinet comprises a rectangular doorframe installed at the top of a high-pressure chamber of the switch cabinet, wherein the middle part of the rectangular doorframe is provided with a transverse beam dividing the doorframe into two pressure relief passages, a cover plate of a valve is respectively covered on each of the two pressure relief passages, the edges of the outer sides of the cover plates of the two valves are articulated with the doorframe by hinges, and the edges of the inner sides of the cover plates of the two valves are both lapped on the transverse beam at the middle part. The invention has simple structure and reliable motion. Because of adopting a valve type pressure relief structure, the invention can ensure that dust can not enter the direct-current switch cabinet when in a normal state, enhances the protection capability of the direct-current switch cabinet and can also ensure that the valves can be quickly opened for pressure relief when the internal pressure is larger, and the cover plates of the valves can also be automatically reset to an original position under the action of gravity after pressure relief.
Description
Technical field
The invention belongs to equipment for power transmission and distribution, relate to a kind of for the quick self-resetting type pressure relief mechanism of direct-current switch cabinet in direct-current switch cabinet.
Background technology
The effect of switch cubicle hyperbaric chamber pressure relief device be short-circuited at high-tension switch cabinet, the fault such as arcing, when causing hyperbaric chamber temperature and air pressure inside sharply to raise, pressure can be gushed fast, ensures the safety of equipment and personnel.Existing direct-current switch cabinet and the pressure release of high-tension switch cabinet hyperbaric chamber generally adopt the pattern of web plate pressure release.There is a lot of problem in web plate pressure release, first owing to web plate having larger mesh, thus protective capacities is very low, and the dust of suspension and humid air can directly enter in hyperbaric chamber, can have influence on the fail safe of electrical operation for a long time; Secondly web plate relief mode all adopts bolt (or nylon bolt) to fix, when there is short circuit or fault in circuit, circuit breaker trip produces very strong electric arc and very large energy, high pressure indoor gas sharply expands, wash web plate open cabinet, web plate can bring insecurity to surrounding people by gross distortion simultaneously; Need staff to reinstall after web plate is rushed to open, workload is comparatively large and maintenance is inconvenient.
Summary of the invention
Technical problem to be solved by this invention is, the quick self-resetting type pressure relief mechanism of direct-current switch cabinet providing that a kind of structure is simple, protective capacities is strong, can automatically recover after pressure release.
Quick self-resetting type pressure relief mechanism of direct-current switch cabinet of the present invention includes the rectangle doorframe that is arranged on top, switch cubicle hyperbaric chamber, a crossbeam is provided with in the middle part of rectangle doorframe, doorframe is divided into two pressure release passages, two pressure release passages are stamped a valve cover plate respectively, the outer ledge of two valve cover plates and doorframe are by hinge, and the inside edge of two valve cover plates is all overlapped on the crossbeam at middle part.
Described valve cover plate outer ledge, from the installation site of hinge, also has one section of cover plate extension extended laterally.
The cross section of described crossbeam is in " U-shaped ", and the edge that valve cover plate and crossbeam overlap simultaneously has reclinate flanging, and described flanging is inserted in " U-shaped " notch on crossbeam.
Structure of the present invention is simple, reliable in action, owing to adopting the pressure relief of shutter-type, under can ensureing normal condition, dust cannot enter, improve its protective capacities, also can ensure that valve can open pressure release rapidly when internal pressure is larger, after pressure release, valve cover plate can set back under gravity automatically simultaneously.
Accompanying drawing explanation
Fig. 1 is front cross-sectional structural representation of the present invention;
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Embodiment
As shown in the figure, this quick self-resetting type pressure relief mechanism of direct-current switch cabinet includes the rectangle doorframe 1 that is arranged on top, switch cubicle hyperbaric chamber, doorframe is divided into two pressure release passages by the crossbeam 2 in the middle part of rectangle doorframe, two pressure release passages are stamped a valve cover plate 3 respectively, the outer ledge of two valve cover plates 3 and doorframe 1 cut with scissors 4 by hinge and connect, and the inside edge of two valve cover plates is overlapped on the crossbeam at middle part.Due to the notch 21 of cross section in " U-shaped " that crossbeam 2 has, valve cover plate 3 inside edge has reclinate flanging 31 simultaneously, and thus when overlapping, flanging 31 can be inserted in " U-shaped " notch 21 on crossbeam.
At valve cover plate outer ledge, from the installation site of hinge 4, also has one section of cover plate extension 32 extended laterally.When valve cover plate 3 is washed open by internal pressure, due to the position-limiting action of cover plate extension 32, make the flip angle of valve cover plate be no more than 90 °, like this after pressure release terminates, valve cover plate 3 just can rely on gravity automatically to fall, and sets back.
Claims (3)
1. a quick self-resetting type pressure relief mechanism of direct-current switch cabinet, it is characterized in that: it includes the rectangle doorframe (1) that is arranged on top, switch cubicle hyperbaric chamber, a crossbeam (2) is provided with in the middle part of rectangle doorframe, doorframe is divided into two pressure release passages, two pressure release passages are stamped a valve cover plate (3) respectively, it is hinged that the outer ledge of two valve cover plates and doorframe pass through hinge (4), and the inside edge of two valve cover plates is all overlapped on the crossbeam at middle part.
2. quick self-resetting type pressure relief mechanism of direct-current switch cabinet according to claim 1, it is characterized in that: described valve cover plate (3) outer ledge, from the installation site of hinge, also has one section of cover plate extension (32) extended laterally.
3. quick self-resetting type pressure relief mechanism of direct-current switch cabinet according to claim 1 and 2, it is characterized in that: the cross section of described crossbeam (2) is in " U-shaped ", the edge that valve cover plate (3) and crossbeam (2) overlap simultaneously has reclinate flanging (31), and this flanging (31) is inserted in " U-shaped " notch (21) on crossbeam.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020128805.1U CN201656322U (en) | 2010-03-12 | 2010-03-12 | Quick resettable pressure-release mechanism for direct-current switch cabinets |
| CN201010122326.3A CN101794972B (en) | 2010-03-12 | 2010-03-12 | Quick self-resetting type pressure relief mechanism of direct-current switch cabinet |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020128805.1U CN201656322U (en) | 2010-03-12 | 2010-03-12 | Quick resettable pressure-release mechanism for direct-current switch cabinets |
| CN201010122326.3A CN101794972B (en) | 2010-03-12 | 2010-03-12 | Quick self-resetting type pressure relief mechanism of direct-current switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101794972A CN101794972A (en) | 2010-08-04 |
| CN101794972B true CN101794972B (en) | 2015-05-27 |
Family
ID=50939031
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010122326.3A Active CN101794972B (en) | 2010-03-12 | 2010-03-12 | Quick self-resetting type pressure relief mechanism of direct-current switch cabinet |
| CN201020128805.1U Expired - Lifetime CN201656322U (en) | 2010-03-12 | 2010-03-12 | Quick resettable pressure-release mechanism for direct-current switch cabinets |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020128805.1U Expired - Lifetime CN201656322U (en) | 2010-03-12 | 2010-03-12 | Quick resettable pressure-release mechanism for direct-current switch cabinets |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN101794972B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101794972B (en) * | 2010-03-12 | 2015-05-27 | 镇江大全赛雪龙牵引电气有限公司 | Quick self-resetting type pressure relief mechanism of direct-current switch cabinet |
| CN101931179B (en) * | 2010-08-12 | 2012-07-04 | 河南省电力公司驻马店供电公司 | Directional explosion-proof pressure-relieving device for middle-placed cabinet |
| WO2014029826A1 (en) * | 2012-08-22 | 2014-02-27 | Abb Technology Ag | Arc resistant ventilation system for switchgear |
| CN103500937A (en) * | 2013-09-12 | 2014-01-08 | 安徽驰纬电气有限公司 | Hinge type pressure relief cover of high-voltage switch |
| CN104882816B (en) * | 2015-06-01 | 2017-03-29 | 镇江大全赛雪龙牵引电气有限公司 | The fast automatic pressure relief device of direct-current switch cabinet |
| CN108631189A (en) * | 2018-06-29 | 2018-10-09 | 河南森源电气股份有限公司 | A kind of box-type substation and its babinet |
| US11910546B2 (en) * | 2019-06-03 | 2024-02-20 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Explosion-proof structure for electronic component |
| CN110581446B (en) * | 2019-07-17 | 2021-06-04 | 许继集团有限公司 | Switch cabinet and pressure relief device thereof |
| CN112260122B (en) * | 2020-10-26 | 2022-06-14 | 国网新疆电力有限公司吐鲁番供电公司 | 10kV insulation ring main unit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2262022Y (en) * | 1996-05-10 | 1997-09-10 | 本溪钢铁公司连轧厂 | Sling for lifting roller |
| CN2648653Y (en) * | 2003-04-11 | 2004-10-13 | 李永吉 | Metal-clad switch cubicle |
| CN1287498C (en) * | 2004-09-24 | 2006-11-29 | 上海市天灵开关厂 | Decompression anti-explosion device for switch cabinet |
| CN201352682Y (en) * | 2009-02-12 | 2009-11-25 | 福州天一同益电气有限公司 | Switch cabinet with novel pressure release structure |
| CN101794972B (en) * | 2010-03-12 | 2015-05-27 | 镇江大全赛雪龙牵引电气有限公司 | Quick self-resetting type pressure relief mechanism of direct-current switch cabinet |
-
2010
- 2010-03-12 CN CN201010122326.3A patent/CN101794972B/en active Active
- 2010-03-12 CN CN201020128805.1U patent/CN201656322U/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN201656322U (en) | 2010-11-24 |
| CN101794972A (en) | 2010-08-04 |
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