CN101794972A - 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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- CN101794972A CN101794972A CN201010122326A CN201010122326A CN101794972A CN 101794972 A CN101794972 A CN 101794972A CN 201010122326 A CN201010122326 A CN 201010122326A CN 201010122326 A CN201010122326 A CN 201010122326A CN 101794972 A CN101794972 A CN 101794972A
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- pressure relief
- switch cabinet
- direct
- 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 quick self-resetting type pressure relief mechanism of direct-current switch cabinet that is used for direct-current switch cabinet.
Background technology
The effect of switch cubicle hyperbaric chamber pressure relief device be short-circuited at high-tension switch cabinet, fault such as arcing, when causing hyperbaric chamber temperature and air pressure inside sharply to raise, pressure can be gushed fast assurance equipment and personnel's safety.The pattern of web plate pressure release is generally adopted in existing direct-current switch cabinet and the pressure release of high-tension switch cabinet hyperbaric chamber.There are a lot of problems in the web plate pressure release, and at first owing to have bigger mesh thereby protective capacities is very low on the web plate, the dust of suspension and humid air can directly enter in the hyperbaric chamber, can have influence on the fail safe of electrical operation for a long time; Secondly the web plate relief mode all adopts bolt (or nylon bolt) fixing, when short circuit or fault appear in circuit, circuit breaker trip produces very strong electric arc and very big energy, the high pressure indoor gas sharply expands, wash web plate open cabinet, personnel brought insecurity around web plate meeting gross distortion was given simultaneously; Need the staff to reinstall after web plate is washed open, workload is big and safeguard inconvenient.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of simple in structure, protective capacities strong, the quick self-resetting type pressure relief mechanism of direct-current switch cabinet that can recover automatically after the pressure release.
Quick self-resetting type pressure relief mechanism of direct-current switch cabinet of the present invention includes a rectangle doorframe that is installed in top, switch cubicle hyperbaric chamber, rectangle doorframe middle part is provided with a crossbeam, doorframe is divided into two pressure release passages, on two pressure release passages, be stamped a valve cover plate respectively, the outer ledge of two valve cover plates and doorframe are hinged by hinge, and the inside edge of two valve cover plates all is overlapped on the crossbeam at middle part.
Described valve cover plate outer ledge from the installation site of hinge, also has one section cover plate extension of extending laterally.
The cross section of described crossbeam is " U-shaped ", and simultaneously the valve cover plate has reclinate flanging with the edge that crossbeam overlaps, and described flanging is inserted in " U-shaped " notch on the crossbeam.
Simple in structure, the reliable in action of the present invention, owing to adopt the pressure relief of shutter-type, can guarantee that dust can't enter under the normal condition, improved its protective capacities, can guarantee that also valve can be opened pressure release rapidly when internal pressure is big, can under action of gravity, set back automatically at valve cover plate after the pressure release simultaneously.
Description of drawings
Fig. 1 is a front of the present invention sectional structure schematic diagram;
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 a rectangle doorframe 1 that is installed in top, switch cubicle hyperbaric chamber, the crossbeam 2 at rectangle doorframe middle part is divided into two pressure release passages with doorframe, on two pressure release passages, be stamped a valve cover plate 3 respectively, the outer ledge of two valve cover plates 3 and doorframe 1 connect by hinge hinge 4, and the inside edge of two valve cover plates is overlapped on the crossbeam at middle part.Because the cross section that has on the crossbeam 2 is the notch 21 of " U-shaped ", valve cover plate 3 inside edges have reclinate flanging 31 simultaneously, thereby flanging 31 can be inserted in " U-shaped " notch 21 on the crossbeam when overlap joint.
At valve cover plate outer ledge,, also has one section cover plate extension 32 of extending laterally from the installation site of hinge 4.When valve cover plate 3 was washed open by internal pressure, because the position-limiting action of cover plate extension 32 makes the flip angle of valve cover plate be no more than 90 °, after pressure release finished, valve cover plate 3 just can rely on gravity to fall automatically, sets back like this.
Claims (3)
1. quick self-resetting type pressure relief mechanism of direct-current switch cabinet, it is characterized in that: it includes a rectangle doorframe (1) that is installed in top, switch cubicle hyperbaric chamber, rectangle doorframe middle part is provided with a crossbeam (2), doorframe is divided into two pressure release passages, on two pressure release passages, be stamped a valve cover plate (3) respectively, the outer ledge of two valve cover plates and doorframe are hinged by hinge (4), and the inside edge of two valve cover plates all is overlapped on the crossbeam at middle part.
2. quick self-resetting type pressure relief mechanism of direct-current switch cabinet according to claim 1 is characterized in that: described valve cover plate (3) outer ledge from the installation site of hinge, also has one section cover plate extension (32) of extending 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 " U-shaped ", simultaneously valve cover plate (3) has reclinate flanging (31) with the edge of crossbeam (2) overlap joint, and this flanging (31) is inserted in " U-shaped " notch (21) on the crossbeam.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010122326.3A CN101794972B (en) | 2010-03-12 | 2010-03-12 | Quick self-resetting type pressure relief mechanism of direct-current switch cabinet |
| CN201020128805.1U CN201656322U (en) | 2010-03-12 | 2010-03-12 | Quick resettable pressure-release mechanism for direct-current switch cabinets |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010122326.3A CN101794972B (en) | 2010-03-12 | 2010-03-12 | Quick self-resetting type pressure relief mechanism of direct-current switch cabinet |
| CN201020128805.1U CN201656322U (en) | 2010-03-12 | 2010-03-12 | Quick resettable pressure-release mechanism for direct-current switch cabinets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101794972A true CN101794972A (en) | 2010-08-04 |
| CN101794972B 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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931179A (en) * | 2010-08-12 | 2010-12-29 | 河南省电力公司驻马店供电公司 | Directional explosion-proof pressure-relieving device for middle-placed cabinet |
| 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 |
| CN104604055A (en) * | 2012-08-22 | 2015-05-06 | Abb技术有限公司 | Arc resistant ventilation system for switchgear |
Families Citing this family (6)
| 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 |
| 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 |
| WO2020245879A1 (en) * | 2019-06-03 | 2020-12-10 | 東芝三菱電機産業システム株式会社 | Explosion-proof structure |
| 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 |
Citations (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 |
| CN1588723A (en) * | 2004-09-24 | 2005-03-02 | 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 |
| CN201656322U (en) * | 2010-03-12 | 2010-11-24 | 镇江大全赛雪龙牵引电气有限公司 | Quick resettable pressure-release mechanism for direct-current switch cabinets |
-
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
Patent Citations (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 |
| CN1588723A (en) * | 2004-09-24 | 2005-03-02 | 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 |
| CN201656322U (en) * | 2010-03-12 | 2010-11-24 | 镇江大全赛雪龙牵引电气有限公司 | Quick resettable pressure-release mechanism for direct-current switch cabinets |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931179A (en) * | 2010-08-12 | 2010-12-29 | 河南省电力公司驻马店供电公司 | Directional explosion-proof pressure-relieving device for middle-placed 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 |
| CN104604055A (en) * | 2012-08-22 | 2015-05-06 | Abb技术有限公司 | Arc resistant ventilation system for switchgear |
| CN104604055B (en) * | 2012-08-22 | 2019-06-28 | Abb瑞士股份有限公司 | Are-tight ventilating system for switching device |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN201656322U (en) | 2010-11-24 |
| CN101794972B (en) | 2015-05-27 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |