CN107910790B - Shunt pressure relief device - Google Patents
Shunt pressure relief device Download PDFInfo
- Publication number
- CN107910790B CN107910790B CN201711380069.1A CN201711380069A CN107910790B CN 107910790 B CN107910790 B CN 107910790B CN 201711380069 A CN201711380069 A CN 201711380069A CN 107910790 B CN107910790 B CN 107910790B
- Authority
- CN
- China
- Prior art keywords
- plate
- ventilation
- pressure relief
- diversion
- split
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000009423 ventilation Methods 0.000 claims abstract description 47
- 238000009434 installation Methods 0.000 claims description 24
- 230000000903 blocking effect Effects 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention provides a split-flow pressure relief device which comprises a shell, wherein a tower-shaped pressure relief structure is arranged in the shell, the tower-shaped pressure relief structure comprises split-flow guide plates stacked into a tower shape, each split-flow guide plate comprises a split-flow surface and a ventilation surface, and ventilation holes are formed in the ventilation surface. The beneficial effects of the invention are as follows: after the device acts on, the energy of hot air is consumed, and the glowing particles are filtered, so that the safety of the switch cabinet is greatly improved, and the external dimension of the switch cabinet is not influenced.
Description
Technical Field
The invention relates to a switch cabinet, in particular to a pressure relief device of the switch cabinet, which meets the requirements of arcing and temperature rise.
Background
Switch cabinets in the current market generally adopt external pressure release channels or pressure release devices similar to corrugated type to prevent hot gas and burning particles from damaging a horizontal indicator aiming at a high-current short-circuit arcing test. However, the external pressure relief channel has high cost and can greatly influence the overall size of the cabinet body, and the corrugated pressure relief device has insufficient ventilation rate and poor blocking effect on burning particles.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the pressure relief device for the switch cabinet, which has low cost, can effectively block burning particles and can meet the requirements of arcing and temperature rise.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a reposition of redundant personnel pressure relief device, includes the casing, is equipped with tower pressure relief structure in the casing, and tower pressure relief structure is including piling up into the reposition of redundant personnel deflector of tower form, and the reposition of redundant personnel deflector includes reposition of redundant personnel face and ventilation face, is equipped with the ventilation hole on the ventilation face.
Further, the diversion guide plate further comprises a first installation surface and a second installation surface, one side of the first installation surface is connected with the ventilation surface, the other side of the first installation surface is connected with the diversion surface, the other side of the ventilation surface is connected with the second installation surface, a ventilation opening is formed between the second installation surface and the diversion surface, the ventilation surface faces the side plate, and the ventilation opening faces the bottom plate.
Further, the flow dividing surfaces are arranged in a grid shape along the transverse direction of the pressure relief device.
Further, the diversion guide plates are staggered and stacked from inside to outside in sequence, wherein the second installation surface of the adjacent upper diversion guide plate is fixedly connected with the first installation surface of the adjacent lower diversion guide plate, an air inlet of the upper diversion guide plate is formed between the diversion surface of the upper diversion guide plate and the diversion surface of the lower diversion guide plate, and the air inlet and the ventilation hole of the ventilation surface form a pressure release channel of the single diversion guide plate.
Further, the casing includes bottom plate, curb plate and roof, and the bottom plate is installed at the top of cubical switchboard, is equipped with the fresh air inlet on the bottom plate, and roof and one of them curb plate rotatable coupling.
Further, the upper portion of curb plate is equipped with inwards hem, and the lower part of curb plate is equipped with outwards hem, and the curb plate passes through its lower part outwards hem fixed mounting in the both sides of bottom plate, and the upper end outside of the curb plate of rotatable connection with the roof is equipped with the hinge, is equipped with the bolt hole on the hem of another curb plate upper portion.
Further, the inside surface of roof is equipped with the gauze, and the gauze satisfies IP4X protection level.
Further, the filter screen is arranged below the top plate, an upper cross beam and a lower cross beam are arranged between the side plates, the filter screen is arranged between the upper cross beam and the lower cross beam, and the filter screen meets the IP4X protection level.
Further, the filter screen comprises an upper surface section, a lower surface section and a bending surface section, wherein two ends of the upper surface section are connected with the lower surface end through the bending surface section, the upper surface section and the lower surface section are mutually parallel, the upper surface section is fixedly connected to the upper cross beam, and the lower surface section is fixedly connected to the lower cross beam.
Further, be equipped with the ventilation bars on the curb plate, the guard plate is arranged in the outside of ventilation bars, and the guard plate outwards protrudes, and the guard plate inboard is equipped with the side filter screen, and this side filter screen also satisfies IP4X protection level requirement, still is equipped with the barrier plate in the outside of both sides curb plate, and the structure of barrier plate is unanimous with the curb plate.
The beneficial effects of the invention are as follows: the tower-shaped shunt pressure relief device plays a role in shunting the hot gas through the shunt guide plates stacked into a tower shape, and the grid formed by the shunt surfaces plays a role in cutting the electric arc when the electric arc passes through. After the first side plate and the second side plate collide hot gas and hot particles and consume energy, the filter screen can effectively filter the particles and prevent the particles from splashing. After the device acts on, the energy of hot air is consumed, and the glowing particles are filtered, so that the safety of the switch cabinet is greatly improved, and the external dimension of the switch cabinet is not influenced.
Drawings
Fig. 1 is a perspective view of the pressure relief device of example 1.
Fig. 2 is a schematic diagram of the pressure relief device of example 1.
Fig. 3 is a schematic view of a diverter guide plate.
Fig. 4 is a schematic view of a screen.
Fig. 5 is a perspective view of the pressure relief device of example 2.
Fig. 6 is a schematic diagram of the pressure relief device of example 2.
Reference numerals in the drawings: a top plate 1; a first side plate 2; a second side plate 3; a bottom plate 4; a hinge 5; a plastic bolt 6; a gauze 7; a diversion guide plate 8; a filter screen 9; an upper cross member 10; a lower cross member 11; an air inlet hole 12; a first mounting surface 13; a ventilation surface 14; a vent hole 15; a split surface 16; an upper surface section 17; a lower surface section 18; a curved surface section 19; a second mounting surface 20; a blocking plate 21; a protection plate 22; a ventilation grid 23.
Detailed Description
The following detailed description of specific embodiments of the invention is provided in connection with the accompanying drawings, and it should be noted that the examples are merely illustrative of the technical solution of the invention and are not limiting of the invention.
Example 1, refer to fig. 1-4.
In this embodiment, the reposition of redundant personnel pressure relief device includes the casing, and the casing includes bottom plate 4, first curb plate 2, second curb plate 3 and roof 1, and bottom plate 4 installs the top at the cubical switchboard, is equipped with inlet opening 12 on the bottom plate 4, and roof 1 passes through hinge 5 rotatable coupling with first curb plate 2.
The upper portion of first curb plate 2 and second curb plate 3 is equipped with inward hem, and the lower part of first curb plate 2 and second curb plate 3 is equipped with outside hem for first curb plate 2 and second curb plate 3 form relative zigzag, and first curb plate 2 and second curb plate 3 are equipped with the bolt hole on the hem on second curb plate 3 upper portion through the outside hem fixed mounting of its lower part in the both sides of bottom plate 4 respectively, after roof 1 covers, can be with roof fixed connection in second curb plate 3 upper portion through plastic bolt 6.
As shown in fig. 1, the inner side surface of the top plate 1 is provided with a gauze 7, and the gauze 7 satisfies the IP4X protection level.
A filter screen 9 is arranged below the top plate 1, an upper cross beam 10 and a lower cross beam 11 are arranged between the first side plate 2 and the second side plate 3, the filter screen 9 is arranged between the upper cross beam 10 and the lower cross beam 11, and the filter screen 9 meets the IP4X protection level.
As a preference, as shown in fig. 4, the filter screen 9 includes an upper surface section 17, a lower surface section 18 and a bending surface section 19, both ends of the upper surface section 17 are respectively connected to the two lower surface ends 18 through the bending surface section 19, the upper surface section 17 and the lower surface section 18 are parallel to each other, the upper surface section 17 is fixedly connected to the upper cross beam 10, and the lower surface section 18 is fixedly connected to the lower cross beam 11, so that the filter screen is fixed to the upper half part of the inner space of the housing through the upper and lower cross beams.
As shown in fig. 1-2, a tower-shaped pressure relief structure is arranged in the shell, the tower-shaped pressure relief structure comprises split guide plates 8 stacked into a tower shape, the split guide plates 8 are stacked in two rows, and the split guide plates are sequentially and inwards offset from top to bottom during stacking, so that a tower-shaped structure is formed, and the tower-shaped structure with small top and large bottom is high in stability and strong in impact resistance. There is a certain clearance between the two sides of the tower-type pressure relief structure and the first side plate 2 and the second side plate 3, and this clearance can be used for temporarily storing the falling particulate matters.
As shown in fig. 3, the diversion guide plate 8 includes a diversion surface 16 and a ventilation surface 14, a plurality of ventilation holes 15 are formed in the ventilation surface 14, the diversion guide plate 8 further includes a first installation surface 13 and a second installation surface 20, one side of the first installation surface 13 is connected with the ventilation surface 14, the other side is connected with the diversion surface 16, the other side of the ventilation surface 14 is connected with the second installation surface 20, and a ventilation opening is formed between the second installation surface 20 and the diversion surface 16, so that the diversion guide plate 8 forms a structure with a C-shaped cross section, the opening of the C-shaped is a ventilation opening, the ventilation surface 14 faces the first side plate 2 and the second side plate 3 on two sides, and the ventilation opening faces the bottom plate 4.
As shown in fig. 2, the flow dividing surfaces 16 of the plurality of flow dividing guide plates 8 are arranged in a grid shape along the lateral direction of the pressure relief device, and function to cut an arc and divide the hot gas.
The diversion guide plates 8 are stacked in a staggered manner from the inside to the outside in sequence, wherein the second installation surface 20 of the adjacent upper diversion guide plate is fixedly connected with the first installation surface 13 of the adjacent lower diversion guide plate, generally speaking, the connection part is positioned in the middle of the first installation surface 13, an air inlet of the upper diversion guide plate 8 is formed between the diversion surface 16 of the upper diversion guide plate and the diversion surface 16 of the lower diversion guide plate, and the air inlet and the ventilation hole of the ventilation surface form a pressure release channel of the single diversion guide plate.
The working principle of the structure of this embodiment is shown in fig. 2, when a large amount of high-temperature and high-pressure gas is generated at the bottom of the pressure relief device due to the arcing explosion of the switch cabinet, the hot gas firstly enters the pressure relief device through the air inlet 12 on the bottom plate 4, then is split by the split guide plate 8 and changes the direction of the air flow, and then impacts the first side plate 2 and the second side plate 3 after passing through the ventilation surface 14 of the split guide plate 8. The hot gas collides with the hot particles mixed in the hot gas and consumes energy, and then passes through the filter screen 9 upwards. The glowing particles are filtered by the filter screen 9 and then fall down to be accumulated at the corner of the pressure relief device, and the residual hot air is discharged outside the pressure relief device after being flushed away by the top plate 1 through the filter screen 9.
Example 2, see fig. 3-6.
In this embodiment, the first side plate 2 and the second side plate 3 are provided with ventilation grids 23, the outer sides of the ventilation grids 23 are provided with protection plates 22, the protection plates 22 protrude outwards, the outer sides of the two side plates are also provided with blocking plates 21, the structure of each blocking plate 21 is consistent with that of the first side plate 2 and the second side plate 3, the upper parts of the blocking plates are provided with inward folded edges, the lower parts of the blocking plates are provided with outward folded edges, and the blocking plates are fixedly connected to the bottom plate 4 through the outward folded edges.
Other embodiments of this example are the same as example 1.
The working principle of the structure of this embodiment is shown in fig. 6, when a large amount of high-temperature and high-pressure gas is generated at the bottom of the pressure relief device due to the arcing explosion of the switch cabinet, the hot gas enters the pressure relief device through the air inlet hole 12 on the bottom plate 4, then is split by the split guide plate 8 and changes the air flow direction, and after passing through the ventilation surface 14 of the split guide plate 8, the hot gas impacts the first ventilation side plate 22 and the second ventilation side plate 23. After collision energy consumption, part of the hot gas and the glowing particles mixed in the hot gas upwards pass through the upper filter screen 9 to be filtered and then upwards discharged, and the other part passes through the grid holes 25 and then passes through the lateral filter screen to be filtered and then is guided by the blocking plates 21 at the two sides to be upwards discharged.
It should be noted that the above description is only of the preferred embodiments of the present invention, and it should be noted that it is possible for those skilled in the art to make several improvements and modifications without departing from the concept of the present invention, and these improvements and modifications should also be considered as being within the scope of the present invention.
Claims (6)
1. The split pressure relief device comprises a shell, and is characterized in that a tower-shaped pressure relief structure is arranged in the shell, the tower-shaped pressure relief structure comprises split guide plates stacked into a tower shape, each split guide plate comprises a split surface and a ventilation surface, and ventilation holes are formed in the ventilation surface; the diversion guide plate further comprises a first installation surface and a second installation surface, one side of the first installation surface is connected with the ventilation surface, the other side of the first installation surface is connected with the diversion surface, the other side of the ventilation surface is connected with the second installation surface, a ventilation opening is formed between the second installation surface and the diversion surface, the ventilation surface faces the side plate, and the ventilation opening faces the bottom plate; the diversion guide plates are sequentially stacked from bottom to top in an inward offset manner to form a tower-shaped structure, wherein the second installation surface of the adjacent upper diversion guide plate is fixedly connected with the first installation surface of the adjacent lower diversion guide plate, an air inlet of the upper diversion guide plate is formed between the diversion surface of the upper diversion guide plate and the diversion surface of the lower diversion guide plate, and the air inlet and the ventilation hole of the ventilation surface form a pressure release channel of a single diversion guide plate; the casing includes bottom plate, curb plate and roof, and the bottom plate is installed at the top of cubical switchboard, is equipped with the fresh air inlet on the bottom plate, and roof and one of them curb plate rotatable coupling.
2. The split pressure relief device according to claim 1 wherein the upper portion of the side plate is provided with an inward flange, the lower portion of the side plate is provided with an outward flange, the side plate is fixedly mounted on both sides of the bottom plate by the outward flange at the lower portion thereof, a hinge is provided outside the upper end of the side plate rotatably connected to the top plate, and a bolt hole is provided on the flange at the upper portion of the other side plate.
3. The shunt pressure relief device of claim 2 wherein the inside surface of the top plate is provided with a screen that meets the IP4X protection rating.
4. The split pressure relief device according to claim 1 wherein a filter screen is provided below the top plate, an upper cross beam and a lower cross beam are provided between the side plates, the filter screen is mounted between the upper cross beam and the lower cross beam, and the filter screen meets an IP4X protection level.
5. The shunt pressure relief device of claim 4 wherein the screen comprises an upper surface section, a lower surface section and a curved surface section, wherein two ends of the upper surface section are connected to the lower surface end by the curved surface section, the upper surface section and the lower surface section are parallel to each other, the upper surface section is fixedly connected to the upper cross beam, and the lower surface section is fixedly connected to the lower cross beam.
6. The split-flow pressure relief device according to claim 1, wherein the side plates are provided with ventilation grids, the outer sides of the ventilation grids are provided with protection plates, the protection plates protrude outwards, the inner sides of the protection plates are provided with filter screens, the outer sides of the side plates at two sides are also provided with blocking plates, and the structure of the blocking plates is consistent with that of the side plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711380069.1A CN107910790B (en) | 2017-12-20 | 2017-12-20 | Shunt pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711380069.1A CN107910790B (en) | 2017-12-20 | 2017-12-20 | Shunt pressure relief device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107910790A CN107910790A (en) | 2018-04-13 |
| CN107910790B true CN107910790B (en) | 2023-12-29 |
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ID=61870377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711380069.1A Active CN107910790B (en) | 2017-12-20 | 2017-12-20 | Shunt pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107910790B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018206577A1 (en) * | 2018-04-27 | 2019-10-31 | Siemens Aktiengesellschaft | switch cabinet |
| CN108404582A (en) * | 2018-05-05 | 2018-08-17 | 中科天工电气控股有限公司 | A kind of pressure relief device with efficient circulation efficiency |
| CN108808485A (en) * | 2018-07-02 | 2018-11-13 | 青岛特锐德电气股份有限公司 | Pressure relief device of switch cabinet and switchgear |
| CN109004570A (en) * | 2018-08-27 | 2018-12-14 | 江苏南瑞帕威尔电气有限公司 | A kind of high-tension switch cabinet Novel pressure relief device |
| CN110741965B (en) * | 2019-11-12 | 2021-10-15 | 颍上县达鸣家禽养殖有限公司 | Ventilation and deodorization system for poultry farm and breeding method thereof |
| CN110994394A (en) * | 2019-12-30 | 2020-04-10 | 青岛益和电气集团股份有限公司 | Cubical switchboard pressure relief device and cubical switchboard |
| CN117856076A (en) * | 2024-03-06 | 2024-04-09 | 福州许继电气有限公司 | Novel KYN cubical switchboard pressure release structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201898292U (en) * | 2010-12-02 | 2011-07-13 | 上海广电电气(集团)股份有限公司 | Partition plate for heat dissipation and arc extinction in medium voltage switchgear |
| CN202178500U (en) * | 2011-07-29 | 2012-03-28 | 上海西门子开关有限公司 | Air discharge assembly of switch cabinet and switch cabinet |
| CN205609981U (en) * | 2016-04-11 | 2016-09-28 | 镇江大全伊顿电器有限公司 | Medium voltage switchgear cabinet body pressure release board |
| CN107453249A (en) * | 2017-07-24 | 2017-12-08 | 国网山东省电力公司经济技术研究院 | Direct-current switch cabinet pressure relief device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10079480B2 (en) * | 2015-10-06 | 2018-09-18 | Schneider Electric USA, Inc. | Water resistant arc resistant outdoor switchgear air vent |
-
2017
- 2017-12-20 CN CN201711380069.1A patent/CN107910790B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201898292U (en) * | 2010-12-02 | 2011-07-13 | 上海广电电气(集团)股份有限公司 | Partition plate for heat dissipation and arc extinction in medium voltage switchgear |
| CN202178500U (en) * | 2011-07-29 | 2012-03-28 | 上海西门子开关有限公司 | Air discharge assembly of switch cabinet and switch cabinet |
| CN205609981U (en) * | 2016-04-11 | 2016-09-28 | 镇江大全伊顿电器有限公司 | Medium voltage switchgear cabinet body pressure release board |
| CN107453249A (en) * | 2017-07-24 | 2017-12-08 | 国网山东省电力公司经济技术研究院 | Direct-current switch cabinet pressure relief device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107910790A (en) | 2018-04-13 |
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| CB02 | Change of applicant information |
Address after: Wenzhou Bridge Industrial Park Yueqing City, Zhejiang province 325600 white town of Wenzhou city (Wankong Group Co.) Applicant after: Wancon Zhizhuang Co.,Ltd. Address before: Wenzhou Bridge Industrial Park Yueqing City, Zhejiang province 325600 white town of Wenzhou city (Wankong Group Co.) Applicant before: WECOME INTELLIGENT MANUFACTURING ZHEJIANG ELECTRIC CO.,LTD. |
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