CN111463687A - Pressure relief device of switch cabinet and switch cabinet - Google Patents
Pressure relief device of switch cabinet and switch cabinet Download PDFInfo
- Publication number
- CN111463687A CN111463687A CN202010436885.5A CN202010436885A CN111463687A CN 111463687 A CN111463687 A CN 111463687A CN 202010436885 A CN202010436885 A CN 202010436885A CN 111463687 A CN111463687 A CN 111463687A
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- Prior art keywords
- pressure relief
- plate
- switch cabinet
- grid
- frame body
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- 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
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention relates to the technical field of switch cabinet equipment, in particular to a pressure relief device of a switch cabinet and the switch cabinet. The pressure relief device comprises a frame body, a pressure relief plate and an electric air grid, wherein one side of the pressure relief plate is rotatably connected with the frame body through a hinge, the other side of the pressure relief plate is connected with the frame body through a plastic bolt, an air outlet is formed in one side face of the frame body, the electric air grid is arranged at the air outlet, the electric air grid comprises a plurality of grid plates, a connecting rod mechanism and a driving mechanism, the grid plates are rotatably arranged at the air outlet respectively, the connecting rod mechanism is connected with the grid plates, and the driving mechanism synchronously drives the grid plates to rotate through the connecting rod mechanism so as to enable the grid. The problem of dehumidification and exhaust of the switch cabinet is solved by arranging the electric air grid which can be controlled to be opened and closed, and meanwhile, the relative closed state of the switch cabinet in a normal state can be ensured; the arrangement of the guide plate ensures the reliable opening of the pressure relief plate in case of failure.
Description
Technical Field
The invention relates to the technical field of switch cabinet equipment, in particular to a pressure relief device of a switch cabinet and the switch cabinet.
Background
In the operation process of a switch cabinet, a primary circuit short circuit fault is caused due to various reasons, high-temperature and high-pressure gas is generated instantly under the short circuit current of tens of thousands of amperes, if the high-temperature and high-pressure gas cannot be released in a narrow cabinet body within a very short time, the switch cabinet can be burst, adjacent switch cabinets are damaged, and personal safety can be hurt.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a pressure relief device of a switch cabinet.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the utility model provides a pressure relief device of cubical switchboard, installs in the pressure relief mouth department of cubical switchboard which characterized in that: the electric air grid is arranged at the air outlet, each grid plate is rotatably arranged at the air outlet respectively, the connecting rod mechanism is connected with each grid plate, and the driving mechanism synchronously drives each grid plate to rotate through the connecting rod mechanism so as to enable each grid plate to seal the air outlet or open the air outlet.
Further, the gas impact pressure relief device further comprises a guide plate, wherein the guide plate is fixedly arranged in the frame body, and the guide plate is arranged towards the side, connected with the frame body, of the pressure relief plate through the plastic bolt in an upward inclined mode so as to guide the direction of the side, connected with the frame body, of the gas impact pressure relief plate through the plastic bolt.
Furthermore, the air outlet is arranged on one side surface of the frame body, which is connected with the frame body through the plastic bolt, of the pressure relief plate, so that the guide plate guides the air to face the direction of the air outlet.
Furthermore, the two ends of the guide plate extend to the two inner sides corresponding to the frame body, the guide plate is provided with a water guide groove formed by bending upwards at the bottom of one side facing the air outlet, and the frame body at the two corresponding ends of the water guide groove is provided with water outlet holes.
Further, the pressure release plate comprises a sealing plate portion and a folding plate portion, the folding plate portion is located on one side of the sealing plate portion and bends downwards, the sealing plate portion is used for sealing an upper opening of the frame body, the hinge is arranged at the lower end of the folding plate portion and connected with the frame body, and when the pressure release plate is rotated to be opened, the sealing plate portion can be vertically upwards.
Furthermore, a 90-degree included angle is formed between the sealing plate part and the folding plate part, so that the situation that the other pressure relief plate cannot be opened when the other chamber breaks down due to the fact that the opening angle is too large is avoided under the opening condition.
Furthermore, the link mechanism comprises a first rod body and a plurality of second rod bodies, the driving mechanism is an electromagnet coil, the first rod body is connected with the electromagnet coil, a plurality of protruding columns are arranged on the first rod body, one end of each second rod body is connected with a grid plate, a long hole is formed in the other end of each second rod body and sleeved on the protruding column on the first rod body, and the electromagnet coil drives the first rod body to move so as to synchronously push the second rod bodies to drive the grid plates to rotate so as to open and close the air outlet.
Furthermore, the frame body and the pressure relief plate are made of galvanized steel sheets.
A kind of switch cabinet, its characterized in that: the pressure relief device of the switch cabinet comprises a controller, a humidity detection device, a dehumidification device and any one of the above, wherein the controller is connected with and controls the humidity detection device, the dehumidification device and an electric air grid of the pressure relief device, and the controller controls the dehumidification device to work and the electric air grid to be opened and closed according to a humidity detection device signal.
Further, the dehumidifying device comprises a heating plate and a fan.
As can be seen from the above description of the present invention, compared with the prior art, the pressure relief device of a switch cabinet and the switch cabinet provided by the present invention solve the problem of dehumidification and exhaust of the switch cabinet by providing the electric air grid capable of being controllably opened and closed, and simultaneously can ensure the relatively closed state of the switch cabinet in the normal state; the guide plate can guide moisture to be discharged from the exhaust port, and simultaneously guide high-temperature gas to impact one side of the pressure relief plate connected with the frame body through the plastic screws during short circuit, so that the pressure relief plate can be reliably opened in a set mode during fault; the bending structure of the pressure relief plate can ensure that the sealing plate part is vertically upward when the pressure relief plate is turned and opened, so that the pressure relief plate of an adjacent switch cabinet is prevented from being blocked after the pressure relief plate is opened, and meanwhile, people possibly passing nearby can be prevented from being injured.
Drawings
Fig. 1 is a schematic view illustrating an open state of a pressure relief plate of a pressure relief device of a switch cabinet according to the present invention.
Fig. 2 is a schematic view illustrating a closed state of a pressure relief plate of a pressure relief device of a switch cabinet according to the present invention.
Fig. 3 is a side cross-sectional view of fig. 1 in accordance with the present invention.
FIG. 4 is a top view of FIG. 1 in accordance with the present invention.
Fig. 5 is an enlarged view of a portion of fig. 4 (with the electric damper closed) in accordance with the present invention.
Fig. 6 is an enlarged view of a portion of fig. 4 (with the electric grill open) in accordance with the present invention.
Fig. 7 is a schematic structural diagram of the switch cabinet of the present invention.
The labels in the figure correspond to the following: 1. the air conditioner comprises a frame body, 11 parts of an upper opening, 12 parts of a lower opening, 13 parts of an air outlet, 14 parts of a water outlet hole, 2 parts of a pressure relief plate, 21 parts of a hinge, 22 parts of a plastic bolt, 23 parts of a sealing plate part, 24 parts of a folding plate part, 3 parts of an electric air grid, 31 parts of a grid plate, 32 parts of a connecting rod mechanism, 321 parts of a first rod body, 322 parts of a second rod body, 323 parts of a convex column, 324 parts of a long type, 33 parts of a driving mechanism, 4 parts of a guide plate, 41 parts of a water guide groove, 5 parts of a controller, 6 parts of a humidity detection device, 7 parts of a dehumidification device, 71.
Detailed Description
The invention is further described below by means of specific embodiments.
Referring to fig. 1 to 7, a pressure relief device of a switch cabinet is installed at a pressure relief opening of the switch cabinet, and includes a frame 1, a pressure relief plate 2, an electric air grid 3, and a guide plate 4.
An air outlet 13 is arranged on one side surface of the frame body 1, the electric air grid 3 is arranged at the air outlet 13, the electric air grid 3 comprises a plurality of grid plates 31, a link mechanism 32 and a driving mechanism 33, the grid plates 31 are respectively and rotatably arranged at the air outlet 13, the link mechanism 32 is connected with the grid plates 31, and the driving mechanism 33 synchronously drives the grid plates 31 to rotate through the link mechanism 32 so that the grid plates 31 seal the air outlet 13 or open the air outlet 13. The link mechanism 32 includes a first rod 321 and a plurality of second rods 322, the driving mechanism 33 is an electromagnet coil, the first rod 321 is connected to the electromagnet coil, the first rod 321 is provided with a plurality of protruding columns 323, one end of the second rod 322 is connected to a louver 31, the other end of the second rod 322 is provided with a long hole 324 and is sleeved on the protruding columns 323 on the first rod 321, and the electromagnet coil drives the first rod 321 to move so as to synchronously push the second rods 322 to drive the louvers 31 to rotate so as to open and close the exhaust outlet 13.
The guide plate 4 is fixedly installed in the frame body 1, and the guide plate 4 is obliquely arranged upwards towards the side, connected with the frame body 1, of the pressure relief plate 2 through the plastic bolts 22 so as to guide the direction of the gas impacting the side, connected with the frame body 1, of the pressure relief plate 2 through the plastic bolts 22. The air outlet 13 is opened on one side of the frame 1 where the pressure release plate 2 is connected to the frame 1 by the plastic bolt 22 so that the guide plate 4 guides the air toward the air outlet 13. Two ends of the guide plate 4 extend to two corresponding inner side edges of the frame body 1, a water guide groove 41 formed by bending upwards is arranged at the bottom of one side of the guide plate 4 facing the air outlet 13, and water outlet holes 14 are formed in the frame body 1 at two corresponding ends of the water guide groove 41.
The frame body 1, the pressure relief plate 2, the grid plate 31 and the guide plate 4 are made of galvanized steel sheets.
The utility model provides a switch cabinet, includes controller 5, humidity detection device 6, dehydrating unit 7, pressure relief device, and controller 5 connection control humidity detection device 6, dehydrating unit 7 and pressure relief device's electronic air grid 3, and controller 5 is according to 6 signals of humidity detection device, control dehydrating unit 7 work and the switching of electronic air grid 3. The dehumidifying device 7 includes a heating plate 71 and a blower 72.
The working principle of the switch cabinet is as follows:
under the normal working state of the electrical equipment in the switch cabinet, if the environmental humidity is high, namely the humidity detection device 6 detects that the humidity in the switch cabinet is too high, the controller 5 controls the dehumidifying device to work 7 and the electric air grid 3 to be opened, namely the heating plate 71 heats the air in the switch cabinet, the fan 72 upwards discharges the humidity, the electromagnet coil of the electric air grid 3 drives the first rod 321 to push out, the grid plates 31 rotate through the second rod 322, and then the air outlet 13 is opened, so that the humidity in the switch cabinet can be smoothly discharged; because the guide plate 4 inclines towards the air outlet 13, the moisture can be better guided and discharged from the air outlet 13, and the water vapor can be liquefied into water on the guide plate 4, so that the water guide groove 41 arranged at the bottom of the guide plate 4 can receive water drops and discharge the water drops to the outside of the frame body 1 from the water outlet holes 14 at the two ends; when the humidity detection device 6 detects that the humidity in the switch cabinet is reduced to a normal value, the controller controls the dehumidification device 7 to be closed, and meanwhile, the electric air grid 3 is closed, so that the switch cabinet is in a relatively closed state, and dust is prevented from entering the switch cabinet.
When electrical equipment in the switch cabinet has a short-circuit fault, high-temperature high-pressure gas is generated instantly under the short-circuit current of tens of thousands of amperes, the guide plate 4 guides the high-pressure gas to face the pressure relief plate 2 and pass through one side of the plastic bolt 22 connected with the frame body 1, so that the gas can impact the side of the pressure relief plate 2, the plastic bolt 22 is broken, the pressure relief plate 2 is turned upwards through the hinge 21, the folding plate part 24 is positioned at one side of the sealing plate part 23 and forms a 90-degree included angle between the sealing plate part 23 and the folding plate part 24, and the sealing plate part 23 is vertically upward after the pressure relief plate 2 is lifted, so that the situation that the pressure relief plate of an adjacent switch cabinet is blocked by the excessively large lifting angle of the pressure relief plate 2 can be avoided, another pressure relief plate cannot be opened when another chamber has a fault, and people possibly passing nearby can be prevented from being injured.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (10)
1. The utility model provides a pressure relief device of cubical switchboard, installs in the pressure relief mouth department of cubical switchboard which characterized in that: the electric air grid is arranged at the air outlet, each grid plate is rotatably arranged at the air outlet respectively, the connecting rod mechanism is connected with each grid plate, and the driving mechanism synchronously drives each grid plate to rotate through the connecting rod mechanism so as to enable each grid plate to seal the air outlet or open the air outlet.
2. The pressure relief device of a switch cabinet according to claim 1, characterized in that: the gas impact pressure relief plate is fixedly arranged in the frame body, and the guide plate is arranged in an upward inclined mode towards one side, connected with the frame body through the plastic bolt, of the pressure relief plate so as to guide the direction of the gas impact pressure relief plate on one side connected with the frame body through the plastic bolt.
3. The pressure relief device of a switch cabinet according to claim 2, characterized in that: the air outlet is arranged on one side surface of the frame body, which is connected with the frame body through the plastic bolt, of the pressure release plate, so that the guide plate guides air to face the direction of the air outlet.
4. The pressure relief device of a switch cabinet according to claim 3, characterized in that: the guide plate is characterized in that two ends of the guide plate extend to two inner side edges corresponding to the frame body, a water guide groove formed by bending upwards is formed in the bottom of one side of the guide plate facing the air outlet, and water outlet holes are formed in the frame body at two corresponding ends of the water guide groove.
5. The pressure relief device of a switch cabinet according to claim 1, characterized in that: the pressure relief plate comprises a sealing plate part and a folding plate part, the folding plate part is located on one side of the sealing plate part and bends downwards, the sealing plate part is used for sealing an upper opening of the frame body, the hinge is arranged at the lower end of the folding plate part and connected with the frame body, and when the pressure relief plate is rotated to be opened, the sealing plate part can be vertically upwards.
6. The pressure relief device of a switch cabinet according to claim 5, characterized in that: a90-degree included angle is formed between the sealing plate part and the folding plate part, so that the situation that the other pressure relief plate cannot be opened when the other chamber breaks down due to the fact that the opening angle is too large under the opening situation is avoided.
7. The pressure relief device of a switch cabinet according to claim 1, characterized in that: the link mechanism comprises a first rod body and a plurality of second rod bodies, the driving mechanism is an electromagnet coil, the first rod body is connected with the electromagnet coil, a plurality of protruding columns are arranged on the first rod body, one end of each second rod body is connected with a grid plate, a long hole is formed in the other end of each second rod body, the long hole is sleeved on the protruding column on the first rod body, and the electromagnet coil drives the first rod body to move so as to synchronously push each second rod body to drive the grid plate to rotate so as to open and close the air outlet.
8. The pressure relief device of a switch cabinet according to claim 1, characterized in that: the frame body and the pressure relief plate are made of galvanized steel plates.
9. A kind of switch cabinet, its characterized in that: the pressure relief device of the switch cabinet comprises a controller, a humidity detection device, a dehumidification device and the electric air grid of any one of claims 1 to 8, wherein the controller is connected with the humidity detection device, the dehumidification device and the electric air grid of the pressure relief device, and the controller controls the dehumidification device to work and the electric air grid to be opened and closed according to signals of the humidity detection device.
10. A switchgear cabinet according to claim 9, characterized in that: the dehumidifying device comprises a heating plate and a fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010436885.5A CN111463687A (en) | 2020-05-21 | 2020-05-21 | Pressure relief device of switch cabinet and switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010436885.5A CN111463687A (en) | 2020-05-21 | 2020-05-21 | Pressure relief device of switch cabinet and switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111463687A true CN111463687A (en) | 2020-07-28 |
Family
ID=71681127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010436885.5A Pending CN111463687A (en) | 2020-05-21 | 2020-05-21 | Pressure relief device of switch cabinet and switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111463687A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072486A (en) * | 2020-08-10 | 2020-12-11 | 华翔翔能科技股份有限公司 | Explosion-proof high-low voltage complete set regulator cubicle |
| CN112803292A (en) * | 2020-12-30 | 2021-05-14 | 青岛益和电气集团股份有限公司 | Pressure relief channel for switch cabinet and switch cabinet system |
| CN113161909A (en) * | 2021-04-29 | 2021-07-23 | 李钢 | High-voltage distribution cabinet pressure relief device based on internet of things |
-
2020
- 2020-05-21 CN CN202010436885.5A patent/CN111463687A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072486A (en) * | 2020-08-10 | 2020-12-11 | 华翔翔能科技股份有限公司 | Explosion-proof high-low voltage complete set regulator cubicle |
| CN112803292A (en) * | 2020-12-30 | 2021-05-14 | 青岛益和电气集团股份有限公司 | Pressure relief channel for switch cabinet and switch cabinet system |
| CN113161909A (en) * | 2021-04-29 | 2021-07-23 | 李钢 | High-voltage distribution cabinet pressure relief device based on internet of things |
| CN113161909B (en) * | 2021-04-29 | 2022-09-02 | 山东昊泰电气有限公司 | High voltage distribution cabinet pressure relief device based on internet of things |
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