High-voltage switch cabinet with pressure relief channel
By introducing a pneumatic sensor and an electromagnet system into the high-voltage switch cabinet, the opening of the pressure relief channel is automatically controlled, which solves the problem of poor pressure relief effect of existing pressure relief devices, and achieves rapid pressure relief and safety improvement.
Patent Information
- Application Number
- CN202422389015.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The existing high-voltage switch cabinet pressure relief device has poor pressure relief effect and cannot perform pressure relief in time, resulting in possible explosion risk.
A high-voltage switch cabinet with pressure relief channel was designed, using a pneumatic pressure sensor and an electromagnet system. By detecting that the air pressure reaches the critical value, the pressure relief channel is automatically opened, and the interaction between the electromagnet and the magnetic block is used to achieve rapid pressure relief.
It realizes automatic and rapid pressure relief when the internal air pressure of the high-voltage switch cabinet reaches the critical value, reduces the risk of explosion, and maintains the air tightness without damage.
Smart Images
Figure CN223230759U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field related to high-voltage switch cabinets, in particular to a high-voltage switch cabinet with a pressure relief channel. Background Art
[0002] High-voltage switchgear is a device used for switching, controlling, or protecting power generation, transmission, distribution, conversion, and consumption in power systems. High-voltage switchgear is classified into several categories, including electrical products with voltage ratings ranging from 3.6kV to 550kV, including high-voltage disconnectors and earthing switches, high-voltage load switches, high-voltage automatic reclosers, sectionalizers, high-voltage operating mechanisms, high-voltage explosion-proof distribution devices, and high-voltage switchgear. When high-voltage switchgear presents hazards such as electric shock and fire, it can easily lead to excessive pressure within the switchgear. When the pressure reaches its limit, it can explode, causing damage to nearby personnel and property. However, existing pressure relief devices are ineffective and cannot provide timely pressure relief. Utility Model Content
[0003] In order to solve the defects in the prior art that the existing pressure relief devices have poor pressure relief effects and cannot relieve pressure in time, the utility model provides a high-voltage switch cabinet with a pressure relief channel.
[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:
[0005] The utility model discloses a high-voltage switch cabinet with a pressure relief channel, comprising a high-voltage switch cabinet body, a side panel of the high-voltage switch cabinet body being provided with a pressure relief channel connected to an inner cavity of the high-voltage switch cabinet body, a closing plate being further provided on the side panel for closing the pressure relief channel when the high-voltage switch cabinet body is not under pressure relief, and the closing plate and the side panel being connected via a bouncing mechanism, and the bouncing mechanism comprising a magnetic block arranged on the closing plate and an electromagnet arranged on an inner wall of the high-voltage switch cabinet body, the magnetic block and the electromagnet being attracted when no power is applied, an air pressure sensor and a power supply being further provided in the high-voltage switch cabinet body, the air pressure sensor being used to detect the air pressure inside the high-voltage switch cabinet body, the high-voltage switch cabinet body being further provided with a controller, the power supply being connected to the electromagnet via the controller, and the air pressure sensor being connected to the controller.
[0006] As an optimal technical solution of the present invention, when the air pressure sensor detects that the air pressure inside the high-voltage switch cabinet body reaches a set critical value, the controller controls the power supply to supply power to the electromagnet, and the same polarity is generated between the electromagnet and the magnetic block after power is supplied.
[0007] As a preferred technical solution of the present invention, a compression spring is provided between the electromagnet and the magnetic block.
[0008] As a preferred technical solution of the present invention, the magnetic block is provided with a receiving groove for receiving the compression spring in a compressed state.
[0009] As a preferred technical solution of the present invention, a rubber sealing ring is provided on the peripheral side of the pressure relief channel.
[0010] As a preferred technical solution of the present invention, the closing plate is made of insulating material.
[0011] The beneficial effects of the utility model are:
[0012] This type of high-voltage switchgear with a pressure relief channel is provided with a pressure relief channel connected to the inner cavity of the high-voltage switchgear body on the side panel of the high-voltage switchgear body, and the side panel is also provided with a closing plate for closing the pressure relief channel when the high-voltage switchgear body is not releasing pressure, wherein the closing plate and the high-voltage switchgear body are firmly fixed together by the attraction between the unpowered electromagnet and the magnetic block, so as not to destroy the overall airtightness, and the internal air pressure of the high-voltage switchgear body is detected by the air pressure sensor, and when the air pressure sensor detects that the air pressure inside the high-voltage switchgear body reaches the set critical value, the controller controls the power supply to supply power to the electromagnet, and the same polarity is generated between the energized electromagnet and the magnetic block, so that the closing plate is automatically popped out and the pressure relief channel is opened, so that rapid pressure relief can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0014] Figure 1 This is a structural diagram of a high-voltage switchgear with a pressure relief channel according to the present utility model;
[0015] Figure 2 This is a schematic diagram of the closing and popping out of a high-voltage switchgear with a pressure relief channel in the utility model;
[0016] Figure 3 This utility model is a high-voltage switch cabinet with a pressure relief channel Figure 1 Enlarged schematic diagram of point A in the middle.
[0017] In the figure: 1. High-voltage switchgear body; 2. Pressure relief channel; 3. Closing plate; 4. Magnetic block; 5. Electromagnet; 6. Air pressure sensor; 7. Power supply; 8. Controller; 9. Compression spring; 10. Storage slot; 11. Rubber sealing ring. DETAILED DESCRIPTION
[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.
[0019] Example: Figure 1 、 Figure 2 and Figure 3 As shown, the utility model is a high-voltage switchgear with a pressure relief channel, comprising a high-voltage switchgear main body 1, a side panel of the high-voltage switchgear main body 1 is provided with a pressure relief channel 2 connected to the inner cavity of the high-voltage switchgear main body 1, and a closing plate 3 is further provided on the side panel for closing the pressure relief channel 2 of the high-voltage switchgear main body 1 when no pressure is released, and the closing plate 3 and the side panel are connected via a bouncing mechanism, and the bouncing mechanism includes a magnetic block 4 arranged on the closing plate 3, and an electromagnet 5 arranged on the inner wall of the high-voltage switchgear main body 1, when no power is applied, the magnetic block 4 and the electromagnet 5 are adsorbed, and an air pressure sensor 6 and a power supply 7 are further provided in the high-voltage switchgear main body 1, the air pressure sensor 6 is used to detect the air pressure inside the high-voltage switchgear main body 1, and the high-voltage switchgear main body 1 is also provided with a controller 8, the power supply 7 is connected to the electromagnet 5 via the controller 8, and the air pressure sensor 6 is connected to the controller 8.
[0020] When the air pressure sensor 6 detects that the air pressure inside the high-voltage switchgear body 1 has reached a set critical value, the controller 8 controls the power supply to supply power to the electromagnet 5. When energized, the electromagnet 5 and the magnetic block 4 generate the same polarity. A pressure relief passage 2 is provided on the side panel of the high-voltage switchgear body, communicating with the inner cavity of the high-voltage switchgear body 1. The side panel also has a closing plate 3 that closes the pressure relief passage 2 when the high-voltage switchgear body 1 is not releasing pressure. The closing plate 3 and the high-voltage switchgear body 1 are firmly fixed together by the attraction between the electromagnet 5 and the magnetic block 4 when not energized, thus ensuring the overall airtightness. The air pressure inside the high-voltage switchgear body 1 is detected by the air pressure sensor 6. When the air pressure sensor detects that the air pressure inside the high-voltage switchgear body 1 has reached a set critical value, the controller 8 controls the power supply to supply power to the electromagnet 5. When energized, the electromagnet 5 and the magnetic block 4 generate the same polarity. This automatically pops out the closing plate 3, opening the pressure relief passage 2, thus enabling rapid pressure relief.
[0021] Among them, a compression spring 9 is provided between the electromagnet 5 and the magnetic block 4, so that when the closing plate is closed, the compression spring is in a compression state, and when the closing plate is ejected, the closing plate is ejected under the joint action of the compression spring and the repulsive force of the electromagnet, so that the ejection distance is farther.
[0022] The magnetic block 4 is provided with a receiving groove 10 for receiving the compression spring 9 in a compressed state, so as to facilitate receiving the compression spring.
[0023] A rubber sealing ring 11 is provided around the pressure relief channel 2 to ensure that the connection has good waterproof performance.
[0024] The closing plate 3 is made of insulating material, which plays an insulating role.
[0025] During operation, this type of high-voltage switchgear with a pressure relief channel is provided with a pressure relief channel 2 connected to the inner cavity of the high-voltage switchgear main body 1 on the side panel of the pressure switchgear main body, and a closing plate 3 is also provided on the side panel for closing the pressure relief channel 2 when the high-voltage switchgear main body 1 is not under pressure relief. The closing plate 3 and the high-voltage switchgear main body 1 are firmly fixed together by the attraction between the unpowered electromagnet 5 and the magnetic block 4, so that the overall airtightness will not be destroyed, and the internal air pressure of the high-voltage switchgear main body 1 is detected by the air pressure sensor 6. When the air pressure sensor detects that the air pressure inside the high-voltage switchgear main body 1 reaches the set critical value, the controller 8 controls the power supply to supply power to the electromagnet 5, and the same polarity is generated between the energized electromagnet 5 and the magnetic block 4, so that the closing plate 3 is automatically popped out and the pressure relief channel 2 is opened, so that rapid pressure relief can be performed.
[0026] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A high-voltage switchgear with a pressure relief channel, characterized in that: The invention comprises a high-voltage switch cabinet body (1), wherein a pressure relief channel (2) communicating with the inner cavity of the high-voltage switch cabinet body (1) is provided on a side panel of the high-voltage switch cabinet body (1), and a closing plate (3) for closing the pressure relief channel (2) when the high-voltage switch cabinet body (1) is not releasing pressure is provided on the side panel, and the closing plate (3) and the side panel are connected via a bouncing mechanism, and the bouncing mechanism comprises a magnetic block (4) provided on the closing plate (3) and an electromagnet (5) provided on the inner wall of the high-voltage switch cabinet body (1), and when no power is applied, the magnetic block (4) and the electromagnet (5) are adsorbed, and an air pressure sensor (6) and a power supply (7) are further provided in the high-voltage switch cabinet body (1), wherein the air pressure sensor (6) is used to detect the air pressure inside the high-voltage switch cabinet body (1), and the high-voltage switch cabinet body (1) is further provided with a controller (8), wherein the power supply (7) is connected to the electromagnet (5) via the controller (8), and the air pressure sensor (6) is connected to the controller (8).
2. A high-voltage switchgear with a pressure relief channel according to claim 1, characterized in that: When the air pressure sensor (6) detects that the air pressure inside the high-voltage switch cabinet body (1) reaches a set critical value, the controller (8) controls the power supply to supply power to the electromagnet (5), and the same polarity is generated between the electromagnet (5) and the magnetic block (4) after power is supplied.
3. The high-voltage switchgear with a pressure relief channel according to claim 1, characterized in that: A compression spring (9) is provided between the electromagnet (5) and the magnetic block (4).
4. The high-voltage switchgear with a pressure relief channel according to claim 3, characterized in that: The magnetic block (4) is provided with a receiving groove (10) for receiving the compression spring (9) in a compressed state.
5. The high-voltage switchgear with a pressure relief channel according to claim 1, characterized in that: A rubber sealing ring (11) is provided on the circumference of the pressure relief channel (2).
6. The high-voltage switchgear with a pressure relief channel according to claim 5, characterized in that: The closing plate (3) is made of insulating material.