Novel high-voltage cabinet pressure relief structure
By designing a new pressure relief structure with rectangular pressure relief ports and slide rail structures in a high-pressure cabinet, the problem that traditional pressure relief devices cannot effectively release pressure and dangerous bounces are solved, and a safer pressure relief effect is achieved.
Patent Information
- Application Number
- CN202421483255.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The pressure relief device of a traditional high-pressure cabinet may not be able to effectively release pressure in the event of a failure, and the high-speed bounce of the pressure relief cover plate may damage the cabinet body and endanger the operator.
A new high-pressure cabinet pressure relief structure is designed, adopting a rectangular pressure relief port and a sliding rail structure. The rotating sealing plate arches when the internal pressure is high, opening the pressure relief port to ensure longitudinal leakage of gas and increase safety.
This design avoids damage to the cabinet body by the pressure relief cover plate, and reduces the risk to the operator through longitudinal pressure relief, improving the safety of pressure relief.
Smart Images
Figure CN222814143U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high-voltage cabinets, in particular to a novel pressure relief structure of a high-voltage cabinet. Background Art
[0002] In order to prevent the problem of circuit failure such as short circuit, which may cause the high voltage cabinet to heat up instantly, resulting in high voltage or even explosion, the traditional high voltage cabinet is equipped with pressure relief devices above the trolley room, busbar room and cable room. The pressure relief device is generally connected to the high pressure gas release channel in the cabinet. Its structure adopts a pressure relief cover plate, one side of which is fixed on the top cover with a solid screw or hinge, and the other side is fixed with a fixing that is easy to break under impact. When a fault occurs in the cabinet, the high temperature and high pressure will break the easy-to-break screws, and the pressure relief cover plate will flip open to release pressure and discharge gas. However, the above scheme has the following problems: First, the screws will age over time, and it is impossible to confirm whether they can maintain high temperature and high pressure before being stressed and broken. Second, when the hinge connection method releases pressure, the pressure cover plate will bounce up at high speed and hit the cabinet body, which will damage the cabinet body and the released gas will be ejected forward rapidly, which may easily cause injuries to the technicians who are operating. Therefore, a new type of high voltage cabinet pressure relief structure is proposed to solve the above problems. Utility Model Content
[0003] In view of the deficiencies in the prior art, the utility model provides a novel high-voltage cabinet pressure relief structure, which has the advantage of safe use.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel high-pressure cabinet pressure relief structure, including a cabinet body, a connecting channel is provided in the cabinet body, a pressure relief port connected to the pressure relief channel is opened on the cabinet body, the pressure relief port of the cabinet body is rectangular, and an extension part 1 and an extension part 2 are provided on the two side walls extending laterally, the extension part 1 and the extension part 2 extend toward the middle of the pressure relief port, and there is a gap between the two, and the gap forms a slide rail, and slide plates are slidably provided at both ends of the slide rail, and sealing plates are rotatably provided on the two slide plates, and the two sealing plates are rotatably connected, so that when the two slide plates move close to each other, the two sealing plates are driven to arch up and form a triangle away from the pressure relief port.
[0005] Furthermore, a support portion is provided at the lower end of the cabinet body and touches the ground, so that the lower end surface of the cabinet body is suspended in the air.
[0006] Furthermore, the second extension part is placed at a lower end of the extension part and goes over the first extension part, so that the sealing plate abuts against the second extension part when covering the pressure relief port.
[0007] Furthermore, the two sealing plates are arranged to be inclined toward one side of the pressure relief port to form a guide portion.
[0008] Furthermore, a plurality of pressure relief ports are provided on each outer wall of the cabinet, and each pressure relief port is disposed on the same vertical axis.
[0009] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0010] This new type of high-pressure cabinet pressure relief structure is equipped with two rotating connecting sealing plates. When the internal pressure is high, the sealing plate arches up and opens the pressure relief port. Compared with the cover plate that flips on one side, it will not damage the cabinet body. The arched sealing plate makes the pressure relief channel in the up and down direction. The high-temperature gas will not rush toward the construction workers horizontally but will be discharged vertically up and down, which increases the safety of pressure relief. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the appearance of the utility model;
[0012] Figure 2 This is an enlarged view of point A of the utility model;
[0013] Figure 3 This is a schematic diagram of the sealing plate structure of the utility model;
[0014] Figure 4 This is a schematic diagram of the structure of the utility model in which the slide plate is embedded in the slide rail after the sealing plate is removed;
[0015] Figure 5 This is a reference diagram for the use status of the utility model.
[0016] In the figure: 1, cabinet body; 11, supporting part; 12, pressure relief port; 121, extension part 1; 122, extension part 2; 123, slide rail; 2, sealing plate; 21, slide plate. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0018] See also Figure 1-5 A novel high-pressure cabinet pressure relief structure in the present application includes a cabinet body 1, a connecting channel is provided in the cabinet body 1, a pressure relief port 12 connected to the pressure relief channel is opened on the cabinet body 1, and the pressure relief port 12 of the cabinet body 1 is rectangular, and an extension part 121 and an extension part 2 122 are provided on both side walls extending laterally, and the extension part 121 and the extension part 2 122 extend from the middle part of the pressure relief port 12, and there is a gap between the two, and the gap forms a slide rail 123, and slide plates 21 are slidably provided at both ends of the slide rail 123, and sealing plates 2 are rotatably provided on the two slide plates 21, and the two sealing plates 2 are rotatably connected, so that when the two slide plates 21 move close to each other, the two sealing plates 2 are driven to arch up and form a triangle away from the pressure relief port 12.
[0019] The device is configured by sliding a slide plate 21 in a slide rail 123, and rotating and connecting two sealing plates 2 between the slide plates 21, so that when the internal pressure is high, the sealing plate 2 is impacted, and the sealing plate 2 has a tendency to arch, and then drives the two slide plates 21 to move in a similar manner until the sealing plate 2 arches and the pressure relief port 12 is opened. The slide plate 21 is wider than the sealing plate 2, so that when the sealing plate 2 blocks the pressure relief port 12, the slide plate 21 can also be plugged into the slide rail 123 and slidably connected thereto. Compared with the unilaterally flipped cover plate, the above-mentioned pressure relief design will not damage the cabinet 1, and the slide rail 123 extends horizontally, and the slide plate 21 drives the notch of the arched sealing plate 2, so that the pressure relief channel is in the up-and-down direction, and the high-temperature gas will not rush toward the construction personnel horizontally but will be discharged vertically up and down, thereby increasing the safety of pressure relief.
[0020] Furthermore, a support portion 11 is provided at the lower end of the cabinet 1 and touches the ground, so that the lower end surface of the cabinet 1 is suspended in the air.
[0021] In addition to the side wall of the cabinet 1, the device also has a pressure relief port 12 on the upper surface of the lower end surface of the cabinet 1. The support portion 11 touches the ground so that the lower end surface of the cabinet 1 is suspended, leaving a pressure relief space where the sealing plate 2 is arched. The support portion 11 has a notch (not shown in the figure) so that the released pressure will not accumulate at the bottom of the cabinet.
[0022] Furthermore, the second extension portion 122 is disposed at the lower end of the first extension portion 121 and exceeds the first extension portion 121 , so that the sealing plate 2 abuts against the second extension portion 122 when covering the pressure relief port 12 .
[0023] If the sealing plate 2 is fully matched with the pressure relief port 12, there will be a tiny gap during daily use, and impurities can easily enter the cabinet 1. The device sets the second extension part 122 to go over the first extension part 121, so that when the sealing plate 2 covers the pressure relief port 12, it abuts against the second extension part 122, thereby increasing the daily sealing of the device and avoiding unnecessary dust accumulation.
[0024] Furthermore, the two sealing plates 2 are arranged to be inclined toward one side of the pressure relief port 12 to form a guide portion (not shown in the figure).
[0025] The device sets the inner wall of the sealing plate 2 to be thick at both sides and thin in the middle, forming an eight-shaped shape, so that when the high-pressure gas impacts the sealing plate 2, it is easy to gather at the hinge of the two sealing plates 2 along the inner wall of the sealing plate 2, and the sealing plate 2 is arched to open the pressure relief channel.
[0026] Furthermore, a plurality of pressure relief ports 12 are provided on each outer wall of the cabinet 1 , and each pressure relief port 12 is disposed on the same vertical axis.
[0027] The device arranges the pressure relief ports 12 on the same vertical axis. When the sealing plate 2 is bent, the pressure relief ports are arranged relative to each other, and the discharged high-pressure gases can offset each other, thereby reducing the impact force.
[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A novel high-pressure cabinet pressure relief structure, comprising a cabinet body (1), wherein a connecting channel is provided in the cabinet body (1), and a pressure relief port (12) communicating with the pressure relief channel is provided on the cabinet body (1), characterized in that: The pressure relief port (12) of the cabinet (1) is rectangular, and an extension portion 1 (121) and an extension portion 2 (122) are provided on both side walls extending laterally. The extension portion 1 (121) and the extension portion 2 (122) extend toward the middle of the pressure relief port (12), and there is a gap between the two, forming a slide rail (123). Slide plates (21) are provided at both ends of the slide rail (123) for sliding movement. Both slide plates (21) are provided with a sealing plate (2) for rotation. The two sealing plates (2) are connected in rotation so that when the two slide plates (21) move close to each other, the two sealing plates (2) are driven to arch up and form a triangular shape away from the pressure relief port (12).
2. A novel high-voltage cabinet pressure relief structure according to claim 1, characterized in that: The lower end of the cabinet body (1) is provided with a support portion (11) that touches the ground, so that the lower end surface of the cabinet body (1) is suspended in the air.
3. The novel high-voltage cabinet pressure relief structure according to claim 1 is characterized in that: The second extension part (122) is placed at the lower end of the first extension part (121) and extends beyond the first extension part (121), so that the sealing plate (2) abuts against the second extension part (122) when covering the pressure relief port (12).
4. The novel high-voltage cabinet pressure relief structure according to claim 1 is characterized in that: The two sealing plates (2) are arranged to be inclined toward one side of the pressure relief port (12) to form a guide portion.
5. The novel high-voltage cabinet pressure relief structure according to claim 1 is characterized in that: A plurality of pressure relief ports (12) are provided on each outer wall of the cabinet body (1), and each pressure relief port (12) is placed on the same vertical axis.