Pressure relief device of switch cabinet

Abstract

The utility model discloses a switch cabinet pressure relief device comprising a switch cabinet, one side of the switch cabinet is provided with a pressure relief channel, and a pressure relief cover is arranged above the pressure relief channel; the pressure relief cover is fixed to the top of the switch cabinet through a rotating shaft, a lap joint component is arranged between the pressure relief cover and the switch cabinet, and the rotating shaft and the lap joint component are used for pressure relief operation. According to the utility model, the pressure relief cover is fixed above the pressure relief channel of the switch cabinet through the rotating shaft, and the lap joint parts are fixed on the two sides of the pressure relief cover perpendicular to the rotating shaft direction, so that when internal high-pressure gas impacts the pressure relief cover, the lap joint parts are quickly broken, the pressure relief cover rotates along the rotating shaft to be opened, and the gas is quickly released from the pressure relief opening; the rotating shaft is fixed on the cabinet body, so that the pressure relief cover cannot fly out due to external force in the pressure relief process, and the timeliness and the safety of the pressure relief process are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, in particular to a pressure relief device for a switch cabinet. Background Art

[0002] Switchgear is a device used to control and protect electrical equipment in power systems. It is usually installed in power plants, substations, industrial and mining enterprises, etc. It mainly includes electrical components, control equipment, protection devices, etc., and is used to control, monitor and protect electrical equipment in power systems. The design and selection of switchgear must be determined according to the specific power system requirements and site environment to ensure the safe and reliable operation of electrical equipment.

[0003] When the equipment is aging, improperly operated, not maintained in time, or in harsh environmental conditions, arc burning will occur, accompanied by high temperature, radiation, and gas release, causing a sharp increase in energy in the local area of ​​the equipment, leading to dangerous situations such as fire, explosion, and even equipment damage. Therefore, it is necessary to release the gas to the outside through a pressure relief channel. The fixing bolts on the existing pressure relief cover will rust after a long period of use and cannot be opened in time, causing high-pressure gas to be retained inside the switch cabinet. Once the pressure of these gases exceeds the limit that the switch cabinet material can withstand, it will cause the switch cabinet to rupture, posing a serious threat to the safety of surrounding personnel and buildings. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and provide a switch cabinet pressure relief device.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions, including:

[0006] A switch cabinet, wherein a pressure relief channel is provided on one side of the switch cabinet, and a pressure relief cover is provided above the pressure relief channel;

[0007] The pressure relief cover is fixed to the top of the switch cabinet via a rotating shaft, and a lap joint component is provided between the pressure relief cover and the switch cabinet, and the rotating shaft and the lap joint component are used for performing a pressure relief operation.

[0008] As a further description of the above technical solution, a pressure relief port is provided above the pressure relief channel, and the pressure relief port abuts against the overlapping component.

[0009] As a further description of the above technical solution, the pressure relief cover is disc-shaped, and the diameter of the middle part of the pressure relief cover is larger than the diameters of the two sides.

[0010] As a further description of the above technical solution, the diameter of the middle part of the pressure relief cover is the same as that of the pressure relief port, and the diameters of the upper and lower sides of the pressure relief cover are 60%-80% of the pressure relief port.

[0011] As a further description of the above technical solution, the thickness of the pressure relief cover is 1-5 mm.

[0012] As a further description of the above technical solution, a swivel hole is opened in the middle of the pressure relief cover, and the rotating shaft passes through the swivel hole to fix the pressure relief cover on the switch cabinet.

[0013] As a further description of the above technical solution, the pressure relief cover and the rotating shaft share the same axis.

[0014] As a further description of the above technical solution, the overlapping parts are symmetrically arranged on both sides of the pressure relief cover, and the overlapping parts are perpendicular to the rotation axis.

[0015] As a further description of the above technical solution, the overlapping parts are in the shape of long strips.

[0016] As a further description of the above technical solution, the thickness of the overlapping component is one fifth of the pressure relief cover.

[0017] The beneficial effects of the utility model are as follows:

[0018] 1. In the utility model, the pressure relief cover is fixed above the pressure relief channel of the switch cabinet through a rotating shaft. The pressure relief cover is fixed with overlapping parts on both sides perpendicular to the rotating shaft. When the internal high-pressure gas impacts the pressure relief cover, the overlapping parts are quickly broken, and the pressure relief cover is rotated along the rotating shaft to open, and the gas will be quickly released from the pressure relief port. Since the rotating shaft is fixed on the cabinet body, the pressure relief cover will not fly out due to external force during the release process, thereby ensuring the timeliness and safety of the pressure relief process.

[0019] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the pressure relief device of the switch cabinet of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the pressure relief device of the utility model;

[0022] Figure 3 It is a front view of the pressure relief device of the utility model;

[0023] Figure 4 It is a side view of the pressure relief device of the utility model;

[0024] Figure 5 It is a top view of the pressure relief device of the utility model.

[0025] Reference numerals:

[0026] 1. Switch cabinet; 11. Pressure relief port; 2. Pressure relief channel; 3. Pressure relief cover; 31. Rotary shaft hole; 4. Rotary shaft; 5. Overlapping parts. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0028] like Figure 1-Figure 5 As shown, in one embodiment, a switch cabinet pressure relief device includes: a switch cabinet 1, a pressure relief channel 2 is provided on one side of the switch cabinet 1, and a pressure relief cover 3 and a pressure relief port 11 are provided above the pressure relief channel 2. The pressure relief cover 3 is fixed to the top of the switch cabinet 1 through a rotating shaft 4, and a pressure relief cover 3 and a pressure relief port 11 are provided on the top of the pressure relief channel 2.

[0029] The pressure relief cover 3 is firmly connected to the top of the switch cabinet 1 through the rotating shaft 4, and the overlapping parts 5 are installed between the switch cabinet 1. These overlapping parts 5 are in contact with the pressure relief port 11. The rotating shaft 4 cooperates with the overlapping parts 5, so that the pressure relief cover 3 can smoothly perform the pressure relief operation. Such a design ensures that the pressure inside the switch cabinet 1 can be effectively released when needed, ensuring the normal operation and safety of the equipment.

[0030] like Figure 1-Figure 5 As shown, in this embodiment, a swivel hole 31 is opened in the middle of the pressure relief cover 3, and the rotating shaft 4 passes through the swivel hole 31 to fix the pressure relief cover 3 on the switch cabinet 1, ensuring that the pressure relief cover 3 can rotate freely on the rotating shaft 4.

[0031] Specifically, the pressure relief cover 3 is made of aluminum alloy, stainless steel, galvanized steel plate, etc. It is disc-shaped, and the diameters of the upper and lower sides are slightly smaller than the diameter in the middle. Among them, the diameter in the middle of the pressure relief cover 3 is the same as the pressure relief port 11, while the diameters of the upper and lower sides are 60%-80% of the diameter of the pressure relief port 11 to ensure the tightness with the pressure relief port 11. The pressure relief cover 3 and the rotating shaft 4 share the same axis, which can ensure that the pressure relief cover 3 is stable and will not deviate during rotation. The thickness of the pressure relief cover 3 is 1-5mm to ensure sufficient strength and rigidity.

[0032] like Figure 1-Figure 5 As shown, in this embodiment, overlapping parts 5 are symmetrically arranged on both sides of the pressure relief cover 3 in a direction perpendicular to the rotation axis 4. These overlapping parts 5 are connected to the pressure relief cover 3 with easily broken materials, but are not connected to the switch cabinet 1 itself. Their function is to ensure that the pressure relief cover 3 is stably overlapped on the switch cabinet 1 to avoid tilting or instability.

[0033] Specifically, the overlapping part 5 is in the shape of an elongated strip, and the thickness of the overlapping part 5 is one fifth of the pressure relief cover 3. Without sacrificing stability, it ensures that the connection between the pressure relief cover 3 and the switch cabinet 1 will be broken first when necessary, thereby avoiding damage to the switch cabinet 1 itself or other components.

[0034] Working principle: When the internal high-pressure gas impacts the pressure relief cover 3, the overlap part 5 will break quickly, so that the pressure relief cover 3 can be rotated and opened along the rotating shaft 4, allowing the high-pressure gas to be quickly released from the pressure relief port 11. At the same time, since the rotating shaft 4 is firmly fixed to the cabinet, this ensures that during the release process, the pressure relief cover 3 will not fly out due to external force, thereby ensuring the timeliness and safety of the pressure relief process. This design can effectively control the gas outflow speed when an unexpected pressure release occurs, prevent the pressure relief cover 3 from being subjected to excessive impact or flying out, and ensure the safe and reliable conduct of the pressure relief process.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A switch cabinet pressure relief device, characterized in that: include: A switch cabinet (1), wherein a pressure relief channel (2) is provided on one side of the switch cabinet (1), and a pressure relief cover (3) is provided above the pressure relief channel (2); The pressure relief cover (3) is fixed to the top of the switch cabinet (1) via a rotating shaft (4); a lap joint component (5) is provided between the pressure relief cover (3) and the switch cabinet (1); and the rotating shaft (4) and the lap joint component (5) are used for performing a pressure relief operation.

2. The switch cabinet pressure relief device according to claim 1, characterized in that: A pressure relief port (11) is provided above the pressure relief channel (2), and the pressure relief port (11) abuts against the overlapping component (5).

3. The switch cabinet pressure relief device according to claim 1, characterized in that: The pressure relief cover (3) is in the shape of a disk, and the diameter of the middle part of the pressure relief cover (3) is larger than the diameters of the two sides.

4. The switch cabinet pressure relief device according to claim 1, characterized in that: The diameter of the middle part of the pressure relief cover (3) is the same as that of the pressure relief port (11), and the diameters of the upper and lower sides of the pressure relief cover (3) are 60%-80% of the pressure relief port (11).

5. The switch cabinet pressure relief device according to claim 1, characterized in that: The thickness of the pressure relief cover (3) is 1-5 mm.

6. The switch cabinet pressure relief device according to claim 1, characterized in that: A swivel hole (31) is provided in the middle of the pressure relief cover (3), and the rotating shaft (4) passes through the swivel hole (31) to fix the pressure relief cover (3) on the switch cabinet (1).

7. The switch cabinet pressure relief device according to claim 1, characterized in that: The pressure relief cover (3) and the rotating shaft (4) share the same axis.

8. The switch cabinet pressure relief device according to claim 1, characterized in that: The overlapping parts (5) are symmetrically arranged on both sides of the pressure relief cover (3), and the overlapping parts (5) are perpendicular to the rotating shaft (4).

9. The switch cabinet pressure relief device according to claim 1, characterized in that: The overlapping part (5) is in the shape of an elongated strip.

10. The switch cabinet pressure relief device according to claim 1, characterized in that: The thickness of the overlapping component (5) is one fifth of the thickness of the pressure relief cover (3).

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