An arc discharge pressure relief device for an outdoor high voltage cabinet

Abstract

The utility model discloses an outdoor high -voltage cabinet's burning arc pressure -relief device, and pressure -relief device includes: base subassembly, passageway subassembly and apron subassembly, wherein, base subassembly is used for installing high -voltage cabinet, and the bottom of base subassembly and high -voltage cabinet forms the channel of linking up, passageway subassembly includes pressure -relief channel, and pressure -relief channel includes air intake and gas outlet, and air intake is communicated with the channel of linking up, and gas outlet is located high -voltage cabinet top surface and is communicated with the outside, apron subassembly is located gas outlet, and apron subassembly is used for controlling the opening and closing of gas outlet, and the utility model discloses a channel of linking up and pressure -relief channel are set up, and the pressure -relief airflow is led out the cabinet from high -voltage cabinet inside, and the direction of gas outlet controls the pressure -relief direction from below to top, makes the pressure -relief airflow discharge from high -voltage cabinet top, avoids the harm to the surrounding personnel and things. The utility model is applicable to the field of distribution cabinet pressure relief.

Claims

1. An arc-venting pressure relief device for an outdoor high-voltage switchgear, characterized in that, include: A base assembly is provided, and a high-voltage switchgear is installed on the base assembly, forming a connection channel between the base assembly and the bottom of the high-voltage switchgear. The channel assembly includes a pressure relief channel, which includes an air inlet and an air outlet. The air inlet is connected to the connecting channel, and the air outlet is located on the top surface of the high-voltage cabinet and connects to the outside. A cover plate assembly is disposed at the air outlet, and the cover plate assembly is used to control the opening and closing of the air outlet.

2. The arc-relieving device according to claim 1, characterized in that: The pressure relief channel forms a hollow drainage cavity, which extends vertically.

3. The arc-relieving device according to claim 2, characterized in that: The drainage cavity is provided with a reinforcing structure, which includes a plurality of reinforcing ribs that are sequentially connected and enclosed along the circumference of the drainage cavity.

4. The arc-relieving device according to claim 3, characterized in that: The reinforcing structure is provided in multiple ways, and the multiple reinforcing structures are arranged at uniform intervals along the extension direction of the drainage cavity.

5. The arc-relieving device according to any one of claims 1 to 4, characterized in that: The pressure relief channel is located inside the high-voltage cabinet, and the pressure relief channel is a rectangular tubular structure.

6. The arc-relieving device according to claim 1, characterized in that: The cover assembly includes a buffer plate that covers the air outlet. One side of the buffer plate is rotatably connected to the top of the high-voltage cabinet. When the buffer plate is impacted by airflow from the pressure relief channel, the buffer plate flips and lifts up.

7. The arc-relieving device according to claim 6, characterized in that: The cover plate assembly also includes an elastic element, which is located on the side of the buffer plate away from the rotatable connection position of the buffer plate. The elastic element is connected to the buffer plate and the high-voltage cabinet respectively, and is used to drive the buffer plate to move toward the high-voltage cabinet.

8. The arc-relieving device according to claim 7, characterized in that: The elastic element is a thin plate structure, with both ends of the thin plate structure fixed to the top surface of the high-voltage cabinet. A fixed gap is formed between the thin plate structure and the top surface of the high-voltage cabinet, and one side of the buffer plate extends into the fixed gap.

9. The arc-relieving device according to claim 1, characterized in that: The base assembly includes a base plate, which has multiple mounting positions arranged side by side.

10. The arc-relieving device according to claim 9, characterized in that: The high-voltage switchgear is provided in multiple units, and the multiple high-voltage switchgear are fixedly installed in multiple mounting positions by bolts.

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