Intelligent high-voltage environment-friendly gas-filled cabinet

Abstract

The utility model provides a kind of intelligent high-pressure environmental protection inflatable cabinet, including mechanism box, gas tank and pressure relief chamber, the mechanism box and gas tank are installed in the upper end of pressure relief chamber, the gas tank is installed in the back of mechanism box, the front of mechanism box is flush with the front of pressure relief chamber, the lateral wall of pressure relief chamber is equipped with pressure relief port, the pressure relief port is equipped with pressure relief device, when the arc phenomenon occurs in the inside of pressure relief chamber, pressure relief effect is carried out, by being provided with pressure relief device on pressure relief chamber, pressure relief device can timely carry out pressure relief when the arc phenomenon occurs in the inside of pressure relief chamber, avoid high-temperature and high-pressure gas to cause damage to inflatable cabinet and surrounding equipment, simultaneously, the setting of blocking device further improves the security of pressure relief device, prevents clamping column from flying out and hurting people, improves the overall security of inflatable cabinet.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage distribution cabinet technology, and in particular to an intelligent high-voltage environmentally friendly gas-filled cabinet. Background Technology

[0002] In power systems, high-voltage gas-filled switchgear is an important electrical device widely used in power distribution networks for control and protection of circuits. During operation, traditional high-voltage gas-filled switchgear may experience arcing due to internal faults. If the high-temperature and high-pressure gas generated by the arcing is not released in time, it will cause serious damage to the switchgear itself and surrounding equipment, and may even lead to safety accidents.

[0003] In addition, traditional gas-insulated cabinets also have certain shortcomings in terms of environmental protection and safety. The internal gas may have a certain impact on the environment, and some structures are not well designed in terms of depressurization. During depressurization, the depressurization device may scatter, causing injury to personnel.

[0004] To address these issues, a smart high-pressure environmentally friendly gas-filled cabinet is proposed. Utility Model Content

[0005] In order to overcome the shortcomings of existing technologies and solve the problem that if the high-temperature and high-pressure gas generated by the combustion arc cannot be released in time, it will cause serious damage to the gas filling cabinet itself and surrounding equipment, this utility model provides an intelligent high-pressure environmentally friendly gas filling cabinet.

[0006] This utility model is achieved using the following technical solution:

[0007] An intelligent high-pressure environmentally friendly gas-filled cabinet includes a mechanism box, a gas box, and a pressure relief chamber. The mechanism box and the gas box are installed at the upper end of the pressure relief chamber, and the gas box is installed at the rear of the mechanism box. The front of the mechanism box is flush with the front of the pressure relief chamber. The side wall of the pressure relief chamber is provided with a pressure relief port, and a pressure relief device is provided at the pressure relief port. The pressure relief device performs pressure relief when an arcing phenomenon occurs inside the pressure relief chamber.

[0008] The pressure relief device includes a pressure relief plate, and a locking block is provided around the pressure relief port. The locking block is integrated with the pressure relief chamber. The pressure relief plate is provided with a matching locking groove around its perimeter. A locking post is provided in each locking groove. A connecting post is fixed on the locking post. The outer peripheral wall of the connecting post is provided with threads. The locking post is threadedly connected to the pressure relief plate through the connecting post.

[0009] The card block is provided with a through hole for installing the clamping post. The clamping post is conical, and its diameter gradually increases from one end of the connecting post. The pressure relief plate and the pressure relief chamber are fixedly connected to the card block through the clamping post.

[0010] The back of the clamping post is provided with a blocking device, which includes a blocking rope and a limiting plate. The blocking rope is fixed to the end of the clamping post away from the connecting post, and the limiting plate is fixed to the end of the blocking rope.

[0011] The pressure relief plate has a sealing groove on its outer peripheral wall, and a sealing ring is provided in the sealing groove.

[0012] The gas chamber is filled with dry air or nitrogen.

[0013] The present invention has the following advantages over the prior art:

[0014] 1. By installing a pressure relief device on the pressure relief chamber, the pressure relief device can release pressure in time when an arcing phenomenon occurs inside the pressure relief chamber, avoiding damage to the gas cabinet and surrounding equipment caused by high temperature and high pressure gas. At the same time, the setting of the blocking device further improves the safety of the pressure relief device, prevents the clamping column from flying out and injuring people, and improves the overall safety of the gas cabinet.

[0015] 2. The mechanism box and gas box are filled with inert gas, or the gas box is filled with dry air or nitrogen. These gases have good environmental protection properties and will not cause pollution to the environment, which meets the environmental protection requirements of modern electrical equipment. Attached Figure Description

[0016] Figure 1 This is a front view of the utility model;

[0017] Figure 2 This is a side view of the present invention;

[0018] Figure 3 This is a three-dimensional structural diagram of the pressure relief chamber of this utility model;

[0019] Figure 4 This is an exploded three-dimensional structural diagram of the pressure relief chamber of this utility model;

[0020] Figure 5 This is a three-dimensional structural schematic diagram of the pressure relief plate of this utility model;

[0021] Figure 6 This is a schematic diagram of the blocking device of this utility model;

[0022] In the diagram: 1. Mechanism box; 2. Air box; 3. Pressure relief chamber; 4. Pressure relief plate; 41. Sealing groove; 42. Slot; 5. Sealing ring; 6. Barrier device; 61. Clamping post; 62. Connecting post; 63. Barrier rope; 64. Limiting plate; 7. Clamping block; 71. Pressure relief port. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figures 1 to 6 As shown, an intelligent high-pressure environmentally friendly gas-filled cabinet includes a mechanism box 1, a gas box 2, and a pressure relief chamber 3. The mechanism box 1 and the gas box 2 are installed at the upper end of the pressure relief chamber 3, and the gas box 2 is installed at the rear of the mechanism box 1. The front of the mechanism box 1 is flush with the front of the pressure relief chamber 3. This layout is compact, easy to install and maintain, and also facilitates the coordinated work between the components. The mechanism box 1 and the gas box 2 are filled with inert gas. The side wall of the pressure relief chamber 3 is provided with a pressure relief port 71, and a pressure relief device is provided at the pressure relief port 71. The pressure relief device performs pressure relief when an arcing phenomenon occurs inside the pressure relief chamber 3. When an arcing phenomenon occurs inside the pressure relief chamber 3, the pressure relief device can promptly perform pressure relief to prevent high-temperature and high-pressure gas from damaging the gas-filled cabinet and surrounding equipment.

[0026] The pressure relief device includes a pressure relief plate 4, and a locking block 7 is provided around the pressure relief port 71. The locking block 7 is integrated with the pressure relief chamber 3. The pressure relief plate 4 is provided with a matching locking groove 42 around its perimeter. Each locking groove 42 is provided with a locking post 61. A connecting post 62 is fixedly provided on the locking post 61. The outer peripheral wall of the connecting post 62 is provided with threads. The locking post 61 is threadedly connected to the pressure relief plate 4 through the connecting post 62.

[0027] The locking block 7 has a through hole for installing the locking pin 61. The locking pin 61 is tapered, with its diameter gradually increasing from one end of the connecting pin 62. The pressure relief plate 4 and the pressure relief chamber 3 are fixedly connected to the locking block 7 via the locking pin 61. During installation, the locking pin 61 is passed through the through hole on the locking block 7, and the connecting pin 62 is rotated to make the locking pin 61 and the locking block 7 fit tightly, thereby achieving a fixed connection between the pressure relief plate 4 and the pressure relief chamber 3. This connection method has a simple structure, is easy to install and disassemble, and facilitates the maintenance and replacement of the pressure relief device.

[0028] The back of the clamping post 61 is provided with a blocking device 6, which includes a blocking rope 63 and a limiting plate 64. The blocking rope 63 is fixed to the end of the clamping post 61 away from the connecting post 62, and the limiting plate 64 is fixed to the end of the blocking rope 63. When the clamping post 61 falls off the clamping block 7 for some reason, the blocking rope 63 and the limiting plate 64 can play a blocking role, preventing the clamping post 61 from flying out and causing injury to surrounding personnel and equipment, thus improving the safety of the pressure relief device.

[0029] A sealing groove 41 is provided on the outer peripheral wall of the pressure relief plate 4, and a sealing ring 5 is provided in the sealing groove 41. The sealing ring 5 can effectively improve the sealing between the pressure relief plate 4 and the pressure relief chamber 3, prevent gas leakage, and ensure the normal operation of the gas filling cabinet.

[0030] The gas chamber 2 is filled with dry air or nitrogen. Inert gases have good chemical stability and are not prone to chemical reactions with other substances, which can effectively reduce the safety hazards caused by chemical reactions inside the gas chamber. At the same time, it is environmentally friendly and meets environmental protection requirements.

[0031] The working principle of this utility model is as follows: When a fault occurs inside the gas cabinet, such as a short circuit or insulation breakdown, it may cause an arcing phenomenon. The high temperature and high pressure gas generated by the arcing will quickly accumulate in the pressure relief chamber 3, causing the pressure in the pressure relief chamber 3 to rise sharply.

[0032] As the pressure inside the pressure relief chamber 3 continues to rise, when the pressure exceeds the friction and clamping force between the clamping pin 61 and the clamping block 7, the clamping pin 61 begins to move outward from the through hole on the clamping block 7. Since the clamping pin 61 has a conical structure, its diameter gradually increases from the end of the connecting pin 62. Under the action of pressure, the fit between the clamping pin 61 and the clamping block 7 gradually loosens.

[0033] When the pressure reaches a certain level, the clamping pin 61 completely falls off the clamping block 7, the pressure relief plate 4 loses its fixation, and is quickly opened under the push of the internal high-pressure gas. The high-temperature and high-pressure gas is quickly discharged to the outside of the gas cabinet through the pressure relief port 71, thereby reducing the pressure in the pressure relief chamber 3, avoiding damage to other parts of the gas cabinet due to excessive pressure, and ensuring the safety of the gas cabinet.

[0034] During the process of the clamping post 61 falling off, the blocking device 6 plays a role. The blocking rope 63 restricts the range of motion of the clamping post 61 to prevent it from flying out and causing damage to surrounding personnel and equipment. The limiting plate 64 further increases the blocking area and improves the blocking effect.

[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An intelligent high-pressure environmentally friendly gas-filled cabinet, comprising a mechanism box (1), a gas box (2), and a pressure relief chamber (3), wherein the mechanism box (1) and the gas box (2) are installed at the upper end of the pressure relief chamber (3), the gas box (2) is installed at the rear of the mechanism box (1), and the front of the mechanism box (1) is flush with the front of the pressure relief chamber (3), characterized in that, The pressure relief chamber (3) has a pressure relief port (71) on its side wall. A pressure relief device is provided at the pressure relief port (71). The pressure relief device performs pressure relief when an arcing phenomenon occurs inside the pressure relief chamber (3).

2. The intelligent high-pressure environmentally friendly gas-filled switchgear according to claim 1, characterized in that: The pressure relief device includes a pressure relief plate (4), and a locking block (7) is provided around the pressure relief port (71). The locking block (7) is integrated with the pressure relief chamber (3). The pressure relief plate (4) is provided with a matching locking groove (42) around its perimeter. Each locking groove (42) is provided with a locking post (61). A connecting post (62) is fixed on the locking post (61). The outer peripheral wall of the connecting post (62) is provided with threads. The locking post (61) is threadedly connected to the pressure relief plate (4) through the connecting post (62). The locking block (7) is provided with a through hole for installing the locking pin (61). The locking pin (61) is conical, and its diameter gradually increases from the end of the connecting pin (62). The pressure relief plate (4) and the pressure relief chamber (3) are fixedly connected to the locking block (7) through the locking pin (61).

3. The intelligent high-pressure environmentally friendly gas-filled switchgear according to claim 2, characterized in that: The back of the clamping post (61) is provided with a blocking device (6), which includes a blocking rope (63) and a limiting plate (64). The blocking rope (63) is fixed at the end of the clamping post (61) away from the connecting post (62), and the limiting plate (64) is fixed at the end of the blocking rope (63).

4. The intelligent high-pressure environmentally friendly gas-filled switchgear according to claim 2, characterized in that: The pressure relief plate (4) has a sealing groove (41) on its outer peripheral wall, and a sealing ring (5) is provided in the sealing groove (41).

5. The intelligent high-pressure environmentally friendly gas-filled switchgear according to claim 1, characterized in that: The gas box (2) is filled with dry air or nitrogen.

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