Anti-deflagration high-voltage switch cabinet

Abstract

The utility model relates to the technical field of switch cabinets, in particular to an anti-deflagration high-voltage switch cabinet which comprises a shell, a cabinet door is mounted on one side of the shell through hinges, the other side of the cabinet door is fixed on the shell through a lock catch, a controller is mounted on one side, close to the shell, of the cabinet door, the controller is connected with an external power supply through a wire, and a box body is mounted on one side of the shell. A gas collecting pipe is installed on the side face of the shell, a plurality of gas conveying pipes are installed on the side face of the gas collecting pipe, the tail ends of the gas conveying pipes penetrate through the box body and are connected with openings of the gas cylinders, and an exhaust pipe is installed at one end of the gas collecting pipe. Opening and closing of the electric control valve can be controlled through the controller, when the smoke sensor detects combustion of components in the shell, the controller can open the electric control valve, carbon dioxide gas in the gas cylinder is conveyed to the spray head through the gas conveying pipe, the gas collecting pipe and the exhaust pipe to be sprayed out, a fire source is extinguished, and deflagration is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, in particular to an explosion-proof high-voltage switch cabinet. Background Art

[0002] High-voltage switchgear refers to the switchgear used for switching, controlling or protecting in power generation, transmission, distribution, energy conversion and consumption of power systems.

[0003] Since a large number of electrical components are installed inside the high-voltage switch cabinet, when a short circuit or other fault occurs, the electrical components will generate a large amount of heat in a short period of time and then burn. However, when the internal components of the existing high-voltage switch cabinet fail and burn, the staff needs to find out and take the fire extinguisher placed outside the switch cabinet to put out the fire, or wait until the fire inside the switch cabinet spreads to the outside before the building's own fire protection system can be used to put out the fire. The switch cabinet cannot be prevented from deflagration, and the fire extinguisher is directly placed in a container fixed to the outside of the switch cabinet. If it is not fixed, the fire extinguisher is easy to tip over, affecting its use. For this reason, we propose an anti-explosion high-voltage switch cabinet. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings in the prior art and proposes an explosion-proof high-voltage switch cabinet.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme: design an explosion-proof high-voltage switch cabinet, including a shell, a cabinet door is installed on one side of the shell through a hinge, the other side of the cabinet door is fixed to the shell through a lock, a controller is installed on the side of the cabinet door close to the shell, and the controller is connected to an external power supply through a wire;

[0006] A box is installed on one side of the shell, and several gas cylinders are evenly spaced inside the box. A gas collecting pipe is installed on the side of the shell, and several gas delivery pipes are installed on the side of the gas collecting pipe. The end of the gas delivery pipe runs through the box and is connected to the opening of the gas cylinder. An exhaust pipe is installed at one end of the gas collecting pipe. The exhaust pipe is fixed at the top of the shell, and several nozzles are evenly spaced on the side of the exhaust pipe, and the nozzles face the components installed inside the shell.

[0007] An electric control valve is installed on the gas transmission pipe, a smoke sensor is installed on one side of the inner shell, and the controller is connected to the smoke sensor and the electric control valve through wires respectively;

[0008] A plurality of pairs of limit plates are equidistantly installed on one side of the box body, and a receiving groove is formed between each pair of limit plates, and the gas cylinder body is located in the receiving groove;

[0009] A box door is installed on one side of the box body through a hinge, and a strip fixing plate is installed on the side of the box door close to the box body. A plurality of arc grooves are opened on the side of the strip fixing plate. When the box door is closed, the arc grooves are sleeved on the corresponding gas cylinder body.

[0010] Preferably, a connecting block is installed on the side of the box door, one end of the connecting block extends to the outside of the box door, a through groove is opened at the top end of the connecting block, a strip connecting plate is slidably connected to the inside of the through groove, and both ends of the strip connecting plate extend to the outside of the through groove, a first locking block is installed on the top of the strip connecting plate, the first locking block is arranged in an "L" shape, and a second locking block is installed on one side of the box body, the second locking block is arranged in an "L" shape, and a slide groove is formed between the second locking block and the box body, and one end of the first locking block extends into the slide groove.

[0011] Preferably, an anti-slip block is installed at the bottom of the strip-shaped connecting plate, and the size of the anti-slip block is larger than the size of the through slot.

[0012] Preferably, an air pressure sensor is also installed on each gas pipeline, the air pressure sensor is located between the electric control valve and the gas cylinder, and the air pressure sensor is connected to the controller through a wire.

[0013] Preferably, a sound and light alarm is installed on the top of the housing, and the sound and light alarm is connected to the controller through a wire.

[0014] Preferably, a plurality of heat dissipation slots are equidistantly provided on one side of the top of the housing.

[0015] Preferably, the smoke sensor is located below the heat dissipation slot.

[0016] The design scheme proposed by the utility model has the following beneficial effects during application:

[0017] 1. The opening and closing of the electric control valve can be controlled by the controller. When the smoke sensor detects that the components inside the shell are burning, the controller can open the electric control valve to transport the carbon dioxide gas in the gas cylinder through the gas pipe, gas collecting pipe and exhaust pipe to the nozzle for spraying, extinguishing the fire source and preventing explosion.

[0018] 2. The box door can be fixed on the box body through the cooperation of the first locking block and the second locking block, and then the gas cylinder can be fixed under the action of the strip fixing plate and the limit plate to prevent the gas cylinder from tipping over and improve the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is the structural front view of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the connecting block and the first locking block of the utility model.

[0022] In the figure: 1. cabinet door; 2. controller; 3. smoke sensor; 4. exhaust pipe; 5. sound and light alarm; 6. gas collecting pipe; 7. gas pipe; 8. box body; 9. box door; 10. electric control valve; 11. air pressure sensor; 12. gas cylinder; 13. arc groove; 14. strip fixing plate; 15. connecting block; 16. first locking block; 17. limit plate; 18. second locking block; 19. strip connecting plate; 20. nozzle; 21. anti-dropping block; 22. heat dissipation groove; 23. shell; 24. through groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-Figure 3 , an explosion-proof high-voltage switch cabinet, including a shell 23, a cabinet door 1 is installed on one side of the shell 23 through a hinge, and the other side of the cabinet door 1 is fixed to the shell 23 through a lock. A controller 2 is installed on the side of the cabinet door 1 close to the shell 23, and the controller 2 is connected to an external power supply through a wire. The controller 2 is a control mainboard or a host. The cabinet door 1 can be fixed to the shell 23 through the lock to cover the opening of the shell 23, so that the controller 2 is located in the shell 23, and the cabinet door 1 can protect the controller 2 and other components in the shell 23;

[0025] like Figure 1 and Figure 2 As shown, a box body 8 is installed on one side of the shell 23, and a plurality of gas cylinders 12 are evenly spaced inside the box body 8. A gas collecting pipe 6 is installed on the side of the shell 23, and a plurality of gas delivery pipes 7 are installed on the side of the gas collecting pipe 6. The end of the gas delivery pipe 7 passes through the box body 8 and is connected to the opening of the gas cylinder 12. An exhaust pipe 4 is installed on one end of the gas collecting pipe 6. The exhaust pipe 4 is fixed to the top of the shell 23, and a plurality of nozzles 20 are evenly spaced on the side of the exhaust pipe 4. The nozzles 20 face the components installed inside the shell 23. An electric control valve 10 is installed on the gas delivery pipe 7. A smoke sensor is installed on one side of the shell 23. The controller 2 is connected to the smoke sensor 3 and the electric control valve 10 through wires. In actual use, when combustion occurs due to a short circuit of components in the housing 23, the smoke sensor 3 can detect the smoke in the housing 23 and transmit the detection data to the controller 2. The controller 2 then controls the electric control valve 10 to open, and the high-pressure carbon dioxide in the gas cylinder 12 is transported to the exhaust pipe 4 through the gas supply pipe 7 and the gas collecting pipe 6, and finally sprayed into the housing 23 through the nozzle 20, so that the interior of the housing 23 is filled with carbon dioxide, the ignition point is separated from the oxygen, and the fire source is extinguished.

[0026] It should be noted that a sound and light alarm 5 is installed on the top of the housing 23, and the sound and light alarm 5 is connected to the controller 2 through a wire. In this way, when a fire occurs, the controller 2 will synchronously control the sound and light alarm 5 to work after receiving the data transmitted by the smoke sensor 3. The sound and light alarm 5 will emit an alarm to remind the staff.

[0027] like Figure 1 As shown, a plurality of pairs of limit plates 17 are equidistantly installed on one side of the box body 8, and a receiving groove is formed between each pair of limit plates 17. The body of the gas cylinder 12 is located in the receiving groove. The gas cylinder 12 can be limited by the limit plates 17, so that the gas cylinder 12 can be kept in a preset position when the gas cylinder 12 is installed.

[0028] like Figure 1 As shown, a box door 9 is installed on one side of the box body 8 through a hinge, and a strip fixing plate 14 is installed on the side of the box door 9 close to the box body 8. A plurality of arc grooves 13 are opened on the side of the strip fixing plate 14. When the box door 9 is closed, the arc grooves 13 are sleeved on the corresponding gas cylinders 12. In actual use, after closing the box door 9, the arc grooves 13 are sleeved on the gas cylinders 12, so that the strip fixing plate 14 will be against the gas cylinders 12 to fix the gas cylinders 12, and the fixation is convenient.

[0029] like Figure 1 and Figure 3 As shown, a connecting block 15 is installed on the side of the box door 9, one end of the connecting block 15 extends to the outside of the box door 9, a through slot 24 is opened at one end of the top of the connecting block 15, a strip connecting plate 19 is slidably connected inside the through slot 24, and both ends of the strip connecting plate 19 extend to the outside of the through slot 24, a first locking block 16 is installed on the top of the strip connecting plate 19, the first locking block 16 is set in an "L" shape, and a second locking block 18 is installed on one side of the box body 8, the second locking block 18 is set in an "L" shape, and the second locking block 18 is locked with the box body 8, one end of the first locking block 16 extends into the sliding groove. In actual use, before closing the box door 9, the first locking block 16 is pulled upward first so that the bottom end of the first locking block 16 moves to the top of the connecting block 15. In this way, after closing the box door 9, the first locking block 16 will move to the top of the sliding groove formed by the second locking block 18 and the side wall of the box body 8, and then the first locking block 16 is released. Under the action of gravity, the bottom of the first locking block 16 will be inserted into the sliding groove, fixing the box door 9 on the box body 8, which is convenient for fixing.

[0030] If explanation is required, Figure 3 As shown, an anti-dropping block 21 is installed at the bottom of the strip connecting plate 19 , and the size of the anti-dropping block 21 is larger than the size of the through slot 24 , so that when the first locking block 16 is pulled upward, the strip connecting plate 19 will not drop out of the through slot 24 .

[0031] Specifically, when the utility model is in use, the staff places the gas cylinder 12 between the corresponding limit plates 17, and then connects the end of the gas pipe 7 to the opening of the gas cylinder 12. The air pressure sensor 11 is connected to the inside of the gas cylinder 12 to detect the air pressure inside the gas cylinder 12. Then the staff closes the box door 9 and inserts the first locking block 16 into the slide groove formed by the second locking block 18 and the side wall of the box body 8. When the box door 9 is closed, the arc groove 13 will be sleeved on the corresponding gas cylinder 12, and then the gas cylinder 12 can be fixed by the strip fixing plate 14 to prevent the gas cylinder 12 from tipping over. When the components in the shell 23 burn due to a short circuit or other faults, the smoke sensor 3 will detect the smoke generated by the burning components in the shell 23 and transmit the detection data to the controller 2. The controller 2 controls the sound and light alarm 5 to alarm and controls the electric control valve 10 to open. The high-pressure carbon dioxide gas in the gas cylinder 12 will be transported to the exhaust pipe 4 through the gas supply pipe 7 and the gas collecting pipe 6. Finally, the carbon dioxide gas is sprayed into the interior of the shell 23 through the nozzle 20, so that the interior of the shell 23 is filled with carbon dioxide, which separates the fire source from oxygen and completes the fire extinguishing.

[0032] Furthermore, if Figure 1 As shown, an air pressure sensor 11 is also installed on each gas pipeline 7. The air pressure sensor 11 is located between the electric control valve 10 and the gas cylinder 12, and the air pressure sensor 11 is connected to the controller 2 through a wire. During actual use, the air pressure sensor 11 will detect the air pressure in the gas cylinder 12 and transmit the detection data to the controller 2. When the internal pressure of the gas cylinder 12 decreases, the controller 2 can control the sound and light alarm 5 to alarm, reminding the staff to inspect the connection part of the gas cylinder 12.

[0033] A plurality of heat dissipation grooves 22 are equidistantly provided on one side of the top of the housing 23, and the smoke sensor 3 is located below the heat dissipation grooves 22. The heat generated by the components inside the housing 23 can be dissipated through the heat dissipation grooves 22 under normal circumstances, and when the components burn, the generated smoke will be discharged along the heat dissipation grooves 22, and the smoke sensor 3 will detect the smoke during the discharge process.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An explosion-proof high-voltage switch cabinet, comprising a housing (23), characterized in that: A cabinet door (1) is installed on one side of the housing (23) via a hinge, and the other side of the cabinet door (1) is fixed to the housing (23) via a lock. A controller (2) is installed on the side of the cabinet door (1) close to the housing (23), and the controller (2) is connected to an external power supply via a wire. A box body (8) is installed on one side of the outer shell (23), a plurality of gas cylinders (12) are equidistantly arranged inside the box body (8), a gas collecting pipe (6) is installed on the side of the outer shell (23), a plurality of gas delivery pipes (7) are installed on the side of the gas collecting pipe (6), the ends of the gas delivery pipes (7) pass through the box body (8) and are connected to the openings of the gas cylinders (12), an exhaust pipe (4) is installed on one end of the gas collecting pipe (6), the exhaust pipe (4) is fixed to the top end of the inner shell (23), and a plurality of nozzles (20) are equidistantly installed on the side of the exhaust pipe (4), and the nozzles (20) face the components installed inside the outer shell (23); An electric control valve (10) is installed on the gas transmission pipe (7), a smoke sensor (3) is installed on one side of the inner part of the housing (23), and the controller (2) is connected to the smoke sensor (3) and the electric control valve (10) respectively through wires; A plurality of pairs of limit plates (17) are equidistantly installed on one side of the box body (8), and a receiving groove is formed between each pair of limit plates (17), and the body of the gas cylinder (12) is located in the receiving groove; A box door (9) is installed on one side of the box body (8) through a hinge, and a strip fixing plate (14) is installed on the side of the box door (9) close to the box body (8). A plurality of arc grooves (13) are opened on the side of the strip fixing plate (14). When the box door (9) is closed, the arc grooves (13) are sleeved on the corresponding gas cylinder (12).

2. The explosion-proof high-voltage switchgear according to claim 1, characterized in that: A connecting block (15) is installed on the side of the box door (9), one end of the connecting block (15) extends to the outside of the box door (9), a through groove (24) is opened at one end of the top of the connecting block (15), a strip connecting plate (19) is slidably connected inside the through groove (24), and both ends of the strip connecting plate (19) extend to the outside of the through groove (24), a first locking block (16) is installed on the top of the strip connecting plate (19), the first locking block (16) is arranged in an "L" shape, and a second locking block (18) is installed on one side of the box body (8), the second locking block (18) is arranged in an "L" shape, and a sliding groove is formed between the second locking block (18) and the box body (8), and one end of the first locking block (16) extends into the sliding groove.

3. The explosion-proof high-voltage switchgear according to claim 2, characterized in that: An anti-dropping block (21) is installed at the bottom of the strip-shaped connecting plate (19), and the size of the anti-dropping block (21) is larger than the size of the through slot (24).

4. The explosion-proof high-voltage switchgear according to claim 1, characterized in that: Each gas delivery pipe (7) is also equipped with an air pressure sensor (11), the air pressure sensor (11) is located between the electric control valve (10) and the gas cylinder (12), and the air pressure sensor (11) is connected to the controller (2) via a wire.

5. The explosion-proof high-voltage switchgear according to claim 1, characterized in that: A sound and light alarm (5) is installed on the top of the housing (23), and the sound and light alarm (5) is connected to the controller (2) through a wire.

6. The explosion-proof high-voltage switchgear according to claim 1, characterized in that: A plurality of heat dissipation slots (22) are equidistantly arranged on one side of the top of the housing (23).

7. The explosion-proof high-voltage switchgear according to claim 6, characterized in that: The smoke sensor (3) is located below the heat dissipation slot (22).

Images