Electrical control cabinet with separated flame-retardant structure

Abstract

The utility model discloses an electrical control cabinet with a separation flame-retardant structure, which comprises a cabinet body and a cabinet door capable of being sealed and closed, the top of the cabinet body is provided with an air outlet, the bottom of the cabinet body is provided with a plurality of air inlets, the air outlet is provided with a heat dissipation assembly capable of closing the air outlet, a fire extinguishing tank is arranged below the heat dissipation assembly, and the fire extinguishing tank is connected with the cabinet door. The cabinet body is internally provided with a vertical flow division inlet and outlet pipe, the flow division inlet and outlet pipe is communicated with a passage of the heat dissipation assembly and the fire extinguishing tank, the bottom of the cabinet body is provided with an air inlet prevention assembly, and when the interior of the cabinet body is on fire, the air inlet prevention assembly can close a plurality of air inlets firstly; the heat dissipation assembly can exhaust air in the cabinet body through the shunting inlet and outlet pipe and close the air outlet, and finally the fire extinguishing tank can conduct flame retardance and fire extinguishing on the interior of the cabinet body through the shunting inlet and outlet pipe.

Description

Technical Field

[0001] The utility model relates to the field of electric control cabinets, in particular to an electric control cabinet with a partitioned flame-retardant structure. Background Art

[0002] With the rapid economic development, electrical automation systems play an important role in the fields of industry and national defense, including the safety of electrical automation control cabinets. The control cabinet is a power supply device used to provide working electricity for power equipment. The long-term operation of its internal electronic components will cause the electrical components to age and even cause fires.

[0003] After searching, the utility model publication number is: CN216699129U. A compartmentalized automated electrical control cabinet with flame retardant and fire extinguishing function comprises a cabinet body, an operating chamber is arranged at the top of the inner cavity of the cabinet body, a fire extinguishing tank is arranged in the operating chamber, an air outlet pipe is installed on the fire extinguishing tank, and the air outlet pipe is connected to the fire extinguishing pipe through an electromagnetic valve, a controller is arranged on one side of the fire extinguishing tank, an installation chamber is arranged below the operating chamber, a partition is arranged in the installation chamber, and a baffle rail is symmetrically arranged on both sides of the installation chamber, a fire extinguishing port is arranged on one side of the baffle rail, and the fire extinguishing port is connected to the fire extinguishing pipe, a mounting plate is arranged at the rear side of the installation chamber, an exhaust port is arranged at the rear side of the mounting plate, air inlets are arranged on both sides of the cabinet body, and electric shutters are installed in the air inlet and the exhaust port, the structure is simple, the design is reasonable, the electric control cabinet can be managed in a compartmentalized manner, and at the same time, good targeted fire extinguishing measures are provided, thereby ensuring the safety of the equipment;

[0004] When a fire occurs inside the practical electric control cabinet, the cabinet can be closed to prevent oxygen from entering and the fire can be extinguished by a fire extinguisher. However, the oxygen inside the cabinet cannot be discharged in time, and the remaining oxygen in the cabinet can still provide conditions for combustion. Failure to extinguish the fire in time will lead to increased losses, and the fire extinguishing and flame retardant effect still needs to be improved. Utility Model Content

[0005] In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides an electrical control cabinet with a partitioned flame-retardant structure to solve the problem proposed in the background technology that the oxygen inside the cabinet cannot be discharged in time, the remaining oxygen in the cabinet can still provide conditions for combustion, and failure to extinguish the fire in time will lead to increased losses, and the fire extinguishing and flame-retardant effect still needs to be improved.

[0006] To solve the above technical problems, the utility model provides the following technical solutions: an electrical control cabinet with a separated flame-retardant structure, comprising a cabinet body and a cabinet door that can be sealed and closed, the cabinet body being provided with an air outlet on the top and a plurality of air inlets on the bottom, the air outlet being provided with a heat dissipation component that can close the air outlet, a fire extinguisher tank being provided below the heat dissipation component, the cabinet body being provided with a vertical shunt inlet and outlet pipe, the shunt inlet and outlet pipe being connected with the passage of the heat dissipation component and the fire extinguisher tank, the cabinet body being provided with an anti-inlet assembly at the bottom, when a fire occurs inside the cabinet body, the anti-inlet assembly can first close a plurality of air inlets, the heat dissipation assembly can discharge the air inside the cabinet body through the shunt inlet and outlet pipe and close the air outlet, and finally the fire extinguisher tank can perform flame retardant and fire extinguishing on the inside of the cabinet body through the shunt inlet and outlet pipe.

[0007] Preferably, a plurality of partitions equidistantly and parallelly arranged are fixed inside the cabinet, and a fire extinguishing chamber is provided above the top partition. The diversion inlet and outlet pipe vertically passes through one side of the plurality of partitions, and the two ends are respectively close to the top and the bottom of the cabinet. The diversion inlet and outlet pipe is provided with a plurality of inlets and outlets, and the plurality of inlets and outlets are respectively located below the plurality of partitions.

[0008] Preferably, a sealing frame is provided on one side of the cabinet door facing the cabinet body, the sealing frame is matched with the front opening of the cabinet body, the air outlet and the plurality of air inlets are provided with dustproof nets, and the bottom of the cabinet body is provided with a plurality of supporting legs.

[0009] Preferably, carbon dioxide is provided inside the fire extinguishing tank, and a fire extinguishing pipe is connected to the output end. A solenoid valve is provided near the fire extinguishing tank on the fire extinguishing pipe. A temperature detector and a smoke detector are fixed to the end of the fire extinguishing pipe, and the end of the fire extinguishing pipe is connected to the top of the diversion inlet and outlet pipe.

[0010] Preferably, the heat dissipation assembly includes a fan, a sealing cover and an air outlet pipe. The fan is seal-embedded at the air outlet with the air outlet end facing upward. The sealing cover is fixed at the air inlet end of the fan. One end of the air outlet pipe is through-connected to one side of the sealing cover, and the other end is through-connected to the middle section of the fire extinguishing pipe. A solenoid valve is also provided in the air outlet pipe.

[0011] Preferably, several of the air inlets are opened in a circular array at the bottom of the cabinet, and each air inlet is a regular hexagon, and the air inlet prevention assembly includes a support frame, a motor, a rotating shaft and a baffle plate, the support frame is fixed to the inner bottom of the cabinet and is located above the several air inlets, the motor is fixed to the top of the support frame, the rotating shaft is connected to the bottom bearing of the support frame and is connected to the motor transmission, the baffle plate is fixed to the rotating shaft and covers the top of the several air inlets, the baffle plate is provided with a several circular through holes in a circular array, the through holes are larger than the air inlets, and the number of the several through holes is consistent with the number of air inlets, when the baffle plate rotates, the several through holes can correspond to the several air inlets, and the baffle plate can cover the several air inlets.

[0012] Compared with the prior art, the utility model can achieve the following beneficial effects: the electric control cabinet of the utility model is provided with an air outlet at the top, a heat dissipation component with an openable and closable channel is provided at the air outlet, a fire extinguishing tank is provided below the heat dissipation component, a vertical shunt inlet and outlet pipe is provided on one side of the interior of the cabinet, wherein the heat dissipation component and the fire extinguishing tank are connected with the shunt inlet and outlet pipe together, an air inlet is provided at the bottom of the cabinet, an anti-wind inlet component is provided at the air inlet, wherein the heat dissipation component can extract the internal air through the shunt inlet and outlet pipe, and the temperature and smoke content of the air can be monitored during transportation, when the temperature and smoke conditions inside the cabinet reach the fire standard, the anti-wind inlet component can first close a number of air inlets, the heat dissipation component can discharge the air containing oxygen inside and make the interior of the cabinet tend to be vacuum, finally the channel of the heat dissipation component is closed to reduce the oxygen inside the cabinet to the greatest extent, and then the valve of the fire extinguishing tank is opened to gasify the carbon dioxide, and the carbon dioxide is discharged to various places inside the cabinet through the shunt inlet and outlet pipe for flame retardant and fire extinguishing; the utility model can discharge the oxygen in the cabinet to the greatest extent before extinguishing the fire, reduce the combustion conditions, and has a good flame retardant and fire extinguishing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the top of the cabinet of the utility model;

[0015] Figure 3 This is a schematic diagram of the bottom of the cabinet of the utility model;

[0016] Figure 4 This is a top view of the utility model when several air inlets are opened;

[0017] Figure 5 This is a top view of the utility model after several air inlets are closed;

[0018] Among them: 1. Cabinet body; 2. Cabinet door; 3. Sealing frame; 4. Air outlet; 5. Heat dissipation component; 6. Fan; 7. Sealing cover; 8. Air outlet pipe; 9. Solenoid valve; 10. Fire extinguisher tank; 11. Fire extinguishing pipe; 12. Temperature detector; 13. Smoke detector; 14. Diverter inlet and outlet pipe; 15. Inlet and outlet; 16. Dust net; 17. Air inlet; 18. Anti-wind inlet component; 19. Baffle; 20. Support frame; 21. Rotating shaft; 22. Motor; 23. Through hole; 24. Support leg; 25. Partition; 26. Fire extinguishing chamber. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0020] Embodiment:

[0021] like Figure 1-5 As shown, the utility model provides an electrical control cabinet with a separated flame-retardant structure, comprising a cabinet body 1 and a cabinet door 2 that can be sealed and closed, the cabinet body 1 is provided with an air outlet 4 on the top, and a plurality of air inlets 17 on the bottom, the air outlet 4 is provided with a heat dissipation component 5 that can close the air outlet 4, a fire extinguishing tank 10 is provided below the heat dissipation component 5, a vertical shunt inlet and outlet pipe 14 is provided inside the cabinet body 1, the shunt inlet and outlet pipe 14 is connected with the passage of the heat dissipation component 5 and the fire extinguishing tank 10, an anti-wind inlet component 18 is provided at the bottom of the cabinet body 1, when a fire occurs inside the cabinet body 1, the anti-wind inlet component 18 can first close the plurality of air inlets 17, the heat dissipation component 5 can discharge the air inside the cabinet body 1 through the shunt inlet and outlet pipe 14 and close the air outlet 4, and finally the fire extinguishing tank 10 can perform flame retardant and fire extinguishing on the inside of the cabinet body 1 through the shunt inlet and outlet pipe 14.

[0022] In this embodiment, specifically, a plurality of partitions 25 equidistant and parallel to each other are fixed inside the cabinet 1, and a fire extinguishing chamber 26 is provided above the uppermost partition 25, the split inlet and outlet pipe 14 vertically penetrates one side of the plurality of partitions 25, and the two ends are respectively close to the top and the bottom of the cabinet 1, and the split inlet and outlet pipe 14 is provided with a plurality of inlets and outlets 15, and the plurality of inlets and outlets 15 are respectively located below the plurality of partitions 25;

[0023] The plurality of inlets and outlets 15 of the split inlet and outlet pipe 14 are for evenly discharging the heat of the components stored between the partitions 25 and for evenly delivering the carbon dioxide in the fire extinguisher tank 10 to between the partitions 25 .

[0024] In this embodiment, specifically, a sealing frame 3 is provided on one side of the cabinet door 2 facing the cabinet body 1, and the sealing frame 3 matches the front opening of the cabinet body 1. The air outlet 4 and the plurality of air inlets 17 are provided with dustproof nets 16, and the bottom of the cabinet body 1 is provided with a plurality of supporting legs 24;

[0025] The sealing frame 3 may be made of rubber material to seal the cabinet door 2 and the cabinet body 1 .

[0026] In this embodiment, specifically, carbon dioxide is provided inside the fire extinguishing tank 10, and a fire extinguishing pipe 11 is connected to the output end. A solenoid valve 9 is provided near the fire extinguishing tank 10. A temperature detector 12 and a smoke detector 13 are fixed to the end of the fire extinguishing pipe 11. The end of the fire extinguishing pipe 11 is connected to the top of the shunt inlet and outlet pipe 14;

[0027] Among them, the fire extinguisher tank 10 is a common carbon dioxide fire extinguishing device, which can automatically open the valve to spray carbon dioxide gas when a fire occurs. The solenoid valve 9 of the fire extinguishing pipe 11 further prevents gas leakage and reduces the impact of the hot air transported by the diversion inlet and outlet pipe 14 on the valve body of the fire extinguisher tank 10.

[0028] In this embodiment, specifically, the heat dissipation assembly 5 includes a fan 6, a sealing cover 7 and an air outlet pipe 8. The fan 6 is sealed and embedded at the air outlet 4, and the air outlet end faces upward. The sealing cover 7 is fixed at the air inlet end of the fan 6. One end of the air outlet pipe 8 is connected to one side of the sealing cover 7, and the other end is connected to the middle section of the fire extinguishing pipe 11. A solenoid valve 9 is also provided in the air outlet pipe 8;

[0029] Among them, the solenoid valve 9 of the air outlet pipe 8 is used to open and close the passage between the air outlet pipe 8 and the fan 6 to prevent the external gas of the cabinet 1 from entering the interior of the cabinet 1 through the fan 6, the sealing cover 7, the air outlet pipe 8, the fire extinguishing pipe 11, and the diversion inlet and outlet pipe 14 during fire extinguishing.

[0030] In the present embodiment, specifically, several of the air inlets 17 are arranged in a circular array at the bottom of the cabinet 1, and each of the air inlets 17 is a regular hexagon. The air inlet prevention assembly 18 includes a support frame 20, a motor 22, a rotating shaft 21 and a baffle 19. The support frame 20 is fixed to the inner bottom of the cabinet 1 and is located above the several air inlets 17. The motor 22 is fixed to the top of the support frame 20. The rotating shaft 21 is connected to the bottom bearing of the support frame 20 and is transmission-connected to the motor 22. The baffle 19 is fixed to the rotating shaft 21 and covers the top of the several air inlets 17. The baffle 19 is provided with a several circular through holes 23 in a circular array. The through holes 23 are larger than the air inlets 17, and the number of the several through holes 23 is consistent with the number of air inlets 17. When the baffle 19 rotates, the several through holes 23 can correspond to the several air inlets 17, and the baffle can also cover the several air inlets 17.

[0031] Working principle: When electrical components are stored inside the cabinet 1, a large amount of heat will be generated. The fan 6 will keep working, sucking the hot air between the partitions 25 into the several inlets and outlets 15 of the diversion inlet and outlet pipes 14, and then sucking it into the fire extinguishing pipe 11 to the outlet pipe 8, and finally discharged through the sealing cover 7 and the fan 6. While the hot air is discharged, the temperature detector 12 and the smoke detector 13 will simultaneously monitor the smoke and temperature of the gas. When the standard required for fire extinguishing in the prior art is reached, the motor 22 of the air inlet prevention component 18 is started, and the motor 22 drives the shaft 21 and the baffle 19 to rotate, so that the baffle 19 is removed. The rest of the through hole 23 covers the plurality of air inlets 17, so that the plurality of air inlets 17 are closed. At this time, only the air outlet 4 is opened, and the fan 6 of the heat dissipation component 5 continues to work to extract the gas containing oxygen inside the cabinet 1, so that the interior of the cabinet 1 tends to be a vacuum, and then the solenoid valve 9 of the air outlet pipe 8 is closed to seal the cabinet 1, and the external gas no longer enters, and the solenoid valve 9 of the fire extinguishing pipe 11 is automatically opened, and the fire extinguishing tank 10 is automatically opened to allow the gas to enter the fire extinguishing pipe 11 and the diversion inlet and outlet pipe 14, and finally sent to between the plurality of partitions 25 through the plurality of inlets and outlets 15 to extinguish the fire source between the plurality of partitions 25.

[0032] 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. An electrical control cabinet with a partitioned flame-retardant structure, comprising a cabinet body (1) and a cabinet door (2) that can be sealed and closed, characterized in that: The cabinet (1) is provided with an air outlet (4) at the top and a plurality of air inlets (17) at the bottom. A heat dissipation component (5) capable of closing the air outlet (4) is provided at the air outlet (4). A fire extinguishing tank (10) is provided below the heat dissipation component (5). A vertical shunt inlet and outlet pipe (14) is provided inside the cabinet (1). The shunt inlet and outlet pipe (14) is connected to a passage between the heat dissipation component (5) and the fire extinguishing tank (10). An air inlet prevention component (18) is provided at the bottom of the cabinet (1). When a fire occurs inside the cabinet (1), the air inlet prevention component (18) can first close the plurality of air inlets (17). The heat dissipation component (5) can discharge the air inside the cabinet (1) through the shunt inlet and outlet pipe (14) and close the air outlet (4). Finally, the fire extinguishing tank (10) can perform flame retardant fire extinguishing on the inside of the cabinet (1) through the shunt inlet and outlet pipe (14).

2. The electrical control cabinet with a partitioned flame-retardant structure according to claim 1, characterized in that: A plurality of partitions (25) equidistantly arranged in parallel are fixed inside the cabinet (1), and a fire extinguishing chamber (26) is arranged above the uppermost partition (25). The diverter inlet and outlet pipe (14) vertically penetrates one side of the plurality of partitions (25), and the two ends are respectively close to the top and the bottom of the cabinet (1). The diverter inlet and outlet pipe (14) is provided with a plurality of inlets and outlets (15), and the plurality of inlets and outlets (15) are respectively located below the plurality of partitions (25).

3. The electrical control cabinet with a partitioned flame-retardant structure according to claim 1, characterized in that: A sealing frame (3) is provided on the side of the cabinet door (2) facing the cabinet body (1), and the sealing frame (3) is matched with the front opening of the cabinet body (1). The air outlet (4) and the plurality of air inlets (17) are provided with dustproof nets (16), and the bottom of the cabinet body (1) is provided with a plurality of supporting legs (24).

4. The electrical control cabinet with a partitioned flame-retardant structure according to claim 1, characterized in that: Carbon dioxide is provided inside the fire extinguishing tank (10), and a fire extinguishing pipe (11) is connected to the output end. A solenoid valve (9) is provided near the fire extinguishing tank (10) on the fire extinguishing pipe (11). A temperature detector (12) and a smoke detector (13) are fixed to the end of the fire extinguishing pipe (11). The end of the fire extinguishing pipe (11) is connected to the top of the diversion inlet and outlet pipe (14).

5. The electrical control cabinet with a partitioned flame-retardant structure according to claim 1, characterized in that: The heat dissipation component (5) comprises a fan (6), a sealing cover (7) and an air outlet pipe (8); the fan (6) is sealed and embedded in the air outlet (4) with the air outlet end facing upward; the sealing cover (7) is fixed at the air inlet end of the fan (6); one end of the air outlet pipe (8) is connected to one side of the sealing cover (7) and the other end is connected to the middle section of the fire extinguishing pipe (11); and a solenoid valve (9) is also provided in the air outlet pipe (8).

6. The electrical control cabinet with a partitioned flame-retardant structure according to claim 1, characterized in that: The plurality of air inlets (17) are arranged in a circular array at the bottom of the cabinet (1), and each air inlet (17) is in a regular hexagonal shape. The air inlet prevention assembly (18) comprises a support frame (20), a motor (22), a rotating shaft (21) and a baffle (19). The support frame (20) is fixed to the inner bottom of the cabinet (1) and is located above the plurality of air inlets (17). The motor (22) is fixed to the top of the support frame (20). The rotating shaft (21) is connected to a bearing at the bottom of the support frame (20) and is connected to the motor (22). The baffle plate (19) is connected to the rotating shaft (21) for transmission, and covers the tops of the plurality of air inlets (17). The baffle plate (19) is provided with a plurality of circular through holes (23) in a ring array, the through holes (23) are larger than the air inlets (17), and the number of the plurality of through holes (23) is consistent with the number of air inlets (17). When the baffle plate (19) rotates, the plurality of through holes (23) can correspond to the plurality of air inlets (17), and the baffle plate can also cover the plurality of air inlets (17).

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