Switch cabinet with fire extinguishing function

Abstract

The utility model provides a switch cabinet with a fire extinguishing function, the right side of a cabinet body is provided with a storage tank, the upper part of the storage tank is connected with an air outlet pipe, one side of the air outlet pipe is connected with a pipeline group for extinguishing the fire of the cabinet body, one side of the storage tank is provided with a controller which is fixedly arranged on the cabinet body, and a signal sent by a sensor is received by the controller. A controller sends out a control signal to start an electric expansion piece and an electromagnetic valve, the electric expansion piece is started, so that a blocking plate is quickly sealed at an exhaust window, a sealed space is kept in the cabinet body, the electromagnetic valve is opened, namely, gas in a storage tank is exhausted from a pressure nozzle, and finally, the exhaust window is sealed by the blocking plate; and the cabinet body can be rapidly filled with gas in the storage tank, so that rapid and effective fire extinguishing is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, in particular to a switch cabinet with a fire extinguishing function. Background Art

[0002] The switch cabinet is a large-volume electrical equipment, which usually has many controllers and control circuits inside.

[0003] At present, the heat dissipation method of electric switch cabinets is generally natural ventilation heat dissipation, so the heat dissipation effect is poor. In the hot summer, it is easy to cause electrical components to spontaneously combust due to excessive temperature. In addition, there is no fire extinguishing device in the switch cabinet. Once spontaneous combustion occurs, the fire will continue to spread, causing a fire, and it is difficult to quickly extinguish the fire in the cabinet. Utility Model Content

[0004] The utility model provides a switch cabinet with a fire extinguishing function to solve the problem of rapid fire extinguishing proposed in the above background technology.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A switch cabinet with a fire extinguishing function, comprising a cabinet body and an exhaust window, wherein the exhaust window is symmetrically distributed on the left side of the cabinet body, a cooling fan is installed in the exhaust window, vertical sheet metal grooves are symmetrically distributed on the outside of the exhaust window and fixed on the left side of the cabinet body, and a horizontal sheet metal groove is fixed below the exhaust window and fixed on the left side of the cabinet body;

[0007] A fixing block is provided below the vertical sheet metal groove and fixed on the cabinet body, a spring is installed above the fixing block, one end of the spring inserted into the vertical sheet metal groove is connected to a blocking plate for sealing the exhaust window, and a traction member is installed on the blocking plate;

[0008] A storage tank is installed on the right side of the cabinet, an air outlet pipe is connected to the top of the storage tank, one side of the air outlet pipe is connected to a pipeline group for extinguishing the cabinet, and a controller is provided on one side of the storage tank and fixedly installed on the cabinet.

[0009] Furthermore, the traction part includes a branch plate and a threaded through hole. The branch plate is installed on the surface of the sealing plate. The threaded through hole passes through the branch plate and the sealing plate. A positioning bolt is concentrically matched on the threaded through hole. A threaded joint is fixed at the bottom of the positioning bolt and engages in the threaded through hole. A handle is inserted and fixed in the positioning bolt.

[0010] The above scheme, through the threaded joint engaged in the threaded through hole, thereby fixing the branch plate on the surface of the sealing plate, and inserting one end of the positioning bolt into the handle, when the sealing plate is lowered and sealed on the exhaust window, the sealing plate can be simply pulled by the force of the handle to re-detach from the exhaust window. The setting of the positioning bolt can fix the installation of the branch plate and the handle at the same time, and the installation is simple.

[0011] Furthermore, a traction plate is fixed above the branch plate, an electric telescopic device is provided between the two exhaust windows, an output end of the electric telescopic device is connected to a telescopic rod, and one end of the traction plate is suspended on the telescopic rod.

[0012] In the above scheme, when the electric telescopic device is started, the telescopic rod contracts inward, which will cause the traction plate to detach from the telescopic rod, and the blocking plate will quickly retract inward due to the pulling force of the spring. Using the spring as the pulling force can facilitate the faster retraction of the blocking plate, thereby allowing the blocking plate to seal on the exhaust window.

[0013] Furthermore, a wiring frame is installed inside the cabinet, and a plurality of installation intervals are arranged inside the wiring frame. The installation intervals between the wiring frames are used to install various electrical appliance terminals.

[0014] Furthermore, the pipeline group includes a rectangular flow guide pipe and a conducting pipe, the rectangular flow guide pipe is installed on the inner wall of the right side of the cabinet, a plurality of first diffusers and second diffusers are distributed inside the rectangular flow guide pipe, the first diffusers and the second diffusers are kept concentric, the conducting pipe connects the rectangular flow guide pipe, the first diffusers and the second diffusers, a plurality of pressure nozzles are equidistantly distributed on the surface of the first diffusers and the second diffusers, one side of the rectangular flow guide pipe is connected to the air outlet pipe, and an electromagnetic valve is installed on the air outlet pipe above the storage tank.

[0015] In the above scheme, the first diffusion tube and the second diffusion tube are evenly distributed inside the rectangular guide tube, and the first diffusion tube and the second diffusion tube are in a circular ring structure. When smoke or fire occurs inside the internal cabinet, the solenoid valve is opened to allow the internal fire extinguishing material of the storage tank to be introduced from the air outlet pipe into the rectangular guide tube, and then distributed and diffused in the conducting tube by the rectangular guide tube, and then distributed and diffused in the first diffusion tube and the second diffusion tube by the conducting tube, and finally discharged from the pressure nozzle, thereby achieving the function of rapid fire extinguishing. The first diffusion tube and the second diffusion tube are arranged in a distributed manner, and the gas discharge inside the storage tank can be accelerated through the pressure nozzle, thereby achieving the function of rapid extinguishing of the fire source.

[0016] Furthermore, the first diffuser tube and the second diffuser tube are equidistantly distributed in the rectangular flow guide tube, and the equidistantly distributed first diffuser tube and the second diffuser tube are kept corresponding to the installation interval.

[0017] In the above scheme, the equidistantly distributed first diffuser and the second diffuser correspond to each other in the installation area. When the gas inside the storage tank is discharged, the gas can be effectively distributed around the installation area, further accelerating the fire extinguishing function.

[0018] Furthermore, a temperature sensor and a smoke sensor are provided on one side of the rectangular guide tube and fixed inside the cabinet, the electrical signals of the temperature sensor and the smoke sensor are connected to the controller, and the electric retractor and the solenoid valve are electrically connected to the controller.

[0019] The above scheme, through the setting of temperature sensor and smoke sensor, is used for the temperature sensor to receive the temperature inside the cabinet, and sends a signal when the temperature reaches a preset value; the smoke sensor is used to receive the smoke concentration inside the cabinet, and sends a signal when the smoke reaches a preset value. Even if the preset value of the temperature sensor is not reached, the smoke reaches the preset value of the smoke sensor. It is sufficient to meet either of the two, thereby further improving the safety inside the cabinet. The signal emitted by the sensor is received by the controller, and the controller sends a control signal to start the electric retractor and the solenoid valve. The start of the electric retractor causes the sealing plate to quickly seal at the exhaust window, so that the inside of the cabinet remains in a sealed space. The solenoid valve is opened, that is, the gas inside the storage tank is discharged from the pressure nozzle, and finally the sealing plate seals the exhaust window. The gas inside the storage tank can quickly fill the inside of the cabinet, thereby achieving rapid and effective fire extinguishing. The solenoid valve and the electric retractor are opened synchronously to shorten the fire extinguishing time.

[0020] Furthermore, damping cylinders are symmetrically distributed inside the transverse sheet metal groove, a damping rod is installed inside the damping cylinder, and a buffer pad is fixed on the top of the damping rod.

[0021] In the above scheme, the rapid fall of the blocking plate will hit the buffer pad, which is made of rubber material to reduce the buffering effect. The use of the damping rod can further improve the buffering effect of the blocking plate to prevent the blocking plate from being damaged due to the impact.

[0022] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0023] 1. The signal sent by the sensor is received by the controller, and the controller sends a control signal to start the electric expansion joint and the solenoid valve. The start of the electric expansion joint makes the sealing plate quickly seal at the exhaust window, so that the inside of the cabinet is kept in a sealed space. The solenoid valve is opened, that is, the gas inside the storage tank is discharged from the pressure nozzle, and finally the sealing plate seals the exhaust window. The gas inside the storage tank can quickly fill the inside of the cabinet, so as to achieve rapid and effective fire extinguishing;

[0024] 2. The first diffuser and the second diffuser are evenly distributed and correspond to the installation area. When the gas inside the storage tank is discharged, the gas can be effectively distributed around the installation area, further accelerating the fire extinguishing function;

[0025] 3. The blocking plate will retract quickly inwards due to the pulling force of the spring. Using the spring as the pulling force can facilitate the faster retraction of the blocking plate, so that the blocking plate can be sealed on the exhaust window. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 It is a three-dimensional diagram of the utility model;

[0028] Figure 2 It is an internal diagram of the utility model;

[0029] Figure 3 It is a partial disconnection diagram of the utility model;

[0030] Figure 4 It is a three-dimensional diagram of the utility model;

[0031] Figure 5 It is an enlarged view of A of the present utility model;

[0032] Figure 6 It is a partial diagram of the utility model;

[0033] Figure 7 For the utility model Figure 6 Partial perspective view.

[0034] Among them: 1. cabinet; 11. vertical sheet metal groove; 12. horizontal sheet metal groove; 13. fixing block; 14. spring; 15. blocking plate; 16. branch plate; 17. threaded through hole; 18. positioning bolt; 181. threaded joint; 19. handle;

[0035] 161, traction plate; 162, electric telescopic device; 163, telescopic rod; 101, damping cylinder; 102, damping rod; 103, buffer pad;

[0036] 2. Wiring frame; 21. Installation area; 3. Rectangular guide tube; 31. First diffuser; 32. Second diffuser; 33. Conducting tube; 34. Pressure nozzle; 35. Exhaust pipe; 36. Solenoid valve; 37. Storage tank; 38. Controller; 381. Temperature sensor; 382. Smoke sensor; 4. Exhaust window. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] See also Figure 1-Figure 7 A switch cabinet with a fire extinguishing function comprises a cabinet body 1 and an exhaust window 4, wherein the exhaust window 4 is symmetrically distributed on the left side of the cabinet body 1, a cooling fan is installed in the exhaust window 4, and vertical sheet metal grooves 11 are symmetrically distributed on the outside of the exhaust window 4 and fixed on the left side of the cabinet body 1, and a horizontal sheet metal groove 12 is fixed under the exhaust window 4 and fixed on the left side of the cabinet body 1;

[0039] A fixing block 13 is provided below the vertical sheet metal slot 11 and fixed on the cabinet 1. A spring 14 is installed above the fixing block 13. One end of the spring 14 inserted into the vertical sheet metal slot 11 is connected to a blocking plate 15 for sealing the exhaust window 4. A traction member is installed on the blocking plate 15.

[0040] A storage tank 37 is installed on the right side of the cabinet 1. An air outlet pipe 35 is connected to the top of the storage tank 37. One side of the air outlet pipe 35 is connected to a pipeline group for extinguishing the fire in the cabinet 1. A controller 38 is fixedly installed on the cabinet 1 on one side of the storage tank 37.

[0041] Among them, the storage tank 37 is used to store fire extinguishing materials suitable for the switch cabinet, such as carbon dioxide or dry powder. The storage tank 37 is connected to the pipeline group through the outlet pipe 35. When smoke or fire is generated inside the cabinet 1, the fire extinguishing material in the storage tank 37 is used to extinguish the fire at the pipeline group.

[0042] See also Figure 4-Figure 6 The traction part includes a branch plate 16 and a threaded through hole 17. The branch plate 16 is installed on the surface of the blocking plate 15. The threaded through hole 17 passes through the branch plate 16 and the blocking plate 15. A positioning bolt 18 is concentrically matched on the threaded through hole 17. A threaded joint 181 is fixed at the bottom of the positioning bolt 18 and meshed in the threaded through hole 17. A handle 19 is inserted and fixed in the positioning bolt 18.

[0043] In the above scheme, the branch plate 16 is fixedly installed on the surface of the sealing plate 15 by engaging the threaded joint 181 in the threaded through hole 17. When one end of the positioning bolt 18 is inserted into the handle 19, when the sealing plate 15 is lowered and sealed on the exhaust window 4, the sealing plate 15 can be easily pulled by the handle 19 to detach from the exhaust window 4. The setting of the positioning bolt 18 can fix the installation of the branch plate 16 and the handle 19 at the same time, and the installation is simple.

[0044] See also Figure 4 and Figure 5 A traction plate 161 is fixed above the branch plate 16 , an electric telescopic device 162 is provided between the two exhaust windows 4 , an output end of the electric telescopic device 162 is connected to a telescopic rod 163 , and one end of the traction plate 161 is suspended on the telescopic rod 163 .

[0045] In the above scheme, when the electric telescopic device 162 is started, the telescopic rod 163 contracts inward, which will cause the traction plate 161 to separate from the telescopic rod 163, and the blocking plate 15 will quickly retract inward due to the pulling force of the spring 14. Using the spring 14 as the pulling force can facilitate the faster retraction of the blocking plate 15, so that the blocking plate 15 can be sealed on the exhaust window 4.

[0046] See also Figure 2 A wiring frame 2 is installed inside the cabinet 1, and a plurality of installation intervals 21 are arranged inside the wiring frame 2.

[0047] In the above solution, the installation space 21 between the wiring frames 2 is used to install various electrical appliance terminals.

[0048] See also Figure 2 and Figure 3 The pipeline group includes a rectangular guide pipe 3 and a conducting pipe 33. The rectangular guide pipe 3 is installed on the right inner wall of the cabinet 1. A plurality of first diffusion pipes 31 and second diffusion pipes 32 are distributed inside the rectangular guide pipe 3. The first diffusion pipe 31 and the second diffusion pipe 32 are kept concentric. The conducting pipe 33 conducts and connects the rectangular guide pipe 3, the first diffusion pipe 31 and the second diffusion pipe 32. A plurality of pressure nozzles 34 are equidistantly distributed on the surface of the first diffusion pipe 31 and the second diffusion pipe 32. One side of the rectangular guide pipe 3 is connected to the air outlet pipe 35. The air outlet pipe 35 is equipped with a solenoid valve 36 above the storage tank 37.

[0049] In the above scheme, the first diffusion tube 31 and the second diffusion tube 32 are equidistantly distributed inside the rectangular guide tube 3, and the first diffusion tube 31 and the second diffusion tube 32 are in a circular ring structure. When smoke or fire occurs inside the internal cabinet, the solenoid valve 36 is opened to allow the internal fire extinguishing material of the storage tank 37 to be introduced into the rectangular guide tube 3 from the air outlet pipe 35, and then distributed and diffused in the conducting tube 33 by the rectangular guide tube 3, and then distributed and diffused in the first diffusion tube 31 and the second diffusion tube 32 by the conducting tube 33, and finally discharged from the pressure nozzle 34, thereby achieving the function of rapid fire extinguishing. The first diffusion tube 31 and the second diffusion tube 32 are arranged in a distributed manner, and the gas discharge inside the storage tank 37 can be accelerated through the pressure nozzle 34, thereby achieving the function of rapid extinguishing of the fire source.

[0050] See also Figure 2 The first diffuser tube 31 and the second diffuser tube 32 are equidistantly distributed in the rectangular flow guide tube 3 , and the equidistantly distributed first diffuser tube 31 and the second diffuser tube 32 are kept corresponding to the installation interval 21 .

[0051] In the above scheme, the equidistantly distributed first diffuser 31 and the second diffuser 32 remain corresponding to the installation interval 21. When the gas inside the storage tank 37 is discharged, the gas can be effectively distributed around the installation interval 21, further accelerating the fire extinguishing function.

[0052] See also Figure 1 and Figure 2 A temperature sensor 381 and a smoke sensor 382 are provided on one side of the rectangular guide tube 3 and fixed inside the cabinet 1 . The electrical signals of the temperature sensor 381 and the smoke sensor 382 are connected to the controller 38 . The electric retractor 162 and the solenoid valve 36 are electrically connected to the controller 38 .

[0053] In the above scheme, through the setting of temperature sensor 381 and smoke sensor 382, ​​the temperature sensor 381 is used to receive the internal temperature of the cabinet 1, and sends a signal when the temperature reaches a preset value. The smoke sensor 382 is used to receive the smoke concentration inside the cabinet 1, and sends a signal when the smoke reaches a preset value. Even if the preset value of the temperature sensor 381 is not reached, the smoke reaches the preset value of the smoke sensor 382. It is sufficient to satisfy either of the two, thereby further improving the safety inside the cabinet 1. The signal emitted by the sensor is received by the controller 38, and a control signal is emitted by the controller 38 to start the electric retractor 162 and the solenoid valve 36. The activation of the electric retractor 162 causes the sealing plate 15 to be quickly sealed at the exhaust window 4, so that the inside of the cabinet 1 is maintained in a sealed space. The solenoid valve 36 is opened, that is, the gas inside the storage tank 37 is discharged from the pressure nozzle 34. Finally, the sealing plate 15 seals the exhaust window 4, and the gas inside the storage tank 37 can quickly fill the inside of the cabinet 1, thereby achieving rapid and effective fire extinguishing. The solenoid valve 36 and the electric retractor 162 are opened synchronously to shorten the fire extinguishing time.

[0054] See also Figure 6 and Figure 7 The damping cylinder 101 is symmetrically distributed inside the transverse sheet metal groove 12 , a damping rod 102 is installed inside the damping cylinder 101 , and a buffer pad 103 is fixed on the top of the damping rod 102 .

[0055] In the above scheme, the rapid fall of the blocking plate 15 will hit the buffer pad 103, which is made of rubber material to reduce the buffering effect. The use of the damping rod 102 further improves the buffering effect of the blocking plate 15 to prevent the blocking plate 15 from being damaged due to the impact.

[0056] Working principle:

[0057] The temperature sensor 381 is used to receive the temperature inside the cabinet 1, and sends a signal when the temperature reaches a preset value. The smoke sensor 382 is used to receive the smoke concentration inside the cabinet 1, and sends a signal when the smoke reaches a preset value. Even if the preset value of the temperature sensor 381 is not reached, the smoke reaches the preset value of the smoke sensor 382. It is sufficient to satisfy either of the two, so as to further improve the safety inside the cabinet 1. The signal sent by the sensor is received by the controller 38, and the controller 38 sends a control signal to start the electric telescopic device 162 and the solenoid valve 36. When the electric telescopic device 162 is started, the telescopic rod 163 contracts inward, which will cause the traction plate 161 to separate from the telescopic rod 163, and the blocking plate 15 will be pulled back quickly inward by the tension of the spring 14, so that the blocking plate 15 is quickly sealed at the exhaust window 4, so that the inside of the cabinet 1 is maintained in a sealed space, and the solenoid valve 36 is opened, that is, the gas inside the storage tank 37 is discharged from the pressure nozzle 34, and finally the blocking plate 15 seals the exhaust window 4, and the gas inside the storage tank 37 can quickly fill the inside of the cabinet 1, so as to achieve rapid and effective fire extinguishing;

[0058] After the fire is extinguished, the blocking plate 15 is simply pulled by the handle 19 to detach from the exhaust window 4, and the traction plate 161 is re-suspended on the telescopic rod 163, and the gas or smoke inside the cabinet 1 is quickly discharged through the cooling fan in the exhaust window 4.

[0059] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A switch cabinet with a fire extinguishing function, comprising a cabinet body (1) and an exhaust window (4), wherein the exhaust window (4) is symmetrically distributed on the left side of the cabinet body (1), and a cooling fan is installed in the exhaust window (4), characterized in that: The exhaust window (4) is symmetrically provided with vertical sheet metal grooves (11) fixed to the left side of the cabinet (1), and the exhaust window (4) is provided with a horizontal sheet metal groove (12) fixed to the left side of the cabinet (1); A fixing block (13) is provided below the vertical sheet metal groove (11) and is fixed on the cabinet (1); a spring (14) is installed above the fixing block (13); one end of the spring (14) is inserted into the vertical sheet metal groove (11) and is connected to a blocking plate (15) for sealing the exhaust window (4); a traction member is installed on the blocking plate (15); A storage tank (37) is installed on the right side of the cabinet (1), an air outlet pipe (35) is connected to the top of the storage tank (37), one side of the air outlet pipe (35) is connected to a pipeline group for extinguishing the cabinet (1), and a controller (38) is provided on one side of the storage tank (37) and is fixedly installed on the cabinet (1).

2. The switch cabinet with fire extinguishing function according to claim 1, characterized in that: The traction member comprises a branch plate (16) and a threaded through hole (17); the branch plate (16) is mounted on the surface of the blocking plate (15); the threaded through hole (17) penetrates the branch plate (16) and the blocking plate (15); a positioning bolt (18) is coaxially matched on the threaded through hole (17); a threaded joint (181) is fixed at the bottom of the positioning bolt (18) and meshed in the threaded through hole (17); a handle (19) is inserted and fixed in the positioning bolt (18).

3. The switch cabinet with fire extinguishing function according to claim 2, characterized in that: A traction plate (161) is fixed above the branch plate (16), an electric telescopic device (162) is provided between the two exhaust windows (4), an output end of the electric telescopic device (162) is connected to a telescopic rod (163), and one end of the traction plate (161) is suspended on the telescopic rod (163).

4. The switch cabinet with fire extinguishing function according to claim 3 is characterized in that: A wiring frame (2) is installed inside the cabinet (1), and a plurality of installation spaces (21) are arranged inside the wiring frame (2).

5. The switch cabinet with fire extinguishing function according to claim 4, characterized in that: The pipeline group comprises a rectangular flow guide pipe (3) and a conducting pipe (33), wherein the rectangular flow guide pipe (3) is installed on the right inner wall of the cabinet (1), and a plurality of first diffusion pipes (31) and second diffusion pipes (32) are distributed inside the rectangular flow guide pipe (3), wherein the first diffusion pipe (31) and the second diffusion pipe (32) are kept concentric, and the conducting pipe (33) conducts and connects the rectangular flow guide pipe (3), the first diffusion pipe (31) and the second diffusion pipe (32), and a plurality of pressure nozzles (34) are distributed equidistantly on the surfaces of the first diffusion pipe (31) and the second diffusion pipe (32), and one side of the rectangular flow guide pipe (3) is connected to an air outlet pipe (35), and an electromagnetic valve (36) is installed on the air outlet pipe (35) above a storage tank (37).

6. The switch cabinet with fire extinguishing function according to claim 5, characterized in that: The first diffuser tube (31) and the second diffuser tube (32) are equidistantly distributed in the rectangular flow guide tube (3), and the equidistantly distributed first diffuser tube (31) and the second diffuser tube (32) are kept corresponding to the installation interval (21).

7. The switch cabinet with fire extinguishing function according to claim 6, characterized in that: A temperature sensor (381) and a smoke sensor (382) are provided on one side of the rectangular flow guide tube (3) and are fixed inside the cabinet (1); electrical signals of the temperature sensor (381) and the smoke sensor (382) are connected to the controller (38); and the electric expansion joint (162) and the solenoid valve (36) are electrically connected to the controller (38).

8. The switch cabinet with fire extinguishing function according to claim 1, characterized in that: The interior of the transverse sheet metal groove (12) is symmetrically distributed with a damping cylinder (101), the interior of the damping cylinder (101) is equipped with a damping rod (102), and the top of the damping rod (102) is fixed with a buffer pad (103).

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