An explosion-proof power distribution device

Abstract

The present invention belongs to the technical field of distribution boxes, and specifically is an explosion-proof distribution device; it comprises a box body, a base is fixedly connected to the bottom end of the box body, a mounting frame is fixedly connected to the inner cavity of the box body, air cooling pipes are arranged on both sides of the mounting frame, the air cooling pipes are fixedly connected to the inner wall of the box body, and the air cooling pipes extend from the bottom of the inner cavity of the box body to the top of the inner cavity of the box body, the air cooling pipes are serpentine, and air intake hoppers are fixedly connected to the outer walls of both sides of the base, and an air intake pump is fixedly installed on the inner wall of the air intake hopper; the present invention cooperates with the air intake pump, the air cooling pipe, the heat dissipation fin, the regulating pipe and the air outlet pipe, so that the box body can quickly discharge the heat generated when the electrical components are working without contacting the outside air, thereby effectively ensuring the normal operating temperature of the box body.

Description

Technical Field

[0001] The invention belongs to the technical field of distribution boxes, in particular to an explosion-proof distribution device. Background Art

[0002] Explosion-proof power distribution device refers to a power distribution device that takes specific technical measures in structure and performance to ensure that it will not cause ignition or explosion in an explosive gas environment. This device is mainly used to prevent electric sparks or other ignition sources generated by electrical equipment from contacting the surrounding explosive gas mixture, thereby avoiding explosion accidents. Explosion-proof power distribution devices are widely used in industrial environments such as petroleum, chemical, coal mines, and oil fields where flammable and explosive gases or dust exist. In these environments, explosion-proof power distribution devices can ensure the safe operation of electrical equipment and avoid explosion accidents caused by electric sparks or other ignition sources, thereby ensuring production safety and personnel safety.

[0003] In the prior art, because the electrical components in the distribution box generate heat when working, if the heat accumulates, the temperature in the box will be higher than the operating temperature, which will affect the normal use of the distribution box. Therefore, most distribution boxes have ventilation and heat dissipation holes on the box body, and the inner cavity of the box is connected with the outside air to achieve the effect of ventilation and heat dissipation. However, although this structure can cool the box body, it will also cause the electrical components in the box body to come into contact with the humid air from the outside, especially in rainy and snowy weather, which has a serious impact on the service life of the electrical components. In addition, since most of the fire extinguishing devices equipped in the distribution box have a single spray direction, they cannot quickly cover the entire inner cavity of the box when the electrical components encounter fire, and cannot achieve an ideal fire extinguishing effect.

[0004] To this end, the present invention provides an explosion-proof power distribution device. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art and solve the problem in the prior art that, because the electrical components in the distribution box generate heat when working, if the heat accumulates, the temperature in the box will be higher than the operating temperature, which will affect the normal use of the distribution box. Therefore, most distribution boxes have ventilation and heat dissipation holes on the box body, and the inner cavity of the box is connected with the outside air to achieve the effect of ventilation and heat dissipation. However, although this structure can cool the box body, it will also cause the electrical components in the box body to contact with the humid air from the outside, especially in rainy and snowy weather, which has a serious impact on the service life of the electrical components. In addition, since most of the fire extinguishing devices equipped in the distribution box have a single spray direction, they cannot quickly cover the entire inner cavity of the box when the electrical components encounter fire, and cannot achieve the ideal fire extinguishing effect. The present invention proposes an explosion-proof distribution device.

[0006] The technical solution adopted by the present invention to solve its technical problem is: an explosion-proof power distribution device described in the present invention includes a box body, the bottom end of the box body is fixedly connected to a base, the inner cavity of the box body is fixedly connected to a mounting frame, both sides of the mounting frame are provided with air cooling pipes, the air cooling pipes are fixedly connected to the inner wall of the box body, and the air cooling pipes extend from the bottom of the inner cavity of the box body to the top of the inner cavity of the box body, the air cooling pipes are serpentine, the outer walls on both sides of the base are fixedly connected to air intake hoppers, the inner wall of the air intake hopper is fixedly installed with an air intake pump, the top of the air intake hopper is fixedly connected to an air intake pipe, and the end of the air intake pipe away from the air intake hopper extends to the inner cavity of the box body and connects to the bottom of the air cooling pipe. The ends are fixedly connected, and regulating tubes are symmetrically arranged on the top of the inner cavity of the box body, and the regulating tubes are serpentine, and one end of the regulating tube is fixedly connected to the top of the air-cooling tube, and the ends of the two regulating tubes away from the air-cooling tube are fixedly connected to the outlet pipe, and the outlet pipe is in an inverted L shape, and the bottom end of the outlet pipe extends to the bottom of the box body, and the outer side of the straight tube wall of the air-cooling tube is fixedly connected with a heat dissipation fin 1, and the heat dissipation fin 1 is annular, and a gas detector is fixedly installed on the inner wall of the air inlet pipe, an explosion-proof fire extinguishing tank and a smoke sensor are fixedly connected to the top of the inner cavity of the box body, and a fire extinguishing assembly is arranged on the bottom of the regulating tube, and the explosion-proof fire extinguishing tank is adapted to the fire extinguishing assembly.

[0007] Preferably, the fire extinguishing assembly includes an electric push rod, a hanger and an injection pipe, the electric push rod is fixedly connected to the top of the inner cavity of the box body, the output end of the electric push rod is fixedly connected to the hanger, the hanger is evenly fixed with support rods, the support rods correspond one-to-one to the straight tube of the adjusting tube, the bottom of the straight tube of the adjusting tube is evenly fixed with the injection pipe, a rotating shaft is rotatably connected to the tube wall of the injection pipe, one end of the rotating shaft extends into the inner cavity of the injection pipe and is fixedly connected to a sealing plate, the sealing plate is fitted with the inner wall of the injection pipe, the other end of the rotating shaft extends to the outside of the injection pipe and is fixedly connected to a gear, the support rods are evenly fixedly connected to the rack plates, the rack plates are meshed with the gears one-to-one, the explosion-proof fire extinguishing tank is connected to the air outlet pipe, a control valve is installed at the L-shaped bend of the air outlet pipe, and a control valve is installed at one end of the adjusting pipe close to the air cooling pipe.

[0008] Preferably, the mounting frame is a metal component, and two air-cooling chambers are arranged in the mounting frame. The air-cooling chamber is serpentine, and a connecting tube 1 is fixedly connected to the bottom end of the air-cooling chamber, and an end of the connecting tube 1 away from the air-cooling chamber is fixedly connected to the bottom end of the air-cooling tube, and a connecting tube 2 is fixedly connected to the top end of the air-cooling chamber, and an end of the connecting tube 2 away from the air-cooling chamber is fixedly connected to the top end of the air-cooling tube.

[0009] Preferably, heat dissipation fins 2 are fixedly connected to both side outer walls of the box body, the heat dissipation fins 2 are plug-in type, a water cooling box is fixedly connected to the heat dissipation fins 2, and the fins of the heat dissipation fins 2 extend into the inner cavity of the water cooling box.

[0010] Preferably, a U-shaped frame is fixedly connected to the base, one end of the U-shaped frame extends to the top of the box body away from the base, and the top of the U-shaped frame is fixedly connected to the water tank, and a water pump 1 and a water outlet pipe are fixedly connected to the outer wall of the water tank, one end of the water pump 1 is connected to the bottom of the water tank side wall, and the other end of the water pump 1 is connected to the middle of the water outlet pipe, and the water outlet pipe is in an inverted U shape, and connecting pipes 3 are fixedly connected to the side walls at both ends of the water outlet pipe, and the bottom end of the connecting pipe 3 is fixedly connected to a water-cooling pipe, the water-cooling pipe is connected to the water-cooling box, and a return pipe is provided on the side of the water-cooling box away from the water-cooling pipe, and a water inlet pipe 1 is symmetrically fixedly connected to the top of the water tank, and a water pump 2 is fixedly installed on both sides of the water tank, one end of the water pump 2 is connected to the water inlet pipe 1, and the other end of the water pump 2 is connected to the return pipe, and a water outlet is provided at the bottom of the side of the water-cooling box away from the water-cooling pipe, and the water outlet of the water-cooling box is connected to the return pipe.

[0011] Preferably, the fins on the second heat sink fin are inclined toward one side of the return pipe, and drainage ends are evenly provided on the water cooling pipe. The drainage ends on the water cooling pipe extend into the water cooling box and correspond one-to-one with the fins on the second heat sink fin.

[0012] Preferably, branch pipe 1 is fixedly connected to the bottom ends of both sides of the water outlet pipe, branch pipe 2 is provided below the water cooling box, one end of branch pipe 1 away from the water outlet pipe is fixedly connected to branch pipe 2, one end of branch pipe 2 away from branch pipe 1 is fixedly connected to the bottom end of the return pipe, a part of the air inlet pipe is located in branch pipe 2, and a heat dissipation component is provided on the water tank.

[0013] Preferably, the heat dissipation component includes a fan, a water storage bucket and a water level sensor. The fan is evenly fixed to the top of the water tank, a water storage pipe is fixed to the top of the inner wall of the water tank, one end of the water inlet pipe away from the water pump extends into the water tank and is connected with the water storage pipe, a water storage bucket is evenly fixed to the bottom of the inner cavity of the water tank, the water storage bucket corresponds to the fan one by one, an annular pipe is provided on the outer side of the bottom of the water storage bucket, the water storage pipe and the annular pipe are connected through a connecting pipe four, nozzles are evenly fixed to the inner wall of the annular pipe, one end of the nozzle away from the annular pipe extends to the bottom of the inner cavity of the water storage bucket, a water level sensor is installed in the water tank, and a water inlet pipe 2 is fixed to the bottom of the side wall of the water tank.

[0014] Preferably, the portion of the air inlet pipe located inside the second branch pipe is spiral-shaped.

[0015] Preferably, a spiral groove is provided on the inner wall of the water storage bucket.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The explosion-proof power distribution device described in the present invention can quickly discharge the heat generated by the electrical components when the box is working without contacting the outside air through the cooperation between the air intake pump, the air cooling pipe, the heat dissipation fins, the regulating pipe and the air outlet pipe, thereby effectively ensuring the normal operating temperature of the box. The regulating pipe, the fire extinguishing assembly, the smoke sensor and the explosion-proof fire extinguishing tank can quickly switch the state when the box encounters fire, so that the regulating pipe is converted from the heat dissipation state to the fire extinguishing state, and the fire extinguishing agent is evenly sprayed in the box to control the fire in the box.

[0018] 2. The explosion-proof power distribution device described in the present invention can conduct heat on the side walls of the box body through the heat dissipation fins 2 provided on the outer walls on both sides of the box body, and the water in the water-cooled box directly contacts the fins of the heat dissipation fins 2, so that the heat in the box body is effectively conducted directly to the water in the water-cooled box, thereby achieving a better heat dissipation effect, and the water in the water tank can be pumped out and transferred to the water-cooled box through the water pump 1 in conjunction with the water outlet pipe, the connecting pipe 1 and the water-cooling pipe, and the water in the water-cooled box can be sent back to the water tank through the water pump 2 in conjunction with the reflux pipe and the water inlet pipe 1, thereby realizing a water-cooled circulation, thereby making the water in the water-cooled box flow, further strengthening the water cooling of the heat dissipation fins 2, and improving the heat dissipation efficiency of the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a stereogram of the present invention as a whole;

[0021] Figure 2 It is a schematic diagram of the box body of the present invention;

[0022] Figure 3 It is an exploded view of the air intake pipe of the present invention;

[0023] Figure 4 is a cross-sectional view of the mounting frame of the present invention;

[0024] Figure 5 It is a partial schematic diagram of the air outlet pipe of the present invention;

[0025] Figure 6 yes Figure 5 A partial enlarged view of the middle part;

[0026] Figure 7 is a cross-sectional view of the injection pipe of the present invention;

[0027] Figure 8 is a cross-sectional view of the water cooling box of the present invention;

[0028] Fig. 9 yes Figure 8 A partial enlarged view of point B in the middle;

[0029] Fig.10 is a cross-sectional view of the water tank of the present invention;

[0030] Fig.11 It is a cross-sectional view of the water storage bucket of the present invention;

[0031] Fig.12 It is an exploded view of the water cooling pipe of the present invention;

[0032] In the figure: 1. Box; 2. Base; 3. Mounting frame; 4. Air intake hopper; 5. Air intake pump; 6. Air intake pipe; 7. Air cooling pipe; 8. Gas detector; 9. Heat dissipation fin 1; 10. Adjustment pipe; 11. Air outlet pipe; 12. Smoke sensor; 13. Explosion-proof fire extinguisher; 14. Electric push rod; 15. Hanger; 16. Support rod; 17. Rack plate; 18. Injection pipe; 19. Sealing plate; 20. Rotating shaft; 21. Gear; 22. Air cooling chamber; 23. Connection Pipe 1; 24, connecting pipe 2; 25, cooling fin 2; 26, water cooling box; 27, U-shaped frame; 28, water tank; 29, fan; 30, water pump 1; 31, water outlet pipe; 32, branch pipe 1; 33, branch pipe 2; 34, return pipe; 35, connecting pipe 3; 36, water cooling pipe; 37, water pump 2; 38, water inlet pipe 1; 39, water storage pipe; 40, connecting pipe 4; 41, annular pipe; 42, water storage bucket; 43, water level sensor; 44, water inlet pipe 2. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] like Figure 1-Figure 12As shown, an explosion-proof power distribution device according to an embodiment of the present invention comprises a box body 1, a base 2 is fixedly connected to the bottom end of the box body 1, a mounting frame 3 is fixedly connected to the inner cavity of the box body 1, air cooling pipes 7 are arranged on both sides of the mounting frame 3, the air cooling pipes 7 are fixedly connected to the inner wall of the box body 1, and the air cooling pipes 7 extend from the bottom of the inner cavity of the box body 1 to the top of the inner cavity of the box body 1, and the air cooling pipes 7 are serpentine, and air intake hoppers 4 are fixedly connected to the outer walls of both sides of the base 2, an air intake pump 5 is fixedly installed on the inner wall of the air intake hopper 4, an air intake pipe 6 is fixedly connected to the top of the air intake hopper 4, and one end of the air intake pipe 6 away from the air intake hopper 4 extends to the inner cavity of the box body 1 and is fixedly connected to the bottom end of the air cooling pipe 7, and the inner cavity of the box body 1 is fixedly connected to the bottom end of the air cooling pipe 7. A regulating tube 10 is symmetrically arranged on the top of the cavity. The regulating tube 10 is serpentine. One end of the regulating tube 10 is fixedly connected to the top of the air-cooling tube 7. The ends of the two regulating tubes 10 away from the air-cooling tube 7 are fixedly connected to the outlet pipe 11. The outlet pipe 11 is in an inverted L shape. The bottom end of the outlet pipe 11 extends to the bottom of the box body 1. The outer side of the straight tube wall of the air-cooling tube 7 is fixedly connected with a heat dissipation fin 9. The heat dissipation fin 9 is annular. A gas detector 8 is fixedly installed on the inner wall of the air inlet pipe 6. An explosion-proof fire extinguishing tank 13 and a smoke sensor 12 are fixedly connected to the top of the inner cavity of the box body 1. A fire extinguishing assembly is arranged at the bottom of the regulating tube 10. The explosion-proof fire extinguishing tank 13 is adapted to the fire extinguishing assembly.During operation, air is drawn through the air intake pump 5, so that the external gas can enter the air cooling tube 7 through the air intake hopper 4 and the air intake pipe 6. The heat in the box body 1 can be transferred to the air cooling tube 7 through the annular heat dissipation fin 9 provided on the outside of the air cooling tube 7, and then brought out by the air outlet pipe 11 after passing through the regulating tube 10. Through the coordination among the air intake pump 5, the air cooling tube 7, the heat dissipation fin 9, the regulating tube 10 and the air outlet pipe 11, the box body 1 can quickly discharge the heat generated by the electrical components when working without contacting the external air, which effectively ensures the box body 1 is in good working condition. The normal operating temperature of the box 1 is set. When a fire occurs in the electrical components in the box 1, the smoke sensor 12 senses it, and the explosion-proof fire extinguisher 13 opens and cooperates with the fire extinguishing assembly on the regulating tube 10 to extinguish the open fire in the box 1. When extinguishing the fire, the regulating tube 10 is not ventilated. The regulating tube 10, the fire extinguishing assembly, the smoke sensor 12 and the explosion-proof fire extinguisher 13 can quickly switch states when the box 1 encounters a fire, so that the regulating tube 10 is converted from a heat dissipation state to a fire extinguishing state, and the fire extinguishing agent is evenly sprayed in the box 1 to control the fire in the box 1. The system effectively solves the problem in the prior art that the electrical components in the distribution box will generate heat when working. If the heat accumulates, the temperature in the box body 1 will be higher than the operating temperature, which will affect the normal use of the distribution box. Therefore, most distribution boxes have ventilation and heat dissipation holes on the box body 1, and the inner cavity of the box body 1 is connected to the outside air to achieve the effect of ventilation and heat dissipation. However, although this structure can cool the box body 1, it will also cause the electrical components in the box body 1 to contact with the moist air outside, especially in rainy and snowy weather, which has a serious impact on the service life of the electrical components. In addition, since most of the fire extinguishing devices equipped in the distribution box have a single spray direction, they cannot quickly cover the entire inner cavity of the box body 1 when the electrical components encounter fire, and cannot achieve the ideal fire extinguishing effect. The gas detector 8 can detect the gas entering the air cooling pipe 7. When the gas entering contains dangerous gas, the air intake pump 5 is closed to prevent the dangerous gas from entering the air cooling pipe 7 and escaping from the air cooling pipe 7 when flowing in the box body 1, thereby damaging the electrical components in the box body 1. ;

[0035] The fire extinguishing assembly includes an electric push rod 14, a hanger 15 and an injection pipe 18. The electric push rod 14 is fixed to the top of the inner cavity of the box body 1, and the output end of the electric push rod 14 is fixed to the hanger 15. The hanger 15 is evenly fixed with a support rod 16, and the support rod 16 corresponds to the straight tube of the regulating tube 10 one by one. The bottom of the straight tube of the regulating tube 10 is evenly fixed with the injection pipe 18. The tube wall of the injection pipe 18 is rotatably connected with a rotating shaft 20. One end of the rotating shaft 20 extends into the inner cavity of the injection pipe 18 and is fixed with a sealing plate 19. The sealing plate 19 is in contact with the inner wall of the injection pipe 18. The other end of the rotating shaft 20 extends to the outside of the injection pipe 18 and is fixed with a gear 21. The support rod 16 is evenly fixed with a rack plate 17, and the rack plate 17 is meshed with the gear 21 one by one. The explosion-proof fire extinguishing tank 13 and the outlet pipe 11 The control valve is installed at the L-shaped bend of the air outlet pipe 11, and the control valve is installed at one end of the regulating pipe 10 close to the air cooling pipe 7; during operation, when the smoke sensor 12 senses that the box 1 is in a fire, the control valve in the regulating pipe 10 and the control valve in the air outlet pipe 11 are closed, and the explosion-proof fire extinguishing tank 13 is opened to transport the fire extinguishing agent to the regulating pipes 10 on both sides through the air outlet pipe 11. At the same time, the electric push rod 14 drives the support rod 16 on the hanger 15 to move, so that the rack plate 17 drives the gear 21 to rotate, and then the rotating shaft 20 drives the sealing plate 19 to open, and the fire extinguishing agent is sprayed out from the injection pipe 18. Through the injection pipe 18 evenly arranged on the serpentine straight pipe of the regulating pipe 10, the fire extinguishing agent can be evenly covered in the entire inner cavity of the box 1, so as to achieve the ideal effect of rapid fire extinguishing.

[0036] The mounting frame 3 is a metal component, and two air cooling chambers 22 are arranged in the mounting frame 3. The air cooling chamber 22 is serpentine, and a connecting pipe 1 23 is fixedly connected to the bottom end of the air cooling chamber 22, and one end of the connecting pipe 1 23 away from the air cooling chamber 22 is fixedly connected to the bottom end of the air cooling pipe 7, and a connecting pipe 24 is fixedly connected to the top end of the air cooling chamber 22, and one end of the connecting pipe 24 away from the air cooling chamber 22 is fixedly connected to the top end of the air cooling pipe 7; during operation, when the box body 1 does not encounter a fire and is ventilated and heat-dissipated normally, a part of the gas enters the connecting pipe 1 23 from the air cooling pipe 7, passes through the air cooling chamber 22 in the mounting frame 3, and returns to the air cooling pipe 7 from the connecting pipe 2 24 again. Since the electrical components are fixed on the mounting frame 3 and the mounting frame 3 is a metal component, a part of the working heat generated by the electrical components is transferred to the mounting frame 3. Through the design of the air cooling chamber 22, the cold air can quickly take away the heat on the mounting frame 3 when passing through the air cooling chamber 22, thereby further achieving the effect of rapid cooling and heat dissipation.

[0037] The outer walls on both sides of the box body 1 are fixedly connected with heat dissipation fins 25, which are plug-in type, and the heat dissipation fins 25 are fixedly connected with a water cooling box 26, and the fins of the heat dissipation fins 25 extend into the inner cavity of the water cooling box 26; when working, the heat on the side wall of the box body 1 can be discharged through the heat dissipation fins 25 provided on the outer walls on both sides of the box body 1, and the water in the water cooling box 26 directly contacts the fins of the heat dissipation fins 25, so that the heat in the box body 1 is directly conducted to the water in the water cooling box 26, thereby achieving a better heat dissipation effect.

[0038] A U-shaped frame 27 is fixedly connected to the base 2, and one end of the U-shaped frame 27 away from the base 2 extends to the top of the box body 1. A water tank 28 is fixedly connected to the top of the U-shaped frame 27. A water pump 30 and a water outlet pipe 31 are fixedly connected to the outer wall of the water tank 28. One end of the water pump 30 is connected to the bottom of the side wall of the water tank 28, and the other end of the water pump 30 is connected to the middle of the water outlet pipe 31. The water outlet pipe 31 is in an inverted U shape. Connecting pipes 35 are fixedly connected to the side walls of both ends of the water outlet pipe 31. The bottom end of the connecting pipe 35 is fixedly connected to a water cooling pipe 36. The water cooling pipe 36 is connected to the water cooling box 26. A reflux pipe 34 is provided on the side of the water cooling box 26 away from the water cooling pipe 36. A water inlet pipe 38 is symmetrically fixedly connected to the top of the water tank 28. Both sides of the water tank 28 are fixedly installed There is a water pump 2 37, one end of the water pump 2 37 is connected to the water inlet pipe 1 38, and the other end of the water pump 2 37 is connected to the return pipe 34. A water outlet is provided at the bottom of the water cooling box 26 away from the water cooling pipe 36, and the water outlet of the water cooling box 26 is connected to the return pipe 34; when working, the water in the water tank 28 can be pumped out and transferred to the water cooling box 26 through the water pump 1 30 in conjunction with the water outlet pipe 31, the connecting pipe 35 and the water cooling pipe 36, and the water in the water cooling box 26 can be sent back to the water tank 28 through the water pump 2 37 in conjunction with the return pipe 34 and the water inlet pipe 1 38, thereby realizing a water cooling cycle, and thus making the water in the water cooling box 26 flow, further strengthening the water cooling of the heat dissipation fins 25, and improving the heat dissipation efficiency of the box body 1.

[0039] The fins on the second heat sink fin 25 are all inclined toward the side of the return pipe 34, and drainage ends are evenly arranged on the water cooling tube 36. The drainage ends on the water cooling tube 36 extend into the water cooling box 26 and correspond one-to-one with the fins on the second heat sink fin 25. When working, by designing the fins on the second heat sink fin 25 to be inclined, the water flowing out of the drainage end on the water cooling tube 36 can flow along the inclined surface of the fin, taking away the heat on the fin, thereby achieving the heat dissipation effect.

[0040] The bottom ends of both sides of the water outlet pipe 31 are fixedly connected with branch pipe 1 32, and a branch pipe 2 33 is arranged below the water cooling box 26. One end of the branch pipe 1 32 away from the water outlet pipe 31 is fixedly connected to the branch pipe 2 33, and one end of the branch pipe 2 33 away from the branch pipe 1 32 is fixedly connected to the bottom end of the return pipe 34. A part of the air intake pipe 6 is located in the branch pipe 2 33, and a heat dissipation component is arranged on the water tank 28. During operation, the heat dissipation component can cool the water returning to the water tank 28 so that the water temperature is lower than the air temperature. Through the design of the branch pipe 1 32 and the branch pipe 2 33, a water cooling branch is opened up in the original water cooling cycle, and a part of the air intake pipe 6 is located in the branch pipe 2 33, and the water temperature in the branch pipe 2 33 is lower than the air temperature, so that the external air sucked by the air intake pump 5 can be cooled by the cold water in the branch pipe 2 33 when passing through the part of the air intake pipe 6 located in the branch pipe 2 33, thereby further reducing the temperature of the gas entering the air cooling pipe 7, thereby achieving a better heat dissipation effect.

[0041] The heat dissipation component includes a fan 29, a water storage bucket 42 and a water level sensor 43. The fan 29 is evenly fixed on the top of the water tank 28, and a water storage pipe 39 is fixed on the top of the inner wall of the water tank 28. The end of the water inlet pipe 38 away from the water pump 37 extends into the water tank 28 and is connected to the water storage pipe 39. The bottom of the inner cavity of the water tank 28 is evenly fixed with a water storage bucket 42, and the water storage bucket 42 corresponds to the fan 29 one by one. An annular pipe 41 is provided on the outer side of the bottom of the water storage bucket 42, and the water storage pipe 39 and the annular pipe 41 are connected through a connecting pipe 40. Nozzles are evenly fixed on the inner wall of the annular pipe 41, and the end of the nozzle away from the annular pipe 41 extends to the bottom of the inner cavity of the water storage bucket 42. A water level sensor 43 is installed in the water tank 28, and the bottom of the side wall of the water tank 28 is fixed with a water inlet pipe When working, the refluxed water can be transported from the water inlet pipe 38 to the water storage pipe 39 through the water pump 2 37, and then input into the water storage bucket 42 through the connecting pipe 40 and the annular pipe 41, and finally overflow from the water storage bucket 42 and fall into the inner cavity of the water tank 28. The refluxed water can be diverted by the water storage pipe 39 in coordination with the connecting pipe 40, the annular pipe 41 and the water storage bucket 42, and the water in the water storage bucket 42 and the water tank 28 can be cooled by the fan 29, so that the refluxed water and the water in the water tank 28 can be cooled quickly. The water level in the water tank 28 is sensed in real time by the water level sensor 43. When the water level is lower than the set value due to evaporation, water is supplied to the water tank 28 through the water inlet pipe 2 44 through the external water supply equipment to maintain the water level in the water tank 28.

[0042] The portion of the air intake pipe 6 located in the second branch pipe 33 is spiral-shaped; during operation, by designing the portion of the air intake pipe 6 located in the second branch pipe 33 to be spiral-shaped, the length of the air intake pipe 6 in the second branch pipe 33 is increased, so that the time for the gas to flow in the air intake pipe 6 in the second branch pipe 33 is increased, thereby facilitating the cooling of the gas by cold water.

[0043] A spiral groove is provided on the inner wall of the water storage bucket 42; when working, the spiral groove provided on the inner wall of the water storage bucket 42 cooperates with the nozzle provided on the annular pipe 41, so that the backflowing water will stir the water in the water storage bucket 42 when entering the water storage bucket 42, and cooperate with the fan 29 to cool the water in the water storage bucket 42.

[0044] Working principle: air is drawn by the air intake pump 5, so that the external gas can enter the air cooling pipe 7 through the air intake hopper 4 and the air intake pipe 6. The heat in the box body 1 can be transferred to the air cooling pipe 7 through the annular heat dissipation fin 9 provided on the outside of the air cooling pipe 7, and then brought out by the air outlet pipe 11 after passing through the regulating pipe 10. Through the coordination between the air intake pump 5, the air cooling pipe 7, the heat dissipation fin 9, the regulating pipe 10 and the air outlet pipe 11, the box body 1 can quickly discharge the heat generated when the electrical components are working without contacting the external air, effectively ensuring the normal operating temperature of the box body 1. When a fire occurs in the electrical components in the box body 1, after the smoke sensor 12 senses it, the explosion-proof fire extinguisher 13 opens and cooperates with the fire extinguishing component on the regulating pipe 10 to extinguish the fire in the box body 1. The open flame is extinguished. When extinguishing the fire, the regulating tube 10 is not ventilated. Through the regulating tube 10, the fire extinguishing assembly, the smoke sensor 12 and the explosion-proof fire extinguishing tank 13, the state can be quickly switched when the box 1 encounters a fire, so that the regulating tube 10 is converted from the heat dissipation state to the fire extinguishing state, and the fire extinguishing agent is evenly sprayed in the box 1 to control the fire in the box 1. This effectively solves the problem in the prior art that the electrical components in the distribution box will generate heat when working. If the heat accumulates, the temperature in the box 1 will be higher than the operating temperature, which will affect the normal use of the distribution box. Therefore, most distribution boxes have ventilation and heat dissipation holes on the box 1, and the inner cavity of the box 1 is connected to the outside air to achieve the effect of ventilation and heat dissipation. However, although this structure will cause the box 1 to It plays a role in cooling down, and also causes the electrical components in the box 1 to contact with the moist air from the outside, especially in rainy and snowy weather, which has a serious impact on the service life of the electrical components. In addition, since most of the fire extinguishing devices equipped in the distribution box have a single spray direction, they cannot quickly cover the entire inner cavity of the box 1 when the electrical components are on fire, and cannot achieve the ideal fire extinguishing effect. When the smoke sensor 12 senses that the box 1 is on fire, the control valve in the regulating pipe 10 and the control valve in the outlet pipe 11 are closed, and the explosion-proof fire extinguishing tank 13 is opened to transport the fire extinguishing agent to the regulating pipes 10 on both sides through the outlet pipe 11. At the same time, the electric push rod 14 drives the support rod 16 on the hanger 15 to move, so that the rack plate 17 drives the gear 21 to rotate, thereby making the shaft 20 drives the sealing plate 19 to open, and the fire extinguishing agent is sprayed out from the injection pipe 18. Through the injection pipe 18 evenly arranged on the straight pipe of the serpentine regulating pipe 10, the fire extinguishing agent can be evenly covered in the entire inner cavity of the box body 1, so as to achieve the ideal effect of rapid fire extinguishing. When the box body 1 does not encounter a fire and is ventilated and heat-dissipated normally, a part of the gas enters the connecting pipe 1 23 from the air-cooling pipe 7, and then returns to the air-cooling pipe 7 from the connecting pipe 2 24 through the air-cooling cavity 22 in the mounting frame 3. Since the electrical components are fixed on the mounting frame 3, and the mounting frame 3 is a metal component, a part of the working heat generated by the electrical components is transferred to the mounting frame 3. Through the design of the air-cooling cavity 22, the cold air can quickly take away the heat on the mounting frame 3 when passing through the air-cooling cavity 22.The effect of rapid cooling and heat dissipation is further achieved. The heat on the side walls of the box body 1 can be conducted out through the heat dissipation fins 25 provided on the outer walls of both sides of the box body 1. The water in the water cooling box 26 directly contacts the fins of the heat dissipation fins 25, and effectively conducts the heat in the box body 1 directly to the water in the water cooling box 26, thereby achieving a better heat dissipation effect. The water in the water tank 28 can be pumped out and transferred to the water cooling box 26 through the water pump 1 30 in conjunction with the water outlet pipe 31, the connecting pipe 35 and the water cooling pipe 36, and the water in the water cooling box 26 can be sent back to the water tank 28 through the water pump 2 37 in conjunction with the return pipe 34 and the water inlet pipe 1 38, thereby realizing a water cooling cycle, thereby making the water in the water cooling box 26 flow, thereby further enhancing The water cooling of the heat dissipation fin 25 is strengthened, and the heat dissipation efficiency of the box body 1 is improved. By designing the fins on the heat dissipation fin 25 to be inclined, the water flowing out of the drainage end of the water cooling pipe 36 can flow along the inclined surface of the fins, taking away the heat on the fins, and achieving the heat dissipation effect. The water returning to the water tank 28 can be cooled by the heat dissipation component, so that the water temperature is lower than the air temperature. Through the design of the branch pipe 1 32 and the branch pipe 2 33, a water cooling branch is opened in the original water cooling cycle, and a part of the intake pipe 6 is located in the branch pipe 2 33, and the water temperature in the branch pipe 2 33 is lower than the air temperature, so that the external gas sucked by the intake pump 5 passes through the intake pipe located in the branch pipe 2 33. When the pipe 6 is in the part, it can be cooled by the cold water in the branch pipe 2 33, so that the temperature of the gas entering the air-cooling pipe 7 is further reduced, so as to achieve a better heat dissipation effect. The return water can be transported from the water inlet pipe 1 38 to the water storage pipe 39 through the water pump 2 37, and then input into the water storage bucket 42 through the connecting pipe 40 and the annular pipe 41, and finally overflow from the water storage bucket 42 and fall into the inner cavity of the water tank 28. The return water can be diverted by the water storage pipe 39 in coordination with the connecting pipe 40, the annular pipe 41 and the water storage bucket 42, and the water in the water storage bucket 42 and the water tank 28 can be cooled by the fan 29, so that the return water and the water in the water tank 28 can be cooled quickly, and the water level sensor 43 can be used to detect the water level. The water level in the water tank 28 is sensed in real time. When the water level is lower than the set value due to evaporation, water is supplied to the water tank 28 through the water inlet pipe 44 through the external water supply device to maintain the water level in the water tank 28. By designing the air inlet pipe 6 located in the branch pipe 33 to be spiral, the length of the air inlet pipe 6 in the branch pipe 33 is increased, so that the time for the gas to flow in the air inlet pipe 6 in the branch pipe 33 is increased, thereby facilitating the cooling of the gas by the cold water. The spiral groove on the inner wall of the water storage bucket 42 cooperates with the nozzle on the annular pipe 41, so that the refluxed water will stir the water in the water storage bucket 42 when entering the water storage bucket 42, and cooperate with the fan 29 to facilitate cooling the water in the water storage bucket 42.

[0045] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An explosion-proof power distribution device, characterized in that: The invention comprises a box body (1), the bottom end of which is fixedly connected to a base (2), the inner cavity of which is fixedly connected to a mounting frame (3), both sides of which are provided with air cooling pipes (7), the air cooling pipes (7) are fixedly connected to the inner wall of the box body (1), and the air cooling pipes (7) extend from the bottom of the inner cavity of the box body (1) to the top of the inner cavity of the box body (1), the air cooling pipes (7) are in a serpentine shape, both sides of the outer walls of the base (2) are fixedly connected to air intake hoppers (4), the inner wall of which is fixedly installed with an air intake pump (5), the top of which is fixedly connected to an air intake pipe (6), the end of which, away from the air intake hopper (4), extends into the inner cavity of the box body (1) and is fixedly connected to the bottom end of the air cooling pipe (7), the inner cavity of the box body (1) is symmetrically provided with A regulating tube (10), wherein the regulating tube (10) is serpentine-shaped, one end of the regulating tube (10) is fixedly connected to the top end of the air cooling tube (7), one end of the two regulating tubes (10) away from the air cooling tube (7) is fixedly connected to an air outlet pipe (11), the air outlet pipe (11) is in an inverted L-shape, the bottom end of the air outlet pipe (11) extends to the bottom of the box body (1), the outer side of the straight tube wall of the air cooling tube (7) is fixedly connected with a heat dissipation fin (9), the heat dissipation fin (9) is annular, a gas detector (8) is fixedly installed on the inner wall of the air inlet pipe (6), an explosion-proof fire extinguishing tank (13) and a smoke sensor (12) are fixedly connected to the top of the inner cavity of the box body (1), a fire extinguishing assembly is provided at the bottom of the regulating tube (10), and the explosion-proof fire extinguishing tank (13) is compatible with the fire extinguishing assembly; The fire extinguishing assembly comprises an electric push rod (14), a hanger (15) and an injection pipe (18); the top of the inner cavity of the box body (1) is fixedly connected to the electric push rod (14); the output end of the electric push rod (14) is fixedly connected to the hanger (15); the hanger (15) is evenly fixedly connected to support rods (16); the support rods (16) correspond to the straight pipes of the regulating pipe (10) one by one; the bottom of the straight pipe of the regulating pipe (10) is evenly fixedly connected to the injection pipe (18); a rotating shaft (20) is rotatably connected to the pipe wall of the injection pipe (18); one end of the rotating shaft (20) extends to the injection pipe (18); A sealing plate (19) is fixedly connected to the inner cavity of the injection pipe (18), the sealing plate (19) is in contact with the inner wall of the injection pipe (18), the other end of the rotating shaft (20) extends to the outside of the injection pipe (18) and is fixedly connected to a gear (21), the support rod (16) is evenly fixedly connected to a rack plate (17), the rack plate (17) and the gear (21) are meshed one by one, the explosion-proof fire extinguishing tank (13) is connected to the outlet pipe (11), a control valve is installed at the L-shaped bend of the outlet pipe (11), and a control valve is installed at one end of the regulating pipe (10) close to the air cooling pipe (7).

2. An explosion-proof power distribution device according to claim 1, characterized in that: The mounting frame (3) is a metal component. Two air cooling chambers (22) are arranged in the mounting frame (3). The air cooling chamber (22) is serpentine-shaped. A connecting pipe (23) is fixedly connected to the bottom end of the air cooling chamber (22). The end of the connecting pipe (23) away from the air cooling chamber (22) is fixedly connected to the bottom end of the air cooling tube (7). A connecting pipe (24) is fixedly connected to the top end of the air cooling chamber (22). The end of the connecting pipe (24) away from the air cooling chamber (22) is fixedly connected to the top end of the air cooling tube (7).

3. An explosion-proof power distribution device according to claim 2, characterized in that: The outer walls on both sides of the box body (1) are fixedly connected with heat dissipation fins 2 (25), the heat dissipation fins 2 (25) are plug-in type, the heat dissipation fins 2 (25) are fixedly connected with a water cooling box (26), and the fins of the heat dissipation fins 2 (25) extend into the inner cavity of the water cooling box (26).

4. An explosion-proof power distribution device according to claim 3, characterized in that: A U-shaped frame (27) is fixedly connected to the base (2), one end of the U-shaped frame (27) away from the base (2) extends to the top of the box body (1), a water tank (28) is fixedly connected to the top of the U-shaped frame (27), a water pump (30) and a water outlet pipe (31) are fixedly connected to the outer wall of the water tank (28), one end of the water pump (30) is connected to the bottom of the side wall of the water tank (28), and the other end of the water pump (30) is connected to the middle of the water outlet pipe (31), the water outlet pipe (31) is in an inverted U shape, and connecting pipes (35) are fixedly connected to the side walls at both ends of the water outlet pipe (31), and the bottom end of the connecting pipe (35) is connected to the bottom end of the connecting pipe (35). A water cooling pipe (36) is fixedly connected, and the water cooling pipe (36) is connected to the water cooling box (26). A return pipe (34) is provided on the side of the water cooling box (26) away from the water cooling pipe (36). A water inlet pipe (38) is symmetrically fixedly connected to the top of the water tank (28). Water pump (37) is fixedly installed on both sides of the water tank (28). One end of water pump (37) is connected to water inlet pipe (38), and the other end of water pump (37) is connected to the return pipe (34). A water outlet is provided at the bottom of the side of the water cooling box (26) away from the water cooling pipe (36), and the water outlet of the water cooling box (26) is connected to the return pipe (34).

5. An explosion-proof power distribution device according to claim 4, characterized in that: The fins on the second heat dissipation fin (25) are all inclined toward the side of the return pipe (34), and the water cooling pipe (36) is evenly provided with drainage ends. The drainage ends on the water cooling pipe (36) extend into the water cooling box (26) and correspond one-to-one with the fins on the second heat dissipation fin (25).

6. An explosion-proof power distribution device according to claim 5, characterized in that: The bottom ends of both sides of the water outlet pipe (31) are fixedly connected to branch pipe 1 (32), a branch pipe 2 (33) is provided below the water cooling box (26), one end of the branch pipe 1 (32) away from the water outlet pipe (31) is fixedly connected to branch pipe 2 (33), one end of the branch pipe 2 (33) away from branch pipe 1 (32) is fixedly connected to the bottom end of the return pipe (34), a part of the air inlet pipe (6) is located in branch pipe 2 (33), and a heat dissipation component is provided on the water box (28).

7. An explosion-proof power distribution device according to claim 6, characterized in that: The heat dissipation assembly comprises a fan (29), a water storage bucket (42) and a water level sensor (43); the fan (29) is evenly fixedly connected to the top of the water tank (28); a water storage pipe (39) is fixedly connected to the top of the inner wall of the water tank (28); an end of the water inlet pipe (38) away from the water pump (37) extends into the water tank (28) and communicates with the water storage pipe (39); a water storage bucket (42) is evenly fixedly connected to the bottom of the inner cavity of the water tank (28); the water storage bucket (42) and the fan (29) are connected to each other. 9) correspond one to one, an annular tube (41) is provided on the outer side of the bottom of the water storage bucket (42), the water storage pipe (39) and the annular tube (41) are connected via a connecting tube four (40), nozzles are evenly fixed on the inner wall of the annular tube (41), and one end of the nozzle away from the annular tube (41) extends to the bottom of the inner cavity of the water storage bucket (42), a water level sensor (43) is installed in the water tank (28), and a water inlet pipe two (44) is fixed to the bottom of the side wall of the water tank (28).

8. An explosion-proof power distribution device according to claim 7, characterized in that: The portion of the air inlet pipe (6) located inside the second branch pipe (33) is spiral-shaped.

9. An explosion-proof power distribution device according to claim 8, characterized in that: The inner wall of the water storage bucket (42) is provided with a spiral groove.

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