Fire protection device for electrical equipment

Abstract

The utility model discloses an electrical equipment fire prevention device, it includes: fireproof box, fluorinated liquid storage tank, lye storage tank, liquid carbon dioxide storage tank, water spraying storehouse, water spraying disc, water spraying ring, cooling storehouse, fin, first shower nozzle and second shower nozzle, utilize first water pump to send fluorinated liquid through second water pipe and give cooling storehouse, give fin cooling, take away the heat of electrical equipment through fin, utilize first water pump to send fluorinated liquid through first water pipe and give water spraying ring, spray fluorinated liquid to the electrical equipment below through first shower nozzle and carry out fire extinguishing, and send carbon dioxide to water spraying disc through liquid carbon dioxide storage tank, improve the fire extinguishing rate, after fire extinguishing is completed, send lye to water spraying disc through lye storage tank, utilize lye and electrical equipment surface and all around residual fluorinated liquid and carry out neutralization disinfection, avoid staff poisoning problem.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment safety technology, and in particular to a fire prevention device for electrical equipment. Background Technology

[0002] Electrical equipment is a general term for equipment such as generators, transformers, power lines, and circuit breakers in a power system. Outdoor electrical equipment is exposed to the air and is affected by various factors such as temperature and humidity, which can significantly reduce the lifespan of its internal electrical components and pose a certain risk of spontaneous combustion. Therefore, fire prevention for electrical equipment is particularly important in most areas.

[0003] Most existing fire prevention devices for electrical equipment can only extinguish fires after they have started, failing to effectively dissipate heat to reduce the risk of spontaneous combustion. Furthermore, the extinguishing process itself pollutes the environment. The primary cause of electrical equipment fires is poor heat dissipation, leading to overheating and spontaneous combustion of electronic equipment. Additionally, some extinguishing agents leave toxic residues within the fire prevention device after extinguishing the fire, potentially posing a threat to the environment and the health of workers. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to provide a fire prevention device for electrical equipment, which cools down the electrical equipment and extinguishes fires after spontaneous combustion, avoiding the harm to workers caused by residual toxic substances after fire extinguishing.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A fireproof device for electrical equipment includes: a fireproof box 1, a fluorinated liquid storage tank 20, an alkaline liquid storage tank 34, a liquid carbon dioxide storage tank 46, a spray chamber 38, a spray plate 42, a spray ring 29, a cooling chamber 13, a heat sink 12, a first nozzle 30, and a second nozzle 43. The fireproof box 1 has a fixing ring 9, and a spray chamber is formed above the fixing ring 9. The electrical equipment 8 is placed on the fixing ring 9 and positioned by the fixing ring 9. The heat sink 12 is located below the fixing ring 9 and contacts the bottom of the electrical equipment 8. The cooling chamber 13 is located in the fireproof box 1 and below the heat sink 12. The fluorinated liquid storage tank 20 is located in the fireproof box 1 and below the cooling chamber 13. The bottom of the cooling chamber 13 has a point pointing towards the fluorinated liquid storage tank. The fluorinated liquid storage tank 20 has a drain pipe 26. A first water pump 23 is installed in the fluorinated liquid storage tank 20. The spray plate 42 and spray ring 29 are installed in the fireproof box 1 and located above the electrical equipment 8. The outlet of the first water pump 23 is provided with a first water supply pipe 24 connected to the spray ring 29 and a second water supply pipe 25 extending to the cooling chamber 13. The first nozzles 30 are spaced apart at the bottom of the spray ring 29, and the second nozzles 43 are spaced apart at the bottom of the spray plate 42. A first connecting pipe 37 connected to the spray chamber 38 is provided on the liquid carbon dioxide storage tank 46. A second connecting pipe 35 connected to the spray chamber 38 is provided on the alkali storage tank 34. A third water supply pipe 41 connected to the spray plate 42 is provided on the spray chamber 38.

[0007] The fixing ring 9 is vertically provided with an air extraction pipe 11 for adsorbing and fixing the heat sink 12 and a miniature air pump 10 connected to the top of the air extraction pipe 11.

[0008] The cooling chamber 13 is equipped with stirring blades 17, and a motor cover 14 is provided at the bottom of the cooling chamber 13. A drive motor 15 is provided in the motor cover 14, and the drive shaft 16 of the drive motor 15 extends upward and is connected to the stirring blades 17.

[0009] The cooling chamber 13 is equipped with a liquid level sensor 18 and a temperature sensor 19.

[0010] The drain pipe 26 is equipped with a first solenoid valve 27, and the first connecting pipe 37 and the second connecting pipe 35 are respectively equipped with second solenoid valves 36.

[0011] The fireproof box 1 has a first sealing plate 2 for enclosing the spray chamber on the front, and the first sealing plate 2 is equipped with a handle 3 and a transparent plate 4.

[0012] The fireproof box 1 has a fixed box 31 on its back, the alkali storage box 34 and the liquid carbon dioxide storage box 46 are installed in the fixed box 31, and the alkali storage box 34 is equipped with a second water pump.

[0013] The fixed box 31 is provided with a second sealing plate 32 on the side opposite to the fireproof box 1, and a temperature control plate 33 is provided in the fixed box 31 located outside the liquid carbon dioxide storage box 46.

[0014] The fireproof box 1 has a ventilation net 5 connected to the spray chamber and first electric slide rails 6 on both sides of the ventilation net 5. A sealing slide plate 7 for sliding and closing the ventilation net 5 is provided between the first electric slide rails 6 on both sides. The fluorinated liquid storage tank 20 has an impurity filter box 22 and second electric slide rails 21 on both sides of the impurity filter box 22. The front end of the impurity filter box 22 is provided with a handle 28. The fireproof box 1 has a third electric slide rail 44 on both sides of the spray plate 42. A cleaning brush 45 passing through the bottom of the second nozzle 43 is provided between the third electric slide rails 44 on both sides.

[0015] The beneficial effects of this utility model are as follows: A fire prevention device for electrical equipment. When the electrical equipment 8 is working, the first water pump 23 delivers fluorinated liquid to the cooling chamber 13 through the second water pipe 25 to cool the heat sink 12. The heat sink 12 removes heat from the electrical equipment 8, reducing the high temperature problem. When the electrical equipment 8 spontaneously combusts, the first water pump 23 delivers fluorinated liquid to the spray ring 29 through the first water pipe 24. The fluorinated liquid is sprayed onto the electrical equipment 8 below through the first nozzle 30 to extinguish the fire. Simultaneously, carbon dioxide is supplied to the spray plate 42 through the liquid carbon dioxide storage tank 46 and sprayed onto the electrical equipment 8 below through the second nozzle 43, increasing the fire extinguishing rate. After extinguishing the fire, alkali solution is supplied to the spray plate 42 through the alkali solution storage tank 34 and sprayed onto the electrical equipment 8. The alkali solution neutralizes and disinfects the residual fluorinated liquid on and around the electrical equipment 8, preventing worker poisoning and improving safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 yes Figure 1 Rear view;

[0018] Figure 3 yes Figure 1 The lower sectional view;

[0019] Figure 4 yes Figure 3 A magnified view of part A in the middle;

[0020] Figure 5 yes Figure 3 Another viewpoint;

[0021] Figure 6 yes Figure 1 Top sectional view;

[0022] Figure 7 yes Figure 1 Schematic diagram of the structure of the fixed box in the middle;

[0023] Figure 8 yes Figure 7 Schematic diagram of the structure of the alkaline solution storage tank and the liquid carbon dioxide storage tank. Detailed Implementation

[0024] The following is combined with Figures 1 to 8 The technical solution of this utility model will be further illustrated through specific embodiments.

[0025] like Figures 1 to 8 The fire protection device for electrical equipment 8 shown is used for heat dissipation and fire prevention. It includes: a fireproof box 1, a fluorinated liquid storage tank 20, an alkaline liquid storage tank 34, a liquid carbon dioxide storage tank 46, a water spray chamber 38, a water spray tray 42, a water spray ring 29, a cooling chamber 13, heat sinks 12, a first nozzle 30, and a second nozzle 43. A fixing ring 9 is provided in the fireproof box 1, and a spray chamber is formed above the fixing ring 9. The electrical equipment 8 is placed on the fixing ring 9 and positioned by it. Furthermore, a heat-sensitive fire detector is installed in the fireproof box 1 to monitor the electrical equipment 8, detect spontaneous combustion, and send a signal to the controller.

[0026] like Figure 2 and Figure 6 The fixed ring 9 is vertically provided with an air extraction pipe 11 for adsorbing and fixing the heat sink 12 and a micro air pump 10 connected to the top of the air extraction pipe 11. The micro air pump 10 takes out the gas in the air extraction pipe 11 to form a negative pressure, so that the air extraction pipe 11 can adsorb and fix the heat sink 12. The operation is simple and the heat sink 12 can be easily replaced to adapt to the structure of the bottom of different electrical equipment 8.

[0027] A first sealing plate 2 for enclosing the spray chamber is provided on the front of the fireproof box 1. The first sealing plate 2 is provided with a handle 3 and a viewing plate 4. The handle 3 facilitates the opening of the first sealing plate 2, and the viewing plate 4 allows for observation of the interior after the first sealing plate 2 is closed to confirm whether the electrical equipment 8 is working properly.

[0028] The heat sink 12 is positioned below the fixing ring 9 and in contact with the bottom of the electrical equipment 8 to dissipate heat from the electrical equipment 8, thereby enhancing the cooling effect, reducing the high temperature and spontaneous combustion problems of the electrical equipment 8, and making its use more stable and safe.

[0029] The cooling chamber 13 is placed in the fireproof box 1 and located below the heat sink 12. The fluorinated liquid storage tank 20 is placed in the fireproof box 1 and located below the cooling chamber 13. The bottom of the cooling chamber 13 is provided with a drain pipe 26 pointing to the fluorinated liquid storage tank 20. In this embodiment, the drain pipe 26 is provided with a first solenoid valve 27. The first solenoid valve 27 is controlled by a controller (PLC) to open the first solenoid valve 27, and the fluorinated liquid in the cooling chamber 13 is sent back to the fluorinated liquid storage tank 20 through the drain pipe 26 for circulation cooling.

[0030] Fluorinated liquid has insulating and non-flammable inert properties, which can both cool electrical equipment 8 and extinguish fires, achieving two goals at once. The cooling chamber 13 is equipped with stirring blades 17, and a motor cover 14 is provided at the bottom of the cooling chamber 13. The motor cover 14 houses a drive motor 15, and the drive shaft 16 of the drive motor 15 extends upward and is connected to the stirring blades 17 to stir the fluorinated liquid in the cooling chamber 13, thereby improving the uniformity of temperature distribution and achieving uniform heat dissipation of the heat sink 12.

[0031] like Figure 5 and Figure 6 As shown, a first water pump 23 is installed in the fluorinated liquid storage tank 20. The spray plate 42 and spray ring 29 are installed in the fireproof box 1 and located above the electrical equipment 8. The outlet of the first water pump 23 is provided with a first water supply pipe 24 connected to the spray ring 29 and a second water supply pipe 25 extending to the cooling chamber 13. The first nozzles 30 are spaced apart at the bottom of the spray ring 29. The first water pump 23 delivers the fluorinated liquid to the cooling chamber 13 through the second water supply pipe 25 to cool the heat sink 12. The heat sink 12 removes heat from the electrical equipment 8, reducing the high temperature problem of the electrical equipment 8. When the electrical equipment 8 spontaneously combusts, the first water pump 23 delivers the fluorinated liquid to the spray ring 29 through the first water supply pipe 24, and the first nozzles 30 spray the fluorinated liquid onto the electrical equipment 8 below for fire extinguishing.

[0032] A liquid level sensor 18 and a temperature sensor 19 are installed in the cooling chamber 13 to detect the liquid level and temperature of the fluorinated liquid. When the liquid level of the fluorinated liquid is high, the operation of the first water pump 23 is stopped to reduce costs. When the liquid level of the fluorinated liquid is stably high, the first solenoid valve 27 is opened by the controller (PLC), and the fluorinated liquid in the cooling chamber 13 is sent back to the fluorinated liquid storage tank 20 through the drain pipe 26 for circulation cooling. The first water pump 23 is used to send the low-temperature fluorinated liquid in the fluorinated liquid storage tank 20 into the cooling chamber 13 to ensure cooling efficiency.

[0033] like Figure 1As shown, a ventilation net 5 connected to the sprinkler chamber and first electric slide rails 6 located on both sides of the ventilation net 5 are provided on the side of the fireproof box 1. Normally, the ventilation net 5 is used for ventilation and heat dissipation to enhance the cooling of electrical equipment 8. A sealing slide plate 7 is provided between the first electric slide rails 6 on both sides to slide and close the ventilation net 5. In the event of spontaneous combustion, the controller controls the first electric slide rails 6 to move the sealing slide plate 7 to the outer side of the ventilation net 5 to seal it, preventing oxygen from entering the fireproof box 1 and improving the fire extinguishing effect.

[0034] like Figure 3 As shown, an impurity filter box 22 and second electric slide rails 21 located on both sides of the impurity filter box 22 are horizontally movable outwards in the fluorinated liquid storage tank 20. A drain pipe 26 directs the fluorinated liquid to the impurity filter box 22, filters it, and then returns it to the fluorinated liquid storage tank 20, preventing impurities from clogging the first water pump 23. Impurities remain in the impurity filter box 22 and require cleaning. The controller can control the movement of the second electric slide rails 21, allowing the impurity filter box 22 to slide out automatically for easy cleaning, such as replacing the filter screen. Furthermore, a handle 28 is provided at the front end of the impurity filter box 22, allowing for manual pushing and pulling of the impurity filter box 22, simplifying operation.

[0035] like Figure 6 As shown, the second nozzles 43 are spaced apart at the bottom of the spray plate 42. The fireproof box 1 is provided with third electric slide rails 44 located on both sides of the spray plate 42. A cleaning brush 45 passing through the bottom of the second nozzles 43 is provided between the two third electric slide rails 44. The controller can control the movement of the third electric slide rails 44 to drive the cleaning brush 45 to clean the second nozzles 43 and avoid clogging.

[0036] like Figure 7 and Figure 8 As shown, a fixed box 31 is provided on the back of the fireproof box 1. The alkali storage box 34 and the liquid carbon dioxide storage box 46 are placed in the fixed box 31, improving space utilization. A second sealing plate 32 is provided on the side of the fixed box 31 away from the fireproof box 1 for easy opening and maintenance. A temperature control plate 33 is provided in the fixed box 31 on the outside of the liquid carbon dioxide storage box 46. The temperature control plate 33 is a DL-type ultra-low temperature cooling plate, which can cool the liquid carbon dioxide storage box 46, which is beneficial for the storage of liquid carbon dioxide.

[0037] The alkali storage tank 34 is equipped with a second water pump, which can be controlled by a controller to pump the alkali solution in the storage tank 34. A first connecting pipe 37 is provided on the liquid carbon dioxide storage tank 46, connecting it to the spray chamber 38. A second connecting pipe 35 is provided on the alkali storage tank 34, connecting it to the spray chamber 38. A third water supply pipe 41 is provided on the spray chamber 38, connecting it to the spray plate 42. In this embodiment, a second solenoid valve 36 is respectively provided on the first connecting pipe 37 and the second connecting pipe 35, and controlled by a controller.

[0038] When electrical equipment 8 spontaneously combusts, the second solenoid valve on the first connecting pipe 37 is opened. Carbon dioxide is supplied to the spray tray 42 through the liquid carbon dioxide storage tank 46, and the carbon dioxide is sprayed onto the electrical equipment 8 below using the second nozzle 43, increasing the fire extinguishing rate. After the fire is extinguished, the second solenoid valve on the second connecting pipe 35 is opened, and alkali solution is supplied to the spray tray 42 through the alkali solution storage tank 34, sprayed onto the electrical equipment 8. The alkali solution neutralizes and disinfects the residual fluoride liquid on and around the surface of the electrical equipment 8, preventing poisoning of personnel and improving safety.

[0039] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. An electrical equipment fireproofing device for heat dissipation and fireproofing of electrical equipment (8), characterized in that, include: The fireproof box (1), fluorinated liquid storage tank (20), alkali liquid storage tank (34), liquid carbon dioxide storage tank (46), spray chamber (38), spray plate (42), spray ring (29), cooling chamber (13), heat sink (12), first nozzle (30) and second nozzle (43) are provided. A fixing ring (9) is provided in the fireproof box (1), and a spray chamber is formed above the fixing ring (9). The electrical equipment (8) is placed on the fixing ring (9) and positioned by the fixing ring (9). The heat sink (12) is set below the fixing ring (9) and contacts the bottom of the electrical equipment (8). The cooling chamber (13) is set in the fireproof box (1) and is located below the heat sink (12). The fluorinated liquid storage tank (20) is set in the fireproof box (1) and is located below the cooling chamber (13). The bottom of the cooling chamber (13) is provided with a drain pointing to the fluorinated liquid storage tank (20). A water pipe (26) is provided in the fluorinated liquid storage tank (20), a first water pump (23) is provided in the water pipe (26), the water spray plate (42) and the water spray ring (29) are provided in the fireproof box (1) and above the electrical equipment (8), the outlet of the first water pump (23) is provided with a first water supply pipe (24) connected to the water spray ring (29) and a second water supply pipe (25) extending to the cooling chamber (13), the first nozzle (30) is spaced at the bottom of the water spray ring (29), the second nozzle (43) is spaced at the bottom of the water spray plate (42), the liquid carbon dioxide storage tank (46) is provided with a first connecting pipe (37) connected to the water spray chamber (38), the alkali storage tank (34) is provided with a second connecting pipe (35) connected to the water spray chamber (38), and the water spray chamber (38) is provided with a third water supply pipe (41) connected to the water spray plate (42).

2. The electrical device fire prevention apparatus of claim 1, wherein, The fixed ring (9) is vertically provided with an air extraction pipe (11) for adsorbing and fixing the heat sink (12) and a miniature air pump (10) connected to the top of the air extraction pipe (11).

3. The electrical device fire prevention apparatus of claim 1, wherein, The cooling chamber (13) is provided with stirring blades (17), and the bottom of the cooling chamber (13) is provided with a motor cover (14). The motor cover (14) is provided with a drive motor (15), and the drive shaft (16) of the drive motor (15) extends upward and is connected to the stirring blades (17).

4. The electrical device fire prevention apparatus of claim 1, wherein, The cooling chamber (13) is equipped with a liquid level sensor (18) and a temperature sensor (19).

5. The electrical device fire prevention apparatus of claim 1, wherein, A first solenoid valve (27) is provided on the drain pipe (26), and a second solenoid valve (36) is provided on the first connecting pipe (37) and the second connecting pipe (35).

6. The electrical device fire prevention apparatus of claim 1, wherein, The fireproof box (1) has a first sealing plate (2) for enclosing the spray chamber on the front, and a handle (3) and a transparent plate (4) are provided on the first sealing plate (2).

7. The electrical device fire prevention apparatus of claim 1, wherein, The fireproof box (1) has a fixed box (31) on the back. The alkali storage box (34) and the liquid carbon dioxide storage box (46) are installed in the fixed box (31). The alkali storage box (34) is equipped with a second water pump.

8. The fire prevention device for electrical equipment according to claim 7, characterized in that, The fixed box (31) is provided with a second sealing plate (32) on the side away from the fireproof box (1), and a temperature control plate (33) is provided in the fixed box (31) located outside the liquid carbon dioxide storage box (46).

9. The fire prevention device for electrical equipment according to claim 1, characterized in that, The fireproof box (1) is provided with a ventilation net (5) connected to the spray chamber on the side and a first electric slide rail (6) on both sides of the ventilation net (5). A sealing slide plate (7) for sliding and closing the ventilation net (5) is provided between the first electric slide rails (6) on both sides. The fluorinated liquid storage box (20) is provided with an impurity filter box (22) and a second electric slide rail (21) on both sides of the impurity filter box (22). A handle (28) is provided at the front end of the impurity filter box (22). The fireproof box (1) is provided with a third electric slide rail (44) on both sides of the spray plate (42). A cleaning brush (45) passing through the bottom of the second nozzle (43) is provided between the third electric slide rails (44) on both sides.

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