Electrochemical energy storage fire suppression device

Abstract

The utility model provides an electrochemical energy storage fire suppression device, and belongs to the technical field of fire safety. Comprising a box body, a fire extinguishing bottle and a motor pump set are arranged in the box body, an air inlet is formed in the outer side wall of the fire extinguishing bottle, a liquid outlet is formed in one end of the fire extinguishing bottle and connected with the liquid inlet end of the motor pump set, valves are arranged at the air inlet and the liquid outlet of the fire extinguishing bottle, and a first liquid discharging pipe is arranged at the liquid outlet end of the motor pump set; one end of the first liquid discharge pipe is provided with a connector used for being connected with a water supply pipe in the energy storage cabinet, the connector is embedded in one side of the box body, the motor pump set is in acting connection with a temperature sensor, and the temperature sensor is arranged on a battery cluster in the energy storage cabinet. According to the electrochemical energy storage fire suppression device, fire control can be accurately conducted on the single energy storage cabinet, when the battery cluster is overheated but does not spontaneously ignite, the battery cluster can be cooled by the sprayed fire extinguishing agent, the effect of saving resources is achieved, and the effect of improving the safety of the energy storage cabinet is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire safety, in particular to an electrochemical energy storage fire suppression device. Background Art

[0002] With the development of energy storage technology, the number of electrochemical energy storage stations has also grown rapidly. Electrochemical energy storage stations are usually equipped with multiple energy storage cabinets, in which battery clusters are installed. During the operation of the battery cluster, overheating is prone to occur due to rapid discharge, overcharging, short circuit, etc. Long-term overheating can cause the battery cluster to spontaneously combust. Therefore, it is necessary to adopt fire suppression devices to control fire in the energy storage station.

[0003] Traditional fire suppression devices include aerosol fire extinguishing devices. A pipe network connected to the aerosol fire extinguishing device is installed on the top wall of the energy storage station. Sprinklers are installed on the pipe network above multiple energy storage cabinets. There are also smoke detectors in the house, which are functionally connected to the aerosol fire extinguishing device. When the battery cluster spontaneously ignites, smoke will be generated. When the smoke detector detects smoke in the house, the aerosol fire extinguishing device is activated and sprays fire extinguishing agent to the energy storage cabinet below through multiple nozzles.

[0004] This fire suppression device can spray fire extinguishing agent to all energy storage cabinets through multiple nozzles to achieve the function of fire control when the battery cluster burns, but this full coverage fire extinguishing method has the problem of waste of resources. Utility Model Content

[0005] In view of the above problems, the utility model provides an electrochemical energy storage fire suppression device.

[0006] In order to achieve the above-mentioned invention object, the technical solution adopted by the utility model is as follows:

[0007] Provided is an electrochemical energy storage fire suppression device, which is used for spraying a fire extinguishing agent on a battery cluster in an energy storage cabinet. A water supply pipe is provided in the energy storage cabinet, and a plurality of nozzles are provided on the water supply pipe. The device comprises a box body for being installed on the top of the energy storage cabinet, a fire extinguishing bottle and a motor pump group are provided in the box body, an air inlet is provided on the outer wall of the fire extinguishing bottle, a liquid outlet is provided at one end of the fire extinguishing bottle, and the liquid outlet is connected to the liquid inlet end of the motor pump group, valves are provided at the air inlet and the liquid outlet of the fire extinguishing bottle, a first liquid discharge pipe is provided at one end of the first liquid discharge pipe, and a joint for connecting to the water supply pipe in the energy storage cabinet is provided, and the joint is embedded in one side of the box body, and the motor pump group is connected to a temperature sensor, and the temperature sensor is provided on the battery cluster in the energy storage cabinet. When the temperature sensor detects that the temperature of the battery cluster is greater than the temperature threshold of the battery cluster under normal working conditions, the motor pump group starts and transports the fire extinguishing agent in the fire extinguishing bottle to the water supply pipe.

[0008] Furthermore, a one-way air inlet valve is connected between the air inlet of the fire extinguisher bottle and the corresponding valve, and the air inlet end of the one-way air inlet valve is located on a side of the valve close to the fire extinguisher bottle.

[0009] Furthermore, a bracket is provided on the bottom wall of the box body, the fire extinguisher bottle is horizontally placed on the bracket, and a positioning groove with an arc matching the outer wall of the fire extinguisher bottle is opened on the bracket.

[0010] Furthermore, a second liquid discharge pipe is provided at the liquid outlet in the fire extinguisher bottle, one end of the second liquid discharge pipe is connected to the valve at the liquid outlet, and the other end of the second liquid discharge pipe extends to the inner wall of the fire extinguisher bottle.

[0011] Furthermore, a material taking port is provided on the top of the box body, and a sealing cover is detachably connected to the material taking port. The sealing cover is provided with a limiter for limiting the axial movement of the fire extinguisher bottle in the box body. The limiter includes two clamping blocks, and the two clamping blocks are slidably arranged on the inner side of the sealing cover along a direction parallel to the axis of the fire extinguisher bottle. The two ends of the fire extinguisher bottle are spherical arc tops, and the two clamping blocks are respectively in movably contact with the arc tops at the two ends. The side of the clamping block for contacting the arc top is set as an inclined slope, and the sides of the two clamping blocks facing away from each other are respectively in movably abutted against the two inner side walls of the box body.

[0012] Furthermore, a liquid level sensor for detecting the internal fire extinguishing agent liquid level is provided in the fire extinguishing bottle. The liquid level sensor is operatively connected to an alarm device. When the liquid level sensor detects that the fire extinguishing agent liquid level is lower than the normal amount of liquid required by the fire extinguishing bottle, the alarm device sounds an alarm.

[0013] The beneficial effects of the utility model are as follows: when the temperature sensor detects that the temperature of the battery cluster is greater than the temperature threshold of the battery cluster under normal operating conditions, the two valves open, and the controller controls the motor pump group to start and transport the fire extinguishing agent in the fire extinguishing bottle to the water supply pipe; when the temperature sensor detects that the temperature of the battery cluster drops to the temperature threshold of the battery cluster under normal operating conditions, the controller controls the motor pump group to stop running, and the two valves are closed, so that fire control of a single energy storage cabinet can be accurately performed, and the battery cluster can be cooled by the sprayed fire extinguishing agent when it is overheated but not self-ignited, which has the effect of saving resources and improving the safety of the energy storage cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of an electrochemical energy storage fire suppression device according to an embodiment of the present application.

[0015] Figure 2 This is a schematic diagram of the internal structure of an energy storage cabinet of an electrochemical energy storage fire suppression device in an embodiment of the present application.

[0016] Figure 3 Schematic diagram of the internal structure of a box of an electrochemical energy storage fire suppression device in an embodiment of the present application.

[0017] Figure 4 This is a schematic diagram of the connection structure between a fire extinguisher bottle and a motor pump group of an electrochemical energy storage fire suppression device in an embodiment of the present application.

[0018] Figure 5 A schematic diagram of a bracket structure of an electrochemical energy storage fire suppression device in an embodiment of the present application.

[0019] Figure 6 Schematic diagram of the internal structure of a fire extinguisher bottle of an electrochemical energy storage fire suppression device according to an embodiment of the present application.

[0020] Figure 7 A schematic diagram of the structure of a limiter for an electrochemical energy storage fire suppression device according to an embodiment of the present application.

[0021] Among them, 1. Energy storage cabinet; 11. Battery cluster; 12. Water supply pipe; 13. Nozzle; 2. Box; 21. Sealing cover; 3. Fire extinguisher; 31. Air inlet; 32. Liquid outlet; 33. Filling head; 34. Drain head; 4. Motor pump group; 5. First drain pipe; 51. Connector; 52. Second drain pipe; 6. Temperature sensor; 7. Valve; 8. One-way air inlet valve; 9. Bracket; 91. Positioning groove; 10. Clamp; 101. Inclined surface; 102. Guide rail; 20. Liquid level sensor; 201. Alarm device; 30. Spare battery pack. DETAILED DESCRIPTION

[0022] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] The present application discloses an electrochemical energy storage fire suppression device, referring to Figure 1 , Figure 2 and Figure 3 , including a box body 2 for installation on the top of the energy storage cabinet 1, a fire extinguisher bottle 3 and a motor pump group 4 are installed in the box body 2, an air inlet 31 is opened on the outer wall of the fire extinguisher bottle 3, and a liquid outlet 32 ​​is also provided at one end of the fire extinguisher bottle 3, and the liquid outlet 32 ​​is connected to the liquid inlet end of the motor pump group 4, and valves 7 are provided at the air inlet 31 and the liquid outlet 32 ​​of the fire extinguisher bottle 3. The liquid outlet end of the motor pump group 4 is connected to a first liquid discharge pipe 5, and one end of the first liquid discharge pipe 5 is installed with a joint 51 for connecting to the water supply pipe 12 in the energy storage cabinet 1, and the joint 51 is embedded in one side of the box body 2. The motor pump group 4 is operatively connected to a controller, and the controller is operatively connected to a temperature sensor 6, and the temperature sensor 6 is installed on the battery cluster 11 in the energy storage cabinet 1.

[0024] In the embodiment of the present application, a plurality of nozzles 13 are provided on the water supply pipe 12 of the energy storage cabinet 1, and the fire extinguishing agent adopts perfluorohexanone fire extinguishing agent. When the temperature sensor 6 detects that the temperature of the battery cluster 11 is greater than the temperature threshold of the battery cluster 11 under normal working conditions, the two valves 7 are opened, and the controller controls the motor pump group 4 to start and deliver the fire extinguishing agent in the fire extinguishing bottle 3 to the water supply pipe 12; when the temperature sensor 6 detects that the temperature of the battery cluster 11 drops to the temperature threshold of the battery cluster 11 under normal working conditions, the controller controls the motor pump group 4 to stop running, and the two valves 7 are closed. The temperature threshold of the battery cluster 11 under normal working conditions can be obtained by the staff through experiments and written into the controller through a program. The controller can adopt an integrated circuit board. In this way, fire control of a single energy storage cabinet 1 can be accurately performed, which has the effect of saving resources. In addition, when the battery cluster 11 is overheated but not self-ignited, it can be cooled by the sprayed fire extinguishing agent, which also has the effect of improving the safety of the energy storage cabinet 1.

[0025] The box 2 is also provided with a power interface for connecting the motor pump group 4 and the controller and other electronic components to an external power source. A backup battery pack 30 is also installed inside the box 2 to ensure that the electronic components can still work normally for a period of time when the external power source is cut off. The temperature sensor 6 needs to be sealed with the corresponding wire to ensure that the fire extinguishing agent does not penetrate into it and cause damage.

[0026] The valves 7 at the air inlet 31 and the liquid outlet 32 ​​on the fire extinguisher bottle 3 can also be connected to the controller respectively. When the temperature sensor 6 detects that the temperature of the battery cluster 11 is greater than the temperature threshold of the battery cluster 11 under normal working conditions, the controller controls the two valves 7 to open; when the temperature sensor 6 detects that the temperature of the battery cluster 11 drops to the temperature threshold of the battery cluster 11 under normal working conditions, the controller controls the two valves 7 to close.

[0027] Reference Figure 4 When the motor pump group 4 is started, the two valves 7 on the fire extinguisher bottle 3 are opened, and part of the perfluorohexanone fire extinguishing agent is easily diffused along the air inlet 31 to other parts in the box body 2 to cause damage. A one-way air inlet valve 8 is connected between the air inlet 31 of the fire extinguisher bottle 3 and the corresponding valve 7, and the air inlet end of the one-way air inlet valve 8 is located on the side of the valve 7 close to the fire extinguisher bottle 3.

[0028] In the embodiment of the present application, the one-way air inlet valve 8 can ensure that air can only enter the air inlet 31 along the valve 7, and the fire extinguishing agent in the fire extinguisher bottle 3 cannot diffuse from the air inlet 31 to the outside, further improving the safety of the device.

[0029] Reference Figure 5 In order to facilitate the staff to take and place the fire extinguisher bottle 3, a bracket 9 is bolted to the bottom wall of the box body 2, and the fire extinguisher bottle 3 is horizontally placed on the bracket 9. The bracket 9 is provided with a positioning groove 91 whose arc is adapted to the outer wall of the fire extinguisher bottle 3.

[0030] Reference Figure 6 A second liquid discharge pipe 52 is provided at the liquid outlet 32 ​​in the fire extinguisher bottle 3 , one end of the second liquid discharge pipe 52 is connected to the valve 7 at the liquid outlet 32 ​​, and the other end of the second liquid discharge pipe 52 extends to the inner wall of the fire extinguisher bottle 3 .

[0031] In the embodiment of the present application, since the fire extinguisher bottle 3 is placed horizontally on the bracket 9, during the installation process, it is necessary to ensure that the end of the second liquid discharge pipe 52 away from the liquid outlet 32 ​​of the fire extinguisher bottle 3 extends downward to the inner wall of the fire extinguisher bottle 3 to improve the utilization rate of the fire extinguishing agent.

[0032] Reference Figure 7 The top of the box body 2 is provided with a material taking port, and a sealing cover 21 is bolted to the material taking port. A limiter is installed on the sealing cover 21 for limiting the axial movement of the fire extinguisher bottle 3 in the box body 2. The limiter includes two clamping blocks 10. The inner side of the sealing cover 21 is parallel to the axis of the fire extinguisher bottle 3 and is bolted to a slide rail. The two clamping blocks 10 are slidably arranged on the guide rail 102. The two ends of the fire extinguisher bottle 3 are spherical arc tops, and the two clamping blocks 10 are respectively in active contact with the arc tops at the two ends. The side of the clamping block 10 used for contacting the arc top is set as an inclined slope 101, and the two sides of the two clamping blocks 10 that are away from each other are respectively in active contact with the two inner side walls of the box body 2.

[0033] In the embodiment of the present application, the two clamping blocks 10 are respectively moved to the two ends of the guide rail 102, and then the sealing cover 21 is pressed down above the material extraction port. In the process of the clamping blocks 10 moving down and extending into the box body 2, the inclined surfaces 101 on the two clamping blocks 10 are respectively in sliding contact with the arc tops of the fire extinguisher bottles 3 on the corresponding sides, and the inclined surfaces 101 of the two clamping blocks 10 are pushed by the arc tops of the fire extinguisher bottles 3, so that the two clamping blocks 10 are moved away from each other. When the inner side of the sealing cover 21 abuts against the material extraction port, the sides of the two clamping blocks 10 that are away from each other abut against the two inner side walls of the box body 2 respectively. In this way, the stability of the fire extinguisher bottle 3 when working in the box body 2 can be further improved; during maintenance, after opening the sealing cover 21, the clamping block moves out of the box body 2 with the sealing cover 21, which can facilitate the staff to directly take and put the fire extinguisher bottle 3.

[0034] Furthermore, a liquid level sensor 20 for detecting the liquid level of the internal fire extinguishing agent is installed in the fire extinguishing bottle 3. The liquid level sensor 20 is also operatively connected to the controller, and an alarm device 201 is also operatively connected to the controller.

[0035] In the embodiment of the present application, the alarm device 201 may be a buzzer. When the liquid level sensor 20 detects that the liquid level of the fire extinguishing agent is lower than the liquid level of the normal amount required by the fire extinguishing bottle 3, the alarm device 201 sounds an alarm to remind the staff that the fire extinguishing agent needs to be replenished. The fire extinguishing bottle 3 is equipped with a filling head 33 and a drainage head 34, and the fire extinguishing agent can be poured into the fire extinguishing bottle 3 through the filling head 33. After long-term use, the fire extinguishing bottle 3 needs to be cleaned regularly, and the cleaning liquid is poured into the filling head 33. After the inside of the fire extinguishing bottle 3 is cleaned, the drainage head 34 can be opened to discharge.

[0036] The implementation principle of an electrochemical energy storage fire suppression device in an embodiment of the present application is as follows: when the temperature sensor 6 detects that the temperature of the battery cluster 11 is greater than the temperature threshold of the battery cluster 11 under normal working conditions, the two valves 7 are opened, and the controller controls the motor pump group 4 to start and deliver the fire extinguishing agent in the fire extinguishing bottle 3 to the water supply pipe 12; when the temperature sensor 6 detects that the temperature of the battery cluster 11 drops to the temperature threshold of the battery cluster 11 under normal working conditions, the controller controls the motor pump group 4 to stop running, and the two valves 7 are closed. An electrochemical energy storage fire suppression device in the present application can accurately control the fire fighting of a single energy storage cabinet 1, and has the effect of saving resources. In addition, when the battery cluster 11 is overheated but not self-ignited, it can be cooled down by the sprayed fire extinguishing agent, which also has the effect of improving the safety of the energy storage cabinet 1.

[0037] It should be understood by those skilled in the art that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An electrochemical energy storage fire suppression device, used for spraying a fire extinguishing agent on a battery cluster (11) in an energy storage cabinet (1), wherein a water supply pipe (12) is provided in the energy storage cabinet (1), and a plurality of nozzles (13) are provided on the water supply pipe (12), characterized in that: The invention comprises a box (2) for being installed on the top of an energy storage cabinet (1), wherein a fire extinguisher bottle (3) and a motor pump unit (4) are arranged in the box (2), an air inlet (31) is provided on the outer wall of the fire extinguisher bottle (3), a liquid outlet (32) is provided at one end of the fire extinguisher bottle (3), and the liquid outlet (32) is connected to the liquid inlet end of the motor pump unit (4), valves (7) are provided at the air inlet (31) and the liquid outlet (32) of the fire extinguisher bottle (3), and a first liquid discharge pipe (5) is provided at the liquid outlet end of the motor pump unit (4), and the first liquid discharge pipe (5) A connector (51) for connecting to a water supply pipe (12) in the energy storage cabinet (1) is provided at one end thereof, the connector (51) being embedded in one side of the box body (2), the motor pump group (4) being operatively connected to a temperature sensor (6), the temperature sensor (6) being arranged on a battery cluster (11) in the energy storage cabinet (1), and when the temperature sensor (6) detects that the temperature of the battery cluster (11) is greater than a temperature threshold value of the battery cluster (11) under normal working conditions, the motor pump group (4) is started and the fire extinguishing agent in the fire extinguishing bottle (3) is transported to the water supply pipe (12).

2. An electrochemical energy storage fire suppression device according to claim 1, characterized in that: A one-way air inlet valve (8) is connected between the air inlet (31) of the fire extinguisher bottle (3) and the corresponding valve (7), and the air inlet end of the one-way air inlet valve (8) is located on a side of the valve (7) close to the fire extinguisher bottle (3).

3. An electrochemical energy storage fire suppression device according to claim 2, characterized in that: A bracket (9) is provided on the inner bottom wall of the box body (2), the fire extinguisher bottle (3) is horizontally placed on the bracket (9), and a positioning groove (91) whose arc is adapted to the outer wall of the fire extinguisher bottle (3) is opened on the bracket (9).

4. The electrochemical energy storage fire suppression device according to claim 3, characterized in that: A second liquid discharge pipe (52) is provided at the liquid outlet (32) in the fire extinguisher bottle (3); one end of the second liquid discharge pipe (52) is connected to the valve (7) at the liquid outlet (32); and the other end of the second liquid discharge pipe (52) extends to the inner wall of the fire extinguisher bottle (3).

5. The electrochemical energy storage fire suppression device according to claim 3, characterized in that: The box body (2) is provided with a material taking port at the top, and a sealing cover (21) is detachably connected to the material taking port. The sealing cover (21) is provided with a limiter for limiting the axial movement of the fire extinguisher bottle (3) in the box body (2). The limiter comprises two clamping blocks (10). The two clamping blocks (10) are slidably arranged on the inner side of the sealing cover (21) along a direction parallel to the axis of the fire extinguisher bottle (3). The two ends of the fire extinguisher bottle (3) are spherical arc tops. The two clamping blocks (10) are respectively in active contact with the arc tops at the two ends. The side of the clamping block (10) in contact with the arc top is set as an inclined slope (101). The sides of the two clamping blocks (10) facing away from each other are respectively in active contact with the two inner side walls of the box body (2).

6. The electrochemical energy storage fire suppression device according to claim 3, characterized in that: The fire extinguisher bottle (3) is also provided with a liquid level sensor (20) for detecting the height of the internal fire extinguishing agent liquid level. The liquid level sensor (20) is operatively connected to an alarm device (201). When the liquid level sensor (20) detects that the liquid level of the fire extinguishing agent is lower than the liquid level of the normal amount required by the fire extinguisher bottle (3), the alarm device (201) sounds an alarm.

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