Temperature adjusting and fire extinguishing mechanism and energy storage device

Abstract

According to the temperature-adjusting fire extinguishing mechanism and the energy storage device, the temperature-adjusting fire extinguishing device comprises a first pipeline, a second pipeline and a third pipeline, the diameter of the second pipeline is smaller than that of the first pipeline, the second pipeline is arranged in the first pipeline, and a plurality of open holes are formed in the bottom of the second pipeline at intervals; the first end of the third pipeline communicates with the second pipeline through the open hole, the second end of the third pipeline penetrates through the first pipeline, a fire extinguishing material is stored in the second pipeline, and a phase change material is stored in the space between the outer wall of the second pipeline and the inner wall of the first pipeline. When the temperature of the energy storage device rises, the phase change material can rapidly absorb heat, when the temperature of the energy storage device drops, the phase change material rapidly releases heat, the temperature is kept stable, the energy storage device is protected against the influence of the extreme temperature, and the fire extinguishing material is stored in the second pipeline. Fire extinguishing materials can be quickly released to a fire scene through the third pipeline, and potential safety hazards are reduced.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange device technology, and in particular to a temperature-regulating fire extinguishing mechanism and an energy storage device. Background Technology

[0002] In recent years, electrochemical energy storage devices have occupied an important position in the energy storage market due to their modular design, ease of expansion, and convenient installation and maintenance.

[0003] Ideally, electrochemical energy storage devices should operate within a temperature range of 25°C to 35°C. However, existing electrochemical energy storage devices generate heat during operation, causing their operating temperature to rise. When the temperature reaches a certain level, thermal runaway may occur, leading to fires and posing significant safety hazards. Therefore, improvements to existing technologies are necessary. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a temperature-regulating fire extinguishing mechanism and an energy storage device, which can stabilize the temperature of the electrochemical energy storage device within an ideal range and reduce safety hazards.

[0005] A temperature-regulating fire extinguishing mechanism according to a first aspect of the present invention is used in an energy storage device. It includes a first pipe, a second pipe, and a third pipe. The diameter of the second pipe is smaller than that of the first pipe. The second pipe is disposed inside the first pipe. A plurality of openings are spaced apart on the bottom of the second pipe. The first end of the third pipe is connected to the second pipe through the openings. The second end of the third pipe penetrates the first pipe. Fire extinguishing material is stored inside the second pipe. A phase change material is stored in the space between the outer wall of the second pipe and the inner wall of the first pipe.

[0006] According to a first aspect of the present invention, the second end of the third pipe is further connected to a trumpet-shaped nozzle, which faces the energy storage device.

[0007] According to a first aspect of the present invention, the temperature-regulating fire extinguishing mechanism further includes a fire extinguisher and a fourth channel, wherein the first end of the fourth channel is connected to the second pipe, and the second end of the fourth channel is connected to the fire extinguisher.

[0008] According to a first aspect of the present invention, a smoke detector is also connected to the third pipe, and the smoke detector is used to monitor the fire situation of the energy storage device in real time.

[0009] According to a first aspect of the present invention, the temperature-regulating fire extinguishing mechanism further includes a plurality of valves, each valve corresponding to a third pipeline, for controlling the opening and closing of the third pipeline.

[0010] According to a first aspect of the present invention, the fire extinguisher is a perfluorohexanone fire extinguisher or a carbon dioxide fire extinguisher, and the phase change material is sodium sulfate decahydrate.

[0011] According to a second aspect of the present invention, an energy storage device includes a battery unit, a liquid cooling plate, a water tank, a water pump, an inlet pipe, and a temperature-regulating fire extinguishing mechanism. The liquid cooling plate supports the battery unit, the water pump is located inside the water tank, the inlet pipe connects the water pump and the inlet of the liquid cooling plate, and the outer wall of the first pipe of the temperature-regulating fire extinguishing mechanism is in close contact with the liquid cooling plate.

[0012] According to a second aspect of the present invention, the energy storage device further includes a battery rack, bolts, and a plurality of liquid cooling plates. The battery rack is provided with a plurality of circular holes spaced apart in the height direction. The liquid cooling plates are provided with threaded holes. The bolts pass through any of the circular holes and are threadedly connected to the threaded holes to lock the battery rack and the liquid cooling plates. A storage space is formed between adjacent liquid cooling plates, and the battery unit is disposed in the storage space.

[0013] According to a second aspect of the present invention, the energy storage device further includes a duct fan, a chiller, and a return pipe. The duct fan is detachably connected to the inner wall of the energy storage device. The return pipe connects the liquid outlet of the liquid-cooled plate and the liquid inlet of the chiller. The chiller cools the water, and the liquid outlet of the chiller is connected to the water storage tank.

[0014] According to a second aspect of the present invention, the energy storage device further includes a power distribution cabinet, and a plurality of the battery units are electrically connected to the power distribution cabinet.

[0015] A temperature-regulating fire extinguishing mechanism and energy storage device according to an embodiment of the present utility model have at least the following beneficial effects:

[0016] This invention designs a temperature-regulating fire extinguishing mechanism and an energy storage device. The temperature-regulating fire extinguishing device includes a first pipe, a second pipe, and a third pipe. The diameter of the second pipe is smaller than that of the first pipe, and the second pipe is located inside the first pipe. Several openings are spaced apart on the bottom of the second pipe. The first end of the third pipe connects to the second pipe through the openings, and the second end of the third pipe penetrates the first pipe. Fire extinguishing material is stored inside the second pipe, and a phase change material is stored in the space between the outer wall of the second pipe and the inner wall of the first pipe. When the temperature of the energy storage device rises, the phase change material can quickly absorb heat; when the temperature of the energy storage device drops, the phase change material can quickly release heat, ensuring that the operating temperature of the energy storage device remains stable. The fire extinguishing material is stored in the second pipe. When a fire occurs in the energy storage device or fire extinguishing is required, the fire extinguishing material can be quickly released to the fire scene through the third pipe, reducing safety hazards.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a schematic diagram of an energy storage device according to a second aspect embodiment of the present invention.

[0020] Reference numerals in the attached diagram: 1. First pipe; 2. Second pipe; 3. Third pipe; 4. Nozzle; 5. Fourth channel; 6. Fire extinguisher; 7. Smoke detector; 8. Battery rack; 9. Liquid cooling plate; 10. Water tank; 11. Liquid inlet pipe; 12. Battery unit; 13. Air duct unit; 14. Distribution cabinet; 15. Valve; 16. Fire extinguishing material; 17. Phase change material. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of these terms in this utility model based on the specific content of the technical solution. In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. In the description of this specification, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] Reference Figure 1 The first aspect of this utility model provides a temperature-regulating fire extinguishing mechanism for use in an energy storage device. It is characterized by comprising a first pipe 1, a second pipe 2, and a third pipe 3. The diameter of the second pipe 2 is smaller than the diameter of the first pipe 1. The second pipe 2 is disposed within the first pipe 1. A plurality of openings are spaced apart on the bottom of the second pipe 2. The first end of the third pipe 3 is connected to the second pipe 2 through the openings. The second end of the third pipe 3 penetrates the first pipe 1. Fire extinguishing material 16 is stored within the second pipe 2. A phase change material 17 is stored in the space between the outer wall of the second pipe 2 and the inner wall of the first pipe 1.

[0026] It should be noted that when the temperature of the energy storage device rises, the phase change material 17 can quickly absorb heat, and the temperature of the energy storage device begins to drop. When the temperature of the energy storage device drops, the phase change material 17 quickly releases heat, and the temperature of the energy storage device begins to rise, ensuring that the operating temperature of the energy storage device is maintained at the ideal temperature. The fire extinguishing material 16 is stored in the second pipe 2. When the energy storage device catches fire or needs to be extinguished, the fire extinguishing material 16 can be quickly released to the fire scene through the third pipe 3 to reduce safety hazards.

[0027] According to a first aspect of the present invention, the second end of the third pipe 3 is further connected to a trumpet-shaped nozzle 4, which faces the energy storage device. This design, with the trumpet-shaped nozzle 4 connected to the second end of the third pipe 3, allows the extinguishing material 16 to be sprayed more evenly onto the energy storage device, thus improving the extinguishing effect.

[0028] According to a first aspect of the present invention, the temperature-regulating fire extinguishing mechanism further includes a fire extinguisher 6 and a fourth channel 5. The first end of the fourth channel 5 is connected to the second pipe 2, and the second end of the fourth channel 5 is connected to the fire extinguisher 6. As a channel connecting the fire extinguisher 6 and the second pipe 2, the function of the fourth channel 5 is to quickly deliver the extinguishing agent in the fire extinguisher 6 to the second pipe 2 when needed, and then release it to the energy storage device through the third pipe 3.

[0029] According to a first aspect of this invention, a smoke detector 7 is also connected to the third pipe 3. The smoke detector 7 is used to monitor the fire situation of the energy storage device in real time. By monitoring the smoke concentration around the energy storage device in real time, the smoke detector 7 will issue an alarm signal once it detects that the smoke concentration exceeds a preset threshold, reminding staff to extinguish the fire in time, thus achieving a rapid response in fire fighting.

[0030] According to a first aspect of the present invention, the temperature-regulating fire extinguishing mechanism further includes a plurality of valves 15, each corresponding to a third pipeline 3, for controlling the opening and closing of the third pipeline 3. The valves 15 are used to open or close the third pipeline 3 when needed, thereby controlling the release of the fire extinguishing agent.

[0031] According to a first aspect of this invention, the fire extinguisher 6 is a perfluorohexanone fire extinguisher or a carbon dioxide fire extinguisher, and the phase change material 17 is sodium sulfate decahydrate. Perfluorohexanone fire extinguishers are environmentally friendly extinguishing agents with advantages such as cleanliness, high efficiency, and no residue. They can quickly extinguish fires without damaging equipment, making them particularly suitable for extinguishing fires on electronic equipment or precision instruments. Carbon dioxide fire extinguishers release high-pressure carbon dioxide gas to reduce the oxygen concentration around the fire source, thereby achieving the purpose of extinguishing the fire. They are also suitable for extinguishing fires on electronic equipment or precision instruments. Sodium sulfate decahydrate is a common inorganic salt phase change material 17 with a fixed melting and freezing point. During the endothermic process, it changes from a solid to a liquid state, absorbing a large amount of heat; during the exothermic process, it changes from a liquid to a solid state, releasing heat.

[0032] A second aspect of this utility model provides an energy storage device comprising a battery unit 12, a liquid cooling plate 9, a water storage tank 10, a water pump, an inlet pipe 11, and a temperature-regulating fire extinguishing mechanism. The liquid cooling plate 9 supports the battery unit 12. The water pump is located inside the water storage tank 10. The inlet pipe 11 connects the water pump and the inlet of the liquid cooling plate 9. The outer wall of the first pipe 1 of the temperature-regulating fire extinguishing mechanism is in close contact with the liquid cooling plate 9.

[0033] When the water pump starts, it begins to draw water from the water storage tank 10. Under the action of the pump, the cooling water is transported through the inlet pipe 11 to the inlet of the liquid cooling plate 9. After entering the liquid cooling plate 9, the cooling water begins to circulate and exchange heat with the battery cell 12. During the heat exchange process, the cooling water absorbs the heat generated by the battery cell 12, thereby reducing the temperature of the battery cell 12. The liquid cooling plate 9 is in close contact with the first pipe 1 containing the phase change material 17. The heat on the liquid cooling plate 9 can be efficiently transferred to the phase change material 17, thus lowering the temperature of the cooling water. The phase change material 17 can quickly absorb the heat from the liquid cooling plate 9 and store it as latent heat. When the operating temperature of the energy storage device decreases, the phase change material 17 can revert from a liquid state to a solid state and release the stored heat, thereby increasing the operating temperature of the energy storage device and ensuring that the operating temperature of the energy storage device is maintained at the ideal temperature.

[0034] According to a second aspect of the present invention, the energy storage device further includes a battery rack 8, bolts, and several liquid cooling plates 9. The battery rack 8 is provided with several circular holes spaced apart in the height direction. The liquid cooling plates 9 are provided with threaded holes. The bolts pass through any of the circular holes and are threadedly connected to the threaded holes to lock the battery rack 8 and the liquid cooling plates 9. A storage space is formed between adjacent liquid cooling plates 9, and the battery unit 12 is disposed in the storage space.

[0035] The use of bolts makes the connection between the battery rack 8 and the liquid cooling plate 9 more secure and easier to disassemble and reinstall. The storage space is formed by the gap between adjacent liquid cooling plates 9, and its size can be adjusted according to the size of the battery cell 12.

[0036] According to a second aspect of the present invention, the energy storage device further includes a duct fan 13, a chiller, and a return pipe. The duct fan 13 is detachably connected to the inner wall of the energy storage device. The return pipe is connected to the outlet of the liquid cooling plate 9 and the inlet of the chiller. The chiller cools the water, and the outlet of the chiller is connected to the water storage tank 10.

[0037] The ducted air conditioner 13 is mainly used to regulate the temperature and humidity inside the energy storage device, ensuring that the battery unit 12 operates under suitable environmental conditions. The coolant, having completed heat exchange, flows out from the outlet of the liquid cooling plate 9 and enters the chiller through the return pipe. The chiller cools the hot coolant, reducing its temperature to a suitable range. The cooled coolant then flows out from the outlet of the chiller and is transported back to the water storage tank 10 through pipelines for reuse by the liquid cooling plate 9, reducing water waste.

[0038] According to a second aspect of this utility model, the energy storage device further includes a power distribution cabinet 14, and a plurality of battery units 12 are electrically connected to the power distribution cabinet 14. The power distribution cabinet 14 is the core equipment in the energy storage device responsible for power distribution, control, and protection. It realizes functions such as charging, discharging, and fault detection of the battery units 12 by electrically connecting to the plurality of battery units 12.

[0039] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A temperature-regulating fire extinguishing mechanism for use in an energy storage device, characterized in that, include: First pipeline; A second pipe, the diameter of which is smaller than that of the first pipe, is located inside the first pipe; The third pipe has several openings spaced apart on the bottom of the second pipe. The first end of the third pipe is connected to the second pipe through the openings, and the second end of the third pipe passes through the first pipe. The second pipe contains fire extinguishing material, and the space between the outer wall of the second pipe and the inner wall of the first pipe contains phase change material.

2. The temperature-regulating fire extinguishing mechanism according to claim 1, characterized in that, The second end of the third pipe is also connected to a trumpet-shaped nozzle, which faces the energy storage device.

3. The temperature-regulating fire extinguishing mechanism according to claim 1, characterized in that, It also includes a fire extinguisher and a fourth channel, the first end of which is connected to the second pipe, and the second end of which is connected to the fire extinguisher.

4. The temperature-regulating fire extinguishing mechanism according to claim 1, characterized in that, A smoke detector is also connected to the third pipe, which is used to monitor the fire situation of the energy storage device in real time.

5. The temperature-regulating fire extinguishing mechanism according to claim 1, characterized in that, It also includes several valves, each corresponding to a third pipeline, used to control the opening and closing of the third pipeline.

6. The temperature-regulating fire extinguishing mechanism according to claim 3, characterized in that, The fire extinguisher is a perfluorohexanone fire extinguisher or a carbon dioxide fire extinguisher, and the phase change material is sodium sulfate decahydrate.

7. An energy storage device, characterized in that, The device includes a battery unit, a liquid cooling plate, a water storage tank, a water pump, an inlet pipe, and a temperature-regulating fire extinguishing mechanism as described in any one of claims 1-6. The liquid cooling plate is used to support the battery unit, the water pump is located inside the water storage tank, the inlet pipe connects the water pump and the inlet of the liquid cooling plate, and the outer wall of the first pipe of the temperature-regulating fire extinguishing mechanism is in close contact with the liquid cooling plate.

8. The energy storage device according to claim 7, characterized in that: It also includes a battery rack, bolts, and several liquid cooling plates. The battery rack has several circular holes spaced apart in the height direction. The liquid cooling plates have threaded holes. The bolts pass through any of the circular holes and are threaded into the threaded holes to lock the battery rack and the liquid cooling plates. A storage space is formed between adjacent liquid cooling plates, and the battery unit is disposed in the storage space.

9. The energy storage device according to claim 7, characterized in that: It also includes a ducted air conditioner, a chiller, and a return pipe. The ducted air conditioner is detachably connected to the inner wall of the energy storage device. The return pipe connects the liquid outlet of the liquid cooling plate and the liquid inlet of the chiller. The chiller cools the water, and the liquid outlet of the chiller is connected to the water storage tank.

10. The energy storage device according to claim 7, characterized in that: It also includes a power distribution cabinet, and several of the battery units are electrically connected to the power distribution cabinet.

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