Energy storage device and energy storage power station

Abstract

The invention belongs to the field of energy storage power stations, particularly relates to an energy storage device and an energy storage power station, and provides the following scheme aiming at the problems that in the using process of an existing device, batteries have the risk of fire and explosion, the anti-explosion effect is poor, and fire aggravation is likely to be caused, the energy storage device comprises a box body and a plurality of batteries arranged in the box body, a plurality of cooling boxes are fixedly connected between the inner walls of the two sides of the box body, partition plates are fixedly connected between the adjacent cooling boxes, and first cavities for placing batteries are formed between the two sides of the partition plates and the inner walls of the box body; according to the invention, the inclined heat dissipation fins not only can play a role in heat conduction, but also can deform under the action of pressure when explosion occurs, so that the impact force is reduced, the safety of the device is improved, and meanwhile, a worker can conveniently extract and transfer the motor; the stability of the fixing frame and the battery can be kept through the cooperation of a clamping block and a clamping opening, and water leakage caused by accidental opening of the electromagnetic valve can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage power stations, and in particular to an energy storage device and an energy storage power station. Background Art

[0002] Energy storage power stations are facilities that store electrical energy and release it when needed. They are mainly used to balance electricity supply and demand, improve grid stability, and promote the consumption of renewable energy. The current mainstream technology is based on lithium-ion batteries, which have high energy density and rapid response characteristics. At the same time, energy storage power stations are a key link in building a new power system.

[0003] A search revealed an industrial energy storage device and energy storage power station disclosed in publication number CN118983605A, including an energy storage cabinet. While this device offers good shock absorption during use, it also presents the following issues: During use, the battery presents a risk of fire and explosion, and poor explosion-proofing can easily exacerbate the fire. To address these issues, this invention document proposes an energy storage device and energy storage power station. Summary of the Invention

[0004] The present invention provides an energy storage device and an energy storage power station, which solve the shortcomings of the prior art in that the battery has the risk of fire and explosion during use of the device, and the explosion-proof effect is poor, which can easily aggravate the fire.

[0005] The present invention provides the following technical solutions: An energy storage device includes: a box and a plurality of batteries disposed within the box, a plurality of cooling boxes fixedly connected between inner walls on both sides of the box, a partition fixedly connected between adjacent cooling boxes, a first cavity for accommodating the batteries formed between the inner walls of the box on both sides of the partition, and a second cavity formed between the inner walls of the box and the cooling boxes at the top and bottom; Two cooling mechanisms are provided in each of the first cavities, the cooling mechanisms comprising two sets of heat dissipation fins, the two sets of heat dissipation fins being fixed to opposite sides of the cooling box, a contact plate being fixedly connected between the opposite sides of the two sets of heat dissipation fins, the battery being located between and in contact with the two contact plates, the heat dissipation fins of the upper set being inclined for deformation energy absorption; A circulating water mechanism, the circulating water mechanism being used to supply cooling water into the box; An explosion-proof component, which is arranged at the bottom of the box for pressure relief; A fire-fighting component is arranged on the top of the box body and is used for supplying fire-fighting water into the box body.

[0006] Furthermore, the explosion-proof component includes a pressure relief port opened at the bottom of the box body, and a plurality of guide rods are fixedly connected to the bottom of the pressure relief port, and a pressure relief plate for closing the pressure relief port is slidably connected between the plurality of guide rods, and a first spring is fixedly connected between the guide rods and the pressure relief plate.

[0007] Furthermore, a support base is fixedly connected to the bottom of the box body, and pressure relief holes are provided around the support base.

[0008] Furthermore, a door is hinged on one side of the box body, and a fire alarm and a composite detector for gas detection are fixedly installed on one side of the door.

[0009] Furthermore, the fire-fighting component includes a fire-fighting pipe fixedly provided with a tee at the top of the box body, and solenoid valves are fixedly installed at both liquid inlet ends of the fire-fighting pipe. The two liquid inlet ends of the fire-fighting pipe are respectively connected to the perfluorohexanone delivery pipe and the fire-fighting water delivery pipe.

[0010] Furthermore, a plurality of through channels are provided between the surface and the bottom of the cooling box for liquid to pass through, and a plurality of through holes are provided on the surface of the contact plate for use in conjunction with the channels.

[0011] Furthermore, the water outlet end of the fire-fighting pipe is fixedly connected to a transverse pipe, both ends of the transverse pipe are bonded with sealing rings, both ends of the transverse pipe are sealed with paraffin blocks, and a steel mesh is arranged inside the paraffin block.

[0012] Furthermore, the circulating water mechanism includes a water distribution box fixed on one side of the box body and two vertical pipes respectively arranged on both sides of the box body. A connected water inlet pipe is fixedly installed on one side of the water distribution box for connecting to the water inlet pipeline of the cooling water. A connecting pipe is fixedly connected between the water distribution box and the cooling box. The two vertical pipes are connected to both sides of the cooling box through pipes. A return pipe is fixedly connected between the two vertical pipes for connecting to the return pipeline of the cooling water.

[0013] Furthermore, a fixing assembly for fixing the battery is provided between the battery and the first cavity, and the fixing assembly includes two guide rails, which are respectively fixed to the inner wall of the box and one side of the partition, and a U-shaped fixing frame is slidably connected in the guide rail, and the fixing frame is fixed to the battery. The bottom of the fixing frame is slidably connected to a penetrating U-shaped pull frame, and a second spring is fixedly connected between the pull frame and the fixing frame. Both ends of the pull frame are fixedly connected to a card block, and the bottom of the card block is provided with an inclined surface. The surface of the guide rail is provided with a bayonet, and the bayonet is used in conjunction with the card block.

[0014] The present invention also provides an energy storage power station, which includes a plurality of energy storage devices.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.

[0016] In the present invention, by installing a pressure relief plate and a support seat at the bottom of the box, the pressure can be relieved by the movement of the pressure relief plate during an explosion to prevent the box from exploding. After the pressure is relieved, the pressure relief plate is reset to isolate the air and prevent the fire from spreading further.

[0017] In the present invention, the inclined heat dissipation fins provided in the first cavity can not only play a role in heat conduction, but also can deform under the action of pressure in the event of an explosion, thereby reducing the impact force and improving the safety of the device. In the present invention, by installing a fixing bracket on the battery, the fixing bracket is used in conjunction with the guide rail, thereby making it convenient for workers to extract and transfer the motor, and the fixing bracket and the battery can be kept stable by utilizing the cooperation of the clamping block and the bayonet. In the present invention, by installing a horizontal pipe and a paraffin block at the bottom of the fire pipe, the horizontal pipe can be sealed by the paraffin block, thereby preventing water leakage caused by accidental opening of the solenoid valve. At the same time, when a fire occurs, the paraffin block can melt at a high temperature, which is convenient for use. In the present invention, the inclined heat dissipation fins can not only play the role of heat conduction, but also can deform under the action of pressure in the event of an explosion, reduce the impact force, and improve the safety of the device. At the same time, it can facilitate the staff to extract and transfer the motor, and can also use the cooperation of the card block and the card slot to maintain the stability of the fixing frame and the battery, and can avoid water leakage caused by accidental opening of the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a three-dimensional structure from a first viewing angle of an energy storage device and an energy storage power station provided by an embodiment of the present invention; Figure 2 A schematic diagram of a three-dimensional structure from a second perspective of an energy storage device and an energy storage power station provided by an embodiment of the present invention; Figure 3 A schematic cross-sectional view of an energy storage device and an energy storage power station provided by an embodiment of the present invention; Figure 4 A schematic diagram of a partial cross-sectional structure of an energy storage device and an energy storage power station provided by an embodiment of the present invention.

[0019] Figure 5 An energy storage device and energy storage power station provided by an embodiment of the present invention Figure 4 Schematic diagram of the enlarged structure of point A.

[0020] Figure 6 This is a schematic diagram of a cross-sectional structure of an energy storage device and an energy storage power station provided by an embodiment of the present invention.

[0021] Reference numerals: 1. Box body; 2. Box door; 3. Support seat; 4. Pressure relief hole; 5. Cooling box; 6. Partition; 7. Vertical pipe; 8. Return pipe; 9. Fire pipe; 10. Solenoid valve; 11. Water distribution box; 12. Water inlet pipe; 13. Connecting pipe; 15. Guide rail; 16. Battery; 17. Guide rod; 18. First spring; 19. Pressure relief plate; 20. Heat sink; 21. Contact plate; 22. Channel; 23. Perforation; 24. Second spring; 25. Block; 26. Bayonet; 27. Horizontal pipe; 28. Paraffin block; 29. ​​Sealing ring; 30. Wire mesh; 31. Pull frame; 32. Fixed frame. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described below with reference to the accompanying drawings.

[0023] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection", and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "communication" can be a direct connection or an indirect connection through an intermediate medium. Here, "fixed" means that the two are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, 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 cannot be understood as a limitation on the embodiments of the present invention.

[0024] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the present invention. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0025] Example 1: Reference Figures 1-6, an energy storage device, comprising: a box body 1 and a plurality of batteries 16 disposed in the box body 1, a plurality of cooling boxes 5 fixedly connected between the inner walls of both sides of the box body 1, a partition 6 fixedly connected between adjacent cooling boxes 5, a first cavity for placing the batteries 16 is formed between both sides of the partition 6 and the inner wall of the box body 1, and a second cavity is formed between the cooling boxes 5 located at the top and bottom and the inner wall of the box body 1; Two cooling mechanisms are provided in the first cavity, and the cooling mechanism includes two groups of heat dissipation fins 20. The two groups of heat dissipation fins 20 are respectively fixed on opposite sides of the cooling box 5. A contact plate 21 is fixedly connected between the opposite sides of the two groups of heat dissipation fins 20. The battery 16 is located between the two contact plates 21 and contacts them. After the battery 16 enters the first cavity, the top and bottom contact the contact plates 21. When the cooling water passes through, the heat on the battery 16 is taken away, thereby achieving the effect of heat dissipation. The group of heat dissipation fins 20 located on the top is tilted for deformation energy absorption. In the event of an explosion, the heat dissipation fins 20 arranged at the top tilt can deform under pressure to reduce the impact force. Circulating water mechanism, the circulating water mechanism is used to supply cooling water into the box body 1; An explosion-proof component is provided at the bottom of the box 1 for pressure relief; The fire-fighting component is arranged on the top of the box body 1 and is used to supply fire-fighting water into the box body 1.

[0026] Example 2: Reference Figures 1-6 An improved energy storage device based on the first embodiment includes an explosion-proof component including a pressure relief port at the bottom of the box body 1. A plurality of guide rods 17 are fixedly connected to the bottom of the pressure relief port. A pressure relief plate 19 for closing the pressure relief port is slidably connected between the plurality of guide rods 17. A first spring 18 is fixedly connected between the guide rods 17 and the pressure relief plate 19. When an explosion occurs, excessive pressure pushes open the pressure relief plate 19, thereby discharging the pressure and preventing the box body 1 from exploding due to excessive pressure. After the pressure is released, the pressure relief plate 19 is reset under the action of the first spring 18, thereby isolating the air and preventing the fire from spreading further.

[0027] In the present invention, a support base 3 is fixedly connected to the bottom of the box body 1 , and pressure relief holes 4 are provided around the support base 3 for discharging pressure.

[0028] In particular, a door 2 is hinged on one side of the box body 1, and a fire alarm and a composite detector for gas detection are fixedly installed on one side of the door 2. The composite detector is an electrochemical gas sensor for detecting hydrogen and carbon dioxide. It is an existing technology and will not be described in detail here.

[0029] It should be noted that the fire-fighting component includes a fire-fighting pipe 9 fixedly provided with a tee at the top of the box body 1. The two liquid inlet ends of the fire-fighting pipe 9 are fixedly installed with solenoid valves 10. The two liquid inlet ends of the fire-fighting pipe 9 are respectively connected to the perfluorohexanone delivery pipe and the fire-fighting water delivery pipe. When extinguishing a fire, the perfluorohexanone is discharged first, which can quickly cool down and extinguish the fire. When the fire is difficult to control, fire-fighting water can be used in combination to reduce the cost of fire-fighting. At the same time, it can cool down the inside of the box body 1 to prevent the spread of fire.

[0030] In the present invention, a plurality of through channels 22 are provided between the surface and the bottom of the cooling box 5 for liquid to pass through, and a plurality of through holes 23 are provided on the surface of the contact plate 21 for use in conjunction with the channels 22. The through holes 23 and the channels 22 are used for the passage of the fire extinguishing medium.

[0031] In particular, the water outlet end of the fire hose 9 is fixedly connected to a transverse pipe 27, both ends of the transverse pipe 27 are bonded with sealing rings 29, and both ends of the transverse pipe 27 are sealed with paraffin blocks 28, and a steel mesh 30 is arranged inside the paraffin block 28. The transverse pipe 27 can be sealed by the paraffin block 28 to avoid water leakage caused by accidental opening of the solenoid valve 10. At the same time, when a fire occurs, the paraffin block 28 can melt at a high temperature, which is convenient for use.

[0032] It should be noted that the circulating water mechanism includes a water diversion box 11 fixed on one side of the box body 1 and two vertical pipes 7 respectively arranged on both sides of the box body 1. A connected water inlet pipe 12 is fixedly installed on one side of the water diversion box 11 for connecting the water inlet pipeline of the cooling water. A connecting pipe 13 is fixedly connected between the water diversion box 11 and the cooling box 5. The two vertical pipes 7 are connected to both sides of the cooling box 5 through pipes. A return pipe 8 is fixedly connected between the two vertical pipes 7 for connecting the return pipeline of the cooling water. The cooling water enters the cooling box 5 after passing through the water diversion box 11 and the connecting pipe 13, and is then discharged through the vertical pipe 7, thereby taking away the heat from the battery 16, thereby achieving the effect of heat dissipation.

[0033] The two guide rails 15 are respectively fixed to the inner wall of the box body 1 and one side of the partition 6. A U-shaped fixing frame 32 is slidably connected in the guide rail 15, and the fixing frame 32 is fixed to the battery 16. The bottom of the fixing frame 32 is slidably connected to a penetrating U-shaped pull frame 31. A second spring 24 is fixedly connected between the pull frame 31 and the fixing frame 32. Both ends of the pull frame 31 are fixedly connected to a card block 25. The bottom of the card block 25 is provided with an inclined surface. The surface of the guide rail 15 is provided with a bayonet 26, and the bayonet 26 is used in conjunction with the card block 25 respectively. After the fixing frame 32 is inserted into place, the card block 25 is locked in the bayonet 26, thereby maintaining the stability of the fixing frame 32 and the battery 16. When removing the battery 16, pulling the pull frame 31 upwards can disengage the card block 25 from the bayonet 26, thereby facilitating the operation of the working staff.

[0034] The present invention also provides an energy storage power station, which includes a plurality of energy storage devices.

[0035] However, as is well known to those skilled in the art, the working principles and wiring methods of the battery 16, solenoid valve 10, fire alarm and composite detector are commonplace and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0036] The working principle and use process of this technical solution are as follows: the fixing bracket 32 ​​installed on the battery 16 can facilitate the extraction and transfer of the motor 16. When installing, the fixing bracket 32 ​​on the battery 16 can be inserted into the guide rail 15. After the fixing bracket 32 ​​is inserted into place, the clamping block 25 is clamped into the clamping hole 26, thereby maintaining the stability of the fixing bracket 32 ​​and the battery 16. When removing the battery 16, the pulling bracket 31 is pulled upward to disengage the clamping block 25 from the clamping hole 26, thereby facilitating the operation of the working staff. After the battery 16 enters the first cavity, the top and bottom contact the contact plate 21. The cooling water passes through the water separation box 11 and the connecting pipe 13 and enters the cooling box 5. It is then discharged through the vertical pipe 7, thereby taking away the heat from the battery 16, thereby achieving a heat dissipation effect. At the same time, the internal heat is dissipated, preventing dust and dirt from entering the box 1, thereby increasing the service life of the device. When the battery 16 catches fire, the high temperature will melt the sealed paraffin block 28, and then the perfluorohexanone will enter the box body 1 and flow to the bottom of the box body 1 along the channel 22 and the perforation 23, and then push the pressure relief plate 19 open and discharge it to prevent air from entering. After the perfluorohexanone is discharged, the fire water enters the box body 1, which can control the fire and prevent the fire from spreading. At the same time, the fire water is cooled by the cooling water, which can also reduce the risk of explosion of the battery 16 shell. If an explosion occurs, the heat dissipation fins 20 arranged at an angle on the top can be deformed under the action of pressure to reduce the impact force. At the same time, the pressure passes through the channel 22 and the perforation 23 and pushes the pressure relief plate 19 open, and then is discharged to avoid the internal pressure of the box body 1 from being too high and exploding.

[0037] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. The embodiments of the present invention and the features therein can be combined with each other unless there is a conflict. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. An energy storage device, characterized in that: include: A box body (1) and a plurality of batteries (16) arranged in the box body (1), a plurality of cooling boxes (5) are fixedly connected between the inner walls of both sides of the box body (1), a partition (6) is fixedly connected between adjacent cooling boxes (5), a first cavity for placing the batteries (16) is formed between both sides of the partition (6) and the inner wall of the box body (1), and a second cavity is formed between the cooling boxes (5) located at the top and bottom and the inner wall of the box body (1); Two cooling mechanisms are provided in each of the first cavities, the cooling mechanisms comprising two groups of heat dissipation fins (20), the two groups of heat dissipation fins (20) being fixed on opposite sides of the cooling box (5), a contact plate (21) being fixedly connected between the opposite sides of the two groups of heat dissipation fins (20), the battery (16) being located between the two contact plates (21) and in contact therewith, and the group of heat dissipation fins (20) located above being inclined for deformation energy absorption; A circulating water mechanism, the circulating water mechanism being used to supply cooling water into the box (1); An explosion-proof component, which is arranged at the bottom of the box (1) for pressure relief; A fire-fighting assembly is provided on the top of the box (1) and is used to supply fire-fighting water into the box (1).

2. An energy storage device according to claim 1, characterized in that: The explosion-proof component includes a pressure relief port opened at the bottom of the box body (1), a plurality of guide rods (17) are fixedly connected to the bottom of the pressure relief port, a pressure relief plate (19) for closing the pressure relief port is slidably connected between the plurality of guide rods (17), and a first spring (18) is fixedly connected between the guide rods (17) and the pressure relief plate (19).

3. An energy storage device according to claim 1, characterized in that: The bottom of the box body (1) is fixedly connected to a support base (3), and pressure relief holes (4) are provided on all four sides of the support base (3).

4. The energy storage device according to claim 1, characterized in that: A box door (2) is hingedly connected to one side of the box body (1), and a fire alarm and a composite detector for gas detection are fixedly installed on one side of the box door (2).

5. The energy storage device according to claim 1, characterized in that: The fire-fighting assembly comprises a fire-fighting pipe (9) fixedly provided with a three-way connection and passing through the top of the box (1); solenoid valves (10) are fixedly installed at both liquid inlet ends of the fire-fighting pipe (9); and the two liquid inlet ends of the fire-fighting pipe (9) are respectively connected to a perfluorohexanone delivery pipe and a fire-fighting water delivery pipe.

6. An energy storage device according to claim 5, characterized in that: A plurality of through-going channels (22) are provided between the surface and the bottom of the cooling box (5) for liquid to pass through, and a plurality of through-going holes (23) are provided on the surface of the contact plate (21) for use in conjunction with the channels (22).

7. The energy storage device according to claim 5, characterized in that: The water outlet end of the fire-fighting pipe (9) is fixedly connected to a transverse pipe (27), both ends of the transverse pipe (27) are bonded with sealing rings (29), and both ends of the transverse pipe (27) are sealed with paraffin blocks (28), and a steel mesh (30) is provided in the paraffin blocks (28).

8. The energy storage device according to claim 1, characterized in that: The circulating water mechanism comprises a water distribution box (11) fixed on one side of the box body (1) and two vertical pipes (7) respectively arranged on both sides of the box body (1); a connected water inlet pipe (12) is fixedly installed on one side of the water distribution box (11) for connecting to the water inlet pipeline of the cooling water; a connecting pipe (13) is fixedly connected between the water distribution box (11) and the cooling box (5); the two vertical pipes (7) are connected to both sides of the cooling box (5) through pipes; a return pipe (8) is fixedly connected between the two vertical pipes (7) for connecting to the return pipeline of the cooling water.

9. The energy storage device according to claim 1, characterized in that: A fixing assembly for fixing the battery (16) is provided between the battery (16) and the first cavity, and the fixing assembly includes two guide rails (15). The two guide rails (15) are fixed to the inner wall of the box body (1) and one side of the partition (6), respectively. A U-shaped fixing frame (32) is slidably connected in the guide rail (15), and the fixing frame (32) is fixed to the battery (16). A U-shaped pull frame (31) is slidably connected to the bottom of the fixing frame (32). A second spring (24) is fixedly connected between the pull frame (31) and the fixing frame (32). Both ends of the pull frame (31) are fixedly connected to a card block (25), and the bottom of the card block (25) is provided with an inclined surface. The surface of the guide rail (15) is provided with a card slot (26), and the card slot (26) is used in conjunction with the card block (25).

10. Energy storage power station, characterized in that: The invention comprises a plurality of energy storage devices according to any one of claims 1 to 9.

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