Cooling device for fire barrier of semi-solid energy storage system

Abstract

The utility model discloses a cooling device of fireproof partition of semi-solid energy storage system, specifically relates to fireproof partition technical field, including the storage frame, the front and back end of storage frame all is seted up and is connected with the outside interface, and the inboard of storage frame is provided with the moving station, and the upper end of moving station is fixedly connected with the installation platform, and the inboard of installation platform is rotatably connected with the rotating platform for circuit connection, and the outside of rotating platform is threadedly connected with the material frame for being installed in semi-solid energy storage unit, and the corrugated pipe is installed between material frame and storage frame, and the inboard of material frame is seted up and is connected with the communicating hole for fluid circulation. The utility model discloses through installation platform, corrugated pipe and pole line pipe and enter circuit into semi-solid energy storage unit, and utilize rotating platform and material frame and install semi-solid energy storage unit, and move the moving station with semi-solid energy storage unit and installation platform, and through the docking connecting block of rotating block and screw rod, to locate moving station and storage frame, and moving station and fireproof partition cooperate storage frame and constitute multiple independent cabin, and it is convenient to prevent fire isolation.

Description

Technical Field

[0001] This utility model relates to the field of fireproof partition technology, and more specifically, to a cooling device for fireproof partitions in semi-solid energy storage systems. Background Technology

[0002] Semi-solid-state energy storage systems are a new type of energy storage technology that combines the advantages of traditional liquid electrolytes and solid electrolytes. By using a solid-liquid hybrid electrolyte, semi-solid-state energy storage systems improve battery safety and cycle life while maintaining high energy density and good ionic conductivity. Semi-solid-state energy storage systems are particularly suitable for large-scale energy storage applications that require high safety and long life, such as grid-side energy storage and data center energy storage. However, semi-solid-state batteries may still experience thermal runaway and release flammable gases and a large amount of heat. Fireproof barriers can prevent high heat and explosion from affecting each other, and cooling devices can be installed to improve the safety and lifespan of semi-solid-state energy storage systems.

[0003] Most existing semi-solid energy storage systems use a single gas circulation structure in conjunction with the fireproof partition for cooling. This results in a strong overall integration. However, during use, the connection between the semi-solid energy storage system and the fireproof partition is relatively close, which can easily reduce the independence of the semi-solid energy storage system. Furthermore, during cooling, most systems rely solely on a single gas circulation structure for cooling, and the temperatures of semi-solid energy storage systems in different areas often vary. The system also has a weak ability to adjust for excessively high temperatures in individual semi-solid energy storage systems.

[0004] In summary, in order to address the issue of the weak cooling effect of fireproof partition cooling devices on individual semi-solid energy storage systems during their use, it is necessary to improve the independence of the semi-solid energy storage system support structure and enable the fireproof partition cooling devices to provide cooling for individual semi-solid energy storage systems. Utility Model Content

[0005] The cooling device for the fireproof partition of the semi-solid energy storage system provided by this utility model aims to solve the problem that: when using the existing cooling devices for the fireproof partition of the semi-solid energy storage system, the connection between the semi-solid energy storage system and the fireproof partition is too close, and the temperature of the semi-solid energy storage system in different areas often varies, resulting in a decrease in the overall cooling effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cooling device for a fireproof partition of a semi-solid energy storage system, including a storage rack. The storage rack has external interfaces at both its front and rear ends. A movable platform is provided on the inner side of the storage rack. An installation platform is fixedly connected to the upper end of the movable platform. A rotating platform for circuit connection is rotatably connected to the inner side of the installation platform. A material rack for mounting a semi-solid energy storage unit is threadedly connected to the outer side of the rotating platform. A corrugated pipe is installed between the material rack and the storage rack. A connecting hole for fluid flow is provided on the inner side of the material rack. A cable conduit is provided on the outer side of the rotating platform. A cooling structure is provided on the outer side of the material rack.

[0007] In a preferred embodiment, the cooling structure includes a sliding frame slidably connected to the outside of the material rack, a fixed plate disposed on the upper end of the sliding frame, the fixed plate being bolted to the sliding frame, and a storage tank being threadedly connected to the outside of the sliding frame.

[0008] In a preferred embodiment, rotating blocks are rotatably connected to both sides of the storage rack, a threaded rod is fixedly connected to the upper end of the rotating block, and a connection interface is provided at the lower end of the storage rack. Support tubes are provided at both the front and rear ends of the connection interface, and a support platform is fixedly connected to the lower end of the support tube.

[0009] In a preferred embodiment, a rotating frame is rotatably connected to the inner side of the support platform, a connecting plate is installed on the outer side of the rotating frame, a lifting plate is fixedly connected to the upper end of the connecting plate, and the lifting plate is slidably connected to the support tube.

[0010] In a preferred embodiment, a first sealing block is fixed to the upper end of the lifting plate, and a second sealing block is provided on the outer side of the first sealing block.

[0011] In a preferred embodiment, the inner side of the mobile platform has a communication port, the outer side of the communication port has a vent, a fireproof partition is fixed to the outer side of the mobile platform, and connecting blocks are fixed to both ends of the mobile platform, with the connecting blocks threadedly connected to the threaded rod.

[0012] In a preferred embodiment, a mounting frame is provided at the upper end of the mounting platform, an air guide frame is installed on the inner side of the mounting frame, and a pump body is provided on the outer side of the air guide frame.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention connects the circuit to the semi-solid energy storage unit by setting up an installation platform, corrugated pipe and overhead wiring pipe, and uses a rotating platform and material rack to install the semi-solid energy storage unit. The moving platform and installation platform with the semi-solid energy storage unit are moved, and the moving platform and storage rack are positioned by connecting the rotating block and threaded rod. Thus, the moving platform and fireproof partition are used to form multiple independent compartments for easy fireproof isolation.

[0015] This utility model uses a mounting frame to cooperate with a storage rack to install a gas guide frame and connect to a moving platform. It uses the main body of the pump as a vent and connects to an external cold source to cool the semi-solid energy storage unit under normal conditions. When heated, the heat-sensitive glass tube between the storage tank and the sliding frame ruptures, allowing the coolant to contact the material rack and the semi-solid energy storage unit. After cooling, the rotating frame and connecting plate drive the lifting plate to rise and fall, thereby using the first and second sealing blocks to help open or close the perimeter of a single material rack. This allows the cooling air duct to be discharged from the lower end of the moving platform, and allows excess coolant to be discharged from the holes on the outside of the support pipe, facilitating subsequent individual maintenance and cleaning. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the storage rack structure of this utility model. Figure 1 .

[0018] Figure 3 This is a schematic diagram of the storage rack structure of this utility model. Figure 2 .

[0019] Figure 4 This is a schematic diagram of the mobile platform structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the rotating platform structure of this utility model.

[0021] Figure 6 This is a schematic diagram of the sliding frame structure of this utility model.

[0022] The attached diagram is labeled as follows: 1. Storage rack; 2. External interface; 3. Rotating block; 4. Threaded rod; 5. Connecting interface; 6. Support pipe; 7. Support platform; 8. Rotating frame; 9. Connecting plate; 10. Lifting plate; 11. First sealing block; 12. Second sealing block; 13. Moving platform; 14. Connecting port; 15. Vent; 16. Fireproof partition; 17. Connecting block; 18. Mounting platform; 19. Mounting frame; 20. Air guide frame; 21. Pump body; 22. Rotating platform; 23. Material rack; 24. Corrugated pipe; 25. Connecting hole; 26. Cable tray; 27. Sliding frame; 28. Fixed plate; 29. ​​Storage tank. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] Implementable methods already discovered in this field:

[0025] Semi-solid-state energy storage systems are essentially energy storage devices with an electrolyte form that falls between traditional liquid and all-solid-state solutions, typically referring to semi-solid-state lithium batteries. Their fundamental characteristic is the transformation of the electrolyte from a free-flowing liquid into a gel- or paste-like "semi-solid" substance.

[0026] This semi-solid electrolyte does not completely eliminate liquid components. Instead, it incorporates a large amount of solid electrolyte materials (such as oxides and sulfides) as fillers into the liquid electrolyte, combined with special polymer gelation technology, to form a stable, three-dimensional network gel system. Semi-solid energy storage systems are typically used in conjunction with fireproof partitions for protection.

[0027] Implementable methods already discovered in this field:

[0028] The design of "fireproof partitions" and "cooling devices" is the core of building a multi-level safety defense line for energy storage systems.

[0029] I. The core function of fireproof partitions The main purpose of fireproof partitions (also known as explosion-proof partitions or heat spread barriers) is not to prevent thermal runaway, but to contain it within the smallest unit and prevent the disaster from spreading.

[0030] 1. Physical isolation: Refractory materials such as ceramic fiber, rock wool, and aerogel with a fire resistance limit of not less than 1 hour are used to separate the battery packs and battery clusters.

[0031] 2. Smoke and flame blocking: Prevents open flames and high-temperature combustible smoke from directly spreading to adjacent compartments.

[0032] 3. Pressure relief and guidance: The partition is usually integrated with or used with a pressure relief valve. When high pressure is generated in the partition due to thermal runaway, it can quickly guide the high temperature flue gas and flames to a preset safety channel to avoid explosive rupture of the partition.

[0033] II. Coordinated Design of Cooling Devices and Fireproof Partitions: The cooling device acts as an active safety system, working in conjunction with passive fireproof partitions to form a comprehensive defense system. Its core functions are as follows:

[0034] 1. Early warning and suppression: In the early stage of thermal runaway, cooling can reduce the battery temperature and delay or terminate the thermal runaway chain reaction.

[0035] 2. Cooling during a disaster: Even if thermal runaway has occurred, the cooling system can still powerfully cool the runaway battery cell and its adjacent cells, absorbing a large amount of heat to prevent the flame from spreading and adjacent cells from being ignited.

[0036] 3. Post-flame cooling: Even after the open flame is extinguished, the battery system may still have extremely high residual temperatures, posing a risk of reignition. The cooling system needs to operate continuously until the system temperature drops to an absolutely safe level.

[0037] III. Specific Types and Implementation Methods of Cooling Devices The following are several cooling solutions suitable for fireproof partitions in semi-solid energy storage systems.

[0038] 1. Totally submerged pipe cooling system

[0039] This is one of the most commonly used and effective solutions, especially given its high integration with fireproof partitions. System components: Cooling piping network: Stainless steel or corrosion-resistant alloy pipes run through each fireproof partition unit, with nozzles installed on the pipes. Coolant storage and release device: Storage tank, start-up valve, pressure source. Detectors: Temperature, smoke, flammable volatile gases, and carbon monoxide detectors are installed in each compartment. Control unit: Receives detector signals, determines the fire level, and triggers corresponding cooling or extinguishing commands.

[0040] Coolant Selection: Perfluorohexanone: A clean gaseous fire extinguishing agent with good insulation properties, causing no damage to batteries and equipment, and providing significant cooling, making it an ideal choice for protecting electrical equipment; Fine water mist: Highly effective. Tiny water droplets can rapidly vaporize, absorbing a large amount of heat, while the water vapor can dilute the oxygen concentration. Attention must be paid to the water quality requirements (deionized water) of the water mist system and subsequent cleanup. For semi-solid-state batteries, the risk of short circuits caused by small amounts of water spray is far lower than for liquid batteries; Heptafluoropropane: A traditional gaseous fire extinguishing agent, primarily used for chemical asphyxiation, but with a weaker cooling effect and less effective at suppressing continuous heat release from batteries compared to perfluorohexanone and fine water mist.

[0041] Workflow: The detector detects an abnormal temperature rise or smoke / VOC generation in a compartment. The control system locates the specific compartment and first activates an audible and visual alarm. If the temperature continues to rise and reaches a threshold, the control system opens a dedicated valve for that compartment, releasing coolant / extinguishing agent into that specific compartment for precise fire suppression without affecting other normal units. The system continues to spray for a period of time while continuously monitoring the temperature to prevent reignition.

[0042] 2. Indirect liquid cooling system + emergency mode semi-solid energy storage system: The system itself is typically equipped with a coolant-based liquid cooling plate system for daily temperature control. Synergy with fireproof partitions: The liquid cooling piping within each fireproof partition unit can be designed as an independent circulation loop.

[0043] Emergency Cooling Mode: When thermal runaway is detected in a compartment, the control system can: close the circulation valve of the faulty compartment to prevent high-temperature coolant from flowing back into the main circulation system and heating other normal batteries; or activate the emergency heat exchanger or emergency coolant injection to pump a large amount of low-temperature coolant into the independent circuit of the faulty compartment for powerful cooling. Although less efficient than direct injection, it can still effectively remove heat.

[0044] 3. Phase change material (PCM) integrated cooling: This is a passive cooling method that can serve as an effective supplement to active cooling systems.

[0045] Implementation method: The phase change material (such as paraffin-based composite PCM) is made into a plate or wrapping and embedded in the fireproof partition or placed between battery modules.

[0046] Working principle: When a battery cell heats up, the PCM absorbs heat and changes from a solid to a liquid state. During this process, the temperature remains relatively constant, which can effectively delay the temperature rise of the battery and buy valuable time for the active cooling system to start.

[0047] Advantages: Completely passive, requires no energy, and is highly reliable. Disadvantages: Limited heat absorption capacity; it ceases to function once the phase change is complete; it typically requires use in conjunction with an active system.

[0048] Refer to the instruction manual appendix Figures 1 to 6 The cooling device for the fireproof partition of the semi-solid energy storage system includes a storage rack 1. The storage rack 1 has external interfaces 2 at both the front and rear ends. A movable platform 13 is provided on the inner side of the storage rack 1. An installation platform 18 is fixedly connected to the upper end of the movable platform 13. A rotating platform 22 for circuit connection is rotatably connected to the inner side of the installation platform 18. A material rack 23 for mounting the semi-solid energy storage unit is threadedly connected to the outer side of the rotating platform 22. A corrugated pipe 24 is installed between the material rack 23 and the storage rack 1. A connecting hole 25 for fluid flow is provided on the inner side of the material rack 23. A cable conduit 26 is provided on the outer side of the rotating platform 22. A cooling structure is provided on the outer side of the material rack 23.

[0049] It should be noted that the storage rack 1 is connected to the moving platform 13, and the moving platform 13 is used to install and rotate the rotating platform 22. At the same time, the rotating platform 22 has a threaded groove on its inner side and a threaded tube on it. Thus, the semi-solid energy storage unit is installed through the rotating platform 22 and the material rack 23. Meanwhile, the circuit is connected to the semi-solid energy storage unit through the mounting platform 18, the corrugated pipe 24 and the overhead line pipe 26, which facilitates series and parallel connection.

[0050] It is worth noting that multiple sets of external interface 2, rotating table 22 and material rack 23 are provided to improve the modular installation of the semi-solid energy storage unit. The cooling structure is connected through external interface 2 and material rack 23 to quickly cool the semi-solid energy storage unit. The connecting hole 25 facilitates airflow and coolant to fully contact the surface of the semi-solid energy storage unit.

[0051] Refer to the instruction manual appendix Figure 6 The cooling structure includes a sliding frame 27 that is slidably connected to the outside of the material rack 23, a fixing plate 28 that is set on the upper end of the sliding frame 27, the fixing plate 28 and the sliding frame 27 being connected by bolts, and a storage tank 29 that is threadedly connected to the outside of the sliding frame 27.

[0052] It should be noted that coolant is stored in storage tank 29, and storage tank 29 is threadedly installed using sliding frame 27. Sliding frame 27 is fixed to the inside of external interface 2 by fixing plate 28 in conjunction with external interface 2. A thermosensitive glass tube is provided between storage tank 29 and sliding frame 27.

[0053] Refer to the instruction manual appendix Figures 2 to 3 Rotating blocks 3 are rotatably connected to both sides of the storage rack 1. A threaded rod 4 is fixedly connected to the upper end of the rotating block 3. A connection interface 5 is opened at the lower end of the storage rack 1. Support tubes 6 are provided at both the front and rear ends of the connection interface 5. A support platform 7 is fixedly connected to the lower end of the support tube 6.

[0054] It should be noted that the rotating block 3 drives the threaded rod 4 to rotate, and the interface 5 is used to connect to the moving platform 13 to facilitate the flow of cooling gas. At the same time, the inner side of the support tube 6 is provided with holes for the line to pass through.

[0055] Refer to the instruction manual appendix Figures 2 to 3 A rotating frame 8 is rotatably connected to the inner side of the support platform 7, and a connecting plate 9 is installed on the outer side of the rotating frame 8. A lifting plate 10 is fixedly connected to the upper end of the connecting plate 9, and the lifting plate 10 is slidably connected to the support tube 6.

[0056] It should be noted that a damping shaft is provided between the rotating frame 8 and the support platform 7, thereby driving the lifting plate 10 to rise and fall through the rotating frame 8 and the connecting plate 9.

[0057] Refer to the instruction manual appendix Figures 2 to 3 A first sealing block 11 is fixedly connected to the upper end of the lifting plate 10, and a second sealing block 12 is provided on the outside of the first sealing block 11.

[0058] It should be noted that the first sealing block 11 and the second sealing block 12 assist in opening or closing the perimeter of a single material rack 23, thereby facilitating the discharge of airflow or coolant and improving cleaning and cooling efficiency.

[0059] Refer to the instruction manual appendix Figure 4The inner side of the movable platform 13 is provided with a communication port 14, and the outer side of the communication port 14 is provided with a ventilation port 15. A fireproof partition 16 is fixedly connected to the outer side of the movable platform 13. Both ends of the movable platform 13 are fixedly connected with connecting blocks 17, and the connecting blocks 17 are threadedly connected to the threaded rod 4.

[0060] It should be noted that the moving platform 13 and the fireproof partition 16, together with the storage rack 1, form multiple independent compartments, which facilitates fireproof isolation. The moving platform 13 and the storage rack 1 are positioned by the connecting block 17 and the threaded rod 4.

[0061] Refer to the instruction manual appendix Figure 4 The upper end of the mounting platform 18 is provided with a mounting frame 19, the inner side of the mounting frame 19 is provided with an air guide frame 20, and the outer side of the air guide frame 20 is provided with a pump body 21.

[0062] It should be noted that the air guide frame 20 is supplied with air through the pump body 21, and the air guide frame 20 is installed and docked with the moving platform 13 through the mounting frame 19 in conjunction with the storage frame 1.

[0063] It is worth noting that the mobile platform 13 is provided with a connecting port 14 and a vent 15. The connecting port 14 is connected to the air guide frame 20, so that the air is supplied to the vent 15 through the pump body 21 and connected to an external cold source. Under normal circumstances, this cools down the semi-solid energy storage unit. At the same time, the semi-solid energy storage unit does not completely fill the material rack 23, so that the corrugated pipe 24 and the inside of the material rack 23 are connected. The connecting hole 25 is used in conjunction with the vent 15 to fully cool down the semi-solid energy storage unit. The connecting holes 25 at the top and bottom can be used in conjunction with the corrugated pipe 24 to facilitate the gas discharge.

[0064] Working principle: First, the circuit is connected to the semi-solid energy storage unit through the mounting platform 18, corrugated pipe 24 and overhead line pipe 26 in series and parallel. Then, the semi-solid energy storage unit is installed through the rotating platform 22 and material rack 23. Next, the moving platform 13 with the semi-solid energy storage unit and the mounting platform 18 are moved, and the moving platform 13 and the storage rack 1 are positioned by connecting the rotating block 3 and the threaded rod 4 to the connecting block 17. Finally, the air guide frame 20 is installed in conjunction with the storage rack 1 through the mounting frame 19 and connected to the moving platform 13. The pump body 21 is used as the air inlet 15 for ventilation, and an external cold source is connected to facilitate cooling of the semi-solid energy storage unit under normal conditions.

[0065] In use, firstly, the sliding frame 27 is fixed to the inner side of the outer interface 2 by the fixing plate 28 in conjunction with the outer interface 2. Then, the storage tank 29 is installed by the thread of the sliding frame 27. When heated, the heat-sensitive glass tube between the storage tank 29 and the sliding frame 27 breaks, allowing the coolant to contact the material rack 23 and the semi-solid energy storage unit. When cooled, the coolant enters the individual compartment through the connecting hole 25 and fully contacts the semi-solid energy storage unit, improving the rapid cooling effect. Finally, the lifting plate 10 is raised and lowered by rotating the frame 8 and connecting plate 9, thereby using the first sealing block 11 and the second sealing block 12 to help open or close the perimeter of the individual material rack 23, so that the cooling air duct is discharged from the lower end of the moving platform 13, and the excess coolant is discharged from the hole on the outside of the support pipe 6, which facilitates subsequent individual maintenance and cleaning.

[0066] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A cooling device for a fireproof partition of a semi-solid energy storage system, comprising a storage rack (1), characterized in that: The storage rack (1) has external interfaces (2) at both the front and rear ends. A moving platform (13) is provided on the inner side of the storage rack (1). An installation platform (18) is fixed to the upper end of the moving platform (13). A rotating platform (22) for circuit connection is rotatably connected to the inner side of the installation platform (18). A material rack (23) for mounting on the semi-solid energy storage unit is threadedly connected to the outer side of the rotating platform (22). A corrugated pipe (24) is installed between the material rack (23) and the storage rack (1). A connecting hole (25) for fluid flow is provided on the inner side of the material rack (23). A cable tray (26) is provided on the outer side of the rotating platform (22). A cooling structure is provided on the outer side of the material rack (23).

2. The cooling device for the fireproof partition of the semi-solid energy storage system according to claim 1, characterized in that: The cooling structure includes a sliding frame (27) that is slidably connected to the outside of the material rack (23), a fixing plate (28) set on the upper end of the sliding frame (27), the fixing plate (28) and the sliding frame (27) being connected by bolts, and a storage tank (29) being threadedly connected to the outside of the sliding frame (27).

3. The cooling device for the fireproof partition of the semi-solid energy storage system according to claim 2, characterized in that: Rotating blocks (3) are rotatably connected to both sides of the storage rack (1). A threaded rod (4) is fixed to the upper end of the rotating block (3). A connection interface (5) is opened at the lower end of the storage rack (1). Support tubes (6) are provided at both the front and rear ends of the connection interface (5). A support platform (7) is fixed to the lower end of the support tube (6).

4. The cooling device for the fireproof partition of the semi-solid energy storage system according to claim 3, characterized in that: The inner side of the support platform (7) is rotatably connected to a rotating frame (8), and a connecting plate (9) is installed on the outer side of the rotating frame (8). A lifting plate (10) is fixedly connected to the upper end of the connecting plate (9), and the lifting plate (10) is slidably connected to the support tube (6).

5. The cooling device for the fireproof partition of the semi-solid energy storage system according to claim 4, characterized in that: The upper end of the lifting plate (10) is fixed with a first sealing block (11), and a second sealing block (12) is provided on the outside of the first sealing block (11).

6. The cooling device for the fireproof partition of the semi-solid energy storage system according to claim 5, characterized in that: The inner side of the mobile platform (13) is provided with a communication port (14), and the outer side of the communication port (14) is provided with a ventilation port (15). A fireproof partition (16) is fixedly connected to the outer side of the mobile platform (13). A connecting block (17) is fixedly connected to both ends of the mobile platform (13). The connecting block (17) is threadedly connected to the threaded rod (4).

7. The cooling device for the fireproof partition of the semi-solid energy storage system according to claim 6, characterized in that: The upper end of the mounting platform (18) is provided with a mounting frame (19), the inner side of the mounting frame (19) is provided with an air guide frame (20), and the outer side of the air guide frame (20) is provided with a pump body (21).

Images