Super capacitor energy storage cabinet of integrated fire fighting system

Abstract

The application relates to a super capacitor energy storage cabinet of an integrated fire extinguishing system, which is characterized in that the cabinet body, the super capacitor module, the current conversion module, the fire extinguishing module and the insulation module are arranged in the cabinet body, the super capacitor module and the current conversion module are electrically connected, the fire extinguishing module is arranged close to the super capacitor module and is used for detecting the gas concentration and the possible fire caused by the failure of the super capacitor module and implementing fire extinguishing, and the cabinet body is further provided with a heat dissipation system for heat dissipation and cooling of the super capacitor module. The application realizes the collaborative operation of energy storage, current conversion and safety protection, thereby solving the problems that the traditional super capacitor energy storage cabinet lacks integrated fire extinguishing and operation guarantee mechanism, cannot realize the collaborative response of electrical isolation, sealed fire extinguishing and pressure regulation when a fault occurs, has safety hidden dangers and the cooling efficiency and equipment protection coordination are insufficient.

Description

Technical Field

[0001] This invention specifically relates to a supercapacitor energy storage cabinet for an integrated fire protection system, which can be used in smart grids, rail colloids, scientific research and military equipment. Background Technology

[0002] With the rapid development of energy technology, supercapacitors, as a highly efficient energy storage device, have been widely used in power systems, rail transportation, and new energy power generation. Supercapacitors enable rapid energy storage and release to meet the demands of high power density and fast charging and discharging. However, supercapacitors also face some pressing technical challenges in practical applications, particularly regarding safety and reliability.

[0003] Traditional supercapacitor cluster designs often fail to adequately integrate fire suppression systems, potentially leading to gas releases or even fires in the event of malfunctions such as overcharging, over-discharging, or overheating. Furthermore, supercapacitors generate heat during operation; inadequate heat dissipation design can negatively impact capacitor lifespan and performance stability. Therefore, integrating efficient fire suppression systems into the design of supercapacitor energy storage cabinets and optimizing cabinet structure to improve heat dissipation efficiency have become pressing technical challenges.

[0004] In existing technologies, the fire protection systems of supercapacitor energy storage cabinets typically rely on external fire-fighting equipment, lacking intelligent automatic response mechanisms. Furthermore, in the event of a fire or gas leak, they cannot promptly cut off the power supply or take effective fire-fighting measures, posing significant safety hazards. Simultaneously, the heat dissipation design of supercapacitors relies on their own cooling system, which cannot meet the heat dissipation requirements of supercapacitor modules under high-power operating conditions within a confined space, leading to decreased equipment efficiency or even damage.

[0005] Therefore, there is an urgent need for a supercapacitor energy storage cabinet that can integrate fire protection systems, optimize heat dissipation design, and improve safety and reliability to meet the needs of modern energy storage systems for high efficiency, safety, and intelligence. Summary of the Invention

[0006] The purpose of this invention is to provide a supercapacitor energy storage cabinet that integrates a fire protection system, optimizes heat dissipation design, and improves safety and reliability. It realizes the coordinated operation of energy storage, power conversion and safety protection, thereby solving the problems of traditional supercapacitor energy storage cabinets lacking integrated fire protection and operation support mechanisms, failing to achieve coordinated response of electrical isolation, sealed fire extinguishing and pressure regulation in the event of a fault, posing safety hazards and having insufficient coordination between cooling efficiency and equipment protection.

[0007] To achieve the above objectives, the technical solution of this invention is: a supercapacitor energy storage cabinet for an integrated fire protection system, the innovation of which lies in: comprising a cabinet, a supercapacitor module, a converter module, a fire protection module, and an insulation module. The cabinet is fixed to the insulating module, which is directly or indirectly secured to the ground foundation for electrical insulation. This insulation meets the withstand voltage and creepage requirements of different voltage levels. The supercapacitor module, converter module, and fire protection module are all mounted on the cabinet. The supercapacitor module is located above the converter module and is electrically connected to it. The fire suppression module is located close to the supercapacitor module and is used to detect the concentration of gases released by the supercapacitor module due to a malfunction and any potential flames, and to implement fire suppression measures. The cabinet is also equipped with a heat dissipation system for cooling the supercapacitor module.

[0008] In the above technical solution, the cabinet includes a lower open frame structure and an upper sealed cabinet arranged vertically. The supercapacitor module and the fire protection module are both installed in the upper sealed cabinet, and a heat dissipation system is provided on the upper sealed cabinet. The converter module is installed on the lower open frame structure.

[0009] In the above technical solution, the lower open frame structure is a frame body welded from steel materials. The frame body includes four corner columns and upper and lower quadrilateral bottom frames welded to the top and bottom of the four corner columns. The internal space of the frame body is divided into multiple drawer-type accommodating spaces for accommodating converter modules from bottom to top by intermediate layer support beams along its height direction.

[0010] In the above technical solution, the upper sealed cabinet adopts a cabinet structure and has a main frame. The main frame includes four corner columns and upper and lower quadrilateral bottom frames welded to the top and bottom of the four corner columns. The lower quadrilateral bottom frame is provided with a fixed sealing plate. The left and right sides, back and top of the main frame are provided with detachable sealing plates or hinged doors or hinged sealing plates, and the front is provided with a hinged door or hinged sealing plate. The top of the upper sealed cabinet is provided with lifting lugs for easy transportation.

[0011] In the above technical solution, the cabinet includes an upper sealed cabinet, and the heat dissipation system is installed on the upper sealed cabinet. The heat dissipation system includes louvers, a pressure relief vent, a cooling fan, and an air damper. The upper sealed cabinet has a pressure relief vent, and its door or panel has louvers. The top of the upper sealed cabinet has an opening, and the cooling fan is mounted on the upper sealed cabinet, positioned above the supercapacitor module. An air damper covers the cooling fan. When the cooling fan draws air outward, the louvers are open, allowing outside air to enter the upper sealed cabinet and form a cooling air duct from bottom to top inside, cooling the supercapacitor module. Finally, the heat is discharged through the opening under the action of the cooling fan.

[0012] In the above technical solution, the louvers are either self-closing louvers or motorized louvers. If self-closing louvers are used, they are opened by the suction of the cooling fan and automatically closed after the cooling fan is turned off. If motorized louvers are used, they are opened or closed by an external signal and are linked with the cooling fan. In the event of no external signal received and the entire system is powered off, the motorized louvers will automatically close.

[0013] In the above technical solution, the top of the cabinet body is equipped with a support insulator, which is used to fix the fire gas delivery pipeline connected to the fire protection module and to ensure electrical insulation between the fire protection pipeline and the cabinet body.

[0014] In the above technical solution, the top of the upper sealed cabinet is composed of multiple sealing plates spliced ​​together, and the heat dissipation fan is fixed on the middle sealing plate, while the remaining sealing plates are fixed with fire protection modules.

[0015] In the above technical solution, the supercapacitor module includes several supercapacitor modules, current-carrying conductors, and signal lines. The several supercapacitor modules are connected in series through the current-carrying conductors, and the supercapacitor modules communicate with the converter module through the signal lines.

[0016] In the above technical solution, the cabinet includes an upper sealed cabinet, and the interior of the upper sealed cabinet is provided with a multi-layer grid-shaped structure composed of crossbeams and short columns. Each layer is separated into multiple drawer-type independent accommodating spaces. Several supercapacitor modules of the supercapacitor module are pushed into their respective independent accommodating spaces, and fasteners are used to secure the protruding lugs on both sides of the supercapacitor module to the crossbeams of the grid-shaped structure, thereby achieving the purpose of fixing the supercapacitor module.

[0017] In the above technical solution, the converter module includes a converter module that can realize AC-DC conversion and a switch module that realizes on-off control. The AC terminal of the converter module is used to connect to the AC input terminal, and the DC terminal is connected to the DC input terminal of the switch module through a connecting copper busbar. The DC output terminal of the switch module is electrically connected to the supercapacitor module through a connecting cable.

[0018] In the above technical solution, the converter module includes a switching module for controlling the on and off states, and the DC output terminal of the switching module is electrically connected to the supercapacitor module via a connecting cable.

[0019] In the above technical solution, the connecting cable passes through the wiring hole on the cabinet, and the connecting cable and the wiring hole are sealed together.

[0020] In the above technical solution, the converter module and the switch module of the converter module are placed in different accommodating spaces, and the protruding lugs on both sides of the converter module are fastened to the column by screws to achieve the purpose of fixing the converter module.

[0021] In the above technical solution, the cabinet includes an upper sealed cabinet, and both the supercapacitor module and the fire protection module are installed inside the upper sealed cabinet. The fire protection module includes a fire detector, a fire gas nozzle, and fire control and signal conversion equipment located at the top of the upper sealed cabinet. The fire detector and the fire gas nozzle are respectively connected to the corresponding connection terminals of the fire control and signal conversion equipment. The fire gas nozzle is connected to the external fire protection pipeline. The fire detector is used to detect the gas condition inside the upper sealed cabinet in real time. When the gas concentration reaches a set value or an open flame is detected, the fire control and signal conversion equipment sends a corresponding control signal to close the louvers and cooling fans of the heat dissipation system, and the fire gas nozzles spray fire-fighting gas. When excessive amounts of fire-fighting gas are sprayed, causing excessive internal pressure in the upper sealed cabinet, the pressure is released through the pressure relief port on the upper sealed cabinet. At the same time, the fire control and signal conversion equipment sends a signal to the switching module of the converter module to disconnect the electrical connection between the converter module and the supercapacitor module.

[0022] The positive effects of this invention are: After adopting the supercapacitor energy storage cabinet of the integrated fire protection system of this invention, since this invention includes a cabinet, a supercapacitor module, a converter module, a fire protection module, and an insulation module, The cabinet is fixed to the insulating module, which is directly or indirectly secured to the ground foundation for electrical insulation. This insulation meets the withstand voltage and creepage requirements of different voltage levels. The supercapacitor module, converter module, and fire protection module are all mounted on the cabinet. The supercapacitor module is located above the converter module and is electrically connected to it. The fire suppression module is located close to the supercapacitor module and is used to detect the concentration of gases released by the supercapacitor module due to a malfunction and any potential flames, and to implement fire suppression measures. The cabinet is also equipped with a heat dissipation system to cool the supercapacitor module. Therefore, this invention integrates the supercapacitor module, converter module, and fire protection module into a single cabinet structure, achieving coordinated operation of energy storage, power conversion, and safety protection. Under normal operating conditions, the heat dissipation system improves the heat dissipation efficiency and operational stability of the supercapacitor module, extending equipment lifespan. Under fault conditions, the fire protection module can quickly trigger a coordinated response of electrical isolation, fire suppression sealing, and pressure regulation, effectively preventing the escalation of danger and solving the problems of insufficient safety protection and poor coordination among systems in traditional supercapacitor energy storage cabinets. Simultaneously, the modular structural design and clear spatial layout facilitate equipment installation, inspection, and maintenance, significantly improving the product's practicality and reliability. The combination of an open frame and a sealed cabinet design not only meets the heat dissipation requirements of the converter module but also provides a reliable protective environment for the supercapacitor module and the fire protection module. In summary, this invention not only solves the problem of installing and fixing the various devices within a supercapacitor cluster, but also realizes cluster-level fire protection for supercapacitor energy storage systems, enabling the handling of individual clusters experiencing thermal runaway or fire, effectively limiting the scope of the accident's impact. Furthermore, it has a high degree of integration, is convenient to install and transport, and can be flexibly configured. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a specific embodiment of the present invention; Figure 2 This is a schematic diagram of the cabinet and heat dissipation system of the present invention; Figure 3 for Figure 2 A schematic diagram from another direction; Numbering on the map: 100. Cabinet; 200. Supercapacitor module; 300. Converter module; 400. Fire protection module; 500. Insulation module; 101. Lower open frame; 102. Upper sealed cabinet; 1021. Hinged door or hinged panel; 1022. Louver; 1023. Pressure relief port; 1024. Fan; 1026. Post insulator; 1025. Air damper; 201. Supercapacitor module; 202. Module connecting copper busbar; 203. Signal line; 301. Converter module; 302. Switch module; 303. Connecting copper busbar; 304. Connecting cable; 401. Fire detector; 402. Fire gas nozzle; 403. Fire control and signal conversion equipment. Detailed Implementation

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0026] like Figure 1 , 2 As shown in Figure 3, a supercapacitor energy storage cabinet for an integrated fire protection system includes a cabinet 100, a supercapacitor module 200, a converter module 300, a fire protection module 400, and an insulation module 500. The cabinet 100 is fixed to the insulating module 500, and the insulating module 500 is directly or indirectly fastened to the ground foundation. This method not only achieves the installation and fixation of the supercapacitor energy storage cabinet but also ensures electrical isolation between it and the ground, meeting the withstand voltage and creepage requirements of different voltage levels. The supercapacitor module 200, converter module 300, and fire protection module 400 are all mounted on the cabinet 100. The supercapacitor module 200 is located above the converter module 300 and is electrically connected to the converter module 300. The fire suppression module 400 is arranged close to the supercapacitor module 200 and is used to detect the gas concentration and possible flames released by the supercapacitor module 200 due to a malfunction, and can implement fire suppression measures. The cabinet 100 is also equipped with a heat dissipation system for cooling the supercapacitor module 200.

[0027] Therefore, this invention integrates all the equipment and components of a supercapacitor cluster. Users can flexibly configure the number, fixing method, and arrangement of supercapacitor energy storage cabinets according to system needs. Furthermore, the number, voltage, capacitance, and other parameters of the supercapacitor modules in the supercapacitor module 200 can be flexibly adjusted as needed. This specific embodiment serves as an example, demonstrating a supercapacitor energy storage cabinet used under AC 35kV high-voltage conditions, such as... Figure 1 As shown, the supercapacitor energy storage cabinet is fixed on the insulating module 500, and the supercapacitor module 200 contains 12 supercapacitor modules.

[0028] Furthermore, such as Figure 1 , 2 As shown in Figure 3, in order to make the overall structural layout more reasonable and to provide targeted fire protection for the supercapacitor module, while the converter module does not have fire protection requirements, the cabinet 100 of the present invention includes a lower open frame structure 101 and an upper sealed cabinet 102 arranged vertically. The supercapacitor module 200 and the fire protection module 400 are both set in the upper sealed cabinet 102, and the upper sealed cabinet 102 is equipped with a heat dissipation system. The converter module 300 is set on the lower open frame structure 101.

[0029] Furthermore, such as Figure 2 , 3 As shown, in order to ensure the rigidity and stability of the overall structure of the lower open frame, the lower open frame structure 101 is a frame body welded from steel materials. The frame body includes four corner columns and upper and lower quadrilateral bottom frames welded to the top and bottom of the four corner columns. The internal space of the frame body is divided into multiple drawer-type accommodating spaces for accommodating the converter module 300 by intermediate layer support beams along its height direction from bottom to top.

[0030] Furthermore, such as Figure 2 , 3As shown, in order to accommodate the supercapacitor module and the fire protection module and house them in a sealed space to achieve fire protection and heat dissipation, as well as to facilitate the quick assembly and disassembly of the supercapacitor module, the upper sealed cabinet 102 adopts a cabinet structure and has a main frame. The main frame includes four corner columns and upper and lower quadrilateral bottom frames welded to the top and bottom of the four corner columns. The lower quadrilateral bottom frame is provided with a fixed sealing plate. The left and right sides, back and top of the main frame are provided with detachable sealing plates or hinged doors or hinged sealing plates, and the front is provided with a hinged door or hinged sealing plate 1021. The top of the upper sealed cabinet 102 is also provided with lifting lugs for easy transportation.

[0031] Furthermore, in order to optimize the heat dissipation system and ensure heat dissipation performance, such as... Figure 2 , 3 As shown, the cabinet 100 includes an upper sealed cabinet 102, and the heat dissipation system is installed on the upper sealed cabinet 102. The heat dissipation system includes louvers 1022, a pressure relief port 1023, a cooling fan 1024, and an air damper 1025. The upper sealed cabinet 102 is equipped with a pressure relief port 1023, which can open to release pressure when the internal air pressure reaches a set value, ensuring safety. Its door or sealing plate is equipped with louvers 1022, which are located on the lower side of the upper sealed cabinet 102. The top of the upper sealed cabinet 102 has an opening, and the cooling fan 1024 is mounted on the upper sealed cabinet 102, positioned above the supercapacitor module 200. An air damper 1025 covers the cooling fan 1024. When the cooling fan 1024 draws air outward, the louvers 1022 are open, allowing outside air to enter the upper sealed cabinet 102 and form a cooling air duct from bottom to top inside, cooling the supercapacitor module 200. Finally, the heat is discharged through the opening under the action of the cooling fan 1024.

[0032] Specifically, the present invention can adapt the performance of the louvers and the fan to meet the heat dissipation requirements. Under normal operating conditions, the louvers 1022 are open, and the cooling fan 1024 at the top rotates upward to draw out the air inside the cabinet and create negative pressure. Air from the external environment enters through the louvers 1022, forming an air duct from the lower rear part of the upper sealed cabinet 102 to the upper front part of the cabinet. This air duct carries away the heat generated by the supercapacitor module 200 during operation, thereby cooling the supercapacitor module, ensuring stable operation of the supercapacitor module 200, and extending its service life.

[0033] Furthermore, the louver 1022 described in this invention is either a self-closing louver or an electric louver. If a self-closing louver is used, it is opened by the suction of the cooling fan 1024 and automatically closed after the cooling fan 1024 is turned off. If an electric louver is used, it is controlled to open or close by an external signal and is linked with the cooling fan 1024. In the event that no external signal is received and the entire system is powered off, the electric louver will automatically close.

[0034] Furthermore, such as Figure 1 , 2 As shown in Figure 3, in order to facilitate the fixing of the fire gas transmission pipeline and make it easier to manage, the top of the cabinet 100 is equipped with a support insulator 1026, which is used to fix the fire gas transmission pipeline connected to the fire module 400 and to ensure the electrical insulation between the fire pipeline and the cabinet.

[0035] Furthermore, in order to optimize the overall layout of the heat dissipation fan and fire protection module in the enclosed space, making the structure more compact and reasonable, the top of the upper sealed cabinet 102 is made of multiple sealing plates spliced ​​together, and the heat dissipation fan 1024 is fixed on the middle sealing plate, while the fire protection module 400 is fixed on the remaining sealing plates.

[0036] Furthermore, such as Figure 1 As shown, in order to construct the present invention into a supercapacitor cluster, the configuration can be flexibly adjusted according to actual needs. The supercapacitor module 200 includes several supercapacitor modules 201, current-carrying conductors 202 and signal lines 203. Several supercapacitor modules 201 are connected in series through the current-carrying conductors 202, and the supercapacitor modules 201 communicate with the converter module 300 through the signal lines 203.

[0037] Furthermore, such as Figure 1 , 2 As shown, in order to make the overall layout of the supercapacitor module more reasonable, avoid heat concentration in the layout area during operation, and facilitate quick assembly and disassembly, the present invention arranges the supercapacitor modules in layers. Specifically, the cabinet 100 includes an upper sealed cabinet 102, and the interior of the upper sealed cabinet 102 is provided with a multi-layer grid-shaped structure composed of crossbeams and short columns. Each layer is separated by multiple drawer-type independent storage spaces. Several supercapacitor modules 201 of the supercapacitor module 200 are pushed into their respective independent storage spaces, and fasteners are used to secure the protruding lugs on both sides of the supercapacitor module 201 to the crossbeams of the grid-shaped structure, thereby achieving the purpose of fixing the supercapacitor module 201.

[0038] Furthermore, to adapt to the technical requirements of different environments, the converter module 300 can be configured with a single switch module 302, or the switch module 302 can be used in combination with the converter module 301. Specifically: like Figure 1 As shown, in order to further improve the overall rationality of the structure, the converter module 300 includes a converter module 301 that can realize AC-DC conversion and a switch module 302 that realizes on-off control. The AC terminal of the converter module 301 is used to connect to the AC input terminal, and the DC terminal is connected to the DC input terminal of the switch module 302 through the connecting copper busbar 303. The DC output terminal of the switch module 302 is electrically connected to the supercapacitor module 200 through the connecting cable 304.

[0039] Alternatively, the converter module 300 may include a switch module 302 for controlling the switching on and off, and the DC output terminal of the switch module 302 may be electrically connected to the supercapacitor module 200 via a connecting cable 304.

[0040] Of course, the converter module 301 and the switch module 302 of the present invention can be configured with different specifications according to system requirements. When multiple supercapacitor energy storage cabinets work together, the AC terminal of the converter module 301 of the present invention is connected to the AC input line through a copper busbar in series with the AC terminal of the converter module of other adjacent supercapacitor energy storage cabinets. The switch module 302 of the present invention can collect and upload the operating status parameters of each supercapacitor module 201. At the same time, it integrates a circuit breaker and a fuse, which can isolate the supercapacitor module 200 from the main circuit at the first time an abnormality occurs.

[0041] Furthermore, in order to facilitate wiring, achieve electrical connection, and ensure the sealing of the wiring location, the upper sealed cabinet 102 of the cabinet 100 is provided with several openings. The connecting cable 304 and other cables pass through the corresponding wiring holes on the cabinet 100, and the connecting cable 304 and the wiring hole are sealed together by a gland, a rubber plug, or a sealing ring.

[0042] Furthermore, such as Figure 1 As shown, for easy and quick installation, the converter module 301 and the switch module 302 of the converter module 300 are placed in different accommodating spaces, and the protruding lugs on both sides of the converter module 301 are fastened to the column by screws to achieve the purpose of fixing the converter module 301.

[0043] Furthermore, such as Figure 1 As shown, in order to perform fire monitoring more accurately and efficiently, the cabinet 100 includes an upper sealed cabinet 102, and both the supercapacitor module 200 and the fire protection module 400 are installed inside the upper sealed cabinet 102. The fire protection module 400 includes a fire detector 401, a fire gas nozzle 402, and a fire control and signal conversion device 403, all located at the top of the upper sealed cabinet 102. The fire detector 401 and the fire gas nozzle 402 are respectively connected to the corresponding connection terminals of the fire control and signal conversion device 403. The fire gas nozzle 402 is connected to an external fire protection pipeline. The fire detector 401 is used to detect the gas status inside the upper sealed cabinet 102 in real time. When the gas concentration reaches a set value or an open flame appears, it will send a command to the fire control and signal conversion device 403, which will then send a corresponding control signal to close the louvers 1022 and the cooling fan 1024 of the heat dissipation system. At this time, the inside of the cabinet is sealed, and the fire gas nozzle 402 sprays fire gas to extinguish the flame inside the cabinet. Simultaneously, the fire control and signal conversion device 403 sends a signal to the switching module 302 of the converter module 300 to disconnect the electrical connection between the converter module 301 and the supercapacitor module 200, so that the supercapacitor module no longer floats and continuously inputs energy. The above process can quickly extinguish the fire and effectively prevent the fire from spreading to nearby equipment. In special circumstances, such as a fire or a power outage that renders the blinds uncontrollable, the fire-fighting gas, once released, creates positive pressure within the sealed cabinet, causing the blinds to close and form a seal, thus increasing safety redundancy. If too much fire-fighting gas is sprayed, causing excessive internal pressure in the upper sealed cabinet 102, the pressure is released through the pressure relief port 1023 on the upper sealed cabinet 102 to prevent further pressure increases that could lead to an explosion.

[0044] The fire detector 401 of this invention can be configured differently as needed, using different types of sensors to detect different gases, such as acetonitrile combustible gas, smoke, temperature, CO, etc. The fire control and signal conversion equipment includes a control module, a signal acquisition module and a communication module electrically connected to the control module. The fire detector 401 is electrically connected to the signal acquisition module to realize signal conversion. The converter module 300 is communicatively connected to the communication module to output corresponding on / off control signals. The control module is also electrically connected to the fire gas nozzle 402 to output action signals for spraying fire gas.

[0045] The power and signal cables of the fire protection module 400, the cooling fan 1024 and the louver 1022 described in this invention are gathered on the terminal block fixed inside the upper sealed cabinet 102, and then led out through the wire harness and connected to the converter module 300 through the opening on the cabinet.

[0046] In summary, this invention integrates the supercapacitor module, converter module, and fire protection module into a single cabinet structure, achieving coordinated operation of energy storage, power conversion, and safety protection. Under normal operating conditions, the combination of fans and louvers forms an effective airflow, improving the heat dissipation efficiency and operational stability of the supercapacitor module and extending equipment lifespan. Under fault conditions, the fire protection module can quickly trigger a coordinated response of electrical isolation, fire suppression sealing, and pressure regulation, effectively preventing the escalation of danger and solving the problems of insufficient safety protection and poor coordination among systems in traditional supercapacitor energy storage cabinets. Simultaneously, the modular structural design and clear spatial layout facilitate equipment installation, inspection, and maintenance, significantly improving the product's practicality and reliability. The combination of an open frame and a sealed cabinet design not only meets the heat dissipation requirements of the converter module but also provides a reliable protective environment for the supercapacitor module and the fire protection module.

[0047] In summary, this invention not only solves the problem of installing and fixing the various devices within a supercapacitor cluster, but also realizes cluster-level fire protection for supercapacitor energy storage systems, enabling the handling of individual clusters experiencing thermal runaway or fire, effectively limiting the scope of the accident's impact. Furthermore, it has a high degree of integration, is convenient to install and transport, and can be flexibly configured.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0049] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A supercapacitor energy storage cabinet for an integrated fire protection system, characterized in that: It includes a cabinet (100), a supercapacitor module (200), a converter module (300), a fire protection module (400), and an insulation module (500). The cabinet (100) is fixed on the insulating module (500), and the insulating module (500) is directly or indirectly fastened to the ground foundation for electrical insulation to the ground and to meet the withstand voltage and creepage requirements of different voltage levels. The supercapacitor module (200), converter module (300) and fire protection module (400) are all installed on the cabinet (100). The supercapacitor module (200) is located above the converter module (300) and is electrically connected to the converter module (300). The fire suppression module (400) is located close to the supercapacitor module (200) and is used to detect the gas concentration and possible flames released by the supercapacitor module (200) due to a malfunction, and to implement fire suppression measures. The cabinet (100) is also equipped with a heat dissipation system for cooling the supercapacitor module (200).

2. The supercapacitor energy storage cabinet of the integrated fire protection system according to claim 1, characterized in that: The cabinet (100) includes a lower open frame structure (101) and an upper sealed cabinet (102) arranged vertically. The supercapacitor module (200) and the fire protection module (400) are both located in the upper sealed cabinet (102), and the upper sealed cabinet (102) is equipped with a heat dissipation system. The converter module (300) is located on the lower open frame structure (101).

3. The supercapacitor energy storage cabinet of the integrated fire protection system according to claim 2, characterized in that: The lower open frame structure (101) is a frame body welded from steel material. The frame body includes four corner columns and upper and lower quadrilateral bottom frames welded to the top and bottom of the four corner columns. The internal space of the frame body is divided into multiple drawer-type storage spaces for accommodating the converter module (300) by intermediate layer support beams along its height direction from bottom to top.

4. The supercapacitor energy storage cabinet of the integrated fire protection system according to claim 2, characterized in that: The upper sealed cabinet (102) adopts a cabinet structure and has a main frame. The main frame includes four corner columns and upper and lower quadrilateral bottom frames welded to the top and bottom of the four corner columns. The lower quadrilateral bottom frame is provided with a fixed sealing plate. The left and right sides, back and top of the main frame are provided with detachable sealing plates or hinged doors or hinged sealing plates, and the front is provided with a hinged door or hinged sealing plate (1021). The top of the upper sealed cabinet (102) is also provided with lifting lugs for easy transportation.

5. The supercapacitor energy storage cabinet of the integrated fire protection system according to claim 1, characterized in that: The cabinet (100) includes an upper sealed cabinet (102), and the heat dissipation system is installed on the upper sealed cabinet (102). The heat dissipation system includes louvers (1022), pressure relief port (1023), heat dissipation fan (1024), and air damper (1025). The upper sealed cabinet (102) is provided with pressure relief port (1023), and its door or sealing plate is provided with louvers (1022). The top of the upper sealed cabinet (102) is provided with an opening, and the heat dissipation fan (1024) is set on the upper sealed cabinet (102) and located above the supercapacitor module (200). The heat dissipation fan (1024) is covered with an air damper (1025). When the cooling fan (1024) draws air outward, the louvers (1022) are open, allowing external air to enter the upper sealed cabinet (102) and form a cooling air duct from bottom to top inside, cooling the supercapacitor module (200), and finally allowing the heat to be discharged through the opening under the action of the cooling fan (1024).

6. The supercapacitor energy storage cabinet of the integrated fire protection system according to claim 5, characterized in that: The louver (1022) is either a self-closing louver or an electric louver. If a self-closing louver is used, it is opened by the suction of the cooling fan (1024) and automatically closed after the cooling fan (1024) is turned off. If an electric louver is used, it is controlled to open or close by an external signal and is linked with the cooling fan (1024). In the event that no external signal is received and the power is cut off, the electric louver will automatically close.

7. The supercapacitor energy storage cabinet of the integrated fire protection system according to claim 1, characterized in that: The top of the cabinet (100) is equipped with a support insulator (1026) to fix the fire gas delivery pipeline connected to the fire module (400) and to ensure electrical insulation between the fire pipeline and the cabinet.

8. The supercapacitor energy storage cabinet of the integrated fire protection system according to claim 5, characterized in that: The top of the upper sealed cabinet (102) is made up of multiple sealing plates, and the heat dissipation fan (1024) is fixed on the middle sealing plate, while the remaining sealing plates are fixed with fire protection modules (400).

9. The supercapacitor energy storage cabinet of the integrated fire protection system according to claim 1, characterized in that: The supercapacitor module (200) includes several supercapacitor modules (201), current-carrying conductors (202) and signal lines (203). The several supercapacitor modules (201) are connected in series through the current-carrying conductors (202), and the supercapacitor modules (201) communicate with the converter module (300) through the signal lines (203).

10. The supercapacitor energy storage cabinet of the integrated fire protection system according to claim 1, characterized in that: The cabinet (100) includes an upper sealed cabinet (102), and the interior of the upper sealed cabinet (102) is provided with a multi-layer grid-shaped structure composed of crossbeams and short columns. Each layer is separated by multiple drawer-type independent storage spaces. Several supercapacitor modules (201) of the supercapacitor module (200) are pushed into the corresponding independent storage spaces, and the protruding lugs on both sides of the supercapacitor module (201) are fastened to the crossbeams of the grid-shaped structure by fasteners, so as to fix the supercapacitor module (201).

11. The supercapacitor energy storage cabinet of the integrated fire protection system according to claim 1, characterized in that: The converter module (300) includes a converter module (301) that can realize AC-DC conversion and a switch module (302) that realizes on-off control. The AC terminal of the converter module (301) is used to connect to the AC input terminal, and the DC terminal is connected to the DC input terminal of the switch module (302) through a connecting copper busbar (303). The DC output terminal of the switch module (302) is electrically connected to the supercapacitor module (200) through a connecting cable (304).

12. The supercapacitor energy storage cabinet of the integrated fire protection system according to claim 1, characterized in that: The converter module (300) includes a switch module (302) for controlling the on and off states. The DC output terminal of the switch module (302) is electrically connected to the supercapacitor module (200) via a connecting cable (304).

13. The supercapacitor energy storage cabinet of the integrated fire protection system according to claim 11, characterized in that: The connecting cable (304) passes through the wiring hole on the cabinet (100), and the connecting cable (304) is sealed to the wiring hole.

14. The supercapacitor energy storage cabinet of the integrated fire protection system according to claim 3, characterized in that: The converter module (301) and the switch module (302) of the converter module (300) are placed in different accommodating spaces, and the protruding lugs on both sides of the converter module (301) are fastened to the column by screws to achieve the purpose of fixing the converter module (301).

15. The supercapacitor energy storage cabinet of the integrated fire protection system according to claim 1, characterized in that: The cabinet (100) includes an upper sealed cabinet (102), and the supercapacitor module (200) and the fire protection module (400) are both located inside the upper sealed cabinet (102). The fire protection module (400) includes a fire detector (401), a fire gas nozzle (402), and a fire control and signal conversion device (403) located at the top of the upper sealed cabinet (102). The fire detector (401) and the fire gas nozzle (402) are respectively connected to the corresponding connection terminals of the fire control and signal conversion device (403). The fire gas nozzle (402) is connected to the external fire protection pipeline. The fire detector (401) is used to detect the gas status inside the upper sealed cabinet (102) in real time. When the gas concentration reaches the set value or an open flame appears, the fire control and signal conversion device (403) sends a corresponding control signal to close the louvers (1022) and cooling fan (1024) of the heat dissipation system, and the fire gas nozzle (402) sprays fire gas. When excessive fire-fighting gas is sprayed, causing excessive internal pressure in the upper sealed cabinet (102), the pressure is released through the pressure relief port (1023) on the upper sealed cabinet (102). At the same time, the fire control and signal conversion equipment (403) sends a signal to the switching module (302) of the converter module (300) to disconnect the electrical connection between the converter module (301) of the converter module (300) and the supercapacitor module (200).

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