Outdoor energy storage cabinet fire extinguishing system stable in execution

Abstract

The utility model relates to the technical field of energy storage cabinet fire extinguishing systems, and discloses a stable-execution outdoor energy storage cabinet fire extinguishing system, which comprises a control module, a monitoring module and an execution module, the monitoring module and the execution module are in communication connection with the control module, the execution module comprises a fire extinguishing device, and the fire extinguishing device is communicated with a cooling air duct of an energy storage cabinet. The fire extinguishing device is communicated with the cooling air duct in the energy storage cabinet, so that the fire extinguishing efficiency and the coverage range of the fire extinguishing system are remarkably enhanced. Firstly, through guiding of the cooling air duct, a fire extinguishing medium can reach a fire source and a high-temperature area more accurately, rapid fire extinguishing and cooling are achieved, and fire spreading is effectively restrained. And secondly, flowing of the fire extinguishing medium in the air duct promotes rapid dissipation of heat in the energy storage cabinet, the overall temperature can be reduced, and chain reaction caused by overheating of the battery module is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage cabinet fire protection systems, and more particularly to an outdoor energy storage cabinet fire protection system with stable execution. Background Art

[0002] With the rapid development of renewable energy, industrial and commercial energy storage cabinets, as important energy storage devices, are playing an increasingly important role in power systems. Energy storage cabinets are often deployed in field environments to store and regulate electricity to cope with grid fluctuations and provide backup power.

[0003] During the operation of energy storage equipment, batteries may catch fire or even explode due to thermal runaway. Therefore, fire extinguishing devices are installed in energy storage equipment. The fire extinguishing area of ​​a single fire extinguishing device is limited. To ensure the fire extinguishing effect, multiple fire extinguishing devices are often required, resulting in high costs.

[0004] The above shortcomings need to be improved. Utility Model Content

[0005] In order to solve or alleviate the problems of limited fire extinguishing area of ​​a single fire extinguishing device in the above-mentioned prior art energy storage cabinet fire fighting system and high cost of installing multiple fire extinguishing devices, the present invention provides a stable outdoor energy storage cabinet fire fighting system.

[0006] The technical solution of this utility model is as follows:

[0007] A stable outdoor energy storage cabinet fire protection system includes a control module, a monitoring module and an execution module communicatively connected to the control module. The execution module includes a fire extinguishing device connected to a cooling air duct of the energy storage cabinet.

[0008] Furthermore, the monitoring module includes multiple fire sensors, and multiple of the multiple fire sensors are distributed in the energy storage cabinet. When at least two fire sensors reach a monitoring threshold, the control module controls the execution module to extinguish the fire.

[0009] Furthermore, the fire protection sensor includes a temperature sensor and a smoke sensor.

[0010] Furthermore, the control module is communicatively connected to an alarm module, and when the monitoring module reaches a threshold, the control module controls the alarm module to sound an alarm.

[0011] Furthermore, the execution module includes a fire extinguishing device.

[0012] Furthermore, the fire extinguishing device is an aerosol fire extinguisher.

[0013] Furthermore, the fire extinguishing device is connected to the cooling air duct in the energy storage cabinet.

[0014] Furthermore, the execution module includes a thyristor, which is arranged on the line between the battery pack and the AC adapter, or on the line between the battery pack and the powered device.

[0015] Furthermore, the temperature sensor includes a first temperature sensor and a second temperature sensor, the first temperature sensor is arranged in the energy storage cabinet, and the second temperature sensor is arranged in the battery pack.

[0016] Furthermore, the smoke sensors are arranged at intervals in the energy storage cabinet, and at least one smoke sensor is arranged on the top of the energy storage cabinet.

[0017] Furthermore, the control module includes a communication module, which includes a local communication unit and a remote communication unit. The local communication unit is used to detect the data of the monitoring module and control the operation of the execution module. The remote communication unit is used to transmit the local status to the adjacent energy storage cabinet and to communicate with the host computer.

[0018] Furthermore, the remote communication unit includes a wired communication device and a wireless communication device.

[0019] The beneficial effect of the present invention according to the above scheme is that, by connecting the fire extinguishing device with the cooling air duct in the energy storage cabinet, the present invention significantly enhances the fire extinguishing efficiency and coverage of the fire protection system, without the need to set up multiple fire extinguishing devices. First, through the guidance of the cooling air duct, the fire extinguishing medium can reach the fire source and high-temperature areas more accurately, achieving rapid fire extinguishing and cooling, and effectively curbing the spread of the fire. Secondly, the flow of the fire extinguishing medium in the air duct promotes the rapid dissipation of heat inside the energy storage cabinet, helps to reduce the overall temperature, and prevents the chain reaction caused by overheating of the battery module. In addition, the original cooling system structure of the energy storage cabinet is fully utilized, and there is no need to add a complex fire extinguishing pipeline layout, which reduces the cost and complexity of the system modification. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of the system structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the system access AC circuit of the utility model;

[0023] Figure 3 for Figure 2 Schematic diagram of the local circuit;

[0024] Figure 4 This is a schematic diagram of a local circuit of the monitoring module of the present utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the energy storage cabinet of the present utility model.

[0026] Among them, the reference numerals in the figure are: 1. control module; 2. monitoring module; 201. temperature sensor; 202. smoke sensor; 3. execution module; 301. fire extinguishing device; 302. thyristor; 4. alarm module; 5. communication module; 6. host computer; 7. energy storage cabinet; 701. battery pack; 702. cooling air duct. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] It should be noted that when a component is referred to as being "fixed" or "set" or "connected" to another component, it may be located directly or indirectly on the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and cannot be understood as limitations on this technical solution. The terms "first", "second", etc. are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0029] like Figure 1 As shown, a stable outdoor energy storage cabinet fire protection system described in one embodiment of the present invention includes a control module 1, a monitoring module 2 and an execution module 3 communicatively connected to the control module 1. The monitoring module 2 includes a temperature sensor 201 and a smoke sensor 202. Multiple temperature sensors 201 and smoke sensors 202 are provided. When at least two of the temperature sensors 201 and the smoke sensors 202 reach a monitoring threshold, the control module 1 controls the execution module 3 to extinguish the fire.

[0030] When the system is operating, multiple temperature sensors 201 and smoke sensors 202 are distributed in key locations of the energy storage cabinet 7. The accuracy of the sensors is selected according to the needs, and the temperature changes and smoke concentration inside the cabinet are continuously and uninterruptedly monitored. When the monitoring value of any sensor reaches the preset safety threshold, the system will immediately enter the early warning state, and the fire extinguishing operation will not be triggered at this time. When at least two sensors (such as a temperature sensor 201 and a smoke sensor 202, or two temperature sensors 201, or two smoke sensors 202) detect an abnormality at the same time and both reach or exceed their respective thresholds, the system confirms that a fire has occurred and immediately sends a fire extinguishing instruction to the execution module 3 through the control module 1, activates the fire extinguishing device 301, and extinguishes the fire inside the energy storage cabinet 7. After the fire extinguishing operation is completed, the control module 1 continues to monitor the internal state of the energy storage cabinet 7 to ensure that the fire is effectively controlled. In addition, the system records relevant data of this event, including the time of fire occurrence, fire extinguishing response time, fire extinguishing effect, etc., to provide a basis for subsequent analysis and improvement.

[0031] In this embodiment, through multi-sensor monitoring and composite judgment logic, multiple sensors monitor the environment at multiple locations in the energy storage cabinet 7, greatly improving the accuracy and reliability of fire identification. This effectively reduces the false alarm rate caused by single sensor failure or external interference, reduces unnecessary firefighting operations and wastes resources, and avoids damage to equipment within the energy storage cabinet 7 due to misoperation. Secondly, after confirming a fire, the system can respond quickly, immediately activating the fire extinguishing device 301. By precisely controlling the release of fire extinguishing agent, it can quickly and effectively extinguish the fire source within the energy storage cabinet 7, helping to minimize the scope of the fire in its early stages and maximizing the safety of the energy storage cabinet 7 and its surrounding facilities. Finally, the system also has data recording and analysis capabilities, capable of recording data from the entire process of fire warning, confirmation, and firefighting operations, providing users with operational feedback and reference information. This helps users understand the actual operating status and potential risks of the energy storage cabinet 7, supporting the subsequent optimization of safety management strategies.

[0032] The battery management system (BMS) consists of a battery management unit (BAU), a battery control unit (BCU), and a battery management unit (BMU). The battery pack is connected to the AC unit through a high-voltage power distribution unit (PDU).

[0033] like Figure 1 As shown, in a preferred embodiment, the control module 1 is communicatively connected to the alarm module 4. When the monitoring module 2 reaches a threshold, the control module 1 controls the alarm module 4 to issue an alarm.

[0034] During operation, when the temperature sensor 201 or smoke sensor 202 in the monitoring module 2 reaches its preset threshold, the control module 1 receives this signal. At this point, even if the combined conditions for triggering a fire extinguishing operation have not been met, the control module 1 immediately activates the alarm module 4. The alarm module 4 then emits a clear and loud alarm accompanied by a flashing light, or sends a remote alarm signal to a preset receiving end, such as a monitoring center or a manager's mobile phone, to alert relevant personnel to the potential fire risk in the energy storage cabinet 7.

[0035] In this embodiment, the provision of alarm module 4 enables the issuance of an alarm at the earliest possible stage of a fire, effectively increasing the rate of timely fire detection, preventing the spread of fire, and reducing property damage and casualties. Furthermore, the issuance of an alarm signal quickly attracts the attention of nearby personnel and management personnel, buying time for subsequent emergency response and firefighting operations. Furthermore, the remote alarm signal function ensures that fire information is promptly received and processed even in unmanned outdoor environments, thereby enhancing the intelligence and automation level of the entire fire protection system.

[0036] like Figure 1 、 Figure 4 and Figure 5 As shown, in a preferred embodiment, the execution module 3 includes a fire extinguishing device 301 .

[0037] Fire extinguishing devices 301 come in a variety of types to suit different scenarios and needs. They include the following:

[0038] Perfluorohexanone fire extinguishing device. Perfluorohexanone has the advantages of zero ozone depletion potential (ODP), low global warming potential (GWP), high electrical insulation, non-toxicity, and non-corrosiveness. It can quickly extinguish fires and effectively prevent the spread of fire without causing secondary damage to equipment. In energy storage cabinet 7, the perfluorohexanone fire extinguishing device can quickly suppress battery thermal runaway through precise spraying, ensuring the safe and stable operation of the energy storage facility.

[0039] Nitrogen fire extinguishing systems primarily release large amounts of nitrogen into enclosed spaces, reducing oxygen concentrations to below a safe level. Nitrogen is clean and non-toxic, ensuring effective fire extinguishing while preventing secondary damage to batteries. Nitrogen fire extinguishing systems are used for fire prevention and control in large-scale centralized energy storage facilities.

[0040] Aerosol fire extinguishers utilize an aerosol extinguishing agent composed of solid particles, a gaseous medium, and a small amount of liquid droplets. They are easy to install, require minimal space, and quickly generate a large amount of inert gas, reducing oxygen concentration while also creating a heat-absorbing effect to rapidly extinguish fires. Aerosol fire extinguishers are suitable for fire prevention and control within energy storage cabinets 7, quickly controlling fires and preventing them from spreading.

[0041] Each of the above fire extinguishing devices 301 has its own characteristics and is suitable for different types of energy storage cabinets 7 and fire scenarios. When selecting and applying, they should be selected and reasonably deployed according to the specific conditions of the energy storage cabinet 7 and fire safety requirements.

[0042] Preferably, the fire extinguishing device 301 is an aerosol fire extinguisher. Aerosol fire extinguishers are compact, lightweight, easy to install and deploy, and suitable for energy storage cabinets 7 of various specifications. The number and placement of aerosol fire extinguishers can be flexibly adjusted as needed. Furthermore, aerosol fire extinguishers are non-toxic, harmless, safe, and reliable. During the fire extinguishing process, they do not cause harm to the human body and prevent secondary damage to the equipment within the energy storage cabinet 7.

[0043] like Figure 5 As shown, in a preferred embodiment, the fire extinguishing device 301 is connected to the cooling air duct 702 in the energy storage cabinet 7 .

[0044] In the fire protection system of energy storage cabinet 7, when the fire extinguishing device 301 is triggered, the aerosol fire extinguisher rapidly activates and releases the fire extinguishing medium. The fire extinguishing medium enters the cooling duct 702 within the energy storage cabinet 7 through a pipe. The cooling duct 702, a crucial channel for heat exchange within the energy storage cabinet 7, is located between the battery modules, ensuring that the fire extinguishing medium is widely and evenly distributed throughout the energy storage cabinet 7. As the fire extinguishing medium flows, it quickly covers and penetrates the fire source and high-temperature areas, effectively suppressing the spread of the fire and reducing the temperature of the battery modules and the surrounding environment, thereby preventing further deterioration of the fire.

[0045] In this embodiment, by connecting the fire extinguishing device 301 with the cooling air duct 702 in the energy storage cabinet 7, the fire extinguishing efficiency and coverage of the fire protection system are significantly enhanced. First, through the guidance of the cooling air duct 702, the fire extinguishing medium can more accurately reach the fire source and high-temperature areas, achieving rapid fire extinguishing and cooling, effectively curbing the spread of fire. Second, the flow of the fire extinguishing medium within the air duct promotes the rapid dissipation of heat within the energy storage cabinet 7, helping to reduce the overall temperature and prevent chain reactions caused by overheating of the battery modules. In addition, the existing cooling system structure of the energy storage cabinet 7 is fully utilized, eliminating the need for additional complex fire extinguishing piping layout, reducing the cost and complexity of system modification.

[0046] like Figure 2 and Figure 3As shown, in a preferred embodiment, the execution module 3 includes a thyristor 302, which is provided on the line between the battery pack 701 and the AC converter (PCS), or on the line between the battery pack 701 and the powered device.

[0047] In the power transmission and distribution system, when the execution module 3 receives a control signal, the thyristor 302 it controls generates a corresponding action. The thyristor 302 on the line between the battery pack 701 and the AC converter controls the on / off flow of current based on the control signal, thereby controlling the input or output power of the battery pack 701. Similarly, the thyristor 302 on the line between the battery pack 701 and the powered device regulates the process of powering the powered device from the battery pack 701, ensuring stable output of current and voltage. In the event of a fire or the need to disconnect the power urgently, the thyristor 302 can quickly disconnect the circuit, preventing further current flow and protecting the circuit and equipment from damage.

[0048] In this embodiment, by providing a thyristor 302, rapid control of the current can be achieved, thereby improving the efficiency and stability of power transmission and distribution. During the power conversion process between the battery pack 701 and the AC adapter or the powered device, the thyristor 302 can adjust the current parameters according to actual needs to ensure efficient energy utilization and normal operation of the equipment. Secondly, the thyristor 302 has good overload protection and short-circuit protection functions, and can quickly cut off the power supply when an abnormality occurs in the circuit, effectively preventing equipment damage and safety accidents such as fire. In addition, the thyristor 302 also has the characteristics of fast response speed, high control accuracy, and good reliability. It can adapt to the complex and changing power transmission and distribution environment and improve the overall performance and safety of the system.

[0049] In a preferred embodiment, the temperature sensor 201 includes a first temperature sensor and a second temperature sensor. The first temperature sensor is disposed in the energy storage cabinet 7 , and the second temperature sensor is disposed in the battery pack 701 .

[0050] During operation, the first temperature sensor, located inside the energy storage cabinet 7, continuously monitors and records the ambient temperature within the cabinet 7. This temperature data is crucial for evaluating the overall heat dissipation performance of the cabinet 7 and preventing overheating. Simultaneously, the second temperature sensor, located within the battery pack 701 and attached to the electrodes of the battery cells, monitors the internal temperature of the battery pack 701 in real time during operation. Since batteries generate heat due to chemical reactions during operation, accurately monitoring changes in battery cell temperature is crucial for ensuring battery safety and optimizing charging and discharging strategies.

[0051] In this embodiment, by adopting a dual temperature sensor 201 layout (the first temperature sensor is located in the energy storage cabinet 7, and the second temperature sensor is located in the battery pack 701), the overall safety and performance stability of the energy storage system are significantly improved. Specifically, by real-time monitoring of the temperature inside the energy storage cabinet 7 and the battery pack 701, potential overheating risks can be promptly detected and warned, effectively preventing safety accidents such as fire or battery damage caused by excessive temperatures, and allowing the control module 1 to respond quickly and accurately. In addition, accurate temperature data also provides accurate data for optimizing the thermal management strategy of the energy storage system, allowing the system to automatically adjust the heat dissipation mode under different operating conditions to ensure that the battery operates within the optimal temperature range, thereby improving the battery's energy conversion efficiency and extending its service life.

[0052] In a preferred embodiment, the smoke sensors 202 are arranged at intervals in the energy storage cabinet 7 , and at least one smoke sensor 202 is arranged on the top of the energy storage cabinet 7 .

[0053] When the energy storage cabinet 7 is in operation, the smoke sensor 202, a critical safety monitoring device, operates continuously, continuously monitoring the gas conditions within the energy storage cabinet 7. Multiple, spaced-apart smoke sensors 202 form a multi-layered monitoring network, ensuring effective coverage of the entire energy storage cabinet 7. When combustion or smoke is generated within the energy storage cabinet 7, the smoke sensor 202 responds quickly, detecting smoke particles or specific gases produced by combustion through its built-in sensitive components. The smoke sensor 202 then immediately converts the detected smoke signal into an electrical signal and transmits it to the control module 1, triggering an alarm.

[0054] The installation of smoke sensors 202 at intervals within the energy storage cabinet 7 enhances the energy storage system's fire warning capabilities, improving the sensitivity and accuracy of smoke detection. Multiple monitoring points also enable comprehensive monitoring of the internal environment of the energy storage cabinet 7, effectively reducing missed and false alarm rates for fires. In the event of a fire, the smoke sensors 202 respond quickly, prompting the control module 1 to quickly issue an alarm, buying time for evacuation, fire fighting, and minimizing property damage, thereby enhancing the overall safety and reliability of the energy storage system.

[0055] like Figure 1 As shown, in a preferred embodiment, the control module 1 includes a communication module 5, which includes a local communication unit and a remote communication unit. The local communication unit is used to detect the data of the monitoring module 2 and control the operation of the execution module 3. The remote communication unit is used to transmit the local status to the adjacent energy storage cabinet 7 and to communicate with the host computer 6.

[0056] The remote communication unit includes wired communication devices and wireless communication devices.

[0057] During operation, the local communication unit establishes a connection with the monitoring module 2 via CAN or RS485, receiving real-time data from monitoring devices such as the temperature sensor 201 and the smoke sensor 202. The control module 1 parses and processes this data to assess the current status of the energy storage cabinet 7, such as whether the temperature is too high or whether smoke is being generated. Based on these assessment results, the local communication unit sends control instructions to the execution module 3, such as activating the fire extinguishing device 301 or adjusting the current of the thyristor 302, to ensure the safe and stable operation of the energy storage cabinet 7.

[0058] At the same time, the remote communication unit is also continuously operating. The wired communication device is connected to the adjacent energy storage cabinet 7 via a physical cable to achieve mutual transmission of status information. The communication is stable and reliable, and is suitable for scenarios with high communication quality requirements. That is, the adjacent energy storage cabinet 7 can record the status of the energy storage cabinet 7. When an alarm or fire occurs, the adjacent energy storage cabinet 7 will simultaneously send an alarm to the host computer 6, preventing the communication module 5 of the energy storage cabinet 7 from being damaged and unable to communicate normally with the host computer 6, and can also provide early warning. In addition, the fire extinguishing devices 301 between energy storage cabinets 7 that are relatively close to each other are interconnected, that is, they can assist in extinguishing fires in adjacent energy storage cabinets 7. The wireless communication device uses wireless signals (such as Wi-Fi, Zigbee, LoRa, etc.) to connect to a wider network, can maintain real-time communication with the host computer 6 (such as a central monitoring system), upload detailed operating data of the energy storage cabinet 7, and receive control instructions and scheduling information from the host computer 6.

[0059] In this embodiment, the provision of a local communication unit and a remote communication unit facilitates secure monitoring and intelligent management of the energy storage cabinet 7. The local communication unit ensures real-time acquisition of monitoring data and immediate transmission of execution instructions, effectively enhancing the autonomous control capabilities of the energy storage cabinet 7. The addition of the remote communication unit further broadens the information exchange channels of the energy storage cabinet 7, enabling connections with neighboring energy storage cabinets 7 and the host computer 6, enhancing the overall collaborative working capabilities of the energy storage system. It also facilitates remote monitoring and centralized management of each energy storage cabinet 7 via the host computer 6, significantly improving work efficiency and response speed. Furthermore, the remote communication unit includes both wired and wireless communication devices, and redundant communication enhances the reliability and stability of the communication system. In the event of wired communication obstruction or failure, wireless communication can quickly take over, ensuring continuous data transmission and timely instruction delivery. Conversely, this backup communication method effectively reduces the risk of communication interruption, providing a solid guarantee for the continued safe operation of the energy storage cabinet 7.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A stable outdoor energy storage cabinet fire protection system, characterized in that: It includes a control module, a monitoring module and an execution module that are communicatively connected to the control module. The execution module includes a fire extinguishing device that is connected to the cooling air duct of the energy storage cabinet.

2. According to claim 1, a stable outdoor energy storage cabinet fire protection system is characterized in that: The control module is communicatively connected to an alarm module. When the monitoring module reaches a threshold, the control module controls the alarm module to sound an alarm.

3. According to claim 1, a stable outdoor energy storage cabinet fire protection system is characterized in that: The fire extinguishing device is an aerosol fire extinguisher.

4. The outdoor energy storage cabinet fire protection system with stable performance according to claim 1, characterized in that: The execution module includes a thyristor, which is arranged on the line between the battery pack and the AC adapter, or on the line between the battery pack and the powered device.

5. A stable outdoor energy storage cabinet fire protection system according to any one of claims 1-4, characterized in that: The monitoring module includes multiple fire sensors, and multiple of the multiple fire sensors are distributed in the energy storage cabinet. When at least two fire sensors reach a monitoring threshold, the control module controls the execution module to extinguish the fire.

6. The outdoor energy storage cabinet fire protection system with stable performance according to claim 5, characterized in that: The fire protection sensor includes a temperature sensor and a smoke sensor.

7. The outdoor energy storage cabinet fire protection system with stable performance according to claim 6, characterized in that: The temperature sensor includes a first temperature sensor and a second temperature sensor, the first temperature sensor is arranged in the energy storage cabinet, and the second temperature sensor is arranged in the battery pack.

8. The outdoor energy storage cabinet fire protection system with stable performance according to claim 6, characterized in that: The smoke sensors are arranged at intervals in the energy storage cabinet, and at least one smoke sensor is arranged on the top of the energy storage cabinet.

9. The outdoor energy storage cabinet fire protection system with stable performance according to claim 1, characterized in that: The control module includes a communication module, which includes a local communication unit and a remote communication unit. The local communication unit is used to detect the data of the monitoring module and control the operation of the execution module. The remote communication unit is used to transmit the local status to the adjacent energy storage cabinet and to communicate with the host computer.

10. The outdoor energy storage cabinet fire protection system according to claim 9, characterized in that: The remote communication unit includes a wired communication device and a wireless communication device.

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