Train storage battery fire extinguishing system
By setting up a fire monitoring module, gas sensor and temperature-sensitive magnetic power generation device in the train battery box, automatic monitoring and timely extinguishing of fires is achieved, and the problem of lack of active fire extinguishing systems for train batteries is solved, ensuring the safety of trains.
Patent Information
- Application Number
- CN202421938553.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The train battery lacks an active fire extinguishing system, which poses a fire safety hazard. The widening of the fire may endanger the safety of the train.
A fire monitoring module, a comprehensive gas sensor, a temperature sensor and a temperature magnetic power generation device are installed in the battery box. The temperature and gas concentration are monitored through the temperature sensor cable, a fire monitoring module and a comprehensive gas sensor. The temperature sensor magnetic power generation device monitors the temperature in a powerless state. After receiving the signal, the fire controller starts the fire extinguishing agent spray to achieve automatic fire extinguishing.
The timely extinguishment of train battery fires has been achieved, ensuring the safety of battery use, avoiding the expansion of fire, and filling the gap in the battery fire extinguishing system.
Smart Images
Figure CN223208859U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of rail vehicle battery fire extinguishing systems, in particular to a train battery fire extinguishing system. Background Art
[0002] With the development of battery technology, the capacity and power of train batteries are increasing. With the application of fast-charging technology and new battery types such as lithium batteries, the fire safety risks of batteries cannot be ignored. Currently, there are only structural and material fire prevention designs for high-power batteries, but there is a lack of active fire extinguishing systems. Utility Model Content
[0003] The utility model aims to solve the problem that train batteries have no fire extinguishing system and there are safety hazards, and thus provides a train battery fire extinguishing system and fire extinguishing method. When a fire hazard occurs in the battery box, an alarm is triggered immediately and the fire extinguishing equipment is started to extinguish the fire, eliminating the fire in the bud and avoiding the risk of the fire spreading and endangering the safety of the train.
[0004] In order to achieve the above-mentioned purpose of the utility model, the utility model provides a train battery fire extinguishing system, which is arranged inside the battery box shell, the battery box is provided with a battery compartment and a battery control module, the battery is installed in the battery compartment, and includes a fire monitoring module, an integrated gas sensor, a fire controller, a fire extinguisher storage container, a fire extinguishing agent, a pipeline assembly, a display control screen, a temperature sensing cable and a temperature sensing magnetic power generation device; the bottom of the battery is closely attached to the battery bottom plate. The fire monitoring module is installed on the battery control module, the temperature sensing magnetic power generation device is arranged at the four corners above the battery box, and the integrated gas sensor is arranged above the middle wiring area of the battery; the fire extinguisher storage container is arranged around the battery module to various areas in the fire extinguisher box through connecting pipelines, the fire extinguishing agent is integrated on the fire extinguisher storage container, and the pipeline assembly includes pipelines and nozzles; the temperature sensing cable, fire monitoring module, integrated gas sensor and temperature sensing magnetic power generation device are all connected to the fire controller; the display control screen, the fire controller, the fire extinguisher storage container and the spray pipeline are connected in sequence;
[0005] The fire extinguishing agent storage container is used to store fire extinguishing agent. Under normal circumstances, the fire extinguishing agent storage container is pressure-free. The fire extinguishing agent storage container is equipped with an electric initiator. When a fire signal is received, the resistance wire in the electric initiator heats up, igniting the initiation device outside the resistance wire, causing its temperature to rise rapidly to about 600°C, thereby igniting the aerosol. The gas generated by the combustion of the aerosol enters the interior of the fire extinguishing agent storage container, increasing the internal pressure. Under the action of the pressure difference, the explosion vent located at the outlet is opened, and the fire extinguishing agent in the fire extinguishing agent storage container enters the pipeline and is sprayed out from the nozzle.
[0006] The temperature sensing cable is used to monitor the temperature at the bottom of the battery. When the temperature exceeds the set value, the cable will be connected and a trigger signal will be transmitted to the fire controller. The temperature sensing cable has a fault detection function. When the internal cable is damaged or a short circuit occurs internally, a fault signal will be sent to the fire controller to facilitate inspection by inspectors.
[0007] The integrated gas sensor is used to monitor the concentration of smoke and fire dust in the air, and transmits a trigger signal to the fire controller when it exceeds the set concentration;
[0008] The battery control module is used to monitor the internal temperature of the battery and send the temperature information to the fire monitoring module. The fire monitoring module is used to receive the battery temperature information sent by the battery control module and determine whether the battery temperature exceeds the set temperature and the duration exceeds the set time. If the temperature exceeds the set time, an alarm signal is sent to the fire monitoring module.
[0009] The temperature-sensitive magnetic generator is used to monitor the battery temperature in the off-state. When the temperature rises to a threshold, the internal thermal element of the temperature-sensitive magnetic generator is deformed, and the internal magnet passes through the induction coil to generate current, which directly triggers the electric initiator in the fire extinguishing agent storage container.
[0010] When the fire controller receives a trigger signal, it starts the countdown to prepare to start the fire extinguisher storage container, and at the same time sends a fire extinguishing countdown start signal to the display control panel. The display screen is used to display the fire extinguishing system status information and start status. When the display screen receives the fire extinguishing countdown start signal, the staff determines whether to send a stop start instruction to the fire controller; at the end of the countdown, the fire controller does not receive the stop start instruction, the fire extinguisher storage container starts, generates pressure, pushes the fire extinguishing agent into the injection pipeline and sprays it into the battery box.
[0011] This utility model provides a battery fire extinguishing system. Its fire monitoring module, integrated gas sensor, temperature-sensing cable, and temperature-sensing magnetic generator automatically monitor fires and send signals, extinguishing the fire promptly and ensuring battery safety. This utility model fills a gap in battery fire extinguishing systems. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the structure of the fire extinguishing system of the utility model;
[0013] Figure 2 This is the control structure diagram of the fire extinguishing system;
[0014] Figure 3 This is the control logic diagram of the fire extinguishing system;
[0015] Among them: 1. Battery compartment; 2. Fire control box; 3. Battery control module; 4. Fire monitoring module; 5. Integrated gas sensor; 6. Fire controller; 7. Fire extinguisher storage container; 8. Fire extinguishing agent; 9. Pipeline assembly; 10. Display control panel; 11. Temperature sensing cable; 12. Temperature sensing magnetic generator. DETAILED DESCRIPTION
[0016] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of a train battery fire extinguishing system of the present invention in conjunction with the accompanying drawings.
[0017] Reference Figure 1 and Figure 2 The battery box contains a battery compartment 1, a fire control box 2, and a battery control module 3. The battery compartment 1 contains batteries. The battery fire extinguishing system includes a fire monitoring module 4, an integrated gas sensor 5, a fire controller 6, a fire extinguisher storage container 7, a fire extinguishing agent 8, a piping assembly 9, a display control panel 10, a temperature-sensing cable 11, and a temperature-sensing magnetic generator 12.
[0018] The entire fire extinguishing system is housed within the battery box housing. A temperature-sensing cable 11 is installed at the bottom of the battery, close to the battery floor. A fire monitoring module 4 is mounted on the battery control module. Temperature-sensing magnetic generators 12 are located at the four corners above the battery box, and an integrated gas sensor 5 is located above the central wiring area of the battery. Fire extinguisher storage containers 7 are connected to the battery module via connecting pipes and are routed to various areas within the fire extinguisher box. Fire extinguishing agent 8 is integrated into the fire extinguisher storage container 7. The piping assembly 9 includes pipes and nozzles for transporting the fire extinguishing agent, while the nozzles are used to spray the agent over a wider area. The temperature-sensing cable 11, fire monitoring module 4, integrated gas sensor 5, and temperature-sensing magnetic generator 12 are all connected to the fire controller 6. The display control panel 10, fire controller 6, fire extinguisher storage container 7, and piping assembly 9 are connected in sequence.
[0019] The fire extinguishing agent storage container 7 is used to store fire extinguishing agent. It is stored in a pressure-free state under normal circumstances. When a fire signal is received, the resistance wire in the electric initiator heats up and ignites the initiation device outside the resistance wire, causing its temperature to rise rapidly to about 600°C, thereby igniting the aerosol. The gas generated by the combustion of the aerosol enters the interior of the fire extinguishing agent storage container, increasing the internal pressure. Under the action of the pressure difference, the explosion relief plate located at the outlet is opened, and the fire extinguishing agent inside the fire extinguishing agent storage container enters the pipeline and is sprayed out from the nozzle. After the fire extinguishing agent storage container 7 starts to spray the fire extinguishing agent, even if the power is cut off, it will not affect the subsequent continuous release of the fire extinguishing agent. A liquid level feedback device is set in the fire extinguishing agent storage container 7, and the circuit is turned on and off by the liquid level height. Before the liquid level reaches the set value, the circuit is in the on state. As the liquid level drops to the alarm threshold, the circuit is disconnected and a liquid level alarm signal is sent to the controller.
[0020] Reference Figures 1 to 3 The display control panel 10 is connected to the fire controller 6 via a cable. The fire monitoring module 4 is connected to the fire controller 6 via a cable. The battery control module monitors the internal battery temperature and transmits this temperature information to the fire monitoring module 4. The fire monitoring module 4 receives the battery temperature information from the battery control module and determines whether it exceeds a set battery temperature and persists for a set time. If so, it sends an alarm signal to the fire controller 6. The integrated gas sensor 5 monitors changes in airborne gases such as smoke and fire dust, ensuring rapid detection of gas signals generated by fires within the battery compartment. It transmits a trigger signal to the fire controller 6 when the concentration exceeds a set value. The temperature-sensing cable 11 monitors changes in the battery bottom temperature. When the temperature exceeds a set value, the cable conducts, transmitting a trigger signal to the fire controller 6. The temperature-sensing cable 11 has a fault detection function. If the internal cable is damaged or a circuit is broken, it will send a fault signal to the controller, facilitating inspection. The temperature-sensing magnetic generator 12 monitors the battery temperature in the off-state and transmits a trigger signal to the fire controller 6 when the set off-state temperature is exceeded.
[0021] The trigger signal is transmitted to the fire controller 6 under the following conditions: the integrated gas sensor 5 is triggered when it detects that the set concentration of smoke and fire dust is 100ppm. The fire monitoring module 4 monitors the temperature of the battery module and triggers the alarm when the internal temperature is greater than the set internal temperature of 65°C for more than 10 seconds. The temperature setting value of the temperature sensing cable 11 is 90°C. When it is greater than the set temperature, the temperature sensing cable will be triggered. The temperature sensing magnetic power generation device 12 sets the power-off state temperature to 80°C and will be triggered when it is greater than the set power-off state temperature. Through the above four-fold protection, the fire extinguishing equipment will be activated after any triggering. The temperature sensing magnetic power generation device 12 is used to monitor the temperature of the battery in the power-off state. When the temperature rises to the threshold, the internal thermistor of the temperature sensing magnetic power generation device is deformed, and the internal magnet passes through the induction coil to generate current. The current directly triggers the electric initiator in the fire extinguishing agent storage container 7, thereby realizing non-electrical fire extinguishing.
[0022] When the fire controller 2 receives the trigger signal, it starts the countdown to prepare to start the fire extinguisher storage container 7, and at the same time sends a fire extinguishing countdown start signal to the display control screen 10. The display control screen 10 is used to display the fire extinguishing system status information and start status. When the display screen receives the fire extinguishing countdown start signal, the staff switches the camera to view the internal status of the battery box and determines whether to send a stop start instruction to the fire controller 6. When the countdown ends and the fire controller 6 does not receive the stop start instruction, the fire extinguisher storage container starts, generates pressure, pushes the fire extinguishing agent into the injection pipeline and sprays it into the battery box to prevent the occurrence of fire.
Claims
1. A train battery fire extinguishing system, wherein the battery fire extinguishing system is arranged inside a battery box housing, wherein a battery compartment (1) and a battery control module (3) are provided in the battery box, and a battery is installed in the battery compartment (1), characterized in that: The invention comprises a fire monitoring module (4), an integrated gas sensor (5), a fire controller (6), a fire extinguishing agent storage container (7), a fire extinguishing agent (8), a pipeline assembly (9), a display control panel (10), a temperature sensing cable (11) and a temperature sensing magnetic power generation device (12); the temperature sensing cable (11) is arranged on the bottom of the battery close to the battery bottom plate, the fire monitoring module (4) is installed on the battery control module (3), the temperature sensing magnetic power generation device (12) is arranged at the four corners above the battery box, and the temperature sensing magnetic power generation device (12) is arranged above the wiring area in the middle of the battery. A comprehensive gas sensor (5); a fire extinguishing agent storage container (7) is arranged around the battery module to various areas in the fire extinguisher box through a connecting pipeline; the fire extinguishing agent (8) is integrated on the fire extinguishing agent storage container (7); the pipeline assembly (9) includes a pipeline and a nozzle; the temperature sensing cable (11), the fire monitoring module (4), the comprehensive gas sensor (5) and the temperature sensing magnetic power generation device (12) are all connected to the fire controller (6); the display control panel (10), the fire controller (6), the fire extinguishing agent storage container (7) and the injection pipeline are connected in sequence; The fire extinguishing agent storage container (7) is used to store fire extinguishing agent. Under normal conditions, the fire extinguishing agent storage container (7) is pressure-free. The fire extinguishing agent storage container (7) is provided with an electric initiator. When a fire signal is received, a resistance wire in the electric initiator heats up, igniting an initiation device outside the resistance wire, causing its temperature to rise rapidly to 600° C., thereby igniting the aerosol. Gas generated after the aerosol burns enters the interior of the fire extinguishing agent storage container, increasing the internal pressure. Under the action of the pressure difference, the explosion relief disc at the outlet is opened, and the fire extinguishing agent in the fire extinguishing agent storage container enters the pipeline and is sprayed out from the nozzle. The temperature sensing cable (11) is used to monitor the temperature of the bottom of the battery. When the temperature exceeds the set value, the cable is turned on and a trigger signal is transmitted to the fire controller (6). The temperature sensing cable (11) has a fault detection function. When the internal cable is damaged or a circuit is broken, a fault signal is sent to the fire controller to facilitate inspection by inspectors. The integrated gas sensor (5) is used to monitor the concentration of smoke and fire dust in the air, and transmits a trigger signal to the fire controller (6) when it is determined that the concentration exceeds a set value; The battery control module (3) is used to monitor the internal temperature of the battery and send the temperature information to the fire monitoring module (4). The fire monitoring module (4) is used to receive the battery temperature information sent by the battery control module (3) and determine whether the battery temperature exceeds a set value and the duration exceeds a set time. If the temperature exceeds a set value, an alarm signal is sent to the fire monitoring module (4). The temperature-sensitive magnetic power generation device (12) is used to monitor the temperature of the battery in a non-powered state. When the temperature rises to a threshold value, the internal heat-sensitive element of the temperature-sensitive magnetic power generation device is deformed, and the internal magnet passes through the induction coil to generate current, which directly triggers the electric initiator in the fire extinguishing agent storage container (7); The fire controller (6) is used to start the countdown and prepare to start the fire extinguishing agent storage container (7) when receiving the trigger signal, and at the same time send a fire extinguishing start countdown signal to the display control screen (10). The display screen is used to display the fire extinguishing system status information and the start status. When the display screen receives the fire extinguishing start countdown signal, the staff determines whether to send a stop start instruction to the fire controller (6); when the countdown ends and the fire controller (6) does not receive the stop start instruction, the fire extinguishing agent storage container (7) is started, and pressure is generated to push the fire extinguishing agent (8) into the injection pipeline and sprayed into the battery box.