Five-dimensional closed-loop prevention and control method for new energy storage station

Abstract

The invention belongs to the technical field of fire fighting systems, and particularly relates to a five-dimensional closed-loop prevention and control method for a new energy storage station, which comprises the following steps of: A, monitoring environmental parameters in a storage battery box and voltage, current and resistance information of each sensor, and obtaining data before and after different times through multiple times of information feedback at different times; b, according to the monitoring information and the historical state information of the battery cluster, performing intelligent decision making through multi-parameter coupling analysis; c, if the temperature of the battery box is higher than 40 DEG C, starting a heat exchange part for cooling; and D, if thermal runaway occurs, an active cooling assembly is started for cooling and fire extinguishing. According to the five-dimensional closed-loop prevention and control method for the new energy power storage station, different schemes are used for coping with different dangerous cases, intelligent decision making is carried out through fire-fighting big data, the response is faster, the fire extinguishing efficiency is better, and the safety guarantee of personnel is better.

Description

Technical Field

[0001] The present invention belongs to the technical field of fire protection systems, and particularly relates to a five-dimensional closed-loop prevention and control method for new energy storage power stations. Background Art

[0002] Suppression and extinguishing systems use fire extinguishing agents or inhibitors that are liquid at normal temperature and normal / low pressure, including perfluorohexanone, heptafluoropropane, 1-bromo-3,3,3-trifluoropropene (BTP), fine water mist-based water system fire extinguishing inhibitors, composite fire extinguishing agents, etc.

[0003] At different stages of thermal runaway, different cooling mechanisms are activated for temperature reduction and cooling treatment; thermal runaway is suppressed during the occurrence of thermal runaway; and fire extinguishing is carried out in the initial stage of the fire. In the case of waste gas escape, it indicates that the battery management system may not be able to timely turn off the battery power supply, or may not be able to effectively prevent the temperature of the damaged battery from continuing to rise to the thermal runaway point. To solve the above existing problems, this solution was thus developed. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a five-dimensional closed-loop prevention and control method for new energy storage power stations, which can effectively control thermal failure.

[0005] To solve the above technical problem, the technical solution adopted by the present invention is: a five-dimensional closed-loop prevention and control method for new energy storage power stations, including the following steps: A. Monitor the environmental parameters inside the battery storage box and the voltage, current, and resistance information of each sensor, and obtain the front and back data at different times through information feedback at multiple different times; B. Based on the monitoring information and the historical state information of the battery cluster, perform intelligent decision-making through multi-parameter coupling analysis; C. If the temperature of the battery box is higher than 40 degrees Celsius, start the heat exchange component for temperature reduction; D. When thermal runaway occurs, start the active cooling component for cooling and extinguishing; D1. When thermal runaway is about to occur, start the cluster-level cooling plan; D2. In the early stage of thermal runaway, start the compartment-level cooling plan, cut off the power supply, release the first inhibitor from the battery box to suppress thermal runaway, and release inhibitors around the battery cluster to form a partition wall; D3. During the occurrence of thermal runaway, release the second inhibitor to suppress thermal runaway; D4. In the initial stage of the fire, release the first fire extinguishing agent for fire extinguishing. While releasing the first fire extinguishing agent for fire extinguishing, start the sound and light alarm and the fan to operate, and send a signal to the municipal fire protection facilities. If it is found that the fire cannot be suppressed and extinguished, release the second fire extinguishing agent for fire extinguishing. After the fire extinguishing is successful and a second thermal runaway occurs, release the third fire extinguishing agent for fire extinguishing; In step D2, the device for releasing inhibitors around the battery cluster to form a partition wall includes an inhibitor double delivery pipe, a mobile rack, a spraying assembly, and a recovery assembly. The inhibitor double delivery pipe extends and is placed on top of the battery cluster. The mobile rack is movably placed on the inhibitor double delivery pipe. The spraying assembly is installed on the mobile rack. The inhibitor double delivery pipe is respectively provided with first one-way valves connected to the spraying assembly at positions corresponding to the top of the battery cluster. The spraying assembly is provided with second one-way valves communicating with the first one-way valves in a lifting manner. The recovery assembly is communicated with the spraying assembly through a transmission pipe, and a driving winding wheel for winding the transmission pipe is installed on the mobile rack. Partition components are movably installed around the battery box. The partition components are located between adjacent battery boxes. The partition components include a moving plate, a fireproof partition board, and a horizontal drive. The moving plate is movably installed between adjacent battery boxes. The moving plate is provided with a slot. The fireproof partition board is inserted into the slot. The horizontal drive is installed underground and is drivingly connected to the moving plate. The fireproof partition board is provided with a wind guiding flow channel, and a plurality of through holes communicating with the wind guiding flow channel are evenly opened on both symmetrical sides of the fireproof partition board. A transmission pipe communicating with the wind guiding flow channel is provided at the bottom of the moving plate. The transmission pipe is communicated with an external fan.

[0006] The environmental parameters in step A include temperature information, gas composition information, and pressure information. The devices used for monitoring include a temperature sensor, an optical smoke sensor, a hydrogen gas sensor, a carbon monoxide smoke sensor, a pressure sensor, and an electrolyte leakage monitoring sensor. The temperature sensor, the optical smoke sensor, the hydrogen gas sensor, the carbon monoxide smoke sensor, the pressure sensor, and the electrolyte leakage monitoring sensor are installed inside the battery box.

[0007] In step B, the data integration and transmission are placed in the control system. Through the calculation of the control system and in combination with the fire protection big data platform, data analysis, intelligent early warning, and potential hazard investigation are carried out, and intelligent decisions are made.

[0008] In step C, when the battery temperature is higher than 40 degrees Celsius, liquid cooling is started. A liquid cooling plate is provided on the inner bottom plate of the battery box, and a liquid cooling control unit and a liquid cooling unit are provided on the battery box panel to control the battery temperature to be kept less than 40 degrees Celsius.

[0009] In step D1, when thermal runaway is about to occur, air cooling and liquid cooling are started. The air cooling is to fix the fan behind the battery cluster, adopt a direct drive high-power fan group, and intelligent electric control. The liquid cooling is to set up a liquid circulation cooling flow channel inside the battery cluster, and through a heat exchanger, a compressor, and a condenser, the temperature of the battery box is reduced.

[0010] In step D2, at the early stage of thermal runaway, air cooling and fine water mist cooling are started. The fine water mist cooling is to set fine water mist nozzles at the top inside the battery box, and release a fine water mist type water-based fire extinguishing inhibitor through the fine water mist nozzles.

[0011] The spraying assembly includes a fixing frame and four groups of nozzles. The fixing frame is fixedly installed on the moving frame. The four groups of nozzles are respectively installed on the four sides of the fixing frame. The four groups of nozzles are communicated with a main pipeline. The main pipeline is communicated with a second one-way valve. An elevating cylinder for driving the second one-way valve to lift is installed on the fixing frame.

[0012] The recovery assembly includes a connecting frame. The connecting frame is connected to the recovery assembly through a pulling rope, and the pulling rope is wound around a driving winding wheel. A recovery tank is installed at the position corresponding to the output of the spraying assembly. A transfer pump is installed on one side of the recovery tank. The transfer pump is communicated with a transfer pipe.

[0013] A driving wheel is installed on the moving end of the moving frame. A fiber groove matching the pipe diameter of the inhibitor double delivery pipe is provided on the outer diameter of the driving wheel. A driving motor for driving the driving wheel to rotate is installed on the moving frame.

[0014] A heat dissipation flow channel is provided in the air guiding flow channel. An air outlet communicated with the heat dissipation flow channel is provided at the top of the fire-resistant partition board. A shielding board is provided on the fire-resistant partition board. An air guiding pipe communicated with the heat dissipation flow channel is provided at the bottom of the moving plate. The air guiding pipe is communicated with a centrifugal fan.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. A five-dimensional closed-loop prevention and control method for a new energy storage power station according to the present invention. This method uses different solutions to deal with different emergencies respectively, makes intelligent decisions through fire protection big data, has a faster response, better fire extinguishing efficiency, and better safety guarantee for personnel.

[0016] 2. A five-dimensional closed-loop prevention and control method for a new energy storage power station according to the present invention. Through the liquid cooling control unit and the liquid cooling unit on the liquid cooling plate and the battery box panel, circulating heat exchange is carried out through the internally flowing liquid to realize real-time adjustment of the battery temperature and better protect the battery system.

[0017] 3. The present invention provides a five-dimensional closed-loop prevention and control method for a new energy storage power station. When a battery box without thermal runaway is operating normally, cold air is transmitted through an external fan in cooperation with a conduction pipe, so that the cold air enters the air guide channel and is blown out through a plurality of through holes, thereby cooling the battery box. The fire-resistant partition board can isolate adjacent battery boxes. When thermal runaway occurs, a device for releasing inhibitors around the battery cluster to form a partition wall is started, and at the same time, a horizontal driver drives the moving plate to drive the fire-resistant partition board to move toward the battery box with thermal runaway, so as to be placed on the outside of the inhibitor holding isolation wall, and cooperates with the air outlet of a plurality of through holes to blow the inhibitor of the inhibitor holding isolation wall toward the battery box to suppress thermal runaway. The fire-resistant partition board can also continuously blow air to adjacent battery boxes to prevent the heat energy generated by the battery box with thermal runaway from affecting the adjacent battery boxes, thereby further providing protection.

[0018] 4. The present invention provides a five-dimensional closed-loop prevention and control method for a new energy storage power station, including a temperature sensor, an optical smoke sensor, a hydrogen gas sensor, a carbon monoxide smoke sensor, a pressure sensor and an electrolyte leakage monitoring sensor. Multiple sensors are built into the battery box to collect environmental data and collect voltage, current, resistance and other signals transmitted by the battery box control panel, and transmit them to the control system. The processor puts the collected data into the "database" in the ROM for analysis, judgment and processing; performs graded early warning and alarm according to the characteristics of different stages of thermal runaway of lithium-ion batteries, and realizes early perception, intelligent judgment, early warning and fire alarm capabilities; when a fire occurs, the lithium battery box fire suppression device can be automatically started to extinguish and suppress the fire, and at the same time, it can communicate, display and link with the battery box control panel or the vehicle CAN.

[0019] 5. The present invention provides a five-dimensional closed-loop prevention and control method for a new energy storage power station. In the early stage of thermal runaway of a battery cluster, the mobile frame is moved and placed above the battery cluster, the first one-way valve is docked with the second one-way valve, and then the active winding wheel drives the lowering of the transmission pipe, while the recovery component is lowered and placed on the ground in the battery box, so that the battery cluster with thermal runaway is placed in the recovery component, and then the spray component sprays the inhibitor to cover the battery cluster, and the recovery component recovers the inhibitor, so that the inhibitor continues to descend to form an isolation wall, thereby preventing the battery cluster with thermal runaway from affecting the adjacent battery cluster, and further preventing the trend of thermal runaway.

[0020] 6. The five - dimensional closed - loop prevention and control method of a new - energy storage power station according to the present invention. The heat generated by the battery box rises to the top, so the air at the top is relatively hot. If heat dissipation is not carried out at this time, the top of the battery box is prone to thermal runaway. Therefore, a centrifugal fan is used in cooperation with a duct to make the hot air enter from the air outlet, move along the heat - dissipation channel and be discharged, thereby dissipating heat from the top and preventing the top of the battery box from being prone to thermal runaway. And a baffle is set to prevent water spray or inhibitor from entering the heat - dissipation channel. And when thermal runaway occurs, the impeller of the centrifugal fan rotates counter - clockwise to supply air. In cooperation with the duct and the heat - dissipation channel, the air is output through the air outlet. Due to the blockage of the baffle, the blown air moves horizontally, thereby forming an air curtain at the top of the battery box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic flow chart of the five - dimensional closed - loop prevention and control method of the present invention; Figure 2 It is a schematic flow chart of the monitoring and early warning of the present invention; Figure 3 It is a schematic flow chart of the intelligent decision - making of the present invention; Figure 4 It is a schematic diagram of the active - safety method of the present invention; Figure 5 It is a schematic diagram of the passive - safety method of the present invention; Figure 6 It is a schematic diagram of the fire - safety method of the present invention; Figure 7 It is a schematic position - structure diagram of the device for forming a partition wall and the partition component of the present invention; Figure 8 It is a schematic structure diagram of the device for forming a partition wall of the present invention; Figure 9 It is a schematic structure diagram of the descent of the recovery component of the present invention; Figure 10 It is a schematic structure diagram of the partition component of the present invention; Figure 11 It is a schematic structure diagram of another perspective of the partition component of the present invention; Figure 12 It is a schematic sectional structure diagram of the fire - resistant partition board of the present invention; Figure 13 It is an enlarged schematic structure diagram of the A - place of the sectional view of the fire - resistant partition board of the present invention.

[0022] Markings in the figure: 1. Double conveying pipes of inhibitor; 2. Moving frame; 201. Driving wheel; 202. Driving motor; 3. Injection assembly; 301. Fixed frame; 302. Nozzle; 303. Lifting cylinder; 4. Recovery assembly; 401. Connecting frame; 402. Recovery tank; 403. Transmission pump; 5. First one-way valve; 6. Second one-way valve; 7. Transmission pipe; 8. Active winding wheel; 9. Partition assembly; 901. Moving plate; 902. Fire-resistant partition plate; 903. Horizontal drive; 904. Slot; 905. Air guide channel; 906. Through hole; 907. Conducting pipe; 908. Heat dissipation channel; 909. Shielding plate; 9010. Air guide duct; 9011. Centrifugal fan. DETAILED DESCRIPTION

[0023] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below with reference to the accompanying drawings for detailed description as follows.

[0024] like Figures 1 - 13 As shown, this embodiment provides a five-dimensional closed-loop prevention and control method for a new energy storage power station, including the following steps: A. Monitor the environmental parameters in the battery box and the voltage, current and resistance information of each sensor, and obtain the data before and after different times through multiple information feedback at different times; specifically, the environmental parameters in step A include temperature information, gas composition information and pressure information, and the monitoring equipment includes components including temperature sensors, optical smoke sensors, hydrogen gas sensors, carbon monoxide smoke sensors, pressure sensors and electrolyte leakage monitoring sensors, and the temperature sensors, optical smoke sensors, hydrogen gas sensors, carbon monoxide smoke sensors, pressure sensors and electrolyte leakage monitoring sensors are installed inside the battery box. Temperature sensor, optical smoke sensor, hydrogen gas sensor, carbon monoxide smoke sensor, pressure sensor and electrolyte leakage monitoring sensor. Multiple sensors are built into the battery box to collect environmental data and collect voltage, current, resistance and other signals transmitted by the battery box control panel, and transmit them to the control system. The processor puts the collected data into the "database" in the ROM for analysis, judgment and processing; it performs graded early warning and alarm according to the characteristics of different stages of thermal runaway of lithium-ion batteries, realizing early perception, intelligent judgment, early warning and fire alarm capabilities; when a fire occurs, the lithium battery box fire suppression device can be automatically started to extinguish and suppress the fire, and it can also communicate, display and link with the battery box control panel or the vehicle CAN.

[0025] B. Based on the monitoring information and the historical status information of the battery cluster, multi-parameter coupling analysis is used to make intelligent decisions; specifically, in step B, the data integration and transmission is placed in the control system, and the control system is combined with the fire big data platform to perform data analysis, intelligent early warning and hidden danger inspection, and make intelligent decisions. The control system includes EMS and BMS.

[0026] C. If the battery box is higher than 40 °C, start the heat exchange component to cool down; specifically, in step C, when the battery temperature is higher than 40 °C, start liquid cooling. There is a liquid cooling plate on the inner bottom plate of the battery box, and a liquid cooling control unit and a liquid cooling unit are provided on the battery box panel to control the battery temperature to be kept less than 40 °C.

[0027] D. If thermal runaway occurs, start the active cooling component to cool and extinguish the fire; D1. When thermal runaway is about to occur, start the cluster-level cooling scheme; specifically, in step D1, when thermal runaway is about to occur, start air cooling and liquid cooling. For air cooling, fix the fan behind the battery cluster, use a direct-drive high-power fan group, and intelligent electric control. For liquid cooling, set up a liquid circulation cooling flow path inside the battery cluster, and reduce the temperature of the battery box through a heat exchanger, a compressor, and a condenser.

[0028] D2. In the early stage of thermal runaway, start the cabin-level cooling scheme, cut off the power supply, release the first inhibitor from the battery box to suppress thermal runaway, and release the inhibitor around the battery cluster to form a partition wall; specifically, in step D2, in the early stage of thermal runaway, start air cooling and fine water mist cooling. The fine water mist cooling is to set fine water mist nozzles 302 at the top inside the battery box, and release the fine water mist type water-based fire extinguishing inhibitor through the fine water mist nozzles 302.

[0029] D3. During the occurrence period of thermal runaway, release the second inhibitor to suppress thermal runaway; D4. In the initial stage of the fire, release the first fire extinguishing agent to extinguish the fire. While releasing the first fire extinguishing agent to extinguish the fire, start the sound and light alarm and the fan to operate, and send a signal to the municipal fire protection facilities. If it is found that the fire cannot be suppressed, release the second fire extinguishing agent to extinguish the fire. After the fire is successfully extinguished, if a second thermal runaway occurs, release the third fire extinguishing agent to extinguish the fire; In step D2, the device for releasing an inhibitor around the battery cluster to form a partition wall includes an inhibitor double delivery pipe 1, a moving frame 2, a spraying assembly 3, and a recovery assembly 4. The inhibitor double delivery pipe 1 extends and is placed on the top of the battery cluster. The moving frame 2 is movably placed on the inhibitor double delivery pipe 1. A driving wheel 201 is installed on the moving end of the moving frame 2. A fiber groove matching the pipe diameter of the inhibitor double delivery pipe 1 is provided on the outer diameter of the driving wheel 201. A driving motor 202 for driving the driving wheel 201 to rotate is installed on the moving frame 2. The spraying assembly 3 is installed on the moving frame 2. First one-way valves 5 connected to the spraying assembly 3 are respectively provided at positions corresponding to the top of the battery cluster on the inhibitor double delivery pipe 1. A second one-way valve 6 communicating with the first one-way valve 5 is provided for the up-and-down movement of the spraying assembly 3. The recovery assembly 4 is communicated with the spraying assembly 3 through a transmission pipe 7. And a driving winding wheel 8 for winding the transmission pipe 7 is installed on the moving frame 2. Specifically, fireproof coatings are applied to the inhibitor double delivery pipe 1, the moving frame 2, the spraying assembly 3, the recovery assembly 4, the first one-way valve 5, the second one-way valve 6, the transmission pipe 7, and the driving winding wheel 8. In the early stage of thermal runaway of the battery cluster, the moving frame 2 is moved and placed above the battery cluster. The first one-way valve 5 is docked with the second one-way valve 6. Then the driving winding wheel 8 drives to lower the transmission pipe 7. At the same time, the recovery assembly 4 descends and is placed on the ground inside the battery box, so that the battery cluster in thermal runaway is placed inside the recovery assembly 4. Then the spraying assembly 3 sprays out the inhibitor to cover the battery cluster. At the same time, the recovery assembly 4 recovers the inhibitor, so that the inhibitor continuously descends to form a partition wall, preventing the battery cluster in thermal runaway from affecting the adjacent battery clusters and further preventing the trend of thermal runaway; Partition components 9 are movably installed around the battery box. The partition components 9 are located between adjacent battery boxes. The partition component 9 includes a movable plate 901, a fire-resistant partition board 902, and a horizontal drive 903. The movable plate 901 is movably installed between adjacent battery boxes. A slot 904 is provided on the movable plate 901. The fire-resistant partition board 902 is inserted into the slot 904. The horizontal drive 903 is installed underground and is drivingly connected to the movable plate 901. An air guide channel 905 is provided in the fire-resistant partition board 902, and a plurality of through holes 906 communicating with the air guide channel 905 are evenly opened on both symmetric sides of the fire-resistant partition board 902. A transfer pipe 907 communicating with the air guide channel 905 is provided at the bottom of the movable plate 901. The transfer pipe 907 is communicated with an external fan. When the battery box without thermal runaway operates normally, cold air is transmitted through the cooperation of the external fan and the transfer pipe 907. Thus, the cold air enters the air guide channel 905 and is blown out through the plurality of through holes 906, thereby cooling the battery box. The fire-resistant partition board 902 can partition adjacent battery boxes. When thermal runaway occurs, the device for forming a partition wall by releasing inhibitors around the battery cluster is activated. At the same time, the horizontal drive 903 drives the movable plate 901 to drive the fire-resistant partition board 902 to move towards the battery box with thermal runaway, so as to be placed outside the inhibitor isolation wall, and the inhibitor on the inhibitor isolation wall is blown towards the battery box through the air outlet of the plurality of through holes 906 to inhibit thermal runaway. Moreover, the fire-resistant partition board 902 can also continuously blow air to adjacent battery boxes to prevent the heat generated by the battery box with thermal runaway from affecting adjacent battery boxes, and further provide protection.

[0030] Specifically, the first fire extinguishing agent is perfluoromethyl isopropyl ketone + coated hollow glass microsphere powder + nitrogen; the second inhibitor is one of perfluoromethyl isopropyl ketone, heptafluoropropane, or BTP, preferably perfluoromethyl isopropyl ketone, and the third fire extinguishing agent is heptafluoropropane or a fine water mist type water-based fire extinguishing inhibitor.

[0031] This method is used to deal with different emergencies through different schemes, makes intelligent decisions through fire protection big data, responds more quickly, has better fire extinguishing efficiency, and better guarantees the safety of personnel.

[0032] Further, the spraying assembly 3 includes a fixing frame 301 and four groups of nozzles 302. The fixing frame 301 is fixedly installed on the moving frame 2. The four groups of nozzles 302 are respectively installed on the four sides of the fixing frame 301. The four groups of nozzles 302 are communicated with a main pipe. The main pipe is communicated with the second one-way valve 6, and a connecting pipe connected to the transfer pipe 7 is provided. A lifting cylinder 303 for driving the second one-way valve 6 to lift is installed on the fixing frame 301. The second one-way valve 6 is driven by the lifting cylinder 303 to be butted with the second one-way valve 6, and then the main pipe transmits the inhibitor, and the inhibitor is sprayed out through the nozzles 302 to form an inhibitor isolation wall.

[0033] Further, the recovery component 4 includes a connecting frame 401. The connecting frame 401 is connected to the recovery component 4 through a pulling rope, and the pulling rope is wound around the active winding wheel 8. A recovery groove 402 is installed at the position corresponding to the output of the spraying component 3 on the connecting frame 401. A transfer pump 403 is installed on one side of the recovery groove 402, and the transfer pump 403 is communicated with the transfer pipe 7. The inhibitor falling down is recovered and reused through the cooperation of the transfer pump 403 and the recovery groove 402, so as to continuously lower the inhibitor until the out-of-control battery cluster is controlled.

[0034] Further, a heat dissipation channel 908 is provided in the air guiding channel 905. An air outlet communicated with the heat dissipation channel 908 is provided at the top of the refractory partition board 902. A shielding board 909 is provided on the refractory partition board 902. An air duct 9010 communicated with the heat dissipation channel 908 is provided at the bottom of the moving plate 901, and the air duct 9010 is communicated with a centrifugal fan 9011. Specifically, the centrifugal fan 9011 is a technical device of common knowledge. It is divided into two types: right-handed and left-handed. When the impeller rotates clockwise, it is called a right-rotating fan, and it is an air suction type; when the impeller rotates counterclockwise, it is called a left-rotating fan, and it is an air supply type. The heat generated by the battery box will rise to the top, so the air at the top will be relatively hot. If heat dissipation is not carried out at this time, the top of the battery box is prone to thermal runaway. Therefore, through the cooperation of the centrifugal fan 9011 and the air duct 9010, the hot air enters from the air outlet, moves along the heat dissipation channel 908 and is discharged, so as to dissipate heat from the top and prevent the top of the battery box from being prone to thermal runaway. And the shielding board 909 is provided to prevent water spray or inhibitor from entering the heat dissipation channel 908. And during thermal runaway, the impeller of the centrifugal fan 9011 rotates counterclockwise to supply air. It cooperates with the air duct 9010 and the heat dissipation channel 908 to output the air through the air outlet. Due to the blocking of the shielding board 909, the blown air moves horizontally, so as to form an air curtain on the top of the battery box.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A five-dimensional closed-loop prevention and control method for a new energy storage power station, characterized in that, It includes the following steps: A. Monitor the environmental parameters in the battery storage box and the voltage, current, and resistance information of each sensor, and obtain the front and back data at different times through information feedback at multiple different times; B. Based on the monitoring information and the historical status information of the battery cluster, conduct intelligent decision-making through multi-parameter coupling analysis; C. If the temperature of the battery box is higher than 40 °C, start the heat exchange component to cool down; D. If thermal runaway occurs, start the active cooling component to cool and extinguish the fire; D1. When thermal runaway is about to occur, start the cluster-level cooling plan; D2. In the early stage of thermal runaway, start the cabin-level cooling plan, cut off the power supply, release the first inhibitor from the battery box to inhibit thermal runaway, and release inhibitors around the battery cluster to form a partition wall; D3. During the occurrence of thermal runaway, release the second inhibitor to inhibit thermal runaway; D4. In the initial stage of the fire, release the first fire extinguishing agent to extinguish the fire. While releasing the first fire extinguishing agent to extinguish the fire, start the sound and light alarm and the fan to operate, and send a signal to the municipal fire protection facilities. If it is found that the fire cannot be suppressed and extinguished, release the second fire extinguishing agent to extinguish the fire. After the fire is successfully extinguished, a second thermal runaway occurs, and release the third fire extinguishing agent to extinguish the fire; In step D2, the device for releasing inhibitors around the battery cluster to form a partition wall includes an inhibitor double delivery pipe, a moving frame, a spraying component, and a recovery component. The inhibitor double delivery pipe extends to the top of the battery cluster. The moving frame is movably placed on the inhibitor double delivery pipe. The spraying component is installed on the moving frame. The inhibitor double delivery pipe is respectively provided with a first one-way valve connected to the spraying component at positions corresponding to the top of the battery cluster. The spraying component is provided with a second one-way valve communicating with the first one-way valve in a lifting manner. The recovery component is communicated with the spraying component through a transmission pipe, and an active winding wheel for winding the transmission pipe is installed on the moving frame; Partition components are movably installed around the battery box, and the partition components are located between adjacent battery boxes. The partition components include a moving plate, a fire-resistant partition board, and a horizontal drive. The moving plate is movably installed between adjacent battery boxes. The moving plate is provided with a slot. The fire-resistant partition board is inserted into the slot. The horizontal drive is installed underground and is drivingly connected to the moving plate. The fire-resistant partition board is provided with a guiding air flow channel, and a plurality of through holes communicating with the guiding air flow channel are evenly opened on both symmetric sides of the fire-resistant partition board. A transmission pipe communicating with the guiding air flow channel is provided at the bottom of the moving plate, and the transmission pipe is communicated with an external fan; 2. The five-dimensional closed-loop prevention and control method for a new energy storage power station according to claim 1, wherein: The environmental parameters in step A include temperature information, gas component information, and pressure information. The equipment used for monitoring includes a temperature sensor, an optical smoke sensor, a hydrogen gas sensor, a carbon monoxide smoke sensor, a pressure sensor, and an electrolyte leakage monitoring sensor. The temperature sensor, the optical smoke sensor, the hydrogen gas sensor, the carbon monoxide smoke sensor, the pressure sensor, and the electrolyte leakage monitoring sensor are installed inside the battery box; 3. A five-dimensional closed-loop prevention and control method for a new energy storage power station according to claim 1, characterized in that: In step B, the data integration and transmission are placed in the control system. Through the calculation of the control system combined with the fire protection big data platform, data analysis, intelligent early warning, and potential hazard investigation are carried out, and intelligent decision-making is made.

4. A five-dimensional closed-loop prevention and control method for a new energy storage power station according to claim 1, characterized in that: In step C, when the battery temperature is higher than 40 degrees Celsius, liquid cooling is started. A liquid cooling plate is provided on the inner bottom plate of the battery box, and a liquid cooling control unit and a liquid cooling unit are provided on the battery box panel to control the battery temperature to be kept less than 40 degrees Celsius.

5. A five-dimensional closed-loop prevention and control method for a new energy storage power station according to claim 1, characterized in that: In step D1, when thermal runaway is about to occur, air cooling and liquid cooling are started. The air cooling is to fix the fan behind the battery cluster, adopt a direct-drive high-power fan group, and intelligent electric control. The liquid cooling is to set up a liquid circulation cooling channel inside the battery cluster, and reduce the temperature of the battery box through a heat exchanger, a compressor, and a condenser.

6. A five-dimensional closed-loop prevention and control method for a new energy storage power station according to claim 1, characterized in that: In step D2, in the early stage of thermal runaway, air cooling and fine water mist cooling are started. The fine water mist cooling is to set up fine water mist nozzles at the top inside the battery box, and release a fine water mist type water-based fire extinguishing inhibitor through the fine water mist nozzles.

7. A five-dimensional closed-loop prevention and control method for a new energy storage power station according to claim 1, characterized in that: The spraying assembly includes a fixing frame and four groups of nozzles. The fixing frame is fixedly installed on the moving frame. The four groups of nozzles are respectively installed on the four sides of the fixing frame. The four groups of nozzles are communicated with a main pipeline. The main pipeline is communicated with a second one-way valve. An elevating cylinder for driving the second one-way valve to lift is installed on the fixing frame.

8. A five-dimensional closed-loop prevention and control method for a new energy storage power station according to claim 1, characterized in that: The recovery assembly includes a connecting frame. The connecting frame is connected to the recovery assembly through a pull rope, and the pull rope is wound around a driving winding wheel. A recovery tank is installed at the position corresponding to the output of the spraying assembly on the connecting frame. A transfer pump is installed on one side of the recovery tank, and the transfer pump is communicated with a transfer pipe.

9. A five-dimensional closed-loop prevention and control method for a new energy storage power station according to claim 1, characterized in that: A driving wheel is installed on the moving end of the moving frame. A fiber groove matching the pipe diameter of the inhibitor double delivery pipe is provided on the outer diameter of the driving wheel. A driving motor for driving the driving wheel to rotate is installed on the moving frame.

10. A five-dimensional closed-loop prevention and control method for a new energy storage power station according to claim 1, characterized in that: A heat dissipation channel is provided in the air guiding channel. An air outlet communicated with the heat dissipation channel is provided at the top of the fire-resistant partition board. A shielding plate is provided on the fire-resistant partition board. An air guiding pipe communicated with the heat dissipation channel is provided at the bottom of the moving plate, and the air guiding pipe is communicated with a centrifugal fan.

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