Graded fire-fighting early warning device, method and terminal for energy storage power station

Abstract

The invention relates to the technical field of energy storage power stations, and particularly provides a graded fire-fighting early warning device and method for an energy storage power station and a terminal.The energy storage power station comprises a plurality of containers, battery cabins and electrical cabins are arranged in the containers, and a plurality of batteries PACK are installed in the battery cabins; the grading fire-fighting early warning device comprises a fire-fighting host, a battery PACK grade fire-fighting early warning module and a cabin grade fire-fighting early warning module. The battery PACK level fire-fighting early warning module comprises a relay module, and the relay module is connected with a first detection device arranged in the battery PACK; the relay module is also connected with a fire-fighting host; the battery PACK level fire-fighting early warning module further comprises a fire extinguishing agent spray head and a puncture valve. The cabin-level fire-fighting early-warning module comprises a battery cabin early-warning unit and an electrical cabin early-warning unit. The problems of single detection means, single response mechanism, single fire extinguishing system selection and lack of intelligent linkage in the prior art are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy storage power stations, and in particular relates to a hierarchical fire warning device, method and terminal for an energy storage power station. Background Art

[0002] With the continuous growth of global energy demand, the development and utilization of new energy has become the focus of global attention. As an important supporting facility for renewable energy power generation, the safety of energy storage power stations is particularly important. In energy storage power stations, battery packs have high energy density and there are safety hazards such as thermal runaway and fire, which pose a serious threat to the safe operation of energy storage power stations.

[0003] The existing fire protection system has the following problems: First, the detection means are single: traditional fire protection systems are usually equipped with only smoke detectors or temperature detectors, lack the ability to comprehensively monitor multiple dangerous factors, and cannot accurately identify and warn of the early stages of fire. Second, the response mechanism is single: in the existing technology, the response mechanism of the fire protection system is usually a simple response based on a single signal, and it is difficult to take corresponding measures according to different danger levels and fire conditions, resulting in frequent fire extinguishing or improper fire extinguishing methods. Third, the fire extinguishing system selection is single: most traditional energy storage power station fire protection systems mainly rely on a single fire extinguishing method, such as water spraying, which lacks flexibility when facing different types of fires and cannot achieve targeted fire extinguishing. Fourth, lack of intelligent linkage: existing fire protection systems often cannot be effectively linked with other power station equipment, such as power control, exhaust system, etc., resulting in the inability to quickly cut off the power supply and start exhaust when a fire occurs, thereby increasing fire losses. Summary of the invention

[0004] In view of the problems of the prior art such as single detection means, single response mechanism, single fire extinguishing system selection and lack of intelligent linkage, the present invention provides a hierarchical fire warning device, method and terminal for an energy storage power station to solve the above technical problems.

[0005] In a first aspect, the present invention provides a hierarchical fire warning device for an energy storage power station, wherein the energy storage power station includes a plurality of containers, wherein a battery compartment and an electrical compartment are provided in the containers, wherein a plurality of battery PACKs are installed in the battery compartment, and wherein the hierarchical fire warning device includes: a fire host, a battery PACK-level fire warning module, and a compartment-level fire warning module; The battery PACK-level fire warning module includes a relay module, which is connected to a first detection device arranged inside the battery PACK; the relay module is also connected to a fire host, and is used to upload the received real-time detected environmental data to the fire host; the battery PACK-level fire warning module also includes a first fire extinguishing agent nozzle and a puncture valve, which are respectively connected to the relay module, and are used for the fire host to control the puncture valve to puncture the battery PACK through the relay module when the detected internal environmental data of the battery PACK exceeds a preset first threshold, and the first fire extinguishing agent nozzle sprays the fire extinguishing agent to extinguish the fire; The cabin-level fire warning module includes a battery cabin warning unit and an electrical cabin warning unit; The battery compartment early warning unit includes a second detection device arranged inside the battery compartment; the second detection device is connected to the fire host; the battery compartment early warning unit also includes a second fire extinguishing agent nozzle and an electric ball valve, the second fire extinguishing agent nozzle is connected to the fire host through the electric ball valve, and is used for when the detected internal environment data of the battery compartment exceeds a preset second threshold value, the fire host controls the electric ball valve to open, and the second fire extinguishing agent nozzle sprays the fire extinguishing agent; The electrical compartment early warning unit includes a third detection device and a third fire extinguishing agent nozzle; the third detection device is connected to the fire host, and the third fire extinguishing agent nozzle is connected to the fire host through an electric ball valve.

[0006] Furthermore, the battery compartment warning unit also includes a fire water interface arranged outside the battery compartment; The fire extinguishing device is arranged in the electrical cabin, the first fire extinguishing agent nozzle is connected to the fire extinguishing device through the battery PACK-level fire extinguishing pipeline, and the second fire extinguishing agent nozzle and the third fire extinguishing agent nozzle are connected to the fire extinguishing device through the cabin-level fire extinguishing pipeline; The container is provided with a fourth detection device, an audible and visual alarm, an electric shutter, an exhaust fan, a pressure relief port and a rain cover; the fourth detection device, the audible and visual alarm, the electric shutter and the exhaust fan are all connected to the fire-fighting host.

[0007] In a second aspect, the present invention provides a hierarchical fire warning method for an energy storage power station, comprising: S1. The fire host obtains environmental data collected by the first detection device, the second detection device, the third detection device and the fourth detection device; S2. The fire host receives environmental data and determines the type and level of fire warning based on the environmental data. The fire warning type includes battery PACK-level fire warning and cabin-level fire warning. The battery PACK-level fire warning level includes level 1 warning, level 2 warning, level 3 warning and level 4 warning. The cabin-level fire warning level includes primary warning and alert warning. S3. Based on the determined fire warning type and fire warning level, output the fire warning level to the outside world; S4. Execute fire warning operations based on the level of fire warning output to the outside.

[0008] Furthermore, the environmental data includes: The environmental data collected by the first detection device include CO parameters, temperature parameters, VOC parameters and smoke concentration parameters; The environmental data collected by the second detection device include CO parameters, temperature parameters, hydrogen parameters, VOC parameters and smoke concentration parameters; The environmental data collected by the third detection device include CO parameters, temperature parameters, hydrogen parameters, VOC parameters and smoke concentration parameters; The environmental data collected by the fourth detection device include CO parameters, hydrogen parameters and VOC parameters.

[0009] Further, the fire host receives environmental data, and determines the fire warning type and the level of the fire warning based on the environmental data, wherein the fire warning type includes a battery PACK-level fire warning and a cabin-level fire warning, the battery PACK-level fire warning level includes a level 1 warning, a level 2 warning, a level 3 warning and a level 4 warning, and the cabin-level fire warning level includes a primary warning and a warning warning, including: When the CO concentration collected by the first detection device is greater than or equal to the preset first CO threshold and less than the preset second CO threshold, and / or the temperature is greater than or equal to the preset first temperature threshold and less than the preset second temperature threshold, and / or the VOC concentration is greater than or equal to the preset first VOC threshold and / or the smoke concentration, it is judged as a level 1 warning of the battery PACK-level fire warning; When the VOC concentration collected by the first detection device is greater than or equal to the second VOC threshold and the CO concentration is greater than or equal to the preset second CO threshold and the slope of CO is the first preset slope, and / or the CO concentration is greater than or equal to the preset second CO threshold and the temperature is greater than or equal to the preset third temperature threshold, and / or the VOC concentration is greater than or equal to the second VOC threshold and the temperature is greater than or equal to the preset third temperature threshold, and / or the CO increment is greater than or equal to the preset second CO threshold, and / or the temperature is greater than or equal to the preset second temperature threshold, it is judged as a Level 2 warning of the battery PACK-level fire warning; When the VOC concentration collected by the first detection device is greater than or equal to the third VOC threshold and the CO concentration is greater than or equal to the preset third CO threshold and the slope of CO is the second preset slope, and / or the VOC concentration is greater than or equal to the third VOC threshold and the temperature is greater than or equal to the preset third temperature threshold and the smoke concentration is greater than or equal to the preset first smoke concentration threshold, and / or the CO concentration is greater than or equal to the preset fourth CO threshold and the temperature is greater than or equal to the preset second temperature threshold, and / or the CO increment is greater than or equal to the preset third CO threshold, and / or the temperature is greater than or equal to the preset fourth temperature threshold, it is judged as a Level 3 warning of the battery PACK-level fire warning; When the VOC concentration collected by the first detection device is greater than or equal to the third VOC threshold and the CO concentration is greater than or equal to the preset fourth CO threshold and the temperature is greater than or equal to the preset fourth temperature threshold, and / or the temperature is greater than or equal to the preset fourth temperature threshold and the smoke concentration is greater than or equal to the preset second smoke concentration threshold, and / or the temperature is greater than or equal to the preset fifth temperature threshold, it is judged as a Level 4 warning of the battery PACK-level fire warning; When the concentration of hydrogen or carbon monoxide collected by the second detection device, the third detection device and the fourth detection device is greater than or equal to the preset first low warning value, and / or the temperature is greater than or equal to the preset first temperature threshold and less than the preset second temperature threshold, and / or the VOC concentration is greater than or equal to the preset first VOC threshold and / or the smoke concentration, it is judged as a primary warning of the cabin-level fire warning; When the hydrogen or carbon monoxide concentration collected by the second detection device, the third detection device and the fourth detection device is greater than or equal to the preset first high warning value, and / or the temperature is greater than or equal to the preset first temperature threshold and less than the preset second temperature threshold and the VOC concentration is greater than or equal to the preset first VOC threshold and / or the smoke concentration, it is judged as a cabin-level fire warning warning.

[0010] Furthermore, based on the determined fire warning type and fire warning level, the fire warning level is output externally, including: If it is judged as a Level 1 warning of the battery PACK-level fire warning, an internal warning will be issued and the warning level will not be output externally; If it is judged to be a Level 2 warning or Level 3 warning of a battery PACK-level fire warning or a primary warning of a cabin-level fire warning, a primary warning is output externally; If it is judged to be a level 4 warning of the battery PACK-level fire warning or a warning warning of the cabin-level fire warning, a warning warning is output externally.

[0011] Furthermore, based on the level of the externally outputted fire warning, fire warning operations are performed, including: If the external output is a primary warning, the fire host controls the sound and light alarm to issue a warning, opens the electric blinds and exhaust fan, and outputs the primary warning signal to the BMS system, which cuts off the DC side circuit breaker; If the external output is a warning, the fire host controls the sound and light alarm to issue a warning, closes the electric blinds and exhaust fan, and outputs the warning signal to the BMS system. The BMS cuts off the AC side circuit breaker and performs fire extinguishing operations according to the fire warning type and level.

[0012] Furthermore, fire extinguishing operations are performed according to the fire warning type and the fire warning level, including: The fire host determines whether there is an emergency stop signal: If so, stop the fire-fighting operation immediately; If not, spray the fire extinguishing agent according to the fire warning type and level; If it is a Level 1, Level 2 or Level 3 warning of the battery PACK-level fire warning or a primary warning of the cabin-level fire warning, the fire extinguishing agent will not be sprayed; If it is a Level 4 warning of the battery PACK-level fire warning, the puncture valve will be activated and the battery will be automatically The first spraying of fire extinguishing agent is carried out within a preset time period. Perform a spraying, and continue N times; If it is a cabin-level fire warning, the electric ball valve will be activated in the preset time period. The first spraying of perfluorohexanone is carried out within 10 minutes. After the first spraying, the preset time period is repeated. Then carry out the second spraying, the spraying time of the second spraying is After the second spraying, the preset time interval Then the third spraying is carried out, and the spraying time of the third spraying is .

[0013] Furthermore, after the fire extinguishing operation is performed, the following step is included: if the fire re-ignites, external fire water is introduced into the battery compartment through a fire water interface provided outside the battery compartment to perform fire water spraying and extinguishing.

[0014] In a third aspect, a terminal is provided, including: processor, memory, wherein: The memory is used to store computer programs. The processor is used to call and run the computer program from the memory, so that the terminal executes the above-mentioned terminal method.

[0015] The beneficial effect of the present invention is that the hierarchical fire warning device, method and terminal of the energy storage power station provided by the present invention can monitor various dangerous factors in the energy storage power station in real time by integrating multiple detection devices, and respond in time through the hierarchical warning mechanism to effectively prevent the spread of fire. And it adopts a design that combines fire extinguishing agent extinguishing with traditional water spraying fire extinguishing, which can automatically select the optimal fire extinguishing means according to the fire situation and realize precise fire extinguishing. At the same time, the system design takes into account the needs of multiple fire extinguishing and improves the utilization efficiency of fire extinguishing agent. Through the fire host, the intelligent linkage control of various detection devices, fire extinguishing devices and related auxiliary equipment, such as exhaust fans, shutters, etc., is realized to ensure that when a fire occurs, the system can quickly cut off the power supply, start exhaust, and spray fire extinguishing agent, thereby effectively reducing fire losses.

[0016] In addition, the invention has a reliable design principle, a simple structure and a very broad application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 is a schematic flow chart of a method according to an embodiment of the present invention.

[0019] Figure 2 The figure is a schematic flow chart of a battery PACK-level fire warning method according to an embodiment of the present invention.

[0020] Figure 3 The figure is a schematic flow chart of a cabin-level fire warning method according to an embodiment of the present invention.

[0021] Figure 4 A schematic diagram of the structure of a terminal provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0024] The present invention provides a hierarchical fire warning device for an energy storage power station, wherein the energy storage power station comprises a plurality of containers, wherein a battery compartment and an electrical compartment are arranged in the containers, wherein a plurality of battery PACKs are installed in the battery compartment, and wherein the hierarchical fire warning device comprises: a fire host, a battery PACK-level fire warning module and a compartment-level fire warning module; The battery PACK-level fire warning module includes a relay module, which is connected to a first detection device arranged inside the battery PACK; the relay module is also connected to a fire host, and is used to upload the received real-time detected environmental data to the fire host; the battery PACK-level fire warning module also includes a first fire extinguishing agent nozzle and a puncture valve, which are respectively connected to the relay module, and are used for when the detected internal environmental data of the battery PACK exceeds a preset first threshold, the fire host controls the puncture valve through the relay module to puncture the battery PACK, and the first fire extinguishing agent nozzle sprays fire extinguishing agent to extinguish the fire.

[0025] Specifically, the first detection device can be a carbon monoxide and smoke and temperature composite fire detection device CW1310-07A for energy storage power stations. A first detection device is installed inside each battery PACK, and the total number of installed devices can be 96. The model of the relay module can be CW1310-80A, and the number of installed devices can be 12. The relay module is installed at the front end of the first detection device, supplies power to the first detection device and collects the environmental data detected by the first detection device, sends the environmental data to the fire host, and starts the ball valve or solenoid valve according to the preset linkage logic, which plays a role in the transfer of environmental data. The fire extinguishing agent can be perfluorohexanone fire extinguishing agent, and the fire extinguishing nozzle can be a special nozzle for perfluorohexanone.

[0026] The cabin-level fire warning module includes a battery cabin warning unit and an electrical cabin warning unit; The battery compartment early warning unit includes a second detection device arranged inside the battery compartment; the second detection device is connected to the fire host; the battery compartment early warning unit also includes a second fire extinguishing agent nozzle and an electric ball valve, and the second fire extinguishing agent nozzle is connected to the fire host through the electric ball valve, which is used for when the detected internal environmental data of the battery compartment exceeds a preset second threshold value, the fire host controls the electric ball valve to open, and the second fire extinguishing agent nozzle sprays the fire extinguishing agent.

[0027] Specifically, four second detection devices can be installed on the top of the battery compartment, including two explosion-proof point-type heat-sensing fire detectors CW1310-04E and two explosion-proof point-type smoke fire detectors CW1310-05E for cabin-level detection and early warning. The model of the second detection device can be a hydrogen and carbon monoxide composite combustible gas detection device CW1310-06E for energy storage power stations. Three cabin top atomizing fire extinguishing nozzles, one electric ball valve, and one carbon monoxide and smoke temperature composite fire detection device CW1310-07A for energy storage power stations are installed on the top of the battery compartment to achieve cabin-level fire extinguishing.

[0028] The electrical compartment early warning unit includes a third detection device and a third fire extinguishing agent nozzle; the third detection device is connected to the fire host, and the third fire extinguishing agent nozzle is connected to the fire host through an electric ball valve.

[0029] Specifically, an explosion-proof point-type smoke detector CW1310-05E is installed on the top of the electrical compartment for detection and early warning of the electrical compartment. A non-pressure storage perfluorohexanone fire suppression device (70kg agent) is installed in the electrical compartment and PACK-level pipelines and compartment-level pipelines are arranged. A fire alarm control device CW1310-99A for energy storage power stations is installed inside each electrical compartment, that is, the fire host, which receives the environmental data detected by the battery compartment and controls the linkage of the fire sound and light alarm and external equipment such as BMS, explosion-proof exhaust fans, and electric blinds according to the environmental data.

[0030] In one possible implementation, the battery compartment warning unit further includes a fire water interface arranged outside the battery compartment. The fire extinguishing device is arranged in the electrical compartment, the first fire extinguishing agent nozzle is connected to the fire extinguishing device through the battery PACK-level fire extinguishing pipeline, and the second fire extinguishing agent nozzle and the third fire extinguishing agent nozzle are connected to the fire extinguishing device through the compartment-level fire extinguishing pipeline. The container is provided with a fourth detection device, an audible and visual alarm, an electric blind, an exhaust fan, a pressure relief port and a rain cover; the fourth detection device, the audible and visual alarm, the electric blind and the exhaust fan are all connected to the fire host.

[0031] Specifically, an independent water fire control system is used, a DN65 fire water interface is reserved outside the battery compartment, and the fire water pipeline inside the battery compartment is designed with a variable diameter steel pipe. An open water sprinkler nozzle is installed at the end of each section of the pipeline, and a total of 3 nozzles are arranged. Variable diameter water pipelines are arranged inside the battery compartment to carry out the final water flooding fire extinguishing. A pressure relief port and rain cover are reserved for installation on the outside of the container to balance the pressure difference between the inside and outside of the station when the gas fire extinguisher is activated. It is installed at more than 2 / 3 of the net height of the protection area. Two explosion-proof exhaust fans and rain covers are arranged in the container for the discharge of gas in the cabin. Two electric shutters and rain covers are arranged in the container for air intake in the cabin. The sound and light alarm can be a fire sound and light alarm CW1310-21B, non-coding type, installed at the entrance of the container. When a fire occurs and is confirmed on the scene, the fire control host activates the alarm to send a strong sound and light alarm signal to alert the on-site personnel.

[0032] The hierarchical fire warning method of the energy storage power station provided in the embodiment of the present invention is executed by a computer device, and accordingly, the hierarchical fire warning system of the energy storage power station runs in the computer device.

[0033] Figure 1 is a schematic flow chart of a method according to an embodiment of the present invention. Figure 1 The execution subject may be a hierarchical fire warning system for an energy storage power station. According to different requirements, the order of the steps in the flowchart may be changed, and some may be omitted.

[0034] To facilitate understanding of the present invention, the hierarchical fire warning method for an energy storage power station provided by the present invention is further described below based on the principle of the hierarchical fire warning method for an energy storage power station of the present invention and in combination with the process of performing hierarchical fire warning on an energy storage power station in an embodiment.

[0035] Specifically, the hierarchical fire warning method of the energy storage power station includes: S1. The fire host obtains environmental data collected by the first detection device, the second detection device, the third detection device and the fourth detection device.

[0036] The environmental data include: the environmental data collected by the first detection device include CO parameters, temperature parameters, VOC parameters and smoke concentration parameters; the environmental data collected by the second detection device include CO parameters, temperature parameters, hydrogen parameters, VOC parameters and smoke concentration parameters; the environmental data collected by the third detection device include CO parameters, temperature parameters, hydrogen parameters, VOC parameters and smoke concentration parameters; the environmental data collected by the fourth detection device include CO parameters, hydrogen parameters and VOC parameters.

[0037] S2. The fire host receives environmental data and determines the type and level of fire warning based on the environmental data. The fire warning type includes battery PACK-level fire warning and cabin-level fire warning. The battery PACK-level fire warning level includes level 1 warning, level 2 warning, level 3 warning and level 4 warning. The cabin-level fire warning level includes primary warning and alert warning.

[0038] visible Figure 2 , PACK level fire warning is: When the CO concentration collected by the first detection device is greater than or equal to the preset first CO threshold and less than the preset second CO threshold, and / or the temperature is greater than or equal to the preset first temperature threshold and less than the preset second temperature threshold, and / or the VOC concentration is greater than or equal to the preset first VOC threshold and / or the smoke concentration, it is judged as a Level 1 warning for the battery PACK-level fire warning.

[0039] Specifically, when any one of the conditions is met, it is determined to be a level 1 warning of a battery PACK-level fire warning.

[0040] (1) CO 100ppm and CO ; (2) Temperature 60 ; (3) VOC 0.6V; (4) Smoke density 2mg / And smoke concentration 5mg / .

[0041] When the VOC concentration collected by the first detection device is greater than or equal to the second VOC threshold and the CO concentration is greater than or equal to the preset second CO threshold and the slope of CO is the first preset slope, and / or the CO concentration is greater than or equal to the preset second CO threshold and the temperature is greater than or equal to the preset third temperature threshold, and / or the VOC concentration is greater than or equal to the second VOC threshold and the temperature is greater than or equal to the preset third temperature threshold, and / or the CO increment is greater than or equal to the preset second CO threshold, and / or the temperature is greater than or equal to the preset second temperature threshold, it is judged as a Level 2 warning for the battery PACK-level fire warning.

[0042] Specifically, when any one of the conditions is met, the response time is 12 seconds, and it is judged as a level 2 warning of the battery PACK-level fire warning.

[0043] (1) VOC 2.5V and CO 190ppm and CO slope of 10ppm / s; (2) CO 190ppm and temperature 65 ; (3) VOC 2.5V and temperature 65 ; (4) CO increment is 190 ppm; (5) Temperature 70 .

[0044] When the VOC concentration collected by the first detection device is greater than or equal to the third VOC threshold and the CO concentration is greater than or equal to the preset third CO threshold and the slope of CO is the second preset slope, and / or the VOC concentration is greater than or equal to the third VOC threshold and the temperature is greater than or equal to the preset third temperature threshold and the smoke concentration is greater than or equal to the preset first smoke concentration threshold, and / or the CO concentration is greater than or equal to the preset fourth CO threshold and the temperature is greater than or equal to the preset second temperature threshold, and / or the CO increment is greater than or equal to the preset third CO threshold, and / or the temperature is greater than or equal to the preset fourth temperature threshold, it is judged as a Level 3 warning for a battery PACK-level fire warning.

[0045] Specifically, when any one of the conditions is met, the response time is 6 seconds, or when it is judged as a Level 4 warning but the response time of the Level 4 warning is not reached, it is judged as a Level 3 warning of the battery PACK level fire warning.

[0046] (1) VOC 2.8V and CO 500ppm and CO slope of 20ppm / s; (2) VOC 2.8V and temperature 70 And smoke concentration 5mg / ; (3) CO 800ppm and temperature 70 ; (4) CO increment is 500 ppm; (5) Temperature 80 .

[0047] When the VOC concentration collected by the first detection device is greater than or equal to the third VOC threshold and the CO concentration is greater than or equal to the preset fourth CO threshold and the temperature is greater than or equal to the preset fourth temperature threshold, and / or the temperature is greater than or equal to the preset fourth temperature threshold and the smoke concentration is greater than or equal to the preset second smoke concentration threshold, and / or the temperature is greater than or equal to the preset fifth temperature threshold, it is judged as a Level 4 warning for the battery PACK-level fire warning.

[0048] Specifically, when any one of the conditions is met and the response time of condition (1) is 5 seconds, and the other response time is 10 seconds, it is judged as a level 4 warning of the battery PACK level fire warning.

[0049] (1) VOC 2.8V and CO 800ppm and temperature 80 ; (2) Temperature 80 And smoke concentration 5mg / ; (3) Temperature 90 .

[0050] visible Figure 3 , PACK level fire warning is: When the hydrogen or carbon monoxide concentration collected by the second detection device, the third detection device and the fourth detection device is greater than or equal to the preset first low warning value, and / or the temperature is greater than or equal to the preset first temperature threshold and less than the preset second temperature threshold, and / or the VOC concentration is greater than or equal to the preset first VOC threshold and / or the smoke concentration, it is judged as a primary warning of the cabin-level fire warning.

[0051] When the hydrogen or carbon monoxide concentration collected by the second detection device, the third detection device and the fourth detection device is greater than or equal to the preset first high warning value, and / or the temperature is greater than or equal to the preset first temperature threshold and less than the preset second temperature threshold and the VOC concentration is greater than or equal to the preset first VOC threshold and / or the smoke concentration, it is judged as a cabin-level fire warning warning.

[0052] Specifically, the first low value warning value can be a CO low value: 190× ; H2 low value: 1000× The first high value warning value can be the CO high value: 500× , H2 high value: 8000× .

[0053] S3. Based on the determined fire warning type and fire warning level, the fire warning level is output externally.

[0054] If it is judged to be a Level 1 warning of the battery PACK-level fire warning, an internal warning will be issued and the warning level will not be output externally.

[0055] If it is judged to be a level 2 warning or a level 3 warning of a battery PACK-level fire warning or a primary warning of a cabin-level fire warning, a primary warning is output externally.

[0056] If it is judged to be a level 4 warning of the battery PACK-level fire warning or a warning warning of the cabin-level fire warning, a warning warning is output externally.

[0057] S4. Execute fire warning operations based on the level of fire warning output to the outside.

[0058] If the external output is a primary warning, the fire host controls the sound and light alarm to issue a warning, opens the electric blinds and exhaust fan, and outputs the primary warning signal to the BMS system, which cuts off the DC side circuit breaker. If the external output is a warning, the fire host controls the sound and light alarm to issue a warning, closes the electric blinds and exhaust fan, and outputs the warning signal to the BMS system. The BMS cuts off the AC circuit breaker and performs fire extinguishing operations according to the fire warning type and level. The fire host determines whether there is an emergency stop signal: if there is, the fire extinguishing operation is stopped immediately; if not, the fire extinguishing agent is sprayed according to the fire warning type and level. If it is a level 1, 2 or 3 warning of the battery PACK-level fire warning or a primary warning of the cabin-level fire warning, the fire extinguishing agent will not be sprayed; if it is a level 4 warning of the battery PACK-level fire warning, the puncture valve will be activated and the fire will be discharged within the preset time period. The first spraying of fire extinguishing agent is carried out within a preset time period. Perform a spraying, and continue N times.

[0059] If it is a cabin-level fire warning, the electric ball valve will be activated in the preset time period. The first spraying of perfluorohexanone is carried out within 10 minutes. After the first spraying, the preset time period is repeated. Then carry out the second spraying, the spraying time of the second spraying is After the second spraying, the preset time interval Then the third spraying is carried out, and the spraying time of the third spraying is .

[0060] After the fire extinguishing operation is performed, it also includes: if the fire reignites, external fire water enters the battery compartment through the fire water interface set outside the battery compartment to spray fire water for fire extinguishing.

[0061] Figure 4 A schematic diagram of the structure of a terminal 300 provided in an embodiment of the present invention. The terminal 300 can be used to execute the hierarchical fire warning method of the energy storage power station provided in an embodiment of the present invention.

[0062] The terminal 300 may include: a processor 310, a memory 320 and a communication module 330. These components communicate via one or more buses. Those skilled in the art will appreciate that the server structure shown in the figure does not limit the present invention, and it may be a bus structure or a star structure, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0063] The memory 320 can be used to store the execution instructions of the processor 310, and the memory 320 can be implemented by any type of volatile or non-volatile storage terminal or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. When the execution instructions in the memory 320 are executed by the processor 310, the terminal 300 can perform some or all of the steps in the following method embodiments.

[0064] The processor 310 is the control center of the storage terminal, and uses various interfaces and lines to connect various parts of the entire electronic terminal. It runs or executes software programs and / or modules stored in the memory 320, and calls data stored in the memory to perform various functions of the electronic terminal and / or process data. The processor can be composed of an integrated circuit (IC), for example, it can be composed of a single packaged IC, or it can be composed of multiple packaged ICs with the same or different functions. For example, the processor 310 can only include a central processing unit (CPU). In the embodiment of the present invention, the CPU can be a single computing core or multiple computing cores.

[0065] The communication module 330 is used to establish a communication channel so that the storage terminal can communicate with other terminals, receive user data sent by other terminals or send user data to other terminals.

[0066] The present invention also provides a computer storage medium, wherein the computer storage medium may store a program, and when the program is executed, the program may include some or all of the steps in each embodiment provided by the present invention. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM).

[0067] Therefore, the present invention can monitor various dangerous factors in the energy storage power station in real time by integrating multiple detection devices, and respond in time through a graded early warning mechanism to effectively prevent the spread of fire. And it adopts a design that combines fire extinguishing agent with traditional water spraying fire extinguishing, which can automatically select the optimal fire extinguishing means according to the fire situation and achieve precise fire extinguishing. At the same time, the system design takes into account the needs of multiple fire extinguishing and improves the utilization efficiency of fire extinguishing agents. Through the fire host, the intelligent linkage control of various detection devices, fire extinguishing devices and related auxiliary equipment, such as exhaust fans, shutters, etc., is realized to ensure that when a fire occurs, the system can quickly cut off the power supply, start exhaust, and spray fire extinguishing agents, thereby effectively reducing fire losses.

[0068] The technical effects that can be achieved by this embodiment can be found in the above description and will not be repeated here.

[0069] Those skilled in the art can clearly understand that the technology in the embodiments of the present invention can be implemented by means of software plus a necessary general hardware platform. Based on this understanding, the technical solution in the embodiments of the present invention, in essence or in other words, the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes, including several instructions for enabling a computer terminal (which can be a personal computer, a server, or a second terminal, a network terminal, etc.) to execute all or part of the steps of the methods described in each embodiment of the present invention.

[0070] In this specification, the same or similar parts between the various embodiments can be referred to each other. In particular, for the terminal embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description in the method embodiment.

[0071] In the several embodiments provided by the present invention, it should be understood that the disclosed systems and methods can be implemented in other ways. For example, the system embodiments described above are only schematic. For example, the division of the modules is only a logical function division. There may be other division methods in actual implementation, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of systems or modules, which can be electrical, mechanical or other forms.

[0072] The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed on multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0073] In addition, each functional module in each embodiment of the present invention may be integrated into a fire warning module, or each module may exist physically separately, or two or more modules may be integrated into one module.

[0074] Although the present invention has been described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, and all of these shall be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A hierarchical fire warning device for an energy storage power station, the energy storage power station comprising a plurality of containers, a battery compartment and an electrical compartment being arranged in the containers, a plurality of battery PACKs being installed in the battery compartment, characterized in that: The hierarchical fire warning device includes: a fire host, a battery PACK-level fire warning module and a cabin-level fire warning module; The battery PACK-level fire warning module includes a relay module, which is connected to a first detection device arranged inside the battery PACK; the relay module is also connected to a fire host, and is used to upload the received real-time detected environmental data to the fire host; the battery PACK-level fire warning module also includes a first fire extinguishing agent nozzle and a puncture valve, which are respectively connected to the relay module, and are used for the fire host to control the puncture valve to puncture the battery PACK through the relay module when the detected internal environmental data of the battery PACK exceeds a preset first threshold, and the first fire extinguishing agent nozzle sprays the fire extinguishing agent to extinguish the fire; The cabin-level fire warning module includes a battery cabin warning unit and an electrical cabin warning unit; The battery compartment early warning unit includes a second detection device arranged inside the battery compartment; the second detection device is connected to the fire host; the battery compartment early warning unit also includes a second fire extinguishing agent nozzle and an electric ball valve, the second fire extinguishing agent nozzle is connected to the fire host through the electric ball valve, and is used for when the detected internal environment data of the battery compartment exceeds a preset second threshold value, the fire host controls the electric ball valve to open, and the second fire extinguishing agent nozzle sprays the fire extinguishing agent; The electrical compartment early warning unit includes a third detection device and a third fire extinguishing agent nozzle; the third detection device is connected to the fire host, and the third fire extinguishing agent nozzle is connected to the fire host through an electric ball valve.

2. The device according to claim 1, characterized in that The battery compartment warning unit also includes a fire water interface arranged outside the battery compartment; The fire extinguishing device is arranged in the electrical cabin, the first fire extinguishing agent nozzle is connected to the fire extinguishing device through the battery PACK-level fire extinguishing pipeline, and the second fire extinguishing agent nozzle and the third fire extinguishing agent nozzle are connected to the fire extinguishing device through the cabin-level fire extinguishing pipeline; The container is provided with a fourth detection device, an audible and visual alarm, an electric shutter, an exhaust fan, a pressure relief port and a rain cover; the fourth detection device, the audible and visual alarm, the electric shutter and the exhaust fan are all connected to the fire-fighting host.

3. A hierarchical fire warning method for an energy storage power station, characterized in that: include: S1. The fire host obtains environmental data collected by the first detection device, the second detection device, the third detection device and the fourth detection device; S2. The fire host receives environmental data and determines the type and level of fire warning based on the environmental data. The fire warning type includes battery PACK-level fire warning and cabin-level fire warning. The battery PACK-level fire warning level includes level 1 warning, level 2 warning, level 3 warning and level 4 warning. The cabin-level fire warning level includes primary warning and alert warning. S3. Based on the determined fire warning type and fire warning level, output the fire warning level to the outside world; S4. Execute fire warning operations based on the level of fire warning output to the outside.

4. The method according to claim 3, characterized in that The environmental data includes: The environmental data collected by the first detection device include CO parameters, temperature parameters, VOC parameters and smoke concentration parameters; The environmental data collected by the second detection device include CO parameters, temperature parameters, hydrogen parameters, VOC parameters and smoke concentration parameters; The environmental data collected by the third detection device include CO parameters, temperature parameters, hydrogen parameters, VOC parameters and smoke concentration parameters; The environmental data collected by the fourth detection device include CO parameters, hydrogen parameters and VOC parameters.

5. The method according to claim 4, characterized in that The fire host receives environmental data and determines the fire warning type and level based on the environmental data. The fire warning type includes battery PACK-level fire warning and cabin-level fire warning. The battery PACK-level fire warning level includes level 1 warning, level 2 warning, level 3 warning and level 4 warning. The cabin-level fire warning level includes primary warning and alert warning, including: When the CO concentration collected by the first detection device is greater than or equal to the preset first CO threshold and less than the preset second CO threshold, and / or the temperature is greater than or equal to the preset first temperature threshold and less than the preset second temperature threshold, and / or the VOC concentration is greater than or equal to the preset first VOC threshold and / or the smoke concentration, it is judged as a level 1 warning of the battery PACK-level fire warning; When the VOC concentration collected by the first detection device is greater than or equal to the second VOC threshold and the CO concentration is greater than or equal to the preset second CO threshold and the slope of CO is the first preset slope, and / or the CO concentration is greater than or equal to the preset second CO threshold and the temperature is greater than or equal to the preset third temperature threshold, and / or the VOC concentration is greater than or equal to the second VOC threshold and the temperature is greater than or equal to the preset third temperature threshold, and / or the CO increment is greater than or equal to the preset second CO threshold, and / or the temperature is greater than or equal to the preset second temperature threshold, it is judged as a Level 2 warning of the battery PACK-level fire warning; When the VOC concentration collected by the first detection device is greater than or equal to the third VOC threshold and the CO concentration is greater than or equal to the preset third CO threshold and the slope of CO is the second preset slope, and / or the VOC concentration is greater than or equal to the third VOC threshold and the temperature is greater than or equal to the preset third temperature threshold and the smoke concentration is greater than or equal to the preset first smoke concentration threshold, and / or the CO concentration is greater than or equal to the preset fourth CO threshold and the temperature is greater than or equal to the preset second temperature threshold, and / or the CO increment is greater than or equal to the preset third CO threshold, and / or the temperature is greater than or equal to the preset fourth temperature threshold, it is judged as a Level 3 warning of the battery PACK-level fire warning; When the VOC concentration collected by the first detection device is greater than or equal to the third VOC threshold and the CO concentration is greater than or equal to the preset fourth CO threshold and the temperature is greater than or equal to the preset fourth temperature threshold, and / or the temperature is greater than or equal to the preset fourth temperature threshold and the smoke concentration is greater than or equal to the preset second smoke concentration threshold, and / or the temperature is greater than or equal to the preset fifth temperature threshold, it is judged as a Level 4 warning of the battery PACK-level fire warning; When the concentration of hydrogen or carbon monoxide collected by the second detection device, the third detection device and the fourth detection device is greater than or equal to the preset first low warning value, and / or the temperature is greater than or equal to the preset first temperature threshold and less than the preset second temperature threshold, and / or the VOC concentration is greater than or equal to the preset first VOC threshold and / or the smoke concentration, it is judged as a primary warning of the cabin-level fire warning; When the hydrogen or carbon monoxide concentration collected by the second detection device, the third detection device and the fourth detection device is greater than or equal to the preset first high warning value, and / or the temperature is greater than or equal to the preset first temperature threshold and less than the preset second temperature threshold and the VOC concentration is greater than or equal to the preset first VOC threshold and / or the smoke concentration, it is judged as a cabin-level fire warning warning.

6. The method according to claim 3, characterized in that Based on the determined fire warning type and level, the fire warning level is output externally, including: If it is judged as a Level 1 warning of the battery PACK-level fire warning, an internal warning will be issued and the warning level will not be output externally; If it is judged to be a Level 2 warning or Level 3 warning of a battery PACK-level fire warning or a primary warning of a cabin-level fire warning, a primary warning is output externally; If it is judged to be a level 4 warning of the battery PACK-level fire warning or a warning warning of the cabin-level fire warning, a warning warning is output externally.

7. The method according to claim 4, characterized in that Based on the level of the external fire warning, fire warning operations are performed, including: If the external output is a primary warning, the fire host controls the sound and light alarm to issue a warning, opens the electric blinds and exhaust fan, and outputs the primary warning signal to the BMS system, which cuts off the DC side circuit breaker; If the external output is a warning, the fire host controls the sound and light alarm to issue a warning, closes the electric blinds and exhaust fan, and outputs the warning signal to the BMS system. The BMS cuts off the AC side circuit breaker and performs fire extinguishing operations according to the fire warning type and level.

8. The method according to claim 7, characterized in that Fire extinguishing operations are carried out according to the fire warning type and level, including: The fire host determines whether there is an emergency stop signal: If so, stop the fire-fighting operation immediately; If not, spray the fire extinguishing agent according to the fire warning type and level; If it is a Level 1, Level 2 or Level 3 warning of the battery PACK-level fire warning or a primary warning of the cabin-level fire warning, the fire extinguishing agent will not be sprayed; If it is a Level 4 warning of the battery PACK-level fire warning, the puncture valve will be activated and the battery will be automatically The first spraying of fire extinguishing agent is carried out within a preset time period. Perform a spraying, and continue N times; If it is a cabin-level fire warning, the electric ball valve will be activated in the preset time period. The first spraying of perfluorohexanone is carried out within 10 minutes. After the first spraying, the preset time period is repeated. Then carry out the second spraying, the spraying time of the second spraying is After the second spraying, the preset time interval Then the third spraying is carried out, and the spraying time of the third spraying is .

9. The method according to claim 8, characterized in that After the fire extinguishing operation is performed, it also includes: if the fire reignites, external fire water enters the battery compartment through the fire water interface set outside the battery compartment to spray fire water for fire extinguishing.

10. A terminal, characterized in that: include: A memory, used to store a hierarchical fire warning program of the energy storage power station; A processor is used to implement the steps of the hierarchical fire warning method for an energy storage power station as described in any one of claims 3 to 9 when executing the hierarchical fire warning program of the energy storage power station.

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