Fire protection method and system for energy storage cabinet, intelligent terminal and storage medium

Abstract

The invention relates to a fire fighting method and system of an energy storage cabinet, an intelligent terminal and a storage medium, and relates to the technical field of fire fighting, and the method comprises the following steps: in response to target type gas detected by a gas sensor, starting a fire fighting fan on the energy storage cabinet; acquiring temperature data of a temperature sensor and smoke sensing data of a smoke sensor; under the condition that target temperature data in the temperature data is greater than a first preset temperature threshold value, determining a target battery pack corresponding to the target temperature data; introducing a flame retardant into the target battery pack; when the target temperature data is larger than a second preset temperature threshold value or the smoke sensing data is larger than a preset smoke sensing threshold value, a fire-fighting spraying device in the energy storage cabinet is started; and when the working duration of the fire-fighting spraying device is larger than a first preset duration and the smoke sensing data is larger than a preset smoke sensing threshold value, a fire-fighting water pump in the energy storage cabinet is started, and the fire-fighting water pump is used for injecting water into the energy storage cabinet until the energy storage cabinet is immersed. The fire extinguishing system has the effect of improving the fire extinguishing efficiency of the fire extinguishing system.

Description

Technical Field

[0001] The present application relates to the field of fire protection technology, and in particular to a fire protection method, system, intelligent terminal and storage medium for an energy storage cabinet. Background Art

[0002] Energy storage cabinets are an important type of power storage equipment and have become a key component in the energy industry. Especially with the rapid development of new energy vehicles, energy storage cabinets will occupy a place in the future market as an optional power supply equipment for new energy vehicles. However, since the energy storage cabinets themselves store a large amount of energy, if a fire occurs in the energy storage cabinet, it will cause incalculable losses. Therefore, how to ensure the fire safety of energy storage cabinets is becoming an increasingly important issue.

[0003] The relevant technology will set a temperature sensor in the energy storage cabinet. When the internal temperature of the energy storage cabinet is detected to be abnormal, the energy storage cabinet will turn on the internal fire protection system. The fire protection system will spray aerosol into the energy storage cabinet and extinguish the fire through the physical or chemical properties of the aerosol.

[0004] With respect to the above-mentioned related technologies, the fire protection system cannot adaptively extinguish fire according to the fire scene, resulting in low fire extinguishing efficiency of the fire protection system. Summary of the invention

[0005] In order to improve the fire extinguishing efficiency of the fire protection system, the present application provides a fire protection method, system, intelligent terminal and storage medium for an energy storage cabinet.

[0006] In a first aspect, the present application provides a fire-fighting method for an energy storage cabinet, which adopts the following technical solution: A fire-fighting method for an energy storage cabinet, comprising: In response to the gas sensor detecting the target type of gas, turning on the fire-fighting fan on the energy storage cabinet, wherein the fire-fighting fan is used to exhaust the gas inside the energy storage cabinet; Acquire temperature data of a temperature sensor and smoke data of a smoke sensor, wherein the temperature sensor is used to monitor the temperature of each battery pack in the energy storage cabinet, and the smoke sensor is used to monitor the amount of smoke particles inside the energy storage cabinet; When the target temperature data in the temperature data is greater than a first preset temperature threshold, determining a target battery pack corresponding to the target temperature data; introducing a flame retardant into the target battery pack; When the target temperature data is greater than a second preset temperature threshold, or the smoke data is greater than the preset smoke threshold, a fire sprinkler device in the energy storage cabinet is turned on, the fire sprinkler device is used to spray fire aerosol into the energy storage cabinet, and the second preset temperature threshold is greater than the first preset temperature threshold; When the working time of the fire sprinkler device is greater than the first preset time and the smoke sensor data is greater than the preset smoke sensor threshold, the fire water pump in the energy storage cabinet is turned on, and the fire water pump is used to inject water into the energy storage cabinet until the energy storage cabinet is submerged.

[0007] By adopting the above technical solution, different methods are used to extinguish the fire according to different situations in the energy storage cabinet, including using fire fans for exhaust, injecting flame retardants, spraying fire aerosols, and using fire pumps for water injection. Therefore, this solution adopts different fire extinguishing methods for different scenarios, which greatly improves the fire extinguishing efficiency of the energy storage cabinet.

[0008] Optionally, determining an adjacent battery pack according to a position of the target battery pack in the energy storage cabinet; Reading adjacent temperature data of the adjacent battery pack; If there is target adjacent temperature data in the adjacent temperature data that is greater than a third preset temperature threshold, determining a target adjacent battery pack corresponding to the target adjacent temperature data, and the third preset temperature threshold is less than the first preset temperature threshold; The flame retardant is introduced into the target adjacent battery pack at a first rate, and the flame retardant is introduced into the adjacent battery packs other than the target adjacent battery pack at a second rate, wherein the first rate is greater than the second rate.

[0009] By adopting the above technical solution, flame retardants are also introduced into the adjacent battery packs with abnormal temperatures near the target battery pack to ensure that the adjacent battery packs are in a normal state. Moreover, the loss of temperature of the adjacent battery packs can be prevented from affecting the target battery pack, thereby ensuring the fire safety of the energy storage cabinet.

[0010] Optionally, the fire sprinkler device is arranged on the top of the energy storage cabinet; When the target adjacent temperature data is greater than the second preset temperature threshold, obtaining a target position of the target battery pack and obtaining an adjacent position of the adjacent battery pack; generating a battery pack area based on the target location and the adjacent location; Calculating a first distance from the fire sprinkler device to the battery pack area; Calculating a spraying speed according to the first distance, wherein the spraying speed is positively correlated with the first distance; Obtaining a spraying direction according to a first direction in which the fire sprinkler device points to the battery pack area; Control the fire sprinkler device to turn to the spraying direction; The fire sprinkler device is turned on, and the spraying speed of the fire aerosol is set to the spraying speed.

[0011] By adopting the above technical solution, the spraying direction and spraying speed of the fire sprinkler device are controlled so that the fire aerosol can reach the target battery pack and adjacent battery packs, ensuring the effect of the fire aerosol and thereby improving the efficiency of the fire protection system.

[0012] Optionally, obtaining the first direction in which the fire sprinkler device points to the battery pack area, and the second direction in which the fire fan points to the battery pack area; combining the first distance and the first direction to obtain a first vector; Calculating a second distance from the fire-fighting fan to the battery pack area; Scaling the second distance according to the spraying speed to obtain a third distance; combining the third distance and the second direction to obtain a second vector; The sum of the first vector and the second vector is calculated to obtain the spray direction.

[0013] By adopting the above technical solution, a method for obtaining the spray direction is provided, which takes the influence of the fire-fighting fan into consideration, making the spray direction more accurate.

[0014] Optionally, the fire water pump includes a main valve and a sub-valve connected in series, the main valve is used to control the water pump of the energy storage cabinet group, and the sub-valve is used to control the water pump of a single energy storage cabinet; When the working time of the fire sprinkler device reaches a second preset time, if the smoke sensor data is greater than the preset smoke sensor threshold, the main valve is opened, and the second preset time is less than the first preset time; monitoring the flow of liquid through the main valve; When the liquid flow rate is greater than the preset flow rate threshold, if the working time of the fire sprinkler device reaches the first preset time, and the smoke sensor data is greater than the preset smoke sensor threshold, the sub-valve corresponding to the energy storage cabinet is opened; When the liquid flow rate is less than the preset flow rate threshold, an alarm signal is generated.

[0015] By adopting the above technical solution, installing the main valve and sub-valve on the fire water pump can reduce the probability of leakage caused by valve aging. At the same time, it is also convenient for relevant personnel to manage the fire water pump.

[0016] Optionally, monitoring the flow of liquid between the main valve and the sub-valve; If the liquid flow condition is that liquid flow is generated, then the duration of the liquid's continuous appearance is recorded; When the duration of the continuous occurrence reaches a preset duration, calculating the average flow rate of the liquid within the duration of the continuous occurrence; If the average flow rate is greater than a preset flow rate, a leakage signal is generated.

[0017] By adopting the above technical solution, it is possible to detect whether the main valve is leaking, and when leakage occurs, a leakage signal is generated in time, so that relevant personnel can quickly understand the leakage of the main valve and prevent the energy storage cabinet from being damaged due to valve leakage.

[0018] Optionally, the main valve is opened to a preset opening, and the sub-valve is kept in a closed state; When it is detected that the liquid volume between the main valve and the sub-valve reaches a preset volume, closing the main valve; Detecting the change in volume of the liquid within a preset time period; In the case where the changed volume is greater than the preset volume, detecting the liquid flow direction between the main valve and the sub-valve; acquiring a target sub-valve located in the liquid flow direction; and generating a sub-valve abnormality signal according to the target sub-valve; When the changed volume is smaller than the preset volume, a sub-valve normal signal is generated.

[0019] By adopting the above technical solution, the performance of the sub-valve can be tested to ensure that the sub-valve can work normally, so that after the energy storage cabinet catches fire, the fire pump can play a role in time to ensure safety.

[0020] In a second aspect, the present application provides a fire protection system for an energy storage cabinet, which adopts the following technical solution: A fire protection system for an energy storage cabinet, comprising: An acquisition module, used to acquire temperature data, smoke sensor data, a first preset temperature threshold, a second preset temperature threshold, a first preset duration, a third preset temperature threshold, a first direction, a second preset duration, a preset flow threshold, liquid flow conditions, and a preset opening; A memory, used to store a program of the fire-fighting method of the energy storage cabinet described above; The program in the processor and the memory can be loaded and executed by the processor to implement any of the fire-fighting methods of the energy storage cabinet described above.

[0021] By adopting the above technical solution, different methods are used to extinguish the fire according to different situations in the energy storage cabinet, including using fire fans for exhaust, injecting flame retardants, spraying fire aerosols, and using fire pumps for water injection. Therefore, this solution adopts different fire extinguishing methods for different scenarios, which greatly improves the fire extinguishing efficiency of the energy storage cabinet.

[0022] In a third aspect, the present application provides a smart terminal, which adopts the following technical solution: An intelligent terminal is applied to an energy storage cabinet, comprising a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and execute any of the methods described above.

[0023] In a fourth aspect, the present application provides a computer storage medium capable of storing corresponding programs, which is convenient for improving the fire extinguishing efficiency of the fire protection system, and adopts the following technical solutions: A computer-readable storage medium stores a computer program that can be loaded by a processor and execute any of the fire-fighting methods of the energy storage cabinet described above.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. Different methods are used to extinguish fires according to different situations in the energy storage cabinet, including using fire fans for ventilation, injecting flame retardants, spraying fire aerosols, and using fire pumps for water injection. Therefore, this solution uses different fire extinguishing methods for different scenarios, which greatly improves the fire extinguishing efficiency of the energy storage cabinet; 2. Add flame retardant to the adjacent battery packs with abnormal temperature near the target battery pack to ensure that the adjacent battery packs are in a normal state. In addition, it can prevent the loss of temperature of the adjacent battery packs from affecting the target battery pack, thereby ensuring the fire safety of the energy storage cabinet; 3. Installing the main valve and sub-valve on the fire pump can reduce the probability of leakage caused by valve aging. At the same time, it is also convenient for relevant personnel to manage the fire pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a flow chart of a fire protection method for an energy storage cabinet provided in an embodiment of the present application.

[0026] Figure 2 It is a flow chart of a method for preventing fire of adjacent battery packs provided in an embodiment of the present application.

[0027] Figure 3 It is a flow chart of an operating method of a fire sprinkler device provided in an embodiment of the present application.

[0028] Figure 4 It is a flow chart of a method for generating a spray direction provided in an embodiment of the present application.

[0029] Figure 5 It is a flow chart of a working method of a fire water pump provided in an embodiment of the present application.

[0030] Figure 6 It is a flow chart of a fire water pump detection method 1 provided in an embodiment of the present application.

[0031] Figure 7It is a flow chart of a second detection method for a fire water pump provided in an embodiment of the present application.

[0032] Figure 8 It is a structural schematic diagram of a fire protection system of an energy storage cabinet provided in an embodiment of the present application. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figures 1 to 8 It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] The present application embodiment discloses a fire protection method for an energy storage cabinet. Figure 1 , the method comprising: Step S101: In response to the gas sensor detecting the target type of gas, the fire-fighting fan on the energy storage cabinet is turned on, and the fire-fighting fan is used to exhaust the gas inside the energy storage cabinet.

[0035] In some implementation scenarios, the energy storage cabinet can be set in the charging station or charging pile of the electric vehicle to power the electric vehicle. For example, the energy storage cabinet is connected to a solar power generation device, and the solar power generation device stores the generated electricity in the energy storage cabinet, so that the user can use the energy storage cabinet to charge the electric vehicle.

[0036] The target type gas is a gas generated when the battery pack is overheated. For example, the target type gas includes carbon monoxide or hydrogen.

[0037] In some embodiments, the gas sensor is installed at the peripheral position of each battery pack. For example, one battery pack is installed on each battery pack. In some other embodiments, multiple gas sensors are installed at preset positions of the energy storage cabinet.

[0038] A fire in an energy storage cabinet usually goes through multiple stages. In the initial stage, an erroneous chemical reaction will occur inside the battery pack, producing the target type of gas. Afterwards, as the aforementioned chemical reaction proceeds further, the temperature of the battery pack rises rapidly, causing the battery pack to catch fire. The burning battery pack will affect the operation of the surrounding battery packs, thereby inducing fire in the surrounding battery packs, causing the entire energy storage cabinet to catch fire. Therefore, in this step, it is preferred to determine whether to turn on the fire-fighting fan based on the detection results of the gas sensor. This is because in the initial stage, the heating phenomenon of the battery pack is not serious, and it is difficult to judge by temperature or smoke. In addition, the battery pack itself will also generate heat when working, and it is difficult to determine whether there is a problem with the battery pack based on temperature.

[0039] Step S102: Acquire temperature data of a temperature sensor and smoke data of a smoke sensor. The temperature sensor is used to monitor the temperature of each battery pack in the energy storage cabinet, and the smoke sensor is used to monitor the amount of smoke particles inside the energy storage cabinet.

[0040] Optionally, a temperature sensor is provided on each battery pack, and the temperature sensor can detect the temperature of the battery pack individually. The smoke sensor is provided at a preset position on the top of the energy storage cabinet.

[0041] Furthermore, a temperature sensor is provided next to the smoke sensor and is also located on the top of the energy storage cabinet. The temperature sensor is used to detect the overall temperature inside the energy storage cabinet.

[0042] Step S103: when the target temperature data in the temperature data is greater than the first preset temperature threshold, determining a target battery pack corresponding to the target temperature data.

[0043] The first preset temperature threshold is a preset empirical value, and relevant personnel can adjust the value of the first preset temperature threshold according to actual needs.

[0044] When the target temperature data is greater than the first preset temperature threshold, it indicates that a temperature abnormality occurs in the target battery pack corresponding to the target temperature data, and the target battery pack may catch fire.

[0045] Step S104: introducing a flame retardant into the target battery pack.

[0046] The flame retardant is a substance that inhibits or slows down the combustion process of combustibles. For example, the flame retardant is perfluorohexanone.

[0047] Furthermore, a flame retardant interface is provided on the battery pack, and the flame retardant can be introduced into the target battery pack through the flame retardant interface.

[0048] Step S105: When the target temperature data is greater than the second preset temperature threshold, or the smoke data is greater than the preset smoke threshold, the fire sprinkler device in the energy storage cabinet is turned on. The fire sprinkler device is used to spray fire aerosol into the energy storage cabinet. The second preset temperature threshold is greater than the first preset temperature threshold.

[0049] The second preset temperature threshold is a preset empirical value, and relevant personnel can adjust the value of the second preset temperature threshold according to actual needs.

[0050] The preset smoke threshold is a preset empirical value, and relevant personnel can adjust the value of the preset smoke threshold according to actual needs.

[0051] The fire-fighting aerosol includes at least one of a fire-extinguishing agent and a coolant.

[0052] Step S106: When the working time of the fire sprinkler device is greater than the first preset time and the smoke sensor data is greater than the preset smoke sensor threshold, the fire water pump in the energy storage cabinet is turned on to inject water into the energy storage cabinet until the energy storage cabinet is submerged.

[0053] For example, the energy storage cabinet has a sealed structure inside, so that when water is injected into the energy storage cabinet, it can be ensured that the water will not flow out of the energy storage cabinet, thereby not affecting the operation of other energy storage cabinets.

[0054] Optionally, a fire water pump is arranged at the bottom of the energy storage cabinet. After the fire water pump is turned on, water enters the energy storage cabinet from the bottom, and the battery pack is submerged from the bottom.

[0055] Optionally, a fire water pump is arranged on the top of the energy storage cabinet. After the fire water pump is turned on, water is sprayed from the top.

[0056] By adopting the above technical solution, different methods are used to extinguish the fire according to different situations in the energy storage cabinet, including using fire fans for exhaust, injecting flame retardants, spraying fire aerosols, and using fire pumps for water injection. Therefore, this solution adopts different fire extinguishing methods for different scenarios, which greatly improves the fire extinguishing efficiency of the energy storage cabinet.

[0057] In the following embodiment, when the target temperature data of the target battery pack is greater than the first preset temperature threshold, the adjacent battery packs located around the target battery pack may also be affected by the excessively high temperature of the target battery pack, causing the adjacent battery packs to also start to catch fire. To avoid the aforementioned situation, the embodiment of the present application discloses a method for preventing fires of adjacent battery packs. Figure 2 , the method comprising: Step S201: Determine adjacent battery packs according to the position of the target battery pack in the energy storage cabinet.

[0058] An adjacent battery pack refers to a battery pack that is in spatial contact with the target battery pack.

[0059] Optionally, the temperature data carries the location data of the battery pack. Exemplarily, the location data (i, j) indicates the battery pack at the i-th row and j-th column in the energy storage cabinet. For example, when the target battery pack is at the 2nd row and 2nd column, the adjacent battery packs are the battery packs at the 2nd row and 1st column, the 2nd row and 3rd column, the 1st row and 2nd column, and the 3rd row and 2nd column.

[0060] Step S202: Read adjacent temperature data of adjacent battery packs.

[0061] Exemplarily, the location information of the adjacent data packets is obtained, and the adjacent temperature data is retrieved from the temperature data according to the location information of the adjacent data packets.

[0062] Exemplarily, the control system sends a data request to the temperature sensor corresponding to the adjacent battery pack. After receiving the data request, the temperature sensor sends the adjacent temperature data to the control system.

[0063] Step S203: If there is target adjacent temperature data in the adjacent temperature data that is greater than the third preset temperature threshold, determine the target adjacent battery pack corresponding to the target adjacent temperature data, and the third preset temperature threshold is less than the first preset temperature threshold.

[0064] The third preset temperature threshold is a preset empirical value, and relevant personnel can adjust the specific value of the third preset temperature threshold according to actual needs.

[0065] When the position of the target adjacent battery pack is greater than the third preset temperature threshold, the target adjacent battery pack may also catch fire, so it is necessary to introduce a flame retardant into the adjacent battery pack in a subsequent step to ensure that the adjacent battery pack does not catch fire.

[0066] Step S204: introducing the flame retardant into the target adjacent battery pack at a first rate, and introducing the flame retardant into adjacent battery packs other than the target adjacent battery pack at a second rate, wherein the first rate is greater than the second rate.

[0067] Passing flame retardant into the target adjacent battery at the first rate can greatly reduce the probability of fire in the target adjacent battery and prevent the target adjacent battery pack from catching fire. At the same time, it is also necessary to pass flame retardant into the adjacent battery packs other than the target adjacent battery pack at the second rate so that these adjacent battery packs will not be affected by the target battery pack.

[0068] In some other embodiments, the flame retardant is introduced into adjacent battery packs at a first rate.

[0069] By adopting the above technical solution, flame retardants are also introduced into the adjacent battery packs with abnormal temperatures near the target battery pack to ensure that the adjacent battery packs are in a normal state. Moreover, the loss of temperature of the adjacent battery packs can be prevented from affecting the target battery pack, thereby ensuring the fire safety of the energy storage cabinet.

[0070] In the following embodiments, when using a fire sprinkler device, it is necessary to consider the impact of the operation mode of the fire sprinkler device on the target battery pack. Therefore, the embodiment of the present application discloses a method for operating a fire sprinkler device. Figure 3 , the method comprising: Step S301: when the target adjacent temperature data is greater than a second preset temperature threshold, the target position of the target battery pack is acquired, and the adjacent position of the adjacent battery pack is acquired.

[0071] The fire sprinkler device is installed on the top of the energy storage cabinet.

[0072] When the target adjacent temperature data is greater than the second preset temperature threshold, it means that the target battery pack and the adjacent battery pack are likely to catch fire, and the status of the target battery pack and the adjacent battery pack is difficult to control. Therefore, in this case, it is necessary to make corresponding processing for the target battery pack and the adjacent battery pack in time.

[0073] Step S302: Generate a battery pack area based on the target position and adjacent positions.

[0074] The battery pack area refers to the coverage area of ​​the target battery pack and the adjacent battery pack. Exemplarily, the first coverage area of ​​the target battery pack is generated based on the battery pack size with the target position as the center. The second coverage area of ​​the adjacent battery pack is generated based on the battery pack size with the adjacent position as the center. The union of the first coverage area and the second coverage area is calculated to obtain the battery pack area.

[0075] Step S303: Calculate the first distance from the fire sprinkler device to the battery pack area.

[0076] The first distance refers to the shortest distance from the fire sprinkler to the battery pack area. Alternatively, the first distance refers to the average distance from the fire sprinkler to the battery pack area.

[0077] Exemplarily, according to the shape of the battery pack area, a number of sampling points are randomly sampled in the battery pack area. The distance from the fire sprinkler area to each sampling point is calculated to obtain a number of sampling distances. The average of the number of sampling distances is calculated to obtain the first distance.

[0078] Step S304: Calculate the spraying speed according to the first distance, and the spraying speed is positively correlated with the first distance.

[0079] Exemplarily, in a preset data mapping table, the spraying speed corresponding to the first distance is retrieved.

[0080] Step S305: Obtain a spraying direction according to the first direction in which the fire sprinkler device points to the battery pack area.

[0081] Exemplarily, the center point of the battery pack area is obtained, and the center point is the center of gravity, centroid or geometric center of the battery pack area. A first direction of the fire sprinkler pointing to the center point is used as the spraying direction.

[0082] Exemplarily, the center point of the battery pack area is obtained, and the first direction of the fire sprinkler pointing to the center point is obtained. A projection area of ​​the battery pack area in the first direction is generated. The geometric center of the aforementioned projection area is obtained. The direction in which the fire sprinkler points to the geometric center of the projection area is used as the spraying direction.

[0083] Step S306: Control the fire sprinkler device to turn to the spraying direction.

[0084] Exemplarily, the fire sprinkler device includes a motor, and the motor can control the spraying direction of the nozzle on the fire sprinkler device. Further, the spraying direction of the fire sprinkler device is adjusted by controlling the motor.

[0085] Step S307: Turn on the fire sprinkler device and set the spraying speed of the fire aerosol to the spraying speed.

[0086] Exemplarily, the opening of the valve on the fire sprinkler device is set according to the spraying speed, and the opening and closing degree of the valve is controlled to be adjusted according to the aforementioned opening, so that the spraying speed of the fire aerosol of the fire sprinkler device is the spraying speed.

[0087] By adopting the above technical solution, the spraying direction and spraying speed of the fire sprinkler device are controlled so that the fire aerosol can reach the target battery pack and adjacent battery packs, ensuring the effect of the fire aerosol and thereby improving the efficiency of the fire protection system.

[0088] The present application embodiment discloses a method for generating a spray direction. Figure 4 , the method comprising: Step S401: Acquire a first direction of the fire sprinkler pointing to the battery pack area, and a second direction of the fire fan pointing to the battery pack area.

[0089] Exemplarily, the center point of the battery pack area is obtained, and the center point is the center of gravity, centroid or geometric center of the battery pack area. The first direction is obtained according to the direction in which the fire sprinkler device points to the center point.

[0090] Exemplarily, the center point of the battery pack area is obtained, and the second direction is obtained according to the direction in which the fire-fighting fan points to the battery pack area.

[0091] Step S402: Combine the first distance and the first direction to obtain a first vector.

[0092] Optionally, a spatial coordinate system is established, wherein the x-axis of the spatial coordinate system is set based on the length of the energy storage cabinet, the y-axis is set based on the width of the energy storage cabinet, and the z-axis is set based on the height of the energy storage cabinet. The fire sprinkler position coordinates of the fire sprinkler device in the spatial coordinate system are obtained. The fire sprinkler position coordinates are used as the vector starting point, and a first vector is obtained according to the first distance and the first direction.

[0093] Step S403: Calculate the second distance from the fire fan to the battery pack area.

[0094] Exemplarily, the center point of the battery pack area is obtained, and the distance from the fire-fighting fan to the center point is calculated to obtain a second distance.

[0095] Step S404: scaling the second distance according to the spraying speed to obtain a third distance.

[0096] Exemplarily, the scaling factor is retrieved according to the preset scaling relationship of the spraying speed, and the second distance is scaled by the scaling factor to obtain the third distance.

[0097] Step S405: Combine the third distance and the second direction to obtain a second vector.

[0098] Optionally, a spatial coordinate system is established. The position coordinates of the fire fan in the spatial coordinate system are obtained. The position coordinates of the fire fan are used as the vector starting point, and a second vector is obtained according to the third distance and the second direction.

[0099] Step S406: Calculate the sum of the first vector and the second vector to obtain the spraying direction.

[0100] Exemplarily, in the spatial coordinate system, the sum of the first vector and the second vector is calculated to obtain the vector sum. The fire sprinkler position coordinates are used as the vector starting point, and the sprinkler direction is obtained according to the vector sum.

[0101] By adopting the above technical solution, a method for obtaining the spray direction is provided, which takes the influence of the fire-fighting fan into consideration, making the spray direction more accurate.

[0102] In the following embodiments, a fire pump is provided on the energy storage cabinet. However, considering that the service life of the energy storage cabinet is generally long, if the fire pump is directly connected to the energy storage cabinet, the fire pump may leak due to the increase in the service life of the fire pump, causing water to enter the energy storage cabinet and cause the energy storage cabinet to malfunction. In order to solve the above problems, the embodiments of the present application disclose a working method of a fire pump. Figure 5 , the method comprising: Step S501: When the working time of the fire sprinkler device reaches a second preset time, if the smoke sensor data is greater than the preset smoke sensor threshold, the main valve is opened, and the second preset time is less than the first preset time.

[0103] It should be noted that, in this embodiment, the fire water pump includes a main valve and a sub-valve connected in series, the main valve is used to control the water pump of the energy storage cabinet group, and the sub-valve is used to control the water pump of a single energy storage cabinet.

[0104] When the working time of the fire sprinkler reaches the second preset time, if the smoke sensor data is also greater than the preset smoke sensor threshold, it means that the fire situation of the energy storage cabinet is getting worse, and it is likely that water needs to be injected into the energy storage cabinet to extinguish the fire. Therefore, in this step, the main valve needs to be opened first as a preparation.

[0105] Step S502: Monitor the liquid flow through the main valve.

[0106] Exemplarily, a flow sensor is provided on the main valve, and the liquid flow passing through the main valve is obtained by the flow sensor.

[0107] Step S503: When the liquid flow rate is greater than the preset flow rate threshold, if the working time of the fire sprinkler device reaches the first preset time, and the smoke sensor data is greater than the preset smoke sensor threshold, the sub-valve corresponding to the energy storage cabinet is opened.

[0108] When the liquid flow rate is greater than the preset flow rate threshold, it indicates that the fire in the energy storage cabinet is already serious and the fire in the energy storage cabinet must be extinguished in a short time, otherwise the fire in the energy storage cabinet may affect other energy storage cabinets. Therefore, the sub-valve corresponding to the energy storage cabinet is opened to allow water to enter the energy storage cabinet and immerse the energy storage cabinet to extinguish the fire in the energy storage cabinet.

[0109] Step S504: when the liquid flow rate is less than a preset flow rate threshold, an alarm signal is generated.

[0110] When the liquid flow rate is less than the preset flow threshold, it means that the amount of water passing through the main valve is small, which will affect the fire extinguishing of the energy storage cabinet. Therefore, an alarm signal will be generated in this step to notify relevant personnel.

[0111] Optionally, the alarm signal may include an audible or visual signal.

[0112] Furthermore, after the alarm signal is generated, the alarm signal is sent to the responsible person terminal.

[0113] By adopting the above technical solution, installing the main valve and sub-valve on the fire water pump can reduce the probability of leakage caused by valve aging. At the same time, it is also convenient for relevant personnel to manage the fire water pump.

[0114] In the following embodiments, during the use of the fire pump, it is necessary to monitor the use of the main valve and the sub-valve in real time to prevent the valve from leaking due to aging. Therefore, the embodiment of the present application discloses a detection method for a fire pump. Figure 6 , the method comprising: Step S601: monitor the liquid flow between the main valve and the sub-valves.

[0115] The liquid flow condition is used to describe whether there is liquid between the main valve and the sub-valve, as well as the flow rate of the liquid.

[0116] In some embodiments, a water detection sensor is further provided between the main valve and the sub-valve, and the water detection sensor is used to detect whether water passes through the main valve.

[0117] Step S602: If the liquid flow condition is that liquid flow is generated, then the duration of the liquid's continuous appearance is recorded.

[0118] When the water detection sensor generates a reading, it is considered that the liquid flow situation is liquid flow. It should be noted that in actual scenarios, it is not guaranteed that the main valve can be completely sealed. Therefore, when liquid flow occurs, it cannot be determined whether the liquid flow is caused by leakage of the main valve.

[0119] The duration of continuous occurrence refers to the duration of the water detection sensor detecting water. In some embodiments, at a first moment, the liquid flow condition changes from generating liquid flow to not generating liquid flow. At a second moment, the liquid flow condition changes from not generating liquid flow to generating liquid flow, and the second moment is after the first moment. If the difference between the second moment and the first moment is less than the preset moment difference, the liquid flow condition corresponding to the period between the first moment and the second moment is set to generating liquid flow.

[0120] Step S603: when the duration of the continuous occurrence reaches the preset duration, the average flow rate of the liquid within the duration of the continuous occurrence is calculated.

[0121] The preset duration is a preset experience value, and relevant personnel can adjust the specific value of the preset duration according to actual needs.

[0122] Exemplarily, flow readings within a continuous duration are obtained, and the average of the flow readings is calculated to obtain an average flow.

[0123] Step S604: If the average flow rate is greater than the preset flow rate, a leakage signal is generated.

[0124] In some other embodiments, if the average flow rate is less than the preset flow rate, step S603 is continued.

[0125] By adopting the above technical solution, it is possible to detect whether the main valve is leaking, and when leakage occurs, a leakage signal is generated in time, so that relevant personnel can quickly understand the leakage of the main valve and prevent the energy storage cabinet from being damaged due to valve leakage.

[0126] In the following examples, Figure 6 Similar to the embodiment shown, it is also necessary to detect the sealing performance of the sub-valve to prevent leakage of the sub-valve. Therefore, the embodiment of the present application discloses a second detection method for a fire pump. Figure 7 , the method comprising: Step S701: Open the main valve to a preset opening and keep the sub-valves in a closed state.

[0127] The preset opening is a preset empirical value, and relevant personnel can adjust the preset opening according to actual needs.

[0128] Opening the main valve to a preset opening and keeping the sub-valve closed allows water to enter between the main valve and the sub-valve, thereby testing the sealing performance of the sub-valve.

[0129] Step S702: When it is detected that the liquid volume between the main valve and the sub-valve reaches a preset volume, the main valve is closed.

[0130] The preset volume is a preset empirical value, and relevant personnel can adjust the preset volume according to actual needs.

[0131] In some embodiments, the liquid flow rate through the main valve is monitored in real time, and an integral operation is performed based on the liquid flow rate to obtain the liquid volume.

[0132] Step S703: Detect the change in liquid volume within a preset time period.

[0133] Furthermore, a water level sensor is installed between the main valve and the sub-valve, the water level sensor is installed near the main valve, and the pipeline near the main valve is in a vertical state. Within a preset time, the liquid volume between the main valve and the sub-valve is detected by the water level sensor.

[0134] Step S704: When the changed volume is greater than the preset volume, the liquid flow direction between the main valve and the sub-valve is detected.

[0135] When the changed volume is greater than the preset volume, it indicates that there is a leak in the pipeline between the main valve and the sub-valve or the sealing performance of the sub-valve is reduced.

[0136] In another embodiment of the present application, when the changed volume is smaller than the preset volume, step S703 is continued.

[0137] Step S705: Acquire the target sub-valve located in the direction of liquid flow.

[0138] Exemplarily, flow information is obtained through a flow sensor close to the main valve, and the flow information includes liquid flow direction and liquid flow rate. The liquid flow direction is extracted from the flow information, and the target sub-valve is determined according to the liquid flow direction.

[0139] Step S706: Generate a sub-valve abnormal signal according to the target sub-valve.

[0140] The sub-valve abnormality signal is used to indicate that the target sub-valve is abnormal. Optionally, the sub-valve abnormality signal also includes at least one of the number, size, and model of the sub-valve.

[0141] Step S707: When the changed volume is less than the preset volume, a sub-valve normal signal is generated.

[0142] When the changed volume is smaller than the preset volume, it indicates that there is no leakage in the pipeline between the main valve and the sub-valve or the sealing performance of the sub-valve is good.

[0143] By adopting the above technical solution, the performance of the sub-valve can be tested to ensure that the sub-valve can work normally, so that after the energy storage cabinet catches fire, the fire pump can play a role in time to ensure safety.

[0144] Based on the same inventive concept, the present application embodiment provides a fire protection system for an energy storage cabinet, please refer to Figure 8 The system comprises: The acquisition module 801 is used to acquire temperature data, smoke sensor data, a first preset temperature threshold, a second preset temperature threshold, a first preset time, a third preset temperature threshold, a first direction, a second preset time, a preset flow threshold, liquid flow conditions, and a preset opening; A memory 802, used to store a program of the fire-fighting method of the energy storage cabinet described above; Processor 803, the program in the memory can be loaded and executed by the processor to implement any of the fire-fighting methods of the energy storage cabinet described above.

[0145] By adopting the above technical solution, different methods are used to extinguish the fire according to different situations in the energy storage cabinet, including using fire fans for exhaust, injecting flame retardants, spraying fire aerosols, and using fire pumps for water injection. Therefore, this solution adopts different fire extinguishing methods for different scenarios, which greatly improves the fire extinguishing efficiency of the energy storage cabinet.

[0146] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0147] An embodiment of the present application provides a computer-readable storage medium storing a computer program that can be loaded by a processor and executed for a fire-fighting method of an energy storage cabinet.

[0148] Computer storage media include, for example, various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks or optical disks.

[0149] Based on the same inventive concept, an embodiment of the present application provides an intelligent terminal, including a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executes a fire-fighting method of an energy storage cabinet.

[0150] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0151] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any feature disclosed in this specification (including the abstract and drawings), unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

Claims

1. A fire-fighting method for an energy storage cabinet, characterized in that: The method comprises: In response to the gas sensor detecting the target type of gas, turning on the fire-fighting fan on the energy storage cabinet, wherein the fire-fighting fan is used to exhaust the gas inside the energy storage cabinet; Acquire temperature data of a temperature sensor and smoke data of a smoke sensor, wherein the temperature sensor is used to monitor the temperature of each battery pack in the energy storage cabinet, and the smoke sensor is used to monitor the amount of smoke particles inside the energy storage cabinet; When the target temperature data in the temperature data is greater than a first preset temperature threshold, determining a target battery pack corresponding to the target temperature data; introducing a flame retardant into the target battery pack; When the target temperature data is greater than a second preset temperature threshold, or the smoke sensor data is greater than a preset smoke sensor threshold, a fire sprinkler device in the energy storage cabinet is turned on, the fire sprinkler device being used to spray fire aerosol into the energy storage cabinet, and the second preset temperature threshold is greater than the first preset temperature threshold; When the working time of the fire sprinkler device is greater than the first preset time and the smoke sensor data is greater than the preset smoke sensor threshold, the fire water pump in the energy storage cabinet is turned on, and the fire water pump is used to inject water into the energy storage cabinet until the energy storage cabinet is submerged.

2. The fire-fighting method of the energy storage cabinet according to claim 1, characterized in that: The method further comprises: Determine an adjacent battery pack according to the position of the target battery pack in the energy storage cabinet; Reading adjacent temperature data of the adjacent battery pack; If there is target adjacent temperature data in the adjacent temperature data that is greater than a third preset temperature threshold, determining a target adjacent battery pack corresponding to the target adjacent temperature data, and the third preset temperature threshold is less than the first preset temperature threshold; The flame retardant is introduced into the target adjacent battery pack at a first rate, and the flame retardant is introduced into the adjacent battery packs other than the target adjacent battery pack at a second rate, wherein the first rate is greater than the second rate.

3. The fire-fighting method of the energy storage cabinet according to claim 2, characterized in that: The fire sprinkler device is arranged on the top of the energy storage cabinet; The method further comprises: When the target adjacent temperature data is greater than the second preset temperature threshold, obtaining a target position of the target battery pack and obtaining an adjacent position of the adjacent battery pack; generating a battery pack area based on the target location and the adjacent location; Calculating a first distance from the fire sprinkler device to the battery pack area; Calculating a spraying speed according to the first distance, wherein the spraying speed is positively correlated with the first distance; Obtaining a spraying direction according to a first direction in which the fire sprinkler device points to the battery pack area; Control the fire sprinkler device to turn to the spraying direction; The fire sprinkler device is turned on, and the spraying speed of the fire aerosol is set to the spraying speed.

4. The fire-fighting method of the energy storage cabinet according to claim 3, characterized in that: The obtaining of the spraying direction according to the first direction in which the fire sprinkler device points to the battery pack area includes: Acquire the first direction in which the fire sprinkler device points to the battery pack area, and the second direction in which the fire fan points to the battery pack area; combining the first distance and the first direction to obtain a first vector; Calculating a second distance from the fire-fighting fan to the battery pack area; Scaling the second distance according to the spraying speed to obtain a third distance; combining the third distance and the second direction to obtain a second vector; The sum of the first vector and the second vector is calculated to obtain the spray direction.

5. The fire-fighting method of the energy storage cabinet according to claim 1, characterized in that: The fire water pump comprises a main valve and a sub-valve connected in series, the main valve is used to control the water pump of the energy storage cabinet group, and the sub-valve is used to control the water pump of a single energy storage cabinet; The method further comprises: When the working time of the fire sprinkler device reaches a second preset time, if the smoke sensor data is greater than the preset smoke sensor threshold, the main valve is opened, and the second preset time is less than the first preset time; monitoring the flow of liquid through the main valve; When the liquid flow rate is greater than the preset flow rate threshold, if the working time of the fire sprinkler device reaches the first preset time, and the smoke sensor data is greater than the preset smoke sensor threshold, the sub-valve corresponding to the energy storage cabinet is opened; When the liquid flow rate is less than the preset flow rate threshold, an alarm signal is generated.

6. The fire fighting method of the energy storage cabinet according to claim 5, characterized in that: The method further comprises: Monitoring the flow of liquid between the main valve and the sub-valve; If the liquid flow condition is that liquid flow is generated, then the duration of the liquid's continuous appearance is recorded; When the duration of the continuous occurrence reaches a preset duration, calculating the average flow rate of the liquid within the duration of the continuous occurrence; If the average flow rate is greater than a preset flow rate, a leakage signal is generated.

7. The fire-fighting method of the energy storage cabinet according to claim 6, characterized in that: The method further comprises: Open the main valve to a preset opening and keep the sub-valve in a closed state; When it is detected that the liquid volume between the main valve and the sub-valve reaches a preset volume, closing the main valve; Detecting the change in volume of the liquid within a preset time period; In the case where the changed volume is greater than the preset volume, detecting the liquid flow direction between the main valve and the sub-valve; acquiring a target sub-valve located in the liquid flow direction; and generating a sub-valve abnormality signal according to the target sub-valve; When the changed volume is smaller than the preset volume, a sub-valve normal signal is generated.

8. A fire protection system for an energy storage cabinet, characterized in that: The system comprises: An acquisition module, used to acquire temperature data, smoke sensor data, a first preset temperature threshold, a second preset temperature threshold, a first preset duration, a third preset temperature threshold, a first direction, a second preset duration, a preset flow threshold, liquid flow conditions, and a preset opening; A memory for storing a program of a fire-fighting method for an energy storage cabinet according to any one of claims 1 to 7; The program in the memory can be loaded and executed by the processor to implement the fire fighting method of the energy storage cabinet as described in any one of claims 1 to 7.

9. An intelligent terminal, characterized in that: The method is applied to an energy storage cabinet, comprising a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executes the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: A computer program is stored which can be loaded by a processor and execute the method according to any one of claims 1 to 7.

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