Fire extinguishing simulation precision verification method of energy storage box, electronic equipment and storage medium

Abstract

The embodiment of the invention discloses a fire extinguishing simulation precision verification method for an energy storage box, electronic equipment and a storage medium. The fire extinguishing simulation precision verification method comprises the steps that a simulation model of the energy storage box is constructed; determining the sum of the volume of a box body corresponding to the energy storage box and the volume of components in the energy storage box; calculating a first volume fraction corresponding to a fire extinguishing material of the energy storage box according to the sum of the volume of the box body and the volume of the internal components of the energy storage box; on the basis of the simulation model, simulating a second volume fraction corresponding to a fire extinguishing material used for fire extinguishing of the energy storage box; and verifying the fire extinguishing simulation precision of the energy storage box based on the first volume fraction and the second volume fraction. According to the scheme, the using amount of the fire extinguishing material can be adjusted according to the precision verification result, and the problem that the using amount of the fire extinguishing material is too large or too small when a fire occurs is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage, and particularly relates to a method for verifying the accuracy of fire extinguishing simulation of an energy storage box, an electronic device, and a storage medium. Background Art

[0002] An energy storage container is a device that integrates an energy storage system in a standard container. As an efficient and flexible energy storage device, it plays an increasingly important role in the new energy field. The continuous progress of its technology and the expansion of application scenarios will provide strong support for the global energy transformation.

[0003] When a serious thermal runaway occurs in the battery pack inside the energy storage container, the battery pack will emit a large amount of combustible gas into the container, and the battery pack may catch fire. At this time, the fire protection system will spray fire extinguishing materials into the container. The fire extinguishing materials are usually stored in a large high-pressure liquid storage tank inside the container and are sprayed out through a nozzle connected to the liquid storage tank when needed, and are all sprayed out at once. At present, the amount of fire extinguishing materials can be determined by simulation. However, in actual applications, there are still problems of excessive or insufficient amount of fire extinguishing materials determined based on the simulation results, that is, the amount of fire extinguishing materials cannot be accurately calculated. Summary of the Invention

[0004] Embodiments of the present application provide a method for verifying the accuracy of fire extinguishing simulation of an energy storage box, an electronic device, and a storage medium, which can accurately calculate the amount of fire extinguishing materials and improve the safety of the energy storage box.

[0005] Embodiments of the present application provide a method for verifying the accuracy of fire extinguishing simulation of an energy storage box, including:

[0006] Construct a simulation model of the energy storage box;

[0007] Determine the volume of the box body corresponding to the energy storage box and the sum of the volumes of the internal components of the energy storage box;

[0008] Calculate a first volume fraction of the fire extinguishing materials corresponding to the energy storage box according to the volume of the box body and the sum of the volumes of the internal components of the energy storage box;

[0009] On the basis of the simulation model, simulate a second volume fraction of the fire extinguishing materials used for extinguishing the fire of the energy storage box;

[0010] Verify the accuracy of the fire extinguishing simulation of the energy storage box based on the first volume fraction and the second volume fraction.

[0011] Optionally, in some embodiments of the present application, the calculating a first volume fraction of the fire extinguishing materials corresponding to the energy storage box according to the volume of the box body and the sum of the volumes of the internal components of the energy storage box includes:

[0012] Calculate the difference between the volume of the box body and the volume of the internal components of the energy storage box to obtain the distribution volume available for the fire extinguishing material to be distributed in the energy storage box;

[0013] Obtain the fire extinguishing parameters corresponding to the fire extinguishing material;

[0014] Calculate the first volume fraction corresponding to the fire extinguishing material in the energy storage box according to the distribution volume and the fire extinguishing parameters.

[0015] Optionally, in some embodiments of the present application, the calculating the first volume fraction corresponding to the fire extinguishing material in the energy storage box according to the distribution volume and the fire extinguishing parameters includes:

[0016] Obtain a preset formula;

[0017] Calculate the first volume fraction corresponding to the fire extinguishing material in the energy storage box according to the preset formula, the distribution volume and the fire extinguishing parameters.

[0018] Optionally, in some embodiments of the present application, the calculating the first volume fraction corresponding to the fire extinguishing material in the energy storage box based on the preset formula, the distribution volume and the fire extinguishing parameters includes:

[0019] Obtain the mass flow rate and spraying time of the fire extinguishing material from the fire extinguishing parameters;

[0020] Substitute the distribution volume, the mass flow rate and the spraying time into the preset formula to calculate the first volume fraction corresponding to the fire extinguishing material in the energy storage box.

[0021] Optionally, in some embodiments of the present application, the constructing a simulation model of the energy storage box includes:

[0022] Establish a geometric model corresponding to the energy storage box;

[0023] Simplify the geometric model to obtain the simulation model of the energy storage box.

[0024] Optionally, in some embodiments of the present application, the simplifying the geometric model to obtain the simulation model of the energy storage box includes:

[0025] Determine the target area in the energy storage box that affects the distribution of the fire extinguishing material;

[0026] Simplify the geometric model based on the determined target area to obtain the simulation model of the energy storage box.

[0027] Optionally, in some embodiments of the present application, the simulating the second volume fraction corresponding to the fire extinguishing material used for extinguishing the fire in the energy storage box on the basis of the simulation model includes:

[0028] Obtain simulation parameters;

[0029] Based on the simulation parameters and the computational fluid dynamics method, simulate the second volume fraction of the fire extinguishing material used for extinguishing the fire in the energy storage tank on the basis of the simulation model.

[0030] Optionally, in some embodiments of the present application, the verifying the fire extinguishing simulation accuracy of the energy storage tank based on the first volume fraction and the second volume fraction includes:

[0031] Calculate the difference between the first volume fraction and the second volume fraction;

[0032] Verify the fire extinguishing simulation accuracy of the energy storage tank according to the ratio between the difference between the first volume fraction and the second volume fraction and the second volume fraction.

[0033] Correspondingly, the present application further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein when the processor executes the program, it performs the steps of any one of the above methods for verifying the fire extinguishing simulation accuracy of the energy storage tank.

[0034] The present application further provides a computer-readable storage medium, where the storage medium stores a computer program, and when the computer program is executed by a processor, it implements the steps of any one of the above methods for verifying the fire extinguishing simulation accuracy of the energy storage tank.

[0035] The embodiments of the present application provide a method, an electronic device, and a storage medium for verifying the fire extinguishing simulation accuracy of an energy storage tank. After constructing a simulation model of the energy storage tank, determine the volume of the tank body corresponding to the energy storage tank and the sum of the volumes of the internal components of the energy storage tank. Then, according to the volume of the tank body and the sum of the volumes of the internal components of the energy storage tank, calculate the first volume fraction of the fire extinguishing material corresponding to the energy storage tank. Then, on the basis of the simulation model, simulate the second volume fraction of the fire extinguishing material used for extinguishing the fire in the energy storage tank. Finally, based on the first volume fraction and the second volume fraction, verify the fire extinguishing simulation accuracy of the energy storage tank. The solution for verifying the fire extinguishing simulation accuracy of the energy storage tank provided by the present application uses the first volume fraction of the fire extinguishing material corresponding to the energy storage tank and the second volume fraction of the fire extinguishing material used for simulating the fire extinguishing of the energy storage tank to verify the fire extinguishing simulation accuracy of the energy storage tank. Before the energy storage tank operates, the dosage of the fire extinguishing material can be adjusted according to the accuracy verification result, avoiding the problem of excessive or insufficient dosage of the fire extinguishing material when a fire occurs. Description of the Drawings

[0036] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0037] Figure 1 is a schematic flowchart of a method for verifying the fire extinguishing simulation accuracy of an energy storage box provided by an embodiment of the present application;

[0038] Figure 2 is a schematic structural diagram of an electronic device provided by an embodiment of the present application. Specific embodiments

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0040] The embodiments of the present application provide a method for verifying the fire extinguishing simulation accuracy of an energy storage box, an electronic device, and a storage medium.

[0041] Among them, the fire extinguishing simulation accuracy verification solution of the energy storage box can be specifically applied to a terminal. The terminal can include a tablet computer or a personal computer (PC, Personal Computer). The terminal can establish a wired or wireless connection with a server. The server can include an independently operating server or a distributed server, or can also include a server cluster composed of multiple servers.

[0042] The following will be described in detail separately. It should be noted that the description order of the following embodiments does not limit the priority order of the embodiments.

[0043] A method for verifying the fire extinguishing simulation accuracy of an energy storage box includes: constructing a simulation model of the energy storage box; determining the volume of the box body corresponding to the energy storage box and the sum of the volumes of the internal components of the energy storage box; calculating the first volume fraction corresponding to the fire extinguishing material of the energy storage box according to the volume of the box body and the sum of the volumes of the internal components of the energy storage box; simulating the second volume fraction corresponding to the fire extinguishing material used for extinguishing the fire of the energy storage box on the basis of the simulation model; and verifying the fire extinguishing simulation accuracy of the energy storage box based on the first volume fraction and the second volume fraction.

[0044] Please refer to Figure 1 , Figure 1It is a schematic flowchart of a method for verifying the fire extinguishing simulation accuracy of an energy storage box provided by an embodiment of the present application. The specific process of the method for verifying the fire extinguishing simulation accuracy of the energy storage box can be as follows:

[0045] 101. Construct a simulation model of the energy storage box.

[0046] The simulation model of the energy storage box is a virtual model used to simulate the internal physical phenomena (such as the distribution of fire extinguishing materials, thermal runaway, etc.) of the energy storage box.

[0047] First, determine that the problem to be solved by the simulation is thermal runaway simulation. Then, collect the geometric dimensions and internal component information of the energy storage box. At the same time, obtain the physical properties and operating condition parameters of the fire extinguishing materials. Finally, through simulation software, construct a simulation model of the energy storage box based on the obtained data.

[0048] It should be noted that complex geometric shapes may lead to the accumulation of numerical errors, especially in the processing of boundary conditions and initial conditions. Therefore, the model of the energy storage box can be simplified to improve the reliability of the simulation results.

[0049] Optionally, in some embodiments of the present application, the step of "constructing a simulation model of the energy storage box" may specifically include:

[0050] Establish a geometric model corresponding to the energy storage box;

[0051] Simplify the geometric model to obtain a simulation model of the energy storage box.

[0052] For example, specifically, obtain the detailed geometric dimensions of the energy storage box from design drawings or actual measurements, including the external dimensions of the box body, the dimensions and positions of internal components (such as battery packs, brackets, pipes, etc.). Then, use modeling software (such as ANSYS SpaceClaim) to create a three-dimensional geometric model of the energy storage box. Identify and retain the areas that have an important impact on the simulation target, such as the positions of battery packs, sprinkler heads, ventilation openings, etc. Simplify complex geometric shapes into simpler forms, such as simplifying circular or elliptical pipes into rectangular pipes and simplifying complex brackets into straight lines or simple geometric shapes. Remove the detailed features that have less impact on the simulation results, such as threads, small holes, decorative elements, etc. Optionally, in some embodiments of the present application, the models before and after simplification can be compared to ensure that the key areas and structural components are correctly retained and the simplified model can still reflect the actual physical phenomena.

[0053] Simplifying the geometric model is to improve the efficiency of simulation calculation, reduce the computational resource requirements, improve the quality of mesh generation, enhance the physical rationality of the model, improve the simulation accuracy, facilitate analysis and verification, and meet the actual application requirements. The purpose of simplification is to reduce unnecessary complexity while retaining the key physical features, thereby improving the overall efficiency and reliability of the simulation work.

[0054] Optionally, in some embodiments of the present application, the step of "simplifying the geometric model to obtain a simulation model of the energy storage box" may specifically include:

[0055] Determine the target area inside the energy storage box that affects the distribution of the fire extinguishing material;

[0056] Based on the determined target area, simplify the geometric model to obtain a simulation model of the energy storage box.

[0057] Among them, the target area refers to the area inside the energy storage box that has a significant impact on the distribution of the fire extinguishing material. The target area may include: nozzle position: the spraying point of the fire extinguishing material, which directly affects the initial distribution of the fire extinguishing material; battery pack area: the battery pack is a key area that needs to be protected, and the distribution effect of the fire extinguishing material directly affects the fire extinguishing effect; ventilation openings and exhaust openings: the airflow at these positions will affect the diffusion and distribution of the fire extinguishing material; obstacles and structural components: any internal structural components that may hinder or change the flow path of the fire extinguishing material.

[0058] First, ensure that all target areas (such as nozzle position and battery pack position) are retained in the simplified model, and their geometric features are accurately represented. For areas that do not affect the distribution of the fire extinguishing material, they can be simplified or ignored. For example, complex brackets can be simplified to simple geometric shapes, or details such as small holes and threads can be ignored. For sharp edges and discontinuous surfaces that may cause mesh generation problems, smooth them. According to the target area, gradually simplify the geometric model. Boolean operations (such as union, difference) can be used to modify complex geometric shapes. During the simplification process, continuously check whether the model still meets the requirements of the target area. If necessary, compare it with the actual physical model or design drawings. After the simplification is completed, conduct a preliminary mesh generation test to ensure that the model can generate high-quality meshes.

[0059] 102. Determine the sum of the volume of the box body corresponding to the energy storage box and the volumes of the internal components of the energy storage box.

[0060] The sum of the volumes of the internal components of the energy storage box refers to the total volume of all internal components (such as battery packs, brackets, pipes, etc.) inside the energy storage box. Among them, for each internal component, its dimensions can be obtained from the design drawings or actual measurements, and then the volume can be calculated. If the component is a regular geometric shape, the corresponding volume formula can be used for calculation. For irregular shapes, three-dimensional scanning or CAD software can be used to calculate the volume.

[0061] 103. Calculate the first volume fraction corresponding to the fire extinguishing material of the energy storage box according to the volume of the box body and the sum of the volumes of the internal components of the energy storage box.

[0062] For example, specifically, determine the volume vj of the box body and the sum vd of the volumes of the internal components, and then calculate the difference between the volume vj of the box body and the sum vd of the volumes of the internal components to obtain the gas domain volume vq, which refers to the volume inside the energy storage box available for gas distribution. Then, calculate the first volume fraction corresponding to the fire extinguishing material of the energy storage box based on the gas domain volume vq.

[0063] Optionally, in some embodiments of the present application, the step of "calculating the first volume fraction corresponding to the fire extinguishing material of the energy storage box according to the volume of the box body and the sum of the volumes of the internal components of the energy storage box" may specifically include:

[0064] Calculate the difference between the volume of the box body and the sum of the volumes of the internal components of the energy storage box to obtain the distribution volume available for the fire extinguishing material in the energy storage box;

[0065] Obtain the fire extinguishing parameters corresponding to the fire extinguishing material;

[0066] Calculate the first volume fraction corresponding to the fire extinguishing material of the energy storage box according to the distribution volume and the fire extinguishing parameters.

[0067] The distribution volume refers to the volume inside the energy storage box available for the fire extinguishing material to be distributed, and the fire extinguishing parameters refer to the parameters related to the spraying of the fire extinguishing material, such as the mass flow rate qp of the nozzle, the spraying time t, and the gaseous density ρ of the fire extinguishing material. The first volume fraction refers to the average volume fraction of the fire extinguishing material in the distribution volume calculated theoretically. Specifically, the volume of the fire extinguishing material can be calculated according to the distribution volume and the fire extinguishing parameters, and then its proportion in the distribution volume can be calculated.

[0068] Optionally, in some embodiments of the present application, the step of "calculating the first volume fraction corresponding to the fire extinguishing material of the energy storage box according to the distribution volume and the fire extinguishing parameters" may specifically include:

[0069] Obtain a preset formula;

[0070] Calculate the first volume fraction corresponding to the fire extinguishing material of the energy storage box according to the preset formula, the distribution volume, and the fire extinguishing parameters.

[0071] The preset formula refers to the formula for calculating the average volume fraction of the fire extinguishing material. For example, the first volume fraction al = the volume vp of the fire extinguishing material gas ejected / the distribution volume vq can be used to calculate the average volume fraction (i.e., the first volume fraction) of the volume of the fire extinguishing material in the distribution volume through the preset formula.

[0072] Optionally, in some embodiments of the present application, the step of "calculating the first volume fraction corresponding to the fire extinguishing material of the energy storage box according to the preset formula, the distribution volume, and the fire extinguishing parameters" may specifically include:

[0073] Obtain the mass flow rate and spraying time of the fire extinguishing material from the fire extinguishing parameters;

[0074] Substitute the distribution volume, mass flow rate, and spraying time into a preset formula to calculate the first volume fraction corresponding to the fire extinguishing material in the energy storage tank.

[0075] Among them, the mass flow rate qp refers to the mass of the fire extinguishing material ejected by the nozzle per unit time, usually in kilograms per second (kg / s). The spraying time tp refers to the duration of the nozzle spraying the fire extinguishing material, usually in seconds (s).

[0076] For example, if the fire extinguishing material is perfluoromethylcyclohexane, the gas volume of perfluoromethylcyclohexane is vp, the mass flow rate of the nozzle is qp, and the spraying time is tp. Given that the gaseous density of perfluoromethylcyclohexane is ρ, then vp = qp × tp ÷ ρ, and al = vp ÷ vq = qp × tp ÷ ρ ÷ vq.

[0077] The mass flow rate qp of the nozzle = 0.1 kg / s, the spraying time tp = 60 s, the gaseous density ρ of perfluoromethylcyclohexane = 4 kg / m 3 、the volume vj of the box body of the energy storage tank = 10 m 3 、the sum of the volumes vd of the internal components of the energy storage tank = 2 m 3 , calculate the distribution volume vq = 0 m3 - 2 m 3 = 8 m 3 , calculate the volume vq of the ejected perfluoromethylcyclohexane gas = (0.1 kg / s × 60 s) / 4 kg / m 3 = 1.5 m 3 , calculate the first volume fraction al = 1.5 m 3 / 8 m 3 = = 0.1875, that is, the first volume fraction al is 0.1875.

[0078] 104. Based on the simulation model, simulate the second volume fraction corresponding to the fire extinguishing material used in the energy storage tank fire.

[0079] For example, if the fire extinguishing material is perfluoroethyl ketone, use the computational fluid dynamics (CFD) method to simulate the flow and distribution of perfluoromethylcyclohexane gas in the energy storage tank. Ensure that the total mass of the perfluoromethylcyclohexane gas is equal to the ejected mass. Calculate the average volume fraction af (i.e., the second volume fraction) of the perfluoromethylcyclohexane gas in the energy storage tank.

[0080] Optionally, in some embodiments of the present application, the step of "based on the simulation model, simulate the second volume fraction corresponding to the fire extinguishing material used in the energy storage tank fire" may specifically include:

[0081] Obtain simulation parameters;

[0082] Based on the simulation parameters and using the computational fluid dynamics method, on the basis of the simulation model, simulate the second volume fraction of the fire extinguishing material used for extinguishing the energy storage tank.

[0083] For example, specifically, set the mass flow rate qp and spraying time tp of the nozzle, and the physical properties of the fire extinguishing material, such as gaseous density ρ, viscosity, specific heat capacity, etc. At the same time, set the initial conditions, such as the temperature, pressure, and gas components inside the energy storage tank; and set the boundary conditions, such as the spraying boundary of the nozzle, the flow boundary of the ventilation opening, the thermal boundary of the wall surface, etc. Then, use computational fluid dynamics (CFD) software (such as ANSYS Fluent, COMSOL Multiphysics, etc.) to perform simulation calculations. Simulate the flow and distribution of the fire extinguishing material in the energy storage tank, and thereby simulate the second volume fraction of the fire extinguishing material used for extinguishing the energy storage tank.

[0084] 105. Based on the first volume fraction and the second volume fraction, verify the fire extinguishing simulation accuracy of the energy storage tank.

[0085] For example, calculate the difference θ between the first volume fraction al and the second volume fraction af. If the difference θ is less than 10%, it is considered that the simulation accuracy is reliable, that is, |af - a1| < 10%.

[0086] Optionally, in some embodiments of the present application, the step of "verifying the fire extinguishing simulation accuracy of the energy storage tank based on the first volume fraction and the second volume fraction" may specifically include:

[0087] Calculate the difference between the first volume fraction and the second volume fraction;

[0088] Verify the fire extinguishing simulation accuracy of the energy storage tank according to the ratio between the difference between the first volume fraction and the second volume fraction and the second volume fraction.

[0089] For example, specifically, calculate the difference θ between the first volume fraction and the second volume fraction, and then calculate the ratio of the difference θ to the second volume fraction af, that is, |af - a1| / af| < 10%. If the error exceeds the threshold, it is necessary to adjust the parameters in the simulation model to improve the simulation accuracy. For example, adjust the Courant - Friedrichs - Lewy number (CFL number) to control the matching of the time step and the spatial grid. Specifically, if af > al, reduce the CFL number; if af < al, increase the CFL number.

[0090] An embodiment of the present application provides a method for verifying the fire extinguishing simulation accuracy of an energy storage box. After constructing a simulation model of the energy storage box, the volume of the box body corresponding to the energy storage box and the sum of the volumes of the internal components of the energy storage box are determined. Then, according to the volume of the box body and the sum of the volumes of the internal components of the energy storage box, the first volume fraction corresponding to the fire extinguishing material of the energy storage box is calculated. Next, based on the simulation model, the second volume fraction corresponding to the fire extinguishing material used for simulating the fire extinguishing of the energy storage box is simulated. Finally, based on the first volume fraction and the second volume fraction, the fire extinguishing simulation accuracy of the energy storage box is verified. The fire extinguishing simulation accuracy verification solution of the energy storage box provided by the present application uses the first volume fraction corresponding to the fire extinguishing material of the energy storage box and the second volume fraction corresponding to the fire extinguishing material used for simulating the fire extinguishing of the energy storage box to verify the fire extinguishing simulation accuracy of the energy storage box. Before the energy storage box operates, the dosage of the fire extinguishing material can be adjusted according to the accuracy verification result to avoid the problem of excessive or insufficient dosage of the fire extinguishing material when a fire occurs.

[0091] In addition, an embodiment of the present application also provides an electronic device, as Figure 2 shown, which shows a schematic structural diagram of the electronic device involved in the embodiment of the present application. Specifically:

[0092] The electronic device may include a processor 301 with one or more processing cores, a memory 302 with one or more computer-readable storage media, a power supply 303, an input unit 304, and other components. Those skilled in the art can understand that Figure 2 the structural diagram of the electronic device shown in

[0093] does not limit the electronic device, and it may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements. Among them:

[0094] The memory 302 can be used to store software programs and modules. The processor 301 executes various functional applications and the fire extinguishing simulation accuracy verification of the energy storage box by running the software programs and modules stored in the memory 302. The memory 302 may mainly include a program storage area and a data storage area. Among them, the program storage area can store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the electronic device. In addition, the memory 302 may include high-speed random access memory and may also include non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices. Correspondingly, the memory 302 may also include a memory controller to provide the processor 301 with access to the memory 302.

[0095] The electronic device further includes a power supply 303 for supplying power to each component. Preferably, the power supply 303 can be logically connected to the processor 301 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system. The power supply 303 may also include any components such as one or more DC or AC power supplies, a recharge system, a power failure detection circuit, a power converter or inverter, and a power status indicator.

[0096] The electronic device may further include an input unit 304, which can be used to receive input digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function controls.

[0097] Although not shown, the electronic device may further include a display unit, etc., which will not be elaborated here. Specifically, in this embodiment, the processor 301 in the electronic device will load the executable files corresponding to the processes of one or more application programs into the memory 302 according to the following instructions, and the processor 301 will run the application programs stored in the memory 302 to realize various functions as follows:

[0098] Construct a simulation model of the energy storage box; determine the volume of the box body corresponding to the energy storage box and the sum of the volumes of the internal components of the energy storage box; calculate the first volume fraction of the fire extinguishing material corresponding to the energy storage box according to the volume of the box body and the sum of the volumes of the internal components of the energy storage box; simulate the second volume fraction of the fire extinguishing material used for extinguishing the energy storage box on the basis of the simulation model; verify the fire extinguishing simulation accuracy of the energy storage box based on the first volume fraction and the second volume fraction.

[0099] For the specific implementation of each of the above operations, reference can be made to the previous embodiments, which will not be elaborated here.

[0100] After building the simulation model of the energy storage box, the embodiments of the present application determine the volume of the box body corresponding to the energy storage box and the sum of the volumes of the internal components of the energy storage box. Then, according to the volume of the box body and the sum of the volumes of the internal components of the energy storage box, the first volume fraction corresponding to the fire extinguishing material of the energy storage box is calculated. Then, based on the simulation model, the second volume fraction corresponding to the fire extinguishing material used for extinguishing the energy storage box is simulated. Finally, based on the first volume fraction and the second volume fraction, the fire extinguishing simulation accuracy of the energy storage box is verified. The fire extinguishing simulation accuracy verification solution of the energy storage box provided by the present application uses the first volume fraction corresponding to the fire extinguishing material of the energy storage box and the second volume fraction corresponding to the fire extinguishing material used for extinguishing the energy storage box to verify the fire extinguishing simulation accuracy of the energy storage box. Before the energy storage box operates, the dosage of the fire extinguishing material can be adjusted according to the accuracy verification result, avoiding the problems of excessive or insufficient dosage of the fire extinguishing material when a fire occurs.

[0101] Those of ordinary skill in the art can understand that all or part of the steps in the above-mentioned various methods can be completed by instructions or by controlling relevant hardware through instructions. The instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0102] Therefore, the embodiments of the present application provide a storage medium, which stores multiple instructions that can be loaded by a processor to execute the steps in any of the fire extinguishing simulation accuracy verification methods of the energy storage box provided by the embodiments of the present application. For example, the instructions can execute the following steps:

[0103] Build a simulation model of the energy storage box; determine the volume of the box body corresponding to the energy storage box and the sum of the volumes of the internal components of the energy storage box; calculate the first volume fraction corresponding to the fire extinguishing material of the energy storage box according to the volume of the box body and the sum of the volumes of the internal components of the energy storage box; simulate the second volume fraction corresponding to the fire extinguishing material used for extinguishing the energy storage box based on the simulation model; verify the fire extinguishing simulation accuracy of the energy storage box based on the first volume fraction and the second volume fraction.

[0104] For the specific implementation of each of the above operations, reference can be made to the previous embodiments and will not be elaborated here.

[0105] Among them, the storage medium may include: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, etc.

[0106] Since the instructions stored in the storage medium can execute the steps in any of the fire extinguishing simulation accuracy verification methods for the energy storage box provided by the embodiments of the present application, the beneficial effects achievable by any of the fire extinguishing simulation accuracy verification methods for the energy storage box provided by the embodiments of the present application can be realized. For details, refer to the previous embodiments and will not be repeated here.

[0107] The above has introduced in detail a fire extinguishing simulation accuracy verification method, an electronic device, and a storage medium for an energy storage box provided by the embodiments of the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A method for verifying the fire extinguishing simulation accuracy of an energy storage box, characterized in that: include: Build a simulation model of the energy storage tank; Determine the sum of the volume of the box body corresponding to the energy storage box and the volume of the internal components of the energy storage box; Calculating a first volume fraction corresponding to the fire extinguishing material of the energy storage box according to the sum of the volume of the box body and the volume of the internal components of the energy storage box; Based on the simulation model, simulating a second volume fraction corresponding to the fire extinguishing material used to extinguish the fire in the energy storage box; Based on the first volume fraction and the second volume fraction, the fire extinguishing simulation accuracy of the energy storage tank is verified.

2. The fire extinguishing simulation accuracy verification method according to claim 1, characterized in that: The calculating, according to the sum of the volume of the box body and the volume of the internal components of the energy storage box, a first volume fraction corresponding to the fire extinguishing material of the energy storage box comprises: Calculating the difference between the volume of the box body and the sum of the volumes of the internal components of the energy storage box to obtain the distribution volume of the energy storage box available for the fire extinguishing material to be distributed; Obtaining fire extinguishing parameters corresponding to the fire extinguishing material; A first volume fraction corresponding to the fire extinguishing material in the energy storage tank is calculated according to the distribution volume and the fire extinguishing parameter.

3. The fire extinguishing simulation accuracy verification method according to claim 2 is characterized in that: The calculating, according to the distribution volume and the fire extinguishing parameter, a first volume fraction corresponding to the fire extinguishing material of the energy storage tank comprises: Get the preset formula; According to the preset formula, the distribution volume and the fire extinguishing parameter, a first volume fraction corresponding to the fire extinguishing material of the energy storage box is calculated.

4. The fire extinguishing simulation accuracy verification method according to claim 3 is characterized in that: The calculating the first volume fraction corresponding to the fire extinguishing material of the energy storage tank based on the preset formula, the distribution volume and the fire extinguishing parameter includes: Obtaining the mass flow rate and spraying time of the fire extinguishing material from the fire extinguishing parameters; The distribution volume, mass flow rate and spraying time are substituted into the preset formula to calculate the first volume fraction corresponding to the fire extinguishing material in the energy storage box.

5. The fire extinguishing simulation accuracy verification method according to any one of claims 1 to 4, characterized in that: The construction of the simulation model of the energy storage box includes: Establish the geometric model corresponding to the energy storage box; The geometric model is simplified to obtain a simulation model of the energy storage box.

6. The fire extinguishing simulation accuracy verification method according to claim 5, characterized in that: The simplification of the geometric model to obtain the simulation model of the energy storage box includes: Determining a target area within the energy storage box that affects the distribution of fire extinguishing materials; The geometric model is simplified based on the determined target area to obtain a simulation model of the energy storage box.

7. The fire extinguishing simulation accuracy verification method according to any one of claims 1 to 6, characterized in that: The second volume fraction corresponding to the fire extinguishing material used for extinguishing the fire in the energy storage box is simulated based on the simulation model, including: Get simulation parameters; Based on the simulation parameters and the computational fluid dynamics method, on the basis of the simulation model, a second volume fraction corresponding to the fire extinguishing material used for extinguishing the fire in the energy storage tank is simulated.

8. The fire extinguishing simulation accuracy verification method according to any one of claims 1 to 6, characterized in that: The verifying the fire extinguishing simulation accuracy of the energy storage box based on the first volume fraction and the second volume fraction includes: calculating a difference between the first volume fraction and the second volume fraction; The fire extinguishing simulation accuracy of the energy storage tank is verified according to the ratio between the difference between the first volume fraction and the second volume fraction and the second volume fraction.

9. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the steps of the fire extinguishing simulation accuracy verification method for the energy storage box as described in any one of claims 1-8 are implemented.

10. A computer-readable storage medium, characterized in that: A computer program is stored thereon, wherein when the computer program is executed by a processor, the steps of the method for verifying the accuracy of fire extinguishing simulation of the energy storage box as described in any one of claims 1 to 8 are implemented.

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