Simulation model construction method, device and equipment of nitrogen pressure stabilizer and medium

Abstract

The invention discloses a simulation model construction method and device for a nitrogen pressure stabilizer, equipment and a medium. The method comprises the following steps: determining a target nitrogen voltage stabilizer, determining physical structure parameters of the target nitrogen voltage stabilizer, and constructing a preliminary simulation model according to the physical structure parameters; and constructing a voltage stabilization mathematical model, and constructing a target simulation model corresponding to the target nitrogen voltage stabilizer according to the preliminary simulation model and the voltage stabilization mathematical model. Based on the technical scheme, the effect of constructing the dynamic simulation model corresponding to the nitrogen pressure stabilizer can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial process simulation, and in particular to a method, device, equipment and medium for constructing a simulation model of a nitrogen pressurizer. Background Art

[0002] Nitrogen pressure regulators are widely used in various industrial systems. For example, in nuclear reactor cooling systems, they maintain pressure stability, ensuring safe operation of the reactor coolant under various operating conditions. In compressed air energy storage systems, they regulate nitrogen pressure to mitigate pressure fluctuations during the energy storage process. In hot water loop systems, they balance temperature fluctuations to prevent water volume expansion or contraction.

[0003] Due to the complex internal structure and physical processes of the voltage stabilizer, traditional modeling methods are difficult to accurately simulate the dynamic behavior of the voltage stabilizer caused by changes in external conditions such as operating conditions. The simulation results often cannot meet the dynamic response analysis requirements of the voltage stabilizer equipment and related systems under complex working conditions. Summary of the Invention

[0004] The present invention provides a method, device, equipment and medium for constructing a simulation model of a nitrogen pressurizer, so as to solve the technical problem that it is currently difficult to construct a simulation model that can simulate the dynamic pressure stabilization process of the nitrogen pressurizer.

[0005] According to one aspect of the present invention, a method for constructing a simulation model of a nitrogen pressurizer is provided, the method comprising:

[0006] Determining a target nitrogen pressurizer, determining physical structural parameters of the target nitrogen pressurizer, and constructing a preliminary simulation model based on the physical structural parameters;

[0007] A pressure stabilization mathematical model is constructed, and a target simulation model corresponding to the target nitrogen pressure stabilizer is constructed based on the preliminary simulation model and the pressure stabilization mathematical model.

[0008] According to another aspect of the present invention, a device for constructing a simulation model of a nitrogen pressurizer is provided, the device comprising:

[0009] a preliminary model building module, configured to determine a target nitrogen pressurizer, determine physical structural parameters of the target nitrogen pressurizer, and build a preliminary simulation model based on the physical structural parameters;

[0010] The target model construction module is used to construct a voltage stabilization mathematical model, and to construct a target simulation model corresponding to the target nitrogen pressure stabilizer according to the preliminary simulation model and the voltage stabilization mathematical model.

[0011] According to another aspect of the present invention, an electronic device is provided, comprising:

[0012] at least one processor; and

[0013] a memory communicatively connected to the at least one processor; wherein,

[0014] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the simulation model construction method of the nitrogen regulator according to any embodiment of the present invention.

[0015] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for constructing a simulation model of a nitrogen regulator according to any embodiment of the present invention when executed.

[0016] The technical solution of the embodiment of the present invention determines a target nitrogen pressurizer and its physical structural parameters, constructs a preliminary simulation model based on the physical structural parameters, constructs a pressure stabilization mathematical model, and constructs a target simulation model corresponding to the target nitrogen pressurizer based on the preliminary simulation model and the pressure stabilization mathematical model. This achieves the effect of constructing a dynamic simulation model corresponding to the nitrogen pressurizer.

[0017] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a flow chart of a method for constructing a simulation model of a nitrogen pressurizer provided in accordance with the first embodiment of the present invention;

[0020] Figure 2 is an exemplary diagram of a nitrogen pressurizer entity provided according to an embodiment of the present invention;

[0021] Figure 3 is an exemplary diagram of a nitrogen pressurizer entity provided according to an embodiment of the present invention;

[0022] Figure 4 This is an example diagram of a liquid level change curve provided according to an embodiment of the present invention;

[0023] Figure 5 This is an example diagram of a gas-liquid phase temperature variation curve over time provided by an embodiment of the present invention;

[0024] Figure 6 This is a flow chart of a method for constructing a simulation model of a nitrogen pressurizer provided in accordance with a second embodiment of the present invention;

[0025] Figure 7 2 is a schematic structural diagram of a device for constructing a simulation model of a nitrogen pressurizer according to a third embodiment of the present invention;

[0026] Figure 8 It is a structural schematic diagram of an electronic device for implementing the method for constructing a simulation model of a nitrogen gas regulator according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] Example 1

[0030] Figure 1 A flowchart of a method for constructing a simulation model of a nitrogen pressurizer is provided for the first embodiment of the present invention. This embodiment is applicable to the case of constructing a simulation model corresponding to a pressurizer. The method can be executed by a simulation model construction device for a nitrogen pressurizer. The simulation model construction device for a nitrogen pressurizer can be implemented in the form of software and can be configured in a computer. Figure 1 As shown, the method includes:

[0031] S110 , determining a target nitrogen pressurizer, determining physical structural parameters of the target nitrogen pressurizer, and constructing a preliminary simulation model according to the physical structural parameters.

[0032] The target nitrogen pressurizer can be understood as a pneumatic device that uses high-pressure nitrogen as a pressure-stabilizing medium. In an embodiment of the present invention, the target nitrogen pressurizer is the target object of the simulation modeling. The model of the target nitrogen pressurizer can be preset according to the scene requirements and is not specifically limited here. Figure 2 For example, Figure 2 1 is an example diagram of a nitrogen regulator entity provided according to an embodiment of the present invention.

[0033] The physical structure parameters can be understood as parameters related to the physical structure of the nitrogen pressurizer. Optionally, the physical structure parameters may include at least parameters such as pressurizer volume, insulation layer thickness, radius, and wall mass. In embodiments of the present invention, the specific values ​​of the physical structure parameters of different nitrogen pressurizer models may vary in different application scenarios.

[0034] The preliminary simulation model can be understood as a physical structure simulation model of the nitrogen regulator.

[0035] S120: Constructing a voltage stabilization mathematical model, and constructing a target simulation model corresponding to the target nitrogen pressure stabilizer based on the preliminary simulation model and the voltage stabilization mathematical model.

[0036] The voltage stabilization mathematical model can be understood as a mathematical model corresponding to the voltage stabilization mechanism of the nitrogen pressurizer. The voltage stabilization mechanism can be a heat and mass transfer mechanism, which can include an energy balance mechanism and a mass balance mechanism. Alternatively, the voltage stabilization mathematical model can include an energy balance model and a mass balance model. The energy balance model can correspond to the energy balance mechanism of the nitrogen pressurizer. The mass balance model can correspond to the mass balance mechanism of the nitrogen pressurizer.

[0037] The target simulation model can be understood as a completed simulation model. In an embodiment of the present invention, the target simulation model can simulate the physical structure of the target nitrogen pressurizer and the gas-liquid equilibrium and energy transfer process of the target nitrogen pressurizer. Figure 3 For example, Figure 3 1 is an example diagram of a nitrogen regulator entity provided according to an embodiment of the present invention.

[0038] Optionally, constructing a target simulation model corresponding to the target nitrogen pressurizer according to the preliminary simulation model and the pressure stabilization mathematical model includes:

[0039] A model interface is determined, and a target simulation model corresponding to the target nitrogen pressurizer is constructed according to the model interface, the preliminary simulation model, and the pressure stabilization mathematical model.

[0040] The model interface may include an interface between the simulation model and the outside world and a data transmission interface between simulation model components. Specifically, the interface between the nitrogen pressurizer and the outside world and the data transmission interface between its components are determined to construct a target simulation model. Exemplarily, the transmission data corresponding to the interface may include heat exchange data between the cylinder side and the cylinder wall, fluid exchange data between the pressurizer and the outside world, and heat exchange data between the cylinder wall and the environment.

[0041] Based on the above embodiment scheme, the connection between the preliminary simulation model and the voltage stabilization mathematical model is achieved to obtain the target simulation model.

[0042] Optionally, after constructing a target simulation model corresponding to the target nitrogen pressurizer according to the preliminary simulation model and the pressure stabilization mathematical model, the method further includes:

[0043] The target operating condition parameters are input into the target simulation model to obtain the target nitrogen regulator simulation data; wherein the simulation data includes at least one of pressure, temperature and flow rate.

[0044] Among them, the target operating parameters can be understood as the input parameters of the target simulation model. As an optional embodiment, after the target simulation model is built, it is set to fill the stabilizer with water at a flow rate of 200kg / s at the beginning and keep it for 2 hours, then let it stand for 2 hours, and finally release water at a flow rate of 200kg / s for 2 hours; the pressure in the stabilizer is always maintained at 1MPa during the whole process. The above-mentioned data are set as target operating parameters. Furthermore, the simulation data can be understood as the operating parameters of the target simulation model during the simulation voltage stabilization work under the target operating parameters. Exemplarily, the simulation data can be liquid level data, gas phase temperature data or liquid phase temperature data, etc. Taking the input parameters of the above optional embodiment as an example, the simulation data can be as follows Figure 4 and Figure 5 As shown, Figure 4 This is an example diagram of a liquid level change curve provided according to an embodiment of the present invention. Figure 5 This is an example diagram of a gas-liquid phase temperature change curve over time provided by an embodiment of the present invention.

[0045] In actual applications, if the simulation data does not meet the scenario requirements, the input target operating parameters can be adjusted until the operating parameters that meet the requirements are obtained, so as to set the actual operating parameters for the actual nitrogen regulator.

[0046] The technical solution of the embodiment of the present invention determines a target nitrogen pressurizer and its physical structural parameters, constructs a preliminary simulation model based on the physical structural parameters, constructs a pressure stabilization mathematical model, and constructs a target simulation model corresponding to the target nitrogen pressurizer based on the preliminary simulation model and the pressure stabilization mathematical model. This achieves the effect of constructing a dynamic simulation model corresponding to the nitrogen pressurizer.

[0047] Example 2

[0048] Figure 6 This is a flow chart of a method for constructing a simulation model of a nitrogen pressurizer provided in the second embodiment of the present invention. This embodiment refines the mathematical model for constructing a pressurizer as described in the above embodiment. Figure 6 As shown, the method includes:

[0049] S210 , determining a target nitrogen pressurizer, determining physical structural parameters of the target nitrogen pressurizer, and constructing a preliminary simulation model according to the physical structural parameters.

[0050] S220: Construct a mass balance model and an energy balance model, and construct a voltage stabilization mathematical model based on the mass balance model and the energy balance model.

[0051] The mass balance model can be understood as a digital model that simulates the mass balance mechanism of the nitrogen pressurizer. In an embodiment of the present invention, the mass balance model can be determined based on a mathematical model related to mass balance and a mathematical model related to mass flow.

[0052] The energy balance model can be understood as a digital model that simulates the energy balance mechanism of the nitrogen pressurizer. In an embodiment of the present invention, the mass balance model can be determined based on a mathematical model related to energy balance and a mathematical model related to energy exchange.

[0053] Optionally, constructing a mass balance model and an energy balance model includes:

[0054] determining a plurality of first mathematical models associated with mass balance and a second mathematical model of mass flow between the plurality of first mathematical models; and determining a plurality of third mathematical models associated with energy balance and a fourth mathematical model of energy exchange between the plurality of third mathematical models;

[0055] A mass balance model is constructed based on a plurality of the first mathematical models and the second mathematical models; and an energy balance model is constructed based on a plurality of the third mathematical models and the fourth mathematical models.

[0056] The first mathematical model may be understood as a mathematical model related to mass balance. Alternatively, the first mathematical model may include a liquid phase mass balance model and a gas phase mass balance model. The second mathematical model may be understood as a mathematical model related to energy balance. Alternatively, the second mathematical model may include a liquid phase energy balance model, a gas phase energy balance model, and a pipe wall energy model.

[0057] The third mathematical model may represent the algebraic relationship between the first mathematical models. The fourth mathematical model may represent the algebraic relationship between the second mathematical models.

[0058] In the embodiment of the present invention, all mathematical models can be determined based on a language script. The language script can be a Modelica language script. The object for parsing the Modelica language script can be the MWORKS.Sysplorer software platform.

[0059] Optionally, the determining of a plurality of first mathematical models related to mass balance and a second mathematical model of mass flow between the plurality of first mathematical models comprises:

[0060] A liquid phase mass balance model and a gas phase mass balance model are determined to obtain a plurality of first mathematical models, and a condensation mass flow model and an evaporation mass flow model are determined to obtain a second mathematical model.

[0061] Optionally, determining a plurality of third mathematical models related to energy balance and a fourth mathematical model for energy exchange between the plurality of third mathematical models includes:

[0062] Determine the liquid phase energy balance model, the gas phase energy balance model and the pipe wall energy model to obtain multiple third mathematical models, and determine the gas-liquid energy exchange model, the liquid wall energy exchange model, the gas wall energy exchange model and the external wall energy exchange model to obtain a fourth mathematical model.

[0063] The liquid phase mass balance model can describe the mass conservation relationship of liquid phase substances during the pressure stabilization process. Specifically, the liquid phase mass balance model can be as follows:

[0064]

[0065] Among them, ρ l represents the liquid density, V1 represents the liquid volume, represents the mass flow rate entering the liquid phase, represents the mass flow rate of the outflowing liquid phase, represents the mass flow rate generated by evaporation, Indicates the mass flow rate generated by condensation. It should be understood that mass flow rate can be understood as the mass of fluid passing through a certain cross section per unit time, indicating the mass transfer rate of the fluid during the flow process.

[0066] Furthermore, the gas phase mass balance model can describe the mass conservation relationship of gas phase substances during the pressure stabilization process. Specifically, the gas phase mass balance model can be as follows:

[0067]

[0068] Among them, ρ v represents the gas phase density, V v represents the gas phase volume, represents the mass flow rate of the outflowing gas phase, represents the mass flow rate generated by evaporation, Indicates the mass flow rate produced by condensation.

[0069] The liquid phase energy balance model can describe the energy conservation relationship of liquid phase substances during the pressure stabilization process. Specifically, the liquid phase energy balance model can be as follows:

[0070]

[0071] Where h l represents the specific enthalpy of the liquid phase, h l,o represents the specific enthalpy of the liquid phase when it flows out, represents the liquid phase saturation specific enthalpy, represents the gas phase saturation specific enthalpy, P represents the system pressure, W vl Represents the heat energy exchanged between the gas phase and the liquid phase, W lw represents the heat energy exchanged between the liquid phase and the wall, W eh Indicates the power released by the electric heater.

[0072] Furthermore, the gas phase energy balance model can describe the energy conservation relationship of gas phase substances during the pressure stabilization process. Specifically, the gas phase energy balance model can be as follows:

[0073]

[0074] Among them, h v represents the specific enthalpy of the gas phase, h l,i represents the specific enthalpy of the liquid phase when it flows in, represents the liquid phase saturation specific enthalpy, represents the gas phase saturation specific enthalpy, P represents the system pressure, W vl Represents the heat energy exchanged between the gas phase and the liquid phase, W vw represents the heat exchange between the gas phase and the wall.

[0075] Furthermore, the pipe wall energy model can describe the energy conservation relationship between the pipe wall and the outside of the regulator during the voltage stabilization process. Specifically, the pipe wall energy model can be as follows:

[0076]

[0077] Among them, M w Indicates the quality of the pipe wall, T w represents the tube wall temperature, c p,w Represents the specific heat capacity of the tube wall, W lw Represents the heat exchange between the liquid phase and the wall, W vw Represents the heat exchange between the gas phase and the tube wall, W aw Represents the heat energy exchanged between the wall and the outside.

[0078] Furthermore, the gas-liquid energy exchange model can describe the heat energy exchange between the gas phase and the liquid phase. Specifically, the gas-liquid energy exchange model can be as follows:

[0079] W v1 =K v1 ·A p ·(T v -T1)

[0080] Among them, W vl Represents the heat exchange energy between the gas phase and the liquid phase, K v1 represents the heat exchange coefficient between the liquid phase and the gas phase, T1 represents the liquid phase temperature, (T v represents the gas phase temperature, A p Indicates the contact area between the gas phase and the liquid phase. In the embodiment of the present invention, the above heat exchange coefficient may be related to the actual scenario and is not specifically limited here.

[0081] Furthermore, the liquid-wall energy exchange model can describe the heat energy exchange between the liquid phase and the wall. Specifically, the liquid-wall energy exchange model can be as follows:

[0082] W 1w =K 1w A1 (T1-Tw)

[0083] Among them, W vl represents the heat exchange energy between the liquid phase and the wall, K lw represents the heat exchange coefficient between the liquid phase and the wall, T1 represents the liquid phase temperature, T w represents the tube wall temperature, and A1 represents the contact area between the liquid phase and the wall.

[0084] Furthermore, the gas-wall energy exchange model can describe the heat energy exchange between the gas phase and the wall. Specifically, the gas-wall energy exchange model can be as follows:

[0085] W vw =K vw ·A v ·(T v -T w )

[0086] Among them, W vw Represents the heat exchange energy between the gas phase and the tube wall, K vw represents the heat exchange coefficient between the gas phase and the wall, (T v represents the gas phase temperature, T w Indicates the pipe wall temperature, A v Represents the contact area between the gas phase and the wall.

[0087] Furthermore, the external wall energy exchange model can describe the heat energy exchange between the wall and the outside of the stabilizer. Specifically, the external wall energy exchange model can be as follows:

[0088] W wa =K wa ·A e ·(T w -T a )

[0089] Among them, W wa Represents the exchange heat energy between the wall and the outside, K wa is the ambient heat dissipation coefficient, T w Indicates the pipe wall temperature, T a ) represents the external ambient temperature, A e Represents the contact area between the wall and the exterior.

[0090] The condensing mass flow model can be used to determine the condensing mass flow. Specifically, the condensing mass flow model can be as follows:

[0091]

[0092] in, Indicates the mass flow rate generated by condensation, C cond represents the condensation coefficient, ρ v represents the gas phase density, V v represents the gas phase volume, represents the gas phase saturation specific enthalpy, h v represents the specific enthalpy of the gas phase, represents the liquid phase saturation specific enthalpy.

[0093] Furthermore, the evaporation mass flow model can be used to determine the evaporation mass flow. Specifically, the evaporation mass flow model can be as follows:

[0094]

[0095] in, Indicates the mass flow rate generated by evaporation, C evap represents the evaporation coefficient, ρ l represents the liquid density, V1 represents the liquid volume, h l represents the specific enthalpy of the liquid phase, represents the liquid phase saturation specific enthalpy, represents the liquid phase saturation specific enthalpy.

[0096] Specifically, multiple first mathematical models and second mathematical models are combined to obtain a mass balance model; multiple third mathematical models and fourth mathematical models are combined to obtain an energy balance model; and the mass balance model and the energy balance model are combined to obtain a voltage stabilization mathematical model.

[0097] Based on the above embodiment scheme, a pressure stabilization mathematical model capable of simulating the gas-liquid equilibrium and energy transfer process of the nitrogen pressurizer is constructed.

[0098] S230: Construct a target simulation model corresponding to the target nitrogen pressurizer according to the preliminary simulation model and the pressure stabilization mathematical model.

[0099] Based on the above embodiment scheme, it is possible to solve the technical problem that the traditional modeling method ignores the dynamic process of gas-liquid phase change and wall heat transfer, which makes it difficult to accurately simulate the dynamic behaviors such as pressure fluctuations and energy transfer when the working conditions change. In particular, in the case of multi-physics coupling involving heat and mass transfer, gas-liquid phase change and energy exchange, the calculation accuracy and simulation efficiency are often insufficient. In addition, in the process of system design and optimization, there is a lack of flexible and modular modeling tools, which limits the dynamic response analysis and performance evaluation of the regulator under complex working conditions. The technical solution of the present invention, the target simulation model constructed can realize the simulation of the physical structure, gas-liquid equilibrium and energy transfer process of the target ammonia regulator, and can fully simulate the internal process of the nitrogen regulator, so as to meet the technical effects of design and optimization requirements in different application scenarios.

[0100] The technical solution of an embodiment of the present invention comprises determining a target nitrogen pressurizer and its physical structural parameters, constructing a preliminary simulation model based on the physical structural parameters, constructing a mass balance model and an energy balance model, and constructing a pressure stabilization mathematical model based on the mass balance model and the energy balance model; and constructing a target simulation model corresponding to the target nitrogen pressurizer based on the preliminary simulation model and the pressure stabilization mathematical model. The target simulation model constructed by the present invention can simulate the physical structure, gas-liquid equilibrium, and energy transfer process of the target nitrogen pressurizer.

[0101] Example 3

[0102] Figure 7 This is a schematic diagram of a device for constructing a simulation model of a nitrogen regulator provided in the third embodiment of the present invention. Figure 7 As shown, the apparatus includes: a preliminary model building module 310 and a target model building module 320 .

[0103] Among them, the preliminary model construction module 310 is used to determine the target nitrogen pressurizer and determine the physical structure parameters of the target nitrogen pressurizer, and construct a preliminary simulation model based on the physical structure parameters; the target model construction module 320 is used to construct a pressure stabilization mathematical model, and construct a target simulation model corresponding to the target nitrogen pressurizer based on the preliminary simulation model and the pressure stabilization mathematical model.

[0104] The technical solution of the embodiment of the present invention determines a target nitrogen pressurizer and its physical structural parameters, constructs a preliminary simulation model based on the physical structural parameters, constructs a pressure stabilization mathematical model, and constructs a target simulation model corresponding to the target nitrogen pressurizer based on the preliminary simulation model and the pressure stabilization mathematical model. This achieves the effect of constructing a dynamic simulation model corresponding to the nitrogen pressurizer.

[0105] Optionally, the target model construction module 320 includes: a mathematical model construction unit, configured to construct a mass balance model and an energy balance model, and to construct a voltage stabilization mathematical model according to the mass balance model and the energy balance model.

[0106] Optionally, the mathematical model construction unit includes: a mathematical model construction subunit and a balance model construction subunit;

[0107] The mathematical model construction subunit is configured to determine a plurality of first mathematical models related to mass balance and a second mathematical model of mass flow between the plurality of first mathematical models; and to determine a plurality of third mathematical models related to energy balance and a fourth mathematical model of energy exchange between the plurality of third mathematical models;

[0108] The balance model construction subunit is configured to construct a mass balance model based on a plurality of the first mathematical models and the second mathematical models; and to construct an energy balance model based on a plurality of the third mathematical models and the fourth mathematical models.

[0109] Optionally, the mathematical model construction subunit is specifically used to: determine a liquid phase mass balance model and a gas phase mass balance model to obtain multiple first mathematical models, and determine a condensation mass flow model and an evaporation mass flow model to obtain a second mathematical model.

[0110] Optionally, the mathematical model construction subunit is specifically used to: determine the liquid phase energy balance model, the gas phase energy balance model, and the pipe wall energy model to obtain multiple third mathematical models, and determine the gas-liquid energy exchange model, the liquid wall energy exchange model, the liquid-gas wall energy exchange model, and the external wall energy exchange model to obtain a fourth mathematical model.

[0111] Optionally, the target model construction module 320 includes: a simulation model construction unit, configured to determine a model interface, and construct a target simulation model corresponding to the target nitrogen pressurizer according to the model interface, the preliminary simulation model, and the pressure stabilization mathematical model.

[0112] Optionally, the simulation model construction device of the nitrogen pressurizer further includes: a simulation model application module, which is used to input target operating condition parameters into the target simulation model after the target simulation model corresponding to the target nitrogen pressurizer is constructed according to the preliminary simulation model and the pressure stabilization mathematical model, so as to obtain simulation data of the target nitrogen pressurizer; wherein the simulation data includes at least one pressure stabilization data of pressure, temperature and flow.

[0113] The simulation model construction device for a nitrogen pressurizer provided in an embodiment of the present invention can execute the simulation model construction method for a nitrogen pressurizer provided in any embodiment of the present invention, and has functional modules and beneficial effects corresponding to the execution method.

[0114] Example 4

[0115] Figure 8 A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0116] like Figure 8As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., which is communicatively connected to the at least one processor 11. The memory stores a computer program that can be executed by the at least one processor. The processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 into the random access memory (RAM) 13. Various programs and data required for the operation of the electronic device 10 can also be stored in the RAM 13. The processor 11, ROM 12, and RAM 13 are connected to each other via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0117] Multiple components in the electronic device 10 are connected to the I / O interface 15, including an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0118] The processor 11 can be any general-purpose and / or specialized processing component with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any other suitable processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the method for constructing a simulation model for a nitrogen pressurizer.

[0119] In some embodiments, the method for constructing a simulation model of a nitrogen gas regulator can be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the method for constructing a simulation model of a nitrogen gas regulator described above can be performed. Alternatively, in other embodiments, processor 11 can be configured to execute the method for constructing a simulation model of a nitrogen gas regulator in any other appropriate manner (e.g., via firmware).

[0120] Various embodiments of the systems and techniques described herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system-on-chip systems (SOCs), programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0121] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The computer program may be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0122] In the context of the present invention, computer-readable storage media can be tangible media that can contain or store a computer program for use with an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. Computer-readable storage media can include but are not limited to electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, computer-readable storage media can be machine-readable signal media. More specific examples of machine-readable storage media can include electrical connections based on one or more lines, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0123] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0124] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0125] A computing system may include clients and servers. The clients and servers are typically remote from each other and typically interact via a communication network. This client-server relationship arises through computer programs running on the respective computers, creating a client-server relationship. The server may be a cloud server, also known as a cloud computing server or cloud host. This server is a hosting product within the cloud computing service ecosystem that addresses the management difficulties and limited scalability of traditional physical hosting and VPS services.

[0126] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0127] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A method for constructing a simulation model of a nitrogen regulator, characterized in that: include: Determining a target nitrogen pressurizer, determining physical structural parameters of the target nitrogen pressurizer, and constructing a preliminary simulation model based on the physical structural parameters; A pressure stabilization mathematical model is constructed, and a target simulation model corresponding to the target nitrogen pressure stabilizer is constructed based on the preliminary simulation model and the pressure stabilization mathematical model.

2. The method according to claim 1, characterized in that The construction of the voltage stabilization mathematical model includes: A mass balance model and an energy balance model are constructed, and a voltage stabilization mathematical model is constructed based on the mass balance model and the energy balance model.

3. The method according to claim 2, characterized in that The construction of the mass balance model and the energy balance model includes: determining a plurality of first mathematical models associated with mass balance and a second mathematical model of mass flow between the plurality of first mathematical models; and determining a plurality of third mathematical models associated with energy balance and a fourth mathematical model of energy exchange between the plurality of third mathematical models; A mass balance model is constructed based on a plurality of the first mathematical models and the second mathematical models; and an energy balance model is constructed based on a plurality of the third mathematical models and the fourth mathematical models.

4. The method according to claim 3, characterized in that The determining of a plurality of first mathematical models related to mass balance and a second mathematical model of mass flow between the plurality of first mathematical models comprises: A liquid phase mass balance model and a gas phase mass balance model are determined to obtain a plurality of first mathematical models, and a condensation mass flow model and an evaporation mass flow model are determined to obtain a second mathematical model.

5. The method according to claim 3, characterized in that The determining of a plurality of third mathematical models related to energy balance and a fourth mathematical model for energy exchange between the plurality of third mathematical models comprises: Determine the liquid phase energy balance model, the gas phase energy balance model and the pipe wall energy model to obtain multiple third mathematical models, and determine the gas-liquid energy exchange model, the liquid wall energy exchange model, the gas wall energy exchange model and the external wall energy exchange model to obtain a fourth mathematical model.

6. The method according to claim 1, characterized in that The step of constructing a target simulation model corresponding to the target nitrogen pressurizer according to the preliminary simulation model and the pressure stabilization mathematical model includes: A model interface is determined, and a target simulation model corresponding to the target nitrogen pressurizer is constructed according to the model interface, the preliminary simulation model, and the pressure stabilization mathematical model.

7. The method according to claim 1, characterized in that After constructing the target simulation model corresponding to the target nitrogen pressurizer according to the preliminary simulation model and the pressure stabilization mathematical model, the method further includes: The target operating condition parameters are input into the target simulation model to obtain the target nitrogen regulator simulation data; wherein the simulation data includes at least one of pressure, temperature and flow rate.

8. A simulation model construction device for a nitrogen regulator, characterized in that: include: a preliminary model building module, configured to determine a target nitrogen pressurizer, determine physical structural parameters of the target nitrogen pressurizer, and build a preliminary simulation model based on the physical structural parameters; The target model construction module is used to construct a voltage stabilization mathematical model, and to construct a target simulation model corresponding to the target nitrogen pressure stabilizer according to the preliminary simulation model and the voltage stabilization mathematical model.

9. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the method for constructing a simulation model of a nitrogen pressurizer according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for constructing a simulation model of a nitrogen pressurizer according to any one of claims 1 to 7 when executed.

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