Condenser system analysis method, device, equipment, storage medium and program product

Abstract

The invention provides a condenser system analysis method and device, equipment, a storage medium and a program product, and the method comprises the steps: carrying out the parameter analysis of a target condenser, and constructing a condenser model based on an analysis result; the analysis result comprises time change information of condenser parameters; determining the time step length of the one-dimensional system analysis model based on the condenser parameters at the initial moment; the one-dimensional system analysis model is used for performing numerical simulation on the target condenser; based on the time change information, the condenser parameters at the initial moment and the time step length, determining parameter information at a target moment; the target moment is determined based on the initial moment and the time step length; and determining a parameter analysis result of the target condenser based on the one-dimensional system analysis model and the parameter information. According to the method, the constructed condenser model is coupled with the one-dimensional system analysis model, so that the problem that the analysis of the condenser system is not accurate enough in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of condenser analysis, and in particular, to a condenser system analysis method, device, equipment, storage medium and program product. Background Art

[0002] In the analysis of power systems, the existing condenser analysis methods mainly include the following two: a simulation analysis method based on one-dimensional flow approximation and a zero-dimensional analysis method based on lumped parameters. However, due to the complex thermohydraulic phenomena of multiple processes, multiple scales and multiple phases in the working process of the condenser (for example, condensation outside the steam pipe, steam condensation transport and heat and mass transfer between vapor and liquid phases), and the complex internal geometric structure of the condenser, the one-dimensional simulation method has problems of difficult calculation convergence and low calculation efficiency. And the zero-dimensional analysis method based on lumped parameters usually adopts the lumped parameter method for important equipment components or equipment in the entire power system, and cannot reflect the flow characteristics of the fluid in the pipeline, resulting in low analysis accuracy. Therefore, currently in the process of power system-level simulation modeling analysis, the calculation and analysis capabilities for the transient performance of condensers and power conversion systems are insufficient. Summary of the Invention

[0003] The present invention provides a condenser system analysis method, device, equipment, storage medium and program product, which are used to solve the defect that the existing analysis of condensers in power systems is not accurate enough, and realize the accurate analysis of the condenser system.

[0004] The present invention provides a condenser system analysis method, including the following steps: Conduct parameter analysis on the target condenser, and construct a condenser model based on the analysis results; the analysis results include the time variation information of the condenser parameters; Based on the condenser parameters at the initial moment, determine the time step of the one-dimensional system analysis model; the one-dimensional system analysis model is used to perform numerical simulation on the target condenser; Based on the time variation information, the condenser parameters at the initial moment and the time step, determine the parameter information at the target moment; the target moment is determined based on the initial moment and the time step; Based on the one-dimensional system analysis model and the parameter information, determine the parameter analysis result of the target condenser.

[0005] According to the condenser system analysis method provided by the present invention, the conducting parameter analysis on the target condenser and constructing a condenser model based on the analysis results includes: Determine the vapor phase parameters and liquid phase parameters of the target condenser; A first conservation algorithm and a second conservation algorithm are combined to obtain a process control algorithm; the first conservation algorithm is constructed based on the vapor phase parameters; the second conservation algorithm is constructed based on the liquid phase parameters; Decomposing the process control algorithm to obtain time variation information of condenser parameters; the condenser parameters include the vapor phase parameters and the liquid phase parameters; A condenser model is constructed based on the time variation information.

[0006] According to a condenser system analysis method provided by the present invention, the step of obtaining vapor phase parameters and liquid phase parameters of a target condenser comprises: The vapor phase parameters include vapor phase volume, vapor phase density, time parameter, inlet and outlet vapor phase mass flow, fluid enthalpy and vapor phase pressure; Constructing a vapor phase mass conservation algorithm based on the vapor phase volume, the vapor phase density, the first ratio, the second ratio, and the inlet and outlet vapor phase mass flows; the first ratio is determined based on the vapor phase volume and the time parameter; and the second ratio is determined based on the vapor phase density and the time parameter; The second ratio is expanded to obtain a third ratio and a fourth ratio; the third ratio is determined based on the vapor phase pressure and the time parameter; the fourth ratio is determined based on the fluid enthalpy and the time parameter.

[0007] According to a condenser system analysis method provided by the present invention, the step of obtaining vapor phase parameters and liquid phase parameters of a target condenser further includes: The vapor phase parameters also include the internal energy of the fluid, the external input work, and the inlet and outlet fluid enthalpy values; A vapor phase energy conservation algorithm is constructed based on the vapor phase volume, the vapor phase density, the time parameter, the inlet and outlet vapor phase mass flow, the fluid internal energy, the external input work, and the inlet and outlet fluid enthalpy values.

[0008] According to a condenser system analysis method provided by the present invention, determining the parameter information at a target time based on the time variation information, the condenser parameters at the initial time, and the time step includes: Obtaining upstream and downstream mass flow and enthalpy parameters of the target condenser at the initial moment; The upstream and downstream mass flows, the enthalpy parameter and the time step are input into the condenser model, and parameter change information at a target moment is obtained through analysis of the condenser model.

[0009] According to a condenser system analysis method provided by the present invention, determining the parameter analysis result of the target condenser based on the one-dimensional system analysis model and the parameter information includes: Based on the condenser model, assign the condenser pressure to the upstream outlet boundary of the condenser simulated by the one-dimensional system analysis model; Based on the condenser model, determine the downstream inlet boundary of the condenser simulated by the one-dimensional system analysis model; Based on the upstream outlet boundary and the downstream inlet boundary, determine the condenser parameters at the target moment; Based on the condenser parameters at the target moment, determine the parameter analysis result of the target condenser.

[0010] The present invention also provides a condenser system analysis device, including the following modules: A parameter analysis module, configured to perform parameter analysis on a target condenser and construct a condenser model based on the analysis result; the analysis result includes the time variation information of the condenser parameters; A time step determination module, configured to determine the time step of the one-dimensional system analysis model based on the condenser parameters at the initial moment; the one-dimensional system analysis model is used to perform numerical simulation on the target condenser; A parameter information determination module, configured to determine the parameter information at the target moment based on the time variation information, the condenser parameters at the initial moment, and the time step; the target moment is determined based on the initial moment and the time step; A condenser parameter analysis module, configured to determine the parameter analysis result of the target condenser based on the one-dimensional system analysis model and the parameter information.

[0011] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored on the memory and running on the processor. When the processor executes the computer program, the condenser system analysis method as described in any one of the above is implemented.

[0012] The present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the condenser system analysis method as described in any one of the above is implemented.

[0013] The present invention also provides a computer program product, including a computer program. When the computer program is executed by a processor, the condenser system analysis method as described in any one of the above is implemented.

[0014] The condenser system analysis method, device, equipment, storage medium and program product provided by the present invention analyze the parameters of the condenser to be analyzed, and construct a condenser model based on the analysis result of the time variation information of the condenser parameters; then, based on the condenser parameters at the initial moment, determine the time step of the one-dimensional system analysis model for numerically simulating the condenser; synthesize the above time variation information, the condenser parameters at the initial moment and the time step of the one-dimensional system analysis model to obtain the parameter information at the target moment; then, based on the one-dimensional system analysis model and the parameter information, determine the parameter analysis result of the target condenser. By coupling the constructed condenser model with the one-dimensional system analysis model, the present application solves the problem that the existing analysis of the condenser system is not accurate enough. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 is one of the flow diagrams of the condenser system analysis method provided by the present invention.

[0017] Figure 2 is the second flow diagram of the condenser system analysis method provided by the present invention.

[0018] Figure 3 is the structural diagram of the condenser system analysis device provided by the present invention.

[0019] Figure 4 is the structural diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To make the objectives, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the present invention with reference to the accompanying drawings in the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0021] The following will describe Figures 1-4 the condenser system analysis method, device, equipment, storage medium and program product of the present invention.

[0022] Figure 1It is one of the schematic flowcharts of the condenser system analysis method provided by the present invention. As shown in Figure 1 the figure, the method includes the following: Step 100: Analyze the parameters of the target condenser and construct a condenser model based on the analysis results; the analysis results include the time-varying information of the condenser parameters. Specifically, in this application, the process of constructing a condenser model based on the parameter analysis results of the target condenser includes two parts: constructing a condenser conservation equation set and solving the condenser conservation equation set. Among them, the condenser conservation equation set includes a mass conservation equation and an energy conservation equation. The steam condensation process of the condenser is divided into two parts: the vapor phase and the liquid phase. A mass conservation equation and an energy conservation equation can be constructed separately for the vapor phase, or a mass conservation equation and an energy conservation equation can be constructed separately for the liquid phase.

[0023] By solving the above condenser conservation equation set, the time-varying information of the key physical parameters in the condenser can be obtained, that is, the time-varying information of the condenser parameters (i.e., the key physical parameters) in this embodiment.

[0024] Step 200: Determine the time step of the one-dimensional system analysis model based on the condenser parameters at the initial moment; the one-dimensional system analysis model is used for numerical simulation of the target condenser. Specifically, the condenser system analysis method provided in this application also includes the coupling process of the condenser model and the one-dimensional analysis program (i.e., the one-dimensional system analysis model in this embodiment). First, initialize the one-dimensional system analysis model and the condenser model at the same time to obtain the state value input at the initial moment, that is, the condenser parameters at the initial moment in this embodiment, and complete the initialization of the one-dimensional system analysis model and the condenser model. Then, the system program calculates the time step of the one-dimensional system analysis program according to the condenser parameters at the initial moment. .

[0025] Step 300: Determine the parameter information at the target moment based on the time-varying information, the condenser parameters at the initial moment, and the time step; the target moment is determined based on the initial moment and the time step. Step 400: Determine the parameter analysis result of the target condenser based on the one-dimensional system analysis model and the parameter information.

[0026] Specifically, the coupling calculation process between the condenser model and the one-dimensional system analysis program includes: 1. Obtaining the upstream and downstream mass flow and enthalpy parameters of the condenser at the initial moment, performing condenser model calculations according to the time step of the one-dimensional system analysis program, and obtaining parameter change information in the condenser at the target moment; 2. Assigning the pressure in the condenser to the outlet boundary of the upstream pipeline model of the system program, and assigning the sum of the pressure in the condenser and the condensate liquid level pressure, as well as the condensate enthalpy value to the inlet boundary of the downstream pipeline model of the system program; 3. The one-dimensional system analysis program calculates the parameters of the condenser system at the target moment according to the boundary conditions provided by the condenser model; 4. Determine whether the target time reaches the preset time. If the target time does not reach the preset time, repeat the above content; if the target time reaches the preset time, end the calculation and obtain the parameter analysis results of the target condenser.

[0027] This embodiment performs parameter analysis on the condenser to be analyzed, constructs a condenser model based on the analysis results of the time variation information of the condenser parameters; then, based on the condenser parameters at the initial moment, determines the time step of the one-dimensional system analysis model used to perform numerical simulation of the condenser; combines the above time variation information, the condenser parameters at the initial moment, and the time step of the one-dimensional system analysis model to obtain parameter information at the target moment; then, based on the one-dimensional system analysis model and the parameter information, determines the parameter analysis results of the target condenser. This application solves the problem of inaccurate analysis of the existing condenser system by coupling the constructed condenser model with the one-dimensional system analysis model.

[0028] Figure 2 This is the second flow chart of the condenser system analysis method provided by the present invention, such as Figure 2 As shown, the method may further include: Step 110: Determine vapor phase parameters and liquid phase parameters of the target condenser; Step 120: Combine a first conservation algorithm and a second conservation algorithm to obtain a process control algorithm; the first conservation algorithm is constructed based on the vapor phase parameters; the second conservation algorithm is constructed based on the liquid phase parameters; Step 130: Decompose the process control algorithm to obtain time variation information of condenser parameters; the condenser parameters include the vapor phase parameters and the liquid phase parameters; Step 140: Construct a condenser model based on the time variation information.

[0029] Specifically, the process of constructing the condenser conservation equations is as follows: This application simplifies the complex flow and heat exchange process inside the condenser, divides the steam condensation process of the condenser into two partitions: vapor phase and liquid phase, and then lists the mass conservation equation and energy conservation equation for the vapor phase and liquid phase in the condenser respectively.

[0030] The mass and energy conservation equations for the vapor phase represent the first conservation algorithm in this embodiment, and the condenser parameters required to construct the first conservation algorithm are the vapor phase parameters in this embodiment. The mass and energy conservation equations for the liquid phase represent the second conservation algorithm in this embodiment, and the condenser parameters required to construct the second conservation algorithm are the liquid phase parameters in this embodiment. The first and second conservation algorithms are constructed simultaneously to obtain the governing equations representing the physical processes of the condenser, as shown in Formulas 1 to 5.

[0031] ; (1) ; (2) ; (3) ; (4) ; (5) The parameters in the coefficient matrix formula 1 are as follows, where, ; ; ; ; ; ; ; ; ; ; ; is the vapor phase cavitation fraction; subscript Indicates liquid phase; subscript The other parameters in Formulas 1 to 5 are explained as shown in Formulas 6 to 9 below.

[0032] The process of solving the condenser conservation equations is as follows: the Householder QR decomposition method (a numerical method that decomposes any matrix into an orthogonal matrix and an upper triangular matrix through mirror reflection transformation; its core idea is to gradually adjust the column vectors of the matrix into an upper triangular form through a series of orthogonal reflection operations while maintaining the orthogonal characteristics of the matrix) can be used to solve the condenser conservation equations to obtain information on the changes of the key physical parameters of the condenser over time, that is, the time change information in this embodiment.

[0033] This embodiment constructs a condenser model suitable for one-dimensional system analysis by dividing the steam condensation process of the condenser into two partitions: vapor phase and liquid phase.

[0034] In one embodiment, the condenser system analysis method provided by the embodiments of the present invention may further include: The vapor phase parameters include vapor phase volume, vapor phase density, time parameter, inlet and outlet vapor phase mass flow rate, fluid enthalpy value, and vapor phase pressure; Step 500: Based on the vapor phase volume, the vapor phase density, the first ratio, the second ratio, and the inlet and outlet vapor phase mass flow rate, construct a vapor phase mass conservation algorithm; the first ratio is determined based on the vapor phase volume and the time parameter; the second ratio is determined based on the vapor phase density and the time parameter; Step 600: Expand the second ratio to obtain a third ratio and a fourth ratio; the third ratio is determined based on the vapor phase pressure and the time parameter; the fourth ratio is determined based on the fluid enthalpy value and the time parameter.

[0035] Specifically, a form of the mass conservation equation for the vapor phase is as shown in Formula 6, where is the vapor phase volume, and the unit can be cubic meters; is the density, and the unit can be kilograms per cubic meter; is the time, that is, the time parameter in this embodiment; is the inlet mass flow rate (the unit can be kilograms per second); is the outlet mass flow rate; is the first ratio in this embodiment; is the second ratio in this embodiment; is the differential operator; represents the rate of change with respect to time; represents the rate of change with respect to time.

[0036] ; (6) ; (7) Further expand the second ratio in this embodiment to obtain another form of the mass conservation equation for the vapor phase, as shown in Formula 7, where is the fluid enthalpy value, and the unit can be joules per kilogram; is the pressure, that is, the vapor phase pressure in this embodiment, and the unit can be pascals; is the third ratio in this embodiment; is the fourth ratio in this embodiment; is the partial derivative operator.

[0037] In this embodiment, a vapor phase mass conservation algorithm is constructed through vapor phase parameters to complete part of the construction of the conservation equation set for the vapor phase partition.

[0038] In one embodiment, the condenser system analysis method provided by the embodiments of the present invention may further include: The vapor phase parameters further include the internal energy of the fluid, the external input work, and the fluid enthalpy values at the inlet and outlet; Step 700: Based on the vapor phase volume, the vapor phase density, the time parameter, the vapor phase mass flow at the inlet and outlet, the internal energy of the fluid, the external input work, and the fluid enthalpy values at the inlet and outlet, construct a vapor phase energy conservation algorithm.

[0039] Specifically, one form of the energy conservation equation for the vapor phase is shown in Formula 8, where is the internal energy of the fluid, and the unit can be joules per kilogram; is the inlet fluid enthalpy value, and the unit can be joules per kilogram; is the outlet fluid enthalpy value, and the unit can be joules per kilogram; is the external input power, and the unit can be watts.

[0040] ; (8) ; (9) According to the relational formula between the content and the enthalpy value, and by expanding the density differential term, another form of the energy conservation equation can be obtained, as shown in Formula 9. Formulas 8 and 9 are the vapor phase energy conservation algorithms in this embodiment.

[0041] In this embodiment, a vapor phase energy conservation algorithm is constructed through vapor phase parameters, completing the construction of another part of the conservation equation set for the vapor phase partition.

[0042] In one embodiment, the condenser system analysis method provided by the embodiments of the present invention may further include: Step 310: Obtain the mass flow and enthalpy value parameters of the upstream and downstream of the target condenser at the initial moment; Step 320: Input the upstream and downstream mass flows, the enthalpy value parameters, and the time step into the condenser model, and analyze the parameter change information at the target moment through the condenser model.

[0043] Specifically, after obtaining the time step of the one-dimensional system analysis program, obtain the mass flow rate and enthalpy value parameters of the upstream and downstream of the condenser at the moment, and perform condenser model calculation according to the time step of the one-dimensional system analysis program to obtain the parameter change information inside the condenser at the moment (i.e., the target moment in this embodiment).

[0044] In this embodiment, through the condenser model calculation, combined with the time step of the one-dimensional system analysis program, the parameter changes inside the condenser are obtained, and the coupling of the condenser model and the one-dimensional system analysis model is initially realized.

[0045] In one embodiment, the condenser system analysis method provided by the embodiments of the present invention may further include: Step 410: Based on the condenser model, assign the condenser pressure to the upstream outlet boundary of the condenser simulated by the one-dimensional system analysis model; Step 420: Based on the condenser model, determine the downstream inlet boundary of the condenser simulated by the one-dimensional system analysis model; Step 430: Based on the upstream outlet boundary and the downstream inlet boundary, determine the condenser parameters at the target moment; Step 440: Based on the condenser parameters at the target moment, determine the parameter analysis result of the target condenser.

[0046] Specifically, after obtaining the parameter change information in the condenser at the target moment, assign the pressure in the condenser to the outlet boundary of the upstream pipeline model of the system program, and assign the sum of the pressure in the condenser and the condensate liquid level pressure, as well as the condensate enthalpy value, to the inlet boundary of the downstream pipeline model of the system program; the one-dimensional system analysis program calculates according to the boundary conditions provided by the condenser model to obtain the parameters of the condenser system at the target moment. Then, determine whether the target time reaches the preset time. If the target time does not reach the preset time, repeat the above content; if the target time reaches the preset time, end the calculation to obtain the parameter analysis result of the target condenser.

[0047] By implementing the coupled calculation of the condenser model and the one-dimensional system analysis program in this embodiment, compared with the existing one-dimensional analysis and zero-dimensional analysis methods, the present invention realizes a significant improvement in the calculation efficiency of the power system while the analysis accuracy does not decrease significantly.

[0048] The condenser system analysis device provided by the present invention will be described below. The condenser system analysis device described below can be correspondingly referred to the condenser system analysis method described above.

[0049] Please refer to Figure 3 , the present invention also provides a condenser system analysis device, including: A parameter analysis module 301, configured to perform parameter analysis on a target condenser and construct a condenser model based on the analysis result; the analysis result includes the time change information of the condenser parameters; A time step determination module 302, configured to determine the time step of the one-dimensional system analysis model based on the condenser parameters at the initial moment; the one-dimensional system analysis model is used to perform numerical simulation on the target condenser; A parameter information determination module 303 is configured to determine parameter information at a target time based on the time variation information, the condenser parameters at the initial time, and the time step; the target time is determined based on the initial time and the time step; The condenser parameter analysis module 304 is configured to determine a parameter analysis result of the target condenser based on the one-dimensional system analysis model and the parameter information.

[0050] Optionally, the parameter analysis module includes: a parameter determination unit, for determining vapor phase parameters and liquid phase parameters of a target condenser; a conservation algorithm combination unit, configured to combine a first conservation algorithm and a second conservation algorithm to obtain a process control algorithm; the first conservation algorithm is constructed based on the vapor phase parameters; the second conservation algorithm is constructed based on the liquid phase parameters; a time variation information determination unit, configured to decompose the process control algorithm to obtain time variation information of condenser parameters; the condenser parameters include the vapor phase parameters and the liquid phase parameters; A condenser model building unit is used to build a condenser model based on the time variation information.

[0051] Optionally, the condenser system analysis device further includes: The vapor phase parameters include vapor phase volume, vapor phase density, time parameter, inlet and outlet vapor phase mass flow, fluid enthalpy and vapor phase pressure; a vapor phase mass conservation algorithm construction module, configured to construct a vapor phase mass conservation algorithm based on the vapor phase volume, the vapor phase density, the first ratio, the second ratio, and the inlet and outlet vapor phase mass flows; the first ratio being determined based on the vapor phase volume and the time parameter; and the second ratio being determined based on the vapor phase density and the time parameter; The second ratio is expanded to obtain a third ratio and a fourth ratio; the third ratio is determined based on the vapor phase pressure and the time parameter; the fourth ratio is determined based on the fluid enthalpy and the time parameter.

[0052] Optionally, the condenser system analysis device further includes: The vapor phase parameters also include the internal energy of the fluid, the external input work, and the inlet and outlet fluid enthalpy values; A vapor phase energy conservation algorithm construction module is used to construct a vapor phase energy conservation algorithm based on the vapor phase volume, the vapor phase density, the time parameter, the inlet and outlet vapor phase mass flow, the fluid internal energy, the external input work and the inlet and outlet fluid enthalpy values.

[0053] Optionally, the parameter information determination module includes: A parameter acquisition unit for acquiring the upstream and downstream mass flow rates and enthalpy value parameters of the target condenser at the initial moment; A parameter change information analysis unit for inputting the upstream and downstream mass flow rates, the enthalpy value parameters, and the time step into the condenser model, and analyzing to obtain the parameter change information at the target moment through the condenser model.

[0054] Optionally, the condenser parameter analysis module includes: A boundary assignment unit for assigning the condenser pressure to the upstream outlet boundary of the condenser simulated by the one-dimensional system analysis model based on the condenser model; A boundary determination unit for determining the downstream inlet boundary of the condenser simulated by the one-dimensional system analysis model based on the condenser model; A condenser parameter determination unit for determining the condenser parameters at the target moment based on the upstream outlet boundary and the downstream inlet boundary; A parameter analysis result determination unit for determining the parameter analysis result of the target condenser based on the condenser parameters at the target moment.

[0055] Figure 4 An example of a schematic physical structure diagram of an electronic device is shown as Figure 4 shown. The electronic device may include: a processor 510, a communication interface 520, a memory 530, and a communication bus 540. Among them, the processor 510, the communication interface 520, and the memory 530 complete communication with each other through the communication bus 540. The processor 510 can call the logical instructions in the memory 530 to execute the condenser system analysis method, which includes: performing parameter analysis on the target condenser, and constructing a condenser model based on the analysis result; the analysis result includes the time change information of the condenser parameters; determining the time step of the one-dimensional system analysis model based on the condenser parameters at the initial moment; the one-dimensional system analysis model is used to perform numerical simulation on the target condenser; determining the parameter information at the target moment based on the time change information, the condenser parameters at the initial moment, and the time step; the target moment is determined based on the initial moment and the time step; determining the parameter analysis result of the target condenser based on the one-dimensional system analysis model and the parameter information.

[0056] In addition, when the logical instructions in the above-mentioned memory 530 are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0057] On the other hand, the present invention also provides a computer program product. The computer program product includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the condenser system analysis method provided by the above-mentioned various methods. The method includes: performing parameter analysis on a target condenser, and constructing a condenser model based on the analysis results; the analysis results include the time variation information of the condenser parameters; based on the condenser parameters at the initial moment, determining the time step of the one-dimensional system analysis model; the one-dimensional system analysis model is used to perform numerical simulation on the target condenser; based on the time variation information, the condenser parameters at the initial moment, and the time step, determining the parameter information at the target moment; the target moment is determined based on the initial moment and the time step; based on the one-dimensional system analysis model and the parameter information, determining the parameter analysis result of the target condenser.

[0058] On another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it is implemented to execute the condenser system analysis method provided by the above-mentioned various methods. The method includes: performing parameter analysis on a target condenser, and constructing a condenser model based on the analysis results; the analysis results include the time variation information of the condenser parameters; based on the condenser parameters at the initial moment, determining the time step of the one-dimensional system analysis model; the one-dimensional system analysis model is used to perform numerical simulation on the target condenser; based on the time variation information, the condenser parameters at the initial moment, and the time step, determining the parameter information at the target moment; the target moment is determined based on the initial moment and the time step; based on the one-dimensional system analysis model and the parameter information, determining the parameter analysis result of the target condenser.

[0059] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative efforts.

[0060] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or equivalently replace some of the technical features. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for analyzing a condenser system, characterized in that, include: Performing parameter analysis on the target condenser and constructing a condenser model based on the analysis results; the analysis results include time-varying information of the condenser parameters; Determining a time step of a one-dimensional system analysis model based on the condenser parameters at the initial moment; the one-dimensional system analysis model is used to perform numerical simulation on the target condenser; Determining parameter information at a target time based on the time variation information, the condenser parameters at the initial time, and the time step; The target moment is determined based on the initial moment and the time step; Based on the one-dimensional system analysis model and the parameter information, a parameter analysis result of the target condenser is determined.

2. The condenser system analysis method according to claim 1, characterized in that, The performing parameter analysis on the target condenser and constructing a condenser model based on the analysis results includes: Determine the vapor phase parameters and liquid phase parameters of the target condenser; A first conservation algorithm and a second conservation algorithm are combined to obtain a process control algorithm; the first conservation algorithm is constructed based on the vapor phase parameters; the second conservation algorithm is constructed based on the liquid phase parameters; Decomposing the process control algorithm to obtain time variation information of condenser parameters; the condenser parameters include the vapor phase parameters and the liquid phase parameters; A condenser model is constructed based on the time variation information.

3. The condenser system analysis method according to claim 2, wherein The step of obtaining the vapor phase parameters and liquid phase parameters of the target condenser comprises: The vapor phase parameters include vapor phase volume, vapor phase density, time parameter, inlet and outlet vapor phase mass flow, fluid enthalpy and vapor phase pressure; Constructing a vapor phase mass conservation algorithm based on the vapor phase volume, the vapor phase density, the first ratio, the second ratio, and the inlet and outlet vapor phase mass flows; the first ratio is determined based on the vapor phase volume and the time parameter; and the second ratio is determined based on the vapor phase density and the time parameter; The second ratio is expanded to obtain a third ratio and a fourth ratio; the third ratio is determined based on the vapor phase pressure and the time parameter; the fourth ratio is determined based on the fluid enthalpy and the time parameter.

4. The condenser system analysis method according to claim 3, wherein The step of obtaining the vapor phase parameters and liquid phase parameters of the target condenser further includes: The vapor phase parameters also include the internal energy of the fluid, the external input work, and the inlet and outlet fluid enthalpy values; A vapor phase energy conservation algorithm is constructed based on the vapor phase volume, the vapor phase density, the time parameter, the inlet and outlet vapor phase mass flow, the fluid internal energy, the external input work, and the inlet and outlet fluid enthalpy values.

5. The condenser system analysis method according to claim 1, wherein The determining of the parameter information at the target time based on the time variation information, the condenser parameters at the initial time, and the time step includes: Obtaining upstream and downstream mass flow and enthalpy parameters of the target condenser at the initial moment; The upstream and downstream mass flows, the enthalpy parameter and the time step are input into the condenser model, and parameter change information at a target moment is obtained through analysis of the condenser model.

6. The condenser system analysis method according to claim 5, wherein, Determining the parameter analysis result of the target condenser based on the one-dimensional system analysis model and the parameter information includes: Based on the condenser model, assigning the condenser pressure to the upstream outlet boundary of the condenser simulated by the one-dimensional system analysis model; Based on the condenser model, determine the downstream inlet boundary of the condenser simulated by the one-dimensional system analysis model; Based on the upstream outlet boundary and the downstream inlet boundary, determine the condenser parameters at the target moment; Based on the condenser parameters at the target moment, determine the parameter analysis result of the target condenser.

7. A condenser system analysis device, characterized in that, It includes: A parameter analysis module, configured to perform parameter analysis on the target condenser and construct a condenser model based on the analysis result; the analysis result includes the time variation information of the condenser parameters; A time step determination module, configured to determine the time step of the one-dimensional system analysis model based on the condenser parameters at the initial moment; the one-dimensional system analysis model is used to perform numerical simulation on the target condenser; A parameter information determination module, configured to determine the parameter information at the target moment based on the time variation information, the condenser parameters at the initial moment, and the time step; The target moment is determined based on the initial moment and the time step; A condenser parameter analysis module, configured to determine the parameter analysis result of the target condenser based on the one-dimensional system analysis model and the parameter information.

8. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and running on the processor, characterized in that, When the processor executes the computer program, it implements the condenser system analysis method according to any one of claims 1 to 6.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the condenser system analysis method according to any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the condenser system analysis method according to any one of claims 1 to 6.

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