A heating furnace simulation state detection method, device, equipment and medium

Abstract

The application discloses a kind of heating furnace simulation state detection method, device, equipment and medium.Method includes: obtaining the mass flow of each furnace tube in target heating furnace, import and export pressure difference and thermodynamic parameter;According to the information of material to be heated, the import temperature of the radiation area of hearth in target heating furnace and the import temperature of the radiation area of furnace tube of multiple continuous simulation time points are obtained;According to the import temperature of the radiation area of hearth, the import temperature of the radiation area of furnace tube and thermodynamic parameter, the outlet temperature of each region in hearth, the outlet temperature of each region in furnace tube and the mass flow of outlet of each region in hearth are calculated;So as to determine the running state of target heating furnace corresponding to simulation time point.The application embodiment can reduce the cost of obtaining the running state of heating furnace, and improve the efficiency of simulating the running state of heating furnace.

Description

Technical Field

[0001] This invention relates to the field of heating furnace technology, and in particular to a method, apparatus, equipment and medium for simulating the state of a heating furnace. Background Technology

[0002] In industrial production, heating furnaces are widely used in metal smelting, chemical engineering, and energy fields. The operating status of the heating furnace directly affects production efficiency, energy consumption, and product quality. To optimize the design and operation of heating furnaces, it is necessary to analyze their operating status and accurately obtain characteristics such as temperature, flow rate, and mass flow of the furnace chamber and furnace tubes.

[0003] Currently, the existing technology for analyzing the operating status of heating furnaces typically employs physical experiments. This involves deploying multiple sensors on the actual heating furnace to acquire temperature and flow information in various areas of the furnace chamber and furnace tubes, and then performing data analysis.

[0004] However, existing experimental methods for analyzing the operating status of heating furnaces rely on actual heating furnaces, which are costly and cannot be adjusted in real time. Summary of the Invention

[0005] This invention provides a method, apparatus, equipment, and medium for simulating the operating status of a heating furnace. The embodiments of this invention can reduce the cost of obtaining the operating status of a heating furnace and improve the efficiency of simulating the operating status of a heating furnace.

[0006] In a first aspect, embodiments of the present invention provide a method for detecting the simulation state of a heating furnace, the method comprising:

[0007] Obtain the mass flow rate, inlet and outlet pressure difference, and thermodynamic parameters of each furnace tube in the target heating furnace; the target heating furnace includes a furnace chamber and at least one furnace tube; each furnace tube is located inside the furnace chamber; the furnace chamber includes: a radiation zone, a convection zone, and an energy-saving zone; according to the zone of the furnace chamber where each furnace tube is located, the zone of each furnace tube includes: a radiation zone, a convection zone, and an energy-saving zone;

[0008] Based on the information of the material to be heated, the inlet temperature of the radiant zone of the furnace chamber and the inlet temperature of the radiant zone of the furnace tube in the target heating furnace are obtained at multiple consecutive simulation time points.

[0009] For each simulation time point, based on the inlet temperature of the radiant zone of the furnace, the inlet temperature of the radiant zone of the furnace tube, and the thermodynamic parameters, the outlet temperature of each region in the furnace, the outlet temperature of each region in the furnace tube, and the flow mass at the outlet of each region in the furnace are calculated.

[0010] At the simulation time point, the operating status of the target heating furnace corresponding to the simulation time point is determined based on the mass flow rate and inlet / outlet pressure difference of the furnace tube, the outlet temperature of each region in the furnace tube, the outlet temperature of each region in the furnace, and the flow rate and mass at the outlet of each region in the furnace.

[0011] Secondly, embodiments of the present invention also provide a heating furnace simulation state detection device, the device comprising:

[0012] The data acquisition module is used to acquire the mass flow rate, inlet and outlet pressure difference, and thermodynamic parameters of each furnace tube in the target heating furnace. The target heating furnace includes a furnace chamber and at least one furnace tube. Each furnace tube is located inside the furnace chamber. The furnace chamber includes a radiation zone, a convection zone, and an energy-saving zone. According to the zone of the furnace chamber where each furnace tube is located, the zone of each furnace tube includes a radiation zone, a convection zone, and an energy-saving zone.

[0013] The temperature acquisition module is used to acquire the inlet temperature of the radiant zone of the furnace chamber and the inlet temperature of the radiant zone of the furnace tube at multiple consecutive simulation time points based on the information of the material to be heated.

[0014] The parameter calculation module is used to calculate the outlet temperature of each region in the furnace, the outlet temperature of each region in the furnace tube, and the flow mass at the outlet of each region of the furnace at each simulation time point, based on the inlet temperature of the radiant region of the furnace, the inlet temperature of the radiant region of the furnace tube, and the thermodynamic parameters.

[0015] The operating status determination module is used to determine the operating status of the target heating furnace at the simulation time point based on the mass flow rate and inlet / outlet pressure difference of the furnace tube, the outlet temperature of each region in the furnace tube, the outlet temperature of each region in the furnace, and the flow rate and mass at the outlet of each region in the furnace.

[0016] Thirdly, embodiments of the present invention also provide a heating furnace simulation state detection device, the heating furnace simulation state detection device comprising:

[0017] At least one processor; and

[0018] A memory that is communicatively connected to at least one processor; wherein,

[0019] The memory stores a computer program that can be executed by at least one processor, such that the at least one processor is able to execute the furnace simulation state detection method according to any embodiment of the present invention.

[0020] Fourthly, embodiments of the present invention also provide a computer-readable storage medium storing computer instructions, which are used to cause a processor to execute the furnace simulation state detection method of any embodiment of the present invention.

[0021] The technical solution of this invention, by obtaining the inlet temperatures of the furnace radiant region and furnace tube radiant region at multiple consecutive simulation time points based on the information of the material to be heated, can achieve dynamic tracking of the inlet state of the furnace and furnace tube. By calculating the outlet temperature of each region of the furnace, the outlet temperature of each region of the furnace tube, and the flow mass at the outlet of each region of the furnace at the simulation time points, it can achieve accurate detection of the heat exchange efficiency and flow distribution of different regions of the heating furnace. By determining the operating state of the target heating furnace based on the mass flow rate of the furnace tube, the inlet and outlet pressure difference, and the outlet temperature and flow mass of each region at the simulation time points, it can achieve real-time diagnosis and monitoring of the heating furnace's operating state. This solves the technical problems of existing methods for analyzing the operating state of heating furnaces, which rely on real heating furnaces, are costly, and cannot be adjusted in real time. Thus, it can reduce the cost of obtaining the operating state of the heating furnace and improve the efficiency of simulating the operating state of the heating furnace.

[0022] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A flowchart of a method for detecting the simulation state of a heating furnace provided in an embodiment of the present invention;

[0025] Figure 2 A flowchart of a method for detecting the simulation state of a heating furnace provided in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of a heating furnace simulation state detection device provided in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of a heating furnace simulation state detection device provided in an embodiment of the present invention. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0030] In the technical solutions of this invention, the acquisition, storage, and application of mass flow rate, inlet and outlet pressure difference, and thermodynamic parameters of each furnace tube in the target heating furnace all comply with the provisions of relevant laws and regulations and do not violate public order and good morals.

[0031] Figure 1 This is a flowchart illustrating a method for simulating the state of a heating furnace according to an embodiment of the present invention. This embodiment is applicable to situations where the operating state of a target heating furnace is simulated. The method can be executed by a heating furnace simulation state detection device, which can be implemented in hardware and / or software.

[0032] See Figure 1 The simulated state detection method for the heating furnace shown includes:

[0033] S101. Obtain the mass flow rate, inlet and outlet pressure difference, and thermodynamic parameters of each furnace tube in the target heating furnace; the target heating furnace includes a furnace chamber and at least one furnace tube; each furnace tube is located inside the furnace chamber; the furnace chamber includes: a radiation zone, a convection zone, and an energy-saving zone; according to the zone of the furnace chamber where each furnace tube is located, the zone of each furnace tube includes: a radiation zone, a convection zone, and an energy-saving zone.

[0034] The target heating furnace refers to a heating furnace that requires simulation testing. It includes components such as the furnace chamber and furnace tubes. The target heating furnace generates heat through fuel combustion and transfers this heat to the material being heated via a heat exchange system. Different areas of the furnace chamber (radiation zone, convection zone, and energy-saving zone) correspond to different heat exchange and energy utilization efficiencies. The purpose of the target heating furnace is to serve as a heating source; its operational status is monitored through simulation methods, thereby providing a basis for optimizing the heating process of the material being heated.

[0035] Furnace tubes refer to pipes installed inside the furnace chamber of a heating furnace, used for the heat transfer process of heating materials. Through heat exchange with the furnace chamber, the furnace tubes transfer the heat energy of the furnace chamber to the materials or fluids flowing through them. Based on factors such as the properties and temperature of the fluid, energy transfer is completed, achieving heat exchange between the furnace chamber and the fluid.

[0036] Mass flow rate refers to the mass of fluid passing through a cross-section per unit time, commonly measured in kilograms per second. Mass flow rate reflects the heat transfer capacity of a fluid; as fluid passes through furnace tubes, the mass flow rate directly affects heat transfer efficiency and energy transfer rate.

[0037] The inlet and outlet pressure difference refers to the pressure difference between the inlet and outlet ends of the fluid as it flows inside the furnace tube. This pressure difference is typically determined by the fluid's flow resistance, flow velocity, and temperature variations inside and outside the furnace tube. The inlet and outlet pressure difference is the driving force required for fluid flow and affects the fluid's flow state and heat transfer efficiency during heat exchange.

[0038] Thermodynamic parameters are physical quantities that describe the thermal behavior of a substance during heat exchange. These parameters may include specific heat capacity, thermal conductivity, compressibility factor, and density, and are used to describe the energy exchange and temperature changes of a fluid. Thermodynamic parameters determine the heat exchange efficiency of a fluid, thus affecting the temperature distribution and heat transfer process in different areas of the heating furnace.

[0039] The furnace chamber refers to the area within a heating furnace used to contain and heat materials, generating heat through combustion or other methods. Made of high-temperature resistant materials, the furnace chamber can be divided into multiple zones (such as radiant, convection, and energy-saving zones), each with different temperatures, airflow patterns, and heat exchange effects. The furnace generates heat by burning fuels (such as coal gas and oil), transferring this heat to the fluid or material through different heat exchange zones. The different zones of the furnace are simulated to calculate the temperature and flow rates in each zone during the heating process, optimizing the simulated heating effect.

[0040] The radiant zone refers to the area where heat is transferred through thermal radiation. The radiant zone has the highest temperature. The convection zone refers to the area where heat is transferred through gas flow and heat exchange. The temperature in the convection zone is lower than that in the radiant zone. The energy-saving zone refers to the area used to recover waste heat and reduce heat loss. The energy-saving zone has the lowest temperature.

[0041] S102. Based on the information of the material to be heated, obtain the inlet temperature of the radiant zone of the furnace chamber and the inlet temperature of the radiant zone of the furnace tube at multiple consecutive simulation time points in the target heating furnace.

[0042] The information on the material to be heated refers to various data and parameters related to the material in the heating furnace. This information may include the material's physical properties, fluid composition, and inlet temperature, and typically includes, but is not limited to, the material's temperature, composition, density, and specific heat capacity. This information is used to determine the heating state at different points in time within the heating furnace and is monitored and adjusted in real time using simulation methods. For example, by combining historical data with the current material state, key parameters (such as temperature) at the simulation time point can be calculated.

[0043] In this context, a simulation time point refers to a specific moment in the simulation process, calculated and simulated at certain time intervals. Simulation time points are typically discrete points within a pre-defined time series in the simulation model, with each time point corresponding to a specific calculation result of the state of the heating furnace. Simulation time points are used to represent the operating state of the heating furnace at different times. By simulating the physical parameters (such as temperature, flow rate, and pressure) at each time point, the various indicators and changing trends of the material to be heated during the heating process can be predicted.

[0044] The inlet temperature can refer to the temperature at the inlet of a certain area within the furnace tube or furnace chamber. Based on the inlet temperature and the heat exchange model, the heating process of the fluid inside the furnace chamber or furnace tube can be calculated, thereby predicting the heating effect on the material.

[0045] S103. For each simulation time point, at that simulation time point, based on the inlet temperature of the radiant zone of the furnace, the inlet temperature of the radiant zone of the furnace tube, and the thermodynamic parameters, calculate the outlet temperature of each region in the furnace, the outlet temperature of each region in the furnace tube, and the flow rate mass at the outlet of each region in the furnace.

[0046] Specifically, by acquiring the inlet temperature and thermodynamic parameters of the furnace chamber and furnace tubes in the target heating furnace corresponding to multiple consecutive simulation time points, and combining thermodynamic and physical heat transfer principles, the simulation model is used to model the heat exchange process of each region of the furnace chamber (radiation region, convection region, and energy-saving region) and each region of the furnace tubes. Based on the heat transfer formula, the outlet temperature of each region is calculated using the input inlet temperature and the thermodynamic parameters of the fluid.

[0047] The outlet temperature of the furnace radiant zone can be calculated based on the inlet temperature and combustion state, while the outlet temperature of the furnace tubes is calculated based on the inlet temperature, thermal properties, and heat transfer coefficient. Using thermodynamic formulas and fluid dynamics models, combined with the gas state equation, the flow rate mass of each zone is calculated. At each simulation time point, the calculated outlet temperature and flow rate mass serve as important bases for furnace condition monitoring, further supporting the monitoring and optimization of the target furnace's operating status. By using numerical simulation methods and optimization algorithms, the accuracy and efficiency of the calculation results are improved, thereby achieving efficient monitoring and management of the furnace's simulated state.

[0048] In an optional embodiment, the outlet temperature information is unknown and needs to be calculated iteratively. Therefore, a good initial value is a key factor in whether the iteration can converge. The outlet temperature of the radiant zone furnace is a parameter required for the heat exchange calculation of each furnace tube. Therefore, a good estimate of the outlet temperature of the radiant zone furnace is crucial for the rapid convergence of the entire calculation. The outlet temperature can be calculated through the following steps: the radiant zone furnace undergoes a fuel gas combustion reaction. Assuming that combustion is an adiabatic reaction, i.e., it does not dissipate heat externally, the temperature after the reaction is calculated as the initial value of the outlet temperature of the radiant zone furnace. Since the reaction is adiabatic, the inlet and outlet enthalpy of mixing are equal. Based on the reaction configuration, the composition of the post-reaction stream can be determined. Therefore, the post-reaction temperature can be calculated and used as the initial value as the outlet temperature of the radiant zone furnace.

[0049] S104. At the simulation time point, based on the mass flow rate of the furnace tube, the pressure difference between the inlet and outlet, the outlet temperature of each region in the furnace tube, the outlet temperature of each region in the furnace, and the flow rate and mass at the outlet of each region in the furnace, determine the operating status of the target heating furnace corresponding to the simulation time point.

[0050] Specifically, based on the obtained parameters such as the mass flow rate of the furnace tubes, the inlet and outlet pressure difference, the outlet temperature of each region in the furnace tubes, the outlet temperature of each region in the furnace, and the flow rate and mass at the outlet of each region in the furnace, a simulation heating furnace model is constructed and its operating state is simulated through the following steps: First, based on the geometric parameters, thermodynamic parameters, and physical properties of the fluid in the heating furnace, the simulation model is initialized to determine its initial state. Second, based on the mass flow rate of the furnace tubes, the inlet and outlet pressure difference, and the outlet temperature of each region, the energy conversion process in each region of the furnace is simulated using the thermodynamic balance equation. Through heat transfer relationships, combined with the obtained outlet temperature and flow rate / mass, the heat load distribution, heat exchange efficiency, and energy flow in each region are calculated. The heat exchange between the furnace and the furnace tubes is dynamically simulated using the heat transfer coefficient and the heat transfer equation. Subsequently, a fluid dynamics model was used to simulate the fluid flow within the furnace tubes based on the mass flow rate and inlet / outlet pressure difference. Combining the fluid's density, viscosity, and other physical properties, the flow velocity, pressure distribution, and flow rate distribution within the furnace tubes were calculated, further deriving the flow state and heat exchange effect within the furnace tubes. During the simulation, the thermodynamic and fluid dynamic parameters were dynamically updated using a time-stepping method based on the input parameters at multiple simulation time points, thereby simulating the changes in heat load distribution, temperature gradient, and energy conversion efficiency of the heating furnace under different operating conditions. Finally, the operating state of the target heating furnace was simulated by integrating the simulation results of temperature, flow rate, and heat load of the furnace tubes and furnace chamber.

[0051] As can be seen, in this embodiment, by obtaining the inlet temperatures of the furnace radiant region and furnace tube radiant region at multiple consecutive simulation time points based on the information of the material to be heated, dynamic tracking of the furnace and furnace tube inlet states can be achieved. By calculating the outlet temperatures of each region of the furnace, the outlet temperatures of each region of the furnace tube, and the flow mass at the outlet of each region of the furnace at the simulation time points, accurate detection of the heat exchange efficiency and flow distribution in different regions of the heating furnace can be achieved. By determining the operating state of the target heating furnace based on the mass flow rate of the furnace tube, the inlet and outlet pressure difference, and the outlet temperature and flow mass of each region at the simulation time points, real-time diagnosis and monitoring of the heating furnace operating state can be achieved. This solves the technical problems of existing experimental methods for analyzing the operating state of heating furnaces, which rely on real heating furnaces, are costly, and cannot be adjusted in real time. Thus, the cost of obtaining the operating state of the heating furnace can be reduced, and the efficiency of simulating the operating state of the heating furnace can be improved.

[0052] In an optional embodiment, Figure 2The flowchart of a furnace simulation state detection method provided in this embodiment of the invention refines the process of "calculating the outlet temperature of each region in the furnace, the outlet temperature of each region in the furnace tube, and the flow rate mass at the outlet of each region in the furnace based on the inlet temperature of the radiant region of the furnace, the inlet temperature of the radiant region of the furnace tube, and thermodynamic parameters" into "for each simulation time point, at that simulation time point, based on the inlet temperature of the radiant region of the furnace, the inlet temperature of the radiant region of the furnace tube, and thermodynamic parameters, calculate the outlet temperature of the radiant region of the furnace and the outlet temperature of the radiant region of the furnace tube; based on the outlet temperature of the radiant region of the furnace, calculate the outlet temperature of the convection region of the furnace and the outlet temperature of the energy-saving region of the furnace; obtain the inlet temperature of the convection region of the furnace tube and the inlet temperature of the energy-saving region of the furnace tube; based on the inlet temperature of the convection region of the furnace tube and the inlet temperature of the energy-saving region of the furnace tube, calculate the outlet temperature of the convection region of the furnace tube and the outlet temperature of the energy-saving region of the furnace tube," thereby improving the operation of furnace simulation state detection.

[0053] It should be noted that for parts not described in detail in the embodiments of the present invention, please refer to the descriptions in other embodiments.

[0054] See Figure 2 The simulated state detection method for the heating furnace shown includes:

[0055] S201. Obtain the mass flow rate, inlet and outlet pressure difference, and thermodynamic parameters of each furnace tube in the target heating furnace; the target heating furnace includes a furnace chamber and at least one furnace tube; each furnace tube is located inside the furnace chamber; the furnace chamber includes: a radiation zone, a convection zone, and an energy-saving zone; according to the zone of the furnace chamber where each furnace tube is located, the zone of each furnace tube includes: a radiation zone, a convection zone, and an energy-saving zone.

[0056] S202. Based on the information of the material to be heated, obtain the inlet temperature of the radiant zone of the furnace chamber and the inlet temperature of the radiant zone of the furnace tube at multiple consecutive simulation time points in the target heating furnace.

[0057] S203. For each simulation time point, at that simulation time point, based on the inlet temperature of the radiant zone of the furnace, the inlet temperature of the radiant zone of the furnace tube, and the thermodynamic parameters, calculate the outlet temperature of the radiant zone of the furnace and the outlet temperature of the radiant zone of the furnace tube.

[0058] Specifically, the inlet temperatures and related thermodynamic parameters of the furnace radiant region and the furnace tube radiant region are obtained. A radiative heat exchange effect exists between the furnace radiant region and the furnace tube radiant region. The Stuart-Boltzmann law can be used to simulate the radiative heat exchange process when calculating the radiative heat transfer. Using the radiative heat exchange equation and heat balance conditions, combined with the thermodynamic characteristics of the furnace and furnace tubes, the heat transfer between the furnace radiant region and the furnace tube radiant region is calculated. Based on the heat balance equation, the outlet temperatures of the furnace radiant region and the furnace tube radiant region are calculated. Heat from the furnace is transferred to the furnace tubes through radiation and convection. The outlet temperature of the furnace tubes is affected by a combination of radiative heat exchange, heat conduction, and fluid dynamics effects. Using the heat conduction equation, fluid flow effects, and the relationship of convective heat transfer, the change in the fluid temperature inside the furnace tubes is corrected, thus obtaining the outlet temperature of the furnace tube radiant region. By solving the above heat balance equation and heat transfer equation, the outlet temperatures of the furnace radiant region and the furnace tube radiant region are obtained.

[0059] S204. Based on the outlet temperature of the radiant zone of the furnace, calculate the outlet temperature of the convection zone and the outlet temperature of the energy-saving zone of the furnace.

[0060] Specifically, the outlet temperatures of the convective and energy-saving zones of the furnace can be calculated based on the outlet temperature of the radiant zone through the following steps: First, determine the outlet temperature of the radiant zone. Since heat from the radiant zone is transferred to the convective zone through radiation and convection, the inlet temperature of the convective zone can be approximated as the outlet temperature of the radiant zone. Using known parameters such as the convective heat transfer coefficient and heat exchange area, calculate the outlet temperature of the convective zone using the convective heat transfer formula. Next, calculate the inlet temperature of the energy-saving zone based on its outlet temperature; this inlet temperature can be approximated as the outlet temperature of the convective zone. Finally, by comprehensively considering the radiative and convective heat transfer in the energy-saving zone, and combining factors such as its thermodynamic parameters, flow velocity, and surface temperature, calculate its outlet temperature using a heat transfer model.

[0061] S205. Obtain the inlet temperature of the convection zone and the inlet temperature of the energy-saving zone of the furnace tube.

[0062] S206. Based on the inlet temperature of the convection zone of the furnace tube and the inlet temperature of the energy-saving zone of the furnace tube, calculate the outlet temperature of the convection zone of the furnace tube and the outlet temperature of the energy-saving zone of the furnace tube.

[0063] Specifically, for the convection region of the furnace tube, the outlet temperature of the convection region is calculated based on the convection heat transfer equation, combined with the convection heat transfer coefficient, flow velocity, heat transfer area, and fluid thermophysical parameters. The fluid inside the furnace tube absorbs or releases heat through heat exchange with the furnace tube wall. By considering factors such as heat transfer efficiency, heat exchange area, and fluid flow velocity, the outlet temperature of the convection region can be accurately calculated. Similarly, for the energy-saving region of the furnace tube, using the known inlet temperature and thermodynamic parameters of the energy-saving region, the heat transfer within the energy-saving region is calculated using a thermodynamic model and actual heat exchange conditions, ultimately yielding the outlet temperature of the energy-saving region.

[0064] S207. At the simulation time point, the operating status of the target heating furnace corresponding to the simulation time point is determined based on the mass flow rate and inlet / outlet pressure difference of the furnace tube, the outlet temperature of each region in the furnace tube, the outlet temperature of each region in the furnace, and the flow rate mass at the outlet of each region in the furnace.

[0065] As can be seen, in this embodiment, by acquiring the inlet temperature of the radiant region of the furnace, the inlet temperature of the radiant region of the furnace tube, and thermodynamic parameters, the outlet temperature of each region of the furnace and furnace tube can be calculated. This allows for accurate calculation of the outlet temperature of each region of the furnace and furnace tube, thus providing reliable data support for subsequent temperature control and energy efficiency optimization. By calculating the outlet temperature of the radiant region of the furnace and, based on this, calculating the outlet temperature of the convection region and energy-saving region of the furnace, the heat transfer and temperature gradient calculation of each region of the furnace can be ensured to be more accurate. By acquiring the inlet temperature of the convection region and energy-saving region of the furnace tube, and further calculating the outlet temperature of the convection region and energy-saving region of the furnace tube, the heat exchange process of the furnace tube in the heating furnace becomes more refined and accurate. By accurately calculating the outlet temperature and flow rate quality of each region of the furnace and furnace tube, the actual working state of the heating furnace can be better reflected, providing high-precision support for the operational status analysis of the simulation model. Through the above calculation method, accurate thermal state data can be provided for the simulation modeling of the heating furnace.

[0066] In some embodiments, the outlet temperature of the radiant zone of the furnace and the outlet temperature of the radiant zone of the furnace tubes are calculated based on the inlet temperature of the radiant zone of the furnace, the inlet temperature of the radiant zone of the furnace tubes, and thermodynamic parameters, including:

[0067] The inlet temperature, fluid composition, and inlet flow rate of the radiant zone of the furnace, as well as the inlet temperature, fluid composition, and inlet flow rate of the radiant zone of the furnace tubes, are obtained.

[0068] The complete combustion temperature of the radiant zone of the furnace is determined based on the inlet temperature and fluid composition.

[0069] The temperature for complete combustion is determined as the initial temperature value of the outlet temperature of the furnace radiant zone;

[0070] Based on the initial temperature value, and according to the heat transfer relationship of the radiant area of ​​the furnace tube, calculate the heat transfer between the furnace tube and the furnace chamber;

[0071] Based on the heat exchange, determine the outlet temperature of the radiant zone of the furnace and the outlet temperature of the radiant zone of the furnace tube.

[0072] The complete combustion temperature refers to the temperature reached by the material during complete combustion within the radiant zone of the furnace. At the complete combustion temperature, all combustibles are completely oxidized, releasing maximum heat energy. The complete combustion temperature is based on thermodynamic principles, matching the heat released by the combustion reaction with the heat capacity of the material. The complete combustion temperature of the radiant zone in the furnace can be calculated based on the inlet temperature and fluid composition.

[0073] The initial temperature value refers to the initial temperature at the outlet of the furnace's radiant zone. This initial temperature value serves as the starting point for calculating other temperatures and heat transfer in the furnace simulation model. It forms the basis for thermal energy management and furnace temperature control, ensuring accurate simulation of the heating process.

[0074] In a heating furnace, heat transfer relationships describe the process of heat being transferred from one medium (such as furnace gas) to another medium (such as fluid within furnace tubes). The working principle of heat transfer relationships is that heat always flows from a higher-temperature object to a lower-temperature object. Heat transfer relationships are used to calculate the amount of heat exchange between the furnace and furnace tubes, thereby obtaining the outlet temperatures of the furnace and furnace tubes. For example, by calculating the temperature difference between the furnace gas and the fluid within the furnace tubes, and the corresponding thermal conductivity coefficients, the heat transfer efficiency can be determined using heat transfer equations.

[0075] Heat exchange refers to the amount of heat transferred from one object to another per unit time during heat exchange. Heat exchange is used to determine the amount of heat energy exchanged between the furnace and furnace tubes. It directly affects the temperature changes of the furnace and furnace tubes and is a crucial parameter for calculating the thermal efficiency of the heating furnace and for the control system.

[0076] As can be seen, in this embodiment, by acquiring the inlet temperature, fluid composition, and inlet flow rate of the radiant zone of the furnace, as well as the inlet temperature, fluid composition, and inlet flow rate of the radiant zone of the furnace tube, a complete description of the initial boundary conditions and material properties of the furnace and furnace tube can be achieved, thus providing basic data support for the subsequent calculation of the outlet temperature. By determining the complete combustion temperature of the radiant zone of the furnace based on the inlet temperature and fluid composition of the radiant zone, the theoretical upper limit of the combustion zone can be estimated, thus providing a reference benchmark for the calculation of the outlet temperature. By defining the complete combustion temperature as the radiant zone temperature of the furnace... The method of using the initial temperature value of the outlet temperature can connect theoretical combustion results with actual outlet temperature calculations, thereby improving the rationality of the outlet temperature calculation; by calculating the heat exchange between the furnace tube and the furnace chamber based on the initial temperature value and the heat exchange relationship of the furnace tube's radiant region, the heat transfer process between the furnace chamber and the furnace tube can be quantified, thereby improving the accuracy of the outlet temperature calculation; by determining the outlet temperature of the furnace chamber's radiant region and the outlet temperature of the furnace tube's radiant region based on the heat exchange, the thermodynamic state of the furnace chamber and the furnace tube in the radiant region can be accurately characterized, thereby obtaining more realistic simulation results.

[0077] In some embodiments, calculating the outlet temperature of the convection zone and the outlet temperature of the energy-saving zone of the furnace based on the outlet temperature of the radiant zone includes:

[0078] The outlet temperature of the radiant zone of the furnace is defined as the inlet temperature of the convective zone of the furnace.

[0079] Calculate the outlet temperature of the convection zone of the furnace based on the inlet temperature of the convection zone.

[0080] The outlet temperature of the convection zone of the furnace is determined as the inlet temperature of the energy-saving zone of the furnace.

[0081] Calculate the outlet temperature of the energy-saving zone of the furnace based on the inlet temperature of the energy-saving zone.

[0082] Specifically, the outlet temperature of the radiant zone of the furnace is determined as the inlet temperature of the convection zone to ensure the continuity of heat transfer between zones. After obtaining the inlet temperature of the convection zone, the energy exchange process within the convection zone is calculated based on a thermodynamic calculation model of convective heat transfer, thereby obtaining the outlet temperature of the convection zone. Furthermore, the outlet temperature of the convection zone is used as the inlet temperature of the energy-saving zone to achieve step-by-step temperature transfer. Based on the inlet temperature of the energy-saving zone and its heat transfer characteristics, the heat balance within the energy-saving zone is modeled and calculated to obtain the outlet temperature of the energy-saving zone.

[0083] As can be seen, in this embodiment, by calculating the outlet temperatures of the convection and energy-saving regions of the furnace based on the outlet temperature of the radiant region, continuous simulation of the temperature distribution in different regions of the furnace can be achieved, thus obtaining more complete thermal state information. By determining the outlet temperature of the radiant region of the furnace as the inlet temperature of the convection region, a reasonable connection between the temperature transfer relationship between the radiant and convection regions can be achieved, thus ensuring the continuity and accuracy of the convection region outlet temperature calculation. By calculating the outlet temperature of the convection region of the furnace based on the inlet temperature of the convection region, a quantitative description of the thermodynamic state of the convection region can be achieved, thus providing reliable input for the energy-saving region temperature calculation. By determining the outlet temperature of the convection region of the furnace as the inlet temperature of the energy-saving region, continuous modeling of the temperature transfer relationship between the convection and energy-saving regions can be achieved, thus ensuring the rationality of the energy-saving region outlet temperature calculation. By calculating the outlet temperature of the energy-saving region of the furnace based on the inlet temperature of the energy-saving region, accurate simulation of the thermal state of the energy-saving region can be achieved, thus obtaining more complete furnace temperature distribution information.

[0084] In some embodiments, obtaining the mass flow rate of each furnace tube in the target heating furnace includes:

[0085] Obtain the thermodynamic parameters of each region in the furnace; the thermodynamic parameters include: gas phase compressibility factor and fluid constant;

[0086] Calculate the flow rate mass at the outlet of each region of the furnace based on the outlet temperature and thermodynamic parameters of each region.

[0087] The gas-phase compressibility factor is a dimensionless parameter that characterizes the degree of deviation between the real gas and the ideal gas equation of state. It reflects the difference between the actual state of a gas and the ideal gas equation of state under specific temperature and pressure conditions. As a thermodynamic parameter, the gas-phase compressibility factor, in conjunction with the outlet temperature of each region of the furnace, is used to accurately calculate the flow rate mass at the outlet of each region of the furnace.

[0088] Fluid constants can refer to a set of basic parameters that characterize the physical and thermodynamic properties of a specific fluid. Fluid constants can include critical pressure, critical temperature, gas constant, and eccentricity factor, etc.

[0089] As can be seen, in this embodiment, by calculating the flow quality at the outlet of each region of the furnace in a specific way, a quantitative analysis of the flow distribution in each region can be achieved, thereby providing key input for the simulation state detection of the heating furnace; by calculating the flow quality at the outlet of each region based on the outlet temperature and thermodynamic parameters of each region of the furnace, the fluid transport characteristics of each region of the furnace can be accurately quantified, thereby providing data support for subsequent operation state determination and thermal analysis.

[0090] In some embodiments, based on the information of the material to be heated, the inlet temperature of the radiant region of the furnace chamber and the inlet temperature of the radiant region of the furnace tubes at multiple consecutive simulation time points in the target heating furnace are obtained, including:

[0091] Obtain the historical inlet temperature of the target heating furnace at multiple consecutive historical time points; the historical inlet temperature includes the historical inlet temperature of the radiant zone of the furnace chamber and the historical inlet temperature of the radiant zone of the furnace tubes;

[0092] Based on the information of the material to be heated and multiple consecutive historical time points, the inlet temperature of the radiant zone of the furnace chamber and the inlet temperature of the radiant zone of the furnace tube in the target heating furnace at multiple consecutive simulation time points are obtained.

[0093] Historical inlet temperature refers to the inlet temperature data of the furnace radiant zone and furnace tube radiant zone recorded during the historical operation period of the heating furnace. Historical inlet temperature is represented as a set of temperature values ​​stored over time, with each data point corresponding to a historical moment. Furthermore, the information of the material to be heated corresponding to the recorded historical inlet temperature is the same as the information of the material to be heated corresponding to the simulation time point, and the fuel and other conditions corresponding to the historical inlet temperature are also the same as those corresponding to the simulation time point.

[0094] As can be seen, in this embodiment, by obtaining the historical inlet temperatures of the target heating furnace at multiple consecutive historical time points, including the historical inlet temperatures of the furnace chamber and furnace tubes, the historical operating data can be referenced and utilized, thereby improving the accuracy of simulation prediction. By combining the information of the material to be heated and the data from multiple consecutive historical time points, the inlet temperatures of the furnace chamber and furnace tubes at multiple consecutive simulation time points can be obtained, enabling continuous modeling of the heating process, thereby providing reliable input data for subsequent outlet temperature calculation and flow analysis.

[0095] In some embodiments, the heating state of the material to be heated is determined based on the operating state of the target heating furnace corresponding to the simulation time point and the physical property parameters of the material to be heated; the physical property parameters include: density, specific heat capacity, thermal conductivity, melting point and coefficient of thermal expansion.

[0096] Determine the remaining heating time for the material to be heated based on its heating state.

[0097] The operating status refers to the overall working condition of the target heating furnace, which can include comprehensive characteristics such as thermodynamic state, flow state, and heat transfer state. As the core output of the simulation calculation, the operating status is used to detect the real-time performance of the heating furnace and, combined with the physical property parameters of the material to be heated, further determine the heating state of the material.

[0098] The heated state refers to the comprehensive thermal characteristics exhibited by the material being heated during the operation of the target heating furnace, under the influence of heat transferred from the furnace chamber and furnace tubes. The heated state can include: temperature distribution, heat transfer dynamics, and the overall manifestation of changes in the physical properties of the material during the heating process.

[0099] As can be seen, in this embodiment, by using the operating status of the target heating furnace and the physical property parameters of the material to be heated at the simulation time point, the heating state of the material to be heated at a specific time point can be detected; by utilizing the physical property parameters of the material to be heated, including density, specific heat capacity, thermal conductivity, melting point and coefficient of thermal expansion, a more accurate simulation of the material's heating characteristics and thermal response behavior can be achieved, thereby providing a reliable basis for the optimization or control of the subsequent heating process.

[0100] Figure 3 This invention provides a schematic diagram of a heating furnace simulation state detection device. This invention is applicable to situations where the operating state of a target heating furnace is simulated. The device can execute a heating furnace simulation state detection method and can be implemented in hardware and / or software.

[0101] See Figure 3 The heating furnace simulation status detection device shown includes: a data acquisition module 301, a temperature acquisition module 302, a parameter calculation module 303, and an operating status determination module 304, wherein...

[0102] The data acquisition module 301 is used to acquire the mass flow rate, inlet and outlet pressure difference, and thermodynamic parameters of each furnace tube in the target heating furnace. The target heating furnace includes a furnace chamber and at least one furnace tube. Each furnace tube is located inside the furnace chamber. The furnace chamber includes a radiation zone, a convection zone, and an energy-saving zone. According to the zone of the furnace chamber where each furnace tube is located, the zone of each furnace tube includes a radiation zone, a convection zone, and an energy-saving zone.

[0103] The temperature acquisition module 302 is used to acquire the inlet temperature of the radiant zone of the furnace chamber and the inlet temperature of the radiant zone of the furnace tube at multiple consecutive simulation time points based on the information of the material to be heated.

[0104] The parameter calculation module 303 is used to calculate the outlet temperature of each region in the furnace, the outlet temperature of each region in the furnace tube, and the flow mass at the outlet of each region of the furnace at each simulation time point, based on the inlet temperature of the radiant region of the furnace, the inlet temperature of the radiant region of the furnace tube, and the thermodynamic parameters.

[0105] The operating status determination module 304 is used to determine the operating status of the target heating furnace at the simulation time point based on the mass flow rate and inlet / outlet pressure difference of the furnace tube, the outlet temperature of each region in the furnace tube, the outlet temperature of each region in the furnace, and the flow rate mass at the outlet of each region in the furnace.

[0106] The technical solution of this invention, by obtaining the inlet temperatures of the furnace radiant region and furnace tube radiant region at multiple consecutive simulation time points based on the information of the material to be heated, can achieve dynamic tracking of the inlet state of the furnace and furnace tube. By calculating the outlet temperature of each region of the furnace, the outlet temperature of each region of the furnace tube, and the flow mass at the outlet of each region of the furnace at the simulation time points, it can achieve accurate detection of the heat exchange efficiency and flow distribution of different regions of the heating furnace. By determining the operating state of the target heating furnace based on the mass flow rate of the furnace tube, the inlet and outlet pressure difference, and the outlet temperature and flow mass of each region at the simulation time points, it can achieve real-time diagnosis and monitoring of the heating furnace's operating state. This solves the technical problems of existing methods for analyzing the operating state of heating furnaces, which rely on real heating furnaces, are costly, and cannot be adjusted in real time. Thus, it can reduce the cost of obtaining the operating state of the heating furnace and improve the efficiency of simulating the operating state of the heating furnace.

[0107] In some embodiments, the parameter calculation module 303 is specifically used to calculate the outlet temperature of each region in the furnace, the outlet temperature of each region in the furnace tube, and the flow quality at the outlet of each region in the furnace based on the inlet temperature of the radiant region of the furnace, the inlet temperature of the radiant region of the furnace tube, and thermodynamic parameters.

[0108] For each simulation time point, the outlet temperature of the radiant zone of the furnace and the outlet temperature of the radiant zone of the furnace tube are calculated based on the inlet temperature of the radiant zone of the furnace, the inlet temperature of the radiant zone of the furnace tube, and the thermodynamic parameters.

[0109] Based on the outlet temperature of the radiant zone of the furnace, calculate the outlet temperature of the convective zone and the outlet temperature of the energy-saving zone of the furnace.

[0110] Obtain the inlet temperature of the convection zone and the inlet temperature of the energy-saving zone of the furnace tube;

[0111] Calculate the outlet temperature of the convection zone and the outlet temperature of the energy-saving zone of the furnace tube based on the inlet temperature of the convection zone and the inlet temperature of the energy-saving zone of the furnace tube.

[0112] In some embodiments, the parameter calculation module 303 is specifically used to calculate the outlet temperature of the radiant zone of the furnace and the outlet temperature of the radiant zone of the furnace tube based on the inlet temperature of the radiant zone of the furnace, the inlet temperature of the radiant zone of the furnace tube, and thermodynamic parameters, in order to:

[0113] The inlet temperature, fluid composition, and inlet flow rate of the radiant zone of the furnace, as well as the inlet temperature, fluid composition, and inlet flow rate of the radiant zone of the furnace tubes, are obtained.

[0114] The complete combustion temperature of the radiant zone of the furnace is determined based on the inlet temperature and fluid composition.

[0115] The temperature for complete combustion is determined as the initial temperature value of the outlet temperature of the furnace radiant zone;

[0116] Based on the initial temperature value, and according to the heat transfer relationship of the radiant area of ​​the furnace tube, calculate the heat transfer between the furnace tube and the furnace chamber;

[0117] Based on the heat exchange, determine the outlet temperature of the radiant zone of the furnace and the outlet temperature of the radiant zone of the furnace tube.

[0118] In some embodiments, the parameter calculation module 303 is specifically used to calculate the outlet temperature of the convection zone and the outlet temperature of the energy-saving zone of the furnace based on the outlet temperature of the radiant zone of the furnace:

[0119] The outlet temperature of the radiant zone of the furnace is defined as the inlet temperature of the convective zone of the furnace.

[0120] Calculate the outlet temperature of the convection zone of the furnace based on the inlet temperature of the convection zone.

[0121] The outlet temperature of the convection zone of the furnace is determined as the inlet temperature of the energy-saving zone of the furnace.

[0122] Calculate the outlet temperature of the energy-saving zone of the furnace based on the inlet temperature of the energy-saving zone.

[0123] In some embodiments, the parameter calculation module 303 is specifically used for: obtaining the mass flow rate of each furnace tube in the target heating furnace;

[0124] Obtain the thermodynamic parameters of each region in the furnace; the thermodynamic parameters include: gas phase compressibility factor and fluid constant;

[0125] Calculate the flow rate mass at the outlet of each region of the furnace based on the outlet temperature and thermodynamic parameters of each region.

[0126] In some embodiments, in acquiring the inlet temperature of the radiant zone of the furnace chamber and the inlet temperature of the radiant zone of the furnace tube at multiple consecutive simulation time points in the target heating furnace based on the information of the material to be heated, the temperature acquisition module 302 is specifically used for:

[0127] Obtain the historical inlet temperature of the target heating furnace at multiple consecutive historical time points; the historical inlet temperature includes the historical inlet temperature of the radiant zone of the furnace chamber and the historical inlet temperature of the radiant zone of the furnace tubes;

[0128] Based on the information of the material to be heated and multiple consecutive historical time points, the inlet temperature of the radiant zone of the furnace chamber and the inlet temperature of the radiant zone of the furnace tube in the target heating furnace at multiple consecutive simulation time points are obtained.

[0129] In some embodiments, the heating furnace simulation state detection device is further specifically used for:

[0130] The heating state determination module is used to determine the heating state of the material to be heated based on the operating state of the target heating furnace and the physical property parameters of the material to be heated at the simulation time point. The physical property parameters include: density, specific heat capacity, thermal conductivity, melting point and coefficient of thermal expansion.

[0131] The heating time determination module is used to determine the remaining heating time of the material to be heated based on its heating status.

[0132] The furnace simulation state detection device provided in this embodiment of the invention can execute the furnace simulation state detection method provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of executing the furnace simulation state detection method.

[0133] Figure 4 This is a schematic diagram of the structure of a heating furnace simulation state detection device provided in an embodiment of the present invention.

[0134] like Figure 4As shown, the heating furnace simulation status monitoring device 400 includes at least one processor 401 and a memory, such as a read-only memory (ROM) 402 and a random access memory (RAM) 403, communicatively connected to the at least one processor 401. The memory stores computer programs executable by the at least one processor. The processor 401 can perform various appropriate actions and processes based on the computer program stored in the ROM 402 or loaded into the RAM 403 from the storage unit 408. The RAM 403 can also store various programs and data required for the operation of the heating furnace simulation status monitoring device 400. The processor 401, ROM 402, and RAM 403 are interconnected via a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0135] Multiple components in the heating furnace simulation condition monitoring device 400 are connected to the I / O interface 405, including: an input unit 406, such as a keyboard, mouse, etc.; an output unit 407, such as various types of displays, speakers, etc.; a storage unit 408, such as a disk, optical disk, etc.; and a communication unit 409, such as a network card, modem, wireless transceiver, etc. The communication unit 409 allows the heating furnace simulation condition monitoring device 400 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0136] Processor 401 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 401 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 401 performs the various methods and processes described above, such as the furnace simulation state detection method.

[0137] In some embodiments, the furnace simulation state detection method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 408. In some embodiments, part or all of the computer program may be loaded and / or installed on the furnace simulation state detection device 400 via ROM 402 and / or communication unit 409. When the computer program is loaded into RAM 403 and executed by processor 401, one or more steps of the furnace simulation state detection method described above may be performed. Alternatively, in other embodiments, processor 401 may be configured to execute the furnace simulation state detection method by any other suitable means (e.g., by means of firmware).

[0138] Various implementations of the systems and techniques described above 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), systems-on-a-chip (SoCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations may include: implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0139] Computer programs used to implement 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 executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0140] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0141] To provide user interaction, the systems and techniques described herein can be implemented on the operating monitoring device, which includes: 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 provides input to the heating furnace simulation status monitoring device. Other types of devices can also be used to provide user interaction; for example, 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).

[0142] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or middleware components (e.g., application servers), or frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0143] A computing system can include clients and servers. Clients and servers are generally geographically separated and typically interact via communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system. It addresses the shortcomings of traditional physical hosts and VPS (Virtual Private Server) services, such as high management difficulty and weak business scalability.

[0144] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0145] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for detecting the simulated state of a heating furnace, characterized in that, The method includes: The mass flow rate, inlet and outlet pressure difference, and thermodynamic parameters of each furnace tube in the target heating furnace are obtained. The target heating furnace includes a furnace chamber and at least one furnace tube. Each furnace tube is located inside the furnace chamber. The furnace chamber includes a radiation zone, a convection zone, and an energy-saving zone. According to the zone of the furnace chamber in which each furnace tube is located, the zone of each furnace tube includes a radiation zone, a convection zone, and an energy-saving zone. Based on the information of the material to be heated, the inlet temperature of the radiant region of the furnace chamber and the inlet temperature of the radiant region of the furnace tube in the target heating furnace are obtained at multiple consecutive simulation time points; For each of the simulation time points, at each simulation time point, based on the inlet temperature of the radiant region of the furnace, the inlet temperature of the radiant region of the furnace tube, and the thermodynamic parameters, the outlet temperature of each region in the furnace, the outlet temperature of each region in the furnace tube, and the flow mass at the outlet of each region in the furnace are calculated. At the simulation time point, the operating state of the target heating furnace corresponding to the simulation time point is determined based on the mass flow rate and inlet / outlet pressure difference of the furnace tube, the outlet temperature of each region in the furnace tube, the outlet temperature of each region in the furnace chamber, and the flow rate mass at the outlet of each region in the furnace chamber.

2. The method according to claim 1, characterized in that, The calculation of the outlet temperature of each region in the furnace, the outlet temperature of each region in the furnace tube, and the flow rate mass at the outlet of each region of the furnace, based on the inlet temperature of the radiant region of the furnace chamber, the inlet temperature of the radiant region of the furnace tube, and thermodynamic parameters, includes: For each of the simulation time points, at each simulation time point, based on the inlet temperature of the radiant zone of the furnace, the inlet temperature of the radiant zone of the furnace tube, and the thermodynamic parameters, the outlet temperature of the radiant zone of the furnace and the outlet temperature of the radiant zone of the furnace tube are calculated. Based on the outlet temperature of the radiant zone of the furnace, calculate the outlet temperature of the convection zone of the furnace and the outlet temperature of the energy-saving zone of the furnace. Obtain the inlet temperature of the convection zone of the furnace tube and the inlet temperature of the energy-saving zone of the furnace tube; The outlet temperature of the convection zone and the outlet temperature of the energy-saving zone of the furnace tube are calculated based on the inlet temperature of the convection zone and the inlet temperature of the energy-saving zone of the furnace tube.

3. The method according to claim 2, characterized in that, The step of calculating the outlet temperature of the radiant zone of the furnace and the outlet temperature of the radiant zone of the furnace tube based on the inlet temperature of the radiant zone of the furnace chamber, the inlet temperature of the radiant zone of the furnace tube, and thermodynamic parameters includes: The inlet temperature, fluid composition, and inlet flow rate of the radiant zone of the furnace are obtained, as well as the inlet temperature, fluid composition, and inlet flow rate of the radiant zone of the furnace tube; The complete combustion temperature of the radiant zone of the furnace is determined based on the inlet temperature and fluid composition of the radiant zone. The complete combustion temperature is determined as the initial temperature value of the outlet temperature of the furnace radiation zone; Based on the initial temperature value and the heat transfer relationship of the radiation area of ​​the furnace tube, the heat transfer between the furnace tube and the furnace chamber is calculated. Based on the heat exchange, the outlet temperature of the radiant zone of the furnace and the outlet temperature of the radiant zone of the furnace tube are determined.

4. The method according to claim 2, characterized in that, The step of calculating the outlet temperature of the convection zone and the outlet temperature of the energy-saving zone of the furnace based on the outlet temperature of the radiant zone of the furnace includes: The outlet temperature of the radiant zone of the furnace is determined as the inlet temperature of the convective zone of the furnace. Calculate the outlet temperature of the convection zone of the furnace based on the inlet temperature of the convection zone of the furnace. The outlet temperature of the convection zone of the furnace is determined as the inlet temperature of the energy-saving zone of the furnace. The outlet temperature of the energy-saving zone of the furnace is calculated based on the inlet temperature of the energy-saving zone.

5. The method according to claim 1, characterized in that, The step of obtaining the inlet temperature of the radiant region of the furnace chamber and the inlet temperature of the radiant region of the furnace tube at multiple consecutive simulation time points based on the information of the material to be heated includes: The historical inlet temperatures of the target heating furnace at multiple consecutive historical time points are obtained; the historical inlet temperatures include the historical inlet temperatures of the radiant zone of the furnace chamber and the historical inlet temperatures of the radiant zone of the furnace tubes. Based on the information of the material to be heated and multiple consecutive historical time points, the inlet temperature of the radiant zone of the furnace chamber and the inlet temperature of the radiant zone of the furnace tube in the target heating furnace at multiple consecutive simulation time points are obtained.

6. The method according to claim 1, characterized in that, Also includes: Based on the operating status of the target heating furnace and the physical property parameters of the material to be heated at the simulation time point, the heating state of the material to be heated is determined. The physical properties parameters include: density, specific heat capacity, thermal conductivity, melting point, and coefficient of thermal expansion; Based on the heating state, the remaining heating time of the material to be heated is determined.

7. A device for simulating the state of a heating furnace, characterized in that, include: The data acquisition module is used to acquire the mass flow rate, inlet and outlet pressure difference, and thermodynamic parameters of each furnace tube in the target heating furnace; The target heating furnace includes a furnace chamber and at least one furnace tube; Each of the furnace tubes is located inside the furnace chamber; The furnace chamber includes a radiation zone, a convection zone, and an energy-saving zone; according to the zone of the furnace chamber in which each furnace tube is located, the zone of each furnace tube includes a radiation zone, a convection zone, and an energy-saving zone. The temperature acquisition module is used to acquire the inlet temperature of the radiant zone of the furnace chamber and the inlet temperature of the radiant zone of the furnace tube at multiple consecutive simulation time points based on the information of the material to be heated. The parameter calculation module is used to calculate, at each of the simulation time points, the outlet temperature of each region in the furnace, the outlet temperature of each region in the furnace tube, and the flow mass at the outlet of each region in the furnace, based on the inlet temperature of the radiant region of the furnace, the inlet temperature of the radiant region of the furnace tube, and the thermodynamic parameters. The operating status determination module is used to determine the operating status of the target heating furnace at the simulation time point based on the mass flow rate and inlet / outlet pressure difference of the furnace tube, the outlet temperature of each region in the furnace tube, the outlet temperature of each region in the furnace, and the flow rate mass at the outlet of each region in the furnace.

8. A heating furnace simulation state detection device, characterized in that, The furnace simulation status detection equipment includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the heating furnace simulation state detection method according to any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute the furnace simulation state detection method according to any one of claims 1-6.

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