WO2022099716A1 - Method for simulating thermal insulation property of external thermal insulation material of high-temperature carbonization furnace - Google Patents

Method for simulating thermal insulation property of external thermal insulation material of high-temperature carbonization furnace Download PDF

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WO2022099716A1
WO2022099716A1 PCT/CN2020/129191 CN2020129191W WO2022099716A1 WO 2022099716 A1 WO2022099716 A1 WO 2022099716A1 CN 2020129191 W CN2020129191 W CN 2020129191W WO 2022099716 A1 WO2022099716 A1 WO 2022099716A1
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thermal insulation
carbonization furnace
temperature carbonization
temperature
option
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PCT/CN2020/129191
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Chinese (zh)
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张毅鹏
孙中心
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天华化工机械及自动化研究设计院有限公司
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Priority to PCT/CN2020/129191 priority Critical patent/WO2022099716A1/en
Publication of WO2022099716A1 publication Critical patent/WO2022099716A1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation
    • G06F30/28—Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2113/00—Details relating to the application field
    • G06F2113/08—Fluids
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
    • G06F2119/08—Thermal analysis or thermal optimisation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
    • G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces

Definitions

  • the invention relates to the technical field of high-temperature carbonization furnace design simulation analysis method used in carbon fiber production.
  • Carbon fiber production is a high-energy-consuming industry, among which the high-temperature carbonization furnace is one of the largest energy consumers in carbon fiber production equipment. At the same time, the high-temperature carbonization furnace is also the key equipment for carbon fiber production. Converted to carbon fiber with a carbon content greater than 90%.
  • High temperature carbonization furnace is the integration of high temperature technology and high temperature equipment, and the operating temperature is generally 1000°C-1600°C.
  • the heat insulation structure is installed on the outer layer of the heating body of the high temperature carbonization furnace to maintain the stability of the working temperature in the furnace and reduce unnecessary heat loss. The heat insulation structure is crucial to the high temperature performance and production efficiency of the high temperature carbonization furnace important role.
  • thermal insulation structure of the high temperature carbonization furnace is also an important factor that leads to high manufacturing costs. Therefore, on the premise of meeting the performance requirements, reducing the amount of thermal insulation structure can effectively reduce high temperature carbonization. The manufacturing cost of the furnace is reduced, and the project investment is reduced. It can be seen that from the perspective of performance and economy, the performance design of thermal insulation structure is one of the important links in the overall design of high temperature carbonization furnace.
  • the existing conventional thermal insulation design methods mostly use engineering experience and calculation formulas to calculate the thermal insulation efficiency. Usually, the calculation results have low accuracy and unstable thermal insulation structure performance. Designers will increase the amount of thermal insulation materials to improve the thermal insulation effect. , which leads to the increase of manufacturing cost, and this method relies heavily on the designer's engineering experience, and the design workload is large. Therefore, it is necessary to choose a reasonable design method, so that the external insulation layer of the high-temperature carbonization furnace can reach a temperature that meets the specifications, reduce the use of insulation materials, and improve the insulation efficiency of the insulation layer.
  • the purpose of the present invention is to overcome the deficiencies of the prior art in the design method of the external thermal insulation structure of the high temperature carbonization furnace, and to propose a simulation method for the thermal insulation performance of the external thermal insulation material of the high temperature carbonization furnace.
  • a method for simulating the thermal insulation performance of an external thermal insulation material of a high-temperature carbonization furnace characterized in that the method for simulating comprises the following steps:
  • the temperature distribution characteristics of the high-temperature carbonization furnace insulation layer are determined from the cloud map. Materials and geometric dimensions of different insulation layers.
  • the relevant parameters set in step (1) include: the geometrical shape and geometrical size of the insulation layer, the geometrical shape and geometrical size of the internal furnace cavity, and the geometrical shape and geometrical size of the graphite heating tube.
  • step (4) the process of setting FLUENT in ANSYS software is as follows:
  • v , ⁇ , ⁇ are the flow velocity, density and viscosity coefficient of the fluid, respectively, and d is the characteristic length.
  • step (4.8) the three-dimensional mathematical model of the heat transfer calculation of the high-temperature carbonization furnace based on the calculation basis after selecting the Check case, contains the three-dimensional continuity equation, momentum equation, and energy equation as formulas (1), (2), (3) shown:
  • ⁇ is the dynamic viscosity
  • F b is the volume force on the micro-element
  • h is the specific enthalpy of the gas in the furnace
  • ⁇ is the thermal conductivity of the gas in the furnace
  • gradT is the normal temperature gradient of the gas heat transfer surface
  • Sh is the heat source inside the gas
  • ⁇ is the dissipation function of the gas
  • ⁇ represents the density of the material
  • C T represents the specific heat of the material
  • ⁇ x , ⁇ y , ⁇ z represent the thermal conductivity along the x , y , z directions, respectively
  • Q( x , y , z , t ) represents the intensity of the heat source inside the object .
  • step (4) the monitoring surface of the three-dimensional simulation model of the external insulation layer of the high-temperature carbonization furnace is selected as the Y-direction plane passing through the center point.
  • the simulation result in step (4) includes: the temperature change cloud map of the monitoring surface.
  • the present invention reasonably determines the selection and geometric size of the heat insulating material by simulating the temperature distribution characteristics of the heat insulating layer material in the design process. It can be seen that the present invention can intuitively determine the thermal insulation effect of the external thermal insulation layer of the high-temperature carbonization furnace, and can better realize the selection of thermal insulation materials for thermal insulation layers and determine the geometric parameters of thermal insulation layers, thereby improving thermal insulation efficiency and reducing design costs. provide a theoretical basis.
  • FIG. 1 is a schematic diagram of the thermal insulation layer model established in the simulation method of the present invention.
  • FIG. 2 is a schematic diagram of the calculation grid of the thermal insulation layer model established in the simulation method of the present invention.
  • 3-5 are cloud diagrams of temperature distribution characteristics of the thermal insulation layer under different working temperatures of the monitoring surface in the present invention.
  • the invention discloses a method for simulating the thermal insulation performance of an external thermal insulation material of a high-temperature carbonization furnace, characterized in that the method for simulating includes the following steps:
  • thermo insulation layer geometry Shape and geometry, internal furnace chamber geometry and geometry, and graphite heating tube geometry and geometry As shown in Figure 1, the high temperature carbonization furnace insulation layer and furnace cavity are air 1, insulation layer 1 2, insulation layer 2 3, nitrogen layer 4, heating tube layer 5, nitrogen layer 6, graphite from outside to inside. layer 7 and nitrogen layer 8.
  • the mass is greater than 0.9, and in order to facilitate the later setting of calculation conditions, the names of the inlet and outlet and wall boundaries of all 3D simulation models are defined, mainly including the insulation layer, the wall surface of the heating tube, and the wall surface of the furnace cavity;
  • step (2) Import the 3D simulation model divided in step (2) into the FLUENT module of the ANSYS software, and set the FLUENT module;
  • v , ⁇ , ⁇ are the flow velocity, density and viscosity coefficient of the fluid, respectively, and d is the characteristic length.
  • ⁇ is the dynamic viscosity
  • F b is the volume force on the micro-element
  • h is the specific enthalpy of the gas in the furnace
  • ⁇ is the thermal conductivity of the gas in the furnace
  • gradT is the normal temperature gradient of the gas heat transfer surface
  • Sh is the heat source inside the gas
  • ⁇ is the dissipation function of the gas
  • ⁇ represents the density of the material
  • C T represents the specific heat of the material
  • ⁇ x , ⁇ y , ⁇ z represent the thermal conductivity along the x , y , z directions, respectively
  • Q( x , y , z , t ) represents the intensity of the heat source inside the object .
  • the monitoring surface of the three-dimensional simulation model of the external insulation layer of the high-temperature carbonization furnace is selected as the Y-direction plane passing through the center point.
  • the simulation result includes: the temperature change cloud map of the monitoring surface.
  • the temperature distribution characteristics of the high-temperature carbonization furnace insulation layer are determined from the cloud map.
  • the present invention can intuitively determine the thermal insulation performance of the thermal insulation material of the high temperature carbonization furnace, can better realize the thermal insulation performance determination of the thermal insulation material of the high temperature carbonization furnace, and reasonably select the physical parameters of the thermal insulation material and the thermal insulation properties of the thermal insulation material.
  • the geometric parameters can be used to provide a theoretical basis for improving the thermal insulation performance and reducing the design cost of the high temperature carbonization furnace. .
  • the thermal insulation performance of the external thermal insulation material of the high-temperature carbonization furnace under different heating temperature zones can be obtained by modifying the temperature in the boundary of the heating tube wall.
  • 3- Figure 5 shows that the temperature distribution in the insulation layer is uneven, the temperature near the heating pipe is the highest, and the insulation effect of the external insulation layer is obvious.
  • the insulation effect of the insulation layer with low thermal conductivity is obvious, and the temperature gradually increases with the thickness of the insulation layer. reduce.
  • several simulations should be performed, and the analysis results should be compared to obtain the best solution for the thermal insulation effect and geometric size of the external thermal insulation layer of the high temperature carbonization furnace.

Abstract

A method for simulating the thermal insulation property of an external thermal insulation material of a high-temperature carbonization furnace, relating to the technical field of high-temperature carbonization furnace design, simulation and analysis methods for use in carbon fiber production. The method overcomes the defects of a method for designing an external thermal insulation structure of a high-temperature carbonization furnace in the prior art, and comprises the following steps: (1) establishing a high three-dimensional simulation model, and setting related parameters; (2) performing mesh generation; (3) importing the three-dimensional simulation model into a FLUENT module of ANSYS software, and configuring the FLUENT module; (4) providing a temperature measurement surface in the FLUENT module of the ANSYS software, and performing simulation calculation to obtain a result which is used as an index for determining the thermal insulation property of the thermal insulation layer material of the high-temperature carbonization furnace; and (5) setting different parameters, repeating steps (1)-(4), and determining the materials and geometric dimensions of different thermal insulation layers according to a temperature distribution characteristic cloud chart of the thermal insulation layers of the high-temperature carbonization furnace. By means of the simulation method, the thermal insulation effect of the external thermal insulation layer of the high-temperature carbonization furnace can be visually determined, and a theoretical basis is provided for increasing the thermal insulation efficiency and reducing the design cost.

Description

一种高温碳化炉外部保温材料隔热性能的模拟方法A simulation method of thermal insulation performance of external thermal insulation material of high temperature carbonization furnace 技术领域technical field
本发明涉及到碳纤维生产中所用的高温碳化炉设计模拟分析方法技术领域。The invention relates to the technical field of high-temperature carbonization furnace design simulation analysis method used in carbon fiber production.
背景技术Background technique
碳纤维生产属于高耗能产业，其中的高温碳化炉是碳纤维生产设备中的耗能大户之一，同时，高温碳化炉也是碳纤维生产的关键设备，主要用于对预氧丝进行高温碳化，使其转化为碳元素含量大于 90%的碳纤维。高温碳化炉是高温技术和高温设备的集成，使用温度一般在 1000℃-1600℃。隔热结构安装在高温碳化炉的发热体外层，用于保持炉内工作温度的稳定，同时减少不必要的热量损失，隔热结构对高温炉碳化炉的高温性能和生产效率都起着至关重要的作用。高温碳化炉隔热结构的主要材料因其较高的价格也是导致制造成本高昂的一个重要因素，因此，在满足使用性能要求的前提下，减少隔热结构的用量，就可以有效地降低高温碳化炉的制造成本，减少项目投资。由此可见，无论是从性能还是经济性的角度出发，隔热结构性能设计是高温碳化炉整体设计的重要环节之一。Carbon fiber production is a high-energy-consuming industry, among which the high-temperature carbonization furnace is one of the largest energy consumers in carbon fiber production equipment. At the same time, the high-temperature carbonization furnace is also the key equipment for carbon fiber production. Converted to carbon fiber with a carbon content greater than 90%. High temperature carbonization furnace is the integration of high temperature technology and high temperature equipment, and the operating temperature is generally 1000℃-1600℃. The heat insulation structure is installed on the outer layer of the heating body of the high temperature carbonization furnace to maintain the stability of the working temperature in the furnace and reduce unnecessary heat loss. The heat insulation structure is crucial to the high temperature performance and production efficiency of the high temperature carbonization furnace important role. The high price of the main material of the thermal insulation structure of the high temperature carbonization furnace is also an important factor that leads to high manufacturing costs. Therefore, on the premise of meeting the performance requirements, reducing the amount of thermal insulation structure can effectively reduce high temperature carbonization. The manufacturing cost of the furnace is reduced, and the project investment is reduced. It can be seen that from the perspective of performance and economy, the performance design of thermal insulation structure is one of the important links in the overall design of high temperature carbonization furnace.
现有常规的隔热设计方法多采用工程经验与计算公式结合进行隔热效率的计算，通常的计算结果精度低，保温结构性能不稳定，设计人员会通过增加保温材料的用量以提高隔热效果，这无形中导致了制造成本的增加，并且此方法严重依赖设计者的工程经验，设计工作量大。因此需要选择合理的设计方法，使高温碳化炉外部保温层能达到符合规范的温度，降低保温材料的使用量，提高保温层的隔热效率。The existing conventional thermal insulation design methods mostly use engineering experience and calculation formulas to calculate the thermal insulation efficiency. Usually, the calculation results have low accuracy and unstable thermal insulation structure performance. Designers will increase the amount of thermal insulation materials to improve the thermal insulation effect. , which leads to the increase of manufacturing cost, and this method relies heavily on the designer's engineering experience, and the design workload is large. Therefore, it is necessary to choose a reasonable design method, so that the external insulation layer of the high-temperature carbonization furnace can reach a temperature that meets the specifications, reduce the use of insulation materials, and improve the insulation efficiency of the insulation layer.
技术问题technical problem
综上所述，本发明的目的在于克服现有技术在高温碳化炉外部保温结构设计方法的不足，而提出一种高温碳化炉外部保温材料隔热性能的模拟方法。To sum up, the purpose of the present invention is to overcome the deficiencies of the prior art in the design method of the external thermal insulation structure of the high temperature carbonization furnace, and to propose a simulation method for the thermal insulation performance of the external thermal insulation material of the high temperature carbonization furnace.
技术解决方案technical solutions
为解决本发明所提出技术不足，而采用的技术方案为：In order to solve the technical deficiencies proposed by the present invention, the technical scheme adopted is:
一种高温碳化炉外部保温材料隔热性能的模拟方法，其特征在于所述模拟方法包括有如下步骤：A method for simulating the thermal insulation performance of an external thermal insulation material of a high-temperature carbonization furnace, characterized in that the method for simulating comprises the following steps:
（1）、采用三维CAD软件SOLIDWORKS软件建立高温碳化炉保温层和炉内腔体的三维仿真模型，并设定相关参数；(1) Use the 3D CAD software SOLIDWORKS software to establish the 3D simulation model of the thermal insulation layer and the furnace cavity of the high temperature carbonization furnace, and set the relevant parameters;
（2）、将三维仿真模型进行网格划分；将步骤（1）建立的碳化炉保温层和炉内腔体的三维仿真模型传递到ICEM软件的Blocking模块中，在Blocking模块中采用O-Block方式对三维仿真模型进行网格划分, 网格划分策略采用BiGeometric方式，控制比率因子为默认值1.2，根据软件中网格质量的判断标准，同时保证整体结构的网格质量大于0.9，同时为了便于后期设置计算条件，定义所有三维仿真模型的进出口与壁面边界名称，包括保温层，加热管壁面，炉腔壁面；(2) Mesh the three-dimensional simulation model; transfer the three-dimensional simulation model of the carbonization furnace insulation layer and furnace cavity established in step (1) to the Blocking module of the ICEM software, and use O-Block in the Blocking module. The 3D simulation model is meshed by using the BiGeometric method, and the control ratio factor is the default value of 1.2. According to the grid quality judgment standard in the software, the grid quality of the overall structure is guaranteed to be greater than 0.9. At the same time, in order to facilitate the Set the calculation conditions in the later stage, and define the names of the inlet, outlet and wall boundaries of all 3D simulation models, including the insulation layer, the heating tube wall, and the furnace cavity wall;
（3）、将网格划分好的三维仿真模型导入ANSYS软件的FLUENT模块，并对FLUENT模块进行设置；(3) Import the meshed 3D simulation model into the FLUENT module of ANSYS software, and set the FLUENT module;
（4）、在ANSYS软件中的FLUENT模块里设置温度检测面，并进行仿真运算得到结果，以此作为判定高温碳化炉保温层材料隔热性能的指标；(4) Set the temperature detection surface in the FLUENT module in the ANSYS software, and perform simulation operations to obtain the results, which are used as indicators to determine the thermal insulation performance of the thermal insulation layer material of the high temperature carbonization furnace;
（5）、在相同设置条件下，通过将三维仿真模型设置不同参数并重复步骤（1）-（4），以进行多次模拟计算，由高温碳化炉保温层温度分布特性云图，以此确定不同保温层的材料与几何尺寸。(5) Under the same setting conditions, by setting different parameters of the three-dimensional simulation model and repeating steps (1)-(4) to perform multiple simulation calculations, the temperature distribution characteristics of the high-temperature carbonization furnace insulation layer are determined from the cloud map. Materials and geometric dimensions of different insulation layers.
作为对本发明技术方案作进一步限定的技术方案包括有：As the technical scheme further limiting the technical scheme of the present invention includes:
步骤（1）中设定的相关参数包括：保温层几何形状和几何尺寸，内部炉腔几何形状和几何尺寸，以及石墨加热管几何形状和几何尺寸。The relevant parameters set in step (1) include: the geometrical shape and geometrical size of the insulation layer, the geometrical shape and geometrical size of the internal furnace cavity, and the geometrical shape and geometrical size of the graphite heating tube.
步骤（4）中，对ANSYS软件中的FLUENT进行设置的过程如下：In step (4), the process of setting FLUENT in ANSYS software is as follows:
（4.1）、在User Defined选项导入根据设备运行工艺参数编制的自定义温度参数；(4.1), in the User Defined option, import the custom temperature parameters prepared according to the operating process parameters of the equipment;
（4.2）、在General选项中，将y方向Gravitational Acceleration 根据要求设定为预设值，time选项设置为Transient瞬态传热；(4.2), in the General option, set the y direction to Gravitational Acceleration is set to the preset value according to the requirements, and the time option is set to Transient transient heat transfer;
（4.3）、将Models选项中的Energy勾选Energy Equation，Viscous Models选项中选取laminar 模型，为了判断炉腔内气流运动状态，引入雷诺数进行描述，雷诺数的计算公式为：(4.3), check Energy Equation in the Energy in the Models option, and select laminar in the Viscous Models option Model, in order to judge the airflow movement state in the furnace cavity, the Reynolds number is introduced to describe, the calculation formula of Reynolds number is:
Figure dest_path_image001
 
Figure dest_path_image001
其中，其中 v 、ρ、μ分别为流体的流速、密度与黏性系数， d为特征长度。通过雷诺数的计算，进而选择湍流模型为laminar模型； Among them, where v , ρ, μ are the flow velocity, density and viscosity coefficient of the fluid, respectively, and d is the characteristic length. Through the calculation of the Reynolds number, the turbulence model is selected as the laminar model;
（4.4）、将Models选项中的Radiation Model勾选Surface to Surface,并在View Factor and Clustering选项点击Compute/Write/Read进行保存；(4.4), check the Radiation Model in the Models option Surface to Surface, and click Compute/Write/Read in the View Factor and Clustering option to save;
（4.5）、在Materials Fluid选项部分选择氧气和氮气，在Materials Solid选项部分新建保温材料，材料的属性主要有密度、比热容、导热系数，然后分别选择每种新建的保温材料；(4.5) Select oxygen and nitrogen in the Materials Fluid option section, and create a new insulation material in the Materials Solid option section. The properties of the material mainly include density, specific heat capacity, and thermal conductivity, and then select each new insulation material separately;
（4.6）、在Cell Zone Conditions选项中将Fluid1部分设为氮气，Fluid2部分设为氮气，Fluid3部分设为空气；将Solid1部分设为第一种保温材料，Solid2部分设为第二种保温材料，Solid3部分设为第三种保温材料；(4.6), in Cell Zone In the Conditions option, set the Fluid1 part to nitrogen, the Fluid2 part to nitrogen, and the Fluid3 part to air; set the Solid1 part to the first thermal insulation material, the Solid2 part to the second thermal insulation material, and the Solid3 part to the third thermal insulation material Insulation Materials;
（4.7）、在Boundary Conditions选项中设置保温材料之间的传热方式为Coupled，加热管表面设置为UDF定义每小时内管壁温度值，炉腔内气体与保温材料、加热管之间传热方式为Coupled；(4.7), in Boundary In the Conditions option, set the heat transfer mode between the insulation materials to Coupled, set the heating tube surface to UDF to define the inner tube wall temperature value per hour, and set the heat transfer mode between the gas in the furnace cavity, the thermal insulation material, and the heating tube to Coupled;
（4.8）、选择Check case后进行计算。(4.8) Calculate after selecting Check case.
步骤（4.8）中选择Check case后进行计算基础的高温碳化炉传热计算的三维数学模型，包含的三维连续性方程、动量方程、能量方程分别如公式(1)、(2)、(3)所示：In step (4.8), the three-dimensional mathematical model of the heat transfer calculation of the high-temperature carbonization furnace based on the calculation basis after selecting the Check case, contains the three-dimensional continuity equation, momentum equation, and energy equation as formulas (1), (2), (3) shown:
           
Figure 288464dest_path_image002
      (1)
Figure 288464dest_path_image002
 (1)
式中， ρ-流体密度； t-时间；V-速度矢量，其中 u 、 v 、 w为V在 x、 y及 z三个方向上的分量。 In the formula, ρ - fluid density; t - time; V - velocity vector, where u , v , w are the components of V in the three directions of x , y and z .
动量方程的Navier-Stokes方程：Navier-Stokes equation for momentum equation:
Figure dest_path_image003
        (2)
Figure dest_path_image003
 (2)
其中， μ是动力黏度， F b 是微元上的体积力； Among them, μ is the dynamic viscosity, F b is the volume force on the micro-element;
能量守恒方程：Energy conservation equation:
   
Figure 2342dest_path_image004
     (3)
Figure 2342dest_path_image004
 (3)
其中， h为炉内气体的比焓； λ为炉内气体的导热系数； gradT为气体传热面法向温度梯度； S h 为气体内部的热源； Φ为气体的耗散函数； where h is the specific enthalpy of the gas in the furnace; λ is the thermal conductivity of the gas in the furnace; gradT is the normal temperature gradient of the gas heat transfer surface; Sh is the heat source inside the gas; Φ is the dissipation function of the gas;
Figure dest_path_image005
Figure dest_path_image005
热传导问题的控制方程可以根据Fourier传热定律和能量守恒方程来建立，对固体而言，             其瞬态温度场T(x,y,z,t)满足以下方程:The governing equation of the heat conduction problem can be established according to Fourier's heat transfer law and the energy conservation equation. For solids, Its transient temperature field T(x, y, z, t) satisfies the following equation:
         
Figure 47658dest_path_image006
Figure 47658dest_path_image006
其中， ρ代表材料密度， C T 代表材料比热， κ x ， κ y ， κ z 分别代表沿 x， y， z方向的热传导系数，Q( x, y, z, t)代表物体内部热源强度。 Among them, ρ represents the density of the material, C T represents the specific heat of the material, κ x , κ y , κ z represent the thermal conductivity along the x , y , z directions, respectively, Q( x , y , z , t ) represents the intensity of the heat source inside the object .
步骤（4）中，选择高温碳化炉外部保温层三维仿真模型的监测面为过中心点的Y方向平面。In step (4), the monitoring surface of the three-dimensional simulation model of the external insulation layer of the high-temperature carbonization furnace is selected as the Y-direction plane passing through the center point.
步骤（4）中所述仿真结果包括：监测面的温度变化云图。The simulation result in step (4) includes: the temperature change cloud map of the monitoring surface.
有益效果beneficial effect
本发明的有益效果为：本发明通过对设计过程中保温层材料的温度分布特性进行模拟从而合理确定隔热材料的选择与几何尺寸。由此可见，本发明可直观判定高温碳化炉外部保温层的隔热效果，可以更好的实现保温层隔热材料的选择并确定保温层的几何参数，从而为提高隔热效率，降低设计成本提供理论依据。The beneficial effects of the present invention are as follows: the present invention reasonably determines the selection and geometric size of the heat insulating material by simulating the temperature distribution characteristics of the heat insulating layer material in the design process. It can be seen that the present invention can intuitively determine the thermal insulation effect of the external thermal insulation layer of the high-temperature carbonization furnace, and can better realize the selection of thermal insulation materials for thermal insulation layers and determine the geometric parameters of thermal insulation layers, thereby improving thermal insulation efficiency and reducing design costs. provide a theoretical basis.
附图说明Description of drawings
图1是本发明模拟方法中建立的保温层模型示意图。FIG. 1 is a schematic diagram of the thermal insulation layer model established in the simulation method of the present invention.
图2是本发明模拟方法中建立的保温层模型计算网格示意图。FIG. 2 is a schematic diagram of the calculation grid of the thermal insulation layer model established in the simulation method of the present invention.
图3-图5是本发明中监测面的不同工作温度下保温层的温度分布特性云图。3-5 are cloud diagrams of temperature distribution characteristics of the thermal insulation layer under different working temperatures of the monitoring surface in the present invention.
本发明的最佳实施方式BEST MODE FOR CARRYING OUT THE INVENTION
以下结合附图本发明优选的具体实施例对本发明的方法作进一步地说明。The method of the present invention will be further described below with reference to the preferred specific embodiments of the present invention with the accompanying drawings.
本发明公开的一种高温碳化炉外部保温材料隔热性能的模拟方法，其特征在于所述模拟方法包括有如下步骤：The invention discloses a method for simulating the thermal insulation performance of an external thermal insulation material of a high-temperature carbonization furnace, characterized in that the method for simulating includes the following steps:
（1）、采用三维CAD（Computer Aided Design计算机辅助设计）软件SOLIDWORKS软件建立高温碳化炉保温层和炉内腔体的三维仿真模型，并设定相关参数；设定的相关参数包括：保温层几何形状和几何尺寸，内部炉腔几何形状和几何尺寸，以及石墨加热管几何形状和几何尺寸。如图1中所示，高温碳化炉保温层和炉内腔体从外到内依次为空气1、保温层一2、保温层二3、氮气层4、加热管层5、氮气层6、石墨层7及氮气层8。(1) Use 3D CAD (Computer Aided Design) software SOLIDWORKS software to establish a 3D simulation model of the thermal insulation layer and the furnace cavity of the high temperature carbonization furnace, and set relevant parameters; the relevant parameters set include: thermal insulation layer geometry Shape and geometry, internal furnace chamber geometry and geometry, and graphite heating tube geometry and geometry. As shown in Figure 1, the high temperature carbonization furnace insulation layer and furnace cavity are air 1, insulation layer 1 2, insulation layer 2 3, nitrogen layer 4, heating tube layer 5, nitrogen layer 6, graphite from outside to inside. layer 7 and nitrogen layer 8.
（2）、将三维仿真模型进行网格划分；将步骤（1）建立的碳化炉保温层和炉内腔体的三维仿真模型传递到ICEM软件的Blocking模块中，在Blocking模块中采用O-Block方式对三维仿真模型进行网格划分，如图2中所示，网格划分策略采用BiGeometric方式，控制比率因子为默认值1.2，根据软件中网格质量的判断标准，同时保证整体结构的网格质量大于0.9，同时为了便于后期设置计算条件，定义所有三维仿真模型的进出口与壁面边界名称，主要包括保温层，加热管壁面，炉腔壁面；(2) Mesh the three-dimensional simulation model; transfer the three-dimensional simulation model of the carbonization furnace insulation layer and furnace cavity established in step (1) to the Blocking module of the ICEM software, and use O-Block in the Blocking module. The three-dimensional simulation model is meshed by using the method of meshing, as shown in Figure 2, the meshing strategy adopts the BiGeometric method, and the control ratio factor is the default value of 1.2. According to the judgment standard of the mesh quality in the software, the mesh of the overall structure is guaranteed at the same time. The mass is greater than 0.9, and in order to facilitate the later setting of calculation conditions, the names of the inlet and outlet and wall boundaries of all 3D simulation models are defined, mainly including the insulation layer, the wall surface of the heating tube, and the wall surface of the furnace cavity;
（3）、将步骤（2）中划分好的三维仿真模型导入ANSYS软件的FLUENT模块，并对FLUENT模块进行设置；(3) Import the 3D simulation model divided in step (2) into the FLUENT module of the ANSYS software, and set the FLUENT module;
（4）、在ANSYS软件中的FLUENT模块里设置温度检测面，并进行仿真运算得到结果，以此作为判定高温碳化炉保温层材料隔热性能的指标；具体对ANSYS软件中的FLUENT进行设置的过程如下：(4) Set the temperature detection surface in the FLUENT module in the ANSYS software, and perform simulation operations to obtain the results, which are used as indicators to determine the thermal insulation performance of the thermal insulation layer material of the high-temperature carbonization furnace; specifically, the FLUENT in the ANSYS software is set. The process is as follows:
（4.1）、在User Defined选项导入根据设备运行工艺参数编制的自定义温度参数；(4.1), in the User Defined option, import the custom temperature parameters prepared according to the operating process parameters of the equipment;
（4.2）、在General选项中，将y方向Gravitational Acceleration 根据要求设定为预设值，time选项设置为Transient瞬态传热；(4.2), in the General option, set the y direction to Gravitational Acceleration is set to the preset value according to the requirements, and the time option is set to Transient transient heat transfer;
（4.3）、将Models选项中的Energy勾选Energy Equation，Viscous Models选项中选取laminar 模型，为了判断炉腔内气流运动状态，引入雷诺数进行描述，雷诺数的计算公式为：(4.3), check Energy Equation in the Energy in the Models option, and select laminar in the Viscous Models option Model, in order to judge the airflow movement state in the furnace cavity, the Reynolds number is introduced to describe, the calculation formula of Reynolds number is:
Figure dest_path_image007
Figure dest_path_image007
其中，其中 v 、ρ、μ分别为流体的流速、密度与黏性系数， d为特征长度。通过雷诺数的计算，进而选择湍流模型为laminar模型； Among them, where v , ρ, μ are the flow velocity, density and viscosity coefficient of the fluid, respectively, and d is the characteristic length. Through the calculation of the Reynolds number, the turbulence model is selected as the laminar model;
（4.4）、将Models选项中的Radiation Model勾选Surface to Surface,并在View Factor and Clustering选项点击Compute/Write/Read进行保存；(4.4), check the Radiation Model in the Models option Surface to Surface, and click Compute/Write/Read in the View Factor and Clustering option to save;
（4.5）、在Materials Fluid选项部分选择氧气和氮气，在Materials Solid选项部分新建保温材料，材料的属性主要有密度、比热容、导热系数，然后分别选择每种新建的保温材料；(4.5) Select oxygen and nitrogen in the Materials Fluid option section, and create a new insulation material in the Materials Solid option section. The properties of the material mainly include density, specific heat capacity, and thermal conductivity, and then select each new insulation material separately;
（4.6）、在Cell Zone Conditions选项中将Fluid1部分设为氮气，Fluid2部分设为氮气，Fluid3部分设为空气；将Solid1部分设为第一种保温材料，Solid2部分设为第二种保温材料，Solid3部分设为第三种保温材料；(4.6), in Cell Zone In the Conditions option, set the Fluid1 part to nitrogen, the Fluid2 part to nitrogen, and the Fluid3 part to air; set the Solid1 part to the first thermal insulation material, the Solid2 part to the second thermal insulation material, and the Solid3 part to the third thermal insulation material Insulation Materials;
（4.7）、在Boundary Conditions选项中设置保温材料之间的传热方式为Coupled，加热管表面设置为UDF定义每小时内管壁温度值，炉腔内气体与保温材料、加热管之间传热方式为Coupled；(4.7), in Boundary In the Conditions option, set the heat transfer mode between the insulation materials to Coupled, set the heating tube surface to UDF to define the inner tube wall temperature value per hour, and set the heat transfer mode between the gas in the furnace cavity, the thermal insulation material, and the heating tube to Coupled;
（4.8）、选择Check case后进行计算；选择Check case后进行计算基础的高温碳化炉传热计算的三维数学模型，包含的三维连续性方程、动量方程、能量方程分别如公式(1)、(2)、(3)所示：(4.8) Calculate after selecting Check case; after selecting Check case, the three-dimensional mathematical model for heat transfer calculation of high temperature carbonization furnace based on calculation, including three-dimensional continuity equation, momentum equation, and energy equation are respectively as formulas (1), ( 2) and (3) are shown:
Figure 239605dest_path_image008
                  (1)
Figure 239605dest_path_image008
 (1)
式中， ρ-流体密度； t-时间；V-速度矢量，其中 u 、 v 、 w为V在 x、 y及 z三个方向上的分量。 In the formula, ρ - fluid density; t - time; V - velocity vector, where u , v , w are the components of V in the three directions of x , y and z .
动量方程的Navier-Stokes方程：Navier-Stokes equation for momentum equation:
Figure dest_path_image009
        (2)
Figure dest_path_image009
 (2)
其中， μ是动力黏度， F b 是微元上的体积力。 where μ is the dynamic viscosity, and F b is the volume force on the micro-element.
能量守恒方程：Energy conservation equation:
         
Figure 585136dest_path_image010
 (3)
Figure 585136dest_path_image010
 (3)
其中， h为炉内气体的比焓； λ为炉内气体的导热系数； gradT为气体传热面法向温度梯度； S h 为气体内部的热源； Φ为气体的耗散函数； where h is the specific enthalpy of the gas in the furnace; λ is the thermal conductivity of the gas in the furnace; gradT is the normal temperature gradient of the gas heat transfer surface; Sh is the heat source inside the gas; Φ is the dissipation function of the gas;
Figure dest_path_image011
Figure dest_path_image011
热传导问题的控制方程可以根据Fourier传热定律和能量守恒方程来建立，对固体而言，其瞬态温度场T(x,y,z,t)满足以下方程：The governing equation of the heat conduction problem can be established according to the Fourier heat transfer law and the energy conservation equation. For a solid, its transient temperature field T(x, y, z, t) satisfies the following equation:
         
Figure 938757dest_path_image012
Figure 938757dest_path_image012
其中， ρ代表材料密度， C T 代表材料比热， κ x ， κ y ， κ z 分别代表沿 x， y， z方向的热传导系数，Q( x, y, z, t)代表物体内部热源强度。 Among them, ρ represents the density of the material, C T represents the specific heat of the material, κ x , κ y , κ z represent the thermal conductivity along the x , y , z directions, respectively, Q( x , y , z , t ) represents the intensity of the heat source inside the object .
本步步骤中选择高温碳化炉外部保温层三维仿真模型的监测面为过中心点的Y方向平面。所述仿真结果包括：监测面的温度变化云图。In this step, the monitoring surface of the three-dimensional simulation model of the external insulation layer of the high-temperature carbonization furnace is selected as the Y-direction plane passing through the center point. The simulation result includes: the temperature change cloud map of the monitoring surface.
（5）、在相同设置条件下，通过将三维仿真模型设置不同参数并重复步骤（1）-（4），以进行多次模拟计算，由高温碳化炉保温层温度分布特性云图，以此确定不同保温层的材料与几何尺寸，本发明可直观判定高温碳化炉保温材料的隔热性能，可以更好的实现高温碳化炉保温材料隔热性能的判定，并合理的选择保温材料的物理参数与几何参数，从而为提高高温碳化炉的保温性能与降低设计成本提供理论依据。。(5) Under the same setting conditions, by setting different parameters of the three-dimensional simulation model and repeating steps (1)-(4) to perform multiple simulation calculations, the temperature distribution characteristics of the high-temperature carbonization furnace insulation layer are determined from the cloud map. With different materials and geometric dimensions of the thermal insulation layer, the present invention can intuitively determine the thermal insulation performance of the thermal insulation material of the high temperature carbonization furnace, can better realize the thermal insulation performance determination of the thermal insulation material of the high temperature carbonization furnace, and reasonably select the physical parameters of the thermal insulation material and the thermal insulation properties of the thermal insulation material. The geometric parameters can be used to provide a theoretical basis for improving the thermal insulation performance and reducing the design cost of the high temperature carbonization furnace. .
本发明通过在加热管壁面边界中修改温度大小可以得出不同加热温区下高温碳化炉外部保温材料隔热性能，对比监测面处不同加热温度时保温层的温度变化云图可以看出，如图3-图5所示，保温层内温度分布不均匀，加热管附近温度最高，外部保温层隔热效果明显，采用导热系数低的保温层隔热效果明显，温度随着保温层厚度的增加逐渐降低。为验证ANSYS的仿真结果，应多次模拟，比较分析结果，得出高温碳化炉外部保温层材料隔热效果与几何尺寸的最佳方案。In the present invention, the thermal insulation performance of the external thermal insulation material of the high-temperature carbonization furnace under different heating temperature zones can be obtained by modifying the temperature in the boundary of the heating tube wall. 3-Figure 5 shows that the temperature distribution in the insulation layer is uneven, the temperature near the heating pipe is the highest, and the insulation effect of the external insulation layer is obvious. The insulation effect of the insulation layer with low thermal conductivity is obvious, and the temperature gradually increases with the thickness of the insulation layer. reduce. In order to verify the simulation results of ANSYS, several simulations should be performed, and the analysis results should be compared to obtain the best solution for the thermal insulation effect and geometric size of the external thermal insulation layer of the high temperature carbonization furnace.
本发明所述的实施例仅仅是对本发明的优选实施方式进行的描述，并非对本发明构思和范围进行限定，在不脱离本发明设计思想的前提下，本领域中工程技术人员对本发明的技术方案作出的各种变型和改进，均应落入本发明的保护范围，本发明请求保护的技术内容，已经全部记载在权利要求书中。The embodiments of the present invention are only descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Various modifications and improvements made should fall within the protection scope of the present invention, and the technical content claimed in the present invention has been fully recorded in the claims.

Claims (6)

  1. 一种高温碳化炉外部保温材料隔热性能的模拟方法，其特征在于所述模拟方法包括有如下步骤：A method for simulating the thermal insulation performance of an external thermal insulation material of a high-temperature carbonization furnace, characterized in that the method for simulating comprises the following steps:
    （1）、采用三维CAD软件SOLIDWORKS软件建立高温碳化炉保温层和炉内腔体的三维仿真模型，并设定相关参数；(1) Use the 3D CAD software SOLIDWORKS software to establish the 3D simulation model of the thermal insulation layer and the furnace cavity of the high temperature carbonization furnace, and set the relevant parameters;
    （2）、将三维仿真模型进行网格划分；将步骤（1）建立的碳化炉保温层和炉内腔体的三维仿真模型传递到ICEM软件的Blocking模块中，在Blocking模块中采用O-Block方式对三维仿真模型进行网格划分, 网格划分策略采用BiGeometric方式，控制比率因子为默认值1.2，根据软件中网格质量的判断标准，同时保证整体结构的网格质量大于0.9，同时为了便于后期设置计算条件，定义所有三维仿真模型的进出口与壁面边界名称，包括保温层，加热管壁面，炉腔壁面；(2) Mesh the three-dimensional simulation model; transfer the three-dimensional simulation model of the carbonization furnace insulation layer and furnace cavity established in step (1) to the Blocking module of the ICEM software, and use O-Block in the Blocking module. The 3D simulation model is meshed by using the BiGeometric method, and the control ratio factor is the default value of 1.2. According to the grid quality judgment standard in the software, the grid quality of the overall structure is guaranteed to be greater than 0.9. At the same time, in order to facilitate the Set the calculation conditions in the later stage, and define the names of the inlet, outlet and wall boundaries of all 3D simulation models, including the insulation layer, the heating tube wall, and the furnace cavity wall;
    （3）、将网格划分好的三维仿真模型导入ANSYS软件的FLUENT模块，并对FLUENT模块进行设置；(3) Import the meshed 3D simulation model into the FLUENT module of ANSYS software, and set the FLUENT module;
    （4）、在ANSYS软件中的FLUENT模块里设置温度检测面，并进行仿真运算得到结果，以此作为判定高温碳化炉保温层材料隔热性能的指标；(4) Set the temperature detection surface in the FLUENT module in the ANSYS software, and perform simulation operations to obtain the results, which are used as indicators to determine the thermal insulation performance of the thermal insulation layer material of the high temperature carbonization furnace;
    （5）、在相同设置条件下，通过将三维仿真模型设置不同参数并重复步骤（1）-（4），以进行多次模拟计算，由高温碳化炉保温层温度分布特性云图，以此确定不同保温层的材料与几何尺寸。(5) Under the same setting conditions, by setting different parameters of the three-dimensional simulation model and repeating steps (1)-(4) to perform multiple simulation calculations, the temperature distribution characteristics of the high-temperature carbonization furnace insulation layer are determined from the cloud map. Materials and geometric dimensions of different insulation layers.
  2. 根据权利要求1所述的一种高温碳化炉外部保温材料隔热性能的模拟方法，其特征在于所述：步骤（1）中设定的相关参数包括：保温层几何形状和几何尺寸，内部炉腔几何形状和几何尺寸，以及石墨加热管几何形状和几何尺寸。A method for simulating the thermal insulation performance of an external thermal insulation material of a high temperature carbonization furnace according to claim 1, wherein the relevant parameters set in step (1) include: the geometric shape and geometric size of the thermal insulation layer, the internal furnace Cavity geometry and geometry, and graphite heating tube geometry and geometry.
  3. 根据权利要求1所述的一种高温碳化炉外部保温材料隔热性能的模拟方法，其特征在于所述：步骤（4）中，对ANSYS软件中的FLUENT进行设置的过程如下：The method for simulating the thermal insulation performance of an external thermal insulation material of a high-temperature carbonization furnace according to claim 1, characterized in that: in step (4), the process of setting FLUENT in the ANSYS software is as follows:
    （4.1）、在User Defined选项导入根据设备运行工艺参数编制的自定义温度参数；(4.1), in the User Defined option, import the custom temperature parameters prepared according to the operating process parameters of the equipment;
    （4.2）、在General选项中，将y方向Gravitational Acceleration 根据要求设定为预设值，time选项设置为Transient瞬态传热；(4.2) In the General option, set the Gravitational Acceleration in the y direction to the preset value according to the requirements, and set the time option to Transient transient heat transfer;
    （4.3）、将Models选项中的Energy勾选Energy Equation，Viscous Models选项中选取laminar 模型，为了判断炉腔内气流运动状态，引入雷诺数进行描述，雷诺数的计算公式为：(4.3) Check the Energy Equation in the Models option, and select the laminar model in the Viscous Models option. In order to judge the airflow movement state in the furnace cavity, the Reynolds number is introduced for description. The calculation formula of the Reynolds number is:
    Figure dest_path_image001
                     
    Figure dest_path_image001
    其中，其中 v 、ρ、μ分别为流体的流速、密度与黏性系数， d为特征长度；通过雷诺数的计算，进而选择湍流模型为laminar模型； Among them, v , ρ, μ are the flow velocity, density and viscosity coefficient of the fluid, respectively, and d is the characteristic length; through the calculation of the Reynolds number, the turbulence model is selected as the laminar model;
    （4.4）、将Models选项中的Radiation Model勾选Surface to Surface,并在View Factor and Clustering选项点击Compute/Write/Read进行保存；(4.4), check the Radiation Model in the Models option Surface to Surface, and click Compute/Write/Read in the View Factor and Clustering option to save;
    （4.5）、在Materials Fluid选项部分选择氧气和氮气，在Materials Solid选项部分新建保温材料，材料的属性主要有密度、比热容、导热系数，然后分别选择每种新建的保温材料；(4.5) Select oxygen and nitrogen in the Materials Fluid option section, and create a new insulation material in the Materials Solid option section. The properties of the material mainly include density, specific heat capacity, and thermal conductivity, and then select each new insulation material separately;
    （4.6）、在Cell Zone Conditions选项中将Fluid1部分设为氮气，Fluid2部分设为氮气，Fluid3部分设为空气；将Solid1部分设为第一种保温材料，Solid2部分设为第二种保温材料，Solid3部分设为第三种保温材料；(4.6) In the Cell Zone Conditions option, set the Fluid1 part to nitrogen, the Fluid2 part to nitrogen, and the Fluid3 part to air; set the Solid1 part as the first thermal insulation material, and the Solid2 part as the second thermal insulation material, The Solid3 part is set as the third thermal insulation material;
    （4.7）、在Boundary Conditions选项中设置保温材料之间的传热方式为Coupled，加热管表面设置为UDF定义每小时内管壁温度值，炉腔内气体与保温材料、加热管之间传热方式为Coupled；(4.7), in the Boundary Conditions option, set the heat transfer mode between insulation materials to Coupled, set the heating tube surface to UDF to define the inner tube wall temperature value per hour, and heat transfer between the gas in the furnace cavity and the insulation materials and heating tubes The method is Coupled;
    （4.8）、选择Check case后进行计算。(4.8) Calculate after selecting Check case.
  4. 根据权利要求3所述的一种高温碳化炉外部保温材料隔热性能的模拟方法，其特征在于所述：步骤（4.8）中选择Check case后进行计算基础的高温碳化炉传热计算的三维数学模型，包含的三维连续性方程、动量方程、能量方程分别如公式(1)、(2)、(3)所示：The method for simulating the thermal insulation performance of an external thermal insulation material of a high-temperature carbonization furnace according to claim 3, characterized in that: in step (4.8), after selecting the Check case, a three-dimensional mathematical calculation of the heat transfer calculation of the high-temperature carbonization furnace based on the calculation basis is performed. The model, including the three-dimensional continuity equation, momentum equation, and energy equation, are shown in formulas (1), (2), and (3) respectively:
    Figure 613902dest_path_image002
                      (1)
    Figure 613902dest_path_image002
     (1)
    式中， ρ-流体密度； t-时间；V-速度矢量，其中 u 、v 、w为V在x、y及z三个方向上的分量； In the formula, ρ - fluid density; t - time; V - velocity vector, where u , v , w are the components of V in the three directions of x, y and z;
    动量方程的Navier-Stokes方程：Navier-Stokes equation for momentum equation:
    Figure dest_path_image003
            (2)
    Figure dest_path_image003
     (2)
    其中， μ是动力黏度， F b 是微元上的体积力； Among them, μ is the dynamic viscosity, F b is the volume force on the micro-element;
    能量守恒方程：Energy conservation equation:
       
    Figure 343960dest_path_image004
         (3)
    Figure 343960dest_path_image004
     (3)
    其中， h为炉内气体的比焓； λ为炉内气体的导热系数； gradT为气体传热面法向温度梯度； S h 为气体内部的热源； Φ为气体的耗散函数； where h is the specific enthalpy of the gas in the furnace; λ is the thermal conductivity of the gas in the furnace; gradT is the normal temperature gradient of the gas heat transfer surface; Sh is the heat source inside the gas; Φ is the dissipation function of the gas;
    Figure dest_path_image005
    热传导问题的控制方程可以根据Fourier传热定律和能量守恒方程来建立，对固体而言，其瞬态温度场T(x,y,z,t)满足以下方程:
    Figure dest_path_image005
     The governing equation of the heat conduction problem can be established according to Fourier's heat transfer law and the energy conservation equation. For a solid, its transient temperature field T(x, y, z, t) satisfies the following equation:
             
    Figure 543997dest_path_image006
    Figure 543997dest_path_image006
    其中， ρ代表材料密度， C T 代表材料比热， κ x ， κ y ， κ z 分别代表沿 x， y， z方向的热传导系数，Q( x, y, z, t)代表物体内部热源强度。 Among them, ρ represents the density of the material, C T represents the specific heat of the material, κ x , κ y , κ z represent the thermal conductivity along the x , y , z directions, respectively, Q( x , y , z , t ) represents the intensity of the heat source inside the object .
  5. 根据权利要求1所述的一种高温碳化炉外部保温材料隔热性能的模拟方法，其特征在于：步骤（4）中，选择高温碳化炉外部保温层三维仿真模型的监测面为过中心点的Y方向平面。A method for simulating the thermal insulation performance of an external thermal insulation material of a high-temperature carbonization furnace according to claim 1, characterized in that: in step (4), the monitoring surface of the three-dimensional simulation model of the external thermal insulation layer of the high-temperature carbonization furnace is selected as the one passing through the center point. Y-direction plane.
  6. 根据权利要求1所述的一种高温碳化炉外部保温材料隔热性能的模拟方法，其特征在于：步骤（4）中所述仿真结果包括：监测面的温度变化云图。The method for simulating the thermal insulation performance of an external thermal insulation material of a high-temperature carbonization furnace according to claim 1, wherein the simulation result in step (4) includes: a temperature change cloud map of the monitoring surface.
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