面向精密分析仪器的加热炉体温度场分布特征研究
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摘要
热分析仪属于精密分析仪器,需要具有较高的测试分析性能要求,对热分析仪器炉体温度场分布特征的研究是实现其精密计量分析的必要前提条件。传统的炉体由于气流对温度分布的影响,容易产生测量误差。对炉体结构进行适当调整,可提高仪器的分析精度,改变其温漂特性。建立了炉体三维优化分布模型,应用有限元分析软件中的热分析模块对温度场进行分析。通过对热分析仪器的热力学分析、传热方式研究、不同进气流量下的炉腔温度场分析,阐述了热分析炉体温度场分布与气氛流量、炉体方向等之间的热传导关系。这一分析方法和理论结果可作为热分析仪器炉体温度场、炉内均温区分布情况的参考,为仪器的温度测量的可靠性、准确性、热分析仪的温度控制等研究提供依据。
Thermal analysis instruments usually have high performance requirements,and the study of the temperature field distribution of the furnace is the prerequisite for the realization of precise econometric analysis.Due to the influence of air flow on the temperature distribution,the traditional furnace is prone to measurement error.Adjustingthe mechanical structure of furnace can improve the accuracy of the equipmentand change its temperature drift characteristics.In this paper,a three-dimensional optimal distribution model of furnace body is established.And the finite element analysis software is used to analyze the temperature field.In this paper,with the analysis of thermodynamics,heat transfer methods,temperature field distribution under different inlet flow,the relationship between the temperature field distribution of the furnace and the gas flow,and the direction of the furnace is described.It provides a theoretical basis for improving the accuracy of temperature control of the thermal analysis instrument.The analysis method and theoretical results can be used as a reference for distribution of thermal analysis instrument furnace temperature field and uniform temperature region in the furnace.And then it provides the basis for the research of the temperature control of the thermal analyzer.And it can lay a foundation for improving the repeat ability,accuracy and stability of the thermal analysis instrument.
Thermal analysis instruments usually have high performance requirements,and the study of the temperature field distribution of the furnace is the prerequisite for the realization of precise econometric analysis.Due to the influence of air flow on the temperature distribution,the traditional furnace is prone to measurement error.Adjustingthe mechanical structure of furnace can improve the accuracy of the equipmentand change its temperature drift characteristics.In this paper,a three-dimensional optimal distribution model of furnace body is established.And the finite element analysis software is used to analyze the temperature field.In this paper,with the analysis of thermodynamics,heat transfer methods,temperature field distribution under different inlet flow,the relationship between the temperature field distribution of the furnace and the gas flow,and the direction of the furnace is described.It provides a theoretical basis for improving the accuracy of temperature control of the thermal analysis instrument.The analysis method and theoretical results can be used as a reference for distribution of thermal analysis instrument furnace temperature field and uniform temperature region in the furnace.And then it provides the basis for the research of the temperature control of the thermal analyzer.And it can lay a foundation for improving the repeat ability,accuracy and stability of the thermal analysis instrument.
引文
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[15]黄强,滕召胜,唐享,等.电磁力平衡传感器非线性的温度影响与补偿[J].仪器仪表学报,2015,36(6):1415-1423.HUANG Q,TENG ZH SH,TANG X,et al.The influence of temperature on electromagnetic force balance sensor nonlinear compensation and instrument[J].Chinese Journal of Scientific Instrument,2015,36(6):1415-1423.
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[17]浦广益.ANSYS Workbench基础教程与实例详解[M].北京:中国水利水电出版社,2010:89-90.PU G Y.Basic Tutorial with Detailed Examples of ANSYS Workbench[M].Beijing:Water Conservancy and Hydropower Press,2010:89-90.
[18]王晓娜,曾颖,张炜,等.差示扫描量热仪炉膛温度场仿真研究[J].计算机与应用化学,2014,31(5):551-554.WANG X N,ZENG Y,ZHANG W,et al.Simulation of the temperature field in the furnace of differential scanning calorimeter[J].Computer and Applied Chemistry,2014,31(5):551-554.
[19]廖宁波,周静雷.基于ANSYS Workbench的微型扬声器振膜的有限元分析[J].电子测量技术,2014,37(9):45-49.LIAO N B,ZHOU J L.Finite element analysis of diaphragm for micro loudspeaker based on ANSYSWorkbench[J].Electronic Measurement Technology,2014,37(9):45-49.
[20]刘润,李海兵,王姝歆.高精度石英挠性加速度计的温度场分析[J].电子测量技术,2015,38(2):6-9.LIU R,LI H B,WANG SH X.Temperature field analysis of high precision Quartz flexible accelerometer[J].Electronic Measurement Technology 2015,38(2):6-9.
[21]何子路,卜雄洙,于靖.干式离合器钢片摩擦传热的有限元分析[J].国外电子测量技术,2016,35(11):32-35.HE Z L,BO X ZH,YU J.Finite element analysis of dry clutch sheet steels friction and heat transfer[J].Foreign Electronic Measurement Technology,2016,35(11):32-35.
[22]马占龙,王高文,张健,等.基于有限元及神经网络的磨削温度仿真预测[J].电子测量与仪器学报,2013,27(11):1080-1085.MA ZH L,WANG G W,ZHANG J,et al.Simulation and forecast of the grinding temperature based on finite element and neural network[J].Journal of Electronic Measurement and Instrument,2013,27(11):1080-1085.
[2]唐享,滕召胜,黄强,等.脉宽调制式电子分析天平的漂移补偿方法研究[J].仪器仪表学报,2014,35(11):2466-2472.TANG X,TENG ZH SH,HUANG Q,et al.Study on drift compensation method of PWM electronic analytical balance[J].Chinese Journal of Scientific Instrument,2014,35(11):2466-2472.
[3]黄强,滕召胜,唐享,等.电子分析天平温度漂移的加权融合补偿方法[J].电子测量与仪器学报,2015,29(8):1121-1129.HUANG Q,TENG ZH SH,TANG X,et al.The weighted fusion balance temperature drift compensation method[J].Journal of Electronic Measurement and Instrumentation,2015,29(8):1121-1129.
[4]王家龙,骆东淼,姜著成.我国热分析仪的现状和发展[J].中国仪器仪表,2008(10):28-30.WANG J L,LUO D M,JIANG Zh CH.The status and development of chinese thermal analysis instrument[J].China Instrument,2008(10):28-30.
[5]张美玲,孙元雪,闫立东.热分析技术的应用[J].化工中间体,2012(2):54-56.ZHANG M L,SUN Y X,YAN L D.The application of thermal analysis techniques[J].Chemical Intermediate,2012(2):54-56.
[6]王岩,况军.热分析技术的发展现状及其在稀土功能材料中的应用[J].金属功能材料,2014(4):43-46,56.WANG Y,KUANG J.Development of thermal analysis technology and its application in rare earth functional materials[J].Metal Functional Materials,2014(4):43-46,56.
[7]黄张洪,赵惠,吕利强,等.热分析技术及其应用[J].热加工工艺,2010,39(7):19-26.HUANG ZH H,ZHAO H,LV L Q,et al.Thermal analysis technology and its application[J].Hot Working Technology,2010,39(7):19-26.
[8]钟洪钧,胡运发.虚拟仪表综合热分析仪[J].计算机工程,2007,33(5):234-236.ZHONG H J,HU Y F.Virtual instrument integrated thermal analyzer[J].Computer Engineering,2007,33(5):234-236.
[9]陈联群,曾红梅,蒋杰,等.温度对CDR-1型差动热分析仪仪器常数的影响[J].现代仪器,2007,13(2):30-33.CHEN L Q,ZENG H M,JIANG J,et al.Effect of temperature on the constant of CDR-1 dynamic differential thermal analyzer instrument[J].Modern Instruments,2007,13(2):30-33.
[10]任婉婷,王颖.功率补偿式DSC曲线的理论分析[J].纺织学报,2010,31(1):11-18.REN W T,WANG Y.Analysis of power compensation DSC curve theory[J].Journal of Textile Research,2010,31(1):11-18.
[11]徐阳,傅燕翔,王龙.差示扫描量热仪校准方法[J].计量与测试技术,2012,39(8):14,16.XU Y,FU Y X,WANG L.Calibration method of differential scanning calorimeter[J].Metrology and Testing Technology,2012,39(8):14,16.
[12]吴国新,徐小力,时延辉,等.基于TRIZ理论的热分析仪加热炉体设计[J].北京信息科技大学学报:自然科学版,2010,25(3):65-70.WU G X,XU X L,SHI Y H,et al.Heating furnace design for the thermal analysis in strum based on TRIZ theory[J].Journal of Beijing Information Science and Technology University:Natural Science Edition,2010,25(3):65-70.
[13]杨维祎,郭颖,王雪峰,等.基于TI杯电子竞赛的金属探测系统设计[J].国外电子测量技术,2015,34(2):54-57.YANG W Y,GUO Y,WANG X F,et al.Design of metal detection system based on TI cup electronic competition[J].Foreign Electronic Measurement Technology,2015,34(2):54-57.
[14]梅新勇,高锦宏,徐小力.对传统差示热分析仪(DSC)的改进方法[J].北京机械工业学院学报,2005,20(3):35-37.MEI X Y,GAO J H,XU X L.On high,the traditional differential thermal analyzer(DSC)method[J].Journal of Beijing Insititute of Machinery Industry,2005,20(3):35-37.
[15]黄强,滕召胜,唐享,等.电磁力平衡传感器非线性的温度影响与补偿[J].仪器仪表学报,2015,36(6):1415-1423.HUANG Q,TENG ZH SH,TANG X,et al.The influence of temperature on electromagnetic force balance sensor nonlinear compensation and instrument[J].Chinese Journal of Scientific Instrument,2015,36(6):1415-1423.
[16]阚哲,孟国营,王晓蕾,等.基于遗传算法的炉膛温度场重建算法研究[J].电子测量与仪器学报,2014,28(10):1149-1154.KAN ZH,MENG G Y,WANG X L,et al.Research of boiler temperature field reconstruction algorithm based on genetic algorithm[J].Journal of Electronic Measurement and Instrumentation,2014,28(10):1149-1154.
[17]浦广益.ANSYS Workbench基础教程与实例详解[M].北京:中国水利水电出版社,2010:89-90.PU G Y.Basic Tutorial with Detailed Examples of ANSYS Workbench[M].Beijing:Water Conservancy and Hydropower Press,2010:89-90.
[18]王晓娜,曾颖,张炜,等.差示扫描量热仪炉膛温度场仿真研究[J].计算机与应用化学,2014,31(5):551-554.WANG X N,ZENG Y,ZHANG W,et al.Simulation of the temperature field in the furnace of differential scanning calorimeter[J].Computer and Applied Chemistry,2014,31(5):551-554.
[19]廖宁波,周静雷.基于ANSYS Workbench的微型扬声器振膜的有限元分析[J].电子测量技术,2014,37(9):45-49.LIAO N B,ZHOU J L.Finite element analysis of diaphragm for micro loudspeaker based on ANSYSWorkbench[J].Electronic Measurement Technology,2014,37(9):45-49.
[20]刘润,李海兵,王姝歆.高精度石英挠性加速度计的温度场分析[J].电子测量技术,2015,38(2):6-9.LIU R,LI H B,WANG SH X.Temperature field analysis of high precision Quartz flexible accelerometer[J].Electronic Measurement Technology 2015,38(2):6-9.
[21]何子路,卜雄洙,于靖.干式离合器钢片摩擦传热的有限元分析[J].国外电子测量技术,2016,35(11):32-35.HE Z L,BO X ZH,YU J.Finite element analysis of dry clutch sheet steels friction and heat transfer[J].Foreign Electronic Measurement Technology,2016,35(11):32-35.
[22]马占龙,王高文,张健,等.基于有限元及神经网络的磨削温度仿真预测[J].电子测量与仪器学报,2013,27(11):1080-1085.MA ZH L,WANG G W,ZHANG J,et al.Simulation and forecast of the grinding temperature based on finite element and neural network[J].Journal of Electronic Measurement and Instrument,2013,27(11):1080-1085.