基于TRIZ的凹印机热交换器节能研究
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摘要
目的对凹版印刷机热交换器结构进行改进设计,以降低能耗。方法对热交换器进行结构分析、加热管热辐射传热分析、对流传热分析、热损耗分析,借助TRIZ理论对热交换器进行节能设计,并在传热数学算法的基础上对改进方案进行验证。结果采用发射率为0.05,抛光且未氧化的黄铜作为铜基纤焊翅片管材料,翅片管的产热效率从原来的88.4%提高到96.1%,热风被加热的温度从80℃提高到84℃。结论采用肋化系数和发射率恰当的翅片管,可较明显降低热交换器的热辐射率,提高热交换器的产热效率。
The work aims to reduce the energy consumption by improving the design of the heat exchanger structure of the gravure press. By analyzing the structure of heat exchanger, heat transfer by heat radiation of the heating pipe, convective heat transfer and heat loss, the energy saving of heat exchanger was designed with the help of TRIZ theory. Moreover, the improved scheme was verified based on the mathematical algorithms for heat transfer. With the polished and unoxidized brass(emissivity: 0.05) as the material of copper-based brazed finned tube, the heat-producing efficiency of finned tube was increased from original 88.4% to 96.1%. The hot air was heated from 80 to 84 ℃ ℃. The heat radiation rate of the heat exchanger can be reduced obviously and the heat-producing efficiency of the heat er can be improved by using the finned tubes with appropriate finned coefficient and emissivity.
The work aims to reduce the energy consumption by improving the design of the heat exchanger structure of the gravure press. By analyzing the structure of heat exchanger, heat transfer by heat radiation of the heating pipe, convective heat transfer and heat loss, the energy saving of heat exchanger was designed with the help of TRIZ theory. Moreover, the improved scheme was verified based on the mathematical algorithms for heat transfer. With the polished and unoxidized brass(emissivity: 0.05) as the material of copper-based brazed finned tube, the heat-producing efficiency of finned tube was increased from original 88.4% to 96.1%. The hot air was heated from 80 to 84 ℃ ℃. The heat radiation rate of the heat exchanger can be reduced obviously and the heat-producing efficiency of the heat er can be improved by using the finned tubes with appropriate finned coefficient and emissivity.
引文
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[9]金琳,李艳,王仪明,等.基于传热介质的蒸汽加热凹印机能耗测试方法研究[J].包装工程,2015,36(5):105—111.JIN Lin,LI Yan,WANG Yi-Ming,et al.Energy Consumption Test Method for Steam Heating Gravure Based on Heat Transfer Medium[J].Packaging Engineering,2015,36(5):105—111.
[10]张有为,李辉,姜培学.采用共轭梯度法的管内壁温度导热反问题求解[J].工程热物理学报,2009,30(7):1188—1190.ZHANG You-wei,LI Hui,JIANG Pei-xue.Inverse Heat Conduction Problem of Deducing Inner Wall Temperature by Using Conjugate Gradient Method[J].Journal of Engineering Thermophysics,2009,30(7):1188—1190.
[11]任洪娟.螺旋翅片管自然对流换热实验研究[D].济南:山东大学,2002.REN Hong-Juan.Experiment Study on Natural Convection Heat Transfer of Spiral Finned Tubes[D].Shangdong:Shangdong University,2002.
[12]张肖.基于TRIZ的印刷机械创新设计方案评价体系研究[D].北京:北京印刷学院,2012.ZHANG Xiao.Research on Innovative Design Evaluation System of Printing Machinery Based on TRIZ[D].Beijing:Beijing Institute of Graphic Communication,2012.
[13]李艳.基于TRIZ的印刷机械创新设计理论和方法[M].北京:机械工业出版社,2014.LI Yan.Theory and Method of Innovation Design of Printing Machinery Based on TRIZ[M].Beijin:China Machine Press,2014.
[14]徐共荣.红外低发射率涂料的研制及其在涤/棉混纺织物热红外伪装的应用[D].杭州:浙江理工大学,2013.XU Gong-rong.Preparation of Low Infrared Emissivity Coating and its Application in Cotton/Polyester Blended Fabrics of Thermal Infrared Camouflage[D].Hangzhou:Zhejiang Sci-Tech University,2013.
[15]杨建武,黄克坚.Cu/Al复合翅片管生产工艺的研究[J].南昌大学学报,2001,23(2):72—77.YANG Jian-wu,HUANG Ke-jian.The Production Process Study of Cu/Al Multiunit Fin Tube[J].Journal of Nanchang University,2001,23(2):72—77.
[2]金琳,李艳,王仪明,等.基于测试的凹印机能效分析[J].包装工程,2014,35(19):119—124.JIN Lin,LI Yan,WANG Yi-Ming,et al.Energy Efficiency Analysis of Gravure Press Based on Energy Consumption Test[J].Packaging Engineering,2014,35(19):119—124.
[3]杨世铭.传热学[M].北京:高等教育出版社,2006.YANG Shi-ming.Heat Transfer Theory[M].Beijing:Higher Education Press,2006.
[4]茹卡乌卡斯.热交换器内的对流换热[M].马昌文,居兹泉,肖宏才,译.北京:科学出版社,1986.JUCA Wu-kasi.Convective Heat Transfer in the Heat Exchanger[M].MA Chang-wen,JU Zi-quan,XIAO Hong-cai,translanted.Beijin:Science Press,1986.
[5]刘敏珊,杨帆,董其伍,等.流体横掠管束模拟中壁面函数影响研究[J].热能动力工程,2010,25(5):497—500.LIU Min-shan,YANG Fan,DONG Qi-Wu,et al.Study of the Influence of Wall Surface Functions in Simulating a Fluid Laterally Sweeping a Tube Bundle[J].Journal of Engineering for Thermal Energy&Power,2010 25(5):497—500.
[6]CHUCHILL S W,BERNSTEIN M.A Correlating Equation for Forced Convection from Gases and Liquids to a Circular Cylinder in Cross Flow[J].ASME J Heat Transfer,1997,99(1):300—306.
[7]SATORU I,KATSUHIDE E.Development of High Thermal Efficiency Impinging Jet Nozzle for Hot Air Drying of Gravure Printing[J].Journal of Chemical Engineering of Japan,1998,6(21):569—575.
[8]金琳.基于测试评价的凹印刷机烘干系统创新设计方法研究[D].北京:北京印刷学院,2015.JIN Lin.Research on Innovative Design Method of Drying System of Gravure Press Based on Test Evaluation[D].Beijing:Beijing Institute of Graphic Communication,2012.
[9]金琳,李艳,王仪明,等.基于传热介质的蒸汽加热凹印机能耗测试方法研究[J].包装工程,2015,36(5):105—111.JIN Lin,LI Yan,WANG Yi-Ming,et al.Energy Consumption Test Method for Steam Heating Gravure Based on Heat Transfer Medium[J].Packaging Engineering,2015,36(5):105—111.
[10]张有为,李辉,姜培学.采用共轭梯度法的管内壁温度导热反问题求解[J].工程热物理学报,2009,30(7):1188—1190.ZHANG You-wei,LI Hui,JIANG Pei-xue.Inverse Heat Conduction Problem of Deducing Inner Wall Temperature by Using Conjugate Gradient Method[J].Journal of Engineering Thermophysics,2009,30(7):1188—1190.
[11]任洪娟.螺旋翅片管自然对流换热实验研究[D].济南:山东大学,2002.REN Hong-Juan.Experiment Study on Natural Convection Heat Transfer of Spiral Finned Tubes[D].Shangdong:Shangdong University,2002.
[12]张肖.基于TRIZ的印刷机械创新设计方案评价体系研究[D].北京:北京印刷学院,2012.ZHANG Xiao.Research on Innovative Design Evaluation System of Printing Machinery Based on TRIZ[D].Beijing:Beijing Institute of Graphic Communication,2012.
[13]李艳.基于TRIZ的印刷机械创新设计理论和方法[M].北京:机械工业出版社,2014.LI Yan.Theory and Method of Innovation Design of Printing Machinery Based on TRIZ[M].Beijin:China Machine Press,2014.
[14]徐共荣.红外低发射率涂料的研制及其在涤/棉混纺织物热红外伪装的应用[D].杭州:浙江理工大学,2013.XU Gong-rong.Preparation of Low Infrared Emissivity Coating and its Application in Cotton/Polyester Blended Fabrics of Thermal Infrared Camouflage[D].Hangzhou:Zhejiang Sci-Tech University,2013.
[15]杨建武,黄克坚.Cu/Al复合翅片管生产工艺的研究[J].南昌大学学报,2001,23(2):72—77.YANG Jian-wu,HUANG Ke-jian.The Production Process Study of Cu/Al Multiunit Fin Tube[J].Journal of Nanchang University,2001,23(2):72—77.