扬克烘缸的设计与传热特性分析-动力工程及工程热物理专业论文.docx

缸的总传热系数，可以预测新型扬克烘缸传热性能优于普通扬克烘缸。 本文通过对新型扬克烘缸进行结构设计与有限元分析，以及对其传热特性的数值模拟，最终设计出了具有较高传热速率与干燥速率的新型扬克烘 缸。有限元分析结果表明其结构设计合理，传热特性的数值模拟结果表明其传热性能优于普通扬克烘缸。关键词：扬克烘缸，多通道烘缸，结构设计，传热特性，数值模拟II万方数据Design and Analysis on Heat Transfer Characteristics of Yankee DryerABSTRACTCurrently,resource shortage and environmental pollution are restricting the development of China’S paper industry．Besides，papermaking equipment in China are antiquated，and large essential equipment mainly rely on the import． Therefore，reducing the energy consumption of paper industry,improving capacity for independent innovation，promoting the level of papermakingequipment are urgently required．The key of energy saving in papermakingequipment is drying section．As the critical part of drying section，cylinder dryer has been the research hotspots．A lot of work have been made to reduce energyconsumption and improve the efficiency by researchers botll at home and abroad． The energy-saving and efficient multiport cylinder dryer has attracted lots ofattention in recent years．Yankee dryer is the core part of tissue paper machinewhich is mainly relied on import．The research subject of this paper is Yankeedryer,the research results of multiport cylinder dryer are applied to the structure design and optimization of the Yankee dryer,and design a novel Yankee dryer with high heat-transfer and high drying efficiency,in order to achieve the purpose of energy saving，and change the situation that large Yankee dryer inChina mainly rely on import．The main work ofthis dissertation axe as follows：(1)The research status of the multiport cylinder dryer and Yankee dryer were reviewed，and made a special effort to analyze the structure of Yankee dryers manufactured by ANDRITZ and TOSCOTEC，providing theoretical basis to the structure‘design and optimization of the Yankee dryer．(2)The novel Yankee dryer was proposed according to design concept of multiport cylinder dryer,which consists of inner shell，outer shell，head of dryer, metal tube re