毕业论文-异型竖板式降膜蒸发器的设计_精品.doc

天 津 理 工 大 学 本科毕业设计 题目：异型竖板式降膜蒸发器的设计 学生姓名 届 2011 学院 机械工程学院 专业 过程装备与控制工程 指导教师 职称 讲师 下达任务日期 2010年11月10日 异型竖板式降膜蒸发器的设计 摘 要 我国是世界上生产乳类产品的大国，特别是奶粉产品的加工生产在我国的食品加工行业内具有重要地位。因此，为了创造更高的商品价值和生产效率，我国的食品机械设计人员不断实现加工设备的技术创新与改进。近年来，降膜式异形竖板蒸发器脱颖而出，在奶粉加工设备的浓缩环节被广泛使用，并且获得好评。降膜式异形竖板蒸发器是根据薄膜传热理论和板式换热器原理发展起来的一种高效，节能、新型蒸发设备,它与管式降膜蒸发器相比，具有传热效率高传热效率高、物料受热时间短、挂料量少、不易结垢且结垢易清洗等诸多优点。但是，由降膜式异形竖板蒸发器为浓缩设备的全套奶粉生产设备的设计及其规范仍处初步发展阶段，尚待研究与发展。本文核心以降膜式异型竖板蒸发器为浓缩设备的全套奶粉生产设备进行结构与选型设计。 关键词：异型竖板式 降膜 蒸发器 Design on Falling Film Evaporator in Irregular-shaped Riser ABSTRACT Our country is the world production of products of the big country, breast milk powder products processing and production, especially in the food processing industry in our country has the important position. Therefore, in order to create higher commodity value and the production efficiency, our countrys food machinery design personnel continuously realizes processing equipment of technology innovation and improvement. In recent years, falling film type abnormity vertical board evaporator stand out, milk powder processing equipment in the concentration of the link to be used extensively, and has won good comments. Falling film type abnormity vertical board evaporator is according to film heat transfer theory and plate heat exchanger principle developed a kind of high efficiency, energy saving, new evaporation equipment, it and tube type drop membrane evaporator, compared with heat transfer efficiency high heat transfer efficiency high, raw material is heated time is short, hang shoes few, is not easy to be scaling and scaling easy to clean, and many other advantages. But, by falling film type abnormity vertical board evaporator for the full set of the concentration equipment production equipment design and its milk powder criterion still preliminary stage of development, place is to research and development. This paper core to falling film type different vertical