流化床颗粒冷却器实验平台设计-（毕业论文设计）.doc

PAGE \* MERGEFORMAT2 PAGE \* MERGEFORMAT PAGE \* MERGEFORMAT 1 摘要 工业生产颗粒产品时常常伴随冷却降温问题,例如颗粒肥料和聚酯切片的冷却等。处理这样的问题的常用方法是利用固体颗粒流态化原理，通过风冷、增设换热构件等对固体颗粒进行冷却。 本次设计的是一个实验平台，通过实验平台测得的实验数据来研究流化床颗粒冷却器中不同换热构件的传热系数。实验平台主要包括流化床﹑换热构件﹑旋风分离器、动力设备、加料设备。换热构件有蛇形、列管式、鼠笼式三种型式。 关键词：颗粒冷却；流化床；换热构件；传热系数；旋风分离器 ABSTRACT Industrial production of granular products often accompany cooling problems, such as granular fertilizer and polyester chip cooling, etc. The commonly used method to cope with this problem is to use solid particle fluidization principle, through the air cooling system, adding heat exchange component to cool the solid particles. This design is a experimental platform, base on the experimental data measuring in experiment platform to study the particles fluidized bed cooler in different heat transfer coefficient of heat transfer components. Experimental platform mainly includes the fluidized bed, heat transfer components, cyclone separator, power equipment, feeding equipment. Heat transfer components comprise serpentine tube bending, shell and tube type, squirrel cage three kind of type. Keywords: Particle cooling; Fluidized bed; Heat transfer component; Heat transfer coefficient; Cyclone separator 目 录 摘要TOC \o 1-3 \h \u HYPERLINK \l _Toc8674 PAGEREF _Toc8674 I HYPERLINK \l _Toc1436 ABSTRACT PAGEREF _Toc1436 II HYPERLINK \l _Toc7468 第一章 绪论 PAGEREF _Toc7468 1 HYPERLINK \l _Toc13677 1.1流态化冷却技术发展简介 PAGEREF _Toc13677 1 HYPERLINK \l _Toc6732 1.1.1流态化技术发展简介 PAGEREF _Toc6732 1 HYPERLINK \l _Toc17276 1.1.2流态化冷却技术 PAGEREF _Toc17276 3 HYPERLINK \l _Toc24178 1.2颗粒流化床形成 PAGEREF _Toc24178 3 HYPERLINK \l _Toc12341 1.2.1流化过程 PAGEREF _Toc12341 3 HYPERLINK \l _Toc24685 1.2.2流态化的实现要素和特点 PAGEREF _Toc24685 4 HYPERLINK \l _Toc30445 1.2.3流化床冷却器基本构造 PAGEREF _Toc30445 6 HYPERLINK \l _Toc14048 1.3流化床的主要优缺点 PAGEREF _Toc14048 9 HYPERLINK \l _Toc16862 1.3.1流化床的优点 PAGEREF _Toc16862 9 HYPERLINK \l _Toc213 1.3.2流化床的缺点 PAGEREF _Toc213 10 HYPERLINK \l _Toc89