加压流化床冷态模拟初探（Ⅰ）─压力及内部构件对细颗粒物料初始流化状况的影响

摘要本实验初步探讨了压力状况下（０．５～２．５ＭＰａ）细颗粒的流化特性，对众多流化床设计的基本参数进行了测定。本文着重讨论压力和内部构件两因素对初始流化状况的影响并用Ｅｒｇｕｎ方程进行理论分析和计算。结果发现与实验现象相符较好，进一步说明Ｅｒｇｕｎ方程在加压情况下的适用性。

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	曹晏
	邓金明
	赵连仲

关键词：加压流化床初始流化状况内部构件

Abstract： Experiments were carried out under pressure( 0.5～2.5MPa) with three kinds of fine particles(Fcc, glass bead, sand) in a fluidized bed φ98mm and 2000mm long. Several parameters with regard to the design of pressurized fluidized bed reactors were investigated. This paper emphasizes on the effects of pressure and of three kinds of internals especially the vertical type on the incipient fluidized state. At the same time, Ergun equation is used to analyze theoretically the experimental phenomena and calculate the minimum fluidization velocity. It is noted that experimental results are in good accordance with what predicted from the Ergun equation.

Keywords： s: pressurized fluidrized bed incipient fluidized state; internals

Received 1995-10-15;

引用本文:

曹晏，邓金明，赵连仲.加压流化床冷态模拟初探（Ⅰ）─压力及内部构件对细颗粒物料初始流化状况的影响[J]. 化学工业与工程, 1995,12(4): 8-15

Cao Yan; Deng Jinming; Zhao Lianzhong.A Primary Study of the Modelling of Pressurized Fluidized Bed(Ⅰ)──The Effect of Pressure and Internals on Incipient Fluidized State of Fine Particles[J]. Chemcial Industry and Engineering, 1995,12(4): 8-15