论文总字数：29874字

摘 要

固液气三相流化床反应器大量应用于能源行业、化工行业、冶金行业、轻工行业、材料行业、食品行业、医药行业和环保行业等方面，具备很好的导热性、混合性、传质性等优点。不过我在整理前人资料时发现，三相流化床的报告比较少，而二相流化床的比较多。流化床内颗粒相的多态性、非线性和非均匀性，还依赖于经验或半经验公式，因此工程与理论上对于这些方面的研究仍然非常积极。

本文创造性地设计流化床反应器作为处理高浓度工业有机废水的小试装置中的主反应器，应用到流体力学、化工原理、过程设备设计和热工水力计算等多学科的理论知识，来构建反应器设备主体尺寸。SW6-2011过程设备强度计算软件对设备的主要结构参数进行强度校核，FLUENT数值模拟软件对流化床反应器的两相流场特性进行数值仿真模拟，通过理论方法和设计分析软件得到适用于处理高浓度有机废水的小试流化床反应器，为装置的进一步放大奠定理论和模拟实验的基础，同时也可以验证水力计算与软件，也可为工业化装置的应用积累经验。

关键词：流化床反应器；SW6计算软件；数值分析；气固两相流

ABSTRACT

Solid-liquid-gas fluid bed reactor has an excellent merit of mixing,transferring heat and materials.It has been largely used in many field, such as,energy,chemical industry,materials,metallurgy industry,medicine,grocery and environment protection. Nowdays,the research solid-liquid-gas fluid bed reactor of two-phase is relatively systematic and in deep.however,on the other hand,the investigation on of deeper research of solid-liquid-gas fluid bed reactor is comparatively less.Whats more, due to the non-liner of the fluid system,the inhomogeneity of the structure and the three-phase fluidized bed less. There is no theoretical system of flow properties of a complete description of the fluidized bed, the engineering and theoretical research in this field is still very active.

Fluid bed reactor was chosen as the main reactor in this paper creatively for treatment of high concentration organic industrial wastewater.Fluid bed reactor is widely used in fluid mechanics, chemical principle, theoretical knowledge of process equipment design and calculation of thermal hydraulic and other disciplines designed reactor main dimensions.SW6-2011 which is one of the useful software for process equipment strength of main structure parameters.By FLUENT simulation analysis of two-phase flow field simulation of fluid bed reactor numerical was obtained.The fluid bed reactor was available for the treatment of high concentration organic wastewater by theoretical method and design analysis software, the high concentration treated waste Water meets the emission standards, as well as verification of hydraulic calculations and software, as well as experience in the use of industrial installations.

KEYWORDS: Fluid bed reactor; SW6 calculation software; Numerical analysis; Gas-solid two-phase flow

目 录

摘 要 I

ABSTRACT I

目 录 I

第一章 绪论 1

1.1 课题背景及意义 1

1.2 流化床反应器国内外研究现状和发展情况 3

1.3 流化床反应器的基本结构和工作原理 4

1.4 论文的主要研究内容 5

第二章 CWAO处理聚丙烯腈废水的的物性参数及工艺简介 6

2.1 CWAO处理聚丙烯腈废水的的物性参数简介 6

2.2 CWAO处理聚丙烯腈废水的工艺简介 8

2.2.1 采用湿式氧化技术背景 8

2.2.2 CWAO反应工艺原理 9

2.2.3 CWAO反应主要工艺参数 9

2.2.4 CWAO反应主要工艺流程简介 11

2.3本章小结 11

第三章 设备的关键尺寸设计和强度计算 13

3.1 流化床反应器各主要结构的材料选择 13

3.2 流化床反应器各部分结构的选择 13

3.3 焊接接头及焊材的选取 15

3.4 SW6计算书（见附录） 15

3.5 主要结构参数的汇总 15

3.6 本章小结 15

第四章 流化床反应器气固两相流场的数值模拟 16

4.1 流化床反应器计算方法与气固两相模型 16

4.1.1 计算流体力学计算方法 16

4.1.2 网格划分 18

4.1.3 FLUENT数值模拟过程 18

4.2 两相流场的固相体积分数 19

4.3 固相颗粒速度分布分析 21

4.4 混合相压力分布分析 23

4.5 本章小结 24

第五章 结论与展望 25

参考文献 26

附录 29

致 谢 49

第一章 绪论

1.1 课题背景及意义

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