LS-2型聚光太阳能热解装置的研究与设计+CAD图纸
毕业论文关键词：聚光太阳能；热解装置；螺旋输送器；结构设计；热力学计算
Design for Pyrolysis Device with Solar Concentrator Abstract: The energy for pyrolysis of materials, can be provided by solar concentrator. It can not only save energy, but also make solar energy more useful. Pyrolysis device mainly consists of concentrating heat collection system and a unique screw conveyor with variable pitch. To solar concentrator system, we use LS-2 parabolic trough concentrating heat collection system, solar trajectory single axis tracking; Unique screw conveyor with variable pitch is installed in the inner tube of collecting tube and its spinning is powered by AC Deceleration asynchronous motor. Solid product in pyrolysis is collected in carbon box, after cooling by secondary condenser, liquid product is collected in tar collecting bottle, while gas product, which cannot be cooled into liquid, is discharged from the system directly.
Keywords: Solar Concentrator; Pyrolysis Device; Screw Conveyor; Structure Design; Thermodynamic Calculation
目 录
1 绪论 ... 1
1.2 抛物面槽式太阳能聚光集热技术 . 4
2 太阳能聚光器及热解装置的确定与设计 ... 7
2.1 LS - 2聚光器的结构特征 .... 7
2.1.1 聚光镜结构 .... 8
2.1.2 跟踪装置的原理与设计 .... 9
2.1.3 集热管 10
2.2 特殊螺旋输送装置 ... 11
2.2.1 静态受力分析 ... 12
2.2.2 运动分析 . 13
2.3 螺旋输送器变螺距设计 14
2.3.1 螺旋外径的确定 .... 16
2.3.2 螺旋轴径的确定 .... 16
2.3.3 螺距的确定 .. 16
2.3.4 变螺距螺旋输送器整体设计 .... 16
2.4 其他装置的选择 .. 17
2.4.1 电机选择 . 17
2.4.2 热解过程气体保护 17
2.5 计算总结 .... 17
3 聚光太阳能热解装置理论热力学计算 21
3.1 原料及装置的理论检验方法 .. 21
3.1.1 原料及其基本特性 21
3.1.2 装置理论检验方法 21
3.2 装置检验的理论热力学计算 .. 21
3.2.1 热解过程能量平衡计算 .. 21
3.2.2 集热管有效热计算 22
3.2.3 集热管热损失计算 22
3.2.4 集热管的储热计算 25
3.2.5 热解过程所需总热量的计算 .... 25
3.2.6 热解时间计算 ... 26
3.2.7 集热器热效率计算 26
3.2.8 加热装置有效热计算 . 27
4 结论 . 28