汽轮机课程设计
指导老师：学生姓名：学号：专业：班级：日期：
能源与动力工程
目录
目录.....................................................................................................................................................2课程设计任务.....................................................................................................................................4第一章汽轮机热力计算.................................................................................................................5
1.汽轮机基本参数和结构的选择...........................................................................................5
1.1机组基本参数的确定.................................................................................................51.2汽轮机基本结构形式的选择.....................................................................................62.近似热力过程线的拟定.......................................................................................................6
2.1损失的估计.............................................................................................................62.2非再热过程热力线的拟定....................................................................................6
第二章抽汽回热系统热平衡初步计算..........................................................................................9
1.汽轮机进汽量估算................................................................................................................92.抽汽回热系统热平衡初步计算...........................................................................................9
2.1给水温度的选取..........................................................................................................92.2回热抽汽级数的选择.................................................................................................92.3除氧器的工作压力...................................................................................................102.4回热系统图的拟定...................................................................................................102.5各加热器汽水参数计算...........................................................................................102.6各加热器回热抽汽量计算.......................................................................................12
第三章汽轮机漏汽量的计算........................................................................................................14
1.阀杆漏气量的计算................................................................................................................14
1.1主汽阀阀杆漏汽量的计算.......................................................................................141.2调节阀阀杆漏汽量的计算.......................................................................................152.轴封漏汽量的计算.............................................................................................................15
2.1前轴封漏气量计算...................................................................................................152.2后轴封漏汽...............................................................................................................17
第四章调节级的选型及热力计算................................................................................................19
1.调节级选型..........................................................................................................................192.调节级热力参数的选择.....................................................................................................193、调节级几何参数的选择....................................................................................................194.调节级详细计算..................................................................................................................20
4.1第一列喷嘴热力计算...............................................................................................204.2.动叶部分计算..........................................................................................................224.3导叶热力计算：.......................................................................................................234.4第二列动叶热力计算................................................................................................24
第五章压力级的计算.....................................................................................................................26
1.各级平均直径的确定.........................................................................................................262.级数的确定及比焓降的分配.............................................................................................26第六章整机校核及计算结果的汇总............................................................................................28
1整机校核................................................................................................................................28
2.级内功率：..........................................................................................................................28第七章总结.....................................................................................................................................29参考文献...........................................................................................................................................29附录...................................................................................................................................................30