横向间距和截面形状对汽轮机切向进气蜗壳气动性能的影响

薛文松 1; 李军 1; 陈阳 2; 白昆仑 2; 田朝阳 2

doi:10.7652/xjtuxb202007012

您当前的位置：

首页 >

文章列表页 >

横向间距和截面形状对汽轮机切向进气蜗壳气动性能的影响

更新时间：2025-07-09

- 横向间距和截面形状对汽轮机切向进气蜗壳气动性能的影响
- Effects of Transverse Distance and Cross Section Shape on Aerodynamic Performance of Tangential Admission Volute of Steam Turbine
- 西安交通大学学报 2020年54卷第7期页码：94-103+128
- 作者机构：
  
  西安交通大学叶轮机械研究所,西安,710049
- 作者简介：
- 基金信息：
  
  : 2020-01-06。作者简介: 薛文松(1994—),男,硕士生;李军(通信作者),男,教授,博士生导师。基金项目: 国家自然科学基金资助项目(51776151)
- DOI：10.7652/xjtuxb202007012
  中图分类号： TK269
- 网络首发：2020-07-10，
  
  纸质出版：2020
- 稿件说明：
移动端阅览
薛文松 1, 李军 1, 陈阳 2, 等. 横向间距和截面形状对汽轮机切向进气蜗壳气动性能的影响[J]. 西安交通大学学报, 2020,54(7):94-103+128.

Effects of Transverse Distance and Cross Section Shape on Aerodynamic Performance of Tangential Admission Volute of Steam Turbine[J]. 2020, 54(7): 94-103+128.
薛文松 1, 李军 1, 陈阳 2, 等. 横向间距和截面形状对汽轮机切向进气蜗壳气动性能的影响[J]. 西安交通大学学报, 2020,54(7):94-103+128. DOI： 10.7652/xjtuxb202007012.

Effects of Transverse Distance and Cross Section Shape on Aerodynamic Performance of Tangential Admission Volute of Steam Turbine[J]. 2020, 54(7): 94-103+128. DOI： 10.7652/xjtuxb202007012.

摘要

为了降低蜗壳总压损失并提高出口气流均匀性

对影响切向进汽蜗壳的气动特性和流场形态的因素进行了研究。采用数值方法求解了三维RANS方程和SST湍流模型

分析了横向间距和截面形状对汽轮机切向进气蜗壳气动性能的影响。数值模拟得到的部分切向进气蜗壳的质量流量和出口马赫数与实验测量数据一致

验证了数值方法的可靠性。对比分析了不同进口总压下5种切向进气蜗壳耦合静叶结构的气动性能参数和流场型态

结果表明:5种进气蜗壳耦合静叶结构的出口气流角基本不随进气总压的增加而改变; 5种进气蜗壳耦合静叶结构的总压损失系数和质量流量会随着进气总压的增加而增加; 进气蜗壳出口气流角随着横向间距的增加而增加

圆特征截面进气蜗壳出口气流角大于类多边形特征截面进气蜗壳的; 随着横向间距的增加

5种进气蜗壳耦合静叶结构的蜗壳总压损失系数增加

静叶总压损失系数减小

进气蜗壳耦合静叶结构的总压损失系数先减小后增加; 进气蜗壳截面形状对总压损失系数的影响明显大于横向间距的

类多边形特征截面蜗壳的总压损失系数明显大于圆特征截面蜗壳的; 静叶出口气流角几乎不受横向间距和特征截面的影响; 圆特征截面切向进气蜗壳耦合静叶结构具有最低的总压损失系数

圆特征截面完全切向进气蜗壳耦合静叶结构在蜗壳出口具有最佳的出口气流角周向分布均匀性。

Abstract

To reduce the total pressure loss of the tangential admission volute and improve the uniformity of outlet air flow

the factors affecting the aerodynamic characteristics and flow field of the tangential admission volute are investigated. The effects of transverse distance and cross section shape on the aerodynamic performance of the tangential admission volute of steam turbine are numerically evaluated with the three-dimensional RANS equations and SST turbulence model. The obtained numerical mass flow rate and outlet Mach number of the partial alignment tangential admission volute coincide well with the experimental data to verify the accuracy of the numerical approach. The flow fields and aerodynamic parameters of five kinds of tangential admission volutes coupled with stationary vanes are compared and discussed under different inlet total pressure conditions. The results show that the outlet flow angles of five kinds of tangential admission volutes with stationary vanes almost remain

关键词

Keywords

references

DENTON J D. The 1993 IGTI scholar lecture: loss mechanisms in turbomachines [J]. Journal of Turbomachinery, 1993, 115(4): 621-656.

JI C. Advances in steam path technology [J]. ASME Journal of Engineering for Gas Turbines and Power, 1996, 118(2): 337-352.

WALLIS A M, DENTON J D, DEMARGNE A A J. The control of shroud leakage flows to reduce aerodynamic losses in a low aspect ratio, shrouded axial flow turbine [C]∥Proceedings of ASME Conference on ASME Turbo Expo 2000: Power for Land, Sea, and Air. New York, USA: ASME, 2000: V001T03A 046.

GIER J, STUBERT B, BROUILLET B, et al. Interaction of shroud leakage flow and main flow in a three-stage LP turbine [C]∥Proceedings of ASME Conference on ASME Turbo Expo 2003: Collocated with the 2003 International Joint Power Generation Conference. New York, USA: ASME, 2009: 105-116.

IDELCHIK I E. Handbook of hydraulic resistance [M]. Washington DC, USA: Hemisphere Publishing Corporation, 1986: 662.

ENGELMANN D, KALKKUHL T J, POLKLAS T, et al. Influence of shroud cavity jet and steam admission through a circumferential slot on the flow field in a steam turbine [C]∥Proceedings of ASME Conference on ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. New York, USA: ASME, 2013: 433-442.

ENGELMANN D, SCHRAMM A, POLKLAS T, et al. Enhanced loss prediction for admission through circumferential slots in axial steam turbines [C]∥Proceedings of the 10th European Turbomachinery Conference. Lappeenranta, Finland: Lappeenranta University of Technology, 2013: 350-359.

ENGELMANN D, SCHRAMM A, POLKLAS T, et al. Losses of steam admission in industrial steam turbines depending on geometrical parameters [C]∥Proceedings of ASME Conference on ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. New York, USA: ASME, 2014: V01BT27A003.

NETTIS L, IMPARATO E, COSI L. Optimization of a large injection system for steam turbines [C]∥Proceedings of ASME Conference on ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. New York, USA: ASME, 2015: V008T26A024.

HECKER S, ROHE A, STOFF H. Steam turbine inlet geometry from a structural and fluid dynamics point of view [C]∥Proceedings of ASME Conference on ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. New York, USA: ASME, 2013: 487-495.

SCHRAMM A, MüLLER T, POLKLAS T, et al. Improvement of flow conditions for the stages subsequent to extraction modules in industrial steam turbines [C]∥Proceedings of ASME Conference on ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. New York, USA: ASME, 2014: V01BT27A008.

PAZZI S, MICHELASSI V. Analysis and design outlines of centrifugal compressor inlet volutes [C]∥Proceedings of ASME Conference on ASME Turbo Expo 2000: Power for Land, Sea, and Air. New York, USA: ASME, 2014: V001T03A037.

张怀宇, 王晨瑜, 谢雷, 等. 大型汽轮机宽负荷运行时进汽部分性能对比分析 [J]. 汽轮机技术, 2016, 58(6): 459-460.

ZHANG Huaiyu, WANG Chenyu, XIE Lei, et al. Analysis on aerodynamic performances of inlet structure at a wide load range condition for large steam turbine [J]. Turbine Technology, 2016, 58(6): 459-460.

姚宏, 周逊, 王仲奇. 工业汽轮机补汽结构对压力损失的影响及优化 [J]. 西安交通大学学报, 2016, 50(7): 18-25.

YAO Hong, ZHOU Xun, WANG Zhongqi. Optimization design and pressure losses of steam admission in industrial steam turbines depending on geometrical parameters [J]. Journal of Xi’an Jiaotong University, 2016, 50(7): 18-25.

王健, 刘云锋, 马天吟. 两种进汽结构气动性能的数值研究 [J]. 汽轮机技术, 2016, 58(2): 93-94.

WANG Jian, LIU Yunfeng, MA Tianyin. Numerical investigation on aerodynamics performance between two different inlet structures [J]. Turbine Technology, 2016, 58(2): 93-94.

钟主海, 江生科. 汽轮机高压缸进汽蜗壳的数值研究 [J]. 东方汽轮机, 2016(2): 17-22.

ZHONG Zhuhai, JIANG Shengke. Numerical investigation on steam admission volute of turbine high pressure cylinder [J]. Dongfang Turbine, 2016(2): 17-22.

邵卫东, 吴方松, 李伯武, 等. 汽轮机低压进汽结构气动性能分析与优化设计 [J]. 热力透平, 2017, 46(2): 69-75.

SHAO Weidong, WU Fangsong, LI Bowu, et al. Optimization design and analysis of steam admission in low pressure cylinder of steam turbines [J]. Thermal Turbine, 2017, 46(2): 69-75.

KANG S Y, LEE J J, KIM T S, et al. Numerical analysis on the impact of inter-stage flow addition in a high-pressure steam turbine [C]∥Proceedings of 2017 ASME Fluids Engineering Division Summer Meeting. New York, USA: ASME, 2017: V01AT03A029.

潘阳, 袁奇, 朱光宇. 进汽结构对部分进汽损失的影响研究 [J]. 中国电机工程学报, 2018, 38(14): 4156-4164, 4321.

PAN Yang, YUAN Qi, ZHU Guangyu. Numerical investigation on the influence of inlet structure on partial-admission losses [J]. Proceedings of the CSEE, 2018, 38(14): 4156-4164, 4321.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

汽轮机切向进气蜗壳气动性能研究

非轴对称端壁透平级气动性能的数值研究

蜂窝叶顶密封对透平级气动性能的影响研究

仿鸮翼的三维仿生翼型叶片气动特性研究

内凹式蜗舌对多翼离心风机气动性能和噪声影响的研究