带径向进气腔室的轴流透平导叶周向非均匀分布研究

doi:10.19799/j.cnki.2095-4239.2024.0606

储能科学与技术 ›› 2025, Vol. 14 ›› Issue (1): 203-218.doi: 10.19799/j.cnki.2095-4239.2024.0606

带径向进气腔室的轴流透平导叶周向非均匀分布研究

许彬¹^,²^,³(), 朱阳历¹^,²^,⁴(), 王星¹^,², 熊军¹^,⁵, 潘现超¹^,²^,³, 徐玉杰¹^,², 陈海生¹^,²^,³

^1.中国科学院工程热物理研究所，北京 100190
^2.中国科学院大学，北京 100049
^3.中科南京未来能源系统研究院，江苏南京 211135
^4.毕节高新技术产业开发区国家能源大规模物理储能技术研发中心，贵州毕节 551712
^5.江苏大学能源与动力工程学院，江苏镇江 212013

收稿日期:2024-07-03 修回日期:2024-08-08 出版日期:2025-01-28 发布日期:2025-02-25
通讯作者: 朱阳历 E-mail:xubin22@mails.ucas.ac.cn;zhuyangli@iet.cn
作者简介:许彬（1998—），男，硕士研究生，主要研究方向为涡轮入口导叶，E-mail：xubin22@mails.ucas.ac.cn；
基金资助:
国家科技重大专项（J2019-Ⅱ-0008-0028）;山东能源研究院企业联合基金项目(SEI U202301)

Research on circumferential nonuniform distribution of axial turbine guide vanes with radial chamber

Bin XU¹^,²^,³(), Yangli ZHU¹^,²^,⁴(), Xing WANG¹^,², Jun XIONG¹^,⁵, Xianchao PAN¹^,²^,³, Yujie XU¹^,², Haisheng CHEN¹^,²^,³

^1.Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
^2.University of Chinese, Academy of Sciences, Beijing 100049, China
^3.Nanjing Institute of Future Energy System, Nanjing 211135, Jiangsu, China
^4.National Energy Large Scale Physical Energy Storage Technologies R&D Center of Bijie High-tech Industrial Development Zone, Bijie 551712, Guizhou, China
^5.School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China

Received:2024-07-03 Revised:2024-08-08 Online:2025-01-28 Published:2025-02-25
Contact: Yangli ZHU E-mail:xubin22@mails.ucas.ac.cn;zhuyangli@iet.cn

摘要/Abstract

摘要：

压缩空气储能系统透平径向进气腔室结构的存在会造成透平入口进气周向不均匀，导致透平性能下降。因此对压缩空气储能系统耦合径向进气腔室的单级轴流透平进行数值模拟，探究了导叶周向非均匀分布对透平等熵效率及其内部流场的影响机理。以拉丁超立方采样方法获得大量样本方案，通过参数化处理及软件交互实现三维模型、网格的动态更新及模拟，实现采用正弦调制函数周向布置的非均匀导叶全过程自动化模拟。结果表明，导叶周向非均匀度小于10%时，透平等熵效率、膨胀比及质量流量等总体性能参数与初始均匀分布方案相比变化小于0.1%；导叶周向非均匀度超过15%时，会对透平内部流场产生明显的负面影响，造成导叶段压损增大，透平总体膨胀比下降，质量流量增大，等熵效率呈下降趋势，最高下降约1%。

关键词: 压缩空气储能, 轴流透平, 径向进气腔室, 非均匀导叶, 自动化模拟

Abstract:

The radial chamber structure of a turbine in a compressed air energy storage (CAES) system leads to circumferential nonuniformity of the airflow at the guide vane inlet, resulting in the degradation of turbine performance. This paper presents a numerical simulation of a single-stage axial turbine coupled with a radial inlet chamber in a CAES system and examines the impact mechanism of the nonuniform distribution of the guide vane circumferential direction on the turbine efficiency and its internal flow field. A large number of sampling schemes are obtained by the Latin hypercube sampling method, while dynamic updating and simulation of the 3D model and mesh are achieved by parametric processing and software interaction, facilitating the automated simulation of the entire process when the nonuniform guide vane is circumferentially arranged by the sinusoidal modulation function. The results indicated that when the difference between the circumferential angle of the adjacent guide vanes and the uniform distribution angle is less than 10%, the overall performance parameters, such as turbine isentropic efficiency, expansion ratio, and mass flow rate, vary by less than 0.1% compared with the initial uniform distribution scheme. If the difference between the circumferential angle of the adjacent guide vanes and the uniform distribution angle exceeds 15%, it will have an obvious negative impact on the internal flow field of the turbine. This discrepancy will lead to an increased pressure loss of the guide vane section, a decrease in the expansion ratio, an increase in the mass flow rate, and a downward trend in the isentropic efficiency, with a maximum decrease of about 1%.

Key words: compressed air energy storage, axial turbine, radial chamber, uneven inlet guide vane, automated simulation

中图分类号:

TH 45

许彬, 朱阳历, 王星, 熊军, 潘现超, 徐玉杰, 陈海生. 带径向进气腔室的轴流透平导叶周向非均匀分布研究[J]. 储能科学与技术, 2025, 14(1): 203-218.

Bin XU, Yangli ZHU, Xing WANG, Jun XIONG, Xianchao PAN, Yujie XU, Haisheng CHEN. Research on circumferential nonuniform distribution of axial turbine guide vanes with radial chamber[J]. Energy Storage Science and Technology, 2025, 14(1): 203-218.

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设计参数	数值
导叶	26
动叶	44
转速n/(r/min)	17000
质量流量m/(kg/s)	34.5
转子叶顶间隙/mm	0.5

位置	参数	数值
入口	总压p^*_in/kPa	2665
	总温T^*_in/K	366
	湍流度	5%
出口	静压p_out/kPa	904
壁面	无滑移条件、绝热	—

气动参数	实验	数值模拟	相对误差
出口总压p^*_out/kPa	979.55	974.96	0.04%
出口总温T^*_out/K	285.47	283.91	0.50%
等熵效率η_tt/%	85.59	88.85	3.26%

气动参数	带进气腔室轴流透平	不带进气腔室轴流透平
入口总压p^*_in/kPa	2665	2645
入口总温T^*_in/K	366	366
总膨胀比π_tt	2.73	2.73
等熵效率η_tt/%	88.85	89.74

参数	C1	C2	C3
A/(°)	—	0.18	4.30
σ/%	—	1.30	31.06
i	—	1	1
φ/(°)	—	64.80	40.10
等熵效率η_tt/%	88.85	88.91(0.06↑)	87.90(0.95↓)
总膨胀比π_tt	2.73	2.73	2.71
质量流量m/(kg/s)	34.53	34.55	35.17

带径向进气腔室的轴流透平导叶周向非均匀分布研究

Research on circumferential nonuniform distribution of axial turbine guide vanes with radial chamber

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