燃气轮机带阀片引射混合器内流特性分析

doi:10.12096/j.2096-4528.pgt.21019

发电技术 ›› 2021, Vol. 42 ›› Issue (4): 431-436.DOI: 10.12096/j.2096-4528.pgt.21019

燃气轮机带阀片引射混合器内流特性分析

魏凯¹^,²(), 罗忠¹^,²^,³^,*(), 孙永航¹^,², 王宇¹^,²

¹ 东北大学机械工程与自动化学院, 辽宁省沈阳市 110819
² 东北大学佛山研究生院, 广东省佛山市 528312
³ 东北大学航空动力装备振动及控制教育部重点实验室, 辽宁省沈阳市 110819

收稿日期:2021-02-07 出版日期:2021-08-31 发布日期:2021-07-22
通讯作者: 罗忠
作者简介:魏凯(1998), 男, 硕士研究生, 研究方向为引射混合器优化设计及可调喷管灵敏度分析, 1095423999@qq.com
基金资助:
国家自然科学基金项目(11872148);国家自然科学基金项目(U1908217);广东省基础与应用基础研究基金联合基金项目(2020B1515120015)

Analysis of Internal Flow Characteristics of Gas Turbine Ejector Mixer with Valve Plate

Kai WEI¹^,²(), Zhong LUO¹^,²^,³^,*(), Yonghang SUN¹^,², Yu WANG¹^,²

¹ School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110819, Liaoning Province, China
² Foshan Graduate School of Northeastern University, Foshan 528312, Guangdong Province, China
³ Key Laboratory of Vibration and Control of Aero-Propulsion System (Ministry of Education), Northeastern University, Shenyang 110819, Liaoning Province, China

Received:2021-02-07 Published:2021-08-31 Online:2021-07-22
Contact: Zhong LUO
Supported by:
National Natural Science Foundation of China(11872148);National Natural Science Foundation of China(U1908217);Joint Foundation of Basic and Applied Basic Research of Guangdong Province(2020B1515120015)

摘要/Abstract

摘要：

引射混合器对燃气轮机的降温降噪具有决定性作用，与传统的引射混合器相比，带有阀片结构的引射混合器性能较好。为了充分探究其内流特性，进而为优化设计提供依据，在有无阀片的引射混合器构型下，基于计算流体动力学(computational fluid dynamics，CFD)数值模拟，对比分析了其引射比、出口平均温度、出口最高温度、出口平均速度等表征引射性能的参数；针对带有阀片的引射混合器，分析了不同阀片开度下的引射性能。结果表明：带有阀片结构的引射混合器的混合性能显著提高，在阀片开度为45°时，其引射性能最佳。

关键词: 燃气轮机, 引射混合器, 引射性能, 阀片开度

Abstract:

The ejector mixer plays a decisive role in the cooling and noise reduction of gas turbine. Compared with the traditional ejector mixer, the ejector mixer with valve plate structure has better performance. In order to fully explore its internal flow characteristics and provide a basis for optimal design, the computational fluid dynamics (CFD) numerical simulation was used to study the ejector configuration with or without valve plate. The ejector performance parameters such as ejector ratio, average outlet temperature, maximum temperature and average outlet velocity were compared and analyzed. The ejector performance with different valve openings was analyzed for the ejector mixer with valve plates. The results show that the mixing performance of the ejector mixer with valve plate structure is significantly improved. The ejection performance is the best when the valve opening is 45°.

Key words: gas turbine, ejector mixer, ejection performance, valve plate opening

中图分类号:

TK47

魏凯, 罗忠, 孙永航, 王宇. 燃气轮机带阀片引射混合器内流特性分析[J]. 发电技术, 2021, 42(4): 431-436.

Kai WEI, Zhong LUO, Yonghang SUN, Yu WANG. Analysis of Internal Flow Characteristics of Gas Turbine Ejector Mixer with Valve Plate[J]. Power Generation Technology, 2021, 42(4): 431-436.

图/表 13

图1 典型引射器工作原理

Fig.1 Operating principle of typical ejector

图2 传统引射混合器构型

Fig.2 Configuration of traditional ejector mixer

图3 带阀片引射混合器构型

Fig.3 Configuration of ejector mixer with valve plate

图4 引射混合器不同阀片开度

Fig.4 Different valve plate openings of ejector mixer

图5 球形加密区域

Fig.5 Spherical encryption region

图6 球形加密后网格示意图

Fig.6 Grid diagram after spherical encryption

图7 实验数据与CFD仿真结果对比

Fig.7 Comparison of experimental data and CFD simulation results

表1 引射混合器有无阀片性能对比

Tab. 1 Performance comparison of ejector mixers with and without valve plates

参数	无阀片	有阀片
引射比	2.66	8.38
出口最高温度/℃	605.00	559.29
出口平均温度/℃	321.52	292.74
出口平均速度/(m/s)	23.74	28.73

图8 有无阀片下对称面温度分布

Fig.8 Temperature distribution of symmetrical surface with and without valve plates

图9 阀片开度对引射比的影响

Fig.9 Influence of valve opening on ejection ratio

图10 阀门开度对出口平均温度的影响

Fig.10 Influence of valve opening on average outlet temperature

图11 阀门开度对出口平均速度的影响

Fig.11 Influence of valve opening on average outlet velocity

图12 阀门开度对出口最高温度的影响

Fig.12 Influence of valve opening on maximum outlet temperature

参考文献 17

1	阳仕柏, 刘艳明, 叶传新, 等. 船舶燃气轮机进气系统排气引射器流动机理数值研究[C]//2019全国工业流体力学会议论文集. 北京, 2019: 85-90.
	YANG S B, LIU Y M, YE C X. Numerical study on flow mechanism of exhaust ejector in marine gas turbine intake system[C]//2019 Proceedings of the National Conference on Industrial Fluid Dynamics. Beijing, 2019: 85-90.
2	张燚. 波瓣喷管引射机理及应用研究[D]. 哈尔滨: 哈尔滨工程大学, 2013.
	ZHANG Y. Research on the mechanism and application of lobed nozzle[D]. Harbin: Harbin Engineering University, 2013.
3	KEENAN J H , NEUMANN E P . A simple air ejector[J]. Journal of Applied Mechanics, 1942, 9 (2): 75- 81. DOI
4	KEENAN J H , NEUMANN E P , LUSTWERK F . An investigation of ejector design by analysis and experiment[J]. Journal of Applied Mechanics, 1950, 17, 299- 309. DOI
5	LIAO C , BEST F . Comprehensive gas ejector model[J]. Journal of Thermophysics and Heat Transfer, 2010, 24 (3): 516- 523. DOI
6	BOTTENHEIM D S, BIRK A M, POIRIER D J. Performance of a longitudinal circular-to-slot gas turbine exhaust duct with a 90 degree bent[C]//Proceedings of ASME Tubo Expo 2004: Power for Land, Sea, and Air. June 14-17, 2004, Vienna, Austria. 2004: 163-170.
7	MAQSOOD A, BIRK A M. Experimental and CFD study of exhaust ejectors with bent mixing tubes[C]//Proceedings of ASME Tubo Expo 2005: Power for Land, Sea, and Air. June 6-9, 2005, Reno, Nevada. 2005: 155-165.
8	KIM S , KWON S . Experimental determination of geometric parameters for an annular injection type supersonic ejector[J]. Journal of Fluids Engineering, 2006, 128 (6): 1164- 1171. DOI
9	OPGENORTH M J , SEDERSTROM D , MCDERMOTT W , et al. Maximizing pressure recovery using lobed nozzles in a supersonic ejector[J]. Applied Thermal Engineering, 2012, 37, 396- 402. DOI
10	NAMET-ALLAH A, BIRK A M. Experimental investigation of the effects of nozzle length on the performance of low mach number air-air ejector with entraining diffuser[C]//Proceedings of ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. June 3-7, 2013, San Antonio, Texas, USA. 2013: GT2013-94069.
11	潘丞雄, 张靖周, 单勇. 双级波瓣引射混合器的引射性能[J]. 航空动力学报, 2014, 29 (9): 2174- 2180.
	PAN C X , ZHANG J Z , SHAN Y . Pumping performance for double-stage lobe mixer/ejector[J]. Journal of Aerospace Power, 2014, 29 (9): 2174- 2180.
12	刘培启, 王海涛, 武锦涛, 等. 引射器关键结构参数优化设计及验证[J]. 大连理工大学学报, 2017, 57 (1): 29- 36.
	LIU P Q , WANG H T , WU J T , et al. Optimum design and verification of ejector's main structural parameters[J]. Journal of Dalian University of Technology, 2017, 57 (1): 29- 36.
13	叶宇琛. 直升机排气引射器配合角度对引射性能的影响[J]. 中国科技信息, 2020, (6): 24- 27.
	YE Y C . Influence of matching angle of helicopter exhaust ejector on ejector performance[J]. China Science and Technology Information, 2020, (6): 24- 27.
14	赵芳, 任泽斌, 王海锋, 等. 高温燃气引射系统对接试验验证[J]. 实验流体力学, 2020, 34 (3): 111- 116.
	ZHAO F , REN Z B , WANG H F , et al. Docking test verification of high temperature gas ejector system[J]. Journal of Experiments in Fluid Mechanics, 2020, 34 (3): 111- 116.
15	杨文军, 袁惠群, 赵天宇. 基于Kriging模型的数据拟合及多场耦合动力学特性分析[J]. 东北大学学报(自然科学版), 2016, 37 (6): 834- 838. DOI
	YANG W J , YUAN H Q , ZHAO T Y . Multi-field coupling dynamic characteristics and data fitting based on Kriging model[J]. Journal of Northeastern University (Natural Science), 2016, 37 (6): 834- 838. DOI
16	WU K , JIN Y , KIM H D . Hysteretic behaviors in counter-flow thrust vector control[J]. Journal of Aerospace Engineering, 2019, 32 (4): 04019041. DOI
17	IM J H , SONG S J . Mixing and entrainment characteristics in circular short ejectors[J]. Journal of Fluids Engineering, 2015, 137 (5): 051103.

[1]	崔则阳, 孔祥玲, 付经伦, 施佳君. 一种基于图像的燃气轮机叶型参数测量方法[J]. 发电技术, 2024, 45(1): 106-112.
[2]	杨旸, 李耀强, 张金琦. 基于数值方法的燃气轮机贫预混旋流燃烧室单头部结构设计[J]. 发电技术, 2023, 44(5): 712-721.
[3]	杨旸, 郭德三, 李耀强, 张金琦. 燃气轮机贫预混多旋流组合燃烧室头部结构设计[J]. 发电技术, 2023, 44(2): 183-192.
[4]	张弘毅, 曲立涛. 9F级燃机选择性催化还原脱硝数值模拟研究与应用[J]. 发电技术, 2023, 44(1): 78-84.
[5]	金云峰, 刘超, 邓高峰, 关运龙, 郝建刚, 黄海舟, 蒋东翔. 燃气轮机进气过滤系统维修周期经济性分析[J]. 发电技术, 2022, 43(1): 119-125.
[6]	白明亮, 张冬雪, 刘金福, 刘娇, 于达仁. 基于深度自编码器和支持向量数据描述的燃气轮机高温部件异常检测[J]. 发电技术, 2021, 42(4): 422-430.
[7]	孔祥玲, 付经伦. 基于计算机视觉的三维重建技术在燃气轮机行业的应用及展望[J]. 发电技术, 2021, 42(4): 454-463.
[8]	邱彬, 付经伦. 燃气轮机排气扩压器研究现状[J]. 发电技术, 2021, 42(4): 437-446.
[9]	朱华, 严彪, 刘雨松, 李亮. 湿空气透平冷却技术研究[J]. 发电技术, 2021, 42(4): 412-421.
[10]	管金, 何宗泽, 吕小静, 翁一武. 30kW微型燃气轮机发电机组启动实验研究[J]. 发电技术, 2021, 42(4): 404-411.
[11]	金云峰, 刘超, 邓高峰, 关运龙, 田鑫, 黄海舟, 蒋东翔. 燃气轮机进气压差建模方法研究[J]. 发电技术, 2021, 42(4): 395-403.
[12]	黄友华, 马善为, 刘吉, 武正华. 燃气轮机烟气SCR脱硝系统优化设计与工程应用[J]. 发电技术, 2021, 42(3): 350-356.
[13]	方继辉,王荣. 重型F级燃气轮机IGV开度对压气机效率的影响[J]. 发电技术, 2020, 41(3): 317-319.

燃气轮机带阀片引射混合器内流特性分析

Analysis of Internal Flow Characteristics of Gas Turbine Ejector Mixer with Valve Plate

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

图/表 13

参考文献 17

相关文章 13

编辑推荐

Metrics

本文评价