燃气轮机是一种单机功率大、起动加速性好、运行平稳的动力装置，被许多国家作为军用船舶动力装置。随着红外探测和红外制导技术的迅速发展，红外辐射广泛的应用于军事，由于燃气轮机排气温度高，是船舶红外辐射的主要来源，易被红外探测和红外锁定，为了解决该问题，引射器被广泛用于排气装置降低船舶排气温度。本文对排气装置工况和结构参数对性能的影响进行研究，结果表明，随着排气系统工况的增加，引射系数和总压损失增加；随着主喷管直径降低，引射系数和总压损失都有所上升，混合度降低；随着次级喷管面积降低，引射系数降低，总压损失和混合度上升；随着多级引射器级间距的增加，引射系数增加。
Gas turbine is a power plant with large single power, good starting acceleration and stable operation, which is used as a military ship power plant by many countries. With the rapid development of infrared detection and guidance technology, infrared radiation is widely used in the military. Due to the high exhaust temperature of gas turbine, it is the main source of infrared radiation of ships, which is easy to be infrared detection and infrared locking. In order to solve this problem, ejectors are widely used in exhaust devices to reduce the exhaust temperature of ships. In this paper, the influence of exhaust device working conditions and structural parameters on the performance is studied. The results show that with the increase of exhaust system working conditions, the ejection coefficient and total pressure loss increase. As the diameter of the main nozzle decreases, the ejection coefficient and total pressure loss both increase, and the mixing degree decreases. With the decrease of secondary nozzle area, the ejection coefficient decreases, and the total pressure loss and mixing degree increase. The ejection coefficient increases with the increase of stage spacing of multistage ejector.
2026,48(3): 70-74 收稿日期：2025-6-12
DOI：10.3404/j.issn.1672-7649.2026.03.011
分类号：U66
基金项目：国家自然科学基金资助项目（U2241270）
作者简介：叶楠(1984-),男,博士,高级工程师,研究方向为船舶进排气
参考文献：
[1] 朱绪宝, 武金虎. 隐身、反隐身技术发展现状及趋势[J]. 航天电子对抗, 1991(3): 1-10+19.
ZHU X B, WU J H. Development status and trend of stealth and anti-stealth technology[J]. Aerospace Electronic Countermeasure, 1991(3): 1-10+19.
[2] 史振, 张善科, 原文祺, 等. 船用排气引射装置计算及优化改进[J]. 舰船科学技术, 2021, 43(13): 88-92.
SHI Z, ZHANG S K, YUAN W Q, et al. Marine exhaust ejector device calculation and optimization improvement[J]. Ship Science and Technology, 2021, 43(13): 88-92.
[3] 徐仲方, 陆振华, 林文光, 等. 舰船燃气轮机排气红外抑制器性能的影响因素试验分析[J]. 能源技术, 2010, 31(3): 139-142+144.
XU Z F, LU Z H, LIN W G, et al. Experimental analysis of factors affecting the performance of infrared suppressor for ship gas turbine exhaust[J]. Energy Technology, 2010, 31(3): 139-142+144.
[4] 张梦. 船用排气引射器的红外抑制研究[D]. 哈尔滨: 哈尔滨工程大学, 2013.
[5] 张尤俊, 戈志华, 庞敬帅, 等. 集成蒸汽引射器热电联产余热供热系统全工况性能分析[J]. 动力工程学报, 2023, 43(3): 380-390.
ZHANG Y J, GE Z H, PANG J S, et al. Performance analysis of integrated steam ejector cogeneration waste heat heating system under full working conditions[J]. Journal of Power Engineering, 2023, 43(3): 380-390.
[6] MAQSOOD A. A study of subsonic air-air ejectors with short bent mixing tubes[D]. Queen’s University (Canada) 2008.
[7] 吴国强. 压气机排气蜗壳数值模拟[D]. 哈尔滨: 哈尔滨工程大学, 2008.
[8] 程稳. S弯喷管红外辐射特性预测及优化设计方法[D]. 西安: 西北工业大学, 2019.
[9] 李雨轩, 王强, 胡海洋. 舰用燃气轮机排气系统远程红外成像多尺度多线组宽带k分布模型数值仿真研究[J]. 红外与激光工程, 2019, 48(7): 24-33.
LI Y X, WANG Q, HU H Y. Numerical simulation of multi-scale multi-line group wideband k-distribution model for remote infrared imaging of marine gas turbine exhaust system[J]. Infrared and Laser Engineering, 2019, 48(7): 24-33.
[10] 李波, 陆振华. 百叶窗对船用排气红外抑制系统性能影响数值分析[J]. 机电设备, 2012, 29(1): 66-69.
LI B, LU Z H. Numerical analysis of the influence of louver on the performance of marine exhaust infrared suppression system[J]. Electromechanical Equipment, 2012, 29(1): 66-69.
[11] 孙磊. 9F燃气轮机排气系统结构设计及分析[D]. 上海: 上海交通大学, 2011.
[12] 张洪泉. 不同弯曲角度与旋流条件下引射器性能研究[D]. 哈尔滨: 哈尔滨工程大学, 2015.
[13] 赵静野, 孙厚钧, 高军. 引射器基本工作原理及其应用[J]. 北京建筑工程学院学报, 2001(3): 12-15.
ZHAO J Y, SUN H J, GAO J. Basic working principle and application of ejector[J]. Journal of Beijing University of Architecture and Engineering, 2001(3): 12-15.
[14] 薛彦军. 基于引射器的天然气液化过程模拟与优化[D]. 青岛: 青岛科技大学, 2022.
[15] 孟成, 范凯, 蔡报炜. 燃气轮机排气管引射效能仿真及优化[J]. 舰船科学技术, 2022, 44(7): 113-117.
MENG C, FAN K, CAI B W. Simulation and optimization of ejector efficiency of gas turbine exhaust pipe[J]. Ship Science and Technology, 2022, 44(7): 113-117.
[16] 李立国, 张靖周. 航空用引射混合器[M]. 北京: 国防工业出版社, 2007.
[17] 梁文威, 唐元元, 邝文涛, 等. 进排气系统结构参数对发动机工作不均匀性的影响[J]. 舰船科学技术, 2025, 47(6): 110-115.
LIANG W W, TANG Y Y, KUANG W T, et al. Influence of intake and exhaust system structure parameters on engine working inhomogeneity[J]. Ship Science and Technology, 2025, 47(6): 110-115.
[18] 刘传波, 宋宗林. 网格密度对计算流体力学仿真效率的影响研究[J]. 数字制造科学, 2019, 17(1): 54-58.
LIU C B, SHONG Z L. Influence of mesh density on computational fluid dynamics simulation efficiency[J]. Digital Manufacturing Science, 2019, 17(1): 54-58.
[19] 王忠义. 船用燃气轮机排气引射装置性能研究[D]. 哈尔滨: 哈尔滨工程大学, 2010.
