船用推进器低压透平末两级改型设计

推进技术 ›› 2013, Vol. 34 ›› Issue (6): 768-774.

船用推进器低压透平末两级改型设计

高雷^1,2,郑群¹,王超²,邓庆锋²

哈尔滨工程大学动力与能源工程学院, 黑龙江哈尔滨 150001;哈尔滨工程大学动力与能源工程学院, 黑龙江哈尔滨 150001;中船重工第703研究所, 黑龙江哈尔滨 150078;中船重工第703研究所, 黑龙江哈尔滨 150078

发布日期:2021-08-15
作者简介:高雷(1963—),男,博士生,高级工程师,研究领域为叶轮机械气动热力学。E-mail:leigao99@163.com
基金资助:
中央高校基本科研业务费专项资金资助(HEUCFZ1104)。

Retrofit for Last Two Stages of a Marine Low Pressure Steam Turbine

College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China;College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China;No.703Research Institute, China Shipbuilding Industry Corporation, Harbin 150078, China;No.703Research Institute, China Shipbuilding Industry Corporation, Harbin 150078, China

Published:2021-08-15

摘要/Abstract

摘要： 为了改进船用汽轮机低压缸末两级涡轮的气动性能,对叶栅和子午流道进行了改型设计,并运用计算流体力学方法对原型方案和改型方案的内部流场进行了数值模拟。计算结果表明,在流量不变的情况下,这种综合优化设计方法能使汽轮机性能大幅提高,最终汽轮机效率提高了2.162%,功率增加了1.7%。最后对次末级动叶进行了环形叶栅试验,测量了叶片表面压力和总压损失沿叶高的分布。试验结果表明,改型设计优化了动叶中的载荷分布,从而有效地降低了叶栅二次流损失和叶型损失。 

关键词: 透平设计;叶片改型;子午流道改型;数值研究 

Abstract: To improve the last two stage performance of a marine low pressure steam turbine, a redesign process was carried out using blade retrofit and flowpath modification. Then CFD method was used to investigate the turbine flowfield before and after redesign. The computational results show that under the mass flow unchanged condition, the steam turbine performance is increased dramatically with this synthesis optimization design method. The steam turbine efficiency has been increased by 2.162% and its power has been improved by 1.7%.Finally, an experiment about the penultimate rotor was executed. The static pressure coefficient distribution along the blade surface and total pressure loss coefficient distribution along the blade height were measured. The relevant results demonstrate that the blade load distribution of the penultimate rotor is optimized due to retrofit. The secondary flow loss and profile loss are also decreased. 

Key words: Turbine design; Blade retrofit; Flowpath modification; Numerical simulation.

高雷,郑群,王超,邓庆锋. 船用推进器低压透平末两级改型设计[J]. 推进技术, 2013, 34(6): 768-774.

GAO Lei^1,2,ZHENG Qun¹,WANG Chao²,DENG Qing-feng². Retrofit for Last Two Stages of a Marine Low Pressure Steam Turbine[J]. Journal of Propulsion Technology, 2013, 34(6): 768-774.

参考文献

[1] Yuan Xin, Tanuma T, Zhu Xiao-feng, et al.A CFD Approach to Fluid Dynamic Optimum Design of Steam Turbine Stages with Stator and Rotor Blades[R].ASME 2010-GT-22477.
[2] Stüer H, Truckenmüller F, Don B, et al.Aerodynamic Concept for very Large Steam Turbine Last Stages[R].ASME 2005-GT-68746.
[3] 黄家骅, 冯国泰, 于廷臣, 等.涡喷发动机涡轮改型匹配的数值仿真[J].推进技术, 2005,6(2):151-154.(HUANG Jia-hua, FENG Guo-tai, YU Ting-chen, et al.Numerical Simulation of Redesigned Turbine Matching in Turbojet Engine[J].Journal of Propulsion Technology, 2005,6(2):151-154.)
[4] 卢少鹏, 温风波, 梁晨, 等.多级涡轮气动设计与优化的研究[J].推进技术, 2012,3(6):888-896.(LU Shao-peng, WEN Feng-bo, LIANG Chen, et al.Investigation on Multi-Stage Turbine Aerodynamic Design and Optimization[J].Journal of Propulsion Technology, 2012,3(6):888-896.)
[5] 孙大伟, 乔渭阳, 孙爽, 等.叶片前缘改型对涡轮叶栅二次流的影响[J].推进技术, 2009,0(2):187-191.(SUN Da-wei, QIAO Wei-yang, SUN Shuang, et al.Effects of Leading-Edge Modification on Secondary Flow in Turbine Cascades[J].Journal of Propulsion Technology, 187-191.)
[6] 杨金广, 杨鹏, 吴虎, 等.基于二维优化方法的涡轮过渡流道设计[J].推进技术, 2013,4(2):161-167.(YANG Jin-guang, YANG Peng, WU Hu, et al.Design of Intermediate Turbine Flowpath Based on Two-Dimensional Optimization Method[J].Journal of Propulsion Technology, 2013,4(2):161-167.)
[7] 黄典贵, 寇磊, 高磊.国产18MW汽轮机末级通流部分优化设计[J].动力工程, 2000,0(4):770-774.
[8] 黄典贵, 王异成, 孙金坤, 等.国产18MW汽轮机次末级型线部分的改进设计[J].中国电机工程学报, 2001,1(4):52-55.
[9] 马云翔, 闻雪友, 林志鸿, 等.某型舰用汽轮机末级、次末级叶片弯扭改型设计[J].热能动力工程, 2000,5(90):621-623.
[10] 刘凤君, 王仲奇.汽轮机次、末两级弯扭静叶的工程设计与实验研究[J].工程热物理学报, 1996,7(2):161-165.
[11] Sigg R, Casey M V, Mayer J F, et al.The Influence of Lean and Sweep in a Low Pressure Steam Turbine:Throughflow Modeling and Experimental Measurements[R].ASME 2008-GT-50161.
[12] Senoo S, Ogata K, Nakamura T, et al.Three-Dimensional Design Method for Long Blades of Steam Turbines Using Fourth-Degree NURBS Surface[R].ASME 2010-GT-223.
[13] 周凡贞, 王世勇, 丁晓娟, 等.涡轮高载荷动叶片设计及级三维流场数值分析[J].推进技术, 2004,5(1):62-65.(ZHOU Fan-zhen, WANG Shi-yong, DING Xiao-juan, et al.Design and 3-D Numerical Analysis of Highly Loaded Turbine Rotor Blade[J].Journal of Propulsion Technology, 2004,5(1):62-65.)
[14] 宋彦萍, 芦文才, 王仲奇, 等.新型的汽轮机后加载叶型的研究[J].哈尔滨工业大学学报, 1999,1(2):55-57.
[15] 周逊, 韩万金.后加载叶型叶栅的三维压力场及其对损失发展的影响[J].推进技术, 2003,4(6):537-542.(ZHOU Xun, HAN Wan-jin.Three-Dimensional Pressure Distribution of the Cascades with Aft-Loading Profile and the Influence of Loss Development[J].Journal of Propulsion Technology, 2003,4(6):537-542.)