Study on the Heat Transfer Characteristics of Moisture Removal for Hollow Stationary Blade by Steam Heating

doi:10.7652/xjtuxb201805006

您当前的位置：

首页 >

文章列表页 >

Study on the Heat Transfer Characteristics of Moisture Removal for Hollow Stationary Blade by Steam Heating

更新时间：2025-07-09

- Study on the Heat Transfer Characteristics of Moisture Removal for Hollow Stationary Blade by Steam Heating
- Vol. 52, Issue 5, Pages: 44-49(2018)
- 作者机构：
  
  1. 西安交通大学能源与动力工程学院叶轮机械研究所,西安,710049
  2. 陕西省叶轮机械与装备工程实验室,西安,710049
  3. 上海汽轮机厂有限公司,上海,200240
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201805006
  CLC： TK474.7
- Online First：10 May 2018，
  
  Published：2018
- 稿件说明：
移动端阅览
Study on the Heat Transfer Characteristics of Moisture Removal for Hollow Stationary Blade by Steam Heating[J]. 2018, 52(5): 44-49.
DOI：

Study on the Heat Transfer Characteristics of Moisture Removal for Hollow Stationary Blade by Steam Heating[J]. 2018, 52(5): 44-49. DOI： 10.7652/xjtuxb201805006.

摘要

针对空心静叶蒸汽加热除湿过程中加热蒸汽侧凝结换热、叶片固壁热传导以及主流蒸汽侧沸腾换热的传热特性

开展了平板蒸汽加热除湿实验和一维理论分析。研究了主流蒸汽马赫数和加热温差对传热特性的影响

并基于实验数据拟合了蒸汽加热除湿过程的综合传热系数关联式。研究结果表明

一维理论分析得到的综合传热系数与实验值偏差小于10%

可用于汽轮机空心静叶蒸汽加热除湿的方案设计中。主流蒸汽马赫数的增大有利于叶片外表面的水膜蒸发

从而增大主蒸汽侧的沸腾换热传热系数

马赫数为0.28、0.31时

主流蒸汽沸腾换热的热阻最大; 马赫数为0.42时

固壁导热过程的热阻最大。主流马赫数是影响综合传热系数的主要因素

加热温差的影响很小

马赫数为0.42时的综合传热系数达到马赫数为0.28、0.31时的2倍左右。

Abstract

Experimental study and one-dimensional(1D)analysis are conducted to investigate the heat transfer characteristics of moisture removal for hollow stationary blade by steam heating

which involves the condensation heat transfer on heating steam side

the blade wall heat conduction and the boiling heat transfer on main steam side. The influences of the Mach number of main steam and the heating temperature difference are studied

and the comprehensive heat transfer coefficient of the moisture removal by steam heating is fitted according to the experimental data. It indicates that the deviation of comprehensive heat transfer coefficient between the experimental data and the prediction results based on 1D analysis is less than 10%

which could be applied to the engineering design. The increase in the main steam Mach number is favorable for evaporation of the water film on the outer blade surface and hence increases the boiling heat transfer coefficient. When the Mach number is 0.28 or 0.31

the thermal resistance in the main steam boiling process reaches its maximum. When the Mach number is 0.42

the thermal resistance of the solid wall heat conduction becomes the biggest. The comprehensive heat transfer coefficient is mainly affected by the main steam Mach number rather than the heating temperature difference

and it doubles when the Mach number increases from 0.28 to 0.42.

关键词

Keywords

references

倪永君, 秦华魂, 钱国荣, 等. 叶片水蚀的发展过程 [J]. 汽轮机技术, 2006, 48(6): 460-461.

NI Yongjun, QIN Huahun, QIAN Guorong, et al. Erosion developing process of the steam turbine blade [J]. Turbine Technology, 2006, 48(6): 460-461.

王新军, 毛靖儒, 李炎锋, 等. 汽轮机静叶缝隙去水效率的实验研究 [J]. 汽轮机技术, 1999, 41(3): 164-168.

WANG Xinjun, MAO Jingru, LI Yanfeng, et al. Experimental investigation on the water removal efficiency from steam turbine stationary blades by suction slot [J]. Turbine Technology, 1999, 41(3): 164-168.

王新军, 李炎锋. 缝隙宽度对汽轮机空心静叶去水效率影响的实验研究 [J]. 西安交通大学学报, 2000, 34(5): 24-27.

WANG Xinjun, LI Yanfeng. Effect of suction width on water removal efficiency for steam turbine hollow stationary blades [J]. Journal of Xi'an Jiaotong University, 2000, 34(5): 24-27.

李亮, 薛太旭, 刘启凡, 等. 湿蒸汽条件下空心静叶缝隙抽吸性能的试验研究 [J]. 西安交通大学学报, 2014, 48(11): 1-7.

LI Liang, XUE Taixu, LIU Qifan, et al. Experimental study on suction performance of hollow stator blade under wet steam [J]. Journal of Xi'an Jiaotong University, 2014, 48(11): 1-7.

GRIBIN V G. Experimental studies of liquid film suction from turbine stator blade surface in wet steam flow[C]∥ Proceedings of 11th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics. Madrid, Spain: ETC, 2015: 23-26.

徐连青. 汽轮机内部除湿技术刍议 [J]. 现代制造, 2012(12): 132-133.

王松涛, 刘建成. 蒸汽轮机气膜加热除湿技术的研究 [C]∥中国动力工程学会透平专业委员会2007年学术研讨会论文集. 重庆: 中国工程热物理学会, 2006: 511-515.

RYLEY D J, AL-AZZAWI H K. Suppression of the deposition of nucleated fog droplets on steam turbine stator blades by blade heating [J]. International Journal of Heat and Fluid Flow, 1983, 4(4): 207-216.

AKHTAR M S, BLACK J, SWAINSTON M J C. Prevention of steam turbine blade erosion using stator blade heating [J]. ARCHIVE Proceedings of the Institution of Mechanical Engineers, 1977, 191: 355-361.

杨世铭, 陶文铨. 传热学 [M]. 4版. 北京: 高等教育出版社, 2006: 301-327.

施明恒, 甘永平, 马重芳. 沸腾和凝结 [M]. 北京: 高等教育出版社, 1995.

陈阳,李军,周帅,等.间隙泄漏对透平级气动性能影响的数值研究.2018,52(4):63-69.[doi:10.7652/xjtuxb201804009]

陈尧兴,李志刚,李军.非均匀进汽时迷宫密封汽流激振动力特性的研究.2017,51(9):145-152.[doi:10.7652/xjtuxb2017 09021]

高庆,廖高良,张永海,等.透平级气动及运行参数对轮缘密封封严性能影响的数值研究.2017,51(7):62-72.[doi:10.7652/xjtuxb201707010]

董玮,楚武利,张皓光,等.垫升轴流风扇的静叶优化设计及内部流动机理数值研究.2017,51(5):156-164.[doi:10.7652/xjtuxb201705022]

范小军,李亮,李森,等.平板和静叶表面气流-水膜耦合流动特性的数值研究.2016,50(11):7-13.[doi:10.7652/xjtuxb 201611002]

周子杰,王新军,费昕阳.燃机透平静叶尾缘柱肋通道内的汽雾/空气冷却流动与换热特性数值研究.2016,50(11):21-27.[doi:10.7652/xjtuxb201611004]

姚宏,周逊,王仲奇.弯叶片对超声速流动的影响.2016,50(9):66-73.[doi:10.7652/xjtuxb201609011]

陈秀秀,晏鑫,李军.蜂窝叶顶密封对透平级气动性能的影响研究.2016,50(4):14-20.[doi:10.7652/xjtuxb201604003]

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Study on the Influence of Mach Number and Tip Cutback on the Aerodynamic Loss and Heat Transfer Characteristics of Turbine Rotor Tips

Experimental Study on Start-up Process of Pulsating Heat Pipe

Experimental Study on Pool Boiling Heat Transfer of R134a-Oil Mixture Outside Single Horizontal Enhanced Tubes

Experimental Study on the Effect of Elliptical Inlet Nozzle on Performance of Multi-Blade Centrifugal Fan

Experimental Study on New Variable Composition Heat Pump System

Related Author

JIANG Shoumin

JIANG Hongmei

TAO Zhi

YAN Yifei

LU Shaopeng

CUI Xin

SONG Liming

徐荣吉 1

Related Institution

School of Aeronautics and Astronautics, Shanghai Jiao Tong University

AECC Shenyang Engine Research Institute

School of Energy and Power Engineering, Xi'an Jiaotong University

Department of Refrigerating and Cryogenic Engineering, Xi'an Jiaotong University

School of Mechanical Engineer, Dalian Jiaotong University

⁰