韩建春,荀华
HAN Jianchun, XUN Hua

• 1:内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司，呼和浩特 010020

摘要(Abstract)：

针对变汽温法测量过桥汽封漏汽率存在的需单独的试验时间、参数稳定性差、敏感性强等问题，提出一种以能耗指标与机组效率为基准的过桥汽封漏汽能效平衡算法。该算法根据汽轮机能量转换效率与发电热耗率的内在关系对汽轮机各缸效率及运行参数进行修正，实现了汽轮机性能试验过程中汽轮机发电热耗率与过桥汽封漏汽率计算的同步完成，有效减少了汽轮机性能试验步骤，降低了性能试验中的操作风险。
Aiming at the problems of independent test time, poor parameter stability and strong sensitivity in measuring the leakage rate of bridge steam seal by variable steam temperature method, an energy efficiency balance algorithm for bridge steam seal leakage based on energy consumption index and unit efficiency is proposed. This algorithm modifies the efficiency and operating parameters of each cylinder of the steam turbine according to the internal relationship between the energy conversion efficiency of the steam turbine and the heat consumption rate of the power generation, and realizes the synchronous calculation of the heat consumption rate of the steam turbine and the leakage rate of the bridge steam seal during the performance test of the steam turbine, which effectively reduces the performance test steps of the steam turbine and the operation risk in the performance test.

关键词(KeyWords)： 汽轮机;过桥汽封;漏汽率;变汽温法;能效平衡;发电热耗率
steam turbine;bridge steam seal;steam leakage rate;variable steam temperature method;energy efficiency balance;heat consumption rate of power generation

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 韩建春,荀华
HAN Jianchun, XUN Hua

DOI: 10.19929/j.cnki.nmgdljs.2022.0103

参考文献(References)：

• [1] 李刚,胥建群,顾凌志,等.高中压合缸汽轮机中间分隔轴封漏汽研究[J].发电设备, 2012(11):396-399.
  [2] 美国机械工程师协会.汽轮机性能试验规程:ASME PTC6-2004[S].北京:中国电力出版社, 2015.
  [3] 全国汽轮机标准化技术委员会.汽轮机热力性能验收试验规程:GB/T 8117.2-2008[S].北京:中国标准出版社, 2009.
  [4] 沈维道,童均耕.工程热力学[M].北京:高等教育出版社, 2007.
  [5] 韩建春,刘永江,张国斌,等.基于抽汽供热条件下汽轮机纯凝发电热耗率计算方法研究[J].汽轮机技术, 2019, 61(4):294-298. HAN Jianchun, LIU Yongjiang, ZHANG Guobin, et al. Calculating Method of Heat Consumption Rate of Steam Turbine Pure Condensation Power Generation Based on Extraction and Heating Conditions[J]. Turbine Technology, 2019, 61(4):294-298.
  [6] 韩建春,王润,孟南,等.热电联产机组节能量的蒸汽回归算法分析[J].内蒙古电力技术, 2019, 37(4):54-59. HAN Jianchun, WANG Run, MENG Nan, et al.Analy-sis of Steam Regression Algorithms for Energy Saving of Cogeneration Units[J].Inner Mongolia Electric Power, 2019, 37(4):54-59.
  [7] 余兴刚,李旭,陈非,等.高中压合缸汽轮机过桥汽封内泄漏流动的数值研究[J].汽轮机技术, 2017, 59(5):365-370. YU Xinggang, LI Xu, CHEN Fei, et al.Numerical In-vestigation of Central Gland Leakage Flow for a Com-bined HP-IP Casing Steam Turbine[J]. Turbine Technol-ogy, 2017, 59(5):365-370.
  [8] 张才稳,蔡攸敏,袁峰.高中压缸中间轴封漏汽测试方法在性能考核试验中的应用[J].电站系统工程, 2011, 27(5):52-54. ZHANG Caiwen, CAI Youmin, YUAN Feng. Applica-tion of Labyrinth Leakage Measurement and Calculation Method between HP and IP Turbines in Performance Test[J]. Power System Engineering, 2011, 27(5):52-54.
  [9] 王雪飞.汽轮机转子中心孔对轴系动态特性的影响[J].热力透平, 2020, 49(2):115-118. WANG Xuefei. Influence of central Bore in Turbine Rotor on Shafting Dynamic Characteristics[J]. Thermal Turbine, 2020, 49(2):115-118.
  [10] 张培林,刘秀敏,赵悦菊,等.汽轮机汽缸高温密封环境模拟装置的试制及应用[J].华北电力技术, 2017(2):24-28. ZHANG Peilin, LIU Xiumin, ZHAO Yueju, et al. The Trial Production and Application of Simulated In-strument of Turbine Cylinder High Temperature and Sealed Environment[J]. North China Electric Power, 2017(2):24-28.
  [11] 李刚,胥建群,汤涛,等.汽轮机通流效率与机组热耗率关系的计算[J].江苏电机工程, 2014, 33(4):13-16. LI Gang, XU Jianqun, TANG Tao, et al. The Rela-tionship Between Flow Path Performance and Heat Consumption Rate of Steam Turbine[J]. Jiangsu Elec-trical Engineering, 2014, 33(4):13-16.
  [12] 曹丽华,孟宾,李盼.汽轮机叶顶汽封泄漏涡对汽流激振力的影响[J].振动与冲击, 2020, 39(16):283-288. CAO Lihua, MENG Bin, LI Pan.Effect of blade tip seal leakage vortex on steam flow excitation force of a steam turbine[J]. Journal of Vibration and Shock, 2020, 39(16):283-288.
  [13] 曹丽华,王佳欣,李盼,等.汽轮机叶顶间隙泄漏流结构及高损失区分布研究[J].中国电机工程学报, 2018, 38(7):2055-2062, 2220. CAO Lihua, WANG Jiaxin, LI Pan, et al. Analysis on Structure and High Loss Zone of Tip Leakage Flow in Steam Turbine[J]. Proceedings of the CSEE, 2018, 38(7):2055-2062, 2220.
  [14] 曹丽华,王佳欣,李盼,等.汽轮机高压级叶顶间隙泄漏流的掺混作用分析[J].化工进展, 2017, 36(8):2859-2865. CAO Lihua, WANG Jiaxin, LI Pan, et al. Analysis on mixing process of tip shroud leakage flow in high-pressure stage of steam turbine[J]. Chemical Industry and Engineering Progress, 2017, 36(8):2859-2865.
  [15] 盛伟,席泽艳,李子超.高中压合缸汽轮机过桥汽封磨损量的数值研究[J].汽轮机技术, 2019, 61(2):117. SHENG Wei, XI Zeyan, LI Zichao.Numerical Simula-tion on Wear Quantity of the HP-IP Mid-span Pack-ing in Steam Turbine[J]. Turbine Technology, 2019, 61(2):95-97, 117.
  [16] 赵闫涛.330 MW汽轮机轴封漏汽原因分析及处理[J].内蒙古电力技术, 2016, 34(2):94-96, 100. ZHAO Yantao. Analysis and Processing of Shaft Seal Leakage on 330 MW Turbine[J]. Inner Mongolia Elec-tric Power, 2016, 34(2):94-96, 100.