在线测量汽轮机排汽湿度的微波谐振腔结构优化-中国电机工程学报.PDF

第 29 卷 第 26 期 中 国 电 机 工 程 学 报 Vol.29 No.26 Sep. 15, 2009 2009 年 9 月 15 日 Proceedings of the CSEE ©2009 Chin.Soc.for Elec.Eng. 1 0258-8013 (2009) 26-0001-06 TK 261 A 470 20 文章编号： 中图分类号： 文献标志码： 学科分类号： ⋅ 在线测量汽轮机排汽湿度的微波谐振腔结构优化 韩中合，钱江波，田松峰 ( 电站设备状态监测与控制教育部重点实验室(华北电力大学) ，河北省 保定市 071003) Structure Optimizing of Microwave Resonator for Steam Wetness Online Measuring HAN Zhong-he, QIAN Jiang-bo, TIAN Song-feng (Key Lab of Condition Monitoring and Control for Power Plant Equipment (North China Electric Power University), Ministry of Education, Baoding 071003, Hebei Province, China) ABSTRACT: The resonator plays a role of wetness sensor in 关键词：动力机械；汽轮机；蒸汽湿度测量；微波谐振腔； the process of steam wetness measuring based on microwave 结构优化 resonator perturbation. The structure of microwave resonator 0 引言 has a important effect on measurement precision. The resonator’s style and working mode and working frequency 汽轮机排汽湿度的准确确定，有助于了解湿蒸 were chosen. The structure of resonator and the coupling 汽区级的工作状态，确定级的运行效率，为汽轮机 structure between resonator and wave-guide were optimized by 安全经济运行以及透平的优化设计、结构改进提供 using ANSOFT HFSS9.0 software. The ellipse hole has the 参考。因此，汽轮机内蒸汽湿度的准确测量具有重 best coupling effect. The optimized structure of the end 要的理论意义与实用价值。利用湿蒸汽的不同物理 separator is three-ring grid. It was proved that the resonator has a high quality factor and a good high-frequency character by 特性，研究出了不同的蒸汽湿度测量方法[1-13] 。微