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| 蒸汽对涡街流量计计量特性影响分析 | |
| 引用本文： | 许文达,张涛,毕英,李宝,刘伟光.蒸汽对涡街流量计计量特性影响分析[J].天津大学学报(自然科学与工程技术版),2014,47(8):683-688. |
| 作者姓名： | 许文达 张涛 毕英 李宝 刘伟光 |
| 作者单位： | 1. 天津大学电气与自动化工程学院,天津300072;国家蒸汽流量计量站,烟台264003 2. 天津大学电气与自动化工程学院,天津,300072 3. 国家蒸汽流量计量站,烟台,264003 |
| 基金项目： | 国家质量技术监督检验检疫总局科技资助项目 |
| 摘 要： | 通过涡街流量计分别在以水为介质的水流量计量标准装置、以空气为介质的音速喷嘴法气体流量标准装置和以蒸汽为介质的蒸汽流量标准装置进行比对实验,测试了涡街流量计仪表系数和其介质的关系,实验结果表明3种介质条件下仪表系数存在规律性偏差,利用流体力学及卡门涡街原理,结合蒸汽独特的热力学性质,深入分析了蒸汽对涡街流量计计量特性造成计量性能影响的因素,对涡街流量计在3种介质下仪表系数存在规律性偏差实验结论进行了解释和分析,得到了蒸汽和空气流体条件下的计算拟合公式,并提出了系数修正的计算方法. |
| 关 键 词： | 蒸汽 涡街流量计 可压缩流体 旋涡发生体 等熵指数 仪表系数 |
Analysis of the Influence of Steam on the Measurement Characteristics of Vortex Flowmeter |
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| Xu Wenda,Zhang Tao,Bi Ying,Li Bao,Liu Weiguang.Analysis of the Influence of Steam on the Measurement Characteristics of Vortex Flowmeter[J].Journal of Tianjin University(Science and Technology),2014,47(8):683-688. | |
| Authors: | Xu Wenda Zhang Tao Bi Ying Li Bao Liu Weiguang |
| Institution: | Xu Wenda,Zhang Tao,Bi Ying,Li Bao,Liu Weiguang( 1.School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China;National Steam Flowrate Measurement Station, Yantai 264003, China) |
| Abstract: | The relations between media and vortex flowmeter instrument coefficient have been tested in a comparative trial by using water as the medium of water flow measurement standard apparatus,air as the medium of sonic nozzle gas flow standard device and steam as the medium of steam flow standard device respectively.Experimental results show that there exists a regularity of deviation in the instrument coefficient under the condition of three kinds of media.Based on the fluid mechanics and the Carmen vortex principle,considering to the unique thermodynamic properties of vapor,the influencing factors on the characteristics of steam measurement of vortex flowmeter were analyzed.Moreover,the test results that instrument coefficient presented regularity deviation under three kinds of media were explained and analyzed.Calculation fitting formula under the condition of air and steam fluid is obtained and the calculating method of coefficient modification is proposed. |
| Keywords: | steam vortex flowmeter compressible fluid vortex generating body isentropic index instrument coefficient |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |