对武汉石化厂蒸汽流量测量准确度问题的分析
Analysis on Accuracy of Vapor Flowrate Metering at Wuhan Petrochemical Factory
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- DOI:
- 作者:
- 熊翼
XIONG Yi
- 作者单位:
- 武汉检安石化工程有限公司, 湖北武汉 430082
Wuhan Overhaul and Installation Engineering Company, Wuhan 430082
- 关键词:
- 蒸汽流量;测量;准确度;分析;改进措施
vapor flowrate metering;accuracy;analysis;improvement measure
- 摘要:
- 针对蒸汽流量测量不准确的问题,结合武汉石化厂已有的蒸汽流量测量手段和蒸汽密度计算方法,分析了影响蒸汽流量测量的主要因素及原因,提出了提高蒸汽流量测量准确度的改进措施,包括:节流元件改用标准喷嘴,节流装置整套加工,采用正确的公式计算蒸汽密度,合理选用量程。武汉石化厂蒸汽流量仪表改造后,蒸汽计量误差显著减小,效果比较理想。
Combined with vapor flowrate metering means available at Wuhan Petrochemical Factory and the vapor density calculation method used, the main factors and reasons affecting vapor flowrate metering are analyzed. The improvement measures to raise the metering accuracy are put forward including substituting standard nozzle for throttle component, fabricating throttle equipment in a complete set, using correct formulas to calculate vapor density and choosing reasonable measuring range. The vapor flowrate apparatus at Wuhan Petrochemical Factory has been reformed and the metering error has been reduced significantly.2011,5(5): 77-80 收稿日期：2010-11-7分类号：TF068.23作者简介：熊翼(1973-),男,湖北武汉人,助理工程师,1993年毕业于武汉测绘科技大学,现从事仪表维护工作.参考文献：
[1]陆德民.石油化工自动控制设计手册(第三版)[M].北京:化学工业出版社,2000.
[2]蔡武昌,孙淮清,纪纲.流量测量方法和仪表的选用[M].北京:化学工业出版社,2000.