| 用于管道煤粉流量测量的文丘里管型设计及优化 |
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| 引用本文： | 吴占松,谢菲.用于管道煤粉流量测量的文丘里管型设计及优化[J].清华大学学报(自然科学版),2007,47(5):666-669. |
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| 作者姓名： | 吴占松 谢菲 |
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| 作者单位： | 清华大学,热能工程系,热科学与动力工程教育部重点实验室,北京,100084 |
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| 摘 要： | 为准确测量电站管道煤粉流量,设计了一种基于文丘里(V en turi)法的煤粉流量计。首先采用气固两相流数值模拟的方法,研究不同管型参数对文丘里法测量管道煤粉流量的影响,发现管型参数是影响稀相气固两相流测量结果的关键因素,并由此提出了文丘里管型设计的优化原则。然后从提高测量精度和保证测量稳定性2方面出发,对文丘里流量计进行了设计优化,获得了3种文丘里管的管型参数,可为管道煤粉流量测量的试验研究提供参考。
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| 关 键 词： | 气固两相流 文丘里管 参数优化 |
| 文章编号： | 1000-0054(2007)05-0666-04 |
| 修稿时间： | 2006年4月29日 |
Optimization of Venturi tube design for pipeline pulverized coal flow measurements |
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| WU Zhansong,XIE Fei.Optimization of Venturi tube design for pipeline pulverized coal flow measurements[J].Journal of Tsinghua University(Science and Technology),2007,47(5):666-669. |
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| Authors: | WU Zhansong XIE Fei |
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| Abstract: | A Venturi flow meter was designed to accurately measure the mass flow rate of pulverized coal in power plant pipelines.Numerical simulations of the dilute turbulent gas-solid two-phase flow in a horizontal Venturi tube were used to study the effects of the Venturi tube geometry on the pressure distribution in the mixture.The results show that the Venturi tube geometry strongly influences the metering of the dilute gas-particle two-phase flow.The geometry can be optimized to improve the measurement precision and ensure stable measurements with the geometries of three types of Venturi tubes optimized for an experimental study of pulverized coal mass flow rate measurements. |
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| Keywords: | gas-solid two-phase flow Venturi tube parameter optimization |
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