| 循环流化床循环流率冲击法在线测量方法 |
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| 引用本文： | 胡南,姚宣,晁俊楠,杨海瑞,吕俊复. 循环流化床循环流率冲击法在线测量方法[J]. 动力工程, 2011, 31(7) |
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| 作者姓名： | 胡南 姚宣 晁俊楠 杨海瑞 吕俊复 |
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| 作者单位： | 清华大学热科学与动力工程教育部重点实验室,北京,100084 |
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| 基金项目： | 十一五科技支持计划(2006BAA03B02) |
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| 摘 要： | 开发了一种通过测量下落颗粒和靶板碰撞冲击力来确定颗粒流率的流量计,通过试验验证了该流量计的可行性,并研究了颗粒下落速度、颗粒粒度和颗粒密度对流量计的影响.建立了该冲击式流量计的理论模型,利用冷态流化床试验数据对理论模型进行了校验.结果表明：该流量计具有操作简便、测量准确、反应灵敏、易于校准、对提升管内的颗粒流动无干扰的特点;模型计算结果与试验数据较吻合,可利用模型简化流量计的校准程序,增加流量计的应用范围.
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| 关 键 词： | 循环流化床 循环流率 在线测量 冲击法 流量计 |
Impacting Method for On-line Measurement of Solid Circulating Rate in CFB |
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| Affiliation: | HU Nan,YAO Xuan,CHAO Jun-nan,YANG Hai-rui,Lü Jun-fu(Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Tsinghua University,Beijing 100084,China) |
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| Abstract: | A flowmeter has been developed for measurement of solid flow rate by measuring the impact force between dropping particles and the target plate,of which the availability was experimentally verified.Influence of following factors on measurement of the flowmeter was analyzed,such as the dropping velocity,size and concentration of particles.A theoretical model of flowmeter was set up,to which verification tests were made using test data of cold-state circulating fluidized bed.Results show that the flowmeter is... |
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| Keywords: | circulating fluidized bed solid circulating rate on-line measurement impacting method flowmeter |
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