| 示踪法测量气体流量的试验研究 |
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| 引用本文： | 曾宪阳,池作和,郑明广,马一太. 示踪法测量气体流量的试验研究[J]. 流体机械, 2011, 39(9). DOI: 10.3969/j.issn.1005-0329.2011.09.002 |
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| 作者姓名： | 曾宪阳 池作和 郑明广 马一太 |
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| 作者单位： | 1. 中国计量学院,浙江杭州,310018
2. 天津大学,天津,300072 |
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| 基金项目： | 浙江省教育厅科研项目(Y200909294); 浙江省高等学校“流量计量仪表及在线校准技术创新团队”项目(2009R50024); 国家质检总局科技计划项目(2010QK402) |
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| 摘 要： | 以空气作为被测流体,以CO作为示踪气体,在直径为0.300m的90°弯曲管道内对示踪法测量气体流量进行了试验研究。结果表明,多点释放/多点取样比单点释放/单点取样时,取样点处示踪气体的浓度测量偏差小。释放点位于弯头上游7D～13D(D为管道直径)、取样点位于弯头下游10D～14D处,流量计算值(示踪法)与测量值(涡轮流量计)的相对误差在-2.15%～1.69%的范围内,释放点与取样点的位置越远,示踪法测量流量的相对误差越小。示踪气体的释放量需要与管道输送气体流量相匹配。对于含有脏污介质的大口径管道工业气体输送过程中的流量计,采用示踪法进行在线校准,是一种简单有效的校准方法。
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| 关 键 词： | 示踪气体 流量 气体流量计 误差 校准 |
Experiment on the Measurement of Gas Flow Rate Using Tracer Gas Technique |
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| ZENG Xian-yang,CHI Zuo-he,ZHENG Ming-guang,MA Yi-tai. Experiment on the Measurement of Gas Flow Rate Using Tracer Gas Technique[J]. Fluid Machinery, 2011, 39(9). DOI: 10.3969/j.issn.1005-0329.2011.09.002 |
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| Authors: | ZENG Xian-yang CHI Zuo-he ZHENG Ming-guang MA Yi-tai |
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| Affiliation: | ZENG Xian-yang1,CHI Zuo-he1,ZHENG Ming-guang1,MA Yi-tai2(1.China Jiliang University,Hangzhou 310018,China,2.Tianjin University,Tianjin 300072,China) |
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| Abstract: | Experiment on the measurement of gas flow rate using tracer gas technique in a 0.300m internal diameter and 90-degree bent pipe are presented,which CO and air are selected as tracer gas and gas stream.Results show that the bias of tracer gas concentration at sampling points by multi-points injection /sampling method are smaller than single-points injection /sampling method.There is a good correlation between the gas flow rates measured by using tracer gas technique and turbine flowmeter,which the relative e... |
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| Keywords: | tracer gas flow rate gas flowmeter error calibration |
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