流体机械2011，Vol.39Issue(9)：6-10,5.DOI:10.3969/j.issn.1005-0329.2011.09.002
示踪法测量气体流量的试验研究
Experiment on the Measurement of Gas Flow Rate Using Tracer Gas Technique
摘要
Abstract
Experiment on the measurement of gas flow rate using tracer gas technique in a 0.300m internal diameter and 90-de-gree 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 errors are the range of -2. 15% ～ 1.69% when the tracer gas injection points on the upstream at bend with the distance of 7D ～13D ( D is the internal diameter of pipe) , and the sampling points on the downstream at bend with the distance of 10D - 14D. The farther distances of the tracer gas injection point and sampling point, the lower of the flow rate relative errors measured by using tracer gas technique and turbine flowmeter. The constant injection rate of tracer gas should match with the gas flow rate in the duct. It is a simple and effective method that gas flowmeter calibration with tracer gas technique on the large di-ameter industrial gas (not fully purified) pipeline transportation.关键词
示踪气体/流量/气体流量计/误差/校准Key words
tracer gas/ flow rate/ gas flowmeter/ error/ calibration分类
通用工业技术引用本文复制引用
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):6-10,5.基金项目
浙江省教育厅科研项目(Y200909294) （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) （2009R50024）
国家质检总局科技计划项目(2010QK402) （2010QK402）
