管道流量计现场校准技术在新疆水资源取用水管理中的应用

Application of pipeline flowmeter on-site calibration technology in Xinjiang water resources access management

基于对管道流量计现场校准方法的研究,开展新疆5个地区取水户21个管道流量的现场校准工作,以便携式超声波管道流量计所测得的管道流量数据与现有计量设施的管道流量数据进行比对,分别对2组数据的相对示值误差、重复性和不确定度进行分析,从中得出各取水管道合理的优化整改办法。对个别示值误差异常的取水管道计量设施给出具体解决方案,同时针对新疆国控水资源监测计量设施应用情况及存在的问题进行分类与梳理,提出相应的改进和完善的建议,有效提升新疆国控水资源监测数据的可靠性,为项目运行期发挥稳定效益提供技术依据。

Based on the research on the on-site calibration method of pipeline flowmeter, the on-site calibration of 21 pipeline flows of water intake households in five regions of Xinjiang is carried out. In order to obtain the reasonable optimization and rectification method of each water intake pipeline, it compares pipeline flow data measured by portable ultrasonic pipeline flowmeter with the pipeline flow data of existing metering facilities and analyze the relative indication error, repeatability and uncertainty respectively. Giving specific solutions for individual water intake pipeline metering facilities with abnormal indication error, classifying and sorting out application and existing problems of Xinjiang state-controlled water resources monitoring and metering facilities, putting forward to corresponding improvement suggestions will improve the reliability of state-controlled water resources monitoring data effectively and provide technical basis for stable benefits during project operation.