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王怀博, 徐利岗, 刘学军, 苏笑曦.宁夏引黄灌区斗渠量测水设备比测试验研究水资源与水工程学报[J].,2018,29(6):250-255
宁夏引黄灌区斗渠量测水设备比测试验研究
Study on comparing measurement of volume of water equipment in lateral canal of the Yellow River irrigation district in Ningxia
  
DOI:10.11705/j.issn.1672-643X.2018.06.39
中文关键词:  量测水设备  斗渠  比测试验  可靠性分析  综合评价指标体系  引黄灌区
英文关键词:water measure equipment  lateral canal  comparison measurement experiment  reliability analysis  comprehensive evaluation index system  Yellow River irrigation district
基金项目:国家重点研发计划项目(2016YFC04002); 宁夏回族自治区水利厅水利科技项目“宁夏引黄灌区测量水设备比测引选及测控一体化系统研究”
作者单位
王怀博1, 徐利岗1, 刘学军1, 苏笑曦2 (1.宁夏水利科学研究院 宁夏 银川 750021 2.宁夏唐徕渠管理处 宁夏 银川 750001) 
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中文摘要:
      考虑稳定性、准确性、泥沙含量和气温变化等因素综合作用对量测水设备可靠性的影响,建立量测水设备比测综合评价指标体系。在宁夏引黄灌区唐徕渠斗渠建立试验点,分别在夏秋灌和冬灌两个行水期对5类设备进行比测评价。结果表明:灌溉期泥沙对新安装量测水设备的精度影响不大,气温变化不足以影响设备精度;单纯基于超声波原理的设备不适宜在泥沙含量较大的渠道应用;基于电磁法和超声波原理的智能化明渠流量测量系统测流的准确性较高,但稳定性不足;非接触式明渠雷达流量计可靠性最优,其低水位时流量误差综合不确定度为8.87%(受极端水位影响),中水位时为2.87%,高水位时为4.68%。研究可为引黄灌区不同流量级别渠道上量测水设备比测和选用提供借鉴。
英文摘要:
      Considering the influence of stability, accuracy, sediment concentration and temperature variation on the reliability of water measuring equipment, a comprehensive evaluation index system was established .A field test was performed in Tang Laiqu channel of the Yellow River irrigation district of Ningxia, which would be used to evaluate the five types of equipment in summer autumn irrigation and winter irrigation water period. The results showed that: the sediment of the irrigation period had little influence on the precision of the newly installed water measuring equipment, and the temperature change was not big enough to affect the precision of the equipment; the equipment based on ultrasonic principle was not suitable for the channel application with large sediment content; the accuracy of intelligent measurement system in open channel flow measurement system with electromagnetic method and ultrasonic principle was high, but the stability was insufficient; the non-contact open channel radar flow gauge had the best reliability, and the comprehensive uncertainty of the low water level reached 8.87% (affected by the extreme water level), the middle water level reached 2.87%, and the high water level reached 4.68%. The study can provide reference for the equipment comparison and selection in different flow level channels in the yellow irrigation area.
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