摘要
沿潮白河冲积扇、永定河冲积扇上中下游,针对不同包气带结构、不同地下水埋深条件,布置62个数据监测点,系统开展了水电折算系数率定测试试验.通过布置远程水量监测系统、远程电量监测系统、动态水位监测系统、数据实时传输系统,实时获得农用机井的出水量、耗电量以及动态水位,分析得出不同区域、不同动态水位下农用井出水量与耗电量之间的折算关系,发现含水层的富水性以及区域地下水埋深是影响水电折算系数的主要参数.对比分析研究区域内的含水层富水性以及地下水水位埋深,得知北京市各区县水电折算系数为2.53-4.88 m3/（k W·h）的结论.该成果为支撑水电折算计量系统在北京以及全国的推广,并为提高较高水电折算计量系统的精度,提供了技术支撑.
A series of systematic tests were conducted to calibrate conversion coefficient between electrieity power consumed and water pumped tor agricultural wells by means of 62 monitoring points located at different vadose zone structures and groundwater tables in the up-, mid- and down-stream alluvial fans of River Chaobai and River Yongding. The conversion coefficients between the electricity consumed and water pumped were obtained for the agricuhural wells distributed in the different alluvial fans based on the real-time water flow rate, electricity consumed and dynamic level of groundwater, which were measured by using the remote water flow rate, electricity power and dynamic groundwater level monitoring systems as well as a real-time data transmission system. It was identified that the aqui- ler water abundance and local groundwater level are the dominant factors for determining a conversion coefficient. Moreover, the conversion eoefficients under various water abundances and groundwater levels were compared, the coefficient is in a range of 2.53 -4.88 m3/（ kW · h） for the counties and districts in Beijing. Not only can this outcome provide a technical support for an electricity - water conversion metering system to be applied in Beijing even in the whole nation, but also it can improve the accuracy of the system.
出处
《排灌机械工程学报》
EI
北大核心
2014年第11期998-1004,共7页
Journal of Drainage and Irrigation Machinery Engineering
基金
"十二五"国家科技支撑计划项目(2011BAD25B00
2012BAD08B02)
北京市科技计划项目
关键词
农用机井
水电折算系数
北京
平原
试验研究
agricultural well
conversion coefficient between electricity consumed and water
Beijing
plain area
experimental study
