闸管灌田间配水技术研究  

Study on Field Water Distribution Technique under Gated Pipe Irrigation

作　　者：樊灏 

机构地区：[1]山西省水利水电科学研究院,山西太原030002

出　　处：《水利与建筑工程学报》2010年第6期28-29,34,共3页Journal of Water Resources and Architectural Engineering

基　　金：国家"863"高技术研究发展计划项目(2006AA100220)

摘　　要：闸管灌是提高田间灌水效率的先进的灌水技术。要实现闸管灌在田间的精确配水,就必须正确估算闸口前的工作压力。根据田间闸管灌配水的实际情况,将灌溉管网分为田间软管系统和软管前的管道系统两部分,分析推导了管网的压力计算模型,确定了管道的压力分布和配水闸前的工作压力。根据闸口的流量～压力～开度关系,便可求得所要求的配水流量下的开度。所研究的配水技术在田间得到了验证,具有较好的精度。The gated pipe irrigation is an advancing irrigation technique with the advantages of high water use efficiency. A correct estimate for operating pressure before gate is necessary for the purpose of precise water distribution. Here, the irrigation pipe network is separated into the field hose pipe system and the pipe line system in the upstream of field hose pipe based on the field practice, the pressure computing model of pipe network is derived, and the pipeline pressure distribution is confirmed. Accord- ing to the relation of discharge-pressure-opening, the gate opening under required distribution discharge could be obtained, realizing the field precision distribution under gated pipe irrigation. The distribution technique studied here has been tested in field and reaches a higher precision.

关 键 词：闸管灌 配水技术 闸口开度 流量 

分 类 号：S275[农业科学—农业水土工程]