基于前池水位高程的简易灌区量水法  

A Simple Irrigation Water Measurement Method Based on the Water Level of Forebay

作　　者：刘德斌 马莉 潘德峰 

机构地区：[1]江苏省沿海水利科学研究所,江苏东台224200

出　　处：《安徽农业科学》2014年第27期9625-9626,9632,共3页Journal of Anhui Agricultural Sciences

摘　　要：农业灌溉用水的计量是灌区量中的重要环节,针对灌区已经安装好的泵站,提出了利用前池水位法测定泵站运行流量的方法。在东台三灶灌区,通过对泵站工作时的运行流量Q及与之对应的前池水位hq进行实测后,拟合出hq-Q回归曲线,根据曲线和实测hq值可进行灌区灌水量计算。实测结果表明,在泵站正常运行流量范围内,hq-Q呈良好的二次曲线关系,5次前池水位测定即可拟合出满足计算流量精度要求的hq-Q回归曲线,因此前池水位法是一种简便易行的灌区量水方法。Measurement of the agricultural irrigation water is important in the irrigation district.For the installed pumping stations,a method based on the water level of forebay was suggested to determine the pump station operation flow.In Dongtai＇s Sanzao irrigation area,the pump flow Q and the corresponding water level of forebay hq were measured and hq-Q curve was fitted,and then the total irrigation water could be calculated with the curve and hq value.The results showed that in the pump running flow range,hq-Q was well fitted with a conic curve,and five water level of forebay values can make an hq-Q curve meeting the calculation requirements well.The water level of forebay method is a simple method to calculate the irrigation water.

关 键 词：灌区量水 前池水位 水泵流量 曲线拟合 

分 类 号：S275.1[农业科学—农业水土工程]