来取即付式系统设计流量有关参数取值的探讨  

On Parameter Choice for Design Capacity of On-demande Irrigation System

作　　者：王二英[1] 李娟[1] 刘小山[1] 

机构地区：[1]河北省水利技术试验推广中心,石家庄050061

出　　处：《价值工程》2015年第21期176-177,共2页Value Engineering

摘　　要：在农业灌溉工程控制面积较大,灌区内用水单位较多,作物的种类较多时,各用水单位和各种作物需要灌水的时间和用水量的任意性较大,难以执行统一编制的轮灌制度,如何设计管网流量,其主要影响因素——设计流量保证率如何取值成为关键。通过对设计流量保证率不同取值计算结果得出,其取值愈高,系统流量愈大。因此提出在规划设计阶段,应合理确定设计流量保证率。When the agricultural irrigation engineering control area is large, the water users are large in number and there are many kinds of crops, there is large randomicity in the irrigation time and quantity of the units and crops, so it is hard performance unified rotation irrigation. The value of design discharge assurance has become the key factor for the design of pipe network flow. The calculation results of different values of design discharge assurance show that the higher the value, the larger the system discharge. So it is put forward that the design discharge assurance should be determined reasonably in the planning stage.

关 键 词：农业灌溉 设计流量保证率 系统设计流量 

分 类 号：S275[农业科学—农业水土工程]