摘要
目前在农田管道输水系统设计中 ,最优管径的计算常采用给水管道工程管径优化设计的理论和方法 ,而没有考虑轮灌对系统的影响 .本文借鉴给水管道工程计算方法 ,结合农田管道输水系统自身特点 ,引入管网系数 ,提出农田管道输水系统管径优化选择方法 。
Pipe irrigation in farmland is an importamnt form to save water at the present in our country.During the design of pipe irrigation system,the designers concern is how to reduce the investment and energy cost.Presently,in the process of designing pipe irrigation system,in order to calculating the optimal diameter,the theory and method of water supplying pipe engineering diameter optimal design are adopted,without considering the influence of altemate irrigation on the system.In this paper,the calculating method of water supplying pipe engineering is used for reference,considering the property of pipe net,introducing the coefficient of pipe net,present a method of optimal choice of pipe diameter in pipe irrigation system.In the end,a case is used to prove the validity of the method.
出处
《天津大学学报（自然科学与工程技术版）》
EI
CAS
CSCD
2000年第3期386-389,共4页
Journal of Tianjin University：Science and Technology
基金
天津市火炬计划资助项目
关键词
管径选择
管网系数
农田
管道输水系统
灌溉系统
pipe irregation system
the choice of diameter
the coefficent of pipe net
