对灌溉管路系统经济管径计算方法的探讨

The Investigation on the Calculation Theory of the Optimal Economic Diameter in an Irrigation Pipe System

经过多年对农田(果树)灌溉压力管路系统工程设计的实践,对以往沿用的计算烦琐且计算精度较低塑料压力管路经济管径的确定方法进行了改进和简化,并在管道灌溉工程实践中进行了验证和推广使用。实践证明,这种灌溉管路系统经济管径计算方法,比以往沿用的计算方法,计算精度较高,简单易行,且实用性强,易于掌握。

Through the design practice of the farmland irrigation pipe system for many years, The author improve and simplify the past calculation principle of the optimal economic diameter in an plastic low pressure irrigation pipe system which needs larger computation but the performance show lower precision. A verification and promotion of the new theory has already done. The result shows that comparing with the old calculation method, this theory have the advantages of higher accuracy, easier to conduct, better practicality and more convenient to master.