农业灌排一体化ABR管网系统的研发和数值模拟  

A new pipe network for irrigation and drainage:Development and simulation

作　　者：胡少伟 郭泽元 金文粲 何宗院 叶宇霄 潘福渠 HU Shaowei;GUO Zeyuan;JIN Wencan;HE Zongyuan;YE Yuxiao;PAN Fuqu(Yellow River Laboratory,Zhengzhou University,Zhengzhou 450000,China;School of Civil Engineering and Architecture,Guangxi University,Nanning 530000,China;Shandong Dongxin Plastic Technology Co.,Ltd.,Liaocheng 252000,China)

机构地区：[1]郑州大学黄河实验室,郑州450000 [2]广西大学土木建筑工程学院,南宁530000 [3]山东东信塑胶科技有限公司,山东聊城252000

出　　处：《灌溉排水学报》2024年第8期21-29,共9页Journal of Irrigation and Drainage

基　　金：国家重点研发计划项目(2022YFC3004401);国家自然科学基金委重点项目(52130901);河南省自然科学基金项目(232300421003);泰山产业领军人才项目(tscx202306104)。

摘　　要：【目的】设计一种适用于山东平原地区辣椒类旱田作物的农田灌排一体化ABR管网系统。【方法】采用试验测试、CFD数值模拟和试点应用的方法,开展了农田灌排一体化系统的管网优化布置和性能测试。【结果】①与单环和树状管网相比,双环等距管网布局能将系统内各灌排桩出水占比的离散系数从1.327降低至0.766,从而提高系统的供水平衡性;②单套管网系统适宜农田面积为1.5 hm2,且各灌排桩应采用50 m等间距布置;该设置下,各灌排桩灌溉出水口的流速为0.60~0.24 m/s,能够在12 h内完成农田灌溉;③系统的灌排桩单桩排水能力为28.8 m^(3)/h,足以确保在大暴雨期间农田内不会积水。【结论】该系统的实施能显著提高农田灌溉和抗洪排涝能力。【Objective】Acrylate polymer blended with poly(vinyl chloride)resin(ABR)is a composite material to make pipes.This paper investigates the pipe network manufactured by it for irrigation and drainage.【Method】The study was based on field experiments and CFD simulations.Based on performance of the network under different configurations,we optimized the system and applied it to dry-land chili pepper grown in Shandong plains in Northern China.【Result】①Compared with single-ring and tree-like pipe network configurations,the double-ring and equidistant pipe network configuration in the ABR system reduced the coefficient of variation of water discharge for each irrigation-drainage pile by 1.327 to 0.766,thereby enhancing water supply balance.②The suitable area for a single set of pipe network systems was 1.5 hm2,and the distance between the irrigation-drainage piles was 50 m.Under these conditions,water flow velocity at the outlet of each pile varied from 0.60 to 0.24 m/s,and each irrigation event can be completed in 12 h.③The drainage capacity of each pile was 28.8 m^(3)/h,sufficient to alleviate waterlogging during heavy rainfalls.【Conclusion】The proposed irrigation-drainage system significantly improved irrigation and flooding-control for the chili pepper grown in the dryland in the study area.It has a wide implication and application for crop productions in other regions.

关 键 词：农业水利 灌排系统 模拟 ABR管材 

分 类 号：S277.5[农业科学—农业水土工程]