水利学报2018，Vol.49Issue(4)：439-445,7.DOI:10.13243/j.cnki.slxb.20170908
地埋式自升起喷灌装置设计原理分析
The design theory analysis of the buried lifting integrated sprinkling irrigation device
摘要
Abstract
Traditional fixed pip sprinkler irrigation has a series of problems such as obstructing cultivation and harvest.A new buried lifting integrated sprinkling irrigation device can solve these kinds of problems and save disassembling time.Based on the principle of shear strength decreasing of wet soil,the maximum resistance,which is needed by the device during its rising processed,and effective driver,are analyzed in the paper.Apart from that,the minimum inlet pressure formula under multi-type soil conditions is given after derivation,and the impact of pipe size on its rising processed is analyzed.The results show that the water pressure in the integrated irrigation equipment without outflow,which ensures that the soil is broken in all types of soil,is 0.7MPa,and the value is far greater than the actual working pressure of sprinkler irrigation.When there is outflow at the top of the sprinkler,the soil is easily broken when the water pressure is only 0.15MPa.With flow out of the top,the minimum water pressure required for breaking ground is inversely related to the diameter of the extension pipe when it is less than 90mm,and the pressure is almost constant when the diameter exceeds 90mm,which provides a theoretical basis for the optimization and design of the water-driven irrigation equipment.关键词
地埋式/自升起/一体化喷灌设备/设计原理分析Key words
buried/lifting/integrated sprinkling irrigation device/design theory analysis分类
农业科技引用本文复制引用
谢崇宝,张国华,彭文启,王伟杰..地埋式自升起喷灌装置设计原理分析[J].水利学报,2018,49(4):439-445,7.基金项目
水利部技术示范项目(SF-201621) （SF-201621）
中国水利水电科学研究院创新领军人才建设项目(环基本科研ky1758) （环基本科研ky1758）
