中心支轴式喷灌机喷头配置方法及其数学模型  

Sprinkler configuration method and mathematical model of center-pivot irrigation system

作　　者：仪修堂[1] 窦以松[2] 兰才有[3] 杨培岭[1] 曾德超[1] 侯永胜[3] 高战地[3] 

机构地区：[1]中国农业大学水利与土木工程学院,北京100083 [2]中国水利水电科学研究院水利所,北京100044 [3]中国农业机械化科学研究院,北京100083

出　　处：《农业工程学报》2007年第2期117-121,共5页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家"863"计划课题(2002AA2Z4161)

摘　　要：以中心支轴式喷灌机结构尺寸为约束条件,以单位时间灌水深度和机组运行角速度为初始参数,对喷头配置方法进行了系统研究,建立了喷头配置数学模型,并开发出喷头配置软件。利用该方法和数学模型可确定中心支轴式喷灌机的最佳喷头配置方案,同时得出与该方案相匹配的机组入机流量和入机压力。该喷头配置模型和软件通用性强,可方便地用于各种长度的中心支轴式喷灌机,对于提高中心支轴式喷灌机的灌水均匀度,发挥机组及配套水泵的最佳性能具有重要意义。Based on the constraints of mechanical structure, according to the initial parameters--irrigation depth in unit time and rotation speed of center-pivot irrigation system, the sprinkler configuration method was researched, and a mathematical model for sprinkler configuration was founded, and a software for sprinkler configuration was developed. The optimal sprinkler configuration of center-pivot irrigation system can be obtained with the model, at the same time, the demand flow and head pressure were given. The applicability of the mathematical model is great, and this model can be utilized on center pivot irrigation systems with different lengthes. This model and software are significant to improve the uniformity of water distribution of center-pivot irrigation system and exert the best capability of pump for center-ivot irrigation system.

关 键 词：中心支轴式喷灌机 喷头配置 数学模型 

分 类 号：S220.34[农业科学—农业机械化工程]