摘要
对保护地喷灌的雨滴直径作了分级，在此基础上提出了中雨强度小雨滴喷头的结构设计方案，推导了喷头主要参数的算式，经测试得出了中雨强度小雨滴喷头的基本技术参数．
In the article, we grade the diameters of rain drops for spray irrigation in protective ground. We put forward the structural design of spray nozzle of moderate rain intensity, small rain drops, derive the fomulas for calculating the main parameters of the spray nozzle, and obtain the fundemental technical data of the spray nozzle as a result of tests.
关键词
灌溉
喷头
导流罩
阻力系数
spray nozzle
diversion hood
damping parameter
