全射流微喷头的研制

Research on micro-fluidic-sprinkler

射程在5 m以上的大射程微喷头与普通的微喷头相比,具有降低工程系统投资,提高系统的经济性,降低喷灌强度,减少用水量等优点。将射流附壁理论应用于微喷头,开发出全射流微喷头是我国的首创。研制的WPXS300-300全射流微喷头,射流元件既是喷洒作业的出口零件,又是微喷头转动的驱动零件,喷嘴直径2.5 mm,射程在5 m以上,且结构简单,运行可靠。经测试,水量分布、压力与流量的关系、压力与射程的关系等性能数据均符合微喷头标准的要求。

Comparing with common micro-sprinklers, the micro-sprinkler over 5 m range has the advantages of decreasing cost, lowering irrigation intensity and reducing water usage, etc. It was invented in China, using stream＇s lean-wall principle in micro-sprinkler. The developed micro-fluidic-sprinkler WPXS300-300, whose stream jetting part works as both the exit part and the rotation driving part, has a nozzle of 2.5 mm and a range of over 5 m. It has a simple structure and reliable function. By testing the water distribution, relation between pressure and flux, and between pressure and range for the developed sprinkler can meet the standard of micro-sprinkler.