水击清除微压微管滴头物理颗粒堵塞初探

Preliminary Study on Using Water Hammer to Clear Physical Particles in Micro-pressure Micropipe Emitter

通过自行设计装置,利用水击清除微压微管滴头物理颗粒,结果表明:在毛管尾部设置尾阀开关装置,调节尾阀开、关时间,由此在毛管沿线产生的水击脉动压强能够清除微管滴头物理颗粒堵塞。从理论角度阐述了毛管内水击脉动压强产生的机理,分析了微压微管滴头物理颗粒堵塞的成因,并用自编运算软件显现水击压强沿毛管沿线的变化过程,依此提出了水击可以作为清除微压微管滴头物理颗粒堵塞的一种解决方案。

Water hammer can be used to clear physical particles in micro-pressure micropipe emitter based on self-made device. The results showed that clogging particles can be removed by water hammer pressure which generated from a sudden open and close of the tail valve at the end of the lateral tube. The change of water hammer pressure in the lateral tube is deduced from a series of math formulas and self-edit fortran program. On the basis of the detail analysis about the cause of particle clogging, a better solution was proposed that the water hammer pressure can be used to clear the clogging.