一、喷头喷头是喷灌系统的主要部件。其作用是把有一定压力的水喷射到空中,散开成细小水滴,然后均匀地散落在控制范围的地面上。喷头的种类很多,按工作压力及控制范围的大小可分三种:(工作压力2公斤/厘米~2以下,射程在20米以内),中压喷头(工作压力2—4公斤/厘米~2,射程20—40米);高压喷头(工作压力4公斤/厘米~2以上,射程40米以上)。也可按喷头射程远近不同,分为近程、中程、远程三种。目前我国农业上使用最多的是中压中程喷 First, the nozzle sprinkler system is the main component. Its role is to have a certain pressure of water spray into the air, spread into small droplets, and then evenly scattered in the control of the ground. Many different types of nozzles, according to the size of the working pressure and control range can be divided into three types: (working pressure 2 kg / cm ~ 2 the following range of 20 meters), medium pressure nozzle (working pressure 2-4 kg / cm ~ 2 , Range 20-40 meters); high-pressure nozzle (working pressure 4 kg / cm ~ 2 above, a range of 40 meters or more). Can also press the nozzle range is different, divided into short-range, medium-range, remote three. At present, China’s agricultural use is the most medium-pressure medium-range spray