ZY-2型喷头水力性能及喷头组合试验

A Study on Hydraulic Power and Assemble of the Sprinkler Head ZY-2

在农大试区，对ＺＹ－２型喷头组成的半固定式喷灌系统进行了实喷测试。结果表明：在喷头工作压力为２９８ｍ，喷水量为２７９ｍ３／ｈ的条件下，组合喷灌强度为０１６７ｍｍ／ｍｉｎ，距喷头１６５ｍ处（最大喷水区）的打击强度为２８ｍｍ，组合均匀性系数为０８５８，均符合喷灌技术要求，效果良好。为进一步研究喷灌强度及打击强度对不同作物种类、不同生长期的影响提供理论和实践依据，为研究喷头的组合形式和移动轨迹作先期准备工作。

In the semi-fixed sprinkler irrigation experiment, the hydraulic power and assemble of the sprinkler head ZY-2 were studied. The results showed that when the work pressure of sprinkler head was 29.8m and the amount of sprinkling water was 2.79m 3/h, the united sprinkler irrigation strength was 0.167mm/min, and the strike strength of sprinkler drops was 2.8mm and the index of assemble evenness was 0.858 at the largest sprinkler water area where it was 16.5m far from the sprinkler head, which accorded with the field sprinkler irrigation standards. It is a basis on sprinkler irrigation utilization in different stage of different crops. The results will provide the theoretical and practical basis for the sprinkler irrigation research in the crop production.