【摘要】 微喷头出水口流道形式直接影响其水力性能与工作性能,针对可调式微喷头(GL-8-16)3种改进的出水口流道形式试验,分析了不同压力下的微喷头的微喷灌质量指标。结果表明:3种改进形式的微喷头水力性能均得到不同程度的提高。其中,引流连续水平面形式效果最好,其工作性能稳定,喷灌强度降低了17.0%～31.2%,均匀系数提高到24.45%～35.04%,射程增大了22.04%～21.47%。更多还原

【Abstract】 The performances are directly influenced by the type of micro-sprinkler outlet flow channel. Aiming at the experiment of three improved types of micro-sprinkler flow channel outlets, the quality indices of micro-sprinkler irrigation were analyzed under different pressures. Results showed that theperformances were improved for all improved types. The performance of the continuous-horizontal-level type of outlet flow channel type is the best with high stability, and the micro-sprinkler intensity decreasesing by （17.0%～31.2%）, theuniformity of water distribution rises to （24.45%）^35.04%, the micro-sprinkling pattern radius increases by 22.04%²1.47%.更多还原