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对于一个好的喷头,既要求某机械性能好,即结构简单,工作可靠;又应要求其水力性好,也就是能满足喷灌的主要技术要求(喷灌强度小于土壤入渗率,水滴直径细和喷头组合以后的水量分布均匀),而且在同样工作压力和同样流量条件下射程最远。这些要求是互相矛盾,互相制约的。我们在设计和应用喷头时应全面考虑各方面的要求,不可片面追求某一指标而忽视其他技术要求,例如,我们不可只追求射程远,而不顾水滴直径和水量
For a good nozzle, both require a good mechanical properties, that is, simple structure, reliable work; also require good hydraulic power, that is, to meet the main technical requirements of sprinkler irrigation (sprinkler strength is less than the soil infiltration rate, droplet diameter fine and After the nozzle combination of water distribution), but also in the same working pressure and the same flow conditions, the farthest range. These requirements are mutually contradictory and mutually restrictive. When designing and applying sprinklers, we should fully consider all aspects of our requirements. We should not pursue a certain target without regard to other technical requirements. For example, we should not only pursue long-range distances, but also ignore the droplet diameter and water volume