针对滴灌系统滴头易堵建的问题,考虑到降低系统造价和保证系统流量等因素,作者研制了注塑的分级孔口消能器并提出了相应的分级原理。将其应用于果树等滴量系统,分级孔口消能设计毛管长度较采用管式滴头传统方法设计比,在单株树供水流量相等的情况下长50％左右,能明显降低系统造价。 In view of the drip irrigation system is easy to plug the construction of the problem, taking into account to reduce system cost and ensure system flow and other factors, the author developed a graduated orifice injection of energy dissipater and put forward the corresponding classification principle. When applied to the drip irrigation system such as fruit trees, the capillary length of grading orifice energy dissipation design is more than the traditional method using tubular dripper, which is about 50% longer when the flow rate of single trees is equal, which can obviously reduce the system cost.