节能保质的卷盘式喷灌机双喷枪技术

针对卷盘式喷灌机搭载单喷枪灌溉所需工作压力较高的问题，文中提出使用双喷枪组合灌溉，并对双喷枪与单喷枪在不同工作压力下的移动喷洒水量分布开展试验，对比分析2种喷枪在不同轮灌组合间距下的灌水均匀度.结果表明，双、单喷枪工作压力分别为0.10和0.25 MPa时，其喷洒幅宽分别为45.08和45.60 m, 2种喷枪以1.5倍喷头车喷洒半径组合轮灌时，组合均匀度分别为81.72%和80.36%,喷洒效果基本相同.运用等效年值法，对2种喷枪的初始投资、能耗费和年运行费进行对比发现，此工况下，双喷枪的初始投资、能耗费和年运行费分别为27.45,77.58和105.04元/hm²,单喷枪分别为12.95,193.96和206.91元/hm²,双喷枪初始投资虽略有增加，但能耗费和年运行费较单喷枪分别减小了60.00%和49.23%.因此，使用双喷枪喷洒可在保证喷洒质量的同时，降低工作压力、能耗费和年运行费.

Double spray guns technology of energy saving and quality guaranteed hard hose traveler

In order to solve the problem of high working pressure required for single-gun irrigation on reel-type sprinkler irrigation machines, double spray guns for combined irrigation was proposed to use. Experiments were carried out on the mobile spraying water distribution of double and single spray guns under different working pressures to compare and analyze the irrigation uniformity of the two spray guns under different round irrigation combinations. The results show that when the wor-king pressures of double and single spray guns are 0.10 and 0.25 MPa, the spraying widths are 45.08 and 45.60 m, respectively. When the two spray guns are combined with 1.5 times the spraying radius of the nozzle car, the combined uniformity is 81.72 and 80.36%, respectively, and the spraying effect is basically the same. Using the equivalent annual value method to compare the initial investment, energy consumption and annual operating costs of the two spray guns, it is found that under this working condition, the initial investment, energy consumption and annual operating costs of double spray guns are 27.45, 77.58 and 105.04 yuan/hm² respectively, those of single spray guns are 12.95, 193.96 and 206.91 yuan/hm². Although the initial investment of double spray guns has increased slightly, its energy consumption and annual opera-ting costs are reduced by 60.00% and 49.23% respectively compared with single spray guns. Therefore, spraying with double spray guns can reduce working pressure, energy consumption and annual operating costs while ensuring the quality of spraying.