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摘要
In this article, a new type of variable-rate complete fluidic sprinkler is proposed This sprinkler system was designed to achieve a variable wetted radius of the spray by moving two inserts relative to each other to change the inlet cross-sectional area. To determine the design method, the relationship between the pressure, the inlet cross-sectional area, and the rotating angle were analyzed by MATLAB for a square spray, the working pressure of the variable-rate sprinkler system spray in an irregular boundary area was calculated, and the relationship of the pressure values was obtained The experiments were carried out using an automatic measurement system, and the wetted radius deviation, uniformity coefficient, wetted radius reduction coefficient and shape coefficient were calculated The results showed that the experimental square wetted radius agreed well with the theoretical curves, and the deviation was 4.22%. The irrigation water distribution data were uniform at every spraying angle. The uniformity coefficient of the complete fluidic sprinkler system was 72.2%, which is larger than an impact sprinkler system. The decreased coefficient was 21.48%, and the shape coefficient was 91.7%. As a result, a square spray pattern was achieved using the variable-rate complete fluidic sprinkler system.
- 出版日期2013-1
- 单位江苏大学
