スプリンクラの散水分布特性に関する研究（Ⅱ）

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タイトル別名
  • スプリンクラの散水分布特性に関する研究-2-
  • スプリンクラ ノ サンミズブンプ トクセイ ニ カンスル ケンキュウ 2
  • Studies on the Characteristics of Sprinkler Distribution Patterns (II)

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抄録

Making the simple model test of the full circle typed sprinkler, I found that the phenomenon of the high distribution parts took place at right angles to the main wind direction passing through the nozzle at the wind speed of about 2-3m/sec. In order to make this growth mechanism clear, I made a sprinkling test with a main nozzle which was the motive power of a sprinkler. Comparatively high distribution parts grew on both sides of the main wind direction passing through the nozzle at the wind speed of 1m/sec and a horseshoe-shaped equal distribution line appeared in the sprinkler distribution chart. Besides the dent was found to be divided into two parts at right angles to the main wind direction, with the increase of the wind speed. Considering the sprinkler distribution chart of the main and the sub nozzles, their influences from the wind were proved to be canceled each other. After all the wind was the main cause of the growth of the high distribution parts. In view of the nozzle the jet water of the main nozzle was most effected by the wind, and the important factor of the growth of the high distribution parts. Carrying out the sprinkling test of right angle range with the part circle typed sprinkler which has never been experimented yet and especially examine the influence of the wind, I could make its characteristic clear. Next I carried out the experiment of this sprinkler together with the full circle typed one and proved that it secured a pretty good charactor of equality even at the wind of 3m/sec as I mentioned above I studied the sprinkling characteristic of the sprinklers unlike in the quality of jet water and the type.

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