On a Method of Uniformalizing Pressures by Orifices at Each Sprinkler Nozzle

DOI

Bibliographic Information

Other Title
  • 多目的スプリンクラ配管施設のための安価な均圧化の工法

Description

In orchards and tea-gardens, sprinkler systems have been installed for applying rather agricultural chemicals and fertilizers than irrigation water. In future they may be used to apply herbicides, fruit ripeners, and chemicals for picking excessive flowers or fruits.<br>Uniformity of application, which is specially required in applying these chemicals, is affected by variations among discharges of the individual sprinklers. Using pressure regulators or flow controllers on the sprinkler nozzles, the variations are made even. But it cost the farmer as high as the price of the sprinkler nozzles.<br>For saving the equipment cost, we contrived the method to uniformalize the pressure at a nozzle by a orifice that fitted in each applying point. The optimum orifices were selected experimentally from measuring the primary pressures of pressure regulators and from pressure drop diagrams of the orifices Fig. 5 or Fig. 6.

Journal

Details 詳細情報について

  • CRID
    1390282679329294720
  • NII Article ID
    130004280305
  • DOI
    10.11449/sasj1971.8.27
  • ISSN
    21860122
    03888517
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

Report a problem

Back to top