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Design considerations for stationary hoods used with fixed-cone valves

机译：固定锥阀用固定式抽油烟机的设计注意事项

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摘要

Fixed-cone valves, also known as Howell-Bunger valves, are devices often used to dissipate energy from flow discharged at dams with medium to high heads. If the hood is not precisely placed, a phenomenon known as backsplash will occur. In low temperatures, backsplash can freeze around the valve, which could affect its operation. This paper discusses installation requirements and guidelines for fixed stationary hoods with baffles to prevent backsplash.
机译：固定锥阀，也称为Howell-Bunger阀，是通常用于消散从中压头到高压头的大坝排出的水流能量的装置。如果遮光罩放置不正确，则会发生称为后溅的现象。在低温下，反溅会在阀门周围结冰，从而影响其操作。本文讨论了带挡板的固定式固定通风橱的安装要求和指南，以防止后溅。

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  • 来源
    《International Journal on Hydropower & Dams》 |2014年第6期|76-79|共4页
  • 作者

    B.J. Prettyman; M.C. Johnson; Z.B. Sharp;

  • 作者单位

    Utah Water Research Laboratory, USA, Utah State University, College of Engineering, 8200 Old Main Hill, Logan, UT 84322-8200, USA;

    Utah Water Research Laboratory, USA, Utah State University, College of Engineering, 8200 Old Main Hill, Logan, UT 84322-8200, USA;

    Utah Water Research Laboratory, USA, Utah State University, College of Engineering, 8200 Old Main Hill, Logan, UT 84322-8200, USA;

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