Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Side wall impact rebound low-pressure area sudden expansion and sudden falling radial gate aeration structure
The invention discloses a side wall impact rebound low-pressure area sudden expansion and sudden falling radial gate aeration structure. The radial gate aeration structure comprises a radial gate, a side wall, a bottom plate, vent holes, a primary sudden expansion and sudden falling water stop structure and a secondary sudden expansion and sudden falling aeration structure. The radial gate is transversely arranged on the side wall, the bottom plate is located at the bottom end of the side wall, the vent holes are located in the downstream of the radial gate and communicate with a cavity area in the top of downstream flood-discharged water flow, the primary sudden expansion and sudden falling water stop structure is located at the upstream of the radial gate, and the secondary sudden expansion and sudden falling aeration structure is located at the junction of a downstream water flow impact area and a low-pressure area. According to the radial gate aeration structure provided by the invention, the side wall is subjected to secondary sudden expansion at the low-pressure area to form a longer side aeration cavity, so that the water flow in the original low-pressure area is not attached to the side wall any more, the starting point of cavitation damage is located in the low-pressure area, and when the water flow is not attached to the side wall any more, the side wall cannot be subjected to cavitation damage even if the water flow is subjected to cavitation. The gate can safely operate under various opening degrees, and the operation of the gate is not limited any more.
本发明公开了一种侧墙冲击反弹低压区突扩突跌的弧形闸门掺气结构，包括弧形闸门、边墙、底板、通气孔、一次突扩突跌止水结构和二次突扩突跌掺气结构；弧形闸门横置在边墙上，底板位于边墙底端，通气孔位于弧形闸门下游且连通下游泄洪后水流顶部的空腔区域，一次突扩突跌止水结构位于弧形闸门上游，二次突扩突跌掺气结构位于通气孔下游水流冲击区与低压区的交界处。本发明提供的弧形闸门掺气结构，侧墙在低压区二次突扩，形成一个较长的侧掺气空腔，使原来低压区的水流不再贴着侧墙，空化空蚀破坏的起点位于低压区，当水流不再贴着侧墙时，即使水流发生空化，侧墙也不会发生空蚀破坏；闸门在各种开度下均可安全运行，闸门的运行不再受限制。
Side wall impact rebound low-pressure area sudden expansion and sudden falling radial gate aeration structure
The invention discloses a side wall impact rebound low-pressure area sudden expansion and sudden falling radial gate aeration structure. The radial gate aeration structure comprises a radial gate, a side wall, a bottom plate, vent holes, a primary sudden expansion and sudden falling water stop structure and a secondary sudden expansion and sudden falling aeration structure. The radial gate is transversely arranged on the side wall, the bottom plate is located at the bottom end of the side wall, the vent holes are located in the downstream of the radial gate and communicate with a cavity area in the top of downstream flood-discharged water flow, the primary sudden expansion and sudden falling water stop structure is located at the upstream of the radial gate, and the secondary sudden expansion and sudden falling aeration structure is located at the junction of a downstream water flow impact area and a low-pressure area. According to the radial gate aeration structure provided by the invention, the side wall is subjected to secondary sudden expansion at the low-pressure area to form a longer side aeration cavity, so that the water flow in the original low-pressure area is not attached to the side wall any more, the starting point of cavitation damage is located in the low-pressure area, and when the water flow is not attached to the side wall any more, the side wall cannot be subjected to cavitation damage even if the water flow is subjected to cavitation. The gate can safely operate under various opening degrees, and the operation of the gate is not limited any more.
本发明公开了一种侧墙冲击反弹低压区突扩突跌的弧形闸门掺气结构，包括弧形闸门、边墙、底板、通气孔、一次突扩突跌止水结构和二次突扩突跌掺气结构；弧形闸门横置在边墙上，底板位于边墙底端，通气孔位于弧形闸门下游且连通下游泄洪后水流顶部的空腔区域，一次突扩突跌止水结构位于弧形闸门上游，二次突扩突跌掺气结构位于通气孔下游水流冲击区与低压区的交界处。本发明提供的弧形闸门掺气结构，侧墙在低压区二次突扩，形成一个较长的侧掺气空腔，使原来低压区的水流不再贴着侧墙，空化空蚀破坏的起点位于低压区，当水流不再贴着侧墙时，即使水流发生空化，侧墙也不会发生空蚀破坏；闸门在各种开度下均可安全运行，闸门的运行不再受限制。
Side wall impact rebound low-pressure area sudden expansion and sudden falling radial gate aeration structure
一种侧墙冲击反弹低压区突扩突跌的弧形闸门掺气结构
DENG JUN (Autor:in) / WANG ZHENG (Autor:in) / SONG LIAOCHAO (Autor:in) / TIAN ZHONG (Autor:in) / ZHANG FAXING (Autor:in) / WEI WANGRU (Autor:in) / WANG YAMENG (Autor:in) / GONG JING (Autor:in) / XU WEILIN (Autor:in) / LIU SHANJUN (Autor:in)
03.11.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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