Dispersed ventilated aerator
An aerated sill and ventilation technology, applied in the field of aerated sills, can solve problems such as increased cost of drainage corridors
Active Publication Date: 2009-11-04
POWERCHINA ZHONGNAN ENG
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Problems solved by technology
Undoubtedly, the drainage corridor brings about the increase of cost
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[0018] Such as Figure 4 ~ Figure 7 As shown, the decentralized ventilation pipes are arranged in the guide wall and the aeration sill of the drainage structure, located on the upstream side of the aeration sill, and are evenly arranged. One end of each aeration pipe is connected to the top of the guide wall, and the other end is connected to the downstream elevation of the aeration sill, and is evenly distributed along the aeration sill. The slope of the dispersed air duct can be horizontal or inclined to a gentle slope downstream. The downstream facade of the aeration sill is connected with the bottom plate of the drainage building.
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The invention relates to an aerator, in particular to a dispersed ventilated aerator used for high-velocity flow aerification. The aerator is internally provided with a plurality of independent dispersed venting pipelines, one end of each of the dispersed venting pipelines is communicated with the top of a guide wall, while the other end is communicated with a downstream facade of the aerator. The aerator is particularly suitable for the high-velocity flow aerification of an outlet structure on a slight bottom slope.
Description
Technical field [0001] The invention relates to an aeration ramp, in particular to a dispersed aeration aeration ramp for aeration of high-speed water flow. The invention is especially suitable for aeration of high-speed water flow in small bottom slope drainage structures. Background technique [0002] Under the action of high-speed water flow, the concrete surface of the discharge structure is prone to cavitation erosion. The development of cavitation erosion will cause the boundary of the water flow to separate and form a bad flow pattern, which may eventually bring fatal harm to the discharge structure. Cavitation damage occurs from time to time on discharge structures. [0003] At present, aeration facilities are often installed on high-speed water flow discharge structures, and the drag effect of the water flow on the aeration facilities is used to entrain air into the water body. Water flow aeration can effectively reduce cavitation damage. The basic shape of the aeration ...
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IPC IPC(8): E02B8/06
Inventor 戴晓兵李延农
Owner POWERCHINA ZHONGNAN ENG