Ring-shaped overflow weir with diversion piers
A technology of overflow weirs and diversion piers, which is applied in barrage/weirs, water conservancy projects, sea area projects, etc. It can solve problems such as large fluctuations in reservoir water surface, easy to generate swirl or water fins, and affect discharge capacity. Achieve the effects of improving the flow state of the weir crest, reducing water level fluctuations, and increasing discharge capacity
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[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0023] see Figure 1-3 , an annular overflow weir with a diversion pier, comprising: an annular overflow weir body 1 , a first diversion pier 2 , and a second diversion pier 3 . The ring-shaped overflow weir body is trumpet-shaped, wide at the top and narrow at the bottom. The inner surface is a curved surface formed by a 1 / 4 elliptical line rotating around the central axis of the ring-shaped overflow weir body 1. The outer surface is rotated by a 1:n oblique straight line. The slope surface (the curved surface in the form of the side surface of the cone), where n can be 0.2, 0.3, 0.4 and so on. The inner curved surface of the ring-shaped overflow weir body 1 is guaranteed to be smooth, and the construction of the elliptical curve surface must ensure good smoothness to reduce the negative pressure on the weir surface to the greatest extent. The inner end of ...
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