Conveyer way of self-discharging sand
A self-sand and corridor technology, applied in the field of debris, can solve the problems of easy displacement and deformation of the deflector, easy generation of vertical axis vortex, low maintenance and management costs, etc., to improve the sand-carrying capacity and sand-discharging efficiency High, low-impact effects
Inactive Publication Date: 2009-05-27
谭培根 +2
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the disadvantages of the unreasonable equipment structure in the above-mentioned background technology, which cause the deflector to be easily displaced and deformed, and the vertical axis vortex to be easily generated. , made a breakthrough in the structure, so as to provide the invention technology of the self-sand-draining corridor to achieve the following goals: strong sand-carrying ability, so that the water flow of different movement forms is coupled into a high-intensity three-dimensional double-helical flow; anti-clogging; sand-discharging control The (influence) range is large. Under the same sand discharge flow conditions, the control (influence) range can be expanded by 20 times; small drop sand discharge; adapt to large changes in water level outside the sand discharge outlet; strong adaptability to sand discharge terrain, small size, and great impact on the main body The impact of the project is small, it does not occupy a special site, does not consume the head energy of the main project, and has no special requirements for the flow, water depth, flow velocity, and flow direction of the water flow of the main project. When the water depth is above 0.9m, harmful sediment can be removed; dialysis drainage Sand can be "coarse and fine" or "coarse and fine" for sediment; the range of flow that can be processed is not limited, and it can adapt to a wide range of water and sediment changes; continuous water supply, intermittent sand discharge; less water consumption; construction and maintenance Low management cost and high cost performance
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[0060] Below in conjunction with accompanying drawing and embodiment the present invention is further described:
[0061] see figure 1 , there is movable cover plate 4 above corridor 1, and row increases sand cap 2 and is positioned at the top of cover plate 4 center line side.
[0062] see figure 2 , the corridor 1 is composed of a U-shaped canal 6 with a U-shaped cross section and a cover plate 4, and the cover plate 4 has an increased rotation sand discharge hole 5 inclined to the water flow direction (pointed by the arrow), corresponding to the increased rotation sand discharge hole 5 The upper surface of the cover plate 4 is fixed with a self-discharging mechanism, and the angle between the center line of the inclined increased-rotation sand-discharging hole 5 and the direction of water flow is α. Cone-shaped sediment 12 is naturally formed between the three self-discharging mechanisms, the top of the cone is point L, and the cone angle is β. Most of the flowing water...
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The present invention relates to a self-desilting gallery, belonging to the field of water utilization and hydroelectric technology. Said self-desilting gallery is formed from gallery and self-desilting mechanisms which are distributed on the gallery, the distribution of said self-desilting mechanisms on the gallery is formed into the alternative net form. Said gallery is formed from U-shaped channel and cover plate, on the cover plate several sand outlets inclined towards water flow direction are set.
Description
1. Technical field [0001] The invention relates to the technical field of removing coarse sediment and other sundries in water conservancy and hydropower projects, and specifically refers to a self-discharging sand corridor. 2. Background technology [0002] At present, the irrigated area of the Yellow River Basin is 7.1334 million hm 2 , there are 84,000 large and medium-sized reservoirs nationwide, with a total storage capacity of more than 450 billion m 3 , the serious sediment problem is bothering and threatening the survival and development of many water conservancy facilities. Sediment has become a key problem to be solved in the Yellow River Basin and my country's water resources construction. How to remove sediment in water conservancy and hydropower projects has become an urgent problem to be solved. The existing sediment discharge facilities mainly increase the amount of sediment discharge by increasing the water flow velocity and the amount of sediment discharg...
Claims
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IPC IPC(8): E02B8/02E02B3/02E02B9/00
CPCY02E10/22Y02E10/20Y02P70/50
Inventor 谭培根王彩绒谭振龙
Owner 谭培根