Automatic sediment division and ejection structure with headwork annular irregular section

A technology with special-shaped cross-sections and structures, which is applied in river regulation and other directions, and can solve the problems of large floor area of ​​grit chambers, strict water flow requirements, and slow filtration.
CN107975010AInactive Publication Date: 2018-05-01ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER
Publication Date
2018-05-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an automatic sediment division and ejection structure with a headwork annular irregular section. The automatic sediment division and ejection structure is composed of a rectangular section, a water inlet, a connecting section, an irregular section, a top plate, an outside plate, an inside plate, a base plate, a sediment collection slot, a trapezoidal section, a sediment discard section I, a sediment discard port, a major diameter vertical barrel, a barrel top cap, a barrel bottom plate, a sediment discard section II, an output section, a diversion canal and a communication pore. The automatic sediment division and ejection structure with the headwork annular irregular section is used for sediment division, large space is not required for sedimentation, and the clearing and transport of sediment are not required; water flow with high sediment concentration can be automatically returned to an original river channel in the sediment division process, and the site, manpower and cost are saved; the sediment ejection effect is good; and the structure can also be buried underground under the proper conditions, so that a ground position is not occupied.
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Description

Technical field

[0001] The invention belongs to the technical field of water conservancy engineering, and specifically is a canal head ring-shaped special-shaped cross-section automatic sand separation structure. Background technique

[0002] In most water diversion irrigation areas in northern China, sediment transport and its control have always been a difficult problem for people who design irrigation systems. The water diversion channels of these irrigation areas often have serious sedimentation; according to the statistics of the Yellow River irrigation areas from 1958 to 1990 In fact, 30.8% of the sediment in Henan Province is deposited in the diversion canal system, compared with 38.5% in Shandong Province. Under the current diversion engineering technology, it is difficult to transport all the sediment over long distances, and a large amount of sediment is deposited in the channel, which is serious. It affects the water delivery efficiency and normal operation of the irri...

Claims

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