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Energy dissipater in wading engineering

An energy dissipator and engineering technology, applied in water conservancy engineering, marine engineering, coastline protection, etc., can solve problems such as affecting the safe operation of structures, losing energy dissipation effect, restricting application, etc., to avoid water hammer, reduce impact damage, avoid effect of deposition

Inactive Publication Date: 2012-11-21
SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing energy dissipators often only consider the energy dissipation of water flow, while ignoring the deposition of suspended solids in the energy dissipation section. Stilling well energy dissipators often require high-frequency manual or manual work in transportation systems with high sediment content. Mechanical dredging, otherwise the energy dissipation effect will be lost due to the deposition of suspended solids; although the stilling sill type energy dissipation device can play an energy dissipation effect, the gas mixed into the water flow cannot overflow in the energy dissipation section, but enters When the downstream structures are gradually released, the gas overflows the water body and forms a large number of air masses in the follow-up facilities, which is easy to form unfavorable hydraulic phenomena such as water hammer, which affects the safe operation of the structures
[0004] Due to the defects of traditional energy dissipators in various aspects, its application in downstream projects with non-open channel flow is limited.

Method used

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  • Energy dissipater in wading engineering
  • Energy dissipater in wading engineering
  • Energy dissipater in wading engineering

Examples

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Embodiment 1

[0024] Such as figure 1 As shown, a specific embodiment of the present invention is a kind of wading engineering energy dissipator, comprising a water pipeline 1 used as an upstream water delivery structure, a shaft 2 used as a drop structure, and a water retaining wall used as a flow control structure 3 and a drainage pipeline 4 used as a downstream water delivery structure; the water delivery pipeline 1 is connected to the drainage pipeline 4 through a vertical shaft 2; The downstream end is provided with a retaining wall 3 .

[0025] Such as figure 2 As shown, the water retaining wall 3 is composed of a plurality of slats arranged parallel to each other on the same plane. The slats 5 are erected horizontally in the drainage pipe 4, and water holes 6 are arranged between adjacent slats 5 to retain water. The space formed between the wall 3 and the end (equivalent to the stilling well) corresponds to the position below the connection between the vertical shaft 2 and the dr...

Embodiment 2

[0031] Such as image 3 As shown, another specific embodiment of a kind of wading engineering energy dissipation device of the present invention is basically the same as Embodiment 1, the difference is that the vertical shaft 2 is connected to the middle section of the drainage pipe 4, and the retaining wall has two sides , opposite to each other and arranged on the bottom of the drainage pipe, the space formed between the water retaining wall 3 and the drainage pipe 4 (equivalent to the stilling well) corresponds to the position below the connection between the vertical shaft 2 and the drainage pipe 4 .

[0032] Such as Figure 4 As shown, the slats of the retaining wall 3 are vertically arranged.

[0033] As other specific embodiments of the present invention, the upstream water conveyance structure, falling water structure, flow control structure and downstream water conveyance structure can all be adapted to other structures according to construction needs, such as direct...

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Abstract

The invention discloses an energy dissipater in wading engineering, comprising an upstream water delivery structure, a hydraulic drop structure, a flow control structure and a downstream water delivery structure. The upstream water delivery structure is connected with the downstream water delivery structure through the hydraulic drop structure; the protruding flow control structure is arranged at a downstream end of a connection section of the hydraulic drop structure and the downstream water delivery structure, and a number of limber holes are arranged on the flow control structure. The energy dissipater in the wading engineering provided by the invention is the energy dissipater which can realize a good energy dissipating effect and can avoid sediments silting up in a working section and enable gas mixed in water to smoothly overflow.

Description

technical field [0001] The invention relates to the technical field of energy dissipation facilities in water-wading engineering, in particular to an energy-dissipating device in water-wading engineering. Background technique [0002] In urban drainage and waterlogging prevention, water conservancy projects and related engineering fields, it is often necessary to carry out long-distance water delivery with large drops. It has a strong impact on the downstream structures. Therefore, in related projects, different forms of energy dissipators are used to dissipate the energy of the upstream water, so as to reduce the impact and damage of the downstream structures due to the impact of water flow. [0003] The existing types of energy dissipators include: bottom flow energy dissipator, deflecting flow energy dissipator, surface flow energy dissipator, bucket energy dissipator, along-way energy dissipator, free-fall energy dissipator, wide tail pier energy dissipator And the ener...

Claims

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Application Information

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IPC IPC(8): E02B8/06
Inventor 张善发贾仁勇
Owner SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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