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Relay type energy dissipation diversion device and curved spillway diversion array construction method

A technology of diversion device and construction method, which is applied in water conservancy projects, sea area projects, coastline protection, etc., and can solve problems such as uneven lateral distribution of downstream stilling pool inflow, uneven lateral distribution of water flow, and high water level on the outer bank of the bend section , to achieve the effect of small engineering quantity, good flow state and uniform flow velocity lateral distribution

Pending Publication Date: 2020-11-13
深圳市广汇源水利建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Part of the spillway has been built. Due to the limitation of terrain, terrain and site layout, part or all of the spillway section of the spillway project adopts a curved design. Because the radius of the curved section of the spillway is small and the angle is large, the discharge flow of the spillway during the flood is in the steep groove. The turbulent flow intensity in the bend section is high, the main flow is located on the outer bank, the lateral distribution of water flow is uneven, the water level on the outer bank of the bend section is obviously high, the middle part and the inner bank have little or no flow, and the inflow of the downstream stilling pool is also distributed horizontally. Uneven, obvious vortex and backflow in the stilling pool, poor flow state

Method used

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  • Relay type energy dissipation diversion device and curved spillway diversion array construction method
  • Relay type energy dissipation diversion device and curved spillway diversion array construction method
  • Relay type energy dissipation diversion device and curved spillway diversion array construction method

Examples

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Effect test

Embodiment 1

[0039] An energy dissipation guide device, such as Figure 1-3 As shown, it includes a diversion body 1 and a diversion head 2 , one end of the diversion head 2 is connected to the diversion body 1 .

[0040] The guide body 1 includes a first side plate 11 and a second side plate oppositely arranged, a first top plate 12 provided on the first side plate 11 and the second side plate, a first top plate 12 provided on the first side plate 11 and the second side plate The side plates are away from the rear cover plate 13 on one side of the head, and the first side plate 11 and the second side plate are vertically arranged.

[0041] The guide head 2 includes a vertically arranged first head side plate 21 and a second head side plate and a second top plate 22 arranged on the first head side plate 21 and the second head side plate, The end of the first head side plate 21 away from the flow guide body 1 and the end of the second head side plate away from the flow guide body 1 are clo...

Embodiment 2

[0049] A construction method for a curved spillway diversion array, such as Figure 4 As shown, it includes the following steps:

[0050] Step 1. Measure the specifications and dimensions of the spillway, including the width of the spillway, the height of the side walls, and the radius and angle of the spillway bend, determine the starting point, end point, and length of the bend, and divide the bend spillway into several sections: the upstream initial section, the middle section The curved section and the downstream section, in this embodiment, the upstream initial section has two sections, the curved section has one section, and the downstream section is divided into five sections, a total of eight groups;

[0051] Step 2. Determine the distribution of the diversion devices in the spillway, divide the forty diversion devices into eight groups, and every five diversion devices form a group, and there are 1 to 8 groups from the beginning of the bend to the downstream, and divi...

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Abstract

The invention relates to the technical field of spillway curved section diversion, in particular to a relay type energy dissipation diversion device and curved spillway diversion array construction method. The curved spillway diversion array construction method comprises the following steps: step 1, measuring the specification and dimension of a spillway, and dividing the curved spillway into plurality sections of upstream initial sections, middle curved sections and downstream sections; and step 2, determining the distribution of the diversion device in the spillway, and setting the diversiondevice along the edge direction of the spillway, so that the diversion head of the diversion device faces the upstream initial section, the diversion body of the diversion device faces the downstreamsection, and the diversion head of the diversion device deflects to the outside of the spillway and forms an angle of 5-10 degrees with the central axis of the spillway. By means of the invention, the horizontal distribution of the discharge flow and flow velocity of the curved section of the spillway, the downstream direct flow section and the stilling pool section can be more uniform, the clockwise and counterclockwise swirling water flow in the stilling pool can be eliminated, the flow state in the stilling pool is better, and a good rectification homogenization effect can be achieved.

Description

technical field [0001] The invention relates to the technical field of flow diversion in a curved section of a spillway, in particular to a relay type energy dissipation and flow diversion device and a construction method for a curved spillway flow diversion array. Background technique [0002] Part of the spillway has been built. Due to the limitation of terrain, terrain and site layout, part or all of the spillway section of the spillway project adopts a curved design. Because the radius of the curved section of the spillway is small and the angle is large, the discharge flow of the spillway during the flood is in the steep groove. The turbulent flow intensity in the bend section is high, the main flow is located on the outer bank, the lateral distribution of water flow is uneven, the water level on the outer bank of the bend section is obviously high, the middle part and the inner bank have little or no flow, and the inflow of the downstream stilling pool is also distribut...

Claims

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Application Information

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IPC IPC(8): E02B8/06E02B8/00
CPCE02B8/00E02B8/06
Inventor 姜晓天李俊萱庄紫龙钟玉娇梁其宇赵德海朱云鸿吴燕珊
Owner 深圳市广汇源水利建筑工程有限公司
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