Layered flip collision energy dissipation device for spillway and design method

Abstract

The invention discloses a spillway layered flip collision energy dissipation device and a design method, and belongs to the technical field of tailing ponds, a layered spillway box is mounted at one end of a spillway, a limiting frame is mounted on one side in the layered spillway box, and the spillway comprises a resistance increasing and pressure reducing block and a raising bent structure; resistance-increasing and pressure-reducing blocks are distributed on the spillway, and a lifting bent structure is installed at the bent position of the outer end of the spillway in a telescopic mode. Through opening and closing of the lower drainage plate and the upper drainage plate which are symmetrical, the rapid drainage and flow division functions are achieved; the lifting bent structure on the spillway is an adjustable structure and can be used for adjusting the flow lifting height; and the resistance-increasing and pressure-reducing blocks on the spillway have the resistance-increasing and pressure-reducing functions, so that the service life of the equipment is prolonged.

Description

Technical Field

[0001] The invention relates to a diversion flow collision energy dissipation device, in particular to a spillway layered diversion flow collision energy dissipation device, and belongs to the technical field of water conservancy engineering and mine tailings pond. Background Art

[0002] In water conservancy and hydropower projects, curved terrain is particularly suitable for the layout of local material dams and spillways. For example, a local material dam is arranged at the top of the curve, and a spillway is arranged on the inside of the curve. This can make full use of the terrain conditions, reasonably arrange hydraulic structures, and save project investment. However, the spillway outlet arranged in the curved terrain usually forms a large angle with the downstream main river channel, and the water flow often has difficulty entering the downstream river channel smoothly, which can easily cause scouring of the riverbed and the opposite bank slope. How to reduce the scouring of the downstream water flow on the slope of the energy dissipation area and the downstream riverbed, and at the same time promote the smooth entry of the water flow into the downstream river channel, requires optimization research on the structure layout and type of the spillway outlet flow channel.

[0003] For example, the application number: 201821634378.7 discloses an arch dam spillway diversion energy dissipation structure, which includes a left side pier and a right side pier, a plurality of middle piers are arranged between the left side pier and the right side pier, the left side pier and / or the right side pier are provided with a corner, and overflow weirs are arranged between the left side pier and the middle pier, between the plurality of middle piers, and between the right side pier and the middle pier. It can be applied to the field of diversion energy dissipation of water conservancy and hydropower projects, improve energy dissipation efficiency, reduce scouring of the slopes on both sides, reduce the depth of scouring pits, and ensure the safety and stability of the dam body.

[0004] However, there are still some shortcomings in this patent. Although this patent can lead out water flow, it can be seen from the attached drawings of this patent that this patent cannot adjust the amount of drainage when in use, and it cannot overflow in layers, resulting in the inability to regulate according to the amount of water, and the practicality is poor. Therefore, those skilled in the art provide a spillway layered flow collision energy dissipation device to solve the problems raised in the above background technology. Summary of the invention

[0005] The main purpose of the invention is to provide a spillway layered adjustable diversion flow collision energy dissipation device.

[0006] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0007] A spillway layered flow collision energy dissipation device, comprising a spillway for diversion;

[0008] A layered spillway box is installed at one end of the spillway, a limited space frame is installed on one side of the layered spillway box, and a spillway including a resistance-increasing and pressure-reducing block and a raised curved structure is installed on the spillway;

[0009] Resistance-increasing and pressure-reducing blocks are distributed on the spillway, and a raised curved structure is telescopically installed at the outer bend of the spillway.

[0010] Preferably, the layered spillway box includes a layered partition, a lower drainage plate, an upper drainage plate, a top plate and;

[0011] The stratified spillway box is provided with stratified partitions, the upper and lower sides of the stratified partitions are provided with lower drainage plates and upper drainage plates respectively, the inner side of the stratified spillway box is provided with lower drainage plates and upper drainage plates respectively sleeved thereon, and a top plate is installed on the top of the stratified spillway box.

[0012] Preferably, the limiting frame in the layered spillway box includes a lifting opening and closing member, a spillway opening and closing plate, an opening and closing channel and;

[0013] An opening and closing way is installed on the inner side of the layered spillway box, a spillway opening and closing plate is installed on the inner side, and a lifting opening and closing piece is installed on the outer end of the spillway opening and closing plate.

[0014] Preferably, the spillway opening and closing plate and are an integrated structure, and the spillway opening and closing plate and are lifted and lowered along the opening and closing path.

[0015] Preferably, the lower guide plate and the upper guide plate are opened and closed to divert the flow.

[0016] Preferably, the lower guide plate and the upper guide plate swing along.

[0017] Preferably, the spillway is an inclined structure, and the spillway fits tightly against the ground of the dam.

[0018] Preferably, the outer end of the spillway is an arc-shaped structure, and the raised curved structure at the outer end of the spillway is an extended structure.

[0019] A spillway stratified flow collision energy dissipation device, including the steps of a design method of the energy dissipation device:

[0020] Step 1: The flood is drained downward through the spillway. During the drainage process, the resistance is increased by increasing the resistance and reducing the pressure, so as to reduce the pressure at the bend at the bottom of the spillway. When the pressure is low, the elevated curved structure can be retracted. When the water pressure is high, the elevated curved structure can be extended to increase the height, so as to increase the atomization of the water flow and the amount of air.

[0021] Step 2: Connect the lifting parts (hoisting parts and driving parts) with the lifting and closing parts, raise the spillway opening and closing plates by the lifting and closing parts, and divert the flood through the height of the spillway opening and closing plates. When the flood is large, all the layered spillway boxes can be opened.

[0022] Beneficial technical effects of the present invention:

[0023] The present invention provides a spillway stratified flow collision energy dissipation device,

[0024] 1- The present application has the function of rapid drainage and diversion through the opening and closing of the symmetrical lower drainage plate and the upper drainage plate;

[0025] 2-The height of the spillway can be adjusted by using an adjustable curved structure on the spillway;

[0026] 3- The resistance-increasing and pressure-reducing function is achieved through the resistance-increasing and pressure-reducing blocks on the spillway, thereby improving the life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a spillway stratified flow collision energy dissipation device and a design method according to a preferred embodiment of the present invention;

[0028] Figure 2 A partial top view of a preferred embodiment of a spillway layered flow collision energy dissipation device and design method according to the present invention;

[0029] Figure 3 A partial side sectional view of a preferred embodiment of a spillway stratified flow collision energy dissipation device and design method according to the present invention;

[0030] Figure 4 It is a partial schematic diagram of a preferred embodiment of a spillway layered flow collision energy dissipation device and design method according to the present invention;

[0031] Figure 5 It is an overall cross-sectional top view of a preferred embodiment of a spillway layered flow collision energy dissipation device and design method according to the present invention;

[0032] Figure 6 It is an overall sectional side view of a preferred embodiment of a spillway stratified diversion flow collision energy dissipation device and design method according to the present invention.

[0033] In the figure: 1. spillway; 101. resistance-increasing and pressure-reducing block; 102. elevated curved structure; 2. layered spillway box; 201. layered partition; 202. lower drainage plate; 203. upper drainage plate; 204. top plate; 3. limit frame; 301. lifting opening and closing piece; 302. spillway opening and closing plate; 303. opening and closing way. DETAILED DESCRIPTION

[0034] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0035] like Figure 1 - Figure 6 As shown, the present embodiment provides a spillway layered flow diversion collision energy dissipation device, comprising a spillway 1 for diversion;

[0036] A layered spillway box 2 is installed at one end of the spillway 1, a limited space frame 3 is installed on one side of the layered spillway box 2, and a resistance increasing and pressure reducing block 101 and a raised curved structure 102 are installed on the spillway 1;

[0037] Resistance increasing and pressure reducing blocks 101 are distributed on the spillway 1, and a raised curved structure 102 is telescopically installed at the outer end bend of the spillway 1.

[0038] The layered spillway box 2 includes a layered partition 201, a lower drainage plate 202, an upper drainage plate 203, and top plates 204 and 205;

[0039] A layered partition 201 is distributed in the layered spillway box 2, and a lower drain plate 202 and an upper drain plate 203 are respectively arranged on the upper and lower sides of the layered partition 201. 205 is distributed inside the layered spillway box 2, and the lower drain plate 202 and the upper drain plate 203 are respectively mounted on 205. A top plate 204 is installed on the top of the layered spillway box 2.

[0040] The limiting frame 3 in the layered spillway box 2 includes a lifting opening and closing member 301, a spillway opening and closing plate 302, and opening and closing channels 303 and 304;

[0041] An opening and closing channel 303 is installed inside the layered spillway box 2 , 304 is slidably installed inside the opening and closing channel 303 , a spillway opening and closing plate 302 is installed on 304 , and a lifting opening and closing member 301 is installed at the outer end of the spillway opening and closing plate 302 .

[0042] The spillway opening and closing plates 302 and 304 are an integrated structure, and the spillway opening and closing plates 302 and 304 are raised and lowered along the opening and closing path 303 .

[0043] The lower guide plate 202 and the upper guide plate 203 open and close to divert the flow.

[0044] The lower guide plate 202 and the upper guide plate 203 swing along 205 .

[0045] The spillway 1 is an inclined structure, and the spillway 1 is closely fitted to the ground of the dam.

[0046] The outer end of the spillway 1 is an arc-shaped structure, and the raised curved structure 102 at the outer end of the spillway 1 is an extended structure.

[0047] like Figure 1 - Figure 6As shown, the working process of a spillway layered flow collision energy dissipation device provided in this embodiment is as follows: the flood is drained downward through the spillway 1, and during the drainage process, the resistance is increased by the resistance increasing and pressure reducing block 101 to reduce the pressure at the bend at the bottom of the spillway 1. When the pressure is small, the elevated curved structure 102 can be retracted, and when the water pressure is high, the elevated curved structure 102 can be extended to be raised, the water flow is raised, the atomization treatment of the water flow is increased, and the amount of air is increased;

[0048] Connect lifting parts such as (hoisting parts and driving parts) to the lifting opening and closing parts 301, and raise the spillway opening and closing plate 302 by lifting the lifting opening and closing parts 301. The flood can be diverted and led out through the height of the spillway opening and closing plate 302. When the flood is large, all the layered spillway boxes 2 can be opened.

[0049] Embodiment 1

[0050] like Figure 4 - Figure 6 As shown, resistance-increasing and pressure-reducing blocks 101 are distributed on the outside of the spillway 1, and a liftable elevated curved structure 102 is installed on the outer end of the spillway 1;

[0051] The flood is drained downward through the spillway 1. During the drainage process, the resistance is increased by the resistance-increasing and pressure-reducing blocks 101 to reduce the pressure at the bend at the bottom of the spillway 1. When the pressure is low, the elevated curved structure 102 can be retracted. When the water pressure is high, the elevated curved structure 102 can be extended to be raised, thereby raising the water flow, increasing the atomization of the water flow, and increasing the amount of air.

[0052] Embodiment 2

[0053] like Figure 1 - Figure 3 As shown, the stratified spillway box 2 is installed with stratified partitions 201 in sections, 205 is distributed in the stratified spillway box 2, and the 205 is sleeved with a lower drainage plate 202 and an upper drainage plate 203 that swing open and close, a limited position frame 3 is installed outside the stratified spillway box 2, a stratified spillway box 2 is installed in the stratified spillway box 2, a spillway opening and closing plate 302 is slidably installed in the stratified spillway box 2, and a lifting opening and closing piece 301 is installed at the outer end of the spillway opening and closing plate 302;

[0054] Connect lifting parts such as hoisting parts and driving parts to the lifting opening and closing parts 301, and raise the spillway opening and closing plate 302 by lifting the lifting opening and closing parts 301. The flood can be diverted and led out through the height of the spillway opening and closing plate 302. When the flood is large, the layered spillway boxes 2 can be fully opened.

[0055] The above description is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the scope disclosed by the present invention, which belong to the protection scope of the present invention.

Claims

1. A spillway stratified flow collision energy dissipation device, comprising a spillway (1) for diversion; Features: A layered spillway box (2) is installed at one end of the spillway (1), a limit frame (3) is installed on one side of the layered spillway box (2), and the spillway (1) includes a resistance increasing and pressure reducing block (101) and a raised curved structure (102); Resistance increasing and pressure reducing blocks (101) are distributed on the spillway (1), and a raised curved structure (102) is telescopically installed at the outer end bend of the spillway (1).

2. A spillway stratified flow collision energy dissipation device according to claim 1, characterized in that: The layered spillway box (2) includes a layered partition member (201), a lower drainage plate (202), an upper drainage plate (203), a top plate (204) and (205); A layered partition (201) is distributed inside the layered spillway box (2), and a lower guide plate (202) and an upper guide plate (203) are respectively provided on the upper and lower sides of the layered partition (201). (205) is distributed inside the layered spillway box (2), and the lower guide plate (202) and the upper guide plate (203) are respectively sleeved on (205). A top plate (204) is installed on the top of the layered spillway box (2).

3. A spillway stratified flow collision energy dissipation device according to claim 2, characterized in that: The limiting frame (3) in the layered spillway box (2) includes a lifting opening and closing member (301), a spillway opening and closing plate (302), an opening and closing channel (303) and (304); An opening and closing channel (303) is installed on the inner side of the layered spillway box (2), a (304) is slidably installed on the opening and closing channel (303), a spillway opening and closing plate (302) is installed on (304), and a lifting opening and closing member (301) is installed on the outer end of the spillway opening and closing plate (302).

4. A spillway stratified flow collision energy dissipation device according to claim 3, characterized in that: The spillway opening and closing plates (302) and (304) are an integrated structure, and the spillway opening and closing plates (302) and (304) are raised and lowered along the opening and closing path (303).

5. A spillway stratified flow collision energy dissipation device according to claim 4, characterized in that: The lower guide plate (202) and the upper guide plate (203) are opened and closed to separate the flows.

6. A spillway stratified flow collision energy dissipation device according to claim 5, characterized in that: The lower guide plate (202) and the upper guide plate (203) swing along (205).

7. A spillway stratified flow collision energy dissipation device according to claim 6, characterized in that: The spillway (1) is an inclined structure, and the spillway (1) is closely fitted to the ground of the dam.

8. The spillway stratified flow collision energy dissipation device according to claim 7, characterized in that: The outer end of the spillway (1) is an arc-shaped structure, and the raised curved structure (102) at the outer end of the spillway (1) is an extended structure.

9. A spillway stratified flow collision energy dissipation device according to claim 8, characterized in that: It also includes the steps of the design method of the energy dissipation device: Step 1: The flood is drained downward through the spillway (1). During the drainage process, the resistance is increased by the resistance increasing and pressure reducing block (101) to reduce the pressure at the bend at the bottom of the spillway (1). When the pressure is low, the raised curved structure (102) can be retracted. When the water pressure is high, the raised curved structure (102) can be extended to increase the height, thereby raising the water flow, increasing the atomization of the water flow and increasing the amount of air. Step 2: Connect the lifting member (hoisting member and driving member) to the lifting opening and closing member (301), and raise the spillway opening and closing plate (302) by the lifting opening and closing member (301), so as to divert and guide the flood water out through the height of the spillway opening and closing plate (302). When the flood water is large, all the stratified spillway boxes (2) can be opened.

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