CN210421029U - Energy dissipation structure for hydraulic engineering - Google Patents
Energy dissipation structure for hydraulic engineering Download PDFInfo
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- CN210421029U CN210421029U CN201920969041.XU CN201920969041U CN210421029U CN 210421029 U CN210421029 U CN 210421029U CN 201920969041 U CN201920969041 U CN 201920969041U CN 210421029 U CN210421029 U CN 210421029U
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Abstract
The utility model belongs to the technical field of hydraulic engineering energy dissipation, concretely relates to energy dissipation structure for hydraulic engineering, which comprises an energy dissipation box body, wherein the bottom of the energy dissipation box body is communicated with a water outlet pipe, the top of the energy dissipation box body is provided with a plurality of step-shaped water inlets, a first arc-shaped energy dissipation groove is arranged in the water inlet at the bottom, and a water outlet is arranged on the arc-shaped wall of the first arc-shaped energy dissipation groove; a circular truncated cone is arranged in the water inlet above the lowest water inlet, the bottom end of the circular truncated cone is fixedly connected with the inner wall of the water inlet, a second arc-shaped energy dissipation groove is arranged in the circular truncated cone, the bottom end of the second arc-shaped energy dissipation groove is connected with a buffer structure, and the bottom end of the buffer structure is fixedly connected to the bottom of the circular truncated cone through a connecting support rod; the water inlet bottom all is connected with the pipe of intaking, and the other end intercommunication of the pipe of intaking has the aqueduct, and the play water end of aqueduct is equipped with the hydraulic turbine, and the hydraulic turbine is connected with hydraulic generator, the utility model provides an energy dissipation structure energy dissipation is effectual and can utilize the water conservancy energy at the energy dissipation in-process.
Description
Technical Field
The utility model belongs to the technical field of the hydraulic engineering energy dissipation, concretely relates to improvement on hydraulic engineering energy dissipation structure.
Background
The water conservancy engineer collectively refers to projects (including new construction, extension, reconstruction, reinforcement and restoration) for flood control, waterlogging removal, irrigation, power generation, water supply, reclamation, water conservation and the like, and matching and auxiliary projects thereof. Used for controlling and allocating surface water and underground water in the nature to achieve the purposes of removing harm and benefiting. Also known as water engineering. Water is a valuable resource essential for human production and life, but its naturally occurring state does not completely meet the needs of human beings. Only when hydraulic engineering is built, water flow can be controlled, flood disasters are prevented, and water quantity is adjusted and distributed to meet the requirements of people on water resources in life and production. Energy dissipation is an engineering facility constructed by eliminating the redundant kinetic energy of the water discharge building or the downward flow of the drop building and preventing or reducing the scouring damage of water flow to the hydraulic building and the downstream canal thereof.
The energy dissipation effect of the hydraulic engineering energy dissipation structure in the prior art is poor, the fluctuation of the down-flow water flow is large, the energy dissipation structure in the prior art cannot collect and utilize water conservancy energy, and the practicability is poor. Therefore, in order to solve these problems, the utility model provides an energy dissipation structure for among hydraulic engineering.
Disclosure of Invention
The utility model aims at providing an energy dissipation structure for among hydraulic engineering that the energy dissipation is effectual and can utilize the water conservancy energy at the energy dissipation in-process.
In order to realize the purpose of the utility model, the utility model adopts the technical proposal that:
an energy dissipation structure for hydraulic engineering comprises an energy dissipation box body, wherein the side wall of the bottom of the energy dissipation box body is communicated with a plurality of water outlet pipes, a plurality of step-shaped water inlets are formed in the top of the energy dissipation box body, a first arc-shaped energy dissipation groove is formed in the water inlet at the lowest part, and a plurality of water outlets are formed in the arc-shaped wall of the first arc-shaped energy dissipation groove; a circular truncated cone is arranged in the water inlet above the lowest water inlet, the bottom end of the circular truncated cone is fixedly connected with the inner wall of the water inlet, a second arc-shaped energy dissipation groove is arranged in the circular truncated cone, the bottom end of the second arc-shaped energy dissipation groove is connected with a buffer structure, and the bottom end of the buffer structure is fixedly connected to the bottom of the circular truncated cone through a connecting support rod; the water inlet bottom all is connected with the water inlet pipe, and the other end of water inlet pipe communicates the aqueduct that has the slope to set up, and the delivery end of aqueduct is equipped with the hydraulic turbine, and the hydraulic turbine is connected with hydraulic generator.
Preferably, the diameter of the open end of the second arc-shaped energy dissipation groove is equal to the diameter of the top of the truncated cone.
Preferably, the buffer structure comprises a moving rod, a fixed cylinder is sleeved outside the moving rod, one end of the moving rod is fixedly connected with the bottom end of the second arc-shaped energy dissipation groove, the other end of the moving rod penetrates through the top of the fixed cylinder and then extends into the fixed cylinder, and the bottom of the fixed cylinder is fixedly connected with the connecting support rod; and a telescopic spring is connected between the bottom of the moving rod and the bottom of the fixed cylinder.
Preferably, the water turbine comprises a wheel disc, a plurality of water hoppers are uniformly fixed on the surface of the wheel disc along the circumferential direction of the wheel disc, and the center of the wheel disc is connected with the hydraulic generator through a rotating shaft; the water outlet end of the water guide pipe is opposite to the concave surface of the water bucket.
Preferably, the concave surface of the water bucket is uniformly provided with a plurality of convex ribs protruding upwards, a groove is formed between any two adjacent convex ribs by means of downward sinking, and the convex ribs and the groove are both in a semi-arc shape.
Preferably, a horizontal support rod is fixedly connected in the water outlet pipe, the horizontal support rod is arranged at the water inlet end of the water outlet pipe, a plurality of vertical support rods are uniformly arranged on the horizontal support rod, the other ends of the vertical support rods are suspended, a plurality of groups of energy dissipation plates are uniformly arranged on the vertical support rods along the length direction of the vertical support rods, and the lengths of the energy dissipation plates are sequentially increased from the water inlet end of the water outlet pipe to the water outlet end of the water outlet pipe; the upper surface of the energy dissipation plate is provided with a plurality of energy dissipation blocks uniformly.
The utility model discloses following beneficial effect has:
1. the utility model discloses in, energy dissipation box top sets up the water inlet of echelonment, sets up second arc energy dissipation groove in the water inlet, and when the rivers impact second arc energy dissipation groove in hydraulic engineering, second arc energy dissipation groove can produce a preliminary energy dissipation to rivers. Part of water flow impacting the second arc energy dissipation groove flows out through a gap between the second arc energy dissipation groove and the circular truncated cone, and part of water flow flows to the next second arc energy dissipation groove to carry out secondary energy dissipation; after multiple times, the water flows out through a water outlet on the first arc-shaped energy dissipation groove; therefore, the arrangement of the first arc-shaped energy dissipation groove and the second arc-shaped energy dissipation groove can play a role in primary energy dissipation on water flow in hydraulic engineering, and the water flow in the hydraulic engineering is prevented from scouring hydraulic buildings and downstream canals thereof to damage constructed engineering facilities.
2. In the utility model, the water flow passing through the first energy dissipation groove and the second energy dissipation groove enters the aqueduct through the water inlet guide pipe under the action of gravity and flows out of the water outlet end of the aqueduct, the water flow flowing out of the water outlet end of the aqueduct impacts the water bucket to drive the wheel disc to rotate, and the wheel disc rotates to drive the hydroelectric generator to generate electricity; consequently, the setting of this structure not only can carry out the energy dissipation once more to the rivers in the hydraulic engineering, can also utilize rivers to generate electricity in the energy dissipation, reaches the effect of make full use of the hydraulic energy.
3. In the utility model, the arrangement of the energy dissipation plate and the energy dissipation block in the water outlet pipe can further dissipate the energy of the water flow flowing out of the energy dissipation structure, further reduce the scouring of the water flow in the hydraulic engineering to the hydraulic building and the downstream canal thereof, and play a role in protecting the constructed engineering facilities; the energy dissipation effect is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a bucket;
FIG. 3 is a schematic structural view of the water outlet pipe;
the labels in the figure are: 1-energy dissipation box body; 2-water outlet pipe; 3-a water inlet; 4-a first arc energy dissipation groove; 5-water outlet; 6-a truncated cone; 7-a second arc energy dissipation groove; 8-connecting the supporting rod; 9-a water inlet conduit; 10-a water conduit; 11-a water turbine; 12-a water bucket; 13-a moving rod; 14-a fixed cylinder; 15-a telescopic spring; 16-a wheel disc; 17-a rib; 18-a groove; 19-horizontal support bar; 20-vertical support bars; 21-energy dissipation plate; 22-energy dissipation block.
Detailed Description
As shown in fig. 1-3, an energy dissipation structure for hydraulic engineering comprises an energy dissipation box body 1, wherein the side wall of the bottom of the energy dissipation box body 1 is communicated with a plurality of water outlet pipes 2, the top of the energy dissipation box body 1 is provided with a plurality of step-shaped water inlets 3, a first arc-shaped energy dissipation groove 4 is arranged in the water inlet 3 at the lowest part, and a plurality of water outlets 5 are arranged on the arc-shaped wall of the first arc-shaped energy dissipation groove 4; a circular truncated cone 6 is arranged in the water inlet 3 above the lowest water inlet 3, the bottom end of the circular truncated cone 6 is fixedly connected with the inner wall of the water inlet 3, a second arc-shaped energy dissipation groove 7 is arranged in the circular truncated cone 6, the bottom end of the second arc-shaped energy dissipation groove 7 is connected with a buffer structure, and the bottom end of the buffer structure is fixedly connected to the bottom of the circular truncated cone 6 through a connecting support rod 8; the bottom of the water inlet 3 is connected with a water inlet guide pipe 9, the other end of the water inlet guide pipe 9 is communicated with a water guide pipe 10 which is obliquely arranged, a water outlet end of the water guide pipe 10 is provided with a water turbine 11, and the water turbine 11 is connected with a hydraulic generator. The diameter of the opening end of the second arc-shaped energy dissipation groove 7 is equal to that of the top of the circular truncated cone 6. The buffer structure comprises a moving rod 13, a fixed cylinder 14 is sleeved outside the moving rod 13, one end of the moving rod 13 is fixedly connected with the bottom end of the second arc-shaped energy dissipation groove 7, the other end of the moving rod 13 penetrates through the top of the fixed cylinder 14 and then extends into the fixed cylinder 14, and the bottom of the fixed cylinder 14 is fixedly connected with a connecting support rod 8; an extension spring 15 is connected between the bottom of the moving rod 13 and the bottom of the fixed cylinder 14.
When the energy dissipation tank is used, water flow in hydraulic engineering enters the water inlet 3 in the energy dissipation tank body 1 in the high-speed downward flowing process. The first arc energy dissipation groove 4 and the second arc energy dissipation groove 7 of the water inlet 3 can be an upward convex arc or a downward concave arc. When the first arc-shaped energy dissipation groove 4 and the second arc-shaped energy dissipation groove 7 are downwards concave arcs, water flow falls into the first arc-shaped energy dissipation groove 4 and the second arc-shaped energy dissipation groove 7, part of water is deposited in the first arc-shaped energy dissipation groove 4 and the second arc-shaped energy dissipation groove 7, and the telescopic spring 15 is compressed in the deposition process to enable the second arc-shaped energy dissipation groove 7 to move downwards, so that a gap between the second arc-shaped energy dissipation groove 7 and the circular truncated cone 6 is gradually increased; the water beyond the second arc energy dissipation groove 7 flows out from the gap between the second arc energy dissipation groove 7 and the truncated cone 6. The later water flowing downwards firstly impacts with the water in the second arc-shaped energy dissipation groove 7 in the process of flowing into the second arc-shaped energy dissipation groove 7, the potential energy of the water conservancy is converted into kinetic energy for driving the water in the second arc-shaped energy dissipation groove 7 to flow out, an energy dissipation effect is achieved on the water conservancy, the potential energy in the falling process of the water conservancy is converted into the kinetic energy for driving the water in the arc-shaped groove to flow out, the circulation is carried out, the energy dissipation is carried out on the water conservancy, and the damage to the built engineering facilities caused by the fact that the water flow erodes the hydraulic building and the downstream river channel in the falling process of the water conservancy is reduced. In the process, water in the first arc energy dissipation groove 4 flows out along the water outlet 5 in the first arc energy dissipation groove 4. When the first arc energy dissipation groove 4 and the second arc energy dissipation groove 7 are arcs protruding upwards, reflection scattered flows in different directions can be generated when water conservancy impacts the arc surface of the first arc energy dissipation groove 4 and the arc surface of the second arc energy dissipation groove 7, secondary impact, collision and friction can occur between the reflection scattered flows, the potential energy of water flow is further reduced, and the energy dissipation effect is improved. The telescopic spring 15 is compressed in the process of impact collision of water flow and the second arc-shaped energy dissipation groove 7, the second arc-shaped energy dissipation groove 7 moves downwards, the gap between the second arc-shaped energy dissipation groove 7 and the circular truncated cone 6 is increased, and the water flow subjected to impact, collision and friction energy dissipation flows out through the gap between the second arc-shaped energy dissipation groove 7 and the circular truncated cone 6. The water flow colliding with the first arc energy dissipation groove 4 flows out through the water outlet 5 on the first arc energy dissipation groove 4.
The rivers that pass through water inlet 3 enter into aqueduct 10 through water inlet pipe 9 to from the play water end outflow of aqueduct 10 low department, rivers in the aqueduct 10 impact bucket 12 at the in-process that flows and drive rim plate 16 and rotate, rim plate 16 rotates and drives hydroelectric generator and generate electricity, thereby utilize the water conservancy energy to generate electricity when carrying out the water conservancy energy dissipation, thereby reach make full use of water conservancy energy, the energy can be saved, realize sustainable development's purpose. The water flow after energy dissipation is discharged from the water outlet pipe 2 on the side wall of the bottom of the energy dissipation box body 1.
In this embodiment, the water inlet 3 is set to be stepped, so that the water flow flowing downwards can be dissipated for multiple times, and the energy dissipation effect is improved.
As a further description of the above embodiment, the water turbine 11 includes a wheel disc 16, a plurality of buckets 12 are uniformly fixed on the surface of the wheel disc 16 along the circumferential direction of the wheel disc 16, and the center of the wheel disc 16 is connected with the hydraulic generator through a rotating shaft; the water outlet end of the water guide pipe 10 is opposite to the concave surface of the water bucket 12. The concave surface of the water bucket 12 is uniformly provided with a plurality of convex ribs 17 protruding upwards, a groove 18 is formed between any two adjacent convex ribs 17 by sinking downwards, and the convex ribs 17 and the groove 18 are both in a semi-arc shape.
When the water bucket is used in the embodiment, the circular arc-shaped rib 17 and the circular arc-shaped groove 18 on the concave surface of the water bucket 12 are arranged, so that water flow entering the water bucket 12 collides with the rib 17 and the groove 18 to form reflected and scattered flow. Impact, collision and friction occur again between the reflected and dispersed flows formed in the grooves 18 to further dissipate energy. Meanwhile, the reflected scattered flow in the groove 18 can impact, collide and rub with the reflected scattered flow formed by the rib 17 again to dissipate energy of the water flow again. Therefore, in the embodiment, the arrangement of the rib 17 and the groove 18 can improve the energy dissipation effect by the multiple impacts, collisions and frictions of the water flow in the impact process of the rib 17 and the groove 18.
In this embodiment, the water outlet end of the water guiding pipe 10 is opposite to the concave surface of the bucket 12, so that water flow impacts the bucket 12 to drive the wheel disc 16 to rotate in the water outlet process, and further, the water conservancy generator is driven to generate electricity through the rotating shaft, thereby achieving the effect of generating electricity by using water conservancy energy.
As a further description of the above embodiment, a horizontal support rod 19 is fixedly connected in the water outlet pipe 2, the horizontal support rod 19 is disposed at the water inlet end of the water outlet pipe 2, a plurality of vertical support rods 20 are uniformly disposed on the horizontal support rod 19, the other ends of the vertical support rods 20 are suspended, a plurality of sets of energy dissipation plates 21 are uniformly disposed on the vertical support rods 20 along the length direction of the vertical support rods 20, and the lengths of the energy dissipation plates 21 are sequentially increased from the water inlet end of the water outlet pipe 2 to the water outlet end of the water outlet pipe 2; the upper surface of the energy dissipation plate 21 is provided with a plurality of energy dissipation blocks 22.
When the water-saving device is used, water flow after multiple energy dissipation is discharged through the water outlet pipe 2. When water flow enters the water outlet pipe 2, energy dissipation is carried out again under the action of the energy dissipation plate 21 and the energy dissipation block 22 in the water outlet pipe 2, and the energy dissipation effect is improved. The water flow collides with the energy dissipation plate 21 and the energy dissipation block 22, so that the potential energy of the water flow is partially lost by collision and is partially converted into the kinetic energy of the water flow in the reverse direction, and the energy dissipation effect is achieved. The water flow between two adjacent energy dissipation blocks 22 can collide for a plurality of times during the collision reflection process to improve the collision effect.
In this embodiment, the length of the energy dissipation plate 21 is sequentially increased to enable the energy dissipation of the water flow subjected to energy dissipation to be performed again in the downward flowing process in the flowing direction of the water flow, so that the number of times of energy dissipation is increased, and the energy dissipation effect is improved; the damage to the constructed engineering facilities caused by the scouring of water flow in hydraulic engineering to hydraulic buildings and downstream canals thereof is reduced.
It is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention, and are not intended to indicate or imply that the claimed components or mechanisms must be in a particular orientation, constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, and simplifications are intended to be included in the scope of the present invention.
Claims (6)
1. The utility model provides an energy dissipation structure for among hydraulic engineering, includes energy dissipation box (1), energy dissipation box (1) bottom lateral wall intercommunication has a plurality of outlet pipes (2), its characterized in that: the top of the energy dissipation box body (1) is provided with a plurality of step-shaped water inlets (3), a first arc-shaped energy dissipation groove (4) is arranged in the water inlet (3) at the lowest part, and a plurality of water outlets (5) are arranged on the arc-shaped wall of the first arc-shaped energy dissipation groove (4); a circular truncated cone (6) is arranged in the water inlet (3) above the lowest water inlet (3), the bottom end of the circular truncated cone (6) is fixedly connected with the inner wall of the water inlet (3), a second arc-shaped energy dissipation groove (7) is arranged in the circular truncated cone (6), the bottom end of the second arc-shaped energy dissipation groove (7) is connected with a buffer structure, and the bottom end of the buffer structure is fixedly connected to the bottom of the circular truncated cone (6) through a connecting support rod (8); the water inlet (3) bottom all is connected with into water pipe (9), and the other end intercommunication of into water pipe (9) has aqueduct (10) that the slope set up, and the water outlet end of aqueduct (10) is equipped with hydraulic turbine (11), and hydraulic turbine (11) are connected with hydraulic generator.
2. An energy dissipating structure for use in hydraulic engineering according to claim 1, wherein: the diameter of the opening end of the second arc-shaped energy dissipation groove (7) is equal to that of the top of the circular truncated cone (6).
3. An energy dissipating structure for use in hydraulic engineering according to claim 1, wherein: the buffer structure comprises a moving rod (13), a fixed cylinder (14) is sleeved outside the moving rod (13), one end of the moving rod (13) is fixedly connected with the bottom end of the second arc-shaped energy dissipation groove (7), the other end of the moving rod (13) penetrates through the top of the fixed cylinder (14) and then extends into the fixed cylinder (14), and the bottom of the fixed cylinder (14) is fixedly connected with a connecting support rod (8); an extension spring (15) is connected between the bottom of the moving rod (13) and the bottom of the fixed cylinder (14).
4. An energy dissipating structure for use in hydraulic engineering according to claim 1, wherein: the water turbine (11) comprises a wheel disc (16), a plurality of water hoppers (12) are uniformly fixed on the surface of the wheel disc (16) along the circumferential direction of the wheel disc (16), and the center of the wheel disc (16) is connected with a hydraulic generator through a rotating shaft; the water outlet end of the water guide pipe (10) is opposite to the concave surface of the water bucket (12).
5. An energy dissipating structure for use in hydraulic engineering according to claim 4, wherein: the water bucket (12) concave surface is even to be equipped with a plurality of protruding bead (17) that make progress, and the undercut forms recess (18) between arbitrary two adjacent bead (17), bead (17) with recess (18) are half-circular arc.
6. An energy dissipating structure for use in hydraulic engineering according to claim 1, wherein: a horizontal support rod (19) is fixedly connected in the water outlet pipe (2), the horizontal support rod (19) is arranged at the water inlet end of the water outlet pipe (2), a plurality of vertical support rods (20) are uniformly arranged on the horizontal support rod (19), the other ends of the vertical support rods (20) are suspended in the air, a plurality of groups of energy dissipation plates (21) are uniformly arranged on the vertical support rods (20) along the length direction of the vertical support rods (20), and the lengths of the energy dissipation plates (21) are sequentially increased from the water inlet end of the water outlet pipe (2) to the water outlet end of the water outlet pipe (2); the upper surface of the energy dissipation plate (21) is provided with a plurality of energy dissipation blocks (22) uniformly.
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CN201920969041.XU CN210421029U (en) | 2019-06-25 | 2019-06-25 | Energy dissipation structure for hydraulic engineering |
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CN201920969041.XU CN210421029U (en) | 2019-06-25 | 2019-06-25 | Energy dissipation structure for hydraulic engineering |
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CN201920969041.XU Expired - Fee Related CN210421029U (en) | 2019-06-25 | 2019-06-25 | Energy dissipation structure for hydraulic engineering |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111622884A (en) * | 2020-05-10 | 2020-09-04 | 钟春连 | River power generation device with garbage screening effect |
CN112112135A (en) * | 2020-10-08 | 2020-12-22 | 王涛 | Porous confluence opposite-flushing energy dissipation structure for hydraulic buildings and implementation method |
-
2019
- 2019-06-25 CN CN201920969041.XU patent/CN210421029U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111622884A (en) * | 2020-05-10 | 2020-09-04 | 钟春连 | River power generation device with garbage screening effect |
CN112112135A (en) * | 2020-10-08 | 2020-12-22 | 王涛 | Porous confluence opposite-flushing energy dissipation structure for hydraulic buildings and implementation method |
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Granted publication date: 20200428 Termination date: 20210625 |