Combined type energy dissipation and power generation spillway structure

Abstract

The utility model discloses a combined type energy dissipation power generation spillway structure, and belongs to the field of water conservancy energy dissipation. The two sides of the bottom plate are connected with the wing walls and the U-shaped energy dissipation pier respectively, the arc-shaped energy dissipation pier is installed between the wing walls on the two sides in an attached mode, the arc-shaped energy dissipation pier is installed in the outflow direction of the bottom plate, a front plate is arranged on the front portion of the arc-shaped energy dissipation pier, the U-shaped energy dissipation pier is installed on the front plate, and the U-shaped face of the U-shaped energy dissipation pier faces the inflow direction. A first energy dissipation power generation device is installed between the wing walls on the two sides of the front end of the U-shaped energy dissipation pier, a groove is formed in the upper portion of the U-shaped energy dissipation pier, a second energy dissipation power generation device is installed in the groove, and a third energy dissipation power generation device is arranged on the arc-shaped face of the arc-shaped energy dissipation pier. The first energy dissipation power generation device, the second energy dissipation power generation device and the third energy dissipation power generation device penetrate through the wing wall on one side and then are connected with the power generator. According to the utility model, the impact of water flow is reduced, greater harm to the downstream is prevented, power generation can be realized, and energy is fully utilized, so that the effects of energy dissipation and energy utilization are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water conservancy energy dissipation, and specifically relates to a combined energy dissipation power generation spillway structure. Background Art

[0002] As an important facility in water conservancy projects to ensure the safety of dams, spillways are known for their advantages of rapid flood discharge and reservoir regulation. However, as the water flow increases, the floods discharged from the spillway bring huge impact, causing serious scouring of the downstream river channel, which not only damages the ecological environment, but also endangers the safety of people's lives and property. Traditional spillways cannot effectively utilize water flow energy, but will aggravate downstream damage due to energy accumulation.

[0003] The existing spillway energy dissipation measures usually involve setting up a stilling pool at the end of the outlet section, but the stilling pool is often damaged by the impact of water flow energy. The impact force of water flow increases with the change of height in the spillway, and the kinetic energy of water flow impact is not effectively utilized. Utility Model Content

[0004] The purpose of the utility model is to propose a combined energy dissipation and power generation spillway structure, which can not only effectively solve the energy consumption and scouring problems of the spillway, but also make full use of the energy brought by the impact of water flow, realize the effective utilization of water energy, and has significant economic and social benefits.

[0005] The technical scheme adopted by the utility model is: a combined energy dissipation and power generation spillway structure, comprising a bottom plate 1, a wing wall 2, a U-shaped energy dissipation pier 6, and an arc-shaped energy dissipation pier 11; the two sides of the bottom plate 1 are respectively connected with the wing walls 2, the U-shaped energy dissipation pier 6 and the arc-shaped energy dissipation pier 11 are fitted and installed between the wing walls 2 on both sides, the arc-shaped energy dissipation pier 11 is installed in the outflow direction of the bottom plate 1, a front plate 13 is provided at the front of the arc-shaped energy dissipation pier 11, the U-shaped energy dissipation pier 6 is installed on the front plate 13 and the U-shaped surface of the U-shaped energy dissipation pier 6 faces the incoming flow direction, a first energy dissipation and power generation device is installed between the wing walls 2 on both sides of the front end of the U-shaped energy dissipation pier 6, a groove is provided on the upper part of the U-shaped energy dissipation pier 6, a second energy dissipation and power generation device is installed in the groove, a third energy dissipation and power generation device is provided on the arc-shaped surface of the arc-shaped energy dissipation pier 11, and the first energy dissipation and power generation device, the second energy dissipation and power generation device, and the third energy dissipation and power generation device are all connected to the generator 3 after passing through the wing wall 2 on one side.

[0006] Specifically, the first energy dissipation power generation device includes a first rotating shaft 5 and a first blade 4. One end of the first rotating shaft 5 is embedded in the inner wall of the wing wall 2 on one side, and the other end passes through the wing wall 2 on the other side and is connected to the generator 3. The first blade 4 is installed on the first rotating shaft 5 between the wing walls 2 on both sides.

[0007] Specifically, the second energy dissipation power generation device includes a second rotating shaft 8 and a second blade 9. One end of the second rotating shaft 8 is embedded in the inner wall of the wing wall 2 on one side, and the other end passes through the inner walls on both sides of the groove and the other side wing wall 2 in sequence and is connected to the generator 3. The second blade 9 is installed on the second rotating shaft 8 in the groove.

[0008] Specifically, the third energy dissipation and power generation device includes a third rotating shaft 14 and a metal roller 10. One end of the third rotating shaft 14 is embedded in the inner wall of the wing wall 2 on one side, and the other end passes through the wing wall 2 on the other side and is connected to the generator 3. The metal roller 10 is installed on the third rotating shaft 14 between the wing walls 2 on both sides. The metal roller 10 is arranged along the outer contour of the arc-shaped energy dissipation pier 11 and contacts the outer contour surface of the arc-shaped energy dissipation pier 11.

[0009] Preferably, an overflow groove 7 is provided inside the groove in the outflow direction.

[0010] Preferably, a discharge bottom trough 12 is formed through the bottom of the arc-shaped energy dissipation pier 11 .

[0011] The beneficial effects of the utility model are:

[0012] 1. When the flood discharge hits, the blades of the first energy dissipation power generation device first weaken the water flow and perform the first energy dissipation power generation. As the water flow gradually increases, the water flow hits the U-shaped energy dissipation pier. At this time, the water flow after energy dissipation by the first energy dissipation power generation device is picked up on the U-shaped energy dissipation pier and dissipated in the air. Then, the water flow enters the second energy dissipation power generation device in the inner groove of the U-shaped energy dissipation pier to dissipate energy and generate electricity again. After the downstream water flow comes out of the U-shaped energy dissipation pier, it enters the third energy dissipation power generation device to dissipate energy and generate electricity. The energy of the water flow is maximized, which is not only beneficial in terms of energy conversion and utilization, but also can slow down the water flow speed and has the function of diversion, thereby preventing scouring of the downstream, reducing the pressure on the downstream energy dissipation pool, improving flood control safety, and protecting the ecological environment.

[0013] 2. The utility model is simple to install and convenient to construct. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a rear view schematic diagram of the overall structure of the utility model;

[0016] Figure 3 It is a structural diagram and a partial enlarged diagram of the connection between the first energy dissipation power generation device, the third energy dissipation power generation device and the wing wall of the utility model;

[0017] Figure 4 It is a structural diagram and a partial enlarged diagram of the connection between the second energy dissipation power generation device and the U-shaped energy dissipation pier of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the arc-shaped energy dissipation pier of the utility model.

[0019] In the figure: 1-bottom plate; 2-wing wall; 3-generator; 4-first blade; 5-first rotating shaft; 6-U-shaped energy dissipation pier; 7-overflow trough; 8-second rotating shaft; 9-second blade; 10-metal roller; 11-arc-shaped energy dissipation pier; 12-discharge bottom trough; 13-front plate; 14-third rotating shaft. DETAILED DESCRIPTION

[0020] The utility model is described in detail below through the accompanying drawings and specific embodiments.

[0021] Example 1: Figure 1-5 A combined energy dissipation and power generation spillway structure comprises a bottom plate 1, wing walls 2, U-shaped energy dissipation piers 6, and arc-shaped energy dissipation piers 11; the wing walls 2 are respectively connected to the two sides of the bottom plate 1, the U-shaped energy dissipation piers 6 and the arc-shaped energy dissipation piers 11 are fitted and installed between the wing walls 2 on both sides, the arc-shaped energy dissipation piers 11 are installed in the outflow direction of the bottom plate 1, a front plate 13 is provided in front of the arc-shaped energy dissipation pier 11, the U-shaped energy dissipation pier 6 is installed on the front plate 13 and the U-shaped surface of the U-shaped energy dissipation pier 6 faces the incoming flow direction, a first energy dissipation and power generation device is installed between the wing walls 2 on both sides of the front end of the U-shaped energy dissipation pier 6, a groove is provided on the upper part of the U-shaped energy dissipation pier 6, a second energy dissipation and power generation device is installed in the groove, a third energy dissipation and power generation device is provided on the arc-shaped surface of the arc-shaped energy dissipation pier 11, and the first energy dissipation and power generation device, the second energy dissipation and power generation device, and the third energy dissipation and power generation device are all connected to the generator 3 after passing through the wing wall 2 on one side.

[0022] Furthermore, the first energy dissipation power generation device includes a first rotating shaft 5 and a first blade 4. The first rotating shaft 5 is installed along the horizontal direction of the incoming flow and one end of the first rotating shaft 5 is embedded in the inner side of the wing wall 2 on one side, and the other end passes through the wing wall 2 on the other side and is connected to the generator 3. The first blade 4 is installed on the rotating shaft 5 between the wing walls 2 on both sides.

[0023] Furthermore, the second energy dissipation power generation device includes a second rotating shaft 8 and a second blade 9. One end of the second rotating shaft 8 is embedded in the inner wall of the wing wall 2 on one side, and the other end passes through the inner walls on both sides of the groove and the other side wing wall 2 in sequence and is connected to the generator 3. The second blade 9 is installed on the second rotating shaft 8 in the groove.

[0024] Furthermore, the third energy dissipation power generation device includes a third rotating shaft 14 and a metal roller 10. One end of the third rotating shaft 14 is embedded in the inner wall of the wing wall 2 on one side, and the other end passes through the wing wall 2 on the other side and is connected to the generator 3. The metal roller 10 is installed on the rotating shaft 5 between the wing walls 2 on both sides, that is, the metal roller 10 is installed along the horizontal direction of the outflow, and the metal roller 10 is arranged along the outer contour of the arc-shaped energy dissipation pier 11 and contacts the outer contour surface of the arc-shaped energy dissipation pier 11.

[0025] Furthermore, an overflow groove 7 is provided in the outflow direction of the groove. When the water volume is large, the water flows through the overflow groove 7 to the arc-shaped energy dissipation pier 11, so that the water flow changes from rapid to slow, and plays a guiding role.

[0026] Furthermore, a discharge bottom trough 12 is formed through the bottom of the arc-shaped energy dissipation pier 11. The discharge bottom trough 12 runs through the entire energy dissipation power generation structure. When the overflow flow of the spillway is too large to submerge the first rotating shaft 5, the first blade 4 and the generator 3 in the first energy dissipation power generation device, the water is discharged through the discharge bottom trough 12.

[0027] The working principle of the utility model is: when water flow impacts the first blade 4 in the first energy dissipation power generation device, the first blade 4 dissipates the energy of the water flow and drives the first rotating shaft 5 to rotate. The rotation of the first rotating shaft 5 drives the generator 3 to work and perform energy dissipation power generation.

[0028] When the water flow increases, it overflows the first energy dissipation power generation device, causing the first energy dissipation power generation device to temporarily fail, thereby impacting the U-shaped energy dissipation pier 6, and the water flow is diverted, and the energy is dissipated in the air to complete the energy dissipation. When the water flow depth becomes deeper, it overflows into the groove, and the water flow impacts the second blade 9 in the second energy dissipation power generation device inside the groove. The second blade 9 dissipates the water flow energy while driving the second rotating shaft 8 to rotate, thereby driving the generator 3 to work and perform energy dissipation power generation.

[0029] like Figure 5 As shown, when the incoming flow flows out of the overflow groove 7 of the U-shaped energy dissipation pier 6 and enters the arc-shaped energy dissipation pier 11, the metal drum 10 rotates, and the metal drum 10 drives the third rotating shaft 14 in the third energy dissipation power generation device to rotate while dissipating the water flow energy, thereby driving the generator 3 to work, dissipating the water flow and generating electricity. At the same time, when the incoming flow is too large, it can be diverted through the discharge bottom trough 12, and when the incoming flow is too small, the blocked residual flow can be discharged through the discharge bottom trough 12.

[0030] The utility model can effectively disperse and reduce the energy of floods, reduce the power of floods, and reduce the damage to downstream areas and water conservancy engineering buildings. At the same time, it can also convert the kinetic energy of water flow impact into electrical energy, improve the efficiency of water energy conversion, achieve energy conservation and emission reduction, and provide more opportunities for clean energy production. In addition, the structure is simple in design, easy to install and easy to construct.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A combined energy dissipation power generation spillway structure, characterized in that: The invention comprises a bottom plate (1), wing walls (2), a U-shaped energy dissipation pier (6), and an arc-shaped energy dissipation pier (11); the bottom plate (1) is connected to the wing walls (2) on both sides respectively; the U-shaped energy dissipation pier (6) and the arc-shaped energy dissipation pier (11) are fitted and installed between the wing walls (2) on both sides; the arc-shaped energy dissipation pier (11) is installed in the outflow direction of the bottom plate (1); a front plate (13) is provided at the front of the arc-shaped energy dissipation pier (11); the U-shaped energy dissipation pier (6) is installed on the front plate (13) and the U-shaped surface of the U-shaped energy dissipation pier (6) faces the incoming flow direction; a first energy dissipation power generation device is installed between the wing walls (2) on both sides at the front end of the U-shaped energy dissipation pier (6); a groove is provided at the upper part of the U-shaped energy dissipation pier (6), and a second energy dissipation power generation device is installed in the groove; a third energy dissipation power generation device is provided on the arc-shaped surface of the arc-shaped energy dissipation pier (11); the first energy dissipation power generation device, the second energy dissipation power generation device, and the third energy dissipation power generation device are all connected to the generator (3) after passing through the wing wall (2) on one side.

2. A combined energy dissipation and power generation spillway structure according to claim 1, characterized in that: The first energy dissipation power generation device comprises a first rotating shaft (5) and a first blade (4); one end of the first rotating shaft (5) is embedded in the inner wall of the wing wall (2) on one side, and the other end passes through the wing wall (2) on the other side and is connected to the generator (3); the first blade (4) is mounted on the first rotating shaft (5) between the wing walls (2) on both sides.

3. The combined energy dissipation and power generation spillway structure according to claim 1, characterized in that: The second energy dissipation power generation device comprises a second rotating shaft (8) and a second blade (9); one end of the second rotating shaft (8) is embedded in the inner wall of the wing wall (2) on one side, and the other end passes through the inner walls on both sides of the groove and the other side wing wall (2) in sequence and is connected to the generator (3); the second blade (9) is installed on the second rotating shaft (8) in the groove.

4. The combined energy dissipation and power generation spillway structure according to claim 1, characterized in that: The third energy dissipation power generation device comprises a third rotating shaft (14) and a metal roller (10); one end of the third rotating shaft (14) is embedded in the inner wall of the wing wall (2) on one side, and the other end passes through the wing wall (2) on the other side and is connected to the generator (3); the metal roller (10) is installed on the third rotating shaft (14) between the wing walls (2) on both sides; the metal roller (10) is arranged along the outer contour of the arc-shaped energy dissipation pier (11) and contacts the outer contour surface of the arc-shaped energy dissipation pier (11).

5. The combined energy dissipation and power generation spillway structure according to claim 1 is characterized by: An overflow groove (7) is provided inside the groove in the outflow direction.

6. The combined energy dissipation and power generation spillway structure according to claim 1, characterized in that: A discharge bottom trough (12) is formed through the bottom of the arc-shaped energy dissipation pier (11).

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