Flood discharge and energy dissipation device

Abstract

The invention relates to the technical field of energy dissipation devices, and discloses a flood discharge and energy dissipation device which is installed at the bottom of the drainage side of a dam and comprises a first fluid lifting body and a second fluid lifting body, the first fluid lifting body is fixedly installed at the bottom of the drainage side of the dam, a first flow channel is formed in the surface of the first fluid lifting body, and water discharged by the dam can flow into the first flow channel; under the action of the first flow channel, the air is guided into the air and then falls down; the second fluid lifting body is arranged above the first fluid lifting body, the first flow channel is located between the first fluid lifting body and the second fluid lifting body, a second flow channel is arranged on the upper surface of the second fluid lifting body, meanwhile, a flow dividing gap exists between the second fluid lifting body and the dam, and water flowing out of the dam can flow to the first flow channel and the second flow channel from the flow dividing gap. And water flowing into the second flow channel is guided into the air under the action of the second flow channel and then falls down, and meanwhile, water flowing out of the second flow channel collides with water flowing out of the first flow channel to consume energy when falling down, so that the energy consumption effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy dissipation devices, and more particularly to a flood discharge energy dissipation device. BACKGROUND

[0002] The flood discharge energy dissipation device is an important facility in water conservancy projects for reducing the scouring of the downstream river channel by the flood discharge flow. The main purpose is to effectively reduce the water flow energy during the flood discharge process to protect the safety of the downstream riverbed, riverbank and infrastructure.

[0003] At present, the more common energy dissipation device is mainly through the flip flow for energy dissipation. Its principle is to set a flip flow nose sill at the outlet of the discharge building to throw the discharged torrent into the air, and then fall into the downstream riverbed to dissipate energy through the diffusion of water flow in the air and the friction with the air. This device has simple structure and convenient construction, and is widely used.

[0004] However, the above-mentioned energy dissipation device still has certain defects, that is, the flood water thrown by the flip flow is only friction with the air and the surface of the flip flow nose sill. Since the air is relatively light, the friction force is limited, and the water flow thrown up will still fall back under the action of gravity, and the gravitational potential energy is not greatly reduced. Therefore, the energy dissipation effect is not ideal, and the structure is mostly used for energy dissipation to guide the water flow away from the downstream of the dam to protect the dam foundation. Relatively, the function is limited. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the present application provides a flood discharge energy dissipation device to solve the problems existing in the above background art.

[0006] The present application provides the following technical scheme: a flood discharge energy dissipation device is installed at the bottom of the drainage side of the dam, comprising:

[0007] A first flip flow body is fixedly installed at the bottom of the drainage side of the dam, and the surface of the first flip flow body is provided with a first flow channel. The water discharged from the dam flows into the first flow channel and is guided to fall in the air under the action of the first flow channel;

[0008] A second flip flow body is arranged above the first flip flow body, the first flow channel is between the first flip flow body and the second flip flow body, the upper surface of the second flip flow body is provided with a second flow channel, and there is a flow separation gap between the second flip flow body and the dam. The water discharged from the dam flows from the flow separation gap to the first flow channel. When the instantaneous water flow discharged from the dam exceeds the instantaneous passable water flow of the flow separation gap, the excess water flow flows to the second flow channel and is guided to fall in the air under the action of the second flow channel. At the same time, the water flowing out of the second flow channel falls and collides with the water flowing out of the first flow channel.

[0009] Further, the first adjusting assembly is connected between the second flow body and the dam, and under the action of the first adjusting assembly, the water flow in the first flow channel and the second flow channel tends to be equal, when the water flow in the second flow channel is less than the water flow in the first flow channel, the first adjusting assembly drives the second flow body to be close to the dam to reduce the shunt gap, and when the water flow in the second flow channel is greater than the water flow in the first flow channel, the first adjusting assembly drives the second flow body to be away from the dam to expand the shunt gap.

[0010] Further, the first adjusting assembly includes a first connecting rod, a sliding cavity, a sliding block, a compression spring and a force receiving plate, the sliding cavity is arranged in the dam, the sliding block is slidingly arranged in the sliding cavity, one end of the first connecting rod is fixedly connected with the second flow body, the other end of the first connecting rod extends into the sliding cavity and is fixedly connected with the sliding block, the compression spring is arranged in the sliding block and the sliding cavity, and under the action of the compression spring, the sliding block can drive the second flow body to be close to the dam through the first connecting rod, and the force receiving plate is arranged on the surface of the second flow body, and the water in the second flow channel can exert force on the force receiving plate to drive the second flow body to move away from the dam.

[0011] Further, the end surface of the second flow body away from the dam is fixedly provided with a supporting leg, and the supporting leg is slidingly arranged on the first flow channel, and the sliding direction of the supporting leg on the surface of the first flow channel is consistent with the sliding direction of the sliding block.

[0012] Further, the middle of the second flow body is provided with a third flow channel, the third flow channel is connected with the first flow channel and the second flow channel, and the water in the first flow channel can flow into the second flow channel through the third flow channel and collide with the water in the second flow channel.

[0013] Further, the third flow channel divides the second flow body into a first part and a second part, a second connecting rod is connected between the first part and the second part, the end of the first part away from the second part is connected with the dam, the supporting leg is fixedly connected with the bottom surface of the end of the second part away from the first part, and the end of the third flow channel close to the first flow channel is provided with a second adjusting assembly, and the second adjusting assembly can always connect the third flow channel with the water flow in the first flow channel.

[0014] Further, the bottom surface of the second part is fixedly provided with a guide plate, the guide plate is connected with the third flow channel, and the water in the first flow channel can flow into the third flow channel under the action of the guide plate.

[0015] Further, the second adjusting assembly includes an adjusting plate, the adjusting plate is rotatably arranged at the end of the guide plate close to the first flow channel, the adjusting plate is provided with a driving assembly, and the adjusting plate is driven to rotate through the driving assembly, at the same time, the water in the first flow channel can drive the driving assembly to rotate to drive the adjusting plate to rotate, and the end of the adjusting plate close to the first flow channel is always in the middle of the water flow in the first flow channel.

[0016] Further, the driving assembly comprises a float and a third connecting rod, the second deflector is provided with a slide channel near the surface of the first flow channel, the float is slidingly installed in the slide channel, one end of the third connecting rod is rotatably connected with the float, and the other end is rotatably connected with the bottom end of the adjusting plate, and the water flow in the first flow channel can drive the float to float, and the float can drive the bottom end of the adjusting plate to rotate to the middle of the water flow in the first flow channel through the third connecting rod.

[0017] The first deflector and the second deflector are arranged, water discharged from the dam is divided into two flows, and the two flows are guided upwards in the air through the first deflector and the second deflector respectively, and then collide with each other when falling to dissipate energy, so that more water flow energy is consumed, and the energy dissipation effect is better, the third flow channel is further arranged in the second deflector, part of the water flow in the first flow channel is guided into the second flow channel, so that the water flow in the second flow channel is impacted and dissipated, and the water flow in the second flow channel is lifted in advance, so that the falling point of the water flow in the second flow channel is closer to the end of the first flow channel, so that the water discharged from the first flow channel can stably collide and dissipate energy with the water discharged from the second flow channel, the energy dissipation effect is more stable, and in addition, when the water flow in the first flow channel and the second flow channel is different, the first adjusting assembly can automatically adjust the size of the flow gap to ensure that the water flow in the first flow channel and the second flow channel is equal, so that the consumption of water flow energy is maximized. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic view of the three-dimensional structure of the application;

[0019] Figure 2 It is a schematic view of the internal structure of the application;

[0020] Figure 3 It is a schematic view of the internal structure of the application; Figure 2 It is a schematic view of the internal structure of the application;

[0021] Figure 4 It is a schematic view of the internal structure of the application; Figure 3 It is a schematic view of the internal structure of the application;

[0022] Reference signs are:

[0023] 100, the first deflector; 110, the first flow channel; 200, the second deflector; 201, the first part; 202, the second part; 203, the second connecting rod; 210, the second flow channel; 220, the flow gap; 230, the third flow channel; 240, the supporting leg; 250, the second adjusting assembly; 251, the adjusting plate; 260, the flow guide plate; 270, the driving assembly; 271, the float; 272, the third connecting rod; 300, the first adjusting assembly; 310, the first connecting rod; 320, the slide cavity; 330, the sliding block; 340, the compression spring; 350, the stress plate; 4, the dam. DETAILED DESCRIPTION

[0024] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples and are not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Reference Figure 1 、 Figure 2 and Figure 3 The present invention provides a flood discharge and energy dissipation device, which is installed at the bottom of the drainage side of the dam 4 and includes: a first flow picker 100 and a second flow picker 200. The first flow picker 100 is fixedly installed at the bottom of the drainage side of the dam 4, and a curved first flow channel 110 is provided on the surface of the first flow picker 100. Water discharged from the dam 4 flows into the first flow channel 110 and is guided into the air by the first flow channel 110 before falling.

[0026] The second fluid picker 200 is arranged above the first fluid picker 100, and the first flow channel 110 is between the first fluid picker 100 and the second fluid picker 200. A curved second flow channel 210 is provided on the upper surface of the second fluid picker 200. At the same time, there is a diversion gap 220 between the second fluid picker 200 and the dam 4. The water flowing out of the dam 4 will flow from the diversion gap 220 to the first flow channel 110, and when the instantaneous water flow out of the dam 4 exceeds the instantaneous water flow that can pass through the diversion gap 220, the excess water flow will flow to the second flow channel 210, and under the action of the second flow channel 210, it will be guided into the air and then fall. At the same time, the water flowing out of the second flow channel 210 will collide with the water flowing out of the first flow channel 110 when falling.

[0027] In this way, when the dam 4 opens the gate to discharge floodwater, the floodwater will flow downward along the dam body of the dam 4, then pass through the diversion gap 220 and flow into the first flow channel 110, and finally be guided into the air by the guiding action of the first flow channel 110 to rub against the air and then fall down to consume energy. In this process, when the floodwater passes through the diversion gap 220, due to the large water flow rate, the water flow that exceeds the diversion gap 220 that can pass through will flow into the second flow channel 210, and under the action of the second flow channel 210, it will be guided into the air and then fall down to consume energy. At the same time, the water flow falling from the second flow channel 210 will contact and collide with the water flow out of the first flow channel 110 again to further consume energy, thereby achieving the effect of improving the energy dissipation effect.

[0028] In order to make the water flow in the first flow channel 110 and the second flow channel 210 more balanced and to ensure that the energy dissipation effect of the water flow is maximized, a more preferred solution is provided below, namely:

[0029] As shown in Figure 3 and Figure 4 , a first adjusting assembly 300 is connected between the second flow body 200 and the dam 4, and the first adjusting assembly 300 can make the water flow in the first flow channel 110 and the second flow channel 210 tend to be equal. When the water flow in the second flow channel 210 is less than that in the first flow channel 110, the first adjusting assembly 300 drives the second flow body 200 to be close to the dam 4 to reduce the diversion gap 220, so that the water flow into the second flow channel 210 is increased and the water flow into the first flow channel 110 is reduced. When the water flow in the second flow channel 210 is greater than that in the first flow channel 110, the first adjusting assembly 300 drives the second flow body 200 to be away from the dam 4 to make the diversion gap 220 expand, so that the water flow into the first flow channel 110 is increased and the water flow into the second flow channel 210 is reduced, thereby ensuring that the water flow in the first flow channel 110 and the second flow channel 210 is as equal as possible, and the water energy of the first flow channel 110 and the second flow channel 210 is equal, so as to ensure that the energy dissipation effect is optimal.

[0030] Hereinafter, an embodiment of the first adjusting assembly 300 is listed in detail, specifically: the first adjusting assembly 300 comprises a first connecting rod 310, a sliding cavity 320, a sliding block 330, a compression spring 340 and a force receiving plate 350. The sliding cavity 320 is arranged in the dam 4, the sliding block 330 is slidingly installed in the sliding cavity 320, one end of the first connecting rod 310 is fixedly connected with the second flow body 200, the other end extends into the sliding cavity 320 and is fixedly connected with the sliding block 330, the compression spring 340 is installed in the sliding block 330 and the sliding cavity 320, and under the action of the compression spring 340, the sliding block 330 can drive the second flow body 200 to be close to the dam 4 through the first connecting rod 310. The force receiving plate 350 is installed on the surface of the second flow body 200, and the water in the second flow channel 210 can exert force on the force receiving plate 350 to drive the second flow body 200 to move away from the dam 4.

[0031] Thus, when the water in the second flow channel 210 is less than the water in the first flow channel 110, the force exerted by the second flow channel 210 on the force receiving plate 350 will decrease, at this time, under the action of the compression spring 340, the slider 330 will drive the second pick-up flow body 200 to move towards the dam 4 through the first connecting rod 310, thereby narrowing the shunt gap 220, so as to increase the water in the second flow channel 210, to ensure that the water flow in the first flow channel 110 and the second flow channel 210 tends to be equal, on the contrary, if the water in the second flow channel 210 is more, the force on the force receiving plate 350 will increase, thereby driving the second pick-up flow body 200 away from the dam 4 to increase the shunt gap 220, so as to increase the water in the first flow channel 110 and reduce the water in the second flow channel 210, so as to ensure that the water flow in the first flow channel 110 and the second flow channel 210 tends to be equal, finally, the energy consumption of the whole device is maximized.

[0032] In order to make the second pick-up flow body 200 more stable, the above scheme is further optimized, specifically:

[0033] As shown in Figure 1 and Figure 2 , the supporting leg 240 is fixedly installed on the bottom surface of the end of the second pick-up flow body 200 away from the dam 4, and the supporting leg 240 is slidably mounted on the first flow channel 110, and the sliding direction of the supporting leg 240 on the surface of the first flow channel 110 is consistent with the sliding direction of the slider 330, so that the second pick-up flow body 200 has good stability.

[0034] In order to further improve the energy dissipation effect, the above scheme is further optimized, specifically as follows:

[0035] As shown in Figure 2 and Figure 3 , the third flow channel 230 is provided in the middle of the second pick-up flow body 200, the third flow channel 230 communicates the first flow channel 110 and the second flow channel 210, and the water in the first flow channel 110 can flow into the second flow channel 210 through the third flow channel 230 and collide with the water in the second flow channel 210, so that part of the water in the first flow channel 110 will flow into the second flow channel 210 through the third flow channel 230, in this way, the water flowing out of the third flow channel 230 will impact the water flowing in the second flow channel 210, thereby generating energy consumption again, and this impact can also make part of the water in the second flow channel 210 lift ahead, in this way, the landing point of this part of water will be closer to the end of the second flow channel 210, so that the water flowing out of the end of the second flow channel 210 is closer to the end of the first flow channel 110, facilitating the collision of the water flow out of the first flow channel 110 with the water flow out of the second flow channel 210.

[0036] Among them, if the water flow of the flood discharge can only enter the first flow channel 110, and there is no water in the second flow channel 210, under the above solution, part of the water in the first flow channel 110 will also enter the second flow channel 210 to form an impact. In addition, in order to make the water flow in the third flow channel 230 equal to the water flow in the first flow channel 110, the solution is further optimized as follows:

[0037] like Figure 3 As shown, the second body 200 is divided into a first part 201 and a second part 202 by the third flow channel 230, and a second connecting rod 203 is connected between the first part 201 and the second part 202. The end of the first part 201 away from the second part 202 is connected to the dam 4, and the support leg 240 is fixedly connected to the bottom surface of the end of the second part 202 away from the first part 201. A second regulating component 250 is provided at the end of the third flow channel 230 close to the first flow channel 110, and the third flow channel 230 can be always connected to the middle of the water flow in the first flow channel 110 through the second regulating component 250. In this way, it can be ensured that nearly half of the water in the first flow channel 110 always flows away from the third flow channel 230. In this way, even a small amount of flood discharge flow can achieve a good mutual energy dissipation effect.

[0038] Continue to optimize the third flow channel 230, such as Figure 3 As shown, a guide plate 260 is fixedly installed on the bottom surface of the second split body 202, which is connected to the third flow channel 230, and the water in the first flow channel 110 can flow into the third flow channel 230 under the action of the guide plate 260. The guide plate 260 can better guide the water in the first flow channel 110 into the third flow channel 230.

[0039] The following is a specific embodiment of the second adjustment component 250: Figure 3 As shown, the second adjustment component 250 includes an adjustment plate 251, which is rotatably mounted on the end of the guide plate 260 near the first flow channel 110. The adjustment plate 251 is equipped with a driving component 270, and the driving component 270 drives the adjustment plate 251 to rotate. At the same time, the water in the first flow channel 110 can drive the driving component 270 to operate to drive the adjustment plate 251 to rotate, and make the end of the adjustment plate 251 near the first flow channel 110 always in the middle of the water flow in the first flow channel 110. In this way, it can be ensured that nearly half of the water in the first flow channel 110 always flows away from the third flow channel 230.

[0040] An embodiment of the drive assembly 270 is listed below. Figure 3As shown, the driving assembly 270 comprises a float 271 and a third connecting rod 272, the second deflector 200 is provided with a slide near the surface of the first flow channel 110, the float 271 is slidingly installed in the slide, one end of the third connecting rod 272 is rotatably connected with the float 271, and the other end is rotatably connected with the bottom end of the adjusting plate 251, and the water flow in the first flow channel 110 can drive the float 271 to float, and the float 271 floating can drive the bottom end of the adjusting plate 251 to rotate to the middle of the water flow in the first flow channel 110 through the third connecting rod 272, so that when the water flow in the first flow channel 110 changes, the float 271 will float or sink, thereby driving the adjusting plate 251 to rotate, ensuring that the bottom end of the adjusting plate 251 is always in the middle of the water flow in the first flow channel 110, and ensuring that the water in the first flow channel 110 always has nearly half of the water flow flowing away from the third flow channel 230.

[0041] Therefore, the complete use process is that when the dam 4 is opened to discharge flood, the flood will flow down along the dam body of the dam 4, then flow to the first flow channel 110 through the shunt gap 220, and finally be guided to the air to be rubbed with the air and then fall down to consume energy under the guidance of the first flow channel 110. In this process, when the flood flows through the shunt gap 220, because the water flow is large, the water flow exceeding the water flow that can pass through the shunt gap 220 will flow to the second flow channel 210, and be guided to the air to fall down to consume energy under the action of the second flow channel 210, and at the same time, the water flow falling down on the second flow channel 210 will contact and collide with the water flow flowing out of the first flow channel 110 again to further consume energy, achieving the effect of improving the energy dissipation effect.

[0042] When the water in the second flow channel 210 is less than the water in the first flow channel 110, the force exerted by the second flow channel 210 on the force receiving plate 350 will decrease, at this time, under the action of the compression spring 340, the sliding block 330 will drive the second deflector 200 to move away from the dam 4 through the first connecting rod 310, thereby increasing the shunt gap 220, so as to increase the water in the second flow channel 210, to ensure that the water flow in the first flow channel 110 and the second flow channel 210 tends to be equal, and vice versa, if the water in the second flow channel 210 is more, the force exerted on the force receiving plate 350 will increase, thereby driving the second deflector 200 to move away from the dam 4 to increase the shunt gap 220, so as to increase the water in the first flow channel 110 and reduce the water in the second flow channel 210, to ensure that the water flow in the first flow channel 110 and the second flow channel 210 tends to be equal, and finally to maximize the energy consumption of the whole device.

[0043] In addition, part of the water in the first flow channel 110 will also flow into the second flow channel 210 from the third flow channel 230, so that the water flowing out of the third flow channel 230 will impact the water flowing in the second flow channel 210, thereby generating energy consumption again, and the impact can also cause part of the water in the second flow channel 210 to be lifted in advance, so that the landing point of the part of the water will be closer to the end of the second flow channel 210, thereby causing the water flowing out of the end of the second flow channel 210 to be closer to the end of the first flow channel 110, facilitating the collision of the water flow flowing out of the first flow channel 110 and the water flow flowing out of the second flow channel 210.

[0044] In addition, when the flood discharge water flow is small and can only flow into the first flow channel 110, the water inside the first flow channel 110 will also be guided into the third flow channel 230 under the action of the guide plate 260, and a part of the water will be branched to the middle of the second flow channel 210 under the action of the third flow channel 230, so that the collision of the water flow of the first flow channel 110 and the second flow channel 210 can also be realized, and when the water flow in the first flow channel 110 increases, the floating body 271 will float up, thereby driving the adjusting plate 251 to rotate, ensuring that the bottom end of the adjusting plate 251 is always in the middle of the water flow in the first flow channel 110, and ensuring that the water in the first flow channel 110 always has nearly half of the water flow flowing away from the third flow channel 230, so that even a small amount of flood discharge water flow can also have a good mutual energy dissipation effect.

[0045] Finally, it should be noted that the drawings of the disclosed embodiments only involve the structures involved in the disclosed embodiments, and other structures can be referred to the usual design, and in the case of no conflict, the same embodiment and different embodiments of the present application can be combined with each other;

[0046] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A flood discharge and energy dissipation device, characterized in that: It is installed at the bottom of the drainage side of the dam (4) and includes: A first flow picker (100) is fixedly installed at the bottom of the drainage side of the dam (4), and a first flow channel (110) is provided on the surface of the first flow picker (100). Water discharged from the dam (4) flows into the first flow channel (110) and is guided into the air by the first flow channel (110) before falling down. The second fluid picker (200) is arranged above the first fluid picker (100), and the first flow channel (110) is between the first fluid picker (100) and the second fluid picker (200). The upper surface of the second fluid picker (200) is provided with a second flow channel (210). At the same time, there is a diversion gap (220) between the second fluid picker (200) and the dam (4). Water flowing out of the dam (4) will flow from the diversion gap (220) to the first flow channel (110), and when the instantaneous water flow rate flowing out of the dam (4) exceeds the instantaneous water flow rate that can pass through the diversion gap (220), the excess water flow will flow to the second flow channel (210), and under the action of the second flow channel (210), it will be guided into the air and then fall down. At the same time, the water flowing out of the second flow channel (210) will collide with the water flowing out of the first flow channel (110) when falling.

2. The flood discharge and energy dissipation device according to claim 1, characterized in that: A first regulating component (300) is connected between the second flow picker (200) and the dam (4), and under the action of the first regulating component (300), the water flow rates in the first flow channel (110) and the second flow channel (210) tend to be equal. When the water flow rate in the second flow channel (210) is less than the water flow rate in the first flow channel (110), the first regulating component (300) drives the second flow picker (200) to approach the dam (4) to reduce the diversion gap (220). When the water flow rate in the second flow channel (210) is greater than the water flow rate in the first flow channel (110), the first regulating component (300) drives the second flow picker (200) away from the dam (4) to expand the diversion gap (220).

3. The flood discharge and energy dissipation device according to claim 2, characterized in that: The first regulating assembly (300) includes a first connecting rod (310), a sliding cavity (320), a slider (330), a compression spring (340) and a force plate (350). The sliding cavity (320) is opened in the dam (4). The slider (330) is slidably installed in the sliding cavity (320). One end of the first connecting rod (310) is fixedly connected to the second lifting body (200), and the other end extends into the sliding cavity (320) and is fixedly connected to the slider (330). The compression spring (340) is provided with a pressure plate (350). The spring (340) is installed in the slider (330) and the slide cavity (320), and under the action of the compression spring (340), the slider (330) can drive the second fluid-lifting fluid (200) to approach the dam (4) through the first connecting rod (310), and the force-bearing plate (350) is installed on the surface of the second fluid-lifting fluid (200), and the water in the second flow channel (210) will exert force on the force-bearing plate (350) to drive the second fluid-lifting fluid (200) to move in a direction away from the dam (4).

4. The flood discharge and energy dissipation device according to claim 3, characterized in that: A support leg (240) is fixedly mounted on the bottom surface of the end of the second fluid picker (200) away from the dam (4), and the support leg (240) is slidably mounted on the first flow channel (110), and the sliding direction of the support leg (240) on the surface of the first flow channel (110) is consistent with the sliding direction of the slider (330).

5. The flood discharge and energy dissipation device according to claim 4, characterized in that: A third flow channel (230) is provided in the middle of the second flow picker (200), and the third flow channel (230) connects the first flow channel (110) and the second flow channel (210), and water in the first flow channel (110) can flow into the second flow channel (210) through the third flow channel (230) and collide with water in the second flow channel (210).

6. The flood discharge and energy dissipation device according to claim 5, characterized in that: The third flow channel (230) divides the second flow pick (200) into a first sub-body (201) and a second sub-body (202); a second connecting rod (203) is connected between the first sub-body (201) and the second sub-body (202); the end of the first sub-body (201) away from the second sub-body (202) is connected to the dam (4); the support leg (240) is fixedly connected to the bottom surface of the end of the second sub-body (202) away from the first sub-body (201); a second regulating component (250) is provided at the end of the third flow channel (230) close to the first flow channel (110), and the second regulating component (250) can be used to ensure that the third flow channel (230) is always connected to the middle of the water flow in the first flow channel (110).

7. A flood discharge and energy dissipation device according to claim 5 or 6, characterized in that: A guide plate (260) is fixedly mounted on the bottom surface of the second split body (202), which is in communication with the third flow channel (230), and water in the first flow channel (110) can flow into the third flow channel (230) under the action of the guide plate (260).

8. The flood discharge and energy dissipation device according to claim 7, characterized in that: The second regulating assembly (250) comprises a regulating plate (251), which is rotatably mounted on the end of the guide plate (260) close to the first flow channel (110). The regulating plate (251) is equipped with a driving assembly (270), and the driving assembly (270) drives the regulating plate (251) to rotate. At the same time, water in the first flow channel (110) can drive the driving assembly (270) to operate to drive the regulating plate (251) to rotate, and ensure that the end of the regulating plate (251) close to the first flow channel (110) is always located in the middle of the water flow in the first flow channel (110).

9. The flood discharge and energy dissipation device according to claim 8, characterized in that: The driving assembly (270) includes a float (271) and a third connecting rod (272). A slideway is provided on the surface of the second fluid picker (200) close to the first flow channel (110). The float (271) is slidably installed in the slideway. One end of the third connecting rod (272) is rotatably connected to the float (271), and the other end is rotatably connected to the bottom end of the adjustment plate (251). The water flow in the first flow channel (110) can drive the float (271) to float. At the same time, the floating of the float (271) can drive the bottom end of the adjustment plate (251) to rotate to the middle of the water flow in the first flow channel (110) through the third connecting rod (272).

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