Power generation equipment for kettle opening waterfall

Abstract

A first cofferdam is arranged on the periphery of a kettle opening, water flow in multiple directions formed at the kettle opening is subjected to preliminary diversion constraint, then a second cofferdam is arranged on the outer side of the first cofferdam in a spaced mode, a river channel is formed between the first cofferdam and the second cofferdam, and the two cofferdams are cooperatively constrained, so that the water flow in the multiple directions is subjected to preliminary diversion constraint. When the water flow passes through the slope grooves, a new water flow direction can be formed, then the slope grooves in the first cofferdam and the second cofferdam are utilized to enable the water flow to flow down from the slope grooves, and then a new gravity fall is formed to drive the generator below to generate electricity. The device ingeniously utilizes the fall naturally formed when the water flow passes through the slope grooves, and the potential energy utilization efficiency of the water flow is improved; the increase of the water flow fall is directly converted into more power sources of the power generation unit, so that efficient and sustainable energy conversion is realized, and the device can adjust the water flow direction and the water flow speed through the cooperation of the new river channel and the slope groove, so that the power generation efficiency is improved, and the utilization rate of water resources is also improved.

Description

Technical Field

[0001] The invention belongs to the technical field of power generation at Hukou Waterfall and relates to power generation equipment used for Hukou Waterfall. Background Art

[0002] At present, there is limited information about specific projects that directly utilize the drop of the Hukou Waterfall to generate large-scale hydropower. However, with the increasing attention paid to clean energy and the comprehensive development of water resources, similar hydropower projects have been widely practiced in various regions.

[0003] Since there are relatively few specific practical projects that directly use the waterfall drop to generate large-scale hydropower at Hukou Waterfall, there are still many problems in using the waterfall drop to generate electricity at Hukou Waterfall. First, the instability of water flow direction: The water flow direction of Hukou Waterfall is affected by many natural factors, such as rainfall differences caused by seasonal changes, fluctuations in upstream water volume, and slight changes in riverbed topography, which may cause frequent changes in water flow direction. This instability makes it difficult to design and fix an efficient water diversion system, thereby reducing the efficiency and stability of water energy conversion. Second, the uneven distribution of water flow speed: During the vertical fall of the waterfall, the speed distribution is often uneven due to air resistance, internal friction of the water flow, and the influence of terrain. The water flow speed near the edge of the waterfall may be slower, while the center area is faster. This speed difference makes it difficult to find the best location when designing and installing power generation equipment such as turbines to maximize the capture of water flow energy. Third, high sediment content: As one of the rivers with the largest sediment content in the world, the large amount of sediment carried by the Yellow River is particularly evident at Hukou Waterfall. High sediment content will not only increase the wear of equipment such as turbines and reduce their service life, but may also block water diversion channels and power generation equipment, further reducing power generation efficiency. Fourth, significant seasonal changes: There are obvious seasonal changes in precipitation and temperature in the area where Hukou Waterfall is located, which causes the water volume and water flow rate of the waterfall to change accordingly. In the dry season, the water volume decreases, the water flow rate decreases, and the power generation efficiency drops significantly; while in the flood season, although the water volume increases, the drastic changes in sediment content and flow rate may also cause damage to the power generation equipment. Fourth, ecological and environmental protection restrictions: While pursuing power generation efficiency, the protection of the ecological environment of Hukou Waterfall and its surroundings must be considered. Excessive development and utilization of waterfall resources may destroy the natural landscape, affect the ecological balance, and even cause geological disasters.

[0004] It can be seen that the low power generation efficiency problem faced by Hukou Waterfall when using the waterfall drop to generate electricity is a complex multi-factor problem. The uncertainty of water flow direction, large differences in water flow speed and high sediment content will all affect the power generation efficiency of the generator. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that when Hukou Waterfall uses the waterfall drop to generate electricity, the uncertainty of the water flow direction when the waterfall falls, the large difference in water flow speed, and the high sediment content in the waterfall will affect the power generation efficiency of the generator. A power generation device for Hukou Waterfall is provided. The device can adjust the water flow direction and water flow speed through the cooperation of a new river channel and a slope trough, thereby improving the power generation efficiency and the utilization rate of water resources.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A power generation device for Hukou Waterfall, comprising a first cofferdam, the first cofferdam is arranged at the periphery of Hukou, a second cofferdam is arranged outside the first cofferdam, and a river channel is formed between the first cofferdam and the second cofferdam;

[0008] The side walls of the first cofferdam and the second cofferdam are both provided with slope grooves. When the water in the river channel flows down through the slope grooves, a water flow drop is formed. A power generation unit is arranged below the water flow, and the water flow drop is used to drive the power generation unit to generate electricity.

[0009] Furthermore, in this embodiment, the inclinations of the slope grooves on the first cofferdam and the second cofferdam are the same.

[0010] Further, in this embodiment, the first cofferdam includes a first section, a second section and a third section;

[0011] The head end of the second section is vertically connected to the first section, and the end of the second section is vertically connected to the third section.

[0012] Furthermore, in this embodiment, the second cofferdam includes a fourth section, a fifth section and a sixth section;

[0013] The head end of the fifth section is connected to the fourth section, and the end of the fifth section is vertically connected to the sixth section.

[0014] Further, in this embodiment, the first section, the third section and the sixth section are arranged in parallel;

[0015] The second section and the fifth section are arranged in parallel.

[0016] Furthermore, in this embodiment, a sluice is also included, and the sluice is arranged on the first cofferdam.

[0017] Furthermore, in this embodiment, the power generation unit is a generator, and the generator is a hydro-turbine generator.

[0018] Furthermore, in this embodiment, a monitoring system is provided on both the first cofferdam and the second cofferdam, and the monitoring system is used to monitor the water flow velocity and water level in the river channel.

[0019] Furthermore, in this embodiment, a guide groove is provided on the end surface of the slope groove.

[0020] Furthermore, in this embodiment, a protective layer is laid on the end surface of the slope groove.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention discloses a power generation device for Hukou Waterfall, wherein a first cofferdam is arranged at the periphery of Hukou, and water flows in multiple directions formed at Hukou are initially diverted and constrained, and then a second cofferdam is arranged at intervals outside the first cofferdam, and a river channel is formed between the first cofferdam and the second cofferdam. The coordinated constraints of the two cofferdams can form a new water flow direction, and then the slope grooves on the first cofferdam and the second cofferdam are used to make the water flow flow down from the slope groove to form a new waterfall, thereby forming a new gravity drop, and driving the generator below to generate electricity. The device cleverly utilizes the water flow passing through the slope. The naturally formed drop in the trough improves the potential energy utilization efficiency of the water flow. The increase in the water flow drop is directly converted into more power sources for the power generation unit, thereby realizing efficient and sustainable energy conversion. The direction of the water flow is changed through the cooperation of the first cofferdam and the second cofferdam, which reduces the sediment carried by the water flow when it initially falls. Part of the sediment begins to settle during the flow in the new river channel, reducing the damage of the sediment to the power generation unit. The device can adjust the direction and speed of the water flow through the cooperation of the new river channel and the slope trough, thereby improving the power generation efficiency and the utilization rate of water resources.

[0023] Furthermore, in the present invention, the inclination of the sloped grooves on the first cofferdam and the second cofferdam is the same, which helps to maintain a consistent flow velocity and direction of water when passing through the two sloped grooves, reduces the energy loss of water during the conversion process, and enables the water flow to be more efficiently converted into kinetic energy of the power generation unit. At the same time, the inclination of the sloped grooves on the first cofferdam and the second cofferdam is the same, and the water flow conversion between the two is smoother, reducing the water flow turbulence or eddy current phenomenon that may be caused by the angle difference, protecting the cofferdam and sloped groove structure from unnecessary impact and wear, extending the service life of the equipment, and improving the efficiency of the entire power generation system.

[0024] Furthermore, in the present invention, the first cofferdam and the second cofferdam are respectively designed as a multi-section structure with vertical connection and parallel distribution, which can more finely control the flow direction and speed of the water flow. This design allows the water flow to flow along a predetermined path when passing through different cofferdam sections, reducing water flow turbulence and energy loss, and improving power generation efficiency. The multi-section cofferdam design significantly improves the stability and durability of the entire structure by increasing the contact area and support points of the cofferdam. The parallel distribution design of the first, third and sixth sections helps to form a continuous and stable water flow channel, allowing the water flow to pass smoothly and be converted into kinetic energy of the power generation unit. The parallel distribution of the second and fifth sections further refines the control of the water flow, so that the drop and flow rate of the water flow can be adjusted at different stages to adapt to the optimal working conditions of the power generation unit, thereby improving the power generation efficiency.

[0025] Furthermore, in the present invention, the setting of the water gate enables the water flow entering the power generation area to be accurately controlled and adjusted. By adjusting the opening degree of the water gate, the flow rate and speed of the water flow can be flexibly controlled to adapt to different power generation needs and water flow conditions. The synergy between the water gate and the first cofferdam 1 can more effectively guide the water flow into the power generation area and reduce the energy loss and waste of the water flow. By accurately controlling the flow direction and speed of the water flow, it can be ensured that the water flow impacts the power generation equipment such as turbines or water turbines in the best state, and when encountering abnormal water flow, the water gate can be quickly closed or the opening degree can be adjusted to reduce the impact and damage risk to the power generation equipment.

[0026] Furthermore, in the present invention, a monitoring system is provided on both the first cofferdam and the second cofferdam, and the monitoring system is used to monitor the water flow velocity and water level in the river channel, and timely discover abnormal water flow or potential hydrological disaster risks. Through long-term monitoring by the monitoring system, the operation data of the equipment under different working conditions can be obtained, providing a scientific basis for the preventive maintenance and maintenance of the equipment. This helps to timely discover and repair potential faults, reduce the occurrence of sudden faults, thereby extending the service life of the equipment and reducing operation and maintenance costs.

[0027] Furthermore, in the present invention, the guide groove can guide the direction of water flow, reduce the formation of vortex, and further improve the utilization rate of water energy.

[0028] Furthermore, in the present invention, a protective layer is laid on the end surface of the slope groove to reduce the wear of the groove wall by water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is the overall structure diagram of the present invention;

[0031] Figure 2 It is a schematic diagram of the guide trough on the slope trough of the present invention.

[0032] Among them: 1-first cofferdam; 2-Hukou; 3-water flow; 4-sluice gate; 5-second cofferdam; 6-first slope trough; 7-second slope trough; 8-generator. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0037] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0040] See also Figure 1 The embodiment of the present invention discloses a power generation device for Hukou Waterfall, which solves the problem in the prior art that when Hukou Waterfall uses the waterfall drop to generate electricity, the uncertainty of the water flow direction when the waterfall falls, the large difference in water flow speed, and the high sediment content in the waterfall will affect the power generation efficiency of the generator.

[0041] Specifically includes the following structures:

[0042] Example 1

[0043] The present embodiment discloses a power generation device for Hukou Waterfall, comprising a first cofferdam 1, wherein the first cofferdam 1 is arranged at the periphery of Hukou 2, a second cofferdam 5 is arranged at intervals on the outer side of the first cofferdam 1, and a river channel is formed between the first cofferdam 1 and the second cofferdam 5; slope grooves are arranged on the side walls of the first cofferdam 1 and the second cofferdam 5, and when water in the river channel flows down through the slope grooves, a new water flow drop is formed, and a power generation unit is arranged below the water flow, and the new water flow drop is used to drive the power generation unit to generate electricity.

[0044] Furthermore, in this embodiment, a first slope groove 6 is provided on the side wall of the first cofferdam 1, and a second slope groove 7 is provided on the side wall of the second cofferdam 5. When the water flows through the river channel of the first cofferdam 1 and the second cofferdam 5, it will flow down through the first slope groove 6 and the second slope groove 7 to form a new waterfall. At this time, the drop formed by the waterfall and the position of the water flow are both pre-set, so the power generation unit can be directly set below to drive power generation through the water flow drop. The first slope groove 6 and the second slope groove 7 cleverly utilize the drop naturally formed when the water flows through the slope groove. This design greatly improves the potential energy utilization efficiency of the water flow. The increase in the water flow drop is directly converted into more power sources for the power generation unit, thereby achieving efficient and sustainable energy conversion.

[0045] Furthermore, in the embodiment of the present invention, the first cofferdam 1 and the second cofferdam 5 reduce the direct impact of the water flow on the surrounding environment by diverting the water flow.

[0046] In this embodiment, the first cofferdam is arranged at the periphery of the Hukou, and the water flows in multiple directions formed at the Hukou are initially diverted and constrained. Then, the second cofferdam is arranged at intervals outside the first cofferdam, and a river channel is formed between the first cofferdam and the second cofferdam. The coordinated constraint of the two cofferdams can form a new water flow direction, and then the slope grooves on the first cofferdam and the second cofferdam are used to make the water flow flow down from the slope groove to form a new waterfall, thereby forming a new gravity drop, and driving the generator below to generate electricity. This device cleverly utilizes the drop naturally formed when the water flows through the slope groove, improves the potential energy utilization efficiency of the water flow, and the increase in the water flow drop is directly converted into more power sources for the power generation unit, thereby realizing efficient and sustainable energy conversion. The direction of the water flow is diverted by the coordination of the first cofferdam and the second cofferdam, and the sediment carried by the water flow when it initially falls is reduced. In the process of flowing in the new river channel, part of the sediment begins to settle, reducing the damage of the sediment to the power generation unit. This device can adjust the water flow direction and water flow speed through the coordination of the new river channel and the slope groove, improve the power generation efficiency, and also improve the utilization rate of water resources.

[0047] It should be noted that the Hukou 2 in this embodiment specifically refers to the position where the original waterfall falls naturally. At this time, the direction of the water flow 3 is uncertain. Figure 1 It can be seen that the water flow 3 at this time forms three directions.

[0048] Example 2

[0049] The present embodiment discloses a power generation device for Hukou Waterfall, comprising a first cofferdam 1, wherein the first cofferdam 1 is arranged at the periphery of Hukou 2, and a second cofferdam 5 is arranged at intervals on the outer side of the first cofferdam 1, so that a river channel is formed between the first cofferdam 1 and the second cofferdam 5; slope grooves are arranged on the side walls of the first cofferdam 1 and the second cofferdam 5, and when water in the river channel flows down through the slope grooves, a new water flow drop is formed, and a power generation unit is arranged below the water flow, and the new water flow drop is used to drive the power generation unit to generate electricity, and the inclinations of the slope grooves on the first cofferdam 1 and the second cofferdam 5 are the same.

[0050] Furthermore, in the embodiment of the present invention, the first slope groove 6 and the second slope groove 7 have the same inclination, which helps to maintain a consistent flow rate and direction of water when passing through the two slope grooves. This stability reduces the energy loss of water flow during the conversion process, allowing the water flow to be more efficiently converted into the kinetic energy of the power generation unit, thereby improving the efficiency of the entire power generation system, and when the first slope groove 6 and the second slope groove 7 have the same inclination, the water flow conversion between the two is smoother, reducing the water flow turbulence or eddy current phenomenon that may be caused by the angle difference. This coordination not only helps to improve the power generation efficiency, but also protects the cofferdam and slope groove structure from unnecessary impact and wear, and prolongs the service life of the equipment.

[0051] Example 3

[0052] This embodiment discloses a power generation device for Hukou Waterfall, comprising a first cofferdam 1, the first cofferdam 1 is arranged at the periphery of Hukou 2, a second cofferdam 5 is arranged at intervals outside the first cofferdam 1, a river channel is formed between the first cofferdam 1 and the second cofferdam 5; the side walls of the first cofferdam 1 and the second cofferdam 5 are both provided with a slope groove, when the water in the river channel flows down through the slope groove, a new water flow drop is formed, a power generation unit is arranged below the water flow, and the new water flow drop is used to drive the power generation unit to generate electricity, the first cofferdam 1 includes a first section, a second section and a third section, the head end of the second section is vertically connected to the first section, and the end of the second section is vertically connected to the third section. The second cofferdam 5 includes a fourth section, a fifth section and a sixth section, the head end of the fifth section is connected to the fourth section, and the end of the fifth section is vertically connected to the sixth section. The first section, the third section and the sixth section are arranged in parallel; the second section and the fifth section are arranged in parallel.

[0053] This embodiment makes specific restrictions on the first cofferdam 1 and the second cofferdam 5, wherein the first cofferdam 1 and the second cofferdam 5 are both connected by multiple segments, which can more precisely control the flow direction and speed of the water flow. This design allows the water flow to flow along a predetermined path when passing through different cofferdam sections, reduces water flow turbulence and energy loss, and improves power generation efficiency.

[0054] Furthermore, in the embodiment of the present invention, the joints of multiple segments are connected vertically, which can more effectively resist the impact force and lateral pressure of the water flow and reduce the deformation and damage risk of the cofferdam.

[0055] Furthermore, in the embodiment of the present invention, the connection method of multiple segments significantly improves the stability and durability of the entire structure by increasing the contact area and support points of the cofferdam.

[0056] Furthermore, in the embodiment of the present invention, the parallel distribution design of the first, third and sixth sections helps to form a continuous and stable water flow channel, so that the water flow can pass smoothly and be converted into kinetic energy of the power generation unit. The parallel distribution of the second and fifth sections further refines the control of the water flow, so that the drop and flow rate of the water flow can be adjusted at different stages to adapt to the optimal working conditions of the power generation unit, thereby improving the power generation efficiency.

[0057] It should be noted that the embodiment of the present invention does not limit the length and height of each segment. In actual applications, by adjusting parameters such as the height, length and inclination of each section of the cofferdam, it is possible to flexibly respond to changes in water flow in different seasons and under different flow conditions, thereby ensuring stable operation of the power generation equipment and efficient power generation.

[0058] Furthermore, in the embodiment of the present invention, the first cofferdam 1 and the second cofferdam 5 are constructed of environmentally friendly and durable materials, such as concrete, stone or high-performance composite materials, to reduce the impact on the environment and extend the service life.

[0059] Example 4

[0060] The present embodiment discloses a power generation device for Hukou Waterfall, comprising a first cofferdam 1, wherein the first cofferdam 1 is arranged at the periphery of Hukou 2, a second cofferdam 5 is arranged at intervals on the outer side of the first cofferdam 1, and a river channel is formed between the first cofferdam 1 and the second cofferdam 5; slope grooves are arranged on the side walls of the first cofferdam 1 and the second cofferdam 5, and when water in the river channel flows down through the slope grooves, a new water flow drop is formed, and a power generation unit is arranged below the water flow, and the new water flow drop is used to drive the power generation unit to generate electricity, and the power generation unit is a generator 8, and the generator 8 is a hydro-turbine generator.

[0061] In this embodiment, a high-efficiency hydro-generator is used to ensure long-term stable operation and high-efficiency energy conversion.

[0062] Example 5

[0063] The present embodiment discloses a power generation device for Hukou Waterfall, comprising a first cofferdam 1, wherein the first cofferdam 1 is arranged at the periphery of Hukou 2, a second cofferdam 5 is arranged at intervals on the outer side of the first cofferdam 1, and a river channel is formed between the first cofferdam 1 and the second cofferdam 5; slope grooves are arranged on the side walls of the first cofferdam 1 and the second cofferdam 5, and when water in the river channel flows down through the slope grooves, a new water flow drop is formed, and a power generation unit is arranged below the water flow, and monitoring systems are arranged on the first cofferdam 1 and the second cofferdam 5, and the monitoring systems are used to monitor the water flow velocity and water level in the river channel.

[0064] Furthermore, in the embodiment of the present invention, the monitoring system may be a sensor.

[0065] Furthermore, in the embodiment of the present invention, water flow anomalies or potential hydrological disaster risks can be discovered in a timely manner based on the data monitored by the monitoring system, and the operating data of the generator 8 can also be adjusted based on the monitored data.

[0066] Example 6

[0067] The present embodiment discloses a power generation device for Hukou Waterfall, comprising a first cofferdam 1, wherein the first cofferdam 1 is arranged at the periphery of Hukou 2, a second cofferdam 5 is arranged at intervals on the outer side of the first cofferdam 1, and a river channel is formed between the first cofferdam 1 and the second cofferdam 5; slope grooves are arranged on the side walls of the first cofferdam 1 and the second cofferdam 5, and when water in the river channel flows down through the slope grooves, a new water flow drop is formed, a power generation unit is arranged below the water flow, and a sluice gate 4 is also included, and the sluice gate 4 is arranged on the first cofferdam 1.

[0068] Furthermore, in the embodiment of the present invention, the sluice gate 4 is mainly used to regulate the water in the river channel formed by the first cofferdam 1 and the second cofferdam 5. In extreme weather or emergencies, such as floods or abnormal increase in water flow, the sluice gate 4 can be quickly closed or the opening degree can be adjusted to reduce the impact and damage risk to the power generation equipment and ensure the long-term stable operation of the equipment. The setting of the sluice gate 4 enables the power generation equipment to show higher flexibility when facing different seasons, different flow rates and different needs. By adjusting the opening degree of the sluice gate, the power generation can be adjusted according to actual needs to meet the electricity demand in different time periods. At the same time, this also provides convenience for the maintenance and overhaul of the equipment, and the water flow can be reduced or cut off when necessary.

[0069] Example 7

[0070] The present embodiment discloses a power generation device for Hukou Waterfall, comprising a first cofferdam 1, wherein the first cofferdam 1 is arranged at the periphery of Hukou 2, a second cofferdam 5 is arranged at intervals on the outer side of the first cofferdam 1, and a river channel is formed between the first cofferdam 1 and the second cofferdam 5; slope grooves are arranged on the side walls of the first cofferdam 1 and the second cofferdam 5, and when water in the river channel flows down through the slope grooves, a new water flow drop is formed, a power generation unit is arranged below the water flow, and a guide groove is arranged on the end face of the slope groove.

[0071] Furthermore, in the embodiment of the present invention, a texture with a concave-convex structure may be provided on the end surface of the slope groove.

[0072] Furthermore, in the embodiments of the present invention, the textures of the guide grooves and the concave-convex structure can guide the direction of water flow, reduce the formation of vortices, and further improve the utilization rate of water energy.

[0073] Example 8

[0074] The present embodiment discloses a power generation device for Hukou Waterfall, comprising a first cofferdam 1, wherein the first cofferdam 1 is arranged at the periphery of Hukou 2, a second cofferdam 5 is arranged at intervals on the outer side of the first cofferdam 1, and a river channel is formed between the first cofferdam 1 and the second cofferdam 5; slope grooves are arranged on the side walls of the first cofferdam 1 and the second cofferdam 5, and when water in the river channel flows down through the slope grooves, a new water flow drop is formed, a power generation unit is arranged below the water flow, and a protective layer is laid on the end surface of the slope grooves.

[0075] Specifically, in the embodiment of the present invention, the material of the protective layer can be paved with wear-resistant materials, including but not limited to special cement or resin, emulsion and other polymers as the main gel material, which helps to resist water erosion and reduce the wear of water on the end surface of the slope trough.

[0076] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A power generation device for Hukou Waterfall, characterized in that: The invention comprises a first cofferdam (1), wherein the first cofferdam (1) is arranged at the periphery of Hukou (2), a second cofferdam (5) is arranged at intervals outside the first cofferdam (1), and a river channel is formed between the first cofferdam (1) and the second cofferdam (5); The side walls of the first cofferdam (1) and the second cofferdam (5) are both provided with slope grooves. When water in the river channel flows down through the slope grooves, a water flow drop is formed. A power generation unit is arranged below the water flow, and the water flow drop is used to drive the power generation unit to generate electricity.

2. The power generation equipment for Hukou Waterfall according to claim 1, characterized in that: The slope grooves on the first cofferdam (1) and the second cofferdam (5) have the same inclination.

3. The power generation equipment for Hukou Waterfall according to claim 1, characterized in that: The first cofferdam (1) comprises a first section, a second section and a third section; The head end of the second section is vertically connected to the first section, and the end of the second section is vertically connected to the third section.

4. The power generation equipment for Hukou Waterfall according to claim 3, characterized in that: The second cofferdam (5) comprises a fourth section, a fifth section and a sixth section; The head end of the fifth section is connected to the fourth section, and the end of the fifth section is vertically connected to the sixth section.

5. The power generation equipment for Hukou Waterfall according to claim 4, characterized in that: The first, third and sixth sections are arranged in parallel; The second section and the fifth section are arranged in parallel.

6. The power generation equipment for Hukou Waterfall according to claim 1, characterized in that: It also comprises a sluice gate (4), wherein the sluice gate (4) is arranged on the first cofferdam (1).

7. The power generation equipment for Hukou Waterfall according to claim 1, characterized in that: The power generation unit is a generator (8), and the generator (8) is a hydro-turbine generator.

8. The power generation equipment for Hukou Waterfall according to claim 1, characterized in that: A monitoring system is provided on both the first cofferdam (1) and the second cofferdam (5), and the monitoring system is used to monitor the water flow velocity and water level in the river channel.

9. The power generation equipment for Hukou Waterfall according to claim 1, characterized in that: A guide groove is arranged on the end surface of the slope groove.

10. The power generation equipment for Hukou Waterfall according to claim 1, characterized in that: A protective layer is laid on the end surface of the slope groove.

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