A type of dragon plate hydroelectric turbine unit

Abstract

This invention discloses a dragon-pan hydroelectric turbine unit, which has a unit fixing chamber and an outer water tank within the unit platform. The outer water tank is connected to the outside and has two gates for water flow in and out. The outer water tank has a support protrusion to interrupt the flow in the middle of the outer water tank and to block the blade drive. The unit fixing chamber houses a generator set, which has an outer rotating disk. The outer rotating disk has several sets of vertical limiting devices, and each set of vertical limiting devices has a set of vertical moving parts. Blades are connected below the vertical moving parts. The blades are driven by water power to rotate the rotating disk in the water tank to achieve energy conversion. When the blades rotate to near the support protrusion, they automatically rise, cross the support protrusion, and then automatically descend to directly enter the water flow area. This directly increases the contact area and number of blades with water, completely solving the defect of insufficient water energy utilization.

Description

Technical Field

[0001] This invention belongs to the field of tidal power generation technology, specifically relating to a dragon-pan turbine generator unit used in ocean tidal power generation, river power generation, stream power generation, and peak-shaving and valley-leveling water storage power generation. Background Technology

[0002] For many years, many countries around the world have invested a lot of human and financial resources in technologies such as tidal power generation, river power generation, and peak-shaving and valley-level water storage power generation. Although there has been considerable progress, several problems have not yet been overcome.

[0003] 1. Seawater has a severe corrosive effect on power generation equipment, especially since the transmission and rotating equipment for power generation using seawater tides are all located in seawater, making it difficult to resist the strong corrosion of seawater.

[0004] 2. Because tidal resources are low-water-level resources in the field of hydropower, with a water level difference of only 2-5 meters, traditional hydropower projects are difficult to achieve large-scale power generation due to their low efficiency.

[0005] 3. Rivers and streams, due to their small water volume, small drop, and geographical limitations, make it difficult to construct large-scale water conservancy facilities, and most of them are not fully utilized.

[0006] 4. Peak-shaving and valley-level water storage power generation generally utilizes two reservoirs at different elevations. In order to make full use of the water difference, the higher reservoir is usually built on a mountain. When constructing such a power generation system, geographical resources are obviously limited, and peak-shaving and valley-level water storage power generation cannot be achieved for reservoirs in plain areas.

[0007] 5. Most existing hydroelectric power generation systems are vertically installed. The biggest advantage of this method is that it is relatively easy to install. However, the disadvantage of this type of vertical hydroelectric turbine is that due to the small tidal range of the ocean or the water level difference of other water sources, the contact surface of the blades and the number of blades in contact with water are limited, and the water flow path is too short. The energy in the water has not been fully utilized (i.e., the work is not fully done) before flowing out of the outlet, and the energy conversion cannot be fully realized.

[0008] In view of the shortcomings of the existing technology, it is very necessary for those skilled in the art to make structural improvements to the Longpan hydroelectric turbine unit so that it can be installed in the ocean, rivers and lakes, overcome various technical problems in the existing technology, prevent the power generation system from being corroded, and overcome the inability to achieve full conversion of electrical energy in rivers, streams and lakes due to small elevation differences. Summary of the Invention

[0009] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a Longpan hydroelectric turbine unit, which is designed to improve the overall structure from vertical installation to horizontal installation, and adopts adjustable settings to achieve energy conversion with maximum efficiency and realize electrical energy conversion.

[0010] The technical solution adopted by this invention to solve its technical problem is:

[0011] A Longpan hydro-turbine unit includes a unit platform, within which a unit fixing chamber and an outer water tank are provided; the outer water tank is connected to the outside and has two openings for water to enter and exit; the outer water tank is provided with a support protrusion to achieve flow interruption in the middle of the outer water tank and blade blocking drive.

[0012] The generator set is installed in the fixed room of the unit, and a generator is installed on the generator set. The speed-increasing end of the generator is connected to the outer rotating disk through a support beam. The outer rotating disk is equipped with several sets of vertical limiting devices. A set of vertical moving parts is provided for each set of vertical limiting devices. Blades are connected to the bottom of the vertical moving parts. Under the propulsion of water power, the blades drive the outer rotating disk to rotate to realize energy conversion. At the same time, they are lifted at the support protrusion to detach from the outer water tank.

[0013] The outer water tank has two openings that connect it to the outer perimeter, which are an inlet and an outlet, respectively. Each of the inlet and outlet is equipped with a liftable gate.

[0014] The vertical moving part is equipped with a support wheel, which provides sliding support when the vertical moving part rotates.

[0015] The top of the unit platform is equipped with a support rail, which works in conjunction with the support wheels to provide bottom support for the vertically moving part during horizontal and vertical lifting processes.

[0016] An auxiliary water channel is installed on the outer, flowable side of the outer water tank, and the water flow in the auxiliary water channel impacts the blades.

[0017] Both ends of the auxiliary waterway are provided with vertical guide channels, and guide blocks are provided in the vertical guide channels. The guide blocks constrain the water flow on the outlet side of the auxiliary waterway from impacting the blades.

[0018] The upper part of the auxiliary waterway is equipped with a lifting drive device, which realizes the vertical lifting of the guide block.

[0019] The blade includes at least two end frames, which are connected by a top connecting rod and a bottom connecting rod; an expansion blade is provided between the two end frames, which can increase the contact area with the water flow when rotating clockwise and counterclockwise.

[0020] The capacity-enhancing blade includes a top blade and a bottom blade. The bottom of the top blade has an upper through hole, and the top of the bottom blade has a lower through hole. The upper and lower through holes are provided with grooves to achieve a plug-in fit. A hinged rod connects the upper and lower through holes. The upper part of the top blade is provided with a through groove, which is a vertical strip and plugs into the top connecting rod. The bottom of the bottom blade is provided with a bottom through hole, which plugs into the bottom connecting rod.

[0021] The top of the unit platform is equipped with a manhole, through which a staircase, rope ladder, or elevator is installed to connect with the unit's fixed compartment.

[0022] The gate is equipped with a gantry frame at the top, and a hoist is installed at the top of the gantry frame. The hoist is equipped with lifting ropes, which are used to lift the gate.

[0023] The present invention has the following beneficial effects: Through the above design, the present invention sets up a unit fixing chamber and an outer water tank within the unit platform; the outer water tank is connected to the periphery and has two gates for water flow in and out; the outer water tank is equipped with a support protrusion to achieve flow interruption in the middle of the outer water tank and blade blocking drive; the unit fixing chamber is equipped with a generator set, and the generator set is equipped with an outer rotating disk, which is equipped with several sets of vertical limiting devices. Corresponding to each set of vertical limiting devices, a set of vertical moving parts is set, and blades are set on the vertical moving parts. Under the propulsion of water power, the blades drive the outer rotating disk to rotate to achieve energy conversion. When the blades rotate to near the support protrusion, they automatically rise, cross the support protrusion, and then automatically descend, directly entering the water flow area, thereby directly increasing the contact area and number of blades with water, completely solving the defect of water energy not being fully utilized.

[0024] This invention can be installed and used in oceans, rivers, and lakes. By connecting with various types of reservoirs, it can be used for tidal, water flow, peak shaving, valley filling, and other working conditions, maximizing the conversion of electrical energy. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Figure 1 This is a schematic diagram of the three-dimensional assembly structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the generator set's three-dimensional structure.

[0028] Figure 3 This is a schematic diagram of the three-dimensional structure of the generator platform;

[0029] Figure 4 for Figure 1 Enlarged schematic diagram of the structure of region A in the middle;

[0030] Figure 5 for Figure 3 Enlarged schematic diagram of the structure of region B in the middle;

[0031] Figure 6 for Figure 1 Schematic diagram of the cross-sectional structure along the C-axis;

[0032] Figure 7 for Figure 1 Schematic diagram of the main structure of the medium gantry frame;

[0033] Figure 8 This is a schematic diagram of the three-dimensional structure of the blade;

[0034] Figure 9 This is a schematic diagram of the end frame structure of the blade;

[0035] Figure 10 This is a schematic diagram of the connection structure between the top and bottom blades of a blade.

[0036] Figure 11 This is a layout diagram for a dual-reservoir unidirectional tidal power generation system.

[0037] Figure 12 This is a layout diagram for a single reservoir with bidirectional tidal power generation.

[0038] Figure 13 Layout diagram for power generation along rivers and streams (I);

[0039] Figure 14 Layout diagram for power generation along rivers and streams (II);

[0040] Figure 15 Layout diagram for peak shaving and valley leveling hydropower generation;

[0041] In the diagram, 1. Unit platform, 11. Unit fixed compartment, 12. External water tank, 13. Auxiliary waterway, 14. Inlet gate, 15. Outlet gate, 16. Support protrusion, 17. Inlet, 171. Bottom passage, 18. Precast screw, 19. Vertical guide channel, 20. Gate guide channel, 2. Inlet gantry frame, 3. Generator set, 30. Generator, 31. Speed ​​increase module, 32. Cross support beam, 33. External rotating disk, 34. Vertical limit guide column, 35. Vertical moving extension rod, 36. Support wheel, 4. Blade, 41. End frame, 411. End frame connection end, 412. Bottom connecting rod, 413. Top connecting rod, 42. Top blade, 421. Through reinforcement, 422. Through groove, 42 3. Insertion groove; 424. Upper through hole; 43. Bottom blade; 431. Lower through hole; 432. Insertion protrusion; 433. Bottom through hole; 5. Support rail; 51. Rail support rod; 6. Outlet gantry; 61. Frame; 62. Gate; 63. Hoist; 64. Guide block hoist; 7. Guide block; 71. Guide block protrusion; 8. Reservoir dam; 81. Reservoir gate I; 82. Reservoir gate II; 83. Unit dam; 84. Generator set; 85. First reservoir; 86. Second reservoir; 87. Linhai reservoir; 88. Linhai reservoir gate; 89. Upstream high-level waterway; 891. Waterway inlet gate; 892. Waterway outlet gate; 90. River gate; 91. Reservoir gate; 91. Low reservoir; 92. High reservoir. Detailed Implementation

[0042] The present invention will be further described below through embodiments.

[0043] As shown in the attached figure, a Longpan hydroelectric turbine unit includes a prefabricated unit platform 1. The unit platform 1 contains a circular, enclosed unit mounting chamber 11 and an outer water tank 12. The outer water tank 12 is connected to an external water source and has two openings for water inflow and outflow. An inlet gate 14 and an outlet gate 15 are respectively installed on the two openings. Smooth support protrusions 16 are provided inside the outer water tank 12 to achieve flow interruption in the middle of the tank and blade blocking drive. A manhole 17 is provided at the top of the unit platform 1, and a staircase within the manhole 17 connects it to a bottom passage 171. Personnel can access the unit mounting chamber 11 from the bottom passage 171 for convenient equipment installation and maintenance.

[0044] The upper parts of the inlet gate 14 and the outlet gate 15 are respectively equipped with an inlet gantry 2 and an outlet gantry 6. The structural principles of the inlet gantry 2 and the outlet gantry 6 are exactly the same, such as... Figure 7As shown, taking the water outlet gantry 6 as an example, a hoist 63 is installed on the top of the gantry frame 61, and a hoisting rope is installed on the hoist 63. The gate 62 is lifted by the hoisting rope. This structure can control whether to supply water to the outer water tank 12.

[0045] The generator set 3 is installed in the fixed chamber 11 of the unit. A generator 30 is installed on the generator set 3. A speed-increasing module 31 is installed on the generator 30. A cross-shaped support beam 31 is fixed to the speed-increasing module 31, connecting to an outer rotating disk 33. Several sets of vertical limiting guide posts 34 are evenly distributed on the outer rotating disk 33. A vertical moving extension rod 35 is installed corresponding to each set of vertical limiting guide posts 34. A blade 4 is installed at the lower end of the vertical moving extension rod 35. Under the propulsion of water power, the blade 4 drives the outer rotating disk 33 to rotate, realizing energy conversion. Simultaneously, it is lifted at the support protrusion 16 to detach from the outer water tank 12. Two support wheels 36 are installed at the bottom of the extension section of the vertical moving extension rod 35. The two support wheels 36 are respectively located on both sides of the blade 4, providing sliding support when the vertical moving extension rod 35 rotates. To achieve stability during sliding, the top of the unit platform 1 is provided with two support rails 5. The support rails 5 cooperate with the support wheels 36 to provide bottom support for the vertical moving extension rod 35 during horizontal and vertical lifting. The two support rails 5 are inclined, with the highest point at the support protrusion 16. The support is achieved through the bottom rail support rod 51.

[0046] With the above structural configuration, in actual operation, the Longpan hydroelectric turbine unit disclosed in this invention, driven by water power, drives the outer rotating disk 33 to rotate and achieve energy conversion. When the blade 4 rotates to a position close to the support protrusion 16, it automatically rises under the constraint of the vertical limiting guide column 34, crosses the support protrusion 16, and then automatically descends. Its rising and falling trajectory follows the trajectory of the support protrusion 16. After the descending blade 4 enters the water flow area, it directly increases the area and number of blades in contact with water, completely solving the defect of water energy not being fully utilized.

[0047] In actual operation, water flows within the outer water tank 12 and impacts the blades 4, thereby converting the kinetic energy of the water flow into electrical energy. This structure can achieve energy conversion with high efficiency. Therefore, the energy of the water flow at the end of the outer water tank 12 is significantly reduced. To further enhance the driving force of the blades 4, this technical solution also provides an auxiliary water channel 13 on the external flowable side of the outer water tank 12, which impacts the blades 4 through the water flow within the auxiliary water channel 13. Because there are no obstructions inside the auxiliary water channel 13, it can directly guide the water flow with high kinetic energy to the end of the outer water tank 12 to assist in impacting the blades 4, thereby increasing the rotational speed of the outer rotating disk 33 and achieving maximum energy conversion efficiency.

[0048] When introducing the auxiliary waterway 13 to achieve secondary impact on the blade 4, considering that the Longpan hydroelectric turbine unit can operate in both clockwise and counterclockwise directions, the auxiliary waterway 13 is set parallel to the outer water tank 12. This structure prevents the water flow at the end of the auxiliary waterway 13 from directly impacting the blade 4, thus preventing the kinetic energy conversion from achieving maximum efficiency. The applicant proposes the following structure to improve efficiency, such as... Figure 4 , 5 As shown, vertical guide grooves 19 are provided at both ends of the auxiliary waterway 13, and guide blocks 7 are provided in the vertical guide grooves 19. The guide blocks 7 are provided with guide block protrusions 71 that are inserted into the vertical guide grooves 19. At the upper part of the auxiliary waterway 13, a guide block lifting machine 64 is provided on the frame 61 of the gantry frame and connected to the guide blocks 7. The guide blocks are vertically lifted by a lifting drive device. The sides of the guide blocks 7 are arc-shaped, which can constrain the water flow towards the blades 4. With this structure, guide blocks 7 are provided at both ends of the auxiliary waterway 13. The guide blocks 7 on the water inlet side are in a lifted state, and the guide blocks 7 on the water outlet side constrain the water flow towards the blades 4 in the auxiliary waterway 13. When not in use, the guide blocks 7 fall into the auxiliary waterway 13 under their own weight.

[0049] To maximize the energy conversion efficiency of this system, the applicant also discloses a blade capable of increasing operating capacity, such as... Figure 8 , 9As shown in Figure 10, the blade 4 includes two end frames 41, one at the front and one at the back. The top of each end frame 41 is provided with an end frame connecting end 411, which is connected and fixed to the vertical moving extension rod 35. The two end frames 41 are connected by a top connecting rod 413 and a bottom connecting rod 412. An expansion blade is provided between the two end frames 41, which can increase the contact area with the water flow when rotating clockwise and counterclockwise. Its specific structure is as follows: The capacity-enhancing blade includes a top blade 42 and a bottom blade 43. The bottom of the top blade 42 is provided with an upper through hole 424, and the top of the bottom blade 43 is provided with a lower through hole 431. The upper through hole 424 and the lower through hole 431 are respectively provided with an insertion groove 423 and an insertion protrusion 432 for insertion and engagement. The insertion and engagement are achieved through the groove and the protrusion. A hinge rod connects the upper through hole 424 and the lower through hole 431. The upper part of the top blade 42 is provided with a through reinforcement part 421, and a through groove 422 is provided in the through reinforcement part 421. The through groove 422 is vertically elongated and is inserted and engaged with the top connecting rod 413. The bottom of the bottom blade 43 is provided with a bottom through hole 433, and the bottom through hole 433 is inserted and engaged with the bottom connecting rod 412.

[0050] With this structural design, the capacity-enhancing blade includes a top blade 42 and a bottom blade 43. After the two are hinged together, they can bend into an obtuse angle structure after being impacted by water flow, and can be folded in both clockwise and counterclockwise directions, thereby increasing the contact area between the water flow and the blade.

[0051] Through the above explanation, the structural advantages of this Longpan hydropower turbine unit can be demonstrated through the application of specific embodiments. The Longpan hydropower turbine unit disclosed in this invention can be used for three power generation purposes: the first purpose: ocean tidal power generation; the second purpose: power generation of all rivers and streams; and the third purpose: peak shaving and valley leveling water storage power generation.

[0052] The specific usage methods of these three power generation modes are summarized as follows:

[0053] Example 1: Application of Dual-Cavity Unidirectional Tidal Power Generation Fabric

[0054] like Figure 11As shown, this embodiment constructs a first reservoir 85 and a second reservoir 86 via a reservoir dam 8. A generator dam 83 is installed between the first reservoir 85 and the second reservoir 86, and several generator sets 84 are installed on the generator dam 83. Both the first reservoir 85 and the second reservoir 86 are equipped with reservoir gate I 81 and reservoir gate II 82. This structure can be integrated with an external control system. During operation, when the tide recedes to its lowest point, the water level of the second reservoir 86 is lowered to its lowest level. When the tide rises to its highest level for the day, the first reservoir 85 is filled, and simultaneously, water is released into the second reservoir 86, driving the generator sets 84 to generate electricity.

[0055] When the tide recedes to a level lower than that of the second reservoir 86, the second reservoir 86 begins to release water into the sea, and stops when the water level reaches its lowest point.

[0056] When the tide rises above the water level of the first reservoir 85, water is added to the first reservoir 85 and water is released from the second reservoir 86, simultaneously driving the generator unit 84 to operate and generate electricity. This initiates a continuous cycle of power generation.

[0057] Example 2: Single-reservoir bidirectional tidal power generation

[0058] like Figure 12 As shown, this embodiment includes a reservoir 87, a reservoir gate 88 is installed on the reservoir dam 8 surrounding the reservoir 87, and a generator set 84 is installed on the generator dam 83. In conjunction with an external control system, its operation process is as follows:

[0059] ① Tidal power generation:

[0060] First, when the tide recedes to its lowest point, open the sluice gate 88 of the Linhai Reservoir to discharge as much water as possible from the Linhai Reservoir 87 into the ocean until the lowest water level is reached.

[0061] When the tide rises to a level sufficient to drive the generator set 84 and generate electricity, the gate 88 of the adjacent reservoir is opened to release water into the reservoir for power generation. Once the water level in both the ocean and the reservoir is close to the day's high tide level and the difference in water levels is too small to drive the generator set 84, operation of the generator set 84 is suspended. When the tide recedes and the water level difference is sufficient for power generation, the power generation equipment automatically reverses to generate electricity during the receding tide.

[0062] ②Electrification during low tide:

[0063] During low tide power generation, when the tide recedes to a point where the sea level is below the 87-level water level of the adjacent reservoir and the water level difference is sufficient to drive the generator unit 84 to generate electricity, the power generation equipment automatically reverses to generate electricity during low tide, until the seawater begins to rise and reaches the level of the reservoir water, at which point it stops. When the seawater level is higher than the 87-level water level of the adjacent reservoir and the generator unit 84 can generate electricity, it automatically switches to generating electricity during high tide, and this cycle continues.

[0064] Example 3: River and Stream Power Generation I

[0065] like Figure 13 As shown, an upstream high-level waterway 89 is drawn from the side of the main river or stream. The upstream high-level waterway 89 is equipped with a waterway inlet gate 891 and a waterway outlet gate 892. A generator set 84 is installed between the waterway inlet gate 891 and the waterway outlet gate 892. When the water flows from top to bottom in the upstream high-level waterway 89, it naturally impacts the generator set 84 to achieve energy conversion.

[0066] Example 4: River and Stream Power Generation II

[0067] like Figure 14 As shown, a unit dam 83 is directly set up in the main river channel or stream to intercept the river or stream. A generator set 84 and a river gate 90 are set on the unit dam. With this structure, the generator set 84 can be operated directly through the high ground water level to realize energy conversion.

[0068] Example 5: Peak-shaving and valley-leveling hydropower generation

[0069] like Figure 15 As shown, using ordinary lakes and reservoirs, a generator dam 83 is built at an appropriate location (usually in the middle of the reservoir) within the lake or reservoir, depending on the geographical conditions. One or more generator sets 84 and at least one channel gate 90 are installed on the generator dam 83, forming a low reservoir 91 and a high reservoir 92 on the left and right sides of the generator dam 83. When there is low electricity demand at night, water is pumped from the low reservoir 91 to the high reservoir 92 opposite the channel gate 90, causing the water level of the low reservoir 91 to drop and creating a water level difference. During peak electricity demand periods, water from the high reservoir 92 flows to the low reservoir 91 through the generator set 84, thereby achieving the effect of power generation.

Claims

1. A Longpan hydroelectric turbine unit, comprising a unit platform, characterized in that: The unit platform is equipped with a unit fixing chamber and an outer water tank; the outer water tank is connected to the outside and has two openings for water to enter and exit; the outer water tank is equipped with a support protrusion to achieve flow interruption in the middle of the outer water tank and blade blocking drive. The generator set is installed in the fixed room of the unit. The generator set is equipped with an outer rotating disk. The outer rotating disk is equipped with several sets of vertical limiting devices. Each set of vertical limiting devices is equipped with a set of vertical moving parts. The vertical moving parts are equipped with blades. The blades are driven by water power to rotate the rotating disk to realize energy conversion. At the same time, they are lifted at the support protrusion to get away from the outer water tank. The outer water tank is connected to the outer perimeter by two openings, which are an inlet and an outlet, respectively. Each of the inlet and outlet is equipped with a liftable gate. The vertical moving part is equipped with a support wheel, which provides sliding support when the vertical moving part rotates. The top of the unit platform is equipped with a support rail, which works in conjunction with the support wheels to provide bottom support for the vertically moving part during horizontal and vertical lifting processes. The blade includes at least two end frames connected by a top connecting rod and a bottom connecting rod. An expansion blade is provided between the two end frames, automatically increasing the contact area with the water flow when rotated clockwise and counterclockwise. The expansion blade includes a top blade and a bottom blade. The bottom of the top blade has an upper through hole, and the top of the bottom blade has a lower through hole. The upper and lower through holes have grooves for interlocking. A hinged rod connects the upper and lower through holes. The upper part of the top blade has a vertically elongated through groove that interlocks with the top connecting rod. The bottom of the bottom blade has a bottom through hole that interlocks with the bottom connecting rod.

2. The Longpan hydroelectric turbine unit as described in claim 1, characterized in that: An auxiliary water channel is installed on the outer, flowable side of the outer water tank, and the water flow in the auxiliary water channel impacts the blades.

3. The Longpan hydroelectric turbine unit as described in claim 2, characterized in that: Both ends of the auxiliary waterway are provided with vertical guide channels, and guide blocks are provided in the vertical guide channels. The guide blocks constrain the water flow on the outlet side of the auxiliary waterway from impacting the blades.

4. The Longpan hydroelectric turbine unit as described in claim 3, characterized in that: The upper part of the auxiliary waterway is equipped with a lifting drive device, which realizes the vertical lifting of the guide block.

5. The Longpan hydroelectric turbine unit as described in claim 1, characterized in that: The top of the unit platform is equipped with a manhole, through which a staircase, rope ladder, or elevator is installed to connect with the unit's fixed compartment.

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