TWI880811B - River irrigation channel hydraulic power generation device, system and screw unit thereof - Google Patents

Abstract

The present invention relates to a hydraulic power generation device, system and screw unit thereof, which are mainly installed in water flow fields such as rivers and irrigation channels, so that the micro-flowing water enters a pre-cast outer tube at a high speed to drive a spiral transmission shaft with an Archimedean screw disposed inside the outer tube, wherein the spiral transmission shaft innovatively adopts a three-piece outer spiral blade set to assist the rotation of the spiral transmission shaft, and at the same time, a linkage and a stepless speed increaser are added above the tail end of the spiral transmission shaft to generate torque and rotate a generator, so that the flow rate of the micro-flowing water can reach the power generation speed requirement of the hydraulic generator.

Description

River irrigation channel hydraulic power generation device, system and screw unit thereof

The present invention relates to the field of a renewable energy device, and more particularly to the scope of providing a hydroelectric power generation device installed in a river irrigation channel.

Hydropower refers to a renewable energy source that uses the energy of water flow to generate electricity. In rivers and irrigation channels, the flow rate of water provides the power resource for hydroelectric generators, which can be converted into kinetic energy through appropriate equipment and mechanical technology to drive the generator to generate electricity. Moreover, compared with traditional energy devices, hydropower generation in rivers and channels has many advantages such as lower environmental impact, no greenhouse gas and other pollutant emissions, and relatively less consumption of water resources, making hydropower one of the important projects for the development of renewable energy, and has been encouraged and supported by the government and society.

As the global demand for renewable energy increases, some countries have begun to build large-scale hydropower plants in rivers and channels to provide clean energy to a wider area and promote local economic development. Furthermore, in recent years, global hydropower technology has been continuously innovating and improving, including improvements in turbine design and increased generator efficiency.

A known hydroelectric power generation device installed in a river or a canal, such as Chinese Patent No. CN115467774A "Micro Hydroelectric Power Generation Device", discloses that a transmission mechanism is provided so that water flows through a spiral blade and drives a transmission shaft to rotate. After the transmission shaft rotates, the generator is synchronously driven to generate electricity, and the electric energy is used for a simple power generation and lighting device in mountainous areas and rural areas, thereby achieving an energy-saving effect; in addition, one side of the spiral blade is raised, and when water flows from upstream, it is blocked by the raised baffle. When the water level rises, the water will flow out through the spiral blade, thereby driving the spiral blade and the shaft to rotate, thereby achieving the purpose of generating electricity.

However, the spiral blade of the above-mentioned conventional hydraulic power generation device is configured as a single spiral blade wound around a drive shaft, and requires a relatively large water flow power to be driven; furthermore, the height position of the spiral blade of the above-mentioned conventional hydraulic power generation device is fixed relative to the ground, and the height position cannot be adjusted along with the water level. If the river or channel is at a low water level, power generation cannot be performed.

Therefore, in view of the above-mentioned problems that the known hydroelectric generating devices need large hydraulic kinetic energy to activate power generation and their height position cannot be automatically adjusted with the water level, the inventors of the present invention have devoted great efforts to research and develop a river irrigation channel hydroelectric generating device, system and screw unit thereof. Therefore, the main purpose of the present invention is to provide a screw unit that can generate electricity by driving a micro-hydraulic flow with low potential energy; the secondary purpose of the present invention is to provide a hydroelectric generating device that can float with the water level; another purpose of the present invention is to provide a plurality of hydroelectric generating devices that can be connected in series or/and in parallel to form a hydroelectric generating system; another purpose of the present invention is to provide a hydroelectric generating device that can clean the flowing water field.

Therefore, in order to achieve the above-mentioned purpose, the spiral unit of the present invention uses the following technical means, which include: an outer tube, an inner spiral blade group is provided on its inner wall, and two hubs are provided at an inlet and an outlet of the outer tube; and a spiral transmission shaft, an outer spiral blade group is provided around a rotating shaft, and the two ends of the rotating shaft are connected to the two hubs, and the outer spiral blade group corresponds to the inner spiral blade group; by setting the inner spiral blade group and the outer spiral blade group as at least one spiral blade to form at least one spiral flow path diameter, low potential energy micro-hydraulic flow drive is provided.

The inner diameter of the inner spiral blade set is larger than the outer diameter of the outer spiral blade set; and the inner spiral blade set and the outer spiral blade set of the spiral transmission shaft are both configured to be composed of three spirals to form three spiral flow path diameters.

A manifold channel is provided on at least one side of the outer tube; a frame is additionally provided on the outside of the outer tube, and the two hubs extend downward from the two ends of the frame toward the central axis of the frame; two retracted portions are additionally provided between the inlet and the outlet of the outer tube and the two ends of the frame, and/or a baffle is respectively provided on the frame adjacent to the two sides of the inlet of the outer tube.

The river irrigation channel hydraulic power generation device of the present invention uses the above-mentioned screw unit, which includes: the screw unit, the tail end of the screw unit is set as a power output end; and a generator unit, which is set at the top end of the frame where the screw unit is set, and a connecting piece is set between a power input end of the generator unit and a power output end of the screw unit.

The invention also includes a floating unit, which is connected to the top of the frame of the screw unit and is partially close to the surrounding of the generator unit; and a plurality of collars are respectively arranged on both sides of the frame of the screw unit.

The generator set further comprises a generator connected to a stepless speed increaser, and the stepless speed increaser is provided with the power input end.

In addition, the river irrigation channel hydraulic power generation system of the present invention uses the above-mentioned river irrigation channel hydraulic power generation device, which includes: a fixed frame, which further includes two side frames or a suspension frame, and the two side frames or the suspension frame are respectively installed on the two sides of a water flow field; and at least one river irrigation channel hydraulic power generation device is connected between the two side frames or at the bottom of the suspension frame.

The two side frames are respectively provided with a plurality of piles, and the frame of the at least one screw unit is provided with a plurality of collars which are all inserted into the plurality of piles.

There are several river irrigation channel hydraulic power generation devices, and the several river irrigation channel hydraulic power generation devices are connected in series or/and in parallel by several connectors and wires, and then several sleeves corresponding to the several piles are inserted into the corresponding piles.

A floating object collecting device is installed at the upstream front end of the river irrigation channel hydropower generation system, and the floating object collecting device further includes a net, a conveyor belt and a collecting box, wherein the net is arranged across the two banks of the water flow field and is partially inclined, and the conveyor belt combined with the collecting box is arranged on at least one bank of the water flow field and close to the net.

The present invention uses the above technical means to achieve the following effects:

1. The spiral unit of the present invention forms a rotary hydrology by configuring at least one or more spiral blades for the inner spiral blade group and the outer spiral blade group to form at least one or more spiral flow path diameters to assist the spiral drive shaft to rotate, thereby providing low-potential micro-hydraulic flow to drive power generation, breaking the myth that existing hydropower generation relies on high potential energy and high potential energy; in other words, if the 17 farmland water conservancy departments in the country can be used well, and according to the water flow speed of each canal head of each water conservancy department, the unit, device and system of the present invention can be adopted, which will be beneficial to the green energy supply in the country.

2. The hydroelectric power generation device of the present invention can float along with the water level of the water flow field of the river irrigation channel. In other words, it can generate electricity regardless of whether the water level of the water flow field is high or low, thereby improving the efficiency of hydroelectric power generation.

3. The hydraulic power generation system of the present invention can be connected in series or/and in parallel through a plurality of connectors and wires according to the width, length and depth of the water flow field to achieve the economic benefits of the desired power generation needs.

4. The hydraulic power generation system of the present invention can be equipped with a floating object collection device at its upstream front end, so that floating objects such as garbage, branches or fallen leaves floating in the water field can be collected through the floating object collection device to prevent such floating objects from interfering with and affecting the hydraulic power generation of the present invention.

The present invention relates to a river irrigation channel hydroelectric power generation device, system and screw unit thereof, which are mainly installed in water flow fields such as rivers and irrigation channels, such as farm canals, Taipower hydroelectric power tail water, etc., to develop water power renewable energy by driving the kinetic energy of micro-water flow. The screw unit A is mainly provided to sink into the river or irrigation channel, and convert the linear flow kinetic energy of the micro-water flow in the water flow field into rotational kinetic energy, so as to subsequently provide driving generators for power generation, and the embodiment of the screw unit A, as shown in Figures 1, 3 and 4, includes: an outer tube 1 and a screw drive shaft 2.

The outer tube 1 has an inner spiral blade set 11 or no inner spiral blade set 11 on its inner wall 10 by pre-casting or forming processing, and two hubs 14 are provided at an inlet 12 and an outlet 13 of the outer tube 1. The spiral transmission shaft 2 is provided with an outer spiral blade set 22 wound around the outer periphery of a rotating shaft 21, and the two ends of the rotating shaft 21 are connected to the two hubs 14, so that the spiral transmission shaft 2 can rotate relative to the outer tube 1, and the inner diameter (D) of the inner spiral blade set 11 is larger than the outer diameter (d) of the outer spiral blade set 22, so that the spiral transmission shaft 2 can be installed in the outer tube 1; but if the inner wall 10 of the outer tube 1 is not provided with the inner spiral blade set 11, the outer diameter (d) of the outer spiral blade set 22 is slightly smaller than the hole diameter of the inner wall 10 of the outer tube 1, so that the spiral transmission shaft 2 can be installed in the outer tube 1.

Furthermore, the outer spiral blade set 22 corresponds to the inner spiral blade set 11, and both the inner spiral blade set 11 and the outer spiral blade set 22 are configured to be composed of at least one or several spiral blades (preferably three spiral blades). Therefore, at least one, several or three spiral blades of the inner spiral blade set 11 and the outer spiral blade set 22 are used to jointly form at least one, several or three spiral flow path paths 3, thereby providing a low-potential micro-hydraulic flow power to drive the spiral transmission shaft 2 to rotate.

Specifically, a preferred embodiment of the screw unit A of the present invention, as shown in FIGS. 2 to 4 , is provided with a frame 4 on the outside of the outer tube 1, and the two hubs 14 extend downward from the two ends of the frame 4 toward the central axis x of the frame 4, wherein the hub 14 further includes a bearing to receive the end of the screw drive shaft 2; two retracted portions 41 are provided between the inlet 12 and the outlet 13 of the outer tube 1 and the two ends of the frame 4, and/or a baffle 44 is provided on the frame 4 adjacent to the two sides of the inlet 12 of the outer tube 1 (as shown in FIG. 12 ), and the retracted portion 41 or the baffle 44 has the function of guiding water flow into the outer tube 1. The frame 4 is advantageous for adjacent connection with other components of the present invention, for example, the floating unit 6, the generator set 5 and other components.

In addition, a manifold channel 15 (as shown in FIG. 3 ) can be added on one or both sides of the outer tube 1 . The manifold channel 15 can increase the water intake of the outer tube 1 of the screw unit A, allowing more water flow to drive the shaft 21 to rotate quickly, thereby improving the power generation efficiency of subsequent hydropower generation.

The river irrigation channel hydraulic power generation device B1; B2 of the present invention, as shown in Figures 5 to 8, is mainly used to convert the micro-flow of the water field of the river and irrigation channel into rotational kinetic energy, and then convert the rotational kinetic energy into electrical energy. Therefore, the above-mentioned screw unit A is additionally provided with: a generator unit 5, which is arranged at the top of the frame 4 of the screw unit A, and a power generator unit 5 is arranged at the generator unit 5. A linking member 54 is connected between the input end 53 and a power output end 23 of the screw unit A, wherein the power output end 23 and the linking member 54 are preferably configured as a gear and a chain respectively; and a floating unit 6 is connected to the top end of the frame 4 of the screw unit A and is partially located near the generator unit 5, wherein the floating unit 6 can be a hollow tube, a tubular or spherical air bag. It is particularly noted that the floating unit 6 is not a necessary component of the river irrigation channel hydraulic power generation device B of the present invention, and can also be discarded (as shown in FIG. 11 ) to form a river irrigation channel hydraulic power generation device B2 without a floating function.

The preferred embodiment of the river irrigation channel hydraulic power generation device B1 of the present invention is to respectively provide a plurality of collars 42 on the sides of the frame 4 provided with the screw unit A, and the plurality of collars 42 can be used for the function of hoisting and can also be used for the positioning function of the river irrigation channel hydraulic power generation device B1 itself when floating. The generator set 5 of the preferred embodiments mentioned above further includes a generator 51 connected to a stepless speed increaser 52, and the stepless speed increaser 52 is provided with the power input end 53, and the power input end 53 is also preferably set as a gear plate.

The river irrigation channel hydropower generation system C of the present invention includes a fixed frame 7, as shown in Figures 5 to 8 and Figures 11 to 14, which mainly provides a screw unit A for embedding and positioning a river irrigation channel hydropower generation device B1 with a floating function and a river irrigation channel hydropower generation device B2 without a floating function, and sinks into a waterway to facilitate the conversion of the kinetic energy of the micro-flow in the water field of the river and the irrigation channel into electrical energy, wherein the fixed frame 7 further includes two side frames 71 or a suspension frame 72, and the two side frames 71 or the suspension frame 72 are respectively erected on the banks 91 on both sides of a water field 9. When the fixed frame 7 is set as two side frames 71, each side frame 71 is respectively provided with a plurality of piles 711, and the plurality of piles 711 are sunk in the water. Then, the river irrigation channel hydraulic power generation device B1 is connected between the two side frames 71, that is, the several rings 42 provided on the frame 4 of the screw unit A corresponding to the several piles 711 are all inserted into the several piles 711, so that the screw unit A can float on the water level of the water flow field 9, so that the river irrigation channel hydraulic power generation device B1 can sink into the water flow field 9.

When the fixing frame 7 is set as the suspension frame 72, as shown in Figures 11 to 14, the suspension frame 72 is used to replace the two side frames 71, and the river irrigation channel hydroelectric power generation device B2 is connected to the bottom of the suspension frame 72, and the suspension frame 72 is composed of one or more U-shaped rods, and the two ends of the suspension frame 72 are fixed to the two banks 91 of the water flow field 9, so as to facilitate the river irrigation channel hydroelectric power generation device B2 to sink into the water flow field 9. In particular, the river irrigation channel hydroelectric power generation device B2 is more suitable for the water flow field 9 where the water level is relatively stable.

In addition, please refer to FIG. 14 , the river irrigation channel hydroelectric power generation system C of the present invention may further include a floating object collection device 8, which is installed at the upstream front end of the river irrigation channel hydroelectric power generation system C to collect floating objects such as garbage and debris in the water flow field 9, and the floating object collection device 8 further includes a net 81, a conveyor belt 82 and a collection box 83, wherein the net 81 is arranged across the two side banks 91 of the water flow field 9, and the net 81 is preferably a local The conveyor belt 82 is arranged obliquely, and the conveyor belt 82 combined with the collecting box 83 is installed on at least one side of the bank 91 of the water flow field 9 and close to the net 81, so that the net 81 can filter the floating objects in the water flow field 9, and after the floating objects are allowed to float to the entrance of the conveyor belt 82 through the partially obliquely arranged net 81, the conveyor belt 82 is beneficial to transport these floating objects to the collecting box 83, so as to avoid the floating objects in the water flow field 9 interfering with and affecting the hydropower generation of the present invention.

The preferred embodiment of the river irrigation channel hydroelectric power generation system C of the present invention, as shown in Figures 9, 10 and 14, is to set a plurality of the river irrigation channel hydroelectric power generation devices B1, and connect the plurality of river irrigation channel hydroelectric power generation devices B1 in series or/and in parallel with a plurality of connectors 43 and wires, and then insert a plurality of sleeves 42 corresponding to the plurality of piles 711 into the plurality of piles 711, so as to facilitate the embedding and positioning of the plurality of river irrigation channel hydroelectric power generation devices B1 with floating function.

In other words, the river irrigation channel hydropower generation system C of the present invention can connect the multiple hydropower generation devices B1; B2 in series or/and in parallel through multiple connectors 43 and wires according to the width, length and depth of the visible water flow field 9, and whether it is necessary to use a hydropower generation device B1 with a floating function or a hydropower generation device B2 without a floating function, so as to achieve the economic benefits of the desired power generation needs.

Therefore, the present invention unit and the devices and systems constituted by it should be installed in the water flow field 9 of the river, irrigation channel, etc., so that the micro-flowing water can enter the pre-cast outer tube 1 at a high speed, and after the micro-flowing water flows through the inner spiral blade set 11 and the outer spiral blade set 22 to form one or more spiral flow paths 3, it can drive the spiral transmission shaft 2 located in the outer tube 1. That is, the spiral transmission shaft 2 innovatively adopts a three-piece outer spiral blade set 22 to assist the rotation of the spiral transmission shaft 2, and the connecting piece 54, the stepless speed increaser 52 and the power input end 53 are installed above the tail end (i.e., the power output end 23) of the spiral transmission shaft 2 to generate torque to rotate the generator 51, so that the weak water flow rate can reach the speed requirement of the hydraulic generator.

In particular, if the water force or kinetic energy in the river or irrigation channel used in the invention of the hydraulic generator is too low, it is best to add and start the operation of the generator 51 itself by a power source before its initial startup to assist in driving the spiral drive shaft 2 of the machine located in the water to rotate with the huge torque required at the initial startup. At the same time, the present invention uses the reverse input of the motor reducer to increase the speed of the stepless speed increaser 52. When the speed reaches the speed of the entire generator set 5 required by the generator 51 (including the spiral drive shaft 2 in the water and its shaft 21, the gear of the power output end 23 and the stepless speed increaser 52 and other components), that is, after a specific speed with a rotational inertia is generated, the initial power assistance can be disconnected from the entire generator set 5, allowing the generator set 5 to start using the present invention to generate hydroelectric power.

In summary, the present invention relates to a river irrigation channel hydraulic power generation device, system and screw unit thereof, which is applied to river or canal irrigation channel, tail water discharged by hydropower plant, cooling water channel discharged by nuclear power plant, etc., where the fluid flow rate is sufficient, and the device, system and screw unit thereof and the mechanical principle of reverse input of motor reducer become speed increaser to stand and operate the hydraulic generator, so that the present invention breaks through the high tendency of traditional hydraulic power generation relying on the high potential energy of fluid. The invention relates to a renewable energy device that can generate green electricity and its generator in a horizontal micro-potential fluid basin with a relatively low potential energy difference, creating more horizontal fluid water areas, especially a hydroelectric power generation device installed in rivers and irrigation channels. The components, devices and systems have never been seen in books or public use. It truly meets the requirements for invention patent application. We sincerely request the Ministry of Justice to examine and approve the patent as soon as possible. We are very grateful.

It should be noted that the above is the technical principle used in the specific implementation examples of this case. If the changes made according to the concept of this case do not exceed the spirit covered by this specification and drawings, they should be stated within the scope of the patent application of this case.

A: Screw unit B1, B2: River irrigation channel hydropower generation device C: River irrigation channel hydropower generation system 1: Outer tube 10: Inner wall 11: Inner spiral blade group 12: Inlet 13: Outlet 14: Hub 15: Manifold channel 2: Spiral drive shaft 21: Rotating shaft 22: Outer spiral blade group 23: Power output end 3: Spiral flow path diameter 4: Frame 41: Indentation 42: Ring 43: Connector 44: Baffle 5: Generator unit 51: Generator 52: Stepless speed increaser 53: Power input end 54: Linkage 6: Floating unit 7: Fixed frame 71: Side frame 711: Pile 72: Hanging frame 8: Driftwood collection device 81: Net catch 82: Conveyor belt 83: Collection box 9: Flowing water area 91: Shore

[Figure 1] is a schematic diagram of an embodiment of the screw unit of the present invention. [Figure 2] is a schematic diagram of another embodiment of the screw unit of the present invention. [Figure 3] is a longitudinal section view of Figure 2 of the present invention. [Figure 4] is an end view of Figure 2 of the present invention. [Figure 5] is a schematic diagram of an embodiment of the river irrigation channel hydropower generation device and its system of the present invention. [Figure 6] is a top view of Figure 5 of the present invention and its embodiment diagram. [Figure 7] is a longitudinal section view of Figure 5 of the present invention. [Figure 8] is an end view of Figure 5 of the present invention and its embodiment schematic diagram. [Figure 9] is a schematic diagram of another embodiment of the river irrigation channel hydropower generation system of the present invention. [Figure 10] is a schematic diagram of another embodiment of the river irrigation channel hydropower generation system of the present invention. [Figure 11] is a schematic diagram of another embodiment of the river irrigation channel hydropower generation system of the present invention. [Figure 12] is a top view of Figure 11 of the present invention and a schematic diagram of its embodiment. [Figure 13] is a schematic diagram of the series connection of the river irrigation channel hydropower generation system of the present invention. [Figure 14] is a schematic diagram of the embodiment of the hydropower generation system of the present invention in combination with a floating object collection device.

A:Screw unit

B1: River irrigation channel hydroelectric power generation device

C: River irrigation channel hydropower generation system

1: External pipe

12: Entrance

13: Exit

14: Armrest

2: Helical drive shaft

21: Rotating axis

4: Framework

41: Retracted part

42: Ring

5: Generator set

51: Generator

52: Stepless speed increaser

6: Floating unit

7: Fixed bracket

71: Side frame

711: Pile

Claims (10)

A spiral unit includes: an outer tube, an inner spiral blade set is provided on the inner wall thereof, and two hubs are provided at an inlet and an outlet of the outer tube; and a spiral transmission shaft, an outer spiral blade set is provided around a rotating shaft, and two ends of the rotating shaft are connected to the two hubs, and the outer spiral blade set corresponds to the inner spiral blade set; the inner spiral blade set and the outer spiral blade set are both provided with at least one spiral blade to form at least one spiral flow path diameter, thereby providing low potential energy micro-hydraulic flow drive. The spiral unit as described in claim 1, wherein the inner diameter of the inner spiral blade set is larger than the outer diameter of the outer spiral blade set; and the inner spiral blade set and the outer spiral blade set provided on the spiral drive shaft are both configured to be composed of three spirals to form three spiral flow path diameters. A screw unit as described in claim 1 or 2, wherein a manifold channel is provided on at least one side of the outer tube; a frame is additionally provided on the outside of the outer tube, and the two hubs extend downward from the two ends of the frame toward the central axis of the frame; two retracted portions are additionally provided between the inlet and the outlet of the outer tube and the two ends of the frame, and/or a baffle is respectively provided on the frame on both sides of the inlet of the outer tube. A river irrigation channel hydroelectric power generation device uses the screw unit described in claim 3, which includes: The screw unit is configured such that the tail end of the screw unit is a power output end; and A generator unit is provided at the top end of the frame provided with the screw unit, and a linkage is provided between a power input end provided with the generator unit and a power output end provided with the screw unit. The river irrigation channel hydroelectric power generation device as described in claim 4 further includes a floating unit, which is connected to the top of the frame on which the screw unit is set and partially adjacent to the surrounding of the generator unit; and a plurality of rings are respectively provided on both sides of the frame on which the screw unit is set. A river irrigation channel hydroelectric power generation device as described in claim 5, wherein the generator set further includes a generator connected to a stepless speed increaser, and the stepless speed increaser is provided with the power input end. A river irrigation channel hydroelectric power generation system uses the river irrigation channel hydroelectric power generation device described in any one of claims 4 to 6, which includes: A fixed frame, which further includes two side frames or a suspension frame, and the two side frames or the suspension frame are respectively installed on both sides of a water flow field; and At least one river irrigation channel hydroelectric power generation device is connected between the two side frames or at the bottom of the suspension frame. As described in claim 7, the river irrigation channel hydroelectric power generation system, wherein the two side frames are respectively provided with a plurality of piles, and the plurality of collars provided on the frame of the at least one screw unit are all inserted into the plurality of piles. As described in claim 8, the river irrigation channel hydraulic power generation system is provided with a plurality of river irrigation channel hydraulic power generation devices, and the plurality of river irrigation channel hydraulic power generation devices are connected in series or/and in parallel by a plurality of connectors and wires, and then a plurality of sleeves corresponding to the plurality of piles are inserted into the corresponding plurality of piles. A river irrigation channel hydroelectric power generation system as described in claim 7, 8 or 9, wherein a floating object collection device is installed at the upstream front end of the river irrigation channel hydroelectric power generation system, and the floating object collection device further includes a net, a conveyor belt and a collecting box, wherein the net is arranged across the two banks of the water flow field and is partially inclined, and the conveyor belt combined with the collecting box is arranged on at least one bank of the water flow field and is close to the net.