Regional power generation irrigation allocation type retaining dam

Abstract

The invention discloses a regional power generation irrigation allocation type retaining dam, and belongs to the technical field of hydroelectric power generation. Comprising a dam body, an axial-flow type constant-rotating-speed power output device, a submersible pump and a power generation and distribution assembly. The dam body is provided with a water through hole and an equipment mounting chamber, the axial-flow type constant-rotating-speed power output device comprises an axial-flow driving assembly and a constant-speed adjusting assembly, the axial-flow driving assembly is arranged in the water through hole, the constant-speed adjusting assembly is arranged in the equipment mounting chamber, and the axial-flow driving assembly is connected with the constant-speed adjusting assembly through a shaft. The power generation and distribution assembly comprises a generator, a storage battery and an electric control cabinet which are arranged in the box body and electrically connected with one another, and the constant-speed adjusting assembly is connected with a generator shaft in the power generation and distribution assembly. According to the invention, integrated collaborative operation of water retaining, power generation and irrigation is realized, meanwhile, the stability, self-cleaning capability and maintenance convenience of the equipment are improved through structural optimization, and the equipment can flexibly adapt to water resource and energy demands in different seasons.

Description

Technical Field

[0001] This invention belongs to the field of hydropower technology, specifically relating to a regional power generation and irrigation control dam. Background Technology

[0002] As a core water conservancy facility, dams primarily serve functions such as flood control, water storage, regulation of water resource allocation, and hydropower generation. Traditional dam designs often revolve around a single core need. However, with the increasing demand for comprehensive needs such as agricultural irrigation and regional power supply, their limitations in functional synergy, power generation stability, operational reliability, and ease of maintenance have become increasingly apparent, making it difficult to adapt to the demands of modern integrated regional water resource and energy allocation.

[0003] Traditional hydroelectric dams typically design their power generation and irrigation systems independently, lacking a coordinated control mechanism. On one hand, the power generation system relies on a stable water flow created by the water level difference between the upstream and downstream sides of the dam to drive the turbine generator units. Its water flow regulation prioritizes power generation efficiency, often failing to meet the seasonal and intermittent water demands of farmland irrigation. For example, during peak irrigation periods when increased discharge is needed, the excessively fast flow velocity may exceed the generator units' design range, leading to unstable power generation. Conversely, during dry seasons when reduced discharge is necessary to ensure power generation, it can negatively impact downstream farmland irrigation water supply.

[0004] On the other hand, irrigation systems usually require additional externally powered pumping stations, which not only increases the regional power load and energy consumption, but also requires separate power supply lines and control facilities, resulting in high overall investment costs, low resource utilization, and the inability to achieve integrated and coordinated operation of "water-energy-irrigation".

[0005] Traditional hydroelectric power generation systems rely directly on the velocity and flow rate of natural water. However, water flow conditions are greatly affected by natural factors such as seasons, rainfall, and river basin inflow, leading to frequent fluctuations in the input speed of the generator units. Currently, most traditional dams lack efficient constant-speed regulation devices, relying solely on simple gate opening adjustments to regulate water flow, which cannot precisely control the turbine unit's speed. When the water flow velocity is too low, the generator unit's output power is insufficient to meet the rated voltage requirements of electrical equipment; when the water flow velocity is too high, the speed exceeds the design threshold, not only reducing the stability of the power generation frequency but also potentially exacerbating wear on bearings, gears, and other components due to excessive mechanical load, shortening equipment lifespan. While some projects have added electrical speed stabilization devices, these devices consume electrical energy and have slow response times, failing to adapt to real-time dynamic changes in water flow, further reducing the overall energy efficiency of the power generation system. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a regional power generation and irrigation dispatching dam. The present invention realizes the integrated and coordinated operation of water interception, power generation and irrigation. At the same time, through structural optimization, it improves the stability, self-cleaning ability and maintenance convenience of the equipment, and can flexibly adapt to the water resources and energy needs of different seasons.

[0007] The technical solution adopted by this invention to solve the problems existing in the prior art is: A regional power generation and irrigation control dam includes a dam body, an axial flow constant speed power output device, a submersible pump, and a power generation and distribution assembly.

[0008] The dam body has several through-holes, and each through-hole has a sealed, openable valve plate. The dam body also has an equipment installation chamber, and a pump installation pool is located at the bottom of the water-facing side of the dam body.

[0009] The axial flow constant speed power output device includes an axial flow drive assembly and a constant speed regulating assembly. The axial flow drive assembly is located inside the water passage holes on both sides of the equipment installation chamber or inside one of the water passage holes. The constant speed regulating assembly is located inside the equipment installation chamber. The axial flow drive assembly and the constant speed regulating assembly are connected by a shaft.

[0010] The submersible pump is installed inside the pump installation pool.

[0011] The power generation and distribution assembly includes a generator, a battery, and an electrical control cabinet that are electrically connected to each other inside the enclosure. The constant speed regulating assembly is connected to the generator shaft inside the power generation and distribution assembly.

[0012] Preferably, the axial flow drive assembly includes an axial flow cylinder placed inside the water passage, an impeller rotatably mounted in the middle of the axial flow cylinder, the impeller being connected to a gearbox via a first rotating shaft, and the gearbox being connected to a constant speed regulating assembly via a first output shaft after rotating and changing direction.

[0013] The constant speed regulating assembly includes a speed regulating housing. Inside the speed regulating housing, there is a drive wheel and a frustum wheel that rotate. A synchronous belt is fitted between the drive wheel and the frustum wheel. The drive wheel is coaxially fixed with an input shaft that is connected to a first output shaft. The frustum wheel has a spline hole arranged axially at its center. A second spline shaft is inserted into the spline hole. The second spline shaft is coaxially fixed with a second output shaft. The second output shaft is connected to the generator power input shaft inside the power generation and distribution assembly.

[0014] The speed control box is equipped with an adjustment device connected to the frustum wheel, which controls the frustum wheel to move axially along the second spline shaft.

[0015] The timing belt is internally connected to a tensioning pulley, and there are limiting devices on both sides of the timing belt to prevent the timing belt from moving axially along the second spline shaft with the frustum wheel.

[0016] Preferably, the frustum wheel has a retaining ring protruding from its large end, small end, or both large and small ends.

[0017] The adjustment device includes a servo motor, a first screw, and a connecting frame.

[0018] The servo motor is fixed inside the speed control box by a bracket, and the first screw is connected to the output end of the servo motor.

[0019] The connecting frame is fixed with several nut sleeves and annular grooves.

[0020] The nut sleeve is fitted onto the first screw, and the two are connected by threads.

[0021] The annular groove is fitted onto the retaining ring, and the two are rotatably connected.

[0022] Preferably, two connecting frames are symmetrically arranged at both ends of the frustum wheel around the axis of the frustum wheel. The annular groove on the retaining ring is fixedly connected to the two connecting frames. The nut sleeves on the two connecting frames are threaded with a first screw, and the first screw is rotatably connected to the speed control box.

[0023] The output end of the servo motor is coaxially connected to a second rotating shaft, and two second worm gears are fixedly connected to the second rotating shaft. The second worm gears are meshed with a second turbine, and the second turbine is coaxially and fixedly connected to the first screw.

[0024] Preferably, 2 to 5 limiting devices are arranged on the outside of the frustum wheel.

[0025] The limiting device includes a U-shaped frame with its opening facing the synchronous belt. Two rotating rollers are rotatably connected to the opening of the U-shaped frame, and the rotating tube is inserted into the slot.

[0026] A slide rod is fixed at one end of the U-shaped frame away from the timing belt, and the axis of the slide rod is arranged radially along the frustum wheel.

[0027] The speed control box is equipped with a sleeve inside, and the end of the slide rod away from the U-shaped frame is inserted into the sleeve.

[0028] Preferably, the inner side of the synchronous belt is provided with two tensioning pulleys arranged at intervals. The tensioning pulleys are rotatably connected to an adapter frame. A guide rod is provided on each side of the tensioning pulley. The adapter frame has a through hole at its end. The guide rod passes through the through hole. A spring base is fixed in the middle of the guide rod. A spring is provided between the spring base and the adapter frame. The spring is sleeved on the guide rod. A limiting ring is provided at the end of the guide rod. The two guide rods are fixedly connected by a fixing plate. The fixing plate is fixedly connected to the speed control box.

[0029] Preferably, the axial flow tube water inlet end cover is equipped with a filter cover, which is conical in shape and has filter holes on its surface.

[0030] Preferably, the water passage hole for mounting the axial flow drive assembly is located on the inner wall of the front end of the filter cover and has a debris collection groove.

[0031] The dam body has an inlet hole on the water-facing side and a drain hole on the drainage side. The inlet hole and the drain hole are respectively located on the upper and lower sides of the debris collection trough. The inlet hole is connected to the debris collection trough through the upper connecting cavity, and the drain hole is connected to the debris collection trough through the lower connecting cavity.

[0032] The water inlet and drain holes are equipped with a debris discharge linkage switch assembly.

[0033] Preferably, the impurity discharge linkage switch assembly includes an upper blocking plate, a lower blocking plate, a connecting plate, an internally threaded tube, a stud, and a first drive motor.

[0034] The water inlet is a through hole with an upper plug plate of equal diameter that slides inside. The lower plug plate is slidably disposed inside the drain hole, and the lower plug plate is of equal diameter to the drain hole.

[0035] The upper blocking plate is fixedly connected to the connecting plate via an upper connecting rod, the lower blocking plate is fixedly connected to the connecting plate via a lower connecting rod, and the middle part of the connecting plate is fixedly connected to the internally threaded pipe.

[0036] The stud is inserted into the internal threaded tube, and the two are connected by threads. The stud is fixedly connected to the output shaft of the first drive motor.

[0037] The dam body drainage surface is provided with installation holes, and an installation sleeve is inserted inside the installation holes. The first drive motor, studs, and part of the internally threaded pipe are set inside the installation sleeve, and the internally threaded pipe is slidably connected to the installation sleeve.

[0038] Compared with the prior art, the present invention has the following beneficial effects: (1) The axial flow constant speed power output device converts the kinetic energy of water into electrical energy, stores it in the battery, and powers the submersible pump for farmland irrigation and facilities such as riverside street lights, so as to achieve energy self-sufficiency, reduce external power dependence, and meet the integrated synergistic function of multiple needs of power generation and irrigation.

[0039] (2) The valve plate moves up and down by controlling the second drive motor to adjust the opening of the water passage, and the water interception volume can be flexibly adjusted according to the season and rainfall. At the same time, it can adapt to the irrigation water demand and the water flow conditions required for power generation, so as to realize the flexible allocation of water resources.

[0040] (3) The constant speed regulating assembly monitors the speed of the second output shaft in real time through the speed sensor, controls the servo motor to drive the axial movement of the truncated wheel, adjusts the contact position between the synchronous belt and the truncated wheel, changes the speed ratio, ensures that the generator input speed is stable or fluctuates within the allowable range, is not disturbed by changes in water flow velocity, and ensures the quality of power generation.

[0041] (4) The water inlet of the axial flow cylinder is divided into an inlet area and an installation area. Combined with the steering design of the axial flow impeller and gearbox, the efficiency of water flow energy conversion to mechanical energy is improved. The contact slope and tensioning wheel structure on the inner side of the synchronous belt ensure friction and stability during power transmission.

[0042] (5) The conical filter cover at the water inlet of the axial flow tube can trap debris such as tree branches. Its conical structure can wash away the debris under the action of water flow, achieving self-cleaning of the outer surface. The debris collection tank at the front end of the filter cover can collect some debris and discharge it periodically through the debris discharge linkage switch to avoid clogging of the axial flow tube and ensure impeller life and operating effect.

[0043] (6) A filter screen is installed at the opening of the pump installation pool to further prevent debris from entering the submersible pump. The valve plate sealing design of the water passage can be closed when the equipment is under maintenance or when water is not needed, ensuring the safety of the equipment inside the dam.

[0044] (7) Two sets of axial flow drive assemblies are installed in the water passage holes on both sides of the equipment installation chamber. The assemblies can be switched to work in rotation, which can extend the service life of a single set of equipment. The equipment installation chamber is equipped with a climbing ladder and a removable top cover, which can facilitate personnel to enter and maintain the internal equipment. The core components such as the power generation and distribution assembly and the constant speed regulation assembly are all modularly installed and have independent structures, which can be easily maintained or replaced individually, reducing the overall operation and maintenance difficulty. Attached Figure Description

[0045] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0046] Figure 1 This is a first structural diagram of a regional power generation and irrigation regulating dam according to this application. Figure 2 This is a second structural diagram of a regional power generation and irrigation regulating dam according to this application. Figure 3 This is a structural diagram of a regional power generation and irrigation control dam after removing the power generation and distribution assembly, as described in this application. Figure 4 for Figure 3 First sectional view, Figure 5 for Figure 3 The second sectional view, Figure 6 for Figure 3 The third sectional view, Figure 7This is a structural diagram of an axial-flow constant-speed power output device for a regional power generation and irrigation regulating dam, as described in this application. Figure 8 This is a first sectional view of the axial flow drive assembly in an axial flow constant speed power output device. Figure 9 This is a second sectional view of the axial flow drive assembly in an axial flow constant speed power output device. Figure 10 This is a first sectional view of the constant speed regulating assembly in an axial-flow constant speed power output device. Figure 11 This is a second sectional view of the constant speed regulating assembly in an axial-flow constant speed power output device. Figure 12 This is a structural diagram of the regulating device in the constant speed regulating assembly of this application. Figure 13 for Figure 12 sectional view, Figure 14 for Figure 13 Enlarged view of a portion of point A in the middle. Figure 15 This is a structural diagram of the linkage structure in the constant speed regulating assembly of this application. Figure 16 for Figure 15 A partial sectional view, Figure 17 for Figure 16 Enlarged view of a section at point B in the middle. Figure 18 This is a structural diagram of the tensioner assembly in the constant speed regulating assembly of this application. Figure 19 This is a structural diagram of the conversion assembly in an axial-flow constant speed power output device. Figure 20 This is a structural diagram of the impurity discharge linkage switch assembly in a regional power generation and irrigation control dam according to this application.

[0047] In the diagram: 1-Axial flow cylinder, 101-Fixing flange, 102-Support frame, 103-Positioning bolt, 104-Support sleeve, 105-Support plate, 2-First rotating shaft, 3-Impeller, 4-First worm gear, 5-First turbine, 6-First output shaft, 601-First splined shaft, 7-Gearbox, 8-Filter cover, 9-Speed ​​control box, 10-Input shaft, 1001-First bevel gear, 11-Driving wheel, 12-Folded wheel, 1201-Snap ring, 1202-Splined hole, 13 14-Tensioner pulley, 14-Synchronous belt, 1401-Abutting inclined surface, 1402-Slot, 15-Second output shaft, 16-Second splined shaft, 17-Servo motor, 18-Second rotating shaft, 19-Second worm gear, 20-Second turbine, 21-First screw, 22-Nut sleeve, 23-Connecting frame, 24-Annular groove, 25-Adapter frame, 26-Guide rod, 2601-Limiting ring, 27-Fixing plate, 28-Spring, 29-Sleeve, 30-Slide rod, 31-U-shaped frame, 32-Roller, 33-Spline tube, 3301-Snap ring assembly, 34-Second bevel gear, 35-Flange, 36-Connecting rod, 37-Telescopic device, 38-Upper blocking plate, 39-Upper connecting rod, 40-Lower blocking plate, 41-Lower connecting rod, 42-Connecting plate, 43-Internal threaded tube, 44-Stud, 45-First drive motor, 46-Mounting sleeve, 47-Dam body, 4701-Water passage hole, 4702-Equipment Installation chamber, 4703-Pump installation pool, 4704-Miscellaneous collection trough, 4705-Upper connecting cavity, 4706-Water inlet hole, 4707-Lower connecting cavity, 4708-Drain hole, 4709-Valve plate movable cavity, 48-Valve plate, 49-Second screw, 50-Second drive motor, 51-Submersible pump, 52-Upper cover plate, 53-Gearbox, 54-Power output shaft, 55-Power generation and distribution assembly. Detailed Implementation

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which embodiments of this application belong. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application.

[0049] Furthermore, the specification and claims of this invention use terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," to describe various exemplary structural parts and elements of the invention. However, these terms are used herein merely for illustrative purposes and are determined based on the exemplary orientations shown in the accompanying drawings. Therefore, these terms indicating direction are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0050] The following description, in conjunction with the accompanying drawings, provides a more detailed explanation of a regional power generation and irrigation control dam according to the present invention.

[0051] Depend on Figures 1 to 20 As shown, a regional power generation and irrigation distribution type dam includes a dam body 47, an axial flow constant speed power output device, a submersible pump 51, and a power generation and distribution assembly 55.

[0052] The dam body 47 is provided with several through water passage holes 4701. The water passage holes 4701 are provided with a sealed, openable valve plate 48. The dam body 47 is provided with a valve plate movable cavity 4709 at the position where the valve plate 48 is arranged in the water passage hole 4701. The valve plate 48 moves up and down along the inside of the valve plate movable cavity 4709. When it moves up, it opens; when it falls down, it seals the water passage hole 4701.

[0053] In this embodiment, the driving mechanism of the valve plate 48 includes a second screw 49 and a second drive motor 50. The second screw 49 is arranged vertically, and its bottom is inserted into a recessed rotating hole at the bottom of the valve plate movable cavity 4709. The valve plate 48 is provided with a threaded hole, through which the second screw 49 passes, and the two are threadedly connected. The top of the second screw 49 extends to the outside of the dam body 47 and is fixedly connected to the output shaft of the second drive motor 50, which is fixed to the top surface of the dam body 47.

[0054] The dam body 47 is equipped with an equipment installation chamber 4701 inside. The outlet of the equipment installation chamber 4701 is located on the top surface of the dam body 47 and is covered with a detachable top cover plate 52. A climbing ladder is fixed on the vertical side wall of the equipment installation chamber 4701.

[0055] A water pump installation pool 4703 is provided at the bottom of the water-facing side of the dam body 47. The upper end of the water pump installation pool 4703 is open and covered with a filter screen. The submersible pump 51 is installed inside the water pump installation pool 4703.

[0056] The axial flow constant speed power output device includes an axial flow drive assembly and a constant speed adjustment assembly. The axial flow drive assembly is located inside the water passage holes 4701 on both sides of the equipment installation chamber 4701 or inside one of the water passage holes 4701. The constant speed adjustment assembly is located inside the equipment installation chamber 4701. The axial flow drive assembly and the constant speed adjustment assembly are connected by a shaft.

[0057] The axial flow drive assembly includes an axial flow cylinder 1 placed inside a water passage 4701. The water passage 4701, in which the axial flow cylinder 1 is installed, is cylindrical, and the axial flow cylinder 1 is arranged coaxially with it. In order to improve the energy conversion efficiency of the water flow inside the water passage 4701, in this embodiment, the water passage 4701 in which the axial flow cylinder 1 is installed has two coaxially arranged areas, namely a water inlet area and an installation area along the water flow direction. The inner diameter of the water inlet area is smaller than the inner diameter of the installation area. The valve plate 48 is disposed inside the water inlet area, and the axial flow cylinder 1 is disposed inside the installation area.

[0058] The two ends of the axial flow tube 1 are respectively provided with fixed flanges 101, and the fixed flanges 101 are rotatably provided with positioning bolts 103. The fixed flange 101 located on the water-facing side abuts against the boss between the installation area and the water inlet area in the water passage hole 4701. The protrusion is provided with a threaded hole, and the positioning bolt 103 is threadedly connected to the threaded hole to fix the axial flow tube 1 inside the installation area.

[0059] In order to effectively support the axial flow cylinder 1, a support sleeve 104 is fitted on the outside of the axial flow cylinder 1. Several support plates 105 are fixed on the outside of the support sleeve 104 in a ring array around its axis. The end face of the support plate 105 abuts against the inner wall of the water passage hole 4701.

[0060] An impeller 3 is rotatably mounted in the middle of the axial flow cylinder 1. The impeller 3 is connected to the gearbox via the first rotating shaft 2. After the gearbox achieves rotational direction change, it is connected to the constant speed regulating assembly via the first output shaft 6.

[0061] In this embodiment, the first rotating shaft 2 is rotatably connected to the axial flow cylinder 1 via several support frames 102, and the support frames 102 are fixedly connected to the inner wall of the axial flow cylinder 1. Several sets of impellers 3 are sleeved on the first rotating shaft 2 and connected by locating pins or locating keys.

[0062] The gearbox includes a gearbox body 7, inside which a first worm gear 4 and a first turbine gear 5 are rotatably connected and meshed with each other. The first worm gear 4 is coaxially and fixedly connected to a first rotating shaft 2, and the first turbine gear 5 is coaxially and fixedly connected to a first output shaft 6.

[0063] The first rotating shaft 2 and the first output shaft 6 are arranged perpendicular to each other.

[0064] Water flows through the axial flow tube 1, driving the impeller 3 to rotate and generate power. The rotating impeller 3 transmits power through the first shaft 2 and the gearbox to the first output shaft 6.

[0065] The constant speed regulating assembly includes a speed regulating housing 9. Inside the speed regulating housing 9, there is a drive wheel 11 and a frustum wheel 12 that rotate. A synchronous belt 14 is fitted between the drive wheel 11 and the frustum wheel 12. The drive wheel 11 is coaxially fixed with an input shaft 10 that is connected to the first output shaft 6.

[0066] The center of the frustum wheel 12 is provided with a spline hole 1202 arranged coaxially along the axis. A second spline shaft 16 is inserted into the spline hole 1202, and a second output shaft 15 is coaxially and fixedly connected to the second spline shaft 16.

[0067] The speed control box 9 is equipped with an adjustment device connected to the frustum wheel 12. The adjustment device controls the frustum wheel 12 to move axially along the second spline shaft 16.

[0068] The timing belt 14 is internally connected to a tensioning pulley 13, and the timing belt 14 is provided with limiting devices on both sides. The limiting devices prevent the timing belt 14 from moving axially along the second spline shaft 16 with the frustum wheel 12.

[0069] The first output shaft 6 transmits power to the input shaft 10, causing the input shaft 10 to rotate, which in turn drives the frustum wheel 12 to rotate via the drive wheel 11 and the timing belt 14. In this embodiment, for ease of arrangement, the axis of the first output shaft 6 is perpendicular to the axis of the input shaft 10. The input shaft 10 has a first bevel gear 1001 at its end, and the first output shaft 6 has a second bevel gear 34 connected to its end. The first bevel gear 1001 and the second bevel gear 34 are meshed together.

[0070] Since the maintenance of the axial flow drive assembly is inconvenient, in order to reduce costs and also serve as a rotation function to extend the service life of the axial flow drive assembly, in this embodiment, the water passage holes 4701 on both sides of the equipment installation chamber 4701 are equipped with axial flow drive assemblies. The two sets of axial flow drive assemblies are respectively connected to a constant speed adjustment assembly located inside the equipment installation chamber 4701. Therefore, a conversion assembly is provided between the axial flow drive assembly and the constant speed adjustment assembly.

[0071] The end of the first output shaft 6 is provided with a first spline shaft 601. The conversion assembly includes a spline tube 33 that is sleeved and slides with the first spline shaft 601 and a telescopic device 37. The telescopic device 37 is an electric telescopic rod or an electromagnet.

[0072] The spline tube 33 is coaxially and fixedly connected to the second bevel gear 34 at its end. The spline tube 33 is provided with a retaining ring assembly 3301 consisting of two spaced retaining rings. A retaining sleeve 35 fitted onto the spline tube 33 is engaged inside the retaining ring assembly 3301. The retaining sleeve 35 on the spline tube 33, which is connected to the first output shaft 6 of the two axial flow drive assemblies, is fixedly connected by a connecting rod 36. The telescopic part of the telescopic device 37 controls the connecting rod 36 to reciprocate along the axial direction of the first output shaft 6.

[0073] With the above structure, two oppositely arranged second bevel gears 34 are provided below the first bevel gear 1001. The expansion device 37 controls the sleeve 35 to drive the spline tube 33 to move, so that one of the two second bevel gears 34 meshes with the first bevel gear 1001, and the other is arranged at an interval from the first bevel gear 1001.

[0074] Since the outer diameters of the different sections of the frustum wheel 12 are different, the speed ratio between the second output shaft 15 and the first output shaft 6 can be changed by adjusting the contact position between the frustum wheel 12 and the timing belt 14. Because the water flow velocity varies due to seasonal weather conditions, the speed ratio between the second output shaft 15 and the first output shaft 6 can be changed to keep the speed of the second output shaft 15 constant or allow it to vary within an acceptable range.

[0075] The frustum wheel 12 has a retaining ring 1201 protruding from its large end, small end, or both ends. The adjustment device includes a servo motor 17, a first screw 21, and a connecting frame 23. The servo motor 17 is fixed inside the speed control housing 9 by a bracket, and the first screw 21 is connected to the output end of the servo motor 17.

[0076] The connecting frame 23 is fixed with a number of nut sleeves 22 and annular grooves 24. The nut sleeves 22 are fitted onto the first screw 21 and the two are threaded together. The annular grooves 24 are fitted onto the retaining ring 1201 and the two are rotatably connected.

[0077] In order to ensure that the force is evenly distributed when pushing the truncated wheel 12 and to better complete the movement, in this embodiment, two connecting frames 23 are symmetrically arranged at both ends of the truncated wheel 12 around the axis of the truncated wheel 12. The annular groove 24 sleeved on the retaining ring 1201 is fixedly connected to the two connecting frames 23. The nut sleeves 22 on the two connecting frames 23 are respectively threaded with a first screw 21. The first screw 21 is rotatably connected to the speed regulating box 9.

[0078] To ensure that the two first screws 21 can rotate synchronously, the output end of the servo motor 17 is coaxially connected to a second rotating shaft 18. Two second worm gears 19 are fixedly connected to the second rotating shaft 18. The second worm gears 19 are meshed with a second turbine 20. The second turbine 20 is coaxially fixedly connected to the first screw 21.

[0079] Inside the speed control housing 9, there is a power supply assembly, a control module, and a speed sensor. The speed sensor detects the speed of the second output shaft 15 and transmits the detection signal to the control module. The control module controls the servo motor 17 to work according to the speed and adjusts the position of the truncated wheel 12.

[0080] In order to maintain the friction between the timing belt 14 and the frustum wheel 12 after the timing belt 14 is displaced, the inner end face of the timing belt 14 is an abutting inclined surface 1401 with the same slope as the circumferential surface of the frustum wheel 12, and the two end faces of the timing belt 14 are provided with grooves 1402 that are recessed inward.

[0081] Two to five limiting devices are arranged on the outside of the frustum wheel 12, and the limiting devices are connected to the timing belt 14 through the slot 1402.

[0082] The limiting device includes a U-shaped frame 31 with its opening facing the synchronous belt 14. Two rotating rollers 32 are rotatably connected to the opening of the U-shaped frame 31. The rotating tube 32 is inserted into the slot 1402.

[0083] A slide rod 30 is fixed at one end of the U-shaped frame 31 away from the synchronous belt 14, and the axis of the slide rod 30 is arranged radially along the frustum wheel 12.

[0084] The speed control box 9 is fixedly provided with a sleeve 29, and the end of the slide rod 30 facing away from the U-shaped frame 31 is inserted into the sleeve 29.

[0085] The roller 32 abuts against the synchronous belt 14, which can reduce the frictional force generated by the limiting device when the synchronous belt 14 rotates.

[0086] The sleeve 29 allows the slide bar 30 to move only along its axial direction and not along the axial direction of the frustum wheel 12. The clamping of the U-shaped frame 31 and the rotating roller 32 ensures that the inner diameter of the area where the synchronous belt 14 abuts the frustum wheel 12 can only expand or shrink during the movement of the frustum wheel 12.

[0087] The inner side of the synchronous belt 14 is provided with a tensioning wheel assembly consisting of two spaced tensioning wheels 13. The tensioning wheels 13 are rotatably connected to an adapter frame 25. A guide rod 26 is provided on each side of the tensioning wheel 13. The adapter frame 25 has a through hole at its end, through which the guide rod 26 passes. A spring base is fixed in the middle of the guide rod 26. A spring 28 is provided between the spring base and the adapter frame 25. The spring 28 is sleeved on the guide rod 26. A limiting ring 2601 is provided at the end of the guide rod 26. The two guide rods 26 are fixedly connected by a fixing plate 27. The fixing plate 27 is fixedly connected to the speed control box 9.

[0088] To prevent debris, such as tree branches, from entering the axial flow cylinder 1 and affecting the lifespan and performance of the impeller 3, a filter cover 8 is provided at the water inlet end of the axial flow cylinder 1 in this embodiment. The filter cover 8 is conical with filter holes on its surface. The filter cover 8 is fixedly connected to the flange at the front end of the axial flow cylinder 1 by bolts. Debris is blocked by the filter cover 8. Because the filter cover 8 is conical, the debris trapped by the filter cover 8 is guided by the filter cover 8 and washed away by the water flow, achieving self-cleaning of the outer surface of the filter cover 8 and ensuring the filtration effect.

[0089] The water passage 4702, which is equipped with the axial flow drive assembly, is located on the inner wall of the front end of the filter cover 8 and has a dirt collection groove 4704.

[0090] The dam body 47 has an inlet hole 4706 on its water-facing surface and a drain hole 4708 on its drainage surface. The inlet hole 4706 and the drain hole 4708 are respectively located on the upper and lower sides of the debris collection trough 4704. The inlet hole 4706 is connected to the debris collection trough 4704 through the upper connecting cavity 4705, and the drain hole 4708 is connected to the debris collection trough 4704 through the lower connecting cavity 4707.

[0091] The water inlet 4706 and the drain 4708 are equipped with a debris discharge linkage switch assembly.

[0092] The aforementioned impurity discharge linkage switch assembly includes an upper blocking plate 38, a lower blocking plate 40, a connecting plate 42, an internally threaded tube 43, a stud 44, and a first drive motor 45.

[0093] The water inlet hole 4706 is a through hole, and an upper blocking plate 38 of equal diameter is slidably provided inside it. The lower blocking plate 40 is slidably disposed inside the drain hole 4708, and the lower blocking plate 40 and the drain hole 4708 are of equal diameter.

[0094] The upper blocking plate 38 is fixedly connected to the connecting plate 42 via the upper connecting rod 39, and the lower blocking plate 40 is fixedly connected to the connecting plate 42 via the lower connecting rod 41. The middle part of the connecting plate 42 is fixedly connected to the internally threaded pipe 43.

[0095] The stud 44 is inserted into the internal threaded tube 43, and the two are threaded together. The stud 44 is fixedly connected to the output shaft of the first drive motor 45.

[0096] The dam body 47 has a drainage surface with an installation hole, and an installation sleeve 46 is inserted inside the installation hole. The first drive motor 45, the stud 44, and part of the internal threaded pipe 43 are set inside the installation sleeve 46, and the internal threaded pipe 43 is slidably connected to the installation sleeve 46.

[0097] The filter cover 8 guides the debris into the collection tank 4704. The first drive motor 45 is started periodically, and the upper block plate 38 moves to the rear of the connection between the water inlet 4706 and the upper connecting cavity 4705, but remains in the water inlet 4706. The lower block plate 40 moves out of the drain control 4708, so that the water flow can discharge the debris inside the collection tank 4704.

[0098] The power generation and distribution assembly 55 includes a generator, a battery, and an electrical control cabinet that are electrically connected to each other and are located inside the enclosure, all of which use existing technology.

[0099] Water flow generates power through the axial flow drive assembly, which is then transmitted to the generator via the constant speed regulating assembly to produce electricity. This electricity is stored in a battery, and the battery's energy powers and controls the submersible pump 51 and other electrical facilities along the riverbank, such as streetlights, through an electrical control cabinet. The submersible pump 51 is connected to surrounding farmland irrigation ditches via pipelines to irrigate the farmland. The opening of the regulating valve 48 is adjusted according to the season and rainfall to regulate the water flow and meet the needs of irrigation and power generation.

[0100] The constant speed regulating assembly is connected to the generator shaft inside the generator and power distribution assembly 55. Since the axis of the second output shaft 15 is perpendicular to the axis of the generator power input shaft, a gearbox 53 is fixed on the upper cover plate 52, and the second output shaft 15 is connected to the gearbox 53. After the gearbox changes direction, the power output shaft 54 ​​of the gearbox 53 is connected to the power input shaft of the generator.

[0101] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A regional power generation and irrigation regulating dam, characterized in that: It includes the dam body (47), the axial flow constant speed power output device, the submersible pump (51), and the power generation and distribution assembly (55). The dam body (47) is provided with several through water passage holes (4701), and the inside of the water passage holes (4701) is provided with a sealed and openable valve plate (48). The dam body (47) is provided with an equipment installation room (4701), and the bottom of the water-facing side of the dam body (47) is provided with a water pump installation pool (4703). The axial flow constant speed power output device includes an axial flow drive assembly and a constant speed adjustment assembly. The axial flow drive assembly is located inside the water passage holes (4701) on both sides of the equipment installation chamber (4701) or inside one of the water passage holes (4701). The constant speed adjustment assembly is located inside the equipment installation chamber (4701). The axial flow drive assembly and the constant speed adjustment assembly are connected by a shaft. The submersible pump (51) is installed inside the pump installation pool (4703); The power generation and distribution assembly (55) includes a generator, a battery and an electrical control cabinet that are electrically connected to each other inside the enclosure. The constant speed regulating assembly is connected to the generator shaft inside the power generation and distribution assembly (55).

2. The regional power generation and irrigation regulating dam according to claim 1, characterized in that: The axial flow drive assembly includes an axial flow cylinder (1) placed inside a water passage (4701). An impeller (3) is rotatably provided in the middle of the axial flow cylinder (1). The impeller (3) is connected to a gearbox through a first rotating shaft (2). After the gearbox achieves rotational reversal, it is connected to a constant speed regulating assembly through a first output shaft (6). The constant speed regulating assembly includes a speed regulating box (9), inside which a drive wheel (11) and a frustum wheel (12) are rotatably provided. A synchronous belt (14) is fitted between the drive wheel (11) and the frustum wheel (12). The drive wheel (11) is coaxially fixedly provided with an input shaft (10) connected to the first output shaft (6). The frustum wheel (12) has a spline hole (1202) arranged axially at its center. A second spline shaft (16) is inserted into the spline hole (1202). The second spline shaft (16) is coaxially fixedly connected to a second output shaft (15). The second output shaft (15) is connected to the generator power input shaft inside the power generation and distribution assembly (55). The speed control box (9) is equipped with an adjustment device connected to the truncated disc wheel (12). The adjustment device controls the truncated disc wheel (12) to move along the axial direction of the second spline shaft (16). The timing belt (14) is internally connected to a tensioning wheel (13), and the timing belt (14) is provided with limiting devices on both sides. The limiting devices prevent the timing belt (14) from moving axially along the second spline shaft (16) with the round wheel (12).

3. A regional power generation and irrigation regulating dam according to claim 2, characterized in that: The frustum wheel (12) has a retaining ring (1201) protruding on its large end, small end, or both large and small ends. The adjustment device includes a servo motor (17), a first screw (21), and a connecting frame (23); The servo motor (17) is fixed inside the speed control box (9) by a bracket, and the first screw (21) is connected to the output end of the servo motor (17); The connecting frame (23) is fixed with a number of nut sleeves (22) and an annular groove (24); The nut sleeve (22) is fitted onto the first screw (21), and the two are connected by threads; The annular groove (24) is fitted onto the retaining ring (1201), and the two are rotatably connected.

4. A regional power generation and irrigation regulating dam according to claim 3, characterized in that: Two connecting frames (23) are symmetrically arranged at both ends of the truncated cone wheel (12) around the axis of the truncated cone wheel (12). The ring groove (24) sleeved on the retaining ring (1201) is fixedly connected to the two connecting frames (23). The nut sleeves (22) on the two connecting frames (23) are respectively threaded with a first screw (21). The first screw (21) is rotatably connected to the speed regulating box (9). The output end of the servo motor (17) is coaxially connected to a second rotating shaft (18), and two second worm gears (19) are fixedly connected on the second rotating shaft (18). The second worm gears (19) are meshed with a second turbine (20), and the second turbine (20) is coaxially fixedly connected to the first screw (21).

5. A regional power generation and irrigation regulating dam according to claim 4, characterized in that: Two to five limiting devices are arranged on the outside of the frustum wheel (12); The limiting device includes a U-shaped frame (31) with its opening facing the synchronous belt (14), and two rotating rollers (32) are rotatably connected to the opening of the U-shaped frame (31). The rotating tube (32) is inserted into the slot (1402). A slide rod (30) is fixed at one end of the U-shaped frame (31) away from the synchronous belt (14), and the axis of the slide rod (30) is arranged radially along the truncated wheel (12); The speed control box (9) is fixedly provided with a sleeve (29), and the end of the slide rod (30) facing away from the U-shaped frame (31) is inserted into the sleeve (29).

6. A regional power generation and irrigation regulating dam according to claim 5, characterized in that: Two tensioning rollers (13) are arranged at intervals on the inner side of the synchronous belt (14). The tensioning rollers (13) are rotatably connected to the adapter frame (25). A guide rod (26) is provided on each side of the tensioning rollers (13). The adapter frame (25) has a through hole at its end. The guide rod (26) passes through the through hole. A spring base is fixed in the middle of the guide rod (26). A spring (28) is provided between the spring base and the adapter frame (25). The spring (28) is sleeved on the guide rod (26). A limiting ring (2601) is provided at the end of the guide rod (26). The two guide rods (26) are fixedly connected by a fixing plate (27). The fixing plate (27) is fixedly connected to the speed control box (9).

7. A regional power generation and irrigation regulating dam according to claims 2 to 6, characterized in that: The axial flow tube (1) has a filter cover (8) at the water inlet end. The filter cover (8) is conical and has filter holes on its surface.

8. A regional power generation and irrigation regulating dam according to claim 7, characterized in that: The water passage (4702) with the axial flow drive assembly installed is located on the inner wall of the front end of the filter cover (8) and has a collection groove (4704). The dam body (47) is provided with an inlet hole (4706) on the water-facing surface and a drain hole (4708) on the drainage surface. The inlet hole (4706) and the drain hole (4708) are respectively located on the upper and lower sides of the collection trough (4704). The inlet hole (4706) is connected to the collection trough (4704) through the upper connecting cavity (4705), and the drain hole (4708) is connected to the collection trough (4704) through the lower connecting cavity (4707). The water inlet (4706) and the drain (4708) are equipped with a debris discharge linkage switch assembly.

9. A regional power generation and irrigation regulating dam according to claim 8, characterized in that: The aforementioned impurity discharge linkage switch assembly includes an upper blocking plate (38), a lower blocking plate (40), a connecting plate (42), an internal threaded tube (43), a stud (44), and a first drive motor (45). The water inlet hole (4706) is a through hole, and an upper blocking plate (38) of equal diameter is slidably provided inside it. The lower blocking plate (40) is slidably provided inside the drain hole (4708), and the lower blocking plate (40) and the drain hole (4708) are of equal diameter. The upper blocking plate (38) is fixedly connected to the connecting plate (42) via the upper connecting rod (39), the lower blocking plate (40) is fixedly connected to the connecting plate (42) via the lower connecting rod (41), and the middle part of the connecting plate (42) is fixedly connected to the internal threaded pipe (43). The stud (44) is inserted into the internal threaded tube (43), and the two are threaded together. The stud (44) is fixedly connected to the output shaft of the first drive motor (45). The dam body (47) has a drainage surface with an installation hole and an installation sleeve (46) inserted inside the installation hole. The first drive motor (45), stud (44) and part of the internal threaded pipe (43) are set inside the installation sleeve (46) and the internal threaded pipe (43) is slidably connected to the installation sleeve (46).

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