A water power generation device

Abstract

The utility model relates to the technical field of power generation, concretely relates to a water conservancy power generation device, include: pedestal, the upper end surface fixed connection of base is provided with generator, the upper end surface of base is located the side of generator output and is provided with the confluence assembly, the side away from generator of confluence assembly is provided with the converging flow subassembly, the other side of converging flow subassembly is provided with the buffer assembly. Through buffer assembly realizes to the water flow that acts on converging flow subassembly and carries out the speed reduction, and the water flow after the speed reduction enters into the confluence assembly after the collection and the guidance of converging flow subassembly, water flow pressure and the linkage mechanism of friction cover, can self -adaptation adjust the rotating speed of the shaft, effectively cope with the condition of water flow big and small, flow velocity is not stable, in time limit the rotating speed when water flow is too big, avoid the follow -up equipment such as water turbine damaged because of high -speed impact, guarantee power generation process stable.

Description

Technical Field

[0001] This utility model relates to the field of power generation technology, specifically to a hydroelectric power generation device. Background Technology

[0002] Hydropower generation devices are equipment systems that convert the energy of water flow into electrical energy. They mainly consist of a dam (or sluice gate) to create a water level difference to concentrate water energy. Water flows through a pressure pipe through the inlet to drive a turbine to rotate. The turbine drives a generator rotor to rotate and cut magnetic field lines to generate an induced electromotive force. After being stepped up by power equipment, the electromotive force is transmitted to the power grid through transmission lines. Its core principle is to convert the potential and kinetic energy of water into electrical energy. It has the characteristics of being clean and renewable and is one of the important methods of power production, such as the hydropower generation device disclosed in Chinese Patent Publication No. CN100337022C.

[0003] Existing hydropower plants, when faced with fluctuating water flow and unstable flow velocity caused by factors such as uneven seasonal rainfall, changes in upstream water allocation, and sudden extreme weather events (such as rainstorms and droughts), will experience a series of chain reactions, including reduced power generation efficiency, increased equipment wear and tear, and deterioration of power supply stability. This makes it difficult for the entire power generation system to balance economy, reliability, and power quality, and to achieve continuous, stable, and efficient operation. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a hydropower generation device that can effectively solve the problem that the power generation efficiency is reduced and the equipment wear is aggravated when the water flow is unstable due to factors such as uneven seasonal rainfall, changes in upstream water allocation, and sudden extreme weather.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides a hydroelectric power generation device, comprising:

[0007] A base, on which a generator is fixedly connected, and a current-combining component is provided on the side of the upper end of the base where the generator output is located. A current-converging component is provided on the side of the current-combining component away from the generator, and a buffer component is provided on the other side of the current-converging component.

[0008] Furthermore, the output end of the generator is fixedly connected with three fan blades of different specifications from the inside out.

[0009] Furthermore, the combiner assembly includes a combiner barrel fixedly connected to the upper end face of the base. The combiner barrel has a shaft hole on the side facing the generator. The shaft hole corresponds to the position of the generator's output end, and the generator's output end extends through the shaft hole into the combiner barrel. The fan blades are located inside the combiner barrel.

[0010] Furthermore, the manifold has multiple water outlet holes arranged in a ring array around the shaft hole on the side facing the generator. Multiple inclined square tubes are fixedly connected to the outer circumferential surface of the manifold in a ring array. Multiple diverting blocks are fixedly connected to the interior of each inclined square tube in a linear array along its length. Multiple pairs of guide plates are fixedly connected to the inner circumferential surface of the manifold in a ring array. Each pair of guide plates is located on both sides of the inclined square tube in the length direction.

[0011] Furthermore, the current-gathering assembly includes a current-gathering shroud fixedly connected to the side of the manifold away from the generator. Multiple fixing frames are fixedly connected to the outer circumferential surface of the current-gathering shroud in a ring array. Each fixing frame is fixedly connected to a slip ring on the side away from the manifold. Multiple current-draining shrouds are fixedly connected to the ring array on the side of the current-gathering shroud away from the manifold. A spiral ring is fixedly connected inside each current-draining shroud.

[0012] Furthermore, the buffer assembly includes two mutually symmetrical sliders slidably connected inside the slip ring. The opposing surfaces of the two sliders are rotatably connected to a rotating shaft. Multiple buffer plates are fixedly connected to the shaft in a ring array. Friction covers are rotatably connected to both sides of the shaft near the two sliders. A pressure device is elastically connected to the side of the slider away from the drainage cover. The pressure end of the pressure device is fixedly connected to the outer peripheral surface of the drainage cover.

[0013] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0014] 1. The buffer component reduces the speed of the water flow acting on the converging component. The reduced water flow is then collected and guided by the converging component before entering the merging component. The buffer component utilizes the pressure generated by the water flow to act on the pressure device, which in turn acts on the friction shroud. The friction shroud limits the rotational speed of the shaft according to the pressure. That is, the greater the water flow, the greater the pressure exerted by the pressure device on the friction shroud, and the greater the resistance experienced by the shaft during rotation. Conversely, the smaller the water flow, the smaller the pressure exerted by the pressure device on the friction shroud, and the smaller the resistance experienced by the shaft during rotation. The power for the shaft's rotational speed comes from the impact of the water flow on the buffer plate located on the shaft body. Through the linkage mechanism between the water flow pressure and the friction shroud, the shaft's rotational speed can be adaptively adjusted to effectively cope with situations where the water flow fluctuates greatly or the flow velocity is unstable. When the water flow is too large, the rotational speed is limited in time to prevent damage to downstream equipment such as the turbine due to high-speed impact, thus ensuring the stability of the power generation process.

[0015] 2. The water flow processed by the buffer component is collected and guided into the manifold component. The water entering the manifold component acts on the fan blades, which in turn drive the generator's output end to rotate, thus enabling the generator to operate. When the water flow velocity is high and the volume is large, the inclined square pipe and outlet holes work together to distribute the water flow across different fan blade sizes, preventing damage from excessive impact and maximizing water energy utilization to improve power generation efficiency. Conversely, when the water flow velocity is low and the volume is small, the water flow is controlled to act only on some fan blades, ensuring the generator still operates effectively and reducing energy waste. This regulation mechanism ensures stable and efficient operation of the hydroelectric power generation unit under different water flow conditions, enhancing the system's adaptability and reliability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall side structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the manifold of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the fan blade of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the busbar assembly of this utility model;

[0022] Figure 6 This is a schematic diagram of the current-concentrating component of this utility model;

[0023] Figure 7 This is a schematic diagram of the spiral ring structure of this utility model;

[0024] Figure 8 This is a schematic diagram of the structure of the buffer component of this utility model.

[0025] Reference numerals: 1. Base;

[0026] 2. Generator; 21. Fan blades;

[0027] 3. Combination assembly; 31. Combination tank; 32. Inclined square tube; 321. Drain block;

[0028] 33. Guide plate; 34. Shaft hole; 35. Water outlet hole;

[0029] 4. Concentrating component; 41. Concentrating hood; 42. Fixing bracket; 43. Slip ring; 44. Drainage hood; 45. Spiral ring;

[0030] 5. Buffer assembly; 51. Slider; 52. Rotating shaft; 53. Buffer plate; 54. Friction cover; 55. Pressure device. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0032] The present invention will be further described below with reference to the embodiments.

[0033] Example: Refer to Figures 1 to 8 A hydroelectric power generation device, comprising:

[0034] A base 1 is provided, and a generator 2 is fixedly connected to the upper end of the base 1. A current-combining component 3 is provided on the side of the upper end of the base 1 located at the output end of the generator 2. A current-concentrating component 4 is provided on the side of the current-combining component 3 away from the generator 2. A buffer component 5 is provided on the other side of the current-concentrating component 4.

[0035] The buffer component 5 is used to adjust the flow rate of the water before it enters the converging component 3 through the converging component 4, thereby avoiding the unstable power generation efficiency of the generator 2 caused by the water flow being sometimes large and sometimes small and the flow rate being unstable. The converging component 4 is used to collect the water flow after it has been processed by the converging component 4 and guide the water flow into the converging component 3. The converging component 3 enables the generator 2 to work using the water flow.

[0036] Reference Figures 3 to 4 The output end of generator 2 is fixedly connected with three fan blades 21 of different specifications from the inside to the outside.

[0037] By utilizing three fan blades 21 of different specifications in generator 2, the generator 2 can have different effects when facing different water flow velocities.

[0038] Reference Figures 2 to 3 , Figure 5The combiner assembly 3 includes a combiner barrel 31 fixedly connected to the upper end face of the base 1. The combiner barrel 31 has a shaft hole 34 on the side facing the generator 2. The shaft hole 34 corresponds to the output end of the generator 2, and the output end of the generator 2 extends through the shaft hole 34 into the interior of the combiner barrel 31. The fan blade 21 is located inside the combiner barrel 31.

[0039] The manifold 31 facing the generator 2 has multiple water outlet holes 35 arranged in a ring around the shaft hole 34. Multiple inclined square tubes 32 are fixedly connected to the outer circumferential surface of the manifold 31 in a ring array. Multiple diverting blocks 321 are fixedly connected to the interior of each inclined square tube 32 in a linear array along its length. Multiple pairs of guide plates 33 are fixedly connected to the inner circumferential surface of the manifold 31 in a ring array. Each pair of guide plates 33 is located on both sides of the inclined square tube 32 along its length.

[0040] By using the manifold 31, when the water flow rate is high and the water volume is large, the inclined square tube 32 cooperates with the water outlet 35 to disperse the water flow to the fan blades 21 of different specifications, thus avoiding damage to the equipment due to excessive impact force.

[0041] Reference Figure 1 , Figures 6 to 7 The current-gathering assembly 4 includes a current-gathering shroud 41 fixedly connected to the side of the manifold 31 away from the generator 2. Multiple fixing frames 42 are fixedly connected in a ring array on the outer periphery of the current-gathering shroud 41. A slip ring 43 is fixedly connected to the side of the manifold 31 away from the current-gathering shroud 41 in a ring array. Multiple current-draining shrouds 44 are fixedly connected to the side of the current-gathering shroud 41 away from the manifold 31. A spiral ring 45 is fixedly connected inside each current-draining shroud 44.

[0042] The water flow is collected by the flow-gathering hood 41, and the collected water flow is further guided by the flow-guiding hood 44. Since the flow-guiding hood 44 is equipped with a spiral ring 45, the water flow guided into the confluence tank 31 by the flow-guiding hood 44 will be spiral-shaped, which will then act on the fan blades 21, thereby making the generator 2 work.

[0043] Reference Figure 1 , Figure 8 The buffer assembly 5 includes two symmetrical sliders 51 slidably connected inside the slip ring 43. The opposing surfaces of the two sliders 51 are rotatably connected to a rotating shaft 52. Multiple buffer plates 53 are fixedly connected to the shaft of the rotating shaft 52 in a ring array. Friction covers 54 are rotatably connected to both sides of the rotating shaft 52 near the two sliders 51. A pressure device 55 is elastically connected to the side of the slider 51 away from the drainage cover 44. The pressure end of the pressure device 55 is fixedly connected to the outer peripheral surface of the drainage cover 44.

[0044] The two sliders 51 in the buffer assembly 5 are used to rotate the shaft 52 in the slip ring 43, so that the buffer plate 53 can change its direction when facing water flow from different directions.

[0045] The working principle of this utility model is as follows:

[0046] First, the device is placed in the water flow. At this time, the water flow impacts the buffer plate 53, which pushes the rotating shaft 52 to rotate. The slider 51 automatically adjusts its direction within the slip ring 43 so that the buffer plate 53 is always facing the direction of the water flow. The water pressure is transmitted to the pressure device 55 through the slider 51. The pressure device 55 dynamically adjusts the resistance of the friction cover 54 to the rotating shaft 52 according to the water pressure.

[0047] When the water flow is rapid (large water volume and high flow velocity), the pressure applied by the pressure device 55 to the friction cover 54 increases, and the rotation speed of the shaft 52 is limited to avoid the high-speed water flow from impacting the subsequent components. When the water flow is slow (small water volume and low flow velocity), the pressure applied by the pressure device 55 decreases, the resistance of the friction cover 54 decreases, and the shaft 52 rotates naturally with the water flow to maintain the basic buffering function.

[0048] The buffered water flows into the flow-gathering component 4. When the water flows through the flow-guiding hood 44, the internal spiral ring 45 straightens the turbulent water flow into a spiral shape, stabilizing the flow towards the confluence bucket 31. The flow-gathering hood 41 is fixedly connected to the slip ring 43 by the fixing frame 42, ensuring that multiple sets of flow-guiding hoods 44 are distributed in a ring array, concentrating the direction of water flow and reducing diffusion loss.

[0049] When the water flows from the concentrator 4 into the collector 3

[0050] If the water flow is at a high flow rate: the water flows into the confluence tank 31 through the outlet 35, the guide plate 33 guides the water flow to the inclined square tube 32, the diversion block 321 further divides the water flow in the inclined square tube 32 to form multiple low-speed water flows, and the multiple water flows impact the fan blades 21 (large, medium and small specifications) respectively. While dispersing the impact force, the surface area difference of the fan blades 21 of different specifications is used to fully absorb water energy and drive the generator 2 to run at high speed to generate electricity.

[0051] If the water flow is low: the water flow only passes through part of the water outlet 35 and the inclined square pipe 32, and concentrates the impact on the small-sized fan blades 21 near the output end of the generator 2; the small-sized fan blades 21 can still rotate effectively under low-speed water flow, maintain the basic speed of the generator 2, and avoid shutdown due to insufficient water flow.

[0052] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hydroelectric power generation device, characterized in that, include: A base (1) is fixedly connected to a generator (2) on its upper end surface. A busbar assembly (3) is provided on the side of the upper end surface of the base (1) located at the output end of the generator (2). A current-gathering assembly (4) is provided on the side of the busbar assembly (3) away from the generator (2). A buffer assembly (5) is provided on the other side of the current-gathering assembly (4).

2. The hydroelectric power generation device according to claim 1, characterized in that, The generator (2) has three fan blades (21) of different specifications fixedly connected from the inside to the outside at its output end.

3. A hydroelectric power generation device according to claim 2, characterized in that, The combiner assembly (3) includes a combiner barrel (31) fixedly connected to the upper surface of the base (1). The combiner barrel (31) has a shaft hole (34) on the side facing the generator (2). The shaft hole (34) corresponds to the output end of the generator (2), and the output end of the generator (2) extends through the shaft hole (34) into the combiner barrel (31). The fan blade (21) is located inside the combiner barrel (31).

4. A hydroelectric power generation device according to claim 3, characterized in that, The manifold (31) facing the generator (2) has multiple water outlet holes (35) arranged in a ring around the shaft hole (34). The outer circumferential surface of the manifold (31) is fixedly connected to multiple inclined square tubes (32). The interior of each inclined square tube (32) in the length direction is linearly connected to multiple diverting blocks (321). The inner circumferential surface of the manifold (31) is fixedly connected to multiple pairs of guide plates (33). Each pair of guide plates (33) is located on both sides of the inclined square tube (32) in the length direction.

5. A hydroelectric power generation device according to claim 4, characterized in that, The current gathering assembly (4) includes a current gathering cover (41) fixedly connected to the side of the current gathering tank (31) away from the generator (2). Multiple fixing frames (42) are fixedly connected to the outer circumferential surface of the current gathering cover (41) in an annular array. Each fixing frame (42) is fixedly connected to a slip ring (43) on the side away from the current gathering tank (31). Multiple current guiding covers (44) are fixedly connected to the side of the current gathering cover (41) away from the current gathering tank (31) in an annular array. Each current guiding cover (44) has a spiral ring (45) fixedly connected inside.

6. A hydroelectric power generation device according to claim 5, characterized in that, The buffer assembly (5) includes two mutually symmetrical sliders (51) slidably connected inside the slip ring (43). The opposing surfaces of the two sliders (51) are rotatably connected to a rotating shaft (52). The shaft of the rotating shaft (52) is fixedly connected to a plurality of buffer plates (53) in a ring array. Friction covers (54) are rotatably connected to both sides of the rotating shaft (52) near the two sliders (51). A pressure device (55) is elastically connected to the side of the slider (51) away from the drainage cover (44). The pressure end of the pressure device (55) is fixedly connected to the outer peripheral surface of the drainage cover (44).

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