CN219119366U

CN219119366U - River hydroelectric power generation equipment

Info

Publication number: CN219119366U
Application number: CN202122454278.4U
Authority: CN
Inventors: 吴小占; 吴昊璞; 吴怡静
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2023-06-02
Anticipated expiration: 2031-10-12

Abstract

The utility model relates to river hydroelectric power generation equipment, which defines the flow direction of a river to flow from front to back, wherein the power generation equipment comprises more than two hulls, a water wheel assembly is connected between two adjacent hulls, the water wheel assembly comprises a main shaft and a water wheel, one of the two hulls is provided with a gearbox and a generator, the front ends of the two hulls are surrounded with drainage vertical plates, the height of the drainage vertical plates is greater than that of the hulls, the two drainage vertical plates are respectively provided with a left drainage vertical plate at the right side position of the front end of the left hull, and a right drainage vertical plate at the left side position of the front end of the right hull; the left drainage riser and the right drainage riser form a drainage port of a V-shaped structure, a guiding structure for guiding the drainage riser to move up and down in a guiding manner so as to enter water is connected between the ship body and the corresponding drainage riser, and a driving structure for driving the drainage riser to move up and down is further arranged on the ship body. Simple structure, the commonality is better moreover, and generating efficiency improves greatly.

Description

River hydroelectric power generation equipment

Technical Field

The utility model relates to a river hydroelectric power generation device.

Background

Along with the rapid development of technology, the application range of equipment to electric energy is wider and wider, and the demand is gradually increased.

In order to realize energy conservation and emission reduction and realize the purpose of carbon neutralization, the method can be replaced by adopting wind power generation, photovoltaic power generation and hydroelectric power generation, the traditional hydroelectric power generation engineering has high efficiency, but is limited by the condition of geographical environment, a dam is required to be built according to local conditions, the investment is large, the construction period is long, the environment such as local climate can be greatly influenced, the potential energy fall is small in a plurality of water flow areas with gentle topography, the dam cannot be built, and the method for generating power by utilizing water flow which is relatively gentle and lower is a direction which can be studied.

The Chinese patent of the utility model with the publication number of CN207500037U discloses a river floating hydroelectric power station, the document discloses a structural form of adopting two floating vessels to be arranged side by side at intervals, arranging a water wheel between the two floating vessels to realize hydroelectric power generation, arranging a guide plate obliquely fixed at the side of the floating vessel at the bow of the floating vessel, connecting bottom plates at the bottoms of the two guide plates, and introducing water flow between the guide plates through guide spaces formed by surrounding the guide plates, the bottom plates and the like.

However, this form of construction has the following problems in practical use: (1) The total weight of the ship body is consistent, the wading depth is basically fixed, so that the water depth of the river is limited to a certain extent, and the universality is poor; (2) The structural style of guide board and bottom plate is in the in-service use, and the bottom of guide board can not be lower than the hull and excessively hang down, otherwise can't effectively pass through when the position that the water is shallower, but is too near to the hull bottom, has produced the interference to the size of water wheel again, leads to the reduction that the water wheel width must adapt to, and then influences generating efficiency.

Disclosure of Invention

The utility model aims to provide river hydroelectric power generation equipment, which solves the problems that the trafficability and the power generation efficiency are affected due to the arrangement form of a guide plate and a bottom plate of a floating power station in the prior art.

In order to solve the problems, the river hydroelectric power generation equipment provided by the utility model adopts the following technical scheme:

the river hydroelectric power generation equipment defines the flow direction of a river to flow from front to back, the power generation equipment comprises more than two hulls which are arranged side by side at intervals along the left-right direction, a water wheel assembly is connected between the two adjacent hulls, the water wheel assembly comprises a main shaft with two ends respectively assembled on the two hulls in a rotating way, a water wheel is arranged on the main shaft, one of the two hulls is provided with a gearbox and a generator which are connected with the water wheel assembly, the front end side walls of the two hulls are surrounded with drainage vertical plates, the height of the drainage vertical plates is greater than that of the hulls, the two drainage vertical plates are respectively arranged at the front end right side position of the hulls arranged at the left side, and the front end left side position of the hulls arranged at the right side is provided with a right drainage vertical plate; the left drainage riser and the right drainage riser form a flow guiding opening of a V-shaped structure, a guiding structure for guiding the drainage riser to move up and down in a guiding way so as to enter water is connected between the ship body and the corresponding drainage riser, and a driving structure for driving the drainage riser to move up and down is further arranged on the ship body.

Further, the water wheel assemblies are more than two, are arranged between the ship bodies at intervals along the front-back direction, synchronous driving wheels are arranged on the main shafts of the water wheel assemblies, and the two adjacent water wheel assemblies synchronously rotate through the synchronous driving wheels.

Further, the main shaft is formed by coaxially and detachably connecting and combining a plurality of sectional shafts, the water wheel comprises a plurality of blades wound on the axes of the sectional shafts, and the corresponding blades on the two adjacent sectional shafts are spliced and butted.

Further, the side wall of the side, facing the water flow, of the blade when underwater is provided with an inward concave arc-shaped surface.

Furthermore, the left end and the right end of the water wheel are plugged with plugging plates.

Further, the driving structure is a hydraulic cylinder which is arranged on the ship body and extends up and down, and the hydraulic cylinder is connected with a hydraulic pump.

Further, the ship body is provided with an upper layer and a lower layer, a plurality of water bins are arranged in the lower layer of the ship body, and water inlets and water pumps are arranged on the water bins.

The beneficial effects of the utility model are as follows: compared with the prior art, in the actual use process, after the ship body reaches the designated position, the ship body is fixed in water by the anchor cable, the drainage vertical plate on the ship body is lowered by the driving structure after the distance between the ship bottom and the river bottom surface is measured, the drainage vertical plate is directly contacted with the river bottom, the resistance is caused to the water flow at the bottom of the ship body, the impact force of the water flow between two adjacent ship bodies on the water wheels is increased, the diameter size of the water wheels can be designed as large as possible, the water flow passing in unit time is improved, and the power generation efficiency is further improved. In addition, the drainage vertical plate is designed to be capable of lifting up and down, so that the drainage vertical plate can adapt to rivers with different water depths, and the drainage vertical plate is lowered to a certain depth when the river water is deep; when river water is shallow, the drainage vertical plates are lowered slightly, stable support can be achieved, limited flowing water can be guided between two ship bodies, and the flow rate of water flowing through the two ship bodies in corresponding unit time is increased. Simple structure, the commonality is better moreover, and generating efficiency improves greatly.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the following briefly describes the drawings that are required to be used in the embodiments:

FIG. 1 is a schematic view of a construction of an embodiment 1 of a river hydropower device of the utility model;

FIG. 2 is a bottom cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of the assembled structure of the drainage riser and hull of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the impeller of FIG. 1;

fig. 5 is a schematic structural view of embodiment 2 of the river hydroelectric power plant of the present utility model.

Reference numerals illustrate: 1-left hull; 2-right hull; 3-water wheel assembly; 4-a main shaft; 5-blocking plate; a 6-bearing assembly; 7-reinforcing beams; 8-a synchronous driving wheel; 9-split shaft; 10-left drainage vertical plates; 11-right drainage riser; 12-a hydraulic cylinder; 13-a hydraulic pump; 14-a guide rod; 15-a guide groove; 16-water bin; 17-a gearbox; an 18-generator; 19-leaf blades; 20-hull; 21-impeller assembly.

Detailed Description

In order to make the technical purpose, technical scheme and beneficial effect of the present utility model more clear, the technical scheme of the present utility model is further described below with reference to the accompanying drawings and specific embodiments.

In the concrete embodiment 1 of the river hydroelectric power generation equipment, as shown in fig. 1 to 4, the flow direction of a river is defined to flow from front to back, the power generation equipment comprises two hulls which are arranged side by side along the left-right direction at intervals, namely a left hull 1 and a right hull 2, a water wheel assembly 3 is connected between the left hull 1 and the right hull 2, the water wheel assembly 3 comprises a main shaft 4 with two ends respectively assembled on the left hull 1 and the right hull 2 in a rotating way, a water wheel is arranged on the main shaft 4, one end of the main shaft 4 is connected with a gearbox 17 and a generator 18, and particularly grooves are reserved on two opposite side walls of the two hulls, bearing assemblies 6 for supporting the main shaft 4 are arranged in the grooves, the rotation support of the main shaft 4 is realized through the bearing assemblies 6 at the two ends, and meanwhile, in order to ensure the assembly stability of the hulls and the water wheel assembly 3, the two hulls are fixedly connected through a connecting reinforcing beam 7 at the middle position.

For the main shaft 4 and the water wheels, two water wheel assemblies 3 are arranged between the ship bodies at intervals along the front-rear direction, the main shaft 4 of each water wheel assembly 3 is provided with a synchronous driving wheel 8, and the two water wheel assemblies 3 synchronously rotate through the synchronous driving wheels 8. That is, the front water wheel is the main water wheel, and the rear water wheel is the auxiliary water wheel. The synchronous driving wheel 8 is a driving chain wheel and realizes driving connection through a chain. The main water wheels and the auxiliary water wheels are in a group, the main water wheels are driven by water power to rotate in the actual operation process through sprocket wheel transmission on one side, the generator is driven to generate power, meanwhile, the auxiliary water wheels are driven by water power to transmit power to the main water wheels through the sprockets, the main water wheels and the auxiliary water wheels are mutually promoted through the sprockets, the rotation speed is synchronous, the main water wheels and the auxiliary water wheels are synchronous, the double wheels rotate, and the torsion force can be greatly improved.

Further, the main shaft 4 is formed by coaxially and detachably connecting and combining a plurality of sections of split shafts 9, the water wheel comprises a plurality of blades 19 which are wound on the axes of the split shafts 9, and the blades 19 on the two adjacent split shafts 9 are spliced and butted. The device is mainly used for facilitating transportation, disassembly, assembly and maintenance and adapting to different river channel widths. The specific split shafts 9 are provided with positive and negative ends, coaxial assembly is realized through flange connection and other connection modes, the blades 19 on the split shafts 9 are circumferentially arranged on the split shafts 9 at intervals, and the side wall of one side of each blade 19 facing water flow when underwater is an inwards concave arc surface.

In addition, the left end and the right end of the water wheel are plugged with the plugging plates 5, so that water flow can only flow into the water wheel, can not flow out from the two ends of the main shaft 4, and can flow away downwards after the water wheel is pushed.

In the embodiment, the front end side walls of the two hulls are surrounded by drainage vertical plates, the height of the drainage vertical plates is larger than that of the hulls, the two drainage vertical plates are respectively provided with a left drainage vertical plate 10 at the right side position of the front end of the left hull 1 and a right drainage vertical plate 11 at the left side position of the front end of the right hull 2; the left drainage riser 10 and the right drainage riser 11 form a flow guiding opening with a V-shaped structure, a guiding structure for guiding the drainage riser to move up and down in a guiding way so as to enter water is connected between the ship body and the corresponding drainage riser, and a driving structure for driving the drainage riser to move up and down is further arranged on the ship body. Wherein the driving structure is a hydraulic cylinder 12 which is arranged on the ship body and extends up and down, and the hydraulic cylinder 12 is connected with a hydraulic pump 13. The guiding structure is a guide rod 14 attached to the inner side surface of the drainage riser and extending up and down, and a guide groove 15 assembled with the guide rail in a guiding way is fixed on the ship body.

In addition, in this embodiment, in order to guarantee the stability of hull, the opposite side of hull dorsad drainage riser is equipped with the external drainage board, and the front end concatenation closure of external drainage board and drainage riser makes the hull avoid unstability, guarantees the effective flow of rivers simultaneously, prevents to cause the impact to hull itself.

Meanwhile, in the embodiment, the ship body is provided with an upper layer and a lower layer, the lower layer is internally provided with a plurality of water tanks 16, and the water tanks 16 are provided with water inlets and water pumps. The water level control device can adapt to different water depths, the height of the water wheel combined with the water surface is adjusted, and the upper layer is used for installing the generator 18, the corresponding inverter, the power distribution cabinet and other devices.

Taking yellow river water as an example, the depth of main river bed water is generally 3-4 meters, the flow rate per second is about 2 meters, if a 200Kw generator 18 is installed, the generator 18 which needs to be adapted is 250 horsepower, the length of the water wheel is designed to be about 25 meters according to the measurement and calculation of water flow force, the height of the arc-shaped surface of each blade 19 is designed to be about 3.5 meters, the water wheel is driven by water power of nearly hundred tons per second, and the power generation is realized by the synchronous operation of the two water wheel assemblies 3 and the double-wheel rolling.

Example 2: as shown in fig. 5, when the power generation device is applied to a wider river channel, a mode of arranging a plurality of hulls 20 side by side at intervals (the number of the hulls 20 is not limited) can be adopted, the water wheel assemblies 21 between two adjacent hulls 20 are basically consistent with those of the embodiment 1, bearings are arranged on the left side and the right side of each hull 20 and are assembled with the corresponding wind wheel assemblies 21, and meanwhile, the external drainage plate in the embodiment 1 forms a drainage structure in the process of generating power by another group of water wheels. The whole structure is simple, the assembly is convenient, and each ship body is arranged in a straight line by the same connecting method, so that the device can adapt to river channel hydroelectric power generation with different widths.

Finally, what should be said is: the above embodiments are only for illustrating the technical solution of the present utility model, and any equivalent replacement of the present utility model and modification or partial replacement without departing from the spirit and scope of the present utility model should be covered in the scope of the claims of the present utility model.

Claims

1. The river hydroelectric power generation equipment is characterized by comprising more than two hulls which are arranged side by side at intervals along the left-right direction, wherein a water wheel assembly is connected between the two adjacent hulls, the water wheel assembly comprises a main shaft with two ends respectively assembled on the two hulls in a rotating way, a water wheel is arranged on the main shaft, one of the two hulls is provided with a gearbox and a generator which are connected with the water wheel assembly, the side walls of the front ends of the two hulls are surrounded by drainage vertical plates, the height of the drainage vertical plates is larger than that of the hulls, the left drainage vertical plates are respectively arranged at the position of the front end right side of the hull which is arranged on the left side, and the right drainage vertical plates are respectively arranged at the position of the front end left side of the hull which is arranged on the right side; the left drainage riser and the right drainage riser form a flow guiding opening of a V-shaped structure, a guiding structure for guiding the drainage riser to move up and down in a guiding way so as to enter water is connected between the ship body and the corresponding drainage riser, and a driving structure for driving the drainage riser to move up and down is further arranged on the ship body.

2. The river hydroelectric power generation equipment of claim 1, wherein more than two water wheel assemblies are arranged between the ship bodies at intervals along the front-rear direction, synchronous driving wheels are arranged on main shafts of the water wheel assemblies, two adjacent water wheel assemblies synchronously rotate through the synchronous driving wheels, and the gearbox and the generator are in transmission fit with one main shaft.

3. The river hydroelectric power generation equipment of claim 1, wherein the main shaft is formed by coaxially and detachably connecting and combining a plurality of sectional shafts, the water wheel comprises a plurality of blades wound on the axes of the sectional shafts, and the corresponding blades on the two adjacent sectional shafts are spliced and butted.

4. A river hydroelectric power plant according to claim 3 in which the side wall of the side of the blade facing the flow of water when submerged is an inwardly concave arcuate surface.

5. The apparatus according to any one of claims 1 to 4, wherein the left and right ends of the water wheel are plugged with plugs.

6. A river hydroelectric power plant according to any of claims 1 to 4 in which the drive structure is a hydraulic cylinder disposed on the hull and extending up and down, the hydraulic cylinder being connected to a hydraulic pump.

7. The river hydropower device according to any one of claims 1-4, wherein the hull has an upper layer and a lower layer, the lower layer has a plurality of water tanks in the hull, and the water tanks are provided with water inlets and water pumps.