CN215890298U - Hydroelectric power generation device - Google Patents

Abstract

The utility model belongs to the technical field of hydroelectric power generation, and particularly relates to a hydroelectric power generation device, which comprises: the water wheels are axially divided into more than 2 water storage areas, and when the execution unit opens the water outlet, water in the water storage container can enter the corresponding water buckets of the water storage areas through the water outlet. The utility model has the beneficial effects that: the water wheel is axially divided into at least two water storage areas and can be communicated with the water outlet of the water storage container on the water storage container, and the opening and closing of the water outlet are controlled by the execution unit, so that the water storage areas participating in the power generation process can be adjusted, the water storage areas participating in the power generation in the hydroelectric power generation device can be changed, and the utilization rate of the water area is improved.

Description

Hydroelectric power generation device

Technical Field

The utility model belongs to the technical field of hydroelectric power generation, and particularly relates to a hydroelectric power generation device.

Background

The river water direct flow power generation resource in China is urgently needed to be developed and utilized. The conventional development of water energy resources needs large-scale civil engineering, relates to the mass immigration, submerges excellent cultivated land, destroys living environment of organisms and the like, and has high comprehensive utilization cost. Therefore, the development of new energy for generating electricity by directly flowing river water is an important subject which must be faced by the technical field of hydropower engineering in China.

Under the influence of wind in summer, rivers in China have obvious flood season and dry season, and the water resources in China have the characteristics of more summer and autumn, less winter and spring and large annual change in time distribution; generally, the runoff of 4 months in half a year in summer accounts for 60% -80% of the annual runoff; the seasonal distribution of water resources in China is unbalanced, and the annual change is large. From the aspect of river topography, rivers and lakes are numerous in China, but rivers suitable for hydroelectric power generation are not numerous, and particularly in plain areas, the topography is mostly smooth, water flow is slow, and the hydroelectric power generation device is not suitable for power generation.

On one hand, the flow of the river is uncertain, on the other hand, the water amount which can be borne by a water wheel in the related art is fixed, and the utility model has a large-scale gravity type water turbine generator set equipment with the application number of 201810323370.7, the utility model utilizes the water guide sheet to guide the water flow into the water wheel so as to realize the power generation, but in the dry season, the impact force carried by the water flow guided by the water guide sheet can not overcome the friction force of the water wheel during the work, so that the water wheel can not work normally due to the absence of a stable driving source, and the power generation effect is lost; the utility model discloses a top rear drainage formula waterwheel of waterwheel formula hydraulic generator of application number 201510916261.2, this utility model is equally unsuitable to be worked in the waters that possess the dry season or the waters that flow is lower, especially the waters that flow is lower.

SUMMERY OF THE UTILITY MODEL

The utility model aims to at least solve the problem that the hydroelectric power generation device in the prior art or the related art cannot adapt to the flow change of a water area.

In view of the above, the present invention provides a water guide apparatus, including: the water wheel is axially divided into at least 2 water storage areas along the water wheel, the water storage areas are provided with blades, and the blades divide the water storage areas into more than 2 water hoppers; the water storage container is arranged at the top of the water wheel, and the bottom of the water storage container is provided with at least 2 water outlets; the execution unit is used for controlling the opening and closing of the water outlet; the water storage areas correspond to the water outlets one by one, and when the execution unit opens the water outlets, water in the water storage container can enter the corresponding water buckets of the water storage areas through the water outlets.

Further, the blades of the adjacent water storage areas are arranged in a staggered mode.

Furthermore, the hydroelectric generation device comprises a middle shaft and a generator, the water wheel is in transmission connection with the middle shaft, and the middle shaft is in transmission connection with the generator.

Further, the hydroelectric power generation device comprises a gearbox, the middle shaft is in transmission connection with the generator, and the hydraulic hydroelectric power generation device specifically comprises: the middle shaft is in transmission connection with the gearbox, and the gearbox is in transmission connection with the generator.

Further, hydroelectric power generation device includes the energy storage flywheel, the axis with the generator transmission is connected, specifically is: the middle shaft is in transmission connection with the energy storage flywheel, and the generator is in transmission connection with the energy storage flywheel.

Furthermore, the hydroelectric generation device comprises a first support and a second support, the first support is arranged on one side of the water wheel, the second support is arranged on the other side of the water wheel, and the first support and the second support are used for supporting the middle shaft.

Furthermore, the hydroelectric generation device comprises a water guide plate, water guide parts are arranged along the length direction of the water guide plate, the water guide parts extend along the width direction of the water guide plate, and the water guide plate is attached to the outer edge of the water wheel.

Furthermore, hydroelectric power generation device includes first support strip and second support strip, wherein, first support strip one end with water guide plate one side meets, the first support strip other end with first support meets, second support strip one end with the water guide plate opposite side meets, the second support strip other end with the second support meets.

Furthermore, the first support is provided with a first bearing seat, and the second support is provided with a second bearing seat, wherein the first bearing seat is used for supporting one end of the middle shaft, and the second bearing seat is used for supporting the other end of the middle shaft.

Further, the delivery port includes first delivery port, second delivery port and third delivery port, the water storage district includes first water storage district, second water storage district and third water storage district, wherein, first delivery port can communicate first water storage district with water container, the second delivery port can communicate the second water storage district with water container, the third delivery port can communicate third water storage district with water container.

The utility model has the beneficial effects that: the water wheel is axially divided into at least two water storage areas and can be communicated with the water outlet of the water storage container on the water storage container, and the opening and closing of the water outlet are controlled by the execution unit, so that the water storage areas participating in the power generation process can be adjusted, the water storage areas participating in the power generation in the hydroelectric power generation device can be changed, and the utilization rate of the water area is improved.

Drawings

FIG. 1 illustrates a schematic structural view of a hydro-power generation device according to an embodiment of the present invention;

FIG. 2 shows a detail view at A of FIG. 1;

FIG. 3 illustrates a schematic representation of a paddlewheel configuration of a hydro-power generation device according to an embodiment of the present disclosure;

FIG. 4 illustrates a cross-sectional view of a water storage area of a waterwheel of a hydro-power generation device, in accordance with one embodiment of the present invention;

FIG. 5 illustrates a schematic structural view of a hydro-power generation device according to an embodiment of the present invention;

FIG. 6 illustrates a schematic partial structural view of a hydro-power generation device according to an embodiment of the present invention;

FIG. 7 illustrates a schematic partial structural view of a hydro-power generation device according to an embodiment of the present invention;

FIG. 8 illustrates an operational schematic of a water deflector of a hydro-power generation device according to an embodiment of the present invention;

fig. 9 is an operation diagram of a water guide panel without a water guide part;

FIG. 10 illustrates an assembled cross-sectional view of a water conducting portion of a hydro-power generation device according to an embodiment of the present invention;

FIG. 11 illustrates a schematic structural view of a water storage area of a hydro-power generation device in accordance with an embodiment of the present invention;

the correspondence between reference numerals and component names in fig. 1 to 11 is shown in the following table:

Detailed Description

So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the utility model, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Before describing the related embodiments of the present invention, a description of the related art will be required. Hydroelectric power plants generally generate electricity through a flow of water: when water flow introduced by the hydroelectric generation device passes through the water wheel, the kinetic energy and the gravitational potential energy of the water are converted into mechanical energy for driving the water wheel to rotate; the generator converts the mechanical energy into electric energy and outputs the electric energy.

Some embodiments of the utility model are described below with reference to fig. 1-11.

As shown in fig. 1, 3 and 4, the present invention provides a hydroelectric power generating apparatus comprising: the water wheel 1 is axially divided into at least 2 water storage areas along the water wheel 1, the water storage areas are provided with blades 101, and the blades 101 divide the water storage areas into more than 2 water hoppers 102; the water storage container 2 is arranged at the top of the water wheel 1, and the bottom of the water storage container 2 is provided with at least 2 water outlets; the execution unit is used for controlling the opening and closing of the water outlet; the water storage areas correspond to the water outlets one by one, and when the execution unit opens the water outlets, water in the water storage container can enter the water hoppers 102 of the corresponding water storage areas through the water outlets.

It can be understood that, for one water storage area, only one water outlet is needed to be communicated with the water storage container, so the water storage area and the water outlet are arranged in a one-to-one correspondence manner, as shown in fig. 1 and 3, the water wheel 1 is axially divided into a first water storage area 1001, a second water storage area 1002 and a third water storage area 1003, correspondingly, the water storage container is provided with a first water outlet 201, a second water outlet 202 and a third water outlet 203, wherein the first water outlet 201 corresponds to the first water storage area 1001 and can be communicated with the first water storage area 1001 and the water storage container 2, the second water outlet 202 corresponds to the second water storage area 1002 and can be communicated with the second water storage area 1002 and the water storage container 2, and the third water outlet 203 corresponds to the third water storage area 1003 and can be communicated with the third water storage area 1003 and the water storage container 2.

It can be understood that, water wheels 1 are axially divided into more than 2 water storage areas, and the utilization rate of water flow can be improved. For example, as shown in fig. 1, 3 and 11, taking 3 water storage areas, a first water storage area 1001, a second water storage area 1002 and a third water storage area 1003 as an example, water is drawn from a river into the water storage container 2, when the river is in the dry period, the flow rate of the river is small, the speed is slow, after the water storage container is used for a period of time, a certain water level is formed, at this time, the execution unit only opens the first water outlet 201 at the bottom of the water storage container 2 to communicate the water storage container 2 with the water wheel 1, water in the water storage container enters the water bucket 102 in the first water storage area 1001 through the first water outlet 201, and as the water level in the water storage container 2 has a certain height, in the process of the water flow entering the water bucket 102, the gravitational potential energy of water is converted into the kinetic energy of the water flow, the water flow with certain kinetic energy impacts the first water storage area 1001, on one hand, the kinetic energy of the water flow is converted into the kinetic energy of the water wheel 1, and on the other hand, the water flow can stay in the water bucket 102 of the first water storage area 1001. During the rotation of the water wheel 1, the gravitational potential energy of the water flow is further converted into the kinetic energy of the water wheel 1. The two kinds of energy conversion avoid the situation that the water flow cannot drive the water wheel 1 to rotate due to insufficient water in a dry season, improve the rotating speed of the water wheel 1 and increase the generating capacity of the water wheel 1; when the river is in a water-rich period, the execution unit opens the first water outlet 201 and the second water outlet 202, water flow in the water storage container 2 respectively enters the water bucket 102 of the first water storage area 1001 and the water bucket 102 of the second water storage area 1002 through the first water outlet 201 and the second water outlet 202, kinetic energy and gravitational potential energy carried by larger water amount are converted into kinetic energy of the water wheel 1, the water amount in the water-rich period is fully utilized, and the generating capacity of the water wheel 1 is increased; when the river is in a rainstorm period, the execution unit opens the first water outlet 201, the second water outlet 202 and the third water outlet 203, the bucket 102 of the first water storage area 1001, the bucket 102 of the second water storage area 1002 and the bucket 102 of the third water storage area 1003 are respectively communicated, compared with a water rich period, the water amount in the rainstorm period is larger, the three water outlets are all opened, so that a plurality of water flows entering the water storage container 2 can rapidly enter the water wheel 1, the rotating speed of the water wheel 1 is further increased, and correspondingly, the power generation amount of the water wheel 1 is also increased.

The water wheels 1 can be axially separated by the annular baffle 1101, so that water storage areas with required quantity are formed, the water wheels 1 adapt to the variable flow, and power generation is performed. The execution unit can be provided with valves at each water outlet, when the river water flow is obviously changed, such as in a rainstorm period, a plurality of valves can be opened according to the requirement, so that a sufficient number of water outlets can work, water flow enters the water bucket 102 through the water outlets, and the water wheel 1 is driven to rotate, so as to increase the generated energy; the execution unit may be: different threshold values are designed for the water level of the water storage container 2, and when the water level reaches different threshold values, a specified number of water outlets are opened, so that water flows into the water bucket 102 through the water outlets, and the water wheel 1 is driven to rotate, so that the generating capacity is increased. The setting of the execution unit belongs to the content of the related technology, and any person skilled in the art can control the opening and closing of the water outlet in the above manner.

Specifically, as shown in fig. 3, the vanes 101 of the adjacent water storage areas are staggered.

It can be understood that the blades 101 of the adjacent water storage areas can be arranged in a staggered manner, and as the water wheels 1 are axially provided with a plurality of water storage areas, the water storage areas mainly play a role in bearing water flow, so that the kinetic energy and the gravitational potential energy of the water flow can be converted into the kinetic energy of the water wheels 1. It can be understood that the flow rate of the water flow is constant in a certain time, when the blades 101 start to receive the impact from the water flow, since the blades 101 are always in a moving state, the impact surface with the water flow is not always constant, i.e. the energy conversion speed of the water flow is variable, which means that when the blades 101 are in a position close to the water outlet to receive the impact, the conversion amount is larger, and when the blades 101 are far from the water outlet to receive the impact, the conversion amount is smaller, the water flow impacts the blades 101 in the water storage area, and the blades 101 are arranged in a staggered manner, so that the blades 101 always receive the impact from the water flow at a position close to the water outlet without increasing the number of the blades 101, on one hand, the rotation speed of the water wheel 1 body is maintained in a stable interval, and on the other hand, the stable speed enables the operation of the water wheel 1 to be smoother and more stable.

In order to enable the generator 3 to convert the kinetic energy of the water wheel 1 into electric energy, a central shaft 103 may be provided, for example, as shown in fig. 3, the central shaft 103 may penetrate through the water wheel 1 to be in transmission connection with the water wheel 1, and the transmission connection may be understood as a connection manner commonly used in the related art. The middle shaft 103 in transmission connection with the water wheel 1 is in transmission connection with the generator 3, so that the process of converting the kinetic energy of the water wheel 1 into the electric energy stored by the generator 3 is realized, and the hydroelectric power generation device completes the power generation work.

It can be understood that the transmission 32 can reduce the transmission ratio between the generator 3 and the water wheel 1, the transmission 32 is connected between the generator 3 and the water wheel 1 in a transmission manner, and the water wheel 1 with a slow rotation speed is used for driving the generator 3 to run fast for generating power, so that the power generation efficiency is improved.

It can be understood that the energy storage flywheel 31 breaks through the limitation of the chemical battery, and realizes energy storage by a physical method. An energy storage flywheel 31 can be connected between the generator 3 and the water wheel 1 in a transmission manner, when the water wheel 1 is driven by water flow, the kinetic energy of the water wheel 1 is partially converted into the kinetic energy of the energy storage flywheel 31, and the energy storage flywheel 31 stores the energy in the form of the kinetic energy; when the water wheel 1 is not driven by water flow, the energy storage flywheel 31 rotating at high speed drags the generator 3 to generate electricity, and the energy release process from mechanical energy to electric energy conversion is completed. Therefore, the arrangement of the energy storage flywheel 31 ensures the continuity and reliability of the power supply of the water wheel 1.

It can be understood that, the connection between the water wheel 1, the generator 3 and the energy storage flywheel 31, the transmission connection between the water wheel 1, the generator 3 and the speed changer 32 can be realized through the shaft coupling, and when different shafts are connected, the excessive loss of kinetic energy in the process of converting electric energy caused by different concentricity between the shafts can be avoided through the shaft coupling connection. The energy storage flywheel 31 and the transmission 32 may be combined with each other and assembled between the water wheel 1 and the generator 3, that is, between the water wheel 1 and the generator 3, and may be directly connected in a transmission manner, or may be connected in a transmission manner through the energy storage flywheel 31 or the transmission 32, as shown in fig. 2, or may be connected in a transmission manner through the transmission 32 and the energy storage flywheel 31.

In the above embodiment, as shown in fig. 1, fig. 2 and fig. 5, in order to support the center shaft 103 and enable the center shaft 103 to rotate, a first support 41 and a second support 42 may be provided, the first support 41 is disposed on one side of the water wheel 1, the second support 42 is disposed on the other side of the water wheel 1, a first bearing seat 411 may be disposed on the first support 41, a second bearing seat 422 is disposed on the second support 42, and the center shaft 103 is disposed on the first bearing seat 411 and the second bearing seat 422, so that on one hand, the bearing seats bear a load from the water wheel 1, and on the other hand, the bearing seats are disposed so that the center shaft 103 can rotate under the driving of the water wheel 1, and transmit kinetic energy of the water wheel 1 to the generator 3 to convert the kinetic energy into electric energy, thereby achieving the power generation effect.

Specifically, since the direction of the opening of the bucket 102 changes during the rotation process, on the other hand, the water flow hits the bucket 102 through the water outlet, there is a possibility of hitting the bucket 102, a water guide plate 5 may be attached to the outer edge of the water wheel 1, and a water guide portion 501 is disposed on the water guide plate 5, as shown in fig. 8, 9 and 10, after the water guide portion 501 is assembled, the other end thereof is in a naturally drooping state and forms an acute angle with the water guide plate 5, the dotted line in the figure indicates the thrown water flow, when the water flow is thrown out from the water wheel 1 and hits the water guide portion 501, the water flow direction should be a tangential direction of the throwing position, the water guide portion 501 receives the water flow and blocks back into the water wheel 1, it is obvious that the height of the water flow returning to the water wheel 1 in fig. 8 is higher than the height of the water flow returning to the water wheel 1 in fig. 9, that even though the water amount staying in the water wheel 1 is larger, the thrown water flow is more quickly returned to the water wheel 1, accordingly, the water flow has more gravitational potential energy and kinetic energy which can be converted into the kinetic energy of the water wheel 1, thereby improving the generating efficiency. It is understood that when the water guide panel 5 has a circular arc shape or other irregular shape, the water guide portion 501 forms an acute angle with a tangent line of a position corresponding to the water guide panel 5.

The water guide 501 may be provided on the water guide panel 5 by: as shown in fig. 10, the water guide panel 5 has a mounting groove 5011 on one surface thereof, and the mounting groove 5011 has a shape having a small opening space and a large internal space. It can be understood that the water guide part 501 can be conveniently and rapidly installed on the water guide panel 5 by being pushed into the installation groove 5011. The side wall of the mounting groove 5011 can be further provided with a through hole, and one end of the water guide part 501 penetrates through the through hole to enter the mounting groove 5011, so that the water guide part 501 is quickly assembled on the mounting groove 5011. In addition to the above connection method, the water guide portion 501 may be formed by welding, bonding, or the like, and the water guide portion 501 is provided on the water guide plate 5, so that the water guide portion 501 can guide back the water flow from the hydroelectric power generation device, thereby improving the power generation efficiency. The size and shape of the water guide 501 may be changed according to actual circumstances.

In the above embodiment, as shown in fig. 6 and 7, the water guide plate 5 may be attached to the outer edge of the water wheel 1 in the following manner: the hydroelectric generation device is provided with a first supporting strip 51 and a second supporting strip 52, one end of the first supporting strip 51 is connected with one side of the water guide plate 5, the other end of the first supporting strip is connected with the first bracket 41, one end of the second supporting strip 52 is connected with the other side of the water guide plate 5, and the other end of the second supporting strip is connected with the second bracket 42. By utilizing the stable supporting function of the first support 41 and the second support 42, the water guide plate 5, the first support 41 and the second support 42 are connected through the supporting bars, so that the water guide plate 5 is attached to the outer edge of the water wheel 1 and is not in contact with the water wheel 1, and the water guide plate 5 plays a role in blocking water flow splashed from the water bucket 102 back to the water bucket 102.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A hydro-power generation device, comprising:

the water wheel is axially divided into at least 2 water storage areas along the water wheel, the water storage areas are provided with blades, and the blades divide the water storage areas into more than 2 water hoppers;

the water storage container is arranged at the top of the water wheel, and the bottom of the water storage container is provided with at least 2 water outlets;

the execution unit is used for controlling the opening and closing of the water outlet;

the water storage areas correspond to the water outlets one by one, and when the execution unit opens the water outlets, water in the water storage container can enter the corresponding water buckets of the water storage areas through the water outlets.

2. The hydro-power generation device of claim 1, wherein the vanes of adjacent water storage areas are staggered.

3. The hydro-power generation device of claim 1, wherein the hydro-power generation device comprises a central shaft and a generator, wherein the water wheel is in drive connection with the central shaft, and the central shaft is in drive connection with the generator.

4. The hydroelectric power generation device of claim 3, comprising a gearbox, wherein the central shaft is in driving connection with the generator, in particular: the middle shaft is in transmission connection with the gearbox, and the gearbox is in transmission connection with the generator.

5. The hydroelectric power generation device of claim 3, comprising an energy storage flywheel, wherein the central shaft is in driving connection with the generator, and specifically comprises: the middle shaft is in transmission connection with the energy storage flywheel, and the energy storage flywheel is in transmission connection with the generator.

6. The hydro-power generation device of claim 3, wherein the hydro-power generation device comprises a first bracket and a second bracket, the first bracket is disposed on one side of the paddlewheel, the second bracket is disposed on the other side of the paddlewheel, and the first bracket and the second bracket are both configured to support the central axle.

7. The hydro-power generation device of claim 6, wherein the first bracket is provided with a first bearing block and the second bracket is provided with a second bearing block, wherein the first bearing block is configured to support one end of the center shaft and the second bearing block is configured to support the other end of the center shaft.

8. The hydroelectric power generation device according to claim 6, wherein the hydroelectric power generation device comprises a water guide plate, wherein water guide portions are arranged along a length direction of the water guide plate, the water guide portions extend along a width direction of the water guide plate, and the water guide plate is attached to an outer edge of the water wheel.

9. The hydro-power generation device of claim 8, comprising a first support bar and a second support bar, wherein one end of the first support bar is connected to one side of the water deflector, the other end of the first support bar is connected to the first support bar, one end of the second support bar is connected to the other side of the water deflector, and the other end of the second support bar is connected to the second support bar.

10. The hydro-power generation device of claim 1, wherein the water outlet comprises a first water outlet, a second water outlet, and a third water outlet, and the water storage area comprises a first water storage area, a second water storage area, and a third water storage area, wherein the first water outlet is capable of communicating the first water storage area with the water storage container, the second water outlet is capable of communicating the second water storage area with the water storage container, and the third water outlet is capable of communicating the third water storage area with the water storage container.

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