CN220059785U

CN220059785U - Overload prevention device for hydroelectric power generation

Info

Publication number: CN220059785U
Application number: CN202321405359.8U
Authority: CN
Inventors: 吴宗林; 宋水利; 杨冰; 陆芳; 宋首兰; 岑国健
Original assignee: Guangxi Shenghui Haihe Hydropower Development Co ltd
Current assignee: Guangxi Shenghui Haihe Hydropower Development Co ltd
Priority date: 2023-06-05
Filing date: 2023-06-05
Publication date: 2023-11-21
Anticipated expiration: 2033-06-05

Abstract

The utility model discloses a hydroelectric power generation overload prevention device, and belongs to the technical field of hydroelectric power generation. The device comprises a generator component, an overload prevention component and a rotating shaft, wherein one end of the rotating shaft is connected with the generator component, and the other end of the rotating shaft stretches into water; one end of the rotating shaft extending into water is sleeved with a driving blade; the overload prevention assembly comprises an overload prevention shell, a spring and a spring block, wherein the overload prevention shell is arranged on the rotating shaft, and the spring block are arranged in the overload prevention shell; one end of the spring is fixed on the rotating shaft, and the other end of the spring is connected with the elastic block respectively; one end of the elastic block, which is far away from the spring, is contacted with the inner wall of the overload prevention shell; the spring and the spring block can rotate together with the rotation of the rotating shaft. In the utility model, the kinetic energy of water flow is converted into mechanical energy by driving the rotating shaft and the driving blades, so as to drive the generator component to generate electricity. The higher the rotating speed of the rotating shaft, the larger the power of the generator is, the friction force between the elastic block and the overload prevention shell is increased, so that the rotating speed of the rotating shaft is limited to achieve the overload protection effect, and the generator component continuously performs power generation.

Description

Overload prevention device for hydroelectric power generation

Technical Field

The utility model relates to the technical field of hydroelectric power generation, in particular to an overload prevention device for hydroelectric power generation.

Background

The hydroelectric power generation is a power generation mode for converting water flow power into electric power, pollution to the environment can not be caused in the hydroelectric power generation process, and the water power generation system is clean energy. Meanwhile, no extra fuel is needed in the hydroelectric power generation process, and energy resources such as petroleum, coal and the like can be saved. However, because the water flow is unstable, the water flow is rapid, so that the rotating speed of the water conservancy power generation equipment is longer than the additional rotating speed, the power generation equipment is easy to overload, and the power generation equipment is easy to burn out and damage.

In the prior art, as in the patent of the utility model, through the arrangement of the driving blade, the second rotating shaft and the movable frame, the driving blade can be driven to rotate through the action of water flow, meanwhile, the movable frame drives the floating block to rotate, through the arrangement of the first rotating shaft, the floating block is matched with the first rotating shaft to drive the generator to work for hydraulic power generation, meanwhile, the problems that the generator cannot be protected, the generator is easily burnt due to overload, and the service life of the generator is shortened are solved.

However, in the patent of the utility model, the generator stops rotating in a mode that the floating blocks are separated from the movable frame, so that overload protection of the generator is achieved. However, the generator cannot continue to generate electricity within a period of time, so that the generator is poor in power generation stability and low in practicability.

Disclosure of Invention

The utility model mainly aims to provide a hydroelectric power generation overload prevention device, which aims to provide an overload prevention component, limit the maximum rotation speed of a rotating shaft through the overload prevention component, further limit the maximum power of a generator and protect the generator from overload.

In order to achieve the above object, the present utility model provides a hydroelectric power generation overload prevention device, comprising:

the device comprises a generator component, an overload prevention component and a rotating shaft, wherein one end of the rotating shaft is connected with the generator component, and the other end of the rotating shaft stretches into water; one end of the rotating shaft extending into water is sleeved with a driving blade; the overload prevention assembly comprises an overload prevention shell, a plurality of springs and a plurality of elastic blocks, wherein the overload prevention shell is arranged on the rotating shaft, and the springs and the elastic blocks are arranged in the overload prevention shell; one end of each spring is fixed on the rotating shaft, and the other end of each spring is connected with each elastic block; one end of the elastic blocks, which is far away from the springs, is contacted with the inner wall of the overload prevention shell; the springs and the elastic blocks can rotate together with the rotation of the rotating shaft.

Optionally, the overload prevention component further comprises a plurality of reinforcing rods, the reinforcing rods are arranged on the rotating shaft, and the springs and the elastic blocks are respectively sleeved on the outer sides of the corresponding reinforcing rods.

Optionally, the inner wall of the overload protection shell is provided with a plurality of latches.

Optionally, the overload prevention assembly is disposed between the generator assembly and the drive blade.

Optionally, the generator assembly includes generator housing, coil and a plurality of magnet, the pivot stretches into in the generator housing, the coil cover is established the pivot outside, a plurality of magnet set up on the inner wall of generator housing.

Optionally, the rotating shaft is coaxially disposed with the generator housing.

Optionally, the plurality of magnets are equidistantly distributed on the inner wall of the generator housing.

Optionally, an elastic washer is arranged at the joint of the rotating shaft and the generator shell, and the elastic washer is sleeved outside the rotating shaft.

Optionally, the same elastic washer is arranged at the joint of the rotating shaft and the overload protection shell.

Optionally, a protective cover is arranged outside the driving blade.

Compared with the prior art, the utility model has the following beneficial effects:

the kinetic energy of the water flow is converted into mechanical energy through the driving rotating shaft and the driving blades, the driving blades drive the rotating shaft to rotate under the action of the water flow, and the rotating shaft drives the generator assembly to generate electricity.

The faster the water flow velocity, the faster the rotating shaft rotating speed is caused, the larger the power of the generator is, the spring and the elastic block rotate along with the rotating shaft, the centrifugal force born by the spring and the elastic block is increased, the elastic block is far away from the rotating shaft, and the friction force of the elastic block and the overload prevention shell is increased, so that the rotating shaft rotating speed is limited. The power of the generator component is limited by limiting the rotating speed of the rotating shaft to achieve the effect of overload protection, and the generator component can continuously perform power generation.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an embodiment of a hydraulic power generation overload protection device according to the present utility model;

FIG. 2 is a schematic illustration of the generator assembly of FIG. 1;

fig. 3 is a top cross-sectional view of the overload prevention assembly shown in fig. 1.

Reference numerals illustrate:

1. a generator assembly; 2. an overload prevention assembly; 3. a rotating shaft; 4. a driving blade; 5. an overload prevention housing; 6. a spring; 7. a spring block; 8. a generator housing; 9. a coil; 10. a magnet; 11. a reinforcing rod; 12. latch teeth; 13. an elastic washer; 14. and a protective cover.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description will be given for the sake of clarity and completeness of the description of the technical solutions according to the embodiments of the present utility model, with reference to the accompanying drawings, wherein it is evident that the described embodiments are only one embodiment of the device according to the present utility model, and not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1 to 3, the present utility model provides an overload prevention device for hydroelectric power generation.

In an embodiment of the utility model, the anti-overload device for hydroelectric power generation comprises a generator component 1, an anti-overload component 2 and a rotating shaft 3, wherein one end of the rotating shaft 3 is connected with the generator component 1, and the other end of the rotating shaft extends into water; one end of the rotating shaft 3 extending into the water is sleeved with a driving blade 4; the overload prevention assembly 2 comprises an overload prevention shell 5, a plurality of springs 6 and a plurality of elastic blocks 7, wherein the overload prevention shell 5 is arranged on the rotating shaft 3, and the springs 6 and the elastic blocks 7 are arranged in the overload prevention shell 5; one end of each spring 6 is fixed on the rotating shaft 3, and the other end of each spring is connected with each elastic block 7; one end of the elastic blocks 7, which is far away from the springs 6, is contacted with the inner wall of the overload prevention shell 5; the springs 6 and the elastic blocks 7 can rotate together with the rotation of the rotating shaft 3.

In the present utility model, it is defined that the generator assembly 1 is disposed at the top end of the rotating shaft, the driving blade 4 is disposed at the bottom end of the rotating shaft 3, and the overload prevention assembly 2 is disposed between the generator assembly 1 and the driving blade 4.

The generator assembly 1 comprises a generator shell 8, a coil 9 and a plurality of magnets 10, the rotating shaft 3 stretches into the generator shell 8, the coil 9 is sleeved on the outer side of the top end of the rotating shaft 3, and the plurality of magnets 10 are arranged on the inner wall of the generator shell 8.

The driving rotating shaft 3 and the driving blades 4 convert the kinetic energy of water flow into mechanical energy, the driving blades 4 drive the rotating shaft 3 to rotate under the action of the water flow, and the rotating shaft 3 drives the coil 9 to cut the magnetic induction lines of the magnets 10 so as to generate electricity.

In order to reduce the conduction loss of electric energy, copper is preferably used as the material for the coil 9. In order to improve the stability of the power generation of the generator assembly 1, the rotating shaft 3 is arranged coaxially with the generator housing 8. The magnets 10 are equidistantly distributed on the inner wall of the generator housing 8.

The faster the velocity of flow of rivers, the greater the kinetic energy that acts on driving vane 4, lead to the rotational speed of pivot 3 is faster, a plurality of bullet piece 7 are along with the pivot 3 rotates centrifugal force increase that receives together, a plurality of bullet piece 7 bear keep away from the centrifugal force of pivot 3 direction is greater than the pulling force of corresponding spring 6, a plurality of bullet piece 7 extrusion overload prevention shell 5 increases a plurality of bullet piece 7 with friction force between the overload prevention shell 5, thereby reduces the rotational speed of pivot 3 avoids generator assembly 1 overload burns out.

The overload prevention assembly 2 further comprises a plurality of reinforcing rods 11, the reinforcing rods 11 are arranged on the rotating shaft 3, and the springs 6 and the elastic blocks 7 are respectively sleeved outside the corresponding reinforcing rods 11. The reinforcing rods 11 are used for reinforcing the stability of the springs 6 and the elastic blocks 7, and prevent the springs and the elastic blocks from being thrown out of a given track due to excessive centrifugal force.

The inner wall of the overload prevention housing 5 is provided with a plurality of latches 12. The latch 12 is evenly distributed on the inner wall of the overload protection shell 5, the latch 12 contacts with the latch 12 under the action of centrifugal force, the latch 12 can effectively clamp the latch 7, so that the rotating speed of the rotating shaft 3 is reduced, the generator component 1 can be better protected, and overload burning of the generator component 1 is avoided.

The rotating shaft 3 and the driving blades 4 are easy to incline under the impact of water flow, so that the generator component 1 and the overload prevention component 2 are unstable in operation, and therefore, an elastic washer 13 is arranged at the joint of the rotating shaft 3 and the generator shell 8, and the elastic washer 13 is sleeved outside the rotating shaft 3. The elastic washer 13 is used for relieving tangential force applied to the rotating shaft 3, so that the rotating shaft 3 is kept vertical. The same elastic washer 13 is arranged at the joint of the rotating shaft 3 and the overload prevention shell 5. It is advantageous to improve the stability of the operation of the generator assembly 1 and overload prevention assembly 2.

A protective cover 14 is arranged outside the driving blade 4. The protecting cover 14 is provided with a plurality of meshes, and water flow is impacted on the driving blade 14 through the meshes. The protection cover 14 is used for protecting the driving blade 4, and preventing sundries in water flow from impacting the driving blade 4 to cause damage.

When the magnetic induction type water heater is used, the rotating shaft 3 and the driving blades 4 are placed in water flow, the driving rotating shaft 3 and the driving blades 4 convert kinetic energy of the water flow into mechanical energy, the driving blades 4 drive the rotating shaft 3 to rotate under the action of the water flow, and the rotating shaft 3 drives the coil 9 to cut magnetic induction lines of the magnets 10 so as to generate electricity.

The faster the velocity of flow of rivers, the greater the kinetic energy that acts on driving vane 4, lead to the rotational speed of pivot 3 is faster, a plurality of bullet piece 7 are along with the pivot 3 rotates centrifugal force increase that receives together, a plurality of bullet piece 7 bear keep away from the centrifugal force of pivot 3 direction is greater than the pulling force of corresponding spring 6, a plurality of bullet piece 7 keep away from pivot 3, with a plurality of latch 12 contact, improve a plurality of bullet piece 7 with friction force between the overload protection shell 5 reaches the effect of reduction pivot 3 to restriction generator module 1 power avoids generator module 1 overload burns out.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. The hydraulic power generation overload prevention device is characterized by comprising a generator component, an overload prevention component and a rotating shaft, wherein one end of the rotating shaft is connected with the generator component, and the other end of the rotating shaft stretches into water; one end of the rotating shaft extending into water is sleeved with a driving blade; the overload prevention assembly comprises an overload prevention shell, a plurality of springs and a plurality of elastic blocks, wherein the overload prevention shell is arranged on the rotating shaft, and the springs and the elastic blocks are arranged in the overload prevention shell; one end of each spring is fixed on the rotating shaft, and the other end of each spring is connected with each elastic block; one end of the elastic blocks, which is far away from the springs, is contacted with the inner wall of the overload prevention shell; the springs and the elastic blocks can rotate together with the rotation of the rotating shaft.

2. The device for preventing overload of hydroelectric power generation according to claim 1, wherein the overload prevention assembly further comprises a plurality of reinforcing rods, the plurality of reinforcing rods are arranged on the rotating shaft, and the plurality of springs and the plurality of elastic blocks are respectively sleeved outside the corresponding reinforcing rods.

3. A hydropower overload prevention device as claimed in claim 1 wherein the inner wall of the overload prevention housing is provided with a plurality of latches.

4. A hydroelectric power generation overload prevention device according to claim 1, wherein the overload prevention assembly is disposed between the generator assembly and the drive blades.

5. A hydroelectric power generation overload prevention device according to claim 1, wherein the generator assembly comprises a generator housing, a coil and a plurality of magnets, the rotating shaft extends into the generator housing, the coil is sleeved outside the rotating shaft, and the plurality of magnets are arranged on the inner wall of the generator housing.

6. A hydropower overload prevention device as claimed in claim 5 wherein the shaft is coaxially arranged with the generator housing.

7. A hydropower overload prevention device according to claim 5, wherein the plurality of magnets are equidistantly arranged on the inner wall of the generator housing.

8. The device of claim 5, wherein an elastic washer is arranged at the joint of the rotating shaft and the generator housing, and the elastic washer is sleeved outside the rotating shaft.

9. The apparatus of claim 8, wherein the same elastic washer is provided at the junction of the shaft and the overload protection housing.

10. A hydropower overload prevention device as claimed in claim 1 wherein a protective cover is provided on the outside of the driving blade.