CN112412685A

CN112412685A - Self-interacting hydroelectric generation device

Info

Publication number: CN112412685A
Application number: CN202011306642.6A
Authority: CN
Inventors: 钱王强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-02-26

Abstract

The invention discloses a self-adjusting hydroelectric generation device which comprises a dam bank with a groove, wherein a generator is arranged in the dam bank, a main shaft is rotatably connected in the groove of the dam bank through a bearing, one end of the main shaft, which is positioned in the dam bank, is fixedly connected with the corresponding generator, a plurality of rotating blades are welded on the side wall of the main shaft, the cross sections of the rotating blades are in a concave shape with upward openings, telescopic plates are slidably connected in the grooves of the rotating blades, speed adjusting devices are arranged in the rotating blades, and a circulating water cooling device is arranged in the main shaft. Has the advantages that: the hydraulic power generation device can automatically regulate and control the rotating speed according to the rotating speed of the main shaft, avoids the phenomenon that the main shaft is over-speed for a long time to cause the burning of a motor, avoids unnecessary economic loss, allows over-speed within a certain time, avoids the phenomenon that the over-speed can occur in the front stage time of opening a gate and draining water, directly withdraws the expansion plate to cause the waste of energy, and has better heat dissipation effect.

Description

Self-interacting hydroelectric generation device

Technical Field

The invention relates to the technical field of hydropower equipment, in particular to a self-adjusting hydropower device.

Background

With the continuous development of economy, energy sources are continuously consumed, nonrenewable resources such as petroleum, coal and the like can be used up for one day, so that the development of renewable energy sources such as wind energy, geothermal energy, tidal energy, hydroenergy and the like is the most important, hydroelectric power generation is one of the most common renewable energy sources, for example, a three gorges dam built in China, the problem of flood is solved, meanwhile, the renewable energy sources are continuously provided for people, the annual power generation amount can reach 988 hundred million kilowatts, and the hydroelectric power generation can not leave a hydroelectric power generation device, and an impeller is impacted by water level difference to rotate to generate power.

Among the prior art, current hydroelectric device does not possess self-adjusting device, and when the flood season comes, dam water storage increases, and the switching-off is drained and is made hydroelectric device be in high rotational speed state for a long time, probably leads to the generator to burn out, leads to unnecessary economic loss, and current hydroelectric device's radiating effect is relatively poor simultaneously. Therefore, we propose a self-regulating hydroelectric power generation device.

Disclosure of Invention

The invention aims to solve the problems that a hydroelectric generating set cannot self-regulate rotating speed and has poor heat dissipation effect in the prior art, and provides a self-regulating hydroelectric generating set.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a self-interacting hydroelectric generation device, is including seting up the notched dam bank, be provided with the generator in the dam bank, it is connected with the main shaft to rotate through the bearing in the recess of dam bank, the main shaft is located one end in the dam bank and corresponds generator fixed connection, the welding of main shaft lateral wall has a plurality of commentaries on classics leaves, the cross-section of commentaries on classics leaf is opening character cut in bas-relief shape up, sliding connection has the expansion plate in the recess of commentaries on classics leaf, be provided with speed adjusting device in the commentaries on classics leaf, be provided with the.

In foretell self-interacting hydroelectric generation device, speed adjusting device is including seting up the first installation cavity in the commentaries on classics leaf, first installation cavity is close to the first spring of the interior roof fixedly connected with of main shaft one side, the one end that the main shaft was kept away from to first spring with the inside wall that main shaft one side was kept away from to first installation cavity all has glued first conducting strip, the commentaries on classics leaf is close to and is provided with first electro-magnet in the lateral wall of main shaft one side, first electro-magnet and two first conducting strip passes through the wire and establishes ties.

In the above self-adjusting hydroelectric power generation device, the circulating water cooling device comprises a circulating water cavity and a plurality of water inlet holes, the water inlet holes are communicated with the circulating water cavity and the outside, a second installation cavity is arranged in the rotating blade, the second installation cavity penetrates through the main shaft and extends into the circulating water cavity, a magnetic plate is sleeved in the second installation cavity in a sealing and sliding manner, a second spring is fixedly connected between the magnetic plate and the rotating blade, a second conducting strip is glued on the upper surface of the magnetic plate and the top wall of the second installation cavity, a second electromagnet is arranged in the rotating blade, the second electromagnet is connected with the second conducting strip in series through a conducting wire, a circulating water pipe is arranged in the dam, one end of the circulating water pipe extends into the circulating water cavity, the other end of the circulating water pipe extends to the outside, and a section of the circulating water pipe, which is positioned in the dam, is coiled on the surface of the generator, and a water cooling speed adjusting device is arranged in the main shaft.

In foretell self-interacting hydroelectric generation device, water-cooling speed adjusting device includes that two are seted up the sliding tray at the circulating water intracavity lateral wall, the baffle has been cup jointed in the sliding tray sealed slip, fixedly connected with third spring between baffle and the main shaft.

In foretell self-interacting hydroelectric generation device, the inside wall of commentaries on classics leaf has a plurality of sliders through spacing groove sliding connection, the slider is jointly with the welding of expansion plate lateral wall.

Compared with the prior art, the invention has the advantages that:

1. when the dam is large in water storage capacity and water is discharged when a gate is opened, water flow impacts the rotating blade to enable the rotating speed of the main shaft to be too high, the centrifugal force generated by rotation is large, the centrifugal force generated by rotation overcomes the elastic force of the first spring to enable the two first conducting strips to be contacted, the first electromagnet is electrified to generate magnetic attraction to the telescopic plate, the telescopic plate retracts into the rotating blade, the area of the water flow impacting the rotating blade is reduced, the rotating speed of the main shaft is reduced, the phenomenon that a generator is burnt down due to the fact that the main shaft is in a high rotating speed state for a long time is avoided, and unnecessary economic loss is;

2. under the condition of low water storage capacity, the rotating speed of the spindle is too high at the moment of opening the brake and discharging water, but a certain distance exists between the two first conducting strips, so that the spindle needs a certain time for contacting under the action of centrifugal force, and after the rotating speed is stable, the first spring enables the first conducting strips to reset, so that the expansion plate cannot be retracted within the front section time of opening the brake and discharging water, the power generation device is allowed to operate at a high rotating speed for a period of time, and the energy waste caused by directly retracting the expansion plate due to overhigh rotating speed is avoided;

3. along with the rotation of the rotating blade along with the main shaft, the magnetic plate slides towards the second electromagnet under the action of centrifugal force, so that the two second conducting strips are contacted, the second electromagnet is electrified to generate magnetic repulsion force on the magnetic plate, the magnetic plate rebounds under the action of the magnetic repulsion force and slides back under the action of the centrifugal force, namely, the magnetic plate reciprocates when the main shaft rotates, water is pumped into the circulating water cavity through the water inlet hole and then is pressed into the circulating water pipe to carry out circulating water cooling on the generator, and a better heat dissipation effect is achieved;

4. when the rotating speed of the main shaft is in a normal state, the first electromagnet is not electrified and does not generate magnetic force, the baffle is positioned outside the sliding groove, so that the water inflow of the circulating water cavity is reduced, the circulating water cooling speed is low, when the rotating speed of the main shaft is too high, the first electromagnet is electrified and generates magnetic force to attract the baffle, the baffle slides into the sliding groove, the water inflow of the circulating water cavity is increased, the circulating water cooling speed is high, and the circulating water cooling speed can be regulated and controlled according to the rotating speed of the main shaft.

Drawings

FIG. 1 is a schematic diagram of a self-regulating hydroelectric power generation apparatus according to the present invention;

FIG. 2 is an enlarged view of a self-regulating hydroelectric power generation apparatus of the present invention at location A;

FIG. 3 is an enlarged view of a self-regulating hydroelectric power plant according to the present invention at point B;

FIG. 4 is an enlarged view of a self-regulating hydroelectric power plant according to the present invention at point C;

fig. 5 is a cross-sectional view at D of a self-regulating hydro-power plant according to the present invention.

In the figure: 1 dam bank, 2 main shafts, 3 generators, 4 rotating blades, 5 first installation cavities, 6 first conducting plates, 7 first springs, 8 first electromagnets, 9 expansion plates, 10 circulating water cavities, 11 water inlet holes, 12 second installation cavities, 13 magnetic plates, 14 second springs, 15 second conducting plates, 16 second electromagnets, 17 sliding grooves, 18 baffles, 19 third springs, 20 circulating water pipes, 21 limiting grooves and 22 sliding blocks.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1-5, a self-interacting hydroelectric generation device, including seting up notched dam bank 1, be provided with generator 3 in the dam bank 1, it is connected with main shaft 2 to rotate through the bearing in the recess of dam bank 1, the bearing between dam bank 1 and the main shaft 2 is sealed bearing, main shaft 2 is located the one end of dam bank 1 and corresponds generator 3 fixed connection, 2 lateral wall welding of main shaft have a plurality of commentaries on classics leaf 4, the cross-section of commentaries on classics leaf 4 is the shape of character cut with an upside down in the opening, sliding connection has expansion plate 9 in the recess of commentaries on classics leaf 4, initial condition, expansion plate 9 is in the state of stretching out completely, guarantee water impact area, make full use of hydroenergy, be provided with speed adjusting device in the.

Speed adjusting device is including offering the first installation cavity 5 in the rotating vane 4, first installation cavity 5 is close to the first spring 7 of interior roof fixedly connected with of main shaft 2 one side, the one end that main shaft 2 was kept away from to first spring 7 and the inside wall that main shaft 2 one side was kept away from to first installation cavity 5 all are glued first conducting strip 6, gliding first conducting

strip

6 and 5 damping sliding connection of first installation cavity, first conducting strip 6 slowly slides under the centrifugal force effect, when sliding contactless, the main shaft still keeps the maximum rotational speed, allow the main shaft to rotate at an excessive speed for a period, avoid leading to the expansion plate 9 to withdraw because of the overspeed of the switching on water front segment time, make energy utilization insufficient, be provided with first electro-magnet 8 in the lateral wall that rotating vane 4 is close to main shaft 2 one side, first electro-magnet 8 passes through the wire series connection with two first conducting strips 6.

The circulating water cooling device comprises a circulating water cavity 10 and a plurality of water inlet holes 11 which are arranged in a main shaft 2, the water inlet holes 11 are communicated with the circulating water cavity 10 and the outside, one-way valves are arranged in the water inlet holes 11 and only allow water to flush the water inlet holes 11 to enter the circulating water cavity 10, a second mounting cavity 12 is arranged in a rotating blade 4, the second mounting cavity 12 penetrates through the main shaft 2 and extends into the circulating water cavity 10, a magnetic plate 13 is sleeved in the second mounting cavity 12 in a sealing and sliding mode, a second spring 14 is fixedly connected between the magnetic plate 13 and the rotating blade 4, the stiffness coefficient of the second spring 14 is small, therefore, in the rotating process of the main shaft 2, the magnetic plate 13 starts to slide, a second conducting strip 15 is glued on the upper surface of the magnetic plate 13 and the inner top wall of the second mounting cavity 12, a second electromagnet 16 is arranged in the rotating blade 4, the second electromagnet 16 is connected with the second conducting strip 15 in series through a conducting wire, and a, circulating pipe one end extends to in the circulating water chamber 10, and the other end extends to the external world, and one section snake shape that circulating pipe 20 is located dam bank 1 spirals on generator 3 surface, makes magnetic sheet 13 reciprocating motion through centrifugal force and the magnetic force of second electro-magnet 16, with water suction circulating water chamber 10 and the circulating pipe 20 of impressing, carries out the water-cooling to generator 3, is provided with water-cooling speed adjusting device in the main shaft 2.

The water-cooling speed adjusting device comprises two sliding grooves 17 formed in the inner side wall of the circulating water cavity 10, a baffle 18 is sleeved in the sliding grooves 17 in a sealing and sliding mode, the baffle 18 is made of ferromagnetic materials, a third spring 19 is fixedly connected between the baffle 18 and the spindle 2, and when the water-cooling speed adjusting device is used for overspeed, the first electromagnet 8 generates magnetic force to attract the baffle 18 simultaneously, so that the baffle 18 slides into the sliding grooves 17, the water inflow is increased, and the circulating water-cooling speed is accelerated.

The inside wall of commentaries on classics leaf 4 has a plurality of sliders 22 through spacing groove 21 sliding connection, and slider 22 is common with the welding of expansion plate 9 lateral wall, through spacing groove 21 and slider 22's cooperation, carries on spacingly to the slip of expansion plate 9, avoids its roll-off to change leaf 4.

In the invention, when a brake is opened and water is discharged, water flow falls from a high position to impact the rotating blade 4 and the expansion plate 9, so that the main shaft 2 rotates and generates electricity through the generator 3, if the rotating speed is normal, the centrifugal force borne by the first conducting plate 6 cannot overcome the elastic force of the first spring 7 and does not move, if an overspeed phenomenon occurs, the first conducting plate 6 overcomes the elastic force of the first spring 7 and slowly slides to the other first conducting plate 6 under the action of the centrifugal force, if the main shaft 2 has overspeed under the condition of large water quantity due to the front section time of water discharge after the brake is opened, the water quantity is gradually reduced in the sliding process of the first conducting plate 6, the rotating speed of the main shaft 2 returns to normal, the first conducting plate 6 resets under the elastic force of the first spring 7, and the device is allowed to operate at the overspeed for a period;

if the device is in an overspeed state due to the fact that the dam water storage capacity is large, the device is in the overspeed state for a long time, the two first conducting strips 6 are in contact, the first electromagnet 8 is electrified, the first electromagnet 8 generates magnetic force, the telescopic plate 9 is attracted, the telescopic plate 9 slides towards the main shaft 2, the water flow slides in the rotary blade 4, the area of the rotary blade 4 is impacted by the water flow, and therefore the main shaft 2 is reduced to rotate, and the generator 3 is protected;

in the rotation process of the main shaft 2, along with the rotation of the rotating blade 4 along with the main shaft 2, the magnetic plate 13 slides towards the second electromagnet 16 under the action of centrifugal force, in the sliding process, water is sucked into the circulating water cavity 10 through the water inlet hole 11, along with the continuous sliding of the magnetic plate 13, the two second conducting strips 15 are contacted, the second electromagnet 16 is electrified to generate magnetic repulsion force on the magnetic plate 13, the magnetic plate 13 rebounds under the action of the magnetic repulsion force, the water in the circulating water cavity 10 is pressed into the circulating water pipe 20, the generator is subjected to circulating water cooling and then is discharged to the outside, the magnetic plate 13 then continuously slides towards the second electromagnet 16 under the action of the centrifugal force, and the water cooling and heat dissipation are repeatedly and continuously carried out;

when the rotating speed of the main shaft 2 is in a normal state, the first electromagnet 8 is not electrified and does not generate magnetic force, the baffle 13 is positioned outside the sliding groove, so that the water inflow of the circulating water cavity 10 is reduced, when the rotating speed of the main shaft is too high, the first electromagnet 8 is electrified and generates magnetic force to attract the baffle 13, so that the baffle 13 slides into the sliding groove 17, the water inflow of the circulating water cavity 10 is increased, and the reciprocating motion speed of the magnetic plate 13 is directly proportional to the water inflow of the circulating water cavity 10 in unit time, so that when the device is overspeed, the circulating water cooling speed can be increased, and the circulating water cooling speed can be regulated and controlled according to the rotating speed of the main shaft.

Although the terms of the dam, the main shaft 2, the generator 3, the rotating blade 4, the first mounting cavity 5, the first conductive plate 6, the first spring 7, the first electromagnet 8, the expansion plate 9, the circulating water cavity 10, the water inlet hole 11, the second mounting cavity 12, the magnetic plate 13, the second spring 14, the second conductive plate 15, the second electromagnet 16, the sliding groove 17, the baffle 18, the third spring 19, the circulating water pipe 20, the limiting groove 21, the sliding block 22, and the like are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a self-interacting hydroelectric generation device, is including seting up notched dam bank (1), its characterized in that, be provided with generator (3) in dam bank (1), it is connected with main shaft (2) to rotate through the bearing in the recess of dam bank (1), main shaft (2) are located one end in dam bank (1) and correspond generator (3) fixed connection, main shaft (2) lateral wall welding has a plurality of commentaries on classics leaf (4), the cross-section of commentaries on classics leaf (4) is opening character cut in bas-relief up, sliding connection has expansion plate (9) in the recess of commentaries on classics leaf (4), be provided with speed adjusting device in commentaries on classics leaf (4), be provided with the circulating water cooling device in main shaft (2).

2. The self-adjusting hydroelectric device according to claim 1, wherein the speed adjusting device comprises a first installation cavity (5) arranged in the rotary vane (4), the first installation cavity (5) is close to a first spring (7) fixedly connected to the inner top wall of one side of the main shaft (2), one end of the first spring (7) far away from the main shaft (2) and the inner side wall of the first installation cavity (5) far away from one side of the main shaft (2) are both glued with a first conductive sheet (6), a first electromagnet (8) is arranged in the side wall of the rotary vane (4) near one side of the main shaft (2), and the first electromagnet (8) is connected with two first conductive sheets (6) in series through a wire.

3. The self-adjusting hydroelectric generation device according to claim 1, wherein the circulating water cooling device comprises a circulating water cavity (10) and a plurality of water inlet holes (11) which are formed in the main shaft (2), the water inlet holes (11) communicate the circulating water cavity (10) with the outside, a second mounting cavity (12) is formed in the rotating blade (4), the second mounting cavity (12) penetrates through the main shaft (2) and extends into the circulating water cavity (10), a magnetic plate (13) is hermetically and slidably sleeved in the second mounting cavity (12), a second spring (14) is fixedly connected between the magnetic plate (13) and the rotating blade (4), a second conducting strip (15) is glued on the upper surface of the magnetic plate (13) and in the second mounting cavity (12), a second electromagnet (16) is arranged in the rotating blade (4), and the second electromagnet (16) is connected in series with the second conducting strip (15) through a conducting wire, be provided with circulating pipe in dam bank (1), circulating pipe one end extends to in circulating water chamber (10), and the other end extends to the external world, one section snake shape that circulating pipe (20) are located dam bank (1) is coiled and is in generator (3) surface, be provided with water-cooling speed adjusting device in main shaft (2).

4. A self-regulating hydropower device according to claim 3, wherein the water-cooling speed regulating device comprises two sliding grooves (17) formed in the inner side wall of the circulating water cavity (10), a baffle (18) is hermetically and slidably sleeved in the sliding grooves (17), and a third spring (19) is fixedly connected between the baffle (18) and the main shaft (2).

5. A self-regulating hydropower device according to claim 2, wherein the inner side wall of the rotating blade (4) is slidably connected with a plurality of sliding blocks (22) through a limiting groove (21), and the sliding blocks (22) are welded together with the side wall of the expansion plate (9).