CN211692694U - Underwater generator and underwater power generation system - Google Patents

Abstract

The utility model discloses an underwater generator, which comprises a rotating part and a central rod; the rotating part is fixedly connected with a magnetic part; one end of the central rod is provided with a winding; the outer wall of the rotating part is provided with a plurality of blades; the central rod is connected with a piston , the lower part of the rotating part is provided with a pressurized water chamber, and the piston is provided in the pressurized water chamber. An underwater power generation system includes an underwater generator, a water delivery pipe is connected to a pressurized water chamber, a power generation device is arranged at one end of the water delivery pipe, the windings of the underwater generator and the power generation device are all electrically connected with a processing device, and the processing device is responsible for the electric power to output. When the rotating part is impacted by the water flow in the vertical direction, part of the impact force acts on the rotating motion of the rotating part, and part of the impact force acts on the up and down movement of the rotating part, regardless of the displacement of the waves in the vertical direction, improving utilization of ocean energy. The seawater flows into the power generation device through the water pipeline, and the power generation device further utilizes the potential energy of the seawater.

Description

An underwater generator and underwater power generation system

technical field

The utility model relates to the technical field of hydropower generation, in particular to an underwater generator and an underwater power generation system.

Background technique

Energy is the pillar supporting the survival and development of modern human society. With the development of the world economy and the increasing depletion of resources such as coal and petroleum, traditional fossil energy is far from meeting the needs of human beings. Therefore, clean energy and renewable energy are particularly important for the future development and progress of the world.

Ocean energy has entered people's field of vision because of its rich reserves, wide distribution, cleanliness and no pollution. Ocean energy mainly includes wave energy, tidal energy, ocean current energy, salt difference energy, and temperature difference energy. Wave energy has the characteristics of high energy density and wide distribution, and its global actual exploitable amount is the largest among all ocean energy, about 3×10^8kW. At present, the main way to develop and utilize ocean energy is to generate electricity.

In the prior art, there are mainly two ways to utilize ocean wave energy:

(1) Australian submarine floating generator: As the waves on the sea surface collide with the buoy, the energy is transferred through the displacement of the buoy, and the sealed seawater is squeezed into the pipeline passing through the bottom of the seabed to reach the hydropower station on the shore. The collected high-pressure seawater drives turbines to produce electricity and desalination is also possible. This zero-emission energy can partially power hydropower plants and desalination plants, helping to produce more energy and fresh water. In the second type, the buoys rise and fall in the waves, and hydraulic pumps on the seabed circulate the fluid in a closed loop, about 3 kilometers long, that extends to power generation facilities on the coast.

(2) Scottish underwater turbine generator: The turbine is installed on the seabed and uses tidal energy to generate electricity. Similar to a wind turbine, this tidal turbine has 3 blades and a pitch system, and is used to make the turbine 180 when the tide changes direction. yaw system with degree steering.

Among them, the Australian submarine floating generator uses the vertical displacement of the ocean waves as power, and turns the hydroelectric generator into electrical energy, which has low utilization rate of ocean waves, and the power generation efficiency is greatly affected by the waves. , then its power generation efficiency is low, in addition, it occupies a large area, and its application range is limited.

The Scottish underwater turbine generator uses an underwater device similar to wind power to obtain the kinetic energy of the tide and convert it into electricity, and the British Isles where it is used has unique advantages for developing ocean energy, especially Surrounded by sea on three sides, Scotland is surrounded by high winds and waves all year round. However, it has high requirements on the site used, and may not be applicable in other marine fields, and the scope of application is greatly limited.

Utility model content

The technical problem to be solved by the present invention is to provide an underwater generator and an underwater power generation system to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or create conditions.

The solution that the utility model solves its technical problem is:

An underwater generator includes a rotating part and a central rod, the rotating part is sleeved in the central rod, a plurality of magnetic parts are fixedly connected to the inner wall of the rotating part, and one end of the central rod close to the rotating part is provided with a Winding, the outer wall of the rotating part is provided with a number of blades, the blades are evenly distributed on the outer wall of the rotating part, the blades extend in the direction away from the central rod, and the end of the central rod away from the rotating part is connected with a piston , a pressurized water chamber is provided below the rotating part, and the piston is provided in the pressurized water chamber and slides in the pressurized water chamber.

Through the above technical solution, when the rotating part is impacted by the water flow in the vertical direction, part of the impact force acts on the rotating motion of the rotating part, and part of the impact force acts on the up and down movement of the rotating part. Compared with directly placing on the sea surface and using the ups and downs of waves to generate electricity, this scheme does not need to consider the displacement of the waves in the vertical direction, and uses the flow of seawater to a great extent, improving the utilization rate of ocean energy.

As a further improvement of the above technical solution, the blade is in an "S" shape.

Through the above technical solution, the "S"-shaped blade can be suitable for the non-directional flow of the fluid on both sides of the blade, so that the blade can drive the independent layer to achieve clockwise and counterclockwise rotation, and the driving requirements of the two rotation methods are basically the same.

As a further improvement of the above technical solution, the rotating part includes several independent layers, adjacent independent layers are rotatably connected, and a plurality of the blades are arranged on the outer wall of the independent layers and are distributed equidistantly around the circumference of the central rod.

Through the above technical solution, when the seawater is divided into a plurality of independent layers to flow, the independent layers can be easily driven to rotate.

As a further improvement of the above technical solution, the number of the windings corresponds to the number of independent layers, the windings are arranged on the inner wall of the central rotating shaft, and the outer wall of the central rotating shaft is provided with a protective layer.

Through the above technical solution, the number of windings corresponds to the number of independent layers, and when only one of the independent layers rotates, the current only flows through the corresponding winding, reducing current consumption during transmission.

As a further improvement of the above technical solution, the rotating part is configured as a spherical shape.

Through the above technical solution, the spherical and peripheral blades adapt to the variability of ocean waves, and the spherical rotating part also greatly reduces the wear caused by the friction of seawater flowing in all directions, and is suitable for various ocean circulations.

As a further improvement of the above technical solution, the buoyancy of the rotating part in water is at least equal to the overall gravity of the rotating part, the central rod includes a central rotating shaft and a push rod, and the ends of the rotating shaft and the push rod that are close to each other are fixedly connected with A connecting ring, the two connecting rings are sleeved with each other.

Through the above technical solution, in the seabed where the seawater flows to the complex, the central rotating shaft and the push rod are connected by the connecting ring, so that the rotating part and the central rotating shaft can be inclined with the flow of the fluid, so that the rotating part can comply with the flow of the fluid, and the energy collection efficiency is improved. High, and the use of connecting rings to connect to avoid directly driving the piston by the straight rod, reduce the damage probability of the central rod, and improve the service life of the underwater generator.

As a further improvement of the above technical solution, the piston is provided with a one-way valve, the flow direction of the one-way valve is from top to bottom, and the lower end of the pressurized water chamber is provided with a water outlet.

Through the above technical solution, when the piston is displaced upward, the one-way valve is opened, and the seawater flows from the upper part of the pressurized water chamber to the lower part of the pressurized water chamber; when the piston is displaced downwards, the one-way valve is closed, and the piston squeezes the seawater from the out of the water outlet.

An underwater power generation system, comprising any one of the above-mentioned underwater generators, wherein a water delivery pipe is connected to a pressurized water chamber of the underwater generator, the water delivery pipe is communicated with the pressurized water chamber, and the water delivery pipe is far away from the water One end of the lower generator is provided with a power generating device, and the windings of the underwater generator and the power generating device are both electrically connected to the processing device, and the processing device outputs electric power.

Through the above technical solution, the seawater squeezed by the piston flows into the power generation device through the water delivery pipe, the power generation device further utilizes the potential energy of the seawater, and the current generated by the power generation device and the winding flows to the processing device for processing, and finally flows out from the processing device.

As a further improvement of the above technical solution, the power generation device includes a power generation chamber and an impeller, the impeller is arranged in the power generation chamber, the water delivery pipe is arranged above the power generation chamber, and the water delivery pipe is eccentrically arranged on one side of the impeller, so When the impeller rotates, electricity is generated and transmitted to the processing device.

Through the above technical solution, the water from the water pipe falls to cause the impeller to rotate, and the rotation of the impeller converts the potential energy of the falling water into electrical energy, and further utilizes the energy in the seawater.

The beneficial effect of the utility model is that when the rotating part is impacted by the water flow in the vertical direction, part of the impact force acts on the rotating motion of the rotating part, and part of the impact force acts on the up and down movement of the rotating part. Compared with directly placing on the sea surface and using the ups and downs of waves to generate electricity, this scheme does not need to consider the displacement of the waves in the vertical direction, and uses the flow of seawater to a great extent, improving the utilization rate of ocean energy. The seawater squeezed by the piston flows into the power generation device through the water pipe, and the power generation device further utilizes the potential energy of the seawater. The current generated by the power generation device and the winding flows to the processing device for processing, and finally flows out from the processing device.

The utility model is used in the technical field of hydropower generation.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly describes the accompanying drawings that are used in the description of the embodiments. Obviously, the described drawings are only a part of the embodiments of the present invention, but not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings according to these drawings without creative work.

Fig. 1 is the overall structure schematic diagram of the underwater generator of the present utility model;

Fig. 2 is the overall structure schematic diagram of another angle of the underwater generator of the present utility model;

Fig. 3 is the partial sectional structure schematic diagram of piston;

4 is a schematic diagram of the overall structure of the underwater power generation system of the present invention.

In the figure, 100, power generation device; 110, power generation chamber; 120, impeller; 200, processing device; 300, rotating part; 310, independent layer; 311, blade; 312, magnetic part; 400, center rod; 401, connecting ring ; 410, central shaft; 420, push rod; 421, piston; 500, water pressure chamber; 510, one-way valve; 520, water pipe.

Detailed ways

The concept, specific structure and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, those skilled in the art can obtain other embodiments without creative work, All belong to the scope of protection of the present invention. In addition, all the coupling/connection relationships mentioned in the text do not mean that the components are directly connected, but refer to a better coupling structure by adding or reducing coupling accessories according to specific implementation conditions. Various technical features in the present invention can be combined interactively on the premise of not contradicting each other.

Referring to FIG. 4 , an underwater power generation system includes an underwater generator and a power generation device 100 and a processing device 200 .

Referring to FIGS. 1 and 2 , the underwater generator includes a spherical rotating part 300 and a central rod 400 . The overall density of the rotating part 300 is lower than that of seawater. The outer surface of the rotating part 300 is coated with a sparse magnetic induction line coating, and the inner surface is coated with a dense magnetic induction line coating. The spherical rotating part 300 is divided into four independent layers 310 , the four independent layers 310 can rotate independently, and six blades 311 are evenly distributed on the circumference of the outer wall of each independent layer 310 . The blade 311 is in the shape of "S", and the blade 311 of the "S" shape is suitable for the non-directional flow of the fluid on both sides of the blade 311, so that the blade 311 can drive the independent layer 310 to rotate clockwise and counterclockwise, and the two kinds of rotation The way to promote the demand is basically the same. A plurality of magnetic pieces 312 are fixedly connected to the inner wall of the rotating portion 300 , and adjacent magnetic pieces 312 have opposite magnetic properties at one end away from the inner wall of the rotating portion 300 . The magnetic member 312 provides a magnetic field for the rotating part 300 .

Referring to FIGS. 1 and 2 , the central rod 400 includes a central rotating shaft 410 and a push rod 420 . The central rotating shaft 410 is arranged above the push rod 420, and the ends of the central rotating shaft 410 and the push rod 420 close to each other are respectively provided with a connecting ring 401, and the two connecting rings 401 are sleeved with each other. The push rod 420 is connected by the connecting ring 401, so that the rotating part 300 and the central rotating shaft 410 can be inclined with the flow of the fluid, so that the rotating part 300 can follow the flow of the fluid, so that the energy collection efficiency is higher, and the connection ring 401 is used to avoid direct connection. The piston 421 is driven by the straight rod, which reduces the damage probability of the central rod 400 and improves the service life of the underwater generator.

Referring to FIGS. 1 and 2 , the central rotating shaft 410 passes through the rotating part 300 , and four windings are fixedly connected in the central rotating shaft 410 , and the positions of the four windings correspond to the positions of the four independent layers 310 respectively, and the four windings are along the center The length direction of the rotating shaft 410 is equidistantly arranged. When the independent layer 310 rotates, the winding moves in the magnetic field to cut the magnetic field lines, and an induced current is generated in the winding and transmitted to the processing device 200 through the wire. The outer wall of the central rotating shaft 410 is provided with a protective layer, and the protective layer plays the role of preventing leakage and oxidation of the windings in the central rotating shaft 410, ensuring the long-term use of the underwater generator in the water and greatly reducing the energy loss.

Referring to FIGS. 2 and 3 , a piston 421 is fixedly connected to one end of the push rod 420 away from the rotating part 300 , the piston 421 is provided with a communication channel, and the communication channel is fixedly connected with a one-way valve 510 , and the flow direction of the one-way valve 510 is from top to bottom. The lower end of the rotating part 300 is provided with a pressurized water chamber 500 . The top wall of the pressurized water chamber 500 is provided with a through hole, the inner diameter of the through hole is larger than the diameter of the push rod 420 , and the water outlet is arranged in the center of the bottom wall of the pressurized water chamber 500 . A water delivery pipe 520 is connected to the bottom end of the pressurized water chamber 500 , and the water delivery pipe 520 communicates with the pressurized water chamber 500 . When the rotating part 300 is moved upwards by the impact of the seawater flow, the piston 421 is pulled upwards, at this time the one-way valve 510 is opened, and the seawater flows in from the through hole; when the rotating part 300 is moved downwards by the flow of seawater, the piston 421 is moved The downward movement is pushed, and the one-way valve 510 is closed at this time, and the seawater flows out from the water outlet and flows into the power generation device 100 .

4, the power generation device 100 includes a power generation chamber 110, an impeller 120 is arranged in the power generation chamber 110, the water outlet of the water delivery pipe 520 is arranged at the upper end of the power generation chamber 110, and the water outlet of the water delivery pipe 520 is eccentrically arranged on one side of the impeller 120, When the seawater flows into the power generation chamber 110 from the water delivery pipe 520, the seawater drives the impeller 120 to rotate, and the impeller 120 rotates to make the power generation device 100 generate electricity, which flows to the processing device 200 through wires. The power generated by the rotation of the independent layer 310 also flows into the processing device 200 together with the power generated by the power generating device 100 . The electric power is processed by the processing device 200 and then output to an electrical appliance or an energy storage device to utilize the electric power.

The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or variations without departing from the spirit of the present invention. Alternatives, these equivalent modifications or substitutions are all included within the scope defined by the claims of the present application.

Claims (9)

1. An underwater generator, characterized in that: comprising a rotating part (300) and a central rod (400), the rotating part (300) is sleeved in the central rod (400), and the rotating part (300) Several magnetic pieces (312) are fixedly connected to the inner wall of the central rod (400), the end of the central rod (400) close to the rotating part (300) is provided with windings, and the outer wall of the rotating part (300) is provided with several blades (311), A plurality of the blades (311) are evenly distributed on the outer wall of the rotating part (300), the blades (311) extend in a direction away from the central rod (400), and the central rod (400) is away from the rotating part (300). One end is connected with a piston (421), a pressurized water chamber (500) is provided below the rotating part (300), and the piston (421) is provided in the pressurized water chamber (500) and inside the pressurized water chamber (500). slip. 2. An underwater generator according to claim 1, characterized in that: the blade (311) is in an "S" shape. 3. An underwater generator according to claim 1, characterized in that: the rotating part (300) comprises several independent layers (310), and adjacent independent layers (310) are rotatably connected , a number of the blades (311) are arranged on the outer wall of the independent layer (310) and are distributed equidistantly around the circumference of the central rod (400). 4. An underwater generator according to claim 3, characterized in that: the number of the windings corresponds to the number of independent layers (310), and the windings are arranged on the inner wall of the central shaft (410), so The outer wall of the central rotating shaft (410) is provided with a protective layer. 5. An underwater generator according to claim 1, characterized in that: the rotating part (300) is configured in a spherical shape. 6. An underwater generator according to claim 1, characterized in that: the buoyancy of the rotating part (300) in water is at least equal to the overall gravity of the rotating part (300), and the central rod (400) It includes a central rotating shaft (410) and a push rod (420), and a connecting ring (401) is fixedly connected to the ends of the rotating shaft and the push rod (420) close to each other, and the two connecting rings (401) are sleeved with each other. 7. The underwater generator according to claim 1, wherein a check valve (510) is provided on the piston (421), and the flow direction of the check valve (510) is from above Down to the bottom, the lower end of the pressurized water chamber (500) is provided with a water outlet. 8. An underwater power generation system, characterized in that: comprising the underwater generator according to any one of claims 1 to 7, wherein the pressurized water chamber (500) of the underwater generator is connected with a water delivery pipe ( 520), the water delivery pipe (520) is communicated with the pressurized water chamber (500), the end of the water delivery pipe (520) away from the underwater generator is provided with a power generating device (100), and the winding of the underwater generator is provided with a power generating device (100). And the power generating device (100) is electrically connected to the processing device (200), and the processing device (200) outputs electric power. 9. An underwater power generation system according to claim 8, characterized in that: the power generation device (100) comprises a power generation chamber (110) and an impeller (120), and the impeller (120) is arranged in the power generation chamber (120). 110), the water delivery pipe (520) is arranged above the power generation chamber (110), the water delivery pipe (520) is eccentrically arranged on one side of the impeller (120), and the impeller (120) rotates to generate power transmission to the processing unit (200).

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