阅读说明：本技术 一种涡激振动水流能发电装置 (Vortex-induced vibration water flow energy power generation device ) 是由 韩晓双 卢炎 周波 于 2021-09-30 设计创作，主要内容包括：一种涡激振动水流能发电装置,属于可再生能源技术领域。这种涡激振动水流能发电装置包括海底基座、支撑架、能量捕获传递装置和发电装置。整个装置通过海底基座底部的钩爪固定在水流流域内,俘获来流中的水流能将其转化为可利用的电能。该装置基于流体力学中经典的涡激振动现象为原理,将水流能转化为圆柱振子的动能,并通过连接装置带动电磁发电机发电,可稳定俘获低速流域内的水流能。另外,这种涡激振动水流能发电装置采用对称式设计可一次带动两台发电机,提高发电效率,且整体结构简单,维护管理便捷,不影响生态环境,符合清洁新能源的标准。(A vortex-induced vibration water flow energy power generation device belongs to the technical field of renewable energy sources. The vortex-induced vibration water flow energy power generation device comprises a seabed base, a support frame, an energy capturing and transmitting device and a power generation device. The whole device is fixed in a water flow field through the hook claw at the bottom of the seabed base, and water flow energy in incoming flow is captured and converted into usable electric energy. The device is based on the classical vortex-induced vibration phenomenon in hydrodynamics as the principle, converts water flow energy into kinetic energy of a cylindrical vibrator, and drives an electromagnetic generator to generate electricity through a connecting device, so that the water flow energy in a low-speed basin can be stably captured. In addition, the vortex-induced vibration water flow energy power generation device adopts a symmetrical design to drive two generators at a time, so that the power generation efficiency is improved, the whole structure is simple, the maintenance and the management are convenient, the ecological environment is not influenced, and the standard of clean new energy is met.)

1. A vortex-induced vibration water flow energy power generation device comprises a seabed base (1) and a support frame (5), and is characterized by further comprising an energy capture and transfer device and a power generation device, wherein the power generation device comprises two electromagnetic generators (9) arranged inside a coated shell (12), and the coated shell (12) is fixed on the seabed base (1) through the support frame (5);

the energy capturing and transferring device comprises two upright posts (3), vibrators (4), a first connecting rod (8), a second connecting rod (6) and two flywheels (10), wherein the two upright posts (3) are arranged at the front end of a seabed base (1), two ends of a cylindrical vibrator (4) are respectively connected with the two upright posts (3) by adopting a structure which slides up and down along the upright posts (3), one end of the first connecting rod (8) is fixed with two ends of the vibrators (4), the other end of the first connecting rod is rotatably connected with one end of the second connecting rod (6), the two flywheels (10) are fixed between two electromagnetic generators (9), the flywheels (10) adopt a structure which is formed by connecting two wheel sheets (10 a) which are wide at the top and narrow at the bottom through a coated shell (11) and are fixedly connected with the wheel sheets (10 a) at the inner sides of the two flywheels (10), the wheel sheet (10 a) on the outer side of the flywheel (10) is connected with an electromagnetic rotor of the electromagnetic generator (9) through a connecting hole and a rotor connecting rod (9 a).

2. The vortex induced vibration water current energy power generation device according to claim 1, wherein: stand (3) adopt hollow cylinder structure, the inside of stand (3) sets up vertical guide rail (3 a), set up bar groove (3 b) on the column wall, set up limiting plate (3 c) on the inner wall of bar groove (3 b) department, oscillator connecting rod (4 a) of oscillator (4) tip pass bar groove (3 b) in proper order, but limiting plate (3 c) link joint is at movable slider (3 d) on vertical guide rail (15), oscillator connecting rod (4 a) fixed connection at head rod (8) and oscillator (4) both ends.

3. The vortex induced vibration water current energy power generation device according to claim 1, wherein: the utility model discloses a vibrator, including oscillator (4) and first connecting rod, first connecting rod (8) include two L type poles (8 a), horizontal pole (8 b) and horizon bar (8 c), the lower extreme of second connecting rod (6) is connected in the rotation of the one end of horizon bar (8 c), the middle part of horizontal pole (8 b) is connected to the other end, the upper end of two L type poles (8 a) of connection of the both ends symmetry of horizontal pole (8 c), the lower tip of two L type poles (8 a) is fixed respectively on oscillator connecting rod (4 a) at oscillator (4) both ends.

4. The vortex induced vibration water current energy power generation device according to claim 1, wherein: the flywheel (10) is fixed between the two electromagnetic generators (9) through a flywheel fixing rod (7), one end of the flywheel fixing rod (7) is fixed on the outer side of the wheel shaft (10 b), the other end of the flywheel fixing rod is fixed on a U-shaped groove formed in a shell plate at the rear part of the coated shell (11), and the wheel piece (10 a) is of a pear-shaped structure with the upper part wide and the lower part narrow.

5. The vortex induced vibration water current energy power generation device according to claim 1, wherein: the bottom of the seabed base (1) is provided with 4 fixed hooks (2), the two electromagnetic generators (9) are symmetrically arranged, and the two flywheels (10) are symmetrically arranged.

Technical Field

The invention relates to a vortex-induced vibration water flow energy power generation device, and belongs to the field of clean new energy development.

Background

In recent years, with the gradual depletion of fossil energy, the development of new environmentally friendly renewable energy sources is urgent. The trend can stand out from a great number of green sustainable energy sources by the characteristics of sustainability, high energy density, rich content and the like, and becomes a hot problem for research in the field of energy sources at present. Compared with wind energy, the acquisition of water flow energy is more stable and does not deal with the harmonic problem. At present, China has a coastline of over 5000 kilometers and a plurality of rivers and lakes, which means that the China has quite abundant water flow energy reserves. Therefore, the method has wide research prospect.

At present, the development and utilization of water flow energy of mainstream are mainly realized by a paddle type water flow energy generator, namely, fluid kinetic energy of water flow is converted into mechanical energy through a water turbine device to drive an electromagnetic generator to generate electricity, so that the process of converting the water flow energy into electric energy is completed. The integral device mainly depends on the impeller to capture water flow energy, but the water flow is required to provide enough power for the impeller to stably rotate, namely, the requirement on the flow rate of the working environment is strict. Usually, the whole device can be stably operated only in a watershed with the water flow velocity higher than 1 m/s. This results in the inability to effectively capture the energy of the water flowing in the low velocity flow field, which is unnecessarily wasted. Therefore, some scientists introduce vortex-induced vibration into tidal current energy power generation devices to manufacture low-cost tidal current energy power generation devices suitable for low flow velocity, so that energy can be better collected and utilized. Vortex-induced vibration is a phenomenon widely existing in a natural flow domain. When fluid flows through the regular or irregular solid substances, two rows of alternately falling vortexes are formed behind the regular or irregular solid substances, and alternate fluid force is applied to the surface of the solid substances to force the solid substances to do periodic reciprocating motion. Past research directions have often focused on how to suppress this phenomenon to prevent vibration fatigue damage to marine risers, towers in high wind fields, and other engineered structures. However, the vortex-induced vibration energy harvesting device also contains abundant energy, and some researchers develop various vortex-induced vibration energy harvesting devices based on the energy, wherein the vortex-induced vibration energy harvesting devices are mainly divided into piezoelectric type devices and electromagnetic type devices, and compared with the electromagnetic type devices, the vortex-induced vibration energy harvesting device has higher research value because the electromagnetic type devices can capture and collect water flow energy in a large scale. However, the currently developed device mostly uses a gear mechanism as a conversion mechanism, and has high requirements on part precision and low energy conversion rate; or use of reciprocating generators as power generation equipment, which causes difficulties in the subsequent collection and use of electrical energy.

Disclosure of Invention

The invention aims to provide a vortex-induced vibration water flow energy power generation device aiming at the technical analysis and problems. The power generation device can drive two power generators simultaneously, improves the energy obtaining efficiency of the vortex-induced vibration power generation device, has simple structure, is easy to maintain, reduces the manufacturing cost, improves the power generation quality, can more effectively capture the water flow energy in a low-speed basin, and basically has no influence on the ecological environment.

The technical scheme adopted by the invention is as follows: a vortex-induced vibration water flow energy power generation device comprises a seabed base, a support frame, an energy capturing and transmitting device and a power generation device, wherein the power generation device comprises two electromagnetic generators arranged in a coated shell, and the coated shell is fixed on the seabed base through the support frame;

the energy capturing and transferring device comprises two stand columns, vibrators, a first connecting rod, a second connecting rod and two flywheels, wherein the two stand columns are arranged at the front end of a seabed base, the two ends of each cylindrical vibrator are connected with the two stand columns by adopting a structure which slides up and down along the stand columns respectively, one end of the first connecting rod is fixed with the two ends of each vibrator, the other end of each first connecting rod is connected with one end of the corresponding second connecting rod in a rotating mode, the two flywheels are fixed between the two electromagnetic generators, the flywheels are of a structure which is wide at the top and narrow at the bottom and are connected through wheel shafts, the other end of each second connecting rod penetrates through the bottom of the cladding type shell and is fixedly connected with the wheel sheets on the inner sides of the two flywheels, and the wheel sheets on the outer sides of the flywheels are connected with electromagnetic rotors of the electromagnetic generators through connecting holes and rotor connecting rods.

The stand adopts hollow cylinder structure, and the inside of stand sets up vertical guide rail, sets up the bar groove on the column wall, sets up the limiting plate on the inner wall of bar groove department, and the oscillator connecting rod of oscillator tip passes bar groove, limiting plate connection cover portable slider on vertical guide rail in proper order, the oscillator connecting rod fixed connection at head rod and oscillator both ends.

The first connecting rod comprises two L-shaped rods, a cross rod and a horizontal rod, one end of the horizontal rod is rotatably connected with the lower end of the second connecting rod, the other end of the horizontal rod is connected with the middle part of the cross rod, the two ends of the cross rod are symmetrically connected with the upper end parts of the two L-shaped rods, and the lower end parts of the two L-shaped rods are respectively fixed on the vibrator connecting rods at the two ends of the vibrator.

The flywheel is fixed between the two electromagnetic generators through a flywheel fixing rod, one end of the flywheel fixing rod is fixed on the outer side of the wheel shaft, the other end of the flywheel fixing rod is fixed on a U-shaped groove formed in a shell plate at the rear part of the coated shell, and the wheel piece is of a pear-shaped structure with a wide upper part and a narrow lower part.

The bottom of the seabed base is provided with a fixed claw, the two electromagnetic generators are symmetrically arranged, and the two flywheels are symmetrically arranged.

The whole set of device of the vortex-induced vibration water flow energy power generation device is divided into an underwater part and an overwater part. The underwater part comprises a seabed base, a support frame and an energy capture and transfer device. Four claw-type structures extend out of four corners of the bottom of the seabed base and are fixed on the seabed or a riverbed to play a role in fixing. Two hollow upright posts are fixed at the front end of the seabed base, and the cylindrical vibrator is fixed between the two upright posts through the vibrator connecting rod and constrained to do reciprocating motion perpendicular to the incoming flow direction. The water part is a power generation device. The coating type shell is fixed on the seabed base through a support frame and extends out of the water surface. Two electromagnetic generator parallel placement are in the inside of cladding formula shell, and two flywheel dead lever one end are fixed on cladding formula shell, and the other end is fixed in two flywheels between two electromagnetic generator respectively, and two flywheels link to each other with the connecting rod that stretches out of the both sides of cylindrical oscillator is fixed, rotate with electromagnetic generator's electromagnetic rotor and be connected to the realization turns into the reciprocating motion of oscillator electromagnetic rotor unidirectional rotary motion. Two electromagnetic generators and two flywheels are arranged in the cladding type shell, so that the influence of external factors on the internal structure can be prevented.

By adopting the technical scheme, the whole device is arranged perpendicular to the flow direction of water flow, the water flow flows through the cylindrical vibrator to form alternately falling vortexes at the rear part of the cylindrical vibrator, and the cylindrical vibrator is forced to vibrate up and down in a reciprocating manner. The water flow energy conversion system can be connected with an electromagnetic generator on each of two sides of two flywheels to convert tidal current energy into electric energy. When water flows through the power generation device, the cylindrical vibrator does reciprocating motion under the action of lift force, the connecting rod drives the flywheel to rotate in a single direction, and the electromagnetic rotor in the generator is driven to rotate, so that tidal current energy is converted into electric energy.

The invention has the beneficial effects that: the vortex-induced vibration water flow energy power generation device comprises a seabed base, a support frame, an energy capturing and transmitting device and a power generation device. The device is constrained between two hollow cylinders which are perpendicular to a seabed base through cylindrical vibrators, two sides of the device are connected with the inner sides of flywheels of pear-shaped structures through connecting rods, and the flywheels can rotate around fixed rotating shafts. The outer side of the flywheel is connected with the electromagnetic rotor to drive the electromagnetic generators arranged in parallel at two sides. The cylindrical vibrator can perform stable reciprocating motion under the condition of low incoming flow speed based on a vortex-induced vibration principle, and drives the flywheel to rotate in a single direction through the connecting rod-flywheel mechanism to drive the electromagnetic generator to generate electricity; the left side and the right side can be connected with an electromagnetic generator, so that the energy conversion efficiency is improved to a great extent; cylindrical oscillator power device based on vortex-induced vibration has also guaranteed that whole set of system can be in low-velocity of flow basin steady operation, and then makes this power generation facility can accomplish the recycle of low-velocity of flow basin interior water energy with higher efficiency, compares in this device overall structure of other oscillator power generation facility more clear succinct, and subsequent maintenance management underwater part of being convenient for is in stability, can not produce the influence to ecological environment on every side when continuously collecting the energy. The flywheel adopts the design of the pear-shaped structure with wide top and narrow bottom, and the heavier end plays the role of energy storage, collects redundant kinetic energy, and helps the link mechanism to cross the dead point position by means of inertia, and the flywheel and the energy transfer system supplement each other, thereby ensuring the high-efficiency and stable energy transfer of the whole system.

Drawings

Fig. 1 is a perspective view of a vortex-induced vibration water flow energy power generation device.

Fig. 2 is a front view of a vortex induced vibration water current energy power generation device.

Fig. 3 is a left side view of a vortex induced vibration water current energy power generation device.

Fig. 4 is a plan view of a vortex induced vibration water current energy power generation device.

Fig. 5 is a rear view of a vortex induced vibration water current energy power generation device.

Fig. 6 is a partially enlarged view of B in fig. 1.

Fig. 7 is a cross-sectional view a-a of the column of fig. 1.

Fig. 8 is a cross-sectional view B-B of the column of fig. 1.

Fig. 9 is a cross-sectional view of the column of fig. 1 taken along line C-C.

Fig. 10 is a cross-sectional view of the column of fig. 1 taken along line D-D.

In the figure: 1. the device comprises a seabed base, 2, a fixed claw, 3, a stand column, 3a, a vertical guide rail, 3b, a strip-shaped groove, 3c, a limiting plate, 3d, a movable sliding block, 4, a vibrator, 4a, a vibrator connecting rod, 5, a supporting frame, 6, a second connecting rod, 7, a flywheel fixing rod, 8, a first connecting rod, 8a, an L-shaped rod, 8b, a cross rod, 8c, a horizontal rod, 9, an electromagnetic generator, 9a, a rotor connecting rod, 10, a flywheel, 10a, a wheel piece, 10b, a wheel shaft, 11 and a cladding type shell.

Detailed Description

The technical solution of the present invention is further explained by the specific embodiments with reference to the attached drawings.

Fig. 1 to 4 show a structural view of a vortex induced vibration water current energy power generation apparatus. In the figure, the vortex-induced vibration water flow energy power generation device comprises a seabed base 1, a support frame 5, an energy capturing and transmitting device and a power generation device, wherein the power generation device comprises two electromagnetic generators 9 arranged inside a coated shell 12, and the coated shell 12 is fixed on the seabed base 1 through the support frame 5;

the energy capturing and transferring device comprises two upright posts 3 and a vibrator 4, the electromagnetic generator comprises a first connecting rod 8, a second connecting rod 6 and two flywheels 10, wherein the two upright columns 3 are arranged at the front end of the seabed base 1, two ends of a cylindrical vibrator 4 are connected with the two upright columns 3 respectively in a structure of sliding up and down along the upright columns 3, one end of the first connecting rod 8 is fixed with two ends of the vibrator 4, the other end of the first connecting rod is rotatably connected with one end of the second connecting rod 6, the two flywheels 10 are fixed between the two electromagnetic generators 9, the flywheels 10 are in a structure that two wheel sheets 10a with wide top and narrow bottom are connected through wheel shafts 10b, the other end of the second connecting rod 6 penetrates through the bottom of a cladding type shell 11 and is fixedly connected with wheel sheets 10a (two wheel sheets opposite to the two flywheels 10) on the inner sides of the two flywheels 10, and a wheel sheet 10a (a wheel sheet close to one side of the electromagnetic generator) on the outer side of the flywheels 10 is connected with an electromagnetic rotor connecting rod 9a of the electromagnetic generator 9 through a connecting hole (arranged on the wheel sheet 10 a).

Stand 3 adopts hollow cylinder structure, stand 3's inside sets up vertical guide rail 3a, set up bar groove 3b on the column wall, set up limiting plate 3c on the inner wall of bar groove 3b department, bar groove 3b is passed in proper order to the oscillator connecting rod 4a of 4 tip of oscillator, the portable slider 3d of limiting plate 3c connecting sleeve on vertical guide rail 15, the oscillator connecting rod 4a fixed connection at head rod 8 and 4 both ends of oscillator, oscillator connecting rod 4a can be in the bar hole that limiting plate 3c middle part was seted up, move down.

The first connecting rod 8 comprises two L-shaped rods 8a, a cross rod 8b and a horizontal rod 8c, one end of the horizontal rod 8c is rotatably connected with the lower end of the second connecting rod 6, the other end of the horizontal rod is connected with the middle of the cross rod 8b, the two ends of the cross rod 8c are symmetrically connected with the upper end parts of the two L-shaped rods 8a, and the lower end parts of the two L-shaped rods 8a are respectively fixed on the vibrator connecting rods 4a at the two ends of the vibrator 4.

The flywheel 10 is fixed between the two electromagnetic generators 9 through the flywheel fixing rod 7, one end of the flywheel fixing rod 7 is fixed on the outer side of the wheel shaft 10b, the other end of the flywheel fixing rod 7 is fixed on a U-shaped groove formed in a shell plate at the rear part of the coated shell 11, the wheel piece 10a is of a pear-shaped structure with the upper part being wide and the lower part being narrow, the flywheel fixing rod 7 is fixedly connected with the outer wall of the wheel shaft 10b, and when the wheel piece 10a rotates around the wheel shaft 10b, the flywheel fixing rod 7 is fixed.

The bottom of the seabed base 1 is provided with 4 fixed hooks 2, two electromagnetic generators 9 are symmetrically arranged, and two flywheels 10 are symmetrically arranged.

The working principle of the scheme is as follows: the vortex-induced vibration water flow energy power generation device is fixed at the sea/river bottom through the fixing hook claws 2, the whole device is vertically placed along the incoming flow direction, water flows through the cylindrical vibrator 4 to form vortex which falls off alternately at the downstream of the vibrator, the vibrator is forced to perform stable reciprocating motion in the vertical direction after the resonant frequency is reached, the vibrator 4 drives the flywheel 10 on the upper portion through the connecting rod, the reciprocating motion from top to bottom is converted into unidirectional rotation of the flywheel, the outer sides of the two flywheels 10 are connected with an electromagnetic rotor of a generator, and the electromagnetic generator is driven to generate electricity. The conversion process of water flow energy-mechanical-electric energy is completed. One end of the flywheel fixing rod 7 is fixed on a groove formed in the wall of the coated shell 11, and the other end of the flywheel fixing rod is fixedly connected with the upper end of the outer wall of the bearing of the flywheel 10, so that the two flywheels 10 are fixed between the two generators, and the flywheel rotates around the bearing, thereby driving the generators to generate electricity.