CN106640509B

CN106640509B - Buoyancy tank power generation unit and chain type sea wave power generation device

Info

Publication number: CN106640509B
Application number: CN201710108464.8A
Authority: CN
Inventors: 马立志; 黄永军
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-02-27
Filing date: 2017-02-27
Publication date: 2022-11-29
Anticipated expiration: 2037-02-27
Also published as: CN106640509A

Abstract

The invention discloses a buoyancy tank power generation unit and a chain type sea wave power generation device, which comprise a buoyancy tank and a connecting frame fixedly connected with the buoyancy tank; the buoyancy tank is provided with a driving shaft, a transmission device, an energy storage device and an energy conversion device; the driving shaft penetrates through and is rotatably connected with the buoyancy tank, the transmission device, the energy storage device and the energy conversion device are arranged in the buoyancy tank, and the buoyancy tank is of a closed structure; the connecting frame is provided with a connecting hole matched with the size of the driving shaft; the buoyancy tank comprises a first surface and a second surface which are opposite and parallel, and the axial leads of the driving shaft and the connecting hole are parallel to the first surface; the axes of the driving shaft, the connecting hole, the first surface and the second surface are on the same plane. The buoyancy tank power generation unit and the chain type sea wave power generation device are simple in structure, strong in durability, and high in reliability and stability.

Description

Buoyancy tank power generation unit and chain type sea wave power generation device

Technical Field

The invention relates to the technical field of power generation, in particular to a buoyancy tank power generation unit and a chain type sea wave power generation device.

Background

One of the fossil energy sources is a non-renewable energy source. With the exploitation and use of fossil energy, the fossil energy is becoming exhausted. Meanwhile, with the transitional use of fossil energy, the earth environment is worsened day by day, the greenhouse effect and the haze problem are serious day by day, and the development of new energy is imminent.

Compared with wind energy and solar energy technologies, the wave energy power generation technology is relatively lagged behind. However, sea waves can have their unique advantages: the wave energy density is high and is 4 to 30 times of that of wind energy; compared with solar energy, wave energy is not affected by weather.

The wave energy power generation power supply is a power supply made by using wave power generation, and has the advantages that: the wave energy is widely released and has huge reserves; the sea wave power generation device is less influenced by sea conditions and climate. The power generation by utilizing the wave energy has very important significance.

At present, the wave energy power generation still has a plurality of problems, such as expensive manufacturing cost, reliability and stability of the device.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a buoyancy tank power generation unit and a chain type wave power generation device, which are used for solving the problems in the prior art.

In order to solve the above problems, the present invention provides: a buoyancy tank power generation unit comprises a buoyancy tank and a connecting frame fixedly connected with the buoyancy tank;

the buoyancy tank is provided with a driving shaft driven by wave energy, a transmission device, an energy storage device and an energy conversion device for converting energy into electric energy;

the driving shaft penetrates through and is rotatably connected with the buoyancy tank, the transmission device, the energy storage device and the energy conversion device are arranged in the buoyancy tank, and the buoyancy tank is of a closed structure;

the connecting frame is provided with a connecting hole matched with the driving shaft in size;

the buoyancy tank comprises a first surface and a second surface which are opposite and parallel, and the axial leads of the driving shaft and the connecting hole are parallel to the first surface;

the cross section of the first surface is concave and round, and the cross section of the second surface is convex and round;

the axial leads of the driving shaft, the connecting hole, the first surface and the second surface are on the same plane.

As a further improvement of the above technical solution, the transmission device of the buoyancy tank power generation unit comprises a transmission gear and a gear set driven by the transmission gear, wherein the transmission gear is fixedly connected with the driving shaft;

the energy storage device is a flywheel;

the energy conversion device is a generator.

As a further improvement of the above technical solution, in the buoyancy tank power generation unit, the transmission device includes a transmission arm and a hydraulic cylinder driven by the transmission arm, wherein the transmission arm is fixedly connected with the driving shaft;

the energy storage device is a hydraulic energy storage device;

the energy conversion device includes a hydraulic motor and a generator driven by the hydraulic motor.

As a further improvement of the above technical solution, in the buoyancy tank power generation unit, a control tank is further arranged inside the buoyancy tank;

and the control box is internally provided with a rectifier electrically connected with the energy conversion device and a PLC for monitoring the working state of the energy conversion device.

As a further improvement of the above technical solution, in the buoyancy tank power generation unit, the density of the buoyancy tank is less than the density of water.

As a further improvement of the above technical solution, the buoyancy tank power generation unit is provided with a stopper for limiting a rotation angle of the buoyancy tank power generation unit.

As a further improvement of the above technical solution, in the buoyancy tank power generation unit, a cushion pad corresponding to the stopper is arranged on the buoyancy tank.

As a further improvement of the above technical solution, the floating box power generation unit has an even number of the stoppers and the cushions, and the stoppers and the cushions are symmetrically arranged on the floating box.

As a further improvement of the above technical solution, the buoyancy tank power generation unit is provided with a hatch cover;

the hatch cover is detachably connected with the buoyancy tank.

The present invention also provides: a chained wave power plant comprising the pontoon power generating unit of any one of the above;

the buoyancy tank power generation units are sequentially connected, and the connecting hole of one buoyancy tank power generation unit is relatively and statically connected with the driving shaft of another adjacent buoyancy tank power generation unit, so that a chained buoyancy tank power generation set is formed;

a bow positioning anchor chain cabin and a stern positioning anchor chain cabin are respectively arranged at two ends of the chain type buoyancy tank power generation set;

the density of the bow positioning chain locker and the density of the stern positioning chain locker are both smaller than the density of water, and anchor chains are arranged on the bow positioning chain locker and the stern positioning chain locker, and anchors are arranged on the anchor chains.

The invention has the beneficial effects that: the invention provides a buoyancy tank power generation unit and a chain type sea wave power generation device, wherein the chain type sea wave power generation device is composed of buoyancy tank power generation units.

The buoyancy tank power generation unit and the chain type sea wave power generation device are simple in structure, strong in durability, and high in reliability and stability. Meanwhile, the buoyancy tank power generation unit and the chain type wave power generation device can also form a large-scale wave power station.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below. It is appreciated that the following drawings depict only some embodiments of the invention and are therefore not to be considered limiting of its scope, for those skilled in the art will be able to derive additional related drawings therefrom without the benefit of the inventive faculty.

Fig. 1 is a schematic view of a buoyancy tank power generation unit according to embodiment 1 of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is a schematic view of two buoyancy tank power generation units relatively rotating by a first angle in embodiment 1 of the present invention;

FIG. 4 is a schematic diagram of two buoyancy tank power generation units relatively rotating by a second angle in embodiment 1 of the present invention;

FIG. 5 is a schematic view of a drive shaft according to embodiment 1 of the present invention;

fig. 6 is a schematic view of a chain type wave power generation device according to embodiment 1 of the present invention;

fig. 7 is a schematic view of a chain type wave power generation device in an operating state at sea according to embodiment 1 of the present invention;

FIG. 8 is a schematic view of a buoyancy tank power generation unit according to embodiment 2 of the present invention;

FIG. 9 is a top view of FIG. 8;

FIG. 10 is a schematic view of two buoyancy tank power generating units relatively rotating by a third angle in embodiment 2 of the present invention;

FIG. 11 is a schematic illustration of the position of the connecting arm and hydraulic cylinder of FIG. 10;

FIG. 12 is a schematic view of two buoyancy tank power generating units relatively rotated by a fourth angle in embodiment 2 of the present invention;

FIG. 13 is a schematic illustration of the position of the connecting arm and hydraulic cylinder of FIG. 12;

FIG. 14 is a schematic view of two buoyancy tank power generation units relatively rotated by a fifth angle in embodiment 2 of the present invention;

FIG. 15 is a schematic illustration of the position of the connecting arm and hydraulic cylinder of FIG. 14;

fig. 16 is a schematic diagram of a hydraulic system in embodiment 2 of the present invention.

Description of the main element symbols:

100-buoyancy tank power generation units; 200-positioning the chain locker; 300-stern positioning chain locker; 400-anchor chain; 500-anchor; 1000-buoyancy tanks; 1100-a drive shaft; 1110-left axis; 1120-medial axis; 1130-right axis; 1200-a transmission; 1211 — a drive gear; 1212-a driving arm; 1213-hydraulic cylinders; 1214-hydraulic rods; 1300-an energy storage device; 1311-hydraulic accumulator; 1400-energy conversion device; 1411-hydraulic motor; 1412-a generator; 1511-first side; 1512-a second face; 1600-control box; 1700-hatch cover; 1811-a stop; 1812-a cushion pad; 1911-hydraulic oil tank; 1912-single-acting solenoid valve; 1913-one-way valve; 1914-overflow valve; 1915-filter; 1916-air filter; 1917-adjustable throttle valve; 2000-connecting frame; 2100-attachment hole.

Detailed Description

Various embodiments of the present invention will be described more fully hereinafter. The invention is capable of various embodiments and of modifications and variations therein. However, it should be understood that: there is no intention to limit various embodiments of the invention to the specific embodiments disclosed herein, but on the contrary, the intention is to cover all modifications, equivalents, and/or alternatives falling within the spirit and scope of various embodiments of the invention.

Hereinafter, the terms "includes" or "may include" used in various embodiments of the present invention indicate the presence of the disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of the present invention, the terms "comprises," "comprising," "includes," "including," "has," "having" and their derivatives are intended to mean that the specified features, numbers, steps, operations, elements, components, or combinations of the foregoing, are only meant to indicate that a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as first excluding the existence of, or adding to the possibility of, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.

In various embodiments of the invention, the expression "or" at least one of a or/and B "includes any or all combinations of the words listed simultaneously. For example, the expression "a or B" or "at least one of a or/and B" may include a, may include B, or may include both a and B.

Expressions (such as "first", "second", and the like) used in various embodiments of the present invention may modify various constituent elements in various embodiments, but may not limit the respective constituent elements. For example, the above description does not limit the order and/or importance of the elements described. The above description is only intended to distinguish one element from another. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present invention.

It should be noted that: in the present invention, unless otherwise explicitly stated or defined, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; there may be communication between the interiors of the two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, it should be understood by those skilled in the art that the terms indicating an orientation or a positional relationship herein are based on the orientations and the positional relationships shown in the drawings and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation and operate, and thus, should not be construed as limiting the present invention.

The terminology used in the various embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the invention. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present invention belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments of the present invention.

Example 1

Referring to fig. 1 and 2, in the present embodiment, a buoyancy tank power generation unit 100 is provided, which includes a buoyancy tank 1000, and the buoyancy tank 1000 is provided with a driving shaft 1100 that rotates under the driving of sea wave energy and generates energy, a transmission device 1200 for transmitting energy, an energy storage device 1300 for storing energy, and an energy conversion device 1400 for converting energy into electric energy. The driving shaft 1100 penetrates through and is rotatably connected to the buoyancy tank 1000, and the transmission device 1200, the energy storage device 1300 and the energy conversion device 1400 are disposed inside the buoyancy tank 1000. The interior of the buoyancy tank 1000 is a closed structure. The density of the buoyancy tank 1000 is less than the density of water.

Specifically, in the present embodiment, the transmission device 1200 includes a transmission gear 1211 and a gear set driven by the transmission gear 1211, wherein the transmission gear 1211 is fixedly connected to the driving shaft 1100; energy storage device 1300 is a flywheel; the energy conversion device 1400 is a generator 1412.

A coupling frame 2000 is fixedly coupled to the buoyancy tank 1000, and a coupling hole 2100 having a size matched with that of the driving shaft 1100 is formed in the coupling frame 2000.

The buoyancy chamber 1000 includes a first surface 1511 and a second surface 1512 opposite and parallel to each other, and the axial axes of the driving shaft 1100 and the connection hole 2100 are parallel to the first surface 1511.

The first face 1511 is concavely rounded in cross-section and the second face 1512 is convexly rounded in cross-section. The axial lines of the drive shaft 1100, the coupling hole 2100, the first surface 1511, and the second surface 1512 are on the same plane.

As shown in fig. 3 and 4, two buoyancy tank power generating units 100 may be coupled to each other by the engagement of a coupling hole 2100 with a driving shaft 1100, wherein the coupling hole 2100 is coupled to the driving shaft 1100 relatively statically. Meanwhile, due to the structures of the first face 1511 and the second face 1512, the two buoyancy tank power generation units 100 can be rotated with each other without interference. When the two buoyancy tank power generation units 100 rotate relatively, the connected driving shaft 1100 rotates, the transmission gear 1211 fixed on the driving shaft 1100 drives the gear set, and the gear set drives the flywheel, so that the generator 1412 generates power. In this manner, more buoyancy tank power generation units 100 can be connected in sequence and used for power generation.

As shown in fig. 3 and 4, in order to prevent the structure of the buoyancy tank 1000 from being damaged due to an excessively large angle of relative rotation between the two, a stopper 1811 for limiting the rotation angle of the buoyancy tank power generation unit 100 may be provided on the buoyancy tank 1000. Meanwhile, the buoyancy tank 1000 is further provided with a cushion 1812 corresponding to the stopper 1811. The stoppers 1811 and the cushion pads 1812 are provided in an even number, and are symmetrically disposed on the buoyancy chamber 1000.

As shown in fig. 5, a schematic view of a drive shaft 1100 is shown. In view of the problem of seawater corrosion, the drive shaft 1100 is composed of three parts: the left shaft 1110, the middle shaft 1120 and the right shaft 1130, wherein the left shaft 1110 is detachably connected with the middle shaft 1120, and the middle shaft 1120 is detachably connected with the right shaft 1130. Specifically, the left shaft 1110 and the middle shaft 1120, and the middle shaft 1120 and the right shaft 1130 may be connected by bolts. The left shaft 1110 and the right shaft 1130 are coupled to the buoyancy tank 1000 by bearings and are sealed to prevent seawater from penetrating into the inside of the buoyancy tank 1000. The drive gear 1211 is fixedly connected to the central shaft 1120.

The gear set may be composed of a steering gear box and a speed-up gear box, and the steering gear box may adjust the forward and reverse rotation power of the driving shaft 1100 to a single steering power, and then increase the rotation speed to the required rotation speed of the generator 1412 by inputting the power to the speed-up gear box. The output shaft of the gear set is connected with a flywheel to drive a generator 1412 to generate electricity.

When the buoyancy tank power generation units 100 generate power, the frequency, phase angle and power of the power generated by each buoyancy tank power generation unit 100 are all uncontrollable, so a control box 1600 is further arranged inside the buoyancy tank 1000, and a rectifier electrically connected with the energy conversion device 1400 is arranged in the control box 1600. The alternating current generated by the generator 1412 in the buoyancy tank power generation unit 100 is rectified by the rectifier and then is merged into the power station direct current power grid.

The control box 1600 may further include a PLC for monitoring the operating state of the energy conversion device 1400, and may specifically monitor the generator 1412 and the state thereof. A temperature sensor, a water leakage detection switch, a water pump, etc. may be provided in the buoyancy tank 1000, and the PLC may be used to monitor or control these elements inside the buoyancy tank 1000. The PLC in each buoyancy tank power generation unit 100 can be connected in proper order through communication cable, finally inserts total control station, makes things convenient for the staff to monitor and control each buoyancy tank power generation unit 100.

To facilitate maintenance and replacement of the components inside the buoyancy tank 1000, a hatch 1700 may be provided on the buoyancy tank 1000, the hatch 1700 being detachably connected to the buoyancy tank 1000. The connection between the two is also sealed to prevent seawater from penetrating into the interior of the buoyancy tank 1000. Specifically, the two can be connected by a threaded connection. The hatch 1700 may also adopt the related technology on the existing ship, so that it may have the function of quick opening.

Referring to fig. 6 and 7, in the present embodiment, a chained wave power generation device is further provided, which includes a buoyancy tank power generation unit 100. The plurality of buoyancy generator units 100 are sequentially connected, and the coupling hole 2100 of one buoyancy generator unit 100 is coupled to the drive shaft 1100 of another adjacent buoyancy generator unit 100 in a stationary manner, thereby constituting a power generation set of the chain type buoyancy 1000. Two ends of the power generation set of the chain-type buoyancy tank 1000 are respectively provided with a bow positioning chain locker 200 and a stern positioning chain locker 300. The density of the fore positioning chain locker 200 and the density of the stern positioning chain locker 300 are both smaller than the density of water, the fore positioning chain locker and the stern positioning chain locker are both provided with an anchor chain 400, and the anchor chain 400 is provided with an anchor 500.

Referring to fig. 6 and 7, from left to right, the connection hole 2100 of the left buoyancy tank power generation unit 100 and the drive shaft 1100 of the adjacent right buoyancy tank power generation unit 100 may be relatively statically connected by a shaft key, and in this connection manner, they are combined into a long chain. Wherein, the chain type wave power generation device can be composed of a plurality of even hundreds of buoyancy tank power generation units 100.

As shown in fig. 7, when the chained wave power generator is placed on the sea, each buoyancy tank power generation unit 100 in the chained wave power generator fluctuates up and down under the action of wave buoyancy, and two adjacent buoyancy tank power generation units 100 rotate relatively.

As shown in fig. 7, two adjacent buoyancy tank power generation units 100 rotate relatively to drive the driving shaft 1100 in the right buoyancy tank power generation unit 100 to rotate, the transmission gear 1211 on the driving shaft 1100 acts on the gear set, the gear set drives the flywheel, and the flywheel drives the generator 1412 to generate power.

Example 2

Referring to fig. 8 and 9, in the present embodiment, a buoyancy tank power generation unit 100 is provided, which includes a buoyancy tank 1000, and the buoyancy tank 1000 is provided with a driving shaft 1100 which rotates under the driving of sea wave energy and generates energy, a transmission device 1200 for transmitting energy, an energy storage device 1300 for storing energy, and an energy conversion device 1400 for converting energy into electric energy. The driving shaft 1100 penetrates through and is rotatably connected to the buoyancy tank 1000, and the transmission device 1200, the energy storage device 1300 and the energy conversion device 1400 are disposed inside the buoyancy tank 1000. The interior of the buoyancy tank 1000 is of a closed construction.

Unlike embodiment 1, in the present embodiment, the transmission device 1200 includes a transmission arm 1212 and a hydraulic cylinder 1213 driven by the transmission arm 1212, wherein the transmission arm 1212 is fixedly connected to the drive shaft 1100; the energy storage device 1300 is a hydraulic accumulator 1311; the energy conversion device 1400 includes a hydraulic motor 1411 and an electric generator 1412 driven by the hydraulic motor 1411.

The coupling frame 2000 is fixedly coupled to the buoyancy tank 1000, and the coupling frame 2000 is provided with a coupling hole 2100 having a size matched with that of the driving shaft 1100.

The first face 1511 is concavely rounded in cross-section and the second face 1512 is convexly rounded in cross-section. The axial lines of the drive shaft 1100, the connection hole 2100, the first surface 1511, and the second surface 1512 are on the same plane.

As shown in fig. 10, 11, 12, 13, 14, and 15, two buoyancy tank power generating units 100 may be coupled to each other by the engagement of a coupling hole 2100 with a drive shaft 1100, wherein the coupling hole 2100 is coupled to the drive shaft 1100 at a relatively stationary state. When the left-hand pontoon power generating unit 100 is rotated upward relative to the right-hand pontoon power generating unit 100, the drive shaft 1100 acts on the hydraulic rod 1214 of the hydraulic cylinder 1213 via the connecting arm, and the lower cylinder of the hydraulic cylinder 1213 generates high-pressure hydraulic power while the upper cylinder of the hydraulic cylinder 1213 draws in low-pressure hydraulic oil due to the negative pressure. Conversely, when the left-side pontoon generator unit 100 is rotated downward relative to the right-side pontoon generator unit 100, the connecting arm pulls out the hydraulic rod 1214, the cylinder at the upper portion of the hydraulic cylinder 1213 generates high-pressure hydraulic power, and the cylinder at the lower portion of the hydraulic cylinder 1213 sucks in low-pressure hydraulic oil due to negative pressure. The hydraulic cylinder 1213 stores energy in the hydraulic accumulator 1311 during actuation.

When the left-side buoyancy tank power generation unit 100 rotates relative to the right-side buoyancy tank power generation unit 100, the driving shaft 1100 will act on the hydraulic rod 1214 of the hydraulic cylinder 1213 through the driving arm 1212, and the reciprocating motion of the hydraulic rod 1214 generates hydraulic energy.

As shown in fig. 16, in the present embodiment, the buoyancy tank power generation unit 100 is internally provided with: the hydraulic system comprises a transmission arm 1212 and a double-acting hydraulic cylinder 1213 as the transmission 1200, a hydraulic accumulator 1311 as the energy storage 1300, a hydraulic motor 1411 and a generator 1412 as the energy conversion device 1400, and the rest of the hydraulic system further comprises a control box 1600, a hydraulic oil tank 1911, a single-acting solenoid valve 1912, a check valve 1913, an overflow valve 1914, a filter 1915, an air filter 1916 and an adjustable throttle valve 1917. These elements constitute a hydraulic system whose principle: when the double acting hydraulic cylinder 1213 is acted upon by the hydraulic arm, the resulting high pressure hydraulic oil will pass through the check valve 1913 into the hydraulic accumulator 1311 and finally through the adjustable throttle valve 1917 to drive the hydraulic motor 1411, which drives the generator 1412 to generate electricity. Relief valve 1914 serves to maintain the pressure of hydraulic accumulator 1311 within a safe pressure range; the filter 1915 filters the hydraulic oil to keep the hydraulic oil clean; the control box 1600 is provided with a rectifier for converting the alternating current generated by the generator 1412 into direct current.

A PLC for monitoring the operating state of the energy conversion device 1400 is further disposed in the control box 1600, and the PLC may monitor or control other elements inside the floating box 1000. Specifically, the level of the tank may be monitored, the filter 1915 may be monitored, the hydraulic motor 1411 may be controlled, and the like.

Those skilled in the art will appreciate that the figures are merely schematic representations of one preferred implementation scenario and that the blocks or flow diagrams in the figures are not necessarily required to practice the present invention.

Those skilled in the art will appreciate that the modules in the devices in the implementation scenario may be distributed in the devices in the implementation scenario according to the description of the implementation scenario, or may be located in one or more devices different from the present implementation scenario with corresponding changes. The modules of the implementation scenario may be combined into one module, or may be further split into a plurality of sub-modules.

The above-mentioned invention numbers are merely for description and do not represent the merits of the implementation scenarios.

The above disclosure is only a few specific implementation scenarios of the present invention, however, the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims

1. A chain type sea wave power generation device is characterized by comprising a plurality of buoyancy tank power generation units which are sequentially connected, wherein a connecting hole of one buoyancy tank power generation unit is relatively and statically connected with a driving shaft of another adjacent buoyancy tank power generation unit, so that a chain type buoyancy tank power generation set is formed;

the buoyancy tank power generation unit comprises a buoyancy tank and a connecting frame fixedly connected with the buoyancy tank;

the buoyancy tank comprises a first surface and a second surface which are opposite and parallel, and the axial line of the driving shaft and the axial line of the connecting hole are parallel to the first surface;

the shaft axis of the driving shaft, the shaft axis of the connecting hole, the shaft axis of the first surface and the shaft axis of the second surface are on the same plane;

the buoyancy tanks are provided with stoppers for limiting the rotation angle between two adjacent buoyancy tank power generation units;

a buffer cushion corresponding to the stop piece is arranged on the buoyancy tank;

the stop pieces and the buffer pads are arranged in even number and are symmetrically arranged on the buoyancy tank;

when the one buoyancy tank power generation unit rotates about the axial lead of the drive shaft relative to the other buoyancy tank power generation unit, the two buoyancy tank power generation units can rotate relative to each other without interference due to the structures of the first surface and the second surface.

2. The chain type wave power generating device according to claim 1, wherein the transmission device comprises a transmission gear and a gear set driven by the transmission gear, wherein the transmission gear is fixedly connected with the driving shaft;

the energy storage device is a flywheel;

the energy conversion device is a generator.

3. A chained wave power plant according to claim 1, wherein the transmission comprises a transmission arm and a hydraulic cylinder driven by the transmission arm, wherein the transmission arm is fixedly connected with the drive shaft;

the energy storage device is a hydraulic energy storage device;

4. The chained wave power plant of claim 1, wherein a control box is further arranged inside the buoyancy tank;

and a rectifier electrically connected with the energy conversion device and a PLC for monitoring the working state of the energy conversion device are arranged in the control box.

5. The chained wave power plant of claim 1, wherein the buoyancy tank has a density less than that of water.

6. The chained wave power plant of claim 1, wherein a hatch is provided on the pontoon;

the hatch cover is detachably connected with the buoyancy tank.

7. The chain type wave power generation device according to claim 1, wherein a bow positioning hawse and a stern positioning hawse are respectively arranged at two ends of the chain type buoyancy tank power generation set;

the density of the bow positioning chain locker and the density of the stern positioning chain locker are both smaller than the density of water, anchor chains are arranged on the bow positioning chain locker and the stern positioning chain locker, and anchors are arranged on the anchor chains.