CN111335250A - Pile-guiding type floating breakwater and wave energy conversion integrated system and working method thereof - Google Patents
Pile-guiding type floating breakwater and wave energy conversion integrated system and working method thereof Download PDFInfo
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- CN111335250A CN111335250A CN202010101774.9A CN202010101774A CN111335250A CN 111335250 A CN111335250 A CN 111335250A CN 202010101774 A CN202010101774 A CN 202010101774A CN 111335250 A CN111335250 A CN 111335250A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
- E02B3/062—Constructions floating in operational condition, e.g. breakwaters or wave dissipating walls
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/08—Tide or wave power plants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
Abstract
The utility model discloses an integrated system of a guide pile type floating breakwater and wave energy conversion and a working method thereof, wherein the floating breakwater comprises a rectangular buoyancy tank and a guide pile; the energy conversion device comprises a transmission rod, one end of which is connected with the guide pile, and the other end of which is connected with the hydraulic piston; the annular hydraulic cylinder is connected with the hydraulic generator through a hydraulic oil pipe, and the transmission rod moves along with the rectangular buoyancy tank to push the hydraulic piston and transmit the hydraulic piston to the hydraulic generator through the hydraulic oil pipe; emergent living device includes that the ballast water cabin distributes in rectangle flotation tank both sides, and its bottom is equipped with the mounting hole and establishes erection support around the mounting hole, and emergent protection stopper passes the erection support through U type clamp and fixes on the rectangle flotation tank. The floating breakwater is combined with the energy conversion device, the floating breakwater performs energy conversion while dissipating waves, the wave dissipation performance of the breakwater can be enhanced by the reaction force of the energy conversion device on the breakwater, and the survival capability of the emergency survival device under various sea conditions can be improved by the emergency survival device.
Description
Technical Field
The disclosure relates to the technical field of new energy and breakwater engineering, in particular to a guide pile type floating breakwater and wave energy conversion integrated system and a working method thereof.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The floating breakwater is a breakwater facility which utilizes a floating body to prevent waves from being transmitted or break the waves, floats up and down and swings back and forth under the action of the waves to interfere with the movement of water particles of the waves, so that the water flow structure in the waves is damaged, and the purposes of wave dissipation and wave reduction are achieved. The wave energy utilization device has a certain energy absorption function, the functions of the floating breakwater and the wave energy utilization device are integrated, and the wave energy utilization device not only realizes the functions of wave elimination and wave reduction, but also converts clean energy such as wave energy, and is an effective mode for developing and utilizing the ocean.
The pile-guiding type floating breakwater limits the transverse oscillation and longitudinal oscillation of the buoyancy tank, effectively blocks the wave propagation, and has better wave-dissipating performance.
Most of the current researches have the problems that the wave energy utilization rate and the industrial construction cost cannot be considered at the same time, for example, the square box type wave energy conversion system has simple type and low industrial manufacturing cost, but the hydrodynamic performance is not high, and the wave energy conversion rate is low; and certain wave energy devices with high energy conversion rate have complex structural forms and high industrial cost. There is a need for a floating breakwater and wave energy conversion integrated system that is simple in construction but efficient in energy conversion.
The inventor finds that at least the following problems exist in the prior art: the existing floating breakwater which doubles as an energy conversion device mostly focuses on the design of the wave energy conversion device, and the viability of the device under extreme sea conditions is mostly ignored. Under extreme sea conditions, the floating breakwater and the wave energy conversion system are subjected to huge wave force, so that the heave amplitude of the floating breakwater is too large, the movement of the transmission rod exceeds the stroke of the hydraulic cylinder, and the energy conversion system is possibly damaged; meanwhile, the transverse wave force acting on the floating breakwater can cause the guide pile to bear larger moment, which can cause the bending or overturning damage of the guide pile, and the working performance and the service life of the system are seriously influenced.
Disclosure of Invention
In order to solve the problems, the present disclosure provides a pile-guided floating breakwater and wave energy conversion integrated system and a working method thereof, in which a floating breakwater is combined with an energy conversion device, the floating breakwater performs energy conversion while dissipating waves, the reaction force of the energy conversion device to the breakwater can enhance the wave dissipation performance of the breakwater, and an emergency survival device can improve the survival capability of the breakwater under various sea conditions.
In order to achieve the purpose, the following technical scheme is adopted in the disclosure:
in a first aspect, the present disclosure provides a pile-guided floating breakwater and wave energy conversion integrated system, comprising a floating breakwater, an energy conversion device and an emergency survival device;
the floating breakwater comprises a rectangular buoyancy tank and a guide pile penetrating through the rectangular buoyancy tank through a limiting hole;
the energy conversion device comprises a transmission rod, a hydraulic piston, an annular hydraulic cylinder, a hydraulic oil pipe and a hydraulic generator; one end of the transmission rod is connected with the guide pile through a self-locking device, and the other end of the transmission rod is connected with the hydraulic piston;
the hydraulic piston is hermetically connected with an annular hydraulic cylinder, the annular hydraulic cylinder is connected with a hydraulic generator through a hydraulic oil pipe, the transmission rod moves along with the movement of the rectangular buoyancy tank to push the hydraulic piston, hydraulic oil in the annular hydraulic cylinder is transmitted to the hydraulic generator through the hydraulic oil pipe, and the energy conversion is carried out by the hydraulic generator;
the emergency survival device comprises a ballast water tank, an emergency protective plug, a mooring anchor chain and a gravity anchor; one end of the mooring anchor chain is connected with the emergency protection plug, and the other end of the mooring anchor chain is connected with the gravity anchor; ballast water tank symmetric distribution is in rectangle flotation tank both sides, and its bottom is equipped with the mounting hole and establishes around the mounting hole with the supporting erection support of U type clamp, emergency protection stopper passes the erection support through U type clamp and fixes on the rectangle flotation tank.
In a second aspect, the present disclosure provides a method of operating an integrated pile-guided floating breakwater and wave energy conversion system, comprising:
in the sea level working mode, the rectangular buoyancy tank does heave motion under the action of waves to drive the transmission rod to drive the hydraulic piston to move, and hydraulic oil in the annular hydraulic cylinder is pumped into the hydraulic generator through the hydraulic oil pipe to perform energy conversion;
under the sea level survival mode, the self-locking device automatically releases the restraint of the guide pile on the energy conversion device, so that the restraint of the energy conversion device on the heave motion of the rectangular buoyancy tank is relieved;
under the submergence survival mode, mooring force on the mooring anchor chain exceeds the limit bearing capacity, the rubber ring on the emergency protection plug is pulled open, the restraint corresponding to the emergency protection plug is released, the emergency protection plug is pulled out, seawater enters the ballast water tank, and the rectangular buoyancy tank submerges to the position of the limiting stopper.
Compared with the prior art, the beneficial effect of this disclosure is:
the conventional wave energy conversion device has low viability in extreme weather, so that the floating breakwater and an energy conversion system thereof are easily damaged, and irreparable economic loss is caused. The emergency protection system disclosed by the invention has the advantages that the stress extreme value of the floating breakwater is improved, the internal energy conversion system is protected, the adverse effect under extreme sea conditions can be avoided independently, the water injection of the breakwater by a complex control system and a power system is not needed, and the engineering construction cost can be reduced.
The floating breakwater is combined with the energy conversion system, the floating breakwater performs energy conversion while dissipating waves, the wave dissipation performance of the breakwater can be enhanced by the reaction force of the energy conversion system on the breakwater, and meanwhile, the survival capability of the emergency survival system under various sea conditions can be improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.
Fig. 1 is an integrated system of a pile-guided floating breakwater and wave energy conversion provided in embodiment 1 of the present disclosure;
fig. 2 is an elevation view of an integrated system for pile-guided floating breakwater and wave energy conversion provided in embodiment 1 of the present disclosure;
fig. 3 is a top view of an integrated system for pile-guided floating breakwater and wave energy conversion provided in embodiment 1 of the present disclosure;
fig. 4 is a side view of an integrated system of a pile-guided floating breakwater and wave energy conversion provided in embodiment 1 of the present disclosure;
fig. 5 is a schematic view of an energy conversion device provided in embodiment 1 of the present disclosure;
FIG. 6 is a schematic view of an annular hydraulic cylinder provided in embodiment 1 of the present disclosure;
fig. 7 is a schematic view of an emergency protective plug provided in embodiment 1 of the present disclosure;
FIG. 8 is a schematic view of a chain with rungs according to embodiment 1 of the present disclosure;
wherein, 1, a rectangular buoyancy tank; 2. a rectangular breakwater; 3. a ballast water tank; 4. an emergency protective plug; 5. mooring anchor chains; 6, pile guiding; 7. a hydraulic generator; 8. a hydraulic oil pipe; 9. a transmission rod; 10. a control center; 11. an energy storage device; 12. a self-locking device; 13. an annular hydraulic cylinder; 14. a U-shaped clamp; 15. a stopper; 16. a hydraulic piston; 17. a rubber ring; 18. and (4) a gravity anchor.
The specific implementation mode is as follows:
the present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Example 1
The embodiment provides an integrated system for pile-guiding type floating breakwater and wave energy conversion, which comprises a floating breakwater, an energy conversion device and an emergency survival device; as shown in fig. 1-4, which are a block diagram of the system and its front, top and side views;
the floating breakwater comprises a rectangular buoyancy tank 1 and a guide pile 6 penetrating through the rectangular buoyancy tank through a limiting hole; in the embodiment, in order to reduce the cost and increase the mobility of the device, the floating breakwater is preferably a guide pile type floating breakwater instead of a bottom-sitting breakwater;
the bottom of the rectangular buoyancy tank 1 is provided with a wave blocking plate for improving the wave resistance and wave energy capture ratio of the structure. Incident waves are reflected after contacting the rectangular wave blocking plate 2 and are superposed with subsequent incident waves to form waves with larger amplitude, so that the heaving amplitude of the rectangular buoyancy tank 1 can be effectively increased; in addition, the rectangular wave blocking plate 2 increases the longitudinal depth of wave blocking of the breakwater and reduces the transmission coefficient of waves, so that the wave eliminating performance and the wave energy capture ratio of the device are improved, and the energy conversion rate of the device is improved;
two through limiting holes for the guide piles 6 to penetrate are symmetrically formed in the middle of the rectangular floating box 1, the rectangular floating box 1 can do vertical oscillation motion along the guide piles 6, and the transverse oscillation and longitudinal oscillation of the rectangular floating box 1 are restrained; the periphery of a penetrating limiting hole at the top of the rectangular buoyancy tank 1 is provided with holes, an annular mounting seat is embedded in advance, and two or more penetrating limiting holes can be arranged in the vertical wave direction.
As shown in fig. 5, the energy conversion device in this embodiment is an annular hydraulic energy conversion device, which includes a hydraulic generator 7, an annular hydraulic cylinder 13, a hydraulic piston 16, a transmission rod 9, an energy accumulator 11, and a control center 10; the device is installed inside the rectangular buoyancy tank, the system is prevented from being in direct contact with the open sea, the working environment is relatively stable, the energy conversion system is enabled to effectively avoid seawater corrosion, the reliability and the service life of the system are improved, and the service life of the device is prolonged.
The hydraulic power generation system establishes constraint with the guide pile 6 through the self-locking device 12; the upper end of the transmission rod 9 is connected with a self-locking device 12, the lower end of the transmission rod is connected with a hydraulic piston 16, and the self-locking device 12 is a drum-type mechanical brake;
the hydraulic piston 16 is hermetically connected with the annular hydraulic cylinder 13 by a sealing ring, so that hydraulic oil leakage and seawater erosion are prevented; as shown in fig. 6, compared with the conventional hydraulic cylinder, the annular hydraulic cylinder is adopted in the embodiment, so that the contact area between the hydraulic piston and the hydraulic oil is increased in a limited space, and the energy conversion rate is improved;
the annular hydraulic cylinder, the energy accumulator, the control center and the hydraulic generator are connected through hydraulic oil pipes, the annular hydraulic cylinder 13 is connected with the hydraulic generator 7 through a hydraulic oil pipe 8, and the annular hydraulic cylinder, the energy accumulator, the control center and the hydraulic generator form a closed loop; two annular hydraulic cylinders 13 respectively fixed on the guide piles 6 at two sides are connected to the hydraulic generator 7 through hydraulic oil pipes 8;
the rectangular buoyancy tank does heaving motion under the action of waves, the wave energy is converted into kinetic energy of the rectangular buoyancy tank, the transmission rod 9 moves up and down along with the rectangular buoyancy tank 1, the transmission rod 9 drives the hydraulic piston 16 to push the hydraulic piston to convert the kinetic energy of the rectangular buoyancy tank into hydraulic energy, then hydraulic oil is driven to be pumped into the hydraulic generator 7, secondary energy conversion is carried out by the hydraulic generator 7, and the hydraulic energy is converted into electric energy.
In this embodiment, the energy conversion device is further provided with an energy storage device 11, which stores hydraulic energy when the wind waves are large and releases the hydraulic energy when the wind waves are small, so that the hydraulic generator 7 outputs stable current and the converted current is prevented from being suddenly large and small; the control center 10 is provided with a wave condition monitoring device which can monitor the motion characteristics of the rectangular buoyancy tank 1 in real time, adjust the damping of the energy conversion device according to the motion characteristics of the rectangular buoyancy tank and adjust the running state of the power generation system so as to obtain the optimal power generation efficiency.
In this embodiment, the annular hydraulic cylinder 13 is installed on a body installation support provided inside the rectangular buoyancy tank 1, and the upper surface of the annular hydraulic cylinder 13 is flush with the upper surface of the rectangular buoyancy tank 1, and in addition, a gap between the annular hydraulic cylinder 13 and the wall of the rectangular buoyancy tank is subjected to waterproof treatment.
In the present embodiment, the hydraulic generator 7 is fixed at the center position inside the rectangular buoyancy tank 1 through a mounting bracket and is on the same horizontal plane with the two hydraulic cylinders.
In the embodiment, the connection between the transmission rod 9 and the hydraulic piston 16 is realized by welding; the transmission rod 9 and the upper self-locking device 12 are connected by adopting a universal joint so as to reduce the influence of a transverse force generated by the transverse oscillation of the rectangular buoyancy tank; the self-locking device 12 adopts a drum-type mechanical brake, the drum-type mechanical brake is fixed on the guide pile before reaching a stress extreme value, and the drum-type mechanical brake vertically rolls along the guide pile after exceeding the stress extreme value; the sealing ring is used for sealing between the hydraulic piston 16 and the annular hydraulic cylinder 13, so as to prevent the leakage of hydraulic oil and the corrosion of seawater.
In addition, within the technical tolerance range of the equipment, the embodiment can work in a mode that a plurality of hydraulic cylinders are connected in parallel, so that lower economic cost is obtained.
In the embodiment, the emergency survival device comprises a ballast water tank 3, an emergency protection plug 4, a stopper 15, a mooring anchor chain 5 and a gravity anchor 18; the ballast water tanks 3 are symmetrically distributed on two sides of the rectangular floating box 1, mounting holes for inserting the emergency protection plugs 4 are formed in the center of the bottom of the rectangular floating box, mounting supports matched with the U-shaped hoops 14 are preset around the mounting holes in the inner wall of the rectangular floating box, rubber rings 17 preset on the emergency protection plugs 4 penetrate through the mounting supports through the U-shaped hoops 14 and are fixed on the rectangular floating box 1, and waterproof treatment is performed at gaps between the emergency protection plugs 4 and the rectangular floating box 1 as shown in fig. 7; the upper end of the mooring anchor chain 5 is connected with the emergency protection plug 4, and the lower end of the mooring anchor chain is anchored with a gravity anchor 18 on the seabed; the stopper 15 is installed at a proper position of the lower portion of the guide pile 6 to limit the position where the rectangular buoyancy tank 1 falls.
In this embodiment, the cylinder height on emergency protection stopper upper portion is greater than the thickness of rectangle flotation tank wall and seals with the sealing washer in the space department between emergency protection stopper and the inside of rectangle flotation tank to do water repellent.
In the embodiment, the space between the ballast water tank 3 and the emergency protective plug 4 is sealed by a sealing ring, so that the ballast water tank 3 is prevented from being filled with water to increase the dead weight of the rectangular buoyancy tank 1, and the energy loading efficiency is reduced; the size of the ballast water tank ensures that the mass of the filled water is equal to that of the floating breakwater and the integrated system for wave energy conversion.
In order to prevent the mooring anchor chain 5 from knotting, winding and the like, in this embodiment, a chain with a crosspiece is adopted as the mooring anchor chain of the mooring system, and as shown in fig. 8, the closed part of the chain with the crosspiece is welded by flash welding, so that the tensile property of the anchor chain is improved; the minimum length of the mooring anchor chain is larger than the sum of the water depth minus the draught depth of the rectangular buoyancy tank and the heave amplitude of the rectangular buoyancy tank in the working mode, the maximum length is not larger than the sum of the height of the guide pile minus the length of the transmission rod and the height of the rectangular buoyancy tank, and the specific length is determined according to the heave amplitude of the rectangular buoyancy tank in the survival mode.
The emergency protection device comprises two working modes, namely a sea level survival mode and a submergence survival mode, wherein the sea level survival mode keeps the wave-absorbing function of the floating breakwater, but closes the wave utilization function so as to reduce the restriction effect of the energy conversion device on the movement of the floating breakwater; and in the submergence and submergence survival mode, the wave-absorbing function and the wave energy conversion function of the floating breakwater are closed.
The emergency protection system can improve the survival ability of the device under extreme sea conditions, and avoid the device from being damaged and causing unnecessary loss.
In the present embodiment, the parameters of the rectangular buoyancy tank 1 are preferably designed such that the width is 12 meters, the length is 11.7 meters, the height is 9 meters, and the draft of the rectangular buoyancy tank 1 is 3.64 meters; the rectangular breakwater 2 has a length of 11.7 m, a width of 0.9 m and a height of 1.5 m.
The device is suitable for the sea conditions that the water depth is 15-20 m, the wave period is 5-7 seconds, the wave height is 2-5 m, the transmission coefficient is 0.43, the reflection coefficient is 0.32, the wave energy dissipation and capture width ratio is 0.714 and the wave energy capture ratio of the energy conversion system is 0.43 when the damping force of the energy conversion system is set to 675KN under the sea conditions that the wave height is 3m and the period is 6 s; and the buoyancy tank with the same size has the same total displacement volume as the buoyancy tank with the breakwater, the draught depth of 3.75m, the transmission coefficient of 0.41, the reflection coefficient of 0.64, the wave energy dissipation and capture width ratio of 0.43 and the wave energy capture ratio of 0.15. Therefore, the wave energy capture ratio of the buoyancy tank added with the wave blocking plate is doubled, and the effect of the buoyancy tank is obviously better than that of the traditional structural style.
Example 2
The present embodiment provides a working method of an integrated system of a pile-guided floating breakwater and wave energy conversion, and the working method of the present embodiment provides two working modes, including:
(1) under the working mode of normal sea conditions, the mode is that the integrated device system works normally, a transmission rod of the energy conversion device is fixed with a guide pile through a self-locking device, the rectangular buoyancy tank does pendulous motion under the action of waves to drive the transmission rod to drive a hydraulic piston to move, and hydraulic oil is pumped into a hydraulic generator through a hydraulic oil pipe to perform energy conversion;
(2) in an emergency survival mode, starting an emergency survival device, wherein the emergency survival mode is divided into a sea level survival mode and a submerging and submerging survival mode;
(21) when the wind waves are increased, the sea level survival mode is started, the self-locking device 12 unlocks and releases the restraint of the guide piles on the energy conversion device, so that the restraint of the energy conversion device on the heaving motion of the rectangular buoyancy tank is released, and the energy conversion system is prevented from being damaged due to overlarge stress;
(22) when an extreme sea condition occurs, the pulling force on the mooring anchor chain 5 is increased, the submergence survival mode is started, the rubber ring 17 on the emergency protection plug 4 is pulled open, the restraint corresponding to the emergency protection plug 4 is released, the emergency protection plug 4 is pulled out, seawater enters the ballast water tank 3, and the rectangular buoyancy tank 1 sinks to the position of the limiter 15 along with the emergency protection plug, so that the force of waves acting on the system is reduced.
In this embodiment, in the normal sea state operation mode, to ensure that the wave conversion device has a stable output current, the power generation system stores the surplus hydraulic energy in the energy storage device when the waves are large, and releases the hydraulic energy in the energy storage device when the waves are small, so that the output current of the generator is kept at a relatively constant value.
In the embodiment, the floating breakwater is combined with the energy conversion system, the floating breakwater performs energy conversion while dissipating waves, the wave dissipation performance of the breakwater can be enhanced by the reaction force of the energy conversion system on the breakwater, and the survival capability of the emergency survival system under various sea conditions can be improved by the emergency survival system.
The above is merely a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, which may be variously modified and varied by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (10)
1. A pile-guiding type floating breakwater and wave energy conversion integrated system is characterized by comprising a floating breakwater, an energy conversion device and an emergency survival device;
the floating breakwater comprises a rectangular buoyancy tank and a guide pile penetrating through the rectangular buoyancy tank through a limiting hole;
the energy conversion device comprises a transmission rod, a hydraulic piston, an annular hydraulic cylinder, a hydraulic oil pipe and a hydraulic generator; one end of the transmission rod is connected with the guide pile through a self-locking device, and the other end of the transmission rod is connected with the hydraulic piston;
the hydraulic piston is hermetically connected with an annular hydraulic cylinder, the annular hydraulic cylinder is connected with a hydraulic generator through a hydraulic oil pipe, the transmission rod moves along with the movement of the rectangular buoyancy tank to push the hydraulic piston, hydraulic oil in the annular hydraulic cylinder is transmitted to the hydraulic generator through the hydraulic oil pipe, and the energy conversion is carried out by the hydraulic generator;
the emergency survival device comprises a ballast water tank, an emergency protective plug, a mooring anchor chain and a gravity anchor; one end of the mooring anchor chain is connected with the emergency protection plug, and the other end of the mooring anchor chain is connected with the gravity anchor; ballast water tank symmetric distribution is in rectangle flotation tank both sides, and its bottom is equipped with the mounting hole and establishes around the mounting hole with the supporting erection support of U type clamp, emergency protection stopper passes the erection support through U type clamp and fixes on the rectangle flotation tank.
2. The integrated pile guided floating breakwater and wave energy conversion system of claim 1, wherein the rectangular pontoons are provided with rectangular breakwaters for increasing the amplitude of the rectangular pontoons heave and the longitudinal depth of the breakwater.
3. The integrated pile floating breakwater and wave energy conversion system according to claim 1, wherein the energy conversion device further comprises a control center, and the control center is provided with a wave condition monitoring device which adjusts damping of energy conversion according to the motion characteristics of the rectangular buoyancy tank, so that the energy conversion achieves the optimal power generation efficiency.
4. The pile-guiding type floating breakwater and wave energy conversion integrated system according to claim 1, wherein an annular mounting seat is pre-embedded in the periphery of the limiting hole, the annular hydraulic cylinder is fixed in the rectangular buoyancy tank through the annular mounting seat, and the upper surface of the annular hydraulic cylinder is flush with the upper surface of the rectangular buoyancy tank.
5. The integrated pile floating breakwater and wave energy conversion system of claim 1, wherein the emergency guard comprises a sea level survival mode and a submerged survival mode; under the sea level survival mode, the self-locking device automatically releases the restraint on the transmission rod, and removes the motion restraint of the rectangular buoyancy tank on the energy conversion device.
6. The integrated pile-guided floating breakwater and wave energy conversion system according to claim 5, wherein in the submergence and submergence survival mode, mooring force on the mooring anchor chain exceeds a limit bearing capacity, the emergency protection plug is disengaged, seawater enters the ballast tank, and the rectangular buoyancy tank is submerged to a position of a stopper; and the limiting stopper is arranged on the guide pile and used for limiting the falling position of the rectangular buoyancy tank.
7. The integrated pile guided floating breakwater and wave energy conversion system of claim 1, wherein the minimum length of the mooring anchor chain is greater than the depth minus the draft of the rectangular pontoon plus the amplitude of heave of the rectangular pontoon in operating mode, and the maximum length is no greater than the height of the pile guide minus the length of the drive rod and the height of the rectangular pontoon.
8. The pile-guided floating breakwater and wave energy conversion integrated system according to claim 1, wherein the transmission rod is connected with the hydraulic piston in a welding mode, the transmission rod is connected with a self-locking device in a universal joint, the influence of transverse force generated by the transverse oscillation of the rectangular buoyancy tank is reduced, and the self-locking device is a drum-type mechanical brake.
9. The pile-guided floating breakwater and wave energy conversion integrated system according to claim 1, wherein the mooring anchor chain is a transom chain, and the closed part of the chain is welded by flash welding.
10. A working method of a pile-guiding type floating breakwater and wave energy conversion integrated system is characterized by comprising the following steps:
in the sea level working mode, the rectangular buoyancy tank does heave motion under the action of waves to drive the transmission rod to drive the hydraulic piston to move, and hydraulic oil in the annular hydraulic cylinder is pumped into the hydraulic generator through the hydraulic oil pipe to perform energy conversion;
under the sea level survival mode, the self-locking device automatically releases the restraint of the guide pile on the energy conversion device, so that the restraint of the energy conversion device on the heave motion of the rectangular buoyancy tank is relieved;
under the submergence survival mode, mooring force on the mooring anchor chain exceeds the limit bearing capacity, the rubber ring on the emergency protection plug is pulled open, the restraint corresponding to the emergency protection plug is released, the emergency protection plug is pulled out, seawater enters the ballast water tank, and the rectangular buoyancy tank submerges to the position of the limiting stopper.
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| CN202010101774.9A CN111335250A (en) | 2020-02-19 | 2020-02-19 | Pile-guiding type floating breakwater and wave energy conversion integrated system and working method thereof |
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| CN202010101774.9A CN111335250A (en) | 2020-02-19 | 2020-02-19 | Pile-guiding type floating breakwater and wave energy conversion integrated system and working method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116024931A (en) * | 2023-02-24 | 2023-04-28 | 江苏科技大学 | Modularized multifunctional floating breakwater |
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| CN105696516A (en) * | 2016-02-19 | 2016-06-22 | 中山大学 | Floating breakwater capable of preventing waves and avoiding danger under extreme sea conditions and using method thereof |
| CN108239962A (en) * | 2018-01-25 | 2018-07-03 | 江苏科技大学 | A kind of safety system of floating breakwater under extreme sea condition |
| CN109519321A (en) * | 2019-01-11 | 2019-03-26 | 哈尔滨工程大学 | A kind of floating breakwater as wave energy generating set |
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| JPH051407A (en) * | 1991-02-12 | 1993-01-08 | Kumagai Gumi Co Ltd | Breakwater |
| CN202971028U (en) * | 2012-06-25 | 2013-06-05 | 河海大学 | Vertical guide pile type floating breakwater-based wave energy generating module |
| CN105422376A (en) * | 2015-12-15 | 2016-03-23 | 大连理工大学 | Vertical guide pile type float groyne and wave power generation device |
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| CN116024931A (en) * | 2023-02-24 | 2023-04-28 | 江苏科技大学 | Modularized multifunctional floating breakwater |
| CN116024931B (en) * | 2023-02-24 | 2024-03-26 | 江苏科技大学 | Modularized multifunctional floating breakwater |
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Application publication date: 20200626 |