CN108061001B - Limiting locking protection device and protection method for floater under extreme sea condition - Google Patents
Limiting locking protection device and protection method for floater under extreme sea condition Download PDFInfo
- Publication number
- CN108061001B CN108061001B CN201810053801.2A CN201810053801A CN108061001B CN 108061001 B CN108061001 B CN 108061001B CN 201810053801 A CN201810053801 A CN 201810053801A CN 108061001 B CN108061001 B CN 108061001B
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- Prior art keywords
- oscillating
- float
- lifting
- control box
- mechanical
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 210000000078 claw Anatomy 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 238000012423 maintenance Methods 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 abstract description 5
- 230000009347 mechanical transmission Effects 0.000 abstract 1
- 230000036632 reaction speed Effects 0.000 abstract 1
- 238000010248 power generation Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 3
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
- F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a limit locking protection device and a protection method for floats under extreme sea conditions, wherein the device comprises an upper top plate and a lower bottom plate, more than two guide rods are arranged between the upper top plate and the lower bottom plate, and an oscillating float penetrates through each guide rod and can slide up and down along the guide rods, and the improvement is that: each guide rod is provided with a mechanical claw capable of lifting along the guide rod, a float lifting control box is arranged on the upper top plate and controls the opening, closing and lifting of the mechanical claws through a hydraulic transmission system, and a lifting ring is arranged at the position of the oscillating float opposite to each mechanical claw. The limit locking protection device disclosed by the invention has the advantages that the float lifting control box adopts the hydraulic transmission system to control the opening, closing and lifting of each mechanical claw, and compared with mechanical transmission and electric transmission, the hydraulic transmission has the advantages of light weight, small volume, small motion inertia, high reaction speed, convenience and flexibility in arrangement of various elements as required, convenience in control and the like.
Description
Technical Field
The invention belongs to the field of wave energy power generation devices, and particularly relates to a limiting locking protection device and a protection method for a floater under extreme sea conditions in the field.
Background
Ocean energy is a renewable energy source with abundant reserves, cleanness and environmental protection, and attracts great attention. The wave energy in the ocean is most widely distributed and has extremely rich reserves, and compared with other kinds of ocean energy resources, the wave energy resources have high energy flow density and can be obtained in both offshore and offshore areas. The oscillating float wave energy power generation is also called point absorption type wave energy power generation, an oscillating float is adopted as an energy capturing structure, energy is obtained by the up-and-down motion of a float floating on the sea surface under the action of waves, and the conversion from wave energy to electric energy is realized by virtue of a transmission system and a hydraulic system. As the sea wave has huge energy, the impact force of the sea wave on the coast can reach 30-50t per square meter, and can reach 60t per square meter under extreme sea conditions. This is devastating to the damage of ocean engineering, offshore facilities. In extreme sea conditions, protection of the oscillating buoy power generation device is particularly important.
When the oscillating buoy power generation device encounters extreme weather, the diameter of the buoy is large, so that the oscillating buoy power generation device needs to bear very large wave impact force, on one hand, the buoy and a guide rod for fixing the buoy can be damaged, and on the other hand, the whole power generation device can be overturned. In the traditional construction, in order to avoid the occurrence of the situations, the floats are connected with the top working platform by adopting ultra-high molecular weight polyethylene ropes around the floats, the lifting height of the floats is controlled by utilizing the float lifting control box to avoid extreme sea conditions, but under the situation, the ropes are contacted with the floats, the movement of the floats can be limited, and the power generation efficiency is influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a limiting locking protection device and a protection method for a floater under extreme sea conditions without limiting the movement of the floater.
The invention adopts the following technical scheme:
the utility model provides a spacing locking protection device of float under extreme sea condition, includes roof and lower plate, installs the guide arm more than two between roof and lower plate, and an oscillating float wears on each guide arm and can follow the guide arm and slide from top to bottom, and its improvement lies in: each guide rod is provided with a mechanical claw capable of lifting along the guide rod, a float lifting control box is arranged on the upper top plate and controls the opening, closing and lifting of the mechanical claws through a hydraulic transmission system, and a lifting ring is arranged at the position of the oscillating float opposite to each mechanical claw.
Further, the number of the guide rods is four, and the guide rods are distributed on the edge of the oscillating floater at equal intervals along the circumferential direction.
Further, four protruding parts for each guide rod to pass through are respectively arranged on the edge of the oscillating floater.
Further, the diameter of the oscillating buoy is 3.6m.
The utility model provides a limit locking protection method of float under extreme sea condition, uses above-mentioned device, and its improvement lies in:
under extreme sea conditions, when the oscillating floater rises above a preset safety height, the floater lifting control box controls the closing of each mechanical claw through the hydraulic transmission system to grab a lifting ring corresponding to the mechanical claw, and then controls each mechanical claw to rise to lift the oscillating floater away from the sea surface; after the extreme sea conditions are finished, the float lifting control box controls each mechanical claw to loosen through the hydraulic transmission system so as to put the oscillating floats back to the sea surface.
Furthermore, the float lifting control box can operate automatically or by a remote terminal.
Furthermore, when the oscillating floats need to be maintained, the float lifting control box can control the mechanical claws to descend and close through the hydraulic transmission system so as to grab a lifting ring corresponding to the mechanical claws, after grabbing, the mechanical claws are controlled to ascend so as to lift the oscillating floats away from the sea surface for maintenance, and after maintenance is finished, the float lifting control box controls the mechanical claws to loosen so as to put the oscillating floats back to the sea surface.
The beneficial effects of the invention are as follows:
the invention discloses a limit locking protection device for a floater under extreme sea conditions, wherein a floater lifting control box adopts a hydraulic transmission system to control the opening, closing and lifting of each mechanical claw. Each mechanical claw works independently, and even if one mechanical claw fails, the other mechanical claws working normally still can lift the oscillating floater away from the sea surface, so that the oscillating floater power generation device is protected.
The limit locking protection method for the floater under the extreme sea condition disclosed by the invention has the advantages that the oscillating floater is lifted away from the sea surface in the extreme sea condition, and then the oscillating floater is put back to the sea surface to normally work after the extreme sea condition is finished, so that the impact of waves on the oscillating floater can be reduced, the oscillating floater is protected from being damaged under the extreme sea condition, the reliability is high, the operation is simple and the like. The float lifting control box can be operated automatically in the whole process, and can also be controlled by a remote terminal to operate. When the oscillating floater moves in a preset safety height, the mechanical claw is not contacted with the oscillating floater and the energy extraction structure of the power generation device, and the movement of the oscillating floater and the power generation efficiency are not affected. When the oscillating floater and the auxiliary devices thereof need to be maintained, each mechanical claw can actively descend to grab the lifting ring and then ascend, so that the oscillating floater is lifted away from the sea surface, and the oscillating floater is convenient to maintain.
Drawings
FIG. 1 is a schematic diagram of a front view of a limit lock protection device according to embodiment 1 of the present invention;
FIG. 2 is an enlarged schematic view of the dashed box portion of FIG. 1;
FIG. 3 is a schematic perspective view of a limit lock protection device according to embodiment 1 of the present invention;
FIG. 4a is a schematic diagram showing the front view of the mechanical claw in the limit lock protection device disclosed in embodiment 1 of the present invention;
FIG. 4b is a schematic top view of the mechanical claw in the limit lock protection device disclosed in embodiment 1 of the present invention;
FIG. 4c is a schematic perspective view of a mechanical claw in the limit lock protection device disclosed in embodiment 1 of the present invention;
FIG. 5a is a schematic diagram showing the front view of an oscillating buoy in the limit lock protection device disclosed in embodiment 1 of the present invention;
FIG. 5b is a schematic top view of an oscillating buoy in the limit lock protection device disclosed in embodiment 1 of the present invention;
fig. 5c is a schematic perspective view of an oscillating buoy in the limit lock protection device disclosed in embodiment 1 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
1-3, this embodiment discloses a limit lock protection device for floats in extreme sea conditions, comprising an upper top plate 3 and a lower bottom plate 4, more than two guide rods 2 are installed between the upper top plate and the lower bottom plate, an oscillating float 103 is threaded on each guide rod and can slide up and down along the guide rod, as shown in fig. 4 a-4 c, a gripper 101 capable of lifting along the guide rod is installed on each guide rod, a float lifting control box is installed on the upper top plate, the float lifting control box controls the opening and closing and lifting of each gripper through a hydraulic transmission system, and a lifting ring 102 is installed on the oscillating float at the position opposite to each gripper, as shown in fig. 5 a-5 c.
In this embodiment, four guide rods are provided, and each guide rod is circumferentially equally spaced on the edge of the oscillating buoy. Four protruding parts for each guide rod to pass through are respectively arranged on the edge of the oscillating floater. The diameter of the oscillating buoy is 3.6m.
The embodiment also discloses a limit locking protection method of the floater under the extreme sea condition, and the device is used, when the oscillating floater ascends to exceed the preset safety height under the extreme sea condition, the floater lifting control box controls the closing of each mechanical claw through the hydraulic transmission system to grab the lifting ring corresponding to the mechanical claw, and then controls each mechanical claw to ascend to lift the oscillating floater off the sea; after the extreme sea conditions are finished, the float lifting control box controls each mechanical claw to loosen through the hydraulic transmission system so as to put the oscillating floats back to the sea surface.
In this embodiment, the float lifting control box may be operated either automatically or by remote terminal control.
In this embodiment, when the oscillating buoy needs to be maintained, the float lifting control box can control each gripper to descend and close through the hydraulic transmission system to grab a lifting ring corresponding to the gripper, after grabbing, each gripper is controlled to ascend so as to lift the oscillating buoy away from the sea surface for maintenance, and after maintenance is finished, the float lifting control box controls each gripper to loosen so as to put the oscillating buoy back to the sea surface through the hydraulic transmission system.
Claims (4)
1. The utility model provides a spacing locking protection device of float under extreme sea condition, includes roof and lower plate, installs the guide arm more than two between roof and lower plate, and an oscillating float wears on each guide arm and can follow guide arm and slide from top to bottom, its characterized in that: each guide rod is provided with a mechanical claw capable of lifting along the guide rod, a float lifting control box is arranged on the upper top plate and controls the opening, closing and lifting of the mechanical claws through a hydraulic transmission system, and a lifting ring is arranged at the position of the oscillating float opposite to each mechanical claw; four guide rods are arranged, and are distributed on the edge of the oscillating floater at equal intervals along the circumferential direction; four protruding parts for each guide rod to pass through are respectively arranged on the edge of the oscillating floater; the diameter of the oscillating buoy is 3.6m.
2. A method for limiting, locking and protecting a float in extreme sea conditions, using the device of claim 1, characterized in that:
under extreme sea conditions, when the oscillating floater rises above a preset safety height, the floater lifting control box controls the closing of each mechanical claw through the hydraulic transmission system to grab a lifting ring corresponding to the mechanical claw, and then controls each mechanical claw to rise to lift the oscillating floater away from the sea surface; after the extreme sea conditions are finished, the float lifting control box controls each mechanical claw to loosen through the hydraulic transmission system so as to put the oscillating floats back to the sea surface.
3. The limit lock protection method of the float under extreme sea conditions according to claim 2, wherein: the float lifting control box can operate automatically or by a remote terminal.
4. The limit lock protection method of the float under extreme sea conditions according to claim 2, wherein: when the oscillating floats need to be maintained, the float lifting control box can control the mechanical claws to descend and close through the hydraulic transmission system so as to grab a lifting ring corresponding to the mechanical claws, after grabbing, the mechanical claws are controlled to ascend so as to lift the oscillating floats away from the sea surface for maintenance, and after maintenance is finished, the float lifting control box controls the mechanical claws to loosen so as to put the oscillating floats back to the sea surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810053801.2A CN108061001B (en) | 2018-01-19 | 2018-01-19 | Limiting locking protection device and protection method for floater under extreme sea condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810053801.2A CN108061001B (en) | 2018-01-19 | 2018-01-19 | Limiting locking protection device and protection method for floater under extreme sea condition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108061001A CN108061001A (en) | 2018-05-22 |
| CN108061001B true CN108061001B (en) | 2024-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810053801.2A Active CN108061001B (en) | 2018-01-19 | 2018-01-19 | Limiting locking protection device and protection method for floater under extreme sea condition |
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| Country | Link |
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| CN (1) | CN108061001B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578769B (en) * | 2019-09-04 | 2023-08-25 | 中国海洋大学 | Self-protection system and self-protection method of wave energy power generation device in extreme marine environment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2752076A1 (en) * | 1977-11-22 | 1979-05-23 | Douglas Edward Anderson | Submerged articles recovery appts. - comprises lockable pivoted arms supported on floats and arranged to grip article or scoop material |
| CN1878952A (en) * | 2003-10-14 | 2006-12-13 | 星浪能量公司 | A wave power apparatus having a float and means for locking the float in a position above the ocean surface |
| JP2010121609A (en) * | 2008-11-17 | 2010-06-03 | Naotaka Kanemitsu | Double cylinder type wave power generation device |
| CN201739072U (en) * | 2010-07-29 | 2011-02-09 | 邝建华 | Wave energy power generation device |
| CN102418652A (en) * | 2011-12-14 | 2012-04-18 | 浙江海洋学院 | Wave power generation pile foundation platform mechanism with protection cave |
| CN105804924A (en) * | 2016-03-16 | 2016-07-27 | 武汉理工大学 | Energy superposition wave power generation device with single degree of freedom and multiple floaters combined |
| CN105863940A (en) * | 2016-05-17 | 2016-08-17 | 中国海洋大学 | Combined wave power generation device provided with oscillating buoys as well as measurement and control system and method of device |
| CN207728479U (en) * | 2018-01-19 | 2018-08-14 | 中国海洋大学 | The limitation locking protective device of float under a kind of extreme sea condition |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050127681A1 (en) * | 2003-12-16 | 2005-06-16 | Dou Shaochun | Electric power generating machines |
-
2018
- 2018-01-19 CN CN201810053801.2A patent/CN108061001B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2752076A1 (en) * | 1977-11-22 | 1979-05-23 | Douglas Edward Anderson | Submerged articles recovery appts. - comprises lockable pivoted arms supported on floats and arranged to grip article or scoop material |
| CN1878952A (en) * | 2003-10-14 | 2006-12-13 | 星浪能量公司 | A wave power apparatus having a float and means for locking the float in a position above the ocean surface |
| JP2010121609A (en) * | 2008-11-17 | 2010-06-03 | Naotaka Kanemitsu | Double cylinder type wave power generation device |
| CN201739072U (en) * | 2010-07-29 | 2011-02-09 | 邝建华 | Wave energy power generation device |
| CN102418652A (en) * | 2011-12-14 | 2012-04-18 | 浙江海洋学院 | Wave power generation pile foundation platform mechanism with protection cave |
| CN105804924A (en) * | 2016-03-16 | 2016-07-27 | 武汉理工大学 | Energy superposition wave power generation device with single degree of freedom and multiple floaters combined |
| CN105863940A (en) * | 2016-05-17 | 2016-08-17 | 中国海洋大学 | Combined wave power generation device provided with oscillating buoys as well as measurement and control system and method of device |
| CN207728479U (en) * | 2018-01-19 | 2018-08-14 | 中国海洋大学 | The limitation locking protective device of float under a kind of extreme sea condition |
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| Publication number | Publication date |
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| CN108061001A (en) | 2018-05-22 |
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