CN113897903A - Floating wave absorbing device and wave absorbing dike - Google Patents
Floating wave absorbing device and wave absorbing dike Download PDFInfo
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- CN113897903A CN113897903A CN202111376154.7A CN202111376154A CN113897903A CN 113897903 A CN113897903 A CN 113897903A CN 202111376154 A CN202111376154 A CN 202111376154A CN 113897903 A CN113897903 A CN 113897903A
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- 238000004873 anchoring Methods 0.000 claims abstract description 21
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- 239000010410 layer Substances 0.000 description 1
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- 239000013535 sea water Substances 0.000 description 1
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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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Abstract
The invention discloses a floating wave-absorbing device, which comprises two wave-absorbing units, wherein each wave-absorbing unit comprises a floating body device arranged horizontally, an energy dissipater arranged vertically and fixed at one end of the floating body device, a push plate arranged on the floating body device and arranged in parallel with the energy dissipater, a push plate driving device and an anchoring device; the floating body device is arranged below the water surface, the two wave absorption units are symmetrically arranged in an L shape, a cavity for containing water is formed between the two wave absorption units, the push plate driving device is used for driving the push plate to move left and right on the floating body device, and the anchoring device is used for adjusting the depth of the floating body device. Through the degree of depth of adjusting the distance between two push pedals and two body devices, the resonance motion takes place for induced outside wave and the inside water wave of device to consume outside long period wave energy, set up energy absorber and eliminate short period wave energy, realize being applicable to shortwave and long wave eliminating simultaneously, effectively ensured the safe operation of marine equipment.
Description
Technical Field
The invention relates to a wave absorbing device, in particular to a floating wave absorbing device and a wave absorbing embankment.
Background
Breakwaters are common hydraulic structures used for port construction, island development and protection of marine engineering equipment. Harbors built in a bay, coast or island are generally formed with sheltered waters using breakwaters, and a part of the breakwaters may also function to prevent harbor silting and waves from eroding the shoreline. However, the conventional breakwater is generally of a subfloor type, the construction cost is greatly increased along with the increase of the depth of a water area of a project, and a large-sized special construction machine is generally required in the construction process, so that the construction is complicated. Also, once damage occurs, repair is extremely difficult.
Theoretical analysis and a large number of test results show that: the energy of the waves is mostly concentrated in the surface layer of the water body, and 90% and 98% of the wave energy are concentrated in the thickness of the water layer 2 and 3 times as high as the surface layer respectively. This results in a floating breakwater adapted to the wave energy distribution characteristics, the main advantages of which include: along with the increase of the water depth, the construction cost is lower than that of a fixed breakwater, and the breakwater is easy to apply to a soft soil seabed water area and does not need special foundation treatment; the seawater exchange is not influenced, and the influence on the coastal environment, the water body and the biological exchange, the bay environment or the estuary environment and the like is extremely small; can be detached at will and reused; the construction period is short and the speed is high.
The floating breakwater is developed for a long time, is basically mature in the aspect of medium-high frequency wave elimination at present, and has a good wave elimination effect. However, the long-period wave has a long wavelength and a large vertical span of energy distribution. The former causes the reflection coefficient of the floating body to waves to be basically zero, the latter causes vertical dissipation wave absorption to be difficult to implement, and the combination of the two causes the problem of long-wave absorption to be still not effectively solved.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the defects, the invention provides a double-L-shaped floating wave absorbing device and a wave absorbing embankment which are simultaneously suitable for short wave absorbing and long wave absorbing.
The invention also provides a wave-absorbing dam using the wave-absorbing device.
The technical scheme is as follows: in order to solve the problems, the invention adopts a floating wave-absorbing device, which comprises a first wave-absorbing unit and a second wave-absorbing unit, wherein the first wave-absorbing unit comprises a first floating body device arranged horizontally, a first energy-absorbing device arranged vertically and fixed at the left end of the first floating body device, a first push plate arranged on the first floating body device and arranged in parallel with the first energy-absorbing device, a first push plate driving device and a first anchoring device; the second wave absorption unit comprises a second floating body device arranged horizontally, a second energy dissipation device arranged vertically and fixed at the right end of the second floating body device, a second push plate arranged on the second floating body device and arranged in parallel with the second energy dissipation device, a second push plate driving device and a second anchoring device; the right side of the first floating body device is over against the left side of the second floating body device, the first push plate driving device is used for driving the first push plate to move left and right on the first floating body device, the second push plate driving device is used for driving the second push plate to move left and right on the second floating body device, the first anchoring device is used for adjusting the depth of the first floating body device, and the second anchoring device is used for adjusting the depth of the second floating body device.
Furthermore, the first floating body device comprises a first fixed bin, a first movable bin and a first movable bin driving device, the first energy dissipater is fixedly arranged at the left end of the first fixed bin, the first movable bin is arranged at the right end of the first fixed bin, part of the first movable bin is nested in the first fixed bin, and the first movable bin driving device drives the first movable bin to move left and right relative to the first fixed bin to change the length of the first movable bin extending out of the first fixed bin; the second floating body device comprises a second fixed bin, a second movable bin and a second movable bin driving device, the second energy dissipater is fixedly arranged at the right end of the second fixed bin, the second movable bin is arranged at the left end of the second fixed bin, the second movable bin is partially nested in the second fixed bin, the second movable bin driving device drives the second movable bin to move left and right relative to the second fixed bin, and the length of the second movable bin extending out of the second fixed bin is changed.
Furthermore, the first floating body device also comprises a first buoyancy cabin which is arranged in the first fixed cabin and used for adjusting the buoyancy of the first wave absorbing unit; the second floating body device further comprises a second buoyancy cabin, and the second buoyancy cabin is arranged in the second fixed cabin and used for adjusting the buoyancy of the second wave absorbing unit.
Furthermore, the first movable bin driving device comprises a rack fixedly arranged on the side surface of the first movable bin, a gear meshed with the rack, a worm and gear transmission mechanism driving the gear to rotate and a first driving motor driving the worm and gear transmission mechanism to work; the gear, the worm gear transmission mechanism and the first driving motor are fixedly arranged inside the first fixed bin, and the rack extends from the left end to the right end of the first movable bin.
Further, first push pedal drive arrangement is including removing nut, screw rod and second driving motor, first fixed storehouse upper end is provided with the spout, and the spout is extended to the right end by first fixed storehouse left end, the screw rod sets up in the spout, remove the nut and set up on the screw rod, and with first push pedal bottom fixed connection, second driving motor drive screw rod rotates, and the screw rod rotates and drives and remove the nut and remove on the screw rod to it removes for first fixed storehouse to drive first push pedal.
Furthermore, a driving bevel gear is fixedly connected to an output shaft of the second driving motor, a driven bevel gear is fixedly connected to one end of the screw rod, the driven bevel gear is meshed with the driving bevel gear, and the second driving motor drives the screw rod to rotate through the driving bevel gear and the driven bevel gear.
Furthermore, the first anchoring device comprises an anchor chain wheel, an anchor chain wound on the anchor chain wheel and a third driving motor for driving the anchor chain wheel to rotate, one end of the anchor chain is wound on the anchor chain wheel, the other end of the anchor chain is fixed on the seabed, the third driving motor is fixedly arranged on the first floating body device, and the third driving motor drives the anchor chain wheel to rotate so as to realize the contraction and release of the anchor chain.
Further, first energy dissipater includes the boxroom and sets up second through empty board and a plurality of trompil baffle in the boxroom, boxroom right side fixed connection is in first body device left end, and the first through empty board of boxroom left side fixedly connected with, and the trompil of boxroom bottom, the first plane that passes empty board place and the second pass empty board place plane are on a parallel with the boxroom left surface, and trompil baffle place plane perpendicular to boxroom left surface, trompil baffle set up the trompil and are used for the second to pass empty board, and a plurality of trompil baffle parallel arrangement separate the boxroom for a plurality of cavities, first through empty board, second pass empty board and trompil baffle all set up a plurality of holes of permeating water, and the first through empty board hole of permeating water is greater than the hole of permeating water of second through empty board.
Furthermore, a fixed rail extending leftwards and rightwards is fixedly arranged at the top of the box chamber, a sliding rail extending leftwards from the left side of the first push plate is arranged at the top of the first push plate, and the sliding rail slides on the fixed rail.
The invention also adopts a wave-absorbing embankment which comprises a plurality of wave-absorbing devices, wherein the front end and the rear end of each first floating body device are fixedly provided with a first connecting lifting lug, the front end and the rear end of each second floating body device are fixedly provided with a second connecting lifting lug, the first connecting lifting lug of one wave-absorbing device is connected with the first connecting lifting lug of the other wave-absorbing device through an anchor chain, and the second connecting lifting lug of the wave-absorbing device is connected with the second connecting lifting lug of the other wave-absorbing device through an anchor chain.
Has the advantages that: compared with the prior art, the invention has the obvious advantages that the distance between the first push plate and the second push plate and the depths of the first floating body device and the second floating body device are adjusted to induce the external waves to generate resonance motion with the water waves in the device so as to consume the external long-period wave energy, the first energy dissipater and the second energy dissipater are arranged to eliminate the short-period wave energy, the wave dissipation device is simultaneously suitable for short-wave and long-wave dissipation, the safe operation of offshore equipment is effectively ensured, and the device is convenient to change, move and assemble and can be repeatedly used.
Drawings
FIG. 1 is a schematic view of the wave-damping device according to the present invention;
FIG. 2 is a schematic view of the overall structure of the wave-absorbing device of the present invention;
FIG. 3 is a cross-sectional view of a first wave-suppressing unit according to the present invention;
FIG. 4 is a view showing a structure of a first movable chamber driving device according to the present invention;
FIG. 5 is a partial enlarged view of the first movable chamber driving device of the present invention;
FIG. 6 is a front sectional view of the first push plate and the first push plate driving device of the present invention;
FIG. 7 is a side cross-sectional view of the first push plate and the first push plate driving device of the present invention;
figure 8 shows an exploded view of a first dissipater chamber according to the invention;
FIG. 9 is a schematic view of the structure of the perforated separator of the present invention;
FIG. 10 is a schematic view of a first mooring arrangement according to the present invention;
FIG. 11 is a schematic structural diagram illustrating the connection of two first wave-absorbing units according to the present invention;
FIG. 12 is a top view of a breakwater according to the present invention;
FIG. 13 is a schematic view of a breakwater according to the present invention;
FIG. 14 is a graph showing the comparison of the wave heights inside the wave-absorbing device according to the present invention;
FIG. 15 is a graph showing the comparison of the wave-absorbing effect of the wave-absorbing device of the present invention.
Detailed Description
Example 1
In practical situations, the wave-absorbing principle of the floating wave-absorbing device is as follows: firstly, supposing that the devices are arranged along the direction vertical to the main wave direction of waves, the width of a cavity formed between the floating wave absorbing devices is b, and the water depth inside the cavity is h; introducing a Cartesian rectangular coordinate system o-xyz for describing fluid movement in the device, wherein the o-xy is positioned on a hydrostatic surface of the fluid in the device, the z axis is vertically upward, the width direction is y epsilon (0, b), and the depth direction is z epsilon (-h, 0); introducing a velocity potential of Re (phi e) describing the fluid movement in the deviceiωt) Phi satisfies the Laplace equation within the device, i.e.
The normal impenetrable condition is satisfied at the left, right and bottom of the device, i.e.
By means of a separation variable method, a non-zero solution of the free motion of the fluid in the device can be deduced, namely
Wherein m is an arbitrary integer and is not zero at the same time, k is the wave number of water wave motion in the device and is the positive real root of the following dispersion equation,
ω2＝gktanh(kh)， (6)
omega is the circular frequency of the water wave motion in the device; k and m satisfy the following relationship
As can be seen from the formula (7), the wave number k of the water wave motion in the cavity can be changed by reasonably adjusting the value of b, and the expected inherent frequency omega of the water wave resonance in the device can be achieved by reasonably adjusting the water depth h in the device in combination with the formula (6)rWhen the submerged double-L-shaped floating wave-absorbing device has the external wave frequency omega and the internal water wave resonance natural frequency omegarWhen the device approaches, the device can pass through the opening at the bottom of the device, and large-amplitude water wave resonant motion occurs in the inducing device, so that the purpose of dissipating external wave energy is achieved.
As shown in fig. 1 and 2, the floating wave-absorbing device in this embodiment includes a first wave-absorbing unit and a second wave-absorbing unit, as shown in fig. 2 and 3, the first wave-absorbing unit includes a first floating body device 100, a first energy dissipater 200, a first push plate 300, a first push plate driving device 310, and a first anchoring device 400; the second wave-absorbing unit comprises a second floating body device 101, a second energy dissipater 201, a second push plate 301, a second push plate driving device 311 and a second anchoring device 401; the first floating body device 100 and the second floating body device 101 are horizontally arranged, the plane where the first floating body device 100 is located and the plane where the second floating body device 101 is located are both parallel to the horizontal plane, the first floating body device 100 and the second floating body device 101 are arranged on the same horizontal plane, the upper surfaces of the first floating body device 100 and the second floating body device 101 are both located below the water surface, and the right side of the first floating body device 100 is opposite to the left side of the second floating body device 101.
The bottom end of the first energy dissipater 200 is fixedly arranged at the left end of the first floating body device 100, the first energy dissipater 200 and the first floating body device 100 form an L-shaped arrangement, the bottom end of the second energy dissipater 201 is fixedly arranged at the right end of the second floating body device 101, the first energy dissipater 200 and the first floating body device 100 form an L-shaped mirror image arrangement, in this embodiment, the first energy dissipater 200 and the first floating body device 100 and the second energy dissipater 201 and the second floating body device 101 form a double L-shaped arrangement. The first energy dissipater 200 on the wave-facing side plays a role in dissipating short wave energy and protecting devices, and the second energy dissipater 201 on the wave-backing side can further dissipate energy of transmitted waves. The first energy dissipater 200 and the second energy dissipater 201 are both vertically arranged, the planes of the first energy dissipater 200 and the second energy dissipater 201 are parallel to each other and perpendicular to the horizontal plane, and the planes of the first energy dissipater 200 and the second energy dissipater 201 are both parallel to the left side surface of the first floating body device 100.
A first push plate 300 is arranged on the first floating body device 100, the plane of the first push plate 300 is parallel to the plane of the first energy dissipater 200, the first push plate 300 is close to the first energy dissipater 200, and a first push plate driving device 310 drives the first push plate 300 to move left and right on the first floating body device 100; a second push plate 301 is arranged on the second floating body device 101, the plane of the second push plate 301 is parallel to the plane of the second energy dissipator 201, the second push plate 301 is close to the second energy dissipator 201, a second push plate driving device 311 drives the second push plate 301 to move left and right on the second floating body device 101, a cavity is formed between the first push plate 300 and the second push plate 301, and water is filled in the cavity; the first push plate driving device 310 and the second push plate driving device 311 are used for driving the first push plate 300 and the second push plate 301 respectively, the distance between the first push plate 300 and the second push plate 301 is adjusted, and the resonance natural frequency of water waves in the cavity is changed.
The first floating body device 100 is provided with a first anchoring device 400, the first anchoring device 400 adjusts the depth of the first floating body device 100 in the water, the second floating body device 101 is provided with a second anchoring device 401, and the second anchoring device 401 adjusts the depth of the second floating body device 101 in the water, so as to further adjust the natural resonant frequency of the water wave in the cavity.
In the present embodiment, the first wave-absorbing unit and the second wave-absorbing unit are symmetrically distributed, and the structural connection relationship of the two structural units is the same except that the directions of the two structural units are opposite, and the structural connection relationship of the first wave-absorbing unit is taken as an example for explanation.
As shown in fig. 3, the first floating body device 100 includes a first fixed cabin 11, a first movable cabin 12, a first buoyancy cabin 13 and a first movable cabin driving device 15, the first energy dissipater 200 is fixedly disposed at the left end of the first fixed cabin 11, the first movable cabin 12 is disposed at the right end of the first fixed cabin 11, the first movable cabin 12 is partially nested in the first fixed cabin 11, and the first movable cabin driving device 15 drives the first movable cabin 12 to move left and right relative to the first fixed cabin 11, so as to change the length of the first movable cabin 12 extending out of the first fixed cabin 11. The nesting part of the first fixed bin 11 and the first movable bin 12 is provided with bin fixing rails 141, the upper and lower ends of the inner walls of the two sides of the first fixed bin 11 are provided with bin fixing rails 141, and the extending direction of the bin fixing rails 141 extends from the left end to the right end of the first fixed bin 11; the first movable bin 12 and the first fixed bin 11 are nested and partially provided with bin fixing rails 142, the first movable bin 12 is provided with four bin fixing rails 142 corresponding to the four bin fixing rails 141, and the bin fixing rails 142 slide in the bin fixing rails 141.
As shown in fig. 4 and 5, the first movable cabin driving device 15 includes a rack 152, a gear 151, a worm gear transmission mechanism 16 and a first driving motor, the inner side surfaces of both sides of the first movable cabin 12 are both fixedly provided with the rack 152, the rack 152 is located between the cabin fixing rails 142, and the extending direction of the rack 152 is parallel to the extending direction of the cabin fixing rails 142. Each rack 152 all is provided with gear 151 and meshes with it, gear 151 is provided with the gear shaft, gear shaft 153 passes through the vertical inside wall of installing at first fixed storehouse 11 of bearing frame, worm wheel 161 fixed connection in gear shaft lower extreme of worm gear drive 16, worm 162 installs in first fixed storehouse 11 bottom surface through the bearing frame, worm 162 tip passes through shaft coupling and first driving motor's output shaft fixed connection, first driving motor during operation, under worm gear drive 16's transmission, gear shaft 153 rotates, realize that gear 151 moves on rack 152, thereby it moves about to drive first movable bin 12 relative first fixed storehouse 11, realize the flexible on first body device 100 right side. The telescopic principle of the left side of the second floating body device 101 is the same, and details are not repeated here, and the distance between the first floating body device 100 and the second floating body device 101 is adjusted through the telescopic of the first floating body device 100 and the second floating body device 101, so that the energy transmission between ocean waves and the waves in the cavity between the first push plate 300 and the second push plate 301 is adjusted. In this embodiment, the distance between the first and second float devices 100, 101 may be set to 0.2-0.4 times the width of the cavity. The first buoyancy compartment 13 is arranged in the middle of the bottom plate of the first fixed bin 11 and is used for adjusting the buoyancy of the device.
As shown in fig. 6 and 7, the first push plate driving device 310 includes a movable nut 342, a screw 341, a bevel gear transmission mechanism 33 and a second driving motor, a sliding groove 343 is disposed on the upper surface of the first fixed bin 11, the sliding groove 343 extends from the left end of the first fixed bin 11 to the right side, the screw 341 is disposed in the sliding groove 343, the extending direction of the screw 341 is parallel to the extending direction of the sliding groove 343, the movable nut 342 is disposed on the screw 341, the movable nut 342 is in threaded connection with the screw 341, and the movable nut 342 is fixedly connected with the bottom of the first push plate 300; one end of the screw 341 is fixedly connected with a driven bevel gear 332 in the bevel gear transmission mechanism 33, the driven bevel gear 332 is meshed with the drive bevel gear 331, the drive bevel gear 331 is fixedly connected with a bevel gear shaft 333, the bevel gear shaft 333 is arranged on the inner side surface of the upper end of the first fixed bin 11 through a bearing seat, one end of the bevel gear shaft 333 is fixedly connected with the axis of the drive bevel gear 331, the other end of the bevel gear shaft 333 is fixedly connected with an output shaft of a second driving motor through a coupler, the second driving motor drives the screw 341 to rotate through the drive bevel gear 331 and the driven bevel gear 332, the screw 341 rotates to drive the movable nut 342 to move left and right on the screw 341, and accordingly the first push plate 300 is driven to move left and right relative to the first fixed bin 11. The principle that the second push plate 301 moves left and right on the second fixed bin is the same, and the change of the resonance natural frequency of the water waves in the cavity is realized by adjusting the distance between the first push plate 300 and the second push plate 301, which is not described herein again.
As shown in fig. 8 and 9, the first energy dissipater 200 comprises a chamber 21, a first perforated plate 22, a second perforated plate 23 and a plurality of apertured baffles 24. The second permeable plate 23 and the perforated partition plates 24 are arranged in the box chamber 21, the left side of the box chamber 21 is fixedly connected with the first permeable plate 22, the right side of the bottom of the box chamber 21 is fixedly connected to the left end of the first fixed bin 11, and the bottom of the box chamber 21 is perforated for water permeation; the plane of the first through-hollow plate 22 and the plane of the second through-hollow plate 23 are parallel to the left side face of the box chamber 21, the plane of the perforated partition plate 24 is perpendicular to the left side face of the box chamber 21, the perforated partition plate 24 is provided with a perforated hole for the second through-hollow plate 23 to pass through, the second through-hollow plate 23 divides the box chamber 21 from the left side to the right side at equal intervals, and the perforated partition plates 24 are arranged in parallel to divide the box chamber 21 into a plurality of chambers. As shown in fig. 7 to 9, the first permeable plate 22, the second permeable plate 23 and the perforated partition plate 24 are all provided with a plurality of rectangular permeable holes, and the first permeable plate 22 is larger than the second permeable plate 23. A fixed rail extending left and right is fixedly provided on the top of the chamber 21, a sliding rail 321 extending left from the left side of the first push plate 300 is provided on the top of the first push plate 300, and the sliding rail slides on the fixed rail 322 to guide the movement of the first push plate 300. The second energy dissipater 201 and the first energy dissipater 200 are only arranged in opposite directions, and the structural connection relationship is the same, which is not described herein again.
As shown in fig. 10, first mooring device 400 includes a chain sprocket 431, a chain 41 wound around chain sprocket 431, and a third driving motor for driving chain sprocket 431 to rotate, and chain 41 has one end fixed to the seabed and the other end passed through a chain passage 42 provided at the bottom of first holding silo 11 and then wound around chain sprocket 431, and the end fixed to chain sprocket 431. In this embodiment, two anchor chain wheels 431 are provided to connect two anchor chains 41, respectively, two anchor chains 41 extend from two ends of the anchor chain duct 42 to connect to the seabed, two anchor chain wheels 431 are coaxially connected to a pair of meshed gears, respectively, the two anchor chain wheels 431 are driven by a third driving motor to synchronously wind and release the fixed anchor chains 41, and the draft of the first fixed silo 11 is changed by matching with the first buoyancy chamber 13 in the first fixed silo 11. The principle that the draft of the second fixed bin is adjusted by the second anchoring device 401 is the same, and details are not repeated herein, and the motion amplitude and the working range of the wave absorbing device can be flexibly adjusted by the first anchoring device 400 and the second anchoring device 401, so that the device can adapt to sea areas with different water depths, is less affected by submarine topography and geological conditions, and has a wide application range.
As shown in fig. 14 and fig. 15, the wave-absorbing schematic diagram under the external wave field with the water depth H of 40m, the wave amplitude a of 1m, and the period T of 11.1943s is shown, the length direction of the first wave-absorbing device and the second wave-absorbing device is perpendicular to the propagation direction of the external wave, the distance between the first push plate 300 and the second push plate 301 in the device is b of 40m, the water depth inside the device is H of 3m, and the external wave of the device can induce the waves inside the device to form water wave resonance motion, so as to achieve the purpose of wave-absorbing.
The wave absorbing device in the embodiment utilizes the water wave resonance phenomenon, effectively solves the problem of long-period wave absorbing, and simultaneously combines the energy dissipation chamber with the device, so that the device is suitable for absorbing short-wave and long-wave waves at the same time, and the wave preventing performance of the floating wave preventing device is improved.
Example 2
As shown in fig. 11 to 13, the wave-absorbing bank in this embodiment includes a plurality of wave-absorbing devices in the above embodiments, first connecting lugs 171 are fixedly disposed at front and rear ends of the first floating body device 100, second connecting lugs are fixedly disposed at front and rear ends of the second floating body device 101, other structures of the wave-absorbing devices are not described in this embodiment, the first connecting lug 171 of one wave-absorbing device in this embodiment is connected to the first connecting lug 171 of another wave-absorbing device through an anchor chain 172, and the second connecting lug of the wave-absorbing device is connected to the second connecting lug of another wave-absorbing device through an anchor chain. The front and back ends of the first floating body device 100 and the second floating body device 101 are provided with a plurality of rubber anti-collision blocks 18, so that when two adjacent devices are close enough, mutual friction collision can be avoided.
Claims (10)
1. A floating wave-absorbing device is characterized by comprising a first wave-absorbing unit and a second wave-absorbing unit, wherein the first wave-absorbing unit comprises a first floating body device (100) arranged horizontally, a first energy-absorbing device (200) arranged vertically and fixed at the left end of the first floating body device (100), a first push plate (300) arranged on the first floating body device (100) and parallel to the first energy-absorbing device (200), a first push plate driving device (310) and a first anchoring device (400); the second wave absorption unit comprises a second floating body device (101) arranged horizontally, a second energy dissipation device (201) arranged vertically and fixed at the right end of the second floating body device (101), a second push plate (301) arranged on the second floating body device (101) and arranged in parallel with the second energy dissipation device (201), a second push plate driving device (311) and a second anchoring device (401); the right side of the first floating body device (100) is opposite to the left side of the second floating body device (101), the first push plate driving device (310) is used for driving the first push plate (300) to move left and right on the first floating body device (100), the second push plate driving device (311) is used for driving the second push plate (301) to move left and right on the second floating body device (101), the first anchoring device (400) is used for adjusting the depth of the first floating body device (100), and the second anchoring device (401) is used for adjusting the depth of the second floating body device (101).
2. The floating wave absorbing device of claim 1, wherein the first floating body device (100) comprises a first fixed cabin (11), a first movable cabin (12) and a first movable cabin driving device (15), the first energy dissipation device (200) is fixedly arranged at the left end of the first fixed cabin (11), the first movable cabin (12) is arranged at the right end of the first fixed cabin, the first movable cabin (12) is partially nested in the first fixed cabin (11), the first movable cabin driving device (15) drives the first movable cabin (12) to move left and right relative to the first fixed cabin (11), and the length of the first movable cabin (12) extending out of the first fixed cabin (11) is changed; the second floating body device (101) comprises a second fixed bin, a second movable bin and a second movable bin driving device, the second energy dissipater (201) is fixedly arranged at the right end of the second fixed bin (11), the second movable bin is arranged at the left end of the second fixed bin, the second movable bin is partially nested in the second fixed bin, the second movable bin driving device drives the second movable bin to move left and right relative to the second fixed bin, and the length of the second movable bin extending out of the second fixed bin is changed.
3. The floating wave-absorbing device of claim 2, wherein the first buoyant device (100) further comprises a first buoyancy compartment (13), the first buoyancy compartment (13) being arranged in the first fixed tank (11) for adjusting the buoyancy of the first wave-absorbing unit; the second floating body device (101) further comprises a second buoyancy cabin, and the second buoyancy cabin is arranged in the second fixed cabin and used for adjusting the buoyancy of the second wave absorbing unit.
4. The floating wave absorbing device of claim 2, wherein the first movable cabin driving device (15) comprises a rack (152) fixedly arranged on the side surface of the first movable cabin (12), a gear (151) meshed with the rack (152), a worm and gear transmission mechanism (16) for driving the gear (151) to rotate, and a first driving motor for driving the worm and gear transmission mechanism (16) to work; the gear (151), the worm gear transmission mechanism (16) and the first driving motor are fixedly arranged inside the first fixed bin (11), and the rack (152) extends from the left end to the right end of the first movable bin (12).
5. The floating wave absorbing device of claim 2, wherein the first push plate driving device (310) comprises a moving nut (342), a screw (341) and a second driving motor, a sliding groove (343) is formed in the upper end of the first fixed bin (11), the sliding groove (343) extends from the left end to the right end of the first fixed bin (11), the screw (341) is arranged in the sliding groove, the moving nut (342) is arranged on the screw (341) and is fixedly connected with the bottom of the first push plate (300), the second driving motor drives the screw (341) to rotate, the screw (341) rotates to drive the moving nut (342) to move left and right on the screw (341), and accordingly the first push plate (300) is driven to move left and right relative to the first fixed bin (11).
6. The floating wave absorbing device of claim 5, wherein a driving bevel gear (331) is fixedly connected to an output shaft of the second driving motor, a driven bevel gear (332) is fixedly connected to one end of the screw (341), the driven bevel gear (332) is engaged with the driving bevel gear (331), and the second driving motor drives the screw (341) to rotate through the driving bevel gear (331) and the driven bevel gear (332).
7. The floating wave-absorbing device of claim 1, wherein the first anchoring device (400) comprises a chain wheel (431), a chain (41) wound around the chain wheel (431), and a third driving motor for driving the chain wheel (431) to rotate, one end of the chain (41) is wound around the chain wheel (431), the other end of the chain (41) is fixed to the sea bottom, the third driving motor is fixedly arranged on the first buoyant device (100), and the third driving motor drives the chain wheel (431) to rotate so as to realize contraction and release of the chain (41).
8. The floating wave absorbing device of claim 1, wherein the first energy dissipater (200) comprises a tank chamber (21), and a second permeable plate (23) and a plurality of perforated partition plates (24) which are arranged in the tank chamber (21), the right side of the tank chamber (21) is fixedly connected to the left end of the first floating body device (100), the left side of the tank chamber (21) is fixedly connected with a first permeable plate (22), the bottom of the tank chamber (21) is perforated, the plane of the first permeable plate (22) and the plane of the second permeable plate (23) are parallel to the left side of the tank chamber (21), the plane of the perforated partition plates (24) is perpendicular to the left side of the tank chamber (21), the perforated partition plates (24) are provided with holes for the second permeable plate (23) to pass through, the perforated partition plates (24) are arranged in parallel to divide the tank chamber (21) into a plurality of chambers, the first permeable plate (22), the second permeable plate (23) and the perforated partition plates (24) are provided with a plurality of water permeable holes, the water permeable holes of the first permeable plate (22) are larger than the water permeable holes of the second permeable plate (23).
9. The floating wave absorbing device of claim 8, wherein a fixed rail extending from left to right is fixedly arranged at the top of the box chamber (21), a sliding rail extending from the left side of the first push plate (300) to left is arranged at the top of the first push plate (300), and the sliding rail slides on the fixed rail.
10. A breakwater comprising a plurality of wave absorbing devices according to any one of claims 1 to 9, wherein the first floating body device (100) is fixedly provided with first connecting lugs at the front and rear ends thereof, the second floating body device (101) is fixedly provided with second connecting lugs at the front and rear ends thereof, the first connecting lug of one wave absorbing device is connected with the first connecting lug of another wave absorbing device through an anchor chain, and the second connecting lug of the wave absorbing device is connected with the second connecting lug of another wave absorbing device through an anchor chain.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111376154.7A CN113897903B (en) | 2021-11-19 | 2021-11-19 | Floating wave absorbing device and wave absorbing dike |
| JP2022568371A JP7391431B1 (en) | 2021-11-19 | 2022-09-23 | Float-type wave-dissipating device and wave-dissipating bank |
| PCT/CN2022/120944 WO2023087916A1 (en) | 2021-11-19 | 2022-09-23 | Floating-type wave dissipating apparatus and breakwater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111376154.7A CN113897903B (en) | 2021-11-19 | 2021-11-19 | Floating wave absorbing device and wave absorbing dike |
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| CN113897903A true CN113897903A (en) | 2022-01-07 |
| CN113897903B CN113897903B (en) | 2022-07-19 |
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| JP (1) | JP7391431B1 (en) |
| CN (1) | CN113897903B (en) |
| WO (1) | WO2023087916A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023087916A1 (en) * | 2021-11-19 | 2023-05-25 | 江苏科技大学 | Floating-type wave dissipating apparatus and breakwater |
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| Publication number | Publication date |
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| WO2023087916A1 (en) | 2023-05-25 |
| JP2023551623A (en) | 2023-12-12 |
| CN113897903B (en) | 2022-07-19 |
| JP7391431B1 (en) | 2023-12-05 |
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