A floating breakwater at sea that can adjust its direction and breakwater by changing the wave travel cycle to reduce the waves

Abstract

The present invention discloses a floating breakwater at sea that can break waves by changing the wave travel cycle and has adjustable direction, including a wave breaking system, a dynamic attitude adjustment system and a roll reduction system; the wave breaking system includes a main structure and a wave breaking device, the wave breaking device includes a wave breaking component and a drainage component; the wave breaking component is composed of a plurality of wave breaking units; the wave breaking unit includes a wave-facing component, the side of the wave-facing component is connected with a turbulent flow component, and the wave-facing component is located above the drainage component; the dynamic attitude adjustment system includes a first mooring cable, a second mooring cable, an anchor block, and a cable winding shaft with bearings at both ends of a central longitudinal round cabin, the first mooring cable and the second mooring cable are wound around the two ends of the cable winding shaft in opposite directions; the roll reduction system includes a damping block, a rope, a sliding gravity block and a spring. The present invention changes the wave travel cycle, and enables the breakwater to automatically change its layout direction, and reduces the rolling motion of the breakwater during wave breaking, thereby achieving the effect of wave breaking.

Description

Technical Field

[0001] The invention relates to the field of marine engineering, and in particular to a floating breakwater at sea which can break waves by changing the wave travel cycle and has adjustable direction. Background Art

[0002] A stable marine environment is conducive to the development of marine resources. In deep-sea environments, floating breakwaters can break waves in a certain way, thus forming a relatively gentle sheltered sea area, which is more conducive to the development of various marine resources. However, floating breakwaters at this stage mostly use their own structures to resist the movement of waves, thereby achieving the requirement of reducing wave heights, which requires a higher self-strength; at the same time, floating breakwaters at this stage are mostly box-type structures, which only rely on the outer shell of the breakwater to resist the movement of waves, and the internal skeleton only plays a reinforcing role. It is necessary to use internal aggregates to break waves, thereby reducing construction costs.

[0003] At present, there is still a certain gap between the wave-breaking effect of floating breakwaters and that of fixed breakwaters. This is mainly because floating breakwaters use mooring systems for positioning, which produce larger motion responses in the process of resisting waves, such as rolling motion. Taking certain measures to reduce the rolling motion will help floating breakwaters play a greater role in wave breaking.

[0004] The wave environment is complex and changeable, mainly composed of waves of different wave heights, periods, and directions. The wave breaking of the breakwater is to reduce the wave height, and the wave breaking can be considered to change the wave period. At the same time, when the breakwater is perpendicular to the incident wave, the breakwater can play the greatest role in wave breaking. When there is a certain angle between the incident wave and the breakwater, not only is the wave breaking effect poor, but it is also not conducive to the safe operation of the mooring system. Therefore, taking certain measures to keep the breakwater perpendicular to different incident waves is conducive to the wave breaking effect of the breakwater.

[0005] Based on the above background technology, how to change the wave travel period to make the waves turbulent and achieve the effect of wave breaking; and automatically change the layout direction of the breakwater to always keep the breakwater in a position perpendicular to the direction of the incident waves; and reduce the rolling motion generated by the breakwater when breaking waves to maximize the wave breaking effect, are technical problems that need to be solved urgently. Summary of the invention

[0006] Purpose of the invention: In order to solve the above-mentioned technical problems, the present invention provides a floating breakwater at sea with adjustable direction, which can break waves by changing the wave travel period. The wave travel period is changed by the wave breaking system, so that the waves are turbulent and the wave breaking effect is achieved; the breakwater can be automatically changed in layout direction, and the position of the breakwater is always kept perpendicular to the direction of the incident waves; and the rolling motion generated by the breakwater during wave breaking is reduced, thereby enhancing the wave breaking effect.

[0007] Technical solution: To solve the above technical problems, the present invention proposes a floating breakwater at sea that can break waves by changing the wave travel cycle and has adjustable direction, including a wave breaking system, a dynamic attitude adjustment system and a roll reduction system;

[0008] The wave-breaking system comprises a main structure and a wave-breaking device, wherein the wave-breaking device comprises a wave-breaking component and a drainage component;

[0009] The wave-breaking component is composed of a plurality of wave-breaking units; the wave-breaking unit includes a wave-facing component, a turbulent flow component is connected to the side of the wave-facing component, and the wave-facing component is located above the drainage component;

[0010] The wave-facing component and the turbulent flow component are formed by splicing a plurality of perforated grid plates; the turbulent flow component is located above and below the diversion component; the angle between the perforated grid plate and the horizontal plane increases with the increase of the wave-facing distance; the diversion component is formed by splicing a plurality of perforated bottom plates vertically and horizontally;

[0011] The main structure includes a frame empty tank, a transverse tank and a middle longitudinal round tank; the transverse tank is arranged transversely on the frame empty tank; the middle longitudinal round tank is arranged longitudinally on the frame empty tank; a cable guide hole is opened on the side of the frame empty tank; a vertical cable guide hole is opened on the side of the transverse tank;

[0012] The dynamic attitude adjustment system includes a first mooring cable, a second mooring cable, an anchor block, and a cable winding shaft with bearings located at both ends of the central longitudinal round cabin. The first mooring cable and the second mooring cable are wound around the two ends of the cable winding shaft in opposite directions. Both ends of the first mooring cable and the second mooring cable pass through the fairlead holes and are connected to the anchor block. The first mooring cable drives the cable winding shaft to rotate under the action of incident waves, thereby driving the length of the second mooring cable wound around the cable winding shaft to be adjusted to make the breakwater perpendicular to the incident waves.

[0013] The anti-roll system includes a damping block, a rope, a sliding weight block and a spring; one end of the spring is connected to the intersection wall of the transverse cabin and the middle longitudinal circular cabin, and the other end is connected to the sliding weight block, and the sliding weight block is connected to the damping block through a rope and a vertical cable guide hole.

[0014] The frame cabin is a rectangular frame hollow structure made of reinforced concrete material.

[0015] The transverse cabin is a rectangular hollow component made of reinforced concrete.

[0016] The central longitudinal round cabin is a cylindrical hollow component made of reinforced concrete material.

[0017] The wave-breaking units are distributed at the connection points between the perforated bottom plates.

[0018] The angle between the wave-facing component and the horizontal plane ranges from 45° to 80°.

[0019] The damping block is composed of multiple gravity blocks.

[0020] The cross section of the weight block is an inverted pyramid that generates resistance.

[0021] The perforated bottom plate of the drainage component is perpendicular to the wave-breaking component.

[0022] The end of the cable winding shaft is fixed in the middle longitudinal round cabin through the longitudinal steel rod and the bearing fixed in the middle longitudinal round cabin.

[0023] Working principle: The present invention achieves the effect of wave breaking by changing the wave travel period and the direction-adjustable floating offshore breakwater. The wave period is changed by arranging wave-breaking units at different angles, so that the waves are turbulent and the wave breaking effect is achieved. The breakwater is automatically changed in its arrangement direction by dynamically adjusting the length of the mooring cable, and the position of the breakwater is always kept perpendicular to the direction of the incident waves. The roll motion generated by the breakwater during wave breaking is reduced by the anti-roll system, so that the wave breaking effect is optimized.

[0024] When the incident wave travels, part of the wave is reflected due to the resistance of the main structure; part of the wave is transmitted through the reduction of the perforated grating; part of the wave is drained to the underwater part of the grating through the perforated bottom plate along different angles of the perforated grating, and the waves passing through the perforated bottom plate are further reduced. The remaining waves further travel along the above-water part of the perforated grating until they are ejected at different angles, causing the waves to become turbulent, changing the wave period, and thus achieving the effect of wave elimination.

[0025] The mooring cables at both ends of the cable winding shaft have different cable winding directions, that is, the cable on the wave-facing side is lengthened, such as the third end of the mooring cable in the embodiment is lengthened, while the first end of the mooring cable on the other side of the wave-facing side is shortened. The dynamic posture adjustment process in the present invention is as follows: Since the incident wave is at a certain angle to the breakwater, the wave forces on both sides of the wave-facing side of the breakwater are different, and the end with greater force, such as the third end 8-3 of the mooring cable, is correspondingly subjected to greater force. At this time, since the mooring cable is connected front and back, the length of the third end of the mooring cable on the wave-facing side is lengthened, thereby driving the cable winding shaft to rotate. The first end of the mooring cable on the other side of the breakwater is shortened due to the rotation of the cable winding shaft, and the breakwater rotates under the joint action of the mooring cables on both sides. When the breakwater as a whole rotates to be perpendicular to the incident wave, that is, when the forces on both sides are the same, the breakwater as a whole is in a static equilibrium state, and the cable winding shaft no longer produces rotational movement, thereby achieving the purpose of posture adjustment, so that the breakwater is always perpendicular to the direction of the incident wave.

[0026] The damping block in the anti-roll system is composed of a gravity block, which is arranged below the maximum trough of the target sea area and is not disturbed by the waves. The sliding gravity block is arranged inside the transverse tank and slides laterally along the breakwater. One end of the spring is connected to the intersection wall of the transverse tank and the middle longitudinal circular tank, and the other end is connected to the sliding gravity block. The vertical fairlead is arranged at the bottom of the transverse tank at one end. One end of the rope is connected to the damping block, the middle section passes through the vertical fairlead, and the other end is connected to the sliding gravity block.

[0027] The area of ​​the upper surface of the damping block is larger than that of the lower surface, so that when the damping block moves upward, it is easy to generate greater resistance, thereby achieving the damping effect. The vertical cable guide hole extends to the bottom of the perforated grid plate to prevent the rope from colliding with the grid plate during movement.

[0028] When the incident wave reaches the breakwater, the breakwater generates a roll motion. Taking the rising wave surface as an example, since the damping block is located under the wave and is not disturbed by the wave, and the upper surface area is large, the upward movement will generate a large resistance, thereby achieving the purpose of suppressing the rising wave surface of the breakwater; secondly, due to the effect of inertia, the rope of the anti-roll system will pull the sliding gravity block outward. When the wave surface rises, the sliding gravity block moves outward, generating a greater torque relative to the breakwater, thereby suppressing the rising wave surface of the breakwater, achieving the purpose of reducing the roll motion, and keeping the breakwater in a relatively stable wave-breaking state.

[0029] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0030] (1) The wave-breaking device of the offshore floating breakwater of the present invention comprises a wave-breaking component and a drainage component. The wave-breaking component is composed of a plurality of perforated gratings with different inclination angles. The perforated gratings cooperate with the drainage component to change the wave travel period, thereby causing wave turbulence and achieving the purpose of wave breaking. At the same time, the present invention does not interfere with the wave travel, but only changes the wave period, which is conducive to reducing the strength requirement of the floating breakwater and thus reducing the cost.

[0031] (2) The present invention adopts a dynamic attitude adjustment method to dynamically adjust the length of the mooring cable, thereby enabling the breakwater to adapt to sea conditions with different wave directions, and has strong environmental adaptability. At the same time, the dynamic attitude adjustment is used to buffer the first mooring cable and the second mooring cable, thereby reducing the strength required for the mooring cable, thereby reducing the cost of the mooring cable.

[0032] (3) The present invention reduces the interference of waves on the movement of the floating breakwater by means of the damping block located below the maximum wave height trough in the target sea area in the roll reduction system, and the cooperation of the sliding gravity block, rope and spring located in the transverse cabin, thereby reducing the roll movement of the breakwater and providing a more stable wave-absorbing state for the floating breakwater. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the three-dimensional structure of the offshore floating breakwater of the present invention which can break waves by changing the wave travel cycle and has adjustable direction;

[0034] Figure 2 It is a schematic diagram of the wave elimination process of the present invention;

[0035] Figure 3 It is a schematic diagram of the interior of the main structure of the breakwater of the present invention;

[0036] Figure 4 It is a schematic diagram of the structure of the cable winding shaft component of the present invention;

[0037] Figure 5 It is a schematic diagram of the local structure of the anti-roll system of the present invention. DETAILED DESCRIPTION

[0038] The invention discloses a floating offshore breakwater which can break waves by changing the wave travel cycle and has adjustable direction, and comprises a wave breaking system, a dynamic attitude adjustment system and a roll reduction system.

[0039] The wave-breaking system includes a main structure and a wave-breaking device, and the wave-breaking device includes a wave-breaking component 7 and a drainage component 4. The wave-breaking component 7 is composed of a plurality of wave-breaking units. The wave-breaking unit includes a wave-facing component, and a turbulent flow component is connected to the side of the wave-facing component, and the wave-facing component is located above the drainage component 4.

[0040] The wave-facing component and the turbulent component are formed by splicing a plurality of perforated grid plates; the turbulent component is located above and below the diversion component 4. The angle between the perforated grid plate and the horizontal plane increases with the increase of the wave-facing distance. The diversion component 4 is formed by splicing a plurality of perforated bottom plates vertically and horizontally.

[0041] The main structure consists of a frame hollow tank 1, a transverse tank 2 and a central longitudinal round tank 3, which provide buoyancy for the entire floating breakwater. The frame hollow tank 1 is a rectangular frame hollow structure made of reinforced concrete. The transverse tank 2 is arranged transversely on the frame hollow tank 1. The central longitudinal round tank 3 is arranged longitudinally on the frame hollow tank 1. A cable guide hole 5 is opened on the side of the frame hollow tank 1. In this embodiment, the cable guide holes 5 are distributed on the longitudinal frames on both sides, and there are two cable guide holes 5 at the front and rear positions of the breakwater.

[0042] The transverse cabin 2 is a rectangular hollow component made of reinforced concrete material, which is welded to the frame hollow cabin 1 along the transverse direction of the main structure of the breakwater. The middle longitudinal circular cabin 3 is a cylindrical hollow component made of reinforced concrete material, which is welded to the frame hollow cabin 1 along the longitudinal direction of the main structure of the breakwater. The middle longitudinal circular cabin 3 is a through hollow cabin, which is not connected to the intersection with the transverse cabin 2, and its outer wall is welded to the transverse cabin 2. Both ends of the middle longitudinal circular cabin 3 are connected to the frame hollow cabin 1, and the interface is sealed. In this embodiment, welding is used for sealing. A vertical cable guide hole 6 is opened on the side of the transverse cabin 2.

[0043] The dynamic posture adjustment system includes a first mooring cable, a second mooring cable, an anchor block 9, and a cable winding shaft 10 with bearings at both ends of the central longitudinal round cabin 3. The layout direction of the breakwater is adjusted by dynamically adjusting the length of the mooring cable. The first mooring cable and the second mooring cable are wound around the two ends of the cable winding shaft 10 in opposite directions. Both ends of the first mooring cable and the second mooring cable are connected to the anchor block 9 through the fairlead hole 5. The first mooring cable drives the cable winding shaft to rotate under the action of the incident wave, thereby driving the length of the second mooring cable wound around the cable winding shaft to be adjusted until the breakwater is perpendicular to the incident wave.

[0044] The anti-rolling system includes a damping block 14, a rope 13, a sliding weight block 12 and a spring 11. One end of the spring 11 is connected to the intersection wall of the transverse cabin 2 and the middle longitudinal round cabin 3, and the other end is connected to the sliding weight block 12. The sliding weight block 12 is connected to the damping block 14 through the rope 13 and the vertical fairlead 6.

[0045] In this embodiment, the perforated bottom plate is a rectangular alloy plate with holes evenly arranged on the plate, the perforated bottom plate is welded to the frame empty cabin 1 and the transverse cabin 2, and is arranged longitudinally along the breakwater, with gaps between adjacent perforated bottom plates, and the opening direction is vertically upward and consistent with the water surface height. The spring 11 adopts a strong spring.

[0046] The present invention reflects waves through the perforated grid plate when breaking waves, and at the same time uses the perforated method to cause turbulent wave breaking during the movement of waves.

[0047] The wave-breaking unit includes a wave-facing component and a turbulent component, which are welded at a certain angle in the longitudinal direction at the gap between the perforated bottom plates. The horizontal angle between the perforated grid plate and the horizontal plane increases as the distance to the wave increases, and the angle ranges from 45 degrees to 80 degrees. The wave-facing component has only an above-water part, that is, the part above the perforated bottom plate; the turbulent component has two parts, above-water and underwater.

[0048] When the incident wave travels, part of the wave is reflected due to the resistance of the main structure; part of the wave is transmitted through the reduction of the perforated grating of the wave-facing component; part of the wave is drained to the underwater part of the grating through the perforated bottom plate along the arrangement angle of the perforated grating in the wave-facing component and the turbulent flow component, and the waves passing through the perforated bottom plate are further reduced, and the remaining waves further travel along the above-water part of the perforated grating of the wave-facing component until they are ejected at different angles, thereby achieving the effect of changing the wave period, thereby causing the waves to become turbulent and thus achieving the effect of wave elimination, and at the same time also playing the role of changing the wave period.

[0049] The cable shaft 10 is a cylinder made of alloy. The center of the cylinder is fixed inside the middle longitudinal round cabin 3 through a longitudinal steel rod and a bearing welded inside the middle longitudinal round cabin 3. The cable shaft 10 rotates along the center of the circle through the bearing. The length of the cable shaft 10 is consistent with the spacing of the mooring positions on both sides. The first mooring cable and the second mooring cable both use mooring cables 8, which are strong composite cables. The same side is a complete mooring cable, which is wound around the cable shaft 10 for a certain number of turns and connected to the anchor block 9 through the middle longitudinal round cabin 3, the frame empty cabin 1, the fairlead hole 5 in turn.

[0050] The two ends of the second mooring cable correspond to the first end 8-1 and the second end 8-2, and the first mooring cable corresponds to the third end 8-3 and the fourth end 8-4. The anchor block 9 is a gravity block with a set weight, arranged on the seabed, connected with the first mooring cable and the second mooring cable, and positioned for the entire breakwater system.

[0051] The cable winding directions at both ends of the cable winding shaft 10 are different, that is, the third end 8-3 of the first mooring cable on the wave-facing side is lengthened. The first end 8-1 of the second mooring cable on the other side of the wave-facing side is shortened. The dynamic posture adjustment process is: due to the certain angle between the incident wave and the breakwater, the wave forces on both sides of the wave-facing side of the breakwater are different. The mooring cable at the end with greater force, such as the third end 8-3, is subject to greater force. At this time, since the mooring cables are connected front and back, the third end of the first mooring cable on the wave-facing side, such as 8-3, is lengthened, thereby driving the cable winding shaft 10 to rotate. The first end 8-1 on the other side of the breakwater is shortened due to the rotation of the cable winding shaft 10, and the breakwater rotates under the joint action of the mooring cables on both sides. When the breakwater as a whole rotates to be perpendicular to the incident wave, that is, when the forces on both sides are the same, the breakwater as a whole is in a static equilibrium state, and the cable winding shaft 10 no longer generates rotational motion, thereby achieving the purpose of posture adjustment, so that the breakwater is always perpendicular to the direction of the incident wave.

[0052] The anti-roll system includes a damping block 14, a rope 13, a sliding gravity block 12, and a spring 11. The damping block 14 is composed of a number of gravity blocks and is arranged below the maximum trough of the target sea area and is not disturbed by waves. The sliding gravity block 12 is arranged inside the transverse cabin 2 and slides in a certain range along the breakwater transversely; one end of the spring 11 is connected to the intersection wall of the transverse cabin 2 and the middle longitudinal circular cabin 3, and the other end is connected to the sliding gravity block 12. The vertical fairlead 6 is arranged at the bottom of the side cabin end of the transverse cabin 2; one end of the rope 13 is connected to the damping block 14, the middle section of the rope passes through the vertical fairlead 6, and the other end of the rope is connected to the sliding gravity block 12.

[0053] In addition to having mass, the damping block 14 also has a large area on its upper surface. When the damping block 14 moves upward, it generates greater resistance due to the large area, thereby achieving a damping effect.

[0054] The vertical cable guide hole 6 passes through the wave-breaking unit to prevent the rope 13 from colliding with the wave-breaking unit during movement.

[0055] When the incident wave reaches the breakwater, the breakwater generates a roll motion. Taking the rising wave surface as an example, since the damping block 14 is located under the wave and is not disturbed by the wave, and the upper surface area is large, the upward movement will generate a large resistance, thereby suppressing the rising movement of the wave surface of the breakwater; secondly, due to the effect of inertia, the rope 13 of the anti-roll system pulls the sliding gravity block 12 outward, and when the wave surface rises, the sliding gravity block 12 moves outward, generating a large torque relative to the breakwater, thereby suppressing the rise of the wave surface of the breakwater, achieving the purpose of reducing the roll motion, and keeping the breakwater in a relatively stable wave-breaking state.

[0056] The method for reducing waves by changing the wave travel period of the offshore floating breakwater of the present invention comprises the following steps:

[0057] (1) When the incident wave travels, part of the wave is reflected due to the resistance of the main structure; part of the wave is transmitted through the cut of the perforated grating; another part of the wave is drained to the underwater part through the perforated bottom plate along different angles of the perforated grating, and the remaining wave travels further along the above-water part of the perforated grating until it is ejected at different angles, causing the wave to become turbulent and changing the wave period;

[0058] (2) The first mooring cable and the second mooring cable are wound around the two ends of the cable winding shaft 10 in opposite directions, and the two ends of the first mooring cable and the second mooring cable are connected to the anchor block 9 through the fairlead hole 5; the first mooring cable drives the cable winding shaft to rotate under the action of the incident wave, thereby driving the length of the second mooring cable wound around the cable winding shaft to be adjusted until the breakwater is perpendicular to the incident wave;

[0059] (3) When the incident wave reaches the breakwater, the breakwater produces a roll motion. The damping block is located under the wave and is not disturbed by the wave. The resistance on the upper surface of the damping block suppresses the rise of the breakwater. When the wave surface rises, the sliding gravity block moves outward to suppress the rise of the wave surface of the breakwater and reduce the roll motion.

Claims

1. A floating breakwater at sea that can adjust the direction of the wave by changing the wave travel cycle, characterized in that: Including wave elimination system, dynamic attitude adjustment system and anti-roll system; The wave-breaking system comprises a main structure and a wave-breaking device, wherein the wave-breaking device is arranged on the main structure, and the wave-breaking device comprises a wave-breaking component (7) and a drainage component (4); The wave-breaking component (7) is composed of a plurality of wave-breaking units; the wave-breaking unit comprises a wave-facing component, a turbulent flow component is connected to the side of the wave-facing component, and the wave-facing component is located above the drainage component (4); The wave-facing component and the turbulent flow component are formed by splicing a plurality of perforated grid plates; the turbulent flow component is located above and below the drainage component (4); the angle between the perforated grid plates of the wave-facing component and the horizontal plane increases as the distance from the wave faces increases; the drainage component (4) is formed by splicing a plurality of perforated bottom plates vertically and horizontally; The main structure comprises a frame empty cabin (1), a transverse cabin (2) and a central longitudinal round cabin (3); the transverse cabin (2) is arranged transversely on the frame empty cabin (1); the central longitudinal round cabin (3) is arranged longitudinally on the frame empty cabin (1); a cable guide hole (5) is provided on the side of the frame empty cabin (1); and a vertical cable guide hole (6) is provided on the side of the transverse cabin (2); The dynamic posture adjustment system comprises a first mooring cable, a second mooring cable, an anchor block (9) and a cable winding shaft (10) with a bearing, the end of the cable winding shaft being fixed in the middle longitudinal round cabin via a longitudinal steel rod and a bearing fixed in the middle longitudinal round cabin, the first mooring cable and the second mooring cable being wound around the two ends of the cable winding shaft (10) in opposite directions, the two ends of the first mooring cable and the second mooring cable being connected to the anchor block (9) through a fairlead hole (5); the first mooring cable drives the cable winding shaft to rotate under the action of incident waves, thereby driving the length of the second mooring cable wound around the cable winding shaft to be adjusted until the breakwater is perpendicular to the incident waves; The anti-roll system comprises a damping block (14), a rope (13), a sliding weight block (12) and a spring (11); one end of the spring (11) is connected to the connecting wall of the transverse cabin (2) and the middle longitudinal circular cabin (3), and the other end is connected to the sliding weight block (12); the sliding weight block (12) is connected to the damping block (14) through the rope (13) and the vertical cable guide hole (6).

2. The floating breakwater for sea that can reduce waves by changing the wave travel cycle and has adjustable direction according to claim 1, characterized in that: The frame hollow cabin (1) is a rectangular frame hollow structure made of reinforced concrete material.

3. The floating breakwater for sea that can reduce waves by changing the wave travel cycle and has adjustable direction according to claim 1, characterized in that: The transverse cabin (2) is a rectangular hollow component made of reinforced concrete material.

4. The floating breakwater for sea that can reduce waves by changing the wave travel cycle and has adjustable direction according to claim 1, characterized in that: The central longitudinal round cabin (3) is a cylindrical hollow component made of reinforced concrete material.

5. The floating breakwater for sea that can reduce waves by changing the wave travel cycle and has adjustable direction according to claim 1, characterized in that: The wave-breaking units are distributed at the connection between the perforated bottom plates.

6. The floating breakwater for sea that can reduce waves by changing the wave travel cycle and has adjustable direction according to claim 1, characterized in that: The angle between the wave-facing component and the horizontal plane is in the range of 45° to 80°.

7. The floating breakwater for sea that can reduce waves by changing the wave travel cycle and has adjustable direction according to claim 1, characterized in that: The damping block (14) is composed of a plurality of gravity blocks.

8. The floating breakwater for sea that can reduce waves by changing the wave travel cycle and has adjustable direction according to claim 7, characterized in that: The cross section of the gravity block is an inverted pyramid that generates resistance.

9. The floating breakwater for sea that can reduce waves by changing the wave travel cycle and has adjustable direction according to claim 1, characterized in that: The perforated bottom plate of the drainage component (4) is perpendicular to the wave-breaking component (7).

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