A hybrid breakwater and wave dissipation method

Abstract

The present invention provides a hybrid breakwater and a wave-breaking method, wherein the hybrid breakwater includes a jet system and an air curtain system; the jet system includes a water supply system, a water delivery pipe system and a water jet system; the air curtain system includes an air supply system, an air delivery pipe system, an air curtain plate, an air supply support, a gravity mooring cable and a gravity block. The hybrid breakwater and wave-breaking method provided by the present invention have the following advantages: the jet system can adjust the jet direction by itself to improve the wave-breaking effect; the jet system and the air curtain system can be used in a flexible combination or separately according to the incoming wave conditions, thereby reducing the energy consumption of the compressed air system and improving the wave-breaking effect.

Description

Technical Field

[0001] The invention belongs to the technical field of breakwaters, and in particular relates to a mixed breakwater and a wave dissipation method. Background Art

[0002] Breakwaters are hydraulic structures arranged on the periphery of port waters to defend against wave invasion and form a sheltered water area. Through the function of breakwaters, sufficient water depth and smooth water surface are guaranteed in the port to meet the requirements of ships anchoring in the port, carrying out loading and unloading operations, and entering and leaving the port.

[0003] The existing breakwaters have the following main problems in attenuating wave energy: the jet direction of the breakwater is fixed. Therefore, for different wave directions, a jet with a fixed direction is used to achieve wave breaking, which has a limited wave breaking effect and cannot meet the use requirements. Summary of the invention

[0004] In view of the defects of the prior art, the present invention provides a hybrid breakwater and wave breaking method, which can effectively solve the above problems.

[0005] The technical solution adopted by the present invention is as follows:

[0006] The present invention provides a hybrid breakwater, comprising a jet system (1) and an air curtain system (2); the jet system (1) comprises a water supply system (1.1), a water delivery pipe system (1.2) and a water jet system (1.3); the air curtain system (2) comprises an air supply system (2.1), an air delivery pipe system (2.2), an air curtain plate (2.3), an air supply support (2.4), a gravity mooring cable (2.5) and a gravity block (2.6);

[0007] The air curtain plate (2.3) is arranged at a predetermined distance from the shore of the protected water area along the width direction of the water area; the air curtain plate (2.3) is provided with a plurality of air curtain holes (2.3.1); a plurality of air supply supports (2.4) are installed at equal intervals at the bottom of the air curtain plate (2.3); the air supply supports (2.4) are connected to the air curtain holes (2.3.1) provided at corresponding positions of the air curtain plate (2.3); the bottom of each air supply support (2.4) is connected to the gravity tether (2.5). The top is fixed; the gravity block (2.6) of a set weight is fixed at the bottom of the gravity rope (2.5); each of the gravity blocks (2.6) sinks into the water, and the air curtain plate (2.3) sinks under the water through the gravity of each of the gravity blocks (2.6); each of the air supply supports (2.4) is also connected to one end of an air supply pipe system (2.2); the other end of the air supply pipe system (2.2) is connected to a corresponding air supply system (2.1) arranged on the shore;

[0008] At the water area where the air curtain plate (2.3) is arranged, one water jetting system (1.3) is arranged corresponding to the position of each air supply support (2.4); the water inlet end of each water jetting system (1.3) is connected to one end of a water delivery pipe system (1.2); the other end of the water delivery pipe system (1.2) is connected to a corresponding water supply system (1.1) arranged on the shore;

[0009] Thus, a hybrid breakwater is formed in which the jet system (1) and the air curtain system (2) are mixed, crossed and evenly arranged.

[0010] Preferably, the water jet system (1.3) comprises a propeller (1.3.1), a buoyancy sleeve (1.3.2), a jet tube (1.3.3) and a rotating disk (1.3.4);

[0011] The jet tube (1.3.3) is arranged in a horizontal direction; one end of the jet tube (1.3.3) is a jet tube orifice; the other end of the jet tube (1.3.3) is rotatably mounted with the direction-sensing propeller (1.3.1); the central bottom of the jet tube (1.3.3) is fixedly mounted with the rotating disk (1.3.4);

[0012] The buoyancy sleeve (1.3.2) is vertically arranged underwater; the rotating disk (1.3.4) is rotatably mounted on the top of the buoyancy sleeve, so that the rotating disk (1.3.4), the jet tube (1.3.3) and the directional propeller (1.3.1) can form a whole that can rotate freely relative to the buoyancy sleeve (1.3.2); the bottom of the buoyancy sleeve (1.3.2) is connected to one end of the water pipe system (1.2).

[0013] Preferably, the buoyancy sleeve (1.3.2) and the jet tube (1.3.3) are connected by water.

[0014] The present invention also provides a wave dissipation method for the hybrid breakwater, comprising the following steps:

[0015] Step S1, analyzing the historical wave conditions of the protected water area in the recent period, and preliminarily determining the wave velocity range and wave direction amplitude range of the protected water area;

[0016] Step S2, determining the position with the largest amplitude in the direction of the incoming wave and the corresponding direction of the incoming wave at that time according to the amplitude range of the incoming wave direction;

[0017] Step S3, arranging the air curtain plate (2.3) at the position with the largest wave amplitude in the determined incoming wave direction, and making the arrangement direction of the air curtain plate (2.3) perpendicular to the incoming wave direction determined in step S2; at the same time, determining the initial arrangement depth of the air curtain plate (2.3) in water according to the wave amplitude range in the incoming wave direction; thereby using the corresponding gravity block (2.6), and making the air curtain plate (2.3) located at the corresponding water depth position through the gravity mooring cable (2.5); making the air curtain plate (2.3) connected to the air supply system (2.1) through the air transmission pipe system (2.2);

[0018] Step S4, determining the layout position and initial layout water depth position of each water jetting system (1.3) according to the wave velocity range determined in step S1; connecting each water jetting system (1.3) with the water supply system (1.1) through the water delivery pipe system (1.2);

[0019] Step S5, in the actual process of wave protection and wave elimination, real-time wave velocity and wave direction amplitude are collected;

[0020] If the incoming wave speed is greater than the set incoming wave speed value V0, and at the same time, the incoming wave direction amplitude is greater than the set incoming wave amplitude value D0, then execute step S6;

[0021] If the incoming wave direction amplitude is less than the set incoming wave amplitude value D0, but the incoming wave speed is greater than the set incoming wave speed value V0, then execute step S7;

[0022] If the incoming wave speed is less than the set incoming wave speed value V0, and at the same time, the incoming wave direction amplitude is greater than the set incoming wave amplitude value D0, then execute step S8;

[0023] Step S6, mixed wave elimination:

[0024] The jet system (1) and the air curtain system (2) are started simultaneously; the jet system (1) and the air curtain system (2) are made to work together to reduce the wave height and the flow speed;

[0025] Step S7, wave direction downflow:

[0026] Only the jet system (1) is activated, mainly to reduce the incoming flow velocity;

[0027] Step S4, wave direction reduction:

[0028] Only the air curtain system (2) is activated, mainly to reduce the height of incoming waves.

[0029] Preferably, when the fluidic system (1) is started, its working process is:

[0030] The water supply system (1.1) supplies water to the water jetting system (1.3) through the water delivery pipe system (1.2) according to the set water supply volume; after the water reaches the water jetting system (1.3), it reaches the jet pipe (1.3.3) along the buoyancy sleeve (1.3.2) and is ejected from the jet pipe mouth of the jet pipe (1.3.3); wherein, under the action of the directional propeller (1.3.1), the water jetting system (1.3) automatically adjusts the jet direction, so that the directional propeller (1.3.1) drives the jet pipe (1.3.3) to rotate around the buoyancy sleeve (1.3.2), and the directional propeller (1.3.1) as a whole rotates to a position facing away from the waves, so that the jet pipe (1.3.3) ejects water in the direction facing the waves, reduces the incoming flow speed, and achieves the wave elimination effect.

[0031] Preferably, when the air curtain system (2) is started, its working process is:

[0032] The air supply system (2.1) supplies compressed air of a certain pressure to the air curtain plate (2.3) through the air supply pipe system (2.2) according to the set air supply volume;

[0033] Compressed air is ejected from the air curtain holes (2.3.1) of the air curtain plate (2.3), thereby forming an air bubble curtain above the air curtain plate (2.3), causing waves to break, wave energy to decay, and wave height to be reduced, thereby achieving a wave elimination effect.

[0034] The hybrid breakwater and wave-breaking method provided by the present invention have the following advantages:

[0035] The jet system can adjust the jet direction by itself to improve the wave-breaking effect; the jet system and the air curtain system can be flexibly combined and used separately according to the incoming wave conditions to reduce the energy consumption of the compressed air system and improve the wave-breaking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of the overall structure of the hybrid breakwater provided by the present invention;

[0037] Figure 2 A schematic diagram of the arrangement of the jet system provided by the present invention;

[0038] Figure 3 A schematic diagram of the arrangement of the air curtain system provided by the present invention;

[0039] Figure 4 A schematic diagram of the arrangement of a single jet system provided by the present invention;

[0040] Figure 5 A schematic diagram of the structure of the water jetting system provided by the present invention;

[0041] Figure 6 A schematic diagram of the arrangement of a single air curtain system provided by the present invention;

[0042] Figure 7 A partial schematic diagram of the air curtain system jet provided by the present invention;

[0043] Figure 8 This is a schematic diagram of the layout of the hybrid breakwater provided by the present invention.

[0044] in:

[0045] 1 jet system; 1.1 water supply system; 1.2 water pipe system; 1.3 water jet system; 1.3.1 propeller; 1.3.2 buoyancy sleeve; 1.3.3 jet tube; 1.3.4 rotating disk;

[0046] 2. Air curtain system; 2.1 Air supply system; 2.2 Gas pipeline system; 2.3 Air curtain plate; 2.3.1 Air curtain hole; 2.4 Air supply support; 2.5 Gravity tether; 2.6 Gravity block. DETAILED DESCRIPTION

[0047] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0048] See also Figure 1 to Figure 7 , the present invention provides a hybrid breakwater, comprising a jet system 1 and an air curtain system 2;

[0049] The jet system 1 includes a water supply system 1.1, a water delivery pipe system 1.2 and a water jet system 1.3; the air curtain system 2 includes an air supply system 2.1, an air delivery pipe system 2.2, an air curtain plate 2.3, an air supply support 2.4, a gravity tether 2.5 and a gravity block 2.6;

[0050] At a position at a set distance from the shore of the protected water area, an air curtain plate 2.3 is arranged along the width direction of the water area; a plurality of air curtain holes 2.3.1 are provided on the air curtain plate 2.3; a plurality of air supply supports 2.4 are installed at equal intervals at the bottom of the air curtain plate 2.3, and the air supply supports 2.4 are connected to the air curtain holes 2.3.1 provided at corresponding positions of the air curtain plate 2.3; the bottom of each air supply support 2.4 is fixed to the top of a gravity mooring 2.5; a gravity block 2.6 of a set weight is fixed to the bottom of the gravity mooring 2.5; each gravity block 2.6 sinks into the water, and the air curtain plate 2.3 is sunk underwater by the gravity of each gravity block 2.6; each air supply support 2.4 is also connected to one end of an air supply pipe system 2.2; the other end of the air supply pipe system 2.2 is connected to a corresponding air supply system 2.1 arranged on the shore;

[0051] At the water area where the air curtain panels 2.3 are arranged, a water jetting system 1.3 is arranged corresponding to the position of each air supply support 2.4; the water inlet end of each water jetting system 1.3 is connected to one end of a water supply pipe system 1.2; the other end of the water supply pipe system 1.2 is connected to a corresponding water supply system 1.1 arranged on the shore; thus, a mixed breakwater with the jet system 1 and the air curtain system 2 mixed and evenly arranged is formed.

[0052] In the present invention, the water jet system 1.3 is a water jet system that can adjust the jet direction automatically, and its specific structure is as follows: Figure 5 As shown, the water jet system 1.3 includes a propeller 1.3.1, a buoyancy sleeve 1.3.2, a jet tube 1.3.3 and a rotating disk 1.3.4;

[0053] The jet tube 1.3.3 is arranged in a horizontal direction; one end of the jet tube 1.3.3 is a jet tube opening; the other end of the jet tube 1.3.3 is rotatably mounted with a propeller 1.3.1; the central bottom of the jet tube 1.3.3 is fixedly mounted with a rotating disk 1.3.4;

[0054] The buoyancy sleeve 1.3.2 is vertically arranged underwater; a rotating disk 1.3.4 is rotatably mounted on its top, so that the whole formed by the rotating disk 1.3.4, the jet tube 1.3.3 and the propeller 1.3.1 can rotate freely relative to the buoyancy sleeve 1.3.2; the bottom of the buoyancy sleeve 1.3.2 is connected to one end of the water pipe system 1.2. The buoyancy sleeve 1.3.2 and the jet tube 1.3.3 are connected by water.

[0055] The present invention also provides a wave dissipation method for a hybrid breakwater, comprising the following steps:

[0056] Step S1, analyzing the historical wave conditions of the protected water area in the recent period, and preliminarily determining the wave velocity range and wave direction amplitude range of the protected water area;

[0057] Step S2, determining the position with the largest amplitude in the direction of the incoming wave and the corresponding direction of the incoming wave at that time according to the amplitude range of the incoming wave direction;

[0058] Step S3, arranging the air curtain plate 2.3 at the position with the largest wave amplitude in the determined incoming wave direction, and making the arrangement direction of the air curtain plate 2.3 perpendicular to the incoming wave direction determined in step S2; at the same time, determining the initial arrangement depth of the air curtain plate 2.3 in the water according to the wave amplitude range in the incoming wave direction; thereby using the corresponding gravity block 2.6, and making the air curtain plate 2.3 located at the corresponding water depth through the gravity mooring cable 2.5; making the air curtain plate 2.3 connected to the air supply system 2.1 through the air transmission pipe system 2.2;

[0059] Step S4, determining the layout position and initial layout water depth position of each water jetting system 1.3 according to the wave velocity range determined in step S1; connecting each water jetting system 1.3 with the water supply system 1.1 through the water delivery pipe system 1.2;

[0060] Step S5, in the actual process of wave protection and wave elimination, real-time wave velocity and wave direction amplitude are collected;

[0061] If the incoming wave speed is greater than the set incoming wave speed value V0, and at the same time, the incoming wave direction amplitude is greater than the set incoming wave amplitude value D0, then execute step S6;

[0062] If the incoming wave direction amplitude is less than the set incoming wave amplitude value D0, but the incoming wave speed is greater than the set incoming wave speed value V0, then execute step S7;

[0063] If the incoming wave speed is less than the set incoming wave speed value V0, and at the same time, the incoming wave direction amplitude is greater than the set incoming wave amplitude value D0, then execute step S8;

[0064] Step S6, mixed wave elimination:

[0065] Start the jet system 1 and the air curtain system 2 at the same time; make the jet system 1 and the air curtain system 2 work together to reduce the wave height and the flow speed;

[0066] Step S7, wave direction downflow:

[0067] Only the jet system 1 is activated, mainly to reduce the incoming flow velocity;

[0068] Step S4, wave direction reduction:

[0069] Only the air curtain system 2 is activated, mainly to reduce the height of incoming waves.

[0070] In the above steps, when the jet system 1 is started, its working process is:

[0071] The water supply system 1.1 supplies water to the water jetting system 1.3 through the water delivery pipe system 1.2 according to the set water supply volume; after the water reaches the water jetting system 1.3, it reaches the jet tube 1.3.3 along the buoyancy sleeve 1.3.2 and is ejected from the jet pipe mouth of the jet tube 1.3.3; wherein, under the action of the sensing propeller 1.3.1, the water jetting system 1.3 automatically adjusts the jet direction, so that the sensing propeller 1.3.1 drives the jet tube 1.3.3 to rotate around the buoyancy sleeve 1.3.2, and the sensing propeller 1.3.1 rotates as a whole to the position facing away from the waves, so that the jet tube 1.3.3 ejects water in the direction facing the waves, reduces the incoming flow speed, and achieves the wave elimination effect.

[0072] In the above steps, when the air curtain system 2 is started, its working process is:

[0073] The air supply system 2.1 supplies compressed air of a certain pressure to the air curtain plate 2.3 through the air supply pipe system 2.2 according to the set air supply volume; the compressed air is ejected from the air curtain holes 2.3.1 of the air curtain plate 2.3, thereby forming an air bubble curtain above the air curtain plate 2.3, causing waves to break, wave energy to attenuate, and wave height to be reduced, thereby achieving a wave elimination effect.

[0074] An embodiment is described below:

[0075] (I) Hybrid breakwater structure:

[0076] The hybrid breakwater includes a jet system 1 and an air curtain system 2;

[0077] 1. Fluidic system:

[0078] like Figure 4 As shown, there is a water supply system 1.1 on the shore, which provides power to the underwater water jet system 1.3 through a water pipe system 1.2. Figure 5 As shown, the bow is a jet tube 1.3.3 that ejects water toward the oncoming waves, and the tail is a directional propeller 1.3.1. The posture of the water jet system 1.3 is controlled by the rotation of the propeller. The entire upper structure rotates through a rotating disk 1.3.4, and a buoyancy sleeve 1.3.2 is added to the lower water pipe to keep the entire water jet system vertically upward.

[0079] 2. Air curtain system:

[0080] like Figure 6 As shown, the shore gas supply system 2.1 provides pressurized gas, which is delivered to the underwater air curtain related structures through the gas pipeline system 2.2. The gas pipeline system 2.2 is connected to the air curtain plate 2.3 through the gas supply support 2.4. In order to maintain the position of the air curtain plate 2.3, the gravity block 2.6 is connected to the gas supply support 2.4 through the gravity tether 2.5. Figure 7 As shown, the air curtain plate 2.3 is provided with fine air curtain holes 2.3.1, which can produce a large amount of uniform air curtain.

[0081] (II) Data simulation design process:

[0082] The control equation is the premise for solving the numerical model. The present invention realizes the effective application of the Navier-Stokes equations for incompressible viscous fluids through innovative combined models, and conducts application analysis and verification through experiments.

[0083] The k-ωSST in the control equation is a closed set of equations, k is the turbulent kinetic energy and ω is the turbulent dissipation rate, and its continuity equation and momentum equation are as follows:

[0084]

[0085] Where θ is the angle component (i, j = 1, 2, 3); p is the pressure; β is the dynamic viscosity coefficient; β t is the turbulence coefficient; x i and x j , represents the position component corresponding to i, j; ρ represents the liquid density; g i represents the acceleration due to gravity;

[0086] g represents the acceleration due to gravity, where the turbulent kinetic energy k and the turbulent dissipation rate w are calculated using the formula.

[0087]

[0088] In the formula, is the turbulent kinetic pressure, β * is the viscosity coefficient at the next moment, σ k and σ w is the shear stress, θ is the angle, S represents the grid length, and F1 is the first mixing function, which satisfies the following equation:

[0089]

[0090] In the formula, y represents direction, ν represents speed, and CD kw represents the eddy viscosity coefficient of the mixing function. t It is defined by the following equation:

[0091]

[0092] In the above formula, α1 represents the direction, and F2 is the first mixing function.

[0093] The invention gives an example of a schematic diagram of a double-row air curtain breakwater structure. During the numerical simulation, the air curtain spacing ds of the multi-row air curtain breakwater is taken as 0.3m, 0.6m and 1m respectively, and the total air supply Qt of the multi-row air curtains is required to be the same as the air supply Q of the single-row air curtain.

[0094] (III) Deployment process:

[0095] Laying out plan: Lay out from sea to land in the order of jet first and then air curtain: First, the pipeline ship sinks the water jet system 1.3 into the water, and then the pipeline ship slowly moves toward the shore to lay the water supply pipeline system 1.2 in the water. Near the coast, the shore personnel drag the pipeline system to the shore and connect it to the water supply system 1.1, and then lay out other jet systems one by one. Arrange the air curtain system 2 after reaching the preset width. First, connect the air supply support 2.4 to the air curtain plate 2.3, connect multiple air supply supports 2.4 at one time, and then sink the gravity block 2.6 into the water. The pipeline ship then lays the gas transmission pipeline system 2.2 from sea to land, and finally manually connects the gas transmission pipeline system 2.2 to the air supply system 2.1. After the layout is completed, Figure 1 shown.

[0096] (IV) Working process:

[0097] Mixed wave elimination: Start the water supply system 1.1 and the air supply system 2.1 at the same time, and introduce water and air into the water supply pipe system 1.2 and the air supply pipe system 2.2. The jet system 1 and the air curtain system 2 work at the same time, which can effectively reduce the wave height and flow speed. When the waves and flows are small, the water supply system 1.1 and the air supply system 2.1 can be started at intervals to reduce energy consumption.

[0098] Wave direction flow reduction: When the wave amplitude is not large, but the flow velocity is high, only the water supply system 1.1 can be activated, and the air supply system 2.1 is not activated. If, after research and judgment, the main purpose of protecting the water area is to reduce the flow velocity, only the jet system 1 can be deployed, such as Figure 2 shown.

[0099] Wave direction reduction: When the velocity in the incoming wave direction is not large, but the incoming wave amplitude is large, only the air supply system 2.1 can be activated, and the water supply system 1.1 is not activated. If, after research and judgment, the main purpose of protecting the water area is to reduce the wave amplitude, only the air curtain system 2 can be deployed, such as Figure 3 shown.

[0100] (V) Experimental comparison

[0101] The experimental data of the breakwater mentioned in the present invention are compared as follows:

[0102] The data model parameters are as follows: the mathematical model is 50m long and 5m high; the air curtain system 2 is arranged 25m offshore and the jet system 1 is arranged 20m offshore; the test water depth is 3 meters. Since the model is a sediment-free water flow, the incident wave height is 1m and the incident wave period is 1.26s; two sets of numerical observation surfaces are set at 15m and 30m, and the projection coefficient T=Jt / Ji is obtained by comparing the wave heights at the two locations to verify the wave dissipation effect of the breakwater.

[0103] Environment 1: The jet system 1 does not work, and only the air curtain system 2 is used to dissipate energy, and its air supply volume is 15m 3 / (h﹡m), the incoming flow directions are 60°, 45°, 30°, 15°, and 0° with the breakwater axis, and the transmission coefficients are 0.94, 0.62, 0.57, 0.45, and 0.39;

[0104] Environment 2: Jet system 1 is working, and its water supply is 1.5m 3 / (h﹡m), air curtain system 2 is not working, the incoming flow directions are 60°, 45°, 30°, 15°, and 0° with the breakwater axis, and the transmission coefficients are 0.87, 0.56, 0.44, 0.32, and 0.28;

[0105] Environment 3: Jet system 1 and air curtain system 2 work simultaneously, and the water supply is 1.5m 3 / (h﹡m), air supply volume is 15m 3 / (h﹡m), the incoming flow directions are 60°, 45°, 30°, 15°, and 0° with the axis of the breakwater, and the transmission coefficients are 0.71, 0.60, 0.31, 0.23, and 0.15;

[0106] Through comparison, it is found that the present invention can select corresponding working schemes under different sea conditions, and the effect of combined use is obviously better than that of single use, especially the smaller the wave angle, the better the wave breaking effect.

[0107] A hybrid breakwater and wave dissipation method provided by the present invention have the following characteristics:

[0108] ① Jet system: Made of steel and ultra-light foam, it is the core component of the jet system. It is mainly used to turn the incoming water and spray water to reduce the velocity of the wave-directed flow. It consists of a propeller, a jet tube, etc. In particular, the jet system can adjust the jet direction by itself to improve the wave elimination effect.

[0109] ② Air curtain system: It is made of high-strength anti-corrosion steel, mainly used to generate air curtain to reduce wave height. It is pulled by gravity blocks and can be spliced ​​into multiple structures.

[0110] ③ The jet system and air curtain system can be used in combination flexibly or separately according to the incoming wave conditions to reduce the energy consumption of the compressed air system.

[0111] ④ By regulating the water supply system, air supply system and other power mechanisms, the wave-breaking effect can be improved and energy consumption can be reduced in specific situations.

[0112] ⑤ The present invention is arranged underwater to avoid obstruction of navigation sight and improve the safety of sailing ships.

[0113] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be considered as the scope of protection of the present invention.

Claims

1. A hybrid breakwater, characterized in that: The invention comprises a jet system (1) and an air curtain system (2); the jet system (1) comprises a water supply system (1.1), a water delivery pipe system (1.2) and a water jet system (1.3); the air curtain system (2) comprises an air supply system (2.1), an air delivery pipe system (2.2), an air curtain plate (2.3), an air supply support (2.4), a gravity tether (2.5) and a gravity block (2.6); The air curtain plate (2.3) is arranged at a predetermined distance from the shore of the protected water area along the width direction of the water area; the air curtain plate (2.3) is provided with a plurality of air curtain holes (2.3.1); a plurality of air supply supports (2.4) are installed at equal intervals at the bottom of the air curtain plate (2.3); the air supply supports (2.4) are connected to the air curtain holes (2.3.1) provided at corresponding positions of the air curtain plate (2.3); the bottom of each air supply support (2.4) is connected to the gravity tether (2.5). The top is fixed; the gravity block (2.6) of a set weight is fixed at the bottom of the gravity rope (2.5); each of the gravity blocks (2.6) sinks into the water, and the air curtain plate (2.3) sinks under the water through the gravity of each of the gravity blocks (2.6); each of the air supply supports (2.4) is also connected to one end of an air supply pipe system (2.2); the other end of the air supply pipe system (2.2) is connected to a corresponding air supply system (2.1) arranged on the shore; At the water area where the air curtain plate (2.3) is arranged, one water jetting system (1.3) is arranged corresponding to the position of each air supply support (2.4); the water inlet end of each water jetting system (1.3) is connected to one end of a water delivery pipe system (1.2); the other end of the water delivery pipe system (1.2) is connected to a corresponding water supply system (1.1) arranged on the shore; The water jet system (1.3) comprises a propeller (1.3.1), a buoyancy sleeve (1.3.2), a jet tube (1.3.3) and a rotating disk (1.3.4); The jet tube (1.3.3) is arranged in a horizontal direction; one end of the jet tube (1.3.3) is a jet tube orifice; the other end of the jet tube (1.3.3) is rotatably mounted with the direction-sensing propeller (1.3.1); the central bottom of the jet tube (1.3.3) is fixedly mounted with the rotating disk (1.3.4); The buoyancy sleeve (1.3.2) is vertically arranged underwater; the rotating disk (1.3.4) is rotatably mounted on the top of the buoyancy sleeve, so that the rotating disk (1.3.4), the jet tube (1.3.3) and the directional propeller (1.3.1) can be freely rotated relative to the buoyancy sleeve (1.3.2); the bottom of the buoyancy sleeve (1.3.2) is connected to one end of the water pipe system (1.2); Thus, a hybrid breakwater is formed in which the jet system (1) and the air curtain system (2) are mixed, crossed and evenly arranged.

2. A hybrid breakwater according to claim 1, characterized in that: The buoyancy sleeve (1.3.2) and the jet tube (1.3.3) are connected by water.

3. A wave dissipation method for a hybrid breakwater according to any one of claims 1 to 2, characterized in that: The following steps are involved: Step S1, analyzing the historical wave conditions of the protected water area in the recent period, and preliminarily determining the wave velocity range and wave direction amplitude range of the protected water area; Step S2, determining the position with the largest amplitude in the direction of the incoming wave and the corresponding direction of the incoming wave at that time according to the amplitude range of the incoming wave direction; Step S3, arranging the air curtain plate (2.3) at the position with the largest wave amplitude in the determined incoming wave direction, and making the arrangement direction of the air curtain plate (2.3) perpendicular to the incoming wave direction determined in step S2; at the same time, determining the initial arrangement depth of the air curtain plate (2.3) in water according to the wave amplitude range in the incoming wave direction; thereby using the corresponding gravity block (2.6), and making the air curtain plate (2.3) located at the corresponding water depth position through the gravity mooring cable (2.5); making the air curtain plate (2.3) connected to the air supply system (2.1) through the air transmission pipe system (2.2); Step S4, determining the layout position and initial layout water depth position of each water jetting system (1.3) according to the wave velocity range determined in step S1; connecting each water jetting system (1.3) with the water supply system (1.1) through the water delivery pipe system (1.2); Step S5, in the actual process of wave protection and wave elimination, real-time wave velocity and wave direction amplitude are collected; If the incoming wave speed is greater than the set incoming wave speed value V0, and at the same time, the incoming wave direction amplitude is greater than the set incoming wave amplitude value D0, then execute step S6; If the incoming wave direction amplitude is less than the set incoming wave amplitude value D0, but the incoming wave speed is greater than the set incoming wave speed value V0, then execute step S7; If the incoming wave speed is less than the set incoming wave speed value V0, and at the same time, the incoming wave direction amplitude is greater than the set incoming wave amplitude value D0, then execute step S8; Step S6, mixed wave elimination: The jet system (1) and the air curtain system (2) are started simultaneously; the jet system (1) and the air curtain system (2) are made to work together to reduce the wave height and the flow speed; Step S7, wave direction downflow: Only the jet system (1) is activated, mainly to reduce the incoming flow velocity; Step S4, wave direction reduction: Only the air curtain system (2) is activated, mainly to reduce the height of incoming waves.

4. The method according to claim 3, characterized in that When the jet system (1) is started, its working process is: The water supply system (1.1) supplies water to the water jetting system (1.3) through the water delivery pipe system (1.2) according to the set water supply volume; after the water reaches the water jetting system (1.3), it reaches the jet pipe (1.3.3) along the buoyancy sleeve (1.3.2) and is ejected from the jet pipe mouth of the jet pipe (1.3.3); wherein, under the action of the directional propeller (1.3.1), the water jetting system (1.3) automatically adjusts the jet direction, so that the directional propeller (1.3.1) drives the jet pipe (1.3.3) to rotate around the buoyancy sleeve (1.3.2), and the directional propeller (1.3.1) as a whole rotates to a position facing away from the waves, so that the jet pipe (1.3.3) ejects water in the direction facing the waves, reduces the incoming flow speed, and achieves the wave elimination effect.

5. The method according to claim 3, characterized in that: When the air curtain system (2) is started, its working process is as follows: The air supply system (2.1) supplies compressed air of a certain pressure to the air curtain plate (2.3) through the air supply pipe system (2.2) according to the set air supply volume; Compressed air is ejected from the air curtain holes (2.3.1) of the air curtain plate (2.3), thereby forming an air bubble curtain above the air curtain plate (2.3), causing waves to break, wave energy to decay, and wave height to be reduced, thereby achieving a wave elimination effect.

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