Mariculture net cage anti-pollution net body structure and protection method thereof

Abstract

The invention belongs to the technical field of marine culture net cages, and discloses a marine culture net cage anti-pollution net body structure and a protection method thereof.The marine culture net cage anti-pollution net body structure comprises a net body, the top of the net body is fixedly connected with a supporting frame mechanism, the net body comprises a collective netting and an anti-pollution coating, and the bottom of the supporting frame mechanism is fixedly connected with an anti-pollution flow guide part. Water flow sprayed through extrusion is used for conducting water flow repeated hydraulic impact along the outer side face of the net body, attachment of animals and plants is avoided, anti-pollution treatment is achieved, the other face is matched with compressed flowing water flow, the alloy copper pipe is scoured, the dispersion effect of copper ions is improved, the copper ions are dispersed on the outer side of the net body, and the anti-pollution effect is achieved. Growth inhibition of shellfish organisms is achieved, the situation that shellfish adheres to the outer side of the net body is reduced, meanwhile, the buffer release columns are scoured, dispersion of inhibitors in the outer side faces of the buffer release columns is accelerated, breeding of other animals and plants on the outer side of the net body is reduced, and therefore blockage pollution caused by attachment of underwater animals and plants to the surface of the net body is reduced, and the comprehensive anti-pollution effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of marine aquaculture cages, and specifically relates to an anti-fouling net structure of a marine aquaculture cage and a protection method thereof. Background Art

[0002] The mesh of the marine aquaculture cage is the core structure of the cage system that is in direct contact with seawater and aquacultured organisms. It is mainly composed of a net, a support frame and fixed components. During underwater use, it is invaded by microbial films, animals and plants, and an attached dirt layer is formed on the outside of the mesh, which usually requires regular cleaning.

[0003] The marine aquaculture cage net structure in the prior art usually performs regular active cleaning of the outside of the net during anti-fouling treatment, and uses a number of devices and a large amount of manpower to actively clean and clear the biological invasion fouling layer on the outside of the net. However, the actual operation is difficult, the regular cleaning frequency is high, the anti-fouling effect is not good, the actual mechanical cleaning is difficult, and the net corrodes, sinks, and becomes blocked under non-destructive action, which greatly reduces the frequency of water exchange between the inside and outside of the net in the aquaculture area, greatly increases the aquaculture risk, and the use effect is not good. Summary of the invention

[0004] The object of the present invention is to provide an anti-fouling net structure for a marine aquaculture cage and a protection method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-fouling net structure of a marine aquaculture cage and a protection method thereof, comprising a net, the top of which is fixedly connected to a support frame mechanism, the net comprising a collective net and an anti-fouling coating, the bottom of which is fixedly connected to an anti-fouling guide part, the anti-fouling guide parts are distributed around the outside of the net at equal intervals and are fixedly connected to the net, the outer side of the anti-fouling guide part is provided with a compression action part, and the two sides of the anti-fouling guide part are symmetrically connected to a composite anti-fouling component,

[0006] The composite anti-fouling component comprises an alloy copper tube, a first ejection hole, a buffer release column, a second ejection hole and a third ejection hole.

[0007] Preferably, the anti-fouling guide part includes a mounting seat, an auxiliary frame, an internal cavity, a connecting hole, a compression cavity, a side hole and a replenishing groove, the mounting seat is fixedly connected to the outside of the mesh body, the auxiliary frame is fixedly connected to the front side of the mounting seat, the internal cavity is opened inside the mounting seat, the connecting hole is opened inside the mounting seat, the compression cavity is opened on the front side of the mounting seat and corresponds to the auxiliary frame one by one, the two ends of the connecting hole are respectively connected to the internal cavity and the compression cavity, the side holes are opened on both sides of the mounting seat and connected to the internal cavity, the replenishing groove is opened on the side of the auxiliary frame, and a heating tube is fixedly provided in the internal cavity.

[0008] Preferably, the compression action member includes a transverse plate, a connecting rod, a compression block, a sealing outer ring and an electric push rod, the compression block is movably sleeved in the auxiliary frame, the connecting rod is fixedly connected to the end face of the compression block, the other end of the connecting rod is fixedly connected to the transverse plate, the sealing outer ring is fixedly nested on the outer side face of the compression block, the electric push rod is fixedly connected to the front side of the mounting seat, and the movable end is fixedly connected to the transverse plate.

[0009] Preferably, the ejection hole 1 is symmetrically opened on the upper and lower sides of the outer surface of the alloy copper tube and kept inclined, and the ejection hole 3 is opened on the end face of the alloy copper tube. The alloy copper tube is fixed on the side of the mounting seat and connected with the side hole.

[0010] Preferably, the second ejection hole is opened on the front side of the outer side of the alloy copper tube, one end of the buffer release column is fixedly connected to the inside of the alloy copper tube, and the other end is sleeved in the second ejection hole, and an annular gap is provided between the second ejection hole and the buffer release column.

[0011] Preferably, a bio-inhibitor is embedded on the surface of the buffer-releasing column, and the bio-inhibitor includes one or any of capsaicin and isothiazolinone.

[0012] Preferably, the anti-fouling coating includes one or any one of a silicon-based coating and a copper powder coating.

[0013] Preferably, a mounting through hole is provided at the top of the mounting seat, a solenoid valve is provided at the lower end of the mounting through hole, the mounting through hole is connected to the internal cavity, when the solenoid valve is turned on, the internal cavity is connected to the support frame mechanism through the mounting through hole, the support frame mechanism includes a support ring, a bottom hole and a ring cavity, the bottom hole is provided at the bottom of the support ring and is connected to the mounting through hole, the ring cavity is provided inside the support ring and is connected to the bottom hole, the bottom of the support ring is fixedly connected to the mesh body and the mounting seat, and a feed hole is provided at the top of the support ring.

[0014] Preferably, connecting rods are fixedly connected to both sides of the transverse plate, and the other ends of the connecting rods are fixedly connected to the outer side surfaces of the net body.

[0015] A method for an anti-fouling net structure of a marine aquaculture cage, comprising the following protection steps:

[0016] Step 1: Immerse the net in seawater. As the seawater flows, the anti-fouling coating on the outer surface of the net releases copper ions.

[0017] Step 2: Start the compression action piece and move it outward first, so that the seawater flows into the anti-fouling guide part, and the compression action piece is immediately reset and compressed, so that the seawater in the anti-fouling guide part is quickly pressed into the composite anti-fouling component;

[0018] Step 3: The water flow squeezed into the composite anti-fouling component is sprayed out along the first spray hole, and the net body is washed along the outer side of the net body. The water flow sprayed along the second spray hole washes the buffer release column and washes the inhibitor to the outer area of ​​the net body. At the same time, the third spray hole sprays water to the outside of the net body, resets the compression action part and performs reciprocating processing;

[0019] Step 4: With the reciprocating movement of the compression action member, the connecting rod is synchronously driven to reciprocate and pull the outer side of the net body, causing the net body to vibrate at various locations.

[0020] The beneficial effects of the present invention are as follows:

[0021] (1) The present invention utilizes an anti-fouling guide part, a compression action part, and a composite anti-fouling component. In actual use, the compression action part can be actively started to suck in seawater and compress it to spray it out through repeated suction and compression. In conjunction with the alloy copper tube, the spray hole and the buffer release column in the composite anti-fouling component, on the one hand, the water flow ejected by extrusion is used to repeatedly hydraulically impact the water flow along the outer side of the net body to avoid the attachment of animals and plants, thereby achieving anti-fouling treatment. On the other hand, the compressed flowing water flow is used to flush the alloy copper tube to improve the dispersion effect of copper ions. The copper ions are dispersed on the outside of the net body to inhibit the growth of shellfish and reduce the attachment of shellfish on the outside of the net body. At the same time, the flushing buffer release column is used to accelerate the dispersion of the inhibitor on its outer side to reduce the reproduction of other animals and plants on the outside of the net body, thereby reducing the blockage and pollution on the net surface caused by the attachment of underwater animals and plants, and the comprehensive anti-fouling effect is good.

[0022] (2) The present invention utilizes the movement of the compression action member in conjunction with the connecting rod fixedly connected on the outside. When performing the above-mentioned reciprocating spraying treatment, the connecting rods on both sides are synchronously driven to move. As the connecting rods reciprocate, the connecting rods drive a section of fixed mesh to shake. In conjunction with the multiple groups of connecting rods distributed in a surrounding manner, the mesh is actively shaken at various locations on the outside of the mesh, and various pollutants attached to the outer side of the mesh are directly shaken off. On the one hand, non-biological debris on the surface is shaken off, and on the other hand, biological attachment on the surface is directly reduced. No additional power is required to achieve two-way anti-fouling treatment.

[0023] (3) The present invention reuses the compression action member, the anti-fouling guide part and the composite anti-fouling component, and utilizes the heating tube in the anti-fouling guide part to achieve heating of the sucked seawater and spraying of the hot seawater during the reciprocating time of the compression action member's suction and compression. At the same time, the support frame mechanism and the solenoid valve are coordinated, and an external liquid pump is used to quickly pass the external cooling water into the composite anti-fouling component and spray it out, thereby achieving continuous and rapid pumping of the liquid and spraying out of the cold water with incomplete heat exchange, thereby achieving alternating spraying of hot and cold water on the outside of the net body, utilizing the temperature difference of the seawater to interfere with the attachment and reproduction of organisms on the outside of the net body, reducing the venom and pollution of the net body caused by the attachment and reproduction of animals and plants, and further improving the anti-fouling protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 It is a cross-sectional schematic diagram of the present invention;

[0026] Figure 3 It is a schematic diagram of the connection between the composite anti-fouling component and the anti-fouling guide part of the present invention;

[0027] Figure 4 It is an exploded schematic diagram of the anti-fouling guide part and the compression action part of the present invention;

[0028] Figure 5 It is a cross-sectional schematic diagram of the anti-fouling guide portion of the present invention;

[0029] Figure 6 is a cross-sectional schematic diagram of the support frame mechanism of the present invention;

[0030] Figure 7 It is a schematic diagram of the composite anti-fouling component of the present invention.

[0031] In the figure: 1. mesh body; 2. support frame mechanism; 21. support ring; 22. bottom hole; 23. ring cavity; 3. anti-fouling guide part; 31. mounting seat; 32. auxiliary frame; 33. internal cavity; 34. connecting hole; 35. compression cavity; 36. side hole; 37. filling groove; 4. compression action member; 41. cross plate; 42. connecting rod; 43. compression block; 44. sealing outer ring; 45. electric push rod; 5. composite anti-fouling component; 51. alloy copper tube; 52. spray hole one; 53. buffer release column; 54. spray hole two; 55. spray hole three; 6. connecting pull rod; 7. installation through hole; 8. solenoid valve. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figures 1 to 7 As shown, an embodiment of the present invention provides an anti-fouling net structure of a marine aquaculture cage and a protection method thereof, comprising a net body 1, a support frame mechanism 2 is fixedly connected to the top of the net body 1, the net body 1 comprises a collective net and an anti-fouling coating, an anti-fouling guide part 3 is fixedly connected to the bottom of the support frame mechanism 2, the anti-fouling guide parts 3 are evenly distributed around the outside of the net body 1 and are fixedly connected to the net body 1, a compression action part 4 is provided on the outer side of the anti-fouling guide part 3, and a composite anti-fouling component 5 is symmetrically connected on both sides of the anti-fouling guide part 3, and the composite anti-fouling component 5 comprises an alloy copper tube 51, a spray hole 1 52, a buffer release column 53, a spray hole 2 54 and a spray hole 3 55.

[0034] Embodiment 1: The net body 1 is immersed in seawater. Under the flow of seawater, the anti-fouling coating on the outer side of the net body 1 releases copper ions, the compression action member 4 is started, and the electric push rod 45 pushes the horizontal plate 41 to move, and drives the compression block 43 to move. As the compression block 43 moves along the compression chamber 35 and the inside of the auxiliary frame 32, the compression chamber 35 and the inner chamber 33 are gradually sucked in and filled with seawater through the replenishing groove 37 and the composite anti-fouling component 5, and the compression action member 4 is immediately reset and compressed, and the compression block 43 quickly squeezes the compression chamber 35, and the compression chamber 35 passes through the anti-fouling guide part. 3. Quickly press the seawater into the composite anti-fouling component 5, and spray it out along the spray hole 1 52 at an angle, and flush the net body 1 along the outer side of the net body 1, and another part of the compressed seawater flushes the buffer release column 53 along the water flow sprayed from the spray hole 2 54, and flushes the inhibitor to the outer area of ​​the net body 1. At the same time, the spray hole 3 55 sprays water to the outside of the net body 1, resets the compression action member 4 and performs reciprocating processing. With the reciprocating movement of the compression action member 4, the connecting rod 6 is synchronously driven to reciprocate and pull the outer side of the net body 1, so that the net body 1 vibrates at various locations.

[0035] Firstly, by utilizing the anti-fouling guide part 3, the compression action part 4 and the composite anti-fouling component 5, in actual use, the compression action part 4 can be actively started, and the seawater can be sucked in and compressed and sprayed out through the effects of repeated suction and compression. In conjunction with the alloy copper tube 51, the spray hole 1 52 and the buffer release column 53 in the composite anti-fouling component 5, on the one hand, the water flow ejected by extrusion is used to perform repeated hydraulic impact along the outer side of the net body to avoid the attachment of animals and plants and achieve anti-fouling treatment. On the other hand, the compressed flowing water flow is used to flush the alloy copper tube to improve the dispersion effect of copper ions. The copper ions are dispersed on the outside of the net body 1 to inhibit the growth of shellfish and reduce the attachment of shellfish on the outside of the net body 1. At the same time, the flushing buffer release column 53 is used to accelerate the dispersion of the inhibitor on its outer side to reduce the reproduction of other animals and plants on the outside of the net body 1, thereby reducing the blockage and pollution caused by the attachment of underwater animals and plants on the surface of the net body 1, and the comprehensive anti-fouling effect is good.

[0036] In addition, by utilizing the moving action of the compression action part 4 and cooperating with the connecting rod 6 fixedly connected on the outside, when the above-mentioned reciprocating spraying treatment is carried out, the connecting rods 6 on both sides are synchronously driven to move. As the connecting rod 6 moves back and forth, the connecting rod 6 drives a section of fixed mesh 1 to shake, and cooperates with the multiple groups of connecting rods 6 distributed in a surrounding manner to actively realize the shaking of the mesh 1 at various locations on the outside of the mesh 1, and directly shake off various pollutants attached to the outer side of the mesh 1. On the one hand, non-biological debris on the surface is shaken off, and on the other hand, the biological attachment on the surface is directly reduced. No additional power is provided, and two-way anti-fouling treatment can be achieved.

[0037] Embodiment 2: Start the heating tube inside the internal cavity 33 in the anti-fouling guide part 3, start the compression action part 4, as the seawater fills the internal cavity 33, and heats up with the heating tube in the internal cavity 33 to form warm seawater, the compression action part 4 is then compressed, and the heated hot seawater is ejected through the composite anti-fouling component 5, so that the hot seawater is distributed near the outer side of the net body 1, and then the external cold water input pump above the supporting frame mechanism 2 is started, and the heating tube is closed at the same time, and cold water is input into the annular cavity 23 in the supporting frame mechanism 2, and the solenoid valve 8 is kept open, so that the cold water is input into the composite anti-fouling component 5 through the bottom hole 22, the mounting through hole 7, and the internal cavity 33, and is ejected near the outside of the net body 1, so that the shellfish attached to the outside of the net body 1 detach themselves due to the high and low temperature difference of the seawater.

[0038] First, by reusing the compression actuator 4, the anti-pollution diversion part 3, and the composite anti-pollution component 5, and using the heating tube in the anti-pollution diversion part 3, during the reciprocating time of the suction and compression of the compression actuator 4, the heating of the inhaled seawater is realized, and the ejection of the hot seawater is achieved. At the same time, by cooperating with the support frame mechanism 2 and the solenoid valve 8, the external cooling water is quickly introduced into the composite anti-pollution component 5 and ejected by using an external liquid pump, so as to realize the continuous and rapid pumping of liquid and the ejection of the cold water with incomplete heat exchange, thereby realizing the alternating ejection of cold and hot water on the outer side of the mesh body 1. By using the temperature difference effect of seawater, the attachment and reproduction of organisms on the outer side of the mesh body 1 are interfered, and the damage and pollution of the mesh body 1 caused by the attachment and reproduction of animals and plants are reduced, further improving the anti-pollution protection effect.

[0039] Among them, the anti-pollution diversion part 3 includes a mounting seat 31, an auxiliary frame 32, an internal cavity 33, a communication hole 34, a compression cavity 35, a side hole 36, and a replenishment groove 37. The mounting seat 31 is fixedly connected to the outer side of the mesh body 1, the auxiliary frame 32 is fixedly connected to the front of the mounting seat 31, the internal cavity 33 is opened in the mounting seat 31, the communication hole 34 is opened in the mounting seat 31, the compression cavity 35 is opened in the front of the mounting seat 31 and corresponds to the auxiliary frame 32 one by one. The two ends of the communication hole 34 are respectively communicated with the internal cavity 33 and the compression cavity 35. The side holes 36 are opened on both sides of the mounting seat 31 and are communicated with the internal cavity 33. The replenishment groove 37 is opened on the side surface of the auxiliary frame 32, and a heating tube is fixedly arranged in the internal cavity 33.

[0040] The anti-pollution diversion part 3 realizes the inhalation and storage of external seawater, and realizes the outward export and diversion. The replenishment groove 37 cooperates with the composite anti-pollution component 5 to realize the inhalation and filling of seawater at both ends. The compression cavity 35 bears the compression action of the compression block 43, and the heating tube starts heating when necessary to realize the distribution of hot seawater near the outer side of the mesh body 1 and affect the attachment of organisms by using the hot seawater.

[0041] Among them, the compression actuator 4 includes a cross plate 41, a connecting rod 42, a compression block 43, a sealing outer ring 44, and an electric push rod 45. The compression block 43 is movably sleeved in the auxiliary frame 32. The connecting rod 42 is fixedly connected to the end face of the compression block 43. The other end of the connecting rod 42 is fixedly connected to the cross plate 41. The sealing outer ring 44 is fixedly nested on the outer side surface of the compression block 43. The electric push rod 45 is fixedly connected to the front of the mounting seat 31, and the movable end is fixedly connected to the cross plate 41.

[0042] The compression actuator 4 realizes reciprocating movement and provides compression and ejection power. The sealing outer ring 44 realizes dynamic sealing to avoid leakage during compression and extrusion.

[0043] Among them, the first ejection holes 52 are symmetrically opened on the upper and lower sides of the outer surface of the alloy copper tube 51 and are inclined. The third ejection holes 55 are opened at the end face of the alloy copper tube 51. The alloy copper tube 51 is fixed to the side of the mounting seat 31 and is communicated with the side hole 36.

[0044] By spraying obliquely on both sides of the spray hole 52, the outer side of the mesh 1 is sprayed and cleaned, and at the same time, the copper ions released in the alloy copper tube 51 are dispersed. The copper ions can effectively kill or inhibit the formation of bacteria and microbial films on the surface of the mesh, blocking the initial stage of biological attachment (biofilm is the prerequisite for the attachment of large-scale fouling organisms).

[0045] Among them, the second ejection hole 54 is opened on the front side of the outer side of the alloy copper tube 51, one end of the buffer release column 53 is fixedly connected to the inside of the alloy copper tube 51, and the other end is sleeved in the second ejection hole 54, and an annular gap is provided between the second ejection hole 54 and the buffer release column 53.

[0046] The second ejection hole 54 cooperates with the buffer release column 53 to achieve rapid dispersion of the bio-inhibitor and act on the outer area of ​​the mesh body 1.

[0047] The surface of the buffer release column 53 is embedded with a biological inhibitor, which includes one or any of capsaicin and isothiazolinone.

[0048] Capsaicin and isothiazolinone are used to inhibit the reproduction and attachment of organisms on the outside of the net 1. By stimulating the nerve endings of fouling organisms, pain and discomfort are induced, and their larvae are driven away from the surface of the net. The attachment behavior of barnacle larvae is significantly interfered with, making it impossible for them to complete the metamorphosis and attachment stage.

[0049] The anti-fouling coating includes one or any one of a silicon-based coating and a copper powder coating.

[0050] The silicon-based coating reduces biofouling by physical repulsion, while the copper powder coating kills larvae by chemical inhibition, and the two complement each other to cover different stages of fouling organisms.

[0051] Among them, a mounting through hole 7 is opened on the top of the mounting seat 31, and a solenoid valve 8 is provided at the lower end of the mounting through hole 7. The mounting through hole 7 is connected to the internal cavity 33. When the solenoid valve 8 is turned on, the internal cavity 33 is connected to the support frame mechanism 2 through the mounting through hole 7. The support frame mechanism 2 includes a support ring 21, a bottom hole 22 and an annular cavity 23. The bottom hole 22 is opened at the bottom of the support ring 21 and is connected to the mounting through hole 7. The annular cavity 23 is opened inside the support ring 21 and is connected to the bottom hole 22. The bottom of the support ring 21 is fixedly connected to the mesh body 1 and the mounting seat 31, and an inlet hole is opened at the top of the support ring 21.

[0052] The inlet hole is used for external cold water input, and cooperates with the closed heating tube to realize continuous cold water input. When the heating tube is turned on, the compression action member 4 and the anti-fouling guide part 3 are used to fully heat the local seawater in the internal cavity 33 during the suction and compression time period to achieve stable injection of hot seawater. In conjunction with the alternating treatment of hot and cold seawater, the outside of the net body 1 is further lowered, and the temperature difference is used to cause the attached organisms to fall off (shellfish are sensitive to temperature).

[0053] Wherein, connecting rods 6 are fixedly connected to both sides of the transverse plate 41 , and the other end of the connecting rods 6 is fixedly connected to the outer side surface of the net body 1 .

[0054] The connecting rod 6 is used to cooperate with the reciprocating movement of the horizontal plate 41 to realize the vibration pulling of the net body 1, realize dynamic interference, and realize autonomous separation from the surface pollutants.

[0055] A method for an anti-fouling net structure of a marine aquaculture cage, comprising the following protection steps:

[0056] Step 1: immerse the net body 1 in seawater. Under the flow of seawater, the anti-fouling coating on the outer side of the net body 1 releases copper ions;

[0057] Step 2: Start the compression action member 4 and move it outward first, so that the seawater flows and fills the anti-fouling guide part 3, and the compression action member 4 is immediately reset and compressed, so that the seawater in the anti-fouling guide part 3 is quickly pressed into the composite anti-fouling component 5;

[0058] Step 3: The water flow squeezed into the composite anti-fouling component 5 is sprayed out along the spray hole 1 52 at an angle, and washes the mesh body 1 along the outer side of the mesh body 1. The water flow sprayed along the spray hole 2 54 washes the buffer release column 53 and washes the inhibitor to the outer area of ​​the mesh body 1. At the same time, the spray hole 3 55 sprays water flow to the outer side of the mesh body 1, resets the compression action member 4 and performs reciprocating processing;

[0059] Step 4: With the reciprocating movement of the compression action member 4, the connecting rod 6 is synchronously driven to reciprocate and pull the outer side of the net body 1, so that various parts of the net body 1 vibrate.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A marine aquaculture cage anti-fouling net structure, comprising a net body (1), characterized in that: The top of the net body (1) is fixedly connected to a support frame mechanism (2), the net body (1) comprises a collective net and an anti-fouling coating, the bottom of the support frame mechanism (2) is fixedly connected to an anti-fouling guide portion (3), the anti-fouling guide portions (3) are distributed around the outside of the net body (1) at equal intervals and are fixedly connected to the net body (1), the outer side surface of the anti-fouling guide portion (3) is provided with a compression action member (4), and the two sides of the anti-fouling guide portion (3) are symmetrically connected to a composite anti-fouling component (5), The composite anti-fouling component (5) comprises an alloy copper tube (51), a first ejection hole (52), a buffer release column (53), a second ejection hole (54) and a third ejection hole (55).

2. The anti-fouling net structure of a marine aquaculture cage according to claim 1, characterized in that: The anti-fouling guide part (3) comprises a mounting seat (31), an auxiliary frame (32), an internal cavity (33), a connecting hole (34), a compression cavity (35), a side hole (36) and a replenishing groove (37); the mounting seat (31) is fixedly connected to the outer side of the net body (1); the auxiliary frame (32) is fixedly connected to the front side of the mounting seat (31); the internal cavity (33) is arranged inside the mounting seat (31); the connecting hole (34) is arranged inside the mounting seat (31); the compression cavity (35) is arranged on the front side of the mounting seat (31) and corresponds to the auxiliary frame (32); the two ends of the connecting hole (34) are respectively connected to the internal cavity (33) and the compression cavity (35); the side hole (36) is arranged on both sides of the mounting seat (31) and is connected to the internal cavity (33); the replenishing groove (37) is arranged on the side of the auxiliary frame (32); and a heating pipe is fixedly arranged in the internal cavity (33).

3. The anti-fouling net structure of a marine aquaculture cage according to claim 2, characterized in that: The compression action member (4) comprises a transverse plate (41), a connecting rod (42), a compression block (43), a sealing outer ring (44) and an electric push rod (45); the compression block (43) is movably sleeved in the auxiliary frame (32); the connecting rod (42) is fixedly connected to the end face of the compression block (43); the other end of the connecting rod (42) is fixedly connected to the transverse plate (41); the sealing outer ring (44) is fixedly nested on the outer side face of the compression block (43); the electric push rod (45) is fixedly connected to the front face of the mounting seat (31), and the movable end is fixedly connected to the transverse plate (41).

4. The anti-fouling net structure of a marine aquaculture cage according to claim 3, characterized in that: The first ejection hole (52) is symmetrically opened on the upper and lower sides of the outer surface of the alloy copper tube (51) and is kept inclined. The third ejection hole (55) is opened on the end surface of the alloy copper tube (51). The alloy copper tube (51) is fixed on the side of the mounting seat (31) and is connected to the side hole (36).

5. The anti-fouling net structure of a marine aquaculture cage according to claim 4, characterized in that: The second ejection hole (54) is opened on the front side of the outer side of the alloy copper tube (51); one end of the buffer release column (53) is fixedly connected to the inside of the alloy copper tube (51), and the other end is sleeved in the second ejection hole (54); an annular gap is provided between the second ejection hole (54) and the buffer release column (53).

6. The anti-fouling net structure of a marine aquaculture cage according to claim 5, characterized in that: The surface of the buffer release column (53) is embedded with a biological inhibitor, and the biological inhibitor includes one or any one of capsaicin and isothiazolinone.

7. The anti-fouling net structure of a marine aquaculture cage according to claim 1, characterized in that: The anti-fouling coating includes one or any one of a silicon-based coating and a copper powder coating.

8. The anti-fouling net structure of a marine aquaculture cage according to claim 2, characterized in that: A mounting through hole (7) is provided at the top of the mounting seat (31), a solenoid valve (8) is provided at the lower end of the mounting through hole (7), the mounting through hole (7) is communicated with the internal cavity (33), when the solenoid valve (8) is turned on, the internal cavity (33) is communicated with the support frame mechanism (2) through the mounting through hole (7), the support frame mechanism (2) comprises a support ring (21), a bottom hole (22) and an annular cavity (23), the bottom hole (22) is provided at the bottom of the support ring (21) and is communicated with the mounting through hole (7), the annular cavity (23) is provided inside the support ring (21) and is communicated with the bottom hole (22), the bottom of the support ring (21) is fixedly connected to the mesh body (1) and the mounting seat (31), the top of the support ring (21) is provided with an inlet hole.

9. The anti-fouling net structure of a marine aquaculture cage according to claim 3, characterized in that: Connecting rods (6) are fixedly connected to both sides of the transverse plate (41), and the other end of the connecting rod (6) is fixedly connected to the outer side surface of the net body (1).

10. A method for anti-fouling net structure of a marine aquaculture cage according to any one of claims 1 to 9, characterized in that: The following protective steps are included: The first step is to immerse the mesh (1) in seawater, and the anti-fouling coating on the outer side of the mesh (1) releases copper ions under the flow of seawater; Step 2: The compression action member (4) is started and moves outward first, so that the seawater flows and fills the anti-fouling guide part (3), and the compression action member (4) is immediately reset and compressed, so that the seawater in the anti-fouling guide part (3) is quickly pressed into the composite anti-fouling component (5); Step 3: The water flow squeezed into the composite anti-fouling component (5) is sprayed out along the first spray hole (52) at an angle, and flushes the mesh body (1) along the outer side surface of the mesh body (1). The water flow sprayed along the second spray hole (54) flushes the buffer release column (53) and flushes the inhibitor to the outer area of ​​the mesh body (1). At the same time, the third spray hole (55) sprays water flow to the outer side of the mesh body (1), resets the compression action member (4) and performs a reciprocating process. Step 4: As the compression action member (4) moves back and forth, the connecting rod (6) is synchronously driven to pull the outer side of the net body (1) back and forth, causing the net body (1) to vibrate at various locations.

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