KR200455137Y1 - Installation structure of cage net cage - Google Patents

Abstract

The present invention relates to an offshore cage fish farm.

Marine cage farming suffers huge losses when red tide occurs due to the lack of proper methods or facilities to isolate the fish from the red tide, or the damage to the cages caused by the rough waves. When red tide occurs, it sprays red sea on the nearby sea to reduce the damage of red tide, but there is no suitable alternative except waiting for the red tide to survive by itself. Also, cages are always exposed to rough waves, but there are no facilities or methods to protect them. In addition, the red tide floats in a large amount in the surface layer of 1 to 2 m, making the surface layer into an oxygen-free red tide layer.

Cage cages can block nets to prevent fish from reaching the red tides. The cage can be submerged in water to prevent the killing of farmed fish. It also protects the cage from strong waves and can prevent the loss of fish.

Cage cage is designed to secure strong structural strength by combining the properties of steel wire and the structural principle of planar lattice. The cage is protected by using a steel wire and a stainless steel strip as horizontal and vertical members, respectively, to make a large flat grid, and then to form a flat grid or circle, and to install a cage inside. Cage cages are strong in impact resistance, lightweight, and easy to assemble and install.

The cages will be a good resource to prevent the killing of farmed fish from red tide and to protect the cages from violent waves.

Red tide, red water, sea cage culture, cage net, cage cage. Seaworthiness

Description

Installation structure of cage net cages {The protection cage for farming fishes net}

Definition of terms used in the present invention is as follows.

(1) High carbon steel wire structure: A hard steel wire structure is a hard steel wire or steel bar (hereinafter referred to as steel wire) and a stainless steel strip having a small cross-sectional area and excellent physical properties. It refers to the structure of planar lattice shape. Hard steel wire structure is a structure designed to be used as a small and medium sized lightweight structure by securing structural strength by combining the structural properties of a flat grating with the strong physical properties (strength, linearity, restoring force, elasticity, hardness, etc.) . Structural strength can be adjusted according to the member's size, placement interval, and node, and there is little distortion and deflection, and the planar lattice supports and distributes the load in all directions, and adapts to vibration and elasticity when subjected to excessive impact. Will be restored. Therefore, the rigid steel wire structure can be used as a flat grid itself, or by bending a flat grid to form a cube to be used as a lightweight structure such as a bearing wall, a roof, a floor.

(2) Plane lattice: Plane lattice is a two-dimensional lattice in which steel wire is used as vertical material and stainless steel strip is fixed to steel wire as horizontal material. Plane grating is a grid made by combining the properties of steel wires and stainless steels (strength, linearity, restoring force, elasticity, hardness, etc.) and the principle of plane gratings. have. The flat lattice is fixed by pushing the steel wire into the opening of the groove of the stainless steel strip in which the omega-shaped grooves are continuously made at regular intervals (for example, 20 cm and 30 cm intervals). The planar lattice is manufactured by placing the wires in opposite directions and fixing them by pressing the steel wires at regular intervals (for example, 50 cm) into the openings of the grooves. Therefore, it is possible to make a large lattice, there is no deviation of the steel wire member, and the flat grid member, that is, the point of intersection between the steel stripe and the steel wire is a face-to-face contact, so there is no distortion. Thus, the groove is held firmly in the wire so that the steel wire stays in the inserted position without flowing or slipping. It can be used as a flat lattice of the flat lattice itself, or bent to be used as a lightweight structure such as small and medium-sized bearing walls, roofs, and floors.

(3) Stainless steel strips: Stainless steel strips are cut into thin bars (flat bars, 0.2 to 1.5 mm thick, width = 5 to 15 mm) of stainless steel (called stainless steel). It is a strip designed to fix the wire member by continuously making circular grooves of OMEGA (Ω) or an equilateral trapezoidal groove whose upper side is narrower than the lower side at regular intervals. Since the opening of the groove of the stingaro belt is made smaller than the outer diameter of the steel wire to be inserted, when the steel wire is pushed into the opening of the groove, the opening opens instantly and then returns to its original shape after the wire passes.

(4) Confinement cages: A flat grid is continuously pushed into the groove of a stainless steel strip at a regular interval to make a flat grid, and then a flat grid can be made into a cube to install a cage inside. It refers to the steel wire cage for protecting the guard net of the produced cube. The liner cage can be isolated from the red tide layer by limiting the activity of the fish to the water by striking the net in the middle of the cage under the red tide when the red tide occurs, and it is designed to sink or move if necessary. Say. Therefore, it is possible to protect the farmed fish from red tide by preventing the fish from bleeding in the oxygen-free red tide layer, and usually protects the cage from strong waves or floating matters.

(5) Support frame: A support frame is a four-sided frame made of wood, PE, or steel to suspend a cage. Marine farms are made of wood, PE, and steel with a rectangular frame of 5m * 5m (or 10m × 10m × 8m), and the cages (4.5m * 4.5m * 4.5m, 10m × 10m × 8m) are hung inside. have. In addition, the support frame is floating on the sea by a hot tub and suspended by anchors to prevent movement. The upper part of the moxibustion tank is used as the work passage.

(6) Cage nets: Square nets or round nets made of synthetic fibers of 4.5m * 4.5m * 4.5m or 10m × 10m × 8m for fish farming in the sea.

The present invention relates to a marine cage farming facility.

Cage cages use hard steel wires or steel bars (hereinafter referred to as steel wires) as longitudinal materials. Both steel products have excellent physical properties in common.

Background art is based on 1. physical properties of steel wire, 2. physical properties of stainless steel, 3. fabrication of curb cage, and 4. red tide. Numbers in parentheses are reference signs

1. Physical properties of steel wire

Hard steel wires and steel rods have a small cross-sectional area and are excellent in linearity, restoring force, elasticity, hardness, etc., and have no bending or wave of the line, and have tensile strength. It also has very strong physical properties. Light steel wire is used as raw material such as spring, and steel bar is used for industrial parts that need strong stress for the purpose of pressure suppression, vibration and shock mitigation, and energy accumulation with tools, bolts, rails, etc. It is a steel product used. Steel rods and light steel wires are classified by carbon content and use, but since they have similar physical properties, they will be described here as properties of light steel wires. The main physical characteristics of the hard wire and the method of use are as follows.

(1) Hard steel wire is a steel wire which is excellent in restoring force, elasticity, and linearity, and has no line bending or wave.

(2) Tensile strength is 100-150kg / mm2. Compressive strength is similar to tensile strength. Since the tensile strength of light steel wire is 100-150kg / mm2, 5mm diameter steel wire is 1,962kg-2,943kg. The 6mm diameter steel wire has a tensile stress of 2,800kg to 4,200kg and the 7mm diameter steel wire has a 3,800kg to 5,700kg.

(3) Hard wires have a hardness of 41 to 60 HRC (Rockwell hardness).

(4) Light steel wire products are classified according to carbon content, wire diameter, mechanical properties, uses, etc., and various types of products are produced and sold.

(5) Hot dip galvanizing or zinc plating can prevent rust in water.

2. Physical Properties of Stainless Steel

(1) Stainless steel (called stainless steel) is a metal having excellent strength, hardness, elasticity, abrasion resistance, corrosion resistance, oxidation resistance, durability, and rustless physical properties. It is also light and easy to cut and process, so it has good moldability.

(2) Stainless steel strips for stainless steel strips are stainless steel flat strips and are marketed as long-sleeves for use as flat springs. The thin strip of stainless steel can be cut out as needed with a thickness of 0.4 mm to 1.5 mm and a width of 5 to 15 mm.

(3) Using these excellent properties, it is processed into a stingaro strip and used as a cross member of a flat grid.

3. Production contents of cage cage

(1) Structural strength: Cage cage (Fig. 1), the steel wire and stainless steel combines the excellent physical properties (straightness, restoring force, elasticity, tensile strength, etc.) and the structural principle of the planar lattice to secure the structural strength. Planar grids are structurally safe structures. The structural strength of planar lattice can be increased or decreased depending on the size of the member and the spacing or nodal point. The cage is secured with sufficient strength to have breakage resistance.

(2) Fabrication principle: Cage cage is made of steel wire and stainless steel strip to make a flat grid (Fig. 4), and then a flat grid is formed into a cube or a circular grid to install a cage inside. The planar lattice is produced by the method of continuously fixing the steel wire to the groove (3) of the stengar strip, so that there is little warpage or deflection, and each member of the planar lattice supports the stress and is distributed in all directions. When a strong external force (wave, foreign matter) acts on the cage, the planar lattice responds with vibration and elasticity, and when the external force is removed, it returns to its original shape. If the groove of the flat lattice of the flat lattice is made smaller than the steel wire, and the steel wire is inserted into the groove by forcibly pushing it into the groove, the steel wire is fixed to the groove so that it does not fall out and forms a lattice. Since the steel wires are fabricated, structurally more stable flat grids are made without leaving the steel wires. In addition, the groove of the stainless steel strip is made by plastic deformation, so when the steel wire is inserted into the groove, it opens instantly, and after the steel wire passes through, it is restored to its original shape, and the steel wire is firmly held.

(3) Response to load: Each cage of the flat lattice distributes the load in all directions and has strong elasticity and resilience, so if it receives excessive load (impact or lateral force), it responds with vibration and elasticity and removes the load. It will be restored immediately.

(4) Structure: The cage is divided into four-sided wall (5) and floor (6) and top (7) plane grids, and is a lightweight prefabricated structure.

(5) Breakage resistance: Because cages have strong structural strength and members are thin, they have little resistance to waves, so cage cages have breakwater resistance. In addition, the cage is designed to be structure, shape, member, separation from the support frame, dynamic structure, etc. to enhance the breakage resistance.

(6) Assembly: It is manufactured in lightweight assembly type for easy assembly at sea. Plane grids on each side of the cage (e.g. 4.63m * 4.63m * 4.5m) are divided into two parts on the wall (4 sides) and the bottom (1 side), and the top plane grids are 4 sheets. Divided into make it easy to assemble. One piece (2.32m * 4.5m) weighs about 7-9kg (0.5kg / ㎡). In addition, the total weight is about 80 ~ 90kg when fully assembled. Therefore, it is easy for four adults to move, transport and assemble. In addition, when assembling fish cages (circle fish species such as mackerel) or round or large quadrangles as needed, flat grids can be rolled into one sheet for easy use and processed or assembled on site. Supply the grid.

(7) Workability: Since the members (steel wires and stainless steel strips) of the plane lattice are thin, they can be easily made by cutting with a cutter, and the openings can be reinforced with stainless steel strips again.

(8) Durability: Hard steel wire is rustproof galvanized to ensure durability.

4, red tide, red water

(1) Red tide on the south coast

Red tide occurs in the coast of the south coast, where the sea depths are shallow from spring to early summer and early autumn, causing great damage to the killing of farmed fish. In the south coast, during the rainy season, large amounts of land pollutants have flowed into the sea, causing eutrophication of seawater. Therefore, after the rainy season continues to dry properly, red tide is likely to occur.

In 1995, 65 cases occurred in coastal areas such as Tongyeong, Goseong, Geoje, and Naeman, which resulted in damage of 764 billion. In 2001, 41 cases occurred, which occur every year.

In particular, it is known that red tide appears more frequently due to an increase in water temperature caused by global environmental changes such as El Nino. In addition, due to the global warming phenomenon, it is predicted that the temperature of the water rises with the increase of the red tide.

Red tide phenomena become apparent when the multiplying organisms accumulate under the influence of currents, tides, or winds, or aggregate by the movements of the organisms themselves.

Red tide is continuously increasing not only in Korea but also worldwide, and the number of occurrences of red tide is more pronounced because seawater becomes more depleted as oxygen becomes more contaminated, scientists say.

When red tide occurs, the soil is sprayed on the sea, but it is less effective and there is no proper way to avoid red tide. Therefore, there is no pointy way other than the way to actively cope with the red tide and wait for time to live by itself.

(2) Cause and damage of our death

Red tide is 98% phytoplankton. The food-based franktone can float on the sea due to its specific gravity less than that of seawater, and because it needs photosynthesis, it inhabits large amounts of water between the surface layers of about 1m and makes the red tide layer 20. Leave your body and move along the waves, floating and living underwater. When phytoplankton is in proper breeding condition, it divides 2 or 4 times a day to multiply in large quantities and distributes in large amounts in surface layer to make red tide layer. Large amounts of phytoplankton continue to split, consuming oxygen from the surface water to deplete oxygen, creating an oxygen-free layer and forming a red tide layer.

When farmed fish circulate up and down in the water, they reach the anoxic surface layer (red tidal layer) and do not breathe oxygen for only a few seconds. Red tide passes over the cage for about an hour, during which all fish are mass mortality.

Plankton can also physically suffocate by attaching to gills of farmed fish, while the flagella algae, Cocollidium, can also poison poisonous fish to kill them. Red tide is directly responsible for the killing of farmed fish, which in turn raises the loss of fish farms, and indirectly causes secondary damages such as declining value of seafood, reduced use of sea areas, and stagnation of local economy. Human consumption of accumulated fish and shellfish may cause food poisoning, fever and intoxication.

(3) nature of red tide

1) Red tide is 98% of phytoplankton of single-cell algae, and it is very weak even if there is no movement ability.

2) The size is usually about 0.05 ~ 1mm, photosynthesis.

3) It is light in weight, so it floats in the surface layer of about 1m from the surface of the water. At night, the density becomes thin, but most of them are concentrated in the surface layer because of their lack of mobility. Therefore, most Franktons live in the surface layer. The surface layer is the part directly affected from the outside such as precipitation, evaporation, and wind in the water system such as the ocean.

4) It breeds abnormally by cell division 2-4 times a day.

5) Perishable organic pollutants, trace metals, and growth promoting substances are abundantly dissolved. If environmental conditions such as insolation, water temperature, and salinity are adequate, plankton occurs in large quantities, especially when accumulated by wind or algae. High density red tide occurs.

6) If survival conditions are not met, it is killed at once. It disappears at once due to the movement of currents caused by wind and rain accompanied by a typhoon or when the nutrient source disappears.

7) Abundance occurs in shallow sea depths near coastal cities.

(3) Countermeasures and problems when red tide occurs

1) Evacuate fish to a safe ocean in accordance with the prediction or monitoring of red tide occurrence. The best way is to move or subside the cage to isolate it from the red tide. In reality, however, aquaculture facilities cannot be evacuated and there are no facilities or methods to isolate them from red tide.

2) When it is impossible to move, it is also recommended to move the fish to a temporary land tank until the red tide disappears, but it is not practical at sea.

3) In order to isolate the farmed fish from the red tide by installing floating fences in the seas where red tide has occurred. However, because the red tide is so widely distributed, it is practically difficult to install a control fence.

4) The method used for the control of red tide is also sprayed with ocher. Loess has been regarded as the most effective, most effective, and environmentally friendly material found in many countries. In particular, it is known that aluminum in loess has an excellent effect of destroying red tide cells. The Fisheries Research and Development Agency test reports that red tide is absorbed by red soil particles and sinks, and aluminum in loess destroys red tide cells and removes about 78% of red tide after 30 minutes of ocher spray. The problem is that secondary pollution problems arise and movement and spreading are difficult.

5) In case of fresh water, chemicals such as copper sulfate (CuSO4.5H2O, copper poison) or chlorine (Cl2-disinfectant) may be administered during intake. It is because copper sulfate can kill red tide causes such as double-sided algae. However, the use of such chemical methods can cause secondary damage, which can be caused by the toxicity of copper to other organisms other than the red tide. Regulates usage and is rarely used due to efficiency and cost concerns.

(4) Red tide damage case

Scientific investigations of red tide in Korea began since the 1960s. In the 1970s, 104 red tide occurred in Jinhae Bay since the red tide was seen in the vibrating bay near Jinhae Bay in 1961. In 1995, 65 cases were incurred, causing damages of 76.4 billion won, and in 2001, 41 cases occurred in coastal areas such as Tongyeong, Goseong and Geoje.

In 1978 and 1981, however, red algae caused by coarse algae occurred, causing great damage to the farms. Since 1981, the scope of occurrence has expanded from the sea near the southern coast to all coasts such as Incheon, Ulsan, and Yeosu. Especially, since 1995, the Coclodinium red tide, which has occurred every year in the south and southeast coasts, caused massive damage to the farms.

In the United States, the venomous warphair pistil, pisteria pisis, spreads and became feared. Pisteria pisis is known to have a fatal effect on humans as well as fish and shellfish.

[Documents Searched on the Internet]

(1) Standard Design by Fish (Marine Fisheries Research Information):

http://portal.nfrdi.re.kr/bbs?id=kindplan04

(2) Red Tide: http://bric.postech.ac.kr/issue/redtide.html

(3) Ecological Bioenergy Convergence Lab:

http://plaza.snu.ac.kr/～hjjeong/Red%20Tine%20in%20Korea.htm

[Private Technology]

The marine fish farm is producing and distributing standard designs for each species at the National Fisheries Research and Development Institute. In seawater, the type of fish depends on the type of fish (large, round rockfish, flounder, perch, dome, mackerel, etc.) and the size of the net according to the growth status of the fish (fish weight). Increasingly, farming.

The structures of offshore cage farms can be divided into farms where cages are installed and work benches (used as managers, feed warehouses, and mooring sites). They are floated on the sea with a steamer (Styropol rich man), and a weight or anchor is installed on the seabed to prevent movement by connecting ropes. The farms are farming round and square cages according to their species. The square farm is made of 5m * 5m sized "ㅁ" type support frame (wood, PE, iron) on the steamer, and the cage (4.5m * 4.5m * 4.5m, 4 square) inside the "ㅁ" type. In addition, the circular farms are made of steel pipes to make a round support frame, and the cages are installed inside each farm. It is used to make a working passage with a width of 60 ~ 80cm between the support frame and the support frame on the steamer, which also acts as a buffer for the supporter against waves.

The structure of marine farms is more than 90% of the wooden type, the iron type is partially present, and there is a workbench mixed with wood.

In addition, it is sold as a wave-resistant product developed by a private company, which is limited to the floor or aisle of the workplace, and uses P.E containers with empty interiors.

Point out the problems of the current marine cage facility as follows. The parenthesis is a reference numeral.

(1) All fish are dead due to red tide.

Red tide is a large group of vegetable frankton and forms a red tide layer 20 having a thickness of 1 to 2 m. Red tide occurs on the southern coastal coast, with shallow sea depths from spring to early summer and early autumn. When the red tide comes in, you can't sink or move the cage, so you can't avoid it and wait for it to pass. If you meet the red tide, there is no countermeasure to kill all the fish or discharge them to the sea, which is very damaging.

Although the best way is to move or sink the cage leagues to safe waters when red tide occurs, there is no way to evacuate them by moving or sinking them. Therefore, we have to wait for the red tide to disappear. It is only weakening some of the red tide by sprinkling ocher in the sea.

Here are ways to protect farmed fish from red tide:

The breeding period of farmed fish is raised for 3-7 years depending on the species, and if it meets red tide at least once during this period, all of them will die. The passing time of red tide is only one to two hours, but even if the red tide is exposed to the surface of the anaerobic surface for a few seconds, hundreds of thousands of fish are dead.

In addition, the red tide has a floating life in the surface layer of about 1m due to its ecology, and because it does not have the ability to move itself, it is pushed by the waves in the surface layer, so the residence time is short in the upper part of the cage. Therefore, if the red tide is blocked for a few hours before and after the red tide passes through, it is isolated from the red tide. I can protect it. Therefore, there is a need for a method and facility to isolate fish and red tide until the red tide passes over the cage.

(2) Because of the absence of a framework or facility to protect against strong waves or external forces, the cages lose all their farmed fish when damaged.

The cage is always exposed to strong waves, but the net is made of synthetic fibers, so it is easy to be damaged by the breakage of the cage by the wave breaking force or even a small impact from the outside. Due to the loss of fish farming, we lose tens of billions of dollars every year, and the recovery cost is as much as for new farms. In addition, the guard league does not need the protection device of the guard league when the wave height is low or there is no red tide, but it is not known when the red tide or high winds will occur.

When red tide occurs, install a blocking net or settle down the net to prevent movement of the cage, and limit the range of activity below the red tide so as not to contact the surface fish (red tide). By developing cage cages that can be moved or moved, it is usual to protect cages from external forces and to develop impervious cage cages (Figure 1) that can minimize typhoon damage.

The problem to be solved is as follows.

(1) In the event of red tide, the activity range of the farmed fish in the cage net is limited to below the surface layer (2 ~ 3m) to devise a method to isolate from the anoxic surface layer (red layer). In addition, if necessary, it is possible to devise a breakwater-resistant cage (Fig. 1) that can move and sediment the cage.

(2) Cage cages usually protect against cages from impacts caused by suspended matters (damages), and they can also serve to serve as a conduit to prevent them from being damaged by waves, even when a typhoon blows or crests are high. To develop.

Designing a cage can solve the above problems. Red cages and typhoons, which may occur at any time, cause huge losses such as total loss or total loss, so caged cages would be a very beneficial protection facility.

As the cage grows, the net must be changed 4 ~ 5 times for 8 months until the spring of the next year after stocking.When the cage is developed, the net cage is installed inside to reduce the labor of installation work. You can do it.

The design principle of cage cages must be impermeable, and when red tide occurs, fish should be easily isolated from red tide in the surface layer, and if necessary, the cage cage must be settled or moved, and the installation cost must be low. It is designed on the basis of easy assembly and handling.

Solving the above problems was devised a prefabricated cage cage (Fig. 1).

The cage cage is assembled with a flat lattice to form a hexahedron to be fixed to the support frame 15 and to install the cage 17 inside.

When the red tide occurs, by installing a net in the middle of the cage league to limit the activity range of the fish in the water can be blocked from access to the anoxic red tide layer 20. In addition, because the cage is light in weight, if you install a chimney inside the cage cage can be moved to the cage when tow by the ship, and also can be settled or moved in the water if the length of the cage and the support straps are extended.

Cage cages primarily protect the nets because of the direct contact of the cages with the blockage. When a strong wave occurs, the confinement net is oriented in the direction of the wave due to the wave power of the wave. At this time, the cage is supported by the cage so that the state can be maintained and is not damaged.

The solutions to implosion and red tide introduced in cage cages are as follows.

1. Countermeasure against blast resistance

(1) Securing the strength of the cage cage (Figure 1) adopts lightweight, thin and excellent material (steel wire and stainless steel band) to reduce water resistance and to assemble a hexahedron To make the structural strength. The members of the planar lattice distribute the load in all directions and weaken the load. In addition, when an external force acts on the plane lattice, it responds with vibration and elasticity, and when the external force is removed, it is restored to its original shape. The cage is a structure with a strong structural strength that is adapted by elasticity and restoring force of the member without twisting.

(2) Dynamic structure for expansion of wave resistance: Cage cage design structure, shape, member to adapt to the strong wave, and it is connected to PE rope (2) so that cage cage and support frame (15) move independently and correspond to each other. It was devised as a dynamic structure (Fig. 9). The absence of the cage itself is so thin that the resistance to water is very low.

(3) Strengthening the structural strength of cage cages: cage cages are made with grooves of the "c" shape below the water surface (1.5m below the support frame), and the horizontal steel pipes (4) are installed on the top and bottom to reinforce the strength of cage cages. The structural strength of the structure was strengthened to protect it from the breaking force and the impact of the support frame 15. In addition, the cross steel pipe (4) is used as a support for connecting (U-bolt and P.E rope) when connected to the support frame (15).

(3) Securing the separation distance between the support frame and the cage (Fig. 9): The cage is designed to move up and down about 23m horizontally and 23cm horizontally from the support frame. The cage is kept in a constant distance from the support frame 15 by its own weight so that it can be insulated from the support frame 15 by avoiding collision with the PE rope 11 which is connected to the support frame when waves are pushed. Maintains the proper distance, so there is little impact from the waves. In addition, the cage is moved up, down, left and right according to the degree of the wave to respond. The cage and the support frame are connected to the U-bolt 10 and the P.E rope 11 so that the cage is moved up, down, left, and right.

(4) Shock absorption of waves and support frame: A buffer rubber 13 was attached to the support frame 15 to weaken the collision between the support frame 15 and the cage. In addition, because the cage and the support frame is connected to the U-bolt and P.E low, it directly absorbs the impact of the main wave force and the support frame to deliver only the minimum impact to the cage (Figure 9).

Therefore, cage cages move their structural strength, up, down, left and right. Support frame and indirect connection, buffer rubber of support frame. U-bolt and P.E rope's shock absorption, etc., acts as a structure with strong shock resistance.

2. Countermeasures against red tide

(1) The cage is designed to rise and fall about 3m up and down. Therefore, when red tide occurs, the cage that lifts the cage (see Fig. 9) above the surface of the water can prevent the fish from being approached to the oxygen-free red tide layer 20 during the application of the fish on the working passage 21. This narrow blocking net 18 is hit and then settled back underwater. The farmed fish will not be able to access the anaerobic red tide layer 20 during the time that the red tide passes, and will only circulate underwater. Therefore, farmed fish do not breathe in the anaerobic red tide layer, and it is possible to prevent the farmed fish from dead.

(2) Also, tie the upper part (opening part) of the cage league, or tie a narrow net on the upper part of the cage league, connect the four corners of the cage league with a long PE string, and then loosen the PE rope (11). The net can sink into the sea. Since the cage league is isolated from the red tide layer 20, it is possible to prevent aquaculture fish from approaching the red tide layer to prevent mass death. After the red tide disappears, the cage cage (Fig. 9) can be lifted up and installed again.

(3) The two cages are installed in the cage cage in the center, and the cage cage can be towed while floating on the water surface by loosening the P.E rope 11 connected to the support frame.

3. Other

(1) The cage must be replaced four to five times during the nine months from the stock (in August), depending on the weight of the fish. Reduce labor and labor.

(2) Because of its light weight, the fish farm can be easily assembled by itself, saving labor.

The problem solving means of a cage cage is demonstrated as a [Example] . The assembly method will be described in [Details for Implementation of the Design].

Example : Plane lattice manufacturing method of rectangular cage

In order to facilitate assembly and handling, the cage is manufactured by dividing the flat lattice on each side into two pieces according to the four-sided support frame (15) and assembled on the work bench of the site.The mackerel fish farming cage is usually circular. It is possible to manufacture a flat grid in the form of a large grid net.

Each flat lattice (FIG. 1) and the cross steel pipe (4) is manufactured and delivered at the factory, and the accessory materials are supplied to obtain a ready-made product.

The size of the support frame 15 is 5m * 5m in length, and the size of the cage is 4.5m * 4.5m * 4.5m in depth. Therefore, the cage size should be 4.63m wide * 4.63m long * 4.5m deep. The cage is exposed 50cm high above sea level and 4m submerged.

Here, the cage is made of hexagonal cubes (4.63m in width * 4.63m in height * 4.5m in height). The steel wire for plane lattice (Fig. 5, Fig. 6, Fig. 7) uses a diameter of 5mm, the spacing is 15.5cm, the spacing of the stainless steel strip (2) is arranged at 45cm intervals. In the case of manufacturing substantially, the planar lattice (FIG. 1) is manufactured by selecting the standard of the member after confirming the structure.

The cage is manufactured according to the following manufacturing procedure. Cages cages information consists of a six-sided to the wall plane grid for, for the floor, the top shape, a wall for Chapter 8, chapter 2 for the floor, is for the top, so assembled as four sheets of planar lattice EXAMPLES In Explain how to make only one piece each.

1.Flat grid for wall (2.325m * 4.5m / sheet, 4 sides assembled into 8 sheets)

(1) The 13 plates are cut into 4.7m of steel wire length by the absence of a planar lattice for wall (Fig. 4). 4.7m in length will be used with 4.5m of cage height and 20cm (3 places) of bending area.

(2) Bending each side of the "c" shape of 5 cm in 1.5 m position at the top of the steel wire member. This "c" -shaped bending part is installed toward the outside when assembling the flat grid for the wall, with the steel wire member on the inner side and the steel pipe (4 pipe) rail stand (4) installed up and down on the support frame (15). Will be connected with

(3) Both ends of the hard wire member are bent at 90 degrees with 5 cm in the direction of the opening of the letter "c". The bent portion of this end is directed toward the inside of the cage cage (Fig. 5), the bottom plane lattice (Fig. 6) and the top plane lattice (Fig. 7) is raised, it will be used as a part of the hog ring.

(4) Twelve (3) stainless steel strips (2.5m in length) are made of stainless steel flat wires (thickness 0.4t, width 0.5cm) and 16 grooves (3) spaced 15.5cm apart by a separate special machine. ).

(5) The steel wire member is inserted in turn with the opening of the groove of the stainless steel strip at the end of the "a" shape of the upper portion of the steel wire member on the worktable, and the opening of the groove 3 of the stainless steel strip is the outer side of the steel wire member. Insert the steel wire member in position with the side facing.

(6) Arrange the steel wire members on the granular surface so that the openings of the grooves of the stainless steel strips face each other in order from the top (45 cm) in order from each other (see Fig. 4), and push the steel wire members into the grooves to assemble the flat grid. Planar lattice (Fig. 4) is so that the stirrup strips are staggered from each other in both directions so that the hard wire does not fall out and twisting is prevented. (In this case, the manual process is described, but when industrialized, the plane lattice is made with a separate dedicated device).

The work thus far completes the one-piece wall grid 5. In the same way, make eight remaining grids for the walls.

2. Flat grid for floor (2.3m * 4.63m / sheet, assembled into 2 sheets)

(7) One flat lattice 6 for the floor cuts 16 pieces of steel wire into 4.73m (4.63m horizontal section and 10cm bending section) (Fig. 6). Floor planar lattice for the floor (Fig. 6) does not have a bent portion of the "c" shape of the planar grid for the wall (Fig. 5) and the remaining shape (Fig. 6) is the same.

(8) Bend at 90 degrees to 5 cm from both ends (Fig. 6). The bent part 5cm is used to connect the cage with the flat lattice for wall assembly.

(9) Placement intervals of the stainless steel strip (FIG. 4) push the steel wire member so that both ends of the opening of the groove (3) of the stainless steel strip toward the outside. The stainless steel strips of the horizontal portion (4.63m) are installed so as to face each other in the direction of the grooves of the stainless steel strips at the ends in accordance with the spacing of 46 cm (Fig. 4).

(10) The rest of the stainless steel connecting strips are arranged so that the direction of the grooves continuously faces the direction of the opening of the grooves of the adjacent stainless connecting strips (Fig. 3), and the steel wire members are inserted into the grooves.

The floor lattice 6 for floors is completed by the operation so far.

3. Flat grid for upper part (1.15m * 4.63m, assembled into 4 sheets)

(11) One flat grating for the upper part (Fig. 7) bends seven steel wires of 4.63m in length.

(12) Make 11 copies of the grooves of the stengar strips with a gap of 11.5cm.

(13) The steel wire member is continuously pushed into the groove while the grooves of the stainless steel strip face each other to complete the flat grid 7.

After the planar lattice is completed, the end of the stainless steel strip is cut. .

By the work thus far, the production of the steel plate cage flat grid (for walls, lower and upper) is completed.

After bending all the steel wire members (for wall, top and bottom), hot dip galvanizing or galvanizing for rust prevention.

4. Cross steel pipe

(1) For the reinforcement and support of the planar grid for walls, two structural steel pipes of 4.6m in length shall be cut into horizontal steel pipes (Fig. 8) with steel pipes with an outer diameter of 32mm.

The cross steel pipe 4 is installed so as to face each other with the steel wire member in the upper corner portion of the groove of the flat plane grating for the wall "c".

(2) Drill one hole of the steel pipe 7.5cm away from the end to penetrate the hole of 10cm inner diameter through the hole at 31cm intervals. After the hole is made in the steel pipe, hot-dip galvanized to prevent rust. Perforated cross steel pipe is installed outside the groove of the "c" is a hole for installing the U-bolt 10 for connecting the P.E rope connected to the support frame.

By the work thus far, the flat lattice and the cross steel pipe 4 of the cage are produced.

(1) At the time of red tide, it is possible to protect the aquatic fish from death by putting a blocking net or a barrier material inside the cage net to prevent access to the surface layer of anoxic during fry.

(2) Settle or move cages to prevent fish from dying.

(3) It is possible to protect the cage from the floating matters (damages) coming in the waves, and to prevent the cage from being damaged even when a typhoon blows or waves rise.

(4) It is easy to replace the cage.

(5) Cage cages are inexpensive and easy to handle and install.

(6) It can be used semi-permanently to protect the cage.

(7) Depending on the species, the width and depth can be freely produced and installed.

When the cage cage (4.63m * 4.63m * 4.5m) of the present invention is installed, the positional relationship and the mutual coupling relationship of the material combination are as follows.

Plane gratings are divided into three types of cages for walls (5), floor (6), and top (7). The wall planar grid (2.31m * 4.63m) consists of 8 sheets, the floor planar grid (2.31m * 4.63m) consists of 2 sheets, and the top planar grid (1.15m * 4.63m) consists of 4 sheets.

(1) Wall lattice: The wall lattice for wall (5) is made of 2.4m * 4.63m in size and has a "c" type bending part at the upper middle of the lattice. The steel wire members are arranged at intervals of 15.5 cm, and the stainless steel strips 2 are arranged at intervals of 46 cm to form a flat lattice. When the two flat grids are placed side by side, the steel wire members meet, and when the steel wire members face each other and are connected at 30cm intervals (16 places) with a hog ring, a flat grid (width of 4.63m) is made on one side. Again, connect 8 sheets of flat lattice each, and then assemble them to 90 degrees with 2 sheets on one side to form tetrahedrons.

The "b" shaped bent portion at the end meets the lower planar lattice and the upper planar lattice to fix two steel wire members (vertical and horizontal) overlapping each other with a hog ring 9, respectively. . After fixing the lower plane grating and the bottom plane grating, a tetrahedron (Fig. 1) is created.

(2) Floor lattice for floor: The floor lattice for floors (6) is 2.4m * 4.63m in size, and there is no "c" shaped bending part of the wall lattice, and the type of wall lattice and member, arrangement spacing, The shape and assembly method are the same. Inserting the floor planar lattice into the tetrahedron assembled with the wall planar lattice, the end of the steel wire member is placed on the horizontal portion of the "b" shape of the end of the wall grid grating and overlaps the "b" shape (Fig. 9). Reference). When these overlapping parts are fixed to each other with a vertical part and a horizontal part and fixed with a hog ring, a flat grid for the floor is installed to form a tetrahedron. Floor planar lattice is installed over the lower part of wall planar lattice.

(3) Planar grid for upper part: The planar grid for upper part (7) is mounted on the wall planar grid (5) for the wall, and acts as a doorway and a lid into the cage inside the cage. The upper lattice lattice consists of 4 sheets and the size is made of 1.2m * 4.63m, and the grid is connected to each other by the hog ring (9). Two external hog rings act as a hinge when opening and closing. In the center of the four flat grids, two of the flat grids meet with the steel wire members of the flat grid and overlap the part of the flat grid with hog rings. . If necessary, a locking device may be installed.

(4) Steel pipe rail: Each side of the wall plane grid consists of two steel pipe rails (Fig. 3) (length 4.6m), one of which is continuously drilled at 31cm intervals, the other of which is not machined. It is cut without it. The steel pipe rails with holes are raised on the outside of the horizontal part of the upper part of the "c" shape, and the perforated holes are kept horizontal. The steel pipe rails without any processing are inside the "c" type grooves of the wall plane grid. The two pipes are arranged to face each other so that the lengths of the two pipe pipe rails are aligned with each other, and then the U-bolts 10 wrap the two steel pipe rails (Fig. 3) at intervals of 62 cm. Assuming that the outer diameter of the steel pipe stand is 32mm, the U-bolt uses a U-bolt of 1 and 1/4 inches in internal diameter and 2.5 inches or more in length.

(5) Connection of crossbar steel pipe and supporting frame: Steel pipe rail (Fig. 3) installed on the outside of the flat grid for the wall has a hole penetrating the center. The drilled hole penetrates the lower shank of the U-bolt (1 inch inner diameter, 3 inches long) and then tightly tightens the nut to prevent loosening. The U-bolt 10 is connected to the rope hook 14 of the support frame by hanging the P.E rope (Fig. 10).

(6) P.E Rope: P.E Rope (Fig. 10) is approximately 1.5m in length (distance between the steel pipe rail and the support frame) and is fixed with small U-bolts at both ends to form a loop. The length of the P.E rope should be a little extra length so that it can be increased or decreased depending on the distance required. One end is connected to the U-bolt (Fig. 3) of the steel pipe and the other end is connected to the hook 14 (hook) of the support.

(7) Connection of support frame and PE rope: Attach a hook to the support frame as shown in (Fig. 9) to hang or tie the loop opposite the PE rope connected to the cage. do.

(8) Shock-absorbing rubber: Cage cage can come into contact with the support frame when it is shaken by waves. At this time, a shock-absorbing rubber (13) is provided on the side of the support frame to avoid direct impact and to mitigate shock.

The assembly work will be assembled at the farm.

The following describes the assembly sequence. Materials needed to assemble cages are as follows. Excludes installation of cages.

1.Material to prepare:

(1) Plane lattice (for walls, top, bottom)

(2) Cross steel pipe (support for connecting cage reinforcement and supporting frame)

(3) Narrow nets (size: 5 m * 5 m, for red tide isolation or for cage top cover) or barriers

(4) Shock-absorbing rubber (shock cushioning rubber attached to the support frame)

(5) U-bolts (two types for binding steel pipe rails and connecting P.E ropes)

(6) Hog Rings and Straps

(7) PE rope (9mm, for supporting frame and cage cage, red tide protection net installation) and U-bolt for loop making (loop is formed at both ends according to the length of PE rope) More efficient)

(8) Stainless steel strips (for reinforcing openings).

(9) Steel cutters, ladders and other tools.

(10) hook (hook to hook P.E rope to the support frame)

(11) cages and P.E strings (strings that bind cages to cages)

2. Installation process of cage cage

(1) Arrange wall planar grids side by side so that the position and direction of the opening of the "c" part of two wall planar grids are aligned with each other, and the steel wire members are aligned with each other, and the hog ring 20 (30 cm) at intervals. ring). When two sheets are joined together, a flat lattice 5 for one wall is completed. If the height is not correct even after tightness, the length can be adjusted by lightly hitting the end of the steel wire in the butt part with a hammer. The hog ring surrounds the two wire members in a circular shape, and the wire member rotates inside the hog ring so that the height or angle can be easily adjusted. In this way, the four-sided planar grids 5 for wall (two sheets on each side) are joined together and assembled.

(2) Adjust the length of the flat lattice for wall on each side and tighten it with a hog ring every 30cm intervals, and fix it with a hog ring while setting it to 90 degrees on each side. (4.63m * 4,63m * 4, 5m) will be made.

(3) The bottom planar lattice 6 and the upper planar lattice 7 are also assembled in the same manner.

(4) As shown in Fig. 9, when the bottom plane lattice is put into the tetrahedron assembled with the wall plane lattice, the end portions of the steel wire members of the two plane lattices are placed on the horizontal portion of the end "b" of the wall plane lattice. The vertical part and the horizontal part overlap each other by 5 cm. The overlapping part, the middle part of the vertical part and the horizontal part, is fixed with a hog ring, respectively.

By the work so far, a tetrahedron is made and becomes the shape of the cage (Figure 1).

(5) Install three cushioning rubbers 13 on each side in turn at intervals of 1.5m by dividing the length of one side of the support frame into quarters.

(6) The pentagonal cage of the tetrahedron is transferred to the support frame 15, and temporarily placed on the support frame so that the wall plane lattice is immersed in sea water for about 1 m. It can be hung on the corner of the support frame by inserting a rod to penetrate the inside of the edge of the wall grid. The upper work of the cage may be performed in the work passage 21. The height can be adjusted to go up and down as needed.

(7) Insert the unprocessed steel pipe rail (Fig. 3) inside the "c" part of the wall planar grid, and place the steel pipe rails perforated outside the horizontal part of the "c" so that the holes are horizontal. Align the center and length of Bonn's steel pipe side.

(8) Tighten the two crossbars with a U-bolt (Fig. 3) every 31 cm. The four sides of the flat lattice for wall installation are installed in the same way.

(9) Install the shank of one side of the U-bolt in the hole of the cross-sectioned steel pipe, as shown in (Figure 3), and attach the loop of the PE rope to the body of the U-bolt ( hang on the shank) and tighten with nuts to prevent the U-bolts from loosening. The length of the P.E rope (Fig. 10) is about 1.5 m in the present invention, which can be adjusted according to the height of the support frame.

(10) Install a hook to hang the P.E rope (Fig. 10) on the timber (or pipe, etc.) of the support frame as shown in (Fig. 9).

By the operation so far, the cage can be settled (Fig. 1).

(11) Before sinking, the diving part of the cage is to be examined as a whole, and 3/2 of the length of the wall plane lattice is submerged in water.

(12) As shown in Fig. 9, one end of the P.E rope 11 of the cage is hanged on the hook of the support frame. After the cage is submerged in water, the height of the working passage 21 and the height of the cage are adjusted. If the height is not correct, the height is adjusted by adjusting the length of the P.E rope (Fig. 10).

This completes the assembly and installation of the cage.

It is possible to raise farmed fish by installing cages. The cage is fixed by tying it with a PE string to the steel wire at the upper part of the cage, and when the tie 22 is about 1m long at the height of 1m from the bottom, the cage is always in the shape of a cube. Will be maintained.

Also, pre-installing large net cages before submerging cages is a good way to reduce the hassle of changing nets depending on the weight of the fish.

3. Installation method of blocking net when red tide occurs,

This cage is designed to apply a narrow net (Fig. 9) or a barrier to the depth of 2-3m deep inside the cage to prevent the fish from rising to sea level when red tide occurs.

(14) Raise the cage up to the height of the working passage and tie the four sides of the barrier net (size 5m * 5m) or barrier material with small mesh at the depth (2 ~ 3m) to avoid red tide inside the cage. Secure in. The cage cage can be raised to a height of about 3 m from the work passage, so that work in the work passage 21 is sufficient.

(15) In order to sink the cage, the narrow mesh is placed on the top of the cage so that there is no gap between the cage and the PE rope connected to the cage is removed from the hook of the support frame. 9 Settle below the sea level. After the red tide has passed, lift it back up to restore it.

(16) If the cage is to be towed, a narrow net is placed on the upper part of the cage, and a tong is inserted into the cage to prevent it from sinking.

[Drawing Types]

1: Perspective view of rectangular cage

Figure 2: A perspective view of a circular cage

Figure 3: Perspective view of the steel pipe rail

4: Perspective view of the plane lattice

5: Steel wire shape diagram of planar grid for wall

6: Steel wire shape diagram of floor lattice

7: Steel wire shape diagram of planar grid for upper part

Figure 8: Coupling of steel pipe rail and U-bolt

Fig. 9: A cross-section of the net narrow barrier net and cage cage to block access to the red tide layer

Fig. 10: Shape of P.E Rope

[Description of Signs of Main Parts of Drawing]

1: steel wire (longitudinal material of flat lattice)

2: stainless steel strip (cross section of flat lattice)

3: Omega (Ω) groove of the stingaro strip

4: Steel pipe rail (support for cage cage reinforcement and P.E rope)

5: wall lattice

6: floor lattice

7: Flat grid for upper part

8: opening of upper planar lattice

9: hog ring

10: U-bolt

11: P.E rope (for connecting cage and support frame)

12: loop of P.E rope

13: cushioning rubber (shock-absorbing rubber attached to the support frame)

14: P.E rope hook of support frame

15: support frame

16: moxibustion

17: cage

18: Narrow netting to isolate fish from anoxic red tides

19: sea level

20: red tide layer

21: work path

22: weight

Claims (1)

On the outside of the cage net of fish farm A stainless steel strip (3) in which a horizontal groove in which a stainless steel wire is rolled is continuously formed at regular intervals with circular grooves in which an open portion of an omega-shaped circular groove is opened smaller than the diameter of a circle; Multiple steel wires or rods inside the circular groove of the stainless steel connecting strip: Grid-shaped mesh including a plurality of stainless connecting strips as a cross member and a plurality of steel wires or rods as a vertical member, including: A cage net cage characterized by a structure in which a lattice-shaped net constitutes a facets on the outside of the cage net.

Images