CN101715744A - HDPE self-tension flat bottom lift type anti-current net cage system and control method - Google Patents

Abstract

The invention discloses an HDPE self-tension flat bottom lift type anti-current net cage system and a control method, and relates to the field of seawater net cage culture facilities. The system consists of a spherical net cage main frame (1) constructed by HDPE pipes, a high-strength pulling rope (2) for fishing, a central gravity netsuke self-balancing device (3), a mesh (4), an HDPE pipe exhausting and inflating port (5) of, a high-strength exhaust and inflation flexible pipe (6) and an HDPE inlet and outlet pipe mouth (7). The system has the advantages of reasonable design principle, concise and feasible structure, low manufacturing cost, easy operation, good anti-current performance of the net cage structural system, large underwater culture platform, multilayer three-dimensional culture, space saving, and improvement on benefit, can sink to water bottom or stay in different water layers, is flexible and mobile, can avoid the attack of typhoon and red tides, can culture different kinds of fish, and has wide application range.

Description

A HDPE self-tensioning flat-bottom lifting type flow-resistant cage system and control method

Technical field:

The invention relates to the field of seawater net cage culture facilities, in particular to a HDPE self-tensioning flat-bottom lifting type flow-resistant net cage system and a control method.

Background technique:

With the rapid development of deep-water anti-wind and wave cage facilities and supporting technologies, the core lifting technology of deep-water elevating cages must not only have the function of resisting strong storm attacks and avoiding red tide disasters, but also use its characteristics of sinking into the seabed to provide The breeding of flounder and flounder creates a suitable ecological environment close to the seabed; therefore, the research focus of deep-water cages is gradually shifting from improving the anti-wave performance and current resistance to the direction of multi-ecological special cages suitable for breeding different species of fish develop.

In recent years, there has been an upsurge in the breeding of flounder in the northern coastal areas of my country, and it has been fully developed in the form of cage culture, cage north-south relay culture, industrialization and cage relay culture, and the economic benefits are quite substantial. There is no report on the multi-functional high-tech special net cages used for the cultivation of flounder and flounder at home and abroad. Most of the domestic cages used for the cultivation of flounder and flounder are 5m×5m wooden traditional floating raft-type small cages. The characteristic is that a steel bottom frame is set at the bottom of the net, and the bottom of the net is tightened on the bottom frame to form a relatively flat habitat platform for flounder and plaice. However, the wooden traditional floating raft small net cage has poor wind and wave resistance. The steel structure bottom frame should not be too large due to weight and deformation restrictions, and the net cage cannot be lifted. When encountering strong wind and waves, it is easy to cause damage to the net cage and run fish , causing great economic losses to farmers, so it is inevitable to develop a lift-type anti-wind and wave cage with a large net bottom habitat platform area and suitable for the breeding environment of flounder and plaice.

According to the living habits of flounder and flounder fish, which are especially suitable for living on the sandy seabed in shallow seas, the structure requires that the net bottom is relatively flat, the environment is relatively stable, the net bottom platform has a large area, and the breeding water depth It should not be too shallow, and it is best to have the effect of lifting and adjusting the water depth.

Invention content:

The object of the present invention is to provide a HDPE self-tensioning flat-bottom lift-type current-resistant cage system and its control method, which can be used not only for breeding flounder and flounder, but also for other swimming fish. It can be divided into multi-layer and large-area underwater culture platforms for flounder and flounder to inhabit, which increases the space utilization rate of the net cage, improves the culture output and economic benefits of the net cage, and has extensive use value and positive social benefits.

In order to solve the existing problems in the background technology, the present invention adopts the following technical solutions: it is a spherical net cage main frame 1 constructed of HDPE pipes, a high-strength fishing pull rope 2, and a central gravity plummet self-balancing device 3 , Net clothes 4, HDPE pipe row inflation port 5, high-strength row inflation hose 6, HDPE inlet and discharge pipe port 7; HDPE pipe spherical main frame 1, high-strength fishing rope 2, center gravity pendulum self-balancing Device 3 and net clothing 4 form the main body of the cage. The HDPE pipe is welded to the tee and four-way connecting pipe fittings. Using the elastic bending self-tension of the HDPE pipe, the spherical shape formed by the high-strength fishing rope 2 is pulled together. HDPE pipe spherical main frame 1 and box bottom platform; center gravity pendent hammer self-balancing device 3. The pendent rope is suspended from the center of the spherical surface, and the rope crossing point is connected through the net bottom plane, and the gravity of the pendent hammer is used to act on the cage. The cross-connected ropes on the bottom keep the cage as a whole in a balanced state; according to the height of the cage lifting and discharging, design the length of the supporting pipe legs below the bottom of the HDPE cage to control the water outlet height of the entire cage; the spherical shape Cage frame 1, net clothing 4 is arranged in layers according to needs and carries out three-dimensional cultivation.

The HDPE pipe row inflation port 5, the high-strength row inflation hose 6, and the HDPE inlet and drain pipe port 7 form a lifting control system. According to the breeding needs, the exhaust or inflation of the high-strength row inflation hose 6 is controlled to realize the lifting function of the cage. .

Working principle: Use the buoyancy provided by the closed HDPE floating tube cabin in seawater to make the net cage float on the sea surface normally, open the exhaust pipe valve to release air, and adjust the relationship between the net cage buoyancy and gravity in turn, when the buoyancy is less than When the gravity of the net cage, the net cage sinks; on the contrary, inflate the exhaust pipe, the buoyancy of the floating tube cabin increases, and the net cage floats up and even partially floats out of the water; and according to the need, part of the net cage can float above the water surface . The central gravity pendent device uses the action of gravity to adjust and balance the inclination and overturning of the cage body caused by wind, wave and current.

The present invention 1. fully utilizes the material characteristics of good bending elasticity of HDPE pipes to construct a spherical breeding space frame; 2. center gravity pendent hammer self-balancing device; 3. most of the net cages can rise out of the water surface; 4. utilize HDPE to bend The self-tensioning net bottom farming platform is built without the need to set the bottom frame of the steel cage.

The invention has the following beneficial effects: reasonable design principle, simple and easy structure, low cost, easy operation, good flow resistance of the net cage structure system, large underwater culture platform, multi-layer three-dimensional culture, space saving, benefit improvement, and It can sink into the bottom of the water or stay in different water layers, be flexible and maneuverable, and can avoid the attack of typhoons and red tides. It can breed different kinds of fish and has a wide range of applications.

Description of drawings:

Fig. 1 is a side view of the present invention;

Fig. 2 is a top view of the present invention.

Detailed ways:

Referring to Fig. 1-2, this embodiment adopts the following technical solutions: it is a spherical net cage main frame 1 constructed of HDPE pipes, a high-strength fishing rope 2, a central gravity plummet self-balancing device 3, and a net. 4. HDPE pipe row inflation port 5, high-strength row inflation hose 6, HDPE inlet and drain pipe port 7; HDPE pipe spherical main frame 1, high-strength fishing rope 2, center gravity pendent hammer self-balancing device 3, The net 4 constitutes the main body of the cage, and the HDPE pipe is welded to the tee and cross connection pipe fittings, and the spherical HDPE pipe spherical surface formed by the high-strength fishing rope 2 is drawn by using the elastic bending self-tension of the HDPE pipe. The main frame 1 and the bottom platform of the box; the suspension hammer rope of the central gravity suspension hammer self-balancing device 3 is suspended from the center of the spherical surface, and passes through the crossing points of the ropes on the bottom plane of the net, and uses the gravity of the suspension hammer to act on the intersection of the bottom surface of the cage. Connect the ropes to keep the whole cage in a balanced state; design the length of the support pipe legs below the bottom of the HDPE cage according to the height of the cage’s lifting and discharging water, and control the water outlet height of the entire cage accordingly; the spherical shape of the cage frame 1. According to the needs, set the net clothes 4 in layers for three-dimensional breeding.

The HDPE pipe row inflation port 5, the high-strength row inflation hose 6, and the HDPE inlet and drain pipe port 7 form a lifting control system. According to the breeding needs, the exhaust or inflation of the high-strength row inflation hose 6 is controlled to realize the lifting function of the cage. .

Working principle: Use the buoyancy provided by the closed HDPE floating tube cabin in seawater to make the net cage float on the sea surface normally, open the exhaust pipe valve to release air, and adjust the relationship between the net cage buoyancy and gravity in turn, when the buoyancy is less than When the gravity of the net cage, the net cage sinks; on the contrary, inflate the exhaust pipe, the buoyancy of the floating tube cabin increases, and the net cage floats up and even partially floats out of the water; and according to the need, part of the net cage can float above the water surface . The central gravity pendent device uses the action of gravity to adjust and balance the inclination and overturning of the cage body caused by wind, wave and current.

The present invention 1. fully utilizes the material characteristics of good bending elasticity of HDPE pipes to construct a spherical breeding space frame; 2. center gravity pendent hammer self-balancing device; 3. most of the net cages can rise out of the water surface; 4. utilize HDPE to bend The self-tensioning net bottom farming platform is built without the need to set the bottom frame of the steel cage.

This specific embodiment utilizes the bending self-tension of the HDPE pipe to construct the main frame of the spherical net cage and the breeding platform at the bottom of the net. The self-balancing device of the center gravity pendulum ensures the balance state of the net cage. Layer or seabed, the spherical structure of the cage can improve the anti-flow deformation ability of the cage and build a multi-layered three-dimensional breeding space; the upper structure of the cage can also be raised out of the water according to the need, for cleaning the net and catching fish In addition to breeding swimming fish, it is especially suitable for cage culture of flounder and flounder.

Claims (4)

1. HDPE self-tension flat bottom lift type anti-type net cage system and control method is characterized in that sphere shape net cage main frame (1) that it is constructed by HDPE tubing, high-strength fishing form with socketing rope (2), center gravity suspending hammer self balancing device (3), etting (4), HDPE pipe inflatable and exhaust mouths (5), high strength inflatable and exhaust flexible pipe (6), HDPE intake-discharge pipe mouth (7); HDPE tubing sphere main frame (1), high-strength fishing are with socketing rope (2), center gravity suspending hammer self balancing device (3), etting (4) formation net cage main body, HDPE pipe inflatable and exhaust mouths (5), high strength inflatable and exhaust flexible pipe (6), HDPE intake-discharge pipe mouth (7) are formed lift control system, according to the exhaust and the inflation of breed demand manipulation high strength inflatable and exhaust flexible pipes (6), realize the elevating function of net cage.

2. a kind of HDPE self-tension flat bottom lift type anti-type net cage system according to claim 1 and control method, it is characterized in that HDPE tubing and threeway and the welding of four-way connecting tube, utilize that the elastic bending of HDPE tubing produces from tension force, socket breed platform at the bottom of the HDPE tubing sphere main frame (1) of spherical shape of formation and the case by high-strength fishing with socketing rope (2); Etting (4) is hung in configuration can form the cage culture space that anti-stream impacts, and by changing the design length of the following HDPE stay pipe of net bottom leg, can control the freeboard of whole net cage come-up; Can also as required the layer stereo of etting (4) layering setting carrying out left-eyed flounder be cultured.

3. a kind of HDPE self-tension flat bottom lift type anti-type net cage system according to claim 1 and control method, the suspending hammer rope that it is characterized in that its center gravity suspending hammer self balancing device (3) is hung by the sphere centre place and descends, socket the rope crosspoint by the net bottom plane, utilize the interconnection rope of the gravity effect net cage bottom surface of suspending hammer, keep net cage integral body to be in poised state all the time, adjust and the inclination of balance net cage casing wind-engaging wave flow action generation and toppling.

4. a kind of HDPE self-tension flat bottom lift type anti-type net cage system according to claim 1 and control method, the operation principle that it is characterized in that it is to utilize the HDPE of sealing to float the buoyancy that the pipe cabin provides in seawater, make net cage normally float on the sea, open the exhaust valve venting, regulate the net cage buoyancy of net cage and the relation of gravity according to this, when buoyancy during less than net cage gravity, net cage sinks; Otherwise, in blast pipe, to inflate, floating pipe cabin buoyancy increases, and net cage come-up even part emerge, and can make part net cage casing emerge above as required.

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