CN111742861A

CN111742861A - Net cage lifting device with double-system function

Info

Publication number: CN111742861A
Application number: CN202010655461.8A
Authority: CN
Inventors: 陈伟荣
Original assignee: Neptune Zhoushan Zhejiang Blue Ocean Development Co ltd
Current assignee: Neptune Zhoushan Zhejiang Blue Ocean Development Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2020-10-09

Abstract

A cage lifting device with double system effects comprises an equipment buoy, a deck arranged above the equipment buoy, a winch arranged on the deck, and a cage connected below the equipment buoy, wherein a guide pipe is fixedly connected to the periphery of the equipment buoy, a lifting upright post is arranged in the guide pipe, the cage comprises a planar frame structure and a high-density polyethylene (HDPE) floating pipe, the planar frame structure is formed by fixedly connecting two longitudinal beams and three cross beams, an angle inclined supporting beam is arranged at the connecting part of each cross beam and each longitudinal beam, ballast tanks are arranged at two ends of each longitudinal beam, the HDPE floating pipe floats above the planar frame structure, a central frame is arranged in the cage and fixedly connected with the planar frame structure, the central frame is fixedly connected with the lower end of the lifting upright post, and the winch is fixedly connected with the central frame through a cable; the net cage is a flexible box, and the lifting motion of the net cage is cooperated with the operation of the winch system and the pressure load discharging system, so that the actual lifting of the net cage is stable and efficient.

Description

Net cage lifting device with double-system function

Technical Field

The invention relates to a net cage lifting device with double system functions.

Background

Due to environmental pollution caused by offshore culture and requirements on sustainable development, deep-sea cage culture technology gradually replaces offshore culture to occupy a leading position, deep-sea culture often encounters severe weather such as typhoons, so that some culture cages with a submerging function correspondingly appear in the market, and the lifting of the existing culture cages is generally realized in the following two ways: firstly, the adjustment of the net cage heavy buoyancy is realized through a ballast discharge mode, and particularly, the change of the buoyancy or gravity can be realized through air discharge or water discharge; secondly, the net cage is directly drawn by a driving mechanism (winch) to realize the lifting movement of the net cage within a certain depth range; the ballast discharge mode is slow in adjustment, but the net cage is stable in lifting, the driving mechanism directly pulls and drives the net cage to lift, the adjustment is rapid, but the required traction force is large, particularly in a large-scale sea net cage, the traction force of a single winch can reach more than 50t, and the integral winch system is huge in equipment, high in investment cost and inconvenient in later maintenance.

Disclosure of Invention

Aiming at the defects in the problems, the invention provides a net cage lifting device with double system functions.

In order to achieve the purpose, the invention provides a net cage lifting device with double system functions, which comprises a device buoy with reserve buoyancy, a plurality of layers of decks arranged above the device buoy, a winch arranged on one of the decks, and a net cage connected below the device buoy, wherein a guide pipe is fixedly connected to the periphery of the device buoy, a lifting upright post which slides relatively is arranged in the guide pipe, the net cage comprises a plane frame structure and an HDPE floating pipe, the plane frame structure is rectangular and is formed by fixedly connecting two longitudinal beams and three cross beams, the connecting part of the cross beams and the longitudinal beams is provided with an angle bracing beam, two ends of the longitudinal beams are provided with ballast tanks, the shape of the HDPE floating pipe is consistent with that of the plane frame structure and floats above the plane frame structure, a central frame is arranged inside the net cage, the central frame is fixedly connected with the plane frame structure through a connecting truss girder, the central frame is fixedly connected with the lower end of the lifting upright column, and the winch is fixedly connected with the central frame through a cable;

the net cage is a flexible box, the lifting motion of the net cage can be realized by direct traction of a winch or by adjustment of the ballast water amount in the ballast tank, and certainly, the net cage can also be operated by two systems in a cooperative mode, so that the actual lifting of the net cage is stable and efficient.

Preferably, three lock pins are uniformly arranged in the guide pipe, and the guide pipe can be fixedly connected with the lifting upright post by plugging and unplugging the lock pins;

in the technical scheme, after the position of the net cage is adjusted, the floating barrel of the device is fixed on the lifting upright post by locking the locking pin, so that the overall design appearance of the net cage is maintained.

Preferably, a weight is arranged at the bottom of the net cage;

in the technical scheme, the shape of the net cage and the culture water body are maintained by the weight at the bottom of the net cage.

Preferably, the central frame is square, the winches are four, and four cables are connected to four end positions of the central frame;

in the technical scheme, the four winches synchronously move to drive the central frame to stably move up and down, so that the net cage can move up and down.

Preferably, the ballast tank is connected with a ballast pump through a pipeline, the ballast pump is installed on one deck, an electromagnetic valve is installed on the pipeline, and water injection and drainage of the ballast tank are realized by controlling the opening and closing of the electromagnetic valve;

in the technical scheme, water injection and drainage of the ballast tank can be completed on the deck, so that remote control is realized, and the ballast tank is very convenient.

Compared with the prior art, the invention has the beneficial effects that: the lifting motion of the existing net cage is realized by the operation of a single system, usually in two modes of ballast discharge or winch traction, the scheme combines the two systems into one lifting device, so that one system or the two systems can be selected to cooperatively operate in the actual lifting process of the net cage, the purpose of stable and efficient lifting of the net cage is achieved, and meanwhile, the device is very reasonable in arrangement by the optimization of the structure.

Drawings

FIG. 1 is a front view of a dual system cage riser assembly of the present invention;

FIG. 2 is a top view of a dual system cage riser assembly of the present invention;

FIG. 3 is an enlarged view of position A of FIG. 1;

fig. 4 is an assembly view of the guide tube, lifting column and lock pin.

In the figure: 1. an equipment buoy; 2. a deck; 3. a winch; 4. a guide tube; 5. a lock pin; 6. lifting the upright post; 7. a cable; 8. a net cage; 81. HDPE floating pipes; 82. a planar frame structure; 821. a cross beam; 822. angle bracing beams; 823. a stringer; 8231. a ballast tank; 83. a center frame; 84. connecting the truss girder; 9. and a weight.

Detailed Description

As shown in fig. 1 to 4, the double-system-action net cage lifting device according to the embodiment of the present invention includes an equipment buoy 1 having a reserve buoyancy, a plurality of decks 2 disposed above the equipment buoy 1, a winch 3 disposed on one of the decks 2, and a net cage 8 connected below the equipment buoy 1, wherein a guide pipe 4 is fixedly connected to the periphery of the equipment buoy 1, a lifting column 6 sliding relatively is disposed in the guide pipe 4, the net cage 8 includes a planar frame structure 82 and a HDPE floating pipe 81 for maintaining the external shape thereof, the planar frame structure 82 is rectangular and is formed by two longitudinal beams 823 and three cross beams 821 which are fixedly connected, a connection portion between the cross beam 821 and the longitudinal beam 823 is provided with an angle brace beam 822, both ends of the longitudinal beam 823 are provided with ballast tanks 8231, the ballast tanks 8231 are connected to a ballast pump through pipe systems, the ballast pump is mounted on one of the decks 2, the pipe systems are provided with electromagnetic valves, the water injection and drainage of the ballast tank 8231 are realized by controlling the opening and closing of the electromagnetic valve, the shape of the HDPE floating pipe 81 is consistent with that of the planar frame structure 82 and floats above the planar frame structure 82, a central frame 83 is arranged inside the net cage 8, the central frame 83 is fixedly connected with the planar frame structure 82 through a connecting truss beam 84, the central frame 83 is fixedly connected with the lower end of the lifting upright post 6, and the winch 3 is fixedly connected with the central frame 83 through a cable 7; wherein, evenly be equipped with three lock pin 5 in the stand pipe 4, can realize the fixed connection of stand pipe 4 and lift stand 6 through the plug of lock pin 5, the bottom position of box with a net 8 is equipped with a pouring weight 9, and central frame 83 is squarely, and four totally winch 3 are connected at four tip positions of central frame 83, four hawsers 7.

The lifting motion of the existing net cage is realized by the operation of a single system, usually in two modes of ballast discharge or winch traction, the scheme combines the two systems into one lifting device, so that one system or the two systems can be selected to cooperatively operate in the actual lifting process of the net cage, the purpose of stable and efficient lifting of the net cage is achieved, and meanwhile, the device is very reasonable in arrangement by the optimization of the structure.

In particular use, the invention will be described with reference to the accompanying drawings for the convenience of understanding;

under the normal working state of the net cage, the net cage (except the equipment buoys) is in a gravity state (the gravity in the design water is 200 tons) by adjusting ballast water in a ballast tank of a longitudinal beam of the net cage, the two equipment buoys provide buoyancy to balance the buoyancy, and a guide pipe fixedly connected with the equipment buoys is fixed with a lifting upright post by using a lock pin, so that the design appearance of the whole net cage and the maintenance of aquaculture water are achieved.

Before lifting operation, adjusting ballast water in a ballast tank to enable the net cage (except for the equipment buoy) to be in a microgravity state (the designed microgravity is 40-50 tons), removing the fixation between the equipment buoy guide pipe and a lifting upright post (pulling out a lock pin), then starting a winch system to lift or lower the net cage (in the lifting process, the equipment buoy floats on the water surface and provides buoyancy), at the moment, the microgravity is borne by the winch system, the equipment buoy is sleeved outside the lifting upright post through the guide pipe to restrict the unstable motion of the net cage in the lifting process, and the combination of the ballast system and the winch system realizes the stable and controllable lifting of the net cage;

when the net cage moves upwards to be close to the equipment buoy, the guide sleeve and the lifting upright post are locked again through the lock pin, the ballast tank continuously discharges ballast water, the net cage continuously moves upwards, the equipment buoy and the superstructure are completely ejected out of the water surface by the net cage, and the microgravity (including the equipment buoy) of the net cage is completely balanced by the buoyancy of the ballast tank.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a box with a net elevating gear of dual system effect which characterized in that: including equipment flotation pontoon (1), setting that have reserve buoyancy multilayer deck (2) above equipment flotation pontoon (1), set up one deck wherein winch (3) on deck (2), connection are in net cage (8) of equipment flotation pontoon (1) below, the peripheral fixedly connected with stand pipe (4) of equipment flotation pontoon (1), be equipped with relative gliding lift stand (6) in stand pipe (4), net cage (8) are including being used for maintaining its external shape plane frame construction (82) and HDPE floating pipe (81), plane frame construction (82) are rectangular form, form by two longerons (823), three crossbeam (821) fixed connection, crossbeam (821) with the connecting portion of longeron (823) is equipped with angle bracing roof beam (822), the both ends of longeron (823) are equipped with ballast cabin (8231), the shape of floating pipe (81) with plane frame construction (82) keep unanimously and float flat The face frame structure (82) top, the inside of net cage (8) is equipped with central frame (83), central frame (83) with plane frame structure (82) links firmly through connecting truss roof beam (84), central frame (83) simultaneously with the lower extreme fixed connection of lift stand (6), winch (3) through hawser (7) with central frame (83) fixed connection.

2. A dual system action net cage lifting device as claimed in claim 1 wherein: evenly be equipped with three lock pin (5) in stand pipe (4), through the plug of lock pin (5) can be realized stand pipe (4) with the fixed connection of lift stand (6).

3. A dual system action net cage lifting device as claimed in claim 1 wherein: and a heavy block (9) is arranged at the bottom of the net cage (8).

4. A dual system action net cage lifting device as claimed in claim 1 wherein: the central frame (83) is square, the winches (3) are four, and the four cables (7) are connected to the four end parts of the central frame (83).

5. A dual system action net cage lifting device as claimed in claim 1 wherein: the ballast tank (8231) is connected with a ballast pump through a pipe system, the ballast pump is installed on one deck (2), an electromagnetic valve is installed on the pipe system, and water injection and drainage of the ballast tank (8231) are realized by controlling the opening and closing of the electromagnetic valve.