KR20140092067A - Transfer device for under water with buoyancy - Google Patents

Transfer device for under water with buoyancy Download PDF

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Publication number
KR20140092067A
KR20140092067A KR1020130004346A KR20130004346A KR20140092067A KR 20140092067 A KR20140092067 A KR 20140092067A KR 1020130004346 A KR1020130004346 A KR 1020130004346A KR 20130004346 A KR20130004346 A KR 20130004346A KR 20140092067 A KR20140092067 A KR 20140092067A
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KR
South Korea
Prior art keywords
buoyancy
layer
resin body
winding
inner layer
Prior art date
Application number
KR1020130004346A
Other languages
Korean (ko)
Inventor
육종현
Original Assignee
엘에스전선 주식회사
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Publication date
Application filed by 엘에스전선 주식회사 filed Critical 엘에스전선 주식회사
Priority to KR1020130004346A priority Critical patent/KR20140092067A/en
Publication of KR20140092067A publication Critical patent/KR20140092067A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H01B7/0241—Disposition of insulation comprising one or more helical wrapped layers of insulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/12—Floating cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1855—Sheaths comprising helical wrapped non-metallic layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1875—Multi-layer sheaths

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  • Laminated Bodies (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a water-moving conveying member having buoyancy, and more particularly, to a conveying member used as a cable or a pipe (hose). The present invention relates to an inner layer; A buoyancy layer formed on the inner layer by winding a resin body, the buoyancy layer being formed to provide a space filled with a gas; And an outer layer formed on the buoyancy layer. According to the present invention, there is provided a buoyancy layer for underwater buoyancy, wherein the buoyancy layer is formed at a low density by winding the resin body, and a space filled with gas such as air is provided, Buoyancy.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a water-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-borne conveying member having buoyancy, and more particularly to a conveying member used as a cable or a pipe (hose), including a buoyancy layer for buoyancy underwater, And a buoyant member having a buoyancy greater than that of the buoyant member.

In general, a cable is used to supply power or transmit / receive an electrical signal. In addition, a pipe (hose) is used for transporting various industrial fluids (liquid or gas), for example, fluids such as water, hydraulic oil and fuel gas. And, buoyancy devices are needed when the conveying members such as cables and pipes are installed in water. FIG. 1 is a view showing a structure in which a cable 2 is installed underwater through a buoyancy device 1, showing a conventional underwater installation structure.

Referring to FIG. 1, a buoyancy device 1 is provided together with a cable 2 for connecting an underwater device installed in water to an external device installed outside. The buoyancy devices (1) are arranged at appropriate intervals on the cable (2). At this time, if the buoyancy device 1 is not installed, the cable 2 will sink into the water and damage the sheath. Also, if the cable 2 is put under the water device or wound, Or the cable 2 may be cut off.

However, the installation structure as shown in Fig. 1 requires not only to connect the buoyancy device 1 to the cable 2 before installing the underwater device, but also to inconvenience in the installation work of the buoyancy device 1 and the underwater device, .

As a result, attempts have been made to provide buoyancy to a conveying member such as a cable 2 or a pipe installed in water. For example, in Japanese Patent No. 3789506 (JP Patent Publication (Kokai) No. 1996-264019), an olefinic thermoplastic elastomer and polypropylene (PP) are wrapped as a sheath, that is, A buoyancy cable with specific gravity is proposed. However, since the material of the sheath is limited, there are restrictions on further product improvement and cost reduction due to sheath material change.

Japanese Unexamined Patent Application Publication No. 2006-166524 discloses a multilayer foamed synthetic resin layer which is used by being mounted around a cable or a pipe and has a low density of the innermost layer and a high density of the outermost layer, And a density is set in a plotter (Floater). However, it has buoyancy by the multilayered foamed synthetic resin layer, but buoyancy is low compared to the size (volume or thickness) of the product.

Japanese Patent No. 3789506 Japanese Laid-Open Patent Publication No. 2006-166524

Accordingly, it is an object of the present invention to provide a water transporting member having a buoyancy that is higher than the size.

According to an aspect of the present invention,

Inner layer;

A buoyancy layer formed on the inner layer by winding a resin body, the buoyancy layer being formed to provide a space filled with a gas; And

And an outer layer formed on the buoyancy layer.

At this time, it is preferable that the buoyancy layer is formed by winding the resin body in a spiral shape with an interval therebetween.

The buoyant layer may have a multilayer structure, and may include a first buoyant layer formed by winding a first resin body on the inner layer spirally; A second buoyant layer formed on the first buoyant layer by winding a second resin body spirally; And a third buoyant layer formed on the second buoyant layer by spirally winding a third resinous body.

In addition, the resin body may be selected from a foamed resin body or a non-foamed resinous body. The resin body is preferably formed with a perforation hole.

According to the present invention, there is provided a buoyancy layer for underwater buoyancy, wherein the buoyancy layer is formed at a low density by winding the resin body, and a space filled with gas such as air is provided, It has the effect of buoyancy.

1 is a configuration diagram showing a cable installation structure according to the prior art.
2 is a cross-sectional view of a water transporting member according to a first embodiment of the present invention.
FIGS. 3 to 6 are perspective views showing an embodiment of a resin body constituting the water-based transfer member according to the present invention. FIG.
FIG. 7 and FIG. 8 are structural views of essential portions of the water-based transfer member according to the present invention, in which the resin body is wound on the inner layer.
9 is a cross-sectional view of a water transporting member according to a second embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

The water transporting member according to the present invention is installed in water and is used for transportation of fluid, supply of electric power, transmission / reception of electric signal and / or transmission / reception of optical signal. Specifically, the water-moving conveying member according to the present invention includes a pipe (hose) for conveying a fluid of a liquid or a gaseous body, a pipe for supplying / receiving an electric signal (a sensor signal, a control signal and an operation signal) It is used as cable to receive. In the present invention, a cable includes a general cable and an optical cable.

Fig. 2 is a cross-sectional view of a water conveying member according to a first embodiment of the present invention, which illustrates a cable for transmitting / receiving electric power, electric / optical signals, and the like.

2, the water transfer member according to the present invention comprises an inner layer 10, a buoyancy layer 20 formed on the inner layer 10, and an outer layer 30 formed on the buoyancy layer 20, .

The inner layer 10 may have a hollow shape hollow along the longitudinal direction thereof or may be provided with a conductive and / or optic core 15 therein. In this case, when the hollow layer is formed in the inner layer 10, the transfer member according to the present invention can be used as a pipe (hose) for transporting fluid, that is, for transporting liquid or gas. When the inner layer 10 is provided with the conductive and / or optical core 15, the conveying member according to the present invention can supply power, transmit / receive an electrical signal, and / or transmit / receive an optical signal Cable (optical cable, etc.).

The core portion 15 is not particularly limited. The line-of-sight section 15 may supply power or transmit / receive electrical and / or optical signals such as a sensor signal, a control signal, an operation signal, and an optical signal. The line-of-sight section 15 includes at least one conductor having conductivity or optical properties. In this case, the core is made of a conductive metal, for example, copper, tin, silver, gold, aluminum, nickel, zinc, , Tungsten (W), iron (Fe), and the like, or two or more alloys selected therefrom. In addition, the core may be formed by plating a metal having excellent conductivity with another metal having excellent corrosion resistance and abrasion resistance. For example, the core may be formed of a copper wire having copper (Cu) having excellent conductivity and a core coated with tin (Sn) on the surface of the copper (Cu). In addition, the line-of-sight portion 15 may be formed of a coating wire coated with an insulator on the conductive wire core as described above. The core 15 may be composed of a core for an optical signal, for example, an optical fiber.

In addition, one or two or more of the core portions 15 may be provided in the inner layer 10. At this time, when two or more line segments 15 are provided, at least one of them is used for supplying electric power, and the other one is used for transmitting / receiving sensor signals, control signals, operation signals and / . Fig. 2 illustrates, by way of example, four core portions 15 installed in the inner layer 10. Fig. In addition, the inner core layer 10 is provided with the inner core portion 15 as described above, and air around the core core portion 15 is filled with air for buoyancy, A filler 12 for fixing can be interposed. At this time, the filler 12 may be at least one selected from a synthetic resin or a natural material such as a fiber bundle, a strip, a gel, and a foam.

The material of the inner layer 10 is not particularly limited, and may be selected from a rubber system, a synthetic resin system, and the like. The inner layer 10 may be made of, for example, a rubber-based composition comprising at least one rubber base selected from silicone, acrylic and fluorinated rubbers. Further, a synthetic resin-based composition comprising at least one resin base selected from, for example, polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP) and polyurethane . The composition may further contain at least one additive selected from additives, for example, fillers, antioxidants, crosslinking agents, crosslinking accelerators and plasticizers. The inner layer 10 may be formed by extruding a composition containing rubber or synthetic resin as the main raw material or by using an adhesive tape having the inner layer 10 as a base material and having the protective function of the inner layer 10, (Not shown).

The buoyancy layer 20 is for underwater buoyancy in accordance with the present invention and is formed by winding one or more resin bodies 22 on the inner layer 10. At this time, the buoyancy layer (20) is formed to have a space (24) filled with gas. Specifically, the buoyancy layer 20 is formed by winding one or more than two resin bodies 22 at predetermined intervals (D, see FIGS. 7 and 8) (24). The space 24 is filled with at least one gas selected from a gas for improving buoyancy, for example, air, oxygen and inert gas. At this time, the inert gas may be selected from, for example, helium (He) or argon (Ar) gas.

The resin body 22 may be wound on the inner layer 10 and may have a shape of a string or a strip, for example. The thickness (thickness) and the material of the resin body 22 are not particularly limited. The resin body 22 can be preferably selected from low-weight synthetic resins. The resin body 22 may be selected from polyethylene (PE), polypropylene (PP) and polyurethane (PU), for example, as a low-density synthetic resin. The resin body 22 may be formed of a foamed resin material or a non-foamed resin material in the form of a string or strip formed from the above-described synthetic resin.

3 to 6 illustrate various implementations of the resin body 22.

First, as shown in FIG. 3, the resin body 22 may have a string shape, that is, a string shape composed of a non-foamed solid resin. Further, as shown in Fig. 4, the resin body 22 has a string shape and may have a string shape composed of a foamed resin. At this time, when the resin body 22 is made of a foamed resin, as shown in Fig. 4, it has a plurality of micropores 22a formed by foaming. These fine pores 22a are advantageous for increasing the buoyancy.

In addition, the resin body 22 may have a strip shape, that is, a plate shape, and a strip shape composed of a non-foamed solid resin as shown in FIG. Further, the resin body 22 may have a strip shape composed of a foamed resin, as shown in Fig. At this time, as shown in FIG. 6, in the case of a strip composed of a foamed resin, it is preferable that a plurality of perforation holes 22b are formed along with micropores 22a formed by foaming. The perforation hole 22b is formed through physical perforation. When the perforation hole 22b is formed, it can be filled with gas such as air while having a light weight, which is highly desirable for increasing buoyancy.

7 and 8 illustrate a state in which the resin body 22 is woven on the inner layer 10 on the inner layer 10 and Fig. 7 shows a state in which the resin body 22 FIG. 8 shows a state where the resin body 22 of the foamed resin strip shape shown in FIG. 6 is applied.

As shown in FIGS. 7 and 8, the resin body 22 is wound on the inner layer 10, and preferably wound spirally at a predetermined interval D. At this time, the space 24 is provided by the interval D. 8 shows a preferred embodiment of the present invention. When the resin body 22 in the form of a foamed resin strip is wound at a predetermined distance D as shown in Fig. 8, the space 24 is provided, 22 has a perforation hole 22b together with a fine pore 22a, which is very effective in increasing buoyancy.

In addition, the resin body 22 can be wound in two or more layers. This will be described with reference to FIG.

9 is a cross-sectional view of a water transporting member according to a second embodiment of the present invention. Referring to FIG. 9, the buoyancy layer 20 may have a multi-layered structure of two or more layers. Specifically, the buoyancy layer 20 may be formed by winding one or more resin bodies 22 several times in one or more layers in each direction alternately in the clockwise direction and the counterclockwise direction to form a plurality of layers of two or more layers have. FIG. 9 shows an exemplary embodiment of the present invention, which illustrates the formation of three layers of buoyancy layers 20, 20-1, 20-2, and 20-3.

More specifically, as shown in FIG. 9, the buoyancy layer 20 includes a first buoyancy layer 20-1 formed by winding a first resin body 22-1 on the inner layer 10 spirally, A second buoyant layer 20-2 formed by spirally winding a second resin body 22-2 on the first buoyant layer 20-1 and a second buoyant layer 20-2 formed on the second buoyant layer 20-2, And a third buoyancy layer 20-3 formed by winding three resin bodies 22-3 in a spiral shape. Each of the buoyancy layers 20-1, 20-2, and 20-3 is provided with a space 24 filled with gas. Such a multi-layer structure has a high buoyancy with respect to the total weight.

On the other hand, the outer layer 30 may be formed on the buoyancy layer 20 so long as it can be protected from external force. The material of the outer layer 30 is not particularly limited, and the inner layer 10 may be selected from a material such as rubber or synthetic resin as described above. The outer layer 30 may be formed of a rubber-based composition comprising at least one rubber base selected from, for example, silicone-based, acrylic-based and fluorine-based rubbers. Also, the outer layer 30 may be made of a synthetic resin-based composition comprising at least one resin base selected from polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP) and polyurethane . The outer layer 30 may be formed by extruding a composition containing rubber or synthetic resin as the main ingredient on the buoyancy layer 20 or by using an adhesive tape based on the composition as described above, As shown in Fig. For example, the inner layer 10, rubber or plastic.

According to the present invention described above, the buoyancy layer 20 for underwater buoyancy is formed, the buoyancy layer 20 is formed at a low density and the space 24 is provided, It has a high buoyancy compared to a member (cable or pipe). That is, the buoyancy layer 20 is formed at a low density by winding the resin body 22, and the buoyancy layer 20 is provided with a space 24 filled with gas such as air and has a buoyancy higher than the size.

10: Inner layer 15:
20: Buoyant layer 22:
22a: pore 22b: perforation hole
24: space 30: outer layer

Claims (6)

Inner layer;
A buoyant layer formed on the inner layer by winding a resin body, the buoyancy layer being formed to provide a space filled with a gas; And
And an outer layer formed on the buoyancy layer.
The method according to claim 1,
Wherein the buoyancy layer is formed by winding a resin body in a spiral shape.
The method according to claim 1,
Wherein the buoyancy layer comprises: a first buoyancy layer formed by winding a first resin body on the inner layer in a spiral manner;
A second buoyant layer formed on the first buoyant layer by winding a second resin body spirally; And
And a third buoyant layer formed by winding a third resin body on the second buoyant layer in a spiral manner.
The method according to claim 1,
Wherein the water transferring member is a cable having a conductive or optical line-shaped portion provided in the inner layer or a pipe having a hollow in the inner layer.
5. The method according to any one of claims 1 to 4,
Wherein the resin body is a foamed resin body or a non-foamed resin.
5. The method according to any one of claims 1 to 4,
Wherein the resin body is provided with a perforation hole.
KR1020130004346A 2013-01-15 2013-01-15 Transfer device for under water with buoyancy KR20140092067A (en)

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KR1020130004346A KR20140092067A (en) 2013-01-15 2013-01-15 Transfer device for under water with buoyancy

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180102361A (en) * 2017-03-07 2018-09-17 엘에스전선 주식회사 Buoyant Optical Cable
KR101965130B1 (en) * 2018-11-02 2019-04-03 주식회사 반석퓨리텍 Buoy
KR20190085256A (en) * 2018-01-10 2019-07-18 엘에스전선 주식회사 Buoyant Optical-Power Composite Cable
KR102115376B1 (en) * 2019-03-27 2020-05-27 주식회사 반석퓨리텍 Buoy
KR20200075188A (en) * 2018-12-17 2020-06-26 주식회사 반석퓨리텍 Buoy and there of manufacturing mold

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180102361A (en) * 2017-03-07 2018-09-17 엘에스전선 주식회사 Buoyant Optical Cable
KR20190085256A (en) * 2018-01-10 2019-07-18 엘에스전선 주식회사 Buoyant Optical-Power Composite Cable
KR101965130B1 (en) * 2018-11-02 2019-04-03 주식회사 반석퓨리텍 Buoy
KR20200075188A (en) * 2018-12-17 2020-06-26 주식회사 반석퓨리텍 Buoy and there of manufacturing mold
KR102115376B1 (en) * 2019-03-27 2020-05-27 주식회사 반석퓨리텍 Buoy

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