KR101424419B1 - Icing protective device installed deck pipe-assembly support plate of LNG vessels sailing polar region - Google Patents
Icing protective device installed deck pipe-assembly support plate of LNG vessels sailing polar region Download PDFInfo
- Publication number
- KR101424419B1 KR101424419B1 KR1020140039295A KR20140039295A KR101424419B1 KR 101424419 B1 KR101424419 B1 KR 101424419B1 KR 1020140039295 A KR1020140039295 A KR 1020140039295A KR 20140039295 A KR20140039295 A KR 20140039295A KR 101424419 B1 KR101424419 B1 KR 101424419B1
- Authority
- KR
- South Korea
- Prior art keywords
- supporting
- support
- deck
- lng
- main body
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
[0001] The present invention relates to a freezing prevention device installed on a deck pipe body supporting part of an LNG carrier for an off-highway navigation, and more particularly to a freezing prevention device for preventing freezing of a supporting part for supporting various pipe bodies, An apparatus for preventing freezing that covers a pipe body supported by a support portion and a support portion, the deck pipe body support portion covering an canvas housing made of a material for blocking contact with rain water or waves, To a freezing prevention device to be installed.
LNG is a colorless transparent cryogenic liquid with methane-based natural gas cooled to -162 ° C, which is reduced to one-sixth its volume, and is generally referred to as liquefied natural gas. Although liquefied natural gas (LNG) is mainly composed of methane, it also contains small amounts of other liquefied gases, and the current economic concern is concentrated on LNG transport, but the problems associated with the massive transport and handling of liquefied gas include ammonia, , Butane and chlorine.
In order to use this gas as energy as the LNG emerged as an energy resource, an efficient transportation method capable of mass transportation from the production base to the destination site of the demand site was examined. The result is an LNG transport line for the sea transportation of LNG appear.
The LNG carrier has a LNG storage tank and a pipe body on the deck of the ship for the injection and discharge of LNG into the storage tank for storage and transportation of LNG liquefied at ultra low temperature. The pipeline for injecting (loading) the LNG into the storage tank or discharging (unloading) the injected LNG is not affected by the deformation even at an extreme temperature, There should be no freezing from various extreme natural disasters.
Typically, LNG is transported at a vapor pressure slightly above atmospheric pressure and at boiling temperatures of about -260 ° F (-160 ° C), all containment systems must be constructed of materials that can withstand extremely low temperatures, To prevent thermal influences and to prevent the cooling of the ship's basic hull structure.
In addition, there has been a phenomenon that, when a cryogenic fluid flows in a pipe as in the conventional Korean Patent Registration No. 1226006 (pipe supporting structure), the pipe causes a lot of thermal deformation, and accordingly, And the stress of the pipe body increases when the support device strongly restricts the pipe when the pipe is deformed.
Conventionally, there has been proposed a pipe body having a rigid support structure and a relaxed structure to prevent the expansion of the slide padding due to the expansion of the pipe to prevent the pipe from reaching the support device by mounting a centrifugal plate between the pipe and the support device supporting the pipe. And a supporting device were developed.
However, in the case of a conventional LNG carrier, since the pipe and the supporting device are fixed on the deck of the ship, rain, water spray or the like comes into contact with the pipe provided on the deck and the supporting device when the user navigates the polar regions, The pipe and the supporting device can not exhibit their original functions due to the problem of melting thick ice at the pipe portion provided with the supporting device when loading or unloading the LNG.
In other words, when the pipe is deformed due to a temperature difference, the slide padding, which is installed between the pipe and the support device and guides the pipe so as to move freely without impact, is frozen, There was a problem that disaster could occur.
SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a canvassing housing for covering a pipe body provided on a deck of a LNG carrier and a support for supporting the pipe body, And the canvas housing is made of a closed-type membrane material having no movement of air, so that extreme air outside is blocked to maintain the warmth, and the canvas housing is provided with pipes The contact piece is integrally formed with the membrane member so as to closely adhere to the outer circumferential surface of the body so as to block rainwater or the like from the outside to prevent freezing of the pipe body and the support portion.
The present invention relates to a piping system for a LNG carrier operating on an offshore LNG carrier, comprising: a pipe main body installed on a deck for loading or unloading the LNG from a storage tank installed in a hull of an LNG carrier; A centrifugal plate provided on an outer oblique side of the clamp with clamps coupled to an outer circumferential surface of the pipe body corresponding to the inside of the support; The deck pipe body supporting portion of the LNG carrier of the polarity operated by the sliding pad,
A first support surface that is larger in width than an upper surface of the support portion while being in contact with an upper surface of the support portion, and a support piece that is bent at a left end and a right end of the first support surface, And a second support surface that is bent upward and downwardly of the first support surface and extends vertically downwardly,
A support portion having the support cover, and a box-shaped lower portion opened to cover the pipe body protruding from both sides of the support portion, the inlet opening being formed at both sides thereof, and the first opening portion having the lower one- A deck pipe body supporting portion of the polar-operated LNG carrier, which is composed of a canvas housing which is formed integrally with the inner circumferential surface of the inlet to form an annular adhered portion protruding outwardly, And a freezing prevention device.
The present invention also provides an anti-icing device provided on a deck pipe body support portion of an LNG carrier for polarity navigation, wherein the opposite ends of the first opening formed below the inlet of the canvas housing are connected to each other.
In addition, a plurality of connection holes are formed at a lower end portion of the canvas housing at equal intervals, and a tightening strap is provided so as to be inserted through the connection holes.
Meanwhile, the canvas housing is provided on a deck pipe body supporting portion of an LNG carrier of polarity which is made of a waterproof membrane.
According to the ice-making apparatus provided on the deck pipe body support portion of the polar-operated LNG carrier, a canvas housing that covers the pipe body provided on the deck of the LNG ship and the support portion supporting the pipe body is provided, It is possible to prevent a serious disaster such as breakage of the pipe main body or the support part by preventing the freezing of the canvas housing by blocking contact.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a pipe main body and a support portion installed on a deck of an LNG carrier according to the present invention. FIG.
Fig. 2 is a structural view of a pipe body and a support portion " A " in a deck of an LNG carrier according to an embodiment of the present invention shown in Fig.
3 is a front view of a pipe body and a support portion installed on the deck of the LNG carrier according to the embodiment of the present invention shown in FIG.
4 is a structural view showing a pipe body installed on a deck of an LNG carrier according to an embodiment of the present invention and a freezing prevention device for covering the support part.
5 is an assembled structure in which a support cover is installed on an upper surface of a support of a pipe body installed on a deck of an LNG carrier according to an embodiment of the present invention.
FIG. 6 is a cross-sectional view of a support body of a pipe body installed on a deck of an LNG carrier according to an embodiment of the present invention.
7 is a structural view of a canvas housing covering a support portion of a pipe body installed on a deck of an LNG carrier according to an embodiment of the present invention.
FIG. 8 is an enlarged view of a "B" portion of a canvas housing that covers a support portion of a pipe body installed on a deck of an LNG ship according to an embodiment of the present invention shown in FIG. 7;
Fig. 9 is a cross-sectional view of a section of a canvas housing which is cut off at a portion "C" of a can body which covers a supporting portion of a pipe body installed on a deck of an LNG carrier according to an embodiment of the present invention shown in Fig. 7;
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout.
In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.
The detailed structure of the LNG storage tank of the LNG carrier and the pipe main body connected to the LNG storage tank and the pipe main body connected to the LNG storage tank are not shown, and only the pipe body installed on the deck of the LNG carrier, Specificity is given to the structure in which the device is installed, and the following description will be given.
1 to 3, the
The
In order to solve the problem of freezing in a cryogenic condition occurring in the
As shown in FIGS. 1 to 8, the present invention relates to a pipe
As shown in FIGS. 1 and 4, the present invention is characterized in that the
The
6 to 8, a
The
The
At this time, a ring-shaped tightening
7 and 8, in order to cover the
The second
Of course, it is obvious that the
As shown in FIG. 8, the LNG carrier of the polarized navigation system further includes a
When the
7 and 8, a plurality of
The bottom of the
9, the
The canvas housing 300 prevents water such as rainwater and water spray from being infiltrated and prevents freezing of the
The
The
A
A
Further, a sheet layer formed by at least one material selected from the group consisting of polyethylene (PE), polypropylene (PP), polyester (PET) and ethylene vinyl acetate (EVA) To constitute a membrane.
It may be formed of a single material of polyethylene (PE), polypropylene (PP), polyester (PET), ethylene vinyl acetate (EVA), or a composite thereof to have structural stability.
In addition, a polypropylene (PP) nonwoven fabric or a polyester (PET) nonwoven fabric may be formed in any structure selected from the group consisting of a carbon fiber netting layer and a sheet layer instead of the carbon fiber netting layer. (Fiber Glass Mesh), it is possible to achieve more structural stability.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims. It can be understood that it is possible.
A
Claims (4)
A first support surface that is larger in width than an upper surface of the support portion while being in contact with an upper surface of the support portion, and a support piece that is bent at a left end and a right end of the first support surface, And a second support surface that is bent upward and downward from the first support surface and extends vertically downward,
A support portion having the support cover, and a box-shaped lower portion opened to cover the pipe body protruding from both sides of the support portion, the inlet opening being formed at both sides thereof, and the first opening portion having the lower one- And a canvas housing formed integrally with the inner circumferential surface of the inlet to form a ring-shaped contact piece protruding outwardly, the second open portion being cut out from the lower side of the contact piece,
Wherein the fastening member is provided on both sides of the first opening formed below the inlet of the canvas housing so as to be connected to each other.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140039295A KR101424419B1 (en) | 2014-04-02 | 2014-04-02 | Icing protective device installed deck pipe-assembly support plate of LNG vessels sailing polar region |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140039295A KR101424419B1 (en) | 2014-04-02 | 2014-04-02 | Icing protective device installed deck pipe-assembly support plate of LNG vessels sailing polar region |
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KR101424419B1 true KR101424419B1 (en) | 2014-07-28 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020140039295A KR101424419B1 (en) | 2014-04-02 | 2014-04-02 | Icing protective device installed deck pipe-assembly support plate of LNG vessels sailing polar region |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102235656B1 (en) | 2020-02-26 | 2021-04-05 | 주식회사 현대폴리텍 | Method for manufaturing the deck clamp for mounting deck pipes on LNG ship |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6035887A (en) * | 1997-07-09 | 2000-03-14 | Cato; Steven H. | Valve assembly |
KR20120003025U (en) * | 2010-10-25 | 2012-05-03 | 대우조선해양 주식회사 | System for preventing freesing of anchor and ship having the same |
KR20120119645A (en) * | 2011-04-22 | 2012-10-31 | 삼성중공업 주식회사 | System for protecting pipe |
-
2014
- 2014-04-02 KR KR1020140039295A patent/KR101424419B1/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6035887A (en) * | 1997-07-09 | 2000-03-14 | Cato; Steven H. | Valve assembly |
KR20120003025U (en) * | 2010-10-25 | 2012-05-03 | 대우조선해양 주식회사 | System for preventing freesing of anchor and ship having the same |
KR20120119645A (en) * | 2011-04-22 | 2012-10-31 | 삼성중공업 주식회사 | System for protecting pipe |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102235656B1 (en) | 2020-02-26 | 2021-04-05 | 주식회사 현대폴리텍 | Method for manufaturing the deck clamp for mounting deck pipes on LNG ship |
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