KR101834291B1 - Corner panel assembly and construction method for lng cargo using the same - Google Patents

Corner panel assembly and construction method for lng cargo using the same Download PDF

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Publication number
KR101834291B1
KR101834291B1 KR1020160014098A KR20160014098A KR101834291B1 KR 101834291 B1 KR101834291 B1 KR 101834291B1 KR 1020160014098 A KR1020160014098 A KR 1020160014098A KR 20160014098 A KR20160014098 A KR 20160014098A KR 101834291 B1 KR101834291 B1 KR 101834291B1
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KR
South Korea
Prior art keywords
corner
wall
panel
flat plate
reinforcing
Prior art date
Application number
KR1020160014098A
Other languages
Korean (ko)
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KR20170093284A (en
Inventor
박경제
이세진
임승범
Original Assignee
삼성중공업 주식회사
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Priority to KR1020160014098A priority Critical patent/KR101834291B1/en
Publication of KR20170093284A publication Critical patent/KR20170093284A/en
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Publication of KR101834291B1 publication Critical patent/KR101834291B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • B63B9/00—
    • B63B9/06—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/001—Thermal insulation specially adapted for cryogenic vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/025—Bulk storage in barges or on ships
    • F17C3/027—Wallpanels for so-called membrane tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/01—Reinforcing or suspension means
    • F17C2203/011—Reinforcing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0358—Thermal insulations by solid means in form of panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0626—Multiple walls
    • F17C2203/0631—Three or more walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/228—Assembling processes by screws, bolts or rivets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships
    • F17C2270/0107—Wall panels

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

A corner wall of a liquefied gas holding window is disclosed. A corner wall according to the present invention includes a corner insulating panel having a shape corresponding to a corner edge of a liquefied gas holding window, and the corner insulating panel protrudes from a surface facing the plate wall, And the like.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a corner wall and a liquefied gas-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a corner wall and a liquefied gas holding window including the same, and more particularly, to a corner wall provided at a corner of a liquefied gas holding window and a method of constructing the liquefied gas holding window using the same.

Liquefied gas is a liquid made by cooling or compressing gas, and consumption of liquefied gas such as Liquefied Natural Gas (LPG) or LPG (Liquefied Petroleum Gas) is rapidly increasing worldwide.

Liquefied natural gas (LNG), which is an example of liquefied gas, refers to a colorless transparent cryogenic liquid having a volume of methane-based natural gas cooled to -162 ° C and reducing its volume by one-sixth, In order to utilize natural gas as energy, efficient transportation methods have been examined that can be mass-shipped from the production base to the destination of the demand site. As part of this effort, a liquefied natural gas transport vessel capable of transporting large volumes of liquefied natural gas to sea was developed.

The liquefied natural gas transportation vessel must have a cargo which can store and store the liquefied natural gas liquefied at a cryogenic temperature.

That is, since the liquefied natural gas has a higher vapor pressure than the atmospheric pressure and has a boiling temperature of about -162 ° C, in order to safely store and store such liquefied natural gas, For example, it should be made of aluminum steel, stainless steel, 35% nickel steel, etc. It should be designed with a unique insulation panel structure which is resistant to thermal stress and heat shrinkage and prevents heat penetration. Such a cargo hold of a liquefied natural gas transportation vessel can be divided into a self-supporting type and a membrane type depending on its structure.

Korean Patent Laid-Open Publication No. 10-2012-0013233 (Feb. 14, 2012) discloses a liquefied natural gas storage tank and a manufacturing method thereof. Such a membrane type liquefied gas holding window is disadvantageous in that it requires a lot of manpower and materials in construction / manufacture, and studies for improving it have been actively conducted and are part of such efforts of the present invention.

Korean Published Patent Application No. 10-2012-0013233 (2012.02.14.)

The present invention provides a method of constructing a corner wall and a liquefied gas holding window including the same, which can be easily installed and installed.

According to an aspect of the present invention, there is provided a corrugated heat insulating panel having a shape corresponding to a corner edge of a liquefied gas holding window, wherein the corner insulating panel protrudes from a surface facing the plate wall to press a part of the plate wall A corner wall can be provided which has an extension.

A first corner reinforcing panel coupled to the lower side of the corner insulating panel, a second corner reinforcing panel coupled to the upper side of the corner insulating panel, and a reinforcing member coupled to the upper side of the second corner reinforcing panel .

The first corner reinforcement panel is provided with a fastening groove into which a bolt can be inserted, and the corner wall is provided on the same line as the fastening groove, and the corner insulating panel, the second corner reinforcement panel, And the through hole may be filled with the heat insulating foam.

The extending portion may include a shape corresponding to a cut portion of the flat plate and pressing the first corner reinforcing panel provided below the flat plate.

According to another aspect of the present invention, there is provided a liquefied gas holding structure, comprising: a first type upper corner wall including a corner insulating panel bent to correspond to a corner edge of a liquefied gas holding window; a second type upper corner wall protruding from a surface facing the upper plate wall, And a second type upper corner wall including a corner heat insulating panel bent to correspond to a corner edge of the liquefied gas holding window with an extension extending to the upper end wall of the liquefied gas storage container, the method comprising: (b) , And (c) installing the second type of corner wall on the lower insulating wall so that the extension portion presses a part of the flat plate wall.

The step (c) may include pressing the first flat plate reinforcing panel provided on the lower side of the flat plate wall in a shape corresponding to the cut portion of the flat plate.

The method may further include, before the step (b), (a) installing the first-type upper corner wall on the lower insulation wall.

The corner wall according to the present invention is advantageous in that the extension provided thereon can push the flat plate wall, so that the flat plate wall can be stably fixed without a separate fixing means.

In addition, since the extension of the corner wall can fill a vacant portion of the cut portion of the flat plate wall, the foam member additionally provided to the cut portion of the flat plate wall can be omitted, thereby wasting labor and waste of resources.

The method of constructing a corner portion of a liquefied gas holding window according to the present invention has an advantage that a flat plate can be stably fixed without a separate fixing means, thereby wasting human resources and wasting resources.

1 is a plan view of a corner portion of a liquefied gas holding window according to a first embodiment of the present invention.
Fig. 2 is a side cross-sectional view of the liquefied gas cargo hold with respect to AA of Fig. 1 of Fig. 1;
3 is a perspective view of a corner wall according to the first embodiment of the present invention.
4 is a front view of a corner wall according to the first embodiment of the present invention.
5 is a cross-sectional view of BB of Fig.
6 is a perspective view of a corner wall according to a second embodiment of the present invention.
7 is a plan view of a corner portion of a liquefied gas holding window according to a second embodiment of the present invention.

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

The embodiments described below are provided by way of example so that those skilled in the art will be able to fully understand the spirit of the present invention. The present invention is not limited to the embodiments described below and may be embodied in other forms. In order to clearly explain the present invention, parts not related to the description are omitted from the drawings, and the width, length, thickness, etc. of the components may be exaggerated for convenience. Like reference numerals designate like elements throughout the specification.

The corner walls provided at the corners of the cargo hold to be described later, and the flat plate walls provided in the flat plate portion of the cargo hold constitute the wall of the cargo hold, and the heat insulating walls, which will be referred to as "corner walls" and " I will. At this time, the corner portion connects the flat portions disposed at different angles, and includes corner portions to which two different heat insulating panels are connected and vertex portions to which three different heat insulating panels are connected.

The kitchen wall not shown in the drawing will be briefly described. The kitchen wall (not shown) serves to seal the storage space in which the storage fluid, i.e. liquefied gas, is received. At this time, a metallic material such as an invar alloy (INVAR), stainless steel (SUS), or an aluminum alloy can be used so that the kitchen wall (not shown) can maintain its physical and chemical state even at a very low temperature.

Further, the kitchen wall (not shown) may be formed by connecting a plurality of sheets and may be welded to each other to maintain airtightness. Since such a kitchen wall (not shown) is generally used in a liquefied gas holding window, a detailed description thereof will be omitted.

FIG. 1 is a plan view of a corner portion of a liquefied gas holding window according to a first embodiment of the present invention, and FIG. 2 is a side sectional view of a liquefied gas holding window for A-A of FIG. At this time, for the sake of understanding, the kitchen wall constituting the uppermost layer of the liquefied gas holding window is not shown and is omitted.

1 and 2, a liquefied gas holding window including a corner wall according to a first embodiment of the present invention mainly includes a lower insulating wall 10, an upper plate wall 30, a first upper- (40), and a second-type upper corner wall (100). At this time, in the double-structured liquefied gas holding window, a kitchen wall (not shown) is provided above the upper flat plate wall 30, the first upper corner wall 40 and the second upper corner wall 100, . Hereinafter, the role and specific shape of each of these components will be examined one by one.

The lower insulating wall 10 will be described. The lower heat insulating wall 10 is a heat insulating wall located on the lower side of the cargo hold of the double structure and includes the lower heat insulating panel 11, the lower first reinforcing panel 12 and the lower second reinforcing panel 13 .

First, the lower thermal insulation panel 11 performs a thermal insulation function, which is a basic role of the lower thermal insulation wall 10 installed in the cargo hold. The lower thermal insulation panel 11 may be made of a material having excellent heat insulation performance and light weight such as polyurethane foam (PUF) or reinforced polyurethane foam (R-PUF) Can be insulated from the outside and maintained at a very low temperature.

Next, the lower first reinforcing panel 12 and the lower second reinforcing panel 13 reinforce the structural strength of the heat insulating wall 10, facilitate the connection with the outer wall of the hull, and form the upper corner wall 40, 100 And the flat plate 30 can be easily installed. The lower reinforcing panels 12 and 13 may be bonded to the lower and upper sides of the lower heat insulating panel 11, respectively. On the other hand, the reinforcing panels 12 and 13 can be omitted from the corners of the corners where installation is difficult.

The auxiliary barrier 20 will now be described. The auxiliary barrier 20 can function as a preliminary means for preventing the leakage of the liquefied gas which is formed by the lower insulating wall 10 and the upper insulating wall, May be located between the walls (40,100).

The auxiliary barrier 20 may be formed of a metal material such as an INVAR, stainless steel or aluminum alloy as in a case of a kitchen wall (not shown), or a rigid triplex, A supple triplex can be used.

In addition, the adhesive type manufacturing method and the welding type manufacturing method are used in accordance with the difference in the method of connecting the auxiliary barrier 20 to the lower insulating wall 10. Although not shown in the drawing, in the adhesive type manufacturing method, a rigid triplex is attached by using an adhesive such as epoxy glue on the upper side of the lower heat insulating wall 10, and the adjacent rigid triplex is connected by a support triplex, State can be completed. At this time, the shuffle triplex may also be attached to the rigid triplex by an adhesive.

Next, the upper flat plate wall 30 will be described. The upper flat plate wall 30 is an upper heat insulating panel provided on the flat plate portion of the cargo hold and may include the flat plate insulating panel 31, the first flat plate reinforcing panel 32 and the second flat plate reinforcing panel 33 . In addition, the upper flat plate 30 has a rectangular plate shape, and a cutting portion 34 may be formed at four vertexes.

The flat plate insulation panel 31 performs a heat insulation function, which is a basic role of the upper flat plate 30 installed in the cargo hold, like the above-described lower insulation panel 11. The lower flat panel insulation panel 31 may be made of a material having excellent heat insulation performance and light weight such as polyurethane foam (PUF) or reinforced polyurethane foam (R-PUF) The fluid can be insulated from the outside to keep it in a cryogenic condition.

Next, the first flat panel reinforcing panel 32 and the second flat panel reinforcing panel 33 are bonded to each other at the lower side and the upper side of the flat panel insulating panel 31 to reinforce the structural strength, The wall 30 can be easily installed.

The cutting portion 34 may be provided at four corners of the upper flat plate 30 having a rectangular shape and serve as fixing means for fixing the upper flat plate 30 to the auxiliary barrier 20. [

The cutting portion 34 may be formed in a rectangular shape cut in the height direction leaving only the first flat panel reinforcing panel 32 bonded to the lower side of the flat panel insulating panel 31 at the four corners of the upper flat panel wall 30 . That is to say, the cutting portion 34 may be provided only at the four corners of the flat panel insulating panel 31 and the second flat panel reinforcing panel 33 except for the first flat panel reinforcing panel 32. This allows the extended portion 100A of the second type upper corner wall 100, which will be described later, to perform the function of pressing and fixing the first flat panel reinforcing panel 32. [ However, the cutting portion 34 may be provided on the side surface of the flat plate 30, but is not limited thereto.

The cutting portion 34 may be provided in a shape corresponding to the extending portion 100A provided in the second upper-type corner wall 100, which will be described later. This is also because the extension part 100A of the corner wall can fill the empty part of the cutting part 34 of the flat plate 30 so that the foam member 30 (Not shown) can be omitted, and consequently there is an advantage that wasted manpower and waste of resources can be reduced.

Next, the upper corner walls 40 and 100 will be described. The corner wall provided at the corner of the cargo hold may be divided into a first type upper corner wall 40 and a second type upper corner wall 100 according to the first embodiment of the present invention, . But the second upper-type upper corner wall 100 according to the first embodiment of the present invention is not limited to the first upper-type upper corner wall 40 and the second upper- There is a big difference. The first type upper corner wall 40 will be described first, and the second type upper corner wall 100 will be described with reference to FIGS.

The first type upper corner wall 40 may have a structure in which a corner insulating panel 41, a first corner reinforcing panel 42, a second corner reinforcing panel 43, and a reinforcing member 44 are laminated.

First, the corner insulating panel 41 is the same as the above-described heat insulating panels 11 and 31, but carries out insulation of the cargo hold, but the difference is that the corner insulating panel 41 can be provided in the form of bending . The corner insulating panel 41 may be made of a material having excellent heat insulation performance and light weight such as a polyurethane foam (PUF) or a reinforced polyurethane foam (R-PUF) Can be insulated from the outside and maintained at a very low temperature. Here, the term "having a bend-like shape" is an example of a shape corresponding to a corner of a liquefied gas holding window.

Next, the first corner reinforcing panel 42 and the second corner reinforcing panel 43 reinforce the structural strength of the first-type upper corner wall 40, as well as the first-type upper corner wall 40, It is possible to facilitate the installation in the main body 20. These corner reinforcing panels 42 and 43 can be bonded to the lower side and the upper side of the corner insulating panel 41, respectively.

Next, the reinforcing member 44 may be provided to reinforce the structural strength of the first-type upper corner wall 40. The corners can greatly protect the corner insulating panel 41 from being impacted by sloshing or the like of the liquefied gas stored in the cargo hold.

FIG. 3 is a perspective view of the corner wall 100 according to the first embodiment of the present invention, FIG. 4 is a front view of the corner wall according to the first embodiment of the present invention, and FIG. Fig.

3 to 5, a corner wall 100 according to a first embodiment of the present invention, that is, a second type upper corner wall 100 includes a corner insulating panel 110, a first corner reinforcing panel 120, A second corner reinforcing panel 130, a reinforcing member 140, and a heat insulating foam 150, and an extension 100A may be formed on one side.

First, the corner insulating panel 110 may be formed in a shape bent in a b-letter shape. The corner insulating panel 110 can be made of a material having excellent heat insulation performance and light weight such as polyurethane foam (PUF) or reinforced polyurethane foam (R-PUF) It can be maintained at a cryogenic temperature.

Next, the first corner reinforcing panel 120 and the second corner reinforcing panel 130 reinforce the structural strength of the second mold upper corner wall 100, as well as the second mold upper corner wall 100, It is possible to facilitate the installation in the main body 20. The corner reinforcement panels 120 and 130 may be made of PLYWOOD. The corner reinforcement panels 120 and 130 are easy to be joined and have high rigidity. The corner reinforcement panels 42 and 43 may be bonded to the lower side and the upper side of the corner insulating panel 41, respectively.

Next, the reinforcing member 140 may be provided to reinforce the structural strength of the second shaped upper corner wall 100. In the corner portion, a shock caused by sloshing or the like of the liquefied gas stored in the cargo hold greatly acts and protects the corner insulating panel 110 which may be easily damaged by the impact.

Next, the second-type upper corner wall 100 may be provided with an extension portion 100A that protrudes from the surface facing the upper plate wall 30 and presses a part of the plate wall 30. [ This allows the first flat panel reinforcing panel 32 provided on the upper flat wall 30 to be pressed by the extending portion 100A.

In other words, the cutting portion 34 is provided at the four corners of the upper flat plate 30, and can have a rectangular shape cut in the height direction while leaving only the first flat plate reinforcing panel 32, which is used. The extension portion 100A of the second type upper corner wall 100 presses the first flat plate reinforcing panel 32 from above to fix the upper flat plate 30.

The extension portion 100A may be formed in a shape corresponding to the cutting portion 34 of the upper flat plate 30. [ This is because the extension of the corner wall can fill the empty portion of the cut portion 34 of the flat wall 30 so that the foam member additionally provided to the cut portion 34 of the plate wall 30 can be omitted, There is an advantage of wasting manpower and wasting resources.

Referring to FIG. 5, a description will be given of a manner of fixing the second shaped upper corner wall 100 to the auxiliary barrier 20 and a configuration related thereto.

To this end, the first corner reinforcement panel 120 of the corner wall 100 may be provided with a coupling groove into which a bolt projecting upwardly from the auxiliary barrier 20 can be inserted.

The corner wall 100 is provided with a through hole 100B which is provided on the same line as the coupling groove and continuously passes through the corner insulating panel 110 and the second corner reinforcing panel 130 and the reinforcing member 140 So that the heat insulating foam 150 can be filled in the through hole 100B. At this time, the heat insulating foam 150 can equalize the heat insulating performance of the corner wall 100 as a whole and improve the heat insulating performance.

In other words, when the second type upper corner wall 100 is installed in the auxiliary barrier 20, the bolts protruding upward from the auxiliary barrier 20 are fixed to the nut through the engagement grooves formed in the first corner reinforcement panel 120 The through hole 100B is provided above the fastening groove so that the operator can easily carry out the above process. The heat insulating foam 150 is inserted into the through hole 100B.

Next, referring to FIG. 2, a construction method of a liquefied gas holding window including a corner wall 100 according to a first embodiment of the present invention will be described.

The liquefied gas holding window including the corner wall 100 according to the first embodiment of the present invention is characterized in that (a) the first type upper corner wall 40 is installed on the auxiliary barrier 20 (B) attaching the upper plate wall (30) to the secondary barrier (20); (c) And installing the corner wall 100 in the secondary barrier 20. [

First, the step (a) of installing the first-type upper corner wall 40 on the auxiliary barrier 20 is performed by first attaching the first-type upper corner wall 40 having a relatively small size to the auxiliary barrier 20 It is a step to install. When the first-type upper corner wall 40 is first installed on the auxiliary wall 20, the arrangement and construction of the later-installed flat wall 30 and the corner wall 100 can be easily performed.

Next, (b) the step of installing the upper plate wall 30 on the auxiliary barrier 20 is performed by disposing the upper plate wall 30 after the first-type upper corner wall 40 is first installed on the auxiliary barrier 20 Is installed in the auxiliary barrier (20). At this stage, the upper plate wall 30 may be spaced apart from the upper plate wall 30 at a position where the first upper corner wall 40 is installed and disposed. At this time, after the upper flat plate 30 is completely installed, a gap insulation (not shown) may be additionally installed between the upper flat plate 30 and the first type upper corner wall 40.

Meanwhile, steps (a) and (b) may be performed simultaneously. At this time, a gap insulation (not shown) formed between the first type upper corner wall 40 and the upper plate wall 30 can be applied regardless of the order.

Next, (c) in the step of installing the second mold upper corner wall 100 on the auxiliary wall 20 so that the extension portion 100A presses a part of the flat plate 30, the second mold upper corner wall 100 may be installed by pressing the first flat plate reinforcing panel 32 of the upper flat plate 30 from the upper side to the lower side. And fix the upper plate wall 30 through the extension portion 100A.

As a result, the liquefied gas holding window constructed in this manner has an advantage that it can stably fix the flat plate 30 without any fixing means. This can reduce manpower waste and resource waste.

Since the extension portion 100A of the corner wall 100 can fill the empty portion of the cut portion 34 of the flat plate 30, the additional portion 100A of the corner wall 100 can be additionally provided to the cut portion 34 of the flat plate 30 It is possible to omit the foam member, and waste of manpower and waste of resources can be reduced.

FIG. 6 is a perspective view of a corner wall 200 according to a second embodiment of the present invention, and FIG. 7 is a plan view of a corner portion of a liquefied gas holding window according to a second embodiment of the present invention.

The corner wall 200 according to the second embodiment of the present invention has the corner insulating panel 110, the first corner reinforcing panel 120, the second corner reinforcing panel 130 and the reinforcing member 140 The extended portion 200A may have a semicircular shape so as to correspond to the upper flat plate 30 'having a stacked structure and the cut portion 34' provided in a quadrant shape. In other words, this is different from the cutting portion 34 in the first embodiment in that the cutting portion 34 'and the extending portion 200A have a semicircular shape.

This corner wall 200 allows the plate wall 30 'to be stably fixed to the extension portion 200A provided in a shape corresponding to the cut portion 34' of the flat wall 30 '.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, . Accordingly, the true scope of the invention should be determined only by the appended claims.

10: lower insulation panel 11: lower insulation panel
12: lower first reinforcing panel 13: lower second reinforcing panel
20: auxiliary barrier 30: upper plate wall
30 ': upper plate wall body 31: flat plate insulating panel
32: first flat plate reinforcing panel 33: second flat plate reinforcing panel
34: cutting portion 34 ': cutting portion
40: first type upper corner wall 41: corner insulating panel
42: first corner reinforcement panel 43: second corner reinforcement panel
44: reinforcement member 100: second type upper corner wall
100A: extension part 100B: through hole
110: Corner insulation panel 120: First corner reinforcement panel
150: Insulating foam 130: Second corner reinforcement panel
140: reinforcing member 200A: extension part
200: second type upper corner wall 220: first corner reinforcing panel
210: Corner insulation panel 240: Reinforcing member
230: second corner reinforcement panel

Claims (7)

A corner insulating panel having a shape bent to correspond to a corner edge of the liquefied gas holding window;
A first corner reinforcing panel coupled to a lower side of the corner insulating panel;
A second corner reinforcing panel coupled to the upper side of the corner insulating panel;
A reinforcing member coupled to the upper side of the second corner reinforcing panel; And
And a second corner reinforcing panel provided on the corner insulating panel and the second corner reinforcing panel and protruding from a surface facing the flat plate wall so as to be fitted to the cut portion of the flat plate wall to press the first flat plate reinforcing panel provided below the flat plate, A corner wall including an extension for fixing the wall,
And a second wall provided on the upper side of the flat plate to cover the second flat plate reinforcement panel and the second corner reinforcement panel together. delete The method according to claim 1,
Wherein the first corner reinforcement panel is formed with a fastening groove into which a bolt can be inserted,
The corner wall
Wherein the first corner reinforcing panel and the second corner reinforcing panel are provided on the same line as the coupling groove, and the through-hole is filled with the heat insulating foam, . delete A first type upper corner wall including a corner insulating panel bent to correspond to a corner edge of the liquefied gas holding window and a second corner reinforcing member having an extension portion protruding from the surface facing the upper plate wall to press a part of the plate wall, A method of constructing a liquefied gas holding window having a second type upper corner wall including a panel and a corner insulating panel,
(b) installing the upper flat wall to a lower insulation wall,
(c) installing the second mold upper corner wall so that the extension of the semicircular shape presses and fixes the first flat plate reinforcement panel provided below the flat plate wall,
(d) covering a second wall of the second flat plate reinforcement panel provided on the upper side of the flat plate and a top wall of the second corner reinforcement panel with a kitchen wall. delete 6. The method of claim 5,
Before the step (b)
(a) installing the first type upper corner wall on a lower insulation wall.
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WO2022131755A1 (en) * 2020-12-14 2022-06-23 현대중공업 주식회사 Liquefied gas storage tank and ship comprising same
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WO2022131755A1 (en) * 2020-12-14 2022-06-23 현대중공업 주식회사 Liquefied gas storage tank and ship comprising same
KR20220139779A (en) * 2021-04-08 2022-10-17 현대중공업 주식회사 Liquefied gas storage tank and vessel comprising the same
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