KR20130005539A - Barrier assembly of lng tank and method for installation thereof - Google Patents

Barrier assembly of lng tank and method for installation thereof Download PDF

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Publication number
KR20130005539A
KR20130005539A KR1020110067001A KR20110067001A KR20130005539A KR 20130005539 A KR20130005539 A KR 20130005539A KR 1020110067001 A KR1020110067001 A KR 1020110067001A KR 20110067001 A KR20110067001 A KR 20110067001A KR 20130005539 A KR20130005539 A KR 20130005539A
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South Korea
Prior art keywords
barrier
heat insulating
corner
storage tank
coupling member
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KR1020110067001A
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Korean (ko)
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KR101290800B1 (en
Inventor
이재민
김현철
배준홍
아마미 소하일
이종규
임병옥
정왕조
채희문
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삼성중공업 주식회사
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
    • B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
    • B63B73/43—Welding, e.g. laser welding
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2231/00—Material used for some parts or elements, or for particular purposes
    • B63B2231/02—Metallic materials
    • 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
    • F17C2203/0609—Straps, bands or ribbons
    • 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
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • 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

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

Abstract

PURPOSE: A barrier structure of liquefied natural gas and an installation method thereof are provided to maintain the uniform quality of secondary barriers by welding members comprising the secondary barrier with an automatic welding device. CONSTITUTION: A barrier structure of a liquefied natural gas comprises multiple insulation members(12,14), corner panels, and multiple barrier members(32,34). The multiple insulation members are arranged to face each other. The corner panels comprises support members(20) of which both ends are supported at the edge of the insulation members and a metal coupling member(25) coupled to the support members. The multiple barrier members are supported on the insulation members. The coupling member includes a ribbon-shaped metal sheet.

Description

액화천연가스 저장탱크의 방벽 구조체 및 그 설치방법{Barrier assembly of LNG tank and method for installation thereof}Barrier assembly of LNG tank and method for installation

본 발명은 액화천연가스 저장탱크의 방벽 구조체 및 그 설치방법에 관한 것이다.
The present invention relates to a barrier structure and a method of installing the LNG storage tank.

일반적으로 액화천연가스 운반선 등의 액화천연가스 저장탱크는 SPB형과 멤브레인형으로 나뉜다. SPB형은 선체와는 별개의 독립적인 저장탱크를 제작하여 선체에 탑재하는 방식이고, 멤브레인형은 선체를 저장탱크의 일부로 사용하는 방식이다.In general, liquefied natural gas storage tanks such as liquefied natural gas carriers are divided into SPB type and membrane type. The SPB type is a method of manufacturing a separate storage tank independent of the hull and mounted on the hull, the membrane type is a method of using the hull as part of the storage tank.

도 1은 종래의 멤브레인형 액화천연가스 저장탱크의 구조를 나타내는 도면이고, 도 2는 도 1의 A부분을 확대한 도면이다.1 is a view showing the structure of a conventional membrane-type liquefied natural gas storage tank, Figure 2 is an enlarged view of the portion A of FIG.

도 1을 참조하면, 종래 기술에 따른 멤브레인형 액화천연가스 저장탱크는 1차 방벽(1)과, 2차 방벽(3)과, 선체의 내벽(5)을 포함하여 구성된다.Referring to FIG. 1, the membrane type LNG storage tank according to the prior art includes a primary barrier 1, a secondary barrier 3, and an inner wall 5 of the hull.

선체의 내벽(5)은 멤브레인형 액화천연가스 저장탱크의 최외곽을 구성하고, 선체의 내벽(5)에는 복수의 하부 단열부재(7)는 연속하여 인접 배치된다.The inner wall 5 of the hull constitutes the outermost part of the membrane type liquefied natural gas storage tank, and a plurality of lower insulating members 7 are continuously adjacent to the inner wall 5 of the hull.

그리고, 인접한 하부 단열부재(7) 상에는 2차 방벽(3)이 배치되고, 2차 방벽(3) 상에는 상부 단열부재(8) 및 삽입부재(9)가 배치되어 1차 방벽(1)을 지지한다.The secondary barrier 3 is disposed on the adjacent lower insulation member 7, and the upper insulation member 8 and the insertion member 9 are disposed on the secondary barrier 3 to support the primary barrier 1. do.

여기서, 1차 방벽(1)은 액화천연가스를 실질적으로 수용하는 것으로 일반적으로 스테인레스강으로 이루어진다. 이와 같은 1차 방벽(1)은 주름이 형성된 맴브레인 형태로 이루어 질 수 있다.Here, the primary barrier 1 is substantially made of stainless steel to substantially receive the liquefied natural gas. Such a primary barrier 1 may be formed in the shape of a membrane wrinkled.

2차 방벽(3)은 1차 방벽(1)으로부터 새어나온 액화천연가스가 외부로 누출되는 것을 방지하기 위한 것으로, 알루미늄 또는 트리플렉스로 이루어질 수 있다. 2차 방벽(3)은 복수의 메탈시트가 연결된 구조이다.The secondary barrier 3 is to prevent leakage of the liquefied natural gas leaked from the primary barrier 1 to the outside, and may be made of aluminum or triplex. The secondary barrier 3 has a structure in which a plurality of metal sheets are connected.

도 2에 나타난 바와 같이, 종래에는 복수의 하부 단열부재(7a, 7b) 사이를 충진재(7c)로 매운 후에, 각각의 하부 단열부재(7a, 7b)에 부착된 메탈시트(3a, 3b)들을 다른 메탈시트(3c)로 연결하여 2차 방벽을 형성하였다.As shown in FIG. 2, the metal sheets 3a and 3b attached to the respective lower insulating members 7a and 7b are filled with a filling material 7c between the plurality of lower insulating members 7a and 7b. By connecting with another metal sheet (3c) to form a secondary barrier.

이 때, 메탈시트(3a, 3b, 3c) 간의 연결은 접착제(4)를 이용하게 되므로, 접착제(4)의 경화시간이 필요하여 설치시간이 길어지는 문제가 있다. At this time, since the connection between the metal sheets 3a, 3b and 3c uses the adhesive 4, there is a problem in that the curing time of the adhesive 4 is required and the installation time is long.

또한, 접착제(4)를 이용하는 연결공정은 작업자의 숙련도에 따라 품질이 달라지는 문제도 있다.
In addition, the connection process using the adhesive 4 also has a problem that the quality varies depending on the skill of the operator.

본 발명의 실시예들은 설치시간을 단축할 수 있으며 균일한 품질을 가질 수 있는 액화천연가스 저장탱크의 방벽 구조체 및 그 설치방법을 제공하고자 한다.
Embodiments of the present invention are to provide a barrier structure and a method of installing the liquefied natural gas storage tank that can reduce the installation time and have a uniform quality.

본 발명의 일 측면에 따르면, 코너부가 상호 마주하고 있으며, 모서리가 상호 대향되도록 인접하게 배치된 복수의 단열부재, 상호 대향된 상기 복수의 단열부재 모서리에 양단부가 각각 지지된 지지부재와 상기 지지부재에 결합되어 지지된 금속재질의 결합부재를 포함하는 모서리패널; 및 상기 복수의 단열부재에 각각 지지되어 있으며, 상기 결합부재와 각각 용접으로 결합되는 금속재질로 이루어진 복수의 방벽부재를 포함하는 액화천연가스 저장탱크의 방벽 구조체가 제공된다.According to an aspect of the present invention, the corners face each other, a plurality of heat insulating members disposed adjacently so that the edges are opposed to each other, the support member and the support member each of which is supported at both ends at the edges of the plurality of heat insulating members facing each other An edge panel including a coupling member of a metal material coupled to and supported by the support member; And a plurality of barrier members each supported by the plurality of heat insulating members, the barrier members including a plurality of barrier members each welded to the coupling member.

상기 결합부재는 리본 형상의 금속시트를 포함하고, 상기 지지부재는 상기 금속시트에 결합되어 일체로 형성될 수 있다.The coupling member may include a ribbon-shaped metal sheet, and the support member may be integrally formed by being coupled to the metal sheet.

상기 지지부재는, 복수의 지지블록을 포함하고, 상기 복수의 지지블록은 상기 금속시트의 길이방향으로 연속적으로 배치될 수 있다.The support member may include a plurality of support blocks, and the plurality of support blocks may be continuously disposed in the longitudinal direction of the metal sheet.

상기 지지부재는, 상기 결합부재가 용접되는 영역에 상응하여 배치된 금속판을 더 포함할 수 있다.The support member may further include a metal plate disposed corresponding to a region in which the coupling member is welded.

상기 복수의 단열부재에는, 모서리 영역에는 상기 결합부재가 삽입되어 안착될 수 있도록, 각각 내측으로 함몰된 단차부가 형성될 수 있다.In the plurality of heat insulating members, a stepped portion recessed inward may be formed in the corner region so that the coupling member is inserted and seated.

또한, 각 단열부재의 코너부에 지지되어 있으며, 상면에 금속재질의 연결부재가 구비된 코너패널을 더 포함할 수 있다.In addition, it is supported by the corner portion of each of the heat insulating member, the upper surface may further include a corner panel provided with a metal connecting member.

상기 결합부재는, 상기 코너패널의 연결부재를 커버하도록 연장되고, 상기 코너패널의 결합부재에 용접으로 결합될 수 있다.The coupling member may extend to cover the connection member of the corner panel, and may be welded to the coupling member of the corner panel.

또한, 본 발명의 또 다른 측면에 따르면, 각각 금속재질의 방벽부재를 지지하고 있는 복수의 단열부재를 인접하는 단열부재와 모서리가 대향되도록 저장탱크의 지지벽에 설치하는 단계, 일면에 금속재질의 결합부재가 구비된 모서리패널을 제공하는 단계, 상호 대향된 단열부재의 모서리에 모서리패널의 양단부가 각각 지지되고 상기 모서리패널의 결합부재가 상기 방벽부재와 접하도록, 상기 단열부재와 상기 방벽부재 사이에 모서리패널을 개재시키는 단계, 상기 모서리패널의 결합부재와 상기 방벽부재를 용접하는 단계를 포함하는 액화천연가스 저장탱크의 방벽 구조체 설치방법이 제공된다.In addition, according to another aspect of the invention, the step of installing a plurality of heat insulating members each supporting the barrier member of the metal material on the support wall of the storage tank so that the edges and the adjacent heat insulating member facing, one side of the metal material Providing an edge panel provided with a coupling member, the both ends of the edge panel is supported on the edges of the mutually opposing heat insulating members, respectively, and the coupling member of the edge panel is in contact with the barrier member, between the heat insulating member and the barrier member Provided is a method for installing a barrier structure of a LNG storage tank including interposing an edge panel at the edge panel and welding the coupling member of the edge panel and the barrier member.

상기 모서리패널 개재단계는, 상기 단열부재의 모서리 영역에서 내측으로 함몰된 단차부와 상기 단열부재의 방벽부재가 형성하는 틈으로 상기 모서리패널을 삽입하는 단계를 포함할 수 있다.The corner panel interposing step may include inserting the corner panel into a gap formed by a stepped portion recessed inward in the corner region of the heat insulating member and a barrier member of the heat insulating member.

상기 단열부재 설치단계는, 상기 각 단열부재의 코너부가 상호 마주하도록 복수의 단열부재를 설치하는 단계를 포함하고, 일면에 금속재질의 연결부재가 구비된 코너패널을 제공하는 단계, 상기 각 단열부재의 코너부에 코너패널이 지지되고 상기 코너패널의 연결부재가 상기 방벽부재와 접하도록, 상기 단열부재와 상기 방벽부재 사이에 코너패널을 개재시키는 단계를 더 포함하고, 상기 용접단계에서는, 상기 코너패널의 연결부재와 상기 방벽부재를 용접하는 단계를 포함할 수 있다.
The step of installing the heat insulating member includes the step of installing a plurality of heat insulating members such that the corners of each heat insulating member face each other, providing a corner panel with a metal connecting member on one surface, each of the heat insulating members And interposing a corner panel between the heat insulating member and the barrier member so that the corner panel is supported at the corner portion of the corner panel and the connection member of the corner panel is in contact with the barrier member. And welding the connection member and the barrier member of the panel.

본 발명의 실시예들에 따르면, 접착제를 이용하지 않고도 2차 방벽을 설치함으로써, 2차 방벽의 설치시간을 단축할 수 있다.According to embodiments of the present invention, by installing the secondary barrier without using an adhesive, it is possible to shorten the installation time of the secondary barrier.

또한, 용접으로 2차 방벽을 구성하는 부재들을 결합시키는 구조를 가짐으로써, 자동 용접장치를 이용하여 균일한 품질의 2차 방벽을 형성할 수 있다.
In addition, by having a structure for joining the members constituting the secondary barrier by welding, it is possible to form a secondary barrier of uniform quality using an automatic welding device.

도 1 및 도 2는 종래의 멤브레인형 액화천연가스 저장탱크의 구조를 나타내는 도면.
도 3은 본 발명의 일 실시예에 따른 액화천연가스 저장탱크의 방벽 구조체를 나타낸 도면.
도 4 및 도 5는 일 실시예에 따른 액화천연가스 저장탱크의 방벽 구조체에서 지지부재 및 결합부재를 나타낸 도면.
도 6은 본 발명의 일 실시예에 따른 액화천연가스 저장탱크의 방벽 구조체의 설치방법을 나타낸 순서도.
도 7은 본 발명의 일 실시예에 따른 액화천연가스 저장탱크의 방벽 구조체의 설치방법에서 모서리패널 개재단계를 설명하는 도면.
도 8 내지 도 11은 발명의 다른 실시예에 따른 액화천연가스 저장탱크의 방벽 구조체 및 설치방법을 설명하는 도면.1 and 2 is a view showing the structure of a conventional membrane-type liquefied natural gas storage tank.
3 is a view showing a barrier structure of a liquefied natural gas storage tank according to an embodiment of the present invention.
4 and 5 are views showing the support member and the coupling member in the barrier structure of the liquefied natural gas storage tank according to an embodiment.
6 is a flow chart showing a method of installing a barrier structure of a liquefied natural gas storage tank according to an embodiment of the present invention.
7 is a view for explaining a corner panel interposing step in the installation method of the barrier structure of the liquefied natural gas storage tank according to an embodiment of the present invention.
8 to 11 is a view for explaining the barrier structure and installation method of the liquefied natural gas storage tank according to another embodiment of the present invention.

이하, 본 발명의 바람직한 실시예를 첨부도면을 참조하여 상세히 설명하기로 하며, 첨부 도면을 참조하여 설명함에 있어, 동일하거나 대응하는 구성 요소는 동일하거나 대응하는 도면번호를 부여하고 이에 대한 중복되는 설명은 생략하기로 한다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or corresponding parts throughout the several views, Is omitted.

도 3은 본 발명의 일 실시예에 따른 액화천연가스 저장탱크의 방벽 구조체를 나타낸 도면이다.3 is a view showing a barrier structure of a liquefied natural gas storage tank according to an embodiment of the present invention.

본 발명의 일 실시예에 따른 액화천연가스 저장탱크의 방벽 구조체는, 단열부재(12, 14), 지지부재(20), 결합부재(25) 및 방벽부재(32, 34)를 포함한다.
Barrier structure of the liquefied natural gas storage tank according to an embodiment of the present invention, the heat insulating member 12, 14, the support member 20, the coupling member 25 and the barrier member (32, 34).

단열부재(12, 14)는 방벽과 선체 사이를 단열시키는 부분으로, 단열성능이 우수한 폴리우레탄폼 등과 같은 재질로 이루어진다. 본 실시예에서는 복수의 단열부재(12, 14)가 선체의 내벽에 연속적으로 인접 배치된다. 그리고, 인접하는 단열부재(12, 14)는 서로 모서리가 대향되게 배치된다.The heat insulating members 12 and 14 are portions which insulate between the barrier and the hull, and are made of a material such as polyurethane foam having excellent heat insulating performance. In this embodiment, a plurality of heat insulating members 12 and 14 are continuously adjacent to the inner wall of the hull. In addition, adjacent heat insulating members 12 and 14 are disposed so that edges thereof face each other.

도 3에 나타난 바와 같이, 본 실시예의 단열부재(12, 14)는 멤브레인형 액화천연가스 저장탱크에서 2차 방벽과 선체 내벽을 단열시키는 하부 단열부재로서, 모서리가 상호 대향되게 인접하여 설치된 제1 단열부재(12) 및 제2 단열부재(14)를 포함한다. As shown in FIG. 3, the heat insulating members 12 and 14 of the present embodiment are lower insulating members which insulate the secondary barrier and the inner wall of the hull in a membrane type LNG storage tank, and have first corners adjacent to each other facing each other. Insulating member 12 and the second insulating member 14 is included.

이 때, 제1 단열부재(12) 및 제2 단열부재(14) 사이에는 글래스울 등의 충진재가 매워질 수 있으며, 제1 단열부재(12) 및 제2 단열부재(14) 위에는 1차 방벽을 지지하기 위하여 상부 단열부재(52, 54)가 배치될 수 있다.In this case, a filler such as glass wool may be filled between the first heat insulating member 12 and the second heat insulating member 14, and the primary barrier may be disposed on the first heat insulating member 12 and the second heat insulating member 14. Upper insulating members 52 and 54 may be disposed to support the upper and lower insulating members.

한편, 본 실시예에서 서로 대향된 단열부재(12, 14)의 모서리 영역에는 내측으로 함몰된 단차부(12a, 14a)가 형성되어서, 후술할 지지부재(20) 및 결합부재(25)가 삽입되어 안착되는 공간을 형성할 수 있다. Meanwhile, in the present embodiment, stepped portions 12a and 14a recessed inward are formed in the corner regions of the heat insulating members 12 and 14 facing each other, so that the supporting member 20 and the coupling member 25 to be described later are inserted. Can form a space to be seated.

이 때, 단열부재(12, 14)의 측면으로 지지부재(20) 및 결합부재(25)가 용이하게 삽입될 수 있도록, 단차부(12a, 14a)를 형성하는 모서리는 모따기될 수 있다. 즉, 단차부(12a, 14a)를 형성하는 모서리를 깎아서 지지부재(20) 및 결합부재(25)가 삽입되는 입구면적을 넓히고, 모따기로 형성된 경사를 따라서 지지부재(20) 및 결합부재(25)를 용이하게 안착시킬 수 있다. At this time, the edges forming the stepped portions 12a and 14a may be chamfered so that the support member 20 and the coupling member 25 may be easily inserted into the side surfaces of the heat insulating members 12 and 14. That is, by cutting off the corners forming the stepped portions 12a and 14a, the entrance area into which the support member 20 and the coupling member 25 are inserted is widened, and the support member 20 and the coupling member 25 are inclined along the inclination formed by the chamfer. ) Can be easily mounted.

또한, 단차부(12a, 14a)의 측면을 상부로 갈수록 넓어지는 경사면 형태로 형성함으로써, 상술한 모따기와 동일한 기능을 수행할 수도 있다.
In addition, the side surfaces of the stepped portions 12a and 14a may be formed in an inclined surface shape that becomes wider toward the upper portion, thereby performing the same function as the above-described chamfer.

지지부재(20)는 복수의 단열부재(12, 14) 사이에 배치되어 후술할 결합부재(25)를 지지하는 부분이다. 이를 위해, 지지부재(20)의 양단부는 인접하는 복수의 단열부재(12, 14) 모서리에 나누어져 각각 지지된다.The support member 20 is disposed between the plurality of heat insulating members 12 and 14 to support the coupling member 25 to be described later. To this end, both ends of the support member 20 are divided by the edges of the plurality of adjacent heat insulating members 12 and 14 and are respectively supported.

도 3에 나타난 바와 같이, 본 실시예의 지지부재(20)는 상호 모서리가 대향되는 제1 단열부재(12) 및 제2 단열부재(14)에 양단부가 나누어져 지지된다. 즉, 지지부재(20)의 일단부는 제1 단열부재(12)의 모서리 영역에 지지되고, 지지부재(20)의 타단부는 제2 단열부재(14)의 모서리 영역에 지지된다. As shown in FIG. 3, both ends of the support member 20 of the present embodiment are divided and supported by the first heat insulating member 12 and the second heat insulating member 14 having opposite edges. That is, one end of the support member 20 is supported in the corner region of the first heat insulation member 12, and the other end of the support member 20 is supported in the corner region of the second heat insulation member 14.

이 때, 본 실시예의 지지부재(20)는 용접(40)되는 결합부재(25)를 지지할 수 있도록, 지지부재(20)는 결합부재(25)가 용접되는 영역에 상응하여 배치된 금속판(21b)을 포함할 수 있다. At this time, the support member 20 of the present embodiment can support the coupling member 25 to be welded 40, the support member 20 is a metal plate (corresponding to the region to which the coupling member 25 is welded) ( 21b).

도 4 및 도 5는 일 실시예에 따른 액화천연가스 저장탱크의 방벽 구조체에서 지지부재 및 결합부재를 나타낸 도면이다.4 and 5 are views showing the support member and the coupling member in the barrier structure of the liquefied natural gas storage tank according to an embodiment.

도 4 및 도 5에 나타난 바와 같이, 본 실시예의 지지부재(20)는 복수의 지지블록(21)으로 이루어지며, 각 지지블록(21)은 플라이우드(21a)에 금속판(21b)이 결합된 구조로 형성될 수 있다. 구체적으로, 결합부재(25)가 용접되는 영역에 상응하여 플라이우드(21a)에 오목한 홈부를 형성하고, 홈부에 용접열에 견딜 수 있는 금속판(21b)을 배치할 수 있다.4 and 5, the support member 20 of the present embodiment is composed of a plurality of support blocks 21, each support block 21 is a metal plate 21b is coupled to the plywood 21a It may be formed into a structure. Specifically, a recessed recessed portion may be formed in the plywood 21a corresponding to a region to which the coupling member 25 is welded, and a metal plate 21b capable of withstanding welding heat may be disposed in the recessed portion.

본 발명의 일 실시예에 따르면, 금속판(21b)과 플라이우드(21a)간에는 리벳을 이용하여 결합할 수 있으며, 또한 결합부재(25)와 지지블록(21)(더욱 상세하게는, 결합부재(25)와 플라이우드(21b)의 양측단)도 리벳을 이용하여 결합할 수 있다. 여기서, 리벳을 이용한 결합은 일 례이며, 후술하는 모서리패널(26)이 굽힘이 가능할 수 있다면, 공지된 다양한 결합수단이 적용될 수 있다.According to an embodiment of the present invention, the metal plate 21b and the plywood 21a may be coupled using rivets, and the coupling member 25 and the support block 21 (more specifically, the coupling member ( 25) and both ends of the plywood 21b) may also be combined using rivets. Here, the coupling using the rivet is an example, if the edge panel 26 to be described later can be bent, a variety of known coupling means may be applied.

또한, 후술하는 모서리패널(26)의 굽힘이 가능하다면, 결합부재(25)와 금속판(21b)간에도 리벳 등을 이용하여 결합하는 실시예도 가능할 수 있으며, 본 발명이 적용되는 환경에 따라 다양한 결합수단이 적용될 수 있다.
In addition, if the bending of the edge panel 26 to be described later, the embodiment may be coupled between the coupling member 25 and the metal plate 21b using a rivet, etc., various coupling means according to the environment to which the present invention is applied This can be applied.

결합부재(25)는 방벽의 일부로서 후술할 방벽부재(32, 34)를 연결하는 부분이다. 결합부재(25)는 방벽부재(32, 34)와 용접(40)으로 결합될 수 있도록 금속재질로 이루어지며, 복수의 단열부재(12, 14) 사이에서 방벽부재(32, 34)를 연결할 수 있도록 지지부재(20)에 안착되어 지지된다.Coupling member 25 is a portion connecting the barrier members 32 and 34 to be described later as part of the barrier. Coupling member 25 is made of a metal material to be coupled to the barrier member (32, 34) and the welding 40, it is possible to connect the barrier member (32, 34) between a plurality of heat insulating members (12, 14). It is seated on the support member 20 so as to be supported.

도 3에 나타난 바와 같이, 본 실시예의 결합부재(25)는 금속시트를 포함하며, 지지부재(20)와 일체로 형성될 수 있다. 이에 따라, 지지부재(20)와 결합부재(25)는 하나의 패널형태인 모서리패널(26)이 되어서 설치가 용이해질 수 있다.As shown in FIG. 3, the coupling member 25 of the present embodiment includes a metal sheet and may be integrally formed with the support member 20. Accordingly, the support member 20 and the coupling member 25 may be an edge panel 26 having a single panel form, and thus may be easily installed.

도 4에 나타난 바와 같이, 본 실시예의 결합부재(25)로는 단열부재의 모서리를 따라 길게 연장된 리본 형상의 금속시트가 사용될 수 있다. 이 때, 지지부재(20)는 복수의 지지블록(21)으로 이루어지고 지지블록(21)은 금속시트의 길이방향으로 연속적으로 배치될 수 있다. As shown in Figure 4, the coupling member 25 of the present embodiment may be used a ribbon-shaped metal sheet extending along the edge of the heat insulating member. At this time, the support member 20 is composed of a plurality of support blocks 21 and the support block 21 may be continuously disposed in the longitudinal direction of the metal sheet.

이에 따라, 도 5에 나타난 바와 같이, 금속시트와 복수의 지지블록(21)으로 이루어진 모서리패널(26)은 굽힘이 가능하여 설치 및 운반이 자유로운 장점이 있다.
Accordingly, as shown in Figure 5, the edge panel 26 made of a metal sheet and a plurality of support blocks 21 has the advantage that the installation and transport is free to be bent.

방벽부재(32, 34)는 방벽의 대부분을 구성하는 부분으로, 단열부재(12, 14)에 지지되고 결합부재(25)에 의해 각각이 연결된다. 특히, 본 실시예의 방벽부재(32, 34)는 결합부재(25)와 용접(40)에 의해 결합되어 방벽을 구성하는 것을 특징으로 하며 이를 위해 금속재질로 이루어진다.The barrier members 32 and 34 constitute a part of the barrier, and are supported by the heat insulating members 12 and 14 and connected to each other by the coupling member 25. In particular, the barrier members (32, 34) of the present embodiment is characterized by constituting the barrier is coupled by the coupling member 25 and the welding 40 is made of a metal material for this purpose.

도 3에 나타난 바와 같이, 본 실시예에서 액화천연가스 저장탱크의 방벽은 2차 방벽으로서, 금속시트로 이루어진 제1 방벽부재(32) 및 제2 방벽부재(34)는 각각 제1 단열부재(12) 및 제2 단열부재(14)에 각각 지지된다. 그리고, 제1 방벽부재(32)의 단부 및 제2 방벽부재(34)의 단부는, 방벽부재(32, 34) 사이에 배치된 결합부재(25)와 접하게 된다. As shown in FIG. 3, the barrier of the liquefied natural gas storage tank in the present embodiment is a secondary barrier, and the first barrier member 32 and the second barrier member 34 made of a metal sheet are respectively formed of a first heat insulating member ( 12) and the second heat insulating member 14, respectively. The end of the first barrier member 32 and the end of the second barrier member 34 are in contact with the coupling member 25 disposed between the barrier members 32 and 34.

이에 따라, 제1 방벽부재(32)의 단부 및 제2 방벽부재(34)의 단부는 결합부재(25)와 용접(40)되어 결합될 수 있다. 즉, 제1 방벽부재(32), 제2 방벽부재(34) 및 결합부재(25)가 용접(40)으로 결합되어 2차 방벽을 형성할 수 있다.
Accordingly, the end of the first barrier member 32 and the end of the second barrier member 34 may be welded to the coupling member 25 to be coupled to each other. That is, the first barrier member 32, the second barrier member 34, and the coupling member 25 may be coupled by welding 40 to form a secondary barrier.

상술한 바와 같이 본 실시예에 따른 액화천연가스 저장탱크의 방벽 구조체는, 접착제를 이용하지 않고 용접(40)으로 2차 방벽을 설치하는 구조를 가짐으로써 2차 방벽의 설치시간을 단축할 수 있다. 또한, 용접(40)에는 자동용접(40)장치의 활용이 가능하므로 균일한 품질로 2차 방벽을 형성할 수 있다.
As described above, the barrier structure of the liquefied natural gas storage tank according to the present embodiment can shorten the installation time of the secondary barrier by having the structure of installing the secondary barrier by welding 40 without using an adhesive. . In addition, since the welding 40 can utilize the automatic welding 40 device, a secondary barrier can be formed with uniform quality.

다음으로 상술한 액화천연가스 저장탱크의 방벽 구조체를 설치하는 방법을 구체적으로 설명한다.Next, a method of installing the barrier structure of the liquefied natural gas storage tank described above will be described in detail.

도 6은 본 발명의 일 실시예에 따른 액화천연가스 저장탱크의 방벽 구조체의 설치방법을 나타낸 순서도이다.6 is a flowchart illustrating a method of installing a barrier structure of a liquefied natural gas storage tank according to an embodiment of the present invention.

본 실시예에 따른 액화천연가스 저장탱크의 방벽 구조체의 설치방법은 단열부재 설치단계(S110), 모서리패널 제공단계(S120), 모서리패널 개재단계(S130) 및 방벽부재 용접단계(S140)를 포함한다.
The installation method of the barrier structure of the liquefied natural gas storage tank according to the present embodiment includes a heat insulation member installation step (S110), the edge panel providing step (S120), the edge panel interposition step (S130) and the barrier member welding step (S140). do.

단열부재 설치단계(S110)에서는 각각 금속재질의 방벽부재(32, 34)를 지지하고 있는 복수의 단열부재(12, 14)를, 인접하는 단열부재(12, 14)와 모서리가 대향되도록 저장탱크의 지지벽에 설치한다.In the heat insulating member installation step (S110), the plurality of heat insulating members 12 and 14 supporting the metal barrier members 32 and 34, respectively, and the storage tank so that the edges face the adjacent heat insulating members 12 and 14. On the support wall

도 3에 나타난 바와 같이, 본 실시예에서는 단열부재(12, 14)의 상면에 금속시트로 이루어진 방벽부재(32, 34)를 부착한 후에, 단열부재(12, 14)를 선체의 내벽에 연속적으로 인접하게 설치한다. 이 때, 인접하는 단열부재(12, 14)는 서로 모서리가 대향되게 배치시킨다.As shown in FIG. 3, in the present embodiment, after the barrier members 32 and 34 made of metal sheets are attached to the upper surfaces of the heat insulating members 12 and 14, the heat insulating members 12 and 14 are continuously connected to the inner wall of the hull. Install adjacently. At this time, adjacent heat insulating members 12 and 14 are disposed so that the edges thereof face each other.

한편, 방벽부재(32, 34)는 단열부재(12, 14)가 배치되어 설치된 후에 단열부재(12, 14)에 부착되어 결합될 수도 있다.
Meanwhile, the barrier members 32 and 34 may be attached to the heat insulating members 12 and 14 after the heat insulating members 12 and 14 are disposed and installed.

모서리패널 제공단계(S120)에서는 일면에 금속재질의 결합부재(25)가 구비된 모서리패널(26)을 준비한다. In the edge panel providing step (S120), a corner panel 26 having a coupling member 25 made of metal on one surface is prepared.

도 4 및 도 5에 나타난 바와 같이, 본 실시예의 모서리패널(26)은 리본 형상의 금속시트와 금속시트의 길이방향으로 연속적으로 배치된 지지블록(21)이 일체로 결합된 형태로 형성된다. 이 때, 금속시트는 방벽부재(32, 34)와 용접되는 결합부재(25)가 된다.
As shown in Figure 4 and 5, the edge panel 26 of the present embodiment is formed in a shape in which the ribbon-shaped metal sheet and the support block 21 continuously arranged in the longitudinal direction of the metal sheet are integrally combined. At this time, the metal sheet is a coupling member 25 welded to the barrier members 32 and 34.

모서리패널 개재단계(S130)에서는 단열부재(12, 14)와 방벽부재(32, 34) 사이에 모서리패널(26)을 개재시킨다.In the corner panel interposing step S130, the corner panel 26 is interposed between the heat insulating members 12 and 14 and the barrier members 32 and 34.

도 7은 본 발명의 일 실시예에 따른 액화천연가스 저장탱크의 방벽 구조체의 설치방법에서 모서리패널 개재단계를 설명하는 도면이다.7 is a view for explaining the corner panel interposing step in the installation method of the barrier structure of the liquefied natural gas storage tank according to an embodiment of the present invention.

도 7에 나타난 바와 같이, 본 실시예에서는 상호 대향된 단열부재(12, 14)의 모서리에 모서리패널(26)의 양단부가 각각 나누어 지지되도록, 모서리패널(26)을 단열부재와 방벽부재(32, 34) 사이에 삽입한다. 이에 따라, 모서리패널(26)의 상면에 배치된 결합부재(25)가 단열부재(12, 14)와 접하게 된다.As shown in FIG. 7, in the present embodiment, the edge panel 26 is formed of the heat insulating member and the barrier member 32 so that both ends of the edge panel 26 are separately supported at the edges of the heat insulating members 12 and 14 opposed to each other. , 34). Accordingly, the coupling member 25 disposed on the upper surface of the edge panel 26 is in contact with the heat insulating members 12 and 14.

특히, 도 5에 나타난 바와 같이, 본 실시예의 모서리패널(26)은 금속시트와 분절된 복수의 지지블록(21)과 결합되어 있어서 굽힘이 용이하므로, 단열부재(12, 14)의 측면에서 단열부재(12, 14)와 방벽부재(32, 34) 사이에 용이하게 삽입될 수 있다.
In particular, as shown in Figure 5, the edge panel 26 of the present embodiment is coupled with a plurality of support blocks 21 segmented with a metal sheet, so that it is easy to bend, the heat insulation from the side of the heat insulating member (12, 14) It can be easily inserted between the members 12 and 14 and the barrier members 32 and 34.

방벽부재 용접단계(S140)에서는 모서리패널(26)의 결합부재(25)와 방벽부재(32, 34)를 용접(40)한다.In the barrier member welding step (S140), the coupling member 25 and the barrier members 32 and 34 of the edge panel 26 are welded 40.

도 7에 나타난 바와 같이, 본 실시예에서는 단열부재(12, 14)와 방벽부재(32, 34) 사이로 모서리 패널이 삽입되므로, 모서리패널(26)의 결합부재(25)와 방벽부재(32, 34)는 서로 접하게 된다. As shown in FIG. 7, since the edge panel is inserted between the heat insulating members 12 and 14 and the barrier members 32 and 34, the coupling member 25 and the barrier member 32 of the edge panel 26 are inserted. 34) come into contact with each other.

이에 따라, 도 3에 나타난 바와 같이, 방벽부재(32, 34)의 단부를 결합부재(25)에 용접(40)하여 연결함으로써 2차 방벽을 형성할 수 있다. 이 때, 방벽부재(32, 34)의 단부와 결합부재(25)의 용접작업은 자동 용접장치에 의해 이루어질 수 있다.
Accordingly, as shown in FIG. 3, the secondary barriers can be formed by welding the end portions of the barrier members 32 and 34 to the coupling member 25 by welding 40. At this time, the welding operation of the end of the barrier member (32, 34) and the coupling member 25 can be made by an automatic welding device.

이하에서는 다른 실시예에 따른 액화천연가스 저장탱크의 방벽 구조체 및 그 설치방법을 설명한다.Hereinafter, a barrier structure and a method of installing the liquefied natural gas storage tank according to another embodiment will be described.

도 8 내지 도 11은 발명의 다른 실시예에 따른 액화천연가스 저장탱크의 방벽 구조체 및 설치방법을 설명하는 도면이다.8 to 11 is a view for explaining the barrier structure and installation method of the liquefied natural gas storage tank according to another embodiment of the present invention.

본 실시예에 따른 액화천연가스 저장탱크의 방벽 구조체에서는 복수의 단열부재(12, 14, 16, 18)의 코너부(12b, 14b, 16b, 18b)가 상호 마주하게 설치되어서, 코너부(12b, 14b, 16b, 18b)에 모서리패널(26)과 연결되는 코너패널(28)이 추가로 설치되는 점에서 상술한 실시예와 차이가 있다.In the barrier structure of the LNG storage tank according to the present embodiment, the corner portions 12b, 14b, 16b, and 18b of the plurality of heat insulating members 12, 14, 16, and 18 are disposed to face each other, and thus the corner portion 12b. , 14b, 16b, and 18b are different from the above-described embodiment in that a corner panel 28 connected to the corner panel 26 is additionally installed.

이에 따라, 상술한 단열부재(12, 14, 16, 18) 및 모서리패널(26)에 대한 구체적 설명은 생략하고 코너패널(28)을 중심으로 설명한다.Accordingly, detailed descriptions of the above-described heat insulating members 12, 14, 16, and 18 and the corner panel 26 will be omitted and the center panel 28 will be described.

도 8에 나타난 바와 같이, 본 실시예에서는 4개의 단열부재(12, 14, 16, 18)가 서로 코너부(12b, 14b, 16b, 18b)를 마주하고 있으며, 각 단열부재(12, 14, 16, 18)는 인접하는 단열부재(12, 14, 16, 18)와 모서리가 대향되게 배치되어 있다. As shown in FIG. 8, in this embodiment, four heat insulating members 12, 14, 16, and 18 face each other with corner portions 12b, 14b, 16b, and 18b, and each heat insulating member 12, 14, 16 and 18 are arrange | positioned so that the edge may face the adjacent heat insulating members 12, 14, 16, and 18. As shown in FIG.

그리고, 도 10에 나타난 바와 같이, 각 단열부재(12, 14, 16, 18)에는 방벽부재(32, 34, 36, 38)가 지지되어 있어서, 4개의 방벽부재(32, 34, 36, 38) 사이에는 십자형의 틈이 생기게 된다. 이에 따라, 모서리패널(26) 4개를 사용하여 방벽부재(32, 34, 36, 38)를 연결할 경우에 십자형의 교차부에서 4개의 모서리패널(26)이 서로 겹치게 된다.As shown in FIG. 10, barrier members 32, 34, 36, and 38 are supported on each of the heat insulating members 12, 14, 16, and 18, so that four barrier members 32, 34, 36, and 38 are supported. There is a cross-shaped gap between). Accordingly, when connecting the barrier members 32, 34, 36, 38 using four corner panels 26, the four corner panels 26 overlap each other at the cross-shaped intersections.

따라서, 본 실시예에서는 모서리패널(26)이 만나게 되는 단열부재(12, 14, 16, 18)의 코너부(12b, 14b, 16b, 18b)에 모서리패널(26)들을 연결해주는 코너패널(28)을 설치한다. 이를 위해, 코너패널(28)은 상호 마주하고 있는 단열부재(12, 14, 16, 18)의 코너부(12b, 14b, 16b, 18b)에 각각 지지되는 형태로 설치될 수 있다.Accordingly, in the present embodiment, the corner panel 28 connecting the corner panels 26 to the corner portions 12b, 14b, 16b, and 18b of the heat insulating members 12, 14, 16, and 18 where the corner panels 26 meet. Install). To this end, the corner panel 28 may be installed in a form supported by the corner portions 12b, 14b, 16b, and 18b of the heat insulating members 12, 14, 16, and 18 facing each other.

구체적으로, 단열부재(12, 14, 16, 18)의 코너부(12b, 14b, 16b, 18b)가 노출되도록, 코너부(12b, 14b, 16b, 18b)에 배치된 방벽부재(32, 34, 36, 38) 및 모서리패널(26)의 결합부재(25)를 외측으로 젖힌다. 그리고, 노출된 코너부(12b, 14b, 16b, 18b)에 코너패널(28)을 안착시키고, 결합부재(25)와 방벽부재(32, 34, 36, 38)를 원상태로 펼친다. 이에 따라, 단열부재(12, 14, 16, 18)의 코너부(12b, 14b, 16b, 18b)에 코너패널(28)이 지지되고, 코너패널(28)에는 결합부재(25) 및 방벽부재(32, 34, 36, 38)의 단부가 차례로 지지되게 된다.Specifically, the barrier members 32 and 34 disposed in the corner portions 12b, 14b, 16b and 18b so that the corner portions 12b, 14b, 16b and 18b of the heat insulating members 12, 14, 16 and 18 are exposed. , 36, 38 and the engaging member 25 of the edge panel 26 is folded out. Then, the corner panel 28 is seated on the exposed corner portions 12b, 14b, 16b, and 18b, and the coupling member 25 and the barrier members 32, 34, 36, and 38 are unfolded. Accordingly, the corner panel 28 is supported by the corner portions 12b, 14b, 16b, and 18b of the heat insulating members 12, 14, 16, and 18, and the coupling member 25 and the barrier member are supported by the corner panel 28. End portions 32, 34, 36, 38 are supported in turn.

한편, 코너패널(28)은 방벽부재(32, 34, 36, 38) 및 모서리패널(26)의 결합부재(25)와 용접될 수 있도록 금속재질의 연결부재(28b)을 구비한다.Meanwhile, the corner panel 28 includes a barrier member 32, 34, 36, 38 and a connecting member 28b made of metal so as to be welded to the coupling member 25 of the corner panel 26.

도 9에 나타난 바와 같이, 본 실시예의 코너패널(28)은 금속판과 플라이우드(28a)가 결합된 형태로 이루어지고, 금속판이 연결부재(28b)가 된다. 이 때, 연결부재(28b) 일부를 커버하는 모서리패널(26)의 결합부재(25)와 연결부재(28b) 사이에 단차를 줄일 수 있도록, 연결부재(28b)의 중심영역은 돌출되게 형성될 수 있다. As shown in FIG. 9, the corner panel 28 of the present embodiment has a shape in which a metal plate and a plywood 28a are coupled to each other, and the metal plate becomes a connection member 28b. At this time, the center region of the connecting member 28b is formed to protrude so as to reduce the step between the coupling member 25 and the connecting member 28b of the edge panel 26 covering a part of the connecting member 28b. Can be.

본 실시예에서 코너패널(28)에 인접한 모서리패널(26)의 결합부재(25) 단부는 연장되어서, 코너패널(28)의 연결부재(28b) 가장자리 영역을 커버할 수 있다. 이 때, 본 실시예의 연결부재(28b)는 중심영역이 계단형으로 돌출되게 형성될 수 있다. 이에 따라, 도 11에 나타난 바와 같이, 연결부재(28b)의 가장자리 영역(즉, 계단형 구조의 아래 부분)에 결합부재(25)가 안착되고, 결합부재(25)의 단부와 연결부재(28b)의 돌출된 중심영역 측면이 서로 맞대어지게 되어서 결합부재(25)와 연결부재(28b) 사이의 단차를 줄일 수 있다.In this embodiment, the end portion of the coupling member 25 of the corner panel 26 adjacent to the corner panel 28 may extend to cover the edge region of the connection member 28b of the corner panel 28. At this time, the connection member 28b of the present embodiment may be formed so that the central region protrudes in a step shape. Accordingly, as shown in FIG. 11, the coupling member 25 is seated in the edge region of the coupling member 28b (that is, the lower portion of the stepped structure), and the end of the coupling member 25 and the coupling member 28b. Protruding central region side of the () is to be opposed to each other to reduce the step between the coupling member 25 and the connecting member (28b).

또한, 도 10에 나타난 바와 같이, 본 실시예의 코너패널(28)은 사각형 형태로 형성되고, 사각형 코너패널(28)의 각 코너는 각각 단열부재(12, 14, 16, 18)의 코너부(12b, 14b, 16b, 18b)에 지지된다. 이 때, 코너패널(28)의 연결부재(28b)가 방벽부재(32, 34, 36, 38)와 용접(40)되어 연결될 수 있도록, 코너패널(28)은 하부 단열부재(12, 14, 16, 18)와 방벽부재(32, 34, 36, 38) 사이에 개재되는 형태로 설치된다.In addition, as shown in Figure 10, the corner panel 28 of the present embodiment is formed in a rectangular shape, each corner of the rectangular corner panel 28 is a corner portion (11, 14, 16, 18) of the heat insulating member (12), respectively. 12b, 14b, 16b, 18b). At this time, the corner panel 28 is connected to the barrier member (32, 34, 36, 38) welded 40, the corner panel 28, the corner panel 28 is a lower heat insulating member (12, 14, 16, 18 and barrier members 32, 34, 36, 38 are installed in the form interposed.

그리고, 사각형 코너패널(28)의 각 측면에는 각각 모서리패널(26)이 인접하게 배치되어서, 코너패널(28)과 4개의 모서리패널(26)이 십자형으로 배치된다. 이 때, 코너패널(28)에 인접한 모서리패널(26)의 결합부재(25) 단부는 연장되어서, 코너패널(28)의 연결부재(28b) 일부를 커버할 수 있다.In addition, corner panels 26 are disposed adjacent to each side surface of the rectangular corner panel 28 so that the corner panel 28 and the four corner panels 26 are crosswise. In this case, an end portion of the coupling member 25 of the corner panel 26 adjacent to the corner panel 28 may extend to cover a portion of the connection member 28b of the corner panel 28.

이에 따라, 도 11에 나타난 바와 같이, 코너패널(28)의 연결부재(28b)와 모서리패널(26)의 결합부재(25)는 4개의 방벽부재(32, 34, 36, 38)를 지지하면서 연결하는 역할을 하게 된다. 따라서, 결합부재(25) 및 방벽부재(32, 34, 36, 38)의 단부를 용접하면 용접(40)에 의해 연결된 2차 방벽을 형성할 수 있다.
Accordingly, as shown in FIG. 11, the connecting member 28b of the corner panel 28 and the coupling member 25 of the corner panel 26 support four barrier members 32, 34, 36, and 38. It is the role of connecting. Thus, by welding the end portions of the coupling member 25 and the barrier members 32, 34, 36, 38, a secondary barrier connected by the welding 40 can be formed.

이상에서 본 발명의 실시예들에 대하여 설명하였으나, 본 발명의 사상은 본 명세서에 제시되는 실시 예에 제한되지 아니하며, 본 발명의 사상을 이해하는 당업자는 동일한 사상의 범위 내에서, 구성요소의 부가, 변경, 삭제, 추가 등에 의해서 다른 실시 예를 용이하게 제안할 수 있을 것이나, 이 또한 본 발명의 사상범위 내에 든다고 할 것이다.
While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

12, 14, 16, 18: 단열부재
20: 지지부재
21: 지지블록
25: 결합부재
26: 모서리패널
28: 코너패널
32, 34, 36, 38: 방벽부재
40: 용접12, 14, 16, 18: insulation member
20: support member
21: support block
25: coupling member
26: corner panel
28: corner panel
32, 34, 36, 38: barrier member
40: welding

Claims (10)

코너부가 상호 마주하고 있으며, 모서리가 상호 대향되도록 인접하게 배치된 복수의 단열부재;
상호 대향된 상기 복수의 단열부재 모서리에 양단부가 각각 지지된 지지부재와 상기 지지부재에 결합되어 지지된 금속재질의 결합부재를 포함하는 모서리 패널; 및
상기 복수의 단열부재에 각각 지지되어 있으며, 상기 결합부재와 각각 용접으로 결합되는 금속재질로 이루어진 복수의 방벽부재를 포함하는 액화천연가스 저장탱크의 방벽 구조체.
A plurality of heat insulating members facing each other and disposed adjacently such that corners face each other;
An edge panel including a support member having both ends supported at edges of the plurality of heat insulating members facing each other, and a coupling member made of a metal material coupled to and supported by the support member; And
A barrier structure of a liquefied natural gas storage tank, each of which is supported by the plurality of heat insulating members, and includes a plurality of barrier members each of which is joined to the coupling member by welding.
제1항에 있어서,
상기 결합부재는 리본 형상의 금속시트를 포함하고,
상기 지지부재는 상기 금속시트에 결합되어 일체로 형성된 것을 특징으로 하는 액화천연가스 저장탱크의 방벽 구조체.
The method of claim 1,
The coupling member includes a ribbon-shaped metal sheet,
The support member is a barrier structure of the liquefied natural gas storage tank, characterized in that formed integrally with the metal sheet.
제2항에 있어서,
상기 지지부재는, 복수의 지지블록을 포함하고,
상기 복수의 지지블록은 상기 금속시트의 길이방향으로 연속적으로 배치된 것을 특징으로 하는 액화천연가스 저장탱크의 방벽 구조체.
The method of claim 2,
The support member includes a plurality of support blocks,
The plurality of support blocks barrier structure of the liquefied natural gas storage tank, characterized in that arranged continuously in the longitudinal direction of the metal sheet.
제3항에 있어서,
상기 지지부재는,
상기 결합부재가 용접되는 영역에 상응하여 배치된 금속판을 더 포함하는 특징으로 하는 액화천연가스 저장탱크의 방벽 구조체.
The method of claim 3,
The support member,
The barrier structure of the liquefied natural gas storage tank further comprises a metal plate disposed corresponding to the area in which the coupling member is welded.
제1항에 있어서,
상기 복수의 단열부재에는,
모서리 영역에는 상기 결합부재가 삽입되어 안착될 수 있도록, 각각 내측으로 함몰된 단차부가 형성된 것을 특징으로 하는 액화천연가스 저장탱크의 방벽 구조체.
The method of claim 1,
In the plurality of heat insulating members,
Barrier structure of the liquefied natural gas storage tank, characterized in that the stepped portion is formed in each corner recessed inward, so that the coupling member is inserted into the seat.
제1항 내지 제5항 중 어느 하나의 항에 있어서,
상기 각 단열부재의 코너부에 지지되어 있으며, 상면에 금속재질의 연결부재가 구비된 코너패널을 더 포함하는 것을 특징으로 하는 액화천연가스 저장탱크의 방벽 구조체.
6. The method according to any one of claims 1 to 5,
Barrier structure of the liquefied natural gas storage tank further comprises a corner panel which is supported by the corner of each of the heat insulating members, the upper surface is provided with a metal connecting member.
제6항에 있어서,
상기 결합부재는,
상기 코너패널의 연결부재를 커버하도록 연장되고, 상기 코너패널의 결합부재에 용접으로 결합된 것을 특징으로 하는 액화천연가스 저장탱크의 방벽 구조체.
The method according to claim 6,
The coupling member
Barrier structure of the liquefied natural gas storage tank extending to cover the connection member of the corner panel, it is coupled to the coupling member of the corner panel by welding.
각각 금속재질의 방벽부재를 지지하고 있는 복수의 단열부재를 인접하는 단열부재와 모서리가 대향되도록 저장탱크의 지지벽에 설치하는 단계;
일면에 금속재질의 결합부재가 구비된 모서리패널을 제공하는 단계;
상호 대향된 단열부재의 모서리에 모서리패널의 양단부가 각각 지지되고 상기 모서리패널의 결합부재가 상기 방벽부재와 접하도록, 상기 단열부재와 상기 방벽부재 사이에 모서리패널을 개재시키는 단계; 및
상기 모서리패널의 결합부재와 상기 방벽부재를 용접하는 단계를 포함하는 액화천연가스 저장탱크의 방벽 구조체 설치방법.
Installing a plurality of heat insulating members each supporting a metal barrier member on a support wall of the storage tank such that edges thereof face the adjacent heat insulating members;
Providing a corner panel having a metal coupling member on one surface;
Interposing an edge panel between the heat insulating member and the barrier member such that both ends of the edge panel are supported at edges of the mutually opposing heat insulating members, and the coupling member of the edge panel is in contact with the barrier member; And
Barrier structure installation method of a liquefied natural gas storage tank comprising the step of welding the barrier member and the coupling member of the corner panel.
제8항에 있어서,
상기 모서리패널 개재단계는,
상기 단열부재의 모서리 영역에서 내측으로 함몰된 단차부와 상기 단열부재의 방벽부재가 형성하는 틈으로 상기 모서리패널을 삽입하는 단계를 포함하는 것을 특징으로 하는 액화천연가스 저장탱크의 방벽 구조체 설치방법.
9. The method of claim 8,
The corner panel interposing step,
And inserting the edge panel into a gap formed by the stepped portion recessed inward in the corner region of the heat insulating member and the barrier member of the heat insulating member.
제8항에 있어서,
상기 단열부재 설치단계는,
상기 각 단열부재의 코너부가 상호 마주하도록 복수의 단열부재를 설치하는 단계를 포함하고,
일면에 금속재질의 연결부재가 구비된 코너패널을 제공하는 단계; 및
상기 각 단열부재의 코너부에 코너패널이 지지되고 상기 코너패널의 연결부재가 상기 방벽부재와 접하도록, 상기 단열부재와 상기 방벽부재 사이에 코너패널을 개재시키는 단계를 더 포함하고,
상기 용접단계에서는,
상기 코너패널의 연결부재와 상기 방벽부재를 용접하는 단계를 포함하는 것을 특징으로 하는 액화천연가스 저장탱크의 방벽 구조체 설치방법.9. The method of claim 8,
The insulating member installation step,
And installing a plurality of heat insulating members such that corner portions of the heat insulating members face each other,
Providing a corner panel provided with a metal connecting member on one surface; And
And interposing a corner panel between the heat insulating member and the barrier member such that a corner panel is supported at a corner portion of each of the heat insulating members and the connection member of the corner panel is in contact with the barrier member.
In the welding step,
Barrier structure installation method of a liquefied natural gas storage tank comprising the step of welding the barrier member and the connecting member of the corner panel.
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