KR100731503B1 - Insulation system with embedded metallic insulation box for lng tank - Google Patents

Insulation system with embedded metallic insulation box for lng tank Download PDF

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KR100731503B1
KR100731503B1 KR1020060047902A KR20060047902A KR100731503B1 KR 100731503 B1 KR100731503 B1 KR 100731503B1 KR 1020060047902 A KR1020060047902 A KR 1020060047902A KR 20060047902 A KR20060047902 A KR 20060047902A KR 100731503 B1 KR100731503 B1 KR 100731503B1
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South Korea
Prior art keywords
insulation
urethane foam
main
secondary barrier
plate
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KR1020060047902A
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Korean (ko)
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한명섭
이철희
우한영
김대영
윤중근
소용신
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현대중공업 주식회사
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    • 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
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/12—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge with provision for thermal insulation
    • 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
    • B63B25/14—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed pressurised
    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/02—Wall construction
    • B65D90/06—Coverings, e.g. for insulating purposes
    • 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
    • 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

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

Abstract

An insulating system with a metallic insulation box for an LNG tank is provided to realize the insulating system of a single stage, and to reduce work time by simplifying an installing process by installing an insulation plate integrated with a secondary barrier. An insulating system with a metallic insulation box for an LNG tank includes a main insulation plate(10), a connecting insulation plate(20), a sealed metallic insulation box(30), an upper plate(50), and a primary barrier(60). The main insulation plate has upper urethane foam and a lower urethane foam forming a stage and formed in one body, and a lower plate at a lower surface, and is connected to a ship by a bolt. The connecting insulation plate is installed at an upper part of the lower urethane foam of the main insulation plate so as to be located between the upper urethane foams of the adjacent main insulation plates. The sealed metallic insulation box is inserted into the upper urethane foam of the main insulation plate and urethane foam of the connecting insulation plate, and has a secondary barrier formed at an upper surface integrally. The upper plate is installed at an upper part of the secondary barrier. The primary barrier is connected to the upper plate.

Description

고성능 금속재 단열상자 삽입형 액화천연가스 저장용기용 단열시스템{Insulation system with embedded metallic insulation box for LNG tank}Insulation system with embedded metallic insulation box for LNG tank

도 1 은 본 발명에 따른 단열판의 개략적 구성을 보인 예시도1 is an exemplary view showing a schematic configuration of a heat insulating plate according to the present invention

도 2 는 본 발명에 따른 단열판을 적용한 단열시스템의 개략적 구성을 보인 예시도2 is an exemplary view showing a schematic configuration of an insulation system to which the insulation plate according to the present invention is applied.

도 3 은 종래의 단열구조를 보인 예시도3 is an exemplary view showing a conventional heat insulation structure

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

(10) : 메인단열판 (11) : 상부 우레탄폼(10): main insulation plate (11): upper urethane foam

(12) : 하부 우레탄폼 (20) : 연결단열판(12): lower urethane foam (20): connecting insulation plate

(30) : 밀폐형 금속단열상자 (31) : 2차방벽(30): sealed metal insulation box (31): secondary barrier

(32) : 접촉대 (40) : 하부합판(32): contact table 40: lower plywood

(50) : 상부합판 (60) : 1차방벽50: upper plywood 60: primary barrier

(61) : 1차방벽 연결부 (70) : 볼트(61): primary barrier connection (70): bolt

(80) : 선체 (81) : 선체단열판 연결부(80): hull (81): hull insulation plate connection

(90) : 용접부위(90): welded area

본 발명은 고성능 금속재 단열상자 삽입형 액화천연가스 저장용기용 단열시스템에 관한 것으로, 상부면에 2차방벽을 구비하는 금속형 단열상자를 단열판내에 설치하고, 2차방벽 연결부위를 용접에 의해 밀봉할 수 있는 고성능 금속재 단열상자 삽입형 액화천연가스 저장용기용 단열시스템에 관한 것이다. The present invention relates to a thermal insulation system for a high-performance metal insulation box insertion type liquefied natural gas storage container, and to install a metal insulation box having a secondary barrier on the upper surface in the insulation plate, and to seal the secondary barrier connection by welding. The present invention relates to a thermal insulation system for a liquefied natural gas storage container inserted into a high-performance metal insulation box.

오늘날, 수소, 산소 및 천연가스와 같은 물질을 대량으로 저장 및 수송하기 위하여 주로 저온 액화방법을 이용하고 있는데 그러기 위하여 저온의 액화가스를 저장 수송하는 단열용기의 설계에 있어서 외부로부터의 열침입에 의한 액화가스의 비등을 방지하는 단열기술이 무엇보다도 중요하다.Today, the low temperature liquefaction method is mainly used to store and transport large quantities of substances such as hydrogen, oxygen and natural gas. Therefore, in the design of a thermal insulation container storing and transporting low temperature liquefied gas, The insulation technology to prevent the boiling of liquefied gas is important above all.

현재 상업적으로 고안 적용되고 있는 단열방법은 외부 단열방법과 내부 단열방법이 있으며, 상기 내부 단열방법은 용기 외함의 온도를 외기온도와 유사하게 제어할 수 있으므로, 저온용 소재의 적용과 같은 소재 사용에 제약이 없는 장점이 있다. 이와 같은 내부 단열방법에는 미국의 맥도널 더글라스사의 중간방벽구조(미국특허 제 484358 호)를 기초로 2중방벽 구조를 가지는 프랑스 지티티(GTT)사의 멤브레인형 단열시스템이 알려져 있다. Insulation methods currently commercially designed and applied include an external insulation method and an internal insulation method, and the internal insulation method can control the temperature of the container enclosure similarly to the outside temperature, thereby limiting the use of materials such as the application of low-temperature materials. There is no advantage to this. As such an internal insulation method, a membrane-type insulation system of GTT, France, which has a double barrier structure based on the middle barrier structure (US Patent No. 484358) of McDonald Douglas, USA, is known.

도 3 은 종래의 단열구조인 프랑스 지티티(GTT)사의 마크(Mark) Ⅲ형 단열구조를 도시한 것으로, 상기 단열시스템은 상부의 1차 단열판(100), 연결단열판(500), 하부의 2차 단열판(200) 그리고 스테인레스강으로 이루어진 1차 방 벽(300)과, 트리플렉스로 이루어진 2차방벽(400)의 이중 방벽구조로 구성되어 있으며, 이러한 단열시스템은 단열판을 단열용기 내벽에 설치할 때, 2차방벽의 접합부에서 기밀성을 확보할 목적으로 단열판 사이의 접합부를 트리플렉스라는 2차방벽 소재로 접착하고, 다시 그 위를 1차 단열판과 동일 재질의 연결판으로 작업하는 2단계 작업에 의해 설치되도록 되어 있어, 작업에 많은 시간이 소요될 뿐만 아니라, 2차방벽 접합부에서의 기밀성을 확보하는데 상당한 시공상의 주의를 필요로 하는 등 많은 문제점이 있었다. 3 shows a Mark III type insulation structure of GTT, France, which is a conventional insulation structure, wherein the insulation system includes an upper primary insulation plate 100, a connection insulation plate 500, and a lower portion 2. The primary insulation barrier 200 and the primary barrier 300 made of stainless steel, and the double barrier structure of the secondary barrier 400 made of triplex, such an insulation system when the insulation plate is installed on the inner wall of the insulation container In order to secure the airtightness at the junction of the secondary barrier, the joint between the insulation plates is bonded by a secondary barrier material called triplex, and then the two stages work on the connection plate made of the same material as the primary insulation plate. It is intended to be installed, not only takes a lot of time to work, but also has a number of problems, such as requiring considerable construction attention to ensure airtightness at the secondary barrier joint.

본 발명은 상기와 같은 문제점을 해소하기 위한 것으로, 그 목적은 금속형 단열상자가 폴리우레탄 폼내에 삽입된 단열판을 설치하고, 2차방벽을 용접에 의해 밀봉 연결하여 작업을 용이하게 함과 동시에, 단열시스템의 두께를 감소하고, 우수한 단열성 및 기밀성을 구비할 수 있는 고성능 금속재 단열상자 삽입형 액화천연가스 저장용기용 단열시스템을 제공하는 것이다. The present invention is to solve the above problems, the object is to install a heat insulating plate inserted into the polyurethane foam metal insulation box, and to facilitate the operation by sealing the secondary barrier by welding, It is to provide a thermal insulation system for a high-performance metal insulation box insertion type liquefied natural gas storage container that can reduce the thickness of the insulation system, and have excellent insulation and airtightness.

도 1 은 본 발명에 따른 단열판의 개략적 구성을 보인 예시도를, 도 2 는 본 발명에 따른 단열판을 적용한 단열시스템의 개략적 구성을 보인 예시도를 도시한 것으로, 본 발명은 액화천연가스 저장용기용 단열시스템에 있어서, 층을 이루고 일체형으로 형성된 상부 우레탄폼(11)과 하부 우레탄폼(12)을 구비하고 하부면에 하 부합판(40)이 설치되며 볼트(70)에 의해 선체(80) 및 선체단열판 연결부(81)에 연결되는 메인단열판(10)과, 상기 메인단열판의 상부 우레탄폼과 이에 인접하는 또다른 메인단열판의 상부 우레탄폼 사이에 위치하도록 메인단열판의 하부 우레탄폼 상부에 설치되는 연결단열판(20)과, 상기 메인단열판(10)의 상부 우레탄폼(11) 및 연결단열판(20)의 우레탐폼내에 삽입 설치되고, 끝단에 접촉대(32)가 상부방향으로 돌출형성된 2차방벽(31)이 상부면에 일체형으로 형성된 밀폐형 금속단열상자(30)와, 상기 2차방벽(31) 상부에 위치하도록 설치되는 상부합판(50)과, 상기 상부합판(50)에 연결되어 설치되는 1차방벽(60)을 포함하여 구성되며, 상기 메인단열판 2차방벽의 접촉대와 연결단열판 2차방벽의 접촉대를 1차 방벽과 동시에 용접에 의해 연결하여 1,2차방벽이 밀봉되도록 되어 있다. 1 is an exemplary view showing a schematic configuration of a heat insulating plate according to the present invention, Figure 2 shows an exemplary view showing a schematic configuration of an insulating system to which the heat insulating plate according to the present invention is applied, the present invention is for a liquefied natural gas storage container In the insulation system, the upper urethane foam (11) and the lower urethane foam (12) formed in one layer and integrally formed, and the lower mating plate (40) is installed on the lower surface of the hull (80) and the bolt (70) The connection is installed on the upper urethane foam of the main insulation board so as to be located between the main insulation board 10 connected to the hull insulation board connecting portion 81 and the upper urethane foam of another main insulation board adjacent to the main insulation board. A secondary barrier (20) is inserted into the urethane foam (11) and the urethane foam (11) of the upper insulation board (20), the main insulation board (10), and the contact table (32) protrudes upward at the end. 31) this upper part The sealed metal insulation box 30 formed integrally with the upper portion, the upper plywood 50 installed to be positioned above the secondary barrier 31, and the primary barrier 60 connected to the upper plywood 50. It is configured to include, the first and second barriers are sealed by connecting the contact of the secondary barrier of the main insulation panel and the contact of the secondary barrier of the connection barrier plate by welding at the same time.

상기 메인단열판(10)은 볼트(70) 등의 고정수단이 삽입 설치되는 하부 우레탄폼(12)과, 상기 하부 우레탄폼(12) 상부에 일체형으로 형성되고 내부에 밀폐형 금속단열상자(30)가 삽입 설치되는 상부 우레탄폼(11)으로 이루어져 있으며, 상기 하부 우레탄폼(12)은 상부 우레탄폼(11)보다 넓은 폭을 구비하도록 되어 있어, 볼트(70)에 의해 메인단열판(10)의 선체(80) 및 선체단열판 연결부(81)와의 연결 설치를 용이하게 할 수 있도록 되어 있다. 즉, 메인단열판(10)의 하부면에는 하부합판(40)이 설치되고, 볼트(70)가 삽입되는 하부 우레탄폼(12)은 상부 우레탄폼(11)에서 돌출되도록 상부 우레탄폼(11)과 층을 이루고 형성되어 있다. The main heat insulating plate 10 is formed of a lower urethane foam 12 into which a fixing means such as a bolt 70 is installed, and an integrally formed upper portion of the lower urethane foam 12, and a sealed metal insulation box 30 is formed therein. The upper urethane foam 11 is inserted and installed, the lower urethane foam 12 is to have a wider width than the upper urethane foam 11, the hull of the main insulation plate 10 by the bolt 70 ( 80) and the hull insulation plate connecting portion 81 to facilitate the installation. That is, the lower plywood 40 is installed on the lower surface of the main heat insulating plate 10, and the lower urethane foam 12 into which the bolt 70 is inserted is projected from the upper urethane foam 11 and the upper urethane foam 11. It is formed in layers.

상기 연결단열판(20)은 메인단열판(10)과 같이, 폴리우레탄폼 내부에 밀폐형 금속단열상자(30)가 삽입설치되는 구성으로 이루어져 있다. The connection insulation panel 20 is made of a configuration in which the sealed metal insulation box 30 is inserted into the polyurethane foam, like the main insulation panel 10.

상기 밀폐형 금속단열상자(30)는 폴리우레탄 폼으로 이루어진 메인/연결단열판(10,20)내에 삽입되어 일체화되는 것으로, 내부에 고성능 단열재 또는 나노기공형 단열재가 내장되거나, 내부가 진공상태를 구비하며, 밀폐형 금속단열상자(30)를 이루는 패널은 약 두께 1㎜ 이하를 구비한다. The hermetically sealed metal insulation box 30 is inserted into and integrated in the main / connection insulation plates 10 and 20 made of polyurethane foam, and a high-performance insulation material or a nano-porous insulation material is embedded therein, or the inside has a vacuum state. The panel constituting the sealed metal insulation box 30 has a thickness of about 1 mm or less.

상기 2차방벽(31)은 밀폐형 금속단열상자(30)의 상부면에 해당되는 것으로, 폴리우레탄폼으로 이루어진 메인/연결단열판(10,20)의 상부면에 위치하도록 밀폐형 금속단열상자(30)의 모서리 부분이 연장되어 형성되어 있다. The secondary barrier 31 corresponds to the upper surface of the sealed metal insulation box 30, and the sealed metal insulation box 30 is located on the upper surface of the main / connection insulation panels 10 and 20 made of polyurethane foam. The edge portion of is formed to extend.

즉, 상기 2차방벽(31)은 밀폐형 금속단열상자(30)가 삽입된 메인/연결단열판(10,20)의 상부면과 동일한 폭을 구비하도록 밀폐형 금속단열상자(30)의 모서리로부터 돌출연장되어 형성되어 있다. That is, the secondary barrier 31 extends from the edge of the sealed metal insulation box 30 so as to have the same width as the upper surfaces of the main / connection insulation panels 10 and 20 into which the sealed metal insulation box 30 is inserted. It is formed.

상기와 같이 구성된 밀폐형 금속단열상자(30)는 폴리우레탄 폼으로 이루어진 메인/연결단열판(10,20)내에 삽입되어 설치될 경우, 밀폐형 금속단열상자(30)는 폴리우레탄 폼내에 위치하게 되고, 2차방벽(31)은 메인/연결단열판(10,20)의 상부면에 위치하게 된다. When the sealed metal insulation box 30 configured as described above is inserted into and installed in the main / connection insulation plates 10 and 20 made of polyurethane foam, the sealed metal insulation box 30 is positioned in the polyurethane foam. The barrier wall 31 is located on the top surface of the main / connection insulation panels 10 and 20.

즉, 상기 밀폐형 금속단열상자(30)가 삽입되어 일체화된 메인/연결단열판(10,20)은 상부에 밀폐형 금속단열상자의 2차방벽(31)이 위치하게 되고, 2차방벽(31) 하부에 폴리우레탄 폼 및 밀폐형 금속단열상자(30)의 나머지 부분이 위치하게 되며, 상기 밀폐형 금속단열상자(30)는 폴리우레탄 폼 중앙에 위치하게 된다. That is, the secondary barrier 31 of the sealed metal insulation box is located at the upper part of the main / connection insulation panels 10 and 20 integrated with the sealed metal insulation box 30 inserted therein, and the lower portion of the secondary barrier 31 is located below. The remaining portion of the polyurethane foam and the sealed metal insulation box 30 is located, the sealed metal insulation box 30 is located in the center of the polyurethane foam.

또한, 상기 2차방벽(31)은 끝단에 상부방향으로 돌출되는 접촉대(32)가 형성되어 있으며, 상기 돌출형성된 접촉대(32)내에 위치하도록 2차방벽(31) 상부면에 상부합판(50)이 더 설치된다. In addition, the secondary barrier 31 is formed with a contact point 32 protruding upwards at an end thereof, and an upper plywood on the upper surface of the secondary barrier 31 so as to be located in the protruded contact point 32. 50) are installed further.

상기 1차방벽(60)은 2차방벽(31) 상부면에 설치된 상부합판(50)에 1차방벽 연결부(61)에 의해 연결된다. The primary barrier 60 is connected to the upper plywood 50 installed on the upper surface of the secondary barrier 31 by the primary barrier connecting portion 61.

상기와 같이 본 발명은 내부에 밀폐형 금속단열상자(30)를 구비하는 메인/연결단열판(10,20)으로 이루어져 있으며, 메인/연결단열판(10,20)의 상부면에 설치된 2차방벽(31)이 서로 용접되어 밀봉되도록 되어 있다. As described above, the present invention consists of main / connection insulation panels 10 and 20 having a sealed metal insulation box 30 therein, and a secondary barrier 31 installed on an upper surface of the main / connection insulation panels 10 and 20. Are welded to each other and sealed.

이와 같이 구성된 본 발명의 메인/연결단열판에 의해 단열시스템을 설치하고자 할 경우, 먼저 메인단열판을 설치하고, 메인단열판의 하부 우레탄 폼을 통해 볼트로 메인단열판을 선체 및 선체단열판 연결부에 연결시키며, 상기 고정된 메인단열판의 상부 우레탄 폼 사이에 위치하도록 연결단열판을 메인단열판의 하부 우레탄 폼 상부면에 설치한다. 이때, 메인단열판의 상부면에 위치하는 2차방벽의 접촉대와 연결단열판의 상부면에 위치하는 2차방벽의 접촉대는 서로 접촉하게 되며, 상기 접촉부위를 용접하여 2차방벽을 밀봉처리한다. When the heat insulation system is to be installed by the main / connection heat insulating plate of the present invention configured as described above, first, the main heat insulating plate is installed, and the main heat insulating plate is connected to the hull and the hull heat insulating plate connecting part with a bolt through the lower urethane foam of the main heat insulating plate, The connecting insulation plate is installed on the upper surface of the lower urethane foam of the main insulation board so as to be located between the upper urethane foam of the fixed main insulation board. At this time, the contact zone of the secondary barrier located on the upper surface of the main insulation board and the contact zone of the secondary barrier located on the upper surface of the connection insulation board are in contact with each other, and the secondary barrier is welded to seal the secondary barrier.

상기와 같이 본 발명은 내부에 밀폐형 단열상자를 구비하는 메인/연결단열판의 단층에 의해 단열시스템이 이루어지도록 되어 있다. As described above, the present invention is made to the heat insulation system by a single layer of the main / connection heat insulating plate having a sealed heat insulation box therein.

본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위내에 있게 된다.The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

이와 같이 본 발명은 폴리우레탄 폼으로 이루어진 단열판내에 밀폐형 금속단열상자가 삽입설치되고, 2차방벽이 일체화된 단열판을 설치하도록 되어 있어, 단층의 단열시스템을 구현할 수 있으며, 설치공정의 단순화를 통해 작업시간을 단축할 수 있다. Thus, the present invention is to install a sealed metal insulation box is inserted into the insulation plate made of polyurethane foam, and to install a heat insulation plate integrated with a secondary barrier, it is possible to implement a single-layer insulation system, work by simplifying the installation process It can save time.

또한, 본 발명은 밀폐형 금속단열상자의 모서리를 연장하여 2차방벽으로 활용하고, 이러한 2차방벽을 용접에 의해 밀봉하도록 되어 있어, 접합부의 기밀성 즉, 극저온 액화가스의 누출방지성을 획기적으로 개선할 수 있으며, 작업성을 향상시킬 수 있는 등 많은 효과가 있다.In addition, the present invention extends the corners of the sealed metal insulation box to utilize as a secondary barrier, and the secondary barrier is sealed by welding, thereby significantly improving the airtightness of the joint, that is, preventing leakage of cryogenic liquefied gas. There are many effects, such as to improve the workability.

Claims (3)

액화천연가스 저장용기용 단열시스템에 있어서,In the insulation system for LNG storage containers, 층을 이루고 일체형으로 형성된 상부 우레탄 폼과 하부 우레탄 폼을 구비하고 하부면에 하부합판이 설치되며 볼트에 의해 선체에 연결되는 메인단열판과,A main insulation board having a layered and integrally formed upper urethane foam and lower urethane foam and having a lower plywood installed on the lower surface thereof and connected to the hull by bolts; 상기 메인단열판의 상부 우레탄 폼과 이에 인접하는 또다른 메인단열판의 사부 우레탄 폼 사이에 위치하도록 메인단열판의 하부 우레탄 폼 상부에 설치되는 연결단열판과,A connection heat insulating plate installed on the upper urethane foam of the main heat insulating plate so as to be located between the upper urethane foam of the main heat insulating plate and the quadruple urethane foam of another main heat insulating plate adjacent thereto; 상기 메인단열판의 상부 우레탄 폼 및 연결단열판의 우레탐 폼내에 삽입 설치되고, 끝단에 접촉대가 상부방향으로 돌출형성된 2차방벽이 상부면에 일체형으로 형성된 밀폐형 금속단열상자와,An enclosed metal insulation box which is installed in the upper urethane foam of the main insulation board and the urethane foam of the connection insulation board, and a secondary barrier having a contact bar protruding upward in the end is formed integrally on the upper surface; 상기 2차방벽 상부에 위치하도록 설치되는 상부합판과,An upper plywood installed to be positioned above the secondary barrier; 상기 상부합판에 연결되어 설치되는 1차방벽을 포함하는 것을 특징으로 하는 고성능 금속재 단열상자 삽입형 액화천연가스 저장용기용 단열시스템.Insulation system for a high-performance metal insulation box insert-type liquefied natural gas storage container comprising a primary barrier is connected to the upper plywood. 제 1 항에 있어서;The method of claim 1; 상기 메인단열판 2차방벽의 접촉대와 연결단열판 2차방벽의 접촉대는 용접에 의해 연결되어 2차방벽이 밀봉되도록 한 것을 특징으로 하는 고성능 금속재 단열상자 삽입형 액화천연가스 저장용기용 단열시스템.Insulating system of the high-performance metal insulation box insert-type liquefied natural gas storage container, characterized in that the contact of the secondary barrier of the main insulation panel and the contact of the secondary barrier of the connecting insulation panel is connected by welding to seal the secondary barrier. 제 1 항에 있어서;The method of claim 1; 상기 밀폐형 금속단열상자는 두께 1㎜ 이하의 패널로 이루어진 것을 특징으로 하는 고성능 금속재 단열상자 삽입형 액화천연가스 저장용기용 단열시스템.The hermetically sealed metal insulation box is a thermal insulation system for a high-performance metal insulation box insert-type liquefied natural gas storage container, characterized in that the panel consisting of less than 1mm thick.
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KR101345809B1 (en) 2011-06-16 2013-12-27 삼성중공업 주식회사 Insulation structure of lng cargo tank and method for constructing the same
CN107388019A (en) * 2016-05-17 2017-11-24 江南造船(集团)有限责任公司 A kind of insulation system of independent Type B flow container
KR102005762B1 (en) * 2019-02-13 2019-08-01 주식회사 제이텍 Insulation structure of refrigeration room wall in the ship using vacuum thermal insulation panel assembly for manufacturing eco-friendly refrigeration room wall of ship

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JPH0674394A (en) * 1992-08-28 1994-03-15 Akushisu:Kk Coldness keeping structure of metallic tank for cryogenic storage
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101345809B1 (en) 2011-06-16 2013-12-27 삼성중공업 주식회사 Insulation structure of lng cargo tank and method for constructing the same
CN107388019A (en) * 2016-05-17 2017-11-24 江南造船(集团)有限责任公司 A kind of insulation system of independent Type B flow container
KR102005762B1 (en) * 2019-02-13 2019-08-01 주식회사 제이텍 Insulation structure of refrigeration room wall in the ship using vacuum thermal insulation panel assembly for manufacturing eco-friendly refrigeration room wall of ship

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