KR20200039948A - Method for installating insulation box of lng storage tank - Google Patents

Method for installating insulation box of lng storage tank Download PDF

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Publication number
KR20200039948A
KR20200039948A KR1020180119568A KR20180119568A KR20200039948A KR 20200039948 A KR20200039948 A KR 20200039948A KR 1020180119568 A KR1020180119568 A KR 1020180119568A KR 20180119568 A KR20180119568 A KR 20180119568A KR 20200039948 A KR20200039948 A KR 20200039948A
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KR
South Korea
Prior art keywords
insulation box
standard
storage tank
thermal insulation
box
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KR1020180119568A
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Korean (ko)
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백승준
임형근
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대우조선해양 주식회사
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Priority to KR1020180119568A priority Critical patent/KR20200039948A/en
Publication of KR20200039948A publication Critical patent/KR20200039948A/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 
    • B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
    • 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
    • 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
    • B63B2701/10—
    • 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
    • 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

Abstract

Disclosed is a method for installing an insulation box of a liquefied natural gas storage tank. According to the present invention, a method for installing an insulation box of a liquefied natural gas storage tank comprises: a first step of prefabricating a plurality of standard insulation boxes disposed within a storage tank and by theoretical dimension, non-standard insulation boxes installed in a space between the standard insulation boxes, disposed at both tip ends among the plurality of standard insulation boxes, and an inner wall of a hull; a second step of measuring a real distance where the standard insulation boxes and the non-standard insulation boxes are to be installed; a third step of adjusting and marking positions where the standard insulation boxes and the non-standard insulation boxes are to be installed while considering installation tolerance between the standard insulation box and non-standard insulation box members; and a fourth step of installing the standard insulation boxes and the non-standard insulation boxes, fabricated in the first step, at the positions, marked in the third step. The present invention can shorten a construction period of the liquefied natural gas storage tank.

Description

액화천연가스 저장탱크의 단열박스 설치방법 {METHOD FOR INSTALLATING INSULATION BOX OF LNG STORAGE TANK}How to install an insulated box for a liquefied natural gas storage tank {METHOD FOR INSTALLATING INSULATION BOX OF LNG STORAGE TANK}

본 발명은 액화천연가스 저장탱크의 단열박스 설치방법에 관한 것으로서, 더욱 상세하게는 표준 타입의 단열박스와 비표준 타입의 단열박스를 사전에 동시 제작하고, 선체의 안벽에 동시 설치가 가능한 액화천연가스 저장탱크의 단열박스 설치방법에 관한 것이다.The present invention relates to a method of installing an insulated box of a liquefied natural gas storage tank, and more specifically, to simultaneously produce a standard type of insulated box and a non-standard type of insulated box, and to simultaneously install the liquefied natural gas on the inner wall of the hull. It relates to a method of installing an insulating box of a storage tank.

액화천연가스(LNG; liquefied natural gas)는 천연가스를 극저온(대략 -163℃)으로 냉각하여 얻어지는 것으로 가스 상태의 천연가스일 때보다 그 부피가 대략 1/600로 줄어들므로 해상을 통한 원거리 운반에 매우 적합하다.Liquefied natural gas (LNG) is obtained by cooling natural gas to a very low temperature (approximately -163 ° C), and its volume is reduced to approximately 1/600 compared to natural gas in a gas state, so it can be Very suitable.

액화천연가스 운반선에는 극저온에 견딜 수 있는 저장탱크('화물창'이라고도 함)가 설치되며, 이는 독립탱크형(Independent Type)과 멤브레인형(Memnrane Type)으로 분류할 수 있다. 독립탱크형 저장탱크는 다량의 비철금속을 주재료로 사용하여 제조비용이 비싸기 때문에, 현재 멤브레인형 저장탱크가 일반적으로 많이 사용되고 있다.Liquefied natural gas carriers are equipped with storage tanks (also referred to as 'cargo holds') that can withstand cryogenic temperatures, which can be divided into independent tank types and membrane types. Independent tank-type storage tanks use a large amount of non-ferrous metal as a main material, and thus, manufacturing costs are high, so membrane storage tanks are generally used.

멤브레인형 저장탱크는 선체를 극저온의 액화천연가스와 단열 및 차단시키기 위한 구조로서, 선체에 저온 인성이 강한 인바강(invar steel)으로 배리어(barrier)를 형성하고, 배리어와 선체 사이에 절연층을 매개하는 방식으로 이루어진다.The membrane-type storage tank is a structure to insulate and block the hull from cryogenic liquefied natural gas, and forms a barrier with hull-resistant invar steel in the hull, and an insulating layer between the barrier and the hull. It is done in a mediating way.

더욱 상세히 설명하면, 저장탱크 내부로부터 가장 안쪽, 즉 극저온의 액화천연가스가 직접 닿는 부분에 인바강으로 제1 배리어를 형성하고, 그 바깥쪽에 제1 절연층을 둔다. 또 그 바깥쪽으로 제2 배리어를 형성하고, 그 바깥쪽에 제2 절연층을 둠으로써 제2 절연층은 선체의 외벽과 접촉된다. In more detail, the first barrier is formed of Invar steel at the innermost portion of the storage tank, that is, the portion where the cryogenic liquefied natural gas directly contacts, and a first insulating layer is placed outside. Further, by forming a second barrier outside and placing a second insulating layer outside, the second insulating layer is in contact with the outer wall of the hull.

배리어로는 복수개의 인바 스트립으로 인바 튜브(invar tube)를 조립한 후, 이를 용접에 의해 선체에 부착하고, 절연층으로는 합판재로 된 박스 내부를 펄라이트(perlite) 등의 절연재로 충진한 단열박스(insulation box)를 단위재로 조립하여 형성한다.After the invar tube is assembled with a plurality of invar strips as a barrier, it is attached to the hull by welding, and as an insulating layer, the inside of the box made of plywood is filled with insulating material such as perlite. The box (insulation box) is formed by assembling the unit material.

도 1은 종래 기술에 따른 단열박스 설치공정을 나타낸 흐름도이고, 도 2는 종래 기술에 따른 액화천연가스 저장탱크의 단열박스 설치과정을 순차적으로 나타낸 도면이다.1 is a flow chart showing a process of installing an insulating box according to the prior art, and FIG. 2 is a view sequentially showing a process of installing an insulating box of a liquefied natural gas storage tank according to the prior art.

도 1 및 도 2를 참조하면, 저장탱크에 설치되는 단열박스는 표준 구역에 설치되는 표준 타입의 단열박스(10, 이하 '표준 단열박스'라 함)와 표준 단열박스(10)와 선체의 안벽 사이의 공간에 설치되는 비표준 타입의 단열박스(20, 이하 '비표준 단열박스'라 함)로 구분될 수 있다. 여기서 표준 구역이란 아래에서 설명하는 보더 구역을 제외한 구역을 의미한다.1 and 2, the insulation box installed in the storage tank is a standard type of insulation box (10, hereinafter referred to as a 'standard insulation box') installed in a standard zone, a standard insulation box 10 and a hull of the hull. It can be divided into a non-standard type of insulation box (20, hereinafter referred to as 'non-standard insulation box') installed in the space between. Here, the standard zone means a zone excluding the border zone described below.

표준 단열박스(10)는 정해진 표준 사이즈를 만족하도록 단위체로 제작되어 다수 개가 선체의 안벽에 배열된다.The standard thermal insulation box 10 is made of a unit body so as to satisfy a predetermined standard size, and a plurality of pieces are arranged on the inner wall of the hull.

비표준 단열박스(20)는 통상적으로 8각 형상으로 마련되는 저장탱크의 내벽이 만나는 보더(border) 구역에 설치되는데, 비표준 단열박스(20)가 설치되는 공간(S)은 표준 단열박스(10)가 설치되고 남는 공간이라 할 수 있다.The non-standard insulating box 20 is installed in a border area where the inner wall of the storage tank, which is usually provided in an octagonal shape, meets, and the space S in which the non-standard insulating box 20 is installed is a standard insulating box 10 It can be said to be the space left after installation.

따라서 비표준 단열박스(20)가 설치되는 공간(S)은 저장탱크의 크기 또는 표준 단열박스(10) 사이의 설치 공차 등에 따라 달라질 수 있으므로, 경우마다 적합한 임의의 사이즈로 제작되어야 한다.Therefore, the space S in which the non-standard thermal insulation box 20 is installed may vary depending on the size of the storage tank or the installation tolerance between the standard thermal insulation boxes 10, and thus should be manufactured in an arbitrary size suitable for each case.

도 1 및 도 2를 참조하면, 종래에는 저장탱크에 단열박스(10, 20)를 설치함에 있어서, 먼저 표준 단열박스(10)의 제작 및 설치가 완료된 후, 비표준 단열박스(20)의 제작 및 설치가 이루어지는 것을 알 수 있다.Referring to Figures 1 and 2, conventionally in the installation of the insulating box (10, 20) in the storage tank, first the production and installation of the standard insulation box 10 is completed, and then the production of the non-standard insulation box 20 and You can see that the installation takes place.

구체적으로는 먼저 표준 단열박스(10)를 제작하고, 저장탱크의 중앙부(C)에서부터 저장탱크의 보더 구역을 향하여 표준 단열박스(10)를 순차적으로 설치한다. 도 2의 (a)에 표준 단열박스(10)의 설치가 완료된 상태가 도시되어 있다. Specifically, first, the standard insulation box 10 is manufactured, and the standard insulation box 10 is sequentially installed from the central portion C of the storage tank toward the border area of the storage tank. 2 (a) shows a state in which the installation of the standard thermal insulation box 10 is completed.

표준 단열박스(10)의 설치가 완료되면, 도 2의 (b)에 도시된 바와 같이 제일 끝단에 설치되는 표준 단열박스(10)와 선체의 안벽 사이의 공간(S)의 거리를 계측한다.When the installation of the standard thermal insulation box 10 is completed, the distance of the space S between the standard thermal insulation box 10 installed at the far end and the inner wall of the hull is measured as shown in FIG.

이후 계측된 값에 따라 비표준 단열박스(20)를 제작하고, 표준 단열박스(10)의 양 끝단의 남는 공간에 비표준 단열박스(20)를 설치함으로써, 저장탱크의 단열박스(10, 20) 설치가 최종적으로 완료된다. 도 2의 (c)에 저장탱크에 단열박스(10, 20) 설치가 최종적으로 완료된 상태가 도시되어 있다.Subsequently, the non-standard insulating box 20 is manufactured according to the measured values, and the non-standard insulating box 20 is installed in the remaining spaces at both ends of the standard insulating box 10 to install the insulating boxes 10 and 20 of the storage tank. Is finally completed. In (c) of FIG. 2, a state in which the insulation boxes 10 and 20 are finally installed in the storage tank is illustrated.

상기와 같은 프로세스에 의하면, 표준 단열박스(10)의 제작 및 설치가 모두 완료된 후, 비표준 단열박스(20)의 제작 및 설치가 이루어짐에 따라, 단열박스(10, 20)의 설치공정이 비효율적이고, 액화천연가스 저장탱크의 건조 기간이 길어지는 단점이 있다.According to the above process, after the production and installation of the standard insulation box 10 are all completed, as the production and installation of the non-standard insulation box 20 are performed, the installation process of the insulation boxes 10 and 20 is inefficient and , There is a disadvantage that the drying period of the liquefied natural gas storage tank becomes longer.

본 발명이 이루고자 하는 기술적 과제는, 표준 단열박스와 비표준 단열박스의 제작 및 설치가 동시에 이루어질 수 있도록 하여, 액화천연가스 저장탱크의 건조 기간을 단축시키고자 하는 것이다.The technical problem to be achieved by the present invention is to shorten the drying period of the liquefied natural gas storage tank by allowing the production and installation of a standard thermal insulation box and a non-standard thermal insulation box at the same time.

상기의 목적을 달성하기 위하여, 본 발명은 저장탱크 내에 설치되는 복수의 표준 단열박스와, 상기 복수의 표준 단열박스 중에서 양 끝단에 설치되는 표준 단열박스와 선체의 안벽 사이의 공간에 설치되는 비표준 단열박스를 이론 치수로 사전 제작하는 제1 단계; 상기 표준 단열박스 및 상기 비표준 단열박스가 설치될 실제 거리를 계측하는 제2 단계; 상기 표준 단열박스 및 상기 비표준 단열박스 부재들 사이의 설치 공차를 고려하여, 상기 표준 단열박스와 상기 비표준 단열박스가 설치될 위치를 조절하고 마킹하는 제3 단계; 및 상기 제1 단계에서 제작된 상기 표준 단열박스 및 상기 비표준 단열박스를 상기 제3 단계에서 마킹된 위치에 설치하는 제4 단계;를 포함하는, 액화천연가스 저장탱크의 단열박스 설치방법을 제공한다.In order to achieve the above object, the present invention is a plurality of standard insulation boxes installed in a storage tank, and among the plurality of standard insulation boxes, a standard insulation box installed at both ends and a non-standard insulation installed in a space between the inner walls of the hull. A first step of pre-fabricating the box with theoretical dimensions; A second step of measuring an actual distance at which the standard thermal insulation box and the non-standard thermal insulation box will be installed; A third step of adjusting and marking a position in which the standard thermal insulation box and the non-standard thermal insulation box are to be installed, in consideration of installation tolerances between the standard thermal insulation box and the non-standard thermal insulation box members; And a fourth step of installing the standard thermal insulation box and the non-standard thermal insulation box produced in the first step at a position marked in the third step; including a method for installing an insulation box of a liquefied natural gas storage tank. .

상기 제2 단계는 상기 저장탱크에서 서로 대향되는 양 측벽 사이의 거리를 측정함으로써 이루어질 수 있다.The second step may be achieved by measuring the distance between both side walls facing each other in the storage tank.

상기 제3 단계에서 상기 표준 단열박스 및 상기 비표준 단열박스 부재들 사이의 설치 공차는, Primary setting plate를 고려하여 산출될 수 있다.In the third step, the installation tolerance between the standard thermal insulation box and the non-standard thermal insulation box members may be calculated in consideration of the primary setting plate.

상기 제4 단계에서 상기 표준 단열박스의 설치와 상기 비표준 단열박스의 설치 작업은 동시에 이루어질 수 있다.In the fourth step, the installation of the standard thermal insulation box and the installation of the non-standard thermal insulation box may be performed simultaneously.

본 발명은 표준 단열박스와 비표준 단열박스의 제작 및 설치가 동시에 이루어짐에 따라, 설치공정이 간소화되어 작업성이 크게 향상되고, 액화천연가스 저장탱크의 건조 기간이 현저히 단축되는 효과가 있다.According to the present invention, as the production and installation of the standard insulated box and the non-standard insulated box are simultaneously performed, the installation process is simplified, and the workability is greatly improved, and the drying period of the liquefied natural gas storage tank is significantly shortened.

도 1은 종래 기술에 따른 단열박스 설치공정을 나타낸 흐름도이다.
도 2는 종래 기술에 따른 액화천연가스 저장탱크의 단열박스 설치과정을 순차적으로 나타낸 도면이다.
도 3은 본 발명에 따른 단열박스 설치공정을 나타낸 흐름도이다.
도 4는 본 발명에 따른 액화천연가스 저장탱크의 단열박스 설치 과정을 순차적으로 나타낸 도면이다.1 is a flow chart showing a process for installing an insulating box according to the prior art.
2 is a view sequentially showing the installation process of the insulating box of the liquefied natural gas storage tank according to the prior art.
3 is a flow chart showing the process of installing an insulating box according to the present invention.
4 is a view sequentially showing the installation process of the insulating box of the liquefied natural gas storage tank according to the present invention.

본 발명과 본 발명의 동작상의 이점 및 본 발명의 실시에 의하여 달성되는 목적을 충분히 이해하기 위해서는 본 발명의 바람직한 실시예를 예시하는 첨부 도면 및 첨부 도면에 기재된 내용을 참조하여야만 한다.In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the contents described in the accompanying drawings, which illustrate preferred embodiments of the present invention.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명함으로써, 본 발명을 상세히 설명한다. 각 도면에 제시된 동일한 참조부호는 동일한 부재를 나타낸다.Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the accompanying drawings. The same reference numerals in each drawing denote the same members.

도 3은 본 발명에 따른 단열박스 설치공정을 나타낸 흐름도이고, 도 4는 본 발명에 따른 액화천연가스 저장탱크의 단열박스 설치과정을 순차적으로 나타낸 도면이다.3 is a flow chart showing the installation process of the insulation box according to the present invention, and FIG. 4 is a view sequentially showing the installation process of the insulation box of the liquefied natural gas storage tank according to the present invention.

도 3 및 도 4를 참조하면, 본 발명에 따른 액화천연가스 저장탱크의 단열박스 설치방법은, 표준 단열박스(10)와 비표준 단열박스(20)를 이론 치수로 사전 제작하는 제1 단계; 표준 단열박스(10) 및 비표준 단열박스(20)의 설치를 위한 실제 거리를 계측하는 제2 단계; 부재간 설치 공차를 고려하여 표준 단열박스(10) 및 비표준 단열박스(20)가 설치될 위치를 조절하고 마킹(marking)하는 제3 단계; 및 이론 치수로 제작된 표준 단열박스(10) 및 비표준 단열박스(20)를 마킹된 설치 위치에 설치하는 제4 단계;를 포함한다. 3 and 4, a method of installing an insulating box of a liquefied natural gas storage tank according to the present invention includes: a first step of pre-producing a standard insulating box 10 and a non-standard insulating box 20 in theoretical dimensions; A second step of measuring an actual distance for the installation of the standard thermal insulation box 10 and the non-standard thermal insulation box 20; A third step of adjusting and marking the positions in which the standard insulation box 10 and the non-standard insulation box 20 are to be installed in consideration of installation tolerances between members; And a fourth step of installing the standard thermal insulation box 10 and the non-standard thermal insulation box 20 made of theoretical dimensions at the marked installation position.

제1 단계에서는 저장탱크 내에 배치되는 표준 단열박스(10)와 비표준 단열박스(20)를 이론 치수로 사전 제작한다.In the first step, the standard insulating box 10 and the non-standard insulating box 20 disposed in the storage tank are pre-fabricated with theoretical dimensions.

표준 단열박스(10)는 저장탱크의 표준 구역에 설치되는 것으로서, 정해진 표준 사이즈를 만족하도록 단위체로 제작되어 다수 개가 선체의 안벽에 배열될 수 있다.The standard thermal insulation box 10 is installed in a standard area of a storage tank, and is manufactured as a unit so as to satisfy a predetermined standard size, and a plurality of pieces may be arranged on the inner wall of the hull.

비표준 단열박스(20)는 저장탱크의 보더 구역에 설치되는 것으로서, 다수로 마련되는 표준 단열박스(10) 중 제일 끝단에 설치되는 단열박스와 선체의 안벽 사이의 공간(S)에 설치되며, 상기 공간(S)에 적합하도록 임의의 사이즈로 제작될 수 있다.The non-standard thermal insulation box 20 is installed in the border area of the storage tank, and is installed in a space S between the thermal insulation box installed at the far end of the standard thermal insulation box 10 provided in a large number and the inner wall of the hull. It can be made in any size to suit the space (S).

제2 단계에서는 표준 단열박스(10) 및 비표준 단열박스(20)의 설치를 위한 실제 거리를 계측한다. 제2 단계는 저장탱크에서 서로 대향되는 양 측벽 사이의 거리(T)를 계측함으로써 이루어질 수 있다. 이때 계측의 정확도를 높이기 위해 레이저 장비를 이용하여 거리를 측정할 수 있다.In the second step, the actual distance for the installation of the standard thermal insulation box 10 and the non-standard thermal insulation box 20 is measured. The second step can be achieved by measuring the distance T between both side walls facing each other in the storage tank. At this time, the distance can be measured using a laser device to increase the accuracy of the measurement.

한편, 제2 단계는 제1 단계에 선행할 수 있다. 즉, 표준 단열박스(10) 및 비표준 단열박스(20)의 설치를 위한 실제 거리가 먼저 계측되고, 부재들간의 설치 공차를 고려하여 표준 단열박스(10)와 비표준 단열박스(20)를 적절한 규격으로 제작할 수도 있다.Meanwhile, the second step may precede the first step. That is, the actual distances for the installation of the standard thermal insulation box 10 and the non-standard thermal insulation box 20 are measured first, and the standard insulation box 10 and the non-standard thermal insulation box 20 are appropriately sized in consideration of installation tolerances between members. It can also be produced.

제3 단계에서는 단열박스(10, 20) 부재들간의 설치 공차를 고려하여, 표준 단열박스(10) 및 비표준 단열박스(20)가 설치될 위치를 조절하고 마킹한다. 단열박스(10, 20) 부재들간의 설치 공차는 단열박스를 선체에 고정시키기 위한 고정장치(securing device)의 설치를 고려하여 산출될 수 있다.In the third step, in consideration of installation tolerances between the members of the insulating boxes 10 and 20, the positions in which the standard insulating box 10 and the non-standard insulating box 20 are to be installed are adjusted and marked. The installation tolerance between the members of the insulating boxes 10 and 20 may be calculated in consideration of the installation of a securing device for fixing the insulating boxes to the hull.

마지막으로 제 4단계에서는 이론 치수로 제작된 표준 단열박스(10) 및 비표준 단열박스(20)를 마킹된 위치에 설치한다.Finally, in the fourth step, the standard insulation box 10 and the non-standard insulation box 20 made of theoretical dimensions are installed in the marked position.

이때 제3 단계에서 표준 단열박스(10) 및 비표준 단열박스(20)의 설치 위치가 미리 정해지므로, 표준 단열박스(10) 및 비표준 단열박스(20)의 설치가 동시에 이루어질 수 있다.At this time, since the installation positions of the standard thermal insulation box 10 and the non-standard thermal insulation box 20 are predetermined in the third step, the installation of the standard thermal insulation box 10 and the non-standard thermal insulation box 20 can be performed simultaneously.

상기와 같이 단열박스의 설치 프로세스가 개선된 본 발명에 따르면, 표준 단열박스(10) 및 비표준 단열박스(20)를 사전에 조기 제작하는 것이 가능하며, 표준 단열박스(10) 및 비표준 단열박스(20)의 제작 및 설치가 동시에 이루어짐에 따라 액화천연가스 저장탱크의 건조 기간이 현저히 단축되는 효과가 있다.According to the present invention in which the installation process of the insulation box is improved as described above, it is possible to preliminarily manufacture the standard insulation box 10 and the non-standard insulation box 20, and the standard insulation box 10 and the non-standard insulation box ( 20) As the production and installation are performed simultaneously, the drying period of the liquefied natural gas storage tank is significantly shortened.

이와 같은 본 발명은 기재된 실시예에 한정되는 것이 아니고, 본 발명의 사상 및 범위를 벗어나지 않고 다양하게 수정 및 변형할 수 있음은 이 기술의 분야에서 통상의 지식을 가진 자에게 자명하다. 따라서 그러한 수정 예 또는 변형 예들은 본 발명의 특허청구범위에 속한다 하여야 할 것이다.The present invention is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the claims of the present invention.

10 : 표준 단열박스 20 : 비표준 단열박스10: Standard insulation box 20: non-standard insulation box

Claims (4)

저장탱크 내에 설치되는 복수의 표준 단열박스와, 상기 복수의 표준 단열박스 중에서 양 끝단에 설치되는 표준 단열박스와 선체의 안벽 사이의 공간에 설치되는 비표준 단열박스를 이론 치수로 사전 제작하는 제1 단계;
상기 표준 단열박스 및 상기 비표준 단열박스가 설치될 실제 거리를 계측하는 제2 단계;
상기 표준 단열박스 및 상기 비표준 단열박스 부재들 사이의 설치 공차를 고려하여, 상기 표준 단열박스와 상기 비표준 단열박스가 설치될 위치를 조절하고 마킹하는 제3 단계; 및
상기 제1 단계에서 제작된 상기 표준 단열박스 및 상기 비표준 단열박스를 상기 제3 단계에서 마킹된 위치에 설치하는 제4 단계;를 포함하는,
액화천연가스 저장탱크의 단열박스 설치방법.
The first step of pre-production of a plurality of standard insulation boxes installed in a storage tank and a non-standard insulation box installed in a space between the inner wall of the hull and the standard insulation box installed at both ends of the plurality of standard insulation boxes ;
A second step of measuring an actual distance at which the standard thermal insulation box and the non-standard thermal insulation box will be installed;
A third step of adjusting and marking a position in which the standard thermal insulation box and the non-standard thermal insulation box will be installed in consideration of installation tolerances between the standard thermal insulation box and the non-standard thermal insulation box members; And
Included in the fourth step of installing the standard thermal insulation box and the non-standard thermal insulation box produced in the first step in a position marked in the third step;
How to install the insulation box of a liquefied natural gas storage tank.
청구항 1에 있어서,
상기 제2 단계는 상기 저장탱크에서 서로 대향되는 양 측벽 사이의 거리를 측정함으로써 이루어지는 것을 특징으로 하는,
액화천연가스 저장탱크의 단열박스 설치방법.
The method according to claim 1,
The second step is characterized in that it is made by measuring the distance between both side walls opposite to each other in the storage tank,
How to install the insulation box of a liquefied natural gas storage tank.
청구항 2에 있어서,
상기 제3 단계에서 상기 표준 단열박스 및 상기 비표준 단열박스 부재들 사이의 설치 공차는, Primary setting plate를 고려하여 산출되는 것을 특징으로 하는,
액화천연가스 저장탱크의 단열박스 설치방법.
The method according to claim 2,
In the third step, the installation tolerance between the standard thermal insulation box and the non-standard thermal insulation box members is calculated by considering a primary setting plate,
How to install the insulation box of a liquefied natural gas storage tank.
청구항 2에 있어서,
상기 제4 단계에서 상기 표준 단열박스의 설치와 상기 비표준 단열박스의 설치 작업은 동시에 이루어지는 것을 특징으로 하는,
액화천연가스 저장탱크의 단열박스 설치방법.The method according to claim 2,
In the fourth step, characterized in that the installation of the standard thermal insulation box and the installation of the non-standard thermal insulation box are performed at the same time,
How to install the insulation box of a liquefied natural gas storage tank.
KR1020180119568A 2018-10-08 2018-10-08 Method for installating insulation box of lng storage tank KR20200039948A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022200539A1 (en) * 2021-03-24 2022-09-29 Gaztransport Et Technigaz Tracing method for the construction of a liquefied gas storage installation comprising a polygonal bearing structure
FR3129704A1 (en) * 2021-11-30 2023-06-02 Gaztransport Et Technigaz Method for assembling a watertight and thermally insulating tank integrated into a load-bearing structure
WO2024068998A1 (en) * 2022-09-30 2024-04-04 Gaztransport Et Technigaz Computer-implemented geometry monitoring method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022200539A1 (en) * 2021-03-24 2022-09-29 Gaztransport Et Technigaz Tracing method for the construction of a liquefied gas storage installation comprising a polygonal bearing structure
FR3129704A1 (en) * 2021-11-30 2023-06-02 Gaztransport Et Technigaz Method for assembling a watertight and thermally insulating tank integrated into a load-bearing structure
WO2024068998A1 (en) * 2022-09-30 2024-04-04 Gaztransport Et Technigaz Computer-implemented geometry monitoring method
FR3140434A1 (en) * 2022-09-30 2024-04-05 Gaztransport Et Technigaz Computer-implemented geometry control method

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