LNG CARGO HOLD TEST METHOD, OFFSHORE STRUCTURE TO WHICH SAME IS APPLIED, AND LIQUID NITROGEN SUPPLY SYSTEM OF OFFSHORE STRUCTURE

Disclosed are a liquefied natural gas (LNG) cargo hold test method, an offshore structure to which same is applied, and a liquid nitrogen supply system of an offshore structure. An LNG cargo hold test method according to an embodiment of the present invention comprises the steps of: (a) after buildi...

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Bibliographische Detailangaben
Hauptverfasser:	OH, Pilju, KIM, Sin, KIM, Jaewoo, JO, Hyungwook, BAE, Jonghun, YOON, Jungwook, HA, Taekwan, SA, Gongwan, HWANG, Wooyeon, KIM, Minki
Format:	Patent
Sprache:	eng ; fre ; kor
Schlagworte:	BLASTING EQUIPMENT FOR SHIPPING FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES FIXED-CAPACITY GAS-HOLDERS HEATING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LIGHTING MEASURING MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS RELATED EQUIPMENT SHIPS OR OTHER WATERBORNE VESSELS STORING OF DISTRIBUTING GASES OR LIQUIDS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR TRANSPORTING VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES WEAPONS
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Beschreibung
Zusammenfassung:	Disclosed are a liquefied natural gas (LNG) cargo hold test method, an offshore structure to which same is applied, and a liquid nitrogen supply system of an offshore structure. An LNG cargo hold test method according to an embodiment of the present invention comprises the steps of: (a) after building an LNG cargo hold of a floating liquefied natural gas (FLNG) facility, performing a primary integrity test for a secondary barrier of the LNG cargo hold; (b) performing a cooldown operation for the inside of the LNG cargo hold; and (c) performing a secondary integrity test for the secondary barrier of the LNG cargo hold, wherein steps (a) to (c) are performed for the LNG cargo hold of the FLNG facility in a state where the FLNG facility is located onshore, and step (b) is performed using one refrigerant except for LNG. L'invention concerne un procédé de test de cale de gaz naturel liquéfié (GNL), une structure en haute mer à laquelle celui-ci est appliqué et un système d'alimentation en azote liquide d'une structure en haute mer. Un procédé de test de cale de GNL selon un mode de réalisation de la présente invention comporte les étapes consistant à : (a) après la construction d'une cale de GNL d'une installation de gaz naturel liquéfié flottant (GNLF), réaliser un test d'intégrité primaire pour une barrière secondaire de la cale de GNL ; (b) réaliser une opération de refroidissement pour l'intérieur de la cale de GNL ; et (c) réaliser un test d'intégrité secondaire pour la barrière secondaire de la cale de GNL, les étapes (a) à (c) étant réalisées pour la cale de GNL de l'installation de GNLF dans un état dans lequel l'installation de GNLF est située à terre et l'étape (b) étant réalisée à l'aide d'un fluide frigorigène à l'exception du GNL. LNG화물창 테스트방법과 이를 적용한 해양구조물 및 해양구조물의 액화질소공급시스템이 개시된다. 본 발명의 실시 예에 따른 LNG화물창 테스트방법은 (a) FLNG의 LNG화물창 건조 이후, LNG화물창의 2차방벽에 대한 제1차 건전성 테스트를 수행하는 단계; (b) LNG화물창 내부에 대한 쿨다운 작업을 수행하는 단계; 및 (c) LNG화물창의 2차방벽에 대한 제2차 건전성 테스트를 수행하는 단계;를 포함하되, (a) 내지 (c) 단계는 FLNG를 온쇼어에 배치시킨 상태에서 FLNG의 LNG화물창에 대해 수행되고, (b) 단계는 LNG를 제외한 냉매 중 어느 하나를 이용하여 수행된다.