LOW TEMPERATURE LIQUEFIED GAS CARRIER

• Main Authors: YOSHIOKA TOSHIO, TAKAHAMA HIDEMASA, YOSHIHISA HIDEAKI, IMURA YUKIHIRO, HAYAKAWA KOUJI, MURATA SEIICHIROU, HIGASHIMURA MASAYOSHI, TATEISHI MASARU, ABIKO REIICHIROU
• Format: Patent
• Language: English
• Published: 08.05.1985
• Subjects: BLASTING; EQUIPMENT FOR SHIPPING; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; STORING OF DISTRIBUTING GASES OR LIQUIDS; TRANSPORTING; VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES; WEAPONS

PURPOSE:To make an existing LNG tanker conform to the IMO code without need for carrying out large conversion by bonding cross members of normal steel to the inner face of a secondary protective wall made of low-temperature steel, fixing a plate made of low-temperature steel to the inner end face of each cross member through a stringer member, and installing low-temperature steel plates on which a heat insulating member is laminated, between these plates. CONSTITUTION:The secondary protective wall 4 of an LNG gas tank is made of low-temperature steel, and cross members 5 bonded to its inside is made of normal steel. A plate 10 made of low-temperature steel is fixed to the inner end face of each cross member 5 through a stringer 9. A low-temperature steel plate 13, on which a heat insulating member 12 is laminated, is installed across each plate 10. Thereby, even if the LNG tank is broken causing LNG to leak out, the low-temperature breakage of the cross members 5 can be prevented, while enabling an existing LNG tanker to conform to the IMO code without need for carrying out large conversion.