To provide a liquified gas carrier capable of confirming whether or not malfunction occurs in a supporting member between an outer tank body and an inner tank body of a double shell tank.SOLUTION: A double shell tank 3 mounted on a hull of a liquified gas carrier includes: an inner tank 4 including an inner tank body 41 and an inner tank dome 42; an outer tank 5 including an outer tank body 51 and an outer tank dome 52; and a supporting member provided between the outer tank body 51 and the inner tank body 41. The outer tank dome 52 is divided into a fixed part 52A and a movable part 52B by a bellows 55, and the movable part 52B is connected to the inner tank dome 42. A tank cover 7 includes a cylindrical part 72 inserted into the outer tank dome 52, and an elastic member 8 is interposed between the cylindrical part 72 and a dome flange 56 provided on the movable part 52B of the outer tank dome 52. Multiple displacement measuring mechanisms 9 to measure the displacement of the movable part 52B of the outer tank dome 52 with respect to the tank cover 7 are arranged on the circumference surrounding the outer tank dome 52.SELECTED DRAWING: Figure 3
【課題】二重殻タンクの外槽本体部と内槽本体部との間の支持部材に不具合が生じていないか否かを確認することができる液化ガス運搬船を提供する。【解決手段】液化ガス運搬船の船体に搭載される二重殻タンク3は、内槽本体部41および内槽ドーム42を含む内槽4と、外槽本体部51および外槽ドーム52を含む外槽5と、外槽本体部51と内槽本体部41との間に設けられた支持部材を含む。外槽ドーム52はベローズ55により固定部52Aと可動部52Bとに分割され、可動部52Bは内槽ドーム42と連結される。タンクカバー7は外槽ドーム52に挿通される筒状部72を含み、この筒状部72と外槽ドーム52の可動部52Bに設けられたドームフランジ56との間には弾性部材8が介在している。外槽ドーム52を取り巻く円周上には、タンクカバー7に対する外槽ドーム52の可動部52Bの変位を計測するための複数の変位計測機構9が配置されている。【選択図】図3
LIQUIFIED GAS CARRIER
液化ガス運搬船
2022-03-04
Patent
Electronic Resource
Japanese