To propose a structure which connects an outer tank and an inner tank body to an inner tank protruding part (an inner tank dome) protruding from the inner tank body in a double shell tank.SOLUTION: A double shell tank includes: an inner tank having an inner tank body in which a liquefied gas is stored, an inner tank protruding part protruding in a predetermined protruding direction farther than an inner tank opening provided at the inner tank body, and a connection part which connects an opening edge of the inner tank opening with the inner tank protruding part and in which a space surrounded by the inner tank body, the connection part, and the inner tank protruding part is formed; and an outer tank which houses the inner tank body and is joined to the inner tank protruding part. The connection part has an expansion/contraction structure which may expand in the protruding direction and contract by elastic deformation.SELECTED DRAWING: Figure 3
【課題】二重殻タンクにおいて、内槽本体から突出した内槽突出部(内槽ドーム)に外槽及び内槽本体を連結する構造を提案する。【解決手段】二重殻タンクは、液化ガスを収容する内槽本体、内槽本体に設けられた内槽開口よりも所定の突出方向へ突出した内槽突出部 、及び、内槽開口の開口縁と内槽突出部とを連結する連結部とを有し、内槽本体、連結部、及び内槽突出部に囲まれた空間が内部に形成された内槽と、内槽本体を収容し、内槽突出部と接合された外槽とを備える。連結部が弾性変形により突出方向へ伸縮可能な伸縮構造を有する。【選択図】図3
DOUBLE SHELL TANK AND SHIP
二重殻タンク及び船舶
2022-10-14
Patent
Electronic Resource
Japanese
IPC: | F17C Behälter zum Aufnehmen oder Speichern verdichteter, verflüssigter oder verfestigter Gase , VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B65D Behältnisse zur Lagerung oder zum Transport von Gegenständen oder Materialien [Container], z.B. Säcke, Beutel, Fässer, Flaschen, Dosen, Kästen, Büchsen, Schachteln, Packkörbe, Tonnen, Gläser, Flüssigkeitsbehälter, Trichtersilos, Transportbehälter , CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS |