A storage tank system features a tank made of rigid material and an insulation assembly. The insulation assembly includes an inner membrane and an outer membrane wherein the inner membrane is located within the outer membrane and at least one of the inner membrane and outer membrane is made of a flexible material. An insulation medium is located in a space between the inner membrane and the outer membrane and a vacuum is applied to the space.

A storage tank system features a tank made of rigid material and an insulation assembly. The insulation assembly includes an inner membrane and an outer membrane wherein the inner membrane is located within the outer membrane and at least one of the inner membrane and outer membrane is made of a flexible material. An insulation medium is located in a space between the inner membrane and the outer membrane and a vacuum is applied to the space.

In a membrane type heat insulation system for a cryogenic liquefied gas carrier cargo tank and a liquefied gas fuel container, a secondary heat insulation layer comprises a plurality of panels which are stacked in multiple layers while each pair of upper and lower panels is arranged to intersect each other, whereby heat loss which may occur in the gap between the panels can be minimized and deformation due to a temperature difference can be minimized.

In a membrane type heat insulation system for a cryogenic liquefied gas carrier cargo tank and a liquefied gas fuel container, a secondary heat insulation layer comprises a plurality of panels which are stacked in multiple layers while each pair of upper and lower panels is arranged to intersect each other, whereby heat loss which may occur in the gap between the panels can be minimized and deformation due to a temperature difference can be minimized.

The invention concerns a forming device intended to form a bend in a corrugation, the forming device comprising: a bottom frame (4) having a planar mounting surface (6) intended to receive a sheet metal plate having a corrugation projecting relative to a planar portion of the sheet metal plate, a projecting counter-form (5) arranged on the mounting surface and intended to be accommodated in the corrugation, the projecting counter-form having a stationary portion (7) and a movable portion (8) that is hinged, relative to the stationary portion, about an axis perpendicular to the mounting surface, a top frame (34) arranged above the bottom frame, a press configured to lower the top frame towards the bottom frame, and a hollow upper die carried by the top frame between the top frame (34) and the bottom frame (4), the hollow upper die (36, 37) being arranged above the movable portion of the projecting counter-form.

The invention concerns a forming device intended to form a bend in a corrugation, the forming device comprising: a bottom frame (4) having a planar mounting surface (6) intended to receive a sheet metal plate having a corrugation projecting relative to a planar portion of the sheet metal plate, a projecting counter-form (5) arranged on the mounting surface and intended to be accommodated in the corrugation, the projecting counter-form having a stationary portion (7) and a movable portion (8) that is hinged, relative to the stationary portion, about an axis perpendicular to the mounting surface, a top frame (34) arranged above the bottom frame, a press configured to lower the top frame towards the bottom frame, and a hollow upper die carried by the top frame between the top frame (34) and the bottom frame (4), the hollow upper die (36, 37) being arranged above the movable portion of the projecting counter-form.

The present invention is a system and method of storing various quantities of cryogenic material with lower cost than systems found in prior art. Novel feature of the system is the ability to use minimum amounts of different types of energy to maintain various quantities of cryogenic material. An additional novel feature is the use of common components and materials.

The present invention is a system and method of storing various quantities of cryogenic material with lower cost than systems found in prior art. Novel feature of the system is the ability to use minimum amounts of different types of energy to maintain various quantities of cryogenic material. An additional novel feature is the use of common components and materials.

Disclosed is a corner structure (100) of a liquefied gas storage tank, wherein the corner structure is installed at a corner of a storage tank for loading liquefied gas and supports sealing walls (51, 52) that prevent leakage of the liquefied gas. The corner structure (100) may include: two insulation members (110) arranged on the inner surface of a hull structure so as to be oriented in different directions; and mobile members (130) which are installed on the respective insulation members (110) and to which the sealing walls (51, 52) are joined. The mobile members (130) may be slidably coupled to the insulation members 110, and a plurality of the mobile members (130) may be arranged spaced apart from each other in a straight line on one of the insulation members.

Disclosed is a corner structure (100) of a liquefied gas storage tank, wherein the corner structure is installed at a corner of a storage tank for loading liquefied gas and supports sealing walls (51, 52) that prevent leakage of the liquefied gas. The corner structure (100) may include: two insulation members (110) arranged on the inner surface of a hull structure so as to be oriented in different directions; and mobile members (130) which are installed on the respective insulation members (110) and to which the sealing walls (51, 52) are joined. The mobile members (130) may be slidably coupled to the insulation members 110, and a plurality of the mobile members (130) may be arranged spaced apart from each other in a straight line on one of the insulation members.