The invention relates to an installation for storing and transporting a liquefied gas, having a sealed pipe (7) that passes through the tank wall so as to define a fluid passage between the inside and the outside of the tank, a sealed metal sheath (29) that is disposed around the sealed pipe (7) and fitted in the opening (22) in the load-bearing wall, the sealed sheath having a longitudinal portion extending at least as far as the sealing membrane (14), the sealing membrane being joined to the sealed sheath (29) in a sealed manner, wherein the load-bearing structure comprises a coaming (24) that protrudes from an outer surface of the load-bearing wall, the sealed pipe being supported by a top wall (26) of the coaming, the sealed sheath (29) having an outer end that is disposed outside the load-bearing wall and attached to the coaming or to the sealed pipe (7) all around the sealed pipe.

Disclosed is a pump tower disposed inside a liquefied gas storage tank so as to supply or discharge liquefied gas to/from the inside of the liquefied gas storage tank. The pump tower, according to one embodiment of the present invention, comprises: a discharge pipe used for discharging the liquefied gas in the liquefied gas storage tank; an emergency pipe equipped with an emergency pump at the lower end thereof; a charge pipe for supplying the liquefied gas into the liquefied gas storage tank; and a support, which is provided on the bottom of the liquefied gas storage tank, for enabling the vertical displacement of the pump tower and restricting the horizontal movement and rotation thereof. The support comprises: a lower body fixed to a hull side; an upper body fixed to a pump tower side; and a wedge member interposed between the lower body and the upper body.

An insulation structure of a membrane type storage tank is disclosed. The membrane type storage tank includes a secondary insulation wall comprising a plurality of secondary insulation panels; a primary insulation wall which comprises a plurality of primary insulation panels, and which is disposed at the upper part of the secondary insulation wall; and a plurality of fixing devices provided at the upper parts of the secondary insulation panels to be coupled with the primary insulation panels, wherein the plurality of fixing devices are arranged on the center line of the secondary insulation panels in a width direction so that the movement of the fixing devices in the width direction is prevented, and the plurality of fixing devices are arranged to be spaced at equal intervals with respect to the longitudinal direction of the secondary insulation panels.

The present disclosure relates to a vacuum heat-insulation device for a large low-temperature tank, the vacuum heat-insulation device having excellent heat insulation properties and vacuum stability by using a low-temperature heat-insulating material maintained in a vacuum at all times so as to store an ultra-low-temperature liquefied gas such as liquid nitrogen (LN.sub.2) or liquid hydrogen (LH.sub.2), and to a vacuum heat-insulation device for a low-temperature tank, the vacuum heat-insulation device having a flexible structure in which a vacuum jacket is partially contractible according to contraction of a low-temperature tank or a low-temperature heat-insulating layer.

A pressure vessel and a system of a vehicle with such a pressure vessel, wherein the pressure vessel is suitable for storage of pressurized fluids, comprising a housing which extends along a longitudinal axis. The housing defines an inner volume. The shape of the housing, in longitudinal cross-section, is defined by the circumference of a set of circles. The set of circles comprises a central circle, with a center point which is defined by the longitudinal axis, and four primary peripheral circles each of which intersects with the central circle at two points. The primary peripheral circles are axially distributed on the central circle in opposing pairs.

The invention discloses a bimetallic cryogenic membrane storage compartment for liquefied natural gas (LNG) storage. The invention is based on the design of bimetallic membrane panels and two insulating panels to achieve two completely independent insulation spaces, fully meeting the relevant requirements of the amendments to the International Code for the Construction and Equipment of Ships Carrying Liquefied Natural Gas in Bulk (“IGC CODE”) adopted on May 22, 2014. The invention improves the safety of the cryogenic membrane storage compartment, reduces the limitation of free liquid level loading of liquid cargo in the cargo compartment, reduces the application and time consuming of low-temperature resistant glue in the construction process, and adopts the more mature and safe design method of welding bimetallic membrane panels and the environmental protection method of prefabricated foam insulation panels, thus reducing the construction workload, shortening the construction cycle and improving the safety of the equipment.

A prismatic tank for the containment of liquefied gas. The tank is formed of extruded materials and comprises an outer insulation layer.

The invention relates to an insulating block intended for the thermal insulation of a fluid storage tank comprising: a first plate (11) and a second plate that are parallel to one another, spaced apart in a thicknesswise direction of the insulating block; supporting pillars inserted between said first and second plates (10, 11) in the thicknesswise direction of the insulating block; and a heat-insulating lining positioned between the supporting pillars; the first plate (11) comprising reinforced bearing zones (13) against which the supporting pillars (12) come to bear, the reinforced bearing zones (13) being linked to one another by a network of ribs (16).

A heat insulation structure for corner parts of a liquefied natural gas (LNG) storage tank includes a secondary insulation wall arranged on an inner wall of a hull, a secondary sealing wall disposed on the secondary insulation wall, a primary insulation wall arranged on the secondary sealing wall, and a primary sealing wall disposed on the primary insulation wall. The heat insulation structure includes a corner assembly finishing an edge of the primary sealing wall at a corner part of the storage tank to complete sealing of the storage tank. The corner assembly includes an endcap sheet finishing each of four corners of the primary sealing wall provided to each surface of the storage tank to seal the four corners. The endcap sheet includes an endcap corrugation and an elongated corrugation extending in a direction perpendicular to a direction in which the endcap corrugation extends.

An insulation box of an insulating barrier in a liquefied gas carrier includes a box structure that includes a bottom panel, a top panel, external pillars, and optionally at least one internal partition that define at least one void. The at least one void includes at least one multilayer insulation board. Each of the at least one multilayer insulation board includes at least one facer layer, at least one first polyurethane layer having a first density from 100 kg/m.sup.3 to 2000 kg/m.sup.3 according to ASTM D 1622, and at least one second polyurethane layer having a second density of less than 100 kg/m.sup.3 according to ASTM D 1622.