B-type containment system supporting device and installation method of large lng ship

Abstract

The invention discloses a support device for a B type enclosure system of a large LNG carrier. The support device comprises a first cylinder bearing wood and a second cylinder bearing wood; the secondcylinder bearing wood is arranged on the periphery of the first cylinder bearing wood in a sleeving mode to form a supporting main body, and the upper end face of the supporting main body is providedwith an upper panel and the lower end face of the supporting main body is provided with a lower panel; an upper part criss-cross bracket plate is arranged on the upper surface of the upper panel, anda lower part criss-cross bracket plate is arranged on the lower surface of the lower panel; and an upper part support circular ring and a lower part support circular ring are separately arranged on the outer wall of the second cylinder bearing wood, an upper part circular ring bracket plate is arranged on the outer side of the upper part support circular ring and is fixed on the lower surface ofthe upper panel, and a lower part circular ring bracket plate is arranged on the outer side of the lower part support circular ring and is fixed on the upper surface of the lower panel. The support device for the B type enclosure system of the large LNG carrier is simple to manufacture and easy to install, and the supporting main body can simultaneously transmit loads in the vertical and horizontal directions and can withstand any load in the horizontal direction, so that the action of rolling and pitching is prevented.

Description

technical field [0001] The invention belongs to the field of shipbuilding, and in particular relates to a support device for a B-type containment system of a large LNG ship and an installation method thereof. Background technique [0002] The B-type containment system of a large LNG carrier is characterized by an independent self-sustaining containment system, and the containment system and the hull components are only connected through support seats. When a ship sails at sea, affected by waves, it will produce hull motion states such as rolling, pitching, and heaving, which will cause relative motion between the relatively independent containment system and the hull structure, which will aggravate the sloshing of LNG liquid cargo , increase the evaporation rate of the liquid cargo, and more seriously may cause damage to the containment system, damage the external insulation layer, and cause leakage of cryogenic liquid. [0003] In order to avoid the above problems, it is n...

AI Technical Summary

Problems solved by technology

When a ship sails at sea, affected by waves, it will produce hull motion states such as rolling, pitching, and heaving, which will cause relative motion between the relatively independent containment system and the hull structure, which will aggravate the sloshing of LNG liquid cargo , increase the evaporation rate of the liquid cargo, and more seriously may cause damage to the containment system, damage the external insulation layer, and cause leakage of cryogenic liquid

[0003] In order to avoid the above problems, it is necessary to install vertical support devices, anti-sway support devices, and anti-pitch support devices on the periphery of the containment system to support the self-weight of the containment system and resist relative movement, and a large number of support devices need to be arranged, resulting in Insufficient clearance between the enclosure system and the hull structure increases the difficulty of subsequent construction and maintenance

The setting of a large number of supporting devices will also damage the integrity of the external insulation layer, increasing the risk of cryogenic liquid leakage

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