Liquefied natural gas carrier independent cargo space insulation layer system and construction method thereof

Abstract

The invention relates to a liquefied natural gas carrier independent cargo space insulation layer system and a construction method thereof. The liquefied natural gas carrier independent cargo space insulation layer system comprises a prefabricated insulation plate module, wherein the prefabricated insulation plate module comprises anti-splashing screen plates and a polyurethane foam insulation plate; the anti-splashing screen plates which are installed continuously and elastic sub-screen wall film seal connectors which are arranged between above a gap between two adjacent anti-splashing screen plates in a bonding manner and used for sealing the gap form a sub-screen wall layer; and the liquefied natural gas carrier independent cargo space insulation layer system comprises a protection layer, a filling insulation material, a fixed bolt, a nut and a seal washer. By adopting the technical scheme, the insulation problem of an IMO B-type cargo space can be solved.

Description

technical field [0001] The invention relates to the technical field of new liquefied natural gas ships, in particular to a construction method of a prefabricated heat insulation panel module, a heat insulation layer system of an independent liquid cargo tank of a liquefied natural gas ship and a construction method thereof. Background technique [0002] Liquefied natural gas refers to a colorless, transparent low-temperature liquid that cools natural gas whose main component is methane to about -163°C and compresses it to 1 / 600 of its gas volume. It is an important clean energy. The liquefied natural gas ship is the main means of transportation of liquefied natural gas at sea. It is a high-tech, high-difficulty and high-value-added ship, known as the "crown jewel" of the world's shipbuilding. [0003] During the voyage of LNG ships, the temperature difference between the liquid cargo and the external environment is as high as nearly 200°C, so a large amount of heat will flo...

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Problems solved by technology

[0003] During the voyage of LNG ships, the temperature difference between the liquid cargo and the external environment is as high as nearly 200°C, so a large amount of heat will flow into the tank through the liquid cargo containment system, causing the liquid cargo to evaporate. On the one hand, it will cause cargo loss. Evaporation of the liquid cargo will cause the pressure in the cargo tank to rise, endangering the safety of the ship's navigation

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