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Film type heat insulation box for liquefied natural gas ship and construction method thereof

A liquefied natural gas, film-based technology, applied in ship construction, ship components, ship design, etc., can solve the problems of high water absorption of glass wool, long construction and installation period, high water vapor passing rate, and achieve overall light weight and reduce transportation. cost, the effect of reducing the cost of the manufacturing process

Active Publication Date: 2018-03-13
SHANGHAI JIAO TONG UNIV
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  • Abstract
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Problems solved by technology

[0007] In view of the above-mentioned defects of the prior art, the purpose of the present invention is to provide a thin-film type LNG ship thermal insulation box and its construction method to solve the problems of high daily evaporation rate and construction and installation period in the LNG maintenance system of the LNG ship. Long, high water absorption rate of glass wool, high water vapor transmission rate, etc.

Method used

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  • Film type heat insulation box for liquefied natural gas ship and construction method thereof
  • Film type heat insulation box for liquefied natural gas ship and construction method thereof

Examples

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Embodiment 1

[0063] Such as figure 1 As shown, the composition of the film-type liquefied natural gas marine insulation box of this embodiment includes a plywood panel 1, a rigid polyurethane foam board 2, and a plywood assembly box 3; Holes 4; the assembled heat insulation box is fixedly bonded with the inner hull 6 of the ship through the viscous resin rope 5;

[0064] Such as figure 2 As shown, paste with glass cloth 7 on the drilled hole 4;

[0065] The surface of the plywood panel on the heat insulation box is covered with a dense metal film welded by invar steel or 9% nickel steel; the size of the heat insulation box is 1200mm×1000mm×530mm (length×width×thickness).

[0066] The construction method includes the following steps:

[0067] Take the unnoded part of the trunk center of birch in the frigid zone and cut it into single pieces, and then heat-press through steps such as gluing and billeting to obtain plywood, with a thickness of 12mm;

[0068] Rigid polyurethane foam board...

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Abstract

The invention discloses a film type heat insulation box for a liquefied natural gas ship and a construction method thereof. The film type heat insulation box is composed of plywood and a hard polyurethane foam plate. The heat insulation box adopts one layer, a compact metal film covers the upper surface of the heat insulation box, and the heat insulation box is directly connected with an inner bottom plate of a hull through viscous resin ropes. The construction method comprises the steps of plate cutting, drilling, forming of a T-shaped groove, assembling and bonding. Through optimal assembling of the low-density hard polyurethane foam plate and the plywood, the daily evaporation rate of a liquefied natural gas cabin of the liquefied natural gas ship is decreased, and the long-term servicestability of a heat insulation system is improved; and meanwhile a multiple-layer heat insulation box is simplified into a one-layer heat insulation box, so that the weight of the whole heat insulation box is reduced, the loading space is enlarged, the construction, mounting and transport costs are lowered, and the transport efficiency and safety are improved.

Description

technical field [0001] The invention belongs to the technical field of liquefied natural gas ships, in particular to a film-type heat insulating box for liquefied natural gas ships and a construction method thereof. Background technique [0002] The main component of natural gas (NG) is methane, which releases less sulfur dioxide and nitrogen oxides during combustion, and is a clean energy. Liquefied natural gas (LNG) refers to a low-temperature colorless and transparent liquid that is condensed by cooling natural gas whose main component is methane to about -163°C. Since the volume of natural gas after liquefaction is only about 1 / 600 of that in the gaseous state, it can be greatly reduced. Improve transportation efficiency. Liquefied natural gas ship is the main means of transportation of liquefied natural gas at sea. It is a high-tech, difficult and high value-added ship. The cargo maintenance system (CCS) in the liquefied natural gas ship is specially designed for stori...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B25/16B63B9/00
CPCB63B25/16B63B71/00
Inventor 张洪斌孙小伟蔡志祥韦越吴敏位元元谢燕萍陶冉
Owner SHANGHAI JIAO TONG UNIV
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