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Self-supporting timber box for the support and thermal insulation of an impermeable tank membrane

A self-supporting, thin-film technology, applied in the direction of bulk cargo, fixed-capacity gas storage tanks, applications, etc., can solve the problems of membrane rupture, working costs, etc.

Active Publication Date: 2005-09-21
GAZTRANSPORT & TECHNIGAZ
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The box must withstand these stresses over a long service life, with the risk of rupture of the membrane when the underlying box fails, and the cost of work required to replace the box

Method used

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  • Self-supporting timber box for the support and thermal insulation of an impermeable tank membrane
  • Self-supporting timber box for the support and thermal insulation of an impermeable tank membrane
  • Self-supporting timber box for the support and thermal insulation of an impermeable tank membrane

Examples

Experimental program
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Embodiment Construction

[0031] The general structure of a sealed and insulated storage tank contained and fixed in the double hull of a methane tanker type vessel is known and is polyhedral in shape. Therefore, this specification will be limited to areas of the tank wall such as figure 1 As shown in , it should be understood that all tank walls have similar constructions.

[0032] figure 1The double hull area of ​​the ship, indicated by reference numeral 1, is shown. The tank wall comprises the following parts arranged in sequence along its thickness: a second layer of insulation 2 formed by a box 3 juxtaposed on the double hull 1 and passed through a second holding part 4 and supported on the double hull; second impermeable membrane 5, the second impermeable membrane 5 is supported by the box 3; A holding member 8 is juxtaposed and supported on the second impermeable membrane 5, the first holding member 8 itself is fixed on the second holding member 4; and a first impermeable membrane 9, which is...

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PUM

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Abstract

Self-supporting timber box having a base panel, lateral walls each projecting perpendicularly from one side of the base panel to delimit the profile of an internal space of the box, a plurality of internal partitions ( 14 ) which are parallel to each other and perpendicular to the base panel and which extend between the lateral walls in such a way as to divide the internal space into a plurality of compartments intended to receive a heat-insulating lining, and a cover panel, wherein it has at least one stiffening element ( 16 ) which is positioned in the internal space transversely with respect to the internal partitions and which has an area of connection ( 17, 18 ) to each of the internal partitions to increase the buckling resistance of the internal partitions, the area of connection extending over a depth greater than or equal to half of the distance between the base and cover panels.

Description

technical field [0001] The present invention relates to the field of membrane tanks for containing cold liquids and comprising a tank wall supported on a support structure of a ship. The invention also relates to a self-supporting wooden box for the support and insulation of the membranes of the tank. Background technique [0002] In the field of maritime transport of liquefied gases, especially gases with a very high methane content, a type of membrane tank is known for containing cold liquids and comprising tank walls supported on the support structure of the ship, said tank The tank walls comprise, in their thickness, in the direction from the outside to the inside of the tank: a second thermal insulation layer supported on the support structure; a second impermeable membrane, the second impermeable a membrane supported on said second insulating layer; a first insulating layer supported on said second impermeable membrane; and a first impermeable membrane supported on sa...

Claims

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Application Information

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IPC IPC(8): B63B25/16B63BB63B25/08B65D90/02B65D90/06E04B1/70F17CF17C3/02F17C13/08
CPCY10S220/901B63B25/16F17C2203/0354F17C2203/0358F17C2270/0107F16B17/00F17C3/02B63B25/08B65D90/02B65D90/06B65D90/08F17C3/04F17C13/001F17C13/08
Inventor J·德莱姆G·康莱
Owner GAZTRANSPORT & TECHNIGAZ
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