Sealed wall with reinforced corrugated membrane

Patent metadata

Field	Value
Publication number	US-11913604-B2
Application number	US-201916965577-A
Country	US
Kind code	B2
Filing date	Feb 1, 2019
Priority date	Feb 1, 2018
Publication date	Feb 27, 2024
Grant date	Feb 27, 2024

Abstract

Corrugated fluid-tight membrane fluid-tight wall (1) including two series of parallel corrugations forming a plurality of nodes (5) at the crossings of said series of corrugations,wave reinforcements (11) being arranged under the corrugations (3) of the first series of corrugations (3),two successive wave reinforcements (11) in a corrugation (3) each including a hollow sole (15) and a reinforcement portion (16) disposed above the sole (15), the two wave reinforcements (11) being developed in the corrugation (3) on either side of a node (5),a connecting member (13) at the level of the node (5) being nested in the soles (15) of said two wave reinforcements (11) in such a manner as to assemble the two wave reinforcements (11) in an aligned position.

First claim

The invention claimed is:

1. A fluid-tight and thermally insulating tank wall, comprising:
a thermally insulating barrier and a corrugated fluid-tight membrane, the thermally insulating barrier having a support surface, the corrugated fluid-tight membrane including a first series of parallel corrugations and a second series of parallel corrugations and plane portions situated therebetween that rest on the support surface of the thermally insulating barrier, said first and second series of parallel corrugations extending in intersecting directions and forming a plurality of nodes at intersections thereof, and
wave reinforcements being arranged under the corrugations of the first series of corrugations,
wherein two successive wave reinforcements in a corrugation of the first series of corrugations each include a sole including a lower wall resting on the support surface of the thermally insulating barrier and a reinforcement portion disposed above the sole in a thickness direction of the tank wall, the two wave reinforcements—being developed longitudinally in the corrugation on either side of a node,
said soles being hollow, a hollow portion of said soles having a plane section parallel to the support surface of the thermally insulating barrier, a connecting member extending in said corrugation at a level of the node and being nested in the soles of said two wave reinforcements in such a manner as to assemble the two wave reinforcements in an aligned position, and an end of the connecting member nested in said sole having a plane section extending parallel to said lower wall, said end of the connecting member having a width, the width being measured in a direction perpendicular to a longitudinal direction of said corrugation and perpendicular to the thickness direction of the tank wall, the width being greater than a thickness of said end of the connecting member, the thickness of said end of the connecting member being measured in the thickness direction of the tank wall.

2. The fluid-tight and thermally insulating tank wall according to claim 1 , wherein the sole of one of said wave reinforcements further includes an upper wall parallel to the lower wall-resting on the support surface of the thermally insulating barrier, the reinforcement portion of said wave reinforcement-extending above the upper wall.

3. The fluid-tight and thermally insulating tank wall according to claim 1 , wherein at least one of said wave reinforcements is associated with an attached spacer engaged in said node-, an end face of the attached spacer opposite the node forming an abutment surface for an end face of the wave reinforcement facing the node, said attached spacer including a passage extending the hollow portion of the sole of the wave reinforcement in the direction of the other wave reinforcement and having the connecting member passed through it.

4. The fluid-tight and thermally insulating tank wall according to claim 3 , wherein the attached spacer is fixed to the connecting member.

5. The fluid-tight and thermally insulating tank wall according to claim 4 , wherein the node includes a summit, said corrugation including on either side of the summit a concave portion forming a constriction of the corrugation, the attached spacer extending in the node—as far as the constriction of the corrugation—situated on the corresponding side of the summit or beyond said constriction of the corrugation.

6. The fluid-tight and thermally insulating tank wall according to claim 1 , wherein the connecting member includes an abutment surface adapted to limit insertion of the connecting member into one of said soles.

7. The fluid-tight and thermally insulating tank wall according to claim 6 , wherein the connecting member includes an overthickness or an overwidth, the connecting member having, at a level of said overthickness or overwidth, a section, the dimensions of which are greater than the dimensions of the hollow portion of the sole or soles, said overthickness or overwidth carrying the abutment surface.

8. The fluid-tight and thermally insulating tank wall according to claim 1 , wherein the wave reinforcements arranged under the corrugations of the first series of parallel corrugations are first wave reinforcements, the tank wall further including second wave reinforcements arranged under corrugations of the second series of parallel corrugations, two second wave reinforcements being disposed in the corrugation of the second series of parallel corrugations forming the node on either side of said node.

9. The fluid-tight and thermally insulating tank wall according to claim 8 , wherein the second wave reinforcements are hollow, the connecting member including a central portion inserted between the soles of the first wave reinforcements, the connecting member further including two lugs, each of said two lugs projecting from the central portion of the connecting member in a longitudinal direction of the second series of parallel corrugations and penetrating into a respective second wave reinforcement.

10. The fluid-tight and thermally insulating tank wall according to claim 9 , wherein the two lugs are nested in the second wave reinforcements in such a manner as to assemble said two second wave reinforcements to the connecting member.

11. The fluid-tight and thermally insulating tank wall according to claim 10 , wherein the connecting member includes a plane part having the shape of a cross, said lugs and said ends of the connecting member forming four branches of the cross.

12. The fluid-tight and thermally insulating tank wall according to claim 1 , wherein the corrugated fluid-tight membrane includes a corrugated rectangular sheet metal part, said first series of parallel corrugations extending in a lengthwise direction of the sheet metal part, said second series of parallel corrugations extending in a widthwise direction of the sheet metal part,
wherein the wave reinforcements arranged under a corrugation of the first series of parallel corrugations include a row of aligned wave reinforcements, said row of wave reinforcements being developed over substantially all a length of the rectangular sheet metal part, said wave reinforcements each including a hollow sole including a lower wall resting on the support surface of the thermal insulating barrier and a reinforcement portion disposed above the sole, and being assembled two by two by a plurality of connecting members nested in the soles of the successive wave reinforcements at the level of the nodes of said corrugation.

13. The fluid-tight and thermally insulating tank wall according to claim 12 , wherein the wave reinforcements arranged under the corrugations of the first series of parallel corrugations are first wave reinforcements, the tank wall further including second wave reinforcements arranged under corrugations of the second series of parallel corrugations, two second wave reinforcements being disposed in the corrugation of the second series of parallel corrugations forming the node on either side of said node,
wherein the second wave reinforcements are hollow, the connecting member including a central portion inserted between the soles of the first wave reinforcements, the connecting member further including two lugs, each of said two lugs projecting from the central portion of the connecting member in a longitudinal direction of the second series of parallel corrugations and penetrating into a respective second wave reinforcement,
wherein the two lugs are nested in the second wave reinforcements in such a manner as to assemble said two second wave reinforcements to the connecting member,
wherein the connecting member includes a plane par

Assignees

• Gaztransport Et Technigaz

Inventors

• Sassi Mohamed
• Boyeau Marc
• Philippe Antoine
• Delanoe Sébastien
• Berger Vincent
• Bougault Johan

Classifications

• F17C13/004 Primary

  for large storage vessels not under pressure (F17C13/008 and F17C13/02 - F17C13/12 take precedence) · CPC title

• B65D90/027 Primary

  Corrugated or zig-zag structures; Folded plate · CPC title

• B65D90/041

  Rigid liners fixed to the container · CPC title

• B67D7/38

  Arrangements of hoses, e.g. operative connection with pump motor (hoses in general F16L11/00) · CPC title

• B67D7/58

  Arrangements of pumps · CPC title