CN107076360B - Corner piece for constructing sealing membrane of fluid reservoir - Google Patents

Corner piece for constructing sealing membrane of fluid reservoir Download PDF

Info

Publication number
CN107076360B
CN107076360B CN201580059487.3A CN201580059487A CN107076360B CN 107076360 B CN107076360 B CN 107076360B CN 201580059487 A CN201580059487 A CN 201580059487A CN 107076360 B CN107076360 B CN 107076360B
Authority
CN
China
Prior art keywords
corner piece
tank
corrugations
peak
vessel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201580059487.3A
Other languages
Chinese (zh)
Other versions
CN107076360A (en
Inventor
奥利维耶·佩罗
安托万·菲利普
菲利普·盖冈
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gaztransport et Technigaz SA
Original Assignee
Gaztransport et Technigaz SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gaztransport et Technigaz SA filed Critical Gaztransport et Technigaz SA
Publication of CN107076360A publication Critical patent/CN107076360A/en
Application granted granted Critical
Publication of CN107076360B publication Critical patent/CN107076360B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
    • B21D13/02—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by pressing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/004—Details of vessels or of the filling or discharging of vessels for large storage vessels not under pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • F17C2201/0157—Polygonal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/052—Size large (>1000 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0358—Thermal insulations by solid means in form of panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0639—Steels
    • F17C2203/0643—Stainless steels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0646—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0648—Alloys or compositions of metals
    • F17C2203/0651—Invar
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/221—Welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/232—Manufacturing of particular parts or at special locations of walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships
    • F17C2270/0107—Wall panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/011—Barges
    • F17C2270/0113—Barges floating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)

Abstract

The present invention relates to a corner piece for constructing a sealing membrane of a fluid reservoir. The corner piece (1) comprising first and second wings (2, 3) inclined relative to each other and meeting at a peak, said corner piece (1) comprising a corrugation (8) extending in a longitudinal direction from one end of the corner piece (1) to the other so as to allow deformation of the corner piece in a transverse direction parallel to the peak (4); the corrugation (8) comprising a first end (8a), a second end (8b) and a central portion (8c) extending between the first and second ends (8b, 8c) along an extension thereof; the first and second end portions (8a, 8c) of the corrugations (8) project outwardly of the corner piece (1) and the central portion (8c) projects inwardly of the corner piece (1).

Description

Corner piece for constructing sealing membrane of fluid reservoir
Technical Field
The present invention relates to a corner piece for constructing a sealing membrane of a fluid reservoir.
The present invention relates in particular to the field of thin-film thermally insulated sealed tanks for storing and/or transporting fluids, such as refrigeration fluids.
Background
Corrugated metal membranes are known in the prior art for forming a hermetic barrier for tanks of liquefied natural gas. The sealing membrane is made up of a plurality of metal plates having a series of vertical corrugations which allow the metal plates to deform under the action of mechanical and thermal stresses generated by the fluid stored in the tank.
Document FR 2996520 describes a metal membrane constituting a secondary sealing barrier, comprising a plurality of metal plates having corrugations projecting towards the inside of the tank. The secondary sealing barrier is supported by a secondary insulating barrier consisting of a plurality of insulating blocks constrained to the supporting structure of the tank. The insulating blocks of the secondary insulating barrier are separated by a gap inside which the corrugations of the metal plates of the secondary sealing barrier are inserted.
At the junction between the two walls of the metal film, the metal film comprises a corner piece which ensures the continuity of the seal at the corner region between the two walls.
With reference to fig. 3, 4 and 5, FR88311 presents a corner piece comprising two corrugations recessed outside the projecting corners of the corner piece, said corrugations extending on one wing of the corner piece, respectively, and a central portion overlapping with the peak and projecting inside the projecting corners of the corner piece.
Disclosure of Invention
The basic idea of the invention is to propose a corner piece that is flexible so as to be able to deform under the effect of mechanical and thermal stresses generated by the liquefied natural gas stored in the tank.
According to one embodiment, the present invention provides a corner piece for constructing a sealing membrane of a fluid storage tank, the corner piece comprising first and second planar wings inclined relative to each other and meeting at a peak, the corner piece comprising a corrugation extending in a longitudinal direction that intersects the peak from one end to the other end of the corner piece, thereby allowing deformation of the corner piece in a transverse direction parallel to the peak; the corrugations include:
-a first end portion on the first wing, the first end portion extending perpendicularly to the peak from the first edge of the angled piece towards the peak;
-a second end portion on the second wing, the second end portion extending perpendicularly to the peak from a second edge of the corner piece opposite to said first edge towards the peak direction;
-a central portion overlapping the peak ridge, the central portion extending between the first and second end portions on an extension of said first and second end portions;
the first and second end portions of the corrugations project outwardly of the corner piece and the central portion projects inwardly of the corner piece.
The corrugated corner piece thus formed has flexibility that allows it to deform under mechanical and thermal stresses, and is particularly suitable for joining metal sheets of can sealing membranes having corrugations projecting towards the outside of the can.
According to embodiments, such corner pieces may include one or more of the following features:
the central portion of the corrugation has a triangular or semi-elliptical cross-section, the height of which profile in the longitudinal direction of the corrugation increases from each end of the central portion towards an intermediate cross-section of the central portion, which intermediate cross-section is located in the plane of the bisection of the angle formed between the first wing and the second wing.
The central portion of the corrugations is in part bordered by corrugations projecting outwardly of the angled member, the outwardly projecting corrugations of the angled member being on either side of the central portion and decreasing in depth towards the ridges.
The end of the corrugation has a triangular or semi-elliptical cross-section.
The triangular or semi-elliptical cross-section of the end of the corrugation has a constant depth.
The median section of the central portion of the corrugation has a height equal to the depth of the end portions of the corrugation.
The geometry of the corner piece is such that it can be unfolded in a plane to the shape of a rectangular piece.
The present invention also provides, according to one embodiment, a thermally insulated sealed tank for storing a fluid, comprising a secondary thermal barrier constrained to a support structure, a secondary sealing membrane supported by the secondary thermal barrier, a primary thermal barrier, and a primary sealing membrane supported by the primary thermal barrier and intended to be in contact with the fluid contained within the tank, wherein:
-the secondary thermal insulation barrier comprises insulating blocks in the shape of rectangular parallelepiped, juxtaposed in parallel rows and columns and separated from each other by gaps;
the secondary sealing membrane comprises a plurality of metal plates comprising at least two orthogonal corrugations parallel to the edges of the thermoblocks and inserted in the gaps provided between the thermoblocks or in the slits provided in the thermoblocks, and a plurality of the above-mentioned corner pieces joining the metal plates of the first and second walls at the corners formed between adjacent first and second walls.
Such tanks may be part of a land based storage facility, e.g. for storing GNL, or be installed in a floating structure offshore or deep sea, especially a methane vessel, a Floating Storage and Regasification Unit (FSRU), a floating production storage offloading unit (FPSO), etc.
According to one embodiment, the invention relates to a vessel for transporting fluids, comprising a double hull and the above-mentioned tank arranged in the double hull.
The invention also provides, according to an embodiment, a method of loading and unloading such a vessel, wherein a fluid is led from a land or floating storage to the vessel's tanks or from the vessel's tanks to a land or floating storage through insulated piping.
According to one embodiment, the invention also provides a transfer system for fluids, comprising a vessel as described above, an insulated pipe designed to connect a tank mounted in the vessel hull to a land or floating storage means, and a pump for leading fluids from the land or floating storage means to the tank of the vessel or from the tank of the vessel to the land or floating storage means through the insulated pipe.
Drawings
The invention will be better understood and other objects, details, characteristics and advantages thereof will appear more clearly from the following description of several particular embodiments of the invention, which is given by way of illustration and not of limitation, and which is made with reference to the accompanying drawings.
FIG. 1 is a perspective view of a corner piece for constructing a sealing membrane of a fluid reservoir.
Figure 2 is a detailed perspective view of the outer surface of the corner piece member of figure 1 at the ridges thereof.
Figure 3 is a detailed perspective view of the inner surface of the corner piece member of figure 1 at the ridges thereof.
Fig. 4 is a cross-sectional view of fig. 1 taken along a plane passing through the longitudinal axis of the corrugations.
Figure 5 is a three quarter side view of the corner piece of figure 1 taken along a longitudinal plane through the longitudinal axis of the corrugations.
Figure 6 is a three quarter side view of the corner piece of figure 1 taken along a transverse plane through the peak of the corner piece.
Figures 7, 8 and 9 show the bending devices in a rest position of lifting, in a middle position of contact with the corner piece and in a bending position at the end of stroke, respectively.
Figures 10, 14 and 18 are front views of the bending device in its rest position of lifting, its intermediate position of contact with the corner piece and its bending position at the end of travel, respectively.
Figures 11, 15 and 19 are side views of the bending device in its rest position of lifting, its intermediate position of contact with the corner piece and its bending position at the end of its stroke, respectively.
Fig. 12, 16 and 20 are cross-sectional views along planes XII-XII, XVI-XVI and XX-XX of fig. 11, 15 and 19, respectively.
Fig. 13, 17 and 21 are cross-sectional views along the planes XIII-XIII, XVII-XVII and XXI-XXI of fig. 10, 14 and 18, respectively.
Figure 22 is a detailed three-quarter bottom view of the bending device taken along plane XII-XII of figure 11.
Figure 23 is a detailed three-quarter upper view of the bending device taken along plane XII-XII of figure 11.
Fig. 24 is a schematic cut-away view of a tank of a methane marine vessel and a loading/unloading terminal for the tank.
Detailed Description
Figures 1 to 6 show a corner piece 1 for constructing a sealing membrane of a fluid reservoir. Such corner pieces are used to join two adjacent walls of a sealing membrane at a corner formed between the two walls.
The corner piece 1 is obtained by bending a metal plate. The metal plate can be made in particular of the following materials: stainless steel; aluminum;i.e. an alloy of iron and nickel, with a typical coefficient of expansion of 1.2 x 10-6To 2X 10-6K-1Or an iron alloy with a high manganese content and an expansion coefficient of 7 x 10-6K-1Magnitude. However, other metals or alloys may be used.
As an example, the metal plate 1 has a thickness of about 0.7 mm. Other thicknesses are also conceivable, it being known that a thickening of the metal sheet leads to an increase in its price and generally to an increase in the rigidity of the corrugations.
The corner piece 1 comprises first and second planar wings 2, 3 inclined relative to each other and meeting at a peak 4. The projection angle formed between the wings is about 135 ° in the embodiment shown. However, it may differ from this angle, for example by about 90 ° when the two adjacent walls to be joined are perpendicular, or more generally between 90 ° (inclusive) and 180 ° (exclusive). Each wing 2, 3 has the shape of a rectangular parallelepiped and therefore comprises two opposite parallel side edges 5, 6 and an end edge 7 opposite the other wing 2, 3.
The corner piece 1 comprises a corrugation 8 giving it flexibility which allows it to deform under the effect of mechanical and thermal stresses generated by the liquefied natural gas stored in the tank. The corrugations 8 extend in a longitudinal direction which intersects the ridges 4 from one end of the angled member 1 to the other. The corrugations 8 thus extend parallel to the opposite sides 5, 6 of the wings 2, 3. The corrugations 8 thus allow the angled sections to deform in a transverse direction parallel to the ridges 4.
The corrugation 8 may be divided into three parts, a first end 8a arranged in the first wing 2, a second end 8b arranged in the second wing 3 and a central part 8c extending between the first and second ends 8a, 8b on an extension thereof.
The first end portion 8a extends from the free edge 7 of the first wing 2 in the direction of the crest 4. Symmetrically, the second end 8b extends from the free edge 7 of the second wing 3 towards the ridge 4. The first and second end portions 8a, 8b of the corrugations project outwardly of the angled member 1, i.e. outwardly of the projecting angle formed between the wings 2, 3. In the embodiment shown, the ends 8a, 8b have a triangular cross-section. However, according to a variant, the ends 8a, 8b have a semi-elliptical section. The depth of the end portions 8a, 8b is constant over their entire length. As an example, the end portion has a depth of between 10 and 60mm, depending on the application considered.
The central portion 8c of the corrugation 8 extends between the wings 2, 3 on the extension of the end portions 8a, 8b and overlaps the peak 4. The central portion 8c projects inwardly of the corner piece 1, that is to say inwardly of the projecting angle formed between the two wings 2, 3. Thus, when the corner piece 1 is in place within the canister, the central portion 8c will project towards the interior of the canister. The central portion 8 has a substantially triangular shape, as shown for example in fig. 6. However, according to another embodiment, not shown, the central portion 8 has a semi-elliptical cross-section.
The height of the central portion 8c of the corrugation increases from each of its ends towards its median section. Here, the "middle section" of the central portion refers to a section of the central portion along a bisecting plane through the ridge 4, which bisects the angle formed between the two wings 2, 3 into two equal angles. The height of the central portion 8c at its median section is substantially equal to the depth of the end portions 8a, 8 b.
It is also seen for example in figure 3 that the inwardly projecting central portion 8c is bordered on both sides of the longitudinal axis of the corrugations 8 by corrugations 9a, 9b projecting towards the outside of the corner piece 1. The bending lines of the corrugations 9a, 9b extend from the crest lines of the end portions 8a, 8b on both sides of the central portion 8 c. The depth of the corrugations 9a, 9b decreases towards the peak 4 such that the corrugations 9a, 9b terminate before the axis of the peak 4.
This arrangement of the end portions 8a and 8b, the central portion 8c and the corrugations 9a and 9b makes it possible to obtain a geometric configuration of the corner piece 1 which can be unfolded in a plane as a rectangular piece. In other words, the configuration in the corrugations 8 of the corner piece 1 is such that the above-mentioned shape does not result in a change in the material length of the metal sheet, and therefore also in the thickness of the metal sheet.
Furthermore, it is seen in particular in fig. 3 or 4 that the central portion 8c of the corrugation 8 has a series of undulations transverse to the longitudinal direction of the corrugation 8. In fact, it is seen in fig. 4 that the peak ridge line 10 of the central corrugation has a series of wave-shaped portions. Such an arrangement makes it possible to impart flexibility to the corner piece 1 in the longitudinal direction of the corrugations 8, allowing slight rotation of the wings 2, 3 relative to each other about the ridges 4 and thus slight variations in the angle formed between the two wings 2, 3.
According to a first application, the corner piece 1 as described above is used to construct a tank as described in document WO 14057221. The general structure of such tanks is well known and has the shape of a polyhedron. From the exterior to the interior of the tank, the wall of the tank comprises a support structure, a secondary insulating barrier comprising insulating blocks constrained to the support structure and anchored thereto by secondary constraining means, a secondary sealing membrane carried by the insulating blocks of the secondary insulating barrier, a primary insulating barrier comprising insulating blocks anchored to the secondary sealing membrane by primary constraining means, and a primary sealing membrane carried by the insulating blocks of the primary insulating barrier and intended to come into contact with the cryogenic fluid contained in the tank.
The supporting structure may in particular be a self-supporting metal plate or, more generally, any type of rigid partition having suitable mechanical properties. The support structure may in particular be formed by a hull or double hull of the vessel. The support structure includes a plurality of walls that define the overall shape of the tank.
The secondary sealing barrier comprises a plurality of metal plates. Each metal sheet comprises at least two orthogonal corrugations projecting towards the inside of the tank. Furthermore, the insulating blocks of the secondary thermal insulation barrier have a rectangular parallelepiped shape and are juxtaposed in parallel rows and columns. According to one embodiment, the insulating blocks of the secondary thermal insulation barrier are separated from each other by a gap inside which the corrugations of the metal sheet are inserted. According to another embodiment, the insulating blocks of the secondary thermal insulation barrier comprise on their inner surface slits inside which the corrugations of the metal sheet are inserted.
At the corner region between two adjacent walls, the corner piece 1 as described above is arranged so that its corrugations 8 lie on the extension lines of the corrugations of the metal sheets of the walls adjacent to each other. The corner piece 1 is joined to the adjacent metal plates by welding to ensure the continuity of the seal at the corner region.
In this first application, the end portions 8a, 8b of the corrugations 8 of the corner piece 1 project outwardly of the tank, while the central portion 8c projects inwardly of the tank. For such applications, the ends 8a, 8b of the corrugations typically have a depth of about 10 to 25 mm.
According to a second application, the corner piece 1 as described above is used to construct a specific area of the primary sealing membrane of the tank, as described for example in documents FR2691520 and FR 2984454. Such a primary sealing film is called "Mark III". The primary sealing film includes a plurality of metal plates welded to each other. Each metal plate comprises at least two orthogonal corrugations protruding from the side of the inner face of the metal plate that will be in contact with the fluid contained in the tank.
In this application, the corner piece 1 may be used in the area of the interruption of the primary sealing membrane at a dome provided in the can. Such domes are called "liquid domes" when used in loading devices inserted in tanks and "gas domes" when used for extracting natural gas in the gaseous phase. Such corner pieces can also be used in the interruption region of the sealing film at the bottom structure of the can for the discharge pump accommodating the can.
In this second application, the protruding corners of the corner piece 1 are directed to the outside of the can. Thus, the end portions 8a, 8b of the corrugations 8 of the corner piece 1 project inwardly of the tank, while the central portion 8c projects outwardly of the tank. For such applications, the ends 8a, 8b of the corrugations typically have a depth of about 40 to 60mm and the projection angle formed between the two limbs of the angled section is about 90 °.
An apparatus and a bending method by which the corrugations 8 can be formed in the corner piece member 1 as described above will be described below with reference to fig. 7 to 23. Conventionally, the "longitudinal" direction of the bending device is along the longitudinal direction of the corrugation to be formed, and the "transverse" direction is transverse to the longitudinal direction of the corrugation to be formed.
First, the metal sheet is bent beforehand to form two planar wings 2, 3 inclined with respect to each other. The corrugations 8 are then formed in the corner piece by the bending device 11 as described above.
The bending device 11 comprises a lower frame 12 and an upper frame 13 mounted vertically movably relative to the lower frame 12. The upper frame 13 is movable between a bending position of the metal sheet, in which it is deformed to form the corrugations 8, and a raised rest position. The upper frame 13 can thus exert a pressure on the corner piece 1 which enables the metal sheet to be bent and to form the corrugations 8. The upper frame 13 is shown in its rest position in fig. 7 and 10 to 13 and in its bent position in fig. 9 and 18 to 21. Here, the upper frame 13 is provided with a stopper pin 49 to be abutted against the lower frame 12 to define a stroke end of the upper frame 13. The limit pin 49 is shown aligned with the ridge 4, but may be in a different position. In figures 8 and 14 to 17 the upper frame 13 is also shown in an intermediate position in contact with the corner piece 1, i.e. the corrugations 8 will start to form.
As shown in fig. 10, for example, the lower frame 12 supports two lower mold elements 14, 15 which are located on either side of a transverse mid-plane. Each lower mould element 14, 15 has a pressing surface 17 which will receive the outer surface of the wings 2, 3 of the corner piece 1. The pressing surface 17 is inclined about the axis of a horizontal peak which coincides with the peak of the corner member 1 when the wings 2, 3 of the corner member 1 are received on the pressing surface 17. The inclination of the pressing surface 17 is oriented such that the inside of the corner piece 1 is directed upwards towards the upper frame 13 when the corner piece 1 is pressed against the lower mould elements 14, 15. The pressing surface is symmetrical with respect to the median vertical transverse plane.
Furthermore, as shown in fig. 11, the lower die elements 14, 15 comprise a groove 18 forming a cavity corresponding to the shape of the corrugation 8 to be formed at its ends 8a, 8 b. In the embodiment shown, the grooves 18 extend in the longitudinal direction and have a triangular cross-section, or in an embodiment not shown a semi-elliptical cross-section.
Returning to fig. 10, it can be seen that bending device 11 also comprises two upper counter-dies 19, 20, associated with and facing lower die elements 14, 15, respectively. The upper counter moulds 19, 20 each comprise a clamping surface 21 which is parallel to the pressing surface 17 of the associated lower mould element 14, 15. The clamping surfaces 21 are used to bring the wings 2, 3 of the corner piece 1 into face-to-face abutment against the abutment surfaces 17 of the lower die elements 14, 15 when the upper counter dies 19, 20 are in the bent position. Furthermore, the upper counter dies 19, 20 each comprise a punch 22 shown in fig. 11, which has a shape complementary to the shape of the groove 18 of the associated lower die element 14, 15.
The two upper counter moulds 19, 20 are each mounted on the associated lower mould element 14, 15 in such a way as to be movable in a direction orthogonal to the pressing surface 17 of said mould element 14, 15. The upper counter dies 19, 20 are thus movable between a raised rest position shown in figures 10, 11 and 12 and a bent position shown in figures 18, 19 and 20 in which their punches 22 are inserted face-to-face inside the grooves 18 of the lower die elements 14, 15 to press the sheet metal and form the ends 8a, 8b of the corrugations 8.
Each upper counter-mould 19, 20 is slidably mounted on its respective lower mould element 14, 15 by guide means comprising a plurality of guide tubes 23 integral with the lower mould element 14, 15, as shown in particular in figures 10 and 11. The upper counter-moulds 19, 20 comprise bores which each surround one of said guide tubes 23 to guide the movement of the upper counter-moulds 19, 20 relative to the associated lower mould element 14, 15. By way of example, in the embodiment shown, each lower mould element 14, 15 comprises four guide tubes 23, which are arranged near the four corners of the lower mould element 14, 15.
Furthermore, a compression spring 24 or a gas-driven cylinder is arranged between each lower mould element 14, 15 and the associated upper counter-mould 19, 20. The compression spring 24 comprises a first end arranged in a not shown blind hole provided in the lower mould element 14, 15 and a second end arranged in a not shown blind hole provided in the upper counter mould 19, 20, facing each other. The compression spring 24 or gas-driven cylinder thus exerts a return force on the upper counter mould 19, 20 which will return it towards its rest position.
As shown in fig. 10, each lower counter mould 19, 20 carries a pulley 25 which is rotatably mounted about a horizontal axis 26 extending in the transverse direction. The shafts 26 of the pulleys are carried by a pulley carriage 27 fixed on the lower counter-mould 19, 20 and comprising two lateral wings which support the shafts 26 of the pulleys and between which the pulleys 25 are arranged.
The pulley 25 is able to form a support for the upper frame 13 during its travel between its rest position, as shown in figures 14 and 16, and its bent position. Thus, during the stroke of the upper frame between its rest position and its bending position, the upper frame 13 will press against the pulley 25 to move the upper counter-moulds 19, 20 from their rest position to their bending position. Thus, the presence of the pulley 25 makes it possible to limit the friction force exerted between the upper frame 13 and the upper counter-moulds 19, 20 when the upper frame 13 is pressed against the upper counter-moulds 19, 20 to move them towards their bending position.
With reference also to fig. 12 and 13, it can be seen that the bending device 11 also comprises a lower punch 28 carried by the lower frame 12 and arranged between the two lower die elements 14, 15, and an upper die element 29 carried by the upper frame 13. The lower punch 28 and the upper die element 29 make it possible to form the corrugated central portion 8 c. To this end, as shown in fig. 13, the upper die element 29 has a cavity 30 corresponding to the shape of the corrugation 8 in its central portion 8c, and the lower punch 28 has a shape 31 complementary to the shape of the cavity 30 of the upper die element 29.
As shown in fig. 13, the upper die element 29 is mounted on the upper frame 13 vertically movably by means of guide means. The guide means comprises two vertical guide tubes 32 fixed to the upper frame 13 and the upper mould element 29 has a bore hole which surrounds the guide tubes 32 to guide movement of the upper mould element 29 relative to the upper frame 13. Furthermore, a restraining plate 33 having a larger diameter than the bore of the upper die element 29 is fixed to the lower end of the guide tube 32 and thus makes it possible to restrain the upper die element 29 on the upper frame 13.
Furthermore, the compression spring 34 exerts an elastic force between the upper frame 13 and the upper die element 29. To this end, the compression spring 34 comprises a first end seated in a blind hole provided in the upper frame 13 and a second end seated in a blind hole provided in the upper die element 29.
As shown in figure 10, the upper mould element 29 comprises wedge-shaped portions 35 on both sides of its cavity 30, which have a shape complementary to the shape of the corner piece 1. The wedge-shaped portion 35 has an angle substantially equal to the angle of the corner piece 1 and comprises two inclined surfaces 36, 37, one 36 of which will abut against the inner surface of one of the wings 2, 3 of the corner piece and the other of which will abut against the inner surface of the other wing 2, 3 when the upper frame 13 is moved towards its bent position. Thus, when the upper frame 13 is moved towards its bending position, the upper mould element 10 will abut the corner piece 1 at the lower surfaces of the ridges 4 and wings 2, 3 (see fig. 17 and 21).
A lower punch 28 is mounted on the lower frame 12 in a manner movable between a lowered rest position shown in fig. 10, 12, 13, 14, 16 and 17 and a raised bending position shown in fig. 18, 20 and 21.
In order to move the lower punch 28 to its raised bending position, the bending device is equipped with an actuating mechanism shown in fig. 12, 16 and 20, which is capable of moving the lower punch 28 upward to its raised bending position when the upper frame 13 is moved downward in the direction of its bending position.
The actuating mechanism comprises two levers 38, 39. The levers 38, 39 are hingedly mounted on the lower frame 12 about transverse horizontal pivot axes 40, 41.
The levers 38, 39 each comprise a first end 42 which passes through a hole provided in the lower mould element 14, 15 and opens into the channel 18 of said lower mould element 14, 15. Thus, the first end 42 of each lever 38, 39 will in operation engage in face-to-face engagement with the portion of the sheet metal which will be bent by the punch 22 of the upper counter-die 19, 20. Furthermore, the levers 38, 39 comprise a second end 43 intended to cooperate with the lower punch 28 to move it. The first end 42 of the lever carries a contact piece 44 which is mounted on the first end 42 of the lever by means of a ball joint on the one hand and comprises a flat pressure pad which is to be engaged with the corner piece 1 on the other hand. Such a design makes it possible to obtain a constant contact surface between the levers 38, 39 and the corner piece 1 during rotation of the levers 38, 39. In addition, the second ends 43 of the levers 38, 39 are inserted inside the cavity 45 of the lower punch 28. The cavity 45 includes an upper lip 46 such that when the levers 38, 39 are rotated they apply a force to the upper lip 46, thereby moving the lower punch 28 upwardly.
The levers 38, 39 are symmetrical to each other with respect to the transverse mid-plane. Thus, the levers 38, 39 rotate in a rotational direction opposite to the balance of the securing forces.
In operation, as the upper frame 13 moves from its raised rest position to its bent position, the upper frame 13 will pass through the intermediate contact position shown in fig. 14 until bending is to begin. In this position, the upper frame 13 bears against the upper counter-moulds 19, 20, which themselves are in contact with the wings 2, 3 of the corner piece 1. Furthermore, the wedge 35 of the upper mold element 29 holds the corner piece 1 against its corner.
Then, when the punch 22 of the upper counter-die 19, 20 is inserted inside the groove 18 of the lower die element 14, 15, the punch 22 exerts a force on the first end 42 of the lever 38, 39 which will rotate the lever, so that the second end 43 of the lever 38, 39 acts on the lower punch 28 to move it towards its raised bending position, in which it is inserted inside the cavity 30 of the upper die element 29. Thus, as the end portions 8a, 8b of the corrugation 8 are progressively formed by the upper counter dies 19, 20 pressing against the lower die elements 14, 15, the lower punch 28 moves to its raised bending position and embeds inside the cavity 30 of the upper die element 29, thereby forming the central portion 8c of the corrugation 8.
The geometry of the cavity 30 of the upper die element 29 and the geometry of the lower punch 28 are described below with reference to fig. 22 and 23.
The cavity 30 shown in fig. 22 has a substantially triangular or semi-elliptical cross-section. Furthermore, the cavity 30 has a slight convexity in section along the longitudinal plane, which makes it possible to form a wave transversely to the longitudinal direction of the corrugation 8 at the central portion 8c of the corrugation. Furthermore, the upper mould element 29 comprises sheet-like counter knives 47 on both sides of the cavity 30 in the longitudinal direction, which extend in the longitudinal direction and which are to be pressed against the wings 2, 3 of the corner piece 1. The counter knives 47 likewise have a downward directed convexity to form a wave-shaped portion at the central part 8c of the corrugation, transverse to the longitudinal direction of the corrugation 8.
The lower punch 28 shown in fig. 23 has a shape 31 that is complementary to the shape of the cavity 30 of the upper die element 29. Thus, the lower punch 28 has a substantially triangular or semi-elliptical cross-section in the central portion. Furthermore, the lower punch 28 has a slight convexity in a section along the longitudinal plane. The lower punch 28 comprises sheet-like knives 48 on both sides of its central part in the longitudinal direction, which are arranged facing the counter knives 47 and which will deform the corner piece at the end of its central part 8 c.
The bending method will be described in detail below.
First, a metal plate is pre-bent to form a corner piece 1 comprising two wings 2, 3 which are inclined relative to each other around a peak 4.
The corner piece 1 thus formed is then placed against the lower mould elements 14, 15. The projecting corners of the angled pieces are directed towards the upper frame 13 so that the outer surfaces of the wings 2, 3 rest against the abutment surfaces 17 of the lower mould elements 14, 15.
When the corner piece 1 has been correctly positioned, the upper frame 13 is moved downwardly from its rest position as shown in figures 7 and 10 to 13. During the movement of the upper frame towards its end-of-stroke position, the upper frame 13 is pressed against the upper counter-moulds 19, 20 (see fig. 14 and 16) so that the upper counter-moulds are moved towards their bending position and the wedge-shaped portions 35 of the upper mould elements 29 will abut against the lower surface of the corner piece 1 in the corner areas thereof (see fig. 14 and 17).
Then, when the upper frame 13 is lowered towards its end-of-stroke position, the punches 22 of the upper counter-dies 19, 20 are embedded inside the grooves 18 of the lower die elements 14, 15 to form the ends 8a, 8b of the corrugations 8 (see fig. 18, 19 and 21).
When the punch 22 is inserted inside the groove 18, the metal sheet exerts a force on the actuating levers 38, 39 of the lower punch 28, causing the latter to move towards its raised bending position and to be inserted inside the cavity 30 of the upper die element 29 to form the central portion 8c of the corrugation 8 (see fig. 20).
Although the bending apparatus and method have been described with respect to one particular embodiment, it will be apparent that they are in no way limiting. In particular, it is apparent that if the devices shown in figures 7 to 23 were used to form corrugations in angled sections having an angle of about 135 °, it could easily be changed for forming corrugations in angled sections having a completely different angle (in particular 90 °).
Referring to fig. 24, the cut-away tanks of a methane vessel 70 expose a generally prismatic sealed insulated tank 71 mounted in a double hull 72 of the vessel. The walls of the tank 71 include: a primary sealing barrier to be in contact with the GNLs contained in the tank; a secondary sealing barrier disposed between the primary sealing barrier and the double hull 72 of the vessel; and two insulating barriers disposed between the primary and secondary containment barriers and between the secondary containment barrier and the double shell 72, respectively.
As is known per se, the loading/unloading pipe 73 arranged on the upper deck of the vessel may be connected to the sea or to a port terminal by means of suitable connectors for transferring GNL cargo from or to the tank 71.
Figure 24 shows an example of a marine terminal comprising a loading and unloading station 75, a subsea conduit 76 and a surface installation 77. The loading and unloading station 75 is an offshore fixture that includes a movable arm 74 and a tower 78 that supports the movable arm 74. The movable arm 74 carries an insulated flexible tube bundle 79 that can be connected to the load/unload conduit 73. The adjustable direction movable arm 74 is adapted to all methane specifications. A not shown connecting conduit extends inside the tower 78. The loading and unloading station 75 allows methane 70 to be loaded from or unloaded to a surface installation 77. The surface installation comprises a liquefied gas storage tank 80 and a connecting conduit 81 to a loading or unloading station 75 via a submarine conduit 76. The underwater conduit 76 allows for long distance transfer of liquefied gas between the loading or unloading station 75 and the surface installation 77, for example 5km, which makes it possible to keep the methane vessel 70 off shore during loading and unloading operations.
In order to generate the pressure required for the transfer of liquefied gas, pumps installed in the vessel 70 and/or pumps equipped with surface units 77 and/or pumps equipped with loading and unloading stations 75 are used.
Although the invention has been described with reference to a number of specific embodiments, it is obvious that the invention is not at all limited thereto and that the invention includes all technical equivalents of the means described as well as combinations thereof if such combinations fall within the scope of the invention.
Use of the verb "comprise" or its conjugations does not exclude the presence of elements or steps other than those stated in a claim. The use of the verb "a" or "an" for an element or step does not exclude the presence of a plurality of such elements or steps, unless stated to the contrary.
In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.

Claims (7)

1. Corner piece (1) for constructing a sealing membrane of a fluid storage tank, the corner piece (1) having a geometrical configuration which is expandable in plan to a rectangular piece shape and comprising first and second planar wings (2, 3) inclined with respect to each other and meeting at a peak (4),
said corner piece (1) comprising a corrugation (8) extending in a longitudinal direction intersecting the peak (4) from one end of the corner piece (1) to the other, thereby allowing the corner piece to be deformed in a transverse direction parallel to the peak (4); the corrugations (8) comprise:
-a first end (8a) on the first wing (2) extending perpendicularly to the peak (4) from the first edge (7) of the angled piece (1) in the direction of the peak (1); said first end (8a) having a semi-elliptical or triangular cross-section with constant depth;
-a second end portion (8b) on the second wing (3) extending perpendicularly to the peak (4) from a second edge (7) of the corner piece (1) opposite to the first edge (7) in the direction of the peak (4); said second end (8b) having a semi-elliptical or triangular cross-section with constant depth;
-a central portion (8c) overlapping the peak (4) and extending between the first and second end portions (8b, 8c) on an extension of said first and second end portions (8a, 8 b);
the first and second end portions (8a, 8c) of the corrugations (8) project outside of the projecting angle formed between the two wings of the angled member (1) and the central portion (8a) projects inside the projecting angle formed between the two wings of the angled member (1),
said angled part being characterized in that the central portion (8c) of the corrugation (8) has a triangular or semi-elliptical cross-section, the height of which in the longitudinal direction of the corrugation (8) increases from each end of the central portion (8c) towards an intermediate cross-section of the central portion (8c) which lies in the plane of the bisector of the angle formed between the first and second wings (2, 3), and
the central part (8c) of the corrugation (8) is partially bordered by corrugations (9a, 9b) projecting outside the projecting angle formed between the two wings of the angled piece (1), which are located on both sides of the central part (8c) and whose depth decreases in the direction of the crest (4).
2. A corner piece (1) according to claim 1 wherein the central part (8c) of the corrugations (8) has a middle cross-section with a height equal to the depth of the ends (8a, 8b) of the corrugations (8).
3. A thermally insulated sealed tank for storing a fluid, comprising a secondary thermal barrier constrained to a support structure, a secondary sealing membrane supported by the secondary thermal barrier, a primary thermal barrier, and a primary sealing membrane supported by the primary thermal barrier and intended to be in contact with the fluid contained in the tank, wherein:
the secondary thermal barrier comprises cuboid-shaped insulating blocks juxtaposed in parallel rows and columns and separated from each other by gaps;
the secondary sealing membrane comprises a plurality of metal plates comprising at least two orthogonal corrugations parallel to the edges of the thermoblocks and inserted in the gaps provided between the thermoblocks or in the slits provided in the thermoblocks, and a plurality of corner pieces (1) according to claim 1 or 2 joining the metal plates of the first and second walls at the corners formed between adjacent first and second walls.
4. A thermally insulated sealable tank for storing a fluid, comprising a primary sealing membrane comprising a plurality of corrugated metal sheets welded to each other, each metal sheet comprising at least two orthogonal corrugations protruding on the side of the metal sheet that will be in contact with the fluid contained in the tank, and a plurality of corner pieces (1) according to claim 1 or 2 joining the metal sheets of the primary sealing membrane.
5. A vessel (70) for transporting fluids, comprising a double hull (72) and a tank (71) according to claim 4, wherein the double hull forms an outer support structure of the tank.
6. A method of loading or unloading a vessel (70) according to claim 5, wherein the fluid is led from the land or floating storage (77) to the vessel's tanks (71) or from the vessel's tanks (71) to the land or floating storage (77) through insulated pipes (73, 79, 76, 81).
7. A transfer system for fluids, the system comprising a vessel (70) according to claim 5, an isolation pipe (73, 79, 76, 81) designed to connect a tank (71) mounted in the vessel hull to a land or floating storage means (77), and a pump for leading fluids from the land or floating storage means to the vessel tank or from the vessel tank to the land or floating storage means through the isolation pipe.
CN201580059487.3A 2014-09-01 2015-08-25 Corner piece for constructing sealing membrane of fluid reservoir Active CN107076360B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1458164 2014-09-01
FR1458164A FR3025122B1 (en) 2014-09-01 2014-09-01 ANGLE PIECE AND FOLDING DEVICE AND METHOD FOR FORMING CORRUGATION IN AN ANGLE PIECE
PCT/FR2015/052264 WO2016034792A1 (en) 2014-09-01 2015-08-25 Corner piece intended for the construction of a sealing membrane of a fluid storage tank

Publications (2)

Publication Number Publication Date
CN107076360A CN107076360A (en) 2017-08-18
CN107076360B true CN107076360B (en) 2019-12-24

Family

ID=51842560

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201580059487.3A Active CN107076360B (en) 2014-09-01 2015-08-25 Corner piece for constructing sealing membrane of fluid reservoir

Country Status (3)

Country Link
CN (1) CN107076360B (en)
FR (1) FR3025122B1 (en)
WO (2) WO2016034792A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3057185B1 (en) * 2016-10-06 2018-11-16 Gaztransport Et Technigaz FOLDING MACHINE FOR FORMING A CORRUGATION IN A METAL SHEET
FR3084438B1 (en) * 2018-07-26 2020-07-31 Gaztransport Et Technigaz WATERPROOF AND THERMALLY INSULATED TANK
CN109226492B (en) * 2018-10-17 2024-04-05 长华控股集团股份有限公司 High-efficient stamping workpiece strengthening rib turns over a device
CN109482725A (en) * 2018-11-30 2019-03-19 宁波凯荣船用机械有限公司 Film-type liquefied natural gas cargo tank maintenance system stainless steel corrugated plate production line and manufacture craft
FR3095356B1 (en) * 2019-04-29 2022-06-03 Gaztransport Et Technigaz Corrugated corner piece intended for the construction of a waterproofing membrane for a tank and folding system for the formation of a corrugation in a corner piece
FR3095355B1 (en) * 2019-04-29 2021-10-29 Gaztransport Et Technigaz Folding system to form a corrugation in a room and method of using the device
FR3097934B1 (en) * 2019-06-28 2022-01-28 Gaztransport Et Technigaz Method of manufacturing a corner structure for a tank
CN116123436B (en) * 2023-01-16 2024-02-09 宇欧围护技术(上海)有限公司 Double-arch straight cornea and double-arch multi-slope peak right angle metal extension film
CN117803849A (en) * 2024-03-01 2024-04-02 中太(苏州)氢能源科技有限公司 Corrugated plate for corner regions with bulges and storage container

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3325953A (en) * 1963-08-16 1967-06-20 Technigaz Folded corrugated sheet-like corner piece
WO2014057221A2 (en) * 2012-10-09 2014-04-17 Gaztransport Et Technigaz Fluidtight and thermally insulated tank comprising a metal membrane that is corrugated in orthogonal folds

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1554714A (en) * 1967-10-12 1969-01-24
FR1601215A (en) * 1968-12-31 1970-08-10
FR2691520B1 (en) 1992-05-20 1994-09-02 Technigaz Ste Nle Prefabricated structure for forming watertight and thermally insulating walls for containment of a fluid at very low temperature.
FR2861060B1 (en) * 2003-10-16 2006-01-06 Gaz Transport & Technigaz WATERPROOF STRUCTURE AND TANK PROVIDED WITH SUCH A STRUCTURE
KR100766309B1 (en) * 2007-04-30 2007-10-12 (주)삼우멤코 Forming machine of membrane for lng storage tank coupled connected with support bar
FR2984454B1 (en) 2011-12-20 2015-04-03 Gaztransp Et Technigaz TANK WALL COMPRISING A CONDUIT
FR2987099B1 (en) * 2012-02-20 2015-04-17 Gaztransp Et Technigaz SEALED AND THERMALLY INSULATING TANK WITH ANGLE PIECE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3325953A (en) * 1963-08-16 1967-06-20 Technigaz Folded corrugated sheet-like corner piece
WO2014057221A2 (en) * 2012-10-09 2014-04-17 Gaztransport Et Technigaz Fluidtight and thermally insulated tank comprising a metal membrane that is corrugated in orthogonal folds

Also Published As

Publication number Publication date
WO2016034792A1 (en) 2016-03-10
WO2016034791A1 (en) 2016-03-10
FR3025122A1 (en) 2016-03-04
CN107076360A (en) 2017-08-18
FR3025122B1 (en) 2017-03-31

Similar Documents

Publication Publication Date Title
CN107076360B (en) Corner piece for constructing sealing membrane of fluid reservoir
RU2588920C2 (en) Sealed and heat insulated cargo tank, integrated into bearing structure
RU2641186C2 (en) Airtight and isothermal tank containing metal membrane with corrugated orthogonal folds
AU2015323629B2 (en) Sealed and insulating vessel comprising a bridging element between the panels of the secondary insulation barrier
US10876687B2 (en) Sealed and thermally insulating wall for a tank for storing fluid
KR102178151B1 (en) Sealed and insulating tank having a sealing barrier capable locally of sliding relative to the insulating barrier
KR20150141977A (en) Sealed and thermally insulating tank for storing a fluid
PH12014502705B1 (en) Fluidtight and thermally insulating tank
CN105283704A (en) Uncoupling of the corrugations of an impervious barrier
CN109630879B (en) Method for installing an anchoring device for a sealed and insulated tank
CN111971236B (en) Closure wall with reinforced corrugated membrane
KR20140047679A (en) Thermally-insulating sealed tank
KR20190040208A (en) Impermeable wall structure
CN112534176B (en) Tank wall comprising a sealing membrane having corrugations with reinforced curved portions
CN114945770A (en) Storage facility for liquefied gases
CN113924437B (en) Corrugated corner piece for constructing a sealing film of a can and folding system for forming corrugations in a corner piece
CN112368506B (en) Liquid-tight container provided with corrugated engagement elements
CN111630311A (en) Sealed heat insulation tank
RU2767850C2 (en) Sealing membrane and method for assembly of sealing membrane
RU2813235C2 (en) Corrugated corner part designed for production of sealing membrane for tank, and bending system for forming corrugation in corner part
CN113924175B (en) Bending system for forming corrugations in a component and method of using the same
RU2812036C2 (en) Bending system for forming corruptions in part and method of using device
CN111108322A (en) Sealed heat insulation box
RU2780113C2 (en) Sealed tank wall containing sealing membrane
CN113426885A (en) System for connecting a plurality of wave reinforcements of a corrugated membrane of a sealed, insulated storage tank

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP02 Change in the address of a patent holder
CP02 Change in the address of a patent holder

Address after: The French Saint Remy - Leszek J Les

Patentee after: GAZTRANSPORT ET TECHNIGAZ

Address before: Fa Guofanersai

Patentee before: GAZTRANSPORT ET TECHNIGAZ