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EP2740987B1 - Cuve étanche et isolante comportant un pied de support - Google Patents

Cuve étanche et isolante comportant un pied de support Download PDF

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Publication number
EP2740987B1
EP2740987B1 EP14157675.1A EP14157675A EP2740987B1 EP 2740987 B1 EP2740987 B1 EP 2740987B1 EP 14157675 A EP14157675 A EP 14157675A EP 2740987 B1 EP2740987 B1 EP 2740987B1
Authority
EP
European Patent Office
Prior art keywords
corrugations
pedestal
series
window
tank
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
EP14157675.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2740987A3 (fr
EP2740987A2 (fr
Inventor
Julien Sigaudes
Saïd LAHRACH
Johan Bougault
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 EP2740987A2 publication Critical patent/EP2740987A2/fr
Publication of EP2740987A3 publication Critical patent/EP2740987A3/fr
Application granted granted Critical
Publication of EP2740987B1 publication Critical patent/EP2740987B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/025—Bulk storage in barges or on ships
    • F17C3/027—Wallpanels for so-called membrane tanks
    • 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
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • 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
    • 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
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/018—Supporting feet
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • 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

Definitions

  • the invention relates to the field of the construction of a sealed and insulating tank arranged in a supporting structure, in particular to the construction of a wall of such a tank to accommodate a support foot.
  • Sealed and thermally insulating tanks can be used in different industries to store hot or cold products.
  • liquefied natural gas is a liquid which can be stored at atmospheric pressure at approximately - 163 ° C in terrestrial storage tanks or in tanks on board floating structures.
  • floating structures are in particular LNG carriers for the transport of the product and off-shore installations, known in particular by the acronyms FPSO and FSRU, for the storage, liquefaction or regasification of the product.
  • a layer of corrugated metal sheet is used to make a watertight barrier which also has sufficient elasticity to withstand forces resulting for example from hydrostatic pressure, dynamic pressure in the event of movement of the cargo, and / or temperature variations.
  • a tight barrier and the underlying thermal insulation material are relatively fragile and cannot necessarily support heavy equipment to be submerged at the bottom of the tank, for example a pump.
  • KR20080072387 discloses a sealed and insulating tank as defined in the preamble of claim 1.
  • the invention provides a sealed and insulating tank as defined in claim 1.
  • such a tank may have one or more of the following characteristics.
  • the support foot is centered at a position situated between the guiding lines (A) of the two parallel corrugations of the plurality of parallel corrugations.
  • the support foot can have various shapes, in particular depending on the characteristics of the equipment to be supported.
  • the support foot has at least one convex lateral side, and the guideline of said two corrugations between which the support foot is centered intersects the convex lateral side of the support foot.
  • the support foot has a circular section.
  • the window interrupts the guidelines of an even number of parallel corrugations of said at least one series, for example of two parallel corrugations of said at least one series.
  • the support foot is centered substantially in the middle of the guidelines of the two corrugations.
  • the support foot can be offset from the middle, so as to be closer to one corrugation than the other, for example if such a positioning makes it possible to reduce the length of interruption of the corrugations given the shape of the support leg.
  • said at least one series of parallel corrugations is distributed equidistantly.
  • the series of corrugations may have, at least locally, a less even distribution.
  • the corrugations project from the side of an internal face of the sealing barrier intended to be in contact with a fluid.
  • the connecting pieces comprise a plurality of end pieces arranged at a distance from the support foot so as to close the interrupted ends of the two corrugations between the guidelines of which the support foot is centered.
  • end pieces it is possible to close all the corrugations, the window of which interrupts the guidelines, so as to re-establish the continuity of the watertight barrier.
  • the support foot comprises a hollow casing of generally tubular shape, the longitudinal axis of which is substantially perpendicular to the tank wall and a transverse closing wall closing the casing in a leaktight manner. to achieve the continuity of the sealing barrier at the level of the support foot.
  • a hollow shape may in particular be preferred in order to limit the effective section of the support foot capable of creating a thermal bridge.
  • the connecting pieces intended to connect the support foot in a sealed manner to a marginal portion of the layer of corrugated metal sheet can have many shapes.
  • the connecting pieces comprise an annular plate connected to a peripheral wall of the support foot at the level of the corrugated metal sheet layer.
  • a plate can be pre-assembled to the support leg.
  • the connecting pieces comprise an intermediate plate having a first edge welded to the annular plate and a second edge welded to the marginal portion of the corrugated metal sheet layer delimiting the window.
  • the thermal insulation barrier comprises a primary thermal insulation barrier arranged on the side of the sealing barrier, called the primary sealing barrier, and a secondary thermal insulation barrier arranged on the side of the supporting structure, the vessel wall comprising a secondary sealing barrier arranged between the primary and secondary thermal insulation barriers, the secondary sealing barrier being connected in a sealed manner to a peripheral wall of the support foot.
  • the connecting parts comprise: a link plate having a corrugation parallel to said at least one series of parallel corrugations and disposed on a line offset laterally at a distance from the support foot with respect to one of the corrugation guidelines interrupted by the window and deflection pieces arranged so as to connect each time one end of the corrugation of the connecting plate to an end portion of the corrugation whose direct line is interrupted by the window, so that the corrugation of the connecting plate and the two deflection pieces extend the corrugation, the guideline of which is interrupted in a sealed manner through the window by following the line offset laterally at a distance from the support foot.
  • corrugations offset makes it possible to limit the number of corrugations made discontinuous by the support foot, and therefore to further preserve the elasticity of the waterproof barrier, in particular in the case where a support foot of relatively large diameter must be put in place.
  • the corrugated metal sheet layer has a first series of parallel corrugations and a second series of parallel corrugations which intersects the first series of parallel corrugations at the level of crossings, the window interrupting the lines. guiding a first plurality of the parallel corrugations of the first series and / or the guiding lines of a second plurality of the parallel corrugations of the second series, the support foot being centered at a position between the guiding lines of two parallel corrugations of the first plurality and / or between the guidelines of two parallel corrugations of the second plurality.
  • the first series of parallel corrugations is perpendicular to the second series of parallel corrugations.
  • the elasticity of the waterproof membrane can be well balanced in different directions.
  • the aforementioned window can have different shapes, in particular depending on the shape of the support foot and / or the shape of the constituent elements of the corrugated metal sheet layer.
  • the window is a quadrilateral, for example rectangle or square or parallelogram, comprising two sides parallel to the first series of corrugations and two sides parallel to the second series of corrugations.
  • the support foot is arranged at the base of a mast for unloading the tank, for example to support a pump.
  • An idea at the basis of the invention is to support equipment to be immersed in a tank on a foot bearing directly or indirectly on the supporting structure, to avoid or limit a force exerted on a relatively fragile corrugated waterproofing membrane.
  • Another idea at the basis of the invention is to have such a support foot in a way which does not jeopardize the essential mechanical properties of the corrugated waterproofing membrane, in particular its tightness and its resistance to thermal contraction. or to pressure efforts.
  • Certain aspects of the invention are based on the idea of interrupting undulations of a corrugated waterproofing membrane at the level of a passage zone of a support foot, and of positioning this support foot at a location which makes it possible to limit the length of these interruptions, in order to limit the loss of elasticity of the membrane which may result from such interruptions.
  • Other aspects of the invention start from the idea of locally displacing corrugations in order to bypass the zone of passage of the support foot without interrupting these undulations.
  • a sealed and thermally insulating tank 1 consisting of tank walls 2 and 3 fixed to the inner surface of corresponding walls 4 and 5 of a supporting structure.
  • the supporting structure is for example the inner hull of a double-hull ship or a construction located on land.
  • the walls of the tank include at least one sealing barrier 6 and at least one thermal insulation barrier 7.
  • a secondary sealing barrier it is possible to provide a secondary sealing barrier. , not shown, between the supporting structure and the sealing barrier 6, which is called primary in this case.
  • the tank 1 can be produced according to various well-known geometries, for example a prismatic geometry in the hull of a ship or a cylindrical geometry on land or the like. Furthermore, many methods are available for producing thermal insulation and sealing barriers, for example from prefabricated elements.
  • an elongated rigid element constituting a support foot 10, which extends through the thermal insulation barrier 7 and the sealing barrier 6, so that one end rests against the bottom wall 5 of the supporting structure and the other end projects into the tank at a distance from the sealing barrier 6.
  • the support foot 10 can for example be used to support equipment 9 in front of be submerged in the tank.
  • the support foot can be placed at the base of a pump mast of the tank, not shown.
  • a similar rigid element can be arranged in the same way at other locations in the tank, for example as a support or spacer element to hold any object at a distance from the tank wall.
  • the sealing barrier 6 consists of a plurality of corrugated sealed plates 11, the so-called internal face of which is intended to be in contact with the fluid.
  • the waterproof plates 11 are thin elements made of metal such as stainless steel or aluminum sheet and are welded together at the level of marginal overlap areas 12.
  • the welds are of the overlap weld type, the process of which is described. in detail for example in the patent FR-A-1387955 .
  • the sealing plates 11 can be designed in various ways as to their shapes and dimensions, so that the weld areas can be variously positioned.
  • the sealed plates 11 comprise, on their internal face, a first series of so-called longitudinal corrugations 15 and a second series of so-called transverse corrugations 16, the respective directions of which are perpendicular.
  • the first series of corrugations 15 has a height less than the second series of corrugations 16.
  • the corrugations 15 are discontinuous at their crossings 18 with the corrugations 16 which are. continues.
  • the longitudinal 15 and transverse 16 corrugations project towards the interior of the tank 1.
  • the support foot 10 has here a shape of revolution with a circular section, with a frustoconical lower part 13 which connects at its end of smaller diameter 17 to a cylindrical upper part 14.
  • the base of larger diameter of the part frustoconical 13 bears against the wall 5 of the supporting structure.
  • the frustoconical part 13 extends through the thickness of the vessel wall beyond the level of the sealing barrier 6.
  • the cylindrical part 14 is closed in a sealed manner by a circular plate 19, which may for example be welded to an inner rim, not shown, of the cylindrical part 14.
  • the corrugated waterproof plates 11 forming the waterproofing barrier 6 are cut so as to delimit a square window 25 around the support foot 10.
  • a sealed assembly of connecting pieces is produced between the support foot 10 and the waterproof plates 11.
  • the diameter of the support foot 10 is greater than the spacing between the corrugations of the first series 15 , some of the longitudinal corrugations indicated in numeral 20 and whose direct line A intersects the support foot 10 have been interrupted at the level of the window 25.
  • the diameter of the support foot 10 is greater than the spacing between the supports.
  • corrugations of the second series 16 some of the transverse corrugations indicated in numeral 21 and of which the guideline B intersects the support foot 10 have been interrupted at the level of the window surrounding the pi support ed.
  • the size of the window 25 is in practice larger than the diameter of the support foot 10, so that the fitting of the connecting pieces is relatively easy.
  • the window 25 formed in the layer of corrugated sheet would be capable of similarly interrupting undulations, the guideline of which, without actually cutting the support foot, would be located too close to the support foot to allow the installation. connecting pieces between them and the support foot.
  • the center C of the support foot 10 is positioned between the guidelines A of the interrupted undulations 20 and between the guidelines B of the interrupted undulations 21, and more precisely in the middle of these guidelines on the figure 3 .
  • the result of this positioning is that the directing line A or B each time cuts the support foot 10 along a chord shorter than the diameter of the support foot 10.
  • this positioning of the support foot makes it possible to interrupt each of the corrugations 20 and 21 over a shorter distance than in the case where the guideline A or B would cut the support foot according to its most large transverse dimension, that is to say its diameter in the case of a circular section. It is advantageous to interrupt the corrugations of the sealing barrier over the shortest possible distance, given that these interruptions are liable to locally reduce the flexibility of the sealing barrier and therefore locally promote its fatigue and wear. .
  • the centering of the support foot halfway between the interrupted corrugations 20 and halfway between the interrupted corrugations 21 offers an optimal result.
  • a principle that can be used to adapt the positioning of the support foot between the corrugations each time is to choose a position which minimizes, or at least decreases, the transverse dimension of the support foot cut by the guideline of the interrupted corrugation.
  • a relevant optimization parameter to adapt the positioning of the support foot may be the length of the longest interrupt or the cumulative length of the interrupts obtained.
  • the window 25 has a square shape which facilitates the cutting of the waterproof plates 11 to the desired shape.
  • other forms of windows can also be implemented, depending in particular on the geometry of the support foot.
  • the figure 4 is a half-sectional view of the support foot 10 and an area of the substantially square vessel wall around it at an intermediate stage of assembly. The right part is shown before the installation of the elements of the secondary sealing barrier and of the primary insulation barrier, the left part after the installation of these elements.
  • the support foot 10 comprises a secondary plate 23 of square shape fixed around the frustoconical part 13 to a height corresponding to the upper surface of the secondary thermal insulation barrier 22 and of the secondary waterproof barrier which is very thin.
  • the support foot 10 comprises a primary plate 24 of round shape fixed around the frustoconical part 13 at a height corresponding to the upper surface of the primary thermal insulation barrier 26.
  • the plates 23 and 24 can be made in one piece with the support foot 10.
  • the secondary insulation barrier 22 has a glass wool stuffing 27 which also has a square outer contour.
  • the primary insulation barrier 26 has a glass wool stuffing 28 which also has a circular outer contour.
  • a panel 30 has an overall shape of L-shaped steps with a lower L-shaped insulating block 31 constituting an element of the secondary insulation barrier 22, a flexible waterproof covering 32 completely covering the upper surface in L-shaped block 31, and a smaller L-shaped upper insulating block 33 constituting an element of the primary insulation barrier 26.
  • the upper block 33 is aligned with the outer sides of the lower block 31, so as to leaving uncovered an area of the waterproof covering 32 located on an inner rim and on end rims of the lower block 31.
  • the panel 30 may be prefabricated by gluing with materials similar to those taught in the application.
  • FR-A-2781557 including polyurethane foam and plywood for the insulation barriers and a composite material of aluminum foil and fiberglass for the secondary waterproofing barrier.
  • the four corner panels 30 border on their inner sides the contour of the stuffing 27 and of the plate 23.
  • the dimensions of the blocks 31 are designed to leave spaces between them in the form of four radial chimneys 34 located each time between the faces. end of two neighboring lower blocks 31.
  • each of the chimneys 34 is stuffed with a sheet of fiberglass 35.
  • the porosity of the fiberglass of the sheets 35 and of the stuffing 27 makes it possible to circulate gas through it. through the primary insulation barrier 22, in particular for inerting the tank wall with nitrogen.
  • the figure 6 shows the construction of the secondary sealing barrier in the area of the support foot 10 in top view.
  • four strips 36 of the waterproof composite material of aluminum foil and fiberglass are glued on the secondary plate 27 and on the waterproof coating 32 of the panels 30.
  • a strip 36 is positioned at each time so as to overlap one side of the secondary plate 27 and the inner edges uncovered of two lower blocks 31.
  • the bands 36 overlap at the level of end zones 37.
  • four strips 38 of waterproof composite material made of aluminum foil and fiberglass are glued to the waterproof covering 32 of the panels 30, each time so as to overlap the end edges of two lower blocks 31.
  • the figure 7 represents the same area of the tank wall after installation of the primary insulation barrier. This is completed between the upper insulating blocks 33 and the support foot 10 by means of four corner blocks 40 and four middle blocks 41, the inner side of which each time matches the rounded contour of the primary plate 24 and of the jam 28. These blocks 40 and 41 are also represented on the left part of the figure 4 .
  • the upper surface of the median blocks 41 has in each case a rebate 44 delimited by a recess 43.
  • the rebates 44 are precisely at the level of the primary plate 24 to provide a flat support surface for metal closure plates 45 intended to achieve the primary sealing barrier around the support leg 10.
  • two closure plates 45 are arranged around the primary plate 24 and sealed to the latter over its entire periphery.
  • the plates 45 are cut in a semicircle at their inner edge 46, while their outer edge 47 defines a square with a dimension slightly greater than the window 25 formed in the corrugated waterproof plates 11.
  • the two closure plates 45 overlap at areas 48 where they are welded together.
  • the closure plates 45 are fixed to the blocks 40 and 41 of the primary insulation barrier by means of wood screws or rivets 49 arranged near their outer edge 47 in order to firmly press the closure plates 45 against these blocks, in particular because it is necessary to avoid that they do not rise while they are welded on the primary plate 24.
  • the primary sealing barrier 6 in the area of the support foot 10 is completed, on the one hand by welding the edges of the sealing plates 11 delimiting the window 25 on the closure plates 45, and on the other hand by sealingly closing the ends of the interrupted corrugations 20 and 21 with end pieces 50.
  • the sealing plates 11 are cut so as to cover the edge of the closure plates 45 comprising the screws 49.
  • FIG 8 An exemplary embodiment of an end piece 50 is shown in figure 8 .
  • the end piece 50 comprises a sole in two parts 51 and 52 intended to be welded in a sealed manner respectively on the closure plate 45 and on the waterproof plate 11, and a shell 54 intended to be welded in a sealed manner at the end. of the corrugation 20 or 21.
  • a recess 53 between the parts 51 and 52 of the sole has an amplitude substantially equal to the thickness of the waterproof plate 11.
  • the cutting of the insulating blocks and other prefabricated elements shown on the figures 2 , 4 , 6 and 7 to constitute the secondary insulation barrier, the secondary sealing barrier and the primary insulation barrier is purely illustrative. Similar elements can be cut and prefabricated in other shapes so that the mounting of the tank wall involves a higher or lower number of elementary parts.
  • the four L-shaped corner panels 30 are replaced by two U-shaped panels or a single panel having the shape of a square frame.
  • the support foot considered above requires a window of size approximately equal to twice the spacing 55 between two corrugations 15 or 16, which are equidistant here.
  • two waves of each series were interrupted.
  • this arrangement of the support foot and of the tank wall in its vicinity can be adapted to other dimensions of the support foot.
  • the corresponding window may interrupt a greater number of corrugations in one or each series, for example three or four or more corrugations.
  • the elements identical or similar to those of the figure 3 bear the same reference number increased by 100.
  • the transverse dimension of the support foot 110 being greater, for example greater than or equal to approximately three times the spacing 155 between the corrugations 115 or 116, the window 125 formed in the metal membrane corrugated for the passage of the foot 110 interrupts in this case the guidelines of four respective corrugations in each series.
  • this embodiment provides for interrupting two corrugations 120, respectively 121, of each series as in the previous embodiment, while the other two corrugations 158, respectively 159 of each series are locally offset at a distance from the support foot 110 with respect to their original guideline, but not are ultimately not interrupted.
  • the sealing barrier 106 is modified at the level of two concentric square windows 125 and 160. Outside the window 160, the sealing barrier 106 consists of sealed plates 111 carrying longitudinal 115 and transverse corrugations. 116 distributed equidistantly. Between window 160 and window 125, sealing barrier 106 is continued with other corrugated sealing plates, i.e. two generally C-shaped plates 161 in the present case, which carry distributed corrugations. differently, that is to say less spaced in this case.
  • the corrugations of the plates 161 in particular constitute a central segment 162, respectively 163, offset at a distance from the support foot 110, for each of the corrugations 158, respectively 159.
  • the structure of the sealing barrier 106 at the level of the window 125 and inside thereof is similar to the embodiment of the figure 3 .
  • offset pieces 170 are used.
  • the offset part 170 comprises a flange in two parts 171 and 172 intended to be welded in a sealed manner respectively to a plate 111 or 161 of the sealing barrier 106 and to an adjacent offset part 170, and an angled corrugation 174 of which the guideline forms a chosen angle, for example 135 °.
  • the bent corrugation 174 is intended to be connected in a sealed manner to the adjacent end of the corrugation 158 or 159 and to the bent corrugation of the adjacent deflection part.
  • a step 173 between the parts 171 and 172 of the sole has an amplitude substantially equal to the thickness of the sheet used to make the waterproof plates 111 or 161 or the offset pieces 170. Preferably, a sheet of the same thickness is used. for these different parts.
  • all the corrugations of which the window interrupts the guideline are extended through the window in an offset path, similar to the undulations 158 and 159 of the figure 9 .
  • the flexibility of the membrane can be improved since no ripple is ultimately interrupted by an end piece at the support leg.
  • the primary sealing barrier is made of sheet metal comprising two series of mutually perpendicular corrugations.
  • other types of corrugated metal membranes with less or more corrugations and / or a different arrangement of the corrugations can be similarly employed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Thermal Insulation (AREA)
  • Packages (AREA)
  • Building Environments (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
EP14157675.1A 2010-06-17 2011-05-24 Cuve étanche et isolante comportant un pied de support Active EP2740987B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1054822A FR2961580B1 (fr) 2010-06-17 2010-06-17 Cuve etanche et isolante comportant un pied de support
EP11727255.9A EP2583021B1 (fr) 2010-06-17 2011-05-24 Cuve etanche et isolante comportant un pied de support
PCT/FR2011/051168 WO2011157915A1 (fr) 2010-06-17 2011-05-24 Cuve etanche et isolante comportant un pied de support

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP11727255.9A Division-Into EP2583021B1 (fr) 2010-06-17 2011-05-24 Cuve etanche et isolante comportant un pied de support
EP11727255.9A Division EP2583021B1 (fr) 2010-06-17 2011-05-24 Cuve etanche et isolante comportant un pied de support

Publications (3)

Publication Number Publication Date
EP2740987A2 EP2740987A2 (fr) 2014-06-11
EP2740987A3 EP2740987A3 (fr) 2018-03-21
EP2740987B1 true EP2740987B1 (fr) 2021-03-24

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JP (2) JP5530030B2 (ja)
KR (2) KR101512963B1 (ja)
CN (2) CN102933888B (ja)
AU (1) AU2011266930B2 (ja)
BR (2) BR122014005768A2 (ja)
ES (2) ES2509715T3 (ja)
FR (1) FR2961580B1 (ja)
MY (1) MY182133A (ja)
RU (2) RU2526473C1 (ja)
SG (2) SG10201400698TA (ja)
TW (2) TWI505979B (ja)
WO (1) WO2011157915A1 (ja)

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FR3039248B1 (fr) * 2015-07-24 2017-08-18 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante munie d'une piece de renfort
FR3050009B1 (fr) * 2016-04-07 2018-04-27 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante
FR3069903B1 (fr) * 2017-08-07 2019-08-30 Gaztransport Et Technigaz Cuve etanche et themiquement isolante
FR3078135B1 (fr) * 2018-02-20 2021-01-15 Gaztransport Et Technigaz Installation de stockage et de transport d'un fluide cryogenique embarquee sur un navire
FR3080832B1 (fr) 2018-05-02 2020-10-30 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante equipee d'une tour de chargement/dechargement
FR3081041B1 (fr) 2018-05-11 2021-03-19 Gaztransport Et Technigaz Procede d'assemblage d'une cuve etanche et thermiquement isolante
FR3082916B1 (fr) 2018-06-25 2020-06-19 Gaztransport Et Technigaz Procede d'assemblage d'un dome liquide
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Also Published As

Publication number Publication date
KR20130081276A (ko) 2013-07-16
EP2583021B1 (fr) 2014-07-30
KR101512963B1 (ko) 2015-04-17
JP2014141308A (ja) 2014-08-07
WO2011157915A1 (fr) 2011-12-22
JP5530030B2 (ja) 2014-06-25
MY182133A (en) 2021-01-18
TW201427879A (zh) 2014-07-16
CN102933888A (zh) 2013-02-13
AU2011266930B2 (en) 2015-01-29
SG10201400698TA (en) 2014-05-29
RU2014112235A (ru) 2015-10-10
RU2662265C2 (ru) 2018-07-25
FR2961580B1 (fr) 2012-07-13
JP5746778B2 (ja) 2015-07-08
CN103899912A (zh) 2014-07-02
KR101722377B1 (ko) 2017-04-05
EP2583021A1 (fr) 2013-04-24
CN102933888B (zh) 2014-10-08
KR20140046490A (ko) 2014-04-18
SG185001A1 (en) 2012-11-29
JP2013528541A (ja) 2013-07-11
EP2740987A3 (fr) 2018-03-21
BR112012032016A2 (pt) 2016-11-08
TW201206793A (en) 2012-02-16
FR2961580A1 (fr) 2011-12-23
AU2011266930A1 (en) 2013-01-10
ES2509715T3 (es) 2014-10-17
CN103899912B (zh) 2016-03-16
ES2874476T3 (es) 2021-11-05
BR122014005768A2 (pt) 2019-08-13
BR112012032016B1 (pt) 2020-07-21
EP2740987A2 (fr) 2014-06-11
TWI510419B (zh) 2015-12-01
TWI505979B (zh) 2015-11-01
RU2012154217A (ru) 2014-07-27
RU2526473C1 (ru) 2014-08-20

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