EP3665414B1 - Abgedichteter und wärmeisolierender tank - Google Patents

Abgedichteter und wärmeisolierender tank Download PDF

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Publication number
EP3665414B1
EP3665414B1 EP18762375.6A EP18762375A EP3665414B1 EP 3665414 B1 EP3665414 B1 EP 3665414B1 EP 18762375 A EP18762375 A EP 18762375A EP 3665414 B1 EP3665414 B1 EP 3665414B1
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EP
European Patent Office
Prior art keywords
tank
corrugations
wall
corrugation
ridge
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.)
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Application number
EP18762375.6A
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English (en)
French (fr)
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EP3665414A1 (de
Inventor
Marc BOYEAU
Mickaël HERRY
Antoine PHILIPPE
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
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Gaztransport et Technigaz SA
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Publication of EP3665414A1 publication Critical patent/EP3665414A1/de
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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
    • 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
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/011—Improving strength
    • 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 sealed and thermally insulating tanks with membranes, for the storage and / or transport of fluid, such as a cryogenic fluid.
  • Sealed and thermally insulating membrane tanks are used in particular for the storage of liquefied natural gas (LNG), which is stored, at atmospheric pressure, at approximately -162 ° C. These tanks can be installed on land or on a floating structure. In the case of a floating structure, the vessel may be intended for the transport of liquefied natural gas or to receive liquefied natural gas serving as fuel for the propulsion of the floating structure.
  • LNG liquefied natural gas
  • WO2017006044 a sealed and thermally insulating tank for the storage of liquefied natural gas, integrated into a supporting structure, such as the double hull of a ship intended for the transport of liquefied natural gas.
  • the tank comprises a multilayer structure having successively, in the direction of the thickness, from the outside to the inside of the tank, a secondary thermally insulating barrier retained in the supporting structure, a secondary waterproofing membrane resting against the barrier.
  • thermally insulating secondary a primary thermally insulating barrier resting against the secondary waterproofing membrane and a primary waterproofing membrane intended to be in contact with the liquefied natural gas contained in the tank.
  • the figure 1 shows a sectional view of a sealed and thermally insulating tank according to WO2017006044 at an angle of 135 ° formed by two longitudinal walls of the tank in which only the secondary thermally insulating barrier and the secondary waterproofing membrane are illustrated.
  • the secondary thermally insulating barriers of the vessel walls comprise a plurality of insulating panels 102 of standard dimensions juxtaposed against a respective flat supporting wall of the structure. carrier.
  • the manufacture of this secondary thermally insulating barrier is done by juxtaposing the insulating panels 102 from a central portion of the corresponding tank wall to an edge of said tank wall, for example at an edge 101 formed by the junction flat load-bearing walls on which the secondary thermally insulating barriers are anchored at an angle of 135 °.
  • the secondary waterproofing membrane of the vessel walls consists of a plurality of metal sheets 103 of standard dimensions juxtaposed and carried by the secondary thermally insulating barrier.
  • the secondary waterproofing membrane comprises two series of perpendicular corrugations projecting outwards from the tank and thus allowing the secondary sealing membrane to deform under the effect of thermal stresses generated by the fluid stored in the tank.
  • Each metal sheet 103 of the secondary waterproofing membrane has substantially a length and a width corresponding to those of the standard insulating panels 102 of the secondary thermally insulating barrier and is arranged in an offset manner with respect to said insulating panels 102 such that it extends straddling four of the insulating panels 102.
  • These insulating panels 102 have grooves on an internal surface so as to accommodate the corrugations of the metal sheets 103. It is thus possible to produce the secondary thermally insulating barrier and the membrane of secondary sealing of the tank walls from standardized elements, the insulating panels 102 and the metal sheets 103.
  • the secondary thermally insulating barrier comprises a corner structure.
  • This corner structure comprises two corner insulating panels 104 which are respectively arranged against the supporting structure in the extension of the insulating panels 102 of one and the other of the two tank walls forming the angle of the tank at the level edge 101. These corner insulating panels 104 together form a corner of the secondary thermally insulating barrier of the tank.
  • Each of these two corner insulating panels 104 carries on its internal face a corner metal sheet 105 comprising a corrugation 106 parallel to the edge 101. This corrugation 106 is housed in a corresponding groove of the insulating corner panel 104 to a predefined distance from the edge 101.
  • each corner insulating panel 104 extends the insulating panels 102 of a tank wall. respective and the corner metal sheets 105 carried by said corner insulating panels 104 are located substantially in the same plane as the metal sheets 103 of the secondary sealing membranes of said respective tank walls.
  • Corrugations 108 of one of the series of corrugations of the secondary sealing membrane of the two vessel walls develop parallel to the ridge 101, that is to say parallel to the corrugation 106. Due to Using standardized metal sheets 103, the corrugations 108 of the corrugation series of the secondary waterproofing membrane parallel to the ridge 101 are separated by a regular spacing pitch 109.
  • the spacing between the The corrugation 106 and the ridge formed by the upper surface of the corner insulation panels 104 is preferably standardized in order to facilitate the construction of the corner insulation panels 104. For example, this spacing is substantially equal to said regular spacing step. 109.
  • a gap 110 separating the last insulation panel 102 from corner insulation panel 104 varies from vessel to vessel and cannot be known prior to vessel construction.
  • a metal connecting strip 111 is sealed. on the one hand to a metal sheet 103 carried by the insulating panel 102 and, on the other hand, to the corner metal sheet 105.
  • This metal connecting strip 111 comprises a corrugation 112 parallel to the corrugations 108 and separated from a corrugation 108 adjacent to the regular spacing pitch 109.
  • the connecting strip 111 and the angle metal sheet 105 make it possible to adapt to the dimensions of the tank and to make up for any gaps linked to the construction tolerances of the tank.
  • a distance 113 between the corrugation 112 of the metal bonding strip 111 and the corrugation 106 of the corner metal sheet 105 cannot be. known in advance and cannot be kept equal to the regular spacing 109 either.
  • This connecting strip 111 also comprises a series of corrugations (not shown) perpendicular to the ridge 101. These corrugations extend the corrugations of the series of corrugations of the vessel wall developing perpendicular to the ridge 101.
  • the sheets metal angle 105 and the angle bracket 107 also comprise corrugations perpendicular to the edge 101 in order to connect in a sealed and continuous manner the corrugations perpendicular to the edge 101 of the secondary sealing membranes of the two tank walls forming the angle at 135 °.
  • the metal connecting strip 111 and the angle metal sheet 105 thus make it possible to maintain a seal and good flexibility in the angle of the tank while allowing the use of standardized metal sheets 103, thus facilitating the construction of the membrane. secondary sealing on said tank walls.
  • tank walls forming an angle of 135 ° are also contiguous with a transverse tank wall developing perpendicular to the edge 101.
  • WO 2014/167228 discloses a sealed and thermally insulating tank integrated into a supporting structure according to the prior art.
  • An idea at the basis of the invention is to allow the production of a sealed and thermally insulating tank in a simple and rapid manner.
  • an idea at the basis of the invention is to allow the use of standardized elements for the manufacture of the vessel walls while offering good sealing and good flexibility of the secondary sealing membrane at the angles. of the tank, including at a corner of the tank formed by the junction between a transverse wall of the tank and a longitudinal wall of the tank.
  • the invention provides a sealed and thermally insulating tank integrated into a supporting structure, the supporting structure comprising a first flat supporting wall and a second flat supporting wall jointly forming an edge of the supporting structure, the vessel comprising a first vessel wall anchored on the first bearing wall and a second vessel wall anchored on the second bearing wall, each vessel wall having a multilayer structure comprising successively, in the direction of the thickness from the outside towards inside the tank, a thermally insulating barrier retained against the corresponding load-bearing wall and a waterproofing membrane carried by the thermally insulating barrier, the waterproofing membrane of the first tank wall comprising a first series of parallel corrugations developing perpendicular to the ridge and spaced at a regular spacing along the ridge, the waterproofing membrane of the second tank wall comprising a second series of parallel corrugations developing perpendicular to the ridge and spaced at said regular spacing along the ridge, each corrugation of the first series of corrugations being located in the extension of a corresponding ripple of the second
  • Such a sealed and thermally insulating tank makes it possible to produce a junction between the corrugations of the first tank wall and the corrugations of the second tank wall in a simple and rapid manner.
  • the connection between corrugations of the first tank wall and corrugations of the second tank wall perpendicular to the ridge which do not have a spacing along the ridge which is uniformly identical on the two tank walls could be standardized partite.
  • such a tank could use standardized closing caps to interrupt the corrugations having an offset, such closing caps being able to be used regardless of the offset between the corrugations along the ridge.
  • the interruption of the singular wave of the second tank wall at a distance from the ridge makes it possible to maintain flexibility of the waterproofing membrane at the level of the ridge despite the presence of an offset in one direction. parallel to the edge between the singular undulation and the subsequent undulation.
  • this interruption of the singular wave at a distance from the edge makes it possible to overcome the stresses associated with the stresses present on the first wall and at the level of the edge, that is to say to keep a pitch regular spacing in the most mechanically stressed areas in order to maintain good flexibility of the membrane in said stressed areas.
  • such a tank may include one or more of the following characteristics.
  • the ridge extends in a width direction of the supporting structure, the second supporting wall having a larger dimension than the first supporting wall in said width direction so that the second tank wall has a dimension greater than the first tank wall in said width direction.
  • each corrugation of the first series of corrugations is located in a plane perpendicular to the common edge with the corresponding corrugation of the second series of corrugations.
  • the first wave closure cap and the second wave closure cap are spaced from each other by a distance less than the regular spacing pitch.
  • the first wave closure cap and the second wave closure cap are arranged at a distance from the edge taken in a direction perpendicular to the substantially equal edge.
  • the waterproofing membrane retains good flexibility at the wave closure caps.
  • the supporting structure comprises a third flat supporting wall forming with the first flat supporting wall a second edge of the supporting structure parallel to said corrugations of the first series of corrugations, the singular corrugation of the first tank wall being parallel to said second edge, the thermally insulating barrier forming in line with the second edge of the supporting structure an upper edge parallel to said second edge of the supporting structure, the singular corrugation of the first tank wall being arranged at a distance predefined of the upper edge.
  • the predefined distance separating the upper edge of the singular corrugation of the first tank wall is equal to the regular spacing pitch.
  • the corrugations of the first series of corrugations extend over the entire first tank wall in the direction perpendicular to the edge and the corrugations of the second series of corrugations extending a corrugation of the first series. corrugations extend over the entire second vessel wall in the direction perpendicular to the ridge.
  • the singular spacing is less than the regular spacing pitch.
  • the singular spacing is greater than the regular spacing pitch.
  • the waterproof membrane exhibits good flexibility despite the ripple interruptions.
  • each tank wall further comprises a primary thermally insulating barrier resting against the waterproofing membrane and a primary waterproofing membrane carried by the primary thermally insulating barrier and intended to be in contact with a fluid contained in it. tank.
  • the sealing membrane of the first tank wall and the sealing membrane of the second tank wall further comprise corrugations parallel to the edge of the supporting structure.
  • Such a tank can be part of an onshore storage facility, for example to store LNG or be installed in a floating, coastal or deep water structure, in particular an LNG vessel, a floating storage and regasification unit (FSRU). , a floating production and remote storage unit (FPSO) and others.
  • FSRU floating storage and regasification unit
  • FPSO floating production and remote storage unit
  • the invention also provides a vessel for the transport of a cold liquid product comprises a double hull and a above-mentioned tank arranged in the double hull.
  • the invention also provides a method of loading or unloading such a vessel, in which a cold liquid product is conveyed through isolated pipes from or to a floating or land storage installation to or from the vessel. vessel tank.
  • the invention also provides a transfer system for a cold liquid product, the system comprising the aforementioned vessel, insulated pipes arranged so as to connect the tank installed in the hull of the vessel to a floating storage installation. or terrestrial and a pump for driving a flow of cold liquid product through the insulated pipes from or towards the floating or terrestrial storage installation towards or from the vessel of the vessel.
  • the figure 2 illustrates a corner of a sealed and thermally insulating tank between a first wall 1 of the tank, a second wall 2 of the tank and a third wall 3 of the tank.
  • a tank is self-supporting and may in particular have a parallelepiped, prismatic, spherical, cylindrical or multi-lobic shape.
  • the first wall 1 and the third wall 3 are longitudinal walls of the tank and together form an angle of 135 °.
  • the second wall 2 together with the first wall forms an angle of 90 °.
  • the second wall 2 forms an angle of 90 ° with the third wall.
  • tank walls 1, 2 and 3 can have a multilayer structure comprising a thermally insulating barrier anchored on a flat supporting wall of a supporting structure, and a waterproofing membrane carried by the thermally insulating barrier, and optionally a thermally insulating barrier. primary carried by the waterproofing membrane and a primary waterproofing membrane carried by the primary thermally insulating barrier and intended to be in contact with a cryogenic liquid contained in the tank, such as Liquefied Natural Gas (LNG) or other.
  • LNG Liquefied Natural Gas
  • the secondary and primary thermally insulating barriers of each tank wall can be made from insulating blocks as described in the document WO2017 / 006044 juxtaposed starting from a central portion of the corresponding tank wall.
  • the secondary and primary waterproofing membranes can be produced using standardized metal sheets and having series of perpendicular corrugations making it possible to absorb the stresses of the waterproofing membrane.
  • insulating panels and metal sheets can be produced in a manner analogous to the corresponding elements described in the documents. WO14057221 or, FR2691520 .
  • the figure 2 illustrates an edge 4 formed by the secondary sealing membrane at the junction between the first tank wall 1 and the third tank wall 3, an edge 5 formed by the secondary sealing membrane at the junction between the first tank wall 1 and the second tank wall 2, and an edge 6 formed by the secondary sealing membrane at the junction between the second tank wall 2 and the third tank wall 3.
  • Corrugations extending longitudinally in the tank are illustrated in the form of continuous lines, it being understood that these corrugations can take different shapes such as for example facing outwards or towards inside, have different heights or other.
  • the welds between the different elements of the secondary waterproofing membrane are illustrated on the figure 2 in the form of dotted lines. So on this figure 2 are delimited by dotted lines two metal sheets 22 on the second tank wall 2, metal connecting strips 23 on the first tank wall 1 and on the second tank wall and corner metal sheets 24 on the first tank wall 1 and on the second tank wall 2.
  • the first vessel wall 1 and the third vessel wall 3 may be formed in a manner analogous to the vessel walls described with reference to figure 1 .
  • the secondary sealing membrane of the first tank wall 1 has a first series of corrugations 7 developing parallel to the edge 4 and therefore perpendicular to the edge 5. These corrugations 7 are spaced apart by a pitch of 'regular spacing 8.
  • a regular spacing pitch 8 is for example of the order of 340mm.
  • the secondary waterproofing membrane of the first tank wall 1 comprises a singular corrugation 9 spaced from the edge 4 by a spacing pitch 80, this spacing pitch 80 possibly being for example equal to or distinct from said no regular spacing 8.
  • This singular corrugation 9 is spaced from a last corrugation 10 of the first series of undulations 7 by a singular spacing 11 distinct from the regular spacing 9.
  • This spacing step singular 11 is for example 340mm plus or minus a distance x determined by the manufacturing tolerances of the tank, this distance x being variable from one tank to another. This distance x is for example of the order of 40mm but may be less, the singular spacing step 11 thus being for example 340mm plus or minus 40mm.
  • the second vessel wall 2 can be formed analogously to the first and third vessel walls 1, 3.
  • the secondary sealing membrane of the second vessel wall 2 comprises a second series of separate corrugations 12. of regular spacing 8 and perpendicular to the edge 5.
  • the secondary sealing membrane of the second wall of tank 2 also comprises a third series of corrugations 13 perpendicular to the corrugations 12 of the second series of corrugations, c 'that is to say parallel to edge 5.
  • the corrugations 7, 9 of the first tank wall 1 are extended to the edge 5.
  • the corrugations 7, 9 of the first tank wall 1 s' preferably extend over the entire length, taken in a direction perpendicular to the edge 5, of the tank.
  • These corrugations 7, 9 are for example extended by portions of corrugations present on a corner metal sheet 24 carried by corner insulating panels (not shown) of the first tank wall 1 at the level of the angle at 90 °, as described above with regard to the figure 1 .
  • the central portion of the first tank wall 1 used as a reference for the positioning of the insulating panels of the secondary thermally insulating barrier of the first tank wall 1 is also used as a reference for the positioning of the insulating panels of the secondary thermally insulating barrier of the second tank wall 2.
  • the corrugations 7 of the first series of corrugations 7 of the secondary waterproofing membrane are arranged coplanar with corresponding corrugations of the second series of corrugations 12 of the second tank wall 2.
  • the corrugations 7 of the first series of corrugations 7 are connected continuously and tightly to the corresponding corrugations 12 of the second series of corrugations 12.
  • the corrugations 12 of the second series of corrugations 12 which are coplanar with the corrugations 7 of the first series of corrugations 7 are extended to the edge 5 by a corrugation portion carried by a sheet. corner metal 24 of the second wall of the tank 2.
  • the corrugation portions of the corner metal sheets of the first tank wall and of the second tank wall are connected together by a corrugation present in the angle iron. angle connecting said angle metal sheets, in a manner analogous to the manner described above with regard to the figure 1 .
  • the last corrugation 10 of the first series of corrugations 7 is extended on the second wall of tank 2 by a corresponding corrugation 14 of the second series of corrugations 12.
  • the second tank wall 2 develops in a transverse direction of the tank, that is to say parallel to the edge 5, over a greater distance than the first tank wall 1.
  • the first tank wall 1 is interrupted in this direction by the third tank wall 3 but the second tank wall 2 continues in this direction forming the 90 ° angle between the second tank wall 2 and the third tank wall 3.
  • a subsequent corrugation 15 of the second series of corrugations 12 is spaced from the corrugation 14 extending the last corrugation 10 of the first series corrugation 7 of the regular spacing pitch 8.
  • the last corrugation 10 of the first series of corrugations 7 is spaced from the singular corrugation 9 of the first tank wall 1 by the singular spacing 11 distinct from the no regular spacing 8.
  • the singular corrugation 9 of the first wall of tank 1 and the subsequent corrugation 15 of the second series of corrugations 12 are not coplanar. It is therefore not possible to continuously and tightly extend the singular corrugation 9 of the first wall of tank 1 by the subsequent corrugation 15 of the second series of corrugations 12 in a similar manner to the extension of the corrugations 7 of the first series of corrugations 7 by the corresponding corrugations 12 of the second series of corrugations 12.
  • the singular corrugation 9 of the first wall of tank 1 is extended by a singular corrugation 16 of the second wall of tank 2.
  • the angle bracket has a corrugation perpendicular to the 90 ° angle extending the singular corrugation 9 of the first tank wall 1.
  • the corner metal sheet 24 of the second tank wall 2 has a singular corrugation portion 17 developing perpendicular to the ridge 5 and coplanar with the singular corrugation 9 of the first wall of the tank 1. This singular corrugation portion 17 extends the corrugation of the angle bracket and therefore continuously and tightly extends the singular corrugation 9 of the first tank wall 1 on the second tank wall 2.
  • the singular corrugation 16 of the second vessel wall 2 further comprises a first closure cap 18.
  • This first closure cap 18 extends and terminates the singular corrugation portion 17 of the corner metal sheet 24 of the second wall. tank 2.
  • Such a closing cap 18 can be made in different ways.
  • the closure cap in the context of a singular corrugation 16 projecting towards the interior of the tank, the closure cap according to one embodiment can take the form illustrated on the figure. figure 3 .
  • the geometry of the closure cap 18 can be adapted accordingly to close the singular corrugation 16 by taking for example a section and / or an orientation in the tank identical to the section. and / or the orientation of said singular corrugation in the tank.
  • This first closure cap 18 as illustrated on figure 3 comprises an upper portion 19 in the form of a half-dome closing the singular corrugation portion 17 with which it is fixed in a sealed manner, for example by lap welding.
  • a fixing plate 20 surrounds the base of the upper portion 19 and is sealed to a metal sheet 22 adjacent to the corner metal sheet 24, typically to the metal connecting strip 23 connecting the metal sheets of the membrane d 'secondary sealing of the second tank wall and the angle metal sheet 24.
  • the fixing plate 20 advantageously comprises a release in the direction of the angle metal sheet 24 in order to overlap weld said fixing plate 20 on said sheet metal corner 24.
  • the extension of the singular corrugation 9 of the first wall of tank 1 on the second wall of tank 2 makes it possible not to interrupt the singular corrugation 9 of the first wall of tank 1.
  • longitudinal tanks that is to say the tank walls forming an angle of 135 ° between them, being subjected to significant stresses in use, it is particularly advantageous for the secondary waterproofing membrane to have a singular corrugation 9 along the entire length of the first tank wall 1.
  • the subsequent corrugation 15 of the second series of corrugations 12 is interrupted by a second closing cap 21.
  • This second closing cap 21 is analogous to the first closing cap 18 and the subsequent corrugation 15 is interrupted at a distance from the ridge 5.
  • the second closing cap 21 interrupts the subsequent corrugation 15, for example by being welded to the metal connecting strip 23.
  • the first closing cap 18 and the second closing cap 21 can be welded with overlap of their respective fixing plate so that the subsequent corrugation 15 and the singular corrugation 16 of the second tank wall 2 are as long as possible in a direction perpendicular to the edge 5, thus offering good flexibility to the secondary sealing membrane of the second tank wall.
  • the first closure cap 18 and the second closure cap 21 are simple parts to produce. In addition, these parts can be produced in a standardized manner and used in all tanks, whatever the manufacturing tolerances and the singular spacing 11. Thus, such a sealed and thermally insulating tank is simple to produce despite the unforeseeable. related to the manufacturing tolerances of the tank.
  • the techniques described above can be used to produce a tank having a single thermally insulating barrier and a single waterproof membrane, or to constitute a double membrane tank for liquefied natural gas (LNG) in an onshore installation or in a floating structure such as an LNG or other vessel.
  • LNG liquefied natural gas
  • the waterproof membrane illustrated in the preceding figures is a secondary waterproof membrane, and that a primary insulating barrier as well as a primary waterproof membrane, not shown, can also be added to this secondary waterproof membrane.
  • these techniques can also be applied to tanks. having a plurality of thermally insulating barriers and superimposed waterproof membranes.
  • the primary thermally insulating barrier resting on the secondary waterproofing membrane as well as the primary waterproofing membrane resting on the primary thermally insulating barrier can be produced in many ways.
  • the primary thermally insulating barrier can be produced in a manner analogous to the secondary thermally insulating barrier by means of insulating panels juxtaposed on the secondary waterproofing membrane.
  • the primary waterproofing membrane can be made from standardized metal sheets.
  • a cut-away view of an LNG carrier 70 shows a sealed and insulated tank 71 of generally prismatic shape mounted in the double hull 72 of the ship.
  • the wall of the vessel 71 comprises a primary watertight barrier intended to be in contact with the LNG contained in the vessel, a secondary watertight barrier arranged between the primary watertight barrier and the double hull 72 of the vessel, and two insulating barriers arranged respectively between the vessel. primary watertight barrier and the secondary watertight barrier and between the secondary watertight barrier and the double shell 72.
  • loading / unloading pipes 73 arranged on the upper deck of the ship can be connected, by means of suitable connectors, to a maritime or port terminal for transferring a cargo of LNG from or to the tank 71.
  • the figure 4 shows an example of a maritime terminal comprising a loading and unloading station 75, an underwater pipe 76 and an onshore installation 77.
  • the loading and unloading station 75 is a fixed off-shore installation comprising a movable arm 74 and a tower 78 which supports the movable arm 74.
  • the movable arm 74 carries a bundle of insulated flexible pipes 79 which can be connected to the loading / unloading pipes 73.
  • the movable arm 74 can be orientated and adapts to all sizes of LNG carriers.
  • a connecting pipe (not shown) extends inside the tower 78.
  • the loading and unloading station 75 allows the loading and unloading of the LNG carrier 70 from or to the onshore installation 77.
  • the latter comprises storage tanks liquefied gas 80 and connecting pipes 81 connected by the underwater pipe 76 to the loading or unloading station 75.
  • the underwater pipe 76 allows the transfer of the liquefied gas between the loading or unloading station 75 and the shore installation 77 over a great distance, for example 5 km, which makes it possible to keep the LNG carrier 70 at a great distance from the coast during loading and unloading operations.
  • pumps on board the ship 70 and / or pumps fitted to the shore installation 77 and / or pumps fitted to the loading and unloading station 75 are used.
  • the sealed and thermally insulating tank comprises only a thermally insulating barrier and a waterproofing membrane, for example produced in a manner analogous to the secondary thermally insulating barrier and the secondary waterproofing membrane described below. above next to the figure 2 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Claims (14)

  1. In einer Haltestruktur angeordnetes dichtes und wärmeisolierendes Gefäß, wobei die Haltestruktur eine erste plane Trägerwand und eine zweite plane Trägerwand umfasst, welche zusammen eine Kante der Haltestruktur bilden,
    wobei das Gefäß eine erste, mit der ersten Trägerwand verankerte Gefäßwand (1) und eine zweite, mit der zweiten Trägerwand verankerte Gefäßwand (2) umfasst, wobei jede Gefäßwand (1, 2) eine Mehrschichtenstruktur aufweist, welche aufeinanderfolgend in Richtung der Dicke vom Äußeren zum Inneren des Gefäßes eine gegen die entsprechende Trägerwand gehaltene wärmeisolierende Abdichtungssperre und eine von der wärmeisolierenden Abdichtungssperre getragene Abdichtungsmembran umfasst,
    wobei die Abdichtungsmembran der ersten Gefäßwand (1) eine erste Serie von parallelen Wellen (7, 10) umfasst, welche sich senkrecht zur Kante erstrecken und gemäß einem gleichmäßigen Abstandsintervall (8) entlang der Kante voneinander beabstandet sind, wobei die Abdichtungsmembran der zweiten Gefäßwand (2) eine zweite Serie von parallelen Wellen (12, 14, 15) umfasst, welche sich senkrecht zur Kante erstrecken und gemäß einem gleichmäßigen Abstandsintervall (8) voneinander beabstandet sind, wobei jede Welle (7, 10) der ersten Serie von Wellen (7, 10) sich in der Verlängerungen einer entsprechenden Welle (12, 14) der zweiten Serie von Wellen (12, 14, 15) erstreckt,
    wobei die Abdichtungsmembran der ersten Gefäßwand (1) weiterhin eine singuläre Welle (9) umfasst, welche sich parallel zu den Wellen (7, 10) der ersten Serie von Wellen (7, 10) erstreckt, wobei diese singuläre Welle (9) an die erste Serie von Wellen (7, 10) angrenzt und von der letzten Welle (10) der ersten Serie von Wellen (7,10) durch einen singulären Abstand (11), welcher ungleich zum gleichmäßigen Abstandsintervall (8) ist, beabstandet ist,
    wobei die Abdichtungsmembran der zweiten Gefäßwand (2) weiterhin eine singuläre Welle (16) umfasst, welche parallel zur zweiten Serie von Wellen (12, 14, 15) ist und in der Verlängerung der singulären Welle (9) der ersten Gefäßwand (1) angeordnet ist, wobei die singuläre Welle (16) der zweiten Gefäßwand (2) durchgehend mit der singulären Welle (9) der ersten Gefäßwand auf Höhe der Kante verbunden ist, wobei die singuläre Welle (16) der zweiten Gefäßwand (2) sich auf einem Teil der zweiten Gefäßwand (2) erstreckt und eine erste Wellenverschlusskappe (18) umfasst, um die singuläre Welle (16) der zweiten Gefäßwand (2) beanstandet zur Kante in dichter Weise zu verschließen, wobei die zweite Serie von Wellen (12, 14, 15) eine der letzten Welle (10) der ersten Serie von Wellen (7, 10) entsprechende Welle umfasst und dadurch gekennzeichnet ist, dass in dem Gefäß die zweite Serie von Wellen weiterhin umfasst
    eine weitere Welle (15), welche zur zweiten Serie von Wellen (12, 14, 15) gehört und von der singulären Welle (16) der zweiten Gefäßwand (2) in Richtung der Kante infolge des singulären Abstandes (11) versetzt ist, wobei die weitere Welle (15) der zweiten Serie von Wellen (12, 14, 15) eine zweite Verschlusskappe (21) umfasst, welche in dichter Weise die weitere Welle (15) der zweiten Serie von Wellen (12, 14, 15) verschließt.
  2. Dichtes und wärmeisolierendes Gefäß gemäß Anspruch 1, wobei sich die Kante in Richtung der Breite der Haltestruktur erstreckt, wobei die zweite Trägerwand entsprechend der Richtung der Breite eine größere Abmessung als die erste Trägerwand aufweist, so dass die zweite Gefäßwand (2) in Richtung der Breite eine größere Abmessung aufweist als die erste Gefäßwand (1).
  3. Dichtes und wärmeisolierendes Gefäß gemäß einem der Ansprüche 1 bis 2, wobei die erste Wellenverschlusskappe (18) und die zweite Wellenverschlusskappe (21) mit einer geringeren Entfernung als dem gleichmäßigen Abstandsintervall (8) voneinander beabstandet sind.
  4. Dichtes und wärmeisolierendes Gefäß gemäß einem der Ansprüche 1 bis 3, wobei die erste Wellenverschlusskappe (18) und die zweite Wellenverschlusskappe (21) in einer im Wesentlichen gleichen Entfernung von der Kante in einer senkrechten Richtung zur Kante angeordnet sind.
  5. Dichtes und wärmeisolierendes Gefäß gemäß einem der Ansprüche 1 bis 4, wobei die Haltestruktur eine dritte plane Trägerwand umfasst, welche mit der ersten planen Trägerwand eine zweite, zu den Wellen der ersten Serie von Wellen (7, 10) parallele, Kante der Haltestruktur bildet, wobei die wärmeisolierende Abdichtungssperre an der zweiten Kante der Haltestruktur eine obere Kante (4) bildet, welche parallel zur zweiten Kante der Haltestruktur ist, wobei die singuläre Welle (9) der ersten Gefäßwand (1) in einem vorgegebenen Abstand zur oberen Kante (4) angeordnet ist.
  6. Dichtes und wärmeisolierendes Gefäß gemäß Anspruch 5, wobei der vorgegeben Abstand, welcher die obere Kante (4) von der singulären Welle (9) der ersten Gefäßwand trennt, gleich zu dem gleichmäßigen Abstandsintervall (8) ist.
  7. Dichtes und wärmeisolierendes Gefäß gemäß einem der Ansprüche 1 bis 6, wobei die Wellen (7,10) der ersten Serie von Wellen (7, 10) sich in senkrechter Richtung zur Kante über die ganze erste Gefäßwand erstrecken und die Wellen (12, 14) der zweiten Serie von Wellen (12, 14, 15), welche eine Welle (7, 10) der ersten Serie der Wellen (7, 10) verlängern, sich in senkrechter Richtung zu Kante über die gesamte zweite Gefäßwand (2) erstrecken.
  8. Dichtes und wärmeisolierendes Gefäß gemäß einem der Ansprüche 1 bis 7, wobei der singuläre Abstand (11) geringer ist als der gleichmäßige Abstandsintervall (8).
  9. Dichtes und wärmeisolierendes Gefäß gemäß einem der Ansprüche 1 bis 7, wobei der singuläre Abstand (11) größer ist als der gleichmäßige Abstandsintervall (8).
  10. Dichtes und wärmeisolierendes Gefäß gemäß einem der Ansprüche 1 bis 9, wobei jede Gefäßwand (1, 2, 3) weiterhin eine primäre wärmeisolierende Abdichtungssperre umfasst, welche gegen die Abdichtungsmembran aufliegt, und eine primäre Abdichtungsmembran, welche von der primären Abdichtungssperre getragen wird, und dazu geeignet ist, mit einer im Gefäß enthaltenen Flüssigkeit in Kontakt zu treten.
  11. Dichtes und wärmeisolierendes Gefäß gemäß einem der Ansprüche 1 bis 10, wobei die Abdichtungsmembran der ersten Gefäßwand (1) und die Abdichtungsmembran der zweiten Gefäßwand (2) weiterhin Wellen umfassen, welche parallel zur Kante der Haltestruktur sind.
  12. Schiff (70) zum Transport einer kalten Flüssigkeit, wobei das Schiff eine Doppelhülle (72) und ein in der Doppelhülle angeordnetes Gefäß (71) gemäß einem der Ansprüche 1 bis 11 umfasst.
  13. Verfahren zur Be- und Entladung eines Schiffes (70) gemäß Anspruch 12, wobei eine kalte Flüssigkeit von oder zu einer schwimmenden oder erdverbundenen Speicheranlage (77) zu oder von dem Gefäß des Schiffes (71) durch isolierte Rohrleitungen (73, 79, 76, 81) geleitet wird.
  14. Transfersystem für eine kalte Flüssigkeit, wobei das System ein Schiff (70) gemäß Anspruch 12, isolierte Rohrleitungen (73,79, 76,81), welche so angeordnet sind, dass sie das in der Schiffshülle angeordnete Gefäß (71) mit einer schwimmenden oder erdverbundenen Speicheranlage (77) verbinden, und eine Pumpe umfasst, um eine Flüssigkeit durch isolierte Rohrleitungen von oder zu der schwimmenden oder erdverbundenen Speicheranlage zu oder von dem Gefäß des Schiffs zuleiten.
EP18762375.6A 2017-08-07 2018-08-03 Abgedichteter und wärmeisolierender tank Active EP3665414B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1757556A FR3069903B1 (fr) 2017-08-07 2017-08-07 Cuve etanche et themiquement isolante
PCT/FR2018/052023 WO2019030448A1 (fr) 2017-08-07 2018-08-03 Cuve etanche et thermiquement isolante

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JP (1) JP7134222B2 (de)
KR (1) KR102504563B1 (de)
CN (1) CN111108322B (de)
ES (1) ES2869236T3 (de)
FR (1) FR3069903B1 (de)
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WO (1) WO2019030448A1 (de)

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FR3099946B1 (fr) * 2019-08-12 2021-07-09 Gaztransport Et Technigaz Cuve étanche et thermiquement isolante

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JPS56109993A (en) * 1980-02-05 1981-08-31 Ishikawajima Harima Heavy Ind Co Ltd Expansion joint used in fluid storing tank at corner part of its side wall
SU1432307A1 (ru) * 1987-01-19 1988-10-23 Всесоюзный Научно-Исследовательский И Проектный Институт "Теплопроект" Теплоизол ционна конструкци изотермического резервуара
FR2691520B1 (fr) 1992-05-20 1994-09-02 Technigaz Ste Nle Structure préfabriquée de formation de parois étanches et thermiquement isolantes pour enceinte de confinement d'un fluide à très basse température.
FR2780942B1 (fr) * 1998-07-10 2000-09-08 Gaz Transport & Technigaz Cuve etanche et thermiquement isolante a structure d'angle perfectionnee, integree dans une structure porteuse de navire
RU30731U1 (ru) * 2002-10-07 2003-07-10 Общество с ограниченной ответственностью "Многопрофильное предприятие "Азовмашпром" Хранилище для жидкостей
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FR3038690B1 (fr) 2015-07-06 2018-01-05 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante ayant une membrane d'etancheite secondaire equipee d'un arrangement d'angle a toles metalliques ondulees
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ES2869236T3 (es) 2021-10-25
KR20200037304A (ko) 2020-04-08
JP2020530092A (ja) 2020-10-15
FR3069903A1 (fr) 2019-02-08
EP3665414A1 (de) 2020-06-17
CN111108322A (zh) 2020-05-05
FR3069903B1 (fr) 2019-08-30
KR102504563B1 (ko) 2023-02-28
RU2764605C2 (ru) 2022-01-18
WO2019030448A1 (fr) 2019-02-14
JP7134222B2 (ja) 2022-09-09
CN111108322B (zh) 2022-03-01
RU2020102710A (ru) 2021-09-10
RU2020102710A3 (de) 2021-12-06

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