EP3665414A1 - Cuve etanche et thermiquement isolante - Google Patents
Cuve etanche et thermiquement isolanteInfo
- Publication number
- EP3665414A1 EP3665414A1 EP18762375.6A EP18762375A EP3665414A1 EP 3665414 A1 EP3665414 A1 EP 3665414A1 EP 18762375 A EP18762375 A EP 18762375A EP 3665414 A1 EP3665414 A1 EP 3665414A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall
- corrugations
- vessel
- series
- edge
- 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.)
- Granted
Links
- 239000012528 membrane Substances 0.000 claims abstract description 82
- 238000007789 sealing Methods 0.000 claims abstract description 67
- 230000004888 barrier function Effects 0.000 claims description 45
- 238000003860 storage Methods 0.000 claims description 12
- 239000012263 liquid product Substances 0.000 claims description 8
- 230000000284 resting effect Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000000717 retained effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract 3
- 239000002184 metal Substances 0.000 description 45
- 239000003949 liquefied natural gas Substances 0.000 description 21
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000004078 waterproofing Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 230000008646 thermal stress Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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 storing and / or transporting fluid, such as a cryogenic fluid.
- Watertight and thermally insulating membrane tanks are used in particular for the storage of liquefied natural gas (LNG), which is stored at atmospheric pressure at about -162 ° C. These tanks can be installed on the ground or on a floating structure. In the case of a floating structure, the tank may be intended for the transport of liquefied natural gas or to receive liquefied natural gas used as fuel for the propulsion of the floating structure.
- LNG liquefied natural gas
- 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 vessel for the transport of liquefied natural gas.
- the tank comprises a multilayer structure successively presenting, in the direction of the thickness, from the outside to the inside of the tank, a secondary heat-insulating barrier retained to the supporting structure, a secondary waterproofing membrane resting against the barrier thermally insulating secondary, a primary thermally insulating barrier resting against the secondary sealing membrane and a primary sealing membrane intended to be in contact with the liquefied natural gas contained in the tank.
- FIG. 1 represents a sectional view of a sealed and thermally insulating tank according to WO2017006044 at a 135 ° angle formed by two longitudinal walls of the tank in which only the secondary thermally insulating barrier and the secondary sealing 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 planar bearing 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 vessel wall to an edge of said vessel wall, for example at an edge 101 formed by the junction flat bearing walls on which are anchored the secondary thermally insulating barriers at an angle of 135 °.
- the secondary membrane of the tank walls consists of a plurality of metal sheets 103 with standard dimensions juxtaposed and carried by the secondary thermally insulating barrier.
- the secondary sealing membrane comprises two series of perpendicular corrugations projecting outwardly from the tank and thus allowing the secondary sealing membrane to deform under the effect of the thermal stresses generated by the fluid stored in the tank .
- Each metal sheet 103 of the secondary sealing 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 offset from said insulating panels 102 so that it extends over four of the insulating panels 102.
- These insulating panels 102 have on an inner surface grooves so as to accommodate the corrugations of the metal plates 103. It is thus possible to produce the secondary thermally insulating barrier and the membrane.
- the secondary thermally insulating barrier has a corner structure.
- This corner structure comprises two insulating corner 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 cell walls forming the angle of the tank at the level of of the edge 101. These insulating corner panels 104 together form a corner of the secondary thermally insulating barrier of the tank.
- Each of these two insulating angle panels 104 carries on its inner face an angle metal plate 105 having a corrugation 106 parallel to the edge 101. This corrugation 106 is housed in a corresponding groove of the insulating 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 angle metal sheets 105 carried by said insulating panels of angle 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 edge 101, that is to say parallel to the corrugation 106.
- the use of standardized metal sheets 103, the corrugations 108 of the series of corrugation of the secondary sealing membrane parallel to the edge 101 are separated by a regular spacing pitch 109.
- the spacing between the The corrugation 106 and the edge formed by the top surface of the insulating corner panels 104 is preferably standardized to facilitate the construction of the corner insulating panels 104. For example, this gap is substantially equal to said regular spacing pitch 109.
- a gap 110 between the last insulating panel 102 of the insulating corner panel 104 varies from one tank to another and can not be known before the construction of the tank.
- a metal bonding strip 111 is sealed welded on the one hand to a metal sheet 103 carried by the insulating panel 102 and, on the other hand, to the angle metal sheet 105.
- This metal bonding strip 111 comprises a corrugation 112 parallel to the corrugations 108 and separated from a adjacent ripple 108 of 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 any gaps related 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 angle metal sheet 105 can not be known in advance and can not be maintained either equal to the regular spacing pitch 109.
- This connecting strip January 1 also comprises a series of corrugations (not shown) perpendicular to the edge 101. These corrugations extend the corrugations of the series of corrugations of the vessel wall developing perpendicularly to the edge 101.
- the angle metal plates 105 and the corner angle 107 also comprise corrugations perpendicular to the edge 101 in order to seal tightly and continuously the corrugations perpendicular to the edge 101 of the secondary sealing membranes of the two walls of the wall. vessel forming the 135 ° angle.
- the metal connecting strip 1 1 1 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 secondary sealing membrane on said vessel walls.
- these vessel walls forming a 135 ° angle are also joined to a transverse vat wall developing perpendicularly to the edge 101.
- An idea underlying the invention is to allow the realization of a sealed and thermally insulating tank in a simple and fast manner.
- an idea underlying the invention is to allow the use of standardized elements for the manufacture of the tank walls while providing good sealing and good flexibility of the secondary sealing membrane at the angles of the tank, including at an angle 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 in a supporting structure, the bearing structure comprising a first planar bearing wall and a second planar bearing wall jointly forming an edge of the supporting structure,
- each tank wall having a multilayer structure comprising successively, in the direction of the thickness from the outside to inside the tank, a thermally insulating barrier retained against the corresponding supporting wall and a sealing membrane carried by the thermally insulating barrier,
- the sealing membrane of the first vessel wall having a first series of parallel corrugations extending perpendicularly to the edge and spaced at a regular pitch spacing along the edge
- the sealing membrane of the second vessel wall having a second series of parallel corrugations extending perpendicularly to the ridge and spaced at said regular spacing pitch along the ridge, each ripple of the first ripple series being located in the extension of the ridge; a corresponding ripple of the second wave series,
- the sealing membrane of the first vessel wall further comprising a singular corrugation developing parallel to the corrugations of the first corrugation series, this singular corrugation being adjacent to the first series of corrugations and spaced from a last corrugation of the first series of corrugations by a singular spacing different from the regular spacing pitch,
- the sealing membrane of the second vessel wall further comprising a singular corrugation parallel to the second series of corrugations and located in the extension of the singular undulation of the first vessel wall, the singular corrugation of the second wall; vessel being continuously connected to the singular corrugation of the first vessel wall at the ridge, said singular corrugation of the second vessel wall extending over a portion of the second vessel wall and having a first wave closure cap for sealing the singular ripple of the second vessel wall away from the ridge,
- the second series of corrugations having a corresponding undulation of the last undulation of the first series of undulations and a subsequent undulation belonging to the second series of undulations and offset from the singular undulation of the second vessel wall in the direction of the ridge due to the singular spacing, said subsequent corrugation of the second series of corrugations having a second closure cap sealingly closing said subsequent ripple of its second series of corrugations.
- Such a sealed and thermally insulating tank makes it possible to form a junction between the corrugations of the first tank wall and the corrugations of the second tank wall in a simple and fast manner.
- vessel walls could be standardized partite.
- such a tank could use standardized closure caps to interrupt the corrugations with an offset, such closure caps can be used regardless of the offset between the corrugations along the edge.
- such a tank may comprise one or more of the following characteristics.
- the edge extends in a direction of width of the carrier structure, the second carrier wall having a greater dimension than the first carrier wall in said width direction so that the second vessel wall presents a larger dimension than the first vessel wall in said width direction.
- each undulation of the first series of undulations is located in a plane perpendicular to the common edge with the corresponding undulation of the second series of undulations.
- 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 disposed at a distance from the edge taken in a direction perpendicular to the substantially equal edge.
- the waterproofing membrane retains good flexibility at the level of the closure caps.
- the carrier structure comprises a third planar bearing wall forming with the first planar bearing 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 at the second edge of the supporting structure an upper edge parallel to said second edge of the supporting structure, the singular undulation of the first tank wall being arranged at a distance predefined upper edge.
- the predefined distance separating the upper edge of the singular undulation from the first vessel wall is equal to the regular spacing pitch.
- the corrugations of the first series of corrugations extend over the entire first vessel wall in the perpendicular direction of the ridge and the corrugations of the second series of corrugations extend a ripple of the first series. of corrugations extend over the entire second vessel wall in the direction perpendicular to the edge.
- the singular spacing is less than the regular spacing pitch.
- the singular spacing is greater than the regular spacing pitch.
- the waterproof membrane has good flexibility despite the interruptions in ripples.
- each vessel wall further comprises a primary thermally insulating barrier resting against the sealing membrane and a primary sealing membrane carried by the primary thermally insulating barrier and intended to be in contact with a fluid contained in 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 a land storage facility, for example to store LNG or be installed in a floating structure, coastal or deep water, including a LNG tank, 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 said tank disposed 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 facility to or from the vessel vessel.
- the invention also provides a transfer system for a cold liquid product, the system comprising the abovementioned vessel, insulated pipes arranged to connect the vessel installed in the hull of the vessel to a floating storage facility. or terrestrial and a pump for driving a flow of cold liquid product through the insulated pipelines from or to the floating or land storage facility to or from the vessel vessel.
- Figure 1 is a partial sectional view of a sealed tank and thermally insulating according to the prior art.
- FIG. 2 is a schematic perspective view of a sealed and thermally insulating cup wedge between two longitudinal walls and a transverse wall of the tank in which only the secondary sealing membrane is illustrated.
- Figure 3 is a schematic perspective view of a wave closure cap.
- FIG. 4 is a cutaway schematic representation of a vessel of a LNG carrier and a loading / unloading terminal of this vessel.
- FIG. 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 parallelepipedal, prismatic, spherical, cylindrical or multi-lobic shape.
- the first wall 1 and the third wall 3 are longitudinal walls of the vessel and together form an angle of 135 °.
- the second wall 2 forms together with the first wall an angle of 90 °.
- the second wall 2 forms with the third wall an angle of 90 °,
- These tank walls 1, 2 and 3 may have a multilayer structure comprising a thermally insulating barrier anchored to a planar bearing wall of a supporting structure, and a sealing membrane carried by the thermally insulating barrier, and possibly a thermally insulating barrier. a membrane carried by the sealing membrane and a primary sealing 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 The vessel may be made from insulating blocks as described in WO2017 / 006044 juxtaposed starting from a central portion of the corresponding vessel wall.
- the secondary and primary sealing membranes can be made using standardized metal sheets and having a series of perpendicular corrugations to absorb the constraints of the waterproofing membrane.
- insulating panels and metal sheets may be made in a similar manner to the corresponding elements described in documents WO14057221 or FR2891520.
- FIG. 2 illustrates an edge 4 formed by the secondary sealing membrane at the junction between the first vessel wall 1 and the third vessel wall 3, an edge 5 formed by the secondary sealing membrane at the level of the 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 forms, such as being turned outwards or towards the interior, presenting different heights or other.
- the welds between the different elements of the secondary sealing membrane are illustrated in FIG. 2 in the form of dashed lines.
- dashed 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 metal plates. angle 24 on the first vessel wall 1 and on the second vessel wall 2.
- the first tank wall 1 and the third tank wall 3 can be formed analogously to the tank walls described with reference to FIG. 1.
- the secondary sealing membrane of the first tank wall 1 presents 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 regular spacing pitch 8.
- a regular spacing pitch 8 is for example of order of 340mm.
- the secondary sealing membrane of the first vessel wall 1 comprises a singular corrugation 9 spaced from the edge 4 by a spacing pitch 80, this spacing pitch 80 being for example equal to or distinct from said no regular spacing 8.
- This singular undulation 9 is spaced from a last corrugation 10 of the first series of corrugations 7 by a spacing pitch singular 11 distinct from the regular spacing pitch 9.
- This spacing step singular 11 is for example 340 mm 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 40 mm but can be smaller, the singular spacing pitch 11 thus being for example 340 mm plus or minus 40 mm.
- the second tank wall 2 may be formed in a similar manner to the first and third tank walls 1, 3.
- the secondary sealing membrane of the second tank wall 2 comprises a second series of separate corrugations 12 of the regular spacing pitch 8 and perpendicular to the edge 5.
- the secondary sealing membrane of the second tank wall 2 also comprises a third series of corrugations 13 perpendicular to the corrugations 12 of the second series of corrugations, c that is, parallel to the 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' extend preferably 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 an angle metal sheet 24 carried by insulating angle panels (not shown) of the first vessel wall 1 at the angle to 90 °, as described above with reference to FIG.
- 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 the insulating panels of the secondary thermally insulating barrier of the second tank wall 2,
- the corrugations 7 of the first corrugation series 7 of the secondary sealing membrane are arranged coplanarly 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 in a continuous and sealed manner to the corresponding corrugations 12 of the second series of corrugations.
- the corrugations 12 of the second series of corrugations 12 which are coplanar with corrugations 7 of the first series of corrugations 7 are extended to the edge 5 by a corrugation portion carried by a sheet angle portion 24 of the second wall of the vessel 2.
- the corrugation portions of the angle metal plates of the first vessel wall and the second vessel wall are connected together by a corrugation present in the angle of angle connecting said angle metal sheets, in a similar manner to the manner described above with reference to Figure 1.
- the last corrugation 10 of the first series of corrugations 7 is extended on the second tank wall 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 ridge. 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 vessel wall 2 and the third vessel wall 3.
- a subsequent corrugation 15 of the second corrugation series 12 is spaced from the corrugation 14 extending the last corrugation 10 of the first series
- the last corrugation 10 of the first corrugation series 7 is spaced from the singular corrugation 9 of the first tank wall 1 of the singular spacing pit 11, which is distinct from the corrugation 7 of the regular spacing pitch. 8.
- the singular corrugation 9 of the first vessel wall 1 and the subsequent corrugation 15 of the second series of corrugations 12 are not coplanar. It is therefore not possible to continuously extend and seal the singular corrugation 9 of the first tank wall 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 tank wall 1 is extended by a singular corrugation 16 of the second tank wall 2.
- the corner angle has a corrugation perpendicular to the 90 ° angle prolonging the singular undulation 9 of the first tank wall 1.
- the angle metal sheet 24 of the second tank wall 2 has a singular corrugation portion 17 se developing perpendicularly to the edge 5 and coplanar singular corrugation 9 of the first vessel wall 1. This singular corrugation portion 17 extends the undulation of the corner angle and therefore extends continuously and tightly singular corrugation 9 of the first tank wall 1 on the second tank wall 2.
- the singular corrugation 16 of the second tank wall 2 further comprises a first closure cap 18.
- This first closure cap 18 extends and terminates the singular corrugation portion 17 of the second-wall angle metal sheet 24 of tank 2.
- Such a closure cap 18 can be made in different ways.
- the closure cap according to one embodiment can take the form illustrated in FIG. 3.
- the geometry of the closure cap 18 can be adapted accordingly to close the singular undulation 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 undulation in the tank.
- This first closure cap 18 as illustrated in 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 sealingly, for example by lap welding.
- An attachment plate 20 surrounds the base of the upper portion 19 and is sealingly welded to a metal sheet 22 adjacent to the angle metal sheet 24, typically on the metal bonding strip 23 connecting the metal sheets of the membrane. secondary sealing of the second tank wall and the angle metal plate 24.
- the fixing plate 20 advantageously comprises a stall in the direction of the metal sheet of angle 24 in order to weld overlap said fixing plate 20 on said sheet metal metal angle 24.
- the extension of the singular undulation 9 of the first tank wall 1 on the second tank wall 2 makes it possible not to interrupt the singular undulation 9 of the first tank wall 1.
- the walls of the longitudinal tanks that is to say the vessel walls forming an angle of 135 ° between them, being subjected to significant stress in use, it is particularly advantageous that the secondary sealing membrane has a singular corrugation 9 along the entire length of the first tank wall 1.
- the subsequent corrugation 15 of the second corrugation series 12 is interrupted by a second closure cap 21.
- This second closure cap 21 is similar to the first closure cap 18 and the subsequent corrugation 15 is interrupted at a distance from the edge 5.
- the second closure cap 21 interrupts the subsequent corrugation 15, for example by being welded to the metal connecting strip 23.
- the first closure cap 18 and the second closure cap 21 may be welded with overlapping of their respective fastening plate so that the subsequent corrugation 15 and the singular corrugation 16 of the second tank wall 2 are the longest possible in a direction perpendicular to the edge 5, thus providing 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 pieces to make. In addition, these parts can be made in a standardized manner and used in all tanks, regardless of the manufacturing tolerances and singular spacing pitch 1 1. Thus, such a sealed and thermally insulating tank is simple to achieve despite the unpredictable due to 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 sealed membrane, or to constitute a double membrane tank for liquefied natural gas (LNG) in a land installation or in a floating structure such as a LNG tanker or other.
- LNG liquefied natural gas
- the waterproof membrane illustrated in the previous figures is a secondary waterproof membrane, and that a primary insulating barrier and a primary waterproof membrane, not shown, can be added to this secondary waterproof membrane.
- these techniques can also be applied to the tanks having a plurality of thermally insulating barriers and superimposed waterproof membranes.
- the primary thermally insulating barrier resting on the secondary sealing membrane as well as the primary sealing membrane resting on the primary thermally insulating barrier can be realized in many ways.
- the primary thermally insulating barrier can be made analogous to the secondary thermally insulating barrier by means of insulating panels juxtaposed on the secondary sealing membrane.
- the primary waterproofing membrane can be made from standardized metal sheets.
- a broken view of a LNG tank 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 tank 71 comprises a primary sealed barrier intended to be in contact with the LNG contained in the tank, a secondary sealed barrier arranged between the primary waterproof barrier and the double hull 72 of the ship, and two insulating barriers arranged respectively between the primary watertight barrier and the secondary watertight barrier and between the secondary watertight barrier and the double hull 72.
- loading / unloading lines 73 arranged on the upper deck of the ship can be connected, by means of appropriate connectors, to a marine or port terminal to transfer a cargo of LNG from or to the tank 71.
- FIG. 4 represents an example of a marine terminal comprising a loading and unloading station 75, an underwater pipe 76 and an earth installation 77.
- the loading and unloading station 75 is a fixed off-shore installation comprising an arm mobile 74 and a tower 78 which supports the movable arm 74.
- the movable arm 74 carries a bundle of insulated flexible pipes 79 that can connect to the loading / unloading pipes 73.
- the movable arm 74 can be adapted to all gauges of LNG carriers .
- a connection pipe (not shown) extends inside the tower 78.
- the loading and unloading station 75 enables the loading and unloading of the LNG tank 70 from or to the shore facility 77.
- the underwater line 76 allows the transfer of the liquefied gas between the loading or unloading station 75 and the installation on land 77 over a large distance, for example 5 km, which keeps the LNG tanker 70 at a great distance from the coast during the loading and unloading operations.
- pumps on board the ship 70 and / or pumps equipping the shore installation 77 and / or pumps equipping the loading and unloading station 75 are used.
- the sealed and thermally insulating tank comprises only a thermally insulating barrier and a sealing membrane, for example made in a manner analogous to the secondary thermally insulating barrier and the secondary sealing membrane described herein. above with reference to Figure 2.
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- 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)
Abstract
Description
Claims
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 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3665414A1 true EP3665414A1 (fr) | 2020-06-17 |
EP3665414B1 EP3665414B1 (fr) | 2021-03-24 |
Family
ID=60382346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18762375.6A Active EP3665414B1 (fr) | 2017-08-07 | 2018-08-03 | Cuve etanche et thermiquement isolante |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP3665414B1 (fr) |
JP (1) | JP7134222B2 (fr) |
KR (1) | KR102504563B1 (fr) |
CN (1) | CN111108322B (fr) |
ES (1) | ES2869236T3 (fr) |
FR (1) | FR3069903B1 (fr) |
RU (1) | RU2764605C2 (fr) |
WO (1) | WO2019030448A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3099946B1 (fr) | 2019-08-12 | 2021-07-09 | Gaztransport Et Technigaz | Cuve étanche et thermiquement isolante |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
FR2861060B1 (fr) | 2003-10-16 | 2006-01-06 | Gaz Transport & Technigaz | Structure de paroi etanche et cuve munie d'une telle structure |
US20090293506A1 (en) | 2008-05-30 | 2009-12-03 | Daewoo Shipbuilding & Marine Engineering Co., Ltd. | Semi-Submersible Offshore Structure Having Storage Tanks for Liquified Gas |
FR2961580B1 (fr) * | 2010-06-17 | 2012-07-13 | Gaztransport Et Technigaz | Cuve etanche et isolante comportant un pied de support |
FR2978748B1 (fr) * | 2011-08-01 | 2014-10-24 | Gaztransp Et Technigaz | Cuve etanche et thermiquement isolante |
FR2983751B1 (fr) * | 2011-12-08 | 2014-08-08 | Gaztransp Et Technigaz | Construction d'une membrane etanche a partir de plaques metalliques |
AP2015008317A0 (en) | 2012-09-21 | 2015-03-31 | Woodside Energy Technologies Pty Ltd | Integrated storage/offloading facility for an lng production plant |
FR2996520B1 (fr) | 2012-10-09 | 2014-10-24 | Gaztransp Et Technigaz | Cuve etanche et thermiquement isolante comportant une membrane metalique ondulee selon des plis orthogonaux |
FR3004507B1 (fr) * | 2013-04-11 | 2019-04-26 | Gaztransport Et Technigaz | Decouplage des ondulations d'une barriere etanche |
KR101625877B1 (ko) * | 2014-07-16 | 2016-06-01 | 삼성중공업 주식회사 | 액화가스 화물창 및 그 제작방법 |
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 |
RU2600419C1 (ru) * | 2015-08-13 | 2016-10-20 | Общество с ограниченной ответственностью проектно-конструкторское бюро "БАЛТМАРИН" | Мембранный танк для сжиженного природного газа (тип вм) |
KR101826684B1 (ko) * | 2015-10-12 | 2018-02-07 | 대우조선해양 주식회사 | 멤브레인형 액화천연가스 저장탱크 |
-
2017
- 2017-08-07 FR FR1757556A patent/FR3069903B1/fr not_active Expired - Fee Related
-
2018
- 2018-08-03 EP EP18762375.6A patent/EP3665414B1/fr active Active
- 2018-08-03 RU RU2020102710A patent/RU2764605C2/ru active
- 2018-08-03 ES ES18762375T patent/ES2869236T3/es active Active
- 2018-08-03 WO PCT/FR2018/052023 patent/WO2019030448A1/fr unknown
- 2018-08-03 CN CN201880051734.9A patent/CN111108322B/zh active Active
- 2018-08-03 JP JP2020506807A patent/JP7134222B2/ja active Active
- 2018-08-03 KR KR1020207005526A patent/KR102504563B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
FR3069903B1 (fr) | 2019-08-30 |
RU2020102710A3 (fr) | 2021-12-06 |
CN111108322B (zh) | 2022-03-01 |
JP7134222B2 (ja) | 2022-09-09 |
RU2020102710A (ru) | 2021-09-10 |
ES2869236T3 (es) | 2021-10-25 |
CN111108322A (zh) | 2020-05-05 |
WO2019030448A1 (fr) | 2019-02-14 |
EP3665414B1 (fr) | 2021-03-24 |
FR3069903A1 (fr) | 2019-02-08 |
JP2020530092A (ja) | 2020-10-15 |
RU2764605C2 (ru) | 2022-01-18 |
KR20200037304A (ko) | 2020-04-08 |
KR102504563B1 (ko) | 2023-02-28 |
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