CN117818820A - Film type liquid cargo containment system and LNG ship - Google Patents

Film type liquid cargo containment system and LNG ship Download PDF

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Publication number
CN117818820A
CN117818820A CN202410251292.XA CN202410251292A CN117818820A CN 117818820 A CN117818820 A CN 117818820A CN 202410251292 A CN202410251292 A CN 202410251292A CN 117818820 A CN117818820 A CN 117818820A
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CN
China
Prior art keywords
module
modules
insulation
insulating
bridging
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Pending
Application number
CN202410251292.XA
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Chinese (zh)
Inventor
宋炜
史文军
万忠
吴天威
金燕子
王佳颖
卢兴民
刘涛
王知谦
徐楠星
严雪阳
刘金峰
朱子龙
唐诗渊
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Hudong Zhonghua Shipbuilding Group Co Ltd
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Hudong Zhonghua Shipbuilding Group Co Ltd
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Application filed by Hudong Zhonghua Shipbuilding Group Co Ltd filed Critical Hudong Zhonghua Shipbuilding Group Co Ltd
Priority to CN202410251292.XA priority Critical patent/CN117818820A/en
Publication of CN117818820A publication Critical patent/CN117818820A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a film type liquid cargo containment system and an LNG ship, wherein a plane insulation module and a two-sided corner area insulation module respectively comprise a main layer insulation module and a secondary layer insulation module which are prefabricated into a whole, and the main layer insulation module forms a step surface above the secondary layer insulation module; the two-sided corner region insulation module is provided with three supporting surfaces, the plane insulation module and the two-sided corner region insulation module are respectively anchored on the ship body structure, and the first bridging module is arranged on the step surface between the adjacent plane insulation modules or the step surface between the adjacent plane insulation modules and the two-sided corner region insulation module; the first bridging module is provided with a first bridging metal plate, and the end part of the first bridging metal plate extends to span the adjacent planar insulating module or the two-sided corner insulating module. According to the invention, the end part of the first bridging metal plate extends beyond the first bridging module, so that the first bridging module can be fixed when being installed, the first bridging module is prevented from being misplaced before being firmly bonded, and the bonding effectiveness is ensured.

Description

Film type liquid cargo containment system and LNG ship
Technical Field
The invention relates to the field of liquefied gas storage and transportation, in particular to a film type liquid cargo containment system and an LNG ship.
Background
The containment system is a core component of the LNG transport ship and mainly comprises a shielding layer, a heat insulation layer and a supporting structure, the thin film type containment system is mainly divided into a NO. series, a Mark series and a CS1 series, and the thin film type liquid tank containment system is mainly provided by French GTT company at present.
The prior film type enclosure system is generally built by sequentially installing and constructing a secondary insulating layer, a secondary film type enclosure system, a main insulating layer and a main film type enclosure system, such as ' MARK III FLEX and NO96 enclosure system comparison and building process research ' Yan Lei, etc., and the 31 st 3 rd period, 57-62 pages ' of the 2015 th year of ships and ocean engineering disclose: 2.5 mounting an insulating module of the resin coating machine; 2.6 screen wall installations; 2.8 main layer insulation integrity; 2.9 the welding work of the main layer stainless steel corrugated plate.
The cargo tank is used as a three-dimensional cabin, the cargo tank is formed by encircling the planar cabin walls, the intersecting areas of the planar cabin walls form included angles, the stress of the included angle areas is more critical, the larger the general hardness of the existing insulating material is, the worse the heat preservation effect is, the hardness of the material with better heat preservation effect is often lower, and therefore, the enclosure system of the included angle areas of the cabin walls is required to ensure good supporting strength and good heat insulation effect. At present, the corner insulating modules are generally made into an integral structure matched with the shape of the included angle of the bulkhead, or are spliced along the diagonal line of the included angle area of the bulkhead, but the strength and the heat insulation effect are not ideal.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a film type liquid cargo containment system and an LNG ship, which are characterized in that a main layer insulation module and a secondary layer insulation module of a plane area, a dihedral corner area and a dihedral corner area are prefabricated into a whole, and are arranged on a ship body structure in an anchoring manner, so that the heat insulation effect of the corner area is improved, the strength of the corner area is ensured, and the integral performance of the containment system is improved.
The technical purpose of the invention is realized by the following technical scheme:
the thin film type liquid cargo containment system comprises a plane insulation module and a two-sided corner area insulation module, wherein the plane insulation module and the two-sided corner area insulation module respectively comprise a main layer insulation module and a secondary layer insulation module which are prefabricated into a whole, and the main layer insulation module forms a step surface above the secondary layer insulation module; the two-sided corner region insulation module is provided with three supporting surfaces, the plane insulation module and the two-sided corner region insulation module are respectively anchored on the ship body structure, a first bridging module is arranged on the step surface, and the first bridging module is arranged on the step surface between the adjacent plane insulation modules or the step surface between the adjacent plane insulation modules and the two-sided corner region insulation modules; the first bridging module is provided with a first bridging metal plate, and the end part of the first bridging metal plate extends across to the adjacent planar insulating module or the two-sided corner insulating module relative to the first bridging module.
Further, the main layer insulation modules of the two-sided corner region insulation module comprise a corner region middle main layer insulation module and corner region auxiliary main layer insulation modules, the corner region auxiliary main layer insulation modules are arranged on two sides of the corner region middle main layer insulation module, a first supporting surface is formed between the corner region auxiliary main layer insulation modules by the corner region middle main layer insulation modules, the corner region auxiliary main layer insulation modules extend along the first supporting surface to form two second supporting surfaces, and the second supporting surfaces form obtuse included angles relative to the first supporting surfaces.
Further, the sub-layer insulating modules of the two-sided corner region insulating module comprise corner region middle sub-layer insulating modules and corner region auxiliary sub-layer insulating modules, the corner region auxiliary sub-layer insulating modules are arranged on two sides of the corner region middle sub-layer insulating modules, connecting joints are arranged between the corner region middle sub-layer insulating modules and the corner region auxiliary sub-layer insulating modules, and heat preservation materials are filled in the connecting joints.
Further, the connecting seam is arranged perpendicular to the hull structure; the heat insulation material comprises a flexible heat insulation material and a rigid heat insulation material, wherein a section of the main layer insulation module, which is close to the two-sided corner region insulation modules, in the connecting joint is filled with the flexible heat insulation material, the rest part of the connecting joint is filled with the rigid heat insulation material, and the rigid heat insulation material is respectively in bonding connection with the middle sub-layer insulation module and the corner region auxiliary sub-layer insulation module.
Further, a connecting seam is also arranged between the corner region middle main layer insulating module and the corner region auxiliary main layer insulating module, and a flexible heat insulation material is filled in the connecting seam between the corner region middle main layer insulating module and the corner region auxiliary main layer insulating module; the connecting seam between the corner region middle main layer insulating module and the corner region auxiliary main layer insulating module corresponds to the connecting seam between the corner region middle sub-layer insulating module and the corner region auxiliary sub-layer insulating module.
Further, the edges of the main layer insulating modules of the plane insulating modules and the two-sided corner region insulating modules are provided with mounting grooves corresponding to the end parts of the first bridging metal plates of the first bridging modules, and the end parts of the first bridging metal plates are inserted into the mounting grooves of the adjacent plane insulating modules or the two-sided corner region insulating modules.
Further, the end of the first bridging metal plate is provided with a waist-shaped hole, the length direction of the waist-shaped hole is arranged along the length direction of the first bridging metal plate, and a connecting piece for installing the end of the first bridging metal plate in the installation groove is arranged in the waist-shaped hole in a penetrating mode.
Further, the first bridge module is disposed longitudinally and transversely along the side of the main layer insulation module of the planar insulation module, and the first bridge module disposed longitudinally or transversely along the side of the main layer insulation module of the planar insulation module spans the main layer insulation modules of the two planar insulation modules.
Further, the end parts of the first bridging modules which are longitudinally and transversely arranged along the side surfaces of the main layer insulating modules of the plane insulating modules are also provided with second bridging modules.
Further, the first bridging module is also provided with second bridging metal plates, the second bridging metal plates are arranged along the direction perpendicular to the first bridging metal plates, and the second bridging metal plates and the first bridging metal plates are alternately arranged at intervals; the second bridging module is also provided with a third bridging metal plate.
Further, the step surfaces between the two adjacent corner area insulation modules are also provided with corner area bridging modules, and the corner area bridging modules correspond to the main layer insulation modules of the two corner area insulation modules and have the same cross-sectional shape.
Further, a rigid secondary screen is prefabricated and installed between the primary insulating module and the secondary insulating module, and the rigid secondary screen covers one surface, close to the primary insulating module, of the secondary insulating module.
Further, a flexible secondary screen is further arranged on the step surface between the adjacent planar insulating modules or the step surface between the adjacent planar insulating modules and the two-face corner region insulating modules, and the flexible secondary screen spans over the edge covered on the rigid secondary screen and is in bonding connection with the rigid secondary screen.
Further, the side of the insulating module of sublayer still is equipped with fixed cushion mounting groove, installs fixed cushion in the fixed cushion mounting groove, and the anchor assembly setting is between adjacent planar insulating module, between the insulating module in adjacent two-sided angle district and between the insulating module in adjacent planar insulating module and two-sided angle district, and the anchor assembly includes cardboard, stock base, and stock base is fixed on hull structure, and stock base is connected to the one end of stock, and the cardboard is connected to the other end of stock, cardboard edge overlap joint blocks fixed cushion.
Further, an elastic displacement allowance for the movement of the clamping plate is reserved between the clamping plate and the anchor rod along the length direction of the anchor rod, and the clamping plate can displace relative to the anchor rod within the elastic displacement allowance range.
Further, the middle part of the clamping plate is provided with a through hole, the end part of the anchor rod passes through the through hole and is connected with a locking cap in a threaded fit manner, an elastic disc sleeved outside the anchor rod is further arranged between the locking cap and the clamping plate, and the elastic disc is limited between the locking cap and the clamping plate.
Further, a filling block is arranged above the clamping plate, and the filling block is filled above the clamping plate to fill the area above the clamping plate to the rigid secondary screen wall area.
Further, an adjusting module for installing the filling block is arranged between the filling block and the clamping plate.
The invention also provides an LNG ship with the thin film type cargo tank, wherein the thin film type cargo tank is provided with the containment system, and the surface of the main layer insulation module of the containment system is also covered with corrugated plates.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the invention, the main layer insulating module and the secondary layer insulating module are prefabricated into an integrated structure, so that the rapid installation of a construction site is facilitated, and the integrated structure is anchored on a ship body structure through the anchoring piece, so that the subsequent maintenance, disassembly and replacement of the enclosure system are facilitated.
(2) The tip of the first bridging metal sheet on the first bridging module extends beyond first bridging module, and first bridging metal sheet can play fixed effect to first bridging module when installing first bridging module, compares and need not to set up frock etc. in addition with prior art and pressfitting first bridging module, dislocation before avoiding first bridging module bonding firmly guarantees the validity of bonding.
(3) When installing the buckled plate on the insulating module of main layer, current installation anchor strip on the insulating module of main layer, with buckled plate and anchor strip welded connection again, just need set up stress relief groove on the insulating module of main layer to every ripple of buckled plate. According to the method, the corrugated plate is welded with the first bridging metal plate on the first bridging module, the second bridging metal plate and the third bridging metal plate on the second bridging module, and the stress release grooves are formed in the main layer insulation module for each corrugated plate without the corrugated plate, so that the construction efficiency is improved.
(4) The arrangement of the penetrating type gas replacement seam and the non-penetrating type gas replacement seam in the application can ensure that inert gas flows when inert gas is filled between the main layer insulation modules of the enclosure system, so that a dead zone of gas flow is avoided, and in addition, the stress of the main layer insulation modules can be released to a certain extent through the penetrating type gas replacement seam and the non-penetrating type gas replacement seam.
(5) Because the existing heat insulation material is relatively better in heat insulation effect as the density is smaller, the invention decomposes the bearing pressure from the cargo tank in the direction vertical to the three bearing surfaces through the three bearing surfaces of the two-sided corner insulation module, effectively avoids the problem that the bearing pressure of the corner area is too concentrated, and can reduce the strength requirement on the two-sided corner insulation module, thereby using the material with better heat insulation effect and relatively smaller density.
(6) According to the invention, the stress of the ship body structure can be effectively absorbed through the arrangement of the connecting seam, and the deformation resistance of the two-sided corner insulation module is enhanced; the shape setting of the insulating module of sublayer in the middle part of the corner region can also increase the effective thickness of the included angle region of the bulkhead, promote the heat insulation effect of the corner region position, and avoid the cold deformation of the bulkhead at the corner region position.
Drawings
Fig. 1 is a schematic view of a planar insulating module structure according to the present invention.
Fig. 2 is an exploded view of a planar main layer insulation module structure according to the present invention.
Fig. 3 is an exploded view of a planar sub-layer insulation module structure according to the present invention.
Fig. 4 is a schematic view of a dihedral corner region insulation module structure according to the present invention.
Fig. 5 is an exploded view of the main insulating layer module structure in the corner area according to the present invention.
Fig. 6 is an exploded view of the corner region sublayer insulation module structure according to the present invention.
FIG. 7 is a schematic view of the structure of the anchor according to the present invention.
Fig. 8 is a schematic diagram illustrating installation of a first bridge module, a second bridge module, and a third bridge module according to the present invention.
Fig. 9 is a schematic plan view of a first bridging sheet metal mounting in accordance with the present invention.
Fig. 10 is a schematic view of the attachment of the present invention.
Fig. 11 is a schematic diagram of an arrangement of a first bridge module according to the present invention.
Fig. 12 is a schematic diagram of another arrangement of the first bridge module according to the present invention.
Fig. 13 is a schematic view of the containment system of the present invention mounted on a hull.
In the figure, 1, a plane main layer insulation module; 2. a planar sub-layer insulation module; 3. a planar rigid secondary screen; 4. a fixed cushion block mounting groove; 5. fixing the cushion block; 6. corner region main layer insulation module; 7. corner region sublayer insulation modules; 8. corner region rigid secondary screen; 9. an anchor; 10. a connecting joint; 11. filling the flat block; 12. a first bridge module; 13. a first bridging metal plate; 14. a mounting groove; 15. a connecting piece; 16. a second bridge module; 17. a second bridging metal plate; 18. a third bridging metal plate; 19. corner bridging module; 20. a flexible secondary barrier; 21. a bulkhead; 22. corrugated plates; 23. a triangular area insulation module; 24. corner region flexible secondary screen;
101. a first rectangular plate; 102. a first thermal block; 103. a second rectangular plate; 104. a second heat-insulating block; 105. a through-type gas replacement slit; 106. a non-penetrating gas displacement slit;
201. a third heat-insulating block; 202. a third rectangular plate;
601. a first support surface; 602. a second support surface; 603. a first plate body; 604. a first heat-retaining layer; 605. a second plate body; 606. a second heat-insulating layer; 607. a first auxiliary plate body; 608. a first auxiliary insulating layer; 609. a second auxiliary plate body; 610. a second auxiliary heat-insulating layer;
701. a third heat-insulating layer; 702. a third plate body; 703. a bottom surface; 704. a side support surface; 705. a sloped support surface;
901. a clamping plate; 902. a bolt; 903. an anchor rod base; 904. an elastic disc; 905. a locking cap; 906. a nut; 907. rectangular cushion blocks; 908. a top plate; 909. a threaded hole; 910. a bolt; 911. a spring; 912. an accommodation hole; 913. a spring washer; 914. a baffle; 915. an opening; 916. a protrusion;
1001. a rigid thermal insulation material; 1002. a flexible thermal insulation material;
1301. a waist-shaped hole;
1501. a connecting rod; 1502. and a connecting rod nut.
Detailed Description
The technical scheme of the invention is further described below with reference to the specific embodiments:
the thin film type liquid cargo containment system comprises a plane insulation module and a two-sided corner area insulation module, wherein the plane insulation module and the two-sided corner area insulation module respectively comprise a main layer insulation module and a secondary layer insulation module which are prefabricated into a whole, and the main layer insulation module forms a step surface above the secondary layer insulation module; the two-sided corner insulating module is provided with three supporting surfaces, and the plane insulating module and the two-sided corner insulating module are respectively anchored on a ship structure, such as a bulkhead; the first bridging module is arranged on the step surface, and is arranged on the step surface between the adjacent planar insulating modules or the step surface between the adjacent planar insulating modules and the two-sided corner region insulating modules; the first bridging module is provided with a first bridging metal plate, and the end part of the first bridging metal plate extends across to the adjacent planar insulating module or the two-sided corner insulating module relative to the first bridging module.
Specifically, as shown in fig. 1, the planar insulating module includes a planar main layer insulating module 1 and a planar sub-layer insulating module 2, the planar main layer insulating module 1 and the planar sub-layer insulating module 2 are respectively in rectangular block structures, the planar main layer insulating module 1 is prefabricated on the planar sub-layer insulating module 2 and is located at the center of the planar sub-layer insulating module 2, the side surface of the planar main layer insulating module 1 is spaced from the planar sub-layer insulating module 2, a step surface is formed on the planar sub-layer insulating module 2 at the spacing position, a planar rigid sub-screen 3 is also prefabricated between the planar main layer insulating module 1 and the planar sub-layer insulating module 2, and the planar rigid sub-screen 3 is bonded and covered on the planar sub-layer insulating module 2 during prefabrication, and then the planar main layer insulating module 1 is bonded on the planar rigid sub-screen 3.
The planar main layer insulation module is shown in fig. 2, and comprises a first rectangular plate 101, a first heat preservation block 102, a second rectangular plate 103 and a second heat preservation block 104 which are sequentially bonded, wherein the first rectangular plate 101, the first heat preservation block 102, the second rectangular plate 103 and the second heat preservation block 104 are bonded to form a rectangular module, the first rectangular plate 101 is provided with a penetrating type gas replacement slit 105 penetrating the plate thickness, one surface of the first heat preservation block 102, which is close to the first rectangular plate 101, is provided with a non-penetrating type gas replacement slit 106 corresponding to the penetrating type gas replacement slit 105, and the penetrating type gas replacement slit 105 and the non-penetrating type gas replacement slit 106 respectively present a crisscross form.
The planar sub-layer insulation module is shown in fig. 3, and comprises a third insulation block 201 and a third rectangular plate 202, wherein the third insulation block 201 is adhered to the third rectangular plate 202 to form a rectangular module, the planar rigid sub-screen 3 is adhered to and covered on the third insulation block 201, and the second insulation block 104 is adhered to the central position of the planar rigid sub-screen 3 on the third insulation block 201.
First 101, second 103, third 202 rectangular plates such as glued wood, first 102 and second 104, third 201 insulating blocks such as polyurethane foam.
The side of the third heat insulation block 201 is provided with a fixed cushion block mounting groove 4, the fixed cushion block mounting groove 4 penetrates through the thickness direction of the third heat insulation block, a fixed cushion block 5 is mounted in the fixed cushion block mounting groove 4, the fixed cushion block 5 is bonded in the fixed cushion block mounting groove 4 and bonded with the third rectangular plate 202, and the length of the fixed cushion block 5 extends to a position, close to the middle, of the fixed cushion block mounting groove 4 along the third rectangular plate 202.
The two-sided corner insulating module is shown in fig. 4, and comprises a corner main insulating module 6 and a corner sub-insulating module 7, wherein the corner main insulating module 6 is prefabricated on the corner sub-insulating module 7, a space is reserved between the side surface of the corner main insulating module 6 and the edge of the corner sub-insulating module 7, a step surface is formed on the corner sub-insulating module 7 by the space, a corner rigid secondary screen wall 8 is prefabricated between the corner main insulating module 6 and the corner sub-insulating module 7, the corner rigid secondary screen wall 8 is not paved at a corner bending position, a corner flexible secondary screen wall 24 is also installed on the corner rigid secondary screen wall 8 in order to ensure the integrity of the secondary screen wall, the corner rigid secondary screen wall 8 is in the form of a layer of aluminum foil sandwiched by two layers of glass fiber cloth, the corner rigid secondary screen wall 8 is in the form of a layer of two layers of glass fiber aluminum sandwiched sheets, the thickness of the aluminum sheets is larger than that of the aluminum foil, the corner rigid secondary screen wall 8 and the corner flexible secondary screen wall 24 are bonded on the corner sub-insulating module 7, and the corner rigid secondary screen wall 8 is prefabricated on the corner insulating module 6.
The main layer insulation module in the corner area is shown in fig. 5, and comprises a main layer insulation module in the middle of the corner area and auxiliary main layer insulation modules in the corner area, wherein the auxiliary main layer insulation modules in the corner area are arranged on two sides of the main layer insulation module in the middle of the corner area, a first supporting surface 601 is formed between the auxiliary main layer insulation modules in the corner area by the main layer insulation modules in the middle of the corner area, two second supporting surfaces 602 are formed by the auxiliary main layer insulation modules in the corner area by extending along the first supporting surfaces 601, and obtuse angles are formed between the second supporting surfaces 602 and the first supporting surfaces 601.
The main insulating module in the middle of the corner region comprises a first plate body 603, a first heat preservation layer 604, a second plate body 605 and a second heat preservation layer 606 which are sequentially arranged, wherein the first plate body 603, the first heat preservation layer 604, the second plate body 605 and the second heat preservation layer 606 respectively show a rectangular block structure, and the first plate body 603, the first heat preservation layer 604, the second plate body 605 and the second heat preservation layer 606 are bonded integrally.
The auxiliary main layer insulation module in the corner region comprises a first auxiliary plate body 607, a first auxiliary insulation layer 608, a second auxiliary plate body 609 and a second auxiliary insulation layer 610 which are sequentially arranged, the first auxiliary plate body 607, the first auxiliary insulation layer 608, the second auxiliary plate body 609 and the second auxiliary insulation layer 610 are bonded integrally, the side surface of the auxiliary main layer insulation module in the corner region corresponds to the side surface of the main layer insulation module in the middle part of the corner region to form an inclined surface, a connecting joint 10 is formed between the inclined surface of the auxiliary main layer insulation module in the corner region and the side surface of the main layer insulation module in the middle part of the corner region, and flexible insulation materials are filled in the connecting joint 10. During installation, the corner auxiliary main layer insulating module and the corner middle main layer insulating module are respectively bonded on the corner secondary layer insulating module 7, and then the connecting joint 10 between the inclined plane of the corner auxiliary main layer insulating module and the side surface of the corner middle main layer insulating module is filled with flexible heat insulating materials, such as glass wool.
The corner region sub-layer insulation module 7 is shown in fig. 6, and comprises a corner region middle sub-layer insulation module and a corner region auxiliary sub-layer insulation module, wherein the corner region auxiliary sub-layer insulation module is arranged on two sides of the corner region middle sub-layer insulation module, a connecting seam 10 is also arranged between the corner region middle sub-layer insulation module and the corner region auxiliary sub-layer insulation module, and the connecting seam 10 is filled with heat insulation materials. The connecting seam 10 between the corner region middle main layer insulating module and the corner region auxiliary main layer insulating module is arranged corresponding to the connecting seam 10 between the corner region middle sub-layer insulating module and the corner region auxiliary sub-layer insulating module.
The middle sublayer insulating module in the corner region comprises a third heat preservation layer 701 and a third plate body 702, wherein the third heat preservation layer 701 is in a pentagonal prism structure, two end faces of the third heat preservation layer 701 are pentagons, two adjacent side faces form two bottom faces 703 in five side faces of the third heat preservation layer 701, the third plate body 702 is attached to the two bottom faces 703, two side supporting faces 704 are respectively formed on the side faces adjacent to the two bottom faces 703, the side supporting faces 704 are perpendicular to the bottom faces 703, and inclined supporting faces 705 are formed on the side faces connected between the two side supporting faces 704.
The first board body, the second board body and the third board body are glued board, and the first heat preservation layer, the second heat preservation layer and the third heat preservation layer are polyurethane heat preservation layers.
The included angle between the two bottom surfaces 703 matches the included angle of the corner region of the bulkhead, for example, the included angle of the bulkhead is 90 degrees, and the two bottom surfaces 703 are perpendicular to each other; if the angle of the bulkhead is 135, then the angle between the two bottom surfaces 703 is 135. Where 90 ° and 135 ° are common bulkhead angles, but are not limited to these two angles.
The corner auxiliary sub-layer insulation module comprises a third auxiliary insulation layer 706 and a third auxiliary plate body 707, wherein the third auxiliary insulation layer 706 is in a cuboid structure, the third auxiliary plate body 707 is attached to the bottom of the third auxiliary insulation layer 706, and a connecting joint 10 is formed between the side surface of the third auxiliary insulation layer 706 and the side supporting surface 704 of the third insulation layer 701. The side of the third auxiliary insulating layer 706 has the same shape and size as the side support surface 704.
The third plate 702 and the third auxiliary plate 707 are finally mounted on the hull structure, and the third plate 702 and the third auxiliary plate 707 may be fabricated in a spliced manner, or the third plate 702 and the third auxiliary plate 707 may be fabricated integrally.
The connecting seam 10 between the corner region middle sub-layer insulating module and the corner region auxiliary sub-layer insulating module is perpendicular to the ship body structure, the connecting seam 10 is filled with a rigid heat insulating material and a flexible heat insulating material respectively, the connecting seam 10 between the corner region middle sub-layer insulating module and the corner region auxiliary sub-layer insulating module is filled with a section of flexible heat insulating material 1002 close to the corner region main layer insulating module, and the connecting seam in the remaining region is filled with the rigid heat insulating material 1001. A flexible insulation 1002, such as glass wool, a rigid insulation 1001, such as wood, and the rigid insulation 1001 is bonded between the side support surface 704 of the third insulation 701 and the side of the third auxiliary insulation 706.
The side of the auxiliary sub-layer insulating module in the corner area is also provided with a fixed cushion block mounting groove 4, the fixed cushion block mounting groove 4 penetrates through the thickness direction of the third auxiliary insulating layer 706, a fixed cushion block 5 is mounted in the fixed cushion block mounting groove 4, the fixed cushion block 5 is bonded in the fixed cushion block mounting groove 4 and bonded with the third auxiliary plate body 707, and the length of the fixed cushion block 5 extends to a position, close to the middle, of the fixed cushion block mounting groove 4 along the third auxiliary plate body 707.
The plane insulation module and the two-sided corner insulation module are respectively anchored on the ship body structure through anchoring pieces, the anchoring pieces 9 are shown in fig. 7, each anchoring piece 9 comprises a clamping plate 901, an anchor rod 902 and an anchor rod base 903, through holes are formed in the middle of each clamping plate 901, external thread ends are respectively arranged at two ends of each anchor rod 902, a locking cap 905 is mounted on each external thread end of each upper end of each anchor rod 902 after penetrating through the corresponding through hole of each clamping plate 901, each locking cap 905 is in threaded fit connection with each threaded end of each anchor rod 902, an elastic disc 904 is sleeved outside each anchor rod between each locking cap 905 and each clamping plate 901, and each elastic disc 904 is limited between each locking cap 905 and each clamping plate 901. The nut 906 is embedded in the anchor rod base 903, the anchor rod base 903 is welded on the ship structure, the anchor rod 902 extends between adjacent planar sub-layer insulating modules, adjacent corner region sub-layer insulating modules or between the planar sub-layer insulating modules and the corner region sub-layer insulating modules, two ends of the clamping plate 901 are respectively clamped on the corresponding fixing cushion blocks 5, and accordingly the planar insulating modules and the two-sided corner region insulating modules are respectively anchored on the ship structure. When the sub-layer insulation module (including the planar sub-layer insulation module and the corner sub-layer insulation module) generates expansion and contraction changes in the thickness direction of the sub-layer insulation module due to factors such as temperature and pressure, the clamping plate 901 can be adaptively adjusted along the displacement of the anchor rod 902, the elastic disc 904 provides elastic displacement allowance for the displacement adjustment of the clamping plate 901, and the clamping plate 901 can be displaced relative to the anchor rod 902 within the elastic displacement allowance range.
Preferably, the clamping plate 901 is inserted into the fixed cushion block mounting groove 4 in cooperation with the width of the fixed cushion block mounting groove 4 when the clamping plate 901 clamps the fixed cushion block 5, so that the clamping plate 901 can move along the fixed cushion block mounting groove 4 when being adjusted along the displacement of the anchor rod 902, and the clamping plate 901 can be prevented from deflecting relative to the anchor rod 902.
The leveling block 11 is further installed above the clamping plate 901, the leveling block 11 is filled above the clamping plate 901 to level the area above the clamping plate 901 to a rigid secondary screen wall area, the leveling block 11 is a polyurethane foam block, the problem of flatness possibly existing during installation of the leveling block 11 is considered, an adjusting module used for installing the leveling block is further arranged between the leveling block 11 and the clamping plate 901, and flatness adjustment of the leveling block 11 is achieved through the adjusting module.
Specifically, the adjusting module comprises a rectangular cushion block 907 and a top flat plate 908, a cavity for locking the cap 905 and accommodating the elastic disc 904 is arranged in the middle of the lower end of the rectangular cushion block 907, through holes are formed in four corners of the rectangular cushion block 907, threaded holes 909 are formed in four corners of the clamping plate 901 corresponding to the through holes in four corners of the rectangular cushion block 907, a bolt 910 is respectively arranged in four corners of the top flat plate 908, the top flat plate 908 and the rectangular cushion block 907 are arranged above the clamping plate 909 through the bolt 910, and the bolt 910 is in threaded fit with the threaded holes 909 in four corners of the clamping plate 901. A spring 911 is sleeved outside the bolt 910 between the top flat plate 908 and the rectangular cushion block 907, and an adjusting space for filling the installation of the block 11 is formed between the top flat plate 908 and the upper end surface of the rectangular cushion block 907 through the spring 911. Leveling of the installation position of the screed 11 is achieved by changing the threading of the bolts 910, eventually placing the screed 11 on the top deck 908, with the springs 911 remaining in compression at all times. Preferably, the middle part of the rectangular cushion block 907 is also provided with a containing hole 912 corresponding to the upper end of the anchor rod 902, and the upper end of the anchor rod 902 is penetrated in the containing hole 912.
Preferably, a spring washer 913 may also be mounted on the exterior of the bolt 910 above the top deck 908 to prevent loosening of the bolt 910.
Preferably, the upper end of the locking cap 905 is further provided with a baffle 914 for preventing the locking cap 905 from loosening relative to the external thread end at the upper end of the anchor rod 902, the external thread end at the upper end of the anchor rod 902 is inserted into the accommodating hole 912 after passing through the middle of the baffle 914, the locking cap 905 abuts against the baffle 914, and the baffle 914 is attached in the cavity of the rectangular cushion block 907.
Preferably, the baffle 914 is clamped into the cavity, so as to prevent the baffle 914 from deflecting relative to the cavity, in this embodiment, openings 915 are formed on four sides of the cavity of the rectangular cushion 907, protrusions 916 are respectively formed on four sides of the baffle 914 corresponding to the openings 915 of the rectangular cushion, and the protrusions 916 of the baffle are clamped into the openings 915 of the cavity so as to prevent the baffle 914 from deflecting relative to the rectangular cushion 907.
After the top flat plate 908 is leveled, the leveling blocks 11 are mounted on the top flat plate 908 in a glue bonding manner to level the fixed cushion block mounting grooves 4.
The first bridging module 12 is further arranged between the adjacent planar insulating modules and the two-sided corner region insulating modules, as shown in fig. 8, the first bridging module 12 is arranged on the step surface, the first bridging module 12 is provided with a first bridging metal plate 13, two ends of the first bridging metal plate 13 extend out relative to the first bridging module 12, the edges of the planar main layer insulating module 1 and the edges of the corner region main layer insulating module 6 are respectively provided with a mounting groove 14 corresponding to the ends of the first bridging metal plate, the ends of the first bridging metal plate 13 are inserted into the mounting grooves 14, the ends of the first bridging metal plate 13 are provided with waist-shaped holes 1301, the length directions of the waist-shaped holes are arranged along the length directions of the first bridging metal plate 13, and connecting pieces 15 for mounting the ends of the first bridging metal plate in the mounting grooves are penetrated in the waist-shaped holes.
The connecting member 15 includes a link 1501, a link nut 1502 threadedly engaged with the link.
For the connecting piece installed in the installation groove 14 of the planar main layer insulation module 1, the connecting rod sequentially passes through the waist-shaped hole at the end part of the first bridging metal plate 13, the first rectangular plate 101, the first heat preservation block 102 and the second rectangular plate 103, the connecting rod nut 1502 is installed on the lower end surface of the second rectangular plate 103, the connecting rod 1501 passes through one end of the second rectangular plate 103 and is in threaded fit connection with the connecting rod nut 1502, the connecting rod nut 1502 is embedded in the opening of the lower end surface of the second rectangular plate 103, the upper end surface of the second heat preservation block 104 is correspondingly provided with an adapting hole adapting to the end part of the connecting rod 1501, and the connecting rod 1501 passes through the end part of the connecting rod nut 1502 and is inserted into the adapting hole as shown in fig. 10.
For the connecting piece installed in the installation groove of the corner main layer insulation module 6, the connecting rod sequentially passes through the waist-shaped hole at the end part of the first bridging metal plate 13, the first auxiliary plate body 607, the first auxiliary insulation layer 608 and the second auxiliary plate body 609, the connecting rod nut 1502 is installed on the lower end surface of the second auxiliary plate body 609, one end of the connecting rod 1501 passing through the second auxiliary plate body 609 is in threaded fit connection with the connecting rod nut 1502, the connecting rod nut 1502 is embedded in the opening on the lower end surface of the second auxiliary plate body 609, an adapting hole matched with the end part of the connecting rod 1501 is correspondingly arranged on the upper end surface of the second auxiliary insulation layer 610, the connecting rod 1501 passes through the end part of the connecting rod nut 1502 and is inserted into the adapting hole, and the connecting piece in the installation groove 14 of the plane main layer insulation module in the form of reference fig. 10 is installed.
The first bridge modules 12 are respectively disposed along the length direction and the width direction of the planar main layer insulation module 1, and the present embodiment provides two types of first bridge modules.
As shown in fig. 11, the first bridge module 12 has the same length as the length of the planar main layer insulation module 1 in the longitudinal direction of the planar main layer insulation module 1, and the first bridge module 12 has the same length as the width of the planar main layer insulation module 1 in the width direction of the planar main layer insulation module 1. The end of the first bridge module 12 that receives both the longitudinal and transverse directions is provided with a second bridge module 16.
In another form of the first bridge module, as shown in fig. 8 and 12, the first bridge module 12 has the same length as the length of the planar main layer insulation module 1 in the length direction of the planar main layer insulation module 1, and the length of the first bridge module 12 spans two planar main layer insulation modules 1 in the width direction of the planar main layer insulation module 1. The end of the first bridge module 12 that receives both the longitudinal and transverse directions is provided with a second bridge module 16.
Compared with the arrangement of the first bridge module in fig. 11, the arrangement of the first bridge module in fig. 12 increases the contact area between the bridge module and the planar sub-layer insulating module, and the firmness of the bridge module is improved.
The first bridge module 12 is provided with a second bridge metal plate 17 in addition to the first bridge metal plate 13, the second bridge metal plate 17 being arranged in a direction perpendicular to the first bridge metal plate 13, the second bridge metal plate 17 and the first bridge metal plate 13 being alternately arranged at intervals; the second bridging module 16 is further provided with a third bridging metal plate 18, and the third bridging metal plate 18 presents a cross shape, or the third bridging metal plate presents a cross shape, or the third bridging metal plates are spliced and combined to form a cross shape.
The corner bridging modules 19 are further arranged on the step surfaces between the two adjacent corner insulating modules, the corner bridging modules 19 correspond to the corner main layer insulating modules 6 and have the same cross section shape, and the corner bridging modules 19 can be understood to be a section of the corner main layer insulating modules 6.
In the enclosure system, there is an included angle between two bulkheads, and there is also an included angle between three bulkheads, that is, there is a triangular area, and the triangular area also needs to be provided with an insulation module. In the triangular region, the triangular region insulating modules extend from three directions and are close, and the triangular region insulating modules are installed at the close positions to bear the triangular region insulating modules in the three directions. The triangular section insulating module 23 also includes a main layer insulating module and a sub layer insulating module, and the triangular section insulating module in each direction has three supporting surfaces, and since the triangular section insulating module 23 needs to accept the triangular section insulating modules in three directions, the triangular section insulating module 23 forms six supporting surfaces, as shown in fig. 13. The edge of the sub-layer insulating module of the triangular region insulating module corresponds to the fixed cushion block mounting groove of the side surface of the auxiliary sub-layer insulating module of the angular region, the fixed cushion block mounting groove is also arranged, and the fixed cushion block is mounted in the fixed cushion block mounting groove and is fixed through an anchoring piece. And a triangular area rigid secondary screen wall is arranged between the primary layer insulating module and the secondary layer insulating module of the triangular area insulating module.
Before the first bridge module 12, the second bridge module 16 and the corner bridge module 19 are installed, a flexible secondary screen 20 is installed across the planar rigid secondary screen 3 of the adjacent planar sub-layer insulation module 2, a flexible secondary screen 20 is also installed across the planar rigid secondary screen 3 of the adjacent planar sub-layer insulation module 2 and the corner rigid secondary screen 8 of the corner sub-layer insulation module 7, and a flexible secondary screen 20 is also installed across the corner rigid secondary screen 8 of the adjacent corner sub-layer insulation module 7. The plane rigid secondary screen 3 adopts a structure form that two layers of glass fiber cloth are clamped with one layer of aluminum sheet, the flexible secondary screen 20 adopts a structure form that two layers of glass fiber cloth are clamped with one layer of aluminum sheet, the thickness of the aluminum sheet is larger than that of the aluminum sheet, the flexible secondary screen 20 is fixedly bonded with the edge of the plane rigid secondary screen 3 or the edge of the corner region rigid secondary screen 8 in a bonding mode, and then the first bridging module 12, the second bridging module 16 and the corner region bridging module 19 are bonded above the flexible secondary screen 20. Complete shielding space is formed by the flexible secondary screen 20 matched with the planar rigid secondary screen 3 and the corner rigid secondary screen 8, and the flexible secondary screen also provides a change space for the adjacent planar sub-layer insulation modules, the adjacent corner sub-layer insulation modules and the adjacent planar sub-layer insulation modules and the corner sub-layer insulation modules to expand with heat and contract with cold.
A corrugated plate 22 is also mounted over the main layer insulation module and is welded to the first bridging metal plate, the second bridging metal plate and the third bridging metal plate.
The present embodiment also provides an LNG ship having a thin film type cargo tank, as shown in fig. 13, in which a containment system is installed, the surface of a main layer insulation module of the containment system is further covered with corrugated plates 22, and the containment system is installed on a hull structure, such as a bulkhead 21, through anchors.
The first, second and third embodiments are mainly for distinguishing the structure for convenience of description, and the structure itself is not particularly limited.
The present embodiment is further illustrative of the present invention and is not to be construed as limiting the invention, and those skilled in the art can make no inventive modifications to the present embodiment as required after reading the present specification, but only as long as they are within the scope of the claims of the present invention.

Claims (19)

1. The thin film type liquid cargo containment system is characterized by comprising a plane insulation module and a two-sided corner area insulation module, wherein the plane insulation module and the two-sided corner area insulation module respectively comprise a main layer insulation module and a secondary layer insulation module which are prefabricated into a whole, and the main layer insulation module forms a step surface above the secondary layer insulation module; the two-sided corner area insulating module is provided with three supporting surfaces, the plane insulating module and the two-sided corner area insulating module are respectively anchored on the ship body structure, a first bridging module is arranged on the step surface, and the first bridging module is arranged on the step surface between the adjacent plane insulating modules or the step surface between the adjacent plane insulating modules and the two-sided corner area insulating modules; the first bridging module is provided with a first bridging metal plate, and the end part of the first bridging metal plate extends across to the adjacent planar insulating module or the two-sided corner insulating module relative to the first bridging module.
2. The thin film type liquid cargo containment system according to claim 1, wherein the main layer insulation modules of the two-sided corner region insulation module comprise a corner region middle main layer insulation module and corner region auxiliary main layer insulation modules, the corner region auxiliary main layer insulation modules are arranged on two sides of the corner region middle main layer insulation module, a first supporting surface is formed between the corner region auxiliary main layer insulation modules by the corner region middle main layer insulation modules, two second supporting surfaces are formed by extending the side surfaces of the corner region auxiliary main layer insulation modules along the first supporting surfaces, and the second supporting surfaces form obtuse included angles relative to the first supporting surfaces.
3. The thin film type liquid cargo containment system according to claim 2, wherein the sub-layer insulation modules of the two-sided corner region insulation modules comprise corner region middle sub-layer insulation modules and corner region auxiliary sub-layer insulation modules, the corner region auxiliary sub-layer insulation modules are arranged on two sides of the corner region middle sub-layer insulation modules, connecting joints are arranged between the corner region middle sub-layer insulation modules and the corner region auxiliary sub-layer insulation modules, and heat insulation materials are filled in the connecting joints.
4. A thin film liquid cargo containment system according to claim 3 wherein said connection seam is disposed perpendicular to the hull structure; the heat insulation material comprises a flexible heat insulation material and a rigid heat insulation material, wherein a section of the main layer insulation module, which is close to the two-sided corner region insulation module, in the connecting joint is filled with the flexible heat insulation material, the rest part of the connecting joint is filled with the rigid heat insulation material, and the rigid heat insulation material is respectively in bonding connection with the middle sub-layer insulation module and the corner region auxiliary sub-layer insulation module.
5. The thin film type liquid cargo containment system according to claim 4, wherein a connecting joint is also arranged between the corner region middle main layer insulation module and the corner region auxiliary main layer insulation module, and a flexible heat insulation material is filled in the connecting joint between the corner region middle main layer insulation module and the corner region auxiliary main layer insulation module; the connecting seam between the corner region middle main layer insulating module and the corner region auxiliary main layer insulating module corresponds to the connecting seam between the corner region middle sub-layer insulating module and the corner region auxiliary sub-layer insulating module.
6. The thin film type liquid cargo containment system according to claim 1, wherein the edges of the main layer insulation modules of the planar insulation modules and the dihedral corner region insulation modules are provided with mounting grooves corresponding to the ends of the first bridging metal plates of the first bridging modules, and the ends of the first bridging metal plates are inserted into the mounting grooves of the adjacent planar insulation modules or the dihedral corner region insulation modules.
7. The thin film type liquid cargo containment system according to claim 6, wherein the end of the first bridging metal plate is provided with a waist-shaped hole, the length direction of the waist-shaped hole is along the length direction of the first bridging metal plate, and a connecting piece for installing the end of the first bridging metal plate in the installation groove is penetrated in the waist-shaped hole.
8. The thin film liquid cargo containment system of claim 7 wherein the first bridge module is disposed longitudinally and transversely along the sides of the main layer insulation modules of the planar insulation modules, the first bridge module disposed longitudinally or transversely along the sides of the main layer insulation modules of the planar insulation modules spanning the main layer insulation modules of both planar insulation modules.
9. The thin film liquid cargo containment system of claim 8 wherein the ends of the first bridging modules disposed longitudinally and transversely along the sides of the main layer insulation modules of the planar insulation modules are further provided with second bridging modules.
10. The thin film liquid cargo containment system according to claim 9, wherein the first bridge module is further provided with a second bridge metal plate, the second bridge metal plate is arranged along a direction perpendicular to the first bridge metal plate, and the second bridge metal plate and the first bridge metal plate are alternately arranged at intervals; and a third bridging metal plate is further arranged on the second bridging module.
11. The thin film liquid cargo containment system of claim 10 wherein corner bridging modules are further provided on the step surfaces between adjacent said two-sided corner insulation modules, said corner bridging modules having the same cross-sectional shape as the main layer insulation modules of the two-sided corner insulation modules.
12. The thin film liquid cargo containment system of claim 1 wherein a rigid secondary barrier is also premade between the primary and secondary insulating modules, the rigid secondary barrier covering a face of the secondary insulating module adjacent the primary insulating module.
13. The thin film liquid cargo containment system of claim 12 wherein the step between adjacent planar insulating modules or the step between adjacent planar insulating modules and the two-sided corner insulating modules is further provided with a flexible secondary barrier bonded to the rigid secondary barrier across the edge overlying the rigid secondary barrier.
14. The thin film type liquid cargo containment system according to claim 1, wherein the side surface of the sub-layer insulating module is further provided with a fixed cushion block mounting groove, a fixed cushion block is mounted in the fixed cushion block mounting groove, anchoring pieces are respectively arranged between adjacent planar insulating modules, between adjacent two-sided corner area insulating modules and between the adjacent planar insulating modules and the two-sided corner area insulating modules, each anchoring piece comprises a clamping plate, an anchor rod and an anchor rod base, the anchor rod base is fixed on a ship body structure, one end of the anchor rod is connected with the anchor rod base, the other end of the anchor rod is connected with the clamping plate, and the edge of the clamping plate is lapped and clamped with the fixed cushion block.
15. The thin film liquid cargo containment system of claim 14 wherein a margin of elastic displacement is provided between the catch plate and the anchor rod along the length of the anchor rod for movement of the catch plate, the catch plate being displaceable relative to the anchor rod within the margin of elastic displacement.
16. The thin film liquid cargo containment system according to claim 15, wherein the middle part of the clamping plate is provided with a through hole, the end part of the anchor rod passes through the through hole and is connected with a locking cap in a threaded fit manner, an elastic disc sleeved outside the anchor rod is further arranged between the locking cap and the clamping plate, and the elastic disc is limited between the locking cap and the clamping plate.
17. The thin film liquid cargo containment system of claim 16 wherein a fill block is further provided above the clamp plate, the fill block filling the upper region of the clamp plate to fill the upper region of the clamp plate to the rigid secondary screen region.
18. The thin film liquid cargo containment system of claim 17 wherein an adjustment module for mounting the filling block is further provided between the filling block and the clamping plate.
19. An LNG ship with a membrane cargo tank, characterized in that the membrane cargo tank is fitted with a containment system according to any one of claims 1-18, the surface of the main insulation module of which is also covered with corrugated plates.
CN202410251292.XA 2024-03-06 2024-03-06 Film type liquid cargo containment system and LNG ship Pending CN117818820A (en)

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