CN117585120A - Mounting method of two-sided corner area arrangement structure of thin-film type enclosure system - Google Patents
Mounting method of two-sided corner area arrangement structure of thin-film type enclosure system Download PDFInfo
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- CN117585120A CN117585120A CN202311521262.8A CN202311521262A CN117585120A CN 117585120 A CN117585120 A CN 117585120A CN 202311521262 A CN202311521262 A CN 202311521262A CN 117585120 A CN117585120 A CN 117585120A
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000009413 insulation Methods 0.000 claims abstract description 195
- 239000010408 film Substances 0.000 claims abstract description 119
- 230000000149 penetrating effect Effects 0.000 claims abstract description 65
- 230000007704 transition Effects 0.000 claims abstract description 61
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000003860 storage Methods 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 116
- 239000002184 metal Substances 0.000 claims description 69
- 238000004321 preservation Methods 0.000 claims description 57
- 238000009434 installation Methods 0.000 claims description 33
- 230000003014 reinforcing effect Effects 0.000 claims description 25
- 230000006835 compression Effects 0.000 claims description 24
- 238000007906 compression Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 18
- 239000003292 glue Substances 0.000 claims description 17
- 239000003822 epoxy resin Substances 0.000 claims description 13
- 238000004021 metal welding Methods 0.000 claims description 13
- 229920000647 polyepoxide Polymers 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 12
- 239000007769 metal material Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 239000010964 304L stainless steel Substances 0.000 claims description 4
- 229910001374 Invar Inorganic materials 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000011120 plywood Substances 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims 2
- 230000002787 reinforcement Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000005056 compaction Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
- B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
- B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
- B63B73/43—Welding, e.g. laser welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
- B63B73/46—Gluing; Taping; Cold-bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
- B63B73/49—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods by means of threaded members, e.g. screws, threaded bolts or nuts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The embodiment of the invention provides a mounting method of a two-sided corner area arrangement structure of a film type enclosure system, wherein the film type enclosure system comprises a main layer film layer, a fastening clamping plate, a main layer insulating layer, a sub-layer film layer and a sub-layer insulating layer which are sequentially connected and fixed on a ship body structure through penetrating fasteners, the main layer film layer, the main layer insulating layer, the sub-layer film layer and the sub-layer insulating layer are enclosed to form a low-temperature liquid cargo storage tank for accommodating ultralow-temperature medium, and the main layer film layer is in contact with the ultralow-temperature medium; the method for installing the thin-film enclosure system comprises the following steps of: and installing a distance plate and studs for positioning the distance plate of the dihedral angle region plane transition sub-insulation module and the dihedral angle region sub-insulation module of the sublayer on the bulkhead of the hull structure according to the set scribing, and further installing the dihedral angle region plane transition sub-insulation module and the dihedral angle region sub-insulation module and other modules.
Description
Technical Field
The invention relates to the technical field of equipment for transporting and storing low-temperature liquid, in particular to a method for installing a two-sided corner area arrangement structure of a thin-film enclosure system.
Background
In transporting a gas such as natural gas or ethane gas, it is common to cool the gas to a low temperature and transport the liquefied gas for more economical long-distance transportation. The volume of the liquefied gas is greatly reduced, and the transportation cost is reduced. The liquefied cryogenic liquid is stored and transported by a special cryogenic liquid cargo storage tank.
In the current shipbuilding industry, cryogenic liquid cargo containment systems are primarily concerned with the manufacturing of LNG vessels. For LNG vessels, the international bulk transport liquefied gas vessel construction and equipment regulations (IGC regulations) define 4 broad classes of containment systems, type a, type B, type C and thin film containment systems, respectively. The thin film type enclosure system is widely applied due to the advantages of high cabin capacity utilization rate, good heat preservation performance, small wind resistance area and the like.
The existing thin film containment system technology mainly comprises Mark III type and NO 96 type, which are both from French GTT company. However, for the NO 96 type, as the main layer corner insulating modules and the secondary layer corner insulating modules are arranged in an up-down overlapping mode, gaps between the main layer corner insulating modules and the secondary layer corner insulating modules are directly communicated to the ship body structure, and although insulating materials such as glass wool are uniformly distributed at the gaps, larger heat leakage exists at the gaps; for Mark III type, as the heat insulation modules of the two corner areas of the main layer, the secondary insulation layer modules of the two corner areas and the secondary film layer are mutually fixed and adhered into a whole through glue, and are integrally fixed on the ship body structure through epoxy resin, the relative movement between the primary insulation modules and the secondary insulation modules of the two corner areas is limited, and the overall ship body movement resistance and liquid cargo sloshing resistance are poor; in addition, due to the fact that a large amount of glue is used, the construction period is long, and due to the fact that requirements on construction environment (humidity and temperature) and working procedures are strict, the period of the ship is prolonged.
Disclosure of Invention
In view of the foregoing problems in the prior art, an embodiment of the present invention provides a method for installing a two-sided corner area arrangement structure of a thin film type enclosure system for accommodating an ultra-low temperature medium, including a main layer thin film layer, a fastening clip, a main layer insulating layer, a sub layer thin film layer and a sub layer insulating layer sequentially connected and fixed to a hull structure (a hull steel plate) by penetrating fasteners, that is, the main layer thin film layer and the sub layer thin film layer are provided therebetween with the main layer insulating layer and the fastening clip, and the sub layer thin film layer and the hull structure are provided therebetween with the sub layer insulating layer; the main layer film layer, the fastening clamping plate, the main layer insulating layer, the sub-layer film layer and the sub-layer insulating layer are all fixed on the ship structure through penetrating fasteners, meanwhile, the main layer insulating structure and the gap between the main layer film layer and the sub-layer film layer form a main layer shielding space, the sub-layer insulating structure and the gap between the sub-layer film layer and the ship structure form a sub-shielding space, the double-layer sealed ultralow-temperature medium storage carrier is effectively built, and the problems of storage and leakage prevention of ultralow-temperature mediums are solved.
The embodiment of the invention provides a mounting method of a two-sided corner area arrangement structure of a film type enclosure system, wherein the film type enclosure system comprises a main layer film layer, a fastening clamping plate, a main layer insulating layer, a sub layer film layer and a sub layer insulating layer which are sequentially connected and fixed on a ship body structure through penetrating fasteners, the main layer film layer, the main layer insulating layer, the sub layer film layer and the sub layer insulating layer are enclosed to form a low-temperature liquid cargo storage tank for accommodating ultralow-temperature medium, and the main layer film layer is in contact with the ultralow-temperature medium; the corner area where two side surfaces meet in the thin film type enclosure system comprises a main layer dihedral corner area and a secondary layer dihedral corner area, and the installation method comprises the following steps:
Installing distance plates on bulkheads of the ship body structure according to set scribing lines and studs for positioning the dihedral zone plane transition secondary insulation modules of the dihedral zone and the distance plates on the dihedral zone secondary insulation modules;
the double-face corner area plane transition secondary insulation module and the double-face corner area secondary insulation module are respectively installed on a distance plate through penetrating fasteners, wherein studs penetrating through the distance plate extend into distance stud holes formed in heat insulation blocks of the double-face corner area plane transition secondary insulation module and the bottoms of installation notch grooves or extend into distance stud holes formed in the bottoms of step notch grooves of the double-face corner area secondary insulation module;
after the planar transition secondary insulation module of the dihedral corner region and the secondary insulation module of the dihedral corner region are installed, installing a secondary film layer, wherein the secondary film layer comprises a plurality of secondary films with preset sizes connected in a splicing mode, and in the corner region where two side surfaces are connected, the boundary of each secondary film is welded and fixed with a secondary welding plate or a secondary welding metal sheet of a second top plate arranged on the planar transition secondary insulation module of the dihedral corner region;
after the installation of the sub-layer film layers in the corner areas where the two side surfaces are connected, the installation of the main layer two-face corner area heat insulation and preservation modules of the main layer two-face corner areas is carried out, wherein each main layer two-face corner area heat insulation and preservation module is in compression connection with the upper sections of 4 penetrating fasteners, and the 4 penetrating fasteners arranged on the same main layer two-face corner area heat insulation and preservation module are respectively arranged at the four corners of the main layer two-face corner area heat insulation and preservation module; after the two-sided corner area heat insulation and preservation module of one main layer and the two-sided corner area heat insulation and preservation module of the other adjacent main layer and the two main layer insulating layer modules are installed in place at the same corner area, corresponding compression blocks penetrating through fasteners are installed at the corner area, the lower ends of the installed compression blocks are pressed on middle plates of the two-sided corner area heat insulation and preservation module of the two adjacent main layers and the two main layer insulating layer modules, and the installed compression blocks are fixedly connected and locked with the upper ends of cap rod structures of the corresponding penetrating fasteners;
The method comprises the steps of installing a fastening clamping plate, wherein the fastening clamping plate comprises a cross clamping plate and a straight clamping plate, grooves for installing a main layer welding metal sheet and through holes for installing penetrating fasteners are formed in the middle position of the cross clamping plate and the middle position of the straight clamping plate, the main layer welding metal sheet is provided with a center hole, and main layer welding plates for welding and fixing with a main layer film are fixedly arranged on four long edges of the cross clamping plate and two long edges of the straight clamping plate;
after the fastening clamping plate is installed, a main layer film layer is installed, the main layer film layer comprises a plurality of main layer films with preset sizes, the main layer films are connected in a splicing mode, and the boundary of each main layer film is welded and fixed with a main layer welding plate or a main layer welding metal sheet on the fastening clamping plate arranged on the main layer insulation module.
In some embodiments of the invention, the method further comprises, prior to installing the distance plate on the bulkhead of the hull structure according to the set score line:
scribing a bulkhead of the ship structure, and welding a welding base of the lower section part of the penetrating fastener at the position of the bulkhead for placing the penetrating fastener according to the scribing, wherein nuts are arranged in the welding base in advance before welding operation;
And installing a metal connecting rod fixedly connected with the welding base and penetrating the fastener, and installing a distance plate on the stud.
In some embodiments of the present invention, the dihedral corner region sub-insulation module includes a first bottom plate, a heat insulating block and a metal welding plate, a second included angle between two sides of the heat insulating block far from the first bottom plate is determined according to an angle of dihedral corners of the hull dihedral corner region structure, the second included angle ranges from 80 ° to 160 °, the dihedral corner region sub-insulation module is adhered and fixed to a bulkhead of the hull structure by the first bottom plate, and a step notch groove parallel to a straight line at an intersection of the two sides is formed at an outer edge of the heat insulating block far from the two sides of the first bottom plate;
the secondary layer corner area plane transition module comprises a second top plate, four heat preservation blocks, a cross reinforcing structure and a second bottom plate, wherein the four heat preservation blocks are fixedly arranged in a space formed by the second top plate, the second bottom plate and the cross reinforcing structure, the cross reinforcing structure is provided with two central supporting structures, the middle part of each central supporting structure is provided with a through hole for installing a penetrating fastener, two heat preservation blocks at one end, which is contacted with the secondary insulating module in the two-sided corner area, of the secondary insulating module in the two-sided corner area are provided with mounting notch grooves, the mounting notch grooves are formed in one side of the second top plate and are close to one side of the secondary layer two-sided corner area heat insulation module, and distance plunger holes are formed in the mounting notch grooves.
In some embodiments of the present invention, the metal connecting rod of the penetrating fastener is inserted into the penetrating hole of the central supporting structure on the cross reinforced structure of the dihedral zone plane transition secondary insulation module, and the cap rod structure of the upper section part of the penetrating fastener is screwed and fixed with the metal connecting rod and welded to the sub-layer welding metal sheet embedded on the second top plate.
In some embodiments of the present invention, when the double-sided corner secondary insulation module is adhesively secured to the bulkhead of the hull structure by the first bottom plate, a strip-shaped epoxy resin is adhered between the first bottom plate and the side wall of the hull structure at a certain interval, and the height of the epoxy resin between the first bottom plate and the side wall of the hull structure is set to be greater than 12mm and less than 20mm according to the interval between the epoxy resins.
In some embodiments of the present invention, a step plane parallel to the side surface of the step notch groove in the step notch groove is provided with a distance plunger hole 54 for distance installation of the two-sided corner region of the sub-layer and a distance bolt hole 55 for distance installation of the two-sided corner region of the sub-layer, and the heat insulation block is paved with metal welding plates for welding and fixing with the thin film layer of the sub-layer at other positions far away from the two side surfaces of the first bottom plate.
In some embodiments of the present invention, the dihedral region planar transition secondary insulation module further comprises a tabletting insulation block and a tabletting plate, wherein a welding plate groove and a welding plate groove are formed in the top of the second top plate, and after a secondary welding plate and a secondary welding metal sheet are respectively installed in the welding plate groove and the welding plate groove, the upper surface of the secondary welding plate and the upper surface of the secondary welding metal sheet are flush with the upper surface of the second top plate, and the secondary welding metal sheet is provided with a connecting hole for installing a penetrating fastener; the utility model discloses a solar panel, including installation notch groove, second top panel, second bottom panel, installation notch groove, ladder notch groove, two-sided angle area plane transition secondary insulation module, the laminating of two-sided angle area secondary insulation module is set up the back, the bottom in ladder notch groove with the bottom in installation notch groove bonds fixedly, the preforming insulation block with the clamp plate panel the lateral wall in ladder notch groove with the lateral wall in installation notch groove bonds fixedly, the upper portion of preforming insulation block with the second top panel bonds fixedly, and one two-sided angle area plane transition secondary insulation module corresponds two simultaneously and bonds fixedly.
In some embodiments of the present invention, the welding and fixing the boundary of each sub-layer film to the sub-layer welding plate or the sub-layer welding metal sheet of the second top plate provided on the dihedral corner region plane transition sub-insulation module includes:
welding the edges of the secondary layer films adjacent to the secondary insulating modules in the dihedral corner regions towards one side of the secondary insulating modules in the dihedral corner regions onto a metal welding plate, welding and fixing the other edges of the secondary layer films and the secondary layer welding plate or the secondary layer welding metal sheet of the secondary insulating modules in the plane transition of the dihedral corner regions, and paving a thermal protection layer at the positions of the boundaries of the secondary layer films, which are not contacted with the secondary layer welding plate and the secondary layer welding metal sheet;
and firstly, performing intermittent spot welding on the contact position of the sub-layer film and the sub-layer welding plate, the contact position of the sub-layer film and the sub-layer welding metal sheet or the contact position of the sub-layer film and the metal welding plate, and after a whole piece of sub-layer film is welded, overlapping the adjacent sub-layer film on the previous sub-layer film, and continuously welding the overlapped edge line.
In some embodiments of the present invention, the distance plate is made of plywood or plastic substitute material meeting the rigidity requirement, the thickness of the distance plate is set to be at least one of 1mm, 2mm, 5mm or 10mm, the distance plate is used for leveling, and the distance plate overlapping combination with different thicknesses is adopted, so that the distance between the bottom of the dihedral zone planar transition sub-insulation module and the bottom of the dihedral zone sub-insulation module and the bulkhead is 10mm;
The aperture of the through hole on the distance plate is 0.5-2mm larger than the outer diameter of the thread on the metal connecting rod.
In some embodiments of the invention, the through fastener comprises: a through fastener upper section portion and a through fastener lower section portion, wherein,
the upper section of the penetrating fastener comprises a cap rod structure, a compression block, a double-head screw rod and a metal sealing cap, wherein the compression block is arranged in installation gaps formed in the upper heat-insulating blocks of the two-face corner area heat-insulating and heat-preserving modules of 2 adjacent main layers and the upper heat-insulating blocks of the 2 main layer insulating layer modules, the lower part of the compression block is attached to the fixed cushion block, and long bolts on the compression block lock the compression block;
the lower section part comprises a cylindrical welding base and a metal connecting rod with threads at two ends, one end of the metal connecting rod penetrates through the sublayer welding metal sheet to be fixedly connected with the cap rod structure, the other end of the metal connecting rod is fixedly welded with the hull structure through the cylindrical welding base, and the metal connecting rod penetrates through a through hole of a central supporting structure on a cross reinforcing structure of the dihedral zone plane transition secondary insulation module.
In some embodiments of the present invention, the main layer two-sided corner region heat insulation module includes a first top board, an upper heat insulation block, a middle board and a lower heat insulation block which are fixedly connected in sequence, the first top board includes two rectangular boards arranged in a first included angle, the first included angle is determined according to the angle of two sides of the hull two-sided corner region structure, the first included angle is 80-160 °, the first top board is provided with a through stress release groove according to the structure of a main layer film covered on the first top board, the upper heat insulation block includes two rectangular heat insulation blocks arranged in a first included angle, the upper heat insulation block is provided with a non-through stress release groove arranged in alignment with the through stress release groove arranged on the first top board, the rectangular area of the upper heat insulation block is larger than that of the first top board, the lower heat insulation block includes two rectangular heat insulation blocks arranged in a first included angle, the middle part block is provided with a through stress release groove, the upper heat insulation block is arranged between the upper heat insulation block and the lower heat insulation block, the lower heat insulation block is provided with a through stress release groove arranged in a shape of the top pad block, the top heat insulation block is arranged in a shape of the top pad block is equal to the top pad, the top heat insulation block is provided with a through stress release groove arranged in the top block, and the top heat insulation block is provided with a top pad, the top pad is provided with a top heat insulation block is provided with a top heat insulation groove.
In some embodiments of the present invention, the first top sheet, the middle sheet, the second top sheet, the cross reinforcement structure, the first bottom sheet, and the second bottom sheet are all made of a low temperature resistant non-metallic material having a set strength, wherein the low temperature resistant non-metallic material is capable of withstanding temperatures of at least 196 degrees celsius below zero, the strength is required to meet the following requirements, in particular,
the vertical compression strength is more than or equal to 4Mpa, the bending strength is more than or equal to 20Mpa, the horizontal tensile strength is more than or equal to 25Mpa, the vertical tensile strength is more than or equal to 1.5Mpa, and the shearing strength is more than or equal to 2.5Mpa.
The upper heat preservation block, the lower heat preservation block, the heat insulation heat preservation block and the heat preservation block are all made of materials meeting the set heat conductivity coefficient requirement, wherein the set heat conductivity coefficient requirement is that the heat conductivity coefficient is not more than 0.1W/m.K;
the sublayer film is made of invar steel or 304L stainless steel or other low-temperature-resistant metal materials which are prefabricated into a set corrugated shape.
In some embodiments of the invention, the cross reinforcement structure is overlapped with the second top plate except the pressed plate, and is connected with the second top plate through glue or rivets;
The periphery of the second bottom plate is overlapped with the cross reinforcing structure and the second top plate except for the pressed plate, and is connected with the cross reinforcing structure through glue or rivets;
the heat insulation block is overlapped with the periphery of the second top plate, the second bottom plate and the cross reinforcing structure;
the contact parts of the heat preservation block, the second top plate, the second bottom plate and the cross reinforcing structure are all fixed by glue;
the step notch groove and the mounting notch groove are fixed by glue;
the tabletting heat insulation block is positioned between the second top plate and the tabletting plate;
the pressing sheet heat-insulating block is fixedly connected with the contact part of the second top plate, the pressing sheet plate and the heat-insulating block through glue.
Compared with the prior art, the two-sided corner area structure of the thin film type enclosure system provided by the embodiment of the invention has the beneficial effects that: the main insulating layer modules of the dihedral corner regions and the secondary insulating layer modules of the dihedral corner regions are arranged in a staggered manner, so that the overall heat leakage at the gaps is reduced; simultaneously, the insulating layer module of the secondary layer in the dihedral angle region is adhered with the hull structure by epoxy resin, and the insulating layer module of the primary layer in the dihedral angle region is connected by a penetrating fastener, and the penetrating fastener is provided with an elastic compression block, so that the insulating layer module of the primary layer in the dihedral angle region and the insulating layer module of the secondary layer in the dihedral angle region have relative motion fault tolerance, and the stability and the low-temperature deformation absorption capacity are stronger.
Drawings
FIG. 1 is a schematic diagram of a configuration of a dihedral corner region of a thin-film containment system in a method for installing the configuration of the dihedral corner region of the thin-film containment system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a structure arrangement of two-sided corner regions of a thin-film containment system in an installation method of the structure arrangement of two-sided corner regions of the thin-film containment system according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a layout of insulating modules in two corner areas of a thin-film enclosure system in an installation method of the layout structure in two corner areas of the thin-film enclosure system according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a two-sided corner region insulation module arrangement in a method for installing a two-sided corner region arrangement structure of a thin-film enclosure system according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a structure of a two-sided corner insulation module in a method for installing a two-sided corner arrangement structure of a thin-film enclosure system according to an embodiment of the present invention;
FIG. 6 is an exploded schematic view of a main layer dihedral corner region insulation module structure in a method for installing a dihedral corner region arrangement structure of a thin film enclosure system according to an embodiment of the present invention;
FIG. 7 is an exploded view of a penetrating fastener in a method of installing a two-sided corner area arrangement of a thin-film containment system according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a planar transition module structure of a dihedral angle sublayer in a method for installing a dihedral angle region arrangement structure of a thin-film enclosure system according to an embodiment of the present invention;
fig. 9 is an exploded schematic view of a planar transition module structure of a dihedral angle sublayer in an installation method of a dihedral angle region arrangement structure of a thin-film enclosure system according to an embodiment of the present invention.
Reference numerals
1. Welding a base; 2. a nut; 3. a metal connecting rod; 3a, thread cutting; 4. a sub-layer is welded with a metal sheet; 10. penetrating the lower section of the fastener; 11. a cap rod structure; 19. a long bolt; 21. a compaction block; 22. a double-ended screw; 23. a metal sealing cap; 24. welding a metal sheet on the main layer; 25. penetrating the upper section of the fastener; 26. a first included angle; 27. a second included angle; 28. penetrating the fastener; 29. an epoxy resin; 31. a sub-layer insulating layer; 31a, a sub-layer insulation module; 32. a sub-layer film layer; 32a, a sublayer film; 33. a main layer insulating layer; 33a, a main layer insulation module; 34. a main layer film layer; 34a, a main layer film; 35. fastening a clamping plate; 35a, a cross clamping plate; 35b, a straight clamping plate; 36. a distance plate; 37. a stud; 38. a primary layer welding plate; 39. a low density flexible insulating material; 40. a slit path; 41. a plunger; 50. a secondary insulation module in the two-sided corner region; a 50a, 90 DEG two-sided corner area sub-insulation module; 50b, 135 DEG dihedral zone sub-insulation modules; 51. a first bottom sheet; 52. a heat insulating block; 53. a metal welding plate; 54. spacing the plunger holes; 55. distance bolt holes; 56. a step notch groove; 57. two corner areas of the main layer; 58. the two-sided corner areas of the sublayer; 60. the two-sided corner areas of the main layer are insulated and heat-preserving modules; 60a, 90 degrees of main layer two-sided corner area heat insulation module; 60b, 135 degrees of main layer two-sided corner area heat insulation and preservation module; 61. an upper thermal insulation block; 62. a lower thermal insulation block; 63. a first top sheet; 64. a middle plate; 65. fixing the cushion block; 66. a through-type stress relief groove; 67. a non-penetrating stress relief groove; 68. an adaptation groove; 69. a notch; 70. the plane transition secondary insulation module of the two-sided corner area; 71. a secondary layer welding plate; 72. a second top sheet; 73. welding tab grooves; 74. a welding plate groove; 75. tabletting and insulating blocks; 76. a heat preservation block; 77. a cross reinforcement structure; 78. a through hole; 79. a central support structure; 80. a second bottom sheet; 81. tabletting the plate; 82. and (5) installing a notch groove.
Detailed Description
The present invention will be described in detail below with reference to the drawings and detailed description to enable those skilled in the art to better understand the technical scheme of the present invention.
Various aspects and features of the present application are described herein with reference to the accompanying drawings.
These and other characteristics of the present application will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.
It is also to be understood that, although the present application has been described with reference to some specific examples, a person skilled in the art will certainly be able to achieve many other equivalent forms of the present application, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The foregoing and other aspects, features, and advantages of the present application will become more apparent in light of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present application will be described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the application, which can be embodied in various forms. Well-known and/or repetitive functions and constructions are not described in detail to ascertain the true intent of the present application, based on the historical operations of the user, to avoid obscuring the application with unnecessary or redundant detail. Therefore, specific structural and functional details disclosed herein are not intended to be limiting, but merely serve as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present application in virtually any appropriately detailed structure.
The specification may use the word "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments as per the application.
The embodiment of the invention provides a method for installing a two-sided corner area arrangement structure of a film type enclosure system, as shown in fig. 1 to 9, wherein the film type enclosure system is used for accommodating ultralow temperature medium and comprises a main layer film layer 34, a fastening clamping plate 35, a main layer insulating layer 33, a secondary layer film layer 32 and a secondary layer insulating layer 31 which are sequentially connected and fixed on a ship structure (a ship steel plate) through penetrating fasteners 28, namely, the main layer insulating layer 33 and the fastening clamping plate 35 are arranged between the main layer film layer 34 and the secondary layer film layer 32, and the secondary layer insulating layer 31 is arranged between the secondary layer film layer 32 and the ship structure; the main layer film layer 34, the fastening clamping plate 35, the main layer insulating layer 33, the sub-layer film layer 32 and the sub-layer insulating layer 31 are connected and fixed on the ship structure through the penetrating fasteners 28, meanwhile, a main layer shielding space is formed by the main layer insulating structure and the gaps between the main layer film layer 34 and the sub-layer film layer 32, a sub-layer shielding space is formed by the sub-layer insulating structure and the gaps between the sub-layer film layer 32 and the ship structure, a double-layer sealed ultralow-temperature medium storage carrier is effectively built, and the problems of storage and leakage prevention of ultralow-temperature mediums are solved. In particular, the method comprises the steps of,
The method for installing the two-sided corner area arrangement structure of the thin-film enclosure system includes a main layer two-sided corner area 57 and a sub layer two-sided corner area 58 in the corner areas where two sides meet in the thin-film enclosure system, and the method includes:
scribing the bulkhead of the ship structure, welding a welding base 1 penetrating the lower section 10 of the fastener and a stud 37 for positioning a dihedral zone plane transition sub-insulation module 70 and a distance plate 36 of the dihedral zone sub-insulation module 50 of the sublayer dihedral zone 58 at a position on the bulkhead for placing the penetrating fastener 28 according to the scribing, placing an adapting nut 2 inside the welding base 1 before the welding base 1 performs welding operation, installing a metal connecting rod 3 penetrating the fastener 28 fixedly connected with the welding base 1, and installing a distance plate 36 on the stud 37; four through holes are symmetrically arranged at four corners of the distance plate about the central line of the distance plate 36, and each through hole is penetrated by a stud 37; wherein, the penetrating fastener comprises an upper segment 25 and a lower segment 10, the lower segment 10 comprises a cylindrical welding base 1 and a metal connecting rod 3 with threads at two ends, the upper segment 25 comprises a cap rod structure 11, a compression block 21, a double-head screw 22 and a metal sealing cap 23. The dihedral corner region sub-insulation module 50 includes 90 ° dihedral corner region sub-insulation modules 50a and 135 ° dihedral corner region sub-insulation modules 50b.
The studs 37 penetrating through the distance plate 35 extend into the heat insulation blocks 76 of the dihedral zone planar transition sub-insulation module 70 and the distance plunger holes 54 formed on the bottoms of the installation notch grooves 82 or extend into the distance plunger holes 54 formed on the bottoms of the stepped notch grooves 56 of the dihedral zone sub-insulation module, specifically, one dihedral zone sub-insulation module 50 is provided with one or two dihedral zone planar transition sub-insulation modules 70 connected with the same, meanwhile, 4 distance plunger holes 54 are formed on the bottoms of the stepped notch grooves 56 of the dihedral zone sub-insulation module 50, 1 distance plunger hole is formed at two ends of the bottoms of the installation notch grooves 82 of the dihedral zone planar transition sub-insulation module 70, wherein the dihedral zone sub-insulation module comprises a first bottom plate 51, a heat insulation block 52 and a metal welding plate 53, a second included angle 27 between two sides of the insulating block 52 is determined according to the angle of the dihedral zone structure of the dihedral zone, and the two bottom plate materials are adhered to each other in a line at the two sides of the two bottom plate material edges of the dihedral zone planar transition sub-insulation module 50, and the two bottom plate materials are adhered to each other by 80 degrees at the two bottom plate edges of the two bottom plate materials of the dihedral zone planar transition sub-insulation module 50; the secondary planar transition insulation module 70 for the dihedral corner region comprises a second top plate 72, four heat insulation blocks 76, a cross reinforcing structure 77 and a second bottom plate 80, wherein the four heat insulation blocks 76 are fixedly arranged in a space formed by the second top plate 72, the second bottom plate 80 and the cross reinforcing structure 77, the cross reinforcing structure 77 is provided with two central supporting structures 79, a through hole 78 for installing a penetrating fastener 28 is arranged in the middle of the central supporting structure 79, a mounting notch groove 82 is formed on one side of the top plate of the two heat insulation blocks 76 at one end, which is contacted with the secondary planar transition insulation module 70 for the dihedral corner region, of the secondary insulation module for the dihedral corner region, the mounting notch groove is positioned on one side, which is close to the secondary insulation module for the dihedral corner region, and a distance plunger hole 54 is arranged on the mounting notch groove;
Specifically, when the secondary insulation module is adhered and fixed to the bulkhead of the hull structure through the first bottom plate 51, the strip-shaped epoxy resin 29 is adhered between the first bottom plate 51 and the side wall of the hull structure at a certain interval, and the height of the epoxy resin 29 between the first bottom plate 51 and the side wall of the hull structure is set to be more than 12mm and less than 20mm according to the interval between the epoxy resins 29.
Further, the first bottom plate 51 and the second bottom plate 80 are respectively provided with openings concentrically arranged with the through holes, and the second top plate 72, the heat insulation block 52 and the heat insulation block 76 are provided with distance plunger holes 54 concentrically arranged with the corresponding through holes and having a diameter 2-4 times that of the corresponding through holes, so that the spacer, the fastening nut and the fixture tool are convenient to lock the distance plate 36. Further, after the four studs 37 penetrating through each distance plate 36 are locked by the nuts 2, the distance plunger holes 54 formed on each of the dihedral zone sub-insulation module 50 and the dihedral zone plane transition sub-insulation module 70 are plugged by using plungers 41 made of the same material as the heat insulation block 76, so that the effect of interconnection between each of the dihedral zone sub-insulation module 50 and the dihedral zone plane transition sub-insulation module 70 is achieved, and an auxiliary anchoring effect is achieved on each of the dihedral zone sub-insulation module 50 and the dihedral zone plane transition sub-insulation module 70.
The distance plate 36 is made of plywood or plastic substitute materials meeting the rigidity requirement, the thickness of the plate is set to be at least one of 1mm, 2mm, 5mm or 10mm, the distance plate 36 is used for leveling, and the distance between the bottom of the dihedral zone planar transition sub-insulation module 70 and the dihedral zone sub-insulation module 50 and the bulkhead is 10mm by overlapping and combining the distance plates 36 with different thicknesses; the aperture of the through hole on the distance plate 36 is 0.5-2mm larger than the outer diameter of the thread on the metal connecting rod 3.
After the dihedral zone sub-insulation module 50 and the dihedral zone planar transition sub-insulation module 70 are mounted to the distance plate 36, the mounting of the through-fasteners 28 is performed, the metal connecting rods 3 of the through-fasteners 28 are inserted into the through holes 78 of the central support structure 79 on the cross reinforcement structure 77 of the dihedral zone planar transition sub-insulation module 70, the cap rod structure 11 of the through-fastener upper section 25 is screwed with the upper threaded cut 3a of the metal connecting rods 3 and welded to the sub-layer welded metal sheets 4 which are embedded on the second top plate 72, and at the same time, the use of the distance plate 36, the epoxy resin 29 and the through-fasteners lower section 10 can effectively anchor the dihedral zone sub-insulation module 50 and the dihedral zone planar transition sub-insulation module 70 of the whole enclosure system to the bulkhead in the ship.
After the installation of both the two-sided corner planar transition module 70 and the two-sided corner secondary insulation module 50, the installation of the sub-layer film 32a is carried out, the sub-layer film a is made of invar steel or 304L stainless steel or other low temperature resistant metal materials which are prefabricated into a set corrugated shape, the sub-layer film 32 comprises a plurality of sub-layer films 32a with preset dimensions which are connected in a splicing way, in the corner area where two sides meet, the boundary of each sub-layer film 32a is welded and fixed with the sub-layer welding plate 71 or the sub-layer welding metal sheet 4 of the second top plate 72 arranged on the two-sided corner planar transition sub-insulation module 70, in particular, as the top of the two-sided corner planar transition module 50 is designed by adopting the metal welding plate 53 in the corner area where the two-sided corner planar transition sub-insulation module 70 is disconnected, the gap is framed on the corner area steel plate, the side surface of the transition film structure is welded directly on the steel plate of the adjacent corner area module, and the two ends of the transition film structure are welded directly to the corner area of the adjacent to the sub-layer film 32a, and the two-sided corner area planar transition module 70 are welded directly;
After the installation of the secondary layer film 32a in the corner region where the two side surfaces meet is completed, the installation of the main layer dihedral corner region heat insulation and preservation module 60 of the main layer dihedral corner region 57 is carried out, wherein each main layer dihedral corner region heat insulation and preservation module is in compression connection with the upper segment parts 25 of 4 penetrating fasteners, and the 4 penetrating fasteners 28 are respectively arranged at four corners of the main layer dihedral corner region heat insulation and preservation module; after the main layer dihedral corner region heat insulation module 60 and the adjacent other main layer dihedral corner region heat insulation module 60 and 2 main layer insulation modules 33a are installed in place at the same corner, installing corresponding compaction blocks 21 penetrating through fasteners 28 at the corner, wherein the compaction blocks 21 are pressed on middle plates 64 of the 2 adjacent main layer dihedral corner region heat insulation modules 60 and 2 main layer insulation modules 33a, and the compaction blocks 21 are fixedly connected and locked with the upper ends of the cap rod structures 11 respectively;
the installation fastening cardboard 35, fastening cardboard 35 includes cross cardboard 35a and a word cardboard 35b, cross cardboard 35 a's middle part position with a word cardboard 35 b's middle part position has all been seted up the groove of installation major layer welding sheetmetal 24 and has been installed the through-hole that runs through fastener 28, and major layer welding sheetmetal 24 has the centre bore, four rectangular limits of cross cardboard 35a with two rectangular limits of a word cardboard 35b have all set firmly the major layer welded plate 38 that is used for with major layer film 34a welded fastening.
After the fastening clip 35 is installed, the main film layer 34 is formed by splicing a plurality of main films 34a with a first preset size in a welding manner, and the boundary of each main film 34a is welded and fixed with the main welding plate 38 or the main welding metal sheet 24 on the fastening clip 35 arranged on the main insulating module 33 a.
In some embodiments of the present invention, a step plane parallel to the side surface of the step notch groove in the step notch groove is provided with a distance plunger hole 54 and a distance bolt hole 55 for distance installation of two corner areas of the secondary layer, and the heat insulation block 52 is paved with metal welding plates 53 for welding and fixing with the secondary layer film layer 32 at other positions far away from the two side surfaces of the first bottom plate 51.
Further, in this embodiment, the dihedral zone planar transition secondary insulation module 70 further includes a secondary welded metal sheet 4, a secondary welded plate 71, a pressed sheet insulation block 75, and a pressed sheet plate 81, wherein a welded plate groove 74 and a welded plate groove 73 are provided at the top of the second top sheet plate 72, and after the secondary welded plate 71 and the secondary welded metal sheet 4 are respectively installed in the welded plate groove and the welded plate groove, the upper surfaces of the secondary welded plate 71 and the secondary welded metal sheet 4 are flush with the upper surface of the second top sheet plate 72, and the secondary welded metal sheet 4 is provided with a connection hole for installing a penetrating fastener; the second top plate 72 and the second bottom plate 80 are respectively provided with a mounting fixing hole corresponding to the through hole 78 in the central supporting structure 79 on the cross reinforcing structure 77, the mounting notch groove 82 and the step notch groove 56 are correspondingly arranged, after the dihedral corner region plane transition secondary insulation module 70 and the dihedral corner region secondary insulation module 52 are attached and arranged, the bottom of the step notch groove 56 and the bottom of the mounting notch groove 82 are adhered and fixed, the pressing sheet heat preservation block 75 and the pressing sheet plate 81 are adhered and fixed, the side wall of the step notch groove 56 and the side wall of the mounting notch groove 82 are adhered and fixed, a gap between the side wall of the step notch groove 56 and the side wall of the mounting notch groove 82 is filled with a low-density flexible insulation material, the upper portion of the pressing sheet heat preservation block 75 and the second top plate 72 are adhered and fixed, and one dihedral corner region secondary insulation module 52 is simultaneously corresponding to the two dihedral corner region plane transition secondary insulation modules 70.
The welding and fixing the boundary of each sub-layer film layer 32 with the sub-layer welding plate 71 or the sub-layer welding metal sheet 4 provided on the second top plate 72 and the metal welding plate 53 provided on the double-sided corner secondary insulation module 52 includes:
welding the side of the sub-layer film 32a adjacent to the dihedral corner region sub-insulation module 52, which faces one side of the dihedral corner region sub-insulation module 52, to the metal welding plate 53, welding and fixing the other side of the sub-layer film 32a to the sub-layer welding plate 71 or the sub-layer welding metal sheet 4 of the dihedral corner region plane transition sub-insulation module 70, and paving a thermal protection layer at a position where the boundary of the sub-layer film 32a does not contact the sub-layer welding plate 71 and the sub-layer welding metal sheet 4;
the spot welding is performed at the position where the sub-layer film 32a contacts the sub-layer welding plate 71, the position where the sub-layer welding metal sheet 4 contacts or the position where the sub-layer welding plate 53 contacts, after the whole piece of sub-layer film 32a is welded, the adjacent sub-layer film 32a is lapped on the previous piece of sub-layer film 32a, and the lapped edge line is continuously welded.
Further, in this embodiment, the upper section 25 of the penetrating fastener includes a cap rod structure 11, a pressing block 21, a double-ended screw 22 and a metal sealing cap 23, where the pressing block 21 of the upper section 25 is disposed in mounting notches 69 formed in the upper thermal insulation blocks 61 of the two-sided corner thermal insulation modules 60 and the upper thermal insulation blocks 61 of the 2 main layer insulation modules 33a of the 2 adjacent main layers, the lower portion of the pressing block 21 is attached to the fixing cushion block 65, and long bolts 19 on the pressing block 21 of the upper section 25 lock the pressing block 21;
One end of the lower section metal connecting rod 3 of the lower section 10 passes through the sublayer welding metal sheet 4 to be fixedly connected with the cap rod structure 11, the other end is fixedly welded with the hull structure through the arranged cylindrical welding base 1, and the metal connecting rod 3 is arranged in a penetrating hole 78 of a central supporting structure on a cross reinforcing structure 77 of the dihedral zone plane transition secondary insulation module 70 in a penetrating mode.
In some embodiments of the present invention, the main layer dihedral corner region adiabatic heat retaining module 60 includes a 90 ° main layer dihedral corner region adiabatic heat retaining module 60a and a 135 ° main layer dihedral corner region adiabatic heat retaining module 60b, the main layer dihedral corner region adiabatic heat retaining module includes a first top plate 63, an upper heat retaining block 61, a middle plate 64 and a lower heat retaining block 62 fixedly connected in sequence, the first top plate 63 includes two rectangular plates disposed at a first included angle 26, the first included angle 26 is determined according to an angle of dihedral corners of a hull dihedral corner region structure, and the first included angle 26 ranges from 80 ° to 160 °, the first top plate 63 is provided with a through-type stress relief groove 66 according to a structure of a main layer film 34a covered thereon, the upper heat retaining block 61 includes two rectangular heat retaining blocks disposed at a first included angle 26, the upper heat-insulating block 61 is provided with a non-penetrating stress release groove 67 aligned with the penetrating stress release groove 66 arranged on the first top plate 63, the rectangular area of the upper heat-insulating block 61 is larger than that of the first top plate 63, the first top plate 63 is positioned in the rectangular middle of the upper heat-insulating block 61, the lower heat-insulating block 62 comprises two rectangular heat-insulating blocks arranged at a first included angle 26, the middle plate 64 is arranged between the upper heat-insulating block 61 and the lower heat-insulating block 62, four vertexes of the upper heat-insulating block 61, the middle plate 64 and the lower heat-insulating block 62 are respectively provided with a mounting notch 69 for mounting penetrating fasteners 28, the four vertexes of the middle plate 64 are provided with a fixed cushion block 65, the part of the fixed cushion block 65 in the lower heat-insulating block 62 is matched with the mounting notch 69 on the lower heat-insulating block 62 in shape, the fixing cushion block 65 is fixedly connected with the lower heat insulation block 62, and the bottom of the lower heat insulation block 62 is provided with an adapting groove 68 for accommodating the protruding structure on the secondary film layer 32a according to the shape and arrangement of the secondary film layer 32a contacted with the lower heat insulation block.
In some embodiments of the present invention, the first top sheet 63, the middle sheet 64, the second top sheet 72, the cross reinforcement structure 77, the first bottom sheet 51, and the second bottom sheet 80 are all made of a low temperature resistant nonmetallic material having a set strength, wherein the low temperature resistant nonmetallic material is capable of withstanding temperatures of at least 196 degrees celsius below zero, the strength is required to meet the following requirements, in particular,
the vertical compression strength is more than or equal to 4Mpa, the bending strength is more than or equal to 20Mpa, the horizontal tensile strength is more than or equal to 25Mpa, the vertical tensile strength is more than or equal to 1.5Mpa, and the shearing strength is more than or equal to 2.5Mpa.
The upper heat-insulating block 61, the lower heat-insulating block 62, the heat-insulating block 52 and the heat-insulating block 76 are made of materials meeting the set thermal conductivity requirement, wherein the set thermal conductivity requirement is that the thermal conductivity is not more than 0.1W/m.K;
the sub-film 32a is made of invar steel or 304L stainless steel or other low temperature resistant metal material prefabricated to have a corrugated shape.
In some embodiments of the present invention, the junction gap between the dihedral region structure of the thin film type enclosure system and the dihedral region planar transition secondary insulation module 70 and the main layer insulation module 33a of the adjacent planar region is staggered in a transverse "n" -shaped gap path 40.
In some embodiments of the present invention, the cross reinforcement structure 77 is overlapped with the second top plate 72 except for the pressed sheet 81, and is connected to the second top plate 72 by glue or rivets;
the second bottom plate 80 is overlapped with the cross reinforcing structure 77 and the second top plate 72 except for the pressed sheet 81, and is connected with the cross reinforcing structure 77 by glue or rivets;
the thermal block 76 coincides with the periphery of the second top sheet 72, the second bottom sheet 80 and the cross reinforcement structure 77;
the contact parts of the heat insulation blocks 76, the second top plate 72, the second bottom plate 80 and the cross reinforcing structures 77 are all fixed by glue;
the step notch groove 56 and the mounting notch groove 82 are fixed by glue;
the tabletting insulation 75 is located between the second top sheet 72 and the tabletting sheet 81;
the pressed sheet heat insulation block 75 is fixedly connected with the contact part of the second top plate 72, the pressed sheet 81 and the heat insulation block 76 through glue.
The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this invention will occur to those skilled in the art, and are intended to be within the spirit and scope of the invention.
Claims (13)
1. The method for installing the two-sided corner area arrangement structure of the film type enclosure system is characterized in that the film type enclosure system comprises a main layer film layer, a fastening clamping plate, a main layer insulating layer, a sub layer film layer and a sub layer insulating layer which are sequentially connected and fixed to a ship body structure through penetrating fasteners, wherein the main layer film layer, the main layer insulating layer, the sub layer film layer and the sub layer insulating layer are enclosed to form a low-temperature liquid cargo storage tank for accommodating ultra-low-temperature medium, and the main layer film layer is in contact with the ultra-low-temperature medium; the corner area where two side surfaces meet in the thin film type enclosure system comprises a main layer dihedral corner area and a secondary layer dihedral corner area, and the installation method comprises the following steps:
installing distance plates on bulkheads of the ship body structure according to set scribing lines and studs for positioning the double-sided corner area plane transition secondary insulation module of the double-sided corner area of the sublayer and the distance plates of the double-sided corner area secondary insulation module;
the double-face-angle-zone planar transition secondary insulation module and the double-face-angle-zone secondary insulation module are respectively mounted on a distance plate through penetrating fasteners, wherein bolts penetrating through the distance plate extend into distance plunger holes formed in heat insulation blocks of the double-face-angle-zone planar transition secondary insulation module and the bottoms of mounting notch grooves or into distance plunger holes formed in the bottoms of step notch grooves of the double-face-angle-zone secondary insulation module;
After the planar transition secondary insulation module of the dihedral corner region and the secondary insulation module of the dihedral corner region are installed, installing a secondary film layer, wherein the secondary film layer comprises a plurality of secondary films with preset sizes connected in a splicing mode, and in the corner region where two side surfaces are connected, welding and fixing the boundary of each secondary film with a secondary welding plate or a secondary welding metal sheet arranged on the top plate of the planar transition secondary insulation module of the dihedral corner region;
after the installation of the sub-layer film layers in the corner areas where the two side surfaces are connected, the installation of the main layer two-face corner area heat insulation and preservation modules of the main layer two-face corner areas is carried out, wherein each main layer two-face corner area heat insulation and preservation module is in compression connection with the upper sections of 4 penetrating fasteners, and the 4 penetrating fasteners arranged on the same main layer two-face corner area heat insulation and preservation module are respectively arranged at the four corners of the main layer two-face corner area heat insulation and preservation module; after the two-sided corner area heat insulation and preservation module of one main layer and the two-sided corner area heat insulation and preservation module of the other adjacent main layer and the two main layer insulating layer modules are installed in place at the same corner area, corresponding compression blocks penetrating through fasteners are installed at the corner area, the lower ends of the installed compression blocks are pressed on middle plates of the two-sided corner area heat insulation and preservation module of the two adjacent main layers and the two main layer insulating layer modules, and the installed compression blocks are fixedly connected and locked with the upper ends of cap rod structures of the corresponding penetrating fasteners;
The method comprises the steps of installing a fastening clamping plate, wherein the fastening clamping plate comprises a cross clamping plate and a straight clamping plate, grooves for installing a main layer welding metal sheet and penetrating holes for installing penetrating fasteners are formed in the middle position of the cross clamping plate and the middle position of the straight clamping plate, the main layer welding metal sheet is provided with a central hole, and main layer welding plates for welding and fixing with a main layer film layer are fixedly arranged on four long edges of the cross clamping plate and two long edges of the straight clamping plate;
after the fastening clamping plate is installed, a main layer film layer is installed, the main layer film layer comprises a plurality of main layer films with preset sizes, the main layer films are connected in a splicing mode, and the boundary of each main layer film is welded and fixed with a main layer welding plate or a main layer welding metal sheet arranged on the fastening clamping plate.
2. The method of installing a two-sided corner area arrangement of a membrane containment system of claim 1, wherein said method further comprises, prior to installing a spacer on a bulkhead of a hull structure according to a set score line:
scribing a bulkhead of the hull structure, and welding a welding base of a lower section part of the penetrating fastener at a position on the bulkhead for placing the penetrating fastener according to the scribing, wherein nuts are arranged in the welding base in advance before welding operation;
And installing a metal connecting rod fixedly connected with the welding base and penetrating the fastener, and installing a distance plate on the stud.
3. The method for installing the two-sided corner region arrangement structure of the thin-film enclosure system according to claim 2, wherein,
the secondary insulation module in the dihedral corner region comprises a first bottom plate, an insulation block and a metal welding plate, wherein a second included angle between two side surfaces of the insulation block, which are far away from the first bottom plate, is determined according to the dihedral corner angle of the dihedral corner region structure of the ship body, the range of the second included angle is 80-160 degrees, the secondary insulation module in the dihedral corner region is fixedly bonded with the bulkhead of the ship body structure through the first bottom plate, and a step notch groove which is arranged in parallel with a straight line at the intersection of the two side surfaces is formed at the outer side edge of the insulation block, which is far away from the two side surfaces of the first bottom plate;
the secondary layer corner area plane transition module comprises a second top plate, four heat preservation blocks, a cross reinforcing structure and a second bottom plate, wherein the four heat preservation blocks are fixedly arranged in a space formed by the second top plate, the second bottom plate and the cross reinforcing structure, the cross reinforcing structure is provided with two central supporting structures, the middle part of each central supporting structure is provided with a through hole for installing a penetrating fastener, two heat preservation blocks at one end, which is contacted with the secondary insulating module in the two-sided corner area, of the secondary insulating module in the two-sided corner area are provided with mounting notch grooves, the mounting notch grooves are formed in one side of the second top plate and are close to one side of the secondary layer two-sided corner area heat insulation module, and distance plunger holes are formed in the mounting notch grooves.
4. The method for installing the two-sided corner region arrangement structure of the thin-film enclosure system according to claim 3, wherein,
the metal connecting rod of the penetrating fastener penetrates through the penetrating hole of the center supporting structure on the cross reinforced structure of the dihedral zone plane transition secondary insulation module, and the cap rod structure of the upper section part of the penetrating fastener is screwed and fixed with the metal connecting rod and welded to a secondary layer welding metal sheet embedded in the second top plate.
5. The method for installing the two-sided corner region arrangement structure of the thin-film enclosure system according to claim 4, wherein,
when the secondary insulation module in the two-sided corner area is adhered and fixed with the bulkhead of the ship structure through the first bottom plate, strip-shaped epoxy resin is adhered between the first bottom plate and the side wall of the ship structure at a certain interval, and the height of the epoxy resin between the first bottom plate and the side wall of the ship structure is set to be more than 12mm and less than 20mm according to the interval between the epoxy resins.
6. The method for installing the two-sided corner region arrangement structure of the thin-film enclosure system according to claim 5, wherein,
the heat insulation and heat preservation plate is characterized in that a step plane parallel to the side surface of the step notch groove is provided with a distance plunger hole for distance installation of the two-sided corner area of the secondary layer and a distance bolt hole for distance installation of the two-sided corner area of the secondary layer, and the heat insulation and heat preservation block is paved at other positions far away from the two side surfaces of the first bottom plate and is used for being welded and fixed with the film layer of the secondary layer.
7. The method of installing a two-sided corner area arrangement of a thin film enclosure system of claim 6, wherein,
the secondary insulation module for the plane transition of the dihedral corner region further comprises a tabletting insulation block and a tabletting plate, wherein a welding plate groove and a welding sheet groove are formed in the top of the second top plate, and after a secondary welding plate and a secondary welding metal sheet are respectively arranged in the welding plate groove and the welding sheet groove, the upper surface of the secondary welding plate and the upper surface of the secondary welding metal sheet are flush with the upper surface of the second top plate, and the secondary welding metal sheet is provided with a connecting hole for installing a penetrating fastener; the utility model discloses a solar panel, including installation notch groove, second top panel, second bottom panel, installation notch groove, ladder notch groove, two-sided angle area plane transition secondary insulation module, the laminating of two-sided angle area secondary insulation module is set up the back, the bottom in ladder notch groove with the bottom in installation notch groove bonds fixedly, the preforming insulation block with the clamp plate panel the lateral wall in ladder notch groove with the lateral wall in installation notch groove bonds fixedly, the upper portion of preforming insulation block with the second top panel bonds fixedly, and one two-sided angle area plane transition secondary insulation module corresponds two simultaneously and bonds fixedly.
8. The method for installing the two-sided corner area arrangement structure of the film enclosure system according to claim 7, wherein the welding and fixing the boundary of each sub-layer film with the sub-layer welding plate or the sub-layer welding metal sheet of the second top plate provided on the two-sided corner area plane transition sub-insulation module comprises the following steps:
welding the edges of the secondary layer films adjacent to the secondary insulating modules in the dihedral corner regions towards one side of the secondary insulating modules in the dihedral corner regions onto a metal welding plate, welding and fixing the other edges of the secondary layer films and the secondary layer welding plate or the secondary layer welding metal sheet of the secondary insulating modules in the plane transition of the dihedral corner regions, and paving a thermal protection layer at the positions of the boundaries of the secondary layer films, which are not contacted with the secondary layer welding plate and the secondary layer welding metal sheet;
and firstly, performing intermittent spot welding on the contact position of the sub-layer film and the sub-layer welding plate, the contact position of the sub-layer film and the sub-layer welding metal sheet or the contact position of the sub-layer film and the metal welding plate, and after a whole piece of sub-layer film is welded, overlapping the adjacent sub-layer film on the previous sub-layer film, and continuously welding the overlapped edge line.
9. The method of installing a two-sided corner area arrangement of a thin film enclosure system of claim 8,
The distance plate is made of plywood or plastic substitute materials meeting the rigidity requirement, the thickness of the distance plate is at least one of 1mm, 2mm, 5mm or 10mm, the distance plate is used for leveling, and the distance plate overlapping combination with different thicknesses is adopted to enable the distance between the bottom of the dihedral zone plane transition sub-insulation module and the bottom of the dihedral zone sub-insulation module and the bulkhead to be 10mm;
the aperture of the through hole on the distance plate is 0.5-2mm larger than the outer diameter of the thread on the metal connecting rod.
10. The method of installing a two-sided corner area arrangement of a membrane containment system of claim 9, wherein said through fastener comprises: the upper section part of the penetrating fastener comprises a cap rod structure, a compression block, a double-head screw rod and a metal sealing cap, wherein the compression block is arranged in installation gaps formed in the upper heat-insulating blocks of the two-face corner area heat-insulating and heat-preserving modules of the 2 adjacent main layers and the upper heat-insulating blocks of the 2 main layer insulating layer modules, the lower part of the compression block is attached to the fixed cushion block, and long bolts on the compression block lock the compression block;
The lower section part of the penetrating fastener comprises a cylindrical welding base and a metal connecting rod with threads at two ends, one end of the metal connecting rod penetrates through the sublayer welding metal sheet to be fixedly connected with the cap rod structure, the other end of the metal connecting rod is fixedly welded with the hull structure through the cylindrical welding base, and the metal connecting rod penetrates through a through hole of a central supporting structure on a cross reinforced structure of the dihedral zone plane transition secondary insulation module.
11. The method of installing a two-sided corner area arrangement of a thin film enclosure system of claim 10, wherein,
the utility model provides a heat insulation module is kept warm to two face angle district of major layer including the first top panel, upper portion heat preservation piece, middle part panel and lower part heat preservation piece of fixed connection in proper order, first top panel includes two rectangle panels that are first contained angle setting, first contained angle is according to the angle determination of two face angles of hull two face angle district structures, just the scope of first contained angle is 80 ~ 160, first top panel is provided with the through stress relief groove according to the structure of major layer film layer that covers above that, upper portion heat preservation piece includes two rectangle heat preservation pieces that are first contained angle setting, upper portion heat preservation piece be equipped with the non-through stress relief groove that sets up on the first top panel, upper portion heat preservation piece rectangular area is greater than first top panel, first top panel is located the rectangular middle part that upper portion heat preservation piece is first contained angle setting, the middle part heat preservation piece is located between upper portion heat preservation piece and the major layer film layer, upper portion heat preservation piece and lower part heat preservation piece, the top piece is equipped with the heat preservation piece is equipped with the through stress relief groove that sets up on the first top panel, the top heat preservation piece is located the top piece, the top piece is equipped with the heat preservation piece is equipped with the top piece with the heat preservation piece is installed to the top piece, the top piece is equipped with the top heat preservation piece is equipped with the top piece of heat preservation piece.
12. The method of installing a two-sided corner area arrangement of a thin film containment system of claim 11,
the first top plate, the middle plate, the second top plate, the cross reinforcing structure, the first bottom plate and the second bottom plate are all made of low-temperature-resistant nonmetallic materials with set strength, wherein the low-temperature-resistant nonmetallic materials can at least resist the temperature of 196 ℃ below zero, the strength needs to meet the following requirements, in particular,
the vertical compression strength is more than or equal to 4Mpa, the bending strength is more than or equal to 20Mpa, the horizontal tensile strength is more than or equal to 25Mpa, the vertical tensile strength is more than or equal to 1.5Mpa, and the shearing strength is more than or equal to 2.5Mpa.
The upper heat preservation block, the lower heat preservation block, the heat insulation heat preservation block and the heat preservation block are all made of materials meeting the set heat conductivity coefficient requirement, wherein the set heat conductivity coefficient requirement is that the heat conductivity coefficient is not more than 0.1W/m.K;
the sublayer film layer film is made of invar steel or 304L stainless steel or other low-temperature-resistant metal materials which are prefabricated into a set corrugated shape.
13. The two-sided corner region arrangement of a thin film containment system of claim 12, wherein,
The periphery of the rest part of the cross reinforcing structure except the pressed sheet material is overlapped with the second top sheet material and is connected with the second top sheet material through glue or rivets;
the periphery of the second bottom plate is overlapped with the cross reinforcing structure and the second top plate except for the pressed plate, and is connected with the cross reinforcing structure through glue or rivets;
the heat insulation block is overlapped with the periphery of the second top plate, the second bottom plate and the cross reinforcing structure;
the contact parts of the heat preservation block, the second top plate, the second bottom plate and the cross reinforcing structure are all fixed by glue;
the step notch groove and the mounting notch groove are fixed by glue;
the tabletting heat insulation block is positioned between the second top plate and the tabletting plate;
the pressing sheet heat-insulating block is fixedly connected with the contact part of the second top plate, the pressing sheet plate and the heat-insulating block through glue.
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| CN202311521262.8A CN117585120A (en) | 2023-11-14 | 2023-11-14 | Mounting method of two-sided corner area arrangement structure of thin-film type enclosure system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117818822A (en) * | 2024-03-06 | 2024-04-05 | 沪东中华造船(集团)有限公司 | Corner area module of film type low-temperature liquid cargo containment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117818822A (en) * | 2024-03-06 | 2024-04-05 | 沪东中华造船(集团)有限公司 | Corner area module of film type low-temperature liquid cargo containment system |
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