CN117068326B - Film type enclosure system - Google Patents
Film type enclosure system Download PDFInfo
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- CN117068326B CN117068326B CN202311321876.1A CN202311321876A CN117068326B CN 117068326 B CN117068326 B CN 117068326B CN 202311321876 A CN202311321876 A CN 202311321876A CN 117068326 B CN117068326 B CN 117068326B
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- heat insulation
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- insulation layer
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- 238000009413 insulation Methods 0.000 claims abstract description 230
- 238000007789 sealing Methods 0.000 claims abstract description 71
- 239000011120 plywood Substances 0.000 claims abstract description 49
- 239000011491 glass wool Substances 0.000 claims abstract description 21
- 210000001503 joint Anatomy 0.000 claims description 34
- 229910001220 stainless steel Inorganic materials 0.000 claims description 30
- 239000010935 stainless steel Substances 0.000 claims description 30
- 239000002184 metal Substances 0.000 claims description 29
- 239000010409 thin film Substances 0.000 claims description 22
- 239000010408 film Substances 0.000 claims description 7
- 239000006260 foam Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 2
- 230000007423 decrease Effects 0.000 claims 1
- 238000001704 evaporation Methods 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 8
- 229920005830 Polyurethane Foam Polymers 0.000 description 5
- 239000011496 polyurethane foam Substances 0.000 description 5
- 238000004873 anchoring Methods 0.000 description 3
- 229910001374 Invar Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
- B63B3/00—Hulls characterised by their structure or component parts
- B63B3/14—Hull parts
- B63B3/68—Panellings; Linings, e.g. for insulating purposes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention relates to a film type enclosure system which is distributed in a plane area, a corner area intersected by two sides and a corner area intersected by three sides, and comprises a main layer sealing layer, a main layer heat insulation layer, a secondary layer sealing layer and a secondary layer heat insulation layer; the main layer heat insulation layer and the secondary layer heat insulation layer are connected through a connecting piece; the sub-layer heat insulation layer is adhesively mounted on the hull structure; the main layer heat insulation layer comprises a first plywood, a first insulation layer and a second plywood second insulation layer which are sequentially arranged; the secondary insulating layer comprises a third plywood, a third insulating layer and a fourth plywood which are sequentially arranged; glass wool is filled between the main layer heat insulation modules and between the secondary layer heat insulation modules. According to the invention, the special hierarchical structure of the main insulating module ensures the low heat conduction performance of the system, so that the evaporation rate of the whole enclosure system is low, the main insulating layer and the secondary insulating layer are connected through the connecting piece, the falling risk is avoided, the safety and stability of the system are improved, and the anti-sloshing performance of the system is improved.
Description
Technical Field
The invention relates to the field of LNG storage, in particular to a thin film type containment system.
Background
The liquid cargo tank enclosure system mainly comprises a shielding layer, a heat insulation layer and a supporting structure, and is mainly divided into two main types of self-supporting type and film type. Because the film type enclosure system does not need an independent supporting structure, the cost is lower, and the film type enclosure system is most widely used at present.
The prior art, for example, the patent application of the invention with publication number CN112498584a discloses an LNG ship, a thin film type containment system, which comprises a first sealing shielding layer, a second sealing shielding layer arranged outside the first sealing shielding layer and connected with the first sealing shielding layer through a first insulation structure, and a second insulation structure arranged outside the second sealing shielding layer and fixed with the second sealing shielding layer and the hull structure respectively.
The first insulation structure comprises a plurality of first insulation layers which are distributed at equal intervals in a matrix mode and glass wool filled in gaps among the first insulation layers, the first insulation layers comprise an insulation box with hollow inside and first insulation materials filled in the insulation box, and the first insulation materials are polyurethane foam.
The second insulating structure comprises a plurality of second insulating layers distributed in matrix at equal intervals, and glass wool filled in gaps among the second insulating layers. The second insulating layer is sequentially arranged from inside to outside and is composed of a first plywood, a second insulating material and a second plywood, and the second insulating material is polyurethane foam.
The first sealing shielding layer is made of stainless steel 304L, and is prefabricated into a corrugated shape, and the second sealing shielding layer is made of invar steel.
The invention provides a thin film type containment system which has good mechanical property and cold insulation performance, can bear liquid sloshing and hull deformation in a cargo hold and keeps low evaporation rate of liquefied gas.
Disclosure of Invention
In order to achieve the technical purpose, the invention provides the thin film type enclosure system, the pressure bearing capacity of the enclosure system is improved while the cold insulation effect is improved, in addition, the modularized design of the corner area is convenient for the installation of the whole system, and the installation time is shortened.
The technical purpose of the invention is realized by the following technical scheme:
compared with the prior art, the invention has the beneficial effects that:
a film enclosure system is distributed in a plane area, a corner area intersected by three surfaces and a corner area intersected by two surfaces, and comprises a main layer sealing layer, a main layer heat insulation layer, a secondary layer sealing layer and a secondary layer heat insulation layer which are sequentially arranged; the main layer heat insulation layer and the secondary layer heat insulation layer are connected through a connecting piece; the sub-layer heat insulation layer is adhesively mounted on the hull structure; the main layer heat insulation layer comprises a first plywood, a first insulation layer and a second plywood second insulation layer which are sequentially arranged; the secondary insulating layer comprises a third plywood, a third insulating layer and a fourth plywood which are sequentially arranged;
the connecting piece comprises a main layer clamping plate, a secondary layer clamping plate, a connecting rod and a fastening nut, wherein a through hole for the connecting rod to penetrate is formed in the middle of the main layer clamping plate, and a threaded hole is formed in the middle of the secondary layer clamping plate; external threads are respectively arranged at two ends of the connecting rod, the external threads at one end of the connecting rod are in threaded fit connection with the threaded holes of the secondary clamping plates, and the external threads at the other end of the connecting rod penetrate through the through holes of the primary clamping plates and then are in threaded fit with the fastening nuts; the edges of the main layer heat insulation layer are provided with clamping grooves corresponding to the main layer clamping plates, the edges of the sub layer heat insulation layer are provided with connecting blocks corresponding to the sub layer clamping plates, the sub layer clamping plates are fixed on the connecting blocks, and the main layer clamping plates are clamped into the clamping grooves.
Further, the clamping groove sequentially penetrates through the first plywood and the first insulating layer; the edge of the sub-layer heat insulation layer is provided with a notch which penetrates through the third plywood and then extends into the third insulation layer, and the connecting block is fixedly bonded in the notch.
Further, in the plane area, the primary layer sealing layer and the secondary layer sealing layer are corrugated plates; in the corner area where three sides are intersected and the corner area where two sides are intersected, the main layer sealing layer and the secondary layer sealing layer are both stainless steel metal plates.
Further, the sub-layer heat insulation layer in the corner region where three sides intersect is adjacent to the sub-layer heat insulation layer in the corner region where two sides in three directions to form a sub-layer heat insulation frame; the main heat insulation layers of the corner areas intersected on three sides are adjacent to the main heat insulation layers of the corner areas on two sides in three directions to form a main heat insulation frame; in the corner area where the two sides meet, the secondary heat insulation layer is filled in the secondary heat insulation frame, and the main heat insulation layer is filled in the main heat insulation frame.
Further, the end points are arranged after the corrugated plate extends to the edges of the corner areas where the two sides are intersected, and the end points of the corrugated plate are welded on the edges of the stainless steel metal plates of the corner areas where the two sides are intersected or welded on the edges of the stainless steel metal plates of the corner areas where the three sides are intersected.
Further, the corrugated plate comprises a bottom plane area and corrugations protruding relative to the bottom plane area, and the corrugations are orthogonally intersected; the center of the orthogonal intersection of the corrugation is provided with saddle-shaped nodes, the joint of the corrugation and the nodes forms the high position of the nodes, the high position is higher than the vertex of the outer contour of the corrugation, the nodes smoothly sink along the high position towards the center of the orthogonal intersection of the corrugation to form the low position, and the low position is higher than the bottom plane area.
Further, in the planar area, the second insulating layer of the main insulating layer is provided with accommodating grooves for the corrugations of the corrugated plates of the secondary sealing layer.
Further, in the corner area where the two sides are intersected, the secondary heat insulation layer comprises a first corner secondary heat insulation layer and a second corner secondary heat insulation layer which are butted by an included angle, and glass wool is filled between butted positions of the first corner secondary heat insulation layer and the second corner secondary heat insulation layer; the main layer heat insulation layer comprises a first corner main heat insulation layer and a second corner main heat insulation layer which are in butt joint at an included angle, and glass wool is filled between the butt joint positions of the first corner main heat insulation layer and the second corner main heat insulation layer.
Further, in the corner area where three sides are intersected, the main heat insulation layer comprises a third corner main heat insulation layer, a fourth corner main heat insulation layer and a fifth corner main heat insulation layer which are in butt joint in pairs, and glass wool is filled in the butt joint positions of the third corner main heat insulation layer, the fourth corner main heat insulation layer and the fifth corner main heat insulation layer; the secondary heat insulation layer comprises a third angle area secondary heat insulation layer, a fourth angle area secondary heat insulation layer and a fifth angle area secondary heat insulation layer, and glass wool is filled at the butt joint position of the third angle area secondary heat insulation layer, the fourth angle area secondary heat insulation layer and the fifth angle area secondary heat insulation layer.
Further, in the corner region where the two sides intersect, the first corner secondary heat insulation layer and the second corner secondary heat insulation layer are respectively covered with a stainless steel metal plate, the included angle position of the first corner secondary heat insulation layer and the second corner secondary heat insulation layer is also provided with an included angle region corrugated plate, and the included angle region corrugated plate is respectively lapped on the stainless steel metal plate of the first corner secondary heat insulation layer and the stainless steel metal plate of the second corner secondary heat insulation layer.
Further, in the corner area where the two sides are intersected, the first corner main heat insulation layer and the second corner main heat insulation layer are respectively provided with a butt joint folded edge, the butt joint folded edge of the first corner main heat insulation layer and the butt joint folded edge of the second corner main heat insulation layer are butt-jointed to form a main layer heat insulation layer inclined plane, and glass wool is filled in the butt joint position of the butt joint folded edge.
Further, in the corner region where the two surfaces are intersected, the main layer sealing layer is an integrated stainless steel metal plate, the stainless steel metal plate of the main layer sealing layer comprises a first sealing surface, a second sealing surface and a third sealing surface which are sequentially arranged, and the first sealing surface, the second sealing surface and the third sealing surface are respectively attached to the first corner region main heat insulation layer, the main layer heat insulation layer inclined plane and the second corner region main heat insulation layer.
Further, in the plane area, the main layer heat insulation layer and the secondary layer heat insulation layer are respectively provided with stress release grooves, and the intervals of the stress release grooves are consistent with the intervals of the corrugations of the corrugated plates.
Further, in the plane area, anchor bars are respectively arranged on the main layer heat insulation layer and the secondary layer heat insulation layer, and the corrugated plates are connected with the anchor bars in a welding way.
Further, a foam plug for filling the clamping groove is also arranged in the clamping groove.
Further, waist round holes are respectively arranged at four corners of the sub-layer clamping plate, fasteners are arranged in the waist round holes in a penetrating mode, and the sub-layer clamping plate is connected with the connecting block through the fasteners. The waist round hole on the sub-layer clamping plate can ensure that the sub-layer insulation module can shrink and displace after precooling, and can not be completely fixed and locked by the sub-layer clamping plate.
Further, the secondary layer clamping plate at least spans the connecting blocks of two adjacent secondary layer heat insulation layers, and the main layer clamping plate is at least clamped into the clamping grooves of two adjacent main layer heat insulation layers.
Further, a main layer shielding space is formed between adjacent main layer heat insulation layers and between the main layer heat insulation layers and the main layer sealing layers, and a sub shielding space is formed between adjacent sub layer heat insulation layers and between the sub layer heat insulation layers and the sub layer sealing layers.
Further, inert shielding gas is filled in the main layer shielding space and the secondary layer shielding space, and a temperature sensor and a combustible gas sensor are also arranged in the main layer shielding space and the secondary layer shielding space.
Further, the edge of the sub-layer heat insulation layer is provided with a temporary fixing bolt hole for temporarily fixing the sub-layer heat insulation layer.
Further, the included angle between the first corner main insulating layer and the second corner main insulating layer is 90 degrees or 135 degrees.
Further, the bottom of connecting block is provided with embedded nut, and the fastener passes connecting block and embedded nut threaded connection, and the main material of the insulating module of sublayer is polyurethane foam, if not connecting block fastener is difficult to realize fixedly, the setting of embedded nut is convenient for the fastener installation.
1. According to the enclosure system, the special hierarchical structure of the main layer insulating module is used for arrangement, so that the insulating effect and the structural strength are effectively improved, the low heat conduction performance of the system is guaranteed, the evaporation rate of the whole enclosure system is low, the main layer insulating layer and the secondary layer insulating layer are connected through the connecting piece, the falling risk caused by glue adhesion is avoided, the safety and the stability of the system are improved, and the anti-sloshing performance of the system is improved.
2. Compared with an NO96 type enclosure system, the corner module adopts a modularized structural form, so that the complexity of system installation is simplified, the installation difficulty is reduced, and the installation period is shortened.
3. The plane area is used as the area with the largest area, and corrugated plates are used as sealing areas, so that the cost of the whole enclosure system can be reduced compared with the cost of invar steel.
4. The saddle-shaped nodes of the corrugated board are arranged, the nodes form low positions at the centers of orthogonal intersection, the joints of the nodes and the corrugations form high positions, the rigidity of the joints of the corrugations is enhanced by the shape design, meanwhile, the low positions of the centers enable the bearing downward deformation of the corrugated board to be restrained, and the pressure-resistant and deformation-resistant capacity of the corrugated board is better than that of the corrugated joint of the existing Mark III.
Drawings
FIG. 1 is a schematic view of a thin film enclosure system according to the present invention.
Fig. 2 is a schematic view of the attachment of the present invention.
FIG. 3 is a schematic view of the structure of the main insulating layer in the plane area in the present invention.
FIG. 4 is a schematic view of the sub-layer insulation layer structure of the planar area in the present invention.
FIG. 5 is a schematic view of the structure of the heat insulating layer of the main layer at the corner area where the two sides meet in the present invention.
FIG. 6 is an exploded view of the primary insulation at the corner area where the two sides meet in the present invention.
FIG. 7 is a schematic view of the structure of the sub-layer insulation layer at the corner region where the two sides meet in the invention.
FIG. 8 is an exploded view of the sub-layer insulation at the corner area where the two sides meet in the present invention.
Fig. 9 is a schematic view of the corrugated plate arrangement in the angled region of the present invention.
FIG. 10 is a schematic view of the structure of the primary insulation layer at corner regions where three sides intersect in the invention.
FIG. 11 is a schematic view of the structure of a sub-layer insulation layer at corner regions where three sides intersect in the present invention.
FIG. 12 is an exploded view of the primary insulation at three-sided intersection corner areas of the present invention.
FIG. 13 is an exploded view of the sub-layer insulation at corner areas where three sides meet in the present invention.
FIG. 14 is a schematic view of the present invention with the sub-layer insulation of the planar area filled within the sub-layer insulation frame.
FIG. 15 is a schematic view of the present invention with the planar area of the primary insulation packed within the primary insulation framework.
FIG. 16 is a schematic view of the structure of the corrugated board according to the present invention.
In the figure, 1, a main layer sealing layer; 2. a main layer heat insulation layer; 3. a sub-layer sealing layer; 4. a sub-layer heat insulating layer; 5. a connecting piece; 6. a foam plug; 7. an anchor bar; 8. glass wool;
201. a first plywood; 202. a first insulating layer; 203. a second plywood; 204. a second insulating layer; 205. a clamping groove; 206. a receiving groove; 207. a first corner main insulating layer; 208. a second corner insulating layer; 209. butt joint flanging; 210. a third zone main insulating layer; 211. a fourth corner main insulating layer; 212. a fifth corner region main insulating layer;
401. a third plywood; 402. a third insulating layer; 403. a fourth plywood; 404. a connecting block; 405. a first corner secondary insulating layer; 406. a second corner secondary insulating layer; 407. corrugated plates in the included angle areas; 408. a third secondary insulating layer; 409. a fourth corner secondary heat insulation layer; 410. a fifth angular region sub-insulation layer;
501. a primary layer clamping plate; 502. a sub-layer clamping plate; 503. a connecting rod; 504. a fastening nut; 505. embedding nuts; 506. a fastener;
901. ripple; 902. a node; 903. high level; 904. a planar region.
Detailed Description
The technical scheme of the invention is further described below with reference to the specific embodiments:
the film type enclosure system is distributed in a plane area, a corner area with three intersecting surfaces and a corner area with two intersecting surfaces, and comprises a main layer sealing layer 1, a main layer heat insulation layer 2, a secondary layer sealing layer 3 and a secondary layer heat insulation layer 4 which are sequentially arranged as shown in figure 1; the main layer heat insulation layer 2 and the secondary layer heat insulation layer 4 are connected through a connecting piece 5; the sub-layer heat insulation layer 4 is adhesively mounted on the hull structure; the main layer heat insulation layer 2 comprises a first plywood 201, a first insulation layer 202, a second plywood 203 and a second insulation layer 204 which are sequentially arranged; the sub-layer insulating layer 4 includes a third plywood 401, a third insulating layer 402, and a fourth plywood 403, which are sequentially disposed. Wherein the first insulating layer 202, the second insulating layer 204, and the third insulating layer 402 are polyurethane foam.
In order to facilitate the installation of the secondary insulating layer, a temporary fixing bolt hole for temporarily fixing the secondary insulating layer is formed in the edge of the secondary insulating layer, a fixing bolt is installed on the ship body when the secondary insulating layer is installed, epoxy resin is coated on one side, in contact with the ship body, of the secondary insulating layer, then a nut is installed and screwed after the fixing bolt passes through the temporary fixing bolt hole, and the completion of epoxy resin curing is waited.
The connecting piece 5 comprises a main layer clamping plate 501, a secondary layer clamping plate 502, a connecting rod 503 and a fastening nut 504, wherein a through hole for the connecting rod 503 to penetrate is formed in the middle of the main layer clamping plate 501, and a threaded hole is formed in the middle of the secondary layer clamping plate 502; external threads are respectively arranged at two ends of the connecting rod 503, the external threads at one end of the connecting rod 503 are in threaded fit connection with the threaded holes of the secondary clamping plates 502, and the external threads at the other end of the connecting rod 503 penetrate through the through holes of the primary clamping plates 501 and then are in threaded fit with the fastening nuts 504.
When the connecting piece connects the main layer insulating layer and the secondary layer insulating layer, as shown in fig. 2, the edge of the main layer insulating layer 2 is provided with a clamping groove 205 corresponding to the main layer clamping plate 501, the edge of the secondary layer insulating layer 4 is provided with a connecting block 404 corresponding to the secondary layer clamping plate 502, the secondary layer clamping plate 502 is fixed on the connecting block 404, and the main layer clamping plate 501 is clamped into the clamping groove 205. Preferably, a foam plug 6 for filling the clamping groove 205 is further installed in the clamping groove 205, and after the main layer clamping plate is clamped, the clamping groove is filled up by plugging the foam plug 6.
Specifically, the clamping groove sequentially penetrates through the first plywood 201 and the first insulating layer 202, and after the main layer clamping plate 501 is clamped into the clamping groove 205, the edge of the main layer clamping plate 501 hooks the first plywood 201; the edge of the sub-layer heat insulation layer is provided with a notch which penetrates through the third plywood and then extends into the third insulation layer, the connecting block is bonded and fixed in the notch, if the third insulation layer adopts polyurethane foam, the sub-layer clamping plate 502 is difficult to fix on the sub-layer heat insulation layer 4 for stress, and therefore a mode of bonding the connecting block 404 is adopted to provide a force application point for the connecting piece 5.
Preferably, the sub-layer clamping plate 502 is provided with a waist hole, a fastener 506, such as a bolt, is arranged in the waist hole in a penetrating manner, and the sub-layer clamping plate 502 is connected with the connecting block through the fastener. When the sub-layer heat insulation layer 4 is contracted by cooling, the fastener 506 can adaptively adjust displacement in the oval hole along with the contraction of the sub-layer heat insulation layer 4, so as to play a role in compensation.
In order to facilitate the installation of the fasteners 506, the bottom of the connecting block 404 is provided with embedded nuts 505, and the fasteners penetrate through the connecting block 404 to be in threaded connection with the embedded nuts 505.
The sub-layer clamping plates are divided into two types of rectangular and square according to different positions; the rectangular sub-layer clamping plate is provided with two waist round holes, and the square sub-layer clamping plate is provided with four waist round holes, as shown in fig. 14. Square sub-layer cardboard can span the connecting block of connecting four sub-layer insulating layers simultaneously, and rectangular sub-layer cardboard can span the connecting block of connecting two sub-layer insulating layers simultaneously. Similar to the secondary layer cardboard, the primary layer cardboard also includes rectangle and square two kinds, and the draw-in groove of 2 primary layer insulating layers is blocked to the primary layer cardboard of rectangle simultaneously, and the draw-in groove of 4 primary layer insulating layers is blocked to square primary layer cardboard simultaneously, as shown in fig. 15.
A main layer shielding space is formed between the adjacent main layer heat insulation layers 2 and between the main layer heat insulation layers 2 and the main layer sealing layer 1, and a secondary shielding space is formed between the adjacent secondary layer heat insulation layers 4 and between the secondary layer heat insulation layers 4 and the secondary layer sealing layer 3. Inert shielding gas is filled in the main layer shielding space and the secondary layer shielding space, and a temperature sensor and a combustible gas sensor are also arranged in the main layer shielding space and the secondary layer shielding space.
(1) In the planar area:
corrugated plates are selected as the primary sealing layer and the secondary sealing layer, and the primary heat insulation layer is shown in fig. 3 and comprises a first plywood 201, a first insulation layer 202, a second plywood 203 and a second insulation layer 204 which are sequentially arranged; the secondary insulating layer is shown in fig. 4 and comprises a third plywood 401, a third insulating layer 402 and a fourth plywood 403 which are sequentially arranged; the surface of the first plywood 201 is provided with an anchoring strip 7, the anchoring strip 7 is fixed on the first plywood 201 through a screw, and the corrugated plate of the main layer sealing layer is welded and fixed on the anchoring strip 7 of the first plywood; also, the corrugated sheets of the sub-sealing layer are welded to the anchor bars 7 on the third plywood 401.
Preferably, as shown in fig. 3, the second insulating layer 204 of the primary insulating layer 2 is provided with receiving grooves 206 for the corrugations of the corrugated sheet of the secondary sealing layer 3. The main layer heat insulation layer and the secondary layer heat insulation layer are also respectively provided with stress release grooves, and the spacing between the stress release grooves is consistent with the corrugated spacing of the corrugated plate
(2) Corner regions where the two faces meet:
the main layer sealing layer is made of stainless steel metal plates 2 and the secondary layer sealing layer is made of stainless steel metal plates, the stainless steel metal plates of the main sealing layer 1 are adhered and fixed on the first plywood 201, and the stainless steel metal plates of the secondary sealing layer 3 are adhered and fixed on the third plywood 401. The main layer of heat insulation layer is shown in fig. 5, and comprises a first plywood 201, a first insulation layer 202, a second plywood 203 and a second insulation layer 204 which are sequentially arranged; the secondary insulating layer is shown in fig. 7 and comprises a third plywood 401, a third insulating layer 402 and a fourth plywood 403 which are sequentially arranged.
When the glass wool glass fiber reinforced plastic heat insulation layer is manufactured, the main heat insulation layer comprises a first corner main heat insulation layer 207 and a second corner main heat insulation layer 208 which are in butt joint with each other at an included angle, the included angle between the first corner main heat insulation layer 207 and the second corner main heat insulation layer 208 is 90 degrees or 135 degrees, as shown in fig. 6, the included angle between the first corner main heat insulation layer 207 and the second corner main heat insulation layer 208 in fig. 6 is 90 degrees, and glass wool 8 is filled between the butt joint positions of the first corner main heat insulation layer 207 and the second corner main heat insulation layer 208;
the secondary heat insulating layer comprises a first corner secondary heat insulating layer 405 and a second corner secondary heat insulating layer 406 which are in butt joint at an included angle, and as shown in fig. 8, glass wool 8 is filled between butt joint positions of the first corner secondary heat insulating layer 405 and the second corner secondary heat insulating layer 406.
Preferably, the first corner secondary heat insulation layer 405 and the second corner secondary heat insulation layer 406 are respectively covered with a stainless steel metal plate as a secondary layer sealing layer 3, and the included angle position of the first corner secondary heat insulation layer 405 and the second corner secondary heat insulation layer 406 is also provided with an included angle area corrugated plate 407, as shown in fig. 9, the arrangement of the included angle area corrugated plate is beneficial to stress release of the secondary layer heat insulation layer at the corner position; the corrugated plates 407 in the included angle areas are respectively overlapped on the stainless steel metal plate of the first corner secondary heat insulation layer 405 and the stainless steel metal plate of the second corner secondary heat insulation layer 406, and the overlapped positions are welded and connected.
Because of the arrangement of the corrugated plates 407 in the included angle areas, the main heat insulating layer needs to give up space for the corrugated plates 407 in the included angle areas in the two intersecting areas, so that the thickness of the main heat insulating layer at the corner areas is reduced, in order to compensate the thickness reduction of the main heat insulating layer, the first corner main heat insulating layer 207 and the second corner main heat insulating layer 208 are respectively provided with a butt joint folded edge 209, the butt joint folded edges 209 of the first corner main heat insulating layer and the butt joint folded edges 209 of the second corner main heat insulating layer are in butt joint to form a main heat insulating layer inclined plane, and the butt joint positions of the butt joint folded edges 209 are filled with glass wool 8.
In the corner region where the two surfaces intersect, the main layer sealing layer 1 is an integrated stainless steel metal plate, and the stainless steel metal plate of the main layer sealing layer comprises a first sealing surface 101, a second sealing surface 102 and a third sealing surface 103 which are sequentially arranged, and the first sealing surface 101, the second sealing surface 102 and the third sealing surface 103 are respectively attached to a first corner region main heat insulation layer 207, a main layer heat insulation layer inclined surface and a second corner region main heat insulation layer 208.
(3) Corner regions where three sides intersect:
the main sealing layer 1 and the secondary sealing layer 3 are made of stainless steel metal plates, the stainless steel metal plates of the main sealing layer 1 are adhered and fixed on the first plywood 201, and the stainless steel metal plates of the secondary sealing layer 3 are adhered and fixed on the third plywood 401. The main layer insulating layer is shown in fig. 10, and comprises a first plywood 201, a first insulating layer 202, a second plywood 203 and a second insulating layer 204 which are sequentially arranged; the secondary insulating layer is shown in fig. 11 and includes a third plywood 401, a third insulating layer 402 and a fourth plywood 403 which are sequentially arranged.
When the glass wool glass fiber reinforced plastic composite is built, at a corner area where three sides are intersected, the main layer heat insulation layer comprises three modules, namely a third corner main heat insulation layer 210, a fourth corner main heat insulation layer 211 and a fifth corner main heat insulation layer 212, and as shown in fig. 12, the butt joint positions of the third corner main heat insulation layer 210, the fourth corner main heat insulation layer 211 and the fifth corner main heat insulation layer 212 are filled with glass wool 8; the secondary insulating layers comprise three modules of a third secondary insulating layer 408, a fourth secondary insulating layer 409 and a fifth secondary insulating layer 410, and as shown in fig. 13, the positions where the third secondary insulating layer 408, the fourth secondary insulating layer 409 and the fifth secondary insulating layer 410 are in butt joint are filled with glass wool 8.
The sub-layer insulation layers of the corner areas where three sides intersect are adjacent to the sub-layer insulation layers of the corner areas where two sides are located in three directions to form a sub-layer insulation frame, as shown in fig. 14; the main layer insulation layers of the corner areas where three sides are intersected are adjacent to the main layer insulation layers of the corner areas where two sides are located in three directions to form a main layer insulation frame, as shown in fig. 15; in the corner area where the two sides are intersected, the secondary heat insulation layer is filled in the secondary heat insulation frame, and the main heat insulation layer is filled in the main heat insulation frame.
The corrugated plate extends to the rear end of the edge of the corner area where two sides are intersected, an end point is arranged, and the end point of the corrugated plate is welded on the edge of the stainless steel metal plate of the corner area where two adjacent sides are intersected in a lap joint mode or welded on the edge of the stainless steel metal plate of the corner area where three adjacent sides are intersected in a lap joint mode.
Preferably, the corrugated plate comprises a bottom plane area 904 and corrugations 901 protruding relative to the bottom plane area 904, wherein the corrugations 901 are orthogonally crossed, a saddle-like node 902 is arranged at the center of the orthogonal intersection of the corrugations, as shown in fig. 16, the joint of the corrugations 901 and the node 902 forms a high position 903 of the node, the high position 903 is higher than the vertex of the outer contour of the corrugations 901, the node 902 is smoothly concave along the high position towards the center of the orthogonal intersection of the corrugations to form a low position, and the low position is higher than the bottom plane area 904.
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 (20)
1. The film type enclosure system is distributed in a plane area, a corner area with three intersecting surfaces and a corner area with two intersecting surfaces, and is characterized by comprising a main layer sealing layer, a main layer heat insulation layer, a secondary layer sealing layer and a secondary layer heat insulation layer which are sequentially arranged; the main heat insulation layer and the secondary heat insulation layer are connected through a connecting piece; the secondary heat insulation layer is adhesively mounted on the ship structure; the main layer heat insulation layer comprises a first plywood, a first insulation layer and a second plywood second insulation layer which are sequentially arranged; the secondary insulating layer comprises a third plywood, a third insulating layer and a fourth plywood which are sequentially arranged;
the connecting piece comprises a main layer clamping plate, a secondary layer clamping plate, a connecting rod and a fastening nut, wherein a through hole for the connecting rod to penetrate is formed in the middle of the main layer clamping plate, and a threaded hole is formed in the middle of the secondary layer clamping plate; external threads are respectively arranged at two ends of the connecting rod, the external threads at one end of the connecting rod are in threaded fit connection with the threaded holes of the secondary clamping plates, and the external threads at the other end of the connecting rod penetrate through the through holes of the primary clamping plates and then are in threaded fit with the fastening nuts; the edges of the main layer heat insulation layers are provided with clamping grooves corresponding to the main layer clamping plates, the edges of the secondary layer heat insulation layers are provided with connecting blocks corresponding to the secondary layer clamping plates, the secondary layer clamping plates are fixed on the connecting blocks, and the main layer clamping plates are clamped into the clamping grooves;
the clamping groove sequentially penetrates through the first plywood and the first insulating layer; the edge of the sub-layer heat insulation layer is provided with a notch which penetrates through the third plywood and then extends into the third insulation layer, and the connecting block is fixedly bonded in the notch;
the secondary heat insulation layer comprises a first secondary heat insulation layer and a second secondary heat insulation layer which are in butt joint with each other at an included angle, wherein the first secondary heat insulation layer and the second secondary heat insulation layer are respectively covered with a stainless steel metal plate, included angle area corrugated plates are further arranged at the included angle positions of the first secondary heat insulation layer and the second secondary heat insulation layer, and the included angle area corrugated plates are respectively lapped on the stainless steel metal plates of the first secondary heat insulation layer and the second secondary heat insulation layer.
2. The thin film containment system of claim 1, wherein in said planar region, said primary seal layer and said secondary seal layer are corrugated sheets; and in the corner area where the three sides are intersected and the corner area where the two sides are intersected, the primary layer sealing layer and the secondary layer sealing layer are both stainless steel metal plates.
3. The thin film containment system of claim 2, wherein the sub-layer insulation adjacent to the corner areas in three directions forms a sub-layer insulation frame; the main heat insulation layers of the corner areas intersected on three sides are adjacent to the main heat insulation layers of the corner areas on two sides in three directions to form a main heat insulation frame; and in the corner area where the two sides are intersected, the secondary layer heat insulation layer is filled in the secondary layer heat insulation frame, and the main layer heat insulation layer is filled in the main layer heat insulation frame.
4. A thin film containment system as claimed in claim 3, wherein the corrugated plate extends to the rear of the edge of the corner region where two sides meet to form an end point, and the end point of the corrugated plate is lap welded to the edge of the stainless steel metal plate of the corner region where two adjacent sides meet or to the edge of the stainless steel metal plate of the corner region where three adjacent sides meet.
5. The membrane containment system of claim 2 or 4, wherein said corrugated sheet comprises a bottom planar region, corrugations projecting relative to the bottom planar region, said corrugations being disposed orthogonally intersecting; the center that the ripple quadrature is crossed is equipped with the node of class saddle shape, the ripple forms the high position of node with the node junction, and the high position is higher than the outline summit of ripple, the node is along high position towards the smooth low position that forms of the crisscross center smooth concave decline of ripple, the low position is higher than bottom plane area.
6. The thin film containment system of claim 1, wherein the second insulating layer of the primary insulating layer is provided with receiving grooves in the corrugations of the corrugated sheet of the secondary sealing layer in the planar region.
7. The thin film containment system of claim 1, wherein glass wool is filled between the first corner secondary insulation and the second corner secondary insulation; the main layer heat insulation layer comprises a first corner main heat insulation layer and a second corner main heat insulation layer which are in butt joint at an included angle, and glass wool is filled between the butt joint positions of the first corner main heat insulation layer and the second corner main heat insulation layer.
8. The thin-film enclosure system of claim 1, wherein in the corner region where the three sides intersect, the main insulating layer comprises a third main insulating layer, a fourth main insulating layer and a fifth main insulating layer which are butted in pairs, and glass wool is filled in the butted positions of the third main insulating layer, the fourth main insulating layer and the fifth main insulating layer; the secondary heat insulation layer comprises a third angle area secondary heat insulation layer, a fourth angle area secondary heat insulation layer and a fifth angle area secondary heat insulation layer, and glass wool is filled at the butt joint position of the third angle area secondary heat insulation layer, the fourth angle area secondary heat insulation layer and the fifth angle area secondary heat insulation layer.
9. The thin-film enclosure system of claim 1, wherein in the corner areas where the two sides intersect, the first corner main insulating layer and the second corner main insulating layer are respectively provided with a butt joint folded edge, the butt joint folded edge of the first corner main insulating layer and the butt joint folded edge of the second corner main insulating layer are butt-jointed to form a main layer insulating layer inclined plane, and the butt joint positions of the butt joint folded edges are filled with glass wool.
10. The thin-film enclosure system of claim 9, wherein in the corner region where the two surfaces intersect, the main layer sealing layer is an integrated stainless steel metal plate, the stainless steel metal plate of the main layer sealing layer comprises a first sealing surface, a second sealing surface and a third sealing surface which are sequentially arranged, and the first sealing surface, the second sealing surface and the third sealing surface are respectively attached to the first corner main heat insulation layer, the main heat insulation layer inclined surface and the second corner main heat insulation layer.
11. A thin film containment system according to claim 3, wherein in the planar region, the primary and secondary insulation layers are each provided with stress relief grooves, the stress relief grooves being spaced apart in conformity with the corrugation spacing of the corrugated board.
12. A thin film containment system as claimed in claim 3, wherein anchor strips are mounted on the primary and secondary insulation layers in the planar region, respectively, and the corrugated plate is welded to the anchor strips.
13. The membrane enclosure system of claim 1, wherein foam plugs are also installed in the clamping slots to fill the clamping slots.
14. The thin-film enclosure system of claim 1, wherein waist round holes are respectively formed in four corners of the sub-layer clamping plate, fasteners are arranged in the waist round holes in a penetrating mode, and the sub-layer clamping plate is connected with the connecting blocks through the fasteners.
15. The thin film containment system of claim 14, wherein the secondary deck cards span at least two adjacent secondary deck insulation connection blocks, and the primary deck cards snap into at least two adjacent primary deck insulation snap-in grooves.
16. The thin film containment system of claim 1, wherein primary shielding spaces are formed between adjacent primary insulation layers and between primary insulation layers and primary sealing layers, and secondary shielding spaces are formed between adjacent secondary insulation layers and between secondary insulation layers and secondary sealing layers.
17. The thin film enclosure system of claim 16 wherein the primary and secondary shield spaces are filled with an inert shielding gas, and wherein the primary and secondary shield spaces are further provided with temperature and combustible gas sensors.
18. The thin film containment system of claim 1, wherein the edges of the sub-layer insulation are provided with temporary fixing bolt holes for temporary fixing of the sub-layer insulation.
19. The thin film containment system of claim 8, wherein the first and second primary insulation layers comprise an angle of 90 ° or 135 °.
20. The thin film containment system of claim 14, wherein the bottom of the connection block is provided with a pre-buried nut, and the fastener is threaded through the connection block and is connected with the pre-buried nut.
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| CN202311321876.1A CN117068326B (en) | 2023-10-13 | 2023-10-13 | Film type enclosure system |
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| CN202311321876.1A CN117068326B (en) | 2023-10-13 | 2023-10-13 | Film type enclosure system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117818821B (en) * | 2024-03-06 | 2024-06-11 | 沪东中华造船(集团)有限公司 | Film type enclosure system for low-temperature liquid cargo storage and transportation |
| CN117818822B (en) * | 2024-03-06 | 2024-06-11 | 沪东中华造船(集团)有限公司 | Corner area module of film type low-temperature liquid cargo containment system |
| CN117818844B (en) * | 2024-03-06 | 2024-06-11 | 沪东中华造船(集团)有限公司 | Method for installing thin film type enclosure system for low-temperature liquid cargo storage and transportation |
| CN118270179B (en) * | 2024-06-04 | 2024-09-27 | 中太(苏州)氢能源科技有限公司 | Integrated mounting structure for marine equipment and storage container with same |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103635737A (en) * | 2011-07-06 | 2014-03-12 | 气体运输技术公司 | Coupler for maintaining element in position in relation to retaining structure |
| CN107820554A (en) * | 2015-07-06 | 2018-03-20 | 气体运输技术公司 | The sealing insulated tank for the secondary diaphragm seal arranged equipped with the turning of wavy metal plate |
| CN107923574A (en) * | 2015-10-23 | 2018-04-17 | 气体运输技术公司 | Container containing the heat-insulated comer block equipped with stress relief grooves |
| CN110537051A (en) * | 2017-03-15 | 2019-12-03 | 气体运输技术公司 | The container of sealing and insulation including enhancing heat-insulating plug |
| CN111279116A (en) * | 2017-09-04 | 2020-06-12 | 气体运输技术公司 | Sealed and thermally insulated container with a convection-proof filling element |
| CN112303475A (en) * | 2020-11-06 | 2021-02-02 | 中太海事技术(上海)有限公司 | A bimetal low temperature film land storage tank for liquefied natural gas stores |
| CN112498584A (en) * | 2020-10-30 | 2021-03-16 | 沪东中华造船(集团)有限公司 | LNG ship, film type containment system |
| CN112498583A (en) * | 2020-10-30 | 2021-03-16 | 沪东中华造船(集团)有限公司 | Thin film type enclosure system and LNG ship |
| CN113719744A (en) * | 2020-05-26 | 2021-11-30 | 气体运输技术公司 | Anchoring device for holding an insulating block |
| CN114008374A (en) * | 2020-05-26 | 2022-02-01 | 气体运输技术公司 | Anchoring device for retaining insulation blocks |
| CN116605343A (en) * | 2023-06-26 | 2023-08-18 | 沪东中华造船(集团)有限公司 | Transverse ring insulation box structure of LNG ship containment system and installation method thereof |
-
2023
- 2023-10-13 CN CN202311321876.1A patent/CN117068326B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103635737A (en) * | 2011-07-06 | 2014-03-12 | 气体运输技术公司 | Coupler for maintaining element in position in relation to retaining structure |
| CN107820554A (en) * | 2015-07-06 | 2018-03-20 | 气体运输技术公司 | The sealing insulated tank for the secondary diaphragm seal arranged equipped with the turning of wavy metal plate |
| CN107923574A (en) * | 2015-10-23 | 2018-04-17 | 气体运输技术公司 | Container containing the heat-insulated comer block equipped with stress relief grooves |
| CN110537051A (en) * | 2017-03-15 | 2019-12-03 | 气体运输技术公司 | The container of sealing and insulation including enhancing heat-insulating plug |
| CN111279116A (en) * | 2017-09-04 | 2020-06-12 | 气体运输技术公司 | Sealed and thermally insulated container with a convection-proof filling element |
| CN113719744A (en) * | 2020-05-26 | 2021-11-30 | 气体运输技术公司 | Anchoring device for holding an insulating block |
| CN114008374A (en) * | 2020-05-26 | 2022-02-01 | 气体运输技术公司 | Anchoring device for retaining insulation blocks |
| CN112498584A (en) * | 2020-10-30 | 2021-03-16 | 沪东中华造船(集团)有限公司 | LNG ship, film type containment system |
| CN112498583A (en) * | 2020-10-30 | 2021-03-16 | 沪东中华造船(集团)有限公司 | Thin film type enclosure system and LNG ship |
| CN112303475A (en) * | 2020-11-06 | 2021-02-02 | 中太海事技术(上海)有限公司 | A bimetal low temperature film land storage tank for liquefied natural gas stores |
| CN116605343A (en) * | 2023-06-26 | 2023-08-18 | 沪东中华造船(集团)有限公司 | Transverse ring insulation box structure of LNG ship containment system and installation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| LNG接收站薄膜型储罐技术研究;宋忠兵;徐岸南;刘恒;;船舶与海洋工程(第06期);全文 * |
| 薄膜型LNG 货物围护系统模拟舱的建造关键技术;谷运飞等;船舶与海洋工程;第31卷(第2期);全文 * |
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