CN114228914A - Heat insulation system of B-type liquid cargo tank and B-type liquid cargo tank - Google Patents
Heat insulation system of B-type liquid cargo tank and B-type liquid cargo tank Download PDFInfo
- Publication number
- CN114228914A CN114228914A CN202210126040.5A CN202210126040A CN114228914A CN 114228914 A CN114228914 A CN 114228914A CN 202210126040 A CN202210126040 A CN 202210126040A CN 114228914 A CN114228914 A CN 114228914A
- Authority
- CN
- China
- Prior art keywords
- cargo tank
- heat insulation
- wall surface
- liquid cargo
- base plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 113
- 239000007788 liquid Substances 0.000 title claims abstract description 62
- 239000000758 substrate Substances 0.000 claims abstract description 17
- 125000006850 spacer group Chemical group 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 9
- 239000010410 layer Substances 0.000 description 117
- 239000007789 gas Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003949 liquefied natural gas Substances 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229920006327 polystyrene foam Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229920002396 Polyurea Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The application discloses a heat insulation system of a B-type liquid cargo tank and the B-type liquid cargo tank, wherein the liquid cargo tank is positioned in a ship body, a plurality of supporting structures are respectively arranged on the outer wall surface of the liquid cargo tank, each supporting structure comprises a base plate and a plurality of rib plates arranged on the base plate, the base plate and the outer wall surface of the liquid cargo tank are separated by a preset distance, and the rib plates are fixed on the outer wall surface of the liquid cargo tank; the heat insulation system comprises a heat insulation inner layer and a heat insulation outer layer, wherein the heat insulation inner layer is configured to be a prefabricated plate and is limited between the outer wall surface of the liquid cargo tank and the base plate; the heat insulation inner layer is provided with a top and a bottom, the top is attached to the outer wall surface of the liquid cargo tank and provided with a plurality of concave cavities, all the concave cavities are communicated with each other and form a channel which can be freely and smoothly formed together, and the bottom is positioned on one side of the heat insulation inner layer close to the base plate and provided with a plurality of grooves for nesting the rib plates; an insulating outer layer at least partially covers the insulating inner layer and the substrate. The construction difficulty of the heat insulation system is small, the heat insulation protection can be provided for the support structure arrangement area on the outer wall surface of the liquid cargo tank, and the heat insulation effect of the heat insulation system is improved.
Description
Technical Field
The application relates to the technical field of liquefied gas carriers, in particular to a heat insulation system of a B-type liquid cargo tank and the B-type liquid cargo tank.
Background
A liquefied gas carrier is a special vessel for transporting low-temperature liquid cargo such as liquefied petroleum gas, liquefied natural gas, and the like, and the liquid cargo is loaded in a liquid cargo tank in the liquefied gas carrier. According to the type and the working scene of the loaded liquid cargo, the liquid cargo tank is divided into three types: the liquid cargo tank is mainly of a flat plate structure and is provided with complete secondary shielding; the B-type liquid cargo tank is of a flat plate structure or a spherical tank structure and is provided with a local secondary shield; the C-tank is a spherical tank type structure that does not require secondary shielding. The temperature of the liquid cargo in the liquid cargo tank is lower, the external temperature is far greater than the temperature of the liquid cargo, and then the liquid cargo tank needs to be provided with a heat insulation system to achieve the purposes of heat preservation and preventing external heat from carrying out the liquid cargo tank, and the evaporation capacity of the liquid cargo in the liquid cargo tank is reduced. Due to the different structural characteristics and performance requirements of the three cargo tanks, the insulation systems corresponding to the three cargo tanks are also different.
For B type cargo tank, its structure is comparatively complicated, need link to each other with the hull through numerous bearing structure, above-mentioned numerous bearing structure can prevent rolling support including the top surface, the bottom surface is prevented rolling support, prevent pitching support, vertical support and combination support etc. these bearing structure's structure is comparatively complicated, and installation space on cargo tank is very narrow and small, when setting up adiabatic system for B type cargo tank, because of the construction degree of difficulty in bearing structure department is very high, thereby can not set up the adiabatic system of rule in bearing structure department, make the adiabatic effect of the adiabatic system of current B type cargo tank relatively poor.
Therefore, it is an urgent need in the art to provide an insulation system for a B-type cargo tank and a B-type cargo tank to provide insulation protection for a region where a complex support structure is installed in the cargo tank and to improve the overall insulation effect of the insulation system.
Disclosure of Invention
The utility model provides an adiabatic system of B type cargo tank, its construction degree of difficulty is less, and can set up regional adiabatic protection that provides to bearing structure on the outer wall surface of cargo tank, effectively improves adiabatic system's adiabatic effect.
Another object is to provide a type B tank which employs the above-described insulation system for the type B tank.
In a first aspect, an embodiment of the present application provides an insulation system for a B-type cargo tank, where the cargo tank is located in a ship body, a plurality of support structures are respectively disposed on an outer wall surface of the cargo tank, each support structure includes a base plate and a plurality of rib plates disposed on an upper surface of the base plate, the base plate is spaced from the outer wall surface of the cargo tank by a preset distance, and the rib plates are fixed on the outer wall surface of the cargo tank and correspond to a frame structure inside the cargo tank; the above-mentioned heat insulation system comprises:
a heat insulating inner layer configured as a prefabricated panel and confined between an outer wall surface of the cargo tank and the base plate; the heat insulation inner layer is provided with a top and a bottom, the top is attached to the outer wall surface of the liquid cargo tank and provided with a plurality of concave cavities, all the concave cavities are communicated with each other and form a channel which can be freely and smoothly formed together, and the bottom is positioned on one side of the heat insulation inner layer close to the base plate and provided with a plurality of grooves for nesting the rib plates;
and the heat insulation outer layer at least partially covers the heat insulation inner layer and the substrate.
In one possible embodiment, the insulating outer layer comprises:
the panel layer is positioned between the heat insulation inner layer and the substrate and fills a reserved gap between the heat insulation inner layer and the substrate;
and the corner layer is connected with the panel layer and covers the lower surface of the substrate.
In a possible embodiment, the thickness of the thermally insulating inner layer is less than or equal to half the distance between the base plate and the outer wall of the tank.
In a possible embodiment, the thickness of the thermally insulating inner layer is equal to the distance between the base plate and the outer wall of the tank.
In a possible embodiment, the lower surface of the substrate is provided with a surrounding plate, and the thickness of the heat-insulating outer layer at the substrate, which exceeds the surrounding plate, is 10-30 mm.
In one possible embodiment, the coaming defines an annular space in which is disposed a thermally insulating pad that abuts an inner wall surface of the hull; the heat insulation outer layer is abutted to the heat insulation cushion block.
In a possible embodiment, the bottom of the cavity is spaced from the outer wall of the tank by 10 to 25 mm.
In one possible embodiment, a detector is provided within the cavity for detecting the respective or target gas.
In a possible embodiment, the non-support-structure-provided region in the outer wall of the tank is provided with insulation panels which are fastened to the outer wall of the tank by means of bolts.
In a second aspect, embodiments of the present application provide a type B cargo tank that includes the insulation system of the type B cargo tank of the above embodiments.
Compared with the prior art, the beneficial effects of this application are as follows at least:
the supporting structure comprises a base plate and a plurality of rib plates arranged on the base plate, a heat insulation inner layer is arranged between the outer wall surface of the liquid cargo tank and the base plate, the top of the heat insulation inner layer is attached to the outer wall surface of the liquid cargo tank and is provided with a plurality of cavities, the cavities are mutually communicated and can provide a free and smooth channel for liquid cargo leaked from the liquid cargo tank, a plurality of grooves used for nesting the rib plates are formed in the bottom of the heat insulation inner layer, the rib plates are nested in the grooves in the heat insulation inner layer, and heat insulation protection of the supporting structure and the liquid cargo tank can be achieved. The application provides an adiabatic system construction degree of difficulty is less, and can set up the region to provide adiabatic protection to bearing structure on the outer wall surface of cargo tank, has effectively improved adiabatic system's adiabatic effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic structural view of an insulation system of a type B cargo tank according to an embodiment of the present application;
FIG. 2 is a schematic structural view of an insulation system of a type B cargo tank according to an embodiment of the present application;
FIG. 3 is a schematic structural view of an insulating inner layer according to an embodiment of the present application;
FIG. 4 is a top view of an insulating inner layer according to an embodiment of the present application;
FIG. 5 is a top view of an insulating inner layer according to an embodiment of the present application;
FIG. 6 is a top view of an insulating inner layer according to an embodiment of the present application;
FIG. 7 is a top view of an insulating inner layer according to an embodiment of the present application;
FIG. 8 is a top view of an insulating inner layer according to an embodiment of the present application;
FIG. 9 is a top view of an insulating inner layer according to an embodiment of the present application;
FIG. 10 is a top view of an insulating inner layer according to an embodiment of the present application;
FIG. 11 is a top view of an insulating inner layer according to an embodiment of the present application.
Illustration of the drawings:
100 liquid cargo tanks; 110 a frame structure; 200 a support structure; 210 a substrate; 220 ribs; 230 enclosing plates; 300 an insulation system; 310 thermally insulating the inner layer; 311 a cavity; 312 grooves; 320 a thermally insulating outer layer; 321 panel layer; 322 a corner layer; 330 heat insulation cushion blocks; 340 an insulating plate; 350 a crack arrest mesh layer; 400 hull.
Detailed Description
The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The present application is capable of other and different embodiments and its several details are capable of modifications and variations in various respects, all without departing from the spirit of the present application.
In the description of the present application, it is to be noted that the terms "upper", "lower", "top" and "bottom", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. Furthermore, the terms "first" and "second," etc. are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
The liquefied gas carrier is a special vessel for transporting low-temperature liquid cargo such as liquefied petroleum gas and liquefied natural gas, and comprises a ship body and a liquid cargo tank positioned in the ship body, wherein the liquid cargo tank is used for loading the liquid cargo. When the liquid cargo tank is a B-type liquid cargo tank, a plurality of supporting structures are arranged on the outer wall surface of the liquid cargo tank, and the supporting structures comprise but are not limited to a top surface anti-rolling support, a bottom surface anti-rolling support, an anti-pitching support, a vertical support and a combined support. Each support structure comprises a base plate and a plurality of ribbed plates, the base plate is separated from the outer wall surface of the liquid cargo tank by a preset distance, and the ribbed plates are arranged on the surface, facing the outer wall surface of the liquid cargo tank, of the base plate and fixed on the outer wall surface of the liquid cargo tank. The ribs correspond to the frame structure inside the tank.
Because the distance between the base plate and the outer wall surface of the liquid cargo tank is small, it is difficult to arrange a heat insulation system in the support structure arrangement area on the outer wall surface of the liquid cargo tank by using the conventional construction method and construction conditions, so that heat insulation protection is provided for the support structure arrangement area on the outer wall surface of the liquid cargo tank. However, it is also necessary to provide the insulation system in the region of the outer wall of the tank where the support structure is to be arranged. In order to solve the technical problem, the inventor fills the heat insulation inner layer between the liquid cargo tank and the base plate, the bottom of the heat insulation inner layer is provided with a plurality of grooves used for embedding rib plates, and the rib plates are embedded in the grooves in the heat insulation inner layer, so that the heat insulation protection of the supporting structure and the liquid cargo tank can be realized, the construction difficulty is reduced, the heat insulation protection can be provided for the supporting structure arrangement area on the outer wall surface of the liquid cargo tank, and the heat insulation effect of a heat insulation system is improved.
According to one aspect of the present application, there is provided an insulation system for a type B cargo tank. The cargo tank 100 is located in the hull 400, the plurality of support structures 200 are respectively arranged on the outer wall surface of the cargo tank 100, each support structure 200 comprises a base plate 210 and a plurality of rib plates 220 arranged on the upper surface of the base plate 210, the base plate 210 is separated from the outer wall surface of the cargo tank 100 by a preset distance, and the rib plates 220 are fixed on the outer wall surface of the cargo tank 100 and correspond to the frame structures 110 in the cargo tank 100.
Referring to fig. 1 and 3, the insulation system 300 includes an inner insulating layer 310 and an outer insulating layer 320. The insulating inner layer 310 is configured as a prefabricated panel, preferably made of rigid polyurethane or polystyrene material; the insulating inner layer 310 is confined between the outer wall surface of the cargo tank 100 and the base plate 210. The heat-insulating inner layer 310 has a top part and a bottom part, wherein the top part refers to the side part of the heat-insulating inner layer 310 facing the cargo tank 100, the bottom part refers to the side part of the heat-insulating inner layer 310 facing the base plate 210, the top part is attached to the outer wall surface of the cargo tank 100 and is provided with a plurality of cavities 311, all the cavities 311 in the heat-insulating inner layer 310 are communicated with each other and form a free and open channel together, and the channel can discharge the cargo tank leaked from the cargo tank 100 into a collecting container at the bottom of the ship body 400 when the cargo tank 100 slightly leaks; the bottom is on the side of the thermally insulating inner layer 310 adjacent the base plate 210 and is provided with a plurality of grooves 312 for nesting the ribs 220. An insulating outer layer 320 at least partially covers insulating inner layer 310 and substrate 210.
An insulating inner layer 310 is arranged between the outer wall surface of the cargo tank 100 and the base plate 210, the top of the insulating inner layer 310 is attached to the outer wall surface of the cargo tank 100, and a plurality of concave cavities 311 are arranged, wherein the concave cavities 311 can provide a free and unblocked channel for the liquid cargo leaked from the cargo tank 100, so that the blockage phenomenon is avoided when the cargo tank 100 is subjected to micro-leakage; the bottom of the inner insulating layer 310 is provided with a plurality of grooves 312 for nesting the ribs 220, and the ribs 220 are nested in the grooves 312 in the inner insulating layer 310, so that the support structure 200 and the cargo tank 100 can be protected in an insulating way. Each rib 220 has a corresponding groove 312, and the shape of the groove 312 matches the shape of the rib 220 corresponding thereto, so that the insulation system 300 can be applied to different kinds or different structures of the support structure 200. The heat insulation system 300 is less difficult to construct, and can provide heat insulation protection for the support structure arrangement area on the outer wall surface of the cargo tank 100, thereby effectively improving the heat insulation effect of the heat insulation system 300.
By way of example, referring to FIG. 1, the insulating outer layer 320 includes a face layer 321 and a corner layer 322. The panel layer 321 is located between the insulating inner layer 310 and the base plate 210 and fills a gap reserved between the insulating inner layer 310 and the base plate 210 to restrict the movement of the insulating inner layer 310 toward the cargo tank 100 side or toward the base plate 210 side. The corner layer 322 is connected to the panel layer 321 and covers the lower surface of the substrate 210.
Preferably, the panel layer 321 and the corner layer 322 are both foamed layers formed of foamed polyurethane or polystyrene foam, which can further improve the thermal insulation performance of the thermal insulation system 300.
Preferably, the thickness of the inner layer 310 is preferably less than or equal to one-half of the distance between the base plate 210 and the outer wall of the tank 100. The insulating inner layer 310 is maintained at a suitable thickness to provide a free and open passage for liquid cargo leaking from the cargo tank 100, and the insulating inner layer 310 and the base plate 210 are further filled with a panel layer 321 to improve the insulating performance of the insulating system 300.
Preferably, a crack-stopping net layer 350 is arranged between the panel layer 321 and the heat-insulating inner layer 310, the crack-stopping net layer 350 is preferably made of a glass fiber grid, and the main component of the glass fiber grid is silicon oxide, so that the glass fiber grid has stable physical and chemical properties, high strength, high modulus, high wear resistance, excellent cold resistance and excellent heat stability. The crack stop web layer 350 interlocks and restrains the panel layer 321 to improve the low temperature shrinkage resistance of the panel layer 321.
The panel layer 321 is sprayed to the reserved gap between the heat insulation inner layer 310 and the substrate 210, after the panel layer 321 is cooled and fixed, the crack arrest mesh layer 350 is bonded with the panel layer 321, and the crack arrest mesh layer 350 is equivalent to providing a shape fixing mesh for the panel layer 321, so that the deformation of the panel layer 321 can be avoided, the low-temperature shrinkage performance of the panel layer 321 can be improved, the possibility of shrinkage cracks of the panel layer 321 is reduced, and the heat insulation effect of the heat insulation system 300 is ensured and the stability of the heat insulation system 300 is prolonged.
As an example, referring to fig. 2, the thickness of the heat insulating inner layer 310 is equal to the distance between the base plate 210 and the outer wall surface of the cargo tank 100, in other words, the heat insulating inner layer 310 is completely filled in the space formed by the base plate 210 and the outer wall surface of the cargo tank 100, and the bottom of the heat insulating inner layer 310 abuts against the upper surface of the base plate 210. An insulating outer layer 320 is positioned about the periphery of the insulating inner layer 310 and at least partially covers the insulating inner layer 310 and the substrate 210.
Preferably, the insulating outer layer 320 is a foamed layer formed of foamed polyurethane or polystyrene foam, which can further improve the insulating performance of the insulating system 300. The heat insulation system 300 has the advantages of convenient construction and disassembly, when the heat insulation inner layer 310 needs to be replaced, only the heat insulation outer layer 320 on the periphery of the heat insulation inner layer 310 needs to be dug out, the original heat insulation inner layer 310 is taken out, a new heat insulation inner layer 310 is installed in situ, and the new heat insulation outer layer 320 is filled.
By way of example, each rib 220 in the support structure 200 has a groove 312 corresponding thereto, and the shape of the groove 312 matches the shape of its corresponding rib 220. Because the different ribs 220 in the supporting structure 200 have different structures and the grooves 312 corresponding to the different ribs 220 have different structures, when the heat insulation system 300 is provided for the supporting structures 200 of different types or different structures, only the grooves 312 corresponding to the ribs 220 need to be provided on the heat insulation inner layer 310 according to the structures of the ribs 220, so that the heat insulation system 300 can be applied to the supporting structures 200 of different types or different structures. In this embodiment, as shown in fig. 3, the groove 312 may be further divided into a short groove and a long groove.
As an example, the bottom surface of the well 311 is preferably spaced from the outer wall surface of the cargo tank 100 by 10 to 25 mm. A detector (not shown) for detecting the corresponding or target gas is disposed in the cavity 311. The cavity 311 in which the detector is arranged still leaves a certain space for the gas to circulate inside this cavity 311. In this embodiment, four support structures 200 are provided on the outer wall surface of the cargo tank 100, the four support structures 200 are respectively provided in the front, rear, left and right directions of the cargo tank 100, and one detector is provided in each support structure 200.
As an example, several cavities 311 are arranged on top of the inner insulating layer 310 according to the leakage amount and the leakage rate, wherein the arrangement of the cavities 311 can be adjusted according to the structure at the location of the support structure, and the above requirements are met, so that no accumulation of leaked liquid cargo occurs. The specific structure of the concave cavity 311 includes the following forms:
for example, as shown in fig. 4, the top of the heat insulating inner layer 310 is provided with a recessed portion recessed with respect to the top surface of the heat insulating inner layer 310, the recessed portion constitutes the cavity 311, and the cavity surface of the cavity 311 is preferably an arc surface. The adjacent cavities 311 are communicated with each other through a channel, and the channel between the adjacent cavities 311 is not shown in fig. 4.
As shown in fig. 5 to 9, the top of the heat insulating inner layer 310 is provided with a convex portion that protrudes from the top surface of the heat insulating inner layer 310, the concave cavity 311 is formed in a region between adjacent convex portions, the bottom surface of the concave cavity 311 is a flat surface, and the convex portion has a spherical, cylindrical, or cubic shape.
For another example, as shown in fig. 10 and 11, the cavity 311 has two structures, specifically, a first cavity and a second cavity, the first cavity is a recessed portion provided on the top of the heat insulating inner layer 310 and recessed with respect to the top surface of the heat insulating inner layer 310, adjacent first cavities are communicated with each other through a channel, and the channel between adjacent first cavities is not shown in fig. 10 and 11; the second cavity is the area between raised portions provided on the top of the insulating inner layer 310 that are raised relative to the top surface of the insulating inner layer 310; the first cavity is preferably disposed within the second cavity (fig. 10), the first cavity coinciding with the second cavity (fig. 11).
Referring to fig. 1 and 2, by way of example, the lower surface of the base plate 210 is provided with a shroud 230, the shroud 230 defining an annular space in which a heat insulating block 330 is disposed, the heat insulating block 330 abutting against the inner wall surface of the hull 400. The insulating blocks 330 are preferably structures having good insulating properties, which may be, in particular, wood plates, capable of preventing low temperatures in the cargo tank 100 from being directly transferred to the hull 400.
Preferably, the heat insulation outer layer 320 abuts against the heat insulation pad 330, and the thickness of the heat insulation outer layer 320 at the substrate 210 beyond the enclosure 230 is preferably 10 to 30 mm. In this embodiment, the thickness of the insulating outer layer 320 at the base 210 beyond the shroud 230 is 15 mm.
As an example, referring to fig. 1 and 2, the non-support structure installation area in the outer wall surface of the cargo tank 100 is provided with an insulation panel 340, and the insulation panel 340 is configured as a prefabricated panel, which is preferably made of a rigid polyurethane or polystyrene material. The insulation panels 340 are fastened to the outer wall surface of the tank 100 by bolts, and provide insulation protection to the non-support structure-installed areas of the outer wall surface of the tank 100.
Preferably, the insulating outer layer 320 also partially covers the insulation sheeting 340 at the non-support structure placement area.
As an example, the outer surface of the heat insulating outer layer 320 is provided with a protective layer, and the material of the protective layer includes, but is not limited to, aluminum foil, plastic, glass fiber reinforced plastic, or polyurea. In this embodiment, the material of the protective layer is preferably aluminum foil.
According to one aspect of the present application, there is provided a type B tank comprising the insulation system of the type B tank of the above embodiments.
According to the above technical solution, the support structure 200 includes the base plate 210 and the plurality of ribs 220 disposed on the base plate 210, the heat insulation inner layer 310 is disposed between the outer wall surface of the cargo tank 100 and the base plate 210, the top of the heat insulation inner layer 310 is attached to the outer wall surface of the cargo tank 100 and is provided with the plurality of cavities 311, the cavities 311 are communicated with each other and can provide a free and open channel for the cargo tank 100 leaking, the bottom of the heat insulation inner layer 310 is provided with the plurality of grooves 312 for nesting the ribs 220, and the ribs 220 are nested in the grooves 312 in the heat insulation inner layer 310, so that the heat insulation protection of the support structure 200 and the cargo tank 100 can be realized. The heat insulation system 300 that this application provided the construction degree of difficulty is less, and can set up the regional heat insulation protection that provides of bearing structure on the outer wall of cargo tank 100, has effectively improved heat insulation system 300's adiabatic effect.
The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and substitutions can be made without departing from the technical principle of the present application, and these modifications and substitutions should also be regarded as the protection scope of the present application.
Claims (10)
1. A heat insulation system of a B-type liquid cargo tank is characterized in that the liquid cargo tank is positioned in a ship body, a plurality of support structures are respectively arranged on the outer wall surface of the liquid cargo tank, each support structure comprises a base plate and a plurality of rib plates arranged on the upper surface of the base plate, the base plate and the outer wall surface of the liquid cargo tank are separated by a preset distance, and the rib plates are fixed on the outer wall surface of the liquid cargo tank and correspond to a frame structure in the liquid cargo tank; characterized in that said insulation system comprises:
a thermally insulating inner layer configured as a prefabricated panel and confined between the outer wall surface of the cargo tank and the base plate; the heat insulation inner layer is provided with a top and a bottom, the top is attached to the outer wall surface of the liquid cargo tank and provided with a plurality of concave cavities, all the concave cavities are communicated with each other and form a channel which can be freely and smoothly communicated, and the bottom is positioned on one side of the heat insulation inner layer close to the base plate and provided with a plurality of grooves for nesting the rib plates;
a thermally insulating outer layer at least partially covering the thermally insulating inner layer and the substrate.
2. The insulation system for a tank vessel of type B according to claim 1 wherein said outer insulating layer comprises:
the panel layer is positioned between the heat insulation inner layer and the substrate and fills a reserved gap between the heat insulation inner layer and the substrate;
and the corner layer is connected with the panel layer and covers the lower surface of the substrate.
3. The insulation system for a type B cargo tank according to claim 2 wherein the thickness of the insulating inner layer is equal to or less than one-half of the distance between the base plate and the outer wall surface of the tank.
4. The insulation system for a tank B of claim 1 wherein the thickness of the inner insulation layer is equal to the distance between the base plate and the outer wall surface of the tank.
5. The heat insulation system for the type-B cargo tank according to claim 1, wherein the lower surface of the base plate is provided with a surrounding plate, and the thickness of the heat insulation outer layer at the base plate, which exceeds the surrounding plate, is 10-30 mm.
6. The thermal insulation system for a type B cargo tank according to claim 5 wherein the shroud defines an annular space, and wherein a thermally insulating spacer is disposed in the annular space and abuts against an inner wall surface of the hull; the heat insulation outer layer is abutted to the heat insulation cushion block.
7. The insulation system for a tank B according to claim 1, wherein the bottom surface of the cavity is spaced from the outer wall surface of the tank by 10 to 25 mm.
8. The insulation system for a tank vessel according to claim 1 wherein a detector for detecting a respective or target gas is located within the cavity.
9. The insulation system for a type B cargo tank according to claim 1, wherein an area of the outer wall surface of the cargo tank where the non-support structure is provided with insulation panels, and the insulation panels are fixed to the outer wall surface of the cargo tank by bolts.
10. A type B cargo tank comprising an insulation system of the type B cargo tank according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210126040.5A CN114228914A (en) | 2022-02-10 | 2022-02-10 | Heat insulation system of B-type liquid cargo tank and B-type liquid cargo tank |
| PCT/CN2022/086421 WO2023151178A1 (en) | 2022-02-10 | 2022-04-12 | Heat insulation system of b-type liquid cargo tank and b-type liquid cargo tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210126040.5A CN114228914A (en) | 2022-02-10 | 2022-02-10 | Heat insulation system of B-type liquid cargo tank and B-type liquid cargo tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114228914A true CN114228914A (en) | 2022-03-25 |
Family
ID=80747489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210126040.5A Pending CN114228914A (en) | 2022-02-10 | 2022-02-10 | Heat insulation system of B-type liquid cargo tank and B-type liquid cargo tank |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114228914A (en) |
| WO (1) | WO2023151178A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023151178A1 (en) * | 2022-02-10 | 2023-08-17 | 江南造船(集团)有限责任公司 | Heat insulation system of b-type liquid cargo tank and b-type liquid cargo tank |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100005293U (en) * | 2008-11-14 | 2010-05-25 | 대우조선해양 주식회사 | Insulation structure of independent type cargo tank in LPG carrier |
| CN102442408A (en) * | 2010-10-09 | 2012-05-09 | 江南造船(集团)有限责任公司 | Vertical supporting structure for cargo tank and inboard bottom of full-refrigerated liquefied gas carrier and mounting method of vertical supporting structure |
| JP2015039930A (en) * | 2013-08-21 | 2015-03-02 | 川崎重工業株式会社 | Liquid gas carrier ship or liquid gas carrier ship tank support structure |
| CN105523309A (en) * | 2014-09-29 | 2016-04-27 | 江南造船(集团)有限责任公司 | Insulation structure of type-B independent liquid cargo tank on liquefied gas carrier |
| CN105711756A (en) * | 2014-12-03 | 2016-06-29 | 江南造船(集团)有限责任公司 | Insulated mounting method for bottom-surface inside vertical supports of A-type independent liquid cargo tank |
| CN106080961A (en) * | 2016-06-14 | 2016-11-09 | 沪东中华造船(集团)有限公司 | The LNG of Type B containment system bottom support bracket reveals catching device and installation procedure |
| CN110126985A (en) * | 2019-05-25 | 2019-08-16 | 招商局重工（江苏）有限公司 | A kind of LNG ship flow container support device as secondary shielding a part |
| CN113335457A (en) * | 2021-07-19 | 2021-09-03 | 江南造船(集团)有限责任公司 | Liquid tank support with leakage liquid storage structure |
| CN214648865U (en) * | 2021-02-22 | 2021-11-09 | 悌埃深冷(上海)海洋工程有限公司 | Heat preservation system with secondary shielding protection function suitable for low temperature jar body |
| CN113815770A (en) * | 2021-10-15 | 2021-12-21 | 中国船舶工业集团公司第七0八研究所 | Insulating layer structure with water conservancy diversion function |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101751838B1 (en) * | 2015-08-21 | 2017-07-19 | 대우조선해양 주식회사 | Insulation structure of liquefied natural gas cargo tank without anchor strip, cargo tank having the structure, and liquefied natural gas carrier |
| KR101917185B1 (en) * | 2017-12-19 | 2018-11-09 | 주식회사 가스팩 | Liquefied cargo containment tank |
| CN209889063U (en) * | 2018-07-26 | 2020-01-03 | 沪东中华造船(集团)有限公司 | Vertical strutting arrangement of independent cargo tank funnel formula bottom of LNG |
| CN215514014U (en) * | 2021-08-19 | 2022-01-14 | 大连船舶重工集团有限公司 | Independent B-type liquid cargo tank bottom vertical supporting structure with leakage protection device |
| CN114228914A (en) * | 2022-02-10 | 2022-03-25 | 江南造船(集团)有限责任公司 | Heat insulation system of B-type liquid cargo tank and B-type liquid cargo tank |
-
2022
- 2022-02-10 CN CN202210126040.5A patent/CN114228914A/en active Pending
- 2022-04-12 WO PCT/CN2022/086421 patent/WO2023151178A1/en unknown
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100005293U (en) * | 2008-11-14 | 2010-05-25 | 대우조선해양 주식회사 | Insulation structure of independent type cargo tank in LPG carrier |
| CN102442408A (en) * | 2010-10-09 | 2012-05-09 | 江南造船(集团)有限责任公司 | Vertical supporting structure for cargo tank and inboard bottom of full-refrigerated liquefied gas carrier and mounting method of vertical supporting structure |
| JP2015039930A (en) * | 2013-08-21 | 2015-03-02 | 川崎重工業株式会社 | Liquid gas carrier ship or liquid gas carrier ship tank support structure |
| CN105523309A (en) * | 2014-09-29 | 2016-04-27 | 江南造船(集团)有限责任公司 | Insulation structure of type-B independent liquid cargo tank on liquefied gas carrier |
| CN105711756A (en) * | 2014-12-03 | 2016-06-29 | 江南造船(集团)有限责任公司 | Insulated mounting method for bottom-surface inside vertical supports of A-type independent liquid cargo tank |
| CN106080961A (en) * | 2016-06-14 | 2016-11-09 | 沪东中华造船(集团)有限公司 | The LNG of Type B containment system bottom support bracket reveals catching device and installation procedure |
| CN110126985A (en) * | 2019-05-25 | 2019-08-16 | 招商局重工（江苏）有限公司 | A kind of LNG ship flow container support device as secondary shielding a part |
| CN214648865U (en) * | 2021-02-22 | 2021-11-09 | 悌埃深冷(上海)海洋工程有限公司 | Heat preservation system with secondary shielding protection function suitable for low temperature jar body |
| CN113335457A (en) * | 2021-07-19 | 2021-09-03 | 江南造船(集团)有限责任公司 | Liquid tank support with leakage liquid storage structure |
| CN113815770A (en) * | 2021-10-15 | 2021-12-21 | 中国船舶工业集团公司第七0八研究所 | Insulating layer structure with water conservancy diversion function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023151178A1 (en) * | 2022-02-10 | 2023-08-17 | 江南造船(集团)有限责任公司 | Heat insulation system of b-type liquid cargo tank and b-type liquid cargo tank |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023151178A1 (en) | 2023-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101180742B1 (en) | Heat insulation panel for cryogenic liquid storage tank and heat insulation structure having the same | |
| US3935957A (en) | Insulation for double walled cryogenic storage tank | |
| JP2021017920A (en) | Liquefied gas storage tank and construction method thereof | |
| CN114228914A (en) | Heat insulation system of B-type liquid cargo tank and B-type liquid cargo tank | |
| KR101273433B1 (en) | Hybrid type lng insulation system of lng tank | |
| CN116857543B (en) | Enclosure system for low-temperature storage tank and mounting process thereof | |
| US11933456B2 (en) | Thermally insulating sealed tank | |
| CN212565283U (en) | Low-temperature jacket type open double-wall inner tank and storage tank | |
| CN212268413U (en) | Hot angle protection structure of low-temperature full-capacity storage tank | |
| CN115667785A (en) | Vacuum panel | |
| NO346586B1 (en) | Tank feasible for cryogenic service | |
| CN112278163A (en) | Low-temperature liquid cargo leakage protection device of independent liquid tank | |
| CN109436212B (en) | Liquid cargo tank containment system | |
| CN114408100A (en) | Heat insulation system of B-type liquid cargo tank and B-type liquid cargo tank | |
| KR101180960B1 (en) | Lng storage tank of floating structure having a means for reducing slosing | |
| CN113968312A (en) | Hybrid insulation structure of B-type independent liquid cargo tank and construction method thereof | |
| CN114771799B (en) | Refrigerating system for low-temperature cargo tank and low-temperature cargo tank | |
| KR20200091990A (en) | Insulation Structure of Liquefied Natural Gas storage Tank | |
| JPH05221380A (en) | Containing device for low temperature liquid | |
| KR102375114B1 (en) | Liquefied gas storage tank and vessel comprising the same | |
| CN219821692U (en) | Temporary collection device for low-temperature liquid tank leakage liquid | |
| KR102281934B1 (en) | Liquefied gas storage tank and vessel comprising the same | |
| KR101843863B1 (en) | Insulation structure of independent type storage tank and manufacturing method thereof | |
| JPH09165090A (en) | Low temperature storage tank | |
| JPS6244240Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220325 |