EP3392131B1 - Structure for connecting alternately stacked vacuum insulation panels of independent type liquefied gas storage tank - Google Patents
Structure for connecting alternately stacked vacuum insulation panels of independent type liquefied gas storage tank Download PDFInfo
- Publication number
- EP3392131B1 EP3392131B1 EP16875930.6A EP16875930A EP3392131B1 EP 3392131 B1 EP3392131 B1 EP 3392131B1 EP 16875930 A EP16875930 A EP 16875930A EP 3392131 B1 EP3392131 B1 EP 3392131B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vacuum insulation
- insulation panel
- pad
- liquefied gas
- storage tank
- 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.)
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Links
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- 238000003860 storage Methods 0.000 title claims description 32
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- 238000003825 pressing Methods 0.000 claims description 10
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- -1 polypropylene Polymers 0.000 claims description 6
- 239000011162 core material Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229910010272 inorganic material Inorganic materials 0.000 claims description 3
- 239000011147 inorganic material Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 239000004793 Polystyrene Substances 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
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- 239000004745 nonwoven fabric Substances 0.000 claims description 2
- 239000011368 organic material Substances 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 229920001225 polyester resin Polymers 0.000 claims description 2
- 239000004645 polyester resin Substances 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 2
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 2
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 2
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- 229920002223 polystyrene Polymers 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 2
- 239000010410 layer Substances 0.000 description 24
- 239000007789 gas Substances 0.000 description 23
- 239000003949 liquefied natural gas Substances 0.000 description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 239000003915 liquefied petroleum gas Substances 0.000 description 4
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- 239000007788 liquid Substances 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 239000011496 polyurethane foam Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
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- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
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Images
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
- F17C3/025—Bulk storage in barges or on ships
- F17C3/027—Wallpanels for so-called membrane tanks
-
- 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
- B63B2025/087—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid comprising self-contained tanks installed in the ship structure as separate units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0147—Shape complex
- F17C2201/0157—Polygonal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/052—Size large (>1000 m3)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/054—Size medium (>1 m3)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
- F17C2203/0304—Thermal insulations by solid means
- F17C2203/0358—Thermal insulations by solid means in form of panels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
- F17C2203/0391—Thermal insulations by vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/035—Propane butane, e.g. LPG, GPL
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/033—Small pressure, e.g. for liquefied gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/031—Dealing with losses due to heat transfer
- F17C2260/033—Dealing with losses due to heat transfer by enhancing insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0102—Applications for fluid transport or storage on or in the water
- F17C2270/0105—Ships
- F17C2270/0107—Wall panels
Definitions
- the present disclosure relates to a structure for connecting vacuum insulation panels of an independent type liquefied gas storage tank installed to store liquefied gas such as LNG or LPG.
- Natural gas is transported in a gas state through gas pipelines on land or sea, or transported to distant consumer sides in the form of Liquefied Natural Gas (LNG) or Liquefied Petroleum Gas (LPG) stored in a carrier.
- LNG is to liquefy natural gas, in which methane is main component, at minus 162°C under atmospheric pressure, the volume ratio of liquid to gas is about 1/600, and the weight of the liquefied state is 0.43-0.50.
- a LNG carrier for navigating the sea with LNG and unloading the LNG to demand sides on land, or LNG Regasification Vessel (RV) for navigating the sea with LNG to arrive demand sides on land and then regasificating the stored LNG to unload in a natural gas state includes a storage tank (often, referred to as "hold") that can withstand cryogenic liquefied natural gas.
- This storage tank can be classified into independent type and membrane type depending on whether or not the load of the cargo directly acts on the insulation material.
- the membrane type storage tank is divided into No 96 type and Mark III type
- the independent type storage tank is divided into MOSS type and SPB type.
- the structure of the MOSS type independent type storage tank is described in Korean Patent No. 10-15063 , etc
- the structure of the SPB type independent type storage tank is described in Korean Patent No. 10-30513 , etc.
- the independent type storage tank is made by attaching a relatively hard insulation panel such as polyurethane foam to a tank body made of an alloy such as aluminum alloy, SUS and 9% nickel, which is resistant to low temperature, and is located on a plurality of tank support bodies arranged on the inner bottom of a hull.
- a relatively hard insulation panel such as polyurethane foam
- a tank body made of an alloy such as aluminum alloy, SUS and 9% nickel, which is resistant to low temperature, and is located on a plurality of tank support bodies arranged on the inner bottom of a hull.
- a insulation structure of a liquefied gas storage tank in which a plurality of insulation panels manufactured by a polyurethane foam are installed on the exterior of a tank body is described in Korean Patent No. 10-166608 , etc.
- the insulation structure of the liquefied gas storage tank has the limitation in that the size of one insulation panel cannot be increased beyond a certain level upon installation of the insulation panel because the insulation panel has to have a predetermined thickness.
- Korean Patent Laid-Open Publication Nos. 10-2011-0051407 , 10-2011-0046627 , etc. provide including a stud bolt, a first insulation panel fitted to the stud bolt, a fixing member coupled to the stud bolt in order to fixedly maintain the first insulation panel, and a second insulation panel coupled to the fixing member and stacked on the first insulation panel.
- the interface of the insulation panel is stacked in a straight line, such that the length that the heat from the atmosphere reaches the tank surface is short and thereby, the insulation performance is reduced.
- the stud bolt, the fixing member, and the charging member such as an insulation material are filled therein, the heat can penetrate from the atmosphere to the tank surface through the gap, such that the insulation is not completely implemented.
- KR 2013 0125548 A describes a vacuum insulation panel comprising an foam filled with a gas for forming a vacuum by phase transition to a liquid at low temperatures.
- the present disclosure is intended to solve the above problems, and an object of the present disclosure is to provide a structure for connecting alternately stacked vacuum insulation panels of an independent type liquefied gas capable of alternately stacking the vacuum insulation panel on a tank body, thus lengthening the length that the heat from the atmosphere reaches the tank surface along the interface of the vacuum insulation panel to enhance the insulation performance, and having enhanced insulation performance while thinning the thickness of the insulation panel.
- a structure for connecting alternately stacked vacuum insulation panels of an independent type liquefied gas storage tank of the present disclosure for achieving the object includes a vacuum insulation panel having a core material and an outer cover that encompasses the core material and whose inside is formed in a vacuum; and as the structure for connecting the alternately stacked vacuum insulation panels of the independent type liquefied gas storage tank that continuously, alternately stacks the vacuum insulation panels in order to prevent heat loss at the exterior of a tank body of the liquefied gas storage tank, thus performing insulation, provided is the structure for connecting the alternately stacked vacuum insulation panels of the independent type liquefied gas storage tank, which includes a stud bolt installed at the exterior of the tank body, the vacuum insulation panel attached to the exterior of the tank body by the stud bolt, a pad fitted to the stud bolt in order to form a gap between the vacuum insulation panel layer and the tank body, and a fixing member for fixing the pad; and the vacuum insulation panel can be fixed by connecting another fixing member to the fixing member.
- the present disclosure as described above, it is possible to alternately stack the vacuum insulation panels that are continuously attached to the exterior of the tank body, thus lengthening the length that the heat from the atmosphere reaches the tank surface along the interface of the vacuum insulation panel to enhance insulation performance.
- FIG. 1 is a cross-sectional diagram for explaining a structure for connecting vacuum insulation panels in accordance with a preferred embodiment of the present disclosure
- FIG. 2 sequentially illustrates a process of connecting a mounting member and a vacuum insulation panel to the exterior of a tank body.
- the insulation structure of the independent type liquefied gas tank is formed by stacking a vacuum insulation panel 6 on the exterior of a tank body 1 to form a vacuum insulation panel layer.
- the vacuum insulation panel 6 is formed as an insulation material having a very low thermal conductivity so that the outer cover having a high shielding property including an aluminum thin film encompasses all surfaces of an organic-based or inorganicbased pore type core material.
- a plurality of the vacuum insulation panels 6 are continuously arranged adjacently to each other on the exterior of the tank body 1 of a storage tank to form a lower vacuum insulation panel layer 6b, and one or more layers of the vacuum insulation panel are alternately stacked on the lower vacuum insulation panel layer 6b to form an upper vacuum insulation panel layer 6a.
- the lower vacuum insulation panel layer 6b tightly does not adhere to the tank body 1, and a gap 9 is formed by a pad 2.
- the gap 9 between the tank body 1 and the lower vacuum insulation panel layer 6b can be utilized as a ventilation space and can be also utilized as a passage for leakage liquid upon leakage due to damage of the tank body 1.
- a stud bolt 51 is installed on the exterior of the tank body 1 at a regular interval.
- the stud bolt 51 can be fixedly mounted on the exterior of the tank body 1 by welding.
- the pad 2 having a predetermined thickness is fitted on the stud bolt 51.
- the pad 2 has a stepped portion in which the height of the center portion is lower than that of the circumference thereof, and has a through-groove formed at the center thereof. Accordingly, the stud bolt 51 passes through the through-groove formed in the stepped portion of the pad 2, and a first fixing member 3, which receives the end portion of the stud bolt 51, is screwed thereto. A lower end portion 52 of one side of the first fixing member 3 is screwed with the stud bolt 51 to fix so that a pressing protrusion 53 formed on the side surface of the first fixing member 3 presses the pad 2 to tightly adheres the pad 2 to the tank body 1.
- a stepped portion formed by a downwardly stepped empty space 8 is formed. Accordingly, even if the first fixing member 3 is fitted after penetrating the stud bolt 51 into the stepped portion, it does not become an obstacle that the pressing protrusion 53 pressing the vacuum insulation panel 6 in the first fixing member 3 is located within the empty space 8 of the stepped portion to tightly adhere and mount the vacuum insulation panel 6 to the upper vacuum insulation panel layer 6a.
- An extension screw thread is formed on an upper end portion 54 opposite to the lower end portion 52 where the stud bolt 51 is coupled in the first fixing member 3 in order to receive a lower end portion 71 of a second fixing member 4.
- Edges of the vacuum insulation panel 6 forming the lower vacuum insulation panel layer 6b are seated and fixed on the pad 2. That is, each edge of the vacuum insulation panel 6 forming the lower vacuum insulation panel layer 6b is seated and fixed on a different pad 2, respectively. That is, the pad 2 receives the apex portion where the edge of the vacuum insulation panel 6 meets, and the apex portion where another edge of the vacuum insulation panel 6 meets is received by another pad 2.
- the vacuum insulation panels 6 are continuously mounted on the pad 2 installed at a regular interval to encompass the tank body 1, and the size of the gap 9 between the tank body 1 and the vacuum insulation panel 6 can be kept constant by the pad 2.
- the vacuum insulation panel 6 of the lower vacuum insulation panel layer 6b having each edge caught and mounted on the pad 2 is fixed by screwing the second fixing member 4 to the first fixing member 3 fixing the pad 2.
- the second fixing member 4 is composed of a plate -shaped pressing plate 72 and the lower end portion 71 installed on the lower portion of the pressing plate 72, such that the pressing plate 72 presses and fixes the edges of each vacuum insulation panel 6 when the lower end portion 71 of the second fixing member 4 is coupled to the first fixing member 3. Accordingly, in the vacuum insulation panel 6, the mounting members including the stud bolt 51 and the first, second fixing members 3, 4 are received at the apex portion where the edge of the vacuum insulation panel 6 meets.
- an insulation pad 5 formed of a foam having the elasticity or an inorganic fiber base is filled in the empty space 8 of the stepped portion at the center of the pad 2 and between the adjacent vacuum insulation panels 6 in the vacuum insulation panel 6.
- the insulation pad 5 between the vacuum insulation panels 6 can be attached and mounted to the side surface of the vacuum insulation panel 6 in advance, or can be fitted and mounted after the vacuum insulation panel 6 is mounted.
- the width of the pad can change depending upon shrinkage or expansion of the tank body 1 as the liquefied gas is supplied or discharged.
- the vacuum insulation panel 6 is configured to be alternately stacked when the upper vacuum insulation panel layer 6a is stacked in plural on the lower vacuum insulation panel layer 6b.
- FIG. 3(a) when the stacked directional interface between adjacent vacuum insulation panels 6 is stacked in a straight line, the length that the heat from the atmosphere reaches the tank surface is relatively short, thus reducing the insulation performance.
- FIG. 3(b) when the vacuum insulation panels 6 are continuously stacked alternately, the stacked directional interface becomes zigzag and thereby, the length that the heat from the atmosphere reaches the tank surface is long, thus enhancing the insulation performance. This is based on the Fourier's law as follows
- Equation 1 The Fourier's law is as in the following Equation 1.
- Q ⁇ kA t 2 ⁇ t 1 / L (herein, Q: amount of heat transfer, A: cross-sectional area, k: thermal conductivity, t2-t1: temperature gradient, L: distance)
- the amount of the heat transfer is proportional to the cross-sectional area and inversely proportional to the distance with respect to the temperature gradient. That is, it can be seen that when the stacked directional interface of the vacuum insulation panels 6 is alternately stacked in a zigzag manner rather than stacked in a straight line, the length that the heat from the atmosphere reaches the tank surface is longer, thus minimizing the amount of heat and enhancing the insulation performance.
- At least one thereof can include a protection layer 81 on the vacuum insulation panel.
- the protection layer 81 protects the inner vacuum damage of the vacuum insulation panel from external temperature environment or pressure, and mechanical impact.
- FIG. 4 illustrates a case where the vacuum insulation panel including the protection layer 81 is stacked on the uppermost portion layer.
- the protection layer 81 can be stacked on the exterior of the vacuum insulation panel, and can be coated on the outer surface of the vacuum insulation panel.
- the protection layer 81 can be formed of an organic material sheet such as polypropylene, polyethylene, polystyrene, polyvinyl alcohol, polycarbonate, polymethyl methacrylate, and polyethylene terephthalate, or an inorganic material sheet such as foamed foam, nonwoven fabric, and glass fiber.
- a finishing material 7 is mounted on the uppermost portion layer of the stacked vacuum insulation panels 6.
- the finishing material can use a metal material sheet such as galvalume, aluminum, zinc, and stainless steel, or a composite material sheet of phenol resin, epoxy resin, polyester resin, and thermosetting resin reinforced with fiber such as carbon fiber, glass fiber, and rock wool, or a rubber sheet, or a wood plate material, etc.
- FIG. 5 A method of mounting the finishing material is illustrated in Fig. 5 .
- the finishing material 7 is mounted by tightly adhering to and being vertically bolted to the vacuum insulation panel 6 as illustrated in FIG. 5(a) , the vacuum formed inside the vacuum insulation panel 6 can be damaged. Accordingly, it is preferable to bend the finishing material 7 at 90 degrees to be horizontally bolted and fitted as illustrated in FIG. 5(b) , or as illustrated in FIG. 5(c) , to apply an adhesive between the finishing material 7 and the vacuum insulation panel 6 to induce the fixing by an adhesive layer 100, or optionally, to finish it as described above and as in FIG. 5(d) , to fix it by a band.
- the composite members constituting the vacuum insulation panel 6 and the mounting member such as the insulation pad 5 and the finishing material 7 can be assembled on the tank body 1, or the vacuum insulation panel 6 and the vacuum insulation panel layer in which the mounting member is configured can be modularized and assembled to be mounted to the tank.
- the structure for connecting the alternately stacked vacuum insulation panels of the independent type liquefied gas storage tank in accordance with the present disclosure can be not only applied to the independent type liquefied gas tank on land, but also to any of the offshore structures that floats on sea where the independent type liquefied gas tank is installed and flow occurs; and to the offshore plant, etc. such as a LNG Floating Production, Storage and Offloading (FPSO) or a LNG Floating Storage and Regasification Unit (FSRU), as well as to the ship such as a liquefied gas carrier or a LNG Regasification Vessel (RV) transporting LNG or LPG, etc.
- FPSO LNG Floating Production, Storage and Offloading
- FSRU LNG Floating Storage and Regasification Unit
- tank body 2 pad 3: first fixing member 4: second fixing member 5: insulation pad 6: vacuum insulation panel 7: finishing material 8: empty space 9: gap 51: stud bolt 52: lower end portion of first fixing member 53: pressing protrusion of first fixing member 54: upper end portion of first fixing member 71: lower end portion of second fixing member 72: pressing plate 81: protection layer 100: adhesive layer
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Thermal Insulation (AREA)
Description
- The present disclosure relates to a structure for connecting vacuum insulation panels of an independent type liquefied gas storage tank installed to store liquefied gas such as LNG or LPG.
- Natural gas is transported in a gas state through gas pipelines on land or sea, or transported to distant consumer sides in the form of Liquefied Natural Gas (LNG) or Liquefied Petroleum Gas (LPG) stored in a carrier. LNG is to liquefy natural gas, in which methane is main component, at minus 162°C under atmospheric pressure, the volume ratio of liquid to gas is about 1/600, and the weight of the liquefied state is 0.43-0.50.
- A LNG carrier for navigating the sea with LNG and unloading the LNG to demand sides on land, or LNG Regasification Vessel (RV) for navigating the sea with LNG to arrive demand sides on land and then regasificating the stored LNG to unload in a natural gas state includes a storage tank (often, referred to as "hold") that can withstand cryogenic liquefied natural gas.
- This storage tank can be classified into independent type and membrane type depending on whether or not the load of the cargo directly acts on the insulation material. Usually, the membrane type storage tank is divided into No 96 type and Mark III type, and the independent type storage tank is divided into MOSS type and SPB type. The structure of the MOSS type independent type storage tank is described in
Korean Patent No. 10-15063 Korean Patent No. 10-30513 - Generally, the independent type storage tank is made by attaching a relatively hard insulation panel such as polyurethane foam to a tank body made of an alloy such as aluminum alloy, SUS and 9% nickel, which is resistant to low temperature, and is located on a plurality of tank support bodies arranged on the inner bottom of a hull.
- A insulation structure of a liquefied gas storage tank in which a plurality of insulation panels manufactured by a polyurethane foam are installed on the exterior of a tank body is described in
Korean Patent No. 10-166608 - According to the related arts, the insulation structure of the liquefied gas storage tank has the limitation in that the size of one insulation panel cannot be increased beyond a certain level upon installation of the insulation panel because the insulation panel has to have a predetermined thickness. In order to solve the problem,
Korean Patent Laid-Open Publication Nos. 10-2011-0051407 10-2011-0046627 - However, when the insulation panel is extended by a mounting member such as a fixing member, the interface of the insulation panel is stacked in a straight line, such that the length that the heat from the atmosphere reaches the tank surface is short and thereby, the insulation performance is reduced. In addition, although the stud bolt, the fixing member, and the charging member such as an insulation material are filled therein, the heat can penetrate from the atmosphere to the tank surface through the gap, such that the insulation is not completely implemented.
-
KR 2013 0125548 A - The present disclosure is intended to solve the above problems, and an object of the present disclosure is to provide a structure for connecting alternately stacked vacuum insulation panels of an independent type liquefied gas capable of alternately stacking the vacuum insulation panel on a tank body, thus lengthening the length that the heat from the atmosphere reaches the tank surface along the interface of the vacuum insulation panel to enhance the insulation performance, and having enhanced insulation performance while thinning the thickness of the insulation panel.
- A structure for connecting alternately stacked vacuum insulation panels of an independent type liquefied gas storage tank of the present disclosure for achieving the object includes a vacuum insulation panel having a core material and an outer cover that encompasses the core material and whose inside is formed in a vacuum; and as the structure for connecting the alternately stacked vacuum insulation panels of the independent type liquefied gas storage tank that continuously, alternately stacks the vacuum insulation panels in order to prevent heat loss at the exterior of a tank body of the liquefied gas storage tank, thus performing insulation, provided is the structure for connecting the alternately stacked vacuum insulation panels of the independent type liquefied gas storage tank, which includes a stud bolt installed at the exterior of the tank body, the vacuum insulation panel attached to the exterior of the tank body by the stud bolt, a pad fitted to the stud bolt in order to form a gap between the vacuum insulation panel layer and the tank body, and a fixing member for fixing the pad; and the vacuum insulation panel can be fixed by connecting another fixing member to the fixing member.
- According to the present disclosure as described above, it is possible to alternately stack the vacuum insulation panels that are continuously attached to the exterior of the tank body, thus lengthening the length that the heat from the atmosphere reaches the tank surface along the interface of the vacuum insulation panel to enhance insulation performance. In addition, it is possible to prevent heat loss from occurring through the mounting member, such as the stud bolt and the fixing member, and the charging member, or through the gap therebetween. In addition, it is possible to have enhanced insulation performance compared to the conventional polyurethane foam insulation panel, thus minimizing the transportation costs of the liquefied gas loading capacity, reducing the thickness of the insulation panel to increase the storage space of the storage tank, and in addition, reducing the weight of the storage tank to reduce the transportation costs.
-
-
FIG. 1 is a diagram illustrating a structure for connecting vacuum insulation panels in accordance with the present disclosure. -
FIG. 2 is a flowchart illustrating a process in which the vacuum insulation panels are connected in accordance with the present disclosure. -
FIG. 3 is a diagram illustrating the effect of the continuously and alternately stacked vacuum insulation panels in accordance with the present disclosure. -
FIG. 4 is a diagram illustrating a configuration of the vacuum insulation panel in which a protection layer is included in accordance with the present disclosure. -
FIG. 5 is a diagram illustrating a method of mounting a finishing material in the structure for connecting the vacuum insulation panels in accordance with the present disclosure. - Hereinafter, a structure for connecting alternately stacked vacuum insulation panels of an independent type liquefied gas tank in accordance with a preferred embodiment of the present disclosure will be described in detail with reference to the accompanying drawings.
-
FIG. 1 is a cross-sectional diagram for explaining a structure for connecting vacuum insulation panels in accordance with a preferred embodiment of the present disclosure, andFIG. 2 sequentially illustrates a process of connecting a mounting member and a vacuum insulation panel to the exterior of a tank body. - As illustrated in
FIGS. 1 and2 , the insulation structure of the independent type liquefied gas tank is formed by stacking avacuum insulation panel 6 on the exterior of a tank body 1 to form a vacuum insulation panel layer. Thevacuum insulation panel 6 is formed as an insulation material having a very low thermal conductivity so that the outer cover having a high shielding property including an aluminum thin film encompasses all surfaces of an organic-based or inorganicbased pore type core material. A plurality of thevacuum insulation panels 6 are continuously arranged adjacently to each other on the exterior of the tank body 1 of a storage tank to form a lower vacuuminsulation panel layer 6b, and one or more layers of the vacuum insulation panel are alternately stacked on the lower vacuuminsulation panel layer 6b to form an upper vacuuminsulation panel layer 6a. - The lower vacuum
insulation panel layer 6b tightly does not adhere to the tank body 1, and a gap 9 is formed by apad 2. The gap 9 between the tank body 1 and the lower vacuuminsulation panel layer 6b can be utilized as a ventilation space and can be also utilized as a passage for leakage liquid upon leakage due to damage of the tank body 1. - According to the structure for connecting the vacuum insulation panels in accordance with the preferred embodiment of the present disclosure, a
stud bolt 51 is installed on the exterior of the tank body 1 at a regular interval. Thestud bolt 51 can be fixedly mounted on the exterior of the tank body 1 by welding. - The
pad 2 having a predetermined thickness is fitted on thestud bolt 51. Thepad 2 has a stepped portion in which the height of the center portion is lower than that of the circumference thereof, and has a through-groove formed at the center thereof. Accordingly, thestud bolt 51 passes through the through-groove formed in the stepped portion of thepad 2, and a first fixingmember 3, which receives the end portion of thestud bolt 51, is screwed thereto. Alower end portion 52 of one side of the first fixingmember 3 is screwed with thestud bolt 51 to fix so that apressing protrusion 53 formed on the side surface of the first fixingmember 3 presses thepad 2 to tightly adheres thepad 2 to the tank body 1. At the central portion of thepad 2, a stepped portion formed by a downwardly stepped empty space 8 is formed. Accordingly, even if the first fixingmember 3 is fitted after penetrating thestud bolt 51 into the stepped portion, it does not become an obstacle that thepressing protrusion 53 pressing thevacuum insulation panel 6 in the first fixingmember 3 is located within the empty space 8 of the stepped portion to tightly adhere and mount thevacuum insulation panel 6 to the upper vacuuminsulation panel layer 6a. - An extension screw thread is formed on an
upper end portion 54 opposite to thelower end portion 52 where thestud bolt 51 is coupled in the first fixingmember 3 in order to receive alower end portion 71 of a second fixing member 4. - Edges of the
vacuum insulation panel 6 forming the lower vacuuminsulation panel layer 6b are seated and fixed on thepad 2. That is, each edge of thevacuum insulation panel 6 forming the lower vacuuminsulation panel layer 6b is seated and fixed on adifferent pad 2, respectively. That is, thepad 2 receives the apex portion where the edge of thevacuum insulation panel 6 meets, and the apex portion where another edge of thevacuum insulation panel 6 meets is received by anotherpad 2. Thevacuum insulation panels 6 are continuously mounted on thepad 2 installed at a regular interval to encompass the tank body 1, and the size of the gap 9 between the tank body 1 and thevacuum insulation panel 6 can be kept constant by thepad 2. - The
vacuum insulation panel 6 of the lower vacuuminsulation panel layer 6b having each edge caught and mounted on thepad 2 is fixed by screwing the second fixing member 4 to the first fixingmember 3 fixing thepad 2. The second fixing member 4 is composed of a plate -shapedpressing plate 72 and thelower end portion 71 installed on the lower portion of thepressing plate 72, such that thepressing plate 72 presses and fixes the edges of eachvacuum insulation panel 6 when thelower end portion 71 of the second fixing member 4 is coupled to the first fixingmember 3. Accordingly, in thevacuum insulation panel 6, the mounting members including thestud bolt 51 and the first,second fixing members 3, 4 are received at the apex portion where the edge of thevacuum insulation panel 6 meets. - Meanwhile, an
insulation pad 5 formed of a foam having the elasticity or an inorganic fiber base is filled in the empty space 8 of the stepped portion at the center of thepad 2 and between the adjacentvacuum insulation panels 6 in thevacuum insulation panel 6. Theinsulation pad 5 between thevacuum insulation panels 6 can be attached and mounted to the side surface of thevacuum insulation panel 6 in advance, or can be fitted and mounted after thevacuum insulation panel 6 is mounted. The width of the pad can change depending upon shrinkage or expansion of the tank body 1 as the liquefied gas is supplied or discharged. - The
vacuum insulation panel 6 is configured to be alternately stacked when the upper vacuuminsulation panel layer 6a is stacked in plural on the lower vacuuminsulation panel layer 6b. As illustrated inFIG. 3(a) , when the stacked directional interface between adjacentvacuum insulation panels 6 is stacked in a straight line, the length that the heat from the atmosphere reaches the tank surface is relatively short, thus reducing the insulation performance. On the contrary, as in the preferred embodiment of the present disclosure illustrated inFIG. 3(b) , when thevacuum insulation panels 6 are continuously stacked alternately, the stacked directional interface becomes zigzag and thereby, the length that the heat from the atmosphere reaches the tank surface is long, thus enhancing the insulation performance. This is based on the Fourier's law as follows -
- According to the Fourier's law, the amount of the heat transfer is proportional to the cross-sectional area and inversely proportional to the distance with respect to the temperature gradient. That is, it can be seen that when the stacked directional interface of the
vacuum insulation panels 6 is alternately stacked in a zigzag manner rather than stacked in a straight line, the length that the heat from the atmosphere reaches the tank surface is longer, thus minimizing the amount of heat and enhancing the insulation performance. - When one or more
vacuum insulation panels 6 are continuously stacked, as illustrated inFIG. 4 , at least one thereof can include aprotection layer 81 on the vacuum insulation panel. Theprotection layer 81 protects the inner vacuum damage of the vacuum insulation panel from external temperature environment or pressure, and mechanical impact. -
FIG. 4 illustrates a case where the vacuum insulation panel including theprotection layer 81 is stacked on the uppermost portion layer. Theprotection layer 81 can be stacked on the exterior of the vacuum insulation panel, and can be coated on the outer surface of the vacuum insulation panel. Theprotection layer 81 can be formed of an organic material sheet such as polypropylene, polyethylene, polystyrene, polyvinyl alcohol, polycarbonate, polymethyl methacrylate, and polyethylene terephthalate, or an inorganic material sheet such as foamed foam, nonwoven fabric, and glass fiber. - A finishing
material 7 is mounted on the uppermost portion layer of the stackedvacuum insulation panels 6. The finishing material can use a metal material sheet such as galvalume, aluminum, zinc, and stainless steel, or a composite material sheet of phenol resin, epoxy resin, polyester resin, and thermosetting resin reinforced with fiber such as carbon fiber, glass fiber, and rock wool, or a rubber sheet, or a wood plate material, etc. - A method of mounting the finishing material is illustrated in
Fig. 5 . When the finishingmaterial 7 is mounted by tightly adhering to and being vertically bolted to thevacuum insulation panel 6 as illustrated inFIG. 5(a) , the vacuum formed inside thevacuum insulation panel 6 can be damaged. Accordingly, it is preferable to bend the finishingmaterial 7 at 90 degrees to be horizontally bolted and fitted as illustrated inFIG. 5(b) , or as illustrated inFIG. 5(c) , to apply an adhesive between the finishingmaterial 7 and thevacuum insulation panel 6 to induce the fixing by anadhesive layer 100, or optionally, to finish it as described above and as inFIG. 5(d) , to fix it by a band. - In the structure for connecting the alternately stacked vacuum insulation panels of the independent type liquefied gas storage tank in accordance with the present disclosure, the composite members constituting the
vacuum insulation panel 6 and the mounting member such as theinsulation pad 5 and the finishingmaterial 7 can be assembled on the tank body 1, or thevacuum insulation panel 6 and the vacuum insulation panel layer in which the mounting member is configured can be modularized and assembled to be mounted to the tank. - The structure for connecting the alternately stacked vacuum insulation panels of the independent type liquefied gas storage tank in accordance with the present disclosure can be not only applied to the independent type liquefied gas tank on land, but also to any of the offshore structures that floats on sea where the independent type liquefied gas tank is installed and flow occurs; and to the offshore plant, etc. such as a LNG Floating Production, Storage and Offloading (FPSO) or a LNG Floating Storage and Regasification Unit (FSRU), as well as to the ship such as a liquefied gas carrier or a LNG Regasification Vessel (RV) transporting LNG or LPG, etc.
- As described above, although the structure for connecting the alternately stacked vacuum insulation panels of the independent type liquefied gas storage tank in accordance with the present disclosure has been described with reference to the drawings, it will be apparent by those skilled in the art to which the present disclosure pertains that the present disclosure is not limited to the embodiments and drawings described above, various changes and modifications can be made within the scope of the appended claims.
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1: tank body 2: pad 3: first fixing member 4: second fixing member 5: insulation pad 6: vacuum insulation panel 7: finishing material 8: empty space 9: gap 51: stud bolt 52: lower end portion of first fixing member 53: pressing protrusion of first fixing member 54: upper end portion of first fixing member 71: lower end portion of second fixing member 72: pressing plate 81: protection layer 100: adhesive layer
Claims (7)
- A structure for connecting alternately stacked vacuum insulation panels of an independent type liquefied gas storage tank, comprising:
in the structure for connecting the vacuum insulation panels of the independent type liquefied gas storage tank, which installs a stud bolt (51) on the surface of a tank body (1) at a predetermined interval and stacks an insulation panel to encompass the exterior of the tank body (1) through the stud bolt (51), thus insulating the tank body (1) from the atmosphere, wherein the insulation panel is provided as the vacuum insulation panel (6) for encompassing a core material and having an outer cover whose inside is formed in a vacuum,a pad (2) fitted to the stud bolt in order to form a gap between a lower vacuum insulation panel layer, which is installed to continuously arrange the vacuum insulation panel to encompass the tank body, and the tank body;a first fixing member (3) for fixing the pad (2) by a pressing protrusion (53) at the center thereof with a lower end portion of one side thereof fastened to the stud bolt (51), and having a screw thread formed on an upper end portion of the other side thereof;a lower vacuum insulation panel layer (6a) installed so that edges of adjacent vacuum insulation panels (6) are seated on the pad (2);a second fixing member (4) having a pressing plate (72) so that the edges of the lower vacuum insulation panels (6) seated on the pad are connected to the first fixing member (3) to be pressed and fixed; andan upper vacuum insulation panel layer (6b) formed on an upside of the lower vacuum insulation panel layer (6a) so that the vacuum insulation panels are continuously and alternately stacked with one or more layers with respect to the lower vacuum insulation panel (6), and interface of the stacked vacuum insulation panels (6) becomes zigzag. - The structure for connecting the alternately stacked vacuum insulation panels of the independent type liquefied gas storage tank according to claim 1, comprises a protection layer (81) stacked on at least one of the vacuum insulation panels (6).
- The structure for connecting the alternately stacked vacuum insulation panels of the independent type liquefied gas storage tank according to claim 2, wherein the protection layer (81) comprises an organic material sheet selected from polypropylene, polyethylene, polystyrene, polyvinyl alcohol, polycarbonate, polymethyl methacrylate, and polyethylene terephthalate, or an inorganic material sheet selected from foamed foam, nonwoven fabric, and glass fiber.
- The structure for connecting the alternately stacked vacuum insulation panels of the independent type liquefied gas storage tank according to claim 1, wherein the vacuum insulation panel (6) further comprises an insulation pad (5) of a foam pad having the elasticity or an inorganic material fiber based pad in an empty space (8) of a stepped portion formed on a side surface thereof and a central portion of the pad (2).
- The structure for connecting the alternately stacked vacuum insulation panels of the independent type liquefied gas storage tank according to claim 1, wherein a finishing material (7) of an uppermost portion layer comprises one or more among a metal material sheet selected from galvalume, aluminum, zinc, and stainless steel plate, or a composite material sheet of thermosetting resin selected from phenol resin, epoxy resin, and polyester resin, or a rubber sheet, or a wood plate material.
- The structure for connecting the alternately stacked vacuum insulation panels of the independent type liquefied gas storage tank according to claim 5, wherein the finishing material (7) is fitted by bending the finishing material (7) by 90 degrees to bolt it horizontally, or is finished by an adhesive, or is fitted by bending the finishing material (7) by 90 degrees to bolt it horizontally and then fixing it by a band.
- The structure for connecting the alternately stacked vacuum insulation panels of the independent type liquefied gas storage tank according to claim 1, wherein the vacuum insulation panel layer is formed by mounting the modularized vacuum insulation panel, wherein the insulation pad of a foam pad or a fiber based pad and a finishing material (7) are integrally attached to the vacuum insulation panel (6), to the tank.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020150178800A KR101772581B1 (en) | 2015-12-15 | 2015-12-15 | Cross stacked insulation panel installation structure of independent type liquefied gas storage tank |
PCT/KR2016/013425 WO2017104988A1 (en) | 2015-12-15 | 2016-11-21 | Structure for connecting alternately stacked vacuum insulation panels of independent type liquefied gas storage tank |
Publications (3)
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EP3392131A1 EP3392131A1 (en) | 2018-10-24 |
EP3392131A4 EP3392131A4 (en) | 2019-09-25 |
EP3392131B1 true EP3392131B1 (en) | 2022-06-01 |
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EP16875930.6A Active EP3392131B1 (en) | 2015-12-15 | 2016-11-21 | Structure for connecting alternately stacked vacuum insulation panels of independent type liquefied gas storage tank |
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EP (1) | EP3392131B1 (en) |
JP (1) | JP6781526B2 (en) |
KR (1) | KR101772581B1 (en) |
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WO (1) | WO2017104988A1 (en) |
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KR102459784B1 (en) | 2017-08-01 | 2022-10-28 | 엘지전자 주식회사 | Vacuum adiabatic body and refrigerator |
KR102449175B1 (en) | 2017-08-01 | 2022-09-29 | 엘지전자 주식회사 | Vacuum adiabatic body and refrigerator |
KR102427466B1 (en) | 2017-08-01 | 2022-08-01 | 엘지전자 주식회사 | Vehicle, refrigerater for vehicle, and controlling method for refrigerator for vehicle |
KR102529116B1 (en) | 2017-08-01 | 2023-05-08 | 엘지전자 주식회사 | Vacuum adiabatic body, fabrication method for the vacuum adibatic body, and refrigerating or warming apparatus insulated by the vacuum adiabatic body |
KR102449177B1 (en) | 2017-08-01 | 2022-09-29 | 엘지전자 주식회사 | Vacuum adiabatic body and refrigerator |
KR102459786B1 (en) | 2017-08-16 | 2022-10-28 | 엘지전자 주식회사 | Vacuum adiabatic body and refrigerator |
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KR102019273B1 (en) * | 2017-12-28 | 2019-09-06 | 대우조선해양 주식회사 | Insulation system for natural gas cargo of carrier and liquefied natural gas fuel tank |
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KR102185817B1 (en) * | 2018-08-28 | 2020-12-02 | 대우조선해양 주식회사 | Insulation system for natural gas cargo of carrier and liquefied natural gas fuel tank |
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CN114889751A (en) * | 2022-04-27 | 2022-08-12 | 江南造船(集团)有限责任公司 | Heat insulation layer for low-temperature liquid cargo tank and low-temperature liquid cargo tank |
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KR101031265B1 (en) * | 2008-03-11 | 2011-04-29 | 삼성중공업 주식회사 | Containment tank for liquefied natural gas |
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-
2015
- 2015-12-15 KR KR1020150178800A patent/KR101772581B1/en active IP Right Grant
-
2016
- 2016-11-21 JP JP2018530851A patent/JP6781526B2/en active Active
- 2016-11-21 WO PCT/KR2016/013425 patent/WO2017104988A1/en active Application Filing
- 2016-11-21 CN CN201680073331.5A patent/CN108541247B/en active Active
- 2016-11-21 EP EP16875930.6A patent/EP3392131B1/en active Active
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EP3392131A4 (en) | 2019-09-25 |
JP2019506338A (en) | 2019-03-07 |
WO2017104988A1 (en) | 2017-06-22 |
EP3392131A1 (en) | 2018-10-24 |
CN108541247B (en) | 2020-08-11 |
CN108541247A (en) | 2018-09-14 |
KR20170071623A (en) | 2017-06-26 |
KR101772581B1 (en) | 2017-08-31 |
JP6781526B2 (en) | 2020-11-04 |
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