WO2017034117A1 - 앵커 스트립이 제거된 액화가스 화물창의 인슐레이션 구조, 그 인슐레이션 구조를 구비하는 화물창, 및 그 화물창을 구비하는 액화가스 운반선 - Google Patents
앵커 스트립이 제거된 액화가스 화물창의 인슐레이션 구조, 그 인슐레이션 구조를 구비하는 화물창, 및 그 화물창을 구비하는 액화가스 운반선 Download PDFInfo
- Publication number
- WO2017034117A1 WO2017034117A1 PCT/KR2016/003813 KR2016003813W WO2017034117A1 WO 2017034117 A1 WO2017034117 A1 WO 2017034117A1 KR 2016003813 W KR2016003813 W KR 2016003813W WO 2017034117 A1 WO2017034117 A1 WO 2017034117A1
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- WO
- WIPO (PCT)
- Prior art keywords
- insulation panel
- membrane
- cargo hold
- insulation
- liquefied gas
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
- B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
- B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/02—Wall construction
- B65D90/06—Coverings, e.g. for insulating purposes
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- 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
-
- 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
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
- F17C2203/0304—Thermal insulations by solid means
- F17C2203/0329—Foam
- F17C2203/0333—Polyurethane
-
- 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
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0636—Metals
- F17C2203/0646—Aluminium
-
- 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
- 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
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- 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
- F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
- F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
- F17C2225/033—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
- 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
-
- 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 invention relates to an insulation structure of a liquefied gas cargo hold in which an anchor strip is removed, a cargo hold having the insulation structure, and a liquefied gas carrier having the cargo hold, and more particularly to remove an existing anchor strip. And replace it with a heat protection member at the position, which can effectively prevent damage to the upper insulation panel from fire generated during welding of the membrane by the heat protection member, and improve the fixing force of the membrane.
- Insulation structure of liquefied gas cargo hold from which anchor strip is removed which can reduce the weight of cargo hold by forming the heat protection member on the aluminum foil and cover the glass cross.
- natural gas is transported in gaseous state through onshore or offshore gas pipelines, or liquefied liquefied natural gas (LNG) in LNG carriers to remote consumers.
- LNG liquefied liquefied natural gas
- LNG is obtained by cooling natural gas to cryogenic temperature at about -163 ° C, and its volume is reduced to approximately 1/600 than that of natural gas in gas state, so it is very suitable for long distance transportation by sea.
- LNG carriers for loading and unloading LNG to land demand by loading the LNG
- LNG RV regasification vessel
- LNG after unloading LNG after arriving at the land demand by loading the LNG
- a storage tank commonly referred to as a cargo hold
- a storage tank is provided.
- LNG FPSOs are floating offshore structures that are used to liquefy the produced natural gas directly from the sea and store it in storage tanks and, if necessary, to transport LNG stored in the storage tanks to LNG carriers.
- the LNG FSRU is a floating offshore structure that stores LNG unloaded from LNG carriers in a storage tank at sea far from the land, and then vaporizes LNG as needed to supply land demand.
- a storage tank for storing LNG in a cryogenic state is installed in an offshore structure such as an LNG carrier, an LNG RV, an LNG FPSO, or an LNG FSRU that transports or stores a liquid cargo such as LNG.
- Storage tanks can be classified into independent tank types and membrane types, depending on whether the load of the cargo directly acts on the insulation.
- membrane type storage tank is divided into GTT NO 96 type and TGZ Mark III type, and independent tank type storage tank is divided into MOSS type and IHI-SPB type.
- Membrane type storage tanks have different insulation materials and structures depending on the type of special metal plate.
- the GTT NO96 type uses a thin plate made of Invar (a very small thermal expansion alloy composed mainly of iron and nickel). Use stainless steel sheets.
- the storage tank of the GTT NO 96 type includes a first sealing wall and a second sealing wall made of Invar steel having a thickness of 0.5 to 1.5 mm, a first heat insulating wall made of a plywood box, perlite, and the like. Second insulating walls are alternately stacked in the hull.
- the primary and secondary sealing walls have about the same degree of liquid tightness and strength, so that in case of leakage of the first sealing wall, the second sealing wall alone can safely support the cargo.
- the GTT NO 96 type insulation system consists of two layers of invar steel (36% nickel steel) and an insulated box made of pearlite and plywood. Plywood is used as a material for the insulated box.
- FIG. 1 is a cross-sectional view showing a cargo hold insulation structure of a liquefied natural gas carrier according to the prior art.
- the cargo hold insulation structure of a conventional LNG carrier includes a lower insulation panel 10, an upper insulation panel 20, a flat joint 30, and a tower.
- a plurality of unit insulation assembles 1 including a bridge panel 40 and a membrane sheet 50 are arranged in series.
- the bottom insulation panel 10 is installed on the inner hull 2 of the tank by epoxy mastic and stud bolts 11.
- a flat joint 30 is installed in the space between the lower insulation panels 10 facing each other to seal the space and perform a secondary insulation function.
- the lower insulating panel 10 may be formed of a reinforced-polyurethane foam, and a rigid triplex (RSB) 12 is installed on an upper surface thereof. That is, plywood is provided between the tank inner wall 2 and the rigid triplex 12 is provided on the upper surface opposite to the tank inner wall 2.
- RTB rigid triplex
- the upper insulation panel 20 comprises a sawing line 21, a fixed base support 22, an anchor strip 23 and a thermal protection 24. It is attached to the top of the heat insulation panel 10.
- the top bridge panel 40 is installed in a space between the upper insulation panels 20 facing each other to seal the space and perform a primary insulation function.
- the upper insulation panel 20 may be formed of reinforced-polyurethane foam, and a plywood may be provided on the upper side.
- the sawing line 21 is formed in plural in the form of a lattice orthogonal in the horizontal and vertical direction to the upper insulation panel 20 in order to prevent the hull from being deformed by shrinkage expansion due to cryogenic temperatures.
- the heat protection plate 24 is provided at at least one end of the anchor strip 23 to compensate for the weakening of the breakage prevention function of the upper and lower insulation panels 10 and 20 due to the deformation of the hull and the thermal deformation of the membrane 50. do.
- a gap 41 is formed between the upper insulating panel 20 and the top bridge panel 40.
- the fixed base support 22 is formed in plural on the upper insulation panel 20.
- the anchor strip 23 is made of stainless steel and is fixed to the upper insulation panel 20 by rivets R.
- the thermal protection plate 24 not only serves to prevent the membrane 50 from being welded to the upper insulation panel 20, but also the upper insulation panel 20 due to fire and heat transfer during welding of the membrane 50. ) To prevent damage.
- the flat joint 30 is installed in the space between the lower insulation panels 10 facing each other when the unit insulation panel assembly 1 is installed in an array, thereby performing a secondary insulation function.
- the flat joint 30 may be formed using a glass wool material.
- the top bridge panel 40 is attached to the upper part of the lower insulating panel 10 to which the upper insulating panel 20 is not attached and the upper part of the flat joint 30, so that the upper insulating face facing each other when installing the unit insulating panel assembly 1.
- the space between the panels 20 is sealed, and the primary insulation function can be performed.
- the top bridge panel 40 may be formed of reinforced-polyurethane foam, and may be attached to the top of the flexible triplex 13 installed above the lower insulation panel 10 and above the flat joint 30. have.
- the top bridge panel 40 allows the gap 41 to be formed between the upper insulation panels 20 facing each other when the unit insulation panel assembly 1 is installed in an arrangement.
- the deformation and the membrane of the hull which are functions of the sawing line 21, A function of preventing breakage of the lower and upper insulation panels 10 and 20 according to the thermal deformation of 50 may be performed.
- the membrane 50 is fixedly coupled to the top of the top insulation panel 20 and the top bridge panel 40 by anchor strips 23.
- Membrane 50 may be a corrugation membrane sheet (corrugation membrane sheet) may have an embossed form provided with irregularities on the upper and lower surfaces.
- the cargo hold insulation structure of the conventional LNG carriers configured as described above has a thermal insulation performance, structural performance, and airtightness in the design of the cargo hold of the liquefied natural gas carrier because the liquefied natural gas is transported from the sea at the cryogenic temperature when the liquefied natural gas is transported.
- Many advanced technologies are required, among which the cargo hold of the membrane-type liquefied natural gas carriers is hermetically sealed by welding a membrane on top of the upper insulation panel for the tightness of the liquefied natural gas.
- the membrane 50 In the conventional cargo hold insulation structure of LNG carriers, when welding the membrane 50, the membrane 50 is fixed to the anchor strip 23 of the upper insulation panel 12 by spot welding, and then adjacent membranes. Line welding is carried out in the state in which the field 50 was overlapped, and airtightness is maintained.
- the conventional anchor strip serves to fix the membrane by spot welding and serves to prevent damage to the upper insulation panel by fire and heat transfer generated during welding.
- the conventional anchor strip is made of SUS material, and when installed in the upper insulation panel, it is necessary to drill holes for fixing the rivet of the anchor strip and the upper insulation panel, and the rivet (R) cost is added to fix the rivet fixing.
- the rivet (R) cost is added to fix the rivet fixing.
- the present invention is to solve the above problems, replace the existing anchor strip (anchor strip) with a heat protection member, the damage of the upper insulation panel from fire and heat transfer generated during welding of the membrane by the heat protection member.
- the purpose is to provide a liquefied gas carrier.
- the present invention provides an insulation structure of the liquefied gas cargo hold, the anchor strip is removed, a cargo hold having the insulation structure, and a liquefied gas carrier having the cargo hold.
- the insulation structure of the liquefied gas cargo hold in which the anchor strip is removed according to the present invention is a lower insulation panel, an upper insulation panel laminated to the lower insulation panel, and welded to the upper insulation panel.
- Unit insulation panel assembly including a membrane (membrane sheet) is composed of a plurality of consecutive arrangements, which prevents damage to the upper insulation panel from fire and heat transfer generated during welding of the membrane and the membrane
- a thermal protection member is installed in the groove of the upper insulation panel for fixing of the thermal insulation member.
- the lower insulation panel is installed on an inner hull by an epoxy mastic and a stud bolt, and the lower insulation panel faces when the unit insulation panel assembly is continuously disposed.
- the flat joint is installed in the space between and seals the space, and performs the secondary insulation function.
- a rigid triplex (RSB) is installed on an upper surface of the lower insulation panel.
- the upper insulating panel is installed on top of the lower insulating panel, including a sawing line, a fixed base support, and a thermal protection member.
- the top bridge panel When the unit insulation panel assembly is continuously disposed, the top bridge panel is installed in a space between the upper insulation panels facing each other to seal the space and perform a primary insulation function.
- the thermal protection member is installed in a groove of the upper insulation panel, and fixed to the upper insulation panel through the thermal protection member.
- a securing base support is installed.
- the thermal protection member may be seated in a groove of the upper insulation panel, and may be fixed with staples and fixing pins.
- the heat protection member may use a material covering a glass cross on an aluminum foil.
- the flat joint 130 may be formed using a glass wool material.
- the top bridge panel is formed of reinforced-polyurethane foam and may be attached to an upper portion of the flexible triplex installed above the lower insulation panel and above the flat joint.
- the top bridge panel has a gap formed between the upper insulating panels facing each other when the arrangement of the unit insulating panel assembly is arranged, so that the lower and upper insulation according to the deformation of the hull, which is a function of the sawing line, and the thermal deformation of the membrane. Prevent panel damage.
- the membrane is a corrugation membrane sheet (corrugation membrane sheet), it may be in the form of embossing is provided with irregularities on the upper and lower surfaces.
- the present invention replaces the existing anchor strip (anchor strip) with a heat protection member, but effectively prevents damage to the upper insulation panel from fire and heat transfer generated during welding of the membrane by the heat protection member.
- the fixing force of the membrane can be improved, as well as the heat protection member is formed of a material covering a glass cross on an aluminum foil to reduce the weight of the cargo hold, and the anchor strip made of existing SUS material. This eliminates the need for riveting, improving workability and reducing manufacturing costs.
- 1 is a perspective view showing the cargo hold insulation structure of the LNG carrier according to the prior art
- Figure 2 is a cross-sectional view showing the cargo hold insulation structure of the LNG carrier according to the prior art
- FIG. 3 is a perspective view showing an insulation structure of the liquefied gas cargo hold is removed, the cargo hold provided with the insulation structure in accordance with the present invention
- FIG. 4 is a cross-sectional view showing an insulation structure of the liquefied gas cargo hold is removed, the cargo hold provided with the insulation structure according to the present invention.
- 5 is a perspective view showing that spot welding for fixing the membrane is performed to the fixed base support
- FIG. 6 is a perspective view showing that line welding for the connection between the membranes is performed on the heat protection member
- the present invention provides an insulation structure of the liquefied gas cargo hold, the anchor strip is removed, a cargo hold having the insulation structure, and a liquefied gas carrier having the cargo hold.
- the insulation structure of the liquefied gas cargo hold in which the anchor strip is removed according to the present invention is a lower insulation panel, an upper insulation panel laminated to the lower insulation panel, and welded to the upper insulation panel.
- Unit insulation panel assembly including a membrane (membrane sheet) is composed of a plurality of consecutive arrangements, which prevents damage to the upper insulation panel from fire and heat transfer generated during welding of the membrane and the membrane
- a thermal protection member is installed in the groove of the upper insulation panel for fixing of the thermal insulation member.
- the lower insulation panel is installed on an inner hull by an epoxy mastic and a stud bolt, and the lower insulation panel faces when the unit insulation panel assembly is continuously disposed.
- the flat joint is installed in the space between and seals the space, and performs the secondary insulation function.
- a rigid triplex (RSB) is installed on an upper surface of the lower insulation panel.
- the upper insulating panel is installed on top of the lower insulating panel, including a sawing line, a fixed base support, and a thermal protection member.
- the top bridge panel When the unit insulation panel assembly is continuously disposed, the top bridge panel is installed in a space between the upper insulation panels facing each other to seal the space and perform a primary insulation function.
- the thermal protection member is installed in a groove of the upper insulation panel, and fixed to the upper insulation panel through the thermal protection member.
- a securing base support is installed.
- the thermal protection member may be seated in a groove of the upper insulation panel, and may be fixed with staples and fixing pins.
- the heat protection member may use a material covering a glass cross on an aluminum foil.
- the flat joint 130 may be formed using a glass wool material.
- the top bridge panel is formed of reinforced-polyurethane foam and may be attached to an upper portion of the flexible triplex installed above the lower insulation panel and above the flat joint.
- the top bridge panel has a gap formed between the upper insulating panels facing each other when the arrangement of the unit insulating panel assembly is arranged, so that the lower and upper insulation according to the deformation of the hull, which is a function of the sawing line, and the thermal deformation of the membrane. Prevent panel damage.
- the membrane is a corrugation membrane sheet (corrugation membrane sheet), it may be in the form of embossing is provided with irregularities on the upper and lower surfaces.
- Figure 3 is a perspective view showing an insulation structure of the liquefied gas cargo hold is removed anchoring strip according to the present invention, a cargo hold having the insulation structure
- Figure 4 is an insulation structure of a liquefied gas cargo hold is removed anchoring according to the present invention
- Fig. 5 is a sectional view showing a cargo hold having the insulation structure
- Fig. 5 is a perspective view showing that spot welding for fixing a membrane is performed on a fixed base support
- Fig. 6 is a line welding for connection between membranes is performed on a heat protection member. It is a perspective view showing that.
- the liquefied gas cargo hold in which the anchor strip is removed includes a lower insulation panel 110, an upper insulation panel 120, and a flat joint.
- a plurality of unit insulation panel assembles 101 including a flat joint 130, a top bridge panel 140, and a membrane sheet 150 may be arranged in a plurality of consecutive series.
- the thermal protection member 170 is replaced at the position of the anchor strip 23.
- the lower insulation panel 110 is installed on the inner hull 102 by an epoxy mastic 103 and a stud bolt 111, and the unit insulation panel assembly 101 is provided.
- Flat joint 130 is installed in the space between the lower insulating panels 110 facing each other when arranged continuously is configured to seal the space, and to perform a secondary thermal insulation function.
- a rigid triplex (RSB) 112 is installed on an upper surface of the lower insulation panel 110.
- the upper insulation panel 120 is installed on top of the lower insulation panel 110, including a sawing line 121, a fixed base support 122, and a thermal protection member 170.
- the top bridge panel 140 is installed in a space between the upper insulation panels 120 facing each other to seal the space and perform a primary insulation function.
- a heat protection member 170 is installed in the groove 123 of the upper insulation panel 120, and the upper insulation
- the panel 120 is provided with a fixed base support 122 through the heat protection member 170.
- spot welding for fixing the membrane 150 is performed to the fixed base support 122.
- line welding for the connection between the membranes 150 is configured to be performed on the thermal protection member 170.
- the thermal protection member 170 may be seated in the groove 123 of the upper insulation panel 120, and may be fixed with staples and fixing pins.
- the thermal protection member 170 may use a material covering a glass cross on an aluminum foil.
- the flat joint 130 may be formed using a glass wool material.
- the top bridge panel 140 may be formed of reinforced-polyurethane foam and may be attached to an upper portion of the flexible triplex 130 installed on the lower insulation panel 110 and the flat joint 130.
- the top bridge panel 140 allows the gap 141 to be formed between the upper insulation panels 120 facing each other when the unit insulation panel assembly 101 is installed, and thus the deformation of the hull and the membrane as a function of the sawing line 121. To prevent breakage of the lower and upper insulation panels 110 and 120 due to thermal deformation of the 150.
- the membrane 50 may be a corrugation membrane sheet, and may have an embossed form having irregularities on its upper and lower surfaces.
- the present invention replaces the existing anchor strip (anchor strip) with a heat protection member, but effectively prevents damage to the upper insulation panel 110 from fire and heat transfer generated during welding of the membrane by the heat protection member, the membrane
- the heat protection member 170 may be formed of a material covering a glass cross on an aluminum foil to reduce the weight of the cargo hold, and the existing SUS material. By eliminating the anchor strip, no work is needed to improve the workability.
- the present invention replaces the existing anchor strip (anchor strip) with a heat protection member, but effectively prevents damage to the upper insulation panel from fire and heat transfer generated during welding of the membrane by the heat protection member.
- the fixing force of the membrane can be improved, as well as the heat protection member is formed of a material covering a glass cross on an aluminum foil to reduce the weight of the cargo hold, and the anchor strip made of existing SUS material. This eliminates the need for riveting, improving workability and reducing manufacturing costs.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
Claims (14)
- 하부 단열 패널(110), 상기 하부 단열 패널에 적층되는 상부 단열 패널(120), 및 상기 상부 단열 패널(120)에 용접 고정되는 멤브레인(150)을 포함하는 단위 단열 패널 어셈블리(101)가 복수 개로 연속 배치되어 이루어지되,상기 멤브레인(150)의 용접 시 발생하는 화기(火氣) 및 열전달로부터 상기 상부 단열패널(120)의 손상 방지 및 상기 멤브레인(150)의 고정을 위하여, 상기 상부 단열 패널(120)의 홈(123) 안에 열 보호 부재(170)가 설치되는 것을 특징으로 하는, 앵커 스트립이 제거된 액화가스 화물창의 인슐레이션 구조.
- 청구항 1에 있어서,상기 열 보호 부재(170)는 상기 상부 단열 패널(120)의 홈(123) 안에 안착되는 것을 특징으로 하는, 앵커 스트립이 제거된 액화가스 화물창의 인슐레이션 구조.
- 청구항 1에 있어서,상기 상부 단열패널(120)에는 상기 열 보호 부재(170)를 관통하여 고정 베이스 서포트(122)가 설치되며,상기 멤브레인(150)을 고정하기 위한 점 용접은 상기 고정 베이스 서포트(122)에 수행되고, 상기 멤브레인(150) 간의 연결을 위한 선 용접은 상기 열 보호 부재(170) 위에서 수행되는 것을 특징으로 하는, 앵커 스트립이 제거된 액화가스 화물창의 인슐레이션 구조.
- 청구항 1에 있어서,상기 열 보호 부재(170)는 알루미늄 포일(aluminum foil) 위에 글라스 크로스(glass cross)를 덮은 재질을 사용하는 것을 특징으로 하는, 앵커 스트립이 제거된 액화가스 화물창의 인슐레이션 구조.
- 청구항 1에 있어서,상기 플랫 조인트(130)는 글라스 울(glass wool) 재질을 사용하여 형성하는 것을 특징으로 하는, 앵커 스트립이 제거된 액화가스 화물창의 인슐레이션 구조.
- 청구항 1에 있어서,상기 탑 브릿지 패널(140)은 강화-폴리우레탄 폼으로 형성하며, 상기 하부 단열 패널(110) 상부와 상기 플랫 조인트(30) 상부에 설치된 플렉시블 트리플렉스(flexible triplex)(130)의 상부에 부착되는 것을 특징으로 하는, 앵커 스트립이 제거된 액화가스 화물창의 인슐레이션 구조.
- 청구항 1에 있어서,상기 탑 브릿지 패널(140)은 상기 단위 단열 패널 조립체(101)의 배열 설치시 마주하는 상기 상부 단열 패널(120) 사이에 갭(141)이 형성되도록 하여, 상기 쏘잉 라인(121)의 기능인 선체의 변형 및 상기 멤브레인(150)의 열 변형에 따른 상기 하부 및 상부 단열 패널(110,120)의 파손을 방지하는 것을 특징으로 하는, 앵커 스트립이 제거된 액화가스 화물창의 인슐레이션 구조.
- 청구항 1에 있어서,상기 멤브레인(50)은 코러게이션 멤브레인 시트(corrugation membrane sheet)로서 상면과 하면에 요철이 구비되는 엠보싱 형태인 것을 특징으로 하는, 앵커 스트립이 제거된 액화가스 화물창의 인슐레이션 구조.
- 하부 단열 패널(110), 상부 단열 패널(120), 플랫 조인트(130), 탑 브릿지 패널(140), 및 멤브레인(150)을 포함하는 단위 단열 패널 어셈블리(101)가 복수 개로 연속 배치되어 이루어지되,상기 하부 단열 패널(110)은 에폭시 매스틱(103) 및 스터드 볼트(stud bolt)(111)에 의해 화물창 내벽(inner hull)(102)에 설치되며, 상기 단위 단열 패널 어셈블리(101)를 연속적으로 배치할 때 마주하는 상기 하부 단열 패널(110) 사이의 공간에 상기 플랫 조인트(130)가 설치되어 공간을 밀폐하고, 2차 단열 기능을 수행하며,상기 하부 단열 패널(110) 상면에 리지드 트리플렉스(112)가 설치되고,상기 상부 단열 패널(120)은 쏘잉 라인(sawing line: 121), 고정 베이스 서포트(metallic insert: 122), 및 열 보호 부재(170)를 포함하여, 상기 하부 단열 패널(110)의 상부에 설치되며,상기 단위 단열 패널 어셈블리(101)를 연속적으로 배치할 때 마주하는 상기 상부 단열 패널(120) 사이의 공간에 상기 탑 브릿지 패널(140)이 설치되어 공간을 밀폐하고, 1차 단열 기능을 수행하며,상기 멤브레인(150)의 용접 시 발생하는 화기 및 열전달로부터 상기 상부 단열패널(120)의 손상을 방지하기 위하여, 상기 상부 단열 패널(120)의 홈(123) 안에 상기 열 보호 부재(170)가 설치되고,상기 상부 단열패널(120)에는 상기 열 보호 부재(170)를 관통하여 고정 베이스 서포트(122)가 설치되며,상기 멤브레인(150)을 고정하기 위한 점 용접은 상기 고정 베이스 서포트(122)에 수행되고, 상기 멤브레인(150) 간의 연결을 위한 선 용접은 상기 열 보호 부재(170) 위에서 수행되는 것을 특징으로 하는, 앵커 스트립이 제거된 액화가스 화물창의 인슐레이션 구조.
- 하부 단열 패널(110), 상기 하부 단열 패널에 적층되는 상부 단열 패널(120), 및 상기 상부 단열 패널(120)에 용접 고정되는 멤브레인(150)을 포함하는 단위 단열 패널 어셈블리(101)가 복수 개로 연속 배치되어 이루어지되,상기 멤브레인(150)의 고정을 위하여, 상기 상부 단열 패널(120)에 설치되는 앵커 스트립(23) 대신에 상기 앵커 스트립(23)의 위치에 열 보호 부재(170)가 대체되는 것을 특징으로 하는, 앵커 스트립이 제거된 액화가스 화물창의 인슐레이션 구조.
- 청구항 10에 있어서,상기 상부 단열 패널(120)에는 상기 열 보호 부재(170)를 관통하여 고정 베이스 서포트(122)가 설치되어,상기 멤브레인(150)을 고정하기 위한 점 용접은 상기 고정 베이스 서포트(122)에 수행되고, 상기 멤브레인(150) 간의 연결을 위한 선 용접은 상기 열 보호 부재(170) 위에 수행되는 것을 특징으로 하는, 앵커 스트립이 제거된 액화가스 화물창의 인슐레이션 구조.
- 청구항 10에 있어서,상기 열 보호 부재(170)는 알루미늄 포일(aluminum foil) 위에 글라스 크로스(glass cross)를 덮은 재질을 사용하는 것을 특징으로 하는, 앵커 스트립이 제거된 액화가스 화물창의 인슐레이션 구조.
- 청구항 1 내지 청구항 12중 어느 한 항에 기재된 인슐레이션 구조를 구비하는 화물창.
- 청구항 13에 기재된 화물창을 구비하는 액화가스 운반선.
Priority Applications (5)
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EP16839408.8A EP3339160B1 (en) | 2015-08-21 | 2016-04-12 | Insulation structure, for liquefied gas cargo hold, having anchor strip removed, cargo hold comprising insulation structure, and liquefied gas carrier comprising cargo hold |
JP2018509568A JP6637161B2 (ja) | 2015-08-21 | 2016-04-12 | アンカーストリップが除去された液化ガス貨物倉の断熱構造、前記断熱構造を備える貨物倉、及び前記貨物倉を備える液化ガス運搬船 |
US15/754,229 US10513316B2 (en) | 2015-08-21 | 2016-04-12 | Insulation structure, for liquefied gas cargo hold, having anchor strip removed, cargo hold comprising insulation structure, and liquefied gas carrier comprising cargo hold |
ES16839408T ES2913652T3 (es) | 2015-08-21 | 2016-04-12 | Estructura de aislamiento, para bodega de carga de gas licuado, habiendo retirado los tirantes de anclaje, bodega de carga que comprende la estructura de aislamiento, y portador de gas licuado que comprende la bodega de carga |
CN201680061628.XA CN108137134B (zh) | 2015-08-21 | 2016-04-12 | 绝缘结构、货舱以及包括货舱的液化气运输船 |
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KR1020150117940A KR101751838B1 (ko) | 2015-08-21 | 2015-08-21 | 앵커 스트립이 제거된 액화가스 화물창의 인슐레이션 구조, 그 인슐레이션 구조를 구비하는 화물창, 및 그 화물창을 구비하는 액화가스 운반선 |
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Publication number | Priority date | Publication date | Assignee | Title |
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WO2019234360A3 (fr) * | 2018-06-06 | 2020-03-05 | Gaztransport Et Technigaz | Cuve etanche et thermiquement isolante |
CN112639351A (zh) * | 2018-06-06 | 2021-04-09 | 气体运输技术公司 | 绝热密封贮罐 |
US11543078B2 (en) | 2018-06-06 | 2023-01-03 | Gaztransport Et Technigaz | Thermally-insulating sealed tank |
US11796131B2 (en) | 2018-06-06 | 2023-10-24 | Gaztransport Et Technigaz | Thermally-insulating sealed tank |
CN112298457A (zh) * | 2020-11-06 | 2021-02-02 | 中太海事技术(上海)有限公司 | 一种用于液化天然气储存的a型舱次屏蔽及其防护装置 |
FR3139868A1 (fr) * | 2022-09-16 | 2024-03-22 | Gaztransport Et Technigaz | Bande d’ancrage et procédé de fabrication d’une telle bande d’ancrage |
Also Published As
Publication number | Publication date |
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CN108137134B (zh) | 2020-05-19 |
KR20170022662A (ko) | 2017-03-02 |
US20180244355A1 (en) | 2018-08-30 |
KR101751838B1 (ko) | 2017-07-19 |
JP2018525586A (ja) | 2018-09-06 |
EP3339160B1 (en) | 2022-03-09 |
ES2913652T3 (es) | 2022-06-03 |
JP6637161B2 (ja) | 2020-01-29 |
CN108137134A (zh) | 2018-06-08 |
EP3339160A4 (en) | 2019-08-21 |
EP3339160A1 (en) | 2018-06-27 |
US10513316B2 (en) | 2019-12-24 |
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