WO2020179956A1 - 저온탱크용 진공단열장치 - Google Patents
저온탱크용 진공단열장치 Download PDFInfo
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- WO2020179956A1 WO2020179956A1 PCT/KR2019/002667 KR2019002667W WO2020179956A1 WO 2020179956 A1 WO2020179956 A1 WO 2020179956A1 KR 2019002667 W KR2019002667 W KR 2019002667W WO 2020179956 A1 WO2020179956 A1 WO 2020179956A1
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- Prior art keywords
- vacuum
- low
- tank
- low temperature
- vacuum jacket
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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
- F17C3/08—Vessels not under pressure with provision for thermal insulation by vacuum spaces, e.g. Dewar flask
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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
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/001—Thermal insulation specially adapted for cryogenic vessels
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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
- F17C3/04—Vessels not under pressure with provision for thermal insulation by insulating layers
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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
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/12—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge with provision for thermal insulation
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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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0147—Shape complex
- F17C2201/0157—Polygonal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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)
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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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/054—Size medium (>1 m3)
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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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/056—Small (<1 m3)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
- F17C2203/0308—Radiation shield
- F17C2203/032—Multi-sheet layers
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- 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
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- F17C2203/00—Vessel construction, in particular walls or details thereof
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- F17C2203/0391—Thermal insulations by vacuum
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- 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
- F17C2203/0602—Wall structures; Special features thereof
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- 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
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- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0612—Wall structures
- F17C2203/0614—Single wall
- F17C2203/0621—Single wall with three layers
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- 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
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0612—Wall structures
- F17C2203/0626—Multiple walls
- F17C2203/0629—Two walls
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- 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
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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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
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- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0658—Synthetics
- F17C2203/0663—Synthetics in form of fibers or filaments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
- F17C2203/068—Special properties of materials for vessel walls
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- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0103—Exterior arrangements
- F17C2205/0107—Frames
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
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- F17C2205/01—Mounting arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0352—Pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
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- F17C2209/22—Assembling processes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F17C2209/23—Manufacturing of particular parts or at special locations
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- 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
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F17C2221/00—Handled fluid, in particular type of fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
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- 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
- F17C2223/0107—Single phase
- F17C2223/013—Single phase liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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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- 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
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- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/01—Improving mechanical properties or manufacturing
- F17C2260/012—Reducing weight
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Definitions
- the present invention relates to an apparatus for vacuum insulating a low temperature tank, and more particularly, to an apparatus capable of vacuum insulating a low temperature tank for storing and transporting liquefied gas in a cryogenic state.
- Liquefied Natural Gas refers to a colorless, transparent cryogenic liquid in which natural gas containing methane as its main component is cooled to minus 162°C and its volume is reduced to one-600th.
- Such liquefied natural gas is an energy resource.
- an efficient transport plan that can transport in large quantities from the production base to the receiving site at the demand site was reviewed, and as a result, a liquefied natural gas carrier for marine transport of liquefied natural gas appeared. .
- the liquefied natural gas carrier as described above should be provided with a low-temperature tank capable of storing the liquefied natural gas in a cryogenic state for storage and transportation, and such a low-temperature tank has a medium pressure higher than atmospheric pressure and a boiling temperature of -160°C.
- a low-temperature tank capable of storing the liquefied natural gas in a cryogenic state for storage and transportation, and such a low-temperature tank has a medium pressure higher than atmospheric pressure and a boiling temperature of -160°C.
- ultra-low temperatures aluminum alloy, stainless steel, 35% nickel steel, etc.
- a design that can respond to thermal stress and heat shrinkage and a thermal insulation that can prevent heat intrusion. (Insulation) structure installation, etc. is required.
- the low-temperature tank applied in the liquefied natural gas carrier may be classified into a membrane type and a self-supporting type according to its structure, and the membrane type tank is Korean Laid-Open Patent Publication No. 10-2017- As disclosed in 0116584 (closed tank with wrinkled sealing membrane, October 19, 2017), the inner surface of the tank in which liquefied gas is stored is a corrugated thin plate membrane made of stainless steel to enable heat shrinkage in response to heat deformation caused by the liquefied gas.
- a sheet Corrugated Membrane Sheet
- the present invention was conceived to solve the above problems, and by using an insulating material that is constantly maintained in a vacuum so as to store cryogenic liquefied gases such as liquid nitrogen (LN2) or liquid hydrogen (LH2), it has high heat insulation and vacuum stability.
- cryogenic liquefied gases such as liquid nitrogen (LN2) or liquid hydrogen (LH2)
- LN2 liquid nitrogen
- LH2 liquid hydrogen
- the vacuum insulation device for a low temperature tank of the present invention is for a low temperature tank capable of storing a cryogenic fluid such as liquefied hydrogen (LH2) or liquid nitrogen (LN2) by maintaining the low temperature insulation layer in a vacuum state.
- a vacuum insulation device can be provided.
- a part of the vacuum jacket is configured to have a flexible structure that can be contracted according to the contraction of the low temperature tank or the low temperature insulation layer, so that the low temperature tank itself supports the pressure of the cryogenic fluid stored inside, and the low temperature tank by the temperature of the cryogenic fluid It is possible to provide a vacuum insulation device for a low temperature tank capable of coping with the heat shrinkage of
- the present invention maintains the low-temperature insulation layer surrounding the outer shell of the low-temperature tank in a vacuum state at all times to maintain a higher insulation efficiency to ensure long-term reliability, and according to the contraction of the low-temperature tank or the low-temperature insulation layer, vacuum
- As part of the jacket has a flexible structure that can shrink, it supports the pressure of the cryogenic fluid stored inside the low temperature tank itself, and provides a vacuum jacket capable of responding to the heat shrinkage of the low temperature tank by the temperature of the cryogenic fluid, providing long-term reliability. There is an advantage that it is possible to manufacture a high large tank.
- FIG. 1 is a perspective view showing a vacuum insulation device according to an embodiment of the present invention.
- FIG. 2 is a cross-sectional view showing a vacuum insulation device according to a first embodiment of the present invention.
- 3 to 5 are cross-sectional views showing various modified examples of the deformable joint part according to the first embodiment of the present invention.
- FIG. 6 is a perspective view showing a vacuum insulation device according to a second embodiment of the present invention.
- FIG 7 and 8 are cross-sectional views showing various modifications of the low-temperature insulation layer according to an embodiment of the present invention.
- FIG. 9 is a view showing various modifications of the internal exhaust space according to the section AA′ of FIG. 6.
- FIG. 10 is a cross-sectional view showing a vacuum insulation device according to a third embodiment of the present invention.
- 11 to 15 are cross-sectional views showing various modified examples of the vacuum insulation device according to the third embodiment of the present invention.
- 16 is a cross-sectional view showing a vacuum jacket having a double structure according to an embodiment of the present invention.
- 17 to 21 are cross-sectional views showing a vacuum insulation device according to a fourth embodiment of the present invention.
- the present invention provides a low-temperature tank having a storage space for accommodating a cryogenic fluid therein, a low-temperature insulating layer provided to surround the outer shell of the low-temperature tank, and the inner space is maintained in a vacuum state, and the low-temperature insulating layer And a vacuum jacket that is sealed to surround the outer surface of and maintains airtightness with the outside, wherein at least a part of the vacuum jacket has a flexible structure capable of contracting or expanding.
- the vacuum jacket covers the outer surface of the low-temperature insulation layer and is formed of a plurality of flat plates spaced apart from each other by a predetermined distance, and is formed between the plurality of smooth portions to have the flexible structure. May contain vagina.
- the deformable joint part may be made of a polymeric elastomer that connects the plurality of smoothing parts and is stretchable in response to deformation of the inner space of the vacuum jacket.
- the polymeric elastomer is interposed between the plurality of smoothing portions and adhered to the outer ends in the width direction of the plurality of smoothing portions.
- the plurality of smoothing portions are provided so as to overlap each other in the thickness direction with at least one adjacent smoothing portion, and slide when the inner space is deformed to correspond to the contraction or expansion of the inner space
- the polymer elastic body comprises the plurality of It is provided on an upper surface of a portion overlapping the smooth portions of the vacuum jacket, and is formed to expand and contract in response to deformation of the smooth portion.
- the low temperature insulating layer is made of a plurality, and the plurality of low temperature insulating layers are provided to be spaced apart from each other, so that an internal discharge space forming a flow path for forming a vacuum between a plurality of adjacent low temperature insulating layers is provided. Can be formed.
- the plurality of low-temperature insulation layers are provided to form multiple layers in the thickness direction, and are fixed to be spaced apart by a predetermined distance from at least one of the outer shell of the low-temperature tank, a vacuum jacket, or an adjacent low-temperature insulation layer and a fixing bolt. .
- the vacuum insulator may further include a discharge pipe provided in the inner discharge space and having a suction hole communicating with the inner space of the vacuum jacket on an outer circumferential surface.
- the deformable joint is formed integrally with the plurality of smoothing portions, and forms an uneven portion curved outward in the thickness direction, and the uneven portion is a contraction of the inner space of the vacuum jacket or It is characterized by being deformed according to expansion.
- the deformable joint portion may have an internal discharge space forming a flow path for forming a vacuum inside the uneven portion curved outward in the thickness direction.
- the vacuum jacket is integrally formed by welding the plurality of smoothing portions to each other, but the welding line formed on the outer surface of the vacuum jacket is provided in the inner space of the vacuum jacket, and a position coinciding with the inner discharge space connected to the vacuum pump Can be formed in
- the vacuum jacket is integrally formed by welding the plurality of smoothing portions to each other, but the vacuum insulation device is provided on the inside of the welding line formed on the outer surface of the vacuum jacket to prevent thermal deformation of the low temperature insulation layer adjacent to the welding line. It may further include a high-temperature insulation.
- the vacuum jacket includes a first vacuum jacket surrounding an outer surface of the low temperature insulating layer and a second vacuum jacket provided to surround the outer surface of the first vacuum jacket, wherein the vacuum insulating device includes the first vacuum jacket and a first vacuum jacket. 2 It may further include a spacer interposed between the vacuum jacket and provided to separate the first vacuum jacket and the second vacuum jacket by a predetermined distance.
- the vacuum jacket covers the outer surface of the low temperature insulation layer, and the flexible portion having the flexible structure, and at least a part of the vacuum jacket are configured in a sturdy structure to support the vacuum insulation device. It is characterized by consisting of wealth.
- the low temperature tank is made of a polyhedron
- the flexible portion is formed to surround the outer surface of the low temperature insulating layer forming the plane of the vacuum jacket, and the strong portion to surround the outer surface of the low temperature insulating layer forming the corner of the vacuum jacket. Can be formed.
- the vacuum jacket may have an internal discharge space forming a flow path for forming a vacuum inside the robust part.
- the robust portion is formed to surround an outer surface of the low temperature insulating layer forming a lower portion of the vacuum jacket, and supports the bottom surface of the vacuum insulating device.
- the vacuum insulation device may further include a tank support that supports the low temperature tank in a state of being floated in the air, and the lower end of the vacuum jacket is formed to be spaced apart from the ground by a predetermined distance.
- the tank support supports the tank hanger and the tank hanger connected to the upper surface of the low-temperature tank, and the upper support constituting a part of the vacuum jacket and the lower end of the vacuum jacket are extended upward so as to be spaced apart from the ground. It may include a side support for supporting the upper support.
- the tank support may include a tank hanger connected to the side of the low temperature tank and a side support that forms a part of the vacuum jacket and extends upward so that the lower end of the vacuum jacket is spaced apart from the ground to support the tank hanger. have.
- FIG. 1 is a perspective view showing a vacuum insulation device according to an embodiment of the present invention
- FIG. 2 is a cross-sectional view showing a vacuum insulation device according to a first embodiment of the present invention.
- the vacuum insulation device 1000 according to an embodiment of the present invention includes a low temperature tank 100 having a storage space for accommodating a cryogenic fluid therein, and a low temperature insulation layer 200 provided to surround the outer shell 110 of the low temperature tank.
- a vacuum pump 410 for maintaining the heat insulating layer 200 in a vacuum state.
- the vacuum insulation device 1000 maintains the internal space of the vacuum jacket 300 provided with the low temperature insulation layer 200 at a constant vacuum pressure, suctions the gas or moisture remaining inside and discharges it to the outside. , It is possible to further increase the thermal insulation performance of the low temperature insulating layer 200.
- the pressure of the low temperature insulating layer 200 is maintained in a vacuum, the low temperature insulating layer 200 is subjected to compression of 1 atmosphere, and a material having sufficient compressive strength should be used so as not to decrease the compressibility accordingly.
- R-PUF reinforced poly urethane foam
- the present applicant has confirmed that when the pressure of the low temperature insulating layer 200 is maintained in a vacuum state, the thermal conductivity of the low temperature insulating layer 200 is reduced to less than half than that of the low temperature insulating layer placed under a pressure of 100 KPa.
- the operation of the vacuum pump 410 for maintaining the internal space at the vacuum pressure means when the cryogenic fluid is stored in the low temperature tank 100, and the operation of the vacuum pump 410 is It is preferable that the low temperature tank 100 is properly operated and controlled for operation, testing, maintenance, etc.
- the outer shell 110 of the low temperature tank 100 is designed to withstand the static pressure and dynamic pressure of the cryogenic fluid stored therein, and is preferably made integrally sealed so that the fluid inside the tank does not leak.
- the vacuum jacket 300 of the vacuum insulation device 1000 of the present invention is made to have a flexible structure capable of contracting or expanding at least a part, so that the outer shell 110 of the low temperature tank 100 or the low temperature insulation layer 200 are contracted or It is characterized in that it is formed to deform the outer surface corresponding to the inner space that is deformed according to the expansion.
- the vacuum jacket 300 is sealed to prevent air from flowing into the low temperature insulation layer 200 interposed therein.
- the outer shell 110 of the low temperature tank 100 is a cryogenic metal capable of supporting the pressure of the cryogenic fluid stored therein. It can be made of materials (nickel steel, stainless steel, aluminum, etc.), and by having a conventional corrugated surface inside, it overcomes the shortcomings of a membrane type low temperature tank that relies on the hull because it cannot support itself. It is possible to provide a V-PUF insulation type vacuum insulation device capable of contracting and expanding the tank accordingly.
- the vacuum pump 410 may be configured in plural to maintain a vacuum in the entire area according to the standard of the low temperature tank 100, and an exhaust pipe 430 connected to the inside of the vacuum jacket 300, It may be configured to include an exhaust valve 420 for opening and closing the exhaust pipe 430, and the vacuum pump 410 uses a vacuum pump commonly used commercially to reduce the vacuum inside the vacuum jacket 300. Can be used for
- the vacuum jacket 300 is formed between a plurality of smoothing portions 310 and the plurality of smoothing portions 310 formed of flat plates spaced apart from each other by a predetermined distance while surrounding the outer surface of the low temperature insulating material 200, so that the flexible structure It may be made including a deformable joint 320 having a, at this time, in order to contract or expand the plurality of smoothing portions 310 as the inner space of the vacuum jacket 300 is contracted or expanded, adjacent deformable joints When the pressure 320 is pressed, the deformable joint part 320 is contracted or expanded, so that it can react to the deformation inside the vacuum jacket 300.
- the flat plate may be made of metal or plastic having a low gas permeability and rigidity to the vacuum pressure inside the vacuum jacket 300.
- the vacuum jacket 300 operates the vacuum pump 410 connected during manufacture to form an internal space in a vacuum state, and then seals the vacuum jacket 300 to maintain a vacuum state, A separate measuring means capable of measuring the degree of vacuum in the inner space of the jacket 300 is provided, and when the degree of vacuum in the inner space of the vacuum jacket 300 is lowered, the vacuum pump 410 is re-operated, at least the When the cryogenic fluid is stored in the low temperature tank 100, it is desirable to manage to maintain a vacuum state at all times.
- FIGS. 3 to 5 are cross-sectional views showing various modified examples of the deformable joint part 320 according to the first embodiment of the present invention.
- the joint part 320 connects the plurality of smoothing parts 310 and may be made of an elastic polymeric elastomer 231 in response to the deformation of the inner space of the vacuum jacket 300.
- the polymeric elastomer 231 is interposed between the plurality of smoothing portions 310 and adhered to the outer ends in the width direction of the plurality of smoothing portions 310, so that the plurality of smoothing portions By connecting the 310, it is possible to perform sealing of the vacuum jacket 300.
- the polymeric elastomer 231 is compressed so that the space between a plurality of adjacent smoothing portions 310 is narrowed, and the vacuum jacket (300) Can respond to internal deformation.
- a concave groove 311A formed so that a part of the polymer elastomer 321 is concave increases the contact area between the polymer elastomer 321 and the smoothing part 310, and sealing force of the vacuum jacket 300 Will be able to increase.
- the high-molecular elastomer 321 surrounding the low-temperature heat insulating layer 200 is formed in an integral mesh shape in which the space in which the smoothing part 310 is disposed is formed into a hollow mesh.
- the polymeric elastomer 321 is contracted to be bent inwardly opposite to the low-temperature insulating layer 200, and compresses the low-temperature insulating layer 200 inward, so that the low-temperature insulating layer 200 and the low-temperature tank It is possible to increase the adhesion between the outer skin 110 of (100).
- the plurality of smoothing portions 310 is at least one adjacent It is provided so as to overlap with each other in the thickness direction with the above smoothing portion 310, and when the inner space is deformed, the overlapping smoothing portions 310 slide to correspond to contraction or expansion of the inner space, and the deformable joint portion
- the polymeric elastomer 321 constituting 320 is adhered to the upper surface of the portion overlapped with the plurality of smoothing portions 310 and sealed to maintain the airtightness of the vacuum jacket 300, and the smoothing portion 310 It may be formed to expand and contract in response to slipping.
- the polymeric elastomer 321 having the above-described configuration may be formed in various shapes without departing from the gist of the present invention other than in a semicircular donut shape curved toward the outside.
- FIG. 6 is a perspective view showing a vacuum insulation device 1000 according to a second embodiment of the present invention
- FIGS. 7 and 8 are various modifications of the low temperature insulation layer 200 according to the second embodiment of the present invention. It is a cross-sectional view
- FIG. 9 is a cross-sectional view showing various modifications of the internal exhaust space 210 according to cross-section AA' of FIG. 6, and referring to FIGS.
- a vacuum according to a second embodiment of the present invention
- the low temperature insulating layer 200 of the heat insulating device 1000 is formed in plural, the plurality of low temperature insulating layers 200 are provided to be spaced apart from each other, so that the vacuum pump 410 and the vacuum pump 410 and the It is connected, it is possible to form an internal discharge space 210 forming a flow path for forming a vacuum.
- the internal discharge space 210 is a configuration for inducing an internal exhaust fluid to form a vacuum inside the vacuum jacket 300, and may be formed by perforating a part of the low temperature insulation layer 200, preferably the The low temperature insulating layer 200 may be divided into a plurality, and a space spaced apart between the partitioned plurality of low temperature insulating layers 200 may be utilized.
- the vacuum pump 410 may be connected to any part of the internal discharge space 210 formed in the vacuum jacket 300 to suck internal fluid for vacuum of the low temperature insulating layer 200.
- the exhaust pipe 430 that sucks the internal fluid is configured in plural to be connected to the vacuum jacket 300.
- Figure 7 (a) is a view showing the low temperature insulating layer 200 bonded and chemically attached to the outer shell 110 of the low temperature tank 100
- Figure 7 (b) is the low temperature tank 100
- the plurality of low temperature insulating layers 200 May be adhered to and adhered to the outer surface of the outer surface of the outer shell 110 of the low temperature tank 100 and the inner surface of the vacuum jacket 300, but excessive use of adhesive may cause the low temperature heat insulating layer 200 to be vacuumed or to shrink the low temperature tank It may be a problem at the time, and accordingly, by using the fixing bolt 220, by being fixed to the outer shell 110 of the low temperature tank 100, the inner discharge space 210 between the adjacent low temperature insulating material 200 Can be arranged spaced apart to form.
- FIG. 8 is a view showing a state in which the plurality of low temperature insulating layers 200 are provided to form a multi-layer in the thickness direction, and FIG. 8 (a) is to form a multi-layer with any one low temperature insulating layer 200 in the thickness direction.
- the other provided low-temperature insulation layer 200 is arranged to adhere only a part of the outer side, and may be adhered to form a continuous inner discharge space 210 through which the interlayer internal fluid stacked in the thickness direction can move.
- the flow of the internal fluid alternately moves in a direction perpendicular to each other between the layers stacked in the thickness direction, and moves from the low temperature tank 100 to the vacuum jacket 300, and is provided in the internal discharge space 210 It is discharged to the outside through the exhaust pipe 430.
- the plurality of low temperature insulating materials 300 are provided to form multi-layers in the thickness direction, and the outer shell 110 of the low temperature tank 100, vacuum
- the jacket 300 or at least one of the adjacent low-temperature insulation 200 and the fixing bolt 220 are fixed to be spaced apart by a predetermined distance, thereby providing an internal discharge space 210 in which the internal fluid can be discharged more smoothly. Can be formed.
- the vacuum insulation device 1000 is provided in the internal exhaust space 210 However, it may be configured to further include a discharge pipe 440 formed on the outer circumferential surface of the suction hole 441 communicating with the inner space of the vacuum jacket 210.
- the discharge pipe 440 is composed of a plurality so as to pass between the internal discharge space 210 partitioned in the low temperature insulation layer 200, but may be connected continuously using a pipe joint such as an elbow pipe or a cross pipe. .
- an exhaust pipe 430 connected to the vacuum pump 410 is connected to a part of the discharge pipe 440 to eject the internal fluid flowing into the discharge pipe 440 to the outside, and the discharge pipe 400 Vacuum pressure may be applied to the low temperature insulating layer 200 by suctioning the internal fluids remaining in the low temperature insulating layer 200 through the suction hole 441 perforated on the outer surface so that the interior and the exterior of the device communicate with each other.
- FIG. 10 is a cross-sectional view showing a vacuum insulation device 1000 according to a third embodiment of the present invention.
- the deformable joint part of the vacuum insulation device 1000 according to the third embodiment of the present invention 320 is formed integrally with the plurality of smoothing portions 310, and constitutes an uneven portion 322 curved outward in the thickness direction, and the uneven portion 322 is formed of an inner space of the vacuum jacket 310 It can be deformed by contraction or expansion.
- the vacuum jacket 300 is entirely formed of steel, reinforcing the outside of the vacuum insulator 1000, and the uneven portion 322 is bent outward in the thickness direction so that the vacuum jacket 300 According to the contraction or expansion of the inner space, it can be deformed while contracting or expanding.
- the uneven part 322 of the vacuum jacket 300 is contracted to the curved outside, and when the internal space is expanded, the uneven part 322 The curved slope of is deformed to respond to the expansion of the inner space by gently expanding.
- the concave-convex portion 322 may induce the condensation water generated on the outer surface of the vacuum jacket 300 to flow in the direction of its own weight by condensing.
- the vacuum jacket 300 may be manufactured to be integrated through welding between a plurality of smoothing portions 310 or uneven portions 320, and at this time, the low temperature insulating layer 200 is thermally deformed and In order to prevent damage, by providing a high temperature insulating material 500 inside the vicinity of the welding, it is possible to prevent damage to the low temperature insulating layer 200.
- the high-temperature insulating material 500 is inside the welding line B where welding is performed. It is preferable to be provided.
- the high-temperature insulation material 500 may be made of a heat-resistant material such as glass fiber, carbonized fiber, or silica fiber, and is not deformed by welding heat, but a lightweight material so as not to excessively increase the total weight of the vacuum insulation device 1000. It is preferable to use.
- FIG. 12 is a view showing a modified example of the vacuum jacket 300 according to the case where the above-described internal discharge space 210 is sufficiently large, and FIGS. 12A and 12B show the internal discharge space 210 ) Shows a modified example in which the discharge pipe 440 is provided, and (c) and (d) show a modified example when the discharge pipe 440 is not provided in the internal discharge space 210, and have.
- the welding line (B) of the vacuum jacket 300 is provided to match the discharge pipe 440, the discharge pipe 440 and the inner surface of the vacuum jacket 300 It is formed to be spaced apart by a predetermined distance between the outer surfaces of the low temperature insulating layer 200, and may be configured so that welding heat due to welding of the vacuum jacket 300 is not transferred to the low temperature insulating layer 200. In this case, it is preferable that the discharge pipe 440 is formed in a sufficiently large size to minimize heat transfer according to the discharge pipe 440 or made of a material having heat resistance. Referring to (b) of FIG.
- a part of the vacuum jacket 300 is bent outward to form an internal discharge space 210 inside the bent vacuum jacket 300, and the internal discharge space formed at this time (
- the welding line (B) so as to contact the upper surface of the discharge pipe 440 provided in 210, it is possible to prevent damage to the low temperature insulating layer 200.
- FIG. 12(C) shows that the inner discharge space 210 is formed sufficiently wide on the outer surface of the low temperature insulation layer 200, and the adjacent smoothing so that the formed inner discharge space 210 and the welding line (B) coincide.
- FIG. 13 and 14 are views showing a modified example of the vacuum insulator 1000 configured so that the high-temperature insulation material 500 is provided in the internal discharge space 210 and is configured to coincide with the welding line B.
- the high temperature insulating material 500 is the inside of the vacuum jacket 300 coinciding with the discharge pipe 440 and the welding line (B) having the internal discharge space (210).
- the high-temperature insulating material 500 may be formed to be concave inside to accommodate the discharge pipe 440 (a) to (b), and the discharge pipe outside of the high-temperature insulating material 500
- a welding line (B) formed on the outer surface of the vacuum jacket 300 may be configured to be formed at a position coincident with the high temperature insulating material 500 and the internal discharge space 210.
- the internal discharge space 210, the high temperature insulation material 500, and the welding line B are formed at the same position, and at this time, the high temperature
- the heat insulating material 500 is partially concave from the outside to the inside to form the internal discharge space 210 (d), or the internal discharge space 210 formed inside the vacuum jacket 300 bent outward and the low temperature insulation layer ( It is interposed (e) between 200) to prevent deformation and damage of the low temperature insulating layer 200 due to welding.
- the high-temperature insulating material 500 is formed with a pore to suck the internal fluid remaining in the low-temperature insulating layer 200 by the vacuum pressure sucked from the vacuum pump 410, or is woven into fibers so that the internal fluid can pass. It is preferable that it is made of a material that has pores.
- the deformable joint 320 is the irregularities curved outward in the thickness direction. It consists of a portion 322, and is connected to the vacuum pump 410 inside the uneven portion 322, and an internal discharge space 210 forming a flow path for forming a vacuum may be formed.
- the uneven portion 322 is formed by welding the outer ends 310a and 310b of the smoothing portion 310 outwardly and adjacent to each other, and at this time, the smoothing forming the uneven portion 322
- the angle between the outer ends 310a and 310b of the part 310 and the outer surface of the low temperature insulation layer 200 at the inner side is bent to form an acute angle so that it contracts or expands according to the bottle shape of the inner space of the vacuum jacket 300 Can be configured.
- the internal discharge space 210 formed inside the uneven portion 322, the high-temperature insulation material 500, and the welding line (B) are arranged so that they can be formed at a position coincident with each other, and the vacuum insulation device 1000 The installation work of the can be more simplified.
- FIG. 16 is a cross-sectional view showing a vacuum jacket having a double structure according to an embodiment of the present invention.
- the vacuum insulation device 1000 having a double vacuum insulation structure shows the low temperature insulation layer 200.
- first vacuum jacket 300A and the second vacuum jacket 300B are connected to separate exhaust pipes 430A and 430B to each have an independent vacuum space.
- the second vacuum jacket 300B is designed to maintain the vacuum state for a certain period of time or longer to maintain stability during the transport period of the cargo. desirable.
- FIGS. 17 to 21 are cross-sectional views showing a vacuum insulation device according to a fourth embodiment of the present invention.
- a vacuum insulation device 1000 according to a fourth embodiment of the present invention is described above.
- the vacuum jacket 300 surrounds the outer surface of the low temperature insulation layer 200, and the flexible portion 340 having the flexible structure and at least a part of the vacuum jacket 300 are configured in a sturdy structure, and the vacuum insulation device 1000 It is preferable that it is made of a strong part 330 that supports, and in this case, the strong structure can be combined with a reinforcing material or a support for supporting the vacuum insulator 1000 by the vacuum jacket 300 forming the strong part 330 Or it means to have a structure formed to support the load of the vacuum insulation device 1000 by itself, for example, the robust structure is made of Invar steel forming the outer shell 110 of the low temperature tank 100 It is preferable that the flexible part 340 is made of the above-described deformable sound part 320.
- the low-temperature tank 100 of the vacuum insulator 1000 includes a plurality of It is made of a polyhedron having an edge connecting the plane of the plurality of planes and the flexible part 340 is formed to surround the outer surface of the low temperature insulation layer 200 forming the plane of the vacuum jacket 300, and the robustness
- the part 330 is formed to surround the outer surface of the low temperature insulation material 200 forming the corner of the vacuum jacket 300, and according to the deformation of the inner space of the vacuum jacket 300, the flexible part 340 It is preferable to form a structure supporting the low temperature insulating layer 200 surrounding the outer shell 110 of the low temperature tank 100 by being compressed inward or expanded outward.
- the strong part 330 may be fixed to an external structure, and it is preferable to use the space formed inside the strong part 330 as the internal discharge space 210 connected to the vacuum pump 410 Do.
- FIG. 18 is a cross-sectional view showing a modified example of the vacuum insulation device 1000 according to the fourth embodiment of the present invention
- FIG. 19 is a sequence of installing the vacuum insulation device 1000 according to FIG.
- the vacuum insulation device 1000 is configured such that the robust portion 330 covers the outer surface of the low temperature insulation layer 200 forming the lower portion of the vacuum jacket 300. Is formed, it may be configured to support the bottom surface of the vacuum insulator 1000.
- the flexible part 340 of the vacuum jacket 300 is formed as a deformable joint part 320 that contracts or expands according to the deformation of the internal space of the vacuum jacket 300, and the vacuum insulation device 1000 Except for the lower part of ), expansion and contraction in the upper direction can be performed.
- the low-temperature tank 100 of the vacuum insulation window 1000 is made of a large tank with a volume of 1000M3 or more, and when manufactured in a cylinder shape that is robust to internal pressure, it is possible to manufacture a large tank with a volume of 10000M3 or more. And, in the case of the large tank as described above, as shown in FIG. 19, the R-PUF constituting the low temperature heat dissipation layer 200 is sprayed or adhered to the inside of the sturdy part 330 seated on the ground. A pre-fabricated low temperature tank 100 is mounted and fixed above the low temperature heat dissipation layer 200 (a).
- the vacuum insulator 1000 of the present invention having the manufacturing steps as described above makes it possible to manufacture an ultra-large tank and vacuum insulation that cannot be transported on site.
- the vacuum insulator 1000 for a low-temperature tank is more suitable for transport and storage of cryogenic liquefied gases such as liquefied hydrogen (LH2) or liquefied nitrogen (LN2), and contains the liquefied hydrogen (LH2).
- cryogenic liquefied gases such as liquefied hydrogen (LH2) or liquefied nitrogen (LN2)
- LH2 liquefied hydrogen
- the density of the liquefied hydrogen is 0.08988 g/L, which does not significantly affect the weight of the low temperature tank 100. Therefore, in Figures 20 and 21, the low temperature tank 100 is supported in a state of being floated in the air, and further includes a tank support 10 formed such that the lower end of the vacuum jacket 300 is spaced a predetermined distance from the ground 1 It shows a vacuum insulation device, and referring to FIG.
- the tank support 20 supports the tank hanger 13 and the tank hanger 130 connected to the upper surface of the low temperature tank 100, and the The upper support 12 forming a part of the vacuum jacket 300 and the layered support 11 extending upward so that the lower end of the vacuum jacket 300 is spaced apart from the ground 1, supporting the upper support 12 It can be configured to include.
- the vacuum jacket 300 is bonded to the lower surface of the upper support 12 of the tank support 10 to form a unity, so that the upper support 12 plays the role of the robust part of the vacuum jacket 300 described above. Will perform.
- the tank support 10 in the other aspect of the present invention is a tank hanger 13 connected to the side of the low temperature tank 100 and a part of the vacuum jacket 300 It may be configured to include a side support 13 extending upward so that the lower end of the vacuum jacket is spaced apart from the ground 1 to support the tank hanger.
- the side support 13 may be bonded to the side surface of the vacuum jacket 300 to serve as the above-described robust part.
- deformable joint 321 polymer elastomer
- Adhesive side B Welding line
- tank support 11 side support
- the present invention relates to a vacuum insulator for a low-temperature tank for storing and transporting liquefied gas in a cryogenic state, and has an effect capable of manufacturing a large tank capable of storing and transporting liquefied gas in a cryogenic state. That is, there is a possibility of use in the manufacturing industry of a ship or a ground type tank equipped with a low-temperature tank for storing and transporting liquefied gas in a cryogenic state.
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Abstract
Description
Claims (20)
- 내부에 초저온 유체를 수용하는 저장공간을 갖는 저온탱크;저온탱크의 외피를 감싸도록 구비되는 저온단열층; 및내부공간이 진공상태로 유지되며, 상기 저온단열층의 외면을 감싸도록 밀봉되어 외부와의 기밀을 유지하는 진공자켓;을 포함하며,상기 진공자켓은 적어도 일부가 수축 또는 팽창 가능한 유연구조를 갖는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제1항에 있어서,상기 진공자켓은,상기 저온단열층의 외면을 감싸며 서로 소정거리 이격된 평판으로 이루어진 복수의 평활부와,상기 복수의 평활부 사이에 형성되어 상기 유연구조를 갖는 변형성이음부를 포함하는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제2항에 있어서,상기 변형성이음부는 상기 복수의 평활부를 연결하며, 상기 진공자켓의 내부공간의 변형에 대응되어 신축 가능한 고분자탄성체로 이루어지는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제3항에 있어서,상기 고분자탄성체는 상기 복수의 평활부 사이에 개재되어, 상기 복수의 평활부의 넓이 방향으로의 외측단에 접착되는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제3항에 있어서,상기 복수의 평활부는 인접하는 적어도 하나 이상의 평활부와 두께방향으로 서로 겹쳐지도록 구비되어, 상기 내부공간의 변형 시에 미끄러지며 상기 내부공간의 수축 또는 팽창에 대응되며,상기 고분자탄성체는 상기 복수의 평활부들에 겹쳐진 부위의 상면에 구비되어, 상기 진공자켓의 기밀을 유지하며, 상기 평활부의 변형에 대응되어 신축되도록 형성되는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제1항에 있어서,상기 저온단열층은 복수로 이루어지되,상기 복수의 저온단열층은 서로 이격되도록 구비되어, 인접하는 복수의 저온단열층 사이에 진공형성을 위한 유로를 이루는 내부배출공간을 형성하는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제6항에 있어서,상기 복수의 저온단열층은 두께방향으로 다층을 이루도록 구비되되,상기 저온탱크의 외피, 진공자켓 또는 인접하는 저온단열층 중 적어도 하나 이상과 고정볼트를 이용하여 소정거리 이격되도록 고정되는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제7항에 있어서,상기 진공단열장치는 상기 내부배출공간에 구비되되, 외주면에 상기 진공자켓의 내부공간과 연통된 흡입공이 형성된 배출파이프;를 더 포함하는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제2항에 있어서,상기 변형성이음부는 상기 복수의 평활부와 일체로 형성되되, 두께방향으로의 외측으로 만곡된 요철부를 이루며, 상기 요철부는 상기 진공자켓의 내부공간의 수축 또는 팽창에 따라 변형되는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제9항에 있어서,상기 변형성이음부는 두께방향의 외측으로 만곡된 상기 요철부의 내측으로, 진공형성을 위한 유로를 이루는 내부배출공간을 형성하는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제9항에 있어서,상기 진공자켓은 상기 복수의 평활부가 서로 용접되어 일체를 이루되, 상기 진공자켓의 외면에 이루어지는 용접선은 상기 진공자켓의 내부공간에 구비되어 상기 내부배출공간과 일치하는 위치에 형성되는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제9항에 있어서,상기 진공자켓은 상기 복수의 평활부가 서로 용접되어 일체를 이루되,상기 진공단열장치는 상기 진공자켓의 외면에 이루어지는 용접선의 내측에 구비되어, 상기 용접선 인근의 저온단열층의 열변형을 방지하는 고온단열재;를 더 포함하는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제1항에 있어서,상기 진공자켓은 상기 저온단열층의 외면을 감싸는 제1진공자켓 및 상기 제1진공자켓의 외면을 감싸도록 구비되는 제2진공자켓을 포함하되,상기 진공단열장치는 상기 제1진공자켓과 제2진공자켓 사이에 개재되어, 상기 제1진공자켓과 제2진공자켓을 일정거리 이격시키도록 구비되는 스페이서;를 더 포함하는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제1항 내지 제13항 중 어느 하나의 항에 있어서,상기 진공자켓은 상기 저온단열층의 외면을 감싸며 상기 유연구조를 갖는 유연부와, 상기 진공자켓의 적어도 일부가 강건한 구조로 구성되어 상기 진공단열장치를 지지하는 강건부로 이루어지는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제14항에 있어서,상기 저온탱크는 다면체로 이루어지되,상기 유연부는 상기 진공자켓의 평면을 이루는 상기 저온단열층의 외면을 감싸도록 형성되며, 상기 강건부는 상기 진공자켓의 모서리를 이루는 상기 저온단열층의 외면을 감싸도록 형성되는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제14항에 있어서,상기 진공자켓은 상기 강건부의 내측으로 진공형성을 위한 유로를 이루는 내부배출공간을 형성하는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제14항에 있어서,상기 강건부는 상기 진공자켓의 하부를 이루는 상기 저온단열층의 외면을 감싸도록 형성되어, 상기 진공단열장치의 저면을 지지하는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제14항에 있어서,상기 진공단열장치는 상기 저온탱크를 공중에 띄운 상태로 지지하며, 상기 진공자켓의 하단이 지반으로부터 소정거리 이격되도록 형성되는 탱크지지체;를 더 포함하는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제18항에 있어서,상기 탱크지지체는,상기 저온탱크의 상면에 연결되는 탱크걸이와,상기 탱크걸이를 지지하되, 상기 진공자켓의 일부를 이루는 상부지지체 및상기 진공자켓의 하단이 지반으로부터 이격되도록 상방으로 연장되어, 상기 상부지지체를 지지하는 측면지지체,를 포함하는 것을 특징으로 하는 저온탱크용 진공단열장치.
- 제18항에 있어서,상기 탱크지지체는,상기 저온탱크의 측면에 연결되는 탱크걸이와,상기 진공자켓의 일부를 이루며 상기 진공자켓의 하단이 지반으로부터 이격되도록 상방으로 연장되어 상기 탱크걸이를 지지하는 측면지지체,를 포함하는 것을 특징으로 하는 저온탱크용 진공단열장치.
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JP2021547536A JP7213363B2 (ja) | 2019-03-07 | 2019-03-07 | 低温タンク用真空断熱装置 |
KR1020217025985A KR102567420B1 (ko) | 2019-03-07 | 2019-03-07 | 저온탱크용 진공단열장치 |
CA3130445A CA3130445A1 (en) | 2019-03-07 | 2019-03-07 | Vacuum heat-insulation device for low-temperature tank |
PCT/KR2019/002667 WO2020179956A1 (ko) | 2019-03-07 | 2019-03-07 | 저온탱크용 진공단열장치 |
AU2019432673A AU2019432673A1 (en) | 2019-03-07 | 2019-03-07 | Vacuum heat-insulation device for low-temperature tank |
EP19917983.9A EP3910232A4 (en) | 2019-03-07 | 2019-03-07 | VACUUM HEAT INSULATION DEVICE FOR LOW TEMPERATURE TANK |
CN201980093751.3A CN113544429B (zh) | 2019-03-07 | 2019-03-07 | 低温罐用真空隔热装置 |
SG11202108975TA SG11202108975TA (en) | 2019-03-07 | 2019-03-07 | Vacuum heat-insulation device for low-temperature tank |
US17/593,053 US11835182B2 (en) | 2019-03-07 | 2019-03-07 | Vacuum heat-insulation device for low-temperature tank |
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CA3130445A1 (en) | 2020-09-10 |
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EP3910232A1 (en) | 2021-11-17 |
CN113544429B (zh) | 2023-06-06 |
KR20210112386A (ko) | 2021-09-14 |
KR102567420B1 (ko) | 2023-08-17 |
SG11202108975TA (en) | 2021-09-29 |
JP7213363B2 (ja) | 2023-01-26 |
AU2019432673A1 (en) | 2021-08-26 |
US11835182B2 (en) | 2023-12-05 |
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