CN113474248B - Heat insulation wall fixing device for liquefied natural gas storage tank - Google Patents

Heat insulation wall fixing device for liquefied natural gas storage tank Download PDF

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Publication number
CN113474248B
CN113474248B CN201980092466.XA CN201980092466A CN113474248B CN 113474248 B CN113474248 B CN 113474248B CN 201980092466 A CN201980092466 A CN 201980092466A CN 113474248 B CN113474248 B CN 113474248B
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CN
China
Prior art keywords
wall
auxiliary
socket
heat insulating
heat insulation
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Active
Application number
CN201980092466.XA
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Chinese (zh)
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CN113474248A (en
Inventor
千秉熙
朴世伦
张东爀
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Hanhua Ocean Co ltd
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Hanhua Ocean Co ltd
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Classifications

    • 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
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2221/00—Methods and means for joining members or elements
    • B63B2221/02—Methods and means for joining members or elements by welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2221/00—Methods and means for joining members or elements
    • B63B2221/08—Methods and means for joining members or elements by means of threaded members, e.g. screws, threaded bolts or nuts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2221/00—Methods and means for joining members or elements
    • B63B2221/10—Methods and means for joining members or elements using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2231/00—Material used for some parts or elements, or for particular purposes
    • B63B2231/32—Vegetable materials or material comprising predominately vegetable material
    • B63B2231/34—Wood or wood products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2231/00—Material used for some parts or elements, or for particular purposes
    • B63B2231/40—Synthetic materials
    • B63B2231/50—Foamed synthetic materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/052—Size large (>1000 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • 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
    • F17C2203/0354—Wood
    • 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
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0626—Multiple walls
    • F17C2203/0629—Two walls
    • 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
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0626—Multiple walls
    • F17C2203/0631—Three or more walls
    • 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
    • F17C2203/0639—Steels
    • F17C2203/0643—Stainless steels
    • 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
    • F17C2203/0648—Alloys or compositions of metals
    • F17C2203/0651—Invar
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • 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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/221—Welding
    • 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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/227—Assembling processes by adhesive means
    • 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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/228—Assembling processes by screws, bolts or rivets
    • 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
    • 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
    • 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

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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

The invention discloses a heat insulation wall fixing device for a liquefied natural gas storage tank. The present invention relates to a heat insulating wall fixing device for fixing a main heat insulating wall and an auxiliary heat insulating wall of an liquefied natural gas storage tank, the fixing device including a base socket mounted in a groove formed on an upper surface of an auxiliary heat insulating material of the auxiliary heat insulating wall, wherein the base socket is arranged such that a lower end portion thereof protrudes in a stepped shape, thereby allowing a protruding stepped portion of the base socket to support a lower surface portion of an upper shield plate of the auxiliary heat insulating wall. The invention can improve the strength of the connection area between the main heat insulation wall and the auxiliary heat insulation wall.

Description

Heat insulation wall fixing device for liquefied natural gas storage tank
Technical Field
The present invention relates to a heat insulating wall fixing device for an lng storage tank, and more particularly, to a heat insulating wall fixing device for an lng storage tank, which couples a main heat insulating wall provided for heat insulating lng to an auxiliary heat insulating wall.
Background
Natural gas is transported in a gaseous state via onshore or offshore gas pipelines, or in a liquid state (that is, in the form of liquefied natural gas (liquefied natural gas, LNG)) by LNG carriers to remote destinations. LNG is obtained by cooling natural gas to cryogenic temperatures (about-163 ℃) and the volume of LNG is about 1/600 of the volume of natural gas in the gaseous state. Thus, LNG is suitable for long distance sea transportation.
A structure for transporting or storing LNG, such as an LNG carrier designed to carry LNG from sea to an onshore consumer site, is equipped with a storage tank (commonly referred to as a "cargo hold") that can withstand the cryogenic temperatures of LNG.
Such LNG tanks are divided into independent tanks (Independent Tank Type) and Membrane Type tanks (Membrane Type) depending on whether cargo load is directly applied to the insulation material or not. In general, membrane tanks are classified into GTT NO 96 tanks and MARK III tanks, and independent tanks are classified into MOSS tanks and IHI-SPB tanks.
The NO 96 tank comprises a main sealing wall and an auxiliary sealing wall composed of 0.5 to 0.7 mm thick Invar (Ni content: 36%) film, the main and auxiliary insulating walls being provided in the form of insulating boxes (perlite) manufactured by filling plywood boxes (plywood boxes) with insulating material (e.g. perlite powder).
Since the main sealing wall and the auxiliary sealing wall of the NO 96 tank have almost the same liquid tightness and strength, it is possible to safely support cargo for a considerable period of time with only the auxiliary sealing wall even when leakage occurs in the main sealing wall.
In addition, since the insulation wall of the NO 96 tank is provided in the form of a wooden box filled with insulation material, the NO 96 tank has high compressive strength and rigidity, and thus it can ensure a high level of weldability and welding automation compared to the MARK III tank.
The MARK III tank includes a main sealing wall composed of a stainless steel (SUS) film of 1.2 mm thickness, an auxiliary sealing wall composed of triple sheets (triplex), and main and auxiliary insulating walls provided in the form of an insulating panel manufactured by bonding plywood to an upper or lower surface of polyurethane foam (polyurethane foam).
The main sealing wall of the MARK III tank has folds (folds) to absorb thermal shrinkage caused by LNG at low temperature. Wrinkles may prevent excessive stress from occurring on the film by absorbing deformation of the film.
MARK III tanks have drawbacks in terms of installation/manufacture due to the low level of automation of the main sealing wall constituted by the pleated membrane. However, since stainless steel films and triple flakes are cheaper and easier to construct than invar films and polyurethane foam has good heat insulating properties, MARK III tanks are widely used.
The main insulation wall of the membrane tank is coupled to a Securing device (Securing device) provided on an upper surface of the auxiliary insulation wall to be fixedly mounted on the upper surface of the auxiliary insulation wall.
Fig. 1 is a schematic view of a typical insulated wall fixture for an LNG storage tank.
Specifically, fig. 1 (a) shows a mechanical coupling between the base socket 10 for forming the main heat insulation wall and the upper shield plate 20 of the auxiliary heat insulation wall by coupling of rivets (Rivet), fig. 1 (b) shows a coupling between the base socket 10 and the upper shield plate 20 of the auxiliary heat insulation wall by Bonding, and fig. 1 (c) shows a coupling between the base socket 10 and the upper shield plate 20 of the auxiliary heat insulation wall by Bonding after cutting a portion of the lower surface of the upper shield plate 20 of the auxiliary heat insulation wall. Here, reference numeral "30" indicates an insulating material 30 provided inside the auxiliary insulating wall.
Such a typical heat insulation wall fixing device requires cutting a considerable portion of the upper shield plate 20 for fixing the base socket 10, thereby degrading the strength of the upper shield plate 20 of the auxiliary heat insulation wall.
Although not shown in the drawings, welding of the auxiliary sealing wall is performed to the base socket 10, thereby causing burn damage (burn damage) of the upper shield plate 20 due to welding heat. Accordingly, there is a need to provide a solution to these problems.
Disclosure of Invention
Technical problem
An aspect of the present invention is to provide a heat insulation wall fixing device of an LNG storage tank, which can improve strength of a coupling region between a main heat insulation wall and an auxiliary heat insulation wall by improving a fixing device for coupling the main heat insulation wall and the auxiliary heat insulation wall.
Technical solution
According to an aspect of the present invention, there is provided a heat insulation wall fixing device for an LNG storage tank, comprising: the main heat insulation wall is mainly used for insulating the liquefied natural gas; the auxiliary heat insulation wall is arranged below the main heat insulation wall and is used for secondarily insulating the liquefied natural gas, and comprises an auxiliary heat insulation material and an auxiliary upper protection plate arranged on the auxiliary heat insulation material; and a securing device coupling the primary insulating wall to the secondary insulating wall, the securing device comprising: a base socket having a lower circumference protruding in a stepped shape; and a bolt coupled to the base socket, wherein the base socket has a lower surface mounted on a groove formed on an upper surface of the auxiliary heat insulating material, and a lower circumference of the base socket supports a lower surface of the auxiliary upper shield plate.
The base socket may include a socket body constituting a body of the base socket and a socket flange protruding from the socket body in a stepped shape, an upper surface of the socket flange is flush with an upper surface of the auxiliary heat insulating material, and the auxiliary upper shield may be provided to be disposed on the upper surfaces of the auxiliary heat insulating material and the socket flange.
The upper surface of the socket body may be flush with the upper surface of the auxiliary upper shield plate.
The auxiliary insulating material may be formed of polyurethane foam (PUF) and the auxiliary upper protection plate may be formed of plywood.
The base receptacle may be bonded to the secondary insulating material.
The fixture may further comprise: an auxiliary sealing wall interposed between the main heat insulating wall and the auxiliary heat insulating wall; and a blade protruding from a body (body) of the bolt such that a lower surface of the blade is mounted on an upper surface of the socket body, wherein an abutment region between the auxiliary sealing wall and the blade is provided on the upper surface of the socket body.
The auxiliary sealing wall may be welded to the vane in the adjoining region therebetween.
According to another aspect of the present invention, there is provided a heat insulating wall fixing device for fastening a main heat insulating wall to an auxiliary heat insulating wall in an LNG storage tank, the fixing device comprising: and a base socket mounted on a groove formed on an upper surface of the auxiliary heat insulating material of the auxiliary heat insulating wall, wherein a lower end of the base socket protrudes in a stepped shape such that a stepped portion of the base socket supports a lower surface of the upper shield plate of the auxiliary heat insulating wall.
The uppermost surface of the base socket may be flush with the upper surface of the upper shield plate, the stepped surface of the stepped portion protruding from the base socket may be flush with the upper surface of the auxiliary heat insulating material, and the base socket may be formed with fastening holes through which bolts are coupled to the main heat insulating wall.
The bolts may include blades protruding therefrom to be coupled to an auxiliary sealing wall disposed between the main heat insulating wall and the auxiliary heat insulating wall, and the auxiliary sealing wall may be welded to the blades on the uppermost surface of the base receptacle.
Advantageous effects
In the insulation wall fixing device of an LNG storage tank according to the present invention, the upper surface of the socket flange supports the upper shield plate of the auxiliary insulation wall, whereby the upper shield plate can withstand a load applied thereto while maintaining strength thereof, and a cutting area of the upper shield plate can be minimized, whereby the fixing device can have higher strength than a typical insulation wall fixing device.
In addition, according to the present invention, the welding of the auxiliary sealing wall is performed to the upper surface of the base socket, thereby preventing burn damage of the auxiliary upper shield plate due to welding heat.
Furthermore, the insulating wall fixing device according to the present invention can improve productivity by reducing labor on a ship (on board).
Drawings
Fig. 1 is a schematic view of a typical insulated wall fixture for an LNG storage tank.
Fig. 2 is a schematic view of an insulation structure of an LNG tank according to the present invention.
Fig. 3 is a view of an auxiliary insulation panel of an LNG tank according to the present invention.
Fig. 4 is a view of a main insulation panel of an LNG tank according to the present invention.
Fig. 5 is a schematic view of a heat insulation wall fixing device of an LNG tank according to the present invention.
Detailed Description
The above and other aspects, features and advantages of the present invention will become apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings.
Hereinafter, embodiments of the present invention will be described in detail. Throughout the specification, like components will be denoted by like reference numerals.
Herein, the terms "primary" and "secondary" are used to distinguish components that provide primary sealing or insulation to an LNG storage tank from components that provide secondary sealing or insulation to an LNG storage tank.
In addition, as used herein to describe the components of the canister, the term "upper" or "above … …" refers to the inward direction of the canister irrespective of the direction of gravity, and the term "lower" or "below … …" refers to the outward direction of the canister irrespective of the direction of gravity.
Fig. 2 is a schematic view of an insulation structure of an LNG tank according to the present invention, fig. 3 is a view of an auxiliary insulation panel of the LNG tank according to the present invention, and fig. 4 is a view of a main insulation panel of the LNG tank according to the present invention.
Referring to fig. 2 to 4, the LNG storage tank according to the present invention has a structure in which an auxiliary heat insulation wall 200 and a main heat insulation wall 100 are sequentially stacked on an inner wall of a hull, the auxiliary heat insulation wall 200 being composed of a plurality of auxiliary heat insulation panels 210, the main heat insulation wall 100 being composed of a plurality of main heat insulation panels 110.
The auxiliary sealing wall 400 may be interposed between the auxiliary heat insulating wall 200 and the main heat insulating wall 100, and a main sealing wall (not shown) may be disposed on an upper side of the main heat insulating wall 100. For ease of description, the primary seal wall is not shown.
The main and auxiliary heat insulation panels 110 and 210 may be manufactured as unit panels each having a hexahedral shape, having a width to length ratio of about 1:3, preferably manufactured as unit panels (sandwich panels) having a size of about 1 meter by 3 meters, but are not limited thereto.
The main insulation panel 110 may be a sandwich panel in which a plywood sheet 112, a plywood sheet 113 is bonded to an upper surface or a lower surface of an insulation material 111 formed of polyurethane foam (PUF), or to both the upper surface and the lower surface of the insulation material 111.
Likewise, the auxiliary insulation panel 210 may be a sandwich panel in which plywood sheets, 212 plywood sheets 213 are bonded to the upper surface or the lower surface of the insulation material 211 formed of polyurethane foam (Rigid Polyurethane Foam, RPUF), or to both the upper and lower surfaces of the insulation material 111.
Preferably, the main and auxiliary heat insulation panels 110 and 210 constituting the main and auxiliary heat insulation walls 100 and 200 are formed of a rigid polyurethane foam (RPUF) having a higher strength than a general polyurethane foam so as to form an auxiliary sealing wall 400 having a flat invar film, as described below.
The auxiliary heat insulation panel 210 may be fastened to the inner wall of the hull by cement (e.g., mastic) or bolts, and the auxiliary heat insulation panel 210 may be closely coupled to the upper side of the auxiliary sealing wall 400 by a fixing device 300 provided on the upper side thereof, with the auxiliary sealing wall 400 interposed between the main heat insulation panel 110 and the auxiliary heat insulation panel 210.
The main sealing wall (not shown) directly contacts LNG to seal LNG, and may be composed of a plurality of stainless steel (SUS) films having wrinkles formed toward the inside of the tank to absorb shrinkage due to an extremely low temperature inside the tank.
The main sealing wall (not shown) may be composed of a plurality of unit films, and may be sealed by welding the plurality of unit films to an anchor strip (anchor strip) on the main insulation panel 110 so as not to generate a gap therebetween.
The auxiliary sealing wall 400 may be constructed of Invar (Invar) film.
The auxiliary sealing wall 400 may be composed of a plurality of invar strake (invar strake) plates, and may be sealed by welding the plurality of invar strake plates to a tongue-like (tangue) member on the auxiliary insulation panel 210 so as not to create a gap therebetween. The invar strakes are strip-shaped metal plates with a narrow width.
In the LNG tank according to the present invention, each of the main and auxiliary heat insulation walls 100 and 200 is implemented in the form of a heat insulation panel (panel type) in which a plywood sheet is bonded to the upper and/or lower surface of polyurethane foam and the auxiliary sealing wall 400 is composed of a flat invar film (flat invar membrane).
In general, flat invar films are not suitable for panel-type insulation systems in which the insulation panels are formed of polyurethane foam because of their low coefficient of thermal contraction. To allow the application of a flat invar film to a panel-type insulation system, the insulation walls supporting the film need to be constructed of an insulation box exhibiting low thermal shrinkage and having high rigidity, as in a typical NO 96-type tank.
However, the LNG tank according to the present invention has a structure for reinforcing the auxiliary heat insulation wall 200, whereby the auxiliary heat insulation wall 200 may be constructed of a heat insulation panel formed of polyurethane foam, and the auxiliary sealing wall 400 may be constructed of a flat invar film.
According to the present invention, in order to reinforce the auxiliary heat insulation wall 200, corner portions of the storage tank are provided with transverse connectors (transverse connector) (not shown) supporting both ends of the auxiliary sealing wall 400.
The transverse connectors are lattice structures provided along the edges of each of the front and rear walls of the tank. The lateral connector is welded at one end thereof to an anchor bar provided to an inner wall of the hull to be fastened to a corner of the tank while supporting both ends of each of the main sealing wall and the auxiliary sealing wall 400 at the other end thereof so that the load can be transferred to the hull when the load is applied to the lateral connector.
The transverse connectors are preferably formed of invar material having high rigidity, and a heat insulating box having high rigidity may be provided inside the transverse connectors and between the transverse connectors and the hull to support the transverse connectors. The insulated box may be prepared by filling a plywood box with perlite powder.
According to the present invention, since the transverse connectors transfer a portion of the load applied to the sealing wall to the hull, the auxiliary heat insulation wall 200 supporting the auxiliary sealing wall 400 composed of a flat invar film may be composed of a heat insulation panel having lower rigidity than the heat insulation box.
As a result, according to the present invention, a welding line (welding line) can be linearly formed when the auxiliary sealing wall 400 is installed on the auxiliary heat insulation wall 200, so that productivity can be improved by automation of welding.
Further, according to the present invention, each of the main heat insulation wall 100 and the auxiliary heat insulation wall 200 is constructed of a heat insulation panel formed of polyurethane foam, thereby improving heat insulation performance. Compared to a typical NO 96-type storage tank in which the heat insulating wall is provided in the form of a heat insulating box, the LNG storage tank according to the present invention can reduce the thickness of the main heat insulating wall to about 40% or more and the thickness of the auxiliary heat insulating wall to about 20% or more, while securing the same heat insulating effect as a typical NO 96-type storage tank.
The LNG storage tank according to the present invention has a structure in which the auxiliary insulation panel 210 intersects with the main insulation panel 110 provided on the auxiliary insulation panel 210.
Referring to fig. 2, the main insulation panels 110 may be disposed to intersect the auxiliary insulation panels 210 such that corners of each of the main insulation panels 110 are placed at the center of each of the auxiliary insulation panels 210, whereby each of the main insulation panels 110 is disposed across the upper surfaces of the four auxiliary insulation panels 210.
To achieve the intersection between the primary and secondary insulation panels 110, 210, a fixture 300 adapted to secure the primary insulation panel 110 to the secondary insulation panel 210 may be disposed inside an edge on the upper surface of the secondary insulation panel 210, such as at the center of each of the upper surfaces of the secondary insulation panels 210.
Referring to fig. 3, one fixture 300 may be disposed at the center of the auxiliary insulation panel 210, and other fixtures 300 may be disposed to be separated from the fixture 300 at the center of the auxiliary insulation panel 210 by the same distance in the longitudinal direction.
The fixing device 300 is disposed on a center line C on the auxiliary insulation panel 210 in the width direction to minimize displacement of the auxiliary insulation panel 210 in the width direction due to stress applied to the auxiliary insulation panel 210, and the slit 214 may be formed at a position separated from the fixing device 300 by the same distance in the front-rear direction to minimize displacement of the fixing device 300 in the longitudinal direction.
Further, each of the main insulation panels 110 may be provided with a fixing portion S for coupling to the fixing device 300 at vertical edges on lateral sides of the main insulation panel 110 including four corners of the main insulation panel 110. The fixing portions S may be arranged at constant intervals in the longitudinal direction of the main insulation panel 110.
Each of the fixing portions S may be provided as a groove having a semicircular or fan-shaped cross section, and may be compressed by a bolt fastening a nut to the fixing device, wherein the bolt of the fixing device 300 is inserted into the fixing portion S so as to pass therethrough, whereby the main insulation panel 110 may be brought into close contact with the auxiliary insulation panel 210. This structure will be described in more detail below.
In this embodiment, three fixing devices 300 are provided on the auxiliary insulation panel 210, and eight fixing portions S are provided at the vertical edges of the main insulation panel 110.
According to this embodiment, the fixing portions S formed on the four main insulation panels 110 may be coupled together to the fixing device 300 provided at the center of the auxiliary insulation panel 210, and the fixing portions S formed on the two main insulation panels 110 may be coupled together to the fixing device 300 separated from the center of each of the auxiliary insulation panels 210.
Thus, according to this embodiment, the fixing devices 300 interposed therebetween may be shared by adjacent main insulation panels 110, and eight points for supporting the main insulation panels 110 may be ensured by only three fixing devices 300 provided to one auxiliary insulation panel 210.
That is, according to the present invention, the fixing portion S for coupling to the fixing device 300 is provided at the corner of the main insulation panel 110, whereby points for supporting the main insulation panel 110 can be fixed as much as possible even with a small number of fixing devices 300, thereby improving the stability of the supporting structure and the productivity of the insulation panel.
Reference numeral "215" indicates an insertion groove 215 formed to receive a tongue member to which an invar strake constituting the auxiliary sealing wall 400 is welded, and reference numeral "115" indicates an insertion groove 115 formed to receive a tongue member received in the insertion groove 215, and an edge of the invar strake is welded to the tongue member.
Reference numeral "114" indicates a plurality of slits 114 formed on the main insulation panel 110 to distribute stress concentration caused by heat shrinkage, and reference numeral "116" indicates an anchor tape 116 provided for welding the main seal wall.
Fig. 5 is a schematic view of a heat insulation wall fixing device of an LNG tank according to the present invention. Hereinafter, the structure of the heat insulation wall fixing device 300 of the LNG tank according to the present invention will be described.
As shown in fig. 5, the main insulation wall 100 includes a main insulation material 111 and a main lower shielding plate 113, and the auxiliary insulation wall 200 includes an auxiliary insulation material 211 and an auxiliary upper shielding plate 212. As described above, both the main insulation material 111 and the auxiliary insulation material 211 may be formed of polyurethane foam (PUF), and both the main lower protection plate 113 and the auxiliary upper protection plate 212 may be formed of plywood sheets.
The auxiliary upper protection plate 212 of the auxiliary heat insulation wall 200 may be formed with a hole corresponding to the socket body 311 described below, and the main heat insulation wall 100 may be formed with a fixing portion S for coupling to the fixing device 300. The fixing portion S provides a space for receiving an upper portion of the fixing device 300.
Referring to fig. 5, the insulating wall fixing device 300 of the LNG storage tank according to the present invention includes a base socket 310, a bolt 320, and a locking nut 330, the base socket 310 being provided on the auxiliary insulating wall 200, the bolt 320 being screwed to the base socket 310 and having an upper end inserted into a fixing portion S formed on the main insulating wall 100, the locking nut 330 being coupled to the bolt 320 inserted into the fixing portion S.
The base socket 310 includes a socket body 311 and a socket flange 312, the socket body 311 constituting a body of the base socket 310, the socket flange 312 protruding from a lower circumference of the socket body 311 to be inserted into a space between a groove formed on an upper surface of the auxiliary heat insulating material 211 and the auxiliary upper shield plate 212.
The base socket 310 may be mounted on the groove formed on the upper surface of the auxiliary insulating material 211 by engaging the lower surface of the base socket 310 to the upper surface of the groove.
The upper surface of the socket body 311 may be flush with the upper surface of the auxiliary upper shield plate 212, and the upper surface of the socket flange 312 may be flush with the upper surface of the auxiliary insulation material 211. That is, as shown in the drawings, the base receptacle 310 may have a cross section that is stepped by the receptacle body 311 and the receptacle flange 312.
The socket flange 312 is inserted into a space between the groove formed on the upper surface of the auxiliary insulating material 211 and the auxiliary upper shield plate 212 such that the upper surface of the socket flange 312 supports the end of the auxiliary upper shield plate 212.
According to the present invention, the socket flange 312 allows the auxiliary upper shield plate 212 to bear the load applied from the fixture 300 by supporting the auxiliary upper shield plate 212, and the auxiliary upper shield plate 212 is not cut in the thickness direction, and thus can bear the load while maintaining the strength thereof.
Accordingly, the heat insulation wall fixing device according to the present invention can secure higher fastening strength than a typical fastening mechanism (see fig. 1), and can promote strength reinforcement by adjusting the size or thickness of the base socket 310, the thickness of the auxiliary upper shield plate 212, etc., as needed.
The base socket 310 may be formed of stainless steel (SUS).
The base receptacle 310 may be fastened to the upper side of the auxiliary insulation wall 200 by: placing the base receptacle 310 on a recess formed on the upper surface of the auxiliary insulating material 211; next, the base receptacle 310 is coupled to the auxiliary upper shield plate 212 such that the auxiliary upper shield plate 212 is placed on the upper surface of the auxiliary insulating material 211 and the upper surface of the receptacle flange 312.
That is, the heat insulation wall fixing device 300 according to the present invention may be stored together with the base socket 310 provided on the auxiliary heat insulation wall 200, thereby improving productivity by omitting the riveting and joining operations in the on-board operation.
According to the present invention, the bolt (color bolt) 320 may be a ring stud and may include a blade 321 protruding from a body of the bolt 320 and mounted on an upper surface of the socket body 311.
The blade 321 extends from the body of the bolt 320 to be inclined downward therefrom such that the distal end of the blade 321 is placed on the upper surface of the socket body 311.
Here, the auxiliary sealing wall 400 may be coupled to the distal end of the blade 321 by welding. That is, as shown in the drawings, the auxiliary sealing wall 400 may be welded to the distal end of the vane 321 to be placed between the auxiliary heat insulating wall 200 and the main heat insulating wall 100.
According to the present invention, a contact region between the auxiliary sealing wall 400 and the blade 321 is formed on the upper surface of the socket body 311, and the auxiliary sealing wall 400 is welded to the blade 321 in the contact region therebetween.
Therefore, according to the present invention, welding of the auxiliary sealing wall 400 is performed to the upper surface of the socket body 311, thereby preventing burn damage on the auxiliary upper protection plate 212 of the auxiliary heat insulation wall 200.
In addition, in the structure in which the bolts 320 are provided in the form of the ring stud including the blades 321 as described above, the blades 321 are welded to the auxiliary sealing wall 400 to ensure the water impermeability between the base socket 310 and the bolts 320, whereby the bolt fastening holes h of the base socket 310 may be formed in the form of through holes or blind holes.
If the bolt 320 is a typical bolt, water tightness cannot be ensured in a gap for fastening between the base socket 310 and the bolt 320. In this case, the bolt fastening hole h of the base socket 310 is preferably formed in a blind hole shape.
The insulating wall fixing device 300 of the LNG storage tank according to the present invention may further include a flat washer 340, the flat washer 340 being inserted into the bolt 320 through an upper portion of the bolt 320 and being supported by the main lower shielding plate 113 in the region of the fixing portion S; and a spring washer 350 disposed on an upper surface of the flat washer 340 and supporting the locking nut 330.
Although some embodiments have been described herein, it is to be understood that these embodiments are provided for illustrative purposes only and are not to be construed as limiting the invention in any way, and that various modifications, changes, alterations, and equivalent embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention. The scope of the invention should, therefore, be defined by the following claims and their equivalents.

Claims (8)

1. A heat insulating wall fixture for a liquefied natural gas storage tank, comprising:
the main heat insulation wall is mainly used for insulating the liquefied natural gas;
an auxiliary heat insulation wall which is arranged below the main heat insulation wall and secondarily insulates the liquefied natural gas, wherein the auxiliary heat insulation wall comprises an auxiliary heat insulation material and an auxiliary upper protection plate arranged on the auxiliary heat insulation material; and
a fixture coupling the primary insulating wall to the secondary insulating wall, the fixture comprising:
a base socket having a lower circumference protruding in a stepped shape such that the base socket has a lower surface mounted on a groove formed on an upper surface of the auxiliary heat insulating material, and the lower circumference of the base socket supports a lower surface of the auxiliary upper shield; and
a bolt coupled to the base receptacle,
wherein the base receptacle includes a receptacle body constituting a body of the base receptacle and a receptacle flange protruding from the receptacle body in the stepped shape,
the upper surface of the socket flange is flush with the upper surface of the auxiliary heat insulating material, and
the auxiliary upper shield is disposed across an upper surface of the auxiliary insulating material and an upper surface of the socket flange.
2. The insulation wall fixing device for an lng storage tank according to claim 1, wherein an upper surface of the socket body is flush with an upper surface of the auxiliary upper shield.
3. The insulation wall fixing device for an lng storage tank according to claim 2, wherein the auxiliary insulation material is formed of polyurethane foam and the auxiliary upper protection panel is formed of plywood.
4. The insulated wall securement device for a liquefied natural gas storage tank as claimed in claim 3, wherein the base socket is coupled to the auxiliary insulation material by engagement.
5. The insulated wall securement device for a lng storage tank of claim 2, further comprising:
an auxiliary sealing wall interposed between the main heat insulating wall and the auxiliary heat insulating wall; and
a blade protruding from the body of the bolt such that a lower surface of the blade is mounted on an upper surface of the socket body,
wherein an abutment region between the auxiliary sealing wall and the blade is provided on an upper surface of the socket main body.
6. The insulated wall securement device for a liquefied natural gas storage tank as claimed in claim 5, wherein said secondary sealing wall is welded to said vanes in said adjoining region therebetween.
7. A heat shield wall securement device for securing a primary heat shield wall to a secondary heat shield wall in a liquefied natural gas storage tank, comprising:
a base socket mounted on a groove formed on an upper surface of an auxiliary heat insulating material of the auxiliary heat insulating wall, the base socket having a lower circumference protruding in a stepped shape such that a stepped portion of the base socket supports a lower surface of an upper shield plate of the auxiliary heat insulating wall,
wherein an uppermost surface of the base receptacle is flush with an upper surface of the upper shield plate,
the stepped surface of the stepped portion protruding from the base socket is flush with the upper surface of the auxiliary heat insulating material, and
the base receptacle is formed with fastening holes through which bolts are coupled to the main heat insulation wall.
8. The insulating wall fixture of claim 7, wherein the bolt includes a blade protruding therefrom to couple to a secondary sealing wall disposed between the primary insulating wall and the secondary insulating wall, and the secondary sealing wall is welded to the blade on an uppermost surface of the base receptacle.
CN201980092466.XA 2018-12-20 2019-12-18 Heat insulation wall fixing device for liquefied natural gas storage tank Active CN113474248B (en)

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KR1020180166239A KR102158648B1 (en) 2018-12-20 2018-12-20 Insulation wall securing device for lng storage tank
KR10-2018-0166239 2018-12-20
PCT/KR2019/018049 WO2020130650A1 (en) 2018-12-20 2019-12-18 Insulation wall fixing device for liquefied natural gas storage tank

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102351144B1 (en) * 2020-12-18 2022-01-12 케이씨엘엔지테크 주식회사 A liquefied gas cargo tank including anchor structure and the construction method thereof
CN117068325B (en) * 2023-10-13 2024-02-09 沪东中华造船(集团)有限公司 Self-adaptive adjustment method for cold deformation of insulating module of thin-film enclosure system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1898124A (en) * 2004-12-08 2007-01-17 韩国Gas公社 Lng storage tank and constructing method thereof
CN103153776A (en) * 2010-07-30 2013-06-12 三星重工业株式会社 Cargo hold of a vessel for transporting liquefied gas
CN103748401A (en) * 2011-08-01 2014-04-23 气体运输技术公司 Sealed, thermally-insulating vessel
CN103998334A (en) * 2011-12-16 2014-08-20 三星重工业株式会社 Auxiliary secondary barrier, liquefied natural gas storage tank including same and method for manufacturing the liquefied natural gas storage tank
KR20150041937A (en) * 2013-10-10 2015-04-20 삼성중공업 주식회사 Cargo barrier structure
CN106660617A (en) * 2014-07-04 2017-05-10 大宇造船海洋株式会社 Liquefied natural gas storage tank and insulating wall securing device for liquefied natural gas storage tank
KR20170071623A (en) * 2015-12-15 2017-06-26 주식회사 경동원 Cross stacked insulation panel installation structure of independent type liquefied gas storage tank
KR20170122334A (en) * 2016-04-26 2017-11-06 삼성중공업 주식회사 Anchor apparatus for cargo barrier structure
CN108603634A (en) * 2015-10-13 2018-09-28 气体运输技术公司 Heat-insulating and sealing tank

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4170952A (en) * 1976-03-09 1979-10-16 Mcdonnell Douglas Corporation Cryogenic insulation system
FR2977575B1 (en) * 2011-07-06 2014-06-27 Gaztransp Et Technigaz COUPLER FOR MAINTAINING AN ELEMENT IN RELATION TO A RETENTION STRUCTURE
KR101399843B1 (en) * 2012-09-27 2014-05-30 삼성중공업 주식회사 Lng cargo insulation system
KR101412486B1 (en) * 2012-11-02 2014-07-01 삼성중공업 주식회사 Cargo for liquefied gas carrier ship
KR101784833B1 (en) * 2015-10-06 2017-11-06 삼성중공업 주식회사 Cargo for liquefied gas and fixing unit for paner used therein

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1898124A (en) * 2004-12-08 2007-01-17 韩国Gas公社 Lng storage tank and constructing method thereof
CN103153776A (en) * 2010-07-30 2013-06-12 三星重工业株式会社 Cargo hold of a vessel for transporting liquefied gas
CN103748401A (en) * 2011-08-01 2014-04-23 气体运输技术公司 Sealed, thermally-insulating vessel
CN103998334A (en) * 2011-12-16 2014-08-20 三星重工业株式会社 Auxiliary secondary barrier, liquefied natural gas storage tank including same and method for manufacturing the liquefied natural gas storage tank
KR20150041937A (en) * 2013-10-10 2015-04-20 삼성중공업 주식회사 Cargo barrier structure
CN106660617A (en) * 2014-07-04 2017-05-10 大宇造船海洋株式会社 Liquefied natural gas storage tank and insulating wall securing device for liquefied natural gas storage tank
CN108603634A (en) * 2015-10-13 2018-09-28 气体运输技术公司 Heat-insulating and sealing tank
KR20170071623A (en) * 2015-12-15 2017-06-26 주식회사 경동원 Cross stacked insulation panel installation structure of independent type liquefied gas storage tank
KR20170122334A (en) * 2016-04-26 2017-11-06 삼성중공업 주식회사 Anchor apparatus for cargo barrier structure

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CN113474248A (en) 2021-10-01
KR102158648B1 (en) 2020-09-23
WO2020130650A1 (en) 2020-06-25
KR20200077660A (en) 2020-07-01
EP3901026A4 (en) 2022-08-31

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