WO2022025534A1 - 액화가스 저장탱크 및 이를 포함하는 선박 - Google Patents
액화가스 저장탱크 및 이를 포함하는 선박 Download PDFInfo
- Publication number
- WO2022025534A1 WO2022025534A1 PCT/KR2021/009553 KR2021009553W WO2022025534A1 WO 2022025534 A1 WO2022025534 A1 WO 2022025534A1 KR 2021009553 W KR2021009553 W KR 2021009553W WO 2022025534 A1 WO2022025534 A1 WO 2022025534A1
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- Prior art keywords
- corner
- primary
- barrier
- flat
- block
- Prior art date
Links
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Images
Classifications
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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
- F17C3/025—Bulk storage in barges or on ships
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/001—Thermal insulation specially adapted for cryogenic vessels
-
- 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
-
- 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
- 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
- F17C2203/0358—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
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/035—Propane butane, e.g. LPG, GPL
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/033—Small pressure, e.g. for liquefied gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- 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
-
- 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 a liquefied gas storage tank and a ship including the same.
- liquefied gas such as liquefied natural gas (LNG) and liquefied petroleum gas (LPG) is widely used to replace gasoline or diesel.
- LNG liquefied natural gas
- LPG liquefied petroleum gas
- a storage tank (referred to as a “cargo hold”) is installed to store LNG in a cryogenic liquid state, and the application of LNG fuel tanks to very large container ships and various cargo ships is becoming a reality in accordance with IMO environmental regulations.
- the liquefied gas storage tank may generate boil-off gas (BOG) due to intrusion of heat from the outside, and the natural vaporization rate (BOR), which is the vaporization rate of the boil-off gas through an adiabatic design, is Lowering the liquefied gas is a key technology in the design of the liquefied gas storage tank.
- BOG boil-off gas
- BOR natural vaporization rate
- the liquefied gas storage tank since the liquefied gas storage tank is exposed to various loads such as sloshing, it may be essential to secure the mechanical strength of the insulation panel.
- the present invention has been created to solve the problems of the prior art as described above, and an object of the present invention is to improve the structure of a corner block to reduce the low temperature burden, sloshing burden and stress burden of the corner secondary barrier. It is to provide a liquefied gas storage tank and a ship including the same.
- the liquefied gas storage tank according to an aspect of the present invention is disposed on a flat portion on a first surface or a second surface at different angles forming a storage space for accommodating liquefied gas, and fixes a flat primary barrier made of a metal material. and a flat primary heat insulating wall disposed outside the flat primary barrier, a flat secondary barrier provided outside the flat primary insulating wall, and a flat secondary insulating wall disposed outside the flat secondary barrier.
- corner primary heat insulating wall disposed at a corner where the first face and the second face meet, fixing a corner primary barrier made of a metal material, and disposed outside the corner primary barrier, and the corner primary insulating wall and a corner block including a corner secondary barrier provided on the outside and a corner secondary thermal insulation wall disposed outside the corner secondary barrier, wherein the corner primary thermal insulation wall is an outer 1 fixed to the corner secondary barrier
- the corner primary insulation wall is provided on the inner side of the first surface and the second surface, respectively, and the inner first plywood composed of the outer primary plywood, the corner primary insulation material and the inner primary plywood 1 fixing part and an inner second fixing part; and an inner bent portion configured to be filled with an insulating material between the inner first fixing portion and the inner second fixing portion.
- the corner primary insulating material may be a high-density polyurethane foam
- the insulating material of the inner bent portion may be a low-density polyurethane foam
- the corner primary barrier is fixed to the inner primary plywood of the inner first fixing part and the inner primary plywood of the inner second fixing part and is bent on the inner surface of the insulating material of the inner bending part It can be arranged so that
- the corner secondary insulation wall is fixed to the inner side of the first surface and the second surface, respectively, and the inner secondary plywood, the corner secondary insulation material, the outer 2 are sequentially arranged outside the corner secondary barrier It includes an outer first fixing portion and an outer second fixing portion composed of a car plywood, wherein the outer first fixing portion fixed to the first surface and the outer second fixing portion fixed to the second surface face each other
- the side surface may be provided to be inclined in a direction to divide the corner portion.
- the thickness of the corner primary thermal insulation wall of the corner block connected to the flat primary thermal insulation wall of the flat block and the corner secondary thermal insulation wall of the corner block connected to the flat secondary thermal insulation wall of the flat block is , may be the same or similar.
- a liquefied gas storage tank is a liquefied gas storage tank including a corner block disposed at a corner where the first and second surfaces of different angles meet to form a storage space for accommodating the liquefied gas
- the corner block is provided on the inner side of the first and second surfaces, a lower block made of a single board, a plurality of upper blocks disposed adjacently on the lower block and bonded by bonding, and the lower portion disposed adjacent to each other It consists of an upper connection block that is bonded to the upper surface of the block to connect the lower blocks, and the upper block (or the upper connection block) is bent at a predetermined angle inside the first and second surfaces and is provided.
- the outer primary plywood (or the corner second connection plywood) is made of an outer primary plywood (or corner second connection plywood) disposed on the outside and bonded to the lower block, and has a plurality of first holes (or the corner second connection plywood) wood) to the outer surface of the corner primary insulation material (or the corner connection insulation material) having a plurality of second holes, and the inner primary plywood having a plurality of third holes (or the corner first connection material) plywood) is bonded to the inner surface of the corner primary insulation material (or the corner connection insulation material), and the outer primary plywood (or the corner second connection plywood), the corner primary insulation material (or the corner In a state in which the inner primary plywood (or corner first connecting ply) disposed on the outside of the barrier fixing member Wood), the corner primary insulation (or corner connection insulation) disposed on the outside of the inner primary plywood (or the corner first connection plywood), and the corner primary insulation material (or the corner connection insulation material)
- the outer primary plywood (or the corner second connection plywood) is made of an outer primary plywood (or corner second connection plywood) disposed
- the barrier fixing member may be bolted to the inner primary plywood (or the corner first connecting plywood).
- a separate insulating material filling may be omitted or constructed.
- a separate insulating material filling may be omitted or constructed.
- a liquefied gas storage tank and a ship having the same according to the present invention by improving the structure of the corner block, it is possible to reduce the low temperature burden, the sloshing burden and the stress burden of the corner secondary barrier.
- the inner first and second fixing parts for holding the barrier fixing member to which the corner primary barrier is fixed in the corner block are not composed of only plywood, but polyurethane
- the liquefied gas storage tank according to the present invention and a ship having the same the corner 1st insulating wall of the corner block connected to the flat primary insulating wall of the flat block and the corner 2 of the corner block connected to the flat secondary insulating wall of the flat block
- the thickness of the insulating wall is relatively thick compared to the existing one (however, the thickness of the corner secondary insulating wall is the thickness that can maintain the mechanical strength at a certain level)
- Corner 2 It is possible to reduce the low temperature burden and sloshing burden on the car barrier, prevent damage to the corner secondary barrier, and reduce the low temperature load on the corner secondary barrier to prevent brittle fracture of the hull.
- the corner primary insulating wall is configured to be relatively thick compared to the existing one, thereby increasing the length of the portion where the corner secondary barrier is not attached to the corner secondary insulating wall
- the damage probability of the corner secondary barrier including the corner connecting barrier can be further reduced, and the corner secondary barrier can easily absorb hull deformation, and low temperature The stress can also be further reduced.
- the liquefied gas storage tank and the ship having the same according to the present invention are spaced apart by a predetermined interval between the inner first fixing part and the inner second fixing part respectively provided on the inside of the first surface and the second surface at different angles. and, by providing an inner intermediate fixing part between the inner first and second fixing parts, it is possible to alleviate the bending angle of the corner primary barrier by the inner intermediate fixing part, thereby reducing the sloshing burden in the corner primary barrier In addition, it is possible to increase the mechanical strength of the corner part.
- the liquefied gas storage tank and the ship having the same form a chamfer at the corner where the outer first fixing part and the outer second fixing part respectively fixed to the first and second surfaces at different angles face each other.
- the chamfer by filling the chamfer with low-density polyurethane foam, it is possible to further increase the thermal insulation performance in the corner part by the low-density polyurethane foam.
- the liquefied gas storage tank and the ship provided with the same form a step at the corner facing the first and second outer fixing parts fixed to the first and second surfaces at different angles, respectively And, by filling the step portion with glass wool, the flexibility of the corner secondary barrier including the corner connecting barrier formed on the glass wool is improved, thereby further preventing damage to the corner secondary barrier.
- the liquefied gas storage tank and the ship having the same according to the present invention are spaced apart from each other by a predetermined interval between the first and second external fixing parts fixed to the first and second surfaces at different angles, respectively,
- the existing 1 by the gap formed between the outer first fixing part and the outer intermediate fixing part and between the outer second fixing part and the outer intermediate fixing part. It is possible to prevent damage to the corner secondary barrier fixed to the outer fixing part by relieving contraction or expansion stress due to the temperature of the outer fixing part compared to the gap of the dog.
- the liquefied gas storage tank and the ship having the same form a chamfer at the corner where the outer first fixing part and the outer second fixing part respectively fixed to the first and second surfaces at different angles face each other.
- the corner secondary barrier is protruded and bent to the outside, and the length of the non-adhesive part to the corner secondary insulating wall increases.
- the damage probability of the corner secondary barrier including the corner connecting barrier can be further reduced, and the corner secondary barrier can easily absorb hull deformation and further reduce low temperature stress can be
- a corner primary insulating wall including an inner primary plywood forming a step with the corner primary insulating material is arranged in plurality on the corner secondary insulating wall,
- the liquefied gas storage tank and the ship having the same according to the present invention do not include a reinforcement member such as a stiffener on the rear surface of the barrier fixing member, so that the weight of the barrier fixing member itself can be reduced, and the reinforcement member is attached
- a reinforcement member such as a stiffener on the rear surface of the barrier fixing member, so that the weight of the barrier fixing member itself can be reduced, and the reinforcement member is attached
- it does not perform welding for this purpose, it is possible to reduce the number of welding man-hours and increase the precision during manufacturing, and by distributing the stress generated in the part bent at a right or obtuse angle uniformly, it is bent compared to general barrier fixing members equipped with conventional stiffeners. It is possible to increase the stability of the system by reducing the frequency of occurrence of damage and minimizing repair.
- the liquefied gas storage tank according to the present invention and a ship having the same have a chamfer or groove shape as a squeeze-out confirmation means in each of the outer primary plywood and the corner second connection plywood, which are the lower layers of the upper block and the upper connection block, respectively.
- the liquefied gas storage tank and the ship having the same according to the present invention the first step space generated between the inner primary plywood of the neighboring upper block, as well as the corner of the inner primary plywood and the upper connection block of the upper block
- the stuffing piece to be inserted into the second stepped space created between the first connecting plywood, it is possible to keep the gap distance between the neighboring upper blocks and the gap distance between the upper block and the upper connecting block constant, as well as , it is possible to fix the inner bent portion of the upper block and the corner connecting bent portion of the upper connection block, so that handling can be facilitated when working with the upper block.
- the liquefied gas storage tank according to the present invention and a ship having the same install the bonding prevention member on each exposed surface of the corner connection bending part and the corner connection insulation material that are non-bonding areas in the upper connection block, or the ratio of the upper connection block
- the adhesive prevents the adhesive from escaping to the exposed surfaces of the corner connecting bends and corner connecting insulating materials that are non-bonding areas during bonding of the upper connecting blocks, or even if they come out, the corner connecting bends and corner connecting barriers or corner connecting insulating materials It is possible to prevent bonding of the corner primary insulating material of the upper block adjacent to the .
- the liquefied gas storage tank and the ship having the same having the same according to the present invention, after installing a corner block in a corner portion and a flat block in a flat portion, the corner block and the flat block by the tolerance of the tank hull
- a spray method of an insulating material using a spray device it is possible to facilitate the operation of filling the gap of which the size is not constant.
- FIG. 1 is a partial cross-sectional view of a flat portion for explaining a liquefied gas storage tank according to a first embodiment of the present invention.
- FIG. 2 is a cross-sectional view of a corner for explaining a liquefied gas storage tank according to the first embodiment of the present invention.
- FIG 3 is a view showing the structural analysis results for the corner portion of the liquefied gas storage tank according to the first embodiment of the present invention.
- FIG. 4 is a view showing another structural analysis result of the corner portion of the liquefied gas storage tank according to the first embodiment of the present invention.
- FIG. 5 is a cross-sectional view of a corner for explaining a liquefied gas storage tank according to a second embodiment of the present invention.
- FIG. 6 is a view showing the structural analysis results of the corner portion of the liquefied gas storage tank according to the second embodiment of the present invention.
- FIG. 7 is a cross-sectional view of a corner for explaining a liquefied gas storage tank according to a third embodiment of the present invention.
- FIG. 8 is a view showing the structural analysis results of the corner portion of the liquefied gas storage tank according to the third embodiment of the present invention.
- FIG. 9 is a cross-sectional view of a corner for explaining a liquefied gas storage tank according to a fourth embodiment of the present invention.
- FIG. 10 is a view showing the structural analysis results for the corner portion of the liquefied gas storage tank according to the fourth embodiment of the present invention.
- FIG. 11 is a cross-sectional view of a corner for explaining a liquefied gas storage tank according to a fifth embodiment of the present invention.
- FIG. 12 is a view showing a structural analysis result of a corner portion of a liquefied gas storage tank according to a fifth embodiment of the present invention.
- FIG. 13 is a cross-sectional view of a corner for explaining a liquefied gas storage tank according to a sixth embodiment of the present invention.
- FIG. 14 is a view showing a structural analysis result of a corner portion of a liquefied gas storage tank according to a sixth embodiment of the present invention.
- 15 is a cross-sectional view of a corner for explaining a liquefied gas storage tank according to a seventh embodiment of the present invention.
- 16 is a view showing a structural analysis result of a corner portion of a liquefied gas storage tank according to a seventh embodiment of the present invention.
- 17 is a partial front view of a corner portion for explaining a liquefied gas storage tank according to an eighth embodiment of the present invention.
- FIG. 18 is a partial front view of a corner portion for explaining a liquefied gas storage tank according to a ninth embodiment of the present invention.
- FIG. 19 is a perspective view illustrating the upper block of FIG. 18 .
- FIG. 20 is a perspective view illustrating the upper connection block of FIG. 18 .
- FIG. 21 is an exploded perspective view of the upper block of FIG. 19 .
- FIG. 22 is a cross-sectional view of the upper block of FIG.
- FIG. 23 is a cross-sectional view showing another embodiment of the upper block of FIG.
- FIG. 24 is a perspective view for explaining the stuffing piece of FIG. 18
- FIG. 25 is a view for explaining a bonding preventing member applied to the upper connection block of FIG. 18 .
- 26 is a view for explaining another embodiment of the bonding prevention member applied to the upper connection block of FIG.
- FIG. 27 (a) and (b) are views for explaining another embodiment of the upper block and the upper connection block of FIG. 18 .
- FIG. 28 is a partially enlarged front view of a corner portion to which the upper block and upper connection block of FIG. 27 are applied.
- 29A and 29B are diagrams for explaining another embodiment of the upper block and the upper connection block of FIG. 18 .
- FIG. 30 is a partially enlarged front view of a corner portion to which the upper block and upper connection block of FIG. 29 are applied.
- FIG 31 (a) and (b) are views showing structural analysis results for each of the barrier fixing member of the present embodiment without the stiffener and the barrier fixing member of the comparative example having the stiffener.
- FIG 33 is a view for explaining a liquefied gas storage tank according to a tenth embodiment of the present invention.
- liquefied gas may be used to encompass all gas fuels that are generally stored in a liquid state, such as LNG or LPG, ethylene, ammonia, etc. can be expressed as This can be applied to boil-off gas as well.
- LNG may be used to encompass both NG (Natural Gas) in a liquid state as well as LNG in a supercritical state, etc. can
- FIG. 1 is a partial cross-sectional view of a flat portion for explaining a liquefied gas storage tank according to a first embodiment of the present invention
- Figure 2 is a corner portion for explaining a liquefied gas storage tank according to a first embodiment of the present invention It is a cross-sectional view
- FIG. 3 is a view showing the structural analysis result for the corner part of the liquefied gas storage tank according to the first embodiment of the present invention
- FIG. 4 is the corner of the liquefied gas storage tank according to the first embodiment of the present invention. It is a diagram showing the results of other structural analysis for the part.
- the ship provided with the liquefied gas storage tank (1) to be described below is a concept that encompasses offshore structures that float at a certain point on the sea and perform specific tasks in addition to merchant ships that transport cargo from the origin to the destination. let me know
- the liquefied gas storage tank (1) puts out that any type of tank for storing liquefied gas is included.
- the liquefied gas storage tank 1 is provided on a ship and can store liquefied gas such as LNG, which is a cryogenic (about -160°C to -170°C) material, and may include a planar structure and a corner structure.
- LNG which is a cryogenic (about -160°C to -170°C) material
- the transverse wall in the front-rear direction of the liquefied gas storage tank 1, the floor between the transverse walls, the vertical wall, and the ceiling may correspond to a planar structure.
- a structure in which the lateral wall, the floor, the vertical wall, and the ceiling of the liquefied gas storage tank 1 meet may correspond to a corner structure.
- the corner structure may include an obtuse corner structure or a right angle corner structure.
- the planar structure of the liquefied gas storage tank 1, as shown in FIG. 1, may be made of a combination of a plurality of flat blocks
- the corner structure of the liquefied gas storage tank 1 is, as shown in FIG. , may be made of a combination of a plurality of corner blocks.
- Such a plurality of flat blocks may be connected to a plurality of corner blocks at a corner portion of the liquefied gas storage tank (1).
- the liquefied gas storage tank (1), the primary barrier (2) in contact with the liquefied gas, the primary insulating wall (3) installed on the outside of the primary barrier (2) It may be configured to include a secondary barrier (4) installed on the outside of the primary insulating wall (3), a secondary insulating wall (5) disposed on the outside of the secondary barrier (4).
- the liquefied gas storage tank (1) may be supported on the hull (7) by the mastic (6) installed between the secondary insulating wall (5) and the hull (7).
- the primary barrier 2 may be composed of a flat primary barrier 2a of a flat block and a corner primary barrier 2b of a corner block
- the primary insulating wall 3 is a flat primary insulating wall of a flat block.
- the corner primary insulating wall 3b of the corner block, and the secondary barrier 4 may be composed of a flat secondary barrier 41a of a flat block and a corner secondary barrier 41b of a corner block.
- the secondary thermal insulation wall 5 may be formed of a flat secondary thermal insulation wall 5a of a flat block and a corner secondary thermal insulation wall 5b of a corner block.
- the secondary barrier 4 of the flat block and the corner block is, when arranging a plurality of flat blocks or a plurality of corner blocks adjacent to each other, the flat secondary barriers 41a disposed adjacent to each other or adjacently disposed adjacent to each other It may include a flat connecting barrier (42a) or a corner connecting barrier (42b) for connecting the corner secondary barrier (41b).
- the thickness of the first insulating wall 3 and the second insulating wall 5 in order to optimize the thermal insulation performance and storage capacity.
- the total thickness of the first insulating wall (3) and the thickness of the secondary insulating wall (5) is 250mm to 500 mm, and in this embodiment, the thickness of the first insulating wall 3 and the thickness of the second insulating wall 5 in the flat block and the corner block may be the same or similar.
- the thickness of the first insulating wall in the flat block and the corner block is about 1/3 thinner than the thickness of the second insulating wall, in this embodiment, the flat block and the corner block
- the thickness of the primary insulating wall 3 and the thickness of the secondary insulating wall 5 are made to be the same or similar to each other, and the reason will be explained later.
- the flat part of the liquefied gas storage tank 1 is made of a combination of a plurality of flat blocks, and the configuration of the flat block of the liquefied gas storage tank 1 described below is not only the first embodiment but also the second embodiment to be described later. It is to be noted in advance that the same applies to the eighth embodiments.
- the flat block of the liquefied gas storage tank 1 is disposed on a flat portion on the first or second surface at different angles forming a storage space for accommodating the liquefied gas, and is made of a metal material.
- the flat primary barrier (2a) is disposed on a flat portion on the first surface or the second surface at different angles to form an accommodating space for accommodating liquefied gas, which is a cryogenic material, and may be made of a metal material.
- the metal material may be a stainless steel material, but is not limited thereto.
- the flat primary barrier (2a) can prevent leakage of liquefied gas to the outside together with the flat secondary barrier (41a).
- the flat primary barrier 2a is fixedly coupled to the upper portion of the flat primary insulating wall 3a by a metal strip (not shown), and is in direct contact with liquefied gas, which is a cryogenic material stored in the liquefied gas storage tank 1 . can be installed as much as possible.
- This flat primary barrier (2a) seals the flat primary insulating wall (3a) and the corner primary barrier (2b) shown in Fig. 2 when the flat block and the corner block shown in Fig. 2 are adjacently connected .
- the flat primary heat insulating wall (3a) is designed to withstand an impact from the outside or an impact caused by liquefied gas sloshing from the inside while blocking heat intrusion from the outside, and the flat primary barrier (2a) and the flat secondary It may be installed between the barriers 41a.
- the flat primary insulating wall 3a may have a structure in which a flat primary plywood 31a and a flat primary insulating material 32a are sequentially stacked to the outside of the flat primary barrier 2a, and the flat primary ply
- the flat primary plywood (31a) may be installed between the flat primary barrier (2a) and the flat primary insulating material (32a).
- the flat primary insulating material 32a is to be formed of a material with excellent thermal insulation performance and excellent mechanical strength so as to withstand an impact from the outside or an impact caused by liquefied gas sloshing from the inside while blocking heat intrusion from the outside.
- the flat primary insulating material 32a may be formed of polyurethane foam between the flat primary plywood 31a and the flat secondary barrier 4a, and occupies most of the thickness of the flat primary thermal insulating wall 3a.
- the flat primary thermal insulation wall 3a is a part of a flat block together with the flat secondary barrier 41a and the flat secondary thermal insulation wall 5a.
- the flat primary thermal insulation wall 3a constituting the flat block is another configuration of the flat block It may have a width smaller than the width of the in-flat secondary insulating wall (5a). Due to this, a portion of the flat secondary barrier 41a may be exposed on both sides of the flat primary heat insulating wall 3a.
- a flat connection insulation wall 33a is installed in the space portion between the adjacent flat primary insulation walls 3a, that is, in the space portion where the flat secondary barrier 41a is exposed.
- the flat connection insulation wall 33a is disposed between the adjacent flat primary insulation walls 3a when the flat blocks are disposed adjacent to each other, and the flat connection plywood 331a identical to or similar to the flat primary insulation wall 3a. and the flat connection insulating material 332a may be provided in a stacked form, and have the same or similar thickness as the flat primary insulating wall 3a.
- Such a flat connection insulating wall 33a when a plurality of flat blocks are arranged adjacently, sealing the space portion generated between the adjacent flat secondary insulating walls 5a arranged adjacently together with the flat connection barrier 42a from the outside It is installed to play a role in blocking the intrusion of heat.
- the flat secondary barrier 41a may be installed between the flat primary thermal insulation wall 3a and the flat secondary thermal insulation wall 5a, and prevents liquefied gas from leaking to the outside together with the flat primary barrier 2a.
- the flat secondary barrier 41a is a part of a flat block together with the flat primary thermal insulation wall 3a and the flat secondary thermal insulation wall 5a. may be connected by a flat connecting barrier (42a).
- the flat connection barrier 42a may connect the neighboring flat secondary barriers 41 exposed to the outside when the flat blocks are disposed adjacently, and a flat connection insulation wall 33a may be installed thereon.
- the flat secondary insulating wall (5a) may be installed between the flat secondary barrier (4a) and the hull (7), comprising a flat secondary insulating material (51a), a flat secondary plywood (52a) can
- the flat secondary insulating wall 5a may have a structure in which a flat secondary insulating material 51a and a flat secondary plywood 52a are sequentially stacked on the outside of the flat secondary barrier 41a, and the flat secondary insulating material
- the total thickness of the sum of the thickness of (51a) and the thickness of the flat secondary plywood (52a) may be formed of 150mm to 240mm, limited thereto it is not
- the flat secondary insulating material 51a is to be formed of a material having excellent thermal insulation performance and excellent mechanical strength so as to withstand an impact from the outside or an impact caused by liquefied gas sloshing from the inside while blocking heat intrusion from the outside.
- the flat secondary insulating material 51a may be formed of polyurethane foam between the flat secondary barrier 41a and the flat secondary plywood 52a, and occupies most of the thickness of the flat secondary insulating wall 5a.
- the flat secondary plywood (52a) may be installed between the flat secondary insulating material (51a) and the hull (7).
- the flat connection insulating wall 33a encompassed by the flat primary insulating wall 3a is the thickness of the flat secondary insulating wall 5a and It can be configured to have the same or similar thickness.
- the flat connection insulating material 332a of the flat connection insulating wall 33a has a thickness of 90% to 110% of the flat secondary insulating material 51a, so that the flat connection of the flat connection insulating wall 33a
- the insulating material 332a may be configured to have the same or similar thickness as the flat secondary insulating material 51a.
- the thickness of the first insulating wall in the flat block is about 1/3 thinner than the thickness of the second insulating wall, in this embodiment, the flat primary insulating wall ( The thickness of 3a) and the thickness of the flat secondary insulating wall 5a were configured to be the same or similar, and this is to prevent damage to the flat secondary insulating wall 41a due to low-temperature stress.
- the flat secondary barrier 41a and the flat secondary thermal insulation wall 5a have a difference in their shrinkage amount depending on the temperature to which they are exposed.
- the flat secondary barrier 41a and the flat secondary thermal insulation wall 5a As the thickness of the flat connection insulating wall 33a becomes thinner, it may be greatly affected by the cooling and heat of cryogenic liquefied gas.
- the self temperature is lowered, the amount of shrinkage itself increases, and there is a problem in that the stress at a low temperature increases and the risk of damage to the flat secondary barrier 41a increases. This problem may occur especially in the flat connection barrier 42a that interconnects the flat secondary barrier 41a under the flat connection insulation wall 33a by bonding or the like.
- the flat connection barrier 42a is connected to the flat secondary barrier 41a of a plurality of flat blocks having both ends disposed adjacent to each other, and the flat secondary insulating wall 5a of the flat block is contracted. This is because both ends of the flat connection barrier 42a may be deformed to move away from or close to each other.
- the thickness of the primary insulating wall (3a) is relatively thick compared to the existing one, the cryogenic burden of the flat secondary barrier (41a) as well as the flat connection barrier (42a) in particular is reduced, and the As the thickness becomes relatively thin compared to the conventional one, the amount of shrinkage itself decreases, thereby reducing stress at low temperatures. As a result, the risk of damage to the secondary barrier 4 in the portion where a plurality of flat blocks are arranged adjacent to each other is relatively lower than that of the existing one.
- the corner part of the liquefied gas storage tank 1 will be described.
- the corner portion of the liquefied gas storage tank 1 may be formed of a combination of a plurality of corner blocks.
- the corner structure of the liquefied gas storage tank 1 described below will be described as an example of an obtuse corner structure forming an angle of 135 degrees, but is not limited to numerical values.
- the corner block of the liquefied gas storage tank 1 is disposed at a corner where the first and second surfaces at different angles form a storage space for accommodating the liquefied gas, and the metal A corner primary insulating wall (3b) arranged on the outside of the corner primary barrier (2b) and fixing the corner primary barrier (2b) of material, and a corner secondary barrier (3b) provided on the outside of the corner primary insulating wall (3b) 41b) and a corner secondary heat insulating wall 5b disposed on the outside of the corner secondary barrier 41b.
- the corner primary heat insulating wall (3b) may further include an inner bent portion (3b3).
- the corner primary barrier 2b is disposed at a corner portion where the first or second surfaces of different angles meet to form an accommodating space for accommodating liquefied gas, which is a cryogenic material, and may be made of a metal material.
- the corner primary barrier (2b) can prevent leakage of liquefied gas to the outside together with the corner secondary barrier (41b).
- Corner primary barrier (2b) although not shown in Figure 2, the corner primary insulating wall (3b) by a barrier fixing member installed in various ways such as bonding or bolting to the upper end of the corner primary insulating wall (3b) on It is fixedly coupled, and may be installed so as to be in direct contact with liquefied gas, which is a cryogenic material stored in the liquefied gas storage tank (1). Accordingly, the corner primary barrier (2b) referred to below may be used in the sense of including a barrier fixing member and the like.
- This corner primary barrier 2b is to seal the corner primary insulating wall 3b and the flat primary barrier 2a shown in FIG. 1 when the corner block and the flat block shown in FIG. 1 are adjacently connected. It is fixed to the inner primary plywood (31b) of the inner first fixing part (3b1) and the inner primary plywood (31b) of the inner second fixing part (3b2), and the insulating material of the inner bending part (3b3) ( 3b31) may be provided to be bent at a predetermined angle, for example, at an angle of 135 degrees on the inner surface.
- the corner primary insulating wall (3b) is designed to withstand an impact from the outside or an impact caused by liquefied gas sloshing from the inside while blocking heat intrusion from the outside, and the corner primary barrier (2b) and the corner secondary It may be installed between the barriers 41b.
- Corner primary insulating wall (3b) is provided on the inner side of the first and second surfaces, respectively, the inner primary plywood (31b), corner primary insulating material (32b) to the outside of the corner primary barrier (2b),
- the outer primary plywood (33b) may include an inner first fixing portion (3b1) and an inner second fixing portion (3b2) configured in a sequentially stacked structure.
- the inner first fixing part 3b1 is fixed to the outer first fixing part 5b1 and provided inside the first surface
- the inner second fixing part 3b2 is fixed to the outer second fixing part 5b2. to be provided on the inner side of the second surface.
- corner primary heat insulating wall 3b may include an inner bent portion 3b3 formed by filling a heat insulating material 3b31 between the inner first fixing portion 3b1 and the inner second fixing portion 3b2.
- This corner primary insulating wall (3b), the thickness of the inner primary plywood (31b), the thickness of the corner primary insulating material (32b), the thickness of the outer primary plywood (33b) is the sum of the thickness of the above-mentioned flat primary block It may be the same as the thickness of the thermal wall 3a (eg, a thickness of 160 mm to 250 mm).
- the inner primary plywood (31b) may be installed between the corner primary barrier (2b) and the corner primary insulating material (32b).
- the corner primary insulating wall 3b of the corner block is configured.
- the remaining thickness can be replaced with a corner primary insulating material (32b) formed of polyurethane foam.
- the thickness of the inner primary plywood (31b) of this embodiment may be 20mm to 80mm.
- the inner first and second fixing parts (3b1, 3b2) for holding the barrier fixing members to which the corner primary barriers (2b) are fixed in the corner blocks are plywood having a thickness of about 92mm as before.
- Corner primary insulating material (32b) may be disposed between the inner primary plywood (31b) and the outer primary plywood (33b), while blocking heat intrusion from the outside, impact from the outside or liquefaction from the inside
- it may be formed of high-density polyurethane foam, which is a material having excellent thermal insulation performance and excellent mechanical strength.
- the outer primary plywood (33b) may be disposed between the corner primary insulating material (32b) and the corner secondary barrier (41b), and may be fixed to the corner secondary barrier (41b).
- the outer primary plywood (33b) may be formed to a thickness of 6.5mm to 15mm.
- the corner primary insulating wall 3b of this embodiment has a structure in which the inner primary plywood 31b, the corner primary insulating material 32b, and the outer primary plywood 33b are sequentially stacked. Accordingly, the inner primary plywood (31b) and the outer primary plywood (33b) with high strength hold the heat shrinkage of the corner primary insulating material (32b) between the outer first and second fixing parts (5b1, 5b2) By preventing the heat shrinkage of the corner primary insulation material (32b) from being directly applied to the secondary barriers (4, 41b, 42b), and providing the corner primary insulation material (32b) as an intermediate layer, the inner primary ply sensitive to humidity It is possible to easily manage the tolerance of the wood (31b) and the outer primary plywood (33b).
- Each of the inner first and second fixing parts 3b1 and 3b2 composed of the corner primary heat insulating wall 3b is, respectively, the outer first and second fixing parts composed of the corner secondary barrier 41b and the corner secondary insulating wall 5b.
- Each of the first and second inner fixing parts 3b1 and 3b2 may have a width smaller than the width of each of the first and second outer fixing parts 5b1 and 5b2. Due to this, when a plurality of corner blocks are disposed adjacent to each other along the side of the corner where the first and second surfaces at different angles face each other, between the inner first and second fixing parts 3b1 and 3b2 disposed adjacent to each other.
- the inner bent portion 3b3 may be formed in the space portion of the , that is, in the space portion where the corner secondary barrier 41b is exposed.
- the inner bent portion 3b3 may be configured by filling the insulating material 3b31.
- the insulating material 3b31 of the inner bent portion 3b3 may be a low-density polyurethane foam, and a corner secondary barrier 41b and a corner connection barrier 42b are laminated on the outer surface bent at a certain angle, for example, an angle of 135 degrees.
- a secondary barrier 4 may be provided.
- the heat insulating material 3b31 of the inner bent portion 3b3 is a corner connecting barrier in a space generated between the first and second outer fixing portions 5b1 and 5b2 disposed adjacent to each other when a plurality of corner blocks are adjacently disposed. While sealing together with (42b), it can serve to block the intrusion of heat from the outside.
- the corner secondary barrier 41b may be provided on the outside of the corner primary thermal insulation wall 3b. Corner secondary barrier (41b), can be installed between the corner primary insulating wall (3b) and corner secondary insulating wall (5b), together with the corner primary barrier (2b) to prevent leakage of liquefied gas to the outside can
- the corner secondary barrier 41b is a part of a corner block together with the corner primary thermal insulation wall 3b and the corner secondary thermal insulation wall 5b. , 5b2) adjacent corner secondary barriers 41b may be connected by a corner connecting barrier 42b.
- the corner connecting barrier 42b can connect the neighboring corner secondary barriers 41b exposed to the outside when the corner blocks are arranged adjacently, and the insulating material 3b31 of the inner bending part 3b3 is installed on the upper part. , It can serve to block the intrusion of heat from the outside by sealing the space portion generated between the insulating material 3b31 of the inner bent portion 3b3 and the outer first and second fixing portions 5b1 and 5b2 disposed adjacent to each other. .
- the corner connection barrier 42b is formed to extend not only between the inner first and second fixing parts 3b1 and 3b2, but also with a length overlapping at least the inner first and second fixing parts 3b1 and 3b2. can
- the secondary barrier 4 in which the corner secondary barrier 41b and the corner connecting barrier 42b are stacked may be provided to be bent.
- the corner secondary heat insulating wall 5b may be disposed on the outside of the corner secondary barrier 41b.
- the corner secondary insulating wall (5b) may be installed between the corner secondary barrier (4b) and the hull (7), the inner secondary plywood (51b), the corner secondary insulating material (52b), the outer secondary ply It may be configured to include a wood (53b).
- Corner secondary insulating wall (5b) is fixed to the inside of the first side and the second side, respectively, to the outside of the corner secondary barrier (2b), the inner secondary plywood (51b), the corner secondary insulating material (52b),
- the outer secondary plywood 53b may include an outer first fixing portion 5b1 and an outer second fixing portion 5b2 configured in a sequentially stacked structure.
- outer first fixing part 5b1 may be fixed to the inner side of the first surface
- outer second fixing part 5b2 may be fixed to the inner side of the second surface
- the side facing the outer first fixing part 5b1 fixed to the first surface and the outer second fixing part 5b2 fixed to the second surface may be provided inclined in the direction ED for equally dividing the corner part.
- the corner portions are equally divided, but the present invention is not limited thereto and may not be uniform depending on the corner positions, so it goes without saying that the corner portions may be provided to be inclined in the unequal division direction ED.
- This corner secondary thermal insulation wall (5b), the thickness of the inner secondary plywood (51b), the thickness of the corner secondary thermal insulation material (52b), the total thickness of the outer secondary plywood (53b) is the above-mentioned flat 2 It may be the same as the thickness of the thermal barrier wall 5a (eg, a thickness of 150 mm to 240 mm).
- the inner secondary plywood (51b) may be disposed between the corner secondary barrier (2b) and the corner secondary insulating material (51b), the corner secondary barrier (2b) may be fixed.
- the inner secondary plywood (51b) may be formed to a thickness of 6.5mm to 15mm.
- the corner secondary insulating material 52b is to be formed of a material with excellent thermal insulation performance and excellent mechanical strength so as to withstand an impact from the outside or an impact caused by liquefied gas sloshing from the inside while blocking heat intrusion from the outside.
- Corner secondary insulating material (52b) can be formed of polyurethane foam between the inner secondary plywood (51b) and the outer secondary plywood (53b), occupying most of the thickness of the corner secondary insulating wall (5b) .
- the outer secondary plywood (53b) may be installed between the corner secondary insulating material (52b) and the hull (7).
- the outer secondary plywood (53b) may be formed to a thickness of 6.5mm to 25mm.
- the secondary barrier 4 in the corner block as well as the flat block is formed in the hull ( 7) is moved to the side and the radius of curvature is increased.
- the secondary barrier 4 is non-adhesive to the secondary heat insulating wall 5.
- length will also increase. This means an increase in the flexibility of the secondary barrier 4 in the obtuse-angled corner structure, whereby the secondary barrier 4 in the obtuse-angled corner structure absorbs peripheral deformations, for example, hull deformation is facilitated, and low-temperature stress is also reduced.
- the length of the non-adhesive portion may be, for example, 0 mm to 100 mm, preferably 50 mm to 100 mm.
- the secondary barrier 4 in the obtuse-angled corner structure of the present invention has a relatively low temperature applied to the existing secondary barrier 4 compared to the obtuse-angled corner structure of the primary insulating wall 3 formed with a relatively thin thickness. Stress can be reduced. In addition, the non-adhesive portion increases, so it is easy to absorb the hull deformation.
- heat transfer analysis was performed at 20°C at the hull position and 163°C at the primary barrier, and structural analysis was performed using the resulting temperature distribution.
- the thickness of the first insulation wall in the flat block and the corner block is about less than the thickness of the second insulation wall It has a thickness as thin as 1/3, and the fixing member corresponding to the inner first and second fixing parts (3b1, 3b2) consists only of plywood, and the length of the non-adhesive part is 50mm, and this existing liquefied gas storage In the tank, the stress value in the YY direction of the bent portion of the secondary barrier was about 66.8984 MPa, and the temperature was about -135.857 °C.
- the stress value in the YY direction obtained as a result of the structural analysis is the stress value at the corner.
- the lower the stress, the lower the stress, and the temperature is the temperature at the corner.
- the YY direction stress value was 37.155 MPa and the temperature was -57.940 °C.
- the YY direction stress value was 12.084 MPa and the temperature was -59.025 °C.
- the inner first and second fixing parts (3b1, 3b2) for holding the barrier fixing member to which the corner primary barrier (2b) is fixed in the corner block are not composed of only plywood, but of polyurethane foam.
- the corner primary insulating wall 3b of the corner block connected to the flat primary insulating wall 3a of the flat block and the corner block connected to the flat secondary insulating wall 5a of the flat block are second blocking
- the thickness of the thermal wall 5b is the same or similar
- the thickness of the corner primary thermal insulation wall 3b becomes relatively thick compared to the existing one (however, the thickness of the corner secondary thermal insulation wall 5b maintains the mechanical strength at a certain level) thickness)
- the thickness of the corner primary insulating wall (3b) is configured to be relatively thicker than before, so that the secondary barriers (4, 41b, 42b) are non-adhesive to the corner secondary insulating wall (5b)
- the length of the portion can be increased, and not only can the probability of damage to the secondary barriers 4, 41b, 42b increase due to the increase in flexibility of the secondary barriers 4, 41b, 42b, but also the secondary barriers 4 , 41b, 42b) can easily absorb the hull deformation, and the low-temperature stress can be further reduced.
- FIG. 5 is a cross-sectional view of a corner part for explaining a liquefied gas storage tank according to a second embodiment of the present invention
- FIG. 6 is a structural analysis result for a corner part of a liquefied gas storage tank according to a second embodiment of the present invention. is a diagram showing
- the planar structure of the liquefied gas storage tank 1 of this embodiment may be made of a combination of a plurality of flat blocks, as shown in FIG. 1 above, and the corner structure of the liquefied gas storage tank 1 is shown in FIG. 5 As shown in, it may be made of a combination of a plurality of corner blocks. Such a plurality of flat blocks may be connected to a plurality of corner blocks at a corner portion of the liquefied gas storage tank (1).
- the configuration of the flat block is the same as or similar to the configuration described above with reference to FIG. 1 . That is, the flat block of the liquefied gas storage tank 1 of this embodiment is, as shown in FIG. 1, a flat portion on the first or second surface at different angles forming a storage space for accommodating the liquefied gas.
- the flat primary insulating wall 3a arranged on the outside of the flat primary barrier 2a and fixing the flat primary barrier 2a made of a metal material, and the flat primary insulating wall 3a provided on the outside of the flat primary insulating wall 3a It may include a secondary barrier (41a) and a flat secondary heat insulating wall (5a) disposed on the outside of the flat secondary barrier (41a).
- the liquefied gas storage tank 1 includes a primary barrier 2 in contact with liquefied gas, a primary insulating wall 3 installed on the outside of the primary barrier 2, It may be configured to include a secondary barrier (4) installed on the outside of the primary insulating wall (3), a secondary insulating wall (5) disposed on the outside of the secondary barrier (4).
- the liquefied gas storage tank (1) may be supported on the hull (7) by the mastic (6) installed between the secondary insulating wall (5) and the hull (7).
- the primary barrier 2 may be composed of a flat primary barrier 2a of a flat block and a corner primary barrier 2b of a corner block
- the primary insulating wall 3 is a flat primary insulating wall of a flat block.
- the corner primary insulating wall 3b of the corner block, and the secondary barrier 4 may be composed of a flat secondary barrier 41a of a flat block and a corner secondary barrier 41b of a corner block.
- the secondary thermal insulation wall 5 may be formed of a flat secondary thermal insulation wall 5a of a flat block and a corner secondary thermal insulation wall 5b of a corner block.
- the thickness of the primary insulating wall 3 and the thickness of the secondary insulating wall 5 in the flat block and the corner block may be the same or similar.
- the secondary barrier 4 of the flat block and the corner block is, when arranging a plurality of flat blocks or a plurality of corner blocks adjacent to each other, the flat secondary barriers 41a disposed adjacent to each other or adjacently disposed adjacent to each other It may include a flat connecting barrier (42a) or a corner connecting barrier (42b) for connecting the corner secondary barrier (41b).
- the corner portion of the liquefied gas storage tank 1 according to the second embodiment of the present invention may be made of a combination of a plurality of corner blocks.
- the corner structure of the liquefied gas storage tank 1 to be described below may be an obtuse corner structure forming an angle of a certain angle, for example, 135 degrees.
- the corner block of the liquefied gas storage tank 1 is disposed at a corner portion where the first and second surfaces of different angles forming a storage space for accommodating the liquefied gas meet, and a corner primary barrier 2b made of metal.
- a corner primary insulating wall 3b disposed on the outside of the corner primary barrier 2b
- a corner secondary barrier 41b provided on the outside of the corner primary insulating wall 3b
- a corner secondary barrier It may include a corner secondary heat insulating wall (5b) disposed on the outside of (41b).
- the corner primary barrier 2b is disposed at a corner portion where the first or second surfaces of different angles meet to form an accommodating space for accommodating liquefied gas, which is a cryogenic material, and may be made of a metal material.
- the corner primary barrier (2b) can prevent leakage of liquefied gas to the outside together with the corner secondary barrier (41b).
- the corner primary barrier 2b of the present embodiment is basically the same as or similar to the first embodiment described above, and detailed description thereof will be omitted herein.
- the corner primary barrier 2b of this embodiment may have a different bending angle as the configuration of the corner primary thermal insulation wall 3b is different from the first embodiment.
- the corner primary thermal insulation wall 3b is It will be mentioned when explaining.
- the corner primary insulating wall (3b) is designed to withstand an impact from the outside or an impact caused by liquefied gas sloshing from the inside while blocking heat intrusion from the outside, and the corner primary barrier (2b) and the corner secondary It may be installed between the barriers 41b.
- the outer primary plywood 33b is omitted, and the inner bent portion 3b3 configured by filling the insulating material 3b31 as compared to the first embodiment described above.
- Corner primary insulating wall (3b) is provided on the inner side of the first side and the second side, respectively, the inner primary plywood (31b), corner primary insulating material (32b) to the outside of the corner primary barrier (2b) It may include an inner first fixing part 3b1 and an inner second fixing part 3b2 configured in a sequentially stacked structure.
- the inner primary plywood 31b and the corner primary insulating material 32b of this embodiment may be the same as or similar to the first embodiment described above, and thus detailed descriptions are omitted to avoid overlapping descriptions. .
- the inner first fixing part 3b1 is fixed to the outer first fixing part 5b1 and provided on the inner side of the first surface
- the inner second fixing part 3b2 is fixed to the outer second fixing part 5b2 and first fixing part 5b2. It may be provided on the inner side of the two surfaces.
- corner primary heat insulating wall 3b may include an inner intermediate fixing part 3b12 provided between the inner first fixing part 3b1 and the inner second fixing part 3b2.
- the inner intermediate fixing part (3b12) is a corner intermediate insulating material (32b12) fixed to the corner connecting barrier (42b) connecting the neighboring corner secondary barriers (41b), and the corner intermediate insulating material (32b12) It is disposed on the inside of the corner It may include an inner middle plywood (31b12) to which the primary barrier (2b) is fixed.
- the inner intermediate plywood 31b12 may be formed in the same or similar structure to the inner primary plywood 31b, and the corner primary barrier 2b may be fixed together with the inner primary plywood 31b. .
- the inner intermediate plywood (31b12) may be parallel to the direction perpendicular to the equally dividing direction (ED) when the corner portion is equally divided. However, of course, the inner middle plywood (31b12) may not be parallel to the direction perpendicular to the direction (ED) for dividing the corner portion when unevenly dividing the corner portion.
- the corner intermediate insulating material 32b12 may be formed of the same or similar material as the corner primary insulating material 32b. Corner intermediate insulating material (32b12) may be formed of high-density polyurethane foam.
- the corner connection barrier 42b is formed to extend not only between the inner first and second fixing parts 3b1 and 3b2, but also with a length overlapping at least the inner first and second fixing parts 3b1 and 3b2.
- the inner intermediate plywood (31b12) is provided between the inner first fixing portion (3b1) and the inner second fixing portion (3b2), so that the corner primary barrier (2b) is, the inner 1 of the inner first fixing portion (3b1) It is fixed to the inner primary plywood (31b) of the primary plywood (31b), the inner intermediate plywood (31b12) and the inner second fixing part (3b2) of the inner intermediate fixing part (3b12), the inner first fixing part ( 3b1) and the inner intermediate fixing portion 3b12 and between the inner intermediate fixing portion 3b12 and the inner second fixing portion 3b2 may be provided to be bent in an angular range of 150 degrees to 160 degrees.
- the inner first fixing part 3b1 and the inner second fixing part 3b2 respectively provided on the inside of the first and second surfaces at different angles are spaced apart by a predetermined distance, and the inner second
- the bending angle of the corner primary barrier 2b by the inner intermediate fixing portion 3b12 can be alleviated, and the corner It is possible to reduce the sloshing burden on the primary barrier 2b, as well as increase the mechanical strength of the corner portion.
- the corner secondary barrier 41b may be installed between the corner primary thermal insulation wall 3b and the corner secondary thermal insulation wall 5b, and when the corner blocks are arranged adjacently, the outer first and second fixing parts 5b1 and 5b2 ), the adjacent corner secondary barriers 41b may be connected by the corner connecting barriers 42b, and it is possible to prevent leakage of liquefied gas to the outside together with the corner primary barriers 2b.
- the corner secondary barrier 41b of the present embodiment is the same as or similar to the first embodiment described above, and detailed description is omitted to avoid overlapping description.
- Corner secondary insulating wall (5b), the inner secondary plywood (51b), the corner secondary insulating material (52b), may be configured to include an outer secondary plywood (53b). Corner secondary insulating wall (5b) is fixed to the inside of the first side and the second side, respectively, to the outside of the corner secondary barrier (2b), the inner secondary plywood (51b), the corner secondary insulating material (52b),
- the outer secondary plywood 53b may include an outer first fixing portion 5b1 and an outer second fixing portion 5b2 configured in a sequentially stacked structure.
- corner secondary heat insulating walls 5b of this embodiment are the same as or similar to those of the first embodiment, and detailed descriptions are omitted to avoid overlapping descriptions.
- the stress value was 10.982 MPa, and the temperature was -67.914 °C.
- FIG. 7 is a cross-sectional view of a corner part for explaining a liquefied gas storage tank according to a third embodiment of the present invention
- FIG. 8 is a structural analysis result for a corner part of a liquefied gas storage tank according to a third embodiment of the present invention. is a diagram showing
- the planar structure of the liquefied gas storage tank 1 of this embodiment may be made of a combination of a plurality of flat blocks, as shown in FIG. 1 described above, and the corner structure of the liquefied gas storage tank 1 is shown in FIG. 7 As shown in, it may be made of a combination of a plurality of corner blocks. Such a plurality of flat blocks may be connected to a plurality of corner blocks at a corner portion of the liquefied gas storage tank (1).
- the configuration of the flat block is the same as or similar to the configuration described above with reference to FIG. 1 . That is, the flat block of the liquefied gas storage tank 1 of this embodiment is, as shown in FIG. 1, a flat portion on the first or second surface at different angles forming a storage space for accommodating the liquefied gas.
- the flat primary insulating wall 3a arranged on the outside of the flat primary barrier 2a and fixing the flat primary barrier 2a made of a metal material, and the flat primary insulating wall 3a provided on the outside of the flat primary insulating wall 3a It may include a secondary barrier (41a) and a flat secondary heat insulating wall (5a) disposed on the outside of the flat secondary barrier (41a).
- the liquefied gas storage tank (1), the primary barrier (2) in contact with the liquefied gas, the primary insulating wall (3) installed on the outside of the primary barrier (2) It may be configured to include a secondary barrier (4) installed on the outside of the primary insulating wall (3), a secondary insulating wall (5) disposed on the outside of the secondary barrier (4).
- the liquefied gas storage tank (1) may be supported on the hull (7) by the mastic (6) installed between the secondary insulating wall (5) and the hull (7).
- the primary barrier 2 may be composed of a flat primary barrier 2a of a flat block and a corner primary barrier 2b of a corner block
- the primary insulating wall 3 is a flat primary insulating wall of a flat block.
- the corner primary insulating wall 3b of the corner block, and the secondary barrier 4 may be composed of a flat secondary barrier 41a of a flat block and a corner secondary barrier 41b of a corner block.
- the secondary thermal insulation wall 5 may be formed of a flat secondary thermal insulation wall 5a of a flat block and a corner secondary thermal insulation wall 5b of a corner block.
- the thickness of the primary insulating wall 3 and the thickness of the secondary insulating wall 5 in the flat block and the corner block may be the same or similar.
- the secondary barrier 4 of the flat block and the corner block is, when arranging a plurality of flat blocks or a plurality of corner blocks adjacent to each other, the flat secondary barriers 41a disposed adjacent to each other or adjacently disposed adjacent to each other It may include a flat connecting barrier (42a) or a corner connecting barrier (42b) for connecting the corner secondary barrier (41b).
- the corner portion of the liquefied gas storage tank 1 according to the third embodiment of the present invention may be made of a combination of a plurality of corner blocks.
- the corner structure of the liquefied gas storage tank 1 to be described below may be an obtuse corner structure forming an angle of a certain angle, for example, 135 degrees.
- the position of the corner primary insulating wall 3b may be positioned to expose the corner secondary barrier 41b constructed on the corner secondary insulating wall 5b at the center of the corner. . Therefore, the exposed corner secondary barriers 41b are interconnected with the corner connecting barriers 42b to finish, or the corner primary insulating walls 3b are adjacent to each other to connect the corner secondary barriers 41b.
- the corner connection barrier 42b is formed to extend not only between the inner first and second fixing parts 3b1 and 3b2, but also with a length overlapping at least the inner first and second fixing parts 3b1 and 3b2.
- the corner block of the liquefied gas storage tank 1 is disposed at a corner portion where the first and second surfaces of different angles forming a storage space for accommodating the liquefied gas meet, and a corner primary barrier 2b made of metal.
- a corner primary insulating wall 3b disposed on the outside of the corner primary barrier 2b
- a corner secondary barrier 41b provided on the outside of the corner primary insulating wall 3b
- a corner secondary barrier It may include a corner secondary heat insulating wall (5b) disposed on the outside of (41b).
- the corner primary barrier 2b is disposed at a corner portion where the first or second surfaces of different angles meet to form an accommodating space for accommodating liquefied gas, which is a cryogenic material, and may be made of a metal material.
- the corner primary barrier (2b) can prevent leakage of liquefied gas to the outside together with the corner secondary barrier (41b).
- the corner primary barrier 2b of the present embodiment is basically the same as or similar to the first embodiment described above, and detailed description thereof will be omitted herein.
- the corner primary insulating wall (3b) is designed to withstand an impact from the outside or an impact caused by liquefied gas sloshing from the inside while blocking heat intrusion from the outside, and the corner primary barrier (2b) and the corner secondary It may be installed between the barriers 41b.
- the configuration of the corner primary heat insulating wall 3b of this embodiment is the same or similar except that the outer primary plywood 33b is omitted as compared to the first embodiment described above. Here, the different configuration will be mainly described.
- Corner primary insulating wall (3b) is provided on the inner side of the first side and the second side, respectively, the inner primary plywood (31b), corner primary insulating material (32b) to the outside of the corner primary barrier (2b) It may include an inner first fixing part 3b1 and an inner second fixing part 3b2 configured in a sequentially stacked structure.
- the inner primary plywood 31b and the corner primary insulating material 32b of this embodiment may be the same as or similar to the first embodiment described above, and thus detailed descriptions are omitted to avoid overlapping descriptions. .
- the inner first fixing part 3b1 is fixed to the outer first fixing part 5b1 and provided on the inner side of the first surface
- the inner second fixing part 3b2 is fixed to the outer second fixing part 5b2 and first fixing part 5b2. It may be provided on the inner side of the two surfaces.
- the corner primary heat insulating wall 3b may include an inner bent portion 3b3 configured by filling a heat insulating material 3b32 between the inner first fixing portion 3b1 and the inner second fixing portion 3b2.
- the heat insulating material 3b32 of the inner bent portion 3b3 of the present embodiment may be the same as or similar to that of the first embodiment described above, and accordingly, detailed descriptions thereof will be omitted to avoid overlapping descriptions.
- the corner secondary barrier 41b may be installed between the corner primary thermal insulation wall 3b and the corner secondary thermal insulation wall 5b, and when the corner blocks are arranged adjacently, the outer first and second fixing parts 5b1 and 5b2 ), the adjacent corner secondary barriers 41b may be connected by the corner connecting barriers 42b, and it is possible to prevent leakage of liquefied gas to the outside together with the corner primary barriers 2b.
- the corner secondary barrier 41b of this embodiment may have the same basic configuration as or similar to the first embodiment described above. However, in the corner secondary barrier 41b encompassing the corner connection barrier 42b of this embodiment, as some configurations of the corner secondary heat insulating wall 5b are different from the first embodiment described above, the arrangement relationship may vary. Hereinafter, it will be referred to when explaining the corner secondary heat insulating wall (5b).
- Corner secondary insulating wall (5b), the inner secondary plywood (51b), the corner secondary insulating material (52b), may be configured to include an outer secondary plywood (53b). Corner secondary insulating wall (5b) is fixed to the inside of the first side and the second side, respectively, to the outside of the corner secondary barrier (2b), the inner secondary plywood (51b), the corner secondary insulating material (52b),
- the outer secondary plywood 53b may include an outer first fixing portion 5b1 and an outer second fixing portion 5b2 configured in a sequentially stacked structure.
- the outer first fixing portion 5b1 and the outer second fixing portion 5b2 may be provided so that side surfaces facing each other are inclined in the direction ED for equally dividing the corner portions.
- the corner portions are equally divided, but the present invention is not limited thereto and may not be uniform depending on the corner positions, so it goes without saying that the corner portions may be provided to be inclined in the unequal division direction ED.
- the outer first fixing part 5b1 and the outer second fixing part 5b2 may have chamfers formed at the corners facing each other.
- the corner secondary heat insulating wall 5b includes an outer bent portion 5b3 including a heat insulating material 5b31 filled between the chamfered portions of the outer first fixing portion 5b1 and the outer second fixing portion 5b2. can do.
- the heat insulating material 5b31 of the outer bent portion 5b3 may be a low-density polyurethane foam.
- a corner secondary barrier ( 41b) is, the inner secondary plywood (51b) of the outer first fixing part (5b1), the insulating material (5b31) of the outer bending part (5b3), the inner secondary plywood (51b) of the outer second fixing part (5b2) ), and may be provided to be bent at a predetermined angle, for example, at an angle of 135 degrees from the inside of the heat insulating material 5b31 of the outer bent portion 5b3.
- a chamfer is formed at the corner where the outer first fixing part 5b1 and the outer second fixing part 5b2 fixed to the first and second surfaces at different angles face each other, and the chamfer is formed.
- the stress value was 12.003 MPa, and the temperature was -64.358 °C.
- FIG. 9 is a cross-sectional view of a corner part for explaining a liquefied gas storage tank according to a fourth embodiment of the present invention
- FIG. 10 is a structural analysis result for a corner part of a liquefied gas storage tank according to a fourth embodiment of the present invention. is a diagram showing
- the planar structure of the liquefied gas storage tank 1 of this embodiment may be made of a combination of a plurality of flat blocks, as shown in FIG. 1 above, and the corner structure of the liquefied gas storage tank 1 is shown in FIG. 9 As shown in, it may be made of a combination of a plurality of corner blocks. Such a plurality of flat blocks may be connected to a plurality of corner blocks at a corner portion of the liquefied gas storage tank (1).
- the configuration of the flat block is the same as or similar to the configuration described above with reference to FIG. 1 . That is, the flat block of the liquefied gas storage tank 1 of this embodiment is, as shown in FIG. 1, a flat portion on the first or second surface at different angles forming a storage space for accommodating the liquefied gas.
- the flat primary insulating wall 3a arranged on the outside of the flat primary barrier 2a and fixing the flat primary barrier 2a made of a metal material, and the flat primary insulating wall 3a provided on the outside of the flat primary insulating wall 3a It may include a secondary barrier (41a) and a flat secondary heat insulating wall (5a) disposed on the outside of the flat secondary barrier (41a).
- the liquefied gas storage tank (1), the primary barrier (2) in contact with the liquefied gas, the primary insulating wall (3) installed on the outside of the primary barrier (2) It may be configured to include a secondary barrier (4) installed on the outside of the primary insulating wall (3), a secondary insulating wall (5) disposed on the outside of the secondary barrier (4).
- the liquefied gas storage tank (1) may be supported on the hull (7) by the mastic (6) installed between the secondary insulating wall (5) and the hull (7).
- the primary barrier 2 may be composed of a flat primary barrier 2a of a flat block and a corner primary barrier 2b of a corner block
- the primary insulating wall 3 is a flat primary insulating wall of a flat block.
- the corner primary insulating wall 3b of the corner block, and the secondary barrier 4 may be composed of a flat secondary barrier 41a of a flat block and a corner secondary barrier 41b of a corner block.
- the secondary thermal insulation wall 5 may be formed of a flat secondary thermal insulation wall 5a of a flat block and a corner secondary thermal insulation wall 5b of a corner block.
- the thickness of the primary insulating wall 3 and the thickness of the secondary insulating wall 5 in the flat block and the corner block may be the same or similar.
- the secondary barrier 4 of the flat block and the corner block is, when arranging a plurality of flat blocks or a plurality of corner blocks adjacent to each other, the flat secondary barriers 41a disposed adjacent to each other or adjacently disposed adjacent to each other It may include a flat connecting barrier (42a) or a corner connecting barrier (42b) for connecting the corner secondary barrier (41b).
- the corner portion of the liquefied gas storage tank 1 according to the fourth embodiment of the present invention may be made of a combination of a plurality of corner blocks.
- the corner structure of the liquefied gas storage tank 1 to be described below may be an obtuse corner structure forming an angle of a certain angle, for example, 135 degrees.
- the position of the corner primary insulating wall 3b may be positioned to expose the corner secondary barrier 41b constructed on the corner secondary insulating wall 5b at the center of the corner. . Therefore, the exposed corner secondary barriers 41b are interconnected with the corner connecting barriers 42b to finish, or the corner primary insulating walls 3b are adjacent to each other to connect the corner secondary barriers 41b.
- the corner connection barrier 42b is formed to extend not only between the inner first and second fixing parts 3b1 and 3b2, but also with a length overlapping at least the inner first and second fixing parts 3b1 and 3b2.
- the corner block of the liquefied gas storage tank 1 is disposed at a corner portion where the first and second surfaces of different angles forming a storage space for accommodating the liquefied gas meet, and a corner primary barrier 2b made of metal.
- a corner primary insulating wall 3b disposed on the outside of the corner primary barrier 2b
- a corner secondary barrier 41b provided on the outside of the corner primary insulating wall 3b
- a corner secondary barrier It may include a corner secondary heat insulating wall (5b) disposed on the outside of (41b).
- the corner primary barrier 2b is disposed at a corner portion where the first or second surfaces of different angles meet to form an accommodating space for accommodating liquefied gas, which is a cryogenic material, and may be made of a metal material.
- the corner primary barrier (2b) can prevent leakage of liquefied gas to the outside together with the corner secondary barrier (41b).
- the corner primary barrier 2b of the present embodiment is basically the same as or similar to the first embodiment described above, and detailed description thereof will be omitted herein.
- the corner primary insulating wall (3b) is designed to withstand an impact from the outside or an impact caused by liquefied gas sloshing from the inside while blocking heat intrusion from the outside, and the corner primary barrier (2b) and the corner secondary It may be installed between the barriers 41b.
- the configuration of the corner primary insulating wall 3b of this embodiment is the same as that of the first embodiment, except that the outer primary plywood 33b is omitted and the configuration of the inner bent portion 3b3 is different as compared to the first embodiment described above. Although similar, a different configuration will be mainly described herein.
- Corner primary insulating wall (3b) is provided on the inner side of the first side and the second side, respectively, the inner primary plywood (31b), corner primary insulating material (32b) to the outside of the corner primary barrier (2b) It may include an inner first fixing part 3b1 and an inner second fixing part 3b2 configured in a sequentially stacked structure.
- the inner primary plywood 31b and the corner primary insulating material 32b of this embodiment may be the same as or similar to the first embodiment described above, and thus detailed descriptions are omitted to avoid overlapping descriptions. .
- the inner first fixing part 3b1 is fixed to the outer first fixing part 5b1 and provided on the inner side of the first surface
- the inner second fixing part 3b2 is fixed to the outer second fixing part 5b2 and first fixing part 5b2. It may be provided on the inner side of the two surfaces.
- the corner primary insulating wall (3b) is filled between the inner first fixing portion (3b1) and the inner second fixing portion (3b2), the corner secondary barrier (41b) covering the corner connecting barrier (42b) on It may include an outer insulator (3b33) provided in the, and an inner bent portion (3b3) including the inner insulator (3b34) provided between the outer heat insulator (3b33) and the corner primary barrier (2b).
- the outer insulating material 3b33 of the inner bent portion 3b3 may be glass wool, and a corner secondary barrier 41b and a corner connection barrier 42b are laminated on the outer surface bent at a predetermined angle, for example, an angle of 135 degrees.
- a secondary barrier 4 may be provided.
- the inner heat insulating material 3b34 of the inner bent portion 3b3 may be a low-density polyurethane foam, and a corner primary barrier 2b may be provided on the inner surface bent at a certain angle, for example, an angle of 135 degrees.
- each of the outer heat insulating material 3b33 and the inner heat insulating material 3b34 of the inner bent part 3b3 can be made freely.
- the corner secondary barrier 41b may be installed between the corner primary thermal insulation wall 3b and the corner secondary thermal insulation wall 5b, and when the corner blocks are arranged adjacently, the outer first and second fixing parts 5b1 and 5b2 ), the adjacent corner secondary barriers 41b may be connected by the corner connecting barriers 42b, and it is possible to prevent leakage of liquefied gas to the outside together with the corner primary barriers 2b.
- the corner secondary barrier 41b of this embodiment may have the same basic configuration as or similar to the first embodiment described above. However, in the corner secondary barrier 41b encompassing the corner connection barrier 42b of this embodiment, some configurations of the corner primary thermal insulation wall 3b and the corner secondary thermal insulation wall 5b are the first embodiment described above. and, the arrangement relationship may vary, and will be referred to when describing the corner secondary insulating wall 5b below.
- Corner secondary insulating wall (5b), the inner secondary plywood (51b), the corner secondary insulating material (52b), may be configured to include an outer secondary plywood (53b). Corner secondary insulating wall (5b) is fixed to the inside of the first side and the second side, respectively, to the outside of the corner secondary barrier (2b), the inner secondary plywood (51b), the corner secondary insulating material (52b),
- the outer secondary plywood 53b may include an outer first fixing portion 5b1 and an outer second fixing portion 5b2 configured in a sequentially stacked structure.
- the outer first fixing portion 5b1 and the outer second fixing portion 5b2 may be provided so that side surfaces facing each other are inclined in the direction ED for equally dividing the corner portions.
- the corner portions are equally divided, but it is not limited thereto and may not be uniform depending on the corner positions.
- the outer first fixing part 5b1 and the outer second fixing part 5b2 may have a step formed at the corners facing each other.
- the corner secondary heat insulating wall 5b may include an outer bent portion 5b3 including a heat insulating material 5b312 filled between the step portions of the outer first fixing portion 5b1 and the outer second fixing portion 5b2.
- the heat insulating material 5b32 of the outer bent portion 5b3 may be glass wool, which is the same material as the outer heat insulating material 3b33 of the inner bent portion 3b3.
- a corner secondary barrier ( 41b) is, the inner secondary plywood (51b) of the outer first fixing part (5b1), the insulating material (5b32) of the outer bending part (5b3), the inner secondary plywood (51b) of the outer second fixing part (5b2) ), and may be provided to be bent at a predetermined angle, for example, an angle of 135 degrees from the inside of the heat insulating material 5b32 of the outer bent portion 5b3.
- a step is formed at the corner where the outer first fixing part 5b1 and the outer second fixing part 5b2 respectively fixed to the first and second surfaces at different angles face each other, and the step difference
- a heat insulating material 5b32 of the outer bent portion 5b3 made of glass wool is provided in the portion, and the corner secondary barrier 41b covering the corner connection barrier 42b is interposed between the inner bent portion 5b3 made of glass wool.
- the 10 is a structural analysis result of the stress value and temperature distribution in the YY direction of the secondary barriers 4, 41b, 42b in the portion where the outer first and second fixing parts 5b1 and 5b2 face each other and are bent in the YY direction.
- the stress value was 12.003 MPa, and the temperature was -64.358 °C.
- FIG. 11 is a cross-sectional view of a corner part for explaining a liquefied gas storage tank according to a fifth embodiment of the present invention
- FIG. 12 is a structural analysis result for a corner part of a liquefied gas storage tank according to a fifth embodiment of the present invention. is a diagram showing
- the planar structure of the liquefied gas storage tank 1 of this embodiment may be made of a combination of a plurality of flat blocks, as shown in FIG. 1 described above, and the corner structure of the liquefied gas storage tank 1 is shown in FIG. As shown in, it may be made of a combination of a plurality of corner blocks. Such a plurality of flat blocks may be connected to a plurality of corner blocks at a corner portion of the liquefied gas storage tank (1).
- the configuration of the flat block is the same as or similar to the configuration described above with reference to FIG. 1 . That is, the flat block of the liquefied gas storage tank 1 of this embodiment is, as shown in FIG. 1, a flat portion on the first or second surface at different angles forming a storage space for accommodating the liquefied gas.
- the flat primary insulating wall 3a arranged on the outside of the flat primary barrier 2a and fixing the flat primary barrier 2a made of a metal material, and the flat primary insulating wall 3a provided on the outside of the flat primary insulating wall 3a It may include a secondary barrier (41a) and a flat secondary heat insulating wall (5a) disposed on the outside of the flat secondary barrier (41a).
- the liquefied gas storage tank (1), the primary barrier (2) in contact with the liquefied gas, the primary insulating wall (3) installed on the outside of the primary barrier (2) It may be configured to include a secondary barrier (4) installed on the outside of the primary insulating wall (3), a secondary insulating wall (5) disposed on the outside of the secondary barrier (4).
- the liquefied gas storage tank (1) may be supported on the hull (7) by the mastic (6) installed between the secondary insulating wall (5) and the hull (7).
- the primary barrier 2 may be composed of a flat primary barrier 2a of a flat block and a corner primary barrier 2b of a corner block
- the primary insulating wall 3 is a flat primary insulating wall of a flat block.
- the corner primary insulating wall 3b of the corner block, and the secondary barrier 4 may be composed of a flat secondary barrier 41a of a flat block and a corner secondary barrier 41b of a corner block.
- the secondary thermal insulation wall 5 may be formed of a flat secondary thermal insulation wall 5a of a flat block and a corner secondary thermal insulation wall 5b of a corner block.
- the thickness of the primary insulating wall 3 and the thickness of the secondary insulating wall 5 in the flat block and the corner block may be the same or similar.
- the secondary barrier 4 of the flat block and the corner block is, when arranging a plurality of flat blocks or a plurality of corner blocks adjacent to each other, the flat secondary barriers 41a disposed adjacent to each other or adjacently disposed adjacent to each other It may include a flat connecting barrier (42a) or a corner connecting barrier (42b) for connecting the corner secondary barrier (41b).
- the corner portion of the liquefied gas storage tank 1 according to the fifth embodiment of the present invention may be made of a combination of a plurality of corner blocks.
- the corner structure of the liquefied gas storage tank 1 to be described below may be an obtuse corner structure forming an angle of a certain angle, for example, 135 degrees.
- the position of the corner primary insulating wall 3b may be positioned to expose the corner secondary barrier 41b constructed on the corner secondary insulating wall 5b at the center of the corner. . Therefore, the exposed corner secondary barriers 41b are interconnected with the corner connecting barriers 42b to finish, or the corner primary insulating walls 3b are adjacent to each other to connect the corner secondary barriers 41b.
- the corner connection barrier 42b is formed to extend to a length overlapping with at least the inner first and second fixing parts 3b1 and 3b2 as well as between the inner first and second fixing parts 3b1 and 3b2.
- the corner block of the liquefied gas storage tank 1 is disposed at a corner where the first and second surfaces of different angles forming a storage space for accommodating the liquefied gas meet, and a corner primary barrier 2b made of metal. ) and a corner primary insulating wall 3b disposed on the outside of the corner primary barrier 2b, a corner secondary barrier 41b provided on the outside of the corner primary insulating wall 3b, and a corner secondary barrier It may include a corner secondary heat insulating wall (5b) disposed on the outside of (41b).
- the corner primary barrier 2b is disposed at a corner portion where the first or second surfaces of different angles meet to form an accommodating space for accommodating liquefied gas, which is a cryogenic material, and may be made of a metal material.
- the corner primary barrier (2b) can prevent leakage of liquefied gas to the outside together with the corner secondary barrier (41b).
- the corner primary barrier 2b of the present embodiment is basically the same as or similar to the first embodiment described above, and detailed description thereof will be omitted herein.
- the corner primary insulating wall (3b) is designed to withstand an impact from the outside or an impact caused by liquefied gas sloshing from the inside while blocking heat intrusion from the outside, and the corner primary barrier (2b) and the corner secondary It may be installed between the barriers 41b.
- the configuration of the corner primary heat insulating wall 3b of this embodiment is the same or similar except that the outer primary plywood 33b is omitted as compared to the first embodiment described above, and here, the different configuration will be mainly described.
- Corner primary insulating wall (3b) is provided on the inner side of the first side and the second side, respectively, the inner primary plywood (31b), corner primary insulating material (32b) to the outside of the corner primary barrier (2b) It may include an inner first fixing part 3b1 and an inner second fixing part 3b2 configured in a sequentially stacked structure.
- the inner primary plywood 31b and the corner primary insulating material 32b of this embodiment may be the same as or similar to the first embodiment described above, and thus detailed descriptions are omitted to avoid overlapping descriptions. .
- the inner first fixing part 3b1 is fixed to the outer first fixing part 5b1 and provided on the inner side of the first surface
- the inner second fixing part 3b2 is fixed to the outer second fixing part 5b2 and first fixing part 5b2. It may be provided on the inner side of the two surfaces.
- the corner primary heat insulating wall 3b may include an inner bent portion 3b3 configured by filling a heat insulating material 3b35 between the inner first fixing portion 3b1 and the inner second fixing portion 3b2.
- the heat insulating material 3b35 of the inner bent portion 3b3 of the present embodiment may be the same as or similar to that of the first embodiment described above, and thus a detailed description will be omitted to avoid overlapping description.
- the corner secondary barrier 41b may be installed between the corner primary thermal insulation wall 3b and the corner secondary thermal insulation wall 5b, and when the corner blocks are arranged adjacently, the outer first and second fixing parts 5b1 and 5b2 ), the adjacent corner secondary barriers 41b may be connected by the corner connecting barriers 42b, and it is possible to prevent leakage of liquefied gas to the outside together with the corner primary barriers 2b.
- the corner secondary barrier 41b of this embodiment may have the same basic configuration as or similar to the first embodiment described above. However, in the corner secondary barrier 41b encompassing the corner connection barrier 42b of this embodiment, as some configurations of the corner secondary heat insulating wall 5b are different from the first embodiment described above, the arrangement relationship may vary. Hereinafter, it will be referred to when explaining the corner secondary heat insulating wall (5b).
- Corner secondary insulating wall (5b), the inner secondary plywood (51b), the corner secondary insulating material (52b), may be configured to include an outer secondary plywood (53b). Corner secondary insulating wall (5b) is fixed to the inside of the first side and the second side, respectively, to the outside of the corner secondary barrier (2b), the inner secondary plywood (51b), the corner secondary insulating material (52b),
- the outer secondary plywood 53b may include an outer first fixing portion 5b1 and an outer second fixing portion 5b2 configured in a sequentially stacked structure.
- the inner first fixing part 3b1 is fixed to the outer first fixing part 5b1 and provided on the inner side of the first surface
- the inner second fixing part 3b2 is fixed to the outer second fixing part 5b2 and first fixing part 5b2. It may be provided on the inner side of the two surfaces.
- corner secondary heat insulating wall (5b) is provided between the outer first fixing portion (5b1) and the outer second fixing portion (5b2), the corner secondary barrier (41b) encompassing the corner connecting barrier (42b) It may include an outer intermediate fixing part 5b12 on which the bent part is seated.
- the outer middle plywood (51b12) is located on the same line as the inner secondary plywood (51b), and may have the same configuration.
- the outer intermediate insulating material 52b12 may be a polyurethane foam.
- the inner intermediate insulating material 53b12 may be glass wool.
- the corner secondary barrier (41b) encompassing the corner connection barrier (42b) is, the inner secondary plywood (51b) of the outer first fixing part (5b1), the inner middle of the outer intermediate fixing part (5b12) Insulation material (53b12), is fixed to the inner secondary plywood (51b) of the outer second fixing part (5b2), a certain angle from the inside of the inner middle insulating material (53b12) of the outer intermediate fixing part (5b12), for example, 135 It may be provided to be bent at an angle of a degree.
- the outer intermediate fixing part 5b12 is provided between the outer first fixing part 5b1 and the outer second fixing part 5b2 fixed to the first and second surfaces at different angles, respectively.
- the flexibility of the corner secondary barrier 41b encompassing the corner connecting barrier 42b formed on the inner intermediate insulating material 53b12 of the outer intermediate fixing part 5b12 made of glass wool is improved, so that the corner connecting barrier 42b It is possible to further prevent damage to the corner secondary barrier (41b) encompassing the.
- a predetermined interval is spaced between the outer first fixing part 5b1 and the outer second fixing part 5b2 fixed to the first and second surfaces at different angles, respectively, and the outer first,
- the outer intermediate fixing portion 5b12 between the second fixing portions 5b1 and 5b2, between the outer first fixing portion 5b1 and the outer intermediate fixing portion 5b12 and between the outer second fixing portion 5b2 and the outer middle Contraction or expansion stress due to temperature in the outer fixing parts 5b1, 5b2, 5b12 having two gaps of this embodiment compared to the existing one-gap outer fixing part by the gap formed between the fixing parts 5b12, respectively. It is possible to prevent damage to the secondary corner barrier 41b encompassing the corner connecting barrier 42b fixed to the outer fixing portions 5b1, 5b2, 5b12 by (stress) relief.
- the 12 is a structural analysis result of the stress value and temperature distribution in the YY direction of the secondary barriers 4, 41b, 42b in the portion where the outer first and second fixing parts 5b1 and 5b2 face each other and are bent in the YY direction.
- the stress value was 13.101 MPa, and the temperature was -74.480°C.
- FIG. 13 is a cross-sectional view of a corner part for explaining a liquefied gas storage tank according to a sixth embodiment of the present invention
- FIG. 14 is a structural analysis result for a corner part of a liquefied gas storage tank according to a sixth embodiment of the present invention. is a diagram showing
- the planar structure of the liquefied gas storage tank 1 of this embodiment may be made of a combination of a plurality of flat blocks, as shown in FIG. 1 described above, and the corner structure of the liquefied gas storage tank 1 is shown in FIG. 13 As shown in, it may be made of a combination of a plurality of corner blocks. Such a plurality of flat blocks may be connected to a plurality of corner blocks at a corner portion of the liquefied gas storage tank (1).
- the configuration of the flat block is the same as or similar to the configuration described above with reference to FIG. 1 . That is, the flat block of the liquefied gas storage tank 1 of this embodiment is, as shown in FIG. 1, a flat portion on the first or second surface at different angles forming a storage space for accommodating the liquefied gas.
- the flat primary insulating wall 3a arranged on the outside of the flat primary barrier 2a and fixing the flat primary barrier 2a made of a metal material, and the flat primary insulating wall 3a provided on the outside of the flat primary insulating wall 3a It may include a secondary barrier (41a) and a flat secondary heat insulating wall (5a) disposed on the outside of the flat secondary barrier (41a).
- the liquefied gas storage tank 1 includes a primary barrier 2 in contact with liquefied gas, a primary insulating wall 3 installed on the outside of the primary barrier 2, It may be configured to include a secondary barrier (4) installed on the outside of the primary insulating wall (3), a secondary insulating wall (5) disposed on the outside of the secondary barrier (4).
- the liquefied gas storage tank (1) may be supported on the hull (7) by the mastic (6) installed between the secondary insulating wall (5) and the hull (7).
- the primary barrier 2 may be composed of a flat primary barrier 2a of a flat block and a corner primary barrier 2b of a corner block
- the primary insulating wall 3 is a flat primary insulating wall of a flat block.
- the corner primary insulating wall 3b of the corner block, and the secondary barrier 4 may be composed of a flat secondary barrier 41a of a flat block and a corner secondary barrier 41b of a corner block.
- the secondary thermal insulation wall 5 may be formed of a flat secondary thermal insulation wall 5a of a flat block and a corner secondary thermal insulation wall 5b of a corner block.
- the thickness of the primary insulating wall 3 and the thickness of the secondary insulating wall 5 in the flat block and the corner block may be the same or similar.
- the secondary barrier 4 of the flat block and the corner block is, when arranging a plurality of flat blocks or a plurality of corner blocks adjacent to each other, the flat secondary barriers 41a disposed adjacent to each other or adjacently disposed adjacent to each other It may include a flat connecting barrier (42a) or a corner connecting barrier (42b) for connecting the corner secondary barrier (41b).
- the corner portion of the liquefied gas storage tank 1 according to the sixth embodiment of the present invention may be made of a combination of a plurality of corner blocks.
- the corner structure of the liquefied gas storage tank 1 to be described below may be an obtuse corner structure forming an angle of a certain angle, for example, 135 degrees.
- the corner block of the liquefied gas storage tank 1 is disposed at a corner portion where the first and second surfaces of different angles forming a storage space for accommodating the liquefied gas meet, and a corner primary barrier 2b made of metal.
- a corner primary insulating wall 3b disposed on the outside of the corner primary barrier 2b
- a corner secondary barrier 41b provided on the outside of the corner primary insulating wall 3b
- a corner secondary barrier It may include a corner secondary heat insulating wall (5b) disposed on the outside of (41b).
- the corner primary barrier 2b is disposed at a corner portion where the first or second surfaces of different angles meet to form an accommodating space for accommodating liquefied gas, which is a cryogenic material, and may be made of a metal material.
- the corner primary barrier (2b) can prevent leakage of liquefied gas to the outside together with the corner secondary barrier (41b).
- the corner primary barrier 2b of the present embodiment is basically the same as or similar to the first embodiment described above, and detailed description thereof will be omitted herein.
- the corner primary insulating wall (3b) is designed to withstand an impact from the outside or an impact caused by liquefied gas sloshing from the inside while blocking heat intrusion from the outside, and the corner primary barrier (2b) and the corner secondary It may be installed between the barriers 41b.
- the outer primary plywood 33b is omitted, and the outer surface shape of the insulating material 3b31 of the inner bent portion 3b3 is similar to that of the first embodiment described above.
- Corner primary insulating wall (3b) is provided on the inner side of the first side and the second side, respectively, the inner primary plywood (31b), corner primary insulating material (32b) to the outside of the corner primary barrier (2b) It may include an inner first fixing part 3b1 and an inner second fixing part 3b2 configured in a sequentially stacked structure.
- the inner primary plywood 31b and the corner primary insulating material 32b of this embodiment may be the same as or similar to the first embodiment described above, and thus detailed descriptions are omitted to avoid overlapping descriptions. .
- the inner first fixing part 3b1 is fixed to the outer first fixing part 5b1 and provided on the inner side of the first surface
- the inner second fixing part 3b2 is fixed to the outer second fixing part 5b2 and first fixing part 5b2. It may be provided on the inner side of the two surfaces.
- the corner primary heat insulating wall 3b may include an inner bent portion 3b3 configured by filling a heat insulating material 3b36 between the inner first fixing portion 3b1 and the inner second fixing portion 3b2.
- the heat insulating material 3b36 of the inner bent portion 3b3 of this embodiment may be the same as or similar to that of the first embodiment.
- the shape of the outer surface of the insulator 3b36 of the inner bent portion 3b3 of the present embodiment may be changed as the configuration of the outer first and second fixing portions 5b1 and 5b2 is changed.
- the heat insulating material 3b36 of the inner bent portion 3b3 of the present embodiment has a chamfer formed at the corner where the outer first fixing portion 5b1 and the outer second fixing portion 5b2 face each other. It has a shape protruding outward compared to the first fixing part 3b1 or the inner second fixing part 3b2.
- the corner secondary barrier 41b may be installed between the corner primary thermal insulation wall 3b and the corner secondary thermal insulation wall 5b, and when the corner blocks are arranged adjacently, the outer first and second fixing parts 5b1 and 5b2 ), the adjacent corner secondary barriers 41b may be connected by the corner connecting barriers 42b, and it is possible to prevent leakage of liquefied gas to the outside together with the corner primary barriers 2b.
- the corner connection barrier 42b is formed to extend not only between the inner first and second fixing parts 3b1 and 3b2, but also with a length overlapping at least the inner first and second fixing parts 3b1 and 3b2. can
- the corner secondary barrier 41b of this embodiment may have the same basic configuration as or similar to the first embodiment described above. However, in the corner secondary barrier 41b encompassing the corner connection barrier 42b of this embodiment, as some configurations of the corner secondary heat insulating wall 5b are different from the first embodiment described above, the arrangement relationship may vary. Hereinafter, it will be referred to when explaining the corner secondary heat insulating wall (5b).
- Corner secondary insulating wall (5b), the inner secondary plywood (51b), the corner secondary insulating material (52b), may be configured to include an outer secondary plywood (53b). Corner secondary insulating wall (5b) is fixed to the inside of the first side and the second side, respectively, to the outside of the corner secondary barrier (2b), the inner secondary plywood (51b), the corner secondary insulating material (52b),
- the outer secondary plywood 53b may include an outer first fixing portion 5b1 and an outer second fixing portion 5b2 configured in a sequentially stacked structure.
- the outer first fixing portion 5b1 and the outer second fixing portion 5b2 may be provided so that side surfaces facing each other are inclined in the direction ED for equally dividing the corner portions.
- the corner portions are equally divided, but the present invention is not limited thereto and may not be uniform depending on the corner positions, so it goes without saying that the corner portions may be provided to be inclined in the unequal division direction ED.
- the outer first fixing part 5b1 and the outer second fixing part 5b2 may have chamfers formed at the corners facing each other.
- the inner secondary plywood (51b) is parallel to the outer secondary plywood (53b) and the peripheral plywood (51b1) fixed on the corner secondary insulating material (52b), the peripheral plywood (51b1) ) and may be composed of an inclined plywood (51b2) fixed on the corner secondary insulating material (52b) of the chamfer portion. Accordingly, unlike the first embodiment described above, the corner primary insulating material 32b is provided on the peripheral plywood 51b1, and the insulating material 3b36 of the inner bent portion 3b3 is provided on the inclined plywood 51b2.
- the inclined plywood 51b2 and the insulator 3b36 of the inner bent portion 3b3 are provided in the chamfered portion of the outer first fixing portion 5b1 and the outer second fixing portion 5b2, thereby forming the corner connecting barrier 42b. Containing corner secondary barrier (41b), the outer first fixing portion (5b1) of the peripheral plywood (51b1), the outer first fixing portion (5b1) of the inclined plywood (5b2), the outer second fixing portion (5b2) ) of the inclined plywood (5b2), it may be fixed to the peripheral plywood (51b1) of the outer second fixing portion (5b2).
- corner secondary barrier 41b encompassing the corner connection barrier 42b is bent to protrude outward to be seated on the chamfered portion of the outer first fixing part 5b1 and the outer second fixing part 5b2.
- the corner secondary barrier 41b encompassing the corner connection barrier 42b is a peripheral plywood 51b1 of the outer first fixing part 5b1 and an inclined plywood 51b2 of the outer first fixing part 5b1. ) is bent outward between, and is bent inward between the inclined plywood 51b2 of the outer first fixing part 5b1 and the inclined plywood 51b2 of the outer second fixing part 5b2, and the outer second high It may be provided to be bent outwardly between the inclined plywood (51b2) of the top (5b2) and the peripheral plywood (51b1) of the outer second fixing part (5b2).
- a chamfer is formed at the corner where the outer first fixing part 5b1 and the outer second fixing part 5b2 fixed to the first and second surfaces at different angles face each other, and the chamfer is formed.
- the corner secondary barrier (41b) is bent outwardly protruding and the length of the non-adhesive part to the corner secondary insulating wall (5b) increases, and the corner secondary barrier (41b) covering the corner connecting barrier (42b) flexibility (flexibility) ) not only can further lower the damage probability of the corner secondary barrier 41b encompassing the corner connecting barrier 42b due to the increase, but also reduce the corner secondary barrier 41b encompassing the corner connecting barrier 42b. Absorption is facilitated, and low temperature stress can be further reduced.
- the 14 is a structural analysis result of the stress values and temperature distributions in the YY direction of the secondary barriers 4, 41b, 42b in the portion where the outer first and second fixing parts 5b1 and 5b2 face each other and are bent in the YY direction.
- the stress value was 7.197 MPa, and the temperature was -53.710°C.
- FIG. 15 is a cross-sectional view of a corner part for explaining a liquefied gas storage tank according to a seventh embodiment of the present invention
- FIG. 16 is a structural analysis result for a corner part of a liquefied gas storage tank according to a seventh embodiment of the present invention. is a diagram showing
- the liquefied gas storage tank 1 of this embodiment is the same as compared to the liquefied gas storage tank 1 of the first embodiment, except for the configuration of the inner bending part 3b3.
- they may be similar, and accordingly, detailed descriptions of the same components will be omitted to avoid overlapping descriptions, and different configurations will be mainly described.
- the configuration of the corner primary heat insulating wall 3b of this embodiment is the same as that of the first embodiment, except that the configuration of the portion where the inner bent portion 3b3 configured by filling the insulating material 3b31 is different is different than in the first embodiment described above. Although similar, a different configuration will be mainly described herein.
- the corner primary heat insulating wall 3b of this embodiment may include a vacuum insulation panel 3b37 filled in the inner bent part 3b3 between the inner first fixing part 3b1 and the inner second fixing part 3b2. have.
- the structural member between the inner first fixing part 3b1 and the inner second fixing part 3b2 is Construction of the vacuum insulation panel (3b37) is easy.
- the vacuum insulation panel 3b37 has excellent insulation performance among various insulation materials such as polyurethane foam, and thus can improve insulation performance in a corner portion.
- 16 is a structural analysis result of the stress values and temperature distributions in the YY direction of the secondary barriers 4, 41b, 42b in the portion where the outer first and second fixing parts 5b1 and 5b2 face each other and are bent in the YY direction.
- the stress value was 12.084 MPa, and the temperature was -59.025°C.
- 17 is a partial front view of a corner portion for explaining a liquefied gas storage tank according to an eighth embodiment of the present invention.
- the planar structure of the liquefied gas storage tank 1 of this embodiment may be made of a combination of a plurality of flat blocks, as shown in FIG. 1 above, and the corner structure of the liquefied gas storage tank 1 is shown in FIG. 17 As shown in, it may be made of a combination of a plurality of corner blocks. Such a plurality of flat blocks may be connected to a plurality of corner blocks at a corner portion of the liquefied gas storage tank (1).
- the configuration of the flat block is the same as or similar to the configuration described above with reference to FIG. 1 . That is, the flat block of the liquefied gas storage tank 1 of this embodiment is, as shown in FIG. 1, a flat portion on the first or second surface at different angles forming a storage space for accommodating the liquefied gas.
- the flat primary insulating wall 3a arranged on the outside of the flat primary barrier 2a and fixing the flat primary barrier 2a made of a metal material, and the flat primary insulating wall 3a provided on the outside of the flat primary insulating wall 3a It may include a secondary barrier (41a) and a flat secondary heat insulating wall (5a) disposed on the outside of the flat secondary barrier (41a).
- the liquefied gas storage tank (1), the primary barrier (2) in contact with the liquefied gas, the primary insulating wall (3) installed on the outside of the primary barrier (2) It may be configured to include a secondary barrier (4) installed on the outside of the primary insulating wall (3), a secondary insulating wall (5) disposed on the outside of the secondary barrier (4).
- the liquefied gas storage tank (1) may be supported on the hull (7) by the mastic (6) installed between the secondary insulating wall (5) and the hull (7).
- the primary barrier 2 may be composed of a flat primary barrier 2a of a flat block and a corner primary barrier 2b of a corner block
- the primary insulating wall 3 is a flat primary insulating wall of a flat block.
- the corner primary insulating wall 3b of the corner block, and the secondary barrier 4 may be composed of a flat secondary barrier 41a of a flat block and a corner secondary barrier 41b of a corner block.
- the secondary thermal insulation wall 5 may be formed of a flat secondary thermal insulation wall 5a of a flat block and a corner secondary thermal insulation wall 5b of a corner block.
- the thickness of the primary insulating wall 3 and the thickness of the secondary insulating wall 5 in the flat block and the corner block may be the same or similar.
- the secondary barrier 4 of the flat block and the corner block is, when arranging a plurality of flat blocks or a plurality of corner blocks adjacent to each other, the flat secondary barriers 41a disposed adjacent to each other or adjacently disposed adjacent to each other It may include a flat connecting barrier (42a) or a corner connecting barrier (42b) for connecting the corner secondary barrier (41b).
- the corner portion of the liquefied gas storage tank 1 according to the eighth embodiment of the present invention may be made of a combination of a plurality of corner blocks.
- the corner block of the liquefied gas storage tank 1 is disposed at a corner portion where the first and second surfaces of different angles forming a storage space for accommodating the liquefied gas meet, and a corner primary barrier 2b made of metal.
- a corner primary insulating wall 3b disposed on the outside of the corner primary barrier 2b
- a corner secondary barrier 41b provided on the outside of the corner primary insulating wall 3b
- a corner secondary barrier It may include a corner secondary heat insulating wall (5b) disposed on the outside of (41b).
- the corner primary barrier 2b is disposed at a corner portion where the first or second surfaces of different angles meet to form an accommodating space for accommodating liquefied gas, which is a cryogenic material, and may be made of a metal material.
- the corner primary barrier (2b) can prevent leakage of liquefied gas to the outside together with the corner secondary barrier (41b).
- the corner primary barrier 2b of the present embodiment is basically the same as or similar to the first embodiment described above, and detailed description thereof will be omitted herein.
- the corner primary barrier (2b) may be fixed to the barrier fixing member (21b).
- the barrier fixing member 21b is a metal material and may be installed on top of the corner primary heat insulating wall 3b.
- a plurality of corner secondary thermal insulation walls 5b may be disposed along the side of the corner portion, and accordingly, the barrier fixing member 21b is provided in each of the plurality of corner primary thermal insulation walls 3b. Can be installed independently.
- the corner primary insulating wall (3b) is designed to withstand an impact from the outside or an impact caused by liquefied gas sloshing from the inside while blocking heat intrusion from the outside, and the corner primary barrier (2b) and the corner secondary It may be installed between the barriers 41b.
- Corner primary insulating wall (3b) is provided on the inner side of the first and second surfaces, respectively, the corner primary insulating material (32b) fixed to the corner secondary barrier (41b), and the corner primary insulating material (32b) It may include an inner primary plywood (31b) disposed on the inside and forming a step with the corner primary insulating material (32b) and to which the corner primary barrier (2b) is fixed.
- the corner primary insulating wall 3b in which the inner primary plywood 31b and the corner primary insulating material 32b are sequentially stacked may be arranged in plurality along the side of the corner part on the corner secondary insulating wall 5b. .
- the corner primary insulating wall (3b) is described as being composed of the inner primary plywood (31b) and the corner primary insulating material (32b), but at least any one of the above-described first to seventh embodiments Of course, it may be the same as or similar to the corner primary heat insulating wall 3b according to the embodiment.
- the plurality of corner primary insulating walls 3b are disposed adjacent to each other on the corner secondary insulating walls 5b, so that filling of a separate insulating material such as glass wool between the plurality of corner primary insulating walls 3b is omitted. , it can be arranged to minimize the gap between the plurality of corner primary insulating walls (3b).
- corner primary insulating walls 3b When a plurality of corner primary insulating walls 3b are arranged in this way, a stepped space is created between the corner primary insulating material 32b and the inner primary plywood 31b forming a step.
- the corner block of this embodiment is filled in the step space of the corner primary insulating walls 3b disposed adjacent to each other and includes an inner first packing material 3b4 on which the corner primary barriers 2b are seated.
- the inner first packing material 3b4 may be polyurethane foam or glass wool.
- the plurality of corner primary thermal insulation walls 3b are a part of a corner block together with the corner secondary barriers 41b and the corner secondary thermal insulation walls 5b.
- the width may be smaller than the width of the corner secondary heat insulating wall 5b, which is another configuration of the corner block. Due to this, a portion of the corner secondary barrier 41b may be exposed to the outermost side of the plurality of corner primary heat insulating walls 3b.
- a corner connection insulating wall 34b may be installed.
- the corner connecting insulating wall 34b is disposed between the neighboring outermost corner primary insulating walls 3b when the corner blocks are arranged adjacent to each other, and the same or similar corner connecting insulating material as the corner primary insulating wall 3b ( 341b) and the corner connecting plywood (342b) may be provided in a stacked form, and have the same or similar thickness as the corner primary insulating wall (3b).
- Such a corner connection insulating wall 34b when arranging a plurality of corner blocks adjacent to each other along the side of the corner portion, forms a space between the corner secondary thermal insulation walls 5b disposed adjacent to each other as a corner connection barrier 42b. It is installed to block heat intrusion from the outside while sealing it together.
- the inner second packing material 3b5 may be polyurethane foam or glass wool.
- Corner secondary barrier (41b) can be installed between the corner primary insulating wall (3b) and corner secondary insulating wall (5b), together with the corner primary barrier (2b) to prevent leakage of liquefied gas to the outside can
- the corner secondary barrier 41b is a part of a corner block together with the corner primary thermal insulation wall 3b and the corner secondary thermal insulation wall 5b. When the corner blocks are arranged adjacently, the neighboring corner secondary barrier 41b may be sealingly connected through the corner connection barrier 42b.
- the corner connecting barrier 42b may connect the neighboring corner secondary barriers 41b exposed to the outside when the corner blocks are arranged adjacently, and the corner connecting heat insulating wall 34b may be installed thereon.
- Corner secondary insulating wall (5b), the inner secondary plywood (51b), the corner secondary insulating material (52b), may be configured to include an outer secondary plywood (53b). Corner secondary insulating wall (5b) is fixed to the inside of the first side and the second side, respectively, to the outside of the corner secondary barrier (2b), the inner secondary plywood (51b), the corner secondary insulating material (52b), The outer secondary plywood (53b) may be configured in a sequentially stacked structure.
- a space generated between the adjacent corner secondary heat insulating walls 5b may be filled with the outer packing material 5b4.
- the outer packing material 5b4 may be polyurethane foam or glass wool.
- the corner secondary thermal insulation wall 5b of this embodiment may be the same or similar to the corner secondary thermal insulation wall 5b according to at least any one of the first to seventh embodiments described above, and here Specific descriptions are omitted to avoid duplicate descriptions.
- the corner primary insulating wall 3b including the inner primary plywood 31b forming a step with the corner primary insulating material 32b is arranged in plurality on the corner secondary insulating wall 5b.
- FIG. 18 is a partial front view of a corner part for explaining a liquefied gas storage tank according to a ninth embodiment of the present invention
- FIG. 19 is a perspective view for explaining the upper block of FIG. 18, and
- FIG. 20 is the upper connection of FIG. It is a perspective view for explaining the block
- FIG. 21 is an exploded perspective view of the upper block of FIG. 19
- FIG. 22 is a cross-sectional view of the upper block of FIG. 19
- FIG. 23 is a cross-sectional view showing another embodiment of the upper block of FIG.
- Fig. 24 is a perspective view for explaining the stuffing piece of Fig. 18,
- Fig. 25 is a view for explaining a bonding prevention member applied to the upper connection block of Fig. 18, and
- Fig. 26 is applied to the upper connection block of Fig. 18 It is a view for explaining another embodiment of the bonding prevention member.
- FIGS. 27 (a) and (b) are views for explaining another embodiment of the upper block and the upper connection block of FIG. 18, and FIG. 28 is a corner portion to which the upper block and the upper connection block of FIG. 27 are applied. It is a partially enlarged front view, and FIGS. 29 (a) and (b) are views for explaining another embodiment of the upper block and the upper connection block of FIG. 18, and FIG. 30 is the upper block and the upper connection block of FIG. It is a partially enlarged front view of the applied corner part.
- FIGS. 31 (a) and (b) are views showing the structural analysis results for each of the barrier fixing member of this embodiment without the stiffener and the barrier fixing member of the comparative example having the stiffener, respectively, in FIG. (a) and (b) are diagrams showing the structural analysis results for the component (plywood) provided under each of the barrier fixing member of this embodiment without the stiffener and the barrier fixing member of the comparative example with the stiffener provided to be.
- the corner portion of the liquefied gas storage tank 100 may be made of a combination of a plurality of corner blocks (CB).
- the primary structure of the corner block CB is a lower block LB fixed to the hull 7 and made of a single board, and a plurality of upper blocks bonded on the lower block LB ( UB) and an upper connection block UBB that connects the adjacent lower blocks LB.
- the corner block CB of this embodiment is a corner portion where the first and second surfaces of different angles meet to form a storage space for accommodating liquefied gas, as in the first to eighth embodiments described above.
- a corner primary barrier 2b made of a metal material is formed on the upper block UB and the upper connection block UBB as described above in a state in which the corner block CB is disposed. This completes the corner portion of the liquefied gas storage tank 100 having an accommodating space for sealingly accommodating liquefied gas, which is a cryogenic material.
- the liquefied gas storage tank 100 of this embodiment is completed by connecting the corner block CB formed in the corner portion and the flat block formed in the flat portion, where the flat block is the diagram of the first embodiment described above. It may be the flat block shown in 1 or the flat block FB shown in FIG. 33 of the tenth embodiment to be described later, but is not limited thereto.
- corner block CB of this embodiment will be described in detail below by dividing it into a lower block LB, an upper block UB, and an upper connection block UBB, but the present invention is not limited thereto. Of course, it may be the same as or similar to the structure of any one of the eighth embodiments.
- the lower block LB as shown in FIG. 18, a plurality of upper blocks UB and upper connection blocks UBB may be installed on the upper surface, and a corner 2 that is bonded to the lower surface of the upper block UB.
- the barrier wall 41b and the lower block LB are disposed adjacent to each other, the upper block UB is not installed and the adjacent corner secondary barrier 41b exposed to the outside is connected, and the lower surface of the upper connection block UBB
- a corner connection barrier (42b) bonded to the corner, the inner secondary plywood (51b), the corner secondary insulation material (52b), the corner secondary insulation wall (5b) comprising the outer secondary plywood (53b) can be done
- the sub-block LB of this embodiment may be the same as or similar to the configuration according to at least one of the first to eighth embodiments described above, and detailed description is provided here to avoid overlapping description. omit
- the plurality of upper blocks UB may be bonded to the lower blocks LB.
- Each of the plurality of upper blocks UB secures a corner primary barrier 2b made of a metal material, and a barrier disposed on the outside of the corner primary barrier 2b It has a basic structure consisting of a fixing member (21b) and a corner primary heat insulating wall (3b) disposed on the outside of the barrier fixing member (21b).
- the corner primary heat insulating wall (3b) may further include an inner bent portion (3b3).
- the upper block UB having a basic structure may be arranged in parallel with a predetermined gap and bonded to the lower block LB, and in this embodiment, as shown in FIG. They may be arranged side by side, but the present invention is not limited thereto.
- the barrier fixing member 21b is a metal material and may be installed on the top of the corner primary heat insulating wall 3b, and is bent at a predetermined angle on the inside of the first side and the second side, for example, to accommodate liquefied gas It may be bent at the same angle as the angle formed by the first surface and the second surface at different angles forming the storage space.
- a plurality of corner secondary thermal insulation walls 5b constituting the lower block LB may be disposed along the side of the corner portion forming a right or obtuse angle, and thus the barrier fixing member 21b) may be bent at a right angle or an obtuse angle to be independently installed on each of the plurality of corner primary insulating walls 3b.
- the barrier fixing member 21b may be installed on the upper portion of the corner primary heat insulating wall 3b using a plurality of coupling members 21b1 provided on the rear surface.
- the coupling member 21b1 may include a stud bolt and a nut.
- the barrier fixing member 21b of this embodiment is not provided with a reinforcing member holding the upper portion of the corner primary heat insulating wall 3b on the rear surface.
- the stiffener 122b As a reinforcing member for holding the upper portion of the corner primary insulating wall 3b, as shown in FIG. 31(b), there is a stiffener 122b. That is, the general barrier fixing member 121b is provided with a stiffener 122b along the edge of the rear surface as a reinforcing member.
- the stiffener 122b has a concept of firmly fixing the upper block UB.
- the general barrier fixing member 121b provided with the stiffener 122b is vulnerable to stress when an external force such as a behavior or thermal load is applied in a portion bent at a right angle or an obtuse angle. there was.
- the barrier fixing member 21b of this embodiment is to be coupled to the upper surface of the corner primary insulating wall 3b in a plane-to-plane plane without a reinforcement member such as a stiffener 122b on the rear surface to solve this problem, and structural analysis The results were also confirmed.
- Figure 31 (a) shows a barrier fixing member 21b that is not equipped with a stiffener 122b in the liquefied gas storage tank 100 of this embodiment when an external force such as a behavior or a thermal load is applied due to the behavior of the hull. ) is a view showing the structural analysis results for ), and (b) of FIG. 31 is a stiffener 122b in the liquefied gas storage tank 100a of the comparative example when an external force such as a behavior by the hull behavior or a thermal load is applied.
- FIG. 1 is a view showing the structural analysis results for a general barrier fixing member 121b provided with, compared to the structural analysis results, when the stiffener 122b is present (comparative example) rather than when there is no (this embodiment) flexibly to external force In response, it was found that the stress was evenly distributed in the part bent at a right angle or an obtuse angle.
- FIG. 32 (a) is a barrier fixing member 21b that is not provided with a stiffener 122b in the liquefied gas storage tank 100 of this embodiment when an external force such as a behavior or a thermal load is applied due to the behavior of the hull.
- ) is a view showing the results of structural analysis for the components (plywood) provided below the As a view showing the structural analysis result for the component (plywood) provided on the lower side of the general barrier fixing member 121b provided with the stiffener 122b in the storage tank 100a, it is bent at a right angle or an obtuse angle compared to the structural analysis result It can be seen that the pressure acting on the components connected to the lower side is also evenly distributed at a low value because the bending of the bent part is also reduced due to the stress evenly distributed in the bent part.
- the present embodiment does not include a reinforcing member such as a stiffener 122b on the rear surface of the barrier fixing member 21b, so that the weight of the barrier fixing member 21b itself can be reduced, and the attachment of the reinforcing member can be reduced.
- a reinforcing member such as a stiffener 122b on the rear surface of the barrier fixing member 21b
- the weight of the barrier fixing member 21b itself can be reduced, and the attachment of the reinforcing member can be reduced.
- the corner primary insulating wall 3b is designed to withstand an impact from the outside or an impact caused by liquefied gas sloshing from the inside while blocking heat intrusion from the outside, and the barrier fixing member 21b and the lower block LB ) may be installed between the corner secondary barriers 41b.
- Corner primary thermal insulation wall (3b) is provided on the inner side of the first and second surfaces, respectively, to the outside of the barrier fixing member (21b), the inner primary plywood (31b), the corner primary insulating material (32b), the outer side
- the primary plywood 33b may include an inner first fixing portion 3b1 and an inner second fixing portion 3b2 configured in a sequentially stacked structure.
- corner primary heat insulating wall 3b may include an inner bent portion 3b3 made of a heat insulating material in a space portion between the inner first fixing portion 3b1 and the inner second fixing portion 3b2.
- the corner primary thermal insulation wall 3b of the present embodiment may be the same as or similar to the corner primary thermal insulation wall 3b of the first embodiment described above, and detailed description thereof will be omitted here to avoid overlapping description.
- the inner primary plywood 31b is installed on the inner upper surface of the corner primary insulating material 32b, and is installed to form a step with the corner primary insulating material 32b.
- the adjacent corner primary insulating material (32b) is arranged adjacently, and a step space between the neighboring inner primary plywood (31b) this will arise
- a separate insulating material filling may be omitted between the corner primary insulating materials 32b disposed adjacent to each other.
- the filling of the insulating material between the corner primary insulating materials 32b is omitted, it is of course possible to construct the insulating material between the corner primary insulating materials 32b.
- the upper connection block UBB may be bonded to the upper surface of the adjacent lower blocks LB to connect the lower blocks LB.
- the upper connection block (UBB), as shown in FIGS. 18 and 20, fixes the corner primary barrier (2b) made of a metal material and is disposed on the outside of the corner primary barrier (2b) barrier fixing member (21b) And, it may be made of a corner connection insulating wall (34b) disposed on the outside of the barrier fixing member (21b).
- the corner connection insulating wall 34b may further include a corner connection bent portion 34b3.
- the barrier fixing member 21b of the upper connection block UBB may be the same or similar to the barrier fixing member 21b of the above-described upper block UB, and detailed description is omitted here to avoid overlapping description. .
- the corner connection insulation wall 34b of the upper connection block (UBB) withstands an impact from the outside or liquefied gas sloshing from the inside while blocking heat intrusion from the outside together with the corner primary insulation wall 3b. It is designed to be able to, and may be installed between the barrier fixing member 21b and the corner connection barrier 42b of the lower block LB.
- corner connection insulating walls (34b) are provided on the inside of the first side and the second side, respectively, the corner first connection plywood (342b), the corner connection insulating material (341b) to the outside of the barrier fixing member (21b),
- the corner second connection plywood 343b may include a corner first connection fixing part 34b1 and a corner second connection fixing part 34b2 configured in a sequentially stacked structure.
- corner connection insulating wall 34b may include a corner connection bent part 34b3 made of a heat insulating material in a space portion between the corner first connection fixing part 34b1 and the corner second connection fixing part 34b2.
- the corner connecting bent portion 34b3 may be formed of the same or similar material as the inner bent portion 3b3, for example, low-density polyurethane foam or glass wool.
- the corner connection insulating wall 34b compared with the above-mentioned corner primary insulating wall 3b, only different reference numerals, and may be the same or similar in construction, here the redundant description is given In order to avoid it, a detailed description is omitted.
- the corner first connecting plywood (342b) is installed on the inner upper surface of the corner connecting insulating material (34b), and is installed to form a step with the corner connecting insulating material (34b).
- the corner connection insulating material 341b of the upper connection block UBB and the upper block UB ) of the corner primary insulating material (32b) is arranged adjacently, a step space between the corner first connection plywood (342b) of the upper connection block (UBB) and the inner primary plywood (31b) of the upper block (UB) this will arise
- a separate insulating material filling may be omitted.
- the insulating material filling is omitted between the corner primary insulation material 32b of the upper block UB and the corner connection insulation material 341b of the upper connection block UBB, but the corner 1 of the upper block UB It goes without saying that the insulating material may be installed between the insulating material 32b and the corner connection insulating material 341b of the upper connection block UBB.
- the step space generated between the corner first connecting plywood (342b) and the inner primary plywood (31b) is, as shown in FIG. 24, a stuffing piece (10) is inserted.
- the stuffing piece 10 is, as shown in FIGS. 18 and 24, the first step space generated between the inner primary plywood 31b of the neighboring upper block UB, as well as the inner side of the upper block UB. It is also inserted into the second step space generated between the corner first connection plywood 342b of the primary plywood 31b and the upper connection block UBB, and the gap between the neighboring upper blocks UB and the upper block UB ) and the upper connecting block (UBB), as well as making it possible to maintain a constant gap, the inner bent portion (3b3) of the upper block (UB) and the corner connecting bent portion (34b3) of the upper connecting block (UBB) to be fixed, and to facilitate handling when working with the upper block (UB).
- the stiffener 122b when the stiffener 122b is provided along the edge of the rear surface like the general barrier fixing member 121b, the stiffener 122b fixes the inner bent part 3b3 or the corner connection bent part 34b3.
- the stiffener 122b since the stiffener 122b is not provided, a separate fixing means for fixing the inner bent portion 3b3 or the corner connecting bent portion 34b3 is required. (10) will serve as a fixing means.
- the stuffing piece 10 may be formed of the same or similar material as the inner bent portion 3b3 or the corner connecting bent portion 34b3, for example, low-density polyurethane foam, and corresponding to the first and second step spaces. It may include a body 11 having a shape, and an end 12 that is inserted into the inner bent part 3b3 or the corner connection bent part 34b3 after the body 11 is inserted into the first and second step spaces.
- the end 12 may be formed in a wedge shape so as to be easily embedded in the inner bent portion 3b3 or the corner connecting bent portion 34b3.
- an adhesive (not shown) may be applied to the end portion 12 so as to stably fix the inner bent portion 3b3 or the corner connecting bent portion 34b3.
- the outer primary plywood (33b) having a plurality of first holes (81) is bonded to the outer surface of the corner primary insulating material (32b) having a plurality of second holes (82),
- the inner primary plywood (31b) having a plurality of third holes (83) is bonded to the inner surface of the corner primary insulating material (32b) having a plurality of second holes (82).
- the first, second, and third holes 81 , 82 , 83 may be formed on an extension line of a position corresponding to each of the plurality of coupling members 21b1 provided in the barrier fixing member 21b.
- the first and second holes (81, 82) have the same size, and have a hole shape in which the outer primary plywood (33b) and the corner primary insulating material (32b) are connected by bonding, and the form in these communication holes
- the plug 9 may be sealed by being inserted, and the third hole 83 may be formed to a size into which the coupling member 21b1 can be inserted.
- the barrier fixing member 21b is the inner primary plywood 31b. ) to be fixed on the upper surface of the
- the foam plug 9 is formed in the communication hole formed by the plurality of first and second holes 81 and 82. ) is inserted.
- the foam plug 9 has a size corresponding to the communication hole, and may be of the same or similar material to the corner primary insulating material 32b.
- the outer primary plywood (33b), the corner primary insulating material (32b), the inner primary plywood (31b) is formed by a bonding structure, the inner first fixing portion (3b1) and the inner second fixing portion
- the assembly process of the upper block UB is completed by inserting the inner bent portion 3b3 into the space between the 3b2.
- the upper block UB of this embodiment has an outer primary plywood 33b having a plurality of first holes 81, and a corner primary insulating material 32b having a plurality of second holes 82. ) and the inner primary plywood 31b having a plurality of third holes 83 are first bonded by bonding, and then the barrier fixing member 21b has a structure that can be bolted.
- the upper connection block UBB that is structurally the same or similar to the upper block UB may also be assembled by the same or similar assembly process. Accordingly, in the present embodiment, the configuration of the upper block UB may be used to include the configuration of the upper connection block UBB.
- a plurality of first holes 81 are formed in the outer primary plywood 33b, and a plurality of second holes 82 are formed in the corner primary insulating material 32b.
- first and second holes 81 and 82 formed in each of the outer primary plywood 33b and the corner primary insulating material 32b may be removed, which will be described with reference to FIG. 23 .
- the upper block (UB) of another embodiment the above-mentioned first and second holes (81, 82) in each of the outer primary plywood (33b) and the corner primary insulating material (32b) are omitted.
- the primary assembly process is a barrier fixing member ( 21b), and bolting the coupling member (21b1) so that the barrier fixing member (21b) is fixed to the upper surface of the inner primary plywood (31b).
- the outer primary plywood (33b), the corner primary insulating material (32b), the inner primary plywood (31b) is formed by a bonding structure, the inner first fixing portion (3b1) and the inner second fixing portion
- the assembly process of the upper block UB is completed by inserting the inner bent portion 3b3 into the space between the 3b2.
- the upper block (UB) of another embodiment assembled in this way is separate first and second holes (81, 82) processing and foam plugs in each of the outer primary plywood (33b) and the corner primary insulating material (32b) ( 9) can also be omitted, and since the first and second holes 81 and 82 can be deleted, not only is it advantageous to maintaining thermal insulation, but also the strength is stronger, in addition to this, the upper block UB of another embodiment When bonding to the lower block LB, it is possible to fill the glueing lost due to the first and second holes 81 and 82 in the process of gluing to the lower part of the upper block UB of another embodiment, which can be advantageous for adhesive strength. have.
- the plurality of upper blocks (UB) are bonded to overlap the upper surface of each of the neighboring lower blocks (LB) in a state in which the lower blocks (LB) bonded to the upper surface are arranged adjacent to each other. It may be coupled to connect between the lower blocks LB.
- the adhesive 20 is applied to the upper surface of the corner connection barrier 42b of the portion corresponding to the corner second connection plywood 343b, and is bonded by pressing.
- the adhesive 20 is pressed to squeeze out to a certain extent, and the corner second connection plywood (343b) of the bonding area is pressed. The entire contact surface is bonded to the corner connecting barrier (42b).
- the adhesive 20 coming out of the non-bonding area which is a non-bonding area where the adhesive 20 should not be bonded, comes out to the exposed surfaces of the corner connection bent portion 34b3 and the corner connection insulation material 341b, respectively, and is connected to the corner. Since the corner primary insulating material 32b of the upper block UB adjacent to the bent portion 34b3 and the corner connecting barrier 42b or the corner connecting insulating material 341b can be bonded, the non-bonding area escaped from the site of occurrence. An additional operation such as scraping off the adhesive 20 must be performed.
- the gap between the corner connecting insulating material 341b of the upper connecting block UBB and the corner primary insulating material 32b of the upper block UB is visually adhesive 20 ) is so narrow that it cannot be confirmed that it has escaped, and it is difficult to scrape the adhesive 20 that has escaped through the gap.
- the adhesive 20 is a non-bonding area at the time of bonding of the upper connection block (UBB), the corner connection bent part 34b3 and the corner connection insulation material ( 341b) Prevent escape to each exposed surface, or even if it escapes, the corner connecting bent portion 34b3 and the corner connecting barrier 42b or the corner connecting insulating material 341b and the adjacent upper block (UB) corner primary insulation ( 32b) further includes a bonding prevention member 30 that can prevent bonding.
- the bonding prevention member 30 may be formed of a film made of a sponge material.
- the bonding preventing member 30, as shown in FIG. 25, may be installed on each exposed surface of the corner connection bent portion 34b3 and the corner connection insulation material 341b, which are non-bonding areas in the upper connection block UBB. .
- the bonding preventing member 30 is a corner connecting barrier 42b of the lower block LB to which the corner connecting bent portion 34b3, which is a non-bonding area of the upper connecting block UBB, is in contact with, as shown in FIG. 26 .
- the inner bent portion 3b3 of the upper block UB adjacent to the corner connecting insulating material 341b, which is a non-bonding area of the upper connecting block UBB, and the exposed surface of each of the corner primary insulating materials 32b can be installed on
- the upper block UB of this embodiment is arranged in parallel with a predetermined gap and bonded to the upper surface of the lower block LB.
- This upper block (UB) since the outer primary plywood (33b) is combined with the lower block (LB) by bonding to the lower block (LB), the adhesive 20 corresponds to the outer primary plywood (33b) In a state of being coated on the upper surface of the corner secondary barrier (41b) of the portion to be pressed, bonding is performed.
- the adhesive 20 is pressed to squeeze out to a certain extent, and the entire contact surface of the outer primary plywood 33b, which is the bonding area, is is bonded to the corner secondary barrier (41b).
- the upper connection block UBB of this embodiment is disposed adjacent to a lower block LB in which a plurality of upper blocks UB are bonded to the upper surface.
- the lower blocks LB may be connected to each other by bonding to overlap the upper surfaces of each of the neighboring lower blocks LB.
- This upper connection block (UBB), the corner second connection plywood (343b) is combined with the lower block (LB) by bonding to the lower block (LB), the adhesive 20, the corner second connection plywood (343b) ) is applied to the upper surface of the corner connection barrier 42b of the corresponding portion, and is bonded by pressing.
- the adhesive 20 is pressed to squeeze out to a certain extent, and the corner second connection plywood (343b) which is the bonding area as much as possible. ) so that the entire contact surface is bonded to the corner connection barrier (42b).
- the gap between the corner primary insulating material 32b of the upper block UB and the corner primary insulating material 32b of the neighboring upper block UB, as well as the corner connecting insulating material of the upper connecting block UBB The gap between the 341b and the corner primary insulating material 32b of the upper block UB is narrow enough that it cannot be confirmed that the adhesive 20 has come out with the naked eye, and it is not possible to check the squeeze out (squeeze out). That is, when bonding the upper block UB and the upper connection block UBB to the lower block LB, it is not possible to confirm sufficient application of the adhesive 20, and the upper block UB and the lower block LB are insufficient due to the lack of adhesion area. ) or between the upper connection block UBB and the lower block LB, or the neighboring blocks UB and UBB are bonded, and bonding defects may occur.
- the squeeze-out confirmation means as shown in (a) of FIG. 27, the chamfers (CF) provided at both ends of the outer primary plywood (33b) of the upper block (UB), ( As shown in b), it may be a chamfer CF provided at both ends of the corner second connection plywood 343b of the upper connection block UBB. 28, when the upper block UB and the upper connection block UBB are disposed on the lower block LB, the upper block UB and the adjacent upper block ( UB) and between the upper block UB and the adjacent upper connection block UBB to form a space so that the adhesive 20 is squeezed out from the front and the like.
- the squeeze out confirmation means as shown in (a) of Figure 29, the groove (GV) provided adjacent to both edges of the outer primary plywood (33b) of the upper block (UB), Figure 29
- the corner of the upper connection block (UBB) may be a groove (GV) provided adjacent to both edges of the second connection plywood (343b).
- the groove GV is, as shown in FIG. 30 , in a state in which the plurality of upper blocks UB and the upper connection blocks UBB are disposed on the lower block LB, and the upper block UB and the upper connection block are disposed on the lower block LB. It is possible to confirm that the adhesive 20 is squeezed out from the block UBB from the front and the like.
- the upper block (UB) and the upper connection block (UBB), which are the lower layers of the outer primary plywood (33b) and the corner second connection plywood (343b), are chamfered as a squeeze-out confirmation means, respectively.
- CF) or groove (GV) shape the weight of each of the upper block (UB) and the upper connection block (UBB) can be reduced, and the adhesive ( After applying 20), the squished adhesive 20 can be directly checked with the naked eye, thereby increasing the stability of the system.
- the squeeze-out confirmation means of chamfer (CF) and groove (GV) the amount of the applied adhesive 20 can be increased when the chamfer (CF) shape is applied than when the groove (GV) shape is applied. Adhesion can be increased.
- FIG 33 is a view for explaining a liquefied gas storage tank according to a tenth embodiment of the present invention.
- the liquefied gas storage tank 200 after installing a corner block (CB) in a corner portion and installing a flat block (FB) in a flat portion, Filling in the gap generated at the contact point between the corner block (CB) and the flat block (FB) with an insulating material due to tank hull and block installation tolerances.
- the liquefied gas storage tank 100 has a flat block (FB) installed in a corner portion, a flat block (FB) installed in a flat portion, and a corner block (CB) by a tank hull and block installation tolerance and a block connection system 40 installed in a gap generated at a portion in contact with the flat block FB.
- FB flat block
- FB flat block
- CB corner block
- the flat block FB fixes the flat primary barrier 2a made of metal and is disposed on the outside of the flat primary barrier 2a, the flat primary thermal insulation wall 3a, and the flat primary thermal insulation wall 3a. It consists of a flat secondary barrier (41a) provided in the, and a flat secondary insulating wall (5a) disposed on the outside of the flat secondary barrier (41a) and installed in the hull (7), the first surface at different angles or It may be disposed on a flat portion on the second surface to form a storage space for accommodating the liquefied gas together with the corner block (CB).
- planar block FB may have the same or similar structure to the planar block of the first embodiment described above, but is not limited thereto, and may have a structure of another known planar block.
- the corner block (CB) fixes the corner primary barrier (2b) made of a metal material and is disposed on the outside of the corner primary barrier (2b).
- the corner block CB may have the same or similar structure to the corner blocks of the first to ninth embodiments described above, but is not limited thereto, and may have a structure of another already known corner block. to be.
- the block connection system 40 is installed in the gap between the flat secondary thermal insulation wall 5a of the flat block FB and the corner secondary thermal insulation wall 5b of the corner block CB, and the flat block FB and the corner block ( CB) may be connected, and may include a flow path member 41 , a block buffer member 42 , and a block connection member 43 .
- the flow path member 41 may be installed at the bottom of the gap so that the first space between the flat block FB and the hull 7 and the second space between the corner block CB and the hull 7 communicate with each other, , a liquid flow path such as condensate or a nitrogen gas circulation path (N 2 Gas Circulation) may be provided.
- a liquid flow path such as condensate or a nitrogen gas circulation path (N 2 Gas Circulation) may be provided.
- the block connecting member 43 of this embodiment is formed by an automatic spray method using the spray device 50 , so if there is no flow path member 41 , the block connecting member 43 is Blocks between the first space under the flat block FB and the second space under the corner block CB, such as condensed water flowing under each of the flat block FB and the corner block CB. A problem arises in which the flow path of the liquid or nitrogen gas is blocked.
- the flow path member 41 of this embodiment may be formed of a mesh-type melamine foam, but is not limited thereto, and may include a member formed of another member through which a gas or liquid can pass. .
- the block buffer member 42 may be installed on the side surface of the flat block FB constituting one side of the gap by line construction.
- the block buffer member 42 is made of a soft insulating material thinly so as to relieve stress generated between the flat block FB and the corner block CB by external force caused by the hull behavior or stress caused by thermal relaxation/contraction.
- the soft insulating material forming the block buffer member 42 may be, for example, low-density polyurethane foam or glass wool. That is, the block buffer member 42 formed of a soft heat insulating material does not function as a strength member like the block connection member 43 to be described later, but can be processed to a minimum thickness to relieve external stress.
- the block connecting member 43 is post-construction by spraying a hard heat insulating material using a spray device 50 into the gap in which the flow path member 41 and the block buffer member 42 are pre-constructed. can be installed.
- the block connection member 43 may be formed of a material having the same or similar thermal insulation properties as the flat block FB and the corner block CB. That is, the block connection member 43 may be formed of various hard insulating materials having a strength sufficient to withstand the load of the liquefied gas filled in the liquefied gas storage tank 200 .
- the rigid heat insulating material forming the block connecting member 43 may be, for example, high-density polyurethane foam, but is not limited thereto.
- the block connection member 43, the upper surface level is formed similar to or equal to the upper surface level of the flat block (FB) and the corner block (CB).
- the value of the gap between the flat block (FB) and the corner block (CB) at a specific interval is measured on the side (measured), and then the corresponding information is sent to the spray device (50). input so that the amount of sprayed insulation can be adjusted.
- the spray device 50 may be manufactured to be installed on a rail similar to or the same as the rail for installing the corner connection barrier 42b, and the amount of the sprayed insulating material is a flat block (FB) and a corner block (CB). Adjust the amount of insulator injected so that it does not protrude as much as possible to the upper surface of the unit.
- FB flat block
- CB corner block
- the upper surface level of the block connecting member 43 should exactly match the upper surface level of each of the flat block FB and the corner block CB,
- the level can be matched by grinding the protruding part using a grinding machine after the first construction so that the amount of the insulating material rises finely than the upper surface level of each of the flat block (FB) and the corner block (CB).
- the present invention is not limited to the embodiments described above, and a combination of the embodiments or a combination of at least one of the embodiments and a known technology may be included as another embodiment.
- stiffener 3 primary insulation wall
- 3b12 inner middle fixing part 31b12: inner middle plywood
- 341b corner connection insulation 342b, 343b: corner connection plywood
- corner second insulation wall 5b1 outer first fixing part
- 51b1 Peripheral plywood
- 51b2 Bevel plywood
- UBB upper connection block
Abstract
Description
Claims (10)
- 액화가스를 수용하는 저장공간을 형성하는 서로 다른 각도의 제1면 또는 제2면에서 평평한 부분에 배치되며, 금속 재질의 플랫 1차방벽을 고정하며 상기 플랫 1차방벽의 외측에 배치되는 플랫 1차단열벽과, 상기 플랫 1차단열벽의 외측에 마련되는 플랫 2차방벽과, 상기 플랫 2차방벽의 외측에 배치되는 플랫 2차단열벽을 포함하는 평면블록; 및상기 제1면과 상기 제2면이 만나는 코너 부분에 배치되며, 금속 재질의 코너 1차방벽을 고정하며 상기 코너 1차방벽의 외측에 배치되는 코너 1차단열벽과, 상기 코너 1차단열벽의 외측에 마련되는 코너 2차방벽과, 상기 코너 2차방벽의 외측에 배치되는 코너 2차단열벽을 포함하는 코너블록을 포함하고,상기 코너 1차단열벽은,상기 코너 2차방벽에 고정되는 외측 1차플라이우드와, 상기 코너 1차방벽이 고정되는 내측 1차플라이우드와, 상기 내측 1차플라이우드 및 상기 외측 1차플라이우드 사이에 배치되는 코너 1차단열재를 포함하는 것을 특징으로 하는 액화가스 저장탱크.
- 제1항에 있어서, 상기 코너 1차단열벽은,상기 제1면과 상기 제2면의 내측에 각각 마련되며, 상기 외측 1차플라이우드, 상기 코너 1차단열재 및 상기 내측 1차플라이우드로 구성되는 내측 제1고정부와 내측 제2고정부; 및상기 내측 제1고정부와 상기 내측 제2고정부 사이에 단열재를 채워 구성되는 내측 절곡부를 포함하는 것을 특징으로 하는 액화가스 저장탱크.
- 제2항에 있어서, 상기 코너 1차단열재는,고밀도 폴리우레탄 폼이고,상기 내측 절곡부의 상기 단열재는 저밀도 폴리우레탄 폼인 것을 특징으로 하는 액화가스 저장탱크.
- 제2항에 있어서, 상기 코너 1차방벽은,상기 내측 제1고정부의 상기 내측 1차플라이우드 및 상기 내측 제2고정부의 상기 내측 1차플라이우드에 고정되며 상기 내측 절곡부의 상기 단열재의 내면에서 절곡되도록 마련되는 것을 특징으로 하는 액화가스 저장탱크.
- 제1항에 있어서, 상기 코너 2차단열벽은,상기 제1면과 상기 제2면의 내측에 각각 고정되며, 상기 코너 2차방벽의 외측으로 순차 배치되는 내측 2차플라이우드, 코너 2차단열재, 외측 2차플라이우드로 구성되는 외측 제1고정부와 외측 제2고정부를 포함하고,상기 제1면에 고정되는 상기 외측 제1고정부와 상기 제2면에 고정되는 상기 외측 제2고정부가 마주하는 측면은, 상기 코너 부분을 분할하는 방향으로 경사지게 마련되는 것을 특징으로 하는 액화가스 저장탱크.
- 제1항에 있어서,상기 평면블록의 상기 플랫 1차단열벽에 연결되는 상기 코너블록의 상기 코너 1차단열벽과, 상기 평면블록의 상기 플랫 2차단열벽에 연결되는 상기 코너블록의 상기 코너 2차단열벽의 두께는, 동일 또는 유사한 것을 특징으로 하는 액화가스 저장탱크.
- 서로 다른 각도의 제1면과 제2면이 만나는 코너 부분에 배치되어 액화가스를 수용하는 저장공간을 형성하는 코너블록을 포함하는 액화가스 저장탱크로서,상기 코너블록은,상기 제1,2면의 내측에 마련되며, 싱글보드로 이루어지는 하부블록과, 상기 하부블록 상에 인접 배치되어 본딩 결합되는 복수의 상부블록과, 이웃하여 배치되는 상기 하부블록의 상면에 본딩 결합되어 상기 하부블록간을 연결하는 상부연결블록으로 이루어지고,상기 상부블록(또는 상기 상부연결블록)은,상기 제1,2면의 내측에 예정된 각도로 절곡되어 마련되며, 금속 재질의 코너 1차방벽을 고정하며, 상기 코너 1차방벽의 외측에 배치되는 금속 재질의 방벽고정부재와, 상기 방벽고정부재의 외측에 배치되는 내측 1차플라이우드(또는 코너 제1연결플라이우드)와, 상기 내측 1차플라이우드(또는 상기 코너 제1연결플라이우드)의 외측에 배치되는 코너 1차단열재(또는 코너 연결단열재)와, 상기 코너 1차단열재(또는 상기 코너 연결단열재)의 외측에 배치되며 상기 하부블록과 본딩 결합되는 외측 1차플라이우드(또는 코너 제2연결플라이우드)로 이루어지며,복수의 제1홀을 갖는 상기 외측 1차플라이우드(또는 상기 코너 제2연결플라이우드)를 복수의 제2홀을 갖는 상기 코너 1차단열재(또는 상기 코너 연결단열재)의 외측면에 본딩 결합하고,복수의 제3홀을 갖는 상기 내측 1차플라이우드(또는 상기 코너 제1연결플라이우드)를 상기 코너 1차단열재(또는 상기 코너 연결단열재)의 내측면에 본딩 결합하고,상기 외측 1차플라이우드(또는 상기 코너 제2연결플라이우드), 상기 코너 1차단열재(또는 상기 코너 연결단열재), 상기 내측 1차플라이우드(또는 상기 코너 제1연결플라이우드)가 본딩 결합된 상태에서, 상기 내측 1차플라이우드(또는 상기 코너 제1연결플라이우드)의 상면에 상기 방벽고정부재를 고정하고,상기 방벽고정부재가 상기 내측 1차플라이우드(또는 상기 코너 제1연결플라이우드)에 고정된 상태에서, 상기 복수의 제1,2홀에 의해 형성되는 연통 홀 각각에 폼 플러그를 삽입하는 액화가스 저장탱크.
- 제7항에 있어서, 상기 방벽고정부재는,상기 내측 1차플라이우드(또는 상기 코너 제1연결플라이우드)와 볼팅 결합하는 액화가스 저장탱크.
- 제7항에 있어서, 상호 인접 배치되는 상기 상부블록의 상기 코너 1차단열재 사이에는,별도의 단열재 충진이 생략 혹은 시공되는 액화가스 저장탱크.
- 제7항에 있어서, 상호 인접 배치되는 상기 상부블록의 상기 코너 1차단열재와 상기 상부연결블록의 상기 코너 연결단열재 사이에는,별도의 단열재 충진이 생략 혹은 시공되는 액화가스 저장탱크.
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CN202180039360.0A CN116157614A (zh) | 2020-07-31 | 2021-07-23 | 液化气体储存罐以及包括液化气体储存罐的船舶 |
US17/928,891 US20230228378A1 (en) | 2020-07-31 | 2021-07-23 | Liquefied gas storage tank and ship comprising same |
JP2022573753A JP2023529122A (ja) | 2020-07-31 | 2021-07-23 | 液化ガス貯蔵タンク及びそれを含む船舶 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20090132514A (ko) * | 2008-06-20 | 2009-12-30 | 삼성중공업 주식회사 | 액화천연가스 화물창의 코너 패널 |
JP2010048421A (ja) * | 2006-09-01 | 2010-03-04 | Korea Gas Corp | 液化天然ガスの貯蔵タンクを形成するための構造体 |
KR20150142021A (ko) * | 2013-04-12 | 2015-12-21 | 가즈트랑스포르 에 떼끄니가즈 | 유체 저장용 밀봉 단열 탱크의 모서리 구조물 |
KR20190078547A (ko) * | 2016-11-09 | 2019-07-04 | 가즈트랑스포르 에 떼끄니가즈 | 밀봉되고 단열인 탱크의 코너 구조 및 그것의 조립 방법 |
KR20200023483A (ko) * | 2017-07-13 | 2020-03-04 | 가즈트랑스포르 에 떼끄니가즈 | 단열 밀봉 탱크 |
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- 2021-07-23 WO PCT/KR2021/009553 patent/WO2022025534A1/ko active Application Filing
- 2021-07-23 CN CN202180039360.0A patent/CN116157614A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010048421A (ja) * | 2006-09-01 | 2010-03-04 | Korea Gas Corp | 液化天然ガスの貯蔵タンクを形成するための構造体 |
KR20090132514A (ko) * | 2008-06-20 | 2009-12-30 | 삼성중공업 주식회사 | 액화천연가스 화물창의 코너 패널 |
KR20150142021A (ko) * | 2013-04-12 | 2015-12-21 | 가즈트랑스포르 에 떼끄니가즈 | 유체 저장용 밀봉 단열 탱크의 모서리 구조물 |
KR20190078547A (ko) * | 2016-11-09 | 2019-07-04 | 가즈트랑스포르 에 떼끄니가즈 | 밀봉되고 단열인 탱크의 코너 구조 및 그것의 조립 방법 |
KR20200023483A (ko) * | 2017-07-13 | 2020-03-04 | 가즈트랑스포르 에 떼끄니가즈 | 단열 밀봉 탱크 |
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JP2023529122A (ja) | 2023-07-07 |
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