WO2022131808A1 - 액화가스 저장탱크 및 이를 포함하는 선박 - Google Patents
액화가스 저장탱크 및 이를 포함하는 선박 Download PDFInfo
- Publication number
- WO2022131808A1 WO2022131808A1 PCT/KR2021/019158 KR2021019158W WO2022131808A1 WO 2022131808 A1 WO2022131808 A1 WO 2022131808A1 KR 2021019158 W KR2021019158 W KR 2021019158W WO 2022131808 A1 WO2022131808 A1 WO 2022131808A1
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- WO
- WIPO (PCT)
- Prior art keywords
- liquefied gas
- unit
- storage tank
- gas storage
- discharge pipe
- Prior art date
Links
- 238000003780 insertion Methods 0.000 claims description 24
- 230000037431 insertion Effects 0.000 claims description 24
- 238000012423 maintenance Methods 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims 8
- 239000007789 gas Substances 0.000 description 190
- 239000000446 fuel Substances 0.000 description 39
- 239000003949 liquefied natural gas Substances 0.000 description 9
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000003915 liquefied petroleum gas Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000009835 boiling Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000001294 propane Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009834 vaporization Methods 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
- B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
- B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
- B63B17/0027—Tanks for fuel or the like ; Accessories therefor, e.g. tank filler caps
-
- 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
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
-
- 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
- F17C2201/0104—Shape cylindrical
- F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
-
- 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
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0612—Wall structures
- F17C2203/0614—Single wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0352—Pipes
- F17C2205/0364—Pipes flexible or articulated, e.g. a hose
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/033—Small pressure, e.g. for liquefied gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
- F17C2223/042—Localisation of the removal point
- F17C2223/046—Localisation of the removal point in the liquid
- F17C2223/047—Localisation of the removal point in the liquid with a dip tube
-
- 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
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/01—Propulsion of the fluid
- F17C2227/0128—Propulsion of the fluid with pumps or compressors
- F17C2227/0135—Pumps
-
- 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
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/01—Propulsion of the fluid
- F17C2227/0128—Propulsion of the fluid with pumps or compressors
- F17C2227/0171—Arrangement
- F17C2227/0178—Arrangement in the vessel
-
- 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
Definitions
- the present invention relates to a liquefied gas storage tank and a ship including the same.
- the liquefied gas includes liquefied natural gas (LNG) or liquefied propane gas (Liquefied Propane Gas: LPG).
- LNG liquefied natural gas
- LPG liquefied propane gas
- This liquefied gas has a much smaller volume than the gaseous state (for example, when liquefied in the case of LNG, the volume is reduced to 1/600, and in the case of LPG, it can be greatly reduced to 1/250 when liquefied), so it is convenient to store and transport in the liquefied state.
- There is a difficulty in maintaining the temperature below the boiling point about -162 °C for LNG, about -50 °C for LPG).
- a cryogenic liquefied gas storage tank that maintains the liquefied gas below the boiling point is required.
- the liquefied gas storage tank is a structure for storing the liquefied fuel of a transport organization such as a ship, and since the liquid is stored therein, inevitably, the liquefied gas storage tank according to the movement of a floating structure such as a ship or a land transport institution. is not always able to remain level with the water surface or the ground, resulting in a flow of liquid fuel.
- gas such as vaporized fuel gas is introduced through the exhaust pipe part, and accordingly, the gas flows into the configuration of the engine to which the liquefied gas fuel is to be supplied, causing a malfunction.
- An object of the present invention is to provide a liquefied gas storage tank that prevents the discharge pipe of the pump unit from being immersed in the liquefied gas fuel and exposing it to the space of the liquefied gas storage tank, and a ship including the same.
- an object of the present invention is to provide a liquefied gas storage tank and a ship including the same that prevent the discharge pipe of the pump unit from being exposed to a relatively high-temperature space filled with the gas of the liquefied gas storage tank.
- the liquefied gas storage tank is provided with a tank unit in which liquefied gas is stored, and a discharge pipe connecting the inside and the outside of the tank unit, and the liquefied gas stored in the tank unit is sucked through the discharge pipe.
- a tank unit in which liquefied gas is stored
- a discharge pipe connecting the inside and the outside of the tank unit, and the liquefied gas stored in the tank unit is sucked through the discharge pipe.
- the lower wall is parallel to the bottom of the tank unit is formed in parallel It may include a box unit.
- the bottom portion of the liquefied gas storage tank may be provided in a downwardly inclined form toward the portion provided with the discharge pipe portion so that the liquefied gas converges to the portion provided with the discharge pipe portion.
- the bottom portion of the liquefied gas storage tank according to an embodiment of the present invention may be provided in a form inclined toward the short side side portion of the tank unit provided with the discharge pipe portion.
- the discharge pipe portion of the liquefied gas storage tank extends downward through the upper wall portion of the parallel box unit, or penetrates the lower wall portion of the parallel box unit to communicate with the inside of the parallel box unit can be
- the parallel box unit of the liquefied gas storage tank is provided in the parallel box unit so that the liquefied gas is introduced but not discharged
- a storage flip door that is provided to open and close only in one direction may include
- the liquefied gas storage tank is provided to be in contact with at least the discharge pipe portion, and may include a low temperature maintenance unit containing the liquefied gas therein.
- the low-temperature maintenance unit of the liquefied gas storage tank may include an insertion cylinder portion provided to pass through the discharge pipe portion, and provided in a cylindrical shape in contact with the discharge pipe portion.
- the insertion cylinder portion of the liquefied gas storage tank is provided such that an inner tube portion in contact with the discharge tube portion and the inner tube portion are disposed therein, and the upper end portion is spaced apart from the inner tube portion by a predetermined interval
- the liquefied gas may be accommodated, and the lower end may include an outer portion coupled to the inner tube portion.
- the low-temperature maintenance unit of the liquefied gas storage tank is communicated with the upper end of the insertion cylinder part and extends to the upper wall part of the parallel box unit or the upper wall part and the side wall part of the parallel box unit, It may include a double wall portion provided with a cooling flip door that opens and closes only in one direction so that the liquefied gas flows into the interior.
- the low-temperature maintenance unit of the liquefied gas storage tank communicates with the lower end of the insertion cylinder part and extends to the lower wall part of the parallel box unit or the lower wall part and the side wall part of the parallel box unit, It may include a double wall portion provided with a cooling flip door that opens and closes only in one direction so that the liquefied gas flows into the interior.
- a ship may include a hull including an engine unit in which the liquefied gas storage tank and the liquefied gas storage tank are installed, and providing a driving force.
- the tank unit in the liquefied gas storage tank of a ship according to another embodiment of the present invention, the tank unit, the bottom portion may be directly seated on the upper surface of the hull.
- the liquefied gas storage tank of the present invention and a ship including the same are provided with a parallel box unit, so that the discharge pipe of the pump unit is not immersed in the liquefied gas fuel, and the problem of being exposed to the space of the liquefied gas storage tank can be prevented. There is this.
- the liquefied gas storage tank of the present invention and a ship including the same have the advantage of facilitating installation of the tank unit and improving space utilization by arranging the parallel box unit parallel to the tank unit.
- the liquefied gas storage tank of the present invention and a ship including the same have an advantage in that the discharge pipe portion of the pump unit can be prevented from being exposed to a relatively high temperature space filled with the gas of the liquefied gas storage tank.
- the capacity of the liquefied gas storage tank can be used to the maximum, thereby increasing the operating distance, preventing time loss due to frequent fuel injection, and ensuring that the liquefied gas fuel in the liquefied gas storage tank is always filled to a certain depth or more. There is an effect that can improve the problem that the fuel consumption efficiency is reduced due to the increase in the weight of the ship.
- FIG. 1 is a front view showing an embodiment in which the discharge pipe is connected to the upper side of the tank unit in the liquefied gas storage tank of the present invention.
- FIG. 2 is a front view showing an embodiment in which the discharge pipe part is linked with the lower side of the tank unit in the liquefied gas storage tank of the present invention.
- FIG 3 is a front view showing an embodiment in which the bottom of the tank unit is inclined in the liquefied gas storage tank of the present invention.
- FIG. 4 is a front view showing an embodiment in which the bottom of the tank unit is inclined toward the short side of the tank unit in the liquefied gas storage tank of the present invention.
- FIG. 5 is a front view showing a parallel box unit portion in a liquefied gas storage tank according to an embodiment of the present invention.
- FIG. 6 is a front view showing an embodiment in which only the insertion cylinder part is provided in the low temperature maintenance unit in the liquefied gas storage tank of the present invention.
- FIG. 7 is a front view showing an embodiment in which the low temperature maintenance unit includes a double wall portion in the liquefied gas storage tank of the present invention.
- FIG 8 is a front view showing an embodiment in which the double wall portion of the low temperature maintenance unit extends to the side wall portion in the liquefied gas storage tank of the present invention.
- FIG. 9 is a side view showing a liquefied gas storage tank and a ship including the same according to an embodiment of the present invention.
- the liquefied gas storage tank 1 is a structure for storing liquefied fuel of transport organizations such as ships, and cannot always be maintained horizontally with respect to the water surface or the ground, and thus the flow of liquefied fuel occurs.
- the present invention has a box-shaped parallel box unit 300 is added. Accordingly, it is possible to prevent the problem that the discharge pipe portion 210 of the pump unit 200 is not immersed in the liquefied gas (L) fuel and is exposed to the space of the liquefied gas storage tank 1 by removing it.
- Such a parallel box unit 300 may consider a shape that is recessed than the bottom part 110 of the tank unit 100 to converge the remaining liquefied gas (L) into the parallel box unit 300, but in this case There may be a problem in that it is difficult to install the tank unit 100 on the upper surface 2b of the hull 2, etc., so the present invention provides the parallel box unit 300 with the bottom part 110 of the tank unit 100. ) and installed parallel to the
- FIG. 1 is a front view showing an embodiment in which the discharge pipe 210 is connected to the upper side of the tank unit 100 in the liquefied gas storage tank 1 of the present invention.
- FIG. 2 is a front view showing an embodiment in which the discharge pipe part 210 is linked to the lower side of the tank unit 100 in the liquefied gas storage tank 1 of the present invention.
- the liquefied gas storage tank 1 may include a tank unit 100 , a pump unit 200 , and a parallel box unit 300 .
- the tank unit 100 may store liquefied gas (L).
- the pump unit 200 is provided with a discharge pipe part 210 connecting the inside and the outside of the tank unit 100, and the liquefied gas (L) stored in the tank unit 100 through the discharge pipe part 210 ) can be sucked and supplied to the outside.
- the parallel box unit 300 is provided inside the tank unit 100, is provided in the form of a box surrounding the end of the discharge pipe part 210 to accommodate the liquefied gas (L), and the lower wall part 340 may be formed parallel to the bottom 110 of the tank unit 100 .
- the parallel box unit 300 is provided to surround the end of the discharge pipe part 210, so that the liquefied gas (L) fuel is used inside the tank unit 100 Even if the liquefied gas (L) fuel is biased to one side due to the water level being lowered according to the (L) Can be filled with fuel.
- the lower wall portion 340 of the parallel box unit 300 is provided in parallel with the bottom portion 110 of the tank unit 100, so that the tank unit 100
- the bottom portion 110 of the can be formed in a parallel shape. Accordingly, it is easy to install the tank unit 100 on the hull 2 and the like, and the space utilization on the hull 2 is improved.
- the tank unit 100 is a configuration in which cryogenic liquefied gas (L), such as liquefied natural gas (LNG) or liquefied petroleum gas (LPG), etc. can be stored, and is generally coupled to the hull 2 of a ship and the like.
- L cryogenic liquefied gas
- LNG liquefied natural gas
- LPG liquefied petroleum gas
- a heat insulating material is coupled to the outer surface of the tank unit 100 to ensure insulation of the liquefied gas (L),
- the tank unit 100 may be provided with a support member therein in order to store the liquefied gas (L) of high internal pressure, and this support member is formed in a ring shape in the circumferential direction of the tank unit 100 .
- the support member may be provided in the form of a disk having a hole in the center.
- the pump unit 200 serves to transfer the liquefied gas (L) fuel inside the tank unit 100 to the outside.
- the discharge pipe part 210 of the pump unit 200 must be immersed in the liquefied gas (L) and provided, sloshing When the phenomenon occurs, there was a problem in that the discharge pipe part 210 is exposed to the gas space of the liquefied gas storage tank 1 without being immersed in the liquefied gas (L) fuel in the prior art. By providing the unit 300, it is possible to improve this problem.
- the pump unit 200 may be provided with a supply pipe 220 to store the liquefied gas (L) into the tank unit 100 . That is, the liquefied gas L can be supplied to the tank unit 100 from the outside through the supply pipe 220 .
- the function of the supply pipe 220 may be combined with the discharge pipe 210 .
- the pump unit 200 includes only the discharge pipe part 210 , it is possible to perform all functions of supplying the liquefied gas L to the tank unit 100 or discharging to the outside.
- the parallel box unit 300 serves to fill the vicinity of the discharge pipe 210 with the liquefied gas (L) fuel.
- the parallel box unit 300 may be provided in the form of a container surrounding the discharge pipe part 210 .
- the parallel box unit 300 may include a storage flip door 310 through which the liquefied gas (L) is introduced but not discharged. That is, the parallel box unit 300 is provided to surround the discharge pipe part 210 of the pump unit 200, and by accommodating the liquefied gas (L) therein in one-way, the tank As the liquefied gas (L) fuel is used inside the unit 100, the water level is lowered, or the liquefied gas (L) fuel is Even if it is biased to one side, it is possible to fill the vicinity of the discharge pipe part 210 with liquefied gas (L) fuel. A detailed description thereof will be described later with reference to FIG. 5 .
- the lower wall portion 340 of the parallel box unit 300 is provided in parallel with the bottom portion 110 of the tank unit 100, so that the bottom portion 110 of the tank unit 100 is in a parallel form. can be formed. Accordingly, the operation of installing the tank unit 100 to the hull 2 and the like can be facilitated.
- the lower wall part 340 of the parallel box unit 300 may be formed to share the bottom part 110 in order to be disposed parallel to the bottom part 110 . Accordingly, the material cost for manufacturing the parallel box unit 300 can be reduced and the total weight of the liquefied gas storage tank 1 can be reduced.
- the parallel box unit 300 is provided to surround the periphery of the discharge pipe part 210, it may be configured to seal the periphery of the discharge pipe part 210 .
- the liquefied gas (L) inside the parallel box unit 300 is vaporized due to a rise in temperature, etc., since it is vaporized in an enclosed area, it is impossible to vaporize more than a certain amount. Accordingly, it is possible to improve the problem of vaporization of the liquefied gas (L).
- the parallel box unit 300 may be formed in an inclined shape in addition to the lower wall portion 340 being provided in parallel with the bottom portion 110 of the tank unit 100 .
- the effect of immersing the end of the discharge pipe part 210 in the liquefied gas (L) can be enhanced by converging the liquefied gas (L) to one side. A detailed description thereof will be described later with reference to FIGS. 3 and 4 .
- the discharge pipe part 210 of the liquefied gas storage tank 1 extends downwardly through the upper wall part 320 of the parallel box unit 300, or the parallel box It may communicate with the inside of the parallel box unit 300 through the lower wall portion 340 of the unit 300 .
- the structure in which the discharge pipe part 210 penetrates the upper wall part 320 and is coupled may facilitate the installation of the discharge pipe part 210 to the tank unit 100 .
- the liquefied gas (L) converges to the lower wall part 340 by gravity, so that the discharge pipe part 210 is easily removed. It can be configured to be immersed in the liquefied gas (L).
- the low-temperature liquefied gas (L) accumulates in the lower wall portion 340 by gravity. By being connected, it is possible to prevent the discharge pipe 210 from being exposed to a high-temperature space.
- the discharge pipe part 210 is coupled to the lower wall part 340 , and may be provided at the same height as the lower wall part 340 .
- the discharge pipe part 210 may be formed to extend to a predetermined height inside the parallel box unit 300 .
- FIG. 3 is a front view showing an embodiment in which the supply pipe part 220 is linked with the upper side of the tank unit 100 in the liquefied gas storage tank 1 of the present invention
- FIG. 4 is the liquefied gas storage tank 1 of the present invention.
- ) is a front view showing a state in which the liquefied gas storage tank 1 is inclined in an embodiment in which the supply pipe 220 is linked to the upper side of the tank unit 100 .
- the bottom part 110 of the liquefied gas storage tank 1 is provided with the discharge pipe part 210 so that the liquefied gas L converges. , may be provided in a downwardly inclined form toward the portion where the discharge pipe portion 210 is provided.
- the lower wall portion 340 is formed in an inclined shape, and the liquefied gas L is discharged from the tank unit 100 of the lowest height provided with the discharge pipe portion 210. can be converged into parts. Accordingly, it is possible to increase the effect of immersing the end of the discharge pipe portion 210 in the liquefied gas (L).
- the liquefied gas (L) stored in the tank unit 100 is located on the bottom part 110 of the tank unit 100 by gravity, and the bottom part 110 is the discharge pipe part 210 . ), it is possible to further converge the liquefied gas (L) to one side on which the discharge pipe part 210 is disposed.
- the bottom part 110 of the liquefied gas storage tank 1 is inclined toward the short side side part 120 of the tank unit 100 provided with the discharge pipe part 210 . It may be provided in the form of a photograph.
- the short side side part 120 means the side wall part 330 of the tank unit 100 having a relatively short length in the top view of the tank unit 100 .
- the bottom part 110 since the bottom part 110 needs only to be formed to be inclined in one direction, there is an advantage in that it is easier to manufacture than the case where the bottom part 110 is inclined in both directions.
- the discharge pipe part 210 is also provided on the upper or lower side of the short side side part 120 .
- the parallel box unit 300 may also be disposed in contact with the short side side portion 120 . According to this, the parallel box unit 300 can share at least a part of the side wall part 330 or the lower wall part 340 with the short side side part 120 . Accordingly, it is possible to reduce the material cost for manufacturing the parallel box unit 300 and also reduce the overall weight of the liquefied gas storage tank (1).
- the bottom part 110 is inclined in the direction of the short side side part 120 , and the discharge pipe part 210 is disposed adjacent to the short side side part 120 , so that the discharge pipe part 210 is disposed.
- the tank unit 100 is inclined in the direction of the short side portion 120 to cause sloshing, there is no room for the problem of exposure of the exhaust pipe 210 to the outside air due to the sloshing. That is, in this case, even if the parallel box unit 300 is not provided, since the discharge pipe part 210 is disposed adjacent to the shortest end of the tank unit 100, it can be immersed in the liquefied gas (L). will be.
- FIG 5 is a front view showing the parallel box unit 300 in the liquefied gas storage tank 1 according to an embodiment of the present invention.
- the parallel box unit 300 of the liquefied gas storage tank 1 includes the parallel box unit 300 so that the liquefied gas L is introduced but not discharged. ), but may include a storage flip door 310 that is provided to open and close only in one direction.
- the storage flip door 310 closes the open area of the parallel box unit 300, but the liquefied gas (L) may be configured to move openly in the inflow direction.
- the storage flip door 310 has one end hinged to one side of the opening of the parallel box unit 300 , and the other end is provided to extend so as to be caught on the inner surface of the parallel box unit 300 . It may have a structure that moves closely to the parallel box unit 300 by elasticity.
- the storage flip door 310 when the storage flip door 310 is pushed in order to move the liquefied gas (L) from the inside of the parallel box unit 300 to the outside, it is moved to close the open area of the parallel box unit 300, On the other hand, it is no longer rotated to the outside and driven to be opened, while the storage flip door 310 is opened in order to move the liquefied gas (L) from the outside of the parallel box unit 300 to the inside of the parallel box unit. When pushed to the inside of 300, it is rotated and can be driven to open.
- the storage flip door 310 may be provided at one end hinged with the parallel box unit 300, such as a spring member to which an elastic force is applied to the outside.
- At least one of the storage flip door 310 may be provided on the upper wall portion 320 or the side wall portion 330 of the parallel box unit 300 .
- the opening through which the liquefied gas (L) is introduced into the parallel box unit 300 may be formed not only in the upper wall portion 320 of the parallel box unit 300 but also in the side wall portion 330, and the The number may be singular or plural.
- the storage flip door 310 is installed in the opening formed in at least one of the upper wall part 320 and the side wall part 330 so that the liquefied gas (L) is accommodated only in the parallel box unit 300 . can be configured.
- the parallel box unit 300 is configured to seal the periphery of the discharge pipe part 210 when the storage flip door 310 is closed.
- the liquefied gas inside the parallel box unit 300 is When (L) is vaporized by a temperature rise or the like, it is vaporized in an enclosed area, so it cannot vaporize more than a certain amount. Accordingly, it is possible to improve the problem of vaporization of the liquefied gas (L).
- FIG. 6 is a front view showing an embodiment in which only the insertion cylinder part 410 is provided in the low temperature maintenance unit 400 in the liquefied gas storage tank 1 of the present invention.
- the liquefied gas storage tank 1 is provided to be in contact with at least the discharge pipe 210, and a low-temperature maintenance unit in which the liquefied gas L is contained ( 400) may be included.
- the liquefied gas storage tank 1 of the present invention can maintain the discharge pipe 210 at a low temperature by having the low-temperature maintaining unit 400, thereby moving through the discharge pipe 210. It is possible to prevent the problem that the liquefied gas (L) is vaporized due to a rise in temperature.
- the liquefaction accommodated in the parallel box unit 300 through the discharge pipe 210 even if the periphery of the discharge pipe 210 can be filled with the liquefied gas L by the parallel box unit 300 , the liquefaction accommodated in the parallel box unit 300 through the discharge pipe 210 .
- a relatively high temperature gas region may be formed around the discharge pipe part 210.
- the liquefied gas (L) moved through the discharge pipe part 210 is vaporized. Since a problem may occur, it is to provide the low temperature maintenance unit 400 .
- the discharge pipe part 210 is provided to pass through, and the cylinder is in contact with the discharge pipe part 210 . It may include an insertion cylinder part 410 provided in the shape.
- the low temperature maintenance unit 400 is in contact with the periphery of the discharge pipe part 210, but includes the insertion cylinder part 410 accommodating a relatively low temperature liquefied gas (L) therein.
- the liquefied gas (L) may include liquefied natural gas (LNG) or liquefied propane gas (LPG), and in the case of the liquefied natural gas, the boiling point is about -162 ° C. , in the case of the liquefied propane gas, since the boiling point is about -50 °C, it is possible to maintain the discharge pipe portion 210 at about -162 °C, about -50 °C, respectively.
- LNG liquefied natural gas
- LPG liquefied propane gas
- the insertion cylinder portion 410 of the liquefied gas storage tank 1 includes an inner tube portion 411 and the inner tube portion 411 in contact with the discharge tube portion 210 . It is provided to be disposed inside, and the upper end is spaced apart from the inner tube portion 411 by a predetermined interval to accommodate the liquefied gas (L), and the lower end may include an outer portion 412 that is coupled to the inner tube portion 411. have.
- the inner tube portion 411 is in contact with the discharge tube portion 210 is inserted, and a space is formed between the inner tube portion 411 and the outer portion 412 to accommodate the liquefied gas (L).
- the inner tube portion 411 and the outer portion 412 have a double pipe structure, and the lower end portion is coupled to each other to have a structure that can accommodate the liquefied gas (L) without escaping.
- upper ends of the inner tube portion 411 and the outer portion 412 may be disposed to be spaced apart from each other, and the upper end portion of the insertion cylinder portion 410 may be provided in an open form.
- a storage flip door 310 for moving the liquefied gas L in only one direction is provided at the upper end of the insertion cylinder, it may be provided.
- FIG. 7 is a front view showing an embodiment in which the low temperature maintenance unit 400 includes a double wall portion 420 in the liquefied gas storage tank 1 of the present invention
- FIG. 8 is the liquefied gas storage tank 1 of the present invention. It is a front view showing an embodiment in which the double wall portion 420 of the cryostat unit 400 extends to the side wall portion 330 .
- the low temperature maintenance unit 400 of the liquefied gas storage tank 1 may include a double wall portion 420 provided with a cooling flip door 421 that opens and closes only in one direction so as to flow into the air.
- the double wall portion 420 has an effect of forming the outer portion of the parallel box unit 300 in a low-temperature environment.
- the double wall portion 420 is provided on the upper wall portion 320 of the parallel box unit 300, when viewed from the front sectional view, it may be formed in a "L" shape.
- the liquefied gas (L) in addition to being able to arrange the liquefied gas (L) in order to maintain the discharge pipe part 210 in a low-temperature environment by the insertion cylinder part 410, the upper wall part 320 of the parallel box unit 300 ) to maintain a low-temperature environment, it is also possible to arrange the liquefied gas (L).
- the double wall part 420 is provided on the upper wall part 320 and the side wall part 330 of the parallel box unit 300, and may be formed in an “n” shape when viewed from a front cross-sectional view. For this, reference may be made to (a) of FIG. 8 .
- the upper wall part 320 of the parallel box unit 300 ) and the liquefied gas (L) may be disposed in order to maintain the side wall portion 330 in a low-temperature environment.
- the double wall part 420 may be a double plate with a space formed therein, and the outer part of the insertion cylinder part 410 ( It may be connected in communication with the space between the 412 and the inner tube portion 411 .
- a cooling flip door 421 is provided on the upper surface part, and the liquefied gas (L) is accommodated into the double wall part 420 inside.
- it may be configured to prevent movement to the outside.
- the low-temperature maintenance unit 400 of the liquefied gas storage tank 1 includes the insertion cylinder part 410 ) communicates with the lower end of the parallel box unit 300 or extends to the lower wall 340 and the side wall 330 of the parallel box unit 300, and the liquefied gas (L) It may include a double wall portion 420 provided with a cooling flip door 421 that opens and closes in only one direction so as to be introduced into the interior.
- the double wall portion 420 is provided on the lower wall portion 340 of the parallel box unit 300, when viewed from the front cross-sectional view, may be formed in a "B" shape.
- the liquefied gas (L) in addition to being able to arrange the liquefied gas (L) in order to maintain the discharge pipe part 210 in a low-temperature environment by the insertion cylinder part 410, the lower wall part 340 of the parallel box unit 300 ) to maintain a low-temperature environment, it is also possible to arrange the liquefied gas (L).
- the double wall portion 420 may be provided on the lower wall portion 340 and the side wall portion 330 of the parallel box unit 300 to be formed in a “U” shape when viewed in a front cross-sectional view. For this, reference may be made to (b) of FIG. 8 .
- the lower wall part 340 of the parallel box unit 300 ) and the liquefied gas (L) may be disposed in order to maintain the side wall portion 330 in a low-temperature environment.
- the double wall part 420 may be a double plate with a space formed therein, and the outer part of the insertion cylinder part 410 ( It may be connected in communication with the space between the 412 and the inner tube portion 411 .
- a cooling flip door 421 is provided on the upper surface part, and the liquefied gas (L) is accommodated into the double wall part 420 inside.
- it may be configured to prevent movement to the outside.
- FIG. 9 is a side view showing a liquefied gas storage tank 1 and a ship including the same according to an embodiment of the present invention.
- the liquefied gas storage tank 1 and the liquefied gas storage tank 1 are installed, and the hull includes an engine unit 2a for providing driving force. (2) may be included.
- the water level is lowered as the liquefied gas (L) fuel is used in the tank unit 100, or the vessel is sloshing. Even if the liquefied gas (L) fuel is biased to one side due to the inclination of the liquefied gas storage tank 1 by ) to stably supply liquefied gas (L) as fuel.
- the tank unit 100 in the liquefied gas storage tank (1) of the ship according to another embodiment of the present invention, the bottom part 110 is to be directly seated on the upper surface (2b) of the hull (2) can
- the parallel box unit 300 is installed in parallel with the bottom part 110 of the tank unit 100, it is possible to exclude that a protruding part is provided on the bottom part 110, The bottom part 110 may be directly seated on the upper surface 2b of the hull 2 . Accordingly, the operation of installing the tank unit 100 on the hull 2 is facilitated, and the space utilization on the hull 2 is improved.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
Claims (12)
- 액화가스가 저장되는 탱크유닛;상기 탱크유닛 내부와 외부를 연결하는 배출관부가 구비되고, 상기 배출관부를 통하여 상기 탱크유닛 내부에 저장된 상기 액화가스를 흡인하여 외부로 공급하는 펌프유닛; 및상기 탱크유닛의 내부에 구비되되, 상기 배출관부의 단부를 감싸는 박스 형태로 구비되어 상기 액화가스를 수용하며, 하벽부가 상기 탱크유닛의 바닥부와 평행하게 형성되는 평행박스유닛;을 포함하는 액화가스 저장탱크.
- 제1항에 있어서,상기 바닥부는, 상기 배출관부가 구비된 부분으로 상기 액화가스가 수렴하도록, 상기 배출관부가 구비된 부분을 향하여 하향 경사진 형태로 구비되는 액화가스 저장탱크.
- 제2항에 있어서,상기 바닥부는, 상기 배출관부가 구비된 상기 탱크유닛의 단변측면부를 향하여 경사진 형태로 구비되는 액화가스 저장탱크.
- 제1항에 있어서,상기 배출관부는, 상기 평행박스유닛의 상벽부를 관통하여 하향되게 연장되거나, 상기 평행박스유닛의 하벽부를 관통하여 상기 평행박스유닛의 내부와 연통되는 액화가스 저장탱크.
- 제1항에 있어서,상기 평행박스유닛은,상기 액화가스가 유입되되 배출되지 않도록, 상기 평행박스유닛에 구비되되, 일 방향으로만 개폐되게 구비되는 저장플립도어;를 포함하는 액화가스 저장탱크.
- 제1항에 있어서,적어도 상기 배출관부와 접촉되게 구비되고, 내부에 상기 액화가스가 담기는 저온유지유닛;을 포함하는 액화가스 저장탱크.
- 제6항에 있어서,상기 저온유지유닛은,상기 배출관부가 관통되게 구비되며, 상기 배출관부와 접촉되는 실린더 형상으로 구비되는 삽입실린더부;를 포함하는 액화가스 저장탱크.
- 제7항에 있어서,상기 삽입실린더부는,상기 배출관부와 접촉되는 내관부; 및상기 내관부가 내부에 배치되게 구비되며, 상단부는 상기 내관부와 일정 간격 이격되어 상기 액화가스를 수용하고, 하단부가 상기 내관부와 결합되는 외관부;를 포함하는 액화가스 저장탱크.
- 제7항에 있어서,상기 저온유지유닛은,상기 삽입실린더부의 상단부와 연통되되 상기 평행박스유닛의 상벽부 또는 상기 평행박스유닛의 상벽부 및 측벽부로 연장되고, 상기 액화가스가 내부로 유입되도록 일 방향으로만 개폐되는 냉각플립도어가 구비되는 이중벽부;를 포함하는 액화가스 저장탱크.
- 제7항에 있어서,상기 저온유지유닛은,상기 삽입실린더부의 하단부와 연통되되 상기 평행박스유닛의 하벽부 또는 상기 평행박스유닛의 하벽부 및 측벽부로 연장되고, 상기 액화가스가 내부로 유입되도록 일 방향으로만 개폐되는 냉각플립도어가 구비되는 이중벽부;를 포함하는 액화가스 저장탱크.
- 제1항 내지 제10항 중 어느 한 항의 액화가스 저장탱크; 및상기 액화가스 저장탱크가 설치되며, 구동력을 제공하는 엔진부를 포함하는 선체;를 포함하는 선박.
- 제11항에 있어서,상기 탱크유닛은, 상기 바닥부가 상기 선체의 상부면에 직접 안착되는 선박.
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JP2023537031A JP2023554447A (ja) | 2020-12-18 | 2021-12-16 | 液化ガス貯蔵タンク及びこれを含む船舶 |
CN202180083256.1A CN116568595A (zh) | 2020-12-18 | 2021-12-16 | 液化气储罐及包括该储罐的船舶 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100650606B1 (ko) * | 2005-06-29 | 2006-11-29 | 삼성중공업 주식회사 | 액화 가스를 저장하는 선박용 카고 탱크 |
JP2010195331A (ja) * | 2009-02-26 | 2010-09-09 | Mitsubishi Heavy Ind Ltd | 液体吸込み装置および船舶 |
WO2012107993A1 (ja) * | 2011-02-07 | 2012-08-16 | 三菱重工業株式会社 | 液体吸い込み装置 |
KR20140091891A (ko) * | 2013-01-14 | 2014-07-23 | 현대중공업 주식회사 | 펌프 가이드 및 이를 구비한 해상 부유 구조물 |
KR20160003327U (ko) * | 2015-03-19 | 2016-09-28 | 현대중공업 주식회사 | 선박 연료 탱크 |
-
2020
- 2020-12-18 KR KR1020200178482A patent/KR102445127B1/ko active IP Right Grant
-
2021
- 2021-12-16 CN CN202180083256.1A patent/CN116568595A/zh active Pending
- 2021-12-16 JP JP2023537031A patent/JP2023554447A/ja active Pending
- 2021-12-16 WO PCT/KR2021/019158 patent/WO2022131808A1/ko active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100650606B1 (ko) * | 2005-06-29 | 2006-11-29 | 삼성중공업 주식회사 | 액화 가스를 저장하는 선박용 카고 탱크 |
JP2010195331A (ja) * | 2009-02-26 | 2010-09-09 | Mitsubishi Heavy Ind Ltd | 液体吸込み装置および船舶 |
WO2012107993A1 (ja) * | 2011-02-07 | 2012-08-16 | 三菱重工業株式会社 | 液体吸い込み装置 |
KR20140091891A (ko) * | 2013-01-14 | 2014-07-23 | 현대중공업 주식회사 | 펌프 가이드 및 이를 구비한 해상 부유 구조물 |
KR20160003327U (ko) * | 2015-03-19 | 2016-09-28 | 현대중공업 주식회사 | 선박 연료 탱크 |
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JP2023554447A (ja) | 2023-12-27 |
CN116568595A (zh) | 2023-08-08 |
KR102445127B1 (ko) | 2022-09-22 |
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