WO2022092234A1 - 浮体 - Google Patents
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- Publication number
- WO2022092234A1 WO2022092234A1 PCT/JP2021/039905 JP2021039905W WO2022092234A1 WO 2022092234 A1 WO2022092234 A1 WO 2022092234A1 JP 2021039905 W JP2021039905 W JP 2021039905W WO 2022092234 A1 WO2022092234 A1 WO 2022092234A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tank
- pipe
- carbon dioxide
- loading
- liquefied carbon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
- B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
- B63B25/14—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed pressurised
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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
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
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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
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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
- F17C6/00—Methods and apparatus for filling vessels not under pressure with liquefied or solidified gases
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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
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
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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
- B63B2025/087—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid comprising self-contained tanks installed in the ship structure as separate units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
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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
- F17C2201/03—Orientation
- F17C2201/035—Orientation with substantially horizontal main axis
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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)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/054—Size medium (>1 m3)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0123—Mounting arrangements characterised by number of vessels
- F17C2205/013—Two or more vessels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- 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
- F17C2205/0323—Valves
- F17C2205/0326—Valves electrically actuated
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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
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0352—Pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
- F17C2221/01—Pure fluids
- F17C2221/013—Carbon dioxide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0192—Three-phase, e.g. CO2 at triple point
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/033—Small pressure, e.g. for liquefied gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/04—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
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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
- F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
- F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
- F17C2225/0146—Two-phase
- F17C2225/0153—Liquefied gas, e.g. LPG, GPL
- F17C2225/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
- F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
- F17C2225/033—Small pressure, e.g. for liquefied gas
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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
- F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
- F17C2225/04—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by other properties of handled fluid after transfer
- F17C2225/042—Localisation of the filling point
- F17C2225/046—Localisation of the filling point in the liquid
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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
- 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
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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
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/04—Methods for emptying or filling
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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
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/031—Dealing with losses due to heat transfer
- F17C2260/032—Avoiding freezing or defrosting
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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
- 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
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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
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0102—Applications for fluid transport or storage on or in the water
- F17C2270/011—Barges
- F17C2270/0113—Barges floating
Definitions
- the fuel tank disclosed in Patent Document 1 includes a loading pipe (pipeline) for loading liquefied gas (LNG: Liquid Natural Gas) into the fuel tank and a unloading pipe for taking liquefied gas from the fuel tank (LNG). It has a pipeline).
- the loading pipe and the unloading pipe are guided in the tank from the vicinity of the top to the vicinity of the bottom of the tank.
- the pressure of liquefied carbon dioxide at the lower end of the loading pipe and the unloading pipe that opens in the tank corresponds to the tank operating pressure.
- the pipe top which is the highest position in the loading pipe and the unloading pipe, is located above the top of the tank.
- the pressure of liquefied carbon dioxide at the top of the pipe is lower than the pressure of liquefied carbon dioxide at the lower end of the pipe by the amount corresponding to the head pressure due to the height difference between the liquid level of the liquefied carbon dioxide in the tank and the top of the pipe. That is, in the loading pipe and the unloading pipe, the pressure of the liquefied carbon dioxide at the top of the pipe is lower than the pressure of the liquefied carbon dioxide in the tank.
- the triple point pressure (triple point pressure) where the gas phase, liquid phase, and solid phase coexist is higher than the triple point pressure of LNG and LPG, and there is a difference from the tank operating pressure during operation. small.
- the pressure of the liquefied carbon dioxide becomes less than the triple point pressure at the top of the pipe where the pressure of the liquefied carbon dioxide is the lowest, and flash evaporation of the liquefied carbon dioxide may occur. be.
- the latent heat of vaporization of the flash evaporation of the liquefied carbon dioxide causes the temperature of the liquefied carbon dioxide remaining without evaporating to drop, and the liquefied carbon dioxide solidifies in the top of the pipe to generate dry ice.
- dry ice is generated in the loading pipe or the unloading pipe, the flow of liquefied carbon dioxide in the pipe is obstructed, which may affect the loading / unloading work of the liquefied carbon dioxide.
- a dome structure is arranged at the top of the tank so as to cover the loading pipe penetrating the tank and the joint portion between the unloading pipe and the tank.
- the dome structure contains a pipe (pipeline) for taking in and out carbon dioxide gas, an instrumentation pipe, and other equipment.
- the tank operating pressure is increased according to the triple point pressure of liquefied carbon dioxide, the pressure acting on the dome structure also increases.
- a support structure for holding the pipe at a position away from the inner wall surface of the tank is required.
- a pump deep well pump
- the pump is placed in a position where it is submerged in the liquid of liquefied carbon dioxide. Therefore, when performing maintenance of the pump, it is necessary to take out all the liquid in the tank, then adjust the temperature and supply oxygen to build an environment in which the pump can be accessed, which is troublesome.
- This disclosure is made to solve the above-mentioned problems, and suppresses the generation of dry ice in the loading pipe, downsizes the dome structure, simplifies the pipe structure, and facilitates maintenance.
- the purpose is to provide a floating body that can be used.
- the floating body includes a floating body main body, a tank, a loading pipe, a unloading pipe, and a pump.
- the tank is arranged in the floating body body.
- the tank can store liquefied carbon dioxide.
- the loading pipe is connected to the lower part of the tank.
- the loading pipe loads liquefied carbon dioxide supplied from the outside of the floating body body into the tank.
- the unloading pipe is connected to the lower part of the tank.
- the pump is located in the unloading pipe outside the tank. The pump sends the liquefied carbon dioxide in the tank to the outside of the floating body body.
- the floating body of the present disclosure it is possible to suppress the generation of dry ice in the loading pipe and the unloading pipe, and to reduce the size of the dome structure, simplify the pipe structure, and facilitate maintenance.
- FIG. 1 It is a top view which shows the schematic structure of the ship as a floating body which concerns on embodiment of this disclosure. It is a figure which shows the tank, the loading pipe, and the unloading pipe provided in the ship which concerns on embodiment of this disclosure, and is the cross-sectional view taken along the line II-II of FIG. It is sectional drawing which shows the state which the liquefied carbon dioxide is loaded into the tank from the loading pipe in the ship which concerns on embodiment of this disclosure. It is sectional drawing which shows the state which the liquefied carbon dioxide in a tank is discharged by the unloading pipe in the ship which concerns on embodiment of this disclosure. It is sectional drawing which shows the tank, the loading pipe, and the unloading pipe which concerns on the modification of embodiment of this disclosure.
- the floating vessel 1 carries liquefied carbon dioxide.
- the ship 1 includes at least a hull 2 as a floating body and a tank facility 10.
- the hull 2 has a pair of side sides 3A and 3B forming its outer shell, a ship bottom (not shown), and an upper deck 5.
- the side 3A and 3B have a pair of side outer plates forming the left and right side respectively.
- the bottom of the ship (not shown) has a bottom outer plate connecting these side 3A and 3B. Due to these pair of sideways 3A and 3B and the bottom of the ship (not shown), the outer shell of the hull 2 has a U-shape in a cross section orthogonal to Da in the stern direction.
- the upper deck 5 exemplified in this embodiment is a whole deck exposed to the outside.
- an upper structure 7 having a living area is formed on the upper deck 5 on the stern 2b side.
- a cargo loading section (hold) 8 is formed on the bow 2a side of the upper structure 7.
- the cargo loading section 8 is recessed toward the bottom of the ship below the upper deck 5 and opens upward.
- a plurality of tank facilities 10 are arranged in the cargo loading section 8 along the stern direction Da.
- two tank equipment 10s are arranged at intervals in the ship's tail direction Da.
- the tank equipment 10 includes at least a tank 11 and a lower piping portion 20 connected to a lower portion 11b of the tank 11.
- the tank 11 is arranged on the hull 2.
- the tank 11 has, for example, a cylindrical shape extending in the horizontal direction.
- the tank 11 contains the liquefied carbon dioxide L inside.
- the tank body includes a tubular portion 12 and an end spherical portion 13.
- the tubular portion 12 extends in the horizontal direction as the longitudinal direction Dx.
- the tubular portion 12 is formed in a cylindrical shape having a circular cross-sectional shape orthogonal to the longitudinal direction Dx.
- the end spherical portions 13 are arranged at both ends of the tubular portion 12 in the longitudinal direction Dx.
- Each end spherical portion 13 is hemispherical and closes the openings at both ends of the longitudinal Dx of the tubular portion 12.
- the tank 11 is not limited to a cylindrical shape, and the tank 11 may be spherical, square, or the like.
- the lower piping section 20 includes a connecting piping 21, a loading piping 22, a unloading piping 23, a pump 24, and switching valves 25A, 25B, 25C.
- connection pipe 21 connects the tank 11, the loading pipe 22, and the unloading pipe 23.
- One end 21a of the connection pipe 21 is connected to the lower portion 11b of the tank 11.
- the lower portion 11b of the tank 11 means a lower side than the intermediate position 11m of the vertical Dv of the tank 11.
- one end 21a of the connecting pipe 21 is connected to a bottom portion 11d including the bottom of the tank 11.
- One end 21a of the connection pipe 21 is connected to the bottom portion 11d of the tank 11 from below, which is the outside of the tank 11.
- One end 21a of the connecting pipe 21 is open in the tank 11 upward in the vertical direction Dv.
- the connection pipe 21 extends downward from one end 21a connected to the bottom 11d of the tank 11.
- the position where one end 21a of the connection pipe 21 is connected to the tank 11 is preferably set at the lower portion 11b of the tank 11 and within a range that satisfies the following formula (1).
- Pt Normal minimum pressure (kPaG) of tank 11
- TP Triple point pressure (kPaG) of liquefied carbon dioxide L contained in tank 11.
- ⁇ Liquid density of liquefied carbon dioxide L (kg / m 3 )
- g Gravity acceleration (m / s 2 )
- h 0, which satisfies the above equation (1).
- the other end 21b of the connecting pipe 21 is branched and connected to the loading pipe 22 and the unloading pipe 23.
- the loading pipe 22 is connected to the bottom portion 11d (lower portion 11b) of the tank 11 via the connecting pipe 21.
- the loading pipe 22 loads the liquefied carbon dioxide L supplied from the outside of the hull 2 into the tank 11.
- the unloading pipe 23 is connected to the bottom portion 11d (lower portion 11b) of the tank 11 via the connecting pipe 21.
- the unloading pipe 23 unloads the liquefied carbon dioxide L in the tank 11 by sending the liquefied carbon dioxide L in the tank 11 to the outside of the hull 2.
- the pump 24 is arranged in the unloading pipe 23 outside the tank 11. The pump 24 sucks out the liquefied carbon dioxide L in the tank 11 through the unloading pipe 23 and the connecting pipe 21 and sends it out to the outside of the hull 2.
- the piping layout of the connecting pipe 21, the loading pipe 22, and the unloading pipe 23 constituting the lower piping portion 20 is not limited in any way, but the connecting pipe 21, the loading pipe 22, and the unloading pipe 23 are not limited.
- the pipe top which is the highest position in the middle of the pipe, is arranged at a high position in the vertical direction Dv, the pressure of the liquefied carbon dioxide L at the pipe top becomes lower than the pressure of the liquefied carbon dioxide in the tank 11. Therefore, it is preferable to lay out the connecting pipe 21, the loading pipe 22, and the unloading pipe 23 as a whole at a position lower than the bottom 11d of the tank 11.
- the switching valve 25A is arranged in the connecting pipe 21.
- the switching valve 25B is arranged in the loading pipe 22.
- the switching valve 25C is arranged in the unloading pipe 23.
- the switching valves 25A, 25B, and 25C selectively switch the connection destination of the connecting pipe 21 to either the loading pipe 22 or the unloading pipe 23.
- the loading pipe 22 is connected to the connecting pipe 21 by opening the switching valve 25A and the switching valve 25B and closing the switching valve 25C.
- the unloading pipe 23 is connected to the connecting pipe 21 by opening the switching valve 25A and the switching valve 25C and closing the switching valve 25B.
- a dome structure 18 is arranged at the top 11t of the tank 11.
- a pipe pipe for taking in and out carbon dioxide gas
- a connection portion of an instrumentation pipe (not shown) to the tank 11, and other equipment are arranged. Examples of various instrumentations include a gas component detection sensor in the tank 11.
- the loading pipe and unloading pipe are at the top of the tank according to the IGC Code (International Gas Carrier Code: International Regulations on Ship Structure and Equipment for Bulk Transport of Liquefied Gas). Is required to connect to.
- the connection position of the loading pipe 22 and the unloading pipe 23 is not limited to the top 11t of the tank 11. Therefore, the above configuration is feasible.
- the loading pipe 22 and the unloading pipe 23 are connected to the lower portion 11b of the tank 11.
- the height of the highest position of the loading pipe 22 and the unloading pipe 23 can be suppressed as compared with the case where the loading pipe 22 and the unloading pipe 23 are connected to the top 11t of the tank 11.
- the pressure of the liquefied carbon dioxide L at the highest position of the loading pipe 22 and the unloading pipe 23 is higher than the pressure of the liquefied carbon dioxide L stored in the tank 11. Therefore, the pressure drop of the liquefied carbon dioxide L at the highest position of the loading pipe 22 and the unloading pipe 23 is suppressed.
- the pressure of the liquefied carbon dioxide L at the highest position of the loading pipe 22 and the unloading pipe 23 is suppressed from approaching the triple point pressure.
- the loading pipe 22 and the unloading pipe 23 are connected to the lower portion 11b of the tank 11, it is necessary to connect the loading pipe 22 and the unloading pipe 23 to the dome structure 18 arranged at the top 11t of the tank 11. There is no. This makes it possible to reduce the size of the dome structure 18 and increase the strength of the tank 11 structure in order to increase the operating pressure of the tank 11. Further, it is not necessary to arrange the loading pipe 22 and the unloading pipe 23 in the tank 11 from the top portion 11t to the bottom portion 11d. Therefore, it is not necessary to provide a support structure for supporting the loading pipe 22 and the unloading pipe 23 in the tank 11. Further, the pump 24 can be provided in the middle of the pipe arranged outside the tank 11.
- the loading pipe 22 and the unloading pipe 23 are connected to the lower portion 11b of the tank 11 via the connecting pipe 21. Therefore, compared to a configuration in which both the loading pipe 22 and the unloading pipe 23 are directly connected to the lower portion 11b of the tank 11, only one connecting pipe 21 needs to be connected to the lower portion 11b of the tank 11.
- the connection work can be easily performed.
- the work of connecting the loading pipe 22 and the unloading pipe 23 to the connecting pipe 21 can be performed outside the tank 11. Also in this respect, the pipe connection work can be easily performed.
- one end 21a of the connecting pipe 21 is connected to the bottom portion 11d of the tank 11 from the outside of the tank 11 and opens upward in the tank 11.
- the liquefied carbon dioxide L in the tank 11 flows into the unloading pipe 23 from the opening of one end 21a of the connecting pipe 21 via the connecting pipe 21 due to its own weight. Therefore, the liquefied carbon dioxide L in the tank 11 can be efficiently discharged.
- connection pipe 21 is connected to the bottom 11d of the tank 11, but the present invention is not limited to this. If the lower portion 11b of the tank 11 is used, the one end 21a of the connecting pipe 21 may be arranged above the bottom portion 11d. Also in this case, it is preferable to set the connection position of the connection pipe 21 so that the above formula (1) is satisfied.
- connection position of the connection pipe 21B to the tank 11 may be the lower portion 11b of the tank 11 and above the bottom portion 11d.
- the height h of the connection position of the connection pipe 21B to the tank 11 satisfies the above equation (1).
- the connection pipe 21B may be extended downward in the tank 11 and the tip portion 21s may be arranged in the tank 11 in the vicinity of the bottom portion 11d.
- the loading pipe 22 and the unloading pipe 23 are connected to the lower portion 11b (bottom portion 11d) of the tank 11 via the connecting pipe 21, but the present invention is not limited to this.
- the loading pipe 22 and the unloading pipe 23 may be directly connected to the tank 11, respectively.
- FIG. 2 for convenience of illustration, the case where the loading pipe 22 is arranged above the unloading pipe 23 is shown in FIG. 2, but the vertical direction between the loading pipe 22 and the unloading pipe 23 is shown.
- the positional relationship in is not limited to such a positional relationship.
- the loading pipe 22 may be arranged below the unloading pipe 23, or the loading pipe 22 and the unloading pipe 23 may be viewed from the horizontal direction. May be arranged so as to overlap.
- the number and arrangement of the tank equipment 10 is not limited to the number and arrangement exemplified in the above embodiment.
- only one tank facility 10 may be provided, or three or more tank facilities 10 may be provided.
- the case where a plurality of tank equipment 10s are arranged side by side in the stern direction Da is illustrated, but the tank equipments 10 may be arranged side by side in the ship width direction (in other words, the port side direction). ..
- the ship 1 is exemplified as a floating body, but the present invention is not limited to this.
- the floating body may be an offshore floating body facility without a propulsion mechanism.
- the floating body 1 is connected to a floating body main body 2, a tank 11 arranged in the floating body main body 2 and capable of storing liquefied carbon dioxide L, and a lower portion 11b of the tank 11, and the floating body.
- Examples of the floating body 1 include ships and offshore floating body equipment.
- Examples of the floating body 2 include a hull and a floating body of offshore floating equipment.
- the loading pipe 22 and the unloading pipe 23 are connected to the lower portion 11b of the tank 11.
- the height of the highest position of the loading pipe 22 and the unloading pipe 23 can be suppressed as compared with the case where the loading pipe 22 and the unloading pipe 23 are connected from the upper part of the tank 11 into the tank 11. .. Therefore, it is possible to prevent the pressure of the liquefied carbon dioxide L at the highest position of the loading pipe 22 and the unloading pipe 23 from approaching the triple point pressure. As a result, it is possible to prevent the liquefied carbon dioxide L from solidifying in the loading pipe 22 and the unloading pipe 23 to generate dry ice.
- the loading pipe 22 and the unloading pipe 23 are connected to the lower portion 11b of the tank 11, it is necessary to arrange the loading pipe 22 and the unloading pipe 23 in the dome structure 18 arranged at the top 11t of the tank 11. There is no. This makes it possible to reduce the size of the dome structure 18 and increase the strength of the tank 11 structure in order to increase the operating pressure of the tank 11. Further, it is not necessary to arrange the loading pipe 22 and the unloading pipe 23 in the tank 11 from the top portion 11t to the bottom portion 11d. Therefore, it is possible to suppress the need to provide a support member or the like for supporting the loading pipe 22 and the unloading pipe 23 in the tank 11. Further, the pump 24 is arranged outside the tank 11. Therefore, maintenance of the pump 24 can be performed outside the tank 11.
- the maintainability of the pump 24 is improved.
- a pump generally applied in liquefied carbon dioxide equipment on land such as a centrifugal pump or a reciprocating pump, which is cheaper than the deep well pump installed in the tank 11, can be used. Therefore, there is an advantage that the choice of the type of pump is increased and the degree of freedom in design can be improved.
- the floating body 1 according to the second aspect is the floating body 1 of (1), one end 21a is connected to the lower portion 11b of the tank 11, and the other end 21b is the loading pipe 22 and the unloading pipe. Further provided are a connection pipe 21 connected to 23, and switching valves 25A, 25B, 25C for selectively switching the connection destination of the connection pipe 21 to either the loading pipe 22 or the unloading pipe 23.
- the loading pipe 22 and the unloading pipe 23 are connected to the lower portion 11b of the tank 11 via the connecting pipe 21.
- the loading pipe 22 and the unloading pipe 23 are connected to the lower portion 11b of the tank 11 via the connecting pipe 21. Therefore, compared with the configuration in which both the loading pipe 22 and the unloading pipe 23 are directly connected to the lower portion 11b of the tank 11, only the connecting pipe 21 needs to be connected to the lower portion 11b of the tank 11, and the pipe connection work can be performed. It can be done easily.
- the work of connecting the loading pipe 22 and the unloading pipe 23 to the connecting pipe 21 can be performed outside the tank 11. Also in this respect, the pipe connection work can be easily performed.
- the floating body 1 according to the third aspect is the floating body 1 of (2), and one end 21a of the connecting pipe 21 is connected to the bottom portion 11d of the tank 11 from the outside of the tank 11 and is connected to the bottom portion 11d of the tank 11. It opens upward in 11.
- the liquefied carbon dioxide L in the tank 11 flows into the unloading pipe 23 from the opening of one end 21a of the connecting pipe 21 via the connecting pipe 21 due to its own weight. As a result, the liquefied carbon dioxide L in the tank 11 can be efficiently discharged.
- the floating body of the present disclosure it is possible to suppress the generation of dry ice in the loading pipe and the unloading pipe, and to reduce the size of the dome structure, simplify the pipe structure, and facilitate maintenance.
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Abstract
Description
本願は、2020年10月28日に、日本に出願された特願2020-180558号に基づき優先権を主張し、その内容をここに援用する。
さらに、特許文献1に開示されたような構成では、揚荷用の配管に、ポンプ(ディープウェルポンプ)が配置されている。ポンプは、液化二酸化炭素の液中に没する位置に配置される。そのため、ポンプのメンテナンス等を行う際には、タンク内の液をすべて取り出した後、温度調節および酸素供給を行い、ポンプへアクセスできる環境を構築しなければならず、手間が掛かる。
(船舶の構成)
図1に示すように、本開示の実施形態において、浮体である船舶1は、液化二酸化炭素を運搬する。この船舶1は、浮体本体としての船体2と、タンク設備10と、を少なくとも備えている。
船体2は、その外殻をなす、一対の舷側3A,3Bと、船底(図示無し)と、上甲板5と、を有している。舷側3A,3Bは、左右舷側をそれぞれ形成する一対の舷側外板を有する。船底(図示無し)は、これら舷側3A,3Bを接続する船底外板を有する。これら一対の舷側3A,3B及び船底(図示無し)により、船体2の外殻は、船首尾方向Daに直交する断面において、U字状を成している。この実施形態で例示する上甲板5は、外部に露出する全通甲板である。船体2には、船尾2b側の上甲板5上に、居住区を有する上部構造7が形成されている。
タンク設備10は、貨物搭載区画8内に、船首尾方向Daに沿って、複数が配置されている。本開示の実施形態において、タンク設備10は、船首尾方向Daに間隔を空けて二個配置されている。
この実施形態において、タンク11は、船体2に配置されている。タンク11は、例えば、水平方向に延びる円筒状をなす。タンク11は、その内部に液化二酸化炭素Lを収容する。タンク本体は、筒状部12と、端部球状部13と、を備えている。筒状部12は、水平方向を長手方向Dxとして延びている。この実施形態において、筒状部12は、長手方向Dxに直交する断面形状が円形の、円筒状に形成されている。端部球状部13は、筒状部12の長手方向Dxの両端部にそれぞれ配置されている。各端部球状部13は、半球状で、筒状部12の長手方向Dx両端の開口を閉塞している。なお、タンク11は、円筒状に限られるものではなく、タンク11は球形、方形等であってもよい。
h<(Pt-TP)・1000/ρg ・・・(1)
ただし、
h:タンク11の最下部から接続配管21の接続位置までの高さ(m)
Pt:タンク11の常用最低圧力(kPaG)
TP:タンク11に収容される液化二酸化炭素Lの三重点圧力(kPaG)
ρ:液化二酸化炭素Lの液密度(kg/m3)
g:重力加速度(m/s2)
なお、図2では、接続配管21の一端21aがタンク11の底部11d(最下部)に接続されているので、h=0であり、上式(1)を満足している。
積込配管22は、接続配管21を介してタンク11の底部11d(下部11b)に接続されている。積込配管22は、船体2の外部から供給される液化二酸化炭素Lをタンク11内に積み込む。
ポンプ24は、タンク11の外部で揚荷配管23に配置されている。ポンプ24は、揚荷配管23、接続配管21を通してタンク11内の液化二酸化炭素Lを吸い出し、船体2の外部に送り出す。
また、タンク設備10は、タンク11内の液化二酸化炭素Lを揚げ荷する際、図4に示すように、切換弁25A及び切換弁25Cを開とし、切換弁25Bを閉とする。これにより、揚荷配管23が、接続配管21を介してタンク11内に連通する。この状態で、ポンプ24を作動させ、タンク11内の液化二酸化炭素Lを吸い出し、船外に送出する。
上述したような船舶1によれば、積込配管22及び揚荷配管23がタンク11の下部11bに接続されている。これにより、タンク11の頂部11tに積込配管22及び揚荷配管23を接続する場合に比較し、積込配管22及び揚荷配管23の最も高い位置の高さを抑えることができる。積込配管22及び揚荷配管23の最も高い位置における液化二酸化炭素Lの圧力は、タンク11内に貯留される液化二酸化炭素Lの圧力よりも高くなる。したがって、積込配管22及び揚荷配管23の最も高い位置における液化二酸化炭素Lの圧力低下が抑えられる。その結果、積込配管22及び揚荷配管23の最も高い位置における液化二酸化炭素Lの圧力が、三重点圧力に近づくことが抑えられる。これにより、積込配管22及び揚荷配管23内で液化二酸化炭素Lが凝固してドライアイスが生成されることが抑えられる。
その結果、積込配管22内でドライアイスが生成されるのを抑えるとともに、ドーム構造18の小型化、配管構造の簡素化、メンテナンスの容易化を図ることができる。
以上、本開示の実施の形態について図面を参照して詳述したが、具体的な構成はこの実施の形態に限られるものではなく、本開示の要旨を逸脱しない範囲の設計変更等も含まれる。
なお、上記実施形態では、接続配管21の一端21aを、タンク11の底部11dに接続するようにしたが、これに限られない。接続配管21の一端21aは、タンク11の下部11bであれば、底部11dよりも上方位置に配置するようにしてもよい。この場合も、上記式(1)は満足するよう、接続配管21の接続位置を設定するのが好ましい。
また、上記実施形態では、浮体として船舶1を例示したが、これに限られない。浮体は、推進機構を備えない洋上浮体設備であってもよい。
実施形態に記載の浮体1は、例えば以下のように把握される。
浮体1の例としては、船舶や洋上浮体設備が挙げられる。浮体本体2の例としては、船体や洋上浮体設備の浮体本体が挙げられる。
また、積込配管22及び揚荷配管23がタンク11の下部11bに接続されているので、タンク11の頂部11tに配置するドーム構造18内に積込配管22及び揚荷配管23を配置する必要が無い。これにより、タンク11の運用圧を高めるために、ドーム構造18を小型化してタンク11構造の強度を高めることが可能となる。また、タンク11内で頂部11tから底部11dに亘って積込配管22及び揚荷配管23を配置する必要が無い。そのため、タンク11内で積込配管22及び揚荷配管23を支持するためのサポート部材等を設ける必要性が抑えられる。また、ポンプ24がタンク11の外部に配置されている。そのため、タンク11の外部でポンプ24のメンテナンスを行うことが可能となる。したがって、ポンプ24のメンテナンス性が向上する。
その結果、積込配管22、揚荷配管23内でドライアイスが生成されるのを抑えるとともに、ドーム構造18の小型化、配管構造の簡素化、メンテナンスの容易化を図ることができる。
なお、上記ポンプ24としては、タンク11内に設置するディープウェルポンプよりも安価な遠心ポンプや往復動ポンプ等、陸上の液化二酸化炭素設備で一般的に適用されているポンプを用いることができる。そのため、ポンプの種類について選択肢が増えて、設計自由度を向上できるという利点もある。
Claims (3)
- 浮体本体と、
前記浮体本体に配置され、液化二酸化炭素を貯留可能なタンクと、
前記タンクの下部に接続され、前記浮体本体の外部から供給される液化二酸化炭素を前記タンク内に積み込む積込配管と、
前記タンクの下部に接続された揚荷配管と、
前記タンクの外部で前記揚荷配管に配置され、前記タンク内の液化二酸化炭素を前記浮体本体の外部に送り出すポンプと、を備える
浮体。 - 一端が前記タンクの下部に接続され、他端が前記積込配管及び前記揚荷配管に接続された接続配管と、
前記接続配管の接続先を前記積込配管および前記揚荷配管のいずれか一方に選択的に切り換える切換弁と、を更に備え、
前記積込配管及び前記揚荷配管は、前記接続配管を介して前記タンクの下部に接続されている
請求項1に記載の浮体。 - 前記接続配管の一端は、前記タンクの外部から前記タンクの底部に接続され、前記タンク内で上方に向けて開口している
請求項2に記載の浮体。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21886351.2A EP4197894A4 (en) | 2020-10-28 | 2021-10-28 | FLOATING BODY |
| CN202180055093.6A CN116113574A (zh) | 2020-10-28 | 2021-10-28 | 浮体 |
| AU2021369256A AU2021369256B2 (en) | 2020-10-28 | 2021-10-28 | Floating Structure |
| KR1020237007485A KR20230042516A (ko) | 2020-10-28 | 2021-10-28 | 부체 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020-180558 | 2020-10-28 | ||
| JP2020180558A JP7580241B2 (ja) | 2020-10-28 | 2020-10-28 | 浮体 |
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| Publication Number | Publication Date |
|---|---|
| WO2022092234A1 true WO2022092234A1 (ja) | 2022-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2021/039905 Ceased WO2022092234A1 (ja) | 2020-10-28 | 2021-10-28 | 浮体 |
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|---|---|
| EP (1) | EP4197894A4 (ja) |
| JP (1) | JP7580241B2 (ja) |
| KR (1) | KR20230042516A (ja) |
| CN (1) | CN116113574A (ja) |
| AU (1) | AU2021369256B2 (ja) |
| WO (1) | WO2022092234A1 (ja) |
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| JP2025002655A (ja) * | 2023-06-23 | 2025-01-09 | 三菱造船株式会社 | 船舶、船舶の二酸化炭素荷役方法 |
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| WO2008097099A1 (en) * | 2007-02-08 | 2008-08-14 | Knutsen Oas Shipping As | Method and device for transport of gas |
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| KR101378995B1 (ko) * | 2012-03-22 | 2014-04-02 | 삼성중공업 주식회사 | 이산화탄소 운영 시스템 및 방법 |
| KR101378796B1 (ko) * | 2012-08-01 | 2014-03-28 | 대우조선해양 주식회사 | 이산화탄소 운반선의 하역 시스템 |
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-
2021
- 2021-10-28 WO PCT/JP2021/039905 patent/WO2022092234A1/ja not_active Ceased
- 2021-10-28 EP EP21886351.2A patent/EP4197894A4/en active Pending
- 2021-10-28 KR KR1020237007485A patent/KR20230042516A/ko active Pending
- 2021-10-28 AU AU2021369256A patent/AU2021369256B2/en active Active
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| CN116113574A (zh) | 2023-05-12 |
| AU2021369256B2 (en) | 2024-06-13 |
| JP2022071533A (ja) | 2022-05-16 |
| AU2021369256A1 (en) | 2023-04-06 |
| EP4197894A4 (en) | 2024-01-24 |
| JP7580241B2 (ja) | 2024-11-11 |
| KR20230042516A (ko) | 2023-03-28 |
| EP4197894A1 (en) | 2023-06-21 |
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