WO2022250061A1 - 液化ガス貯蔵設備及び船舶 - Google Patents
液化ガス貯蔵設備及び船舶 Download PDFInfo
- Publication number
- WO2022250061A1 WO2022250061A1 PCT/JP2022/021285 JP2022021285W WO2022250061A1 WO 2022250061 A1 WO2022250061 A1 WO 2022250061A1 JP 2022021285 W JP2022021285 W JP 2022021285W WO 2022250061 A1 WO2022250061 A1 WO 2022250061A1
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- WO
- WIPO (PCT)
- Prior art keywords
- liquefied gas
- pipe
- valve
- suction
- storage tank
- Prior art date
Links
- 239000007789 gas Substances 0.000 claims description 229
- 239000007788 liquid Substances 0.000 claims description 21
- 239000011261 inert gas Substances 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000008016 vaporization Effects 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000003949 liquefied natural gas Substances 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B11/00—Interior subdivision of hulls
- B63B11/04—Constructional features of bunkers, e.g. structural fuel tanks, or ballast tanks, e.g. with elastic walls
-
- 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
-
- 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
-
- 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
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/14—Use of propulsion power plant or units on vessels the vessels being motor-driven relating to internal-combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0206—Non-hydrocarbon fuels, e.g. hydrogen, ammonia or carbon monoxide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0245—High pressure fuel supply systems; Rails; Pumps; Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
-
- 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
-
- 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
- F17C13/04—Arrangement or mounting of valves
-
- 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
-
- 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
- F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
-
- 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
-
- 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
-
- 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
-
- 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
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/03—Treating the boil-off
- F17C2265/031—Treating the boil-off by discharge
-
- 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
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/06—Fluid distribution
- F17C2265/066—Fluid distribution for feeding engines for propulsion
-
- 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
-
- 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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system
Definitions
- This disclosure relates to liquefied gas storage facilities and ships.
- the liquefied gas is stored in a vapor-liquid equilibrium state, and the air layer pressure in the tank is equal to the saturated vapor pressure of the liquefied gas.
- the storage tank is constantly exposed to external heat, which causes the liquefied gas to evaporate and produce boil-off gas.
- the temperature of the liquefied gas is kept constant because the heat coming in from the outside and the heat outflow as latent heat of vaporization due to boil-off are balanced.
- the temperature of the liquefied gas will gradually rise because the latent heat of vaporization associated with boil-off will not flow out. Since the saturated vapor pressure also rises, the tank internal air layer pressure also rises as the liquid temperature rises. If the liquefied gas temperature in the tank is always uniform, this pressure rise will be relatively slow. Since the high-temperature layer and the gas-liquid equilibrium state occur, the pressure of the air layer in the tank rises rapidly.
- Patent Document 1 proposes a device for injecting liquefied gas sucked by a pump onto the surface of the liquefied gas. According to this device, it is possible to suppress the generation of a high-temperature layer and suppress the increase in pressure in the storage tank. Further, in the invention described in Patent Document 1, the liquefied gas can be injected through the discharge pipe connected to the cargo pump, and the liquefied gas can be injected through the discharge pipe connected to the spray pump. is configured as
- the piping attached to the storage tank that is, the piping extending from the inside of the storage tank to the outside, is always provided with a "first valve" (sometimes called a “tank-mounted valve”).
- the first valve is a valve provided on a pipe extending from the inside of the storage tank to the outside, and is closest to the suction/discharge port (including the suction port and the discharge port) located in the storage tank of the pipe. Say the valve.
- the first valve may be located inside or outside the storage tank. When the emergency shutdown system is activated, the first valve is closed to prevent the liquefied gas and boil-off gas stored in the storage tank from being discharged to the outside.
- the discharge pipe connected to the cargo pump is provided with a valve for switching between carrying in and carrying out the liquefied gas. (not illustrated in Patent Document 1).
- a discharge pipe connected to the spray pump is provided with a valve for switching whether or not to inject the liquefied gas (not shown in Patent Document 1).
- These valves correspond to the "first valve", but they are all located upstream of the part that injects the liquefied gas. Therefore, when the emergency shutdown system is activated and the first valve is closed, the liquefied gas cannot be injected.
- the liquefied gas is injected (released) toward the surface of the liquefied gas stored in the storage tank. (in liquid). Even in this case, convection occurs in the liquefied gas stored in the storage tank, and the generation of a high-temperature layer can be suppressed.
- the present disclosure has been made in view of such circumstances, and a liquefied gas storage facility capable of discharging liquefied gas to the surface or into the liquid even when the first valve is closed, and the liquefied gas. It is intended to provide ships with storage facilities.
- a liquefied gas storage facility includes a storage tank that stores liquefied gas, and a suction port that sucks the liquefied gas inside the storage tank, and the inside of the storage tank and the outside of the storage tank.
- an upper pipe extending from the upper part of the storage tank toward the outside of the storage tank, the suction pipe having a suction port located at the upper part of the storage tank; a suction pipe first valve that is a first valve; an upper pipe first valve that is a first valve provided in the upper pipe; and a portion of the suction pipe closer to the suction port than the suction pipe first valve.
- a connection pipe that connects a portion of the upper pipe closer to the suction port side than the upper pipe first valve, and a connection valve provided in the connection pipe, wherein the suction pipe first valve and the upper pipe second valve are provided. 1 valve is closed and the connection valve is opened, the liquefied gas sucked from the suction port flows through the suction pipe, the connection pipe, and the upper pipe in this order, and then the surface of the liquefied gas or the liquid released inside.
- a ship according to an aspect of the present disclosure includes the liquefied gas storage facility described above.
- the suction pipe first valve and the upper pipe first valve which are the first valves, are closed, if the connection valve is opened, the liquefied gas sucked from the suction port is transferred to the suction pipe, the connection pipe, and the , flows through the upper pipe and is released to the surface or into the liquid of the liquefied gas. That is, the liquefied gas can be released to the surface of the liquefied gas or into the liquid even when the first valve is closed.
- FIG. 1 is a schematic diagram of a liquefied gas storage facility according to the first embodiment.
- FIG. 2 is a schematic diagram of a liquefied gas storage facility according to the second embodiment.
- FIG. 3 is a schematic diagram of a liquefied gas storage facility according to the third embodiment.
- the liquefied gas storage facility 100 is a facility for storing the liquefied gas 101 .
- the liquefied gas storage facility 100 is mounted on a ship.
- the liquefied gas storage facility 100 may be installed on land.
- FIG. 1 is a schematic diagram of a liquefied gas storage facility 100 according to the first embodiment.
- the liquefied gas storage facility 100 includes a storage tank 10, a liquefied gas carrying-out pipe 11, a suction pump 12, a suction pipe 13, a suction pipe first valve 14, an upper A pipe 15 , an upper pipe first valve 16 , a connecting pipe 18 , a connecting valve 19 , and an inert gas supply pipe 20 are provided.
- a storage tank 10 a liquefied gas carrying-out pipe 11
- suction pump 12 a suction pipe 13
- suction pipe first valve 14 an upper A pipe 15
- an upper pipe first valve 16 a connecting pipe 18
- a connecting valve 19 a connecting valve 19
- the storage tank 10 is a tank that stores the liquefied gas 101.
- the liquefied gas 101 includes liquefied petroleum gas (LPG), liquefied natural gas (LNG), liquefied hydrogen, methanol, liquefied ammonia, and the like.
- LPG liquefied petroleum gas
- LNG liquefied natural gas
- the liquefied gas 101 may be a low-temperature liquefied gas stored at a low temperature, or may be another liquefied gas.
- the upper part of the storage tank 10 is filled with a boil-off gas 102 obtained by vaporizing the liquefied gas 101 .
- the liquefied gas carrying out pipe 11 is located outside the storage tank 10 and is a pipe for carrying out the liquefied gas 101 to the outside of the liquefied gas storage facility 100 .
- a ship equipped with the liquefied gas storage facility 100 according to this embodiment includes an engine that generates power for propelling the ship.
- a liquefied gas delivery pipe 11 carries liquefied gas 101 towards this engine. The engine is driven by using the liquefied gas 101 or gas obtained by vaporizing the liquefied gas 101 as fuel. However, in order to unload the liquefied gas 101, the liquefied gas carrying-out pipe 11 may carry out the liquefied gas 101, for example, toward an external storage facility.
- the suction pump 12 is a pump that sucks the liquefied gas 101 .
- a suction pump 12 is arranged inside the storage tank 10 .
- the suction pump 12 is positioned near the bottom of the storage tank 10 and sucks the liquefied gas 101 positioned near the bottom of the storage tank 10 .
- some of the components of the suction pump 12 such as the motor, may be located outside the storage tank 10 .
- the suction pipe 13 is a pipe extending from the suction pump 12 toward the outside of the storage tank 10 .
- the suction pipe 13 sucks the liquefied gas 101 from the suction port 21 located at the connection with the suction pump 12 .
- the suction pipe 13 is connected to the liquefied gas discharge pipe 11 .
- the black arrows in FIG. 1 indicate the flow of liquefied gas 101 during normal operation (when the emergency shutdown system is not activated). This point also applies to FIG.
- the liquefied gas 101 sucked from the suction port 21 is transferred to the outside of the liquefied gas storage facility 100 through the suction pipe 13 and the liquefied gas carry-out pipe 11 by opening the suction pipe first valve 14, which will be described later. transported to
- the suction pipe first valve 14 is the first valve provided in the suction pipe 13 .
- the first valve 14 of the suction pipe is automatically closed, and the liquefied gas 101 stored in the storage tank 10 is discharged to the outside. be prevented.
- the suction pipe first valve 14 may be closed even when the emergency shutdown system is not operating.
- the upper pipe 15 is a pipe extending from the upper part inside the storage tank 10 toward the outside of the storage tank 10 .
- the upper pipe 15 is connected to the liquefied gas discharge pipe 11 .
- the upper piping 15 also includes a distribution section 17 positioned at the top within the storage tank 10 .
- the distribution portion 17 extends horizontally and has a plurality of suction/discharge ports 22 formed therein.
- the suction/discharge port 22 may be a small-diameter opening directly formed in the distribution portion 17, and is formed at the tip of a nozzle such as a jet nozzle, a shower nozzle, or a spray nozzle provided at a plurality of locations in the distribution portion 17. It may also be an opening with an opening.
- the liquefied gas 101 flowing through the liquefied gas discharge pipe 11 flows into the upper pipe 15 and is discharged from the inlet/outlet port 22 of the distributor 17 by opening the upper pipe first valve 16 , which will be described later.
- the upper pipe first valve 16 is the first valve provided in the upper pipe 15 .
- the first valve 16 of the upper pipe is automatically closed to prevent the liquefied gas stored in the storage tank 10 from being discharged to the outside.
- the upper piping first valve 16 may be closed even when the emergency shutdown system is not operating.
- the connection pipe 18 is a pipe that connects the suction pipe 13 and the upper pipe 15 .
- the connecting pipe 18 of the present embodiment connects a portion of the suction pipe 13 closer to the suction port 21 than the first valve 14 of the suction pipe and a portion of the upper pipe 15 closer to the suction port 22 than the first valve 16 of the upper pipe.
- the connecting pipe 18 is positioned outside the storage tank 10 and is positioned closer to the storage tank 10 than the suction pipe first valve 14 and the upper pipe first valve 16 .
- connection valve 19 is a valve provided on the connection pipe 18 . Since the connecting pipe 18 is not a pipe extending from the inside of the storage tank 10 to the outside, the connecting valve 19 provided in the connecting pipe 18 does not correspond to the "first valve".
- the connection valve 19 of this embodiment is configured to automatically open and close. For example, when a predetermined condition is met and the emergency shutoff system is activated, the suction pipe first valve 14 and the upper pipe first valve 16 are closed, and at this time, the connection valve 19 is automatically opened. good too.
- the connection valve 19 may be configured to be manually opened and closed.
- the inert gas supply pipe 20 is a pipe for supplying an inert gas such as nitrogen to the storage tank 10.
- the inert gas supply pipe 20 of this embodiment is directly connected to the storage tank 10 .
- the inert gas supply pipe 20 may be configured to be connected to, for example, the upper pipe 15 and supply the inert gas to the storage tank 10 via the upper pipe 15 .
- the explosion can be prevented by supplying an inert gas to the storage tank 10 .
- the liquefied gas storage facility 100 has the above configuration. Therefore, when the emergency shutdown system is activated and the suction pipe first valve 14 and the upper pipe first valve 16, which are the first valves, are closed, if the connection valve 19 is opened, the liquid will liquefy as indicated by the white arrow in FIG. Gas 101 flows. That is, when the suction pipe first valve 14 and the upper pipe first valve 16 are closed and the connection valve 19 is opened, the liquefied gas 101 sucked from the suction port 21 of the suction pipe 13 is transferred to the suction pipe 13, the connection pipe 18, and the , the upper pipe 15 in this order, and then discharged to the surface of the liquefied gas 101 from the inlet/outlet 22 of the distributor 17 . However, when the storage tank 10 is fully loaded, the liquefied gas 101 is discharged into the liquid of the liquefied gas 101 from the intake/discharge port 22 of the distribution section 17 .
- the liquefied gas storage facility 100 for example, when the first valve (suction pipe first valve 14 and upper pipe first valve 16) is closed due to the operation of the emergency shutdown system, can also release the liquefied gas 101 onto the surface of the liquefied gas 101 or into the liquid. As a result, even when the first valve is closed, it is possible to suppress the formation of a high-temperature layer on the surface of the liquefied gas 101 and suppress the increase in the internal pressure of the storage tank 10 .
- the connecting pipe 18 and the connecting valve 19 of the present embodiment are positioned outside the storage tank 10 , but may be positioned inside the storage tank 10 .
- the arrangement of piping outside the storage tank 10 can be simplified. This point is the same in a second embodiment and a third embodiment, which will be described later.
- the liquefied gas 101 is released via the distribution unit 17, but the liquefied gas 101 may be directly released without the distribution unit 17. That is, in the liquefied gas storage facility 100 according to this embodiment, the distribution section 17 may be omitted. In this case, for example, the lower end portion of the upper pipe 15 becomes the suction/discharge port 22 . This point is the same in the second embodiment described later. Even with such a configuration, it is possible to suppress the formation of a high-temperature layer on the surface of the liquefied gas 101 and suppress the increase in the internal pressure of the storage tank 10 .
- FIG. 2 is a schematic diagram of a liquefied gas storage facility 200 according to the second embodiment.
- components of the liquefied gas storage facility 200 according to the second embodiment those that are the same as or correspond to the components of the liquefied gas storage facility 100 according to the first embodiment are denoted by the same reference numerals in FIG. omitted.
- the liquefied gas storage facility 200 includes a plurality of suction pumps 12, suction pipes 13, suction pipe first valves 14, connection pipes 18, and connection valves 19 (here, two ).
- the liquefied gas storage facility 200 according to the present embodiment is different in configuration from the liquefied gas storage facility 100 according to the first embodiment in this respect, and the other points are basically the same as the liquefied gas storage facility 100 according to the first embodiment. has the same configuration.
- suction pipes 13 extend from the suction pump 12 toward the outside of the storage tank 10 , meet outside the storage tank 10 , and then extend toward the liquefied gas discharge pipe 11 .
- Each suction pipe first valve 14 is located at a portion closer to the storage tank 10 than the junction of the suction pipes 13 .
- the connection pipe 18 connects a portion of each suction pipe 13 closer to the suction port 21 than the first suction pipe valve 14 and a portion of the upper pipe 15 closer to the suction port 22 than the first valve 16 of the upper pipe.
- Each connecting pipe 18 is provided with a connecting valve 19 .
- the liquefied gas storage facility 200 includes a plurality of suction pumps 12 , suction pipes 13 , suction pipe first valves 14 , connection pipes 18 , and connection valves 19 .
- the liquefied gas storage facility 200 may include a plurality of suction pumps 12, suction pipes 13, and suction pipe first valves 14, and may also include one connection pipe 18 and one connection valve 19. .
- a check valve may be provided near the suction pump 12 of each suction pipe 13 in order to prevent reverse flow.
- FIG. 3 is a schematic diagram of a liquefied gas storage facility 300 according to the third embodiment.
- the components of the liquefied gas storage facility 300 according to the third embodiment those that are the same as or correspond to the components of the liquefied gas storage facility 100 according to the first embodiment are denoted by the same reference numerals in FIG. omitted.
- the liquefied gas storage facility 300 according to the present embodiment includes a boil-off gas carry-out pipe 30, and the upper pipe 15 is connected to the boil-off gas carry-out pipe 30.
- the liquefied gas storage facility 300 according to the present embodiment is different in configuration from the liquefied gas storage facility 100 according to the first embodiment in this respect, and the other points are basically the same as the liquefied gas storage facility 100 according to the first embodiment. has the same configuration.
- the boil-off gas carrying-out pipe 30 is located outside the storage tank 10 and is a pipe for carrying out the boil-off gas 102 generated in the storage tank 10 to the outside of the liquefied gas storage facility 100 .
- the boil-off gas discharge pipe 30 may discharge the boil-off gas 102 toward the engine.
- the upper pipe 15 is connected to the boil-off gas carry-out pipe 30 .
- black arrows in FIG. 3 indicate the flow of the liquefied gas 101 and the boil-off gas 102 during normal operation (when the emergency shutdown system is not operating).
- the upper pipe 15 is not originally a pipe for discharging the liquefied gas 101 in the storage tank 10, but the boil-off gas 102 generated in the storage tank 10 is discharged through the intake/discharge port 22. It is a pipe for sucking from and leading to the boil-off gas carrying-out pipe 30.
- the connecting valve 19 when the connecting valve 19 is opened while the suction pipe first valve 14 and the upper pipe first valve 16, which are the first valves, are closed, suction from the suction port 21 will occur.
- the liquefied gas 101 flows through the suction pipe 13 , the connecting pipe 18 , and the upper pipe 15 in this order, the liquefied gas 101 is discharged from the suction/discharge port 22 of the upper pipe 15 to the surface of the liquefied gas 101 or into the liquid.
- the upper pipe 15 may have a distribution portion 17 (see FIGS. 1 and 2).
- each embodiment has been described above, each embodiment can also be combined.
- the second embodiment and the third embodiment may be combined.
- one of the two suction pipes 13 in the second embodiment is connected to the upper pipe 15 of the second embodiment via a connecting pipe 18, and the other suction pipe 13 is connected
- You may connect with the upper piping 15 of 3rd Embodiment via the piping 18.
- FIG. Also in this case, the connecting pipe 18 may be located inside the storage tank 10 .
- the liquefied gas storage facility has a storage tank for storing liquefied gas and a suction port for sucking the liquefied gas inside the storage tank, a suction pipe extending toward the outside; an upper pipe having a suction/discharge port located at an upper portion in the storage tank; a suction pipe first valve that is the first valve, an upper pipe first valve that is the first valve provided in the upper pipe, and a portion of the suction pipe closer to the suction port than the suction pipe first valve and a connecting pipe connecting a portion of the upper pipe closer to the suction port than the upper pipe first valve, and a connecting valve provided in the connecting pipe, wherein the suction pipe first valve and the upper pipe When the first valve is closed and the connection valve is opened, the liquefied gas sucked from the suction port flows through the suction pipe, the connection pipe, and the upper pipe in this order, and then the surface of the liquefied gas or released into the liquid.
- the liquefied gas can be released to the surface of the liquefied gas or into the liquid by opening the connecting valve even when the first valve is closed.
- the connecting valve even when the first valve is closed.
- the upper pipe includes a distribution part located in the upper part of the storage tank and having a plurality of the suction and discharge ports, and the first valve of the suction pipe and the first valve of the upper pipe is closed and the connection valve is opened, the liquefied gas sucked from the suction port flows through the suction pipe, the connection pipe, and the upper pipe in this order, and then liquefies from the suction/discharge port of the distribution unit. Liquefied gas is released on the surface of the gas or into the liquid.
- the liquefied gas can be discharged from a plurality of locations, so it is possible to efficiently suppress the generation of a high-temperature layer on the surface of the liquefied gas.
- the liquefied gas storage facility includes an inert gas supply pipe for supplying inert gas to the storage tank.
- the explosion can be prevented by supplying the inert gas from the inert gas supply pipe to the inside of the storage tank.
- connection valve may be opened when the suction pipe first valve and the upper pipe first valve are closed.
- the liquefied gas is reliably placed on the surface of the liquefied gas or in the liquid. can be released into the storage tank and suppress the increase in the internal pressure of the storage tank.
- the liquefied gas storage equipment further includes a liquefied gas carry-out pipe positioned outside the storage tank and carrying out the liquefied gas, and the suction pipe and the upper pipe are connected to the liquefied gas It is connected to the carry-out piping.
- the upper pipe when the first valve is open, the upper pipe can guide the liquefied gas in the liquefied gas carry-out pipe to the storage tank and discharge the liquefied gas to the surface or into the liquid. Therefore, during normal operation, the suction line can be used to carry out the liquefied gas while discharging the liquefied gas to the surface of the liquefied gas.
- the liquefied gas storage facility includes a liquefied gas carry-out pipe located outside the storage tank for carrying out the liquefied gas, and a boil-off gas carry-out pipe located outside the storage tank for carrying out the boil-off gas. and, wherein the suction pipe is connected to the liquefied gas discharge pipe, and the upper pipe is connected to the boil-off gas discharge pipe.
- the piping for carrying out the boil-off gas is used as the upper piping for releasing the liquefied gas in the storage tank. Therefore, there is no need to provide a dedicated pipe for releasing the liquefied gas, and the liquefied gas storage facility can be simplified.
- the ship according to the embodiment is equipped with the liquefied gas storage facility described above.
- the above ship may further include an engine that generates power for propelling the ship, and the liquefied gas carrying-out pipe may carry out the liquefied gas toward the engine.
- the ship can be propelled by an engine that uses liquefied gas or gas obtained by vaporizing liquefied gas as fuel.
- the above ship may further include an engine that generates power for propelling the ship, and the boil-off gas carrying-out pipe may carry out the liquefied gas toward the engine.
- the ship can be propelled by an engine that uses boil-off gas as fuel.
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Abstract
Description
以下、本開示の実施形態について説明する。はじめに、第1実施形態に係る液化ガス貯蔵設備100について説明する。液化ガス貯蔵設備100は、液化ガス101を貯蔵する設備である。本実施形態では、液化ガス貯蔵設備100は、船舶に搭載されている。ただし、液化ガス貯蔵設備100は、陸上に設置されていてもよい。
次に、第2実施形態に係る液化ガス貯蔵設備200について説明する。図2は、第2実施形態に係る液化ガス貯蔵設備200の概略図である。第2実施形態に係る液化ガス貯蔵設備200の構成要素のうち、第1実施形態に係る液化ガス貯蔵設備100の構成要素と同じ又は対応するものには図2において同一の符号を付し、説明を省略する。
次に、第3実施形態に係る液化ガス貯蔵設備300について説明する。図3は、第3実施形態に係る液化ガス貯蔵設備300の概略図である。第3実施形態に係る液化ガス貯蔵設備300の構成要素のうち、第1実施形態に係る液化ガス貯蔵設備100の構成要素と同じ又は対応するものには図3において同一の符号を付し、説明を省略する。
上記のとおり、実施形態に係る液化ガス貯蔵設備は、液化ガスを貯蔵する貯蔵タンクと、前記貯蔵タンクの内部で液化ガスを吸引する吸引口を有し、前記貯蔵タンクの内部から前記貯蔵タンクの外部に向かって延びる吸引配管と、前記貯蔵タンク内の上部に位置する吸排口を有し、前記貯蔵タンク内の上部から前記貯蔵タンクの外部に向かって延びる上部配管と、前記吸引配管に設けられた第1弁である吸引配管第1弁と、前記上部配管に設けられた第1弁である上部配管第1弁と、前記吸引配管の前記吸引配管第1弁よりも前記吸引口側の部分と前記上部配管の前記上部配管第1弁よりも前記吸排口側の部分とをつなぐ連結配管と、前記連結配管に設けられた連結弁と、を備え、前記吸引配管第1弁及び前記上部配管第1弁を閉じるとともに前記連結弁を開いたとき、前記吸引口から吸引した液化ガスが、前記吸引配管、前記連結配管、及び、前記上部配管をこの順で流れた後に、液化ガスの表面又は液中に放出される。
11 液化ガス搬出配管
13 吸引配管
14 吸引配管第1弁
15 上部配管
16 上部配管第1弁
17 分配部
18 連結配管
19 連結弁
20 不活性ガス供給配管
21 吸引口
22 吸排口
30 ボイルオフガス搬出配管
100 液化ガス貯蔵設備
101 液化ガス
102 ボイルオフガス
200 液化ガス貯蔵設備
300 液化ガス貯蔵設備
Claims (9)
- 液化ガスを貯蔵する貯蔵タンクと、
前記貯蔵タンクの内部で液化ガスを吸引する吸引口を有し、前記貯蔵タンクの内部から前記貯蔵タンクの外部に向かって延びる吸引配管と、
前記貯蔵タンク内の上部に位置する吸排口を有し、前記貯蔵タンク内の上部から前記貯蔵タンクの外部に向かって延びる上部配管と、
前記吸引配管に設けられた第1弁である吸引配管第1弁と、
前記上部配管に設けられた第1弁である上部配管第1弁と、
前記吸引配管の前記吸引配管第1弁よりも前記吸引口側の部分と前記上部配管の前記上部配管第1弁よりも前記吸排口側の部分とをつなぐ連結配管と、
前記連結配管に設けられた連結弁と、を備え、
前記吸引配管第1弁及び前記上部配管第1弁を閉じるとともに前記連結弁を開いたとき、前記吸引口から吸引した液化ガスが、前記吸引配管、前記連結配管、及び、前記上部配管をこの順で流れた後に、液化ガスの表面又は液中に放出される、液化ガス貯蔵設備。 - 前記上部配管は、前記貯蔵タンク内の上部に位置し前記吸排口を複数有する分配部を含み、
前記吸引配管第1弁及び前記上部配管第1弁を閉じるとともに前記連結弁を開いたとき、前記吸引口から吸引した液化ガスが、前記吸引配管、前記連結配管、及び、前記上部配管をこの順で流れた後に、前記分配部の吸排口から液化ガスの表面又は液中に液化ガスが放出される、請求項1に記載の液化ガス貯蔵設備。 - 前記貯蔵タンクに不活性ガスを供給する不活性ガス供給配管を備えている、請求項1又は2に記載の液化ガス貯蔵設備。
- 前記吸引配管第1弁及び前記上部配管第1弁が閉じたとき、前記連結弁が開かれるように構成されている、請求項1乃至3のうちいずれか一の項に記載の液化ガス貯蔵設備。
- 前記貯蔵タンクの外部に位置し液化ガスを搬出する液化ガス搬出配管をさらに備え、
前記吸引配管及び前記上部配管は、前記液化ガス搬出配管に接続されている、請求項1乃至4のうちいずれか一の項に記載の液化ガス貯蔵設備。 - 前記貯蔵タンクの外部に位置し液化ガスを搬出する液化ガス搬出配管と、
前記貯蔵タンクの外部に位置しボイルオフガスを搬出するボイルオフガス搬出配管と、をさらに備え、
前記吸引配管は前記液化ガス搬出配管に接続されており、
前記上部配管は前記ボイルオフガス搬出配管に接続されている、請求項1乃至4のうちいずれか一の項に記載の液化ガス貯蔵設備。 - 請求項1乃至6のうちいずれか一の項に記載の液化ガス貯蔵設備を備えた船舶。
- 請求項5又は6に記載の液化ガス貯蔵設備を備えた船舶であって、
当該船舶を推進させるための動力を発生するエンジンをさらに備え、
前記液化ガス搬出配管は、前記エンジンに向かって液化ガスを搬出する、船舶。 - 請求項6に記載の液化ガス貯蔵設備を備えた船舶であって、
当該船舶を推進させるための動力を発生するエンジンをさらに備え、
前記ボイルオフガス搬出配管は、前記エンジンに向かって液化ガスを搬出する、船舶。
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JP2007292181A (ja) * | 2006-04-25 | 2007-11-08 | Chiyoda Corp | 液化ガス設備のbog抑制方法 |
JP2013032839A (ja) * | 2011-07-05 | 2013-02-14 | Nippon Sharyo Seizo Kaisha Ltd | 移動式容器 |
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JPS59219599A (ja) * | 1983-05-27 | 1984-12-10 | Chiyoda Chem Eng & Constr Co Ltd | 低温液化ガス貯槽における気化ガスの発生抑制方法 |
JP2003247697A (ja) | 2002-02-25 | 2003-09-05 | Kawasaki Shipbuilding Corp | 低温液化ガス攪拌装置とそれを装備した船舶 |
FR3066250B1 (fr) | 2017-05-12 | 2019-07-05 | Gaztransport Et Technigaz | Dispositif et procede de refroidissement de gaz liquefie et/ou de gaz d'evaporation naturelle de gaz liquefie |
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JP2007292181A (ja) * | 2006-04-25 | 2007-11-08 | Chiyoda Corp | 液化ガス設備のbog抑制方法 |
JP2013032839A (ja) * | 2011-07-05 | 2013-02-14 | Nippon Sharyo Seizo Kaisha Ltd | 移動式容器 |
KR20180082107A (ko) * | 2017-01-10 | 2018-07-18 | 현대중공업 주식회사 | 가스 처리 시스템 및 선박 |
JP2019015378A (ja) * | 2017-07-10 | 2019-01-31 | 三井E&S造船株式会社 | 液化ガス貯蔵タンク構造、船舶、及びボイルオフガスの低減方法 |
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