WO2011105712A2 - 부유식 lng 충전소 - Google Patents
부유식 lng 충전소 Download PDFInfo
- Publication number
- WO2011105712A2 WO2011105712A2 PCT/KR2011/000985 KR2011000985W WO2011105712A2 WO 2011105712 A2 WO2011105712 A2 WO 2011105712A2 KR 2011000985 W KR2011000985 W KR 2011000985W WO 2011105712 A2 WO2011105712 A2 WO 2011105712A2
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- WO
- WIPO (PCT)
- Prior art keywords
- lng
- gas
- floating
- boil
- line
- 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
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/30—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures
- B63B27/34—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures using pipe-lines
-
- 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
-
- 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
- B63B27/30—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
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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
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4486—Floating storage vessels, other than vessels for hydrocarbon production and storage, e.g. for liquid cargo
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J99/00—Subject matter not provided for in other groups of this subclass
- B63J2099/001—Burning of transported goods, e.g. fuel, boil-off or refuse
- B63J2099/003—Burning of transported goods, e.g. fuel, boil-off or refuse of cargo oil or fuel, or of boil-off gases, e.g. for propulsive purposes
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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
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, 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
- 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
- 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
- F17C2227/0157—Compressors
-
- 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
- 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
- F17C2265/03—Treating the boil-off
- F17C2265/032—Treating the boil-off by recovery
- F17C2265/037—Treating the boil-off by recovery with pressurising
-
- 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
- F17C2265/065—Fluid distribution for refuelling vehicle fuel tanks
-
- 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
- F17C2265/07—Generating electrical power as side effect
-
- 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
-
- 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
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- 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
- the present invention relates to a floating LNG filling station that can fill LNG for use as fuel in ships or offshore structures at sea.
- natural gas is transported in gas state through onshore or offshore gas piping, or stored in LNG carriers in the form of liquefied natural gas (LNG). Is carried.
- the LNG is obtained by cooling the natural gas to a cryogenic state of about -163 degrees Celsius, and its volume is reduced to approximately 1/600 than that of the natural gas in the gas state, so it is very suitable for long distance transportation by sea.
- Such LNG carriers have LNG storage tanks that can withstand cryogenic temperatures in order to unload LNG to land demand by loading the LNG into the sea.
- FIG. 1 is a cross-sectional view showing a LNG carrier according to the prior art.
- the conventional LNG transport ship 1 is provided with an LNG storage tank 2, the LNG storage tank 2 is made of a structure and a material to withstand cryogenic temperatures, supply of LNG And piping and pump not shown is installed for the discharge.
- Such a conventional LNG carrier 1 stores LNG in the LNG storage tank 2 and transports the LNG to a desired land demand destination.
- the present invention provides a floating LAN filling station to fill LNG for use as fuel in ships or offshore structures at sea.
- the present invention supplies the power required for various utilities by supplying the LNG to the charging target, processing the boil-off gas when received from the LNG supply ship, using the treated boil-off gas as fuel or by using it as a power production and power production To provide a floating LNG charging station.
- a floating LNG filling station for floating in the sea to fill the vessel or offshore structure with LNG, a floating structure, an LNG tank provided so that the LNG is stored in the floating structure, and LNG from the LNG tank
- a floating LNG filling station may be provided that includes an LNG line for discharging the vessel or an offshore structure, and an LNG pump installed to provide a pumping force for discharging the LNG to the LNG line.
- the present embodiment may further include a multi-stage compressor installed in the LNG line so that the LNG can be supplied by compressing the LNG at any one of low pressure, medium pressure, and high pressure to correspond to the compression filling conditions of the vessel or the offshore structure. have.
- the present embodiment may further include an unloading unit for supplying the LNG discharged from the LNG line to the vessel or the offshore structure and returning the boil-off gas generated from the tank of the vessel or the offshore structure.
- the present embodiment may further include a device that can use the boil-off gas generated during the supply of the LNG as a fuel for temporary storage or power generation.
- the floating structure may have one or more of a satellite positioning (DP) device or a self-mooring device.
- DP satellite positioning
- the floating structure may have a water treatment device for preventing the shaking according to the LNG loading amount or the sea condition.
- the unloading unit may allow LNG to be filled in the LNG tank through the LNG line as well as unloading the LNG.
- the LNG line may be provided with a first bypass line for bypassing the compressor.
- a second bypass line may be installed in the LNG line to supply LNG to the LNG tank by bypassing the LNG pump.
- the unloading unit may further include a boil-off gas line for unloading the boil-off gas.
- the unloading unit may further include a boil-off gas treatment device located in a floating structure using LNG as fuel, and a supply line branched from the boil-off gas line to supply boil-off gas to the boil-off gas treatment device.
- the unloading unit may have a metering unit capable of detecting the amount of unloading or unloading of LNG.
- the equipment is a separate boil-off gas treatment line receiving an over-produced boil-off gas from the LNG tank, a gas compressor coupled to the boil-off gas treatment line to pressurize the boil-off gas, and connected to the rear end of the gas compressor It may include a storage container for temporarily storing the evaporated gas, and a control valve coupled to an extension line connected to the power production device from the rear end of the storage container to adjust the evaporation gas supply flow rate.
- the equipment may further include a generator for producing electric power from the power generated from the power generating device, and a voltage control device coupled between the output terminal and the utility of the generator.
- Embodiment of the present invention is to enable the operation of ships or offshore structures using LNG as fuel to enable the LNG or LNG to be used as fuel in the ships or offshore structures at sea, LNG or the ships or offshore structures as fuel There is no need to move to the port to recharge the space, thereby minimizing the time constraints and the space constraints of the berth.
- the embodiment of the present invention has the advantage that it is possible to supply the power required for various utilities by treating the excess generated evaporation gas to use as fuel and use it as power production and power production.
- the embodiment of the present invention has the advantage that it can be used again as a fuel by temporarily storing the compressed gas by pressing the excess evaporation gas.
- FIG. 1 is a cross-sectional view showing a LNG transport ship according to the prior art
- FIG. 2 is a block diagram showing a floating LNG filling station according to a first embodiment of the present invention, where the floating LNG filling station shows a method of charging LNG to the charging target,
- FIG. 3 is a configuration diagram showing a modified embodiment of the floating LNG filling station shown in FIG. 2, where the floating LNG filling station shows a way of receiving LNG from the LNG supply ship,
- FIG. 4 is a block diagram showing a floating LNG charging station according to a second embodiment of the present invention.
- Figure 5 is a block diagram showing a process for processing the boil-off gas generated when supplying LNG from the floating LNG filling station to the charging target
- Figure 6 is a block diagram showing a process for processing the boil-off gas generated when supplying LNG from the LNG supply ship to the floating LNG filling station.
- FIG. 2 is a block diagram showing a floating LNG filling station according to a first embodiment of the present invention
- Figure 3 is a block diagram showing a modified embodiment of the floating LNG filling station shown in FIG.
- Figure 2 shows the way the floating LNG charging station of the present invention to charge the LNG to the charging object
- Figure 3 shows the way the floating LNG charging station of the present invention is supplied with LNG from the LNG supply ship.
- the floating LNG filling station 100 includes a filling target 10 such as a ship or an offshore structure that uses LNG as fuel for propulsion or power generation in a floating state at sea. Is used to charge LNG.
- the floating LNG charging station 100 includes a floating structure 110, an LNG tank 120 provided in the floating structure 110, an LNG line 130 for discharging LNG from the LNG tank 120, LNG pump 140 and compressor 150 respectively installed in LNG line 130, and unloading unit 160 for supplying LNG discharged from LNG line 130 to filling target 10 such as a ship or offshore structure, etc. It includes.
- the floating LNG filling station 100 may further include a facility that can process the boil-off gas generated when unloading the LNG as described with reference to FIGS. 5 and 6.
- Floating structure 110 may be equipped with a self-propelled system of adequate capacity to prepare for the sea disasters caused by the storm.
- the floating structure 110 may have the form of a barge moving with the help of a tugboat, or the floating object 110 may be docked to the floating structure 110 by using a tugboat or floated on other seas. It can have various structures.
- the floating structure 110 may have a self-mooring device 111 to be fixed at a location where the ship is frequently visited or other required locations in the ocean.
- the floating structure 110 also has a mooring function to precisely adjust the position by the DP (Dynamic Positioning) (400, 410) capable of automatic positioning through the propeller and satellite equipment or satellite navigation. Can be. That is, the floating structure 110 may have one or more of the automatic positioning device (400, 410) or the magnetic mooring 111 by the satellite navigation.
- the floating structure 110 may have a water treatment device 112 consisting of a plurality of ballast tanks and pumping devices, etc. in order to prevent the shaking due to the LNG loading amount or the sea condition, the ballast tank is an LNG tank 120 ) May be integrated or standalone.
- the LNG tank 120 is provided so that LNG is stored inside the floating structure 110, and may be configured in the form of a cargo hold of an independent type of membrane type or type B or type C defined by an International Maritime Organization (IMO).
- the LNG tank 120 may be configured as a 1-row or 2-row structure, and in addition to the LNG pump 140, a pump, a strip pump, and an inner and outer sides required for both areas of LNG.
- a safety valve for pressure control, a temperature and pressure detector, a gas detector, and the like may be provided.
- the LNG line 130 may be installed to discharge LNG from the LNG tank 120 or provide a path for supplying LNG from the LNG supply line 20, and may have a material or structure that can withstand the cryogenic temperature of LNG. Can be.
- the LNG pump 140 is installed to provide a pumping force for discharging LNG in the LNG line 130, and a cryogenic pump for pumping cryogenic LNG may be used.
- the compressor 150 may be installed in the LNG line 130 and compress the LNG supplied to the tank 11 of the filling target 10 that requires the filling of LNG to a required pressure.
- the unloading unit 160 may supply the LNG discharged from the LNG line 130 to the tank 11 of the filling target 10 through the filling line 161.
- the filling line 161 may be switched so that LNG is filled in the LNG tank 120 through the LNG line 130 to receive the LNG from the LNG supply line 20 as well as unloading the LNG. For this reason, unloading may be possible.
- the filling line 161 may be configured to include a flexible hose.
- the unloading unit 160 includes a loading arm for moving the filling line 161 to the tank 11 of the filling target 10 that needs to be filled with LNG, and a central control room (eg, a centralized administration control center).
- a central control room eg, a centralized administration control center.
- Reliable flow control including integrated automation systems (e.g., IAS, Integrated Automation System) to operate enterprise operations on loading, unloading and supplying LNG or boil of gas (BOG) Temperature control and pressure control can be performed.
- a first bypass line 131 for bypassing the compressor 150 may be installed, and the LNG pump ( The second bypass line 132 may be installed to bypass the 140 to supply LNG to the LNG tank 120.
- the LNG supplied to the LNG tank 120 by installing one or more valves or the like in one or both of the LNG line 130 and the first and second bypass lines 131 and 132 is the compressor 150 and the LNG.
- the pump 140 may be bypassed.
- the unloading unit 160 may load and unload the boil-off gas to the filling target 10 or the LNG supply line 20 located in parallel with the floating structure 110, and the filling target 10 located in series.
- the LNG supply line 20 may be configured to load and unload boil-off gas.
- the unloading unit 160 loads and unloads the boil-off gas, for example, unloads the boil-off gas generated from the LNG tank 120 to the LNG supply line 20, or evaporates generated from the tank 11 of the charging target 10. It may further include a boil-off gas line 162 for receiving the gas returned to the LNG tank 120, the boil-off gas line 162 is filled in the discharge object (10) when sent from the LNG tank 120 to the filling target (10) By returning the boil-off gas generated from the tank (11) of the tank 11 to the LNG tank 120 may serve to compensate for the pressure rise in the tank (11) of the filling object 10 due to the generation of the boil-off gas.
- the boil-off gas line 162 may serve to compensate for mutual pressure between the LNG tank 120 side and the tank 11 of the filling target 10. That is, the tank 11 of the filling object 10 to be supplied with LNG from the LNG tank 120 is initially filled with a substantial portion of the initial boil-off gas, and LNG from the LNG tank 120 is filled with the tank of the filling object 10 ( When unloading 11, it is necessary to properly return this boil-off gas to the LNG tank 120.
- the pressure in the tank 11 of the filling object 10 having a constant volume is rapidly increased to not only stabilize the stability of the tank 11.
- the pressure due to the boil-off gas may be compensated by the boil-off gas being unloaded or returned through the boil-off gas line 162.
- the boil-off gas line 162 may also serve to compensate the mutual volume between the LNG tank 120 side and the tank 11 of the filling object 10. That is, by returning the same volume of boil-off gas from the LNG tank 120 to the tank 11 of the filling object 10 from the tank 11 of the filling object 10 to the LNG tank 120, Compensation for the volume between the LNG tank 120 and the tank 11 of the filling object 10, that is, may serve to exchange the volume with each other.
- the boil-off gas line 162 may be configured to include a flexible hose.
- the evaporated gas to be moved may be used as a separate fuel, for this purpose, the unloading unit 160 to supply the boil-off gas to the boil-off gas treatment apparatus 113 using the boil-off gas as a fuel evaporation gas line 162
- the boil-off gas moving along the boil-off gas line 162 may be supplied to the boil-off gas treatment device 113 through the supply line 163.
- a switching valve 164 for bypassing the boil-off gas treatment device 113 may be installed in any one or both of the boil-off gas line 162 and the supply line 163.
- the switching valve 164 may be composed of a plurality of bidirectional valves as well as a three-way valve as in this embodiment.
- the boil-off gas treatment apparatus 113 may be, for example, any one or more of a boiler, an incinerator, a power plant or a generator for electricity production, and a fuel engine. A specific use example of the boil-off gas treatment apparatus 113 will be described with reference to FIGS. 5 and 6.
- the unloading unit 160 may further include a metering unit 165 capable of detecting the amount of unloading or unloading of LNG. Therefore, the amount of LNG unloaded from the LNG tank 120 or the amount of LNG filled in the LNG tank 120 can be easily known from the outside.
- FIG. 4 is a block diagram showing a floating LNG charging station according to a second embodiment of the present invention.
- the floating LNG charging station 200 includes a floating structure 210, an LNG tank 220 provided to store LNG in the floating structure 210, and LNG line 230 for discharging LNG from LNG tank 220, LNG pump 240 installed to provide a pumping force for discharging LNG to LNG line 230, and LNG in 230 Compressors 251 and 252 are installed to compress the, and the cargo unit 260 to supply the LNG discharged from the LNG line 230 to the vessel or offshore structure. Since these configurations are substantially the same as the corresponding configurations of the floating LNG filling station 100 according to the first embodiment, description thereof will be omitted.
- the compressors 251 and 252 are composed of a plurality of compressors or compressors having different compression pressures of LNG, and thus may be selectively used according to the delivery pressure of the LNG.
- a high pressure compressor 251 for compressing high pressure and a low and medium compressor 252 for compressing the medium or low pressure may be included.
- the high pressure compressor 251 and the low and medium pressure compressor 252 use LNG as a fuel to supply LNG to a filling target 10 such as a ship for propulsion and power generation or a marine structure having equipment driven by using LNG as fuel.
- the compression pressure of the LNG may be determined within an appropriate range according to the pressure condition required for the filling, that is, the compression filling condition.
- the compressors 251 and 252 may not be used when only the delivery pressure of the LNG pump 240 can be supplied.
- it may be composed of three or more, or a plurality of compressors may be arranged in parallel if necessary.
- compressors 251 and 252 may be manufactured in a multi-stage structure in which the modular compressors are arranged in series and may be used in the present embodiment.
- Each of the compressors 251 and 252 may be installed in the LNG line 230 so that LNG may be compressed and supplied in response to a compression charging condition of a charging object, sometimes at low pressure, sometimes at medium pressure or high pressure.
- FIG. 5 is a block diagram showing a process for processing the boil-off gas generated when supplying LNG from the floating LNG filling station to the charging target
- Figure 6 is a process for treating the boil-off gas generated when receiving LNG from the LNG supply line to the LNG filling station It is a block diagram showing the process for doing this.
- the utility 300 may correspond to a compression apparatus, a pump, a lamp, an air conditioning facility, a controller, or various power consumption devices that may be used in a floating LNG charging station, and the like.
- the boil-off gas generated excessively from the LNG tank 120 may be separated. Via the gas compressor (90) that can be compressed to the required pressure through the boil-off gas treatment line (22a).
- the boil-off gas treatment line 22a treats the boil-off gas and uses it as fuel and uses it as power generation and power generation, so as to supply power for utilities that require power, and boil-off gas from the LNG tank 120.
- Received may be configured to supply the boil-off gas to the gas compressor 90 or the power production device (80a).
- the power generator 80a may be a diesel engine, a double fuel diesel engine, a gas turbine device, a steam boiler, a steam turbine device, or the like.
- a rear end of the gas compressor 90 may include a storage container ( 91 may be connected to temporarily store the compressed boil-off gas, and may also serve as a buffer for boil-off gas supply.
- the storage container 91 may have various forms such as a pressure container, a buffer tank.
- a control valve 92 may be coupled to an extension line connected from the rear end of the storage container 91 to the power production device 80a so as to adjust the evaporation gas supply flow rate of the storage container 91.
- the boil-off gas via the gas compressor 90 may be temporarily stored in a separate storage container 91 and then sent to the power production device 80a for combustion, or the gas compressor 90 or the storage container 91 may be burned. Without passing through the LNG tank 120 can be sent directly to the power production unit (80a) to be burned.
- the generator 80b for generating electric power from the power generated by the power generator 80a may be coupled to the output terminal of the power generator 80a.
- the output terminal of the generator 80b may be electrically coupled to a voltage control device 80c (eg, a switch board) for converting and supplying generated power to utility use power.
- power may be produced using the generator 80b by the power generated from the power generator 80a, and the generated power may be used for each utility that requires power through the voltage controller 80c. 300 may be supplied.
- the evaporated gas naturally generated in the LNG cargo hold 120 simply by evaporation from the outside is similarly evaporated.
- the gas treatment line 22a and associated coupling arrangements can be supplied for fuel. 6 when the LNG tank 120 receives LNG from the LNG supply line 20, similarly, the boil-off gas in the LNG tank 120 passes through the boil-off gas line 162 and the unloading unit 160. This can be returned to the LNG supply line 20, which is the same as the case of transferring the LNG from the LNG tank 120 to the tank 11 of the filling target 10 so that a detailed description thereof will be omitted.
- the floating objects 110 and 210 are fixed to the floating structures 110 and 210 in a state where the floating structures 110 and 210 are fixed to float at sea by the magnetic mooring device 111. 10)
- the filling lines 161 and 261 are connected to the tank 11 provided in the ship or offshore structure which require the filling of LNG by the unloading units 160 and 260.
- the LNG in the LNG tank 110 is transferred to the tank 11 of the charging target 10 through the LNG lines 130 and 230 and the filling lines 161 and 261 by pumping the LNG pumps 140 and 240. Supply.
- the compressor 150 shown in FIG. 2 may be compressed by filling the LNG to an appropriate pressure, or may be filled in multiple or multiple stages shown in FIGS. 4 and 5 according to the degree of compression or compression filling conditions.
- the charging may be made by the compressors 251 and 252.
- the LNG supplied to the LNG tank 120 of the floating structure 110 may be the compressor 150 and the LNG pump 140 through the first and second bypass lines 131 and 132. Can be bypassed.
- the unloading unit 160 unloads the LNG as described above, the LNG tank of the floating structure 110 to the boil-off gas generated from the tank 11 of the filling object 10 by the boil-off gas line 162. Returning to 120 or the boil-off gas generated from the LNG tank 120 of the floating structure 110 may be returned to the LNG tank 21 of the LNG supply line 20.
- the boil-off gas line 162 may serve to compensate for mutual pressure between the LNG tank 120 side and the tank 11 of the filling target 10, and the boil-off gas line 162 may be the LNG tank 120. It may also serve to compensate the mutual volume between the side and the tank 11 of the filling object (10).
- the tank 11 of the filling object 10 to be supplied with LNG from the LNG tank 120 is initially filled with a substantial amount of initial boil-off gas, LNG from the LNG tank 120 is filled with the tank ( When unloading 11), the same amount of LNG as unloading the boil-off gas is properly returned to the LNG tank 120 to allow mutual pressure and volume compensation.
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- Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
Description
Claims (14)
- 해상에 부유하여 LNG를 필요로 하는 충전 대상에 LNG를 충전시키는 충전소로서,부유식 구조물과,상기 부유식 구조물에 LNG가 저장되도록 마련되는 LNG 탱크와,상기 LNG 탱크로부터 LNG를 상기 충전대상으로 배출시키기 위한 LNG 라인과,상기 LNG 라인에 LNG의 배출을 위한 펌핑력을 제공하도록 설치되는 LNG 펌프를 포함하는 부유식 LNG 충전소.
- 제1항에 있어서,LNG를 저압, 중압, 고압 중 어느 하나의 압력으로 상기 충전대상의 압축 충전 조건에 대응하게 압축시켜 공급할 수 있도록, 상기 LNG 라인에 설치되는 다단의 압축기를 더 포함하는 부유식 LNG 충전소.
- 제1항에 있어서,상기 LNG 라인으로부터 배출되는 LNG를 상기 충전대상에 공급되도록 이송하고 상기 LNG의 이송 중에 발생되는 증발가스를 리턴처리 할 수 있는 하역유닛을 더 포함하는 부유식 LNG 충전소.
- 제1항에 있어서,상기 LNG의 이송 중에 생성되는 증발가스를 일시 저장 또는 전력생산을 위한 연료로 사용할 수 있는 장비를 더 포함하는 부유식 LNG 충전소.
- 제 1 항에 있어서,상기 부유식 구조물은,위성항법에 의한 자동 위치조정(DP) 장치 또는 자기 계류(self-mooring) 장치 중 하나 이상을 가지고 있는 부유식 LNG 충전소.
- 제 1 항 또는 제 5 항에 있어서,상기 부유식 구조물은,LNG 적하량이나 해상 상태에 따라 동요를 방지하기 위한 수처리 장치를 가지는 부유식 LNG 충전소.
- 제 3 항에 있어서,상기 하역유닛은,추가로 상기 LNG 라인을 통해서 상기 LNG 탱크에 LNG가 채워지도록 이송하는 부유식 LNG 충전소.
- 제 7 항에 있어서,상기 LNG 라인은 상기 압축기를 바이패스하기 위한 제 1 바이패스라인이 설치되는 부유식 LNG 충전소.
- 제 7 항 또는 제 8 항에 있어서,상기 LNG 라인은 상기 LNG 펌프를 바이패스하여 상기 LNG 탱크에 LNG를 공급하도록 제 2 바이패스라인이 설치되는 부유식 LNG 충전소.
- 제 3 항 또는 제 7 항에 있어서,상기 하역유닛은 증발가스를 양하역시키기 위한 증발가스라인을 더 포함하는 부유식 LNG 충전소.
- 제 10 항에 있어서,상기 하역유닛은 상기 부유식 구조물에 위치하여 LNG를 연료로 사용하는 증발가스처리장치와, 상기 증발가스처리장치로 증발가스를 공급하기 위해 상기 증발가스라인으로부터 분기되는 공급라인을 더 포함하는 부유식 LNG 충전소.
- 제 3 항 또는 제 7 항에 있어서,상기 하역유닛은 LNG의 하역 또는 양하역 양을 검지할 수 있는 메터링 유닛을 가지는 부유식 LNG 충전소.
- 제 4 항에 있어서,상기 장비는 상기 LNG 탱크로부터 과잉 생산되는 증발가스를 공급받는 별도의 증발가스처리라인과,상기 증발가스처리라인에 결합되어 상기 증발가스를 가압하는 가스압축기와,상기 가스압축기의 후단에 연결되어 압축된 증발가스를 일시적으로 저장할 수 있는 저장용기와,상기 저장용기의 후단으로부터 동력생산장치까지 연결된 연장라인에 결합되어 증발가스 공급유량을 조절하는 제어밸브를 포함하는 부유식 LNG 충전소.
- 제 13 항에 있어서,상기 장비는 상기 동력생산장치로부터 발생된 동력으로 전력을 생산하는 발전기와,상기 발전기의 출력단과 유틸리티 사이에 결합된 전압제어장치를 더 포함하는 부유식 LNG 충전소.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201180011102.8A CN102781772B (zh) | 2010-02-24 | 2011-02-15 | 浮动型液化天然气站 |
| EP11747602.8A EP2540611B1 (en) | 2010-02-24 | 2011-02-15 | Floating type lng station |
| JP2012554896A JP5583229B2 (ja) | 2010-02-24 | 2011-02-15 | 浮遊式lng充填ステーション |
| SG2012062873A SG183483A1 (en) | 2010-02-24 | 2011-02-15 | Floating type lng station |
| US13/580,897 US9764802B2 (en) | 2010-02-24 | 2011-02-15 | Floating type LNG station |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2010-0016805 | 2010-02-24 | ||
| KR20100016805 | 2010-02-24 | ||
| KR10-2010-0122104 | 2010-12-02 | ||
| KR1020100122104A KR101239352B1 (ko) | 2010-02-24 | 2010-12-02 | 부유식 lng 충전소 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2011105712A2 true WO2011105712A2 (ko) | 2011-09-01 |
| WO2011105712A3 WO2011105712A3 (ko) | 2012-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2011/000985 Ceased WO2011105712A2 (ko) | 2010-02-24 | 2011-02-15 | 부유식 lng 충전소 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9764802B2 (ko) |
| EP (1) | EP2540611B1 (ko) |
| JP (1) | JP5583229B2 (ko) |
| KR (1) | KR101239352B1 (ko) |
| CN (1) | CN102781772B (ko) |
| SG (1) | SG183483A1 (ko) |
| WO (1) | WO2011105712A2 (ko) |
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2011
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- 2011-02-15 CN CN201180011102.8A patent/CN102781772B/zh active Active
- 2011-02-15 US US13/580,897 patent/US9764802B2/en active Active
- 2011-02-15 JP JP2012554896A patent/JP5583229B2/ja active Active
- 2011-02-15 WO PCT/KR2011/000985 patent/WO2011105712A2/ko not_active Ceased
- 2011-02-15 EP EP11747602.8A patent/EP2540611B1/en active Active
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9927067B2 (en) * | 2011-12-20 | 2018-03-27 | Bennamann Services Ltd | Liquid methane storage system and method |
| US11268654B2 (en) | 2011-12-20 | 2022-03-08 | Bennamann Services Ltd | Liquid methane storage system and method |
| US20220154886A1 (en) * | 2011-12-20 | 2022-05-19 | Bennamann Services Ltd | Liquid methane storage system and method |
| US12228253B2 (en) * | 2011-12-20 | 2025-02-18 | Bennamann Services Ltd | Liquid methane storage system and method |
| US20150176765A1 (en) * | 2012-09-21 | 2015-06-25 | Woodside Energy Technologies Pty Ltd. | Integrated storage/offloading facility for an lng production plant |
| US10197220B2 (en) * | 2012-09-21 | 2019-02-05 | Woodside Energy Technologies Pty Ltd | Integrated storage/offloading facility for an LNG production plant |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101239352B1 (ko) | 2013-03-06 |
| WO2011105712A3 (ko) | 2012-01-05 |
| CN102781772A (zh) | 2012-11-14 |
| EP2540611A2 (en) | 2013-01-02 |
| EP2540611A4 (en) | 2014-08-27 |
| JP5583229B2 (ja) | 2014-09-03 |
| EP2540611B1 (en) | 2015-09-30 |
| CN102781772B (zh) | 2015-04-01 |
| SG183483A1 (en) | 2012-09-27 |
| JP2013520365A (ja) | 2013-06-06 |
| US9764802B2 (en) | 2017-09-19 |
| KR20110097604A (ko) | 2011-08-31 |
| US20120317996A1 (en) | 2012-12-20 |
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