WO2020166227A1 - Floating low-temperature liquefied gas filling equipment and low-temperature liquefied gas delivery method using same - Google Patents

Floating low-temperature liquefied gas filling equipment and low-temperature liquefied gas delivery method using same Download PDF

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Publication number
WO2020166227A1
WO2020166227A1 PCT/JP2019/051631 JP2019051631W WO2020166227A1 WO 2020166227 A1 WO2020166227 A1 WO 2020166227A1 JP 2019051631 W JP2019051631 W JP 2019051631W WO 2020166227 A1 WO2020166227 A1 WO 2020166227A1
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WIPO (PCT)
Prior art keywords
liquefied gas
temperature liquefied
low
filling
hose
Prior art date
Application number
PCT/JP2019/051631
Other languages
French (fr)
Japanese (ja)
Inventor
百代 結城
尾崎 誠
Original Assignee
石油資源開発株式会社
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Filing date
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Application filed by 石油資源開発株式会社 filed Critical 石油資源開発株式会社
Priority to SG11202108768Q priority Critical patent/SG11202108768QA/en
Priority to CN201980092129.0A priority patent/CN113474247B/en
Publication of WO2020166227A1 publication Critical patent/WO2020166227A1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/24Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67DDISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D9/00Apparatus or devices for transferring liquids when loading or unloading ships
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C9/00Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure

Definitions

  • the present invention relates to a floating-type low-temperature liquefied gas filling facility and a low-temperature liquefied gas delivery method using the same, and more particularly to filling low-temperature liquefied gas into containers arranged on a plurality of transportation trucks on the ground directly and simultaneously.
  • a floating low-temperature liquefied gas filling facility and a low-temperature liquefied gas delivery method using the same which enables the low-temperature liquefied gas to be easily and efficiently delivered to a place without a facility for receiving the low-temperature liquefied gas. is there.
  • liquefied gas such as liquefied petroleum gas (LPG) or liquefied natural gas (LNG), which has a low environmental load, is desirable as oil or gas to be purchased as fuel, and in particular, liquefied natural gas emits less CO 2 than petroleum products. It is expected to be distributed in the future due to its low price and low price.
  • the low-temperature liquefied gas liquefied at low temperature is transported by sea on a dedicated large-scale transport ship (LNG carrier).
  • LNG carrier dedicated large-scale transport ship
  • the transported low-temperature liquefied gas is usually transferred to the storage facility that serves as the primary base on the receiving side, and then transferred from this storage facility to the storage facility that serves as the secondary base on land, or after gasification in the gasification facility, the pipeline is used. It can be delivered directly to consumers.
  • the transported low temperature liquefied gas will be transferred from the large transport ship to the floating liquefied natural gas storage regasification facility (FSRU) and Distribution methods such as storage instead of bases or gasification and supply to pipelines on the ground have also been put into practical use.
  • FSRU floating liquefied natural gas storage regasification facility
  • Patent Document 1 a low-temperature liquefied gas storage facility on a floating structure, a pump for taking out the low-temperature liquefied gas in the storage facility to the outside of the storage facility and sending it to the supply side, vaporizes the low-temperature liquefied gas.
  • a cryogenic liquefied gas delivery device is disclosed.
  • Patent Document 1 since the floating type transportation facility can supply the low-temperature liquefied gas as a liquid or as a vaporized gas, there is no need to include the gasification facility in the facility on the receiving side, and thus there is an advantage that the options are increased.
  • a receiving facility is provided in a port that receives the low temperature liquefied gas.
  • the present invention has been made in view of the problems in the conventional floating type low temperature liquefied gas filling equipment and the low temperature liquefied gas delivery method using the same, and an object of the present invention is to provide a plurality of transportation trucks on the ground. It is possible to directly and simultaneously fill the low-temperature liquefied gas into the container placed in the container, and to easily and efficiently deliver the low-temperature liquefied gas even to a place without a facility for receiving the low-temperature liquefied gas.
  • a floating body low temperature liquefied gas filling facility and a low temperature liquefied gas delivery method using the same are provided.
  • the floating type low temperature liquefied gas filling equipment according to the present invention made to achieve the above object is a floating type low temperature liquefied gas filling equipment for delivering a low temperature liquefied gas from the sea to the land, and temporarily filling the low temperature liquefied gas.
  • a barge tank for storing the liquefied gas, a low-temperature liquefied gas is transferred from the liquefied gas supply facility to the barge tank, and a hose for transferring the low-temperature liquefied gas from the barge tank to a container arranged on a ground transportation truck,
  • the low-temperature liquefied gas distribution unit has an inlet for low-temperature liquefied gas connected to one end of the hose, a plurality of outlets for simultaneously discharging the low-temperature liquefied gas to the plurality of containers, and opening/closing of each outlet. And a plurality of injection hoses, one end of which is connected to the discharge port and the other end of which is connected to the injection port of the container, and a hook for lifting by the crane.
  • the liquefied gas distribution unit is attached to one end of the hose connected to the filling means when filling a plurality of containers at the same time, and is used by being lifted to a predetermined height by the crane.
  • the injection hose is provided with a sensor for detecting the connection with the container at the end of the connection side to the container or a switch that is activated when the connection with the container is made, and the injection hose is connected.
  • the opening/closing valve of the discharge port is configured so that the opening operation is not performed unless the injection hose is connected to the container.
  • the low-temperature liquefied gas distribution unit includes flow rate detection means for individually detecting the flow rate of the low-temperature liquefied gas discharged from each outlet, and based on the detected flow rate of the low-temperature liquefied gas, the on-off valve or separately from the on-off valve. It is preferable that the discharge flow rate of the low temperature liquefied gas can be individually adjusted by the flow rate adjusting means provided individually.
  • the low temperature liquefied gas is directly transferred from the barge tank by the filling means to the one or more containers via the hose and the low temperature liquefied gas distribution unit.
  • the low temperature liquefied gas is liquefied natural gas (LNG)
  • the liquefied gas supply equipment is a liquefied natural gas ship or a floating liquefied natural gas storage regasification equipment (FSRU)
  • the filling means is a pressure evaporator or It is preferably a pump.
  • a low-temperature liquefied gas delivery method according to the present invention made to achieve the above object is a low-temperature liquefied gas delivery method using the above-mentioned floating-type low-temperature liquefied gas filling equipment, wherein the liquefied-gas supply equipment has a floating-type low-temperature liquefied gas filling equipment.
  • a low-temperature liquefied gas filling facility is transferred from the liquefied gas supply facility to a barge tank of the floating-type low-temperature liquefied gas filling facility via a hose, and the floating-type low-temperature liquefied gas filling facility is transferred to
  • the container has a transportation step of moving it, and a charging step of directly charging the low-temperature liquefied gas from the barge tank to the container arranged on the ground transportation truck via the hose by the charging means, and simultaneously cools a plurality of containers at a low temperature.
  • the method further comprises a connecting step for connecting a low temperature liquefied gas distribution unit having a plurality of outlets at one end on the discharge side of the hose before the filling step.
  • the low-temperature liquefied gas distribution unit has a low-temperature liquefied gas inflow port connected to one end of the hose, a plurality of discharge ports for simultaneously discharging the low-temperature liquefied gas to the plurality of containers, and selectively opening and closing each discharge port. And a flow rate detection means for individually detecting the flow rate of the low-temperature liquefied gas discharged from each of the discharge ports, and the filling step includes the necessary discharge ports according to the number of the containers to be filled at the same time.
  • the low temperature liquefied gas is liquefied natural gas (LNG)
  • the liquefied gas supply equipment is a liquefied natural gas ship or a floating liquefied natural gas storage regasification equipment (FSRU)
  • the filling means is a pressure evaporator or It is preferably a pump.
  • the low-temperature liquefaction is performed because the floating low-temperature liquefied gas filling equipment directly fills the container arranged on the transportation truck.
  • Low-temperature liquefied gas can be easily transferred to many areas that do not have such equipment because it is possible to transfer low-temperature liquefied gas to the port that accepts gas as long as there is an area where transport trucks can be stopped. Can be delivered.
  • the low temperature liquefied gas is injected from the floating type low temperature liquefied gas filling unit by the low temperature liquefied gas distribution unit. Since the water is selectively diverted to the hose, it can be diverted according to the number of the transport trucks on the receiving side and simultaneous filling is possible. This makes it possible to efficiently perform the low-temperature liquefied gas filling operation.
  • the floating low-temperature liquefied gas filling equipment is provided with a hose used for receiving and discharging and a crane supporting the hose, so that the liquefied natural gas such as a liquefied natural gas ship or a floating liquefied natural gas storage regasification equipment is used. It is not necessary to equip the supply facility with a hose or crane for transferring liquefied natural gas. Similarly, it is not necessary to equip the receiving side with hoses or cranes. Therefore, as long as there is room for the truck to stop at the port, one floating body type low temperature liquefied gas filling facility can also be used to fill the low temperature liquefied gas into the truck container at multiple points.
  • Containers filled with low-temperature liquefied gas can be transported by trucks, railroads, freighters, etc., so there is no need for pipelines, dedicated equipment, primary terminals, secondary terminals, etc. It can be delivered to small-scale customers.
  • FIG. 3 is a schematic plan view showing a method for transferring low temperature liquefied gas to a container on the ground by a floating type low temperature liquefied gas filling facility according to an embodiment of the present invention.
  • FIG. 3 is a diagram schematically showing a structure of a low temperature liquefied gas distribution unit according to an embodiment of the present invention.
  • 4 is a flowchart illustrating a method for delivering a low temperature liquefied gas according to an exemplary embodiment of the present invention.
  • FIG. 1 is a diagram schematically showing a floating type low temperature liquefied gas charging facility according to an embodiment of the present invention and a low temperature liquefied gas delivery method using the same.
  • a floating body type low temperature liquefied gas filling facility 10 according to an embodiment of the present invention includes a floating body 11 floating on the sea, a barge tank 12, a hose 13, a crane 14 and a filling means provided on the floating body 11. 15 and a low temperature liquefied gas distribution unit 20.
  • the floating low-temperature liquefied gas filling equipment 10 transfers the low-temperature liquefied gas from the liquefied gas supply equipment to the barge tank 12 for temporary storage, and then moves to the delivery destination port to fill the filling means 15 with the filling means 15.
  • the floating low-temperature liquefied gas filling equipment 10 transfers the low-temperature liquefied gas from the liquefied gas supply equipment to the barge tank 12 for temporary storage, and then moves to the delivery destination port to fill the filling means 15 with the filling means 15.
  • the low temperature liquefied gas distribution unit 20 is used to simultaneously fill the plurality of containers with the low temperature liquefied gas. It is possible to efficiently deliver the low temperature liquefied gas in a short time.
  • FIG. 1(a) shows a barge of the floating low-temperature liquefied gas filling equipment 10 from the liquefied gas supply equipment 1 on the sea in a series of delivery flows for delivering the low-temperature liquefied gas from the liquefied gas supply equipment to the container on the ground.
  • FIG. 1B shows a stage of transferring the low temperature liquefied gas to the tank 12, and
  • FIG. 1B shows a stage of moving the floating type low temperature liquefied gas filling facility 10 for temporarily storing the low temperature liquefied gas to a delivery destination.
  • c) shows the step of filling the cryogenic liquefied gas stored in the barge tank 12 into a container arranged on a transportation truck waiting on the ground.
  • a floating low-temperature liquefied gas filling facility 10 is moored alongside a liquefied gas supply facility 1 standing by at the sea, a low-temperature liquefied gas storage tank of the liquefied gas supply facility 1 and a floating type A hose 13 connects the barge tank 12 of the low-temperature liquefied gas filling facility 10.
  • the low temperature liquefied gas is liquefied natural gas (LNG)
  • the liquefied gas supply equipment 1 is a liquefied natural gas ship or a floating liquefied natural gas storage regasification equipment (FSRU).
  • the buffer body 18 having a cushioning part such as rubber is horizontally placed so as not to directly collide. .. If the side surface of the floating body type low temperature liquefied gas filling equipment 10 is provided with a buffer portion, the buffer body 18 as another buffer element may not be prepared.
  • the buffer 18 shown in FIG. 1(a) is an air fender, and is shown as a shape having a plurality of tire-shaped rubbers around a cylindrical main body, as long as it does not directly collide during mooring. Any shape and material may be used.
  • the liquefied gas supply facility 1 stands by while mooring measures protruding from the sea or mooring means such as an underwater pier or a port pier, and the floating low-temperature liquefied gas filling facility 10 is used.
  • the low-temperature liquefied gas is delivered between the delivery destination and one or more delivery destinations. Therefore, the buffer 18 is installed as a permanent facility at a place where the floating low-temperature liquefied gas filling facility 10 is moored. By doing so, the floating low-temperature liquefied gas filling equipment 10 can be moored to the liquefied gas supply equipment 1 promptly.
  • the mooring of the floating low-temperature liquefied gas filling equipment 10 to the liquefied gas supply equipment 1 is carried out steadily using the mooring measure 19 so that the liquefied gas supply equipment 1 and the floating low-temperature liquefied gas filling equipment 10 are not displaced.
  • Liquefied natural gas needs to be -162°C or less to keep the liquid phase under normal pressure, and the hose 13 uses a flexible hose.
  • the liquefied gas supply facility 1 is very large, the outlet for discharging the low temperature liquefied gas from the storage tank is located at a high position above the sea level, and the height difference from the height of the barge tank 12 is large.
  • a crane 14 provided in the low temperature liquefied gas filling facility 10 is used. By providing the crane 14 on the floating low-temperature liquefied gas filling facility 10 side as described above, it is not necessary to install a special crane 14 for connecting a transfer hose to the liquefied gas supply facility 1, and various liquefied gas supplies can be provided. Acceptance from the facility 1 is possible.
  • the crane 14 is for suspending the hose 13 or the low temperature liquefied gas distribution unit 20 connected to the tip of the hose 13, the suspending weight is limited, and a large suspending heavy object is not necessary. Since it is necessary to lift the hose 13 high, it is preferable that the hose 13 reach a high place and that it is a telescopic crane.
  • the floating type low temperature liquefied gas filling equipment 10 is provided with a hose support 16 that supports the hose 13 from below at a predetermined height so that the hose 13 is unlikely to hang down.
  • the capacity of the barge tank 12 should not be made unnecessarily large in order to mainly deliver the low temperature liquefied gas to a small port without a receiving facility.
  • it has a size of about 3 m in diameter and about 20 m in length corresponding to four containers on a transportation truck.
  • the size is not limited to this, and may be determined in consideration of the topography and equipment conditions of the area where low-temperature liquefied gas needs to be delivered, the number of transport trucks to be accepted, traffic conditions, etc. I don't mind.
  • the floating low-temperature liquefied gas filling facility 10 that stores the low-temperature liquefied gas moves by sea toward the receiving port.
  • the floating body 11 is a barge ship, and since the floating body 11 itself does not have power for navigation such as an engine, it is shown as being connected to the tugboat 30 via a tow rope 31 and towed.
  • the floating body 11 may be equipped with an engine so that it can sail by itself.
  • a barge tank 12 and a container 41 arranged on a transportation truck 40 waiting on the ground are connected by a hose 13.
  • the low temperature liquefied gas in the barge tank 12 is filled in the container 41 by the filling means 15 connected.
  • the filling means 15 is a pressure evaporator or a pump.
  • the pressure evaporator a part of the low-temperature liquefied gas in the barge tank 12 is vaporized and then returned to the barge tank 12, and the pressure in the barge tank 12 is reduced.
  • the low temperature liquefied gas is sent out by raising.
  • a pump since the low temperature liquefied gas is directly boosted, it is necessary to put it in the flow path from the barge tank 12 to the container 41, and the hose 13 is connected so as to connect the pump and the container 41.
  • the filling means 15 may be a pressure evaporator or a pump as long as the low temperature liquefied gas can be delivered, but it is preferable to use a pressure evaporator that can stably pressurize the low temperature liquefied gas because it may sway due to waves at sea.
  • the hose 13 directly connects the end of the hose 13 to the inlet of the container 41. However, if there are multiple receiving containers 41, the end of the hose 13 is The low temperature liquefied gas distribution unit 20 is connected.
  • the low-temperature liquefied gas distribution unit 20 has only one inflow port for the low-temperature liquefied gas connected to the hose 13 on the upstream side. The flow path of is branched into a plurality.
  • the low temperature liquefied gas distribution unit 20 is provided with an on-off valve that selectively opens and closes the outlet of each outlet, and an injection hose 22 that connects each outlet and each container 41 is provided at the tip of the on-off valve. Connected. Therefore, it is possible to fill a plurality of containers 41 at the same time by selecting the open/close valve of the discharge port connected to the container 41 that performs the simultaneous filling from the plurality of discharge ports and opening it. ..
  • the hose 13 connecting the two is suspended by the crane 14 and held at a predetermined height.
  • the low temperature liquefied gas distribution unit 20 is connected, by suspending the low temperature liquefied gas distribution unit 20 by the crane 14 as shown in FIG. 1(c), the injection hose 22 will not be laid around on the ground, Since it does not hinder the passage of traffic, it is possible to prevent a reduction in workability.
  • the floating type low temperature liquefied gas filling facility 10 includes a hose support 17 that supports the hose 13 from below at a predetermined height so that the hose 13 does not easily hang down.
  • the hose support 16 is provided at one edge of the floating body 11 and the hose support 17 is provided at the edge opposite to the hose support 16 in FIG.
  • the hose supports (16, 17) may be unified to either one, and in this case, the unified hose support is such that the support height for supporting the hose 13 is variable. It is preferable to configure.
  • FIG. 2 is a schematic plan view showing a method of transferring low temperature liquefied gas to a container on the ground by a floating type low temperature liquefied gas filling facility according to an embodiment of the present invention.
  • FIG. 2 shows a state in which four transportation trucks 40 parked on the ground are simultaneously filled with the low temperature liquefied gas.
  • the transport truck 40 exemplifies a trailer type in which a container 41 is installed on a trailer serving as a dolly, and the container 41 is towed by a tow vehicle 42.
  • the low temperature liquefied gas distribution unit 20 includes a low temperature liquefied gas distributor 21 and an injection hose 22.
  • the low-temperature liquefied gas distributor 21 has one inflow of the low-temperature liquefied gas connected to the hose 13, but has four outflow ports, thereby having a substantially home-based casing.
  • the cryogenic liquefied gas distributor 21 is hung at a predetermined height behind the four transportation trucks 40 by the crane 14, and the four injection hoses 22 connected to the four outlets are connected to the respective containers 41. ..
  • the 4 containers 41 are connected as shown in FIG. 2 and the simultaneous filling is performed.
  • the second filling three containers 41 are connected, but as will be described later with reference to FIG. 3, since the low temperature liquefied gas distribution unit 20 has an opening/closing valve for each discharge port, the remaining container 41 not connected By closing only the open/close valve of one discharge port, it is possible to selectively fill three containers 41 simultaneously.
  • the transportation truck 40 in which the container 41 is filled with the low temperature liquefied gas can be directly transported to the next destination as it is, or the container 41 can be transferred to a freight car at the nearest station and transported by rail transportation. It can also be transported by sea by container freighter at the freight port of, and it is possible to develop various modes of transportation according to the traffic conditions at the receiving place.
  • FIG. 3 is a diagram schematically showing the structure of a low temperature liquefied gas distribution unit according to an embodiment of the present invention. Since the low temperature liquefied gas distribution unit 20 is detachably attached to one end of the hose 13, the low temperature liquefied gas distributor 21 has an end portion for connection with the hose 13 at the low temperature liquefied gas distributor 21 inlet port.
  • FIG. 3 is a diagram schematically showing the structure of a low temperature liquefied gas distribution unit according to an embodiment of the present invention. Since the low temperature liquefied gas distribution unit 20 is detachably attached to one end of the hose 13, the low temperature liquefied gas distributor 21 has an end portion for connection with the hose 13 at the low temperature liquefied gas distributor 21 inlet port.
  • FIG. 3 shows a configuration in which a flange is provided so as to be fixed to the flange provided at the end of the hose 13 so that the inlet can also be fixed with a bolt nut
  • the configuration is not limited to this as long as it is detachable, and for example, a
  • an end portion for connection that matches the shape of the end portion of the hose 13 is provided, such as a male screw that matches the female screw that the end portion of the hose 13 has.
  • the low temperature liquefied gas distributor 21 has a flow channel structure including a flow channel that branches into a plurality of parts.
  • the low temperature liquefied gas distributor 21 shown in FIG. 3 has four branches and has four outlets. Each of the four outlets is provided with an on-off valve 23, and the outlet for ejecting the low temperature liquefied gas can be selected depending on which on-off valve 23 is opened.
  • the on-off valve 23 may be manually or electrically operated, but in the case of electrically operated, the on-off valve 23 is supplied with power from a power supply means such as a storage battery provided in the floating body low temperature liquefied gas filling facility 10 via a power supply line wired along the hose 13. To supply. Further, in the case of electric driving, the opening/closing control of the opening/closing valve 23 is configured by wireless or wired.
  • a display lamp is provided near each on-off valve 23 or at a position where the correspondence with each on-off valve 23 can be seen so that the open/closed state of the on-off valve 23 can be visually confirmed.
  • the open state or the closed state is displayed by distinguishing whether the lamp is on or off, or by changing the color of the displayed lamp. Accordingly, even if the opening/closing valve 23 of the discharge port which is not connected to the container 41 is accidentally opened, it can be easily confirmed and can be corrected to the closed state before the start of filling.
  • a flow rate detecting means 24 is further provided on the downstream side of each on-off valve 23.
  • the discharge flow rate of the low temperature liquefied gas from each discharge port may differ depending on the shape of the flow path and the way of selecting the on-off valve 23. If the outflow amount is different, even if the filling is performed at the same time, the filling time differs between the containers 41, which may lead to a decrease in work efficiency. Therefore, in one embodiment, the discharge flow rate of the low temperature liquefied gas from each discharge port is detected by the flow rate detection means 24, and based on the result, the discharge flow rates of the low temperature liquefied gas from each discharge port are individually made equal. The opening degree of the on-off valve 23 is adjusted.
  • the discharge flow rate of the low temperature liquefied gas may be adjusted by providing a flow rate adjusting means different from the on-off valve 23. In that case, the discharge flow rate of the low temperature liquefied gas is adjusted by the flow rate adjusting means based on the discharge flow rate detected by the flow rate detecting means 24. adjust.
  • the injection hose 22 is a flexible hose. Unlike the hose 13, the injection hose 22 does not need to be frequently attached and detached, but it may be replaced when it deteriorates. Therefore, the low temperature liquefied gas distributor may be formed with a flange shape so that the end can be fixed with a bolt nut. 21 is detachably attached.
  • a hook 25 is provided on the upper surface of the low-temperature liquefied gas distributor 21, and when the low-temperature liquefied gas is filled, the hook 25 is lifted by the crane 14 as shown in FIG. By holding it, the filling operation can be easily performed. It also has a function of adjusting the height difference so that LNG is completely transferred to the barge tank 12 so that LNG does not remain in the hose when the hose 13 is separated after the completion of filling.
  • the low temperature liquefied gas distribution unit 20 having four outlets is illustrated, but the number of outlets is not limited to four. It may be more or less than four.
  • the structure in which the discharge ports are arranged in one horizontal row is illustrated, but according to the embodiment, a plurality of discharge ports may be arranged concentrically and at equal intervals so that the discharge characteristics are uniform.
  • the low temperature liquefied gas distributor 21 has a funnel shape, and when the outlet is arranged radially from the inlet, the low temperature liquefied gas is distributed.
  • the distributor 21 has a disc shape.
  • FIG. 4 is a flowchart illustrating a low temperature liquefied gas delivery method according to an exemplary embodiment of the present invention.
  • the gas is transferred (steps S400 to S420).
  • step S400 the floating low-temperature liquefied gas filling equipment 10 is moored with the buffer 18 sandwiched in the liquefied gas supply equipment 1.
  • the buffer body 18 is permanently installed in the liquefied gas supply equipment 1 according to the mooring position of the floating body type low temperature liquefied gas filling equipment 10. Therefore, it is not necessary to prepare the buffer body 18 every time the low temperature liquefied gas is received in the floating body low temperature liquefied gas filling facility 10. Mooring of the floating body type low temperature liquefied gas filling equipment 10 can be steadily performed by connecting the liquefied gas supply equipment 1 to the liquefied gas supply equipment 1 at a plurality of front and rear points by a mooring measure 19.
  • step S405 the liquefied gas supply equipment 1 and the hose 13 of the floating low-temperature liquefied gas filling equipment 10 are connected.
  • the hose 13 is lifted and connected by using the crane 14 provided in the floating type low temperature liquefied gas filling facility 10 and the hose 13 is held at a predetermined height during the transfer of the low temperature liquefied gas. It is possible to directly receive the low temperature liquefied gas from a large ship that does not have the crane 14 or the hose 13.
  • step S410 transfer of the low temperature liquefied gas from the liquefied gas supply equipment 1 to the barge tank 12 of the floating type low temperature liquefied gas filling equipment 10 is started.
  • the hose 13 of the floating low temperature liquefied gas filling equipment 10 is disconnected from the liquefied gas supply equipment 1 in step S420.
  • the separated hose 13 is recovered by the floating type low temperature liquefied gas filling equipment 10 by using the crane 14, and finally the mooring measure 19 is removed to end the low temperature liquefied gas receiving stage.
  • step S425 and S430 the floating low-temperature liquefied gas filling equipment 10 is moved to a port which is a delivery place of the low-temperature liquefied gas.
  • step S425 the floating type low temperature liquefied gas filling equipment 10 is moved toward the standby position of the transportation truck 40 in the port which is the delivery destination.
  • the floating type low temperature liquefied gas filling facility 10 does not have a power means for self-propelled navigation, and is towed by the tugboat 30 to move. Therefore, a tow rope hook for hanging the tow rope 31 is provided at the front and rear.
  • the floating-type low temperature liquefied gas filling facility 10 is equipped with power means for self-navigation, and moves by itself without using the tugboat 30 at the delivery destination.
  • the floating low-temperature liquefied gas filling equipment 10 arrives at the destination port, whether it is towed by the tugboat 30 or moved by itself, the floating low-temperature liquefied gas filling facility 10 docks at the standby position of the transportation truck 40 in the port (step S430).
  • step S435 it is determined whether or not a plurality of containers 41 are to be simultaneously filled. If there are a plurality of containers 41 to be simultaneously filled, the low temperature liquefied gas distribution unit 20 is connected to one end of the hose 13 in step S440.
  • step S445 a required number of the plurality of injection hoses 22 of the low temperature liquefied gas distribution unit 20 are connected to the containers 41 on the truck in the harbor according to the number of the containers 41 simultaneously filled with the low temperature liquefied gas.
  • the low-temperature liquefied gas distribution unit 20 has a plurality of outlets, but since the opening/closing valve 23 can switch the opening and closing for each of the outlets, the number of containers 41 to be simultaneously filled is smaller than the number of outlets of the low-temperature liquefied gas distribution unit 20. At least, the opening/closing valve 23 of the unused discharge port can be closed, and simultaneous filling can be performed by the number of connected containers 41.
  • step S455 the opening/closing valve 23 of the low temperature liquefied gas distribution unit 20 is opened according to the container 41 to be filled.
  • a sensor such as a sensor for detecting the connection with the container 41 or a switch such as a push switch that is activated when the connection with the container 41 is provided at the end portion of the injection hose 22 that is connected to the container 41. If the connection is not made, the opening/closing valve 23 of the discharge port to which the injection hose 22 is connected is not opened. This makes it possible to prevent the low temperature liquefied gas from being accidentally discharged to the injection hose 22 which is not connected to the container 41.
  • step S460 the filling means 15 of the floating type low temperature liquefied gas filling equipment 10 is operated to fill the container 41 with the low temperature liquefied gas.
  • the parking space of the transport truck 40 is narrow and the number of containers 41 that can be simultaneously filled is limited, or the demand for low-temperature liquefied gas is large, even one simultaneous filling by the low-temperature liquefied gas distribution unit 20 is still less than the demand.
  • the on-off valve 23 is once closed at the time when the first filling is completed, the transportation truck 40 is replaced and the new container 41 is connected, and then the filling in steps S435 to S460 is performed. Repeat the work.
  • the flow rate detecting means 24 sets the respective discharge ports.
  • the discharge flow rate of the low-temperature liquefied gas that flows is detected, and based on the result, the discharge flow rate of the low-temperature liquefied gas is individually adjusted by the on-off valve 23 or a flow rate adjusting means that is provided separately from the on-off valve 23.
  • control device for remotely controlling the on-off valve 23 or the flow rate adjusting means in the floating type low temperature liquefied gas filling equipment 10, and the output from the flow rate detecting means 24 is input to the control device by wire or wirelessly, and the control device respectively. It is realized by outputting a control signal based on the input value to the on-off valve 23 or the flow rate adjusting means in a wired or wireless manner.
  • step S450 the low-temperature liquefied gas distribution unit 20 is not connected to the hose 13 and directly connected to the container 41. Then, in step S460, the filling means 15 of the floating type low temperature liquefied gas filling equipment 10 is activated to fill the container 41 with the low temperature liquefied gas.
  • the low-temperature liquefied gas once filled in the barge tank 12 is continuously delivered to a plurality of destinations, when the low-temperature liquefied gas distribution unit 20 is connected to the tip of the hose 13 at the previous delivery point to perform the filling.
  • the work may start in a state where the low temperature liquefied gas distribution unit 20 is connected to the tip of the hose 13 in advance.
  • the low temperature liquefied gas distribution unit 20 may be removed and the hose 13 may be directly connected to the container 41, or the low temperature liquefied gas distribution unit 20 may be left connected.
  • the injection hose 22 of the book may be selectively connected, and the on-off valve 23 connected to the connected injection hose 22 may be opened to fill the low temperature liquefied gas.
  • the hose 13 receives the low-temperature liquefied gas from the liquefied-gas supply facility 1 and fills the container 41.
  • the hose 13-1 dedicated to reception and the hose 13-2 dedicated to filling with the low temperature liquefied gas distribution unit 20 still connected may be configured differently. In this case, the work of steps S435, S440, and S450 of FIG. 4 is unnecessary.
  • step S465 When the filling of the low temperature liquefied gas into the container 41 that needs to be filled is completed in step S465, the connection of the hose 13 or the injection hose 22 connected to the container 41 is released in step S470, and the floating type low temperature liquefied gas filling equipment 10 is installed. Store. After that, the filling is continued toward the next delivery destination, or the process returns to the liquefied gas supply facility 1 in preparation for the next delivery, and the operation from the receiving stage of the low temperature liquefied gas described above is repeated.
  • the temperature inside the container 41 is not normally cooled to the temperature of the low temperature liquefied gas. Therefore, in addition to the residual gas such as methane gas inside the container 41, a part of the low temperature liquefied gas is included. Is gasified, and the pressure in the container 41 temporarily rises in the initial stage of filling. As the low temperature liquefied gas is filled and the temperature inside the container 41 decreases, the pressure inside the container 41 also decreases accordingly.
  • the gas in the container 41 may be returned to the barge tank 12 on the supply side to suppress the influence of the pressure increase in the container 41. It is possible that the composition of the components of the low temperature liquefied gas finally filled for recovery may change.
  • the gas in the container 41 is cooled and dissolved in the low temperature liquefied gas, it is possible to suppress the pressure rise in the container 41. According to this method, since the gas component is not collected in the barge tank 12, the composition of the low-temperature liquefied gas to be filled does not change. Also, it is not necessary to install a return hose exclusively for gas.

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  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
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Abstract

Provided are a floating low-temperature liquefied gas filling equipment and a low-temperature liquefied gas delivery method using the same, for filling a low-temperature liquefied gas directly and simultaneously into containers disposed on a plurality of freight trucks on the ground, allowing the low-temperature liquefied gas to be delivered readily and efficiently even to a location where there is no low-temperature liquefied gas receiving equipment. The floating low-temperature liquefied gas filling equipment according to the present invention delivers the low-temperature liquefied gas from above the sea to the land. The floating low-temperature liquefied gas filling equipment comprises: a barge tank wherein the low-temperature liquefied gas is temporarily filled and stored; a hose for transferring the low-temperature liquefied gas from liquefied gas supply equipment to the barge tank, and for transferring the low-temperature liquefied gas from the barge tank to the containers on the freight trucks above the ground; a low-temperature liquefied gas distribution unit removably attached to one end of the hose; a crane for holding the hose at a predetermined height during the transfer of the low-temperature liquefied gas; and a filling means for filling the low-temperature liquefied gas into the containers. The low-temperature liquefied gas distribution unit comprises a low-temperature liquefied gas inflow port to be connected to the one end of the hose, a plurality of discharge ports for discharging the low-temperature liquefied gas into a plurality of containers simultaneously, and opening-closing valves for selectively opening and closing the respective discharge ports.

Description

浮体式低温液化ガス充填設備及びこれを用いた低温液化ガス配送方法Floating type low temperature liquefied gas filling equipment and low temperature liquefied gas delivery method using the same
 本発明は、浮体式低温液化ガス充填設備及びこれを用いた低温液化ガス配送方法に関し、特に、地上の複数の輸送トラック上に配置されたコンテナに直接にまた同時に低温液化ガスを充填することを可能とし、低温液化ガスの受け入れ設備の無い場所にでも、容易にまた効率的に低温液化ガスを配送することを可能とする浮体式低温液化ガス充填設備及びこれを用いた低温液化ガス配送方法である。 The present invention relates to a floating-type low-temperature liquefied gas filling facility and a low-temperature liquefied gas delivery method using the same, and more particularly to filling low-temperature liquefied gas into containers arranged on a plurality of transportation trucks on the ground directly and simultaneously. With a floating low-temperature liquefied gas filling facility and a low-temperature liquefied gas delivery method using the same, which enables the low-temperature liquefied gas to be easily and efficiently delivered to a place without a facility for receiving the low-temperature liquefied gas. is there.
 自国で石油やガスを産出する国は、自国の消費量を超える産出量があれば、必要量を消費した後の余剰分の石油やガスを輸出に回すことができるが、石油やガスの産出量が消費量に満たなければ他国から輸入することになる。この場合、燃料として購入する石油やガスとしては環境負荷の少ない液化石油ガス(LPG)や液化天然ガス(LNG)などの液化ガスが望ましく、特に液化天然ガスは石油製品に比べてCO排出量が少なく、価格も安いことから今後の流通が期待されている。 A country that produces oil and gas in its own country can export excess oil and gas after consuming the necessary amount to export if it has an output that exceeds its own consumption. If the quantity is less than the consumption, it will be imported from another country. In this case, liquefied gas such as liquefied petroleum gas (LPG) or liquefied natural gas (LNG), which has a low environmental load, is desirable as oil or gas to be purchased as fuel, and in particular, liquefied natural gas emits less CO 2 than petroleum products. It is expected to be distributed in the future due to its low price and low price.
 低温により液化した低温液化ガスは専用の大型輸送船(LNG船)で海上輸送される。輸送された低温液化ガスは、通常受け入れ側の一次基地となる貯蔵設備に移され、この貯蔵設備から二次基地となる貯蔵設備に陸上移送するか、ガス化設備でガス化した後パイプラインを使って直接需要者のもとに届けられる。
 また、受け入れ側の一次基地となる貯蔵設備やガス化設備が設けられない場合、輸送された低温液化ガスは大型輸送船から浮体式液化天然ガス貯蔵再ガス化設備(FSRU)に移され、一次基地の代わりに貯蔵したり、ガス化して地上のパイプラインに供給されたりする流通方法も実用化されている。
The low-temperature liquefied gas liquefied at low temperature is transported by sea on a dedicated large-scale transport ship (LNG carrier). The transported low-temperature liquefied gas is usually transferred to the storage facility that serves as the primary base on the receiving side, and then transferred from this storage facility to the storage facility that serves as the secondary base on land, or after gasification in the gasification facility, the pipeline is used. It can be delivered directly to consumers.
In addition, if there is no storage facility or gasification facility that will be the primary base on the receiving side, the transported low temperature liquefied gas will be transferred from the large transport ship to the floating liquefied natural gas storage regasification facility (FSRU) and Distribution methods such as storage instead of bases or gasification and supply to pipelines on the ground have also been put into practical use.
 しかし、LNG船やFSRUが接岸できるような大型かつ十分な深度を持つ港湾設備を備えた港は限られており、低温液化ガスの受け入れ態勢が整っている地域は限定される。特に島が点在する地域や発展途上の地域ではこうした大型の専用インフラを、ガスを利用したい全ての地域に整備するのは現実的ではない。 However, there are only a limited number of ports equipped with port facilities that are large and have sufficient depth so that LNG ships and FSRUs can dock alongside them, and regions that are ready to receive low-temperature liquefied gas are limited. Especially in areas with scattered islands and developing areas, it is not realistic to install such large-scale dedicated infrastructure in all areas where gas is desired.
 特許文献1には、浮体構造物上に、低温液化ガスの貯蔵設備と、貯蔵設備内の低温液化ガスを貯蔵設備外へ取り出して被供給側へ送るようにするポンプと、低温液化ガスを気化したガスとして送り出せるようにする気化器を有する供給設備とを備え、低温液化ガスを液体のまま、あるいは気化ガスとして被供給側へ供給できるようにしてある浮体式輸送設備を備えた離島への低温液化ガス配送装置が開示されている。 In Patent Document 1, a low-temperature liquefied gas storage facility on a floating structure, a pump for taking out the low-temperature liquefied gas in the storage facility to the outside of the storage facility and sending it to the supply side, vaporizes the low-temperature liquefied gas. A supply facility having a vaporizer that enables it to be sent out as a liquefied gas, and a low temperature liquefied gas as a liquid, or to a remote island equipped with a floating type transportation facility that can be supplied as a vaporized gas to the supplied side. A cryogenic liquefied gas delivery device is disclosed.
 特許文献1によれば、浮体式輸送設備は低温液化ガスを液体のまま、あるいは気化ガスとして供給できることから、受け入れ側の設備に必ずしもガス化設備を含む必要がなくなるなど、選択肢が増えるというメリットはあるが、特許文献1の技術では、低温液化ガスを受け入れる港湾に、こうした受け入れ設備があることが前提となっている。 According to Patent Document 1, since the floating type transportation facility can supply the low-temperature liquefied gas as a liquid or as a vaporized gas, there is no need to include the gasification facility in the facility on the receiving side, and thus there is an advantage that the options are increased. However, in the technique of Patent Document 1, it is premised that such a receiving facility is provided in a port that receives the low temperature liquefied gas.
 しかし小規模であるとしても、受け入れ設備の建設費用は高額であり、低温液化ガスを配送する港湾毎に容易に建設できるものではない。また燃料として低温液化ガスを必要とする地域と、低温液化ガスを配送する港湾とが離れている場合には、これに加えて長いパイプラインの建設が必要となり、実現は難しい。
 そこで低温液化ガスの受け入れ地点となる港に受け入れ設備がない場合でも、低温液化ガスを容易に、かつ効率的に配送する設備や方法の実現が望まれる。
However, even if it is a small scale, the construction cost of the receiving equipment is high, and it cannot be easily constructed for each port that delivers the low temperature liquefied gas. In addition, in the case where a region requiring low-temperature liquefied gas as fuel and a port for delivering low-temperature liquefied gas are distant from each other, a long pipeline must be constructed in addition to this, which is difficult to realize.
Therefore, even if there is no receiving facility at the port that receives the low temperature liquefied gas, it is desired to realize a facility and a method for delivering the low temperature liquefied gas easily and efficiently.
特開2009-191860号公報JP, 2009-191860, A
 本発明は、上記従来の浮体式低温液化ガス充填設備及びこれを用いた低温液化ガス配送方法における問題点に鑑みてなされたものであって、本発明の目的は、地上の複数の輸送トラック上に配置されたコンテナに直接にまた同時に低温液化ガスを充填することを可能とし、低温液化ガスの受け入れ設備の無い場所にでも、容易にまた効率的に低温液化ガスを配送することを可能とする浮体式低温液化ガス充填設備及びこれを用いた低温液化ガス配送方法を提供するところにある。 The present invention has been made in view of the problems in the conventional floating type low temperature liquefied gas filling equipment and the low temperature liquefied gas delivery method using the same, and an object of the present invention is to provide a plurality of transportation trucks on the ground. It is possible to directly and simultaneously fill the low-temperature liquefied gas into the container placed in the container, and to easily and efficiently deliver the low-temperature liquefied gas even to a place without a facility for receiving the low-temperature liquefied gas. A floating body low temperature liquefied gas filling facility and a low temperature liquefied gas delivery method using the same are provided.
上記目的を達成するためになされた本発明による浮体式低温液化ガス充填設備は、海上から陸上に低温液化ガスを配送する浮体式低温液化ガス充填設備であって、低温液化ガスを一時的に充填して貯蔵するバージタンクと、液化ガス供給設備から前記バージタンクに低温液化ガスを移送し、前記バージタンクから地上の輸送トラック上に配置されたコンテナに低温液化ガスを移送するためのホースと、前記ホースの一端に着脱可能に取り付けられる低温液化ガス分配ユニットと、低温液化ガス移送中に前記ホースを所定の高さに保持するクレーンと、低温液化ガスを前記コンテナに充填する充填手段と、を有し、前記低温液化ガス分配ユニットは前記ホースの一端に接続される低温液化ガスの流入口と、低温液化ガスを複数の前記コンテナに同時に排出する複数の排出口と、それぞれの排出口の開閉を選択的に行う開閉弁と、一端が前記排出口に接続され、他端が前記コンテナの注入口に接続される複数の注入ホースと、前記クレーンによって吊り上げるためのフックと、を備え、前記低温液化ガス分配ユニットは同時に複数のコンテナに充填する場合に前記充填手段に接続された前記ホースの一端に取り付けられ、前記クレーンによって所定の高さに吊り上げられて使用され、前記低温液化ガス分配ユニットはロート状又は円盤状の形状であり、前記複数の排出口は流出特性が均等となるよう等間隔に配置され、前記開閉弁の弁開度は、それぞれの排出口からの低温液化ガスの排出流量が等しくなるように調整され、前記注入ホースはコンテナへの接続側の端部にコンテナとの接続を検出するセンサ又はコンテナとの接続が行われると作動するスイッチを備え、前記注入ホースが接続される排出口の開閉弁は、前記注入ホースのコンテナへの接続が行われないと開動作が行われないように構成されることを特徴とする。 The floating type low temperature liquefied gas filling equipment according to the present invention made to achieve the above object is a floating type low temperature liquefied gas filling equipment for delivering a low temperature liquefied gas from the sea to the land, and temporarily filling the low temperature liquefied gas. A barge tank for storing the liquefied gas, a low-temperature liquefied gas is transferred from the liquefied gas supply facility to the barge tank, and a hose for transferring the low-temperature liquefied gas from the barge tank to a container arranged on a ground transportation truck, A low temperature liquefied gas distribution unit detachably attached to one end of the hose, a crane that holds the hose at a predetermined height during low temperature liquefied gas transfer, and a filling unit that fills the container with the low temperature liquefied gas. The low-temperature liquefied gas distribution unit has an inlet for low-temperature liquefied gas connected to one end of the hose, a plurality of outlets for simultaneously discharging the low-temperature liquefied gas to the plurality of containers, and opening/closing of each outlet. And a plurality of injection hoses, one end of which is connected to the discharge port and the other end of which is connected to the injection port of the container, and a hook for lifting by the crane. The liquefied gas distribution unit is attached to one end of the hose connected to the filling means when filling a plurality of containers at the same time, and is used by being lifted to a predetermined height by the crane. It has a funnel shape or a disk shape, and the plurality of discharge ports are arranged at equal intervals so that the outflow characteristics are even, and the opening degree of the on-off valve is the discharge flow rate of the low temperature liquefied gas from each discharge port. Are adjusted to be equal, and the injection hose is provided with a sensor for detecting the connection with the container at the end of the connection side to the container or a switch that is activated when the connection with the container is made, and the injection hose is connected. The opening/closing valve of the discharge port is configured so that the opening operation is not performed unless the injection hose is connected to the container.
 前記低温液化ガス分配ユニットはそれぞれの排出口から排出される低温液化ガスの流量を個別に検出する流量検出手段を備え、検出した低温液化ガスの流量に基づき前記開閉弁若しくは前記開閉弁とは別に個別に設けられる流量調整手段により低温液化ガスの排出流量を個別に調整可能であることが好ましい。 The low-temperature liquefied gas distribution unit includes flow rate detection means for individually detecting the flow rate of the low-temperature liquefied gas discharged from each outlet, and based on the detected flow rate of the low-temperature liquefied gas, the on-off valve or separately from the on-off valve. It is preferable that the discharge flow rate of the low temperature liquefied gas can be individually adjusted by the flow rate adjusting means provided individually.
 低温液化ガスは前記充填手段により前記バージタンクから前記ホース、前記低温液化ガス分配ユニットを介して一又は複数の前記コンテナに直接移送されることが好ましい。 It is preferable that the low temperature liquefied gas is directly transferred from the barge tank by the filling means to the one or more containers via the hose and the low temperature liquefied gas distribution unit.
 前記低温液化ガスは液化天然ガス(LNG)であり、前記液化ガス供給設備は液化天然ガス船または浮体式液化天然ガス貯蔵再ガス化設備(FSRU)であり、前記充填手段は加圧蒸発器又はポンプであることが好ましい。 The low temperature liquefied gas is liquefied natural gas (LNG), the liquefied gas supply equipment is a liquefied natural gas ship or a floating liquefied natural gas storage regasification equipment (FSRU), and the filling means is a pressure evaporator or It is preferably a pump.
 上記目的を達成するためになされた本発明による低温液化ガス配送方法は上記浮体式低温液化ガス充填設備を使用した低温液化ガス配送方法であって、液化ガス供給設備に浮体式低温液化ガス充填設備を係留した後、液化ガス供給設備から浮体式低温液化ガス充填設備のバージタンクにホースを介して低温液化ガスを移送する受け入れ段階と、浮体式低温液化ガス充填設備を低温液化ガスの引き渡し場所まで移動させる輸送段階と、充填手段により前記バージタンクから前記ホースを介して地上の輸送トラック上に配置されたコンテナに直接低温液化ガスを充填する充填段階と、を有し、同時に複数のコンテナに低温液化ガスを充填する場合、前記充填段階の前に前記ホースの排出側の一端に複数の排出口を備える低温液化ガス分配ユニットを接続する接続段階をさらに有することを特徴とする。 A low-temperature liquefied gas delivery method according to the present invention made to achieve the above object is a low-temperature liquefied gas delivery method using the above-mentioned floating-type low-temperature liquefied gas filling equipment, wherein the liquefied-gas supply equipment has a floating-type low-temperature liquefied gas filling equipment. After mooring the liquefied gas supply facility, a low-temperature liquefied gas filling facility is transferred from the liquefied gas supply facility to a barge tank of the floating-type low-temperature liquefied gas filling facility via a hose, and the floating-type low-temperature liquefied gas filling facility is transferred to The container has a transportation step of moving it, and a charging step of directly charging the low-temperature liquefied gas from the barge tank to the container arranged on the ground transportation truck via the hose by the charging means, and simultaneously cools a plurality of containers at a low temperature. In the case of filling with liquefied gas, the method further comprises a connecting step for connecting a low temperature liquefied gas distribution unit having a plurality of outlets at one end on the discharge side of the hose before the filling step.
 前記低温液化ガス分配ユニットは前記ホースの一端に接続される低温液化ガスの流入口と、低温液化ガスを複数の前記コンテナに同時に排出する複数の排出口と、それぞれの排出口の開閉を選択的に行う開閉弁と、それぞれの排出口から排出される低温液化ガスの流量を個別に検出する流量検出手段とを備え、前記充填段階は同時に充填する前記コンテナの数に合わせて必要な排出口の開閉弁を選択的に開口する選択段階と、前記流量検出手段により検出された低温液化ガスの流量に基づき前記開閉弁若しくは前記開閉弁とは別に個別に設けられる流量調整手段により低温液化ガスの排出流量を個別に調整する調整段階と、を含むことが好ましい。 The low-temperature liquefied gas distribution unit has a low-temperature liquefied gas inflow port connected to one end of the hose, a plurality of discharge ports for simultaneously discharging the low-temperature liquefied gas to the plurality of containers, and selectively opening and closing each discharge port. And a flow rate detection means for individually detecting the flow rate of the low-temperature liquefied gas discharged from each of the discharge ports, and the filling step includes the necessary discharge ports according to the number of the containers to be filled at the same time. The selection step of selectively opening the on-off valve, and the discharge of the low-temperature liquefied gas by the on-off valve or a flow rate adjusting means provided separately from the on-off valve based on the flow rate of the low-temperature liquefied gas detected by the flow rate detecting means. It is preferable to include an adjusting step of individually adjusting the flow rate.
 前記低温液化ガスは液化天然ガス(LNG)であり、前記液化ガス供給設備は液化天然ガス船または浮体式液化天然ガス貯蔵再ガス化設備(FSRU)であり、前記充填手段は加圧蒸発器又はポンプであることが好ましい。 The low temperature liquefied gas is liquefied natural gas (LNG), the liquefied gas supply equipment is a liquefied natural gas ship or a floating liquefied natural gas storage regasification equipment (FSRU), and the filling means is a pressure evaporator or It is preferably a pump.
 本発明による浮体式低温液化ガス充填設備及びこれを用いた低温液化ガス配送方法によれば、浮体式低温液化ガス充填設備から直接に輸送トラック上に配置されたコンテナに充填されるため、低温液化ガスを受け入れる港には輸送トラックを停車するエリアさえあれば低温液化ガスの移送ができるため、高額な受け入れ設備を建設する必要がなく、こうした設備を持たない多くの地域にも容易に低温液化ガスの配送が可能である。 According to the floating low-temperature liquefied gas filling equipment and the low-temperature liquefied gas delivery method using the same according to the present invention, the low-temperature liquefaction is performed because the floating low-temperature liquefied gas filling equipment directly fills the container arranged on the transportation truck. Low-temperature liquefied gas can be easily transferred to many areas that do not have such equipment because it is possible to transfer low-temperature liquefied gas to the port that accepts gas as long as there is an area where transport trucks can be stopped. Can be delivered.
 また、本発明による本浮体式低温液化ガス充填設備及びこれを用いた低温液化ガス配送方法によれば、低温液化ガスは、低温液化ガス分配ユニットにより浮体式低温液化ガス充填設備から複数本の注入ホースに選択的に分流されるために、受け入れ側の輸送トラックの台数に合わせて分流し、同時充填が可能となる。これにより効率的に低温液化ガスの充填作業を行うことが可能となる。複数台のコンテナに同時充填する際、低温液化ガス分配ユニットのそれぞれの排出口から排出される低温液化ガスの流量を個別に検出する流量検出手段と流量調節手段を備えることにより、充填時間のばらつきを抑え、最も効率よく充填作業を行うことが可能となる。 Further, according to the present floating type low temperature liquefied gas filling facility and the low temperature liquefied gas delivery method using the same, the low temperature liquefied gas is injected from the floating type low temperature liquefied gas filling unit by the low temperature liquefied gas distribution unit. Since the water is selectively diverted to the hose, it can be diverted according to the number of the transport trucks on the receiving side and simultaneous filling is possible. This makes it possible to efficiently perform the low-temperature liquefied gas filling operation. When filling multiple containers at the same time, it is possible to vary the filling time by providing flow rate detecting means and flow rate adjusting means for individually detecting the flow rate of the low temperature liquefied gas discharged from each outlet of the low temperature liquefied gas distribution unit. Therefore, it becomes possible to carry out the filling work most efficiently.
 さらに、本発明による浮体式低温液化ガス充填設備は、受け入れと払い出しに使用するホースとこれを支持するクレーンを備えるため、液化天然ガス船または浮体式液化天然ガス貯蔵再ガス化設備などの液化ガス供給設備側には、液化天然ガス移送のためのホースやクレーンを装備する必要がない。同様に受け入れ側にもホースやクレーンを装備する必要がない。従い、港にトラックが停車する余地さえあれば、1つの浮体式低温液化ガス充填設備により、複数地点でのトラック上コンテナへ低温液化ガス充填も可能となる。また、例えば陸上にトラック充填設備を備えた一次基地が建設される等により、当該地でのコンテナへの低温液化ガス充填が将来不要となった場合でも、別の地域や島へ曳航或いは自走し、そうした一次基地の無い場所でも、低温液化ガスの配給事業を実施することが出来る。 Further, the floating low-temperature liquefied gas filling equipment according to the present invention is provided with a hose used for receiving and discharging and a crane supporting the hose, so that the liquefied natural gas such as a liquefied natural gas ship or a floating liquefied natural gas storage regasification equipment is used. It is not necessary to equip the supply facility with a hose or crane for transferring liquefied natural gas. Similarly, it is not necessary to equip the receiving side with hoses or cranes. Therefore, as long as there is room for the truck to stop at the port, one floating body type low temperature liquefied gas filling facility can also be used to fill the low temperature liquefied gas into the truck container at multiple points. Even if it becomes unnecessary to fill the container with low temperature liquefied gas in the future due to the construction of a primary base equipped with truck filling equipment on land, for example, towing or self-propelled to another area or island. However, it is possible to carry out a low-temperature liquefied gas distribution business even in a place without such a primary terminal.
 低温液化ガスが充填されたコンテナはトラック、鉄道、貨物船等で運搬可能である為、パイプラインや専用設備、1次基地・2次基地などを必要とせずに、直接広範囲に点在するより小規模な需要家に届けることが可能となる。 Containers filled with low-temperature liquefied gas can be transported by trucks, railroads, freighters, etc., so there is no need for pipelines, dedicated equipment, primary terminals, secondary terminals, etc. It can be delivered to small-scale customers.
本発明の実施形態による浮体式低温液化ガス充填設備と、これを用いた低温液化ガス配送方法を概略的に示す図である。It is a figure which shows schematically the floating type low temperature liquefied gas filling equipment by embodiment of this invention, and the low temperature liquefied gas delivery method using the same. 本発明の実施形態による浮体式低温液化ガス充填設備による地上のコンテナに低温液化ガスを移送する方法を平面的に示す概略的図である。FIG. 3 is a schematic plan view showing a method for transferring low temperature liquefied gas to a container on the ground by a floating type low temperature liquefied gas filling facility according to an embodiment of the present invention. 本発明の実施形態による低温液化ガス分配ユニットの構造を概略的に示す図である。FIG. 3 is a diagram schematically showing a structure of a low temperature liquefied gas distribution unit according to an embodiment of the present invention. 本発明の実施形態による低温液化ガス配送方法を説明するためのフローチャートである。4 is a flowchart illustrating a method for delivering a low temperature liquefied gas according to an exemplary embodiment of the present invention.
 次に、本発明に係る浮体式低温液化ガス充填設備及びこれを用いた低温液化ガス配送方法を実施するための形態の具体例を、図面を参照しながら詳細に説明する。
 図1は、本発明の実施形態による浮体式低温液化ガス充填設備と、これを用いた低温液化ガス配送方法を概略的に示す図である。
 図1を参照すると、本発明の実施形態による浮体式低温液化ガス充填設備10は、海上に浮かぶ浮体本体11と、浮体本体11上に備えられたバージタンク12、ホース13、クレーン14、充填手段15、及び低温液化ガス分配ユニット20を有する。
Next, a specific example of a mode for carrying out the floating type low temperature liquefied gas filling equipment and the low temperature liquefied gas delivery method using the same according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagram schematically showing a floating type low temperature liquefied gas charging facility according to an embodiment of the present invention and a low temperature liquefied gas delivery method using the same.
Referring to FIG. 1, a floating body type low temperature liquefied gas filling facility 10 according to an embodiment of the present invention includes a floating body 11 floating on the sea, a barge tank 12, a hose 13, a crane 14 and a filling means provided on the floating body 11. 15 and a low temperature liquefied gas distribution unit 20.
 本発明の実施形態による浮体式低温液化ガス充填設備10は、液化ガス供給設備から低温液化ガスをバージタンク12に移送して一時的に貯蔵した後、配送先の港に移動し、充填手段15により、バージタンク12から、地上に待機する輸送トラック上に配置されたコンテナに、直接低温液化ガスを移送することで、受け入れ設備の無い配送先でも容易に低温液化ガスを配送することを可能とする設備である。
 また実施形態による浮体式低温液化ガス充填設備10によれば、移送先のコンテナが複数ある場合でも、低温液化ガス分配ユニット20を使用して、同時に複数のコンテナに低温液化ガスを充填するため、短時間で効率的に低温液化ガスを配送することが可能である。
The floating low-temperature liquefied gas filling equipment 10 according to the embodiment of the present invention transfers the low-temperature liquefied gas from the liquefied gas supply equipment to the barge tank 12 for temporary storage, and then moves to the delivery destination port to fill the filling means 15 with the filling means 15. As a result, by directly transferring the low temperature liquefied gas from the barge tank 12 to the container arranged on the transportation truck standing on the ground, it is possible to easily deliver the low temperature liquefied gas even to a delivery destination without a receiving facility. It is equipment to do.
Further, according to the floating type low temperature liquefied gas filling facility 10 according to the embodiment, even when there are a plurality of destination containers, the low temperature liquefied gas distribution unit 20 is used to simultaneously fill the plurality of containers with the low temperature liquefied gas. It is possible to efficiently deliver the low temperature liquefied gas in a short time.
 図1(a)は、液化ガス供給設備から地上のコンテナまで低温液化ガスを配送する一連の配送フローの内で、海上にて液化ガス供給設備1から、浮体式低温液化ガス充填設備10のバージタンク12に、低温液化ガスを移送する段階を示し、図1(b)は、低温液化ガスを一時貯蔵する浮体式低温液化ガス充填設備10を、配送先まで移動する段階を示し、図1(c)は、バージタンク12に貯蔵した低温液化ガスを、地上に待機する輸送トラック上に配置されたコンテナに充填する段階を示す。 FIG. 1(a) shows a barge of the floating low-temperature liquefied gas filling equipment 10 from the liquefied gas supply equipment 1 on the sea in a series of delivery flows for delivering the low-temperature liquefied gas from the liquefied gas supply equipment to the container on the ground. FIG. 1B shows a stage of transferring the low temperature liquefied gas to the tank 12, and FIG. 1B shows a stage of moving the floating type low temperature liquefied gas filling facility 10 for temporarily storing the low temperature liquefied gas to a delivery destination. c) shows the step of filling the cryogenic liquefied gas stored in the barge tank 12 into a container arranged on a transportation truck waiting on the ground.
 図1(a)を参照すると、浮体式低温液化ガス充填設備10は、海上に待機する液化ガス供給設備1に横付けして係留され、液化ガス供給設備1の低温液化ガス貯蔵タンクと、浮体式低温液化ガス充填設備10のバージタンク12とが、ホース13により接続される。
 実施形態では、低温液化ガスは液化天然ガス(LNG)であり、液化ガス供給設備1は液化天然ガス船または浮体式液化天然ガス貯蔵再ガス化設備(FSRU)である。海上では波があるため、浮体式低温液化ガス充填設備10が液化ガス供給設備1に横付けして係留する際、直接衝突しないように、ゴムなどの緩衝部を備える緩衝体18を挟んで横付けする。浮体式低温液化ガス充填設備10の側面に緩衝部を備える場合は、別の緩衝要素としての緩衝体18を用意しなくてもよい。図1(a)に示す緩衝体18はエアーフェンダーであり、円筒状の本体周辺に複数のタイヤ状のゴムを備えた形状に示すが、係留の際に直接衝突しないようにするものであれば、形状や材質はどのようなものでも構わない。
Referring to FIG. 1( a ), a floating low-temperature liquefied gas filling facility 10 is moored alongside a liquefied gas supply facility 1 standing by at the sea, a low-temperature liquefied gas storage tank of the liquefied gas supply facility 1 and a floating type A hose 13 connects the barge tank 12 of the low-temperature liquefied gas filling facility 10.
In the embodiment, the low temperature liquefied gas is liquefied natural gas (LNG), and the liquefied gas supply equipment 1 is a liquefied natural gas ship or a floating liquefied natural gas storage regasification equipment (FSRU). Since there is a wave on the sea, when the floating low-temperature liquefied gas filling equipment 10 is moored side by side with the liquefied gas supply equipment 1, the buffer body 18 having a cushioning part such as rubber is horizontally placed so as not to directly collide. .. If the side surface of the floating body type low temperature liquefied gas filling equipment 10 is provided with a buffer portion, the buffer body 18 as another buffer element may not be prepared. The buffer 18 shown in FIG. 1(a) is an air fender, and is shown as a shape having a plurality of tire-shaped rubbers around a cylindrical main body, as long as it does not directly collide during mooring. Any shape and material may be used.
 実施形態では、液化ガス供給設備1は海中から突き出している係留策や海中桟橋、港湾桟橋等の係留手段に係留された状態で待機し、浮体式低温液化ガス充填設備10が液化ガス供給設備1と1箇所または複数箇所の配送先との間を行き来して低温液化ガスを配送する。そのため緩衝体18は常設設備として浮体式低温液化ガス充填設備10を係留する場所に設置する。こうすることで、液化ガス供給設備1への浮体式低温液化ガス充填設備10の係留を速やかに行うことができる。液化ガス供給設備1への浮体式低温液化ガス充填設備10の係留は、係船策19を使って液化ガス供給設備1と浮体式低温液化ガス充填設備10とが位置ずれしないように着実に行う。 In the embodiment, the liquefied gas supply facility 1 stands by while mooring measures protruding from the sea or mooring means such as an underwater pier or a port pier, and the floating low-temperature liquefied gas filling facility 10 is used. The low-temperature liquefied gas is delivered between the delivery destination and one or more delivery destinations. Therefore, the buffer 18 is installed as a permanent facility at a place where the floating low-temperature liquefied gas filling facility 10 is moored. By doing so, the floating low-temperature liquefied gas filling equipment 10 can be moored to the liquefied gas supply equipment 1 promptly. The mooring of the floating low-temperature liquefied gas filling equipment 10 to the liquefied gas supply equipment 1 is carried out steadily using the mooring measure 19 so that the liquefied gas supply equipment 1 and the floating low-temperature liquefied gas filling equipment 10 are not displaced.
 液化天然ガスは常圧で液相を保つには-162℃以下にする必要があり、ホース13はフレキシブルホースを使用する。液化ガス供給設備1は非常に大型で、貯蔵タンクから低温液化ガスを排出する排出口は海面から高い位置にあり、バージタンク12の高さとの高低差が大きいため、ホース13の接続には浮体式低温液化ガス充填設備10に備えるクレーン14を使用する。このように浮体式低温液化ガス充填設備10側にクレーン14を備えることにより、液化ガス供給設備1には移送ホースを接続するための特別なクレーン14を設置する必要がなく、様々な液化ガス供給設備1からの受け入れが可能となる。クレーン14は、ホース13又はホース13先端に接続する低温液化ガス分配ユニット20を吊り下げるためのものであるので、吊り下げる重量は限られており、重量物を吊り下げる大型のものは必要ないが、ホース13を高く持ち上げる必要があることから、高所に届く高背のものが望ましく、伸縮式のクレーンでもよい。 Liquefied natural gas needs to be -162°C or less to keep the liquid phase under normal pressure, and the hose 13 uses a flexible hose. The liquefied gas supply facility 1 is very large, the outlet for discharging the low temperature liquefied gas from the storage tank is located at a high position above the sea level, and the height difference from the height of the barge tank 12 is large. A crane 14 provided in the low temperature liquefied gas filling facility 10 is used. By providing the crane 14 on the floating low-temperature liquefied gas filling facility 10 side as described above, it is not necessary to install a special crane 14 for connecting a transfer hose to the liquefied gas supply facility 1, and various liquefied gas supplies can be provided. Acceptance from the facility 1 is possible. Since the crane 14 is for suspending the hose 13 or the low temperature liquefied gas distribution unit 20 connected to the tip of the hose 13, the suspending weight is limited, and a large suspending heavy object is not necessary. Since it is necessary to lift the hose 13 high, it is preferable that the hose 13 reach a high place and that it is a telescopic crane.
 ホース13が海面に接触すると海水からの入熱により液化天然ガスの温度を上げてしまう恐れがあるため、クレーン14はホース13が海面に垂れ下がらないように所定の高さに吊り下げて保持する。
 さらに実施形態では、浮体式低温液化ガス充填設備10はホース13を垂れ下がりにくくするように、所定の高さでホース13を下から支持するホース支持体16を備える。
When the hose 13 comes into contact with the sea surface, the temperature of the liquefied natural gas may rise due to heat input from the sea water. Therefore, the crane 14 suspends and holds the hose 13 at a predetermined height so as not to hang down on the sea surface. ..
Further, in the embodiment, the floating type low temperature liquefied gas filling equipment 10 is provided with a hose support 16 that supports the hose 13 from below at a predetermined height so that the hose 13 is unlikely to hang down.
 バージタンク12は、主に受け入れ設備の無い小さな港などへの低温液化ガスの配送を行うために、容量としては必要以上に大きくしないことが望ましい。実施形態では例えば輸送トラック上のコンテナ4台分相当として直径3m、長さ20m程度の大きさを有する。しかし大きさはこれに限らず、低温液化ガスの配送を必要とする地域の地形や設備状況、受け入れる輸送トラックの台数や交通事情などを考慮して決定すればよく、上記より大きくても小さくても構わない。 It is desirable that the capacity of the barge tank 12 should not be made unnecessarily large in order to mainly deliver the low temperature liquefied gas to a small port without a receiving facility. In the embodiment, for example, it has a size of about 3 m in diameter and about 20 m in length corresponding to four containers on a transportation truck. However, the size is not limited to this, and may be determined in consideration of the topography and equipment conditions of the area where low-temperature liquefied gas needs to be delivered, the number of transport trucks to be accepted, traffic conditions, etc. I don't mind.
 図1(b)を参照すると、低温液化ガスを貯蔵した浮体式低温液化ガス充填設備10は、受け入れ先の港に向けて海上移動する。図1(b)では浮体本体11はバージ船であり、自身がエンジン等の航行のための動力を備えていないため、タグボート30に牽引ロープ31を介して連結され曳航されるように示すが、浮体本体11にエンジンを搭載して自力で航行するようにしてもよい。 Referring to FIG. 1( b ), the floating low-temperature liquefied gas filling facility 10 that stores the low-temperature liquefied gas moves by sea toward the receiving port. In FIG. 1(b), the floating body 11 is a barge ship, and since the floating body 11 itself does not have power for navigation such as an engine, it is shown as being connected to the tugboat 30 via a tow rope 31 and towed. The floating body 11 may be equipped with an engine so that it can sail by itself.
 図1(c)を参照すると、浮体式低温液化ガス充填設備10は輸送先の港に接岸すると、バージタンク12と地上に待機する輸送トラック40の上に配置されたコンテナ41とがホース13で接続され、充填手段15によりバージタンク12内の低温液化ガスがコンテナ41内に充填される。 Referring to FIG. 1( c ), when the floating type low temperature liquefied gas filling equipment 10 docks at a destination port, a barge tank 12 and a container 41 arranged on a transportation truck 40 waiting on the ground are connected by a hose 13. The low temperature liquefied gas in the barge tank 12 is filled in the container 41 by the filling means 15 connected.
 充填手段15は加圧蒸発器又はポンプであり、加圧蒸発器の場合は、バージタンク12内の低温液化ガスの一部を気化させてからバージタンク12内に戻し、バージタンク12内の圧力を上昇させることにより低温液化ガスを送り出す。ポンプの場合は直接低温液化ガスを増圧するので、バージタンク12からコンテナ41への流路の間に入れる必要があり、ホース13はポンプとコンテナ41との間を繋ぐように接続される。
 低温液化ガスを送出できれば、充填手段15は加圧蒸発器でもポンプでも構わないが、海上では波で揺れることもあり、安定して低温液化ガスを加圧できる加圧蒸発器の方が好ましい。
The filling means 15 is a pressure evaporator or a pump. In the case of the pressure evaporator, a part of the low-temperature liquefied gas in the barge tank 12 is vaporized and then returned to the barge tank 12, and the pressure in the barge tank 12 is reduced. The low temperature liquefied gas is sent out by raising. In the case of a pump, since the low temperature liquefied gas is directly boosted, it is necessary to put it in the flow path from the barge tank 12 to the container 41, and the hose 13 is connected so as to connect the pump and the container 41.
The filling means 15 may be a pressure evaporator or a pump as long as the low temperature liquefied gas can be delivered, but it is preferable to use a pressure evaporator that can stably pressurize the low temperature liquefied gas because it may sway due to waves at sea.
 受け入れ側のコンテナ41が1台のみの場合、ホース13はコンテナ41側の端部をそのままコンテナ41の注入口に直結するが、受け入れ側のコンテナ41が複数の場合、ホース13の端部には低温液化ガス分配ユニット20が接続される。低温液化ガス分配ユニット20は、上流側となるホース13につながる低温液化ガスの流入口は1つであるが、複数の排出口から排出されるように低温液化ガス分配ユニット20内で低温液化ガスの流路は複数に分岐する。 If there is only one container 41 on the receiving side, the hose 13 directly connects the end of the hose 13 to the inlet of the container 41. However, if there are multiple receiving containers 41, the end of the hose 13 is The low temperature liquefied gas distribution unit 20 is connected. The low-temperature liquefied gas distribution unit 20 has only one inflow port for the low-temperature liquefied gas connected to the hose 13 on the upstream side. The flow path of is branched into a plurality.
 また低温液化ガス分配ユニット20には、それぞれの排出口の出口の開閉を選択的に行う開閉弁を備え、開閉弁の先にはそれぞれの排出口と各コンテナ41とを接続する注入ホース22が接続される。そこで複数の排出口の内、同時充填を行うコンテナ41に接続された排出口の開閉弁を選択して開状態にすることにより、複数台のコンテナ41への充填を同時に行うことが可能となる。 Further, the low temperature liquefied gas distribution unit 20 is provided with an on-off valve that selectively opens and closes the outlet of each outlet, and an injection hose 22 that connects each outlet and each container 41 is provided at the tip of the on-off valve. Connected. Therefore, it is possible to fill a plurality of containers 41 at the same time by selecting the open/close valve of the discharge port connected to the container 41 that performs the simultaneous filling from the plurality of discharge ports and opening it. ..
 一般的な大きさの低温液化ガス用のコンテナ41への低温液化ガスの充填は1台当たり1時間前後を要する。例えば4台のコンテナ41に低温液化ガスを充填する場合、従来技術では一度に1台しか充填できないため4時間以上を要する。しかし低温液化ガス分配ユニット20を使用することによって、4台のコンテナ41でも同時充填で略1時間で充填を終了することが可能となる。 ◇ It takes about 1 hour per unit to fill the low-temperature liquefied gas container 41 of a general size with the low-temperature liquefied gas. For example, when the four containers 41 are filled with the low temperature liquefied gas, it takes four hours or more because the conventional technique can fill only one container at a time. However, by using the low temperature liquefied gas distribution unit 20, it is possible to complete the filling even in four containers 41 at the same time in approximately one hour.
 バージタンク12からコンテナ41への低温液化ガスの充填の際も、両者を接続するホース13はクレーン14により吊り下げられ、所定の高さに保持される。低温液化ガス分配ユニット20を接続する場合は、図1(c)に示すように低温液化ガス分配ユニット20をクレーン14で吊り下げることで、地上に注入ホース22が這回されることがなくなり、通行の邪魔にならないので作業性の低下を防ぐことができる。 When filling the low temperature liquefied gas from the barge tank 12 into the container 41, the hose 13 connecting the two is suspended by the crane 14 and held at a predetermined height. When the low temperature liquefied gas distribution unit 20 is connected, by suspending the low temperature liquefied gas distribution unit 20 by the crane 14 as shown in FIG. 1(c), the injection hose 22 will not be laid around on the ground, Since it does not hinder the passage of traffic, it is possible to prevent a reduction in workability.
 実施形態では、浮体式低温液化ガス充填設備10はホース13を垂れ下がりにくくするように、所定の高さでホース13を下から支持するホース支持体17を備える。図1(c)では浮体本体11の一方の縁にホース支持体16、ホース支持体16と反対側の縁にホース支持体17を有するように記載しているが、ホース13の接続方向をいずれか一方に固定する場合、ホース支持体(16、17)はいずれか一つに統一してもよく、この場合、統一したホース支持体はホース13を支持する支持高さが可変となるように構成するのが好ましい。 In the embodiment, the floating type low temperature liquefied gas filling facility 10 includes a hose support 17 that supports the hose 13 from below at a predetermined height so that the hose 13 does not easily hang down. Although the hose support 16 is provided at one edge of the floating body 11 and the hose support 17 is provided at the edge opposite to the hose support 16 in FIG. When fixed to either one, the hose supports (16, 17) may be unified to either one, and in this case, the unified hose support is such that the support height for supporting the hose 13 is variable. It is preferable to configure.
 図2は、本発明の実施形態による浮体式低温液化ガス充填設備による地上のコンテナに低温液化ガスを移送する方法を平面的に示す概略的図である。
 図2は、地上に停車中の4台の輸送トラック40に同時に低温液化ガスを充填する状態を示す。輸送トラック40は台車となるトレーラの上にコンテナ41を設置し、これを牽引車42で牽引するトレーラ式のものを例示している。
FIG. 2 is a schematic plan view showing a method of transferring low temperature liquefied gas to a container on the ground by a floating type low temperature liquefied gas filling facility according to an embodiment of the present invention.
FIG. 2 shows a state in which four transportation trucks 40 parked on the ground are simultaneously filled with the low temperature liquefied gas. The transport truck 40 exemplifies a trailer type in which a container 41 is installed on a trailer serving as a dolly, and the container 41 is towed by a tow vehicle 42.
 低温液化ガス分配ユニット20は、低温液化ガス分配器21と注入ホース22とを含む。低温液化ガス分配器21はホース13に接続される低温液化ガスの流入口は1つであるのに対し、排出口は4つであり、これにより略ホームベース型の筐体を有する。
 低温液化ガス分配器21はクレーン14により4台の輸送トラック40の後方で所定の高さに吊るされ、4つの排出口に接続された4本の注入ホース22がそれぞれのコンテナ41に連結される。
The low temperature liquefied gas distribution unit 20 includes a low temperature liquefied gas distributor 21 and an injection hose 22. The low-temperature liquefied gas distributor 21 has one inflow of the low-temperature liquefied gas connected to the hose 13, but has four outflow ports, thereby having a substantially home-based casing.
The cryogenic liquefied gas distributor 21 is hung at a predetermined height behind the four transportation trucks 40 by the crane 14, and the four injection hoses 22 connected to the four outlets are connected to the respective containers 41. ..
 実施形態において、例えば合計7台分のコンテナ41に低温液化ガスを充填する場合、1回目は図2に示すように4台のコンテナ41を接続し、同時充填を行う。2回目の充填では3台のコンテナ41を接続するが、図3を参照して後述するように、低温液化ガス分配ユニット20は排出口毎に開閉弁を備えるため、コンテナ41を接続しない残りの1つの排出口の開閉弁のみを閉じておくことで、選択的に3台のコンテナ41への同時充填が可能である。 In the embodiment, for example, when the low temperature liquefied gas is filled in the containers 41 for a total of 7 units, the first time, the 4 containers 41 are connected as shown in FIG. 2 and the simultaneous filling is performed. In the second filling, three containers 41 are connected, but as will be described later with reference to FIG. 3, since the low temperature liquefied gas distribution unit 20 has an opening/closing valve for each discharge port, the remaining container 41 not connected By closing only the open/close valve of one discharge port, it is possible to selectively fill three containers 41 simultaneously.
 コンテナ41に低温液化ガスを充填した輸送トラック40は、そのまま次の目的地まで直接陸送することもできるし、最寄りの駅でコンテナ41を貨車に移し替えて鉄道輸送にて輸送することや、最寄りの貨物港でコンテナ貨物船により海上輸送することもでき、受け入れ地の交通状況に合わせて様々な輸送形態を展開することが可能である。 The transportation truck 40 in which the container 41 is filled with the low temperature liquefied gas can be directly transported to the next destination as it is, or the container 41 can be transferred to a freight car at the nearest station and transported by rail transportation. It can also be transported by sea by container freighter at the freight port of, and it is possible to develop various modes of transportation according to the traffic conditions at the receiving place.
 図3は、本発明の実施形態による低温液化ガス分配ユニットの構造を概略的に示す図である。
 低温液化ガス分配ユニット20は、ホース13の一端に着脱可能に取り付けられるものであるため、低温液化ガス分配器21の低温液化ガスの流入口にはホース13との接続用の端部を備える。図3ではホース13の端部に備えるフランジに合わせ、流入口にもボルトナットで固定できるようにフランジを備える構成を示すが、着脱可能であればこの構成に限ることはなく、例えば、ねじによる接続の場合は、ホース13端部が備える雌ねじに合わせた雄ねじを備えるというように、ホース13の端部形状に合わせた接続用の端部を備える。
FIG. 3 is a diagram schematically showing the structure of a low temperature liquefied gas distribution unit according to an embodiment of the present invention.
Since the low temperature liquefied gas distribution unit 20 is detachably attached to one end of the hose 13, the low temperature liquefied gas distributor 21 has an end portion for connection with the hose 13 at the low temperature liquefied gas distributor 21 inlet port. Although FIG. 3 shows a configuration in which a flange is provided so as to be fixed to the flange provided at the end of the hose 13 so that the inlet can also be fixed with a bolt nut, the configuration is not limited to this as long as it is detachable, and for example, a In the case of connection, an end portion for connection that matches the shape of the end portion of the hose 13 is provided, such as a male screw that matches the female screw that the end portion of the hose 13 has.
 また低温液化ガス分配器21は複数に分岐する流路を備えた流路構造を有する。図3に示す低温液化ガス分配器21は分岐数が4の場合であり、4つの排出口を有する。4つの排出口にはそれぞれ開閉弁23を備えており、どの開閉弁23を開くかにより低温液化ガスを排出する排出口を選択することができる。 Also, the low temperature liquefied gas distributor 21 has a flow channel structure including a flow channel that branches into a plurality of parts. The low temperature liquefied gas distributor 21 shown in FIG. 3 has four branches and has four outlets. Each of the four outlets is provided with an on-off valve 23, and the outlet for ejecting the low temperature liquefied gas can be selected depending on which on-off valve 23 is opened.
 開閉弁23は手動でも電動でもよいが、電動の場合は浮体式低温液化ガス充填設備10が備える蓄電池等の給電手段から、ホース13に沿わせて配線する給電線を介して開閉弁23に電源を供給する。また電動の場合は無線又は有線で開閉弁23の開閉制御を行うように構成する。 The on-off valve 23 may be manually or electrically operated, but in the case of electrically operated, the on-off valve 23 is supplied with power from a power supply means such as a storage battery provided in the floating body low temperature liquefied gas filling facility 10 via a power supply line wired along the hose 13. To supply. Further, in the case of electric driving, the opening/closing control of the opening/closing valve 23 is configured by wireless or wired.
 一実施形態では、それぞれの開閉弁23の近傍又はそれぞれの開閉弁23との対応が分かる位置に、開閉弁23の開閉状態が目視で確認できるよう表示ランプを設ける。ランプの点灯か消灯かの区別により、或は表示するランプの色を変えることにより開状態か閉状態かを表示する。これによりコンテナ41に接続しない排出口の開閉弁23が誤って開いていても、容易に確認ができ、充填開始前に閉状態に修正することができる。 In one embodiment, a display lamp is provided near each on-off valve 23 or at a position where the correspondence with each on-off valve 23 can be seen so that the open/closed state of the on-off valve 23 can be visually confirmed. The open state or the closed state is displayed by distinguishing whether the lamp is on or off, or by changing the color of the displayed lamp. Accordingly, even if the opening/closing valve 23 of the discharge port which is not connected to the container 41 is accidentally opened, it can be easily confirmed and can be corrected to the closed state before the start of filling.
 それぞれの開閉弁23の下流側にはさらに流量検出手段24を備える。流路の形状や開閉弁23の選択の仕方によって、それぞれの排出口からの低温液化ガスの排出流量が異なることが生じ得る。流出量が異なると同時充填してもコンテナ41間で充填時間が異なるため作業効率の低下につながりかねない。そこで一実施形態では、流量検出手段24によりそれぞれの排出口からの低温液化ガスの排出流量を検出し、その結果に基づきそれぞれの排出口からの低温液化ガスの排出流量が等しくなるように個別に開閉弁23の弁開度を調整する。
 低温液化ガスの排出流量の調整は、開閉弁23とは異なる流量調整手段を設けてもよく、その場合は流量検出手段24により検出した排出流量に基づき流量調整手段により低温液化ガスの排出流量を調整する。
A flow rate detecting means 24 is further provided on the downstream side of each on-off valve 23. The discharge flow rate of the low temperature liquefied gas from each discharge port may differ depending on the shape of the flow path and the way of selecting the on-off valve 23. If the outflow amount is different, even if the filling is performed at the same time, the filling time differs between the containers 41, which may lead to a decrease in work efficiency. Therefore, in one embodiment, the discharge flow rate of the low temperature liquefied gas from each discharge port is detected by the flow rate detection means 24, and based on the result, the discharge flow rates of the low temperature liquefied gas from each discharge port are individually made equal. The opening degree of the on-off valve 23 is adjusted.
The discharge flow rate of the low temperature liquefied gas may be adjusted by providing a flow rate adjusting means different from the on-off valve 23. In that case, the discharge flow rate of the low temperature liquefied gas is adjusted by the flow rate adjusting means based on the discharge flow rate detected by the flow rate detecting means 24. adjust.
 注入ホース22はホース13と同様、フレキシブルホースである。注入ホース22はホース13のように頻繁に着脱を行う必要はないが、劣化した時の交換などもあるので、端部をボルトナットで固定できるようフランジ形状にするなどして低温液化ガス分配器21に着脱可能に取り付ける。 Like the hose 13, the injection hose 22 is a flexible hose. Unlike the hose 13, the injection hose 22 does not need to be frequently attached and detached, but it may be replaced when it deteriorates. Therefore, the low temperature liquefied gas distributor may be formed with a flange shape so that the end can be fixed with a bolt nut. 21 is detachably attached.
 低温液化ガス分配器21の上面にはフック25を備え、低温液化ガスの充填を行う際、図1(c)や図2のようにクレーン14によりフック25を吊り上げ、作業性の良い高さに保持することで充填作業を行い易い配置とすることができる。また、充填完了後にホース13を離脱する際、ホース内にLNGが残留しないよう、高低差を調整して完全にLNGがバージタンク12に移送されるようにする機能も有する。 A hook 25 is provided on the upper surface of the low-temperature liquefied gas distributor 21, and when the low-temperature liquefied gas is filled, the hook 25 is lifted by the crane 14 as shown in FIG. By holding it, the filling operation can be easily performed. It also has a function of adjusting the height difference so that LNG is completely transferred to the barge tank 12 so that LNG does not remain in the hose when the hose 13 is separated after the completion of filling.
 図3では4つの排出口を有する低温液化ガス分配ユニット20を例示したが、排出口の数は4つに限らない。4つより多くてもよいし少なくてもよい。また図3では排出口を横1列に配置した構造を例示したが、実施形態により複数の排出口を流出特性が均等となるように同心円状に等間隔に配置してもよい。このとき排出口の方向を流入口から斜め方向に設置する場合は、低温液化ガス分配器21はロート状の形状とし、排出口の方向を流入口から放射方向に配置する場合は、低温液化ガス分配器21は円盤状の形状とする。 In FIG. 3, the low temperature liquefied gas distribution unit 20 having four outlets is illustrated, but the number of outlets is not limited to four. It may be more or less than four. Further, in FIG. 3, the structure in which the discharge ports are arranged in one horizontal row is illustrated, but according to the embodiment, a plurality of discharge ports may be arranged concentrically and at equal intervals so that the discharge characteristics are uniform. At this time, when the outlet is installed obliquely from the inlet, the low temperature liquefied gas distributor 21 has a funnel shape, and when the outlet is arranged radially from the inlet, the low temperature liquefied gas is distributed. The distributor 21 has a disc shape.
 図4は、本発明の実施形態による低温液化ガス配送方法を説明するためのフローチャートである。
 図4を参照すると、浮体式低温液化ガス充填設備10への低温液化ガスの受け入れ段階として、液化ガス供給設備1から浮体式低温液化ガス充填設備10のバージタンク12にホース13を介して低温液化ガスを移送する(段階S400~段階S420)。
FIG. 4 is a flowchart illustrating a low temperature liquefied gas delivery method according to an exemplary embodiment of the present invention.
Referring to FIG. 4, as a receiving stage of the low temperature liquefied gas to the floating type low temperature liquefied gas filling equipment 10, the low temperature liquefaction from the liquefied gas supply equipment 1 to the barge tank 12 of the floating type low temperature liquefied gas filling equipment 10 via the hose 13. The gas is transferred (steps S400 to S420).
 まず段階S400にて、液化ガス供給設備1に緩衝体18を挟んで浮体式低温液化ガス充填設備10を係留する。実施形態では緩衝体18は液化ガス供給設備1に浮体式低温液化ガス充填設備10の係留位置に合わせて常設する。このため浮体式低温液化ガス充填設備10への低温液化ガスの受け入れ毎に緩衝体18を準備する必要がない。浮体式低温液化ガス充填設備10の係留は液化ガス供給設備1との間を係船策19で前後複数箇所を繋ぐことで着実に行うことができる。 First, in step S400, the floating low-temperature liquefied gas filling equipment 10 is moored with the buffer 18 sandwiched in the liquefied gas supply equipment 1. In the embodiment, the buffer body 18 is permanently installed in the liquefied gas supply equipment 1 according to the mooring position of the floating body type low temperature liquefied gas filling equipment 10. Therefore, it is not necessary to prepare the buffer body 18 every time the low temperature liquefied gas is received in the floating body low temperature liquefied gas filling facility 10. Mooring of the floating body type low temperature liquefied gas filling equipment 10 can be steadily performed by connecting the liquefied gas supply equipment 1 to the liquefied gas supply equipment 1 at a plurality of front and rear points by a mooring measure 19.
 次いで段階S405にて、液化ガス供給設備1と浮体式低温液化ガス充填設備10のホース13を接続する。このとき浮体式低温液化ガス充填設備10の備えるクレーン14を使ってホース13を持ち上げて接続するとともに低温液化ガス移送中もホース13を所定の高さに保持することにより、低温液化ガス払い出し用のクレーン14やホース13を持たない大型の船舶からでも直接に低温液化ガスを受け入れることが可能となる。 Next, in step S405, the liquefied gas supply equipment 1 and the hose 13 of the floating low-temperature liquefied gas filling equipment 10 are connected. At this time, the hose 13 is lifted and connected by using the crane 14 provided in the floating type low temperature liquefied gas filling facility 10 and the hose 13 is held at a predetermined height during the transfer of the low temperature liquefied gas. It is possible to directly receive the low temperature liquefied gas from a large ship that does not have the crane 14 or the hose 13.
 段階S410にて液化ガス供給設備1から浮体式低温液化ガス充填設備10のバージタンク12へ低温液化ガスの移送を開始する。段階S415にて必要量の低温液化ガスの移送を行い低温液化ガスの移送を完了すると、段階S420にて液化ガス供給設備1から浮体式低温液化ガス充填設備10のホース13を切り離す。切り離したホース13はクレーン14を使って浮体式低温液化ガス充填設備10に回収し、最後に係船策19を外して低温液化ガスの受け入れ段階を終了する。 At step S410, transfer of the low temperature liquefied gas from the liquefied gas supply equipment 1 to the barge tank 12 of the floating type low temperature liquefied gas filling equipment 10 is started. When the necessary amount of the low temperature liquefied gas is transferred and the transfer of the low temperature liquefied gas is completed in step S415, the hose 13 of the floating low temperature liquefied gas filling equipment 10 is disconnected from the liquefied gas supply equipment 1 in step S420. The separated hose 13 is recovered by the floating type low temperature liquefied gas filling equipment 10 by using the crane 14, and finally the mooring measure 19 is removed to end the low temperature liquefied gas receiving stage.
 次に輸送段階として浮体式低温液化ガス充填設備10を低温液化ガスの引き渡し場所である港まで移動させる(段階S425、段階S430)。
 段階S425で浮体式低温液化ガス充填設備10を配送先である港湾内の輸送トラック40の待機位置に向かって移動する。実施形態では浮体式低温液化ガス充填設備10は、自力航行のための動力手段を持たず、タグボート30により曳航されて移動する。そのため牽引ロープ31を掛ける牽引ロープフックを前後に備える。これにより複数の浮体式低温液化ガス充填設備10を牽引ロープ31で縦1列に繋ぎ、先頭をタグボート30で牽引することで、一度に纏めて複数の浮体式低温液化ガス充填設備10を移動させることが可能となる。
Next, as a transportation step, the floating low-temperature liquefied gas filling equipment 10 is moved to a port which is a delivery place of the low-temperature liquefied gas (steps S425 and S430).
In step S425, the floating type low temperature liquefied gas filling equipment 10 is moved toward the standby position of the transportation truck 40 in the port which is the delivery destination. In the embodiment, the floating type low temperature liquefied gas filling facility 10 does not have a power means for self-propelled navigation, and is towed by the tugboat 30 to move. Therefore, a tow rope hook for hanging the tow rope 31 is provided at the front and rear. Thereby, a plurality of floating type low temperature liquefied gas filling equipments 10 are connected in a vertical line by the tow rope 31 and the head is pulled by the tugboat 30 to move the plurality of floating type low temperature liquefied gas filling equipments 10 at once. It becomes possible.
 また他の実施形態では、浮体式低温液化ガス充填設備10は、自力航行のための動力手段を備え、配送先にはタグボート30を使用することなく自力で移動する。
 タグボート30により曳航されて移動する場合も、自力で移送する場合も配送先の港に到着すると浮体式低温液化ガス充填設備10は港湾内の輸送トラック40の待機位置に接岸する(段階S430)。
In another embodiment, the floating-type low temperature liquefied gas filling facility 10 is equipped with power means for self-navigation, and moves by itself without using the tugboat 30 at the delivery destination.
When the floating low-temperature liquefied gas filling equipment 10 arrives at the destination port, whether it is towed by the tugboat 30 or moved by itself, the floating low-temperature liquefied gas filling facility 10 docks at the standby position of the transportation truck 40 in the port (step S430).
 この後充填手段15によりバージタンク12からホース13を介して地上の輸送トラック40上に配置されたコンテナ41に直接低温液化ガスを充填する充填段階(段階S435~段階S470)に移行する。
 始めに段階S435にて複数のコンテナ41に同時に充填するか否かを判断し、同時に充填するコンテナ41が複数の場合、段階S440にてホース13の一端に低温液化ガス分配ユニット20を接続する。
After this, the charging means 15 shifts from the barge tank 12 to the container 41 arranged on the ground transportation truck 40 via the hose 13 directly to the charging step (steps S435 to S470) for charging the low temperature liquefied gas.
First, in step S435, it is determined whether or not a plurality of containers 41 are to be simultaneously filled. If there are a plurality of containers 41 to be simultaneously filled, the low temperature liquefied gas distribution unit 20 is connected to one end of the hose 13 in step S440.
 次いで段階S445にて、低温液化ガスを同時充填するコンテナ41の数に合わせ、低温液化ガス分配ユニット20の複数の注入ホース22の内、必要数を港湾内トラック上のコンテナ41に接続する。低温液化ガス分配ユニット20は複数の排出口を有するが、排出口毎に開閉弁23で開閉を切り替えられるので、同時充填するコンテナ41の数が、低温液化ガス分配ユニット20の排出口の数より少なくても、使用しない排出口の開閉弁23を閉じておくことができ、接続したコンテナ41の数だけの同時充填が可能となる。
 段階S455にて、充填を行うコンテナ41に合わせ、低温液化ガス分配ユニット20の開閉弁23を開口する。
Then, in step S445, a required number of the plurality of injection hoses 22 of the low temperature liquefied gas distribution unit 20 are connected to the containers 41 on the truck in the harbor according to the number of the containers 41 simultaneously filled with the low temperature liquefied gas. The low-temperature liquefied gas distribution unit 20 has a plurality of outlets, but since the opening/closing valve 23 can switch the opening and closing for each of the outlets, the number of containers 41 to be simultaneously filled is smaller than the number of outlets of the low-temperature liquefied gas distribution unit 20. At least, the opening/closing valve 23 of the unused discharge port can be closed, and simultaneous filling can be performed by the number of connected containers 41.
In step S455, the opening/closing valve 23 of the low temperature liquefied gas distribution unit 20 is opened according to the container 41 to be filled.
 一実施形態では注入ホース22のコンテナ41への接続側の端部に、コンテナ41との接続を検出するセンサ又はコンテナ41との接続が行われると作動する押し込みスイッチなどのスイッチを設け、コンテナ41への接続が行われないと当該注入ホース22が接続される排出口の開閉弁23の開動作が行われないように構成する。これによりコンテナ41に接続していない注入ホース22に誤って低温液化ガスを排出するのを防止することが可能である。 In one embodiment, a sensor such as a sensor for detecting the connection with the container 41 or a switch such as a push switch that is activated when the connection with the container 41 is provided at the end portion of the injection hose 22 that is connected to the container 41. If the connection is not made, the opening/closing valve 23 of the discharge port to which the injection hose 22 is connected is not opened. This makes it possible to prevent the low temperature liquefied gas from being accidentally discharged to the injection hose 22 which is not connected to the container 41.
 以上の充填の準備が終了すると、段階S460にて浮体式低温液化ガス充填設備10の充填手段15を作動させ、コンテナ41に低温液化ガスを充填する。
 輸送トラック40の駐車スペースが狭く同時充填可能なコンテナ41の数が限られる場合や、低温液化ガスの需要量が多く、低温液化ガス分配ユニット20による1回の同時充填でもまだ需要量に満たない場合など、複数回の充填が必要な場合は1回目の充填が終了した時点で一度開閉弁23を閉じ、輸送トラック40を入れ替えて新たなコンテナ41に接続した後、段階S435~段階S460の充填作業を繰り返す。
When the above-mentioned preparation for filling is completed, in step S460, the filling means 15 of the floating type low temperature liquefied gas filling equipment 10 is operated to fill the container 41 with the low temperature liquefied gas.
In the case where the parking space of the transport truck 40 is narrow and the number of containers 41 that can be simultaneously filled is limited, or the demand for low-temperature liquefied gas is large, even one simultaneous filling by the low-temperature liquefied gas distribution unit 20 is still less than the demand. When it is necessary to fill a plurality of times, the on-off valve 23 is once closed at the time when the first filling is completed, the transportation truck 40 is replaced and the new container 41 is connected, and then the filling in steps S435 to S460 is performed. Repeat the work.
 さらに、流量検出手段24を使用して低温液化ガスの低温液化ガスの排出流量を調整する場合は、段階S460で低温液化ガスの充填を開始した段階で、流量検出手段24によりそれぞれの排出口を流れる低温液化ガスの排出流量を検出し、その結果に基づき開閉弁23若しくは開閉弁23とは別に個別に設けられる流量調整手段により低温液化ガスの排出流量を個別に調整する。これは浮体式低温液化ガス充填設備10に開閉弁23または流量調整手段を遠隔に制御する制御装置を設け、流量検出手段24からの出力を有線又は無線で制御装置に入力し、制御装置からそれぞれの開閉弁23または流量調整手段に入力値に基づく制御信号を有線又は無線で出力することで実現される。 Further, when the discharge flow rate of the low temperature liquefied gas of the low temperature liquefied gas is adjusted using the flow rate detecting means 24, at the stage where the filling of the low temperature liquefied gas is started in step S460, the flow rate detecting means 24 sets the respective discharge ports. The discharge flow rate of the low-temperature liquefied gas that flows is detected, and based on the result, the discharge flow rate of the low-temperature liquefied gas is individually adjusted by the on-off valve 23 or a flow rate adjusting means that is provided separately from the on-off valve 23. This is provided with a control device for remotely controlling the on-off valve 23 or the flow rate adjusting means in the floating type low temperature liquefied gas filling equipment 10, and the output from the flow rate detecting means 24 is input to the control device by wire or wirelessly, and the control device respectively. It is realized by outputting a control signal based on the input value to the on-off valve 23 or the flow rate adjusting means in a wired or wireless manner.
 段階S435に戻って充填するコンテナ41が単数の場合、低温液化ガスの分配は必要なくなるため、段階S450にてホース13には低温液化ガス分配ユニット20を接続せずに直接コンテナ41に接続した後、段階S460に移行して浮体式低温液化ガス充填設備10の充填手段15を作動させ、コンテナ41に低温液化ガスを充填する。 When the number of the containers 41 to be filled in the step S435 is one, the low-temperature liquefied gas is not required to be distributed. Therefore, in the step S450, the low-temperature liquefied gas distribution unit 20 is not connected to the hose 13 and directly connected to the container 41. Then, in step S460, the filling means 15 of the floating type low temperature liquefied gas filling equipment 10 is activated to fill the container 41 with the low temperature liquefied gas.
 一度バージタンク12に充填した低温液化ガスを、複数の目的地に連続して配送する場合などに、先の配送地でホース13の先端に低温液化ガス分配ユニット20を接続して充填を行うと、次の配送地では予めホース13の先端に低温液化ガス分配ユニット20が接続された状態から作業が始まることが起こり得る。このような状況で単体のコンテナ41に充填する場合は、低温液化ガス分配ユニット20を外してホース13を直接コンテナ41に接続してもよいし、低温液化ガス分配ユニット20を接続したままで1本の注入ホース22を選択的に接続し、接続した注入ホース22につながる開閉弁23を開いて低温液化ガスの充填を行ってもよい。 When the low-temperature liquefied gas once filled in the barge tank 12 is continuously delivered to a plurality of destinations, when the low-temperature liquefied gas distribution unit 20 is connected to the tip of the hose 13 at the previous delivery point to perform the filling. At the next delivery place, the work may start in a state where the low temperature liquefied gas distribution unit 20 is connected to the tip of the hose 13 in advance. When the single container 41 is filled in such a situation, the low temperature liquefied gas distribution unit 20 may be removed and the hose 13 may be directly connected to the container 41, or the low temperature liquefied gas distribution unit 20 may be left connected. The injection hose 22 of the book may be selectively connected, and the on-off valve 23 connected to the connected injection hose 22 may be opened to fill the low temperature liquefied gas.
 また、低温液化ガスの配送の状況により、複数のコンテナ41に同時充填して配送することが多い場合、ホース13は、液化ガス供給設備1からの低温液化ガスの受け入れとコンテナ41への充填とで共用とせず、受け入れ専用のホース13-1と、低温液化ガス分配ユニット20を接続したままの充填専用のホース13-2との別構成としてもよい。この場合、図4の段階S435、段階S440、段階S450の作業は不要となる。 When the low-temperature liquefied gas is often packed and delivered in a plurality of containers 41 at the same time, the hose 13 receives the low-temperature liquefied gas from the liquefied-gas supply facility 1 and fills the container 41. The hose 13-1 dedicated to reception and the hose 13-2 dedicated to filling with the low temperature liquefied gas distribution unit 20 still connected may be configured differently. In this case, the work of steps S435, S440, and S450 of FIG. 4 is unnecessary.
 段階S465で充填が必要なコンテナ41への低温液化ガスの充填が終了すると、段階S470でコンテナ41に接続するホース13又は注入ホース22の接続を解除して、浮体式低温液化ガス充填設備10に収納する。その後は次の配送先に向かって充填を続けるか、次の配送に備えて液化ガス供給設備1に戻り、上述した低温液化ガスの受け入れ段階からの作業を繰り返す。 When the filling of the low temperature liquefied gas into the container 41 that needs to be filled is completed in step S465, the connection of the hose 13 or the injection hose 22 connected to the container 41 is released in step S470, and the floating type low temperature liquefied gas filling equipment 10 is installed. Store. After that, the filling is continued toward the next delivery destination, or the process returns to the liquefied gas supply facility 1 in preparation for the next delivery, and the operation from the receiving stage of the low temperature liquefied gas described above is repeated.
 尚、空のコンテナ41に低温液化ガスを充填すると、通常コンテナ41内の温度が低温液化ガスの温度まで冷えていないため、コンテナ41内部のメタンガスなどの残留ガスに加え、低温液化ガスの一部がガス化し、充填の初期段階で一時的にコンテナ41内の圧力が上昇する。低温液化ガスの充填が進み、コンテナ41内部の温度が低下してくると、それに伴いコンテナ41内の圧力も低下してくる。 In addition, when the empty container 41 is filled with the low temperature liquefied gas, the temperature inside the container 41 is not normally cooled to the temperature of the low temperature liquefied gas. Therefore, in addition to the residual gas such as methane gas inside the container 41, a part of the low temperature liquefied gas is included. Is gasified, and the pressure in the container 41 temporarily rises in the initial stage of filling. As the low temperature liquefied gas is filled and the temperature inside the container 41 decreases, the pressure inside the container 41 also decreases accordingly.
 低温液化ガスの充填に伴い、コンテナ41内のガスを供給側であるバージタンク12に戻すことでコンテナ41内の圧力上昇の影響を抑える充填方法も取り得るが、この方法ではガス化しやすい成分を回収するために、最終的に充填した低温液化ガスの成分構成が変わってしまうことが起こり得る。 With the filling of the low-temperature liquefied gas, the gas in the container 41 may be returned to the barge tank 12 on the supply side to suppress the influence of the pressure increase in the container 41. It is possible that the composition of the components of the low temperature liquefied gas finally filled for recovery may change.
 一方、コンテナ41内のガスを冷却し、低温液化ガスに溶かし込めればコンテナ41内の圧力上昇を抑制することも可能となる。この方法によればガス成分をバージタンク12に回収することが無いので、充填する低温液化ガスの成分構成が変化することもない。また、ガス専用の戻りホースを設備する必要がなくなる。 On the other hand, if the gas in the container 41 is cooled and dissolved in the low temperature liquefied gas, it is possible to suppress the pressure rise in the container 41. According to this method, since the gas component is not collected in the barge tank 12, the composition of the low-temperature liquefied gas to be filled does not change. Also, it is not necessary to install a return hose exclusively for gas.
 以上、本発明の実施形態について図面を参照しながら詳細に説明したが、本発明は、上述の実施形態に限定されるものではなく、本発明の技術的範囲から逸脱しない範囲内で多様に変更することが可能である。 The embodiments of the present invention have been described above in detail with reference to the drawings. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the technical scope of the present invention. It is possible to
 1  液化ガス供給設備
 10  浮体式低温液化ガス充填設備
 11  浮体本体
 12  バージタンク
 13  ホース
 14  クレーン
 15  充填手段
 16、17  ホース支持体
 18  緩衝体
 19  係船策
 20  低温液化ガス分配ユニット
 21  低温液化ガス分配器
 22  注入ホース
 23  開閉弁
 24  流量検出手段
 25  フック
 30  タグボート
 31  牽引ロープ
 40  輸送トラック
 41  コンテナ
 42  牽引車
1 Liquefied gas supply equipment 10 Floating body type low temperature liquefied gas filling equipment 11 Floating body main body 12 Barge tank 13 Hose 14 Crane 15 Filling means 16, 17 Hose support 18 Buffer body 19 Mooring policy 20 Low temperature liquefied gas distribution unit 21 Low temperature liquefied gas distributor 22 injection hose 23 open/close valve 24 flow rate detection means 25 hook 30 tugboat 31 tow rope 40 transport truck 41 container 42 tow vehicle

Claims (7)

  1.  海上から陸上に低温液化ガスを配送する浮体式低温液化ガス充填設備であって、
     低温液化ガスを一時的に充填して貯蔵するバージタンクと、
     液化ガス供給設備から前記バージタンクに低温液化ガスを移送し、前記バージタンクから地上の輸送トラック上に配置されたコンテナに低温液化ガスを移送するためのホースと、
     前記ホースの一端に着脱可能に取り付けられる低温液化ガス分配ユニットと、
     低温液化ガス移送中に前記ホースを所定の高さに保持するクレーンと、
     低温液化ガスを前記コンテナに充填する充填手段と、を有し、
     前記低温液化ガス分配ユニットは前記ホースの一端に接続される低温液化ガスの流入口と、低温液化ガスを複数の前記コンテナに同時に排出する複数の排出口と、それぞれの排出口の開閉を選択的に行う開閉弁と、一端が前記排出口に接続され、他端が前記コンテナの注入口に接続される複数の注入ホースと、前記クレーンによって吊り上げるためのフックと、を備え、
     前記低温液化ガス分配ユニットは同時に複数のコンテナに充填する場合に前記充填手段に接続された前記ホースの一端に取り付けられ、前記クレーンによって所定の高さに吊り上げられて使用され、
     前記低温液化ガス分配ユニットはロート状又は円盤状の形状であり、前記複数の排出口は流出特性が均等となるよう等間隔に配置され、前記開閉弁の弁開度は、それぞれの排出口からの低温液化ガスの排出流量が等しくなるように調整され、
     前記注入ホースはコンテナへの接続側の端部にコンテナとの接続を検出するセンサ又はコンテナとの接続が行われると作動するスイッチを備え、
     前記注入ホースが接続される排出口の開閉弁は、前記注入ホースのコンテナへの接続が行われないと開動作が行われないように構成されることを特徴とする浮体式低温液化ガス充填設備。
    A floating body low temperature liquefied gas filling facility for delivering low temperature liquefied gas from the sea to land,
    A barge tank that temporarily stores and stores low-temperature liquefied gas,
    A low-temperature liquefied gas is transferred from the liquefied gas supply facility to the barge tank, and a hose for transferring the low-temperature liquefied gas from the barge tank to a container arranged on a ground transportation truck,
    A low temperature liquefied gas distribution unit detachably attached to one end of the hose,
    A crane that holds the hose at a predetermined height during low-temperature liquefied gas transfer,
    Filling means for filling the low-temperature liquefied gas into the container,
    The low-temperature liquefied gas distribution unit has an inlet for the low-temperature liquefied gas connected to one end of the hose, a plurality of outlets for simultaneously discharging the low-temperature liquefied gas to the plurality of containers, and selectively opening and closing the respective outlets. And a plurality of injection hoses, one end of which is connected to the discharge port and the other end of which is connected to the injection port of the container, and a hook for lifting by the crane,
    The low temperature liquefied gas distribution unit is attached to one end of the hose connected to the filling means when filling a plurality of containers at the same time, and is used by being lifted to a predetermined height by the crane,
    The low-temperature liquefied gas distribution unit has a funnel-shaped or disc-shaped shape, the plurality of discharge ports are arranged at equal intervals so that the outflow characteristics are even, and the valve opening degree of the on-off valve is different from each discharge port. Is adjusted so that the low-temperature liquefied gas discharge flow rate of
    The injection hose is provided with a sensor for detecting the connection with the container at the end on the connection side to the container or a switch that is activated when the connection with the container is made,
    The floating low-temperature liquefied gas filling facility, wherein the opening/closing valve of the discharge port to which the injection hose is connected is configured not to be opened unless the injection hose is connected to the container. ..
  2.  前記低温液化ガス分配ユニットはそれぞれの排出口から排出される低温液化ガスの流量を個別に検出する流量検出手段を備え、検出した低温液化ガスの流量に基づき前記開閉弁若しくは前記開閉弁とは別に個別に設けられる流量調整手段により低温液化ガスの排出流量を個別に調整可能であることを特徴とする請求項1に記載の浮体式低温液化ガス充填設備。 The low-temperature liquefied gas distribution unit includes flow rate detection means for individually detecting the flow rate of the low-temperature liquefied gas discharged from each outlet, and based on the detected flow rate of the low-temperature liquefied gas, the on-off valve or separately from the on-off valve. The floating body type low temperature liquefied gas filling equipment according to claim 1, wherein the discharge flow rate of the low temperature liquefied gas can be adjusted individually by individually provided flow rate adjusting means.
  3.  低温液化ガスは前記充填手段により前記バージタンクから前記ホース、前記低温液化ガス分配ユニットを介して一又は複数の前記コンテナに直接移送されることを特徴とする請求項2に記載の浮体式低温液化ガス充填設備。 Cryogenic liquefied gas according to claim 2, wherein the cryogenic liquefied gas is directly transferred from the barge tank by the filling means to the one or more containers via the hose and the cryogenic liquefied gas distribution unit. Gas filling facility.
  4.  前記低温液化ガスは液化天然ガス(LNG)であり、前記液化ガス供給設備は液化天然ガス船または浮体式液化天然ガス貯蔵再ガス化設備(FSRU)であり、前記充填手段は加圧蒸発器又はポンプであることを特徴とする請求項1乃至3のいずれか1項に記載の浮体式低温液化ガス充填設備。 The low temperature liquefied gas is liquefied natural gas (LNG), the liquefied gas supply equipment is a liquefied natural gas ship or a floating liquefied natural gas storage regasification equipment (FSRU), and the filling means is a pressure evaporator or It is a pump, The floating type low temperature liquefied gas filling equipment of any one of Claim 1 thru|or 3 characterized by the above-mentioned.
  5.  請求項1に記載の浮体式低温液化ガス充填設備を使用した低温液化ガス配送方法であって、
     液化ガス供給設備に浮体式低温液化ガス充填設備を係留した後、液化ガス供給設備から浮体式低温液化ガス充填設備のバージタンクにホースを介して低温液化ガスを移送する受け入れ段階と、
     浮体式低温液化ガス充填設備を低温液化ガスの引き渡し場所まで移動させる輸送段階と、
     充填手段により前記バージタンクから前記ホースを介して地上の輸送トラック上に配置されたコンテナに直接低温液化ガスを充填する充填段階と、を有し、
     同時に複数のコンテナに低温液化ガスを充填する場合、前記充填段階の前に前記ホースの排出側の一端に複数の排出口を備える低温液化ガス分配ユニットを接続する接続段階をさらに有することを特徴とする低温液化ガス配送方法。
    A low-temperature liquefied gas delivery method using the floating type low-temperature liquefied gas filling facility according to claim 1.
    After mooring the floating low-temperature liquefied gas filling equipment to the liquefied gas supply equipment, a receiving step of transferring the low-temperature liquefied gas from the liquefied gas supply equipment to the barge tank of the floating low-temperature liquefied gas filling equipment via a hose,
    A transportation stage in which the floating low-temperature liquefied gas filling facility is moved to the delivery location of the low-temperature liquefied gas;
    A filling step of directly filling the container arranged on the ground transportation truck from the barge tank via the hose by the filling means with the low temperature liquefied gas,
    When simultaneously filling a plurality of containers with a low temperature liquefied gas, the method further comprises a connection step of connecting a low temperature liquefied gas distribution unit having a plurality of discharge ports at one end of the hose on the discharge side before the filling step. Low-temperature liquefied gas delivery method.
  6.  前記低温液化ガス分配ユニットは前記ホースの一端に接続される低温液化ガスの流入口と、低温液化ガスを複数の前記コンテナに同時に排出する複数の排出口と、それぞれの排出口の開閉を選択的に行う開閉弁と、それぞれの排出口から排出される低温液化ガスの流量を個別に検出する流量検出手段とを備え、
     前記充填段階は同時に充填する前記コンテナの数に合わせて必要な排出口の開閉弁を選択的に開口する選択段階と、
     前記流量検出手段により検出された低温液化ガスの流量に基づき前記開閉弁若しくは前記開閉弁とは別に個別に設けられる流量調整手段により低温液化ガスの排出流量を個別に調整する調整段階と、を含むことを特徴とする請求項5に記載の低温液化ガス配送方法。
    The low-temperature liquefied gas distribution unit has an inlet for the low-temperature liquefied gas connected to one end of the hose, a plurality of outlets for simultaneously discharging the low-temperature liquefied gas to the plurality of containers, and selectively opening and closing the respective outlets. And a flow rate detection means for individually detecting the flow rate of the low temperature liquefied gas discharged from each discharge port,
    In the filling step, a selection step of selectively opening an opening/closing valve of a necessary outlet according to the number of the containers to be simultaneously filled,
    An adjusting step of individually adjusting the discharge flow rate of the low temperature liquefied gas by the opening/closing valve or a flow rate adjusting means provided separately from the opening/closing valve based on the flow rate of the low temperature liquefied gas detected by the flow rate detecting means. The low-temperature liquefied gas delivery method according to claim 5, characterized in that.
  7.  前記低温液化ガスは液化天然ガス(LNG)であり、前記液化ガス供給設備は液化天然ガス船または浮体式液化天然ガス貯蔵再ガス化設備(FSRU)であり、前記充填手段は加圧蒸発器又はポンプであることを特徴とする請求項5または6に記載の低温液化ガス配送方法。 The low temperature liquefied gas is liquefied natural gas (LNG), the liquefied gas supply equipment is a liquefied natural gas ship or a floating liquefied natural gas storage regasification equipment (FSRU), and the filling means is a pressure evaporator or The low-temperature liquefied gas delivery method according to claim 5, which is a pump.
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