KR101205351B1 - Lng bunkering vessel - Google Patents

Abstract

A fuel supply vessel is disclosed.
Fuel supply vessel according to an embodiment of the present invention is to be piped to the end of the storage tank for storing the liquefied fuel gas through the manifold, the loading line disposed outside the storage tank, the discharge line connected to the loading line Installed inside the storage tank, the main pump for supplying the liquefied fuel gas to the fuel tank of the liquefied fuel gas propulsion vessel and installed in the storage tank so as to be piped to the end of the first spray pump line connected to the loading line. And a spray pump for supplying a part of the liquefied fuel gas to the spray device of the fuel tank, a vent line connected between the manifold and the compression processing unit, and a heating line connecting the vent line and the loading line, It may include a heating device for heating the liquefied natural gas remaining in the loading line or manifold line.

Description

Fuel supply vessel {LNG BUNKERING VESSEL}

The present invention relates to a fuel supply vessel for refueling liquefied fuel gas at sea to a vessel using liquefied fuel gas as fuel.

In recent years, in order to minimize the emission of environmental pollutants under the influence of environmental regulations, ships that use liquefied fuel gas as fuel are also in the spotlight in the operation of ships.

In addition, propulsion engines using petroleum as a fuel were mainly used for commercial ships or passenger ships such as container carriers, but recently, propulsion engines using liquefied fuel gas, which is much cheaper than petroleum, are used as fuels due to rising oil prices. Ships are on the rise.

Ships equipped with liquefied fuel gas propulsion engines are operated after filling liquefied fuel gas into a liquefied fuel gas fuel tank for navigation, but there are not many ports equipped with liquefied fuel gas storage facilities or oil supply facilities.

In addition, the current liquefied fuel gas storage facility is to move the liquefied fuel gas stored in the liquefied fuel gas carrier to the ground, and is far from the port for anchoring of merchant ships, such as container ships for safety reasons.

Therefore, the merchant ship should go to the liquefied fuel gas storage facility far from the port and receive liquefied fuel gas for liquefied fuel gas refueling.

Since ships need a lot of time and effort to dock once, simply moving a ship away from the port for refueling liquefied fuel gas is an unproductive task that requires a lot of time and effort, but at an additional cost. .

In addition, filling the liquefied fuel gas with fuel by the conventional transfer method is very demanding in the method, and therefore, the answer is found in various directions.

One of them is a fueling vessel, which may supply or supply fuel at sea.

The liquefied fuel gas tanker according to the prior art is connected to the liquefied fuel gas storage tank, the fuel gas storage tank, as disclosed in the Republic of Korea Patent Application No. 10-2009-0098986 to supply fuel to the liquefied fuel gas propulsion vessel And a fuel supply pipe and an evaporation gas recovery pipe for recovering the evaporated gas generated from the liquefied fuel gas fuel tank of the liquefied fuel gas propulsion vessel.

Here, when liquefied fuel gas is supplied from the liquefied fuel gas supply line to the liquefied fuel gas fuel tank of the liquefied fuel gas propulsion vessel, the liquefied fuel gas fuel tank of the liquefied fuel gas propulsion vessel is provided with the BOG in the existing tank. The pressure increases due to the pressure caused by the pressure and the pressure of the liquefied fuel gas supplied from the liquefied fuel gas supply line.

In order to prevent deformation and destruction of the liquefied fuel gas fuel tank of the liquefied fuel gas propulsion vessel due to this elevated pressure, the boil-off gas in the tank is simply recovered through the boil-off gas recovery pipe to the treatment facility of the liquefied fuel gas supply line without any treatment. do.

However, the liquefied fuel gas tanker according to the prior art generates the amount of boil-off gas generated by the liquefied fuel gas propulsion vessel compared to the amount of boil-off gas to be used in a power production apparatus such as a propulsion engine, a generator, a boiler, a turbine, etc. of the liquefied fuel gas tanker. There is a drawback in that it is not possible to process the boil-off gas in response to the excessively generated or insufficiently generated situation.

In addition, the liquefied fuel gas tanker according to the prior art is due to the absence of means for processing the liquefied natural gas remaining in the loading line or manifold line, which is the fuel supply pipe after completion of the filling or recharging operation with the liquefied fuel gas propulsion vessel. , Waste of the remaining liquefied natural gas is generated, there is a disadvantage that can be released into the air.

In addition, the liquefied fuel gas tanker according to the prior art is configured to simply recover only the evaporated gas generated in the liquefied fuel gas propulsion vessel, the evaporated gas generated in the fuel tank of the liquefied fuel gas propulsion vessel during the transfer operation of the liquefied fuel gas There is a disadvantage that can not control the amount of generated in the liquefied fuel gas supply line.

An embodiment of the present invention is devised to solve the above problems, while filling or recharging the liquefied fuel gas to the liquefied fuel gas propulsion vessel while controlling the amount of evaporated gas generated in the liquefied fuel gas propulsion vessel with a spray device and a heating device To provide a fuel supply vessel that can be made.

According to an aspect of the present invention, the storage tank for storing the liquefied fuel gas through the manifold, the loading line disposed outside the storage tank, and the storage tank to be piped to the end of the discharge line connected to the loading line It is installed inside and installed inside the storage tank so as to be piped to the end of the main pump for supplying the liquefied fuel gas to the fuel tank of the liquefied fuel gas propulsion vessel and the first spray pump line connected to the loading line, liquefied A spray pump for supplying a part of fuel gas to a spray device of the fuel tank, a vent line connected between the manifold and the compression processing unit, and a heating line connecting the vent line and the loading line, the loading line Or a fuel supply vessel including a heating device for heating liquefied natural gas remaining in the manifold line. .

The apparatus may further include a power production apparatus connected to a second spray pump line branched from the first spray pump line or a compression discharge line extending from the compression processing unit, wherein the power production apparatus is a dual fuel diesel engine. Or one or more of a propulsion device including a ME-GI, a gas turbine device, a boiler, a turbine, and a generator.

The apparatus may further include a supply unit coupled between the manifold and the storage tank and receiving the liquefied fuel gas from the outside of the hull, wherein the supply unit receives the liquefied fuel gas from the liquefied fuel gas terminal and stores it in the storage tank. It may include a supply line, a first spray line branched from the supply line, and the spray device of the storage tank piped to the end of the first spray line, installed on the inner upper portion of the storage tank.

In addition, the fuel supply vessel may further include a manifold line of a flexible tube or loading arm type that is fastened between the manifold and another manifold provided in the liquefied fuel gas propulsion vessel.

In addition, the manifold line may include a fluid line and a boil off gas line.

In addition, the compression processing unit, a compression inlet line receiving the boil-off gas from the vent line, a compressor receiving the boil-off gas from the compression inlet line, a compression outflow line receiving the compressed boil-off gas from the compressor, and the compressed outflow A distribution line branched into at least one distribution line, at least one compression tank connected to an end of the distribution line and storing the compressed boil-off gas, and connected to the vent line from one of the distribution lines to the compressed boil-off gas It may include a discharge treatment line for supplying.

In addition, the fuel supply vessel may be built in the form of a fuel supply line or a floating offshore structure.

According to an embodiment of the present invention, the amount of boil-off gas generated in a storage tank of a fuel supply vessel and a fuel tank of a liquefied fuel gas propulsion vessel is used in a power production apparatus (eg, a propulsion engine, a generator, a boiler, a turbine, etc.) of a fuel supply vessel. By treating the boil-off gas with a heating device according to the situation that is excessively or insufficiently compared to the boil-off gas demand, there is an advantage to optimize the use of the boil-off gas during fuel charging or recharging of the liquefied fuel gas propulsion vessel.

In addition, the liquefied fuel gas tanker according to the prior art, after completion of the filling or recharging operation with the liquefied fuel gas propulsion vessel, heating the liquefied natural gas remaining in the manifold line or loading line with a heating device to the compression tank through the vent line By recovering, waste of residual liquefied natural gas can be prevented.

1 is a plan view illustrating a fuel supply vessel and a liquefied fuel gas propulsion vessel according to an embodiment of the present invention.
FIG. 2 is a schematic diagram showing a relationship between a liquefied fuel gas supply and a boil-off gas treatment between the fuel supply vessel and the liquefied fuel gas propulsion vessel illustrated in FIG. 1.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a plan view illustrating a fuel supply vessel and a liquefied fuel gas propulsion vessel according to an embodiment of the present invention.

Referring to FIG. 1, the present embodiment provides power generation when supplying liquefied fuel gas as fuel to a liquefied fuel gas propulsion vessel 10 and recovering boil-off gas generated during refueling from the liquefied fuel gas propulsion vessel 10. Compared to the amount of boil-off gas to be used in the apparatus, relates to a fuel supply vessel 100 capable of treating boil-off gas in response to a situation in which the amount of boil-off gas generated in a liquefied fuel gas propulsion vessel is excessively generated or, conversely, insufficiently generated. .

In the present embodiment, the term "fuel supply vessel 100" is not limited to mean a structure that sails the water, not only the structure that sails the water, but also floating in the water to perform the work, but the following detailed description It can be used to include floating offshore structures that can have the same detailed configuration. That is, the fuel supply ship 100 of this embodiment is dried in the form of the fuel supply line which supplies the fuel containing liquefied fuel gas to the liquefied fuel gas propulsion ship 10, or is not mooring capability but is mooring. It may be dried in the form of a floating offshore structure capable of being moored by the device and capable of position control at sea by vessel position control, but the invention may not be limited thereto.

The fuel supply vessel 100 may be provided with a conventional vessel control system.

Here, the ship control system may be an alarm monitoring system (AMS) or an integrated control & monitoring system (ICMS). The ship control system can be configured to perform control to supply, recover, block, inflow, and outflow of liquefied fuel gas or evaporated gas according to a desired flow path or line by opening or closing the corresponding valve by a valve opening / closing control. have.

For example, the ship control system receives status signals such as pressure, temperature, level, and flow rate of a ship engine, generator, cargo hold, storage tank or fuel tank to systematically or manually determine the status, and can also remotely control valves, etc. To control.

The fuel supply vessel 100 may have one or more storage tanks 101 used to store, transport, fill, and recharge liquefied fuel gas.

In addition, the fuel supply vessel 100 may include a manifold 102 for supplying liquefied fuel gas to the fuel tank 11 of the liquefied fuel gas propulsion vessel 10. In addition, the manifold 12 may be provided in the liquefied fuel gas propulsion vessel 10.

In the present description, the manifolds 12 and 102 are installed on the upper deck of the fuel supply vessel 100 or the liquefied fuel gas propulsion vessel 10, are not exposed by the cover plate, or are installed on the outer side of the hull. Can be arranged in the lateral direction between the vessel (10, 100).

In addition, the manifolds 12 and 102 may be understood as an integral part of the apparatus and structure used for the transfer operation of liquefied fuel gas, including the platform under the multi-pipe, the multi-pipe support, the multi-pipe support.

A manifold line 110 of a flexible hose or a loading arm type is fastened between the manifolds 12 and 102 to transfer the liquefied fuel gas.

Manifold line 110 may include a fluid line 111 and the boil-off gas line 112.

That is, the manifold line 110 is evaporated from the tube body for the fluid line 111 for the purpose of transferring the liquefied fuel gas to the liquefied fuel gas propulsion vessel 10 for filling or recharging, and the liquefied fuel gas propulsion vessel 10. It may be provided in a bundle form by grouping a plurality of tubes for the evaporation gas line 112 for the purpose of recovering gas, or may have a structure having a plurality of flow paths (for example, a fluid line or an evaporation gas line) inside one tube. have.

For example, the manifold line 110 forms two fluid lines 111 and one boil-off gas line 112 into one tube, and the manifold line 110 corresponds to the tube of the manifold line 110. Cryogenic connectors can be formed at both ends of the

Cryogenic connectors of manifold line 110 may be formed to meet technical specifications that may be mounted to cryogenic connectors of manifolds 12, 102.

In addition, the fuel supply vessel 100 may further include a manifold line 110 and a crane or a dedicated mobile device for transporting, managing, and handling the manifold line 110.

FIG. 2 is a schematic diagram showing a relationship between a liquefied fuel gas supply and a boil-off gas treatment between the fuel supply vessel and the liquefied fuel gas propulsion vessel illustrated in FIG. 1.

Referring to FIG. 2, the fuel supply vessel 100 according to the present embodiment includes a storage tank 101, a manifold line 110, a loading line 120, a vent line 123, a main pump 130, and a spray. The pump 140, the compression processor 150, the heating device 160, and the power production device 170 may include a supply unit 180.

The storage tank 101 may store the liquefied fuel gas through the manifold 102 of the fuel supply vessel 100.

The storage tank 101 may be used in any type of tank mentioned in the IGC code mentioned in the IGC code (structure and equipment standards of the international liquefied gas carrier). That is, the storage tank 101 may be any one of membrane, A, B and C type tanks.

Manifold line 110 is stored in a storage position during operation of the fuel supply vessel 100, when fixed in a floating state adjacent to the liquefied fuel gas propulsion vessel 10, crane or dedicated movement in the storage position The device may be carried between the manifolds 12 and 102 to be used in combination to interconnect the manifolds 12 and 102.

The loading line 120 is disposed outside the storage tank 101 and is connected to the manifold line 110 through the cryogenic connector of the manifold 102. As a result, the liquefied fuel gas such as LNG propels the liquefied fuel gas. It may be understood as a configuration including a plurality of bundles, valves, and gauges (eg, thermometers, pressure gauges, flow meters) configured to be supplied to the fuel tank 11 of the vessel 10.

For example, the discharge line 121 and the first spray pump line 122 having a loading column structure may be connected to the loading line 120, respectively.

In addition, the loading line 120 may be provided with a main valve 190 for controlling the supply or blocking of liquefied fuel gas, and flow control valves in the discharge line 121 and the first spray pump line 122, respectively. 191 and 192 may be provided.

The main pump 130 is installed inside the storage tank 101 so as to be piped to an end of the discharge line 121 connected to the loading line 120, and the liquefied fuel gas is a fuel tank of the liquefied fuel gas propulsion vessel 10 ( 11) can be supplied.

The spray pump 140 may be installed inside the storage tank 101 to be piped to an end of the first spray pump line 122 connected to the loading line 120.

In this embodiment, between the spray pump 140 and the spray device 13 of the fuel tank 11, the first spray pump line 122, the loading line 120, the fluid line 111, the filling line 18 As the second spray line 17 is provided, the liquefied fuel gas of the storage tank 101 may be supplied to the spray device 13 when the spray pump 140 is operated.

In addition, in the present embodiment, the flow control valve 192 of the first spray pump line 122, the second spray pump line 124 branched from the first spray pump line 122, and the second spray pump line 124. Flow control valve may be provided, and when the spray pump 140 is operated after the normal valve operation for controlling the flow path, the liquefied fuel gas of the storage tank 101 is supplied to the first spray pump line 122 and It may be supplied to the power production unit 170 through the second spray pump line (124).

The vent line 123 may be connected between the manifold 102 and the compression processor 150.

The vent line 123 may be provided with a vent riser 127 and a control valve.

The compression processing unit 150 is a compression inlet line 151 receiving the evaporation gas from the vent line 123, a compressor 152 receiving the evaporation gas from the compression inlet line 151, and compression evaporation from the compressor 152. It may include a compressed discharge line 153 receives the gas.

In addition, the compression processing unit 150 is connected to each of the distribution line 154 branched at least one in the compression discharge line 153, the end of the distribution line 154, at least one compression tank for storing the compressed boil-off gas 155 and a discharge treatment line 156 connected to the vent line 123 from one of the distribution lines 154 to supply the compressed boil-off gas.

Heating device 160 is installed in the heating line 126 connecting between the vent line 123 and the loading line 120, is configured to heat the liquefied natural gas remaining in the loading line or manifold line There may be.

The power production apparatus 170 may be connected to the second spray pump line 124 branched from the first spray pump line 122 or the compressed discharge line 157 extending from the compression processor 150.

The power generation device 170 may be generated in a situation such as transfer, charging, or recharging of liquefied fuel gas, or may be generated by evaporation of the fuel tank 11 of the liquefied fuel gas propulsion vessel 10, which may be naturally generated by temperature change. Can be understood as a device or a fuel consuming device for power generation.

For example, the power production unit 170 is a power control that is used in conjunction with a propulsion unit (for example, DF (duel fuel) diesel engine, ME-GI, etc.), gas turbine unit, boiler, turbine, generator or generator It may be any one of the switch (switch board) or a combination including them.

Supply unit 180 is coupled between the manifold 102 and the storage tank 101, it may be configured to receive the liquefied fuel gas from the outside of the hull.

For example, a supply line 181 for receiving the liquefied fuel gas from the hull outside, that is, the liquefied fuel gas terminal, and storing the liquefied fuel gas in the storage tank 101, and branched from the supply line 181 and extending toward the upper portion of the storage tank 101. The first spray line 182 and the end of the first spray line 182 may include a spray device 183 of the storage tank 101 installed in the upper portion of the storage tank 101.

On the other hand, the fuel tank 11 of the liquefied fuel gas propulsion vessel 10 and the filling line 18 to be connected to the fluid line 111 of the manifold line 110 through the cryogenic connector, and branched from the filling line 18 The second spray line 17 and the boil-off gas discharge line 19 to be connected to the boil-off gas line 112 of the manifold line 110 through the cryogenic connector may be installed.

Referring to the operation method of the fuel supply vessel 100 according to the present invention having such a configuration as an example. The operation method of the fuel supply vessel 100 may be realized by a ship control system that is already installed.

1 or 2, the liquefied fuel gas may be stored in the fuel supply vessel 100.

The fuel supply vessel 10 receives the liquefied fuel gas from the liquefied fuel gas terminal using the manifold 102 and the supply / receiving unit 180.

The liquefied fuel gas supplied from the liquefied fuel gas terminal may cool down the storage tank 101 through the first spray line 182 and the spray device 183.

In addition, the temperature of the storage tank 101 is sufficiently confirmed through a temperature sensor pre-installed in the storage tank 101, and the liquefied fuel gas can be stored in the storage tank 101 through the supply line 181. . The quantity of supply line 181 may be related to the number of storage tanks 101 of the fuel supply vessel 100.

In addition, the boil-off gas generated in the storage tank 101 may be transferred to the terminal through the cryogenic connector of the vent connection line 125, the vent line 123, and the boil-off gas line 112 of the manifold 102.

The fuel supply vessel 100 may load the liquefied fuel gas and move toward the liquefied fuel gas propulsion vessel 10.

The propulsion device of the fuel supply vessel 100 may be designed in various ways, but may be designed as a device that can use the liquefied fuel gas to the maximum (eg, DF, ME-GI, etc.).

In addition, the boil-off gas generated during the movement of the fuel supply vessel 100 is powered through the vent connection line 125, the vent line 123, the compression inlet line 151, the compressor 152 and the compressed discharge line 157. It can be sent to the production apparatus 170 and used.

At this time, when only the evaporation gas generated during the movement of the fuel supply vessel 100 does not meet the required amount of the power production apparatus 170, the spray pump 140 is operated to liquefied fuel gas of the storage tank 101 to the first The spray pump line 122 and the second spray pump line 124 may be additionally supplied.

At this time, since the liquefied fuel gas supplied is in the form of LNG, a fuel processing device (not shown) for liquefied fuel gas provided in advance in the fuel supply vessel 100, such as a compressor or a vaporizer, may be further used, and thus, a power production apparatus ( The liquefied fuel gas may be converted into a form usable in 170 and then supplied to the power generator 170.

On the other hand, if the boil-off gas is excessive than the required amount of the power production unit 170, the compressor 152 is operated to ensure that the liquefied fuel gas is vent connection line 125, vent line 123, compression inlet line 151, The compressor 152, the compression discharge line 153, and the distribution line 154 may be stored in the compression tank 155.

In addition, when the boil-off gas is excessive than the capacity that can be stored in the compression tank 155, it may be discharged through the ventrizer 127, or consumed by using a gas incinerator (GCU) (not shown).

The fuel supply vessel 100 may prepare to supply liquefied fuel gas to the liquefied fuel gas propulsion vessel 10.

Here, a tandem or a ship to ship side by side method may be used so that the liquefied fuel gas propulsion vessel 10 may be moored with the fuel supply vessel 100, and both sides of a conventional mooring line may be used. It can be installed in ships 10 and 100.

If the tandem method, the manifold line 110 may be a flexible pipe degree, and in the case of a parallel mooring method, a flexible pipe or a loading arm may be used.

Thereafter, the fuel supply vessel 100 may supply the liquefied fuel gas to the liquefied fuel gas propulsion vessel 10.

First, the fuel supply vessel 100 operates the spray pump 140, the spray pump line 122, the loading line 120, the fluid line 111 of the manifold line 110, and the second spray line 17. A portion of the liquefied fuel gas of the storage tank 101 is supplied to the spray device 13 of the fuel tank 11 of the liquefied fuel gas propulsion vessel 10 through the cooling tank 11, and the fuel tank 11 is cooled down. Let's do it.

Thereafter, the fuel supply vessel 100 checks the temperature of the fuel tank 11 capable of supplying fuel through a temperature sensor that can be pre-installed in the fuel tank 11.

After checking the temperature, the fuel supply vessel 100 operates the main pump 130, the discharge line 121, the loading line 120, the fluid line 111 and the filling line 18 of the manifold line 110. Through the liquefied fuel gas of the storage tank 101 is supplied to the fuel tank 11 of the liquefied fuel gas propulsion vessel 10 to fill.

The boil-off gas generated in the fuel tank 11 during the filling process is the boil-off gas discharge line 19 of the fuel tank 11, the boil-off gas line 112 of the manifold line 110, the vent line 123 and the vent connection line. It may be introduced into the storage tank 101 of the fuel supply vessel 100 through the 125, and may be used to maintain the pressure of the storage tank 101.

In addition, when the boil-off gas generated during the filling process is excessive than maintaining the pressure of the storage tank 101, the compressor 152 is operated, the boil-off gas discharge line of the fuel tank 11 ( 19), the compression through the boil-off gas line 112, the vent line 123, the compression inlet line 151, the compressor 152, the compression outflow line 153 and the distribution line 154 of the manifold line 110. May be stored in the tank 155.

In addition, when the boil-off gas generated during the filling process is insufficient to maintain the pressure of the storage tank 101, or when the insufficient amount of the boil-off gas to be used in the power generator 170, the heating device 160 is operated By supplying the evaporated gas increased by the heating to the storage tank 101, or by operating the heating device 160 and the compressor 152 to increase the evaporated gas to the compression tank 155 or the power production device 170 Can supply

In addition, after the fuel supply is finished, the heating device 160 and the compressor 152 are further operated to process the liquefied fuel gas remaining in the fluid line 111 of the loading line 120 or the manifold line 110. Can be.

In this case, the remaining liquefied fuel gas is a heating line 126, heating device 160, vent line 123, compression inlet line 151, compressor 152, compression outflow line 153 and distribution line 154 Through may be finally recovered and stored in the compression tank 155.

The fuel supply vessel 100 that has completed supply or transfer (eg, charging or recharging) of liquefied fuel gas to the liquefied fuel gas propulsion vessel 10 may move to the liquefied fuel gas terminal.

The fuel supply vessel 100 may use the compressed boil-off gas stored in the compression tank 155 in the power production apparatus 170 through the compression discharge line 157.

After the fuel supply vessel 100 is anchored, the compressed boil-off gas may be returned to the liquefied fuel gas terminal through the exhaust treatment line 156 and the vent line 123 and the manifold 102.

In addition, the fuel supply vessel 100 may be discharged through the ventrizer 127 if necessary, or consumed by using a gas incinerator.

As described above, specific embodiments have been described in the detailed description of the present invention, but it is obvious that the technology of the present invention can be easily modified by those skilled in the art, and such modified embodiments are defined in the claims of the present invention. It will be included in the technical idea described.

10: liquefied fuel gas propulsion vessel 11: fuel tank
12, 102 manifold 13 spray device of fuel tank
100: fuel supply vessel 101: storage tank
110: manifold line 111: fluid line
112: boil-off gas line 120: loading line
121: discharge line 122: first spray pump line
123: vent line 124: second spray pump line
125: vent connection line 126: heating line
130: main pump 140: spray pump
150: compression processing unit 152: compressor
155: compression tank 160: heating device
161: heating line 170: power production equipment
180: supply and demand 181: supply line
182: first spray line 183: spray device of the storage tank

Claims (7)

A storage tank for storing liquefied fuel gas through a manifold;
A loading line disposed outside the storage tank;
A main pump installed inside the storage tank so as to be piped to an end of the discharge line connected to the loading line, and supplying the liquefied fuel gas to the fuel tank of the liquefied fuel gas propulsion vessel;
A spray pump installed inside the storage tank so as to be piped to an end of the first spray pump line connected to the loading line, and supplying a part of the liquefied fuel gas to the spray device of the fuel tank;
A vent line connected between the manifold and the compression processor;
A heating apparatus installed at a heating line connecting the vent line and the loading line, and heating the liquefied natural gas remaining in the loading line or the manifold line.
Fuel supply vessel.
The method of claim 1,
Further comprising a power production device connected to the second spray pump line branched from the first spray pump line or the compression discharge line extending from the compression processing unit,
The power production unit,
Fuel cells containing one or more of a diesel fuel or propulsion unit including ME-GI, gas turbine unit, boiler, turbine and generator
Fuel supply vessel.
The method of claim 1,
It is coupled between the manifold and the storage tank, and further includes a supply for receiving the liquefied fuel gas from the hull,
The supply-demand part,
Supply line for receiving the liquefied fuel gas of the liquefied fuel gas terminal to store in the storage tank,
A first spray line branched from the supply line,
A spray device for a storage tank piped to an end of the first spray line and installed on an inner upper portion of the storage tank;
Fuel supply vessel.
The method of claim 1,
The fuel supply vessel,
Further comprising a manifold line of the flexible pipe or loading arm type is fastened between the manifold and another manifold provided in the liquefied fuel gas propulsion vessel
Fuel supply vessel.
5. The method of claim 4,
The manifold line includes a fluid line and a boil off gas line
Fuel supply vessel.
The method of claim 1,
The compression processing unit,
Compression inlet line receiving the boil-off gas from the vent line,
A compressor receiving the evaporated gas from the compression inlet line,
A compressed outflow line receiving compressed boil-off gas from the compressor;
A distribution line branched into at least one branch in the compression discharge line;
At least one compression tank connected to an end of the distribution line and storing the compressed boil-off gas;
A discharge treatment line connected to the vent line from one of the distribution lines to supply the compressed boil-off gas;
Fuel supply vessel.
7. The method according to any one of claims 1 to 6,
The fuel supply vessel is dried in the form of a fuel supply line or a floating offshore structure
Fuel supply vessel.

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