KR102189722B1 - System for supplying fuel gas in ships - Google Patents

Abstract

The ship's fuel supply system is started. A fuel supply system according to an embodiment of the present invention includes a fuel tank for storing liquefied fuel, and a fuel supply line for receiving the liquefied fuel stored in the fuel tank, compressing the liquefied fuel to meet the required pressure of the engine, and vaporizing it to supply the fuel to the engine. And branched from the fuel supply line, the liquefied fuel supplied from the fuel supply line is reformed through a chemical catalytic reaction to generate hydrogen, and the generated hydrogen is selectively supplied to the fuel supply line through which the vaporized liquefied fuel flows. It includes a hydrogen supply line.

Description

Ship fuel supply system{SYSTEM FOR SUPPLYING FUEL GAS IN SHIPS}

The present invention relates to a fuel gas supply system capable of using liquefied fuel stored in a liquefied fuel storage tank of a ship as fuel.

Ethane extracted from shale gas and liquefied natural gas (hereinafter referred to as “LNG”) is used as a raw material for petrochemical products, and its economic feasibility has recently emerged. At 1 atmosphere, ethane has a boiling point of approximately -88.6°C, and methane, a major component of LNG, has a boiling point of approximately -161.5°C. These ethane and LNG can be transported by ship in a liquefied state.

The ship may have a fuel gas supply system that converts the LNG boil-off gas (BOG) supplied from the storage tank or the pressure, temperature, and state of LNG and supplies it to the engine. Here, ships include low-pressure gas injection engines such as DFDE (Dual Fuel Disel Electric) engines that use two or more different fuels as fuel, and high-pressure gas injection engines such as ME-GI engines (Man B&W's Gas Injection engine). I can.

For example, Korean Patent Publication No. 10-2008-0103500 (published on November 27, 2008) has proposed a fuel gas supply system capable of supplying fuel to a high-pressure gas injection engine such as a ME-GI engine. This system extracts LNG from the LNG fuel tank, compresses it at high pressure, vaporizes it, and supplies it to the high-pressure gas injection engine. In addition, various fuel gas supply systems such as supplying the LNG boil-off gas supplied from a storage tank to the supply condition in a multi-stage compressor and then supplying it to the engine or re-liquefying it for storage have been known.

Korean Patent Publication No. 10-2008-0103500 (published on November 27, 2008)

Embodiments of the present invention are intended to provide a fuel supply system for a ship that can improve the efficiency of an engine using liquefied fuel.

The problems to be solved of the present invention are not limited to the above-mentioned problems, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

According to one aspect of the present invention, a fuel tank for storing liquefied fuel, and a fuel supply for receiving the liquefied fuel stored in the fuel tank, compressing and vaporizing the liquefied fuel to meet the required pressure of the engine, and supplying it to the engine Supplying the fuel that is branched from the line and the fuel supply line, and the liquefied fuel supplied from the fuel supply line is reformed through a chemical catalytic reaction to generate hydrogen, and the liquefied fuel vaporized from the generated hydrogen flows A ship's fuel supply system including a hydrogen supply line that selectively supplies the line.

In addition, the hydrogen supply line includes a pressure pump that pressurizes the liquefied fuel supplied from the fuel supply line, a vaporizer that vaporizes the liquefied fuel compressed by the pressure pump, and the vaporized liquefied fuel contains oxygen in water and air. And a hydrogen generator generating hydrogen by causing a catalytic autothermal reforming reaction may be sequentially connected.

In addition, the hydrogen supply line may further include a hydrogen storage tank for storing hydrogen generated by the hydrogen generator and supplying it to the fuel supply line.

In addition, the hydrogen generator includes a mixer for mixing the vaporized liquefied fuel, the water and the air, a water supply unit for supplying the water to the mixer, an air supply unit for supplying the air to the mixer, and the It includes an autothermal reforming reactor that generates hydrogen by autothermal reforming reaction of the mixed gas mixed in the mixer.

In addition, the water supply unit includes a water supply pump for supplying the water and a heater for heating water supplied by the water supply pump to generate water vapor, and the water supply unit converts the water vapor generated by the heater into the mixer. Can be provided.

In addition, the fuel supply line includes a fuel compression pump for pressurizing the liquefied fuel supplied from the fuel tank to match the required pressure of the engine, and a fuel carburetor for vaporizing the liquefied fuel compressed by the fuel compression pump. , The hydrogen supply line is branched from the fuel supply line on a downstream side of the fuel carburetor to receive the liquefied fuel vaporized by the fuel carburetor.

In addition, the air supply unit includes an air generating unit for supplying the air and a buffer tank positioned at a rear end of the air generating unit to prevent pulsation of the air supplied to the mixer.

In addition, a turbocharger for supplying compressed turbocharged air to the engine using the exhaust gas pressure of the engine may be further included, and the air generator may be driven by receiving the rotational force of the turbocharger.

Another aspect of the present invention is a fuel tank for storing liquefied fuel, a boil-off gas fuel supply line for compressing the boil-off gas of the liquefied fuel stored in the fuel tank to meet the required pressure of the engine and supplying it to the engine; and The evaporation is branched from the gas fuel supply line, and the boil-off gas supplied from the boil-off gas fuel supply line is reformed through a chemical catalytic reaction to generate hydrogen, and the generated hydrogen is flowed through the compressed boil-off gas. A fuel supply system of a ship including a hydrogen supply line selectively supplying a gas fuel supply line may be provided.

In addition, in the hydrogen supply line, a hydrogen generator for generating hydrogen by causing the boil-off gas to react with oxygen in water and air to generate hydrogen, and the boil-off gas fuel supply line by storing hydrogen generated by the hydrogen generator. A hydrogen storage tank to supply to may be provided.

In addition, the hydrogen generator includes a mixer for mixing the boil-off gas, the water, and the air, a water supply unit for supplying water to the mixer, an air supply unit for supplying the air to the mixer, and the mixture in the mixer. It includes an autothermal reforming reactor that generates hydrogen by autothermal reforming of the mixed gas.

In addition, the air supply unit includes a blowing fan for supplying the air, and a buffer tank positioned at a rear end of the blowing fan to prevent pulsation of the air, and the blowing fan uses the exhaust gas pressure of the engine. It can rotate by receiving the rotational force of a turbocharger supplying compressed turbocharged air to the engine.

Embodiments of the present invention can improve engine efficiency by supplying hydrogen to fuel supplied to the engine when incomplete combustion occurs in an engine of a ship using liquefied fuel as fuel.

In addition, embodiments of the present invention can reduce energy consumption of a ship fuel supply system by using the power of the air supply unit supplying air to the autothermal reforming reactor using the rotational force of the turbocharger.

1 schematically illustrates a fuel supply system for a ship according to a first embodiment of the present invention.
2 schematically shows a fuel supply system for a ship according to a second embodiment of the present invention.
3 schematically shows a fuel supply system for a ship according to a third embodiment of the present invention.
4 schematically shows a power transmission structure of a turbocharger and an air generator according to a third embodiment of the present invention.
5 schematically illustrates a fuel supply system for a ship according to a fourth embodiment of the present invention.
6 schematically illustrates a fuel supply system for a ship according to a fifth embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments introduced below are provided as examples in order to sufficiently convey the spirit of the present invention to those of ordinary skill in the art. The present invention is not limited to the embodiments described below and may be embodied in other forms. In order to clearly describe the present invention, portions irrelevant to the description are omitted from the drawings, and in the drawings, the width, length, thickness, etc. of components may be exaggerated and expressed for convenience. The same reference numbers throughout the specification denote the same elements.

In addition, terms including ordinal numbers such as “first” and “second” may be used to describe various constituent elements, but constituent elements are not limited by terms. The terms are only used for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

The terms used in the present application are used to describe exemplary embodiments, and are not intended to limit or limit the invention, and expressions in the singular include plural expressions unless they have a clearly different meaning in context. In the present application, terms such as "comprise" or "comprise" are intended to designate the presence of features, numbers, steps, elements, or combinations thereof described in the specification, and one or more other features or numbers, It is to be understood that the possibility of the presence or addition of steps, components, or combinations thereof is not preliminarily excluded. In addition, when a part is said to be "connected" with another part, this includes not only the case that it is directly connected, but also the case that it is indirectly connected with another component in the middle.

1 schematically illustrates a fuel supply system for a ship according to a first embodiment of the present invention.

Referring to FIG. 1, the fuel supply system of a ship according to the first embodiment of the present invention receives a fuel tank 10 storing liquefied fuel, which is a power source of a ship engine, and liquefied fuel stored in the fuel tank 10. A fuel supply line 30 that compresses and vaporizes liquefied fuel to meet the required pressure of the engine and supplies it to the engine 20, and the liquefied fuel branched from the fuel supply line 30 and supplied from the fuel supply line 30 It includes a hydrogen supply line 40 for generating hydrogen by reforming through a chemical catalytic reaction, and selectively supplying the generated hydrogen to the fuel supply line 30 through which the vaporized liquefied fuel flows.

Here, the ship includes a liquefied fuel carrier, a liquefied fuel RV (Regasification Vessel), a container ship, a general merchant ship, LNG FPSO (Floating, Production, Storage and Off-loading), LNG FSRU (Floating Storage and Regasification Unit), etc. Liquefied fuel may include liquefied ethane, LNG, liquefied ethylene, LPG, liquefied propane, and liquefied butane that can be stored in a liquefied state.

The fuel tank 10 may have an appropriate thermal insulation structure for storing and transporting liquefied fuel, and may be composed of various known thermal insulation tanks, such as MOSS type and Membrane type. A supply pump P for supplying the liquefied fuel stored in the fuel tank 10 to the fuel supply line 30 may be provided inside the fuel tank 10.

The fuel supply line 30 is a pipe for receiving liquefied fuel from the lower portion of the fuel tank 10 and supplying the supplied liquefied fuel to the engine 20 at a suitable gas pressure, and sequentially on the fuel supply line 30 The fuel compression pump 31 and the fuel carburetor 33 may be connected. The supply of liquefied fuel from the fuel tank 10 to the fuel supply line 30 may be achieved by transmission and output of the supply pump P and/or the fuel compression pump 31.

The fuel compression pump 31 delivers the liquefied fuel under the fuel tank 10 to the fuel supply line 30 and compresses the liquefied fuel to meet the required pressure of the engine 20, and the fuel carburetor 33 ) May vaporize the liquefied fuel compressed by the fuel compression pump 31 and supply it to the engine 20.

Here, the engine 20 may include at least one of a low-pressure, medium-pressure, or high-pressure gas injection engine, and the fuel compression pump 31 is a fuel supply line 30 to meet a required pressure corresponding to the type of the engine 20. The liquid fuel flowing in) can be compressed.

For example, the low-pressure gas injection engine uses a fuel gas of about 5 to 7 bar, and includes an engine for power generation such as a DFDE engine. In addition, the low-pressure gas injection engine may be a dual fuel engine that can use not only natural gas but also heavy fuel oil (HFO) as fuel. The medium pressure gas injection engine uses approximately 16 to 45 bar of fuel gas. The high-pressure gas injection engine uses fuel gas of approximately 150 to 300 bar and may include a ME-GI engine.

The hydrogen supply line 40 is a configuration for selectively supplying hydrogen to the vaporized liquefied fuel supplied to the engine 20 through the fuel supply line 30.

Specifically, various types of hydrocarbon-based liquefied fuels supplied to the engine 20 by the fuel supply line 30 may cause incomplete combustion in the engine 20 according to the ratio of carbon molecules, and such incomplete combustion When generated, the hydrogen supply line 40 produces hydrogen using a hydrogen generator 50 for reforming the liquefied fuel supplied from the fuel supply line 30, and the engine ( Hydrogen which is easy to burn can be selectively supplied to the vaporized liquefied fuel supplied to 20).

Here, the reforming treatment of the hydrogen generator 50 includes Autothermal Reforming (ATR), Partial Oxidation (POX), and steam reforming (Steam) capable of producing hydrogen by reforming liquefied fuel through a chemical catalytic reaction. Reforming: SR) may include one or a combination thereof, but an example using the autothermal reforming method will be described below.

The hydrogen supply line 40 includes a pressure pump 41 that pressurizes and delivers the liquefied fuel supplied from the fuel supply line 30, a vaporizer 43 that vaporizes the liquefied fuel compressed by the pressure pump 41, and a vaporizer. A hydrogen generator 50 that generates hydrogen using an Autothermal Reforming method by receiving the vaporized liquefied fuel supplied through 43, and the hydrogen generated by the hydrogen generator 50 are stored to fuel when necessary. It may include a hydrogen storage tank 60 provided to the supply line 30.

The pressurizing pump 41 can compress the liquefied fuel to match the reaction pressure of the autothermal reforming reactor 58, and the vaporizer 43 vaporizes the compressed liquefied fuel and converts atomized spray particles into a mixer of the hydrogen generator 50. (51) can be supplied. In contrast, in another embodiment, the pressure pump 41 and the vaporizer 43 may be omitted according to the reforming treatment method of the hydrogen generator 50, and the pressure pump 41 is a liquefied fuel flowing through the hydrogen supply line 40. It can perform the function of the transfer pump for supplying the mixer (51).

The hydrogen generator 50 is a device for producing a hydrogen-rich reformed gas by reforming a mixture of liquefied fuel, water, and oxygen in air using a catalyst, and includes a mixer 51, a water supply unit 52, and an air supply unit. (55) and an Auto Thermal Reformer (ATR) 58.

The mixer 51 mixes the liquefied fuel vaporized through the pressure pump 41 and the vaporizer 43, the water supplied by the water supply unit 52, and the air supplied by the air supply unit 55 to be suitable for the reforming reaction. The mixture mixed at the reaction temperature may be supplied to the autothermal reforming reactor 58.

The mixer 51 may be composed of a sealed tank having an internal space of a predetermined volume to mix vaporized liquefied fuel, water, and air, and may be made of a pressure-resistant tank considering pressure resistance.

The water supply unit 52 is for supplying water required for self-thermal reforming, and may include a water tank for storing water and a pump for supplying water stored in the water tank to the mixer 51. Water supplied by the water supply unit 52 is provided to the mixer 51 through the water supply line 52a, and may be mixed with the vaporized liquefied fuel.

The air supply unit 55 is for supplying oxygen in air required for autothermal reforming, and may include an air compressor or a blower supplying compressed air. Compressed air supplied by the air supply unit 55 is provided to the mixer 51 through the air supply line 55a, and may be mixed with the vaporized liquefied fuel.

The autothermal reforming reactor 58 includes an autothermal reforming catalyst layer (not shown) receiving a mixture of liquefied fuel supplied from the mixer 51, water, and oxygen in the air, and an autothermal reforming reaction in the autothermal reforming catalyst layer, that is, an endothermic reaction. A steam reforming reaction and a partial oxidation reaction, which is an exothermic reaction, proceeds to generate a reformed gas containing hydrogen, and hydrogen can be separated and produced from the reformed gas by passing the generated reformed gas through a hydrogen separation membrane (not shown).

Hydrogen produced by the autothermal reforming reactor 58 can be temporarily stored in the hydrogen storage tank 60, and is supplied to the fuel supply line 30 through which the vaporized liquefied fuel flows as needed, together with the vaporized liquefied fuel. It can be supplied to the engine 20.

Meanwhile, although not specifically shown in the present embodiment, the fuel supply line 30, the hydrogen supply line 40, the water supply line 52a, and the air supply line 55a are flow paths for controlling the fluid flowing along each line. It goes without saying that various types of valves such as switching valves, flow control valves and pressure control valves can be installed.

Hereinafter, a fuel supply system for a ship according to a second embodiment of the present invention will be described with reference to FIG. 2. Hereinafter, configurations having the same functions as those of the above-described embodiment are given the same reference numerals, and detailed descriptions are omitted.

Referring to FIG. 2, in the present embodiment, in order to improve the reforming efficiency of the autothermal reforming reactor 58, the water supply unit 52 supplies water supplied to the mixer 51 in the form of steam. It has the same configuration as the first embodiment.

The water supply unit 52 heats a water tank (not shown) for storing water, a water supply pump 54 for delivering water from the water tank, and water supplied by the water supply pump 54 to generate water vapor. It includes a heater 53 to generate. Here, the heater 53 may include a heat exchanger that performs heat exchange using a heater or an external heat source (eg, exhaust gas).

Through this, the water supplied by the water supply pump 54 is supplied to the heater 53, is steamed in the heater 53, and then supplied to the mixer 51 through the water supply line 52a. And in the mixer 51, the steam supplied through the water supply line 52a, the vaporized liquefied fuel, and oxygen in the air provided through the air supply unit 55 are mixed, and the mixed gas is an autothermal reforming reactor 58. It is possible to reduce fluctuations in flow rate and pressure in the autothermal reforming reactor 58 by being supplied in the state of fine spray particles, and to reduce the initial operating time of the autothermal reforming reactor 58.

Hereinafter, a fuel supply system for a ship according to a third embodiment of the present invention will be described with reference to FIG. 3. Hereinafter, configurations having the same functions as those of the above-described embodiment are given the same reference numerals, and detailed descriptions are omitted.

Referring to FIG. 3, the present embodiment has the same configuration as the above-described embodiment except for the configuration of the air supply unit 55 supplying air to the mixer 51.

The air supply unit 55 according to the present embodiment absorbs the fluctuating pressure (pulsation) of the air supplied from the air generator 57 and the air generating unit 57 composed of an air compressor or a blowing fan supplying compressed air. It includes a buffer tank 56 for.

The buffer tank 56 serves as a buffer tank that temporarily absorbs fluctuating pressure that may occur when the air compressor or the blowing fan is started, thereby enabling stable air supply to the mixer 51.

The air generating unit 57 may be composed of an air compressor or a blower for supplying external air, and the power of the air generating unit 57 is supercharged to the engine 20 using the exhaust gas pressure of the engine 20 It may be provided to receive the rotational force of the turbocharger 70 supplying air.

Referring to FIG. 4, the turbocharger 70 rotates one turbine 71 using the pressure of the exhaust gas generated from the engine 20, and then uses this rotational force to rotate the other turbine 71 and the other It is a device that supplies compressed turbocharged air to the combustion chamber of the engine 20 by rotating the side turbine 72 and compressing the introduced external air. That is, the exhaust gas discharged during combustion of the engine 20 is supplied to the turbocharger 70 through the exhaust line 73, rotates one turbine 71 of the turbocharger 70, and is exhausted to the outside, and air is injected. Air required for combustion of the engine 20 supplied through the line 74 is supplied to the combustion chamber of the engine 20 through the air injection line 74 via the other turbine 72 of the turbocharger 70. do.

At this time, the air generating unit 57 may be connected through the power transmission member 80 to receive the rotational force of one turbine 71, and the rotational force of the turbine 71 transmitted through the power transmission member 80 Can be driven using.

As an example, when the air generating unit 57 is composed of a blower having a blowing fan that pressurizes gas by the rotational motion of the motor, the power transmission member 80 is used to rotate and drive the blowing fan 82 instead of the motor. It can be configured to use the rotational force of the turbine 71 transmitted through. In addition, although not shown, when the air generator 57 is made of an air compressor, the power to drive the piston or the rotor may be configured to use the rotational force of the turbine 71 transmitted through the power transmission member 80. Here, the power transmission member 80 is a component for transmitting the rotational force of the turbine 71, may be composed of a gear, belt or shaft connection structure, and a clutch structure for selectively transmitting the rotational force of the turbine 71 It may include.

Through this configuration, since the air generating unit 57 that pressurizes and blows external air is driven by receiving the rotational force of the turbocharger 70, pulsation due to fluctuation pressure of the exhaust gas of the engine 20 may occur. The air supplied by the air generator 57 may be buffered through the buffer tank 56 and then supplied to the mixer 51, thereby enabling a stable supply.

Hereinafter, a fuel supply system for a ship according to a fourth embodiment of the present invention will be described with reference to FIG. 5. Hereinafter, configurations having the same functions as those of the above-described embodiment are given the same reference numerals, and detailed descriptions are omitted.

5, in this embodiment, the hydrogen supply line 40a branched from the fuel supply line 30 is provided to receive the vaporized liquefied fuel through the fuel compression pump 31 and the fuel carburetor 33 Except for, it has the same configuration as the above-described embodiment.

Specifically, the hydrogen supply line 40a is provided to branch from the fuel supply line 30 on the downstream side of the fuel carburetor 33 with respect to the supply direction of the liquefied fuel supplied to the engine 20 along the fuel supply line 30 Can be.

Accordingly, the hydrogen supply line 40a receives the liquefied fuel vaporized from the fuel carburetor 33 and provides it to the mixer 51 of the hydrogen generator 50, and the mixer 51 is supplied from the water supply unit 52. Water or steam, and air supplied from the air supply unit 55 may be mixed with vaporized liquefied fuel and provided to the autothermal reforming reactor 58.

Hydrogen generated in the autothermal reforming reactor 58 is stored in the hydrogen storage tank 60, and the hydrogen storage tank 60 can be selectively supplied to the fuel supply line 30 when incomplete combustion of the engine 20 occurs. have.

In this case, the hydrogen supply line 40 can exclude the configuration of a separate pressure pump 41 and a vaporizer 43 for pressurizing and vaporizing the liquefied fuel supplied from the fuel tank 10. In addition, although not shown, the vaporized liquefied fuel supplied from the fuel supply line 30 to the mixer 51 is adjusted to the temperature, pressure, and state of the vaporized liquefied fuel to match the reaction conditions of the autothermal reforming reactor 58. Separate devices (eg, pressure valves, heat exchangers, heaters, etc.) may be installed in the upstream hydrogen supply line 40a of the mixer 51.

Hereinafter, a fuel supply system for a ship according to a fifth embodiment of the present invention will be described with reference to FIG. 6. Hereinafter, configurations having the same functions as those of the above-described embodiment are given the same reference numerals, and detailed descriptions are omitted.

6, the fuel supply system of the ship according to the embodiment of the present invention compresses the boil-off gas of liquefied fuel stored in the fuel tank 10 to meet the required pressure of the engine 20 and supplies it to the engine 20. The gas fuel supply line 90 and the boil-off gas branched from the boil-off gas fuel supply line 90 and the boil-off gas supplied from the boil-off gas fuel supply line 90 are reformed through a chemical catalytic reaction to generate hydrogen, and the generated hydrogen And a hydrogen supply line 40b selectively supplying the compressed boil-off gas to the boil-off gas fuel supply line.

The boil-off gas fuel supply line 90 is a pipe for receiving the liquefied fuel boil-off gas inside the fuel tank 10 and supplying the supplied boil-off gas of the liquefied fuel to the engine 20 at a suitable gas pressure. A boil-off gas compressor 93 for pressurizing the liquefied fuel boil-off gas supplied from the fuel tank 10 to a pressure required by the engine 20 may be connected on the line 90. Here, the boil-off gas compressor 93 shows an example of a multi-stage compressor having a plurality of compressors 93a and a plurality of coolers 93b for multistage compression of the supplied boil-off gas, but this corresponds to an example, and the engine If the boil-off gas supplied to meet the required pressure of (20) is compressed, it is not limited thereto. That is, when the engine 20 is made of one of a low-pressure, medium-pressure, or high-pressure gas injection engine, or a combination thereof, the boil-off gas compressor 93 may be variously provided to suit this.

The hydrogen supply line 40b is branched from the boil-off gas fuel supply line 90 on the upstream side of the boil-off gas compressor 93 with respect to the supply direction of the boil-off gas, and the boil-off gas supplied through the branched hydrogen supply line 40b is When incomplete combustion of the engine 20 occurs after being supplied to the hydrogen generator 50 to be reformed and the hydrogen generated in the hydrogen generator 50 is stored in the hydrogen storage tank 60, the downstream side of the compressor 93 is optionally The boil-off gas may be supplied to the fuel supply line 90. Here, it goes without saying that the hydrogen generator 50 may include all or only part of each of the components of the water supply unit 52 and the air supply unit 55 of the above-described embodiment.

In the above, specific embodiments have been illustrated and described. However, it is not limited only to the above-described embodiments, and those of ordinary skill in the art to which the invention pertains will be able to perform various changes without departing from the gist of the technical idea of the invention described in the following claims.

10: fuel tank, 20: engine,
30: fuel supply line, 31: fuel compression pump,
33: fuel carburetor, 40: hydrogen supply line,
50: hydrogen generator, 51: mixer,
52: water supply unit, 55: air supply unit,
58: autothermal reforming reactor, 60: hydrogen storage tank,
70: turbocharger, 90: boil-off gas fuel supply line.

Claims (12)

A fuel tank for storing liquefied fuel;
A fuel supply line for receiving the liquefied fuel stored in the fuel tank, compressing the liquefied fuel to meet the required pressure of the engine, vaporizing it, and supplying it to the engine; And
A pressure pump branching from the fuel supply line and pressurizing the liquefied fuel supplied from the fuel supply line, a vaporizer for vaporizing the liquefied fuel compressed by the pressure pump, a hydrogen generator for generating hydrogen, the A hydrogen supply line sequentially connected to a hydrogen storage tank for storing hydrogen generated by a hydrogen generator and supplying it to the fuel supply line;
The hydrogen generator,
A mixer for mixing the vaporized liquefied fuel with water and air;
A water supply unit for supplying the water to the mixer;
An air generator that is driven by receiving the rotational force of a turbocharger that supplies compressed turbocharged air to the engine using the exhaust gas pressure of the engine and supplies the air to the mixer, and the mixer located at a rear end of the air generator. An air supply unit including a buffer tank for preventing pulsation of air supplied to the air; And
A fuel supply system for a ship comprising a; an autothermal reforming reactor for generating hydrogen by autothermal reforming reaction of the mixed gas mixed in the mixer. The method of claim 1,
The water supply unit,
A water supply pump for supplying the water; And
Including; a heater for generating water vapor by heating the water supplied by the water supply pump,
The water supply unit is a fuel supply system for a ship that provides water vapor generated by the heater to the mixer. A fuel tank for storing liquefied fuel;
A boil-off gas fuel supply line for compressing the boil-off gas of the liquefied fuel stored in the fuel tank to meet the required pressure of the engine and supplying it to the engine;
Branched from the boil-off gas fuel supply line, a mixer for mixing the boil-off gas, water and air, a water supply unit for supplying the water to the mixer, an air supply unit for supplying the air to the mixer, and the Hydrogen connected to a hydrogen generator including an autothermal reforming reactor that generates hydrogen by an autothermal reforming reaction of the mixed gas mixed in a mixer, and a hydrogen storage tank storing hydrogen generated in the hydrogen generator and supplying it to the evaporative gas fuel supply line Supply line;
The air supply unit includes a blowing fan for supplying the air, and a buffer tank located at a rear end of the blowing fan to prevent pulsation of the air,
The blower fan is a fuel supply system for a ship that rotates by receiving a rotational force of a turbocharger that supplies compressed turbocharged air to the engine using the exhaust gas pressure of the engine. delete delete delete delete delete delete delete delete delete

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