KR20180060214A - A Regasification System Of Gas and Vessel having same - Google Patents

Abstract

According to the present invention, provided is a gas regasification system, which comprises: a vaporizing unit having a vaporizer for vaporizing liquefied gas stored in a liquefied gas storage tank and a trim heater heating the liquefied gas vaporized from the vaporizer to supply the same to a demand source; and a heat source supply apparatus transferring heat medium exchanging heat with the liquefied gas to the vaporizing unit, wherein a compressor compressing the heat medium in gas phase to supply the same to the trim heater is included.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas regeneration system,

The present invention relates to a gas regeneration system and a vessel including the same.

Generally, it is known that LNG is a clean fuel and its reserves are more abundant than petroleum, and its usage is rapidly increasing as mining and transfer technology develops. This LNG is generally stored in a liquid state at a temperature of -162 ° C. or less under 1 atm of the main component. The volume of liquefied methane is about 1/600 of the volume of methane in a gaseous state in a standard state, Is 0.42, which is about one half of the specific gravity of crude oil.

LNG is liquefied with ease of transportation and used after vaporizing at the place of use after transportation. However, due to the risk of natural disasters and terrorism, it is feared to install LNG vaporization equipment onshore.

As a result, in place of the conventional liquefied natural gas regeneration system installed on the land, a system for supplying natural gas that is vaporized on the land by installing a regeneration device on an LNG carrier carrying the liquefied natural gas Is in the spotlight.

In the LNG regasifier system, the LNG stored in the liquefied gas storage tank is pressurized by the booster pump and sent to the LNG vaporizer, which is vaporized by the LNG vaporizer and sent to the onshore consumer. Here, a large amount of energy is required in the process of heat exchange in which the temperature of the LNG is increased on the LNG vaporizer. Therefore, in order to solve the problem that the energy used in this process is wasted due to inefficient exchange, various heat exchange techniques for efficient regeneration have been studied.

The present invention has been made to improve the prior art, and it is an object of the present invention to provide a gas regeneration system capable of maximizing the regeneration efficiency of liquefied gas and a vessel including the same.

A gas regeneration system according to the present invention includes a vaporizer including a vaporizer for vaporizing a liquefied gas stored in a liquefied gas storage tank, and a trim heater for heating the vaporized liquefied gas from the vaporizer to supply it to a customer; And a heat source supply device for transferring the heat medium to be heat-exchanged with the liquefied gas to the vaporizing part, wherein the heat source supply device includes a compressor for compressing the gaseous heat medium and supplying the heat medium to the trim heater.

Specifically, the apparatus may further include a heat source heat exchanger for transmitting a heat source to the heat medium, and the compressor may be disposed downstream of the heat source heat exchanger.

Specifically, the heat source supply device may include: a first heat source supply device for supplying a first heat medium, which is a heat source, to the vaporizer; And a second heat source supply device for supplying a second heat medium as a heat source to the trim heater.

Specifically, the first heat source supply device may include: a heating medium first circulation line circulating the first heat medium and having the vaporizer; A heating medium pump provided on the heating medium first circulation line for pressurizing the first heating medium in a liquid phase to supply the liquid to the vaporizer; And a first heat exchanger for transferring a heat source to the first heat medium, wherein the second heat source supply device includes a second heat transfer medium circulation line circulating the second heat medium and having the trim heater; A second heat exchanger for transferring a heat source to the second heat medium; And the compressor.

Specifically, the heating medium first circulation line is provided in the order of the heating medium pump, the first heat exchanger, and the vaporizer, and the heating medium second circulation line is disposed in the order of the second heat exchanger, the compressor, In order.

A liquefied gas supply line connecting the liquefied gas storage tank and the demander; A feeding pump provided on the liquefied gas supply line; A suction drum which is provided on the liquefied gas supply line and supplies the liquefied gas from the feeding pump to temporarily store the liquefied gas; And a booster pump that receives the liquefied gas from the suction drum and pressurizes the liquefied gas at a high pressure to supply it to the vaporizing unit.

Specifically, an evaporative gas compressor for pressurizing evaporative gas generated in the liquefied gas storage tank; And a power generation engine that generates power by being supplied with the evaporated gas pressurized from the evaporative gas compressor.

Specifically, the first heating medium may be glycol water, and the second heating medium may be propane.

Specifically, it may be a vessel characterized by including the gas regeneration system.

The gas regeneration system according to the present invention and the ship including the same have the effect of maximizing the regeneration efficiency of the liquefied gas.

1 is a conceptual view of a ship having a gas regeneration system according to an embodiment of the present invention.
2 is a conceptual diagram of a gas regeneration system according to an embodiment of the present invention.
3 is a conceptual diagram of a gas regeneration system according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The objects, particular advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Hereinafter, the liquefied gas may be used to encompass all gaseous fuels generally stored in a liquid state, such as LNG or LPG, ethylene, ammonia, etc. In the case where the gas is not in a liquid state by heating or pressurization, . This also applies to the evaporative gas. In addition, LNG can be used to encompass both NG (natural gas), which is a liquid state, and NG, which is a supercritical state for the sake of convenience. The LNG may be used to mean not only a gas state evaporation gas but also a liquefied evaporation gas .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual view of a ship having a gas regeneration system according to an embodiment of the present invention.

1, a ship 1 having a gas regeneration system 2, 3 includes a liquefied gas storage tank 10, a feeding pump 20, a boosting pump 21, a suction drum 30 A vaporizer 40, an evaporative gas compressor 50, a first consumer 61, and a second consumer 62.

The ship 1 equipped with the gas regeneration systems 2 and 3 here has a hull H composed of a bow portion (not shown), a stern portion (not shown), and an upper deck (not shown) And the propeller shaft S is transmitted to the propeller P and operated by operating the power produced by the engine E of the engine room (not shown) disposed at the stern.

The vessel 1 is also provided with a liquefied gas recovery system 2 or 3 provided with a gas regeneration system 2 or 3 in the liquefied gas carrier 1 in order to regenerate the liquefied gas at sea and supply the liquefied gas to the land terminal (LNG RV) or a floating liquefied gas storage and regasification facility (FSRU).

The gas regeneration system 3 according to the embodiment of the present invention will now be described with reference to Fig.

The gas regeneration system (2, 3) according to the embodiment of the present invention extracts the liquefied gas in a liquid state from the liquefied gas storage tank (10) through the feeding pump (20) 21, the liquefied gas is heated and regenerated in the vaporizing unit 40 through a heat source, and the liquefied gas is supplied to the first customer 61. That is, in brief, the gas regeneration system 1 of the present invention regenerates the liquefied gas by using the gasification unit 40 and supplies it to the first demand site 61. At this time, the evaporated gas generated in the liquefied gas storage tank 10 is pressurized by the evaporative gas compressor 50 and supplied to the second customer 62 for processing.

The vaporization unit 40 can indirectly supply seawater from the seawater supply device (not shown) and regenerate the liquefied gas. (Indirect regeneration system: the intermediate fruit is supplied with the heat source of seawater from the seawater heat exchanger , And a method in which the intermediate fruit is supplied again to the vaporizing unit 40 with the heat source supplied from the seawater)

It should be noted that in all the embodiments of the present invention, the indirect regeneration method will be described on the basis of the indirect regeneration method, which is for convenience of explanation, and is not particularly limited in the present invention.

Prior to describing the individual configurations of the gas regeneration systems 2 and 3 according to the embodiments of the present invention, the basic flow paths for organically connecting the individual structures will be described. Here, the passage is a passage through which the fluid flows, and may be a line. However, the present invention is not limited thereto.

In the embodiment of the present invention, the liquefied gas first supply line L1, the liquefied gas second supply line L2, and the evaporation gas supply line L3 may be further included. Valves (not shown), which are adjustable in opening degree, may be installed in each line, and the supply amount of the evaporation gas or liquefied gas may be controlled according to the opening degree of each valve.

The liquefied gas first supply line L1 connects the liquefied gas storage tank 10 and the suction drum 30 and has a feeding pump 20 to supply the liquefied gas stored in the liquefied gas storage tank 10 to the feeding pump 10, To the suction drum (30) through the suction port (20). At this time, the liquefied gas first supply line L1 may be connected to the suction drum 30 and may be branched at the upstream of the suction drum 30 and directly connected to the liquefied gas second supply line L2.

The liquefied gas second supply line L2 is connected to the suction drum 30 and the first consumer 61 and has a booster pump 21 and a vaporizer 40 so that the liquefied gas is supplied to the suction drum 30, The liquefied gas directly supplied from the gas or liquefied gas first supply line L 1 can be pressurized by the booster pump 21 and regenerated by the gasification unit 40 to be supplied to the first customer 61.

The evaporation gas supply line L3 connects the liquefied gas storage tank 10 and the second consumer site 62 and includes an evaporative gas compressor 50 to supply the evaporated gas generated in the liquefied gas storage tank 10 And can be supplied to the second customer 62 by being pressurized by the evaporative gas compressor 50.

Hereinafter, the individual configurations of the gas regeneration system 1 that are organically formed by the above-described respective lines L1 to L3 will be described.

The liquefied gas storage tank 10 stores liquefied gas to be supplied to the first customer 61. The liquefied gas storage tank 10 must store the liquefied gas in a liquid state, at which time the liquefied gas storage tank 10 may have the form of a pressure tank.

Here, the liquefied gas storage tank 10 is disposed inside the hull H, and four liquefied gas storage tanks 10 may be formed in front of the engine room. In addition, the liquefied gas storage tank 10 is not particularly limited to various types such as a membrane-type tank or an independent tank, for example.

The feeding pump 20 is provided on the liquefied gas first supply line L1 and is provided inside or outside the liquefied gas storage tank 10 to supply the liquefied gas stored in the liquefied gas storage tank 10 to the suction drum 30).

Specifically, the feeding pump 20 is provided between the liquefied gas storage tank 10 and the suction drum 30 on the liquefied gas first supply line L 1 to store the liquefied gas stored in the liquefied gas storage tank 10 And can be firstly pressurized and supplied to the suction drum 30.

The feeding pump 20 can pressurize the liquefied gas stored in the liquefied gas storage tank 10 to 6 to 8 bar and supply it to the suction drum 30. [ Here, the feeding pump 20 may pressurize the liquefied gas discharged from the liquefied gas storage tank 10 so that the pressure and the temperature may be somewhat higher, and the pressurized liquefied gas may still be in a liquid state.

In this case, the feeding pump 20 may be a submergible pump when it is provided inside the liquefied gas storage tank 10 and may be a pump that is stored in the liquefied gas storage tank 10 when it is installed outside the liquefied gas storage tank 10. May be provided at a position inside the hull (H) lower than the level of the liquefied gas and may be a centrifugal pump.

The boosting pump 21 may be provided between the suction drum 30 and the evaporator 40 on the liquefied gas second supply line L2 and may be provided between the liquefied gas supplied from the feeding pump 20 or the suction drum 30 may be supplied to the vaporization unit 40 by pressurizing the liquefied gas at 80 to 120 bar.

The boosting pump 21 can pressurize the liquefied gas in accordance with the pressure demanded by the first customer 61 and can be constituted by a centrifugal pump.

The suction drum 30 is connected to the liquefied gas first supply line L1 and can receive the liquefied gas from the liquefied gas storage tank 10 and temporarily store the liquefied gas.

Specifically, the suction drum 30 can receive the liquefied gas stored in the liquefied gas storage tank 10 from the feeding pump 20 through the liquefied gas first supply line L1, The liquefied gas can be separated into a liquid phase and a vapor phase by storage, and the separated liquid phase can be supplied to the boosting pump 21.

That is, the suction drum 30 temporarily stores the liquefied gas to separate the liquid phase and the vapor phase, and supplies the complete liquid phase to the boosting pump 21 so that the boosting pump 21 satisfies the effective suction head NPSH , Thereby preventing cavitation in the boosting pump (21).

The vaporizing section 40 is provided on the liquefied gas second supply line L2 to regenerate the high-pressure liquefied gas discharged from the booster pump 21.

Specifically, the gasification unit 40 is provided on the liquefied gas second supply line L2 between the first customer 61 and the boosting pump 21 and is composed of the vaporizer 41 and the heater 42, The high-pressure liquefied gas supplied from the pump 21 can be vaporized through the vaporizer 41 and then heated to the desired temperature by the first customer 61 through the heater 42 and supplied to the first customer 61.

Referring to FIG. 2, the gasification unit 40 in the gas treatment system 2 according to an embodiment of the present invention will be described in detail.

2 is a conceptual diagram of a gas regeneration system according to an embodiment of the present invention.

2, the vaporization unit 40 in the gas regeneration system 2 according to the embodiment of the present invention includes a vaporizer 41, a trim heater 42, a first heating medium circulation line GL1 A first heat medium pump 401, a first heat exchanger 402, a second heat exchanger 403, and a compressor 404.

Hereinafter, the configuration of the vaporizer 40 excluding the vaporizer 41 and the heater 42 may be referred to as a heat source supply device. Specifically, the vaporizer 41, the first heat medium pump 401, The first heat source supply device, the trim heater 42, the second heat exchanger 403, and the compressor 404 may be referred to as a second heat source supply device.

The vaporizing unit 40 supplies the gas to the vaporizer 41 or the heater 42 and supplies the heat to the glycolic water as the heat source circulating the first heat medium circulation line GL1, Propane may be used as a heat source circulating through the glass tube GL2.

2, the vaporization unit 40 in the gas regeneration system 2 according to an embodiment of the present invention receives the first heat medium through the first heat source circulation line GL1, And the second heating medium is supplied through the second heat source circulation line GL2 to heat the liquefied gas to a temperature required by the first customer 61 by the trim heater 42, The vaporized liquefied gas at a high pressure can be supplied to the first customer 61 without pressure fluctuation.

Here, the first heat medium and the second heat medium which are heat-exchanged with the liquefied gas are circulated again through the first heat source circulation line GL1 and the second heat source circulation line GL2, respectively.

A specific configuration is as follows.

The first heat medium circulation line GL1 includes a vaporizer 41, a first heat medium pump 401 and a first heat exchanger 402. The first heat medium circulation line GL1 includes a vaporizer 41, a first heat medium pump 401, Gt; 402 < / RTI >

The first heat medium pump 401 is provided between the vaporizer 41 on the first heat medium circulation line GL1 and the first heat exchanger 402 and circulates the first heat medium on the first heat medium circulation line GL1 .

The first heat medium pump 401 may receive the first heat medium cooled from the vaporizer 41 and supply the first heat medium to the first heat exchanger 402. The first heat medium pump 401 may be, for example, a centrifugal pump.

The first heat exchanger 402 is provided between the first heat medium pump 401 and the vaporizer 41 on the first heat medium circulation line GL1 and is connected to the first seawater pump SWP1 on the first seawater line SWL1, The first heat medium can be heated by receiving the seawater.

Here, the first heat exchanger (402) is supplied with a large amount of seawater to heat the first heat medium to substantially vaporize the liquefied gas.

The second heat medium circulation line GL2 includes a trim heater 42, a second heat exchanger 403 and a compressor 404. The second heat medium circulation line GL2 includes a trim heater 42, a second heat exchanger 403, . ≪ / RTI >

The second heat exchanger 403 is provided between the trim heater 42 and the compressor 404 on the second heat medium circulation line GL2 and is provided by the second seawater pump SWP2 on the second seawater line SWL2 The second heat medium can be heated by receiving the seawater.

The compressor 404 is provided between the second heat exchanger 403 and the trim heater 42 on the second heat medium circulation line GL2 and can supply the compressed heat to the trim heater 42 by compressing the second heat medium, 2 heating medium can be circulated on the second heat medium circulation line GL2.

The compressor 404 may supply the vaporized second heat medium from the second heat exchanger 403 to the trim heater 42, and may be a compressor, for example.

The compressor 404 is provided downstream of the second heat exchanger 403 to receive the vaporized second heat medium by receiving the heat source from the seawater and pressurizes the supplied vaporized second heat medium to supply the vaporized second heat medium to the trim heater 42 ).

That is, in the present invention, since the pressurization of the second heat medium is performed after the heat exchange with the seawater, the vaporized second heat medium can be supplied to the trim heater 42 so as to heat-exchange the vaporized state with the liquefied gas, 42), there is an effect that the use of latent heat is enabled, and the circulation demand amount of the entire second heat medium is reduced.

In addition, the compressor consumes a lot of energy for the pressurization compared to the pump, but it can reduce the disadvantages by minimizing the flow rate required by the trim heaters, and since the consumed energy is used to raise the temperature of the fluid, It has the effect of reducing the CAPEX of the trim heater.

Further, in the embodiment of the present invention, the vaporizing section 40 does not vaporize and heat the liquefied gas with one heating medium but includes a separate heating medium in each of the vaporizer 41 and the trim heater 42 The first heat source supply device and the second heat source supply device) The liquid phase single phase heating medium is circulated in the vaporizer 41 and the phase change heat medium which is phase-changed into the gas phase and the liquid phase circulates in the trim heater.

Thus, in the embodiment of the present invention, it is possible to easily control the phase-change heat medium (minimizing the equipment in which the phase-change heat medium flows), thereby improving the control ability of the regeneration system.

3 is a conceptual diagram of a gas regeneration system according to another embodiment of the present invention.

3, the vaporization unit 40 in the gas regeneration system 3 according to another embodiment of the present invention includes a vaporizer 41, a trim heater 42, a first heating medium circulation line GL1 A first heat medium pump 401, a first heat exchanger 402, a second heat exchanger 403, and a second heat medium pump 405. The second heat medium pump GL2, the heat medium second circulation line GL2, the first heat medium pump 401,

The vaporization section 40 in the gas regeneration system 3 according to another embodiment of the present invention is similar to the vaporization section 40 in the gas regeneration system 2 according to the embodiment of the present invention shown in FIG. And the compressor 404, the same reference numerals are used for convenience of description and the like, but they are not necessarily referred to as the same constructions.

Hereinafter, the vaporizing section 40 supplies heat to the vaporizer 41 or the heater 42, and uses Glycol Water or propane as the heat source circulating the first and second heat medium circulation lines GL1 and GL2, (Propane) may be used.

Hereinafter, the configuration of the second heat medium pump 405 will be described in detail.

The second heat medium pump 405 is provided between the trim heater 42 and the second heat exchanger 403 on the second heat medium circulation line GL2 and the second heat medium is provided on the second heat medium circulation line GL2 Can be circulated.

The second heat medium pump 405 may supply the second heat medium cooled by the trim heater 42 to the second heat exchanger 403, and may be, for example, a centrifugal pump.

In the embodiment of the present invention, the vaporizing section 40 does not vaporize and heat the liquefied gas with one heating medium but includes a separate heating medium in each of the vaporizer 41 and the trim heater 42 The heat source supply device and the second heat source supply device), the operation of the vaporizer 41 and the trim heater 42 having different operating conditions can be easily controlled.

In the embodiment of the present invention, for example, the first heat medium circulation line (GL1) can utilize latent heat by using propane to improve the vaporization rate of the liquefied gas, and the second heat medium circulation line (GL2) The use of glycol water, which is a high and safe material, has the effect of increasing the safety of the system and increasing the driving reliability.

That is, there is an effect that the operation conditions are individually controlled to the carburetor 41 and the trim heater 42, which are the heating devices of the vaporization part 40, so that optimized control according to the situation of each device becomes possible.

The evaporative gas compressor (50) can pressurize the evaporated gas generated in the liquefied gas storage tank (10) and supply it to the second customer (62).

Specifically, the evaporative gas compressor 50 is provided on the evaporation gas supply line L3 to pressurize the evaporation gas generated in the liquefied gas storage tank 10 to about 6 to 8 bar or 6 to 15 bar, 62, respectively.

A plurality of evaporation gas compressors 50 may be provided to press the evaporation gas at multiple stages. For example, three evaporation gas compressors 50 may be provided to pressurize the evaporation gas at three stages. The example three-stage compressor is only one example and is not limited to the three stages.

In the embodiment of the present invention, an evaporative gas cooler (not shown) may be provided at each rear end of the evaporative gas compressor 50. When the evaporation gas is pressurized by the evaporation gas compressor 50, the temperature can also be raised according to the pressure increase. Therefore, in this embodiment, the evaporation gas cooler can be used to lower the temperature of the evaporation gas again. The evaporative gas cooler may be installed in the same number as the evaporative gas compressor 50, and each evaporative gas cooler may be provided downstream of each evaporative gas compressor 50.

Further, in the embodiment of the present invention, when the evaporation gas compressor 50 is provided in parallel and the amount of the evaporation gas generated in the liquefied gas storage tank 10 rapidly increases, When one of the evaporator 50 and the evaporator 50 malfunctions or shut down, the other evaporator gas compressor 50 can be operated to efficiently receive and process the evaporated gas generated in the liquefied gas storage tank 10 .

The first consumer 61 can supply and consume the liquefied gas vaporized by the vaporizing unit 40. Here, the first customer 61 may be a land terminal installed on the land, or a marine terminal floated on the sea, by vaporizing the liquefied gas and supplying and using the gaseous liquefied gas.

The second customer 62 uses the evaporated gas generated from the liquefied gas storage tank 10 as a fuel. That is, the second customer 62 needs evaporation gas and can be driven using the gas as a raw material. The second customer 62 may be, but is not limited to, a generator (e.g., DFDG), a gas-fired unit (GCU), a boiler (e.g.

Specifically, the second customer 62 is connected to the evaporation gas supply line L3 to receive the evaporation gas, and the evaporation gas compressed by the evaporation gas compressor 50 at a low pressure of about 1 to 6 bar (maximum 15 bar) It can be used as fuel.

In addition, the second customer 62 may be a heterogeneous fuel engine capable of using a heterogeneous fuel, so that not only evaporation gas but also oil can be used as the fuel. However, when the evaporation gas and the oil are not mixed and supplied, As shown in FIG. This is to prevent the mixture of two materials having different combustion temperatures from being mixed, thereby preventing the efficiency of the second customer 62 from deteriorating.

Here, the second customer 62 may be provided on a deck (not shown) of the engine room provided inside the stern section.

As described above, the ship 1 having the gas regeneration system 2, 3 according to the present invention has the effect of maximizing the regeneration efficiency of the liquefied gas.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that the modification and the modification are possible.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1: vessel 2, 3: gas regeneration system of the present invention
10: liquefied gas storage tank 20: feeding pump
21: boosting pump 30: suction drum
40: vaporizer 41: vaporizer
42: Trim heater
401: first heat medium pump
402: first heat exchanger
403: second heat exchanger
404: Compressor
405: second heat medium pump
50: Evaporative gas compressor
61: First customer
62: The second customer
L 1: Liquefied gas first supply line
L2: Liquefied gas second supply line
L3: Evaporative gas supply line
GL1: Heat transfer first circulation line
GL2: Heat medium second circulation line
SWL1: 1st seawater line
SWL2: Second seawater line
SWP1: First seawater pump
SWP2: Second Seawater Pump

Claims (9)

A vaporizer including a vaporizer for vaporizing the liquefied gas stored in the liquefied gas storage tank and a trim heater for heating the liquefied gas vaporized from the vaporizer to supply it to a customer; And
And a heat source supply device for transferring the heat medium to be heat-exchanged with the liquefied gas to the vaporization unit,
Wherein the heat source supply device comprises:
And a compressor which compresses the heating medium in the vapor phase and supplies the compressed heat medium to the trim heater. The method according to claim 1,
And a heat source heat exchanger for transmitting a heat source to the heat medium,
The compressor includes:
Wherein the heat exchanger is provided downstream of the heat source heat exchanger. The heat source apparatus according to claim 1,
A first heat source supply device for supplying a first heat medium as a heat source to the vaporizer; And
And a second heat source supply device for supplying a second heat medium as a heat source to the trim heater. 4. The apparatus according to claim 3, wherein the first heat source supply device comprises:
A first heating medium circulation line circulating the first heating medium and having the vaporizer;
A heating medium pump provided on the heating medium first circulation line for pressurizing the first heating medium in a liquid phase to supply the liquid to the vaporizer; And
And a first heat exchanger for transferring a heat source to the first heat medium,
Wherein the second heat source supply device comprises:
A heating medium second circulation line circulating the second heating medium and having the trim heater;
A second heat exchanger for transferring a heat source to the second heat medium; And
Wherein said compressor comprises said compressor. 5. The method according to claim 4, wherein the heating medium first circulation line comprises:
The heat pump, the first heat exchanger, and the vaporizer in this order,
The heating medium second circulation line includes:
The second heat exchanger, the compressor, and the trim heater in this order. The method according to claim 1,
A liquefied gas supply line connecting the liquefied gas storage tank and the demander;
A feeding pump provided on the liquefied gas supply line;
A suction drum which is provided on the liquefied gas supply line and supplies the liquefied gas from the feeding pump to temporarily store the liquefied gas; And
Further comprising a boosting pump which is supplied with the liquefied gas from the suction drum and pressurizes the liquefied gas at a high pressure to supply it to the vaporizing unit. The method according to claim 6,
An evaporative gas compressor for pressurizing the evaporative gas generated in the liquefied gas storage tank; And
Further comprising a power generation engine for generating power by receiving the pressurized evaporated gas from the evaporative gas compressor. The method of claim 3,
Wherein the first heating medium is glycol water,
And said second heating medium is propane. 9. A vessel comprising the gas regeneration system of any one of claims 1-8.

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