KR20120096807A - Testing method of lng fpso - Google Patents

Testing method of lng fpso Download PDF

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KR20120096807A
KR20120096807A KR1020110016134A KR20110016134A KR20120096807A KR 20120096807 A KR20120096807 A KR 20120096807A KR 1020110016134 A KR1020110016134 A KR 1020110016134A KR 20110016134 A KR20110016134 A KR 20110016134A KR 20120096807 A KR20120096807 A KR 20120096807A
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South Korea
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natural gas
liquefied natural
storage tank
liquefied
module
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KR1020110016134A
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Korean (ko)
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KR101271207B1 (en
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진종운
염구섭
맹승범
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삼성중공업 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J99/00—Subject matter not provided for in other groups of this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J99/00—Subject matter not provided for in other groups of this subclass
    • B63J2099/001—Burning of transported goods, e.g. fuel, boil-off or refuse
    • B63J2099/003—Burning of transported goods, e.g. fuel, boil-off or refuse of cargo oil or fuel, or of boil-off gases, e.g. for propulsive purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0146—Two-phase
    • F17C2225/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2225/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/03—Treating the boil-off
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

PURPOSE: A method for running an LNG FPSO(Liquefied Natural Gas Floating Production Storage Offloading) on trial is provided to reduce costs for building a ship by testing whether a liquefaction module normally liquefies natural gas or not without an expensive high pressure pump and a high pressure evaporator. CONSTITUTION: A method for running an LNG FPSO(100) on trial is as follows. LNG is supplied from an external facility to a first storage tank(110). BOG(Boil-Off Gas) generating in the supply of the LNG is supplied to a liquefaction module(120). The supplied BOG is liquefied in the liquefaction module.

Description

부유식 액화천연가스생산 저장설비의 시운전 방법{TESTING METHOD OF LNG FPSO}Commissioning method of floating LNG production storage facility {TESTING METHOD OF LNG FPSO}

본 발명은 부유식 액화천연가스생산 저장설비의 시운전 방법에 관한 것이다.
The present invention relates to a method for commissioning a floating liquefied natural gas production storage facility.

액화천연가스(LNG)는 천연가스를 비등점(-160℃) 이하로 냉각시켜 만든다. 액화천연가스는 천연가스에 비해 부피가 작으므로 운반하기 쉽다. 따라서, 대부분의 선박들은 천연가스를 액화천연가스로 만든 후 액체 상태의 액화천연가스를 운반하게 된다.Liquefied natural gas (LNG) is produced by cooling natural gas below its boiling point (-160 ° C). Liquefied natural gas is easier to transport because it is smaller in volume than natural gas. Therefore, most ships convert natural gas into liquefied natural gas and then carry the liquid liquefied natural gas.

최근에는 천연가스를 생산하고, 생산된 천연가스를 액화한 후 액화된 천연가스를 저장까지 할 수 있는 부유식 액화천연가스생산 저장설비 (LNG FPSO: LNG Floating Production Storage Offloading)가 제조되고 있다.Recently, LNG Floating Production Storage Offloading (LNG FPSO) has been manufactured to produce natural gas, liquefy the produced natural gas, and even store the liquefied natural gas.

부유식 액화천연가스생산 저장설비의 건조가 완료되면 부유식 액화천연가스생산 저장설비에 구비된 각종 장비는 작동이 잘 되는지를 테스트(시운전)받게 된다.After the drying of the floating LNG production and storage facility is completed, the various equipments provided in the floating LNG production and storage facility are tested (tested) for good operation.

특히, 부유식 액화천연가스생산 저장설비에 탑재된 액화모듈이 천연가스를 정상적으로 액화시키는 지를 테스트하기 위해, 부유식 액화천연가스생산 저장설비의 저장탱크에 일부 채워진 액화천연가스를 사용한다. 저장탱크에 채워진 액화천연가스를 별도의 고압펌프로 펌핑하고 펌핑된 증발가스를 고압증발기를 이용하여 기화시킨 후 액화모듈에서 액화되는지 여부를 테스트한다.In particular, in order to test whether the liquefied module mounted in the floating LNG production storage facility liquefied natural gas normally, the liquefied natural gas partially filled in the storage tank of the floating LNG production storage facility is used. The liquefied natural gas filled in the storage tank is pumped with a separate high pressure pump, and the vaporized pumped evaporation gas is liquefied using a high pressure evaporator and tested for liquefaction in the liquefaction module.

테스트를 위해 고압펌프 및 고압증발기가 부유식 액화천연가스생산 저장설비에 설치되어 있으나, 고압펌프 및 고압증발기 등은 시운전을 위해 이용된 후 사용되지 않아 낭비를 발생한다.
High-pressure pumps and high-pressure evaporators are installed in floating LNG production and storage facilities for testing. However, high-pressure pumps and high-pressure evaporators are not used after commissioning, resulting in waste.

본 발명의 실시예들은 테스트에 이용되는 고압펌프 및 고압증발기 등을 생략하여 고가의 장비 낭비를 방지하며, 부유식 액화천연가스생산 저장설비의 제조원가를 절감하고자 한다.
Embodiments of the present invention to avoid expensive equipment waste by omitting the high-pressure pump and high-pressure evaporator used in the test, and to reduce the manufacturing cost of the floating liquefied natural gas production storage facility.

본 발명의 일 측면에 따르면, 외부로부터 유입된 천연가스를 액화시키는 액화모듈과, 상기 액화모듈에 의해 생성된 액화천연가스를 저장하는 제1 저장탱크를 포함하는 부유식 액화천연가스생산 저장설비의 시운전 방법에 있어서, 외부설비로부터 상기 제1 저장탱크로 액화천연가스를 공급하는 단계; 상기 제1 저장탱크로 액화천연가스를 공급하는 단계에서 발생하는 증발가스(Boil-Off Gas)를 상기 액화모듈로 공급하는 단계; 및 공급된 증발가스를 상기 액화모듈에서 액화하는 단계를 포함하는 부유식 액화천연가스생산 저장설비의 시운전 방법이 제공될 수 있다.According to one aspect of the invention, the liquefied module for liquefying natural gas introduced from the outside of the floating liquefied natural gas production storage facility comprising a first storage tank for storing the liquefied natural gas generated by the liquefied module A commissioning method, comprising: supplying liquefied natural gas from an external facility to the first storage tank; Supplying a boil-off gas generated in the supply of liquefied natural gas to the first storage tank to the liquefaction module; And it may be provided a method of commissioning a floating liquefied natural gas production storage facility comprising the step of liquefying the supplied evaporated gas in the liquefaction module.

또한, 상기 액화모듈에 의해 액화된 증발가스를 상기 제1 저장탱크로 공급하는 단계를 더 포함할 수 있다.The method may further include supplying the boil-off gas liquefied by the liquefaction module to the first storage tank.

또한, 상기 액화모듈로 공급되는 증발가스의 일부가 상기 액화모듈에 전력을 공급하는 전력모듈의 연로로 사용될 수 있다.In addition, a part of the boil-off gas supplied to the liquefaction module may be used as a fuel of the power module for supplying power to the liquefaction module.

또한, 상기 외부설비는 상기 제1 저장탱크로 공급되는 액화천연가스를 저장하는 제2 저장탱크를 포함할 수 있다.In addition, the external equipment may include a second storage tank for storing the liquefied natural gas supplied to the first storage tank.

또한, 상기 외부설비는 액화천연가스 운반선을 포함할 수 있다.
In addition, the external equipment may include a liquefied natural gas carrier.

본 발명의 실시예들은 액화모듈의 테스트를 위한 고가의 고압펌프 및 고압증발기를 별도로 구비하지 않고도 액화모듈(120)이 천연가스를 정상적으로 액화시키는지 여부를 테스트할 수 있음으로써 선박 건조의 비용을 낮출 수 있다.
Embodiments of the present invention can test whether the liquefaction module 120 liquefied natural gas normally without having to provide an expensive high pressure pump and a high-pressure evaporator for testing the liquefaction module, thereby lowering the cost of shipbuilding. Can be.

도 1은 본 발명의 일 실시예에 따른 부유식 액화천연가스생산 저장설비를 대략적으로 설명하기 위한 도면.
도 2는 본 발명의 일 실시예에 따른 부유식 액화천연가스생산 저장설비의 시운전 방법을 도시한 순서도.1 is a view for explaining the floating liquefied natural gas production storage facility according to an embodiment of the present invention.
Figure 2 is a flow chart illustrating a test run method of a floating liquefied natural gas production storage facility according to an embodiment of the present invention.

본 발명은 다양한 변환을 가할 수 있고 여러 가지 실시예를 가질 수 있는 바, 특정 실시예들을 도면에 예시하고 상세한 설명에 상세하게 설명하고자 한다. 그러나, 이는 본 발명을 특정한 실시 형태에 대해 한정하려는 것이 아니며, 본 발명의 사상 및 기술 범위에 포함되는 모든 변환, 균등물 내지 대체물을 포함하는 것으로 이해되어야 한다. 본 발명을 설명함에 있어서 관련된 공지 기술에 대한 구체적인 설명이 본 발명의 요지를 흐릴 수 있다고 판단되는 경우 그 상세한 설명을 생략한다.BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

이하, 본 발명에 부유식 액화천연가스생산 저장설비의 시운전 방법의 실시예를 첨부도면을 참조하여 상세히 설명하기로 하며, 첨부 도면을 참조하여 설명함에 있어, 동일하거나 대응하는 구성 요소는 동일한 도면번호를 부여하고 이에 대한 중복되는 설명은 생략하기로 한다.
Hereinafter, with reference to the accompanying drawings, an embodiment of a test operation method of a floating liquefied natural gas production storage facility in the present invention will be described in detail with reference to the accompanying drawings, the same or corresponding components are the same reference numerals. And duplicate description thereof will be omitted.

도 1은 본 발명의 일 실시예에 따른 부유식 액화천연가스생산 저장설비를 대략적으로 설명하기 위한 도면이고, 도 2는 본 발명의 일 실시예에 따른 부유식 액화천연가스생산 저장설비의 시운전 방법을 도시한 순서도이다.1 is a view for explaining the floating liquefied natural gas production storage facility according to an embodiment of the present invention, Figure 2 is a test operation method of the floating liquefied natural gas production storage facility according to an embodiment of the present invention Is a flow chart illustrating.

도 1을 참조하면, 시운전 대상인 부유식 액화천연가스생산 저장설비(100), 제1 저장탱크(110), 액화모듈(120), 전력모듈(130), 외부설비(50), 제2 저장탱크(51)가 도시된다. Referring to FIG. 1, a floating liquefied natural gas production storage facility 100, a first storage tank 110, a liquefaction module 120, a power module 130, an external facility 50, and a second storage tank that is a test operation target 51 is shown.

부유식 액화천연가스생산 저장설비(100)는 외부로부터 유입된 천연가스를 액화시키는 액화모듈(120)과, 액화모듈(120)에 의해 생성된 액화천연가스를 저장하는 제1 저장탱크(110)를 포함한다. Floating liquefied natural gas production storage facility 100 is a liquefaction module 120 for liquefying natural gas introduced from the outside, and the first storage tank 110 for storing the liquefied natural gas generated by the liquefaction module 120 It includes.

도 1 및 도 2를 참조하여 부유식 액화천연가스생산 저장설비(100)의 시운전 방법을 설명하도록 한다. With reference to Figures 1 and 2 will be described the test operation of the floating liquefied natural gas production storage facility (100).

먼저, 외부설비(50)로부터 제1 저장탱크(110)로 액화천연가스를 공급한다(S110). 외부설비(50)는 제1 저장탱크(110)로 공급되는 액화천연가스를 저장하는 제2 저장탱크(51)를 포함한다. First, the liquefied natural gas is supplied from the external facility 50 to the first storage tank 110 (S110). The external facility 50 includes a second storage tank 51 for storing liquefied natural gas supplied to the first storage tank 110.

외부설비(50)는 도 1에서 알 수 있는 바와 같이 액화천연가스 운반선(LNG Carrier)일 수 있다. 또한, 외부설비는 도시되지는 않았으나 제2 저장탱크를 포함하는 육상 또는 해상 설비일 수 있다.The external facility 50 may be a LNG carrier (LNG Carrier) as can be seen in FIG. In addition, the external facility may be an onshore or offshore facility including a second storage tank, although not shown.

부유식 액화천연가스생산 저장설비(100)와 외부설비(50)는 외부와 연결되는 배관(151, 53)을 포함한다. 이들 배관(151, 53)은 로딩암(loading arm; L)에 의해 상호연결될 수 있다. 이에 따라 외부설비(50)로부터 부유식 액화천연가스생산 저장설비(100)에 액화천연가스를 공급할 수 있다. 이 때, 외부설비(50)에는 펌프(미도시)가 구비되어 제2 저장탱크(51) 내의 액화천연가스를 펌핑하여 제1 저장탱크(110)로 공급할 수 있다.Floating liquefied natural gas production storage facility 100 and the external facility 50 includes pipes (151, 53) connected to the outside. These tubing 151, 53 may be interconnected by a loading arm (L). Accordingly, the liquefied natural gas can be supplied from the external facility 50 to the floating liquefied natural gas production storage facility 100. At this time, the external facility 50 may be provided with a pump (not shown) to pump the liquefied natural gas in the second storage tank 51 and supply it to the first storage tank 110.

액화천연가스가 배관(53, 151)을 통해 제2 저장탱크(51)에서 제1 저장탱크(110)로 이동하는 과정에서 배관(53, 151)의 형상 변화 등에 의한 압력변화 또는 주변과의 열교환에 의해 증발가스(Boil-Off Gas; BOG)가 발생된다. 증발가스와 천연가스는 통상적으로 동일한 성분으로 이루어진다. 이와 같이 발생된 증발가스는 액화천연가스와 함께 제1 저장탱크(110)에 저장된다.In the process of liquefied natural gas moving from the second storage tank 51 to the first storage tank 110 through the pipes 53 and 151, a pressure change due to a shape change of the pipes 53 and 151 or heat exchange with the surroundings By the boil-off gas (BOG) is generated. Evaporative gas and natural gas usually consist of the same components. The evaporated gas generated in this way is stored in the first storage tank 110 together with the liquefied natural gas.

다음으로, 제1 저장탱크(110)로 액화천연가스를 공급하는 과정에서 발생하는 증발가스는 액화모듈(120)로 공급된다(S120). 액화천연가스와 증발가스가 제1 저장탱크(110)에 채워지면 증발가스에 의해 제1 저장탱크(110)내의 압력은 자연적으로 상승하게 된다. 제1 저장탱크(110)내의 압력상승으로 제1 저장탱크(110)와 액화모듈(120)을 연결하는 공급관(153)을 통해 증발가스는 액화모듈(120)로 공급될 수 있다.Next, the boil-off gas generated in the process of supplying the liquefied natural gas to the first storage tank 110 is supplied to the liquefaction module 120 (S120). When the liquefied natural gas and the boil-off gas are filled in the first storage tank 110, the pressure in the first storage tank 110 is naturally increased by the boil-off gas. As the pressure rises in the first storage tank 110, the boil-off gas may be supplied to the liquefaction module 120 through a supply pipe 153 connecting the first storage tank 110 and the liquefaction module 120.

이와 달리, 제1 저장탱크(110)에 별도의 펌프(미도시)를 설치하여 증발가스를 강제적으로 액화모듈(120)로 강제적으로 공급할 수 있음은 물론이다.On the contrary, of course, a separate pump (not shown) may be installed in the first storage tank 110 to forcibly supply the boil-off gas to the liquefaction module 120.

또한, 제1 저장탱크(110)와 액화모듈(120)을 연결하는 공급관(153)상에는 제1 저장탱크(110) 내의 증발가스를 압축하는 압축기(140)가 구비될 수도 있다. 압축기(140)에 의해 증발가스를 압축하여 액화모듈(120)로 공급할 수도 있다. In addition, a compressor 140 may be provided on the supply pipe 153 connecting the first storage tank 110 and the liquefaction module 120 to compress the boil-off gas in the first storage tank 110. Compressed gas may be compressed by the compressor 140 and supplied to the liquefaction module 120.

이와 같은 본 실시예에 따르면, 종래기술과 달리 테스트 만을 위해 이용되는 고압펌프 및 고압증발기를 생략하고, 액화천연가스의 이동 중에 발생된 증발가스를 이용하여 액화모듈(120)이 천연가스를 정상적으로 액화시키는지 여부를 테스트할 수 있다. According to this embodiment, unlike the prior art, the high-pressure pump and the high-pressure evaporator used for testing only, omitting, the liquefaction module 120 liquefied natural gas normally by using the evaporated gas generated during the movement of the liquefied natural gas You can test whether or not.

한편, 공급관(153)을 통해 액화모듈(120)로 공급되는 증발가스의 일부가 액화모듈(120)에 전력을 공급하는 전력모듈(130)의 연료로 사용될 수 있다. 이 경우, 공급관(153)은 도 1에 도시된 바와 같이 전력모듈(130)로 분기될 수 있다. Meanwhile, a part of the boil-off gas supplied to the liquefaction module 120 through the supply pipe 153 may be used as fuel of the power module 130 for supplying power to the liquefaction module 120. In this case, the supply pipe 153 may be branched to the power module 130 as shown in FIG.

전력모듈(130)은 이중연료시스템(Dual Fuel System)을 포함할 수 있다. 이 경우, 액체연료나 기체연료를 모두 사용할 수 있으며, 액체연료는 휘발유, 등유, 경유를 포함할 수 있고, 기체연료는 천연가스 등을 포함할 수 있다.The power module 130 may include a dual fuel system. In this case, both liquid fuel and gaseous fuel may be used, and the liquid fuel may include gasoline, kerosene, diesel, and the gaseous fuel may include natural gas.

전력모듈(130)이 증발가스를 이용하는 경우 별도의 연료가 필요없으므로 에너지 활용도가 상승될 수 있다. When the power module 130 uses the boil-off gas, energy utilization may be increased because no additional fuel is required.

통상적으로 천연가스와 동일한 성분으로 이루어지는 증발가스가 액화되는지 여부를 테스트하기 위해, 증발가스를 액화모듈(120)로 공급한 다음으로, 공급된 증발가스를 액화모듈(120)에서 액화한다(S130). 액화모듈(120)에서 증발가스를 액화시킴으로써 액화모듈(120)의 작동에 따른 결과물을 통해 증발가스의 액화여부를 확인할 수 있다. 이에 따라, 액화모듈(120)의 정상 작동여부를 알 수 있다. 이와 같이, 증발가스를 이용하여 액화모듈(120)을 테스트한다.In order to test whether or not the boil-off gas composed of the same components as the natural gas is usually liquefied, the boil-off gas is supplied to the liquefaction module 120 and then the supplied boil-off gas is liquefied in the liquefaction module 120 (S130). . By liquefying the boil-off gas in the liquefaction module 120 it can be confirmed whether the boil-off gas is liquefied through the result of the operation of the liquefaction module 120. Accordingly, the normal operation of the liquefaction module 120 can be seen. As such, the liquefaction module 120 is tested using the boil-off gas.

다음으로, 액화모듈(120)에 의해 액화된 증발가스를 제1 저장탱크(110)로 공급할 수 있다(S140). 이 경우, 액화모듈(120)에 의해 재액화된 증발가스는 배출관(155)을 통해 제1 저장탱크(110)로 공급되어 저장된다. Next, the boil-off gas liquefied by the liquefaction module 120 may be supplied to the first storage tank 110 (S140). In this case, the boil-off gas re-liquefied by the liquefaction module 120 is supplied to the first storage tank 110 through the discharge pipe 155 and stored.

이와 같은 실시예에 따른 부유식 액화천연가스생산 저장설비의 시운전 방법은 뷰유식 액화천연가스생산 저장설비의 크기가 클수록 액화천연가스를 전달받는 과정에서 증발가스 발생량이 많아져 액화모듈의 테스트 만을 위한 고가의 장비를 별도로 구비하지 않고도 테스트할 수 있음으로써 선박 건조의 비용을 낮출 수 있다.In the trial operation method of the floating liquefied natural gas production storage facility according to this embodiment, the larger the size of the view type liquefied natural gas production storage facility, the greater the amount of boil-off gas in the process of receiving the liquefied natural gas, so that only the test of the liquefied module is performed. The cost of shipbuilding can be lowered by testing without expensive equipment.

이상에서 본 발명의 실시예들에 대하여 설명하였으나, 본 발명의 사상은 본 명세서에 제시되는 실시 예에 제한되지 아니하며, 본 발명의 사상을 이해하는 당업자는 동일한 사상의 범위 내에서, 구성요소의 부가, 변경, 삭제, 추가 등에 의해서 다른 실시 예를 용이하게 제안할 수 있을 것이나, 이 또한 본 발명의 사상범위 내에 든다고 할 것이다.
While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, 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.

100: 부유식 액화천연가스생산 저장설비
110: 제1 저장탱크
120: 액화모듈
130: 전력모듈100: floating liquefied natural gas production storage facility
110: first storage tank
120: liquefaction module
130: power module

Claims (5)

외부로부터 유입된 천연가스를 액화시키는 액화모듈과, 상기 액화모듈에 의해 생성된 액화천연가스를 저장하는 제1 저장탱크를 포함하는 부유식 액화천연가스생산 저장설비의 시운전 방법에 있어서,
외부설비로부터 상기 제1 저장탱크로 액화천연가스를 공급하는 단계;
상기 제1 저장탱크로 액화천연가스를 공급하는 단계에서 발생하는 증발가스(Boil-Off Gas)를 상기 액화모듈로 공급하는 단계; 및
공급된 증발가스를 상기 액화모듈에서 액화하는 단계를 포함하는 부유식 액화천연가스생산 저장설비의 시운전 방법.
In the commissioning method of a floating liquefied natural gas production storage facility comprising a liquefaction module for liquefying natural gas introduced from the outside, and a first storage tank for storing the liquefied natural gas generated by the liquefaction module,
Supplying liquefied natural gas to the first storage tank from an external facility;
Supplying a boil-off gas generated in the supply of liquefied natural gas to the first storage tank to the liquefaction module; And
And liquefying the supplied boil-off gas in the liquefaction module.
제1항에 있어서,
상기 액화모듈에 의해 액화된 증발가스를 상기 제1 저장탱크로 공급하는 단계를 더 포함하는 것을 특징으로 하는 부유식 액화천연가스생산 저장설비의 시운전 방법.
The method of claim 1,
And supplying the boil-off gas liquefied by the liquefaction module to the first storage tank.
제1항 또는 제2항에 있어서,
상기 액화모듈로 공급되는 증발가스의 일부가 상기 액화모듈에 전력을 공급하는 전력모듈의 연료로 사용되는 것을 특징으로 하는 부유식 액화천연가스생산 저장설비의 시운전 방법.
The method according to claim 1 or 2,
A part of the boil-off gas supplied to the liquefied module is used as a fuel of the power module for supplying power to the liquefied module commissioning method of the liquefied natural gas production storage facility.
제1항 또는 제2항에 있어서,
상기 외부설비는 상기 제1 저장탱크로 공급되는 액화천연가스를 저장하는 제2 저장탱크를 포함하는 것을 특징으로 하는 부유식 액화천연가스생산 저장설비의 시운전 방법.
The method according to claim 1 or 2,
The external facility is a commissioning method of a floating liquefied natural gas production storage facility characterized in that it comprises a second storage tank for storing the liquefied natural gas supplied to the first storage tank.
제4항에 있어서,
상기 외부설비는 액화천연가스 운반선을 포함하는 것을 특징으로 하는 부유식 액화천연가스생산 저장설비의 시운전 방법.
The method of claim 4, wherein
The external facility is a commissioning method of a floating liquefied natural gas production storage facility, characterized in that it comprises a liquefied natural gas carrier.
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