KR102055403B1 - 선박용 증발가스 재액화 방법 - Google Patents
선박용 증발가스 재액화 방법 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
- B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
- B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0215—Mixtures of gaseous fuels; Natural gas; Biogas; Mine gas; Landfill gas
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- 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
- F17C6/00—Methods and apparatus for filling vessels not under pressure with liquefied or solidified gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
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- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
- F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
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- B63B2770/00—
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
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- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/01—Propulsion of the fluid
- F17C2227/0128—Propulsion of the fluid with pumps or compressors
- F17C2227/0171—Arrangement
- F17C2227/0185—Arrangement comprising several pumps or compressors
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- 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
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0337—Heat exchange with the fluid by cooling
- F17C2227/0339—Heat exchange with the fluid by cooling using the same fluid
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- 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
- F17C2265/01—Purifying the fluid
- F17C2265/015—Purifying the fluid by separating
- F17C2265/017—Purifying the fluid by separating different phases of a same fluid
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- 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
- F17C2265/031—Treating the boil-off by discharge
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- 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
- F17C2265/032—Treating the boil-off by recovery
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- 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
- F17C2265/032—Treating the boil-off by recovery
- F17C2265/033—Treating the boil-off by recovery with cooling
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- 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
- F17C2265/032—Treating the boil-off by recovery
- F17C2265/037—Treating the boil-off by recovery with pressurising
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- 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
- F17C2265/032—Treating the boil-off by recovery
- F17C2265/038—Treating the boil-off by recovery with expanding
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- 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
- F17C2265/06—Fluid distribution
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- 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
- F17C2265/06—Fluid distribution
- F17C2265/066—Fluid distribution for feeding engines for propulsion
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system
- Y02T70/5218—Less carbon-intensive fuels, e.g. natural gas, biofuels
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Abstract
상기 선박용 증발가스 재액화 방법은, 1) 증발가스를 압축기에 의해 압축시키는 단계; 2) 상기 1)단계에서 압축시킨 증발가스의 일부를 주 엔진으로 보내는 단계; 3) 상기 1)단계에서 압축시킨 증발가스 중 상기 주 엔진으로 보내지지 않은 증발가스를 두 흐름으로 분기시키는 단계; 4) 상기 3)단계에서 두 흐름으로 분기된 증발가스 중 한 흐름(a 흐름)을 제2 감압장치에 의해 감압시키는 단계; 5) 상기 4)단계에서 감압된 유체를 냉매로 사용하여, 상기 3)단계에서 분기된 증발가스 중 나머지 흐름(b 흐름)을 제2 열교환기에 의해 열교환시켜 냉각시키는 단계; 6) 상기 5)단계에서 냉각된 유체에 포함된 윤활유를 걸러내는 단계; 7) 상기 6)단계에서 윤활유가 걸러진 유체를, 상기 1)단계의 압축 과정을 거치기 전의 증발가스를 냉매로 사용하여, 제1 열교환기에 의해 열교환시켜 냉각시키는 단계; 및 8) 상기 7)단계에서 냉각된 유체를 제1 감압장치에 의해 감압시키는 단계;를 포함하고, 상기 4)단계에서 감압된 후 상기 5)단계에서 열교환의 냉매로 사용된 증발가스는 발전기로 보내지며, 상기 1)단계에서 상기 주 엔진의 요구 압력으로 증발가스를 압축시키고, 상기 4)단계에서 상기 발전기의 요구 압력까지 증발가스를 감압시킨다.
Description
도 2는 본 발명의 바람직한 제1 실시예에 따른, 선박용 증발가스 재액화 시스템의 개략적인 구성도이다.
도 3은 본 발명의 바람직한 제2 실시예에 따른, 선박용 증발가스 재액화 시스템의 개략적인 구성도이다.
도 4는 본 발명의 바람직한 제3 실시예에 따른, 선박용 증발가스 재액화 시스템의 개략적인 구성도이다.
도 5는 오일필터를 통과한 증발가스에 섞인 잔류오일의 양을 압축기 온도에 따라 나타낸 그래프이다.
120 : 제2 열교환기 200 : 압축기
210, 220, 230, 240, 250 : 실린더
310, 320, 330, 340, 350 : 냉각기
300 : 오일필터 410 : 제1 감압장치
420 : 제2 감압장치 430 : 제3 감압장치
500 : 기액분리기 600 : 가열기
Claims (20)
- 삭제
- 삭제
- 1) 증발가스를 압축기에 의해 압축시키는 단계;
2) 상기 1)단계에서 압축시킨 증발가스의 일부를 주 엔진으로 보내는 단계;
3) 상기 1)단계에서 압축시킨 증발가스 중 상기 주 엔진으로 보내지지 않은 증발가스를 제2 열교환기에 의해 열교환시켜 냉각시키는 단계;
4) 상기 3)단계에서 냉각된 유체에 포함된 윤활유를 걸러내는 단계;
5) 상기 4)단계에서 윤활유가 걸러진 유체를, 상기 1)단계의 압축 과정을 거치기 전의 증발가스를 냉매로 사용하여, 제1 열교환기에 의해 열교환시켜 냉각시키는 단계;
6) 상기 5)단계에서 냉각된 유체를 두 흐름으로 분기시키는 단계;
7) 상기 6)단계에서 두 흐름으로 분기된 증발가스 중 한 흐름을 제2 감압장치에 의해 감압시키는 단계; 및
8) 상기 6)단계에서 두 흐름으로 분기된 증발가스 중 나머지 흐름을 제1 감압장치에 의해 감압시키는 단계;를 포함하고,
상기 7)단계에서 감압된 유체는, 상기 3)단계에서 열교환의 냉매로 사용된 후 발전기로 보내지며,
상기 1)단계에서 상기 주 엔진의 요구 압력으로 증발가스를 압축시키고,
상기 7)단계에서 상기 발전기의 요구 압력까지 증발가스를 감압시키며,
상기 4)단계에서 윤활유를 걸러내는 오일필터가 상기 제1 및 제2 열교환기 사이에 배치되어, 압축된 상기 증발가스는 상기 제2 열교환기에서 냉각된 후 상기 오일필터를 거쳐 상기 제1 열교환기로 도입되는 것을 특징으로 하는, 선박용 증발가스 재액화 방법. - 청구항 3에 있어서,
상기 제2 감압장치에 의해 감압된 후 상기 제2 열교환기에서 냉매로 사용된 증발가스를, 상기 발전기의 요구 온도로 가열시킨 후 상기 발전기로 보내는, 선박용 증발가스 재액화 방법. - 청구항 3에 있어서,
9) 상기 8)단계에서 감압된 유체를, 재액화된 액화가스와 기체 상태로 남아있는 증발가스로 분리하는 단계를 더 포함하는, 선박용 증발가스 재액화 방법. - 청구항 5에 있어서,
저장탱크로부터 배출된 증발가스가 상기 제1 열교환기의 냉매로 사용된 후 상기 1)단계의 압축 과정을 거치고,
상기 9)단계에서 분리된 액화가스는 상기 저장탱크로 보내지는, 선박용 증발가스 재액화 방법. - 청구항 5에 있어서,
상기 9)단계에서 분리된 기체 상태의 증발가스는, 상기 1)단계의 압축 과정을 거치기 전의 증발가스와 합류되어, 상기 제1 열교환기의 냉매로 사용되는, 선박용 증발가스 재액화 방법. - 삭제
- 청구항 3에 있어서,
상기 압축기는 다단압축기이고,
상기 압축기의 모든 단계의 압축 과정을 거친 증발가스의 일부가 상기 주 엔진으로 공급되고,
상기 압축기의 모든 단계의 압축 과정을 거친 후 상기 제1 열교환기에 의해 냉각된 유체의 일부가 상기 제2 감압장치에 의해 감압된 후 상기 발전기로 보내지는, 선박용 증발가스 재액화 방법. - 청구항 3에 있어서,
상기 주 엔진은 ME-GI 엔진 또는 X-DF 엔진인, 선박용 증발가스 재액화 방법. - 청구항 3에 있어서,
상기 발전기는 DFDG인, 선박용 증발가스 재액화 방법. - 삭제
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