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公开(公告)号：KR1020140075606A
公开(公告)日：2014-06-19
申请号：KR1020130150792
申请日：2013-12-05
Applicant: 대우조선해양 주식회사
CPC classification number: F17C1/002 , B63H21/38 , F02M21/0287 , F17C13/00 , F17C2201/052 , F17C2221/033 , F17C2223/0161 , F17C2223/047 , F17C2227/0135 , F17C2227/0178 , F17C2265/034 , F17C2265/07 , F17C2270/0105 , F25J1/0025 , F25J1/004 , F25J1/0042 , F25J1/0202 , F25J1/0277 , F25J2240/40 , Y02E60/321 , Y02T10/32 , Y02T10/36 , Y02T70/5209 , Y02T70/5218 , Y02T90/46
Abstract: A hybrid fuel supply system of an engine for a vessel is disclosed. The hybrid fuel supply system comprises: a compressor which compresses BOG generated in LNG stored in an LNG storage tank; a high pressure pump which receives the LNG stored in the LNG storage tank and compresses the LNG; a vaporizer which vaporizes the LNG compressed in the high pressure pump; and a dual fuel (DF) engine which receives the BOG compressed through the compressor as a fuel.
Abstract translation: 公开了一种用于船舶的发动机的混合燃料供应系统。 混合燃料供给系统包括：压缩机，其压缩储存在LNG储罐中的LNG中产生的BOG; 接收储存在LNG储罐中的LNG并压缩LNG的高压泵; 蒸发器，其使在高压泵中压缩的LNG蒸发; 以及接收通过压缩机压缩的BOG作为燃料的双燃料（DF）发动机。
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公开(公告)号：KR1020140075594A
公开(公告)日：2014-06-19
申请号：KR1020130148187
申请日：2013-12-02
Applicant: 대우조선해양 주식회사
Abstract: Disclosed are a re-liquefaction system and a method for re-liquefaction of a boil-off gas. The re-liquefaction system according to the present invention includes a compressor for pressurizing a boil-off gas generated from a storage tank prepared on a ship or a maritime structure; a first heat exchanger wherein the pressurized boil-off gas is heat-exchanged with an introduced boil-off gas; and a first expansion instrument wherein the pressurized boil-off gas heat-exchanged in the heat exchanger is adiabatically expanded. The compressor is supplied with a lubricant for preventing abrasion, and an additionally prepared oil separator separates the lubricant contained in the pressurized boil-off gas, cooled by passing through a portion of the first heat-exchanger, and reintroduces the lubricant to the first heat exchanger.
Abstract translation: 公开了再液化系统和用于再沸腾蒸发气体的方法。 根据本发明的再液化系统包括：用于加压由在船舶或海上结构上制备的储罐产生的蒸发气体的压缩机; 第一热交换器，其中加压的蒸发气体与引入的蒸发气体进行热交换; 以及第一膨胀仪器，其中在热交换器中热交换的加压蒸发气体绝热膨胀。 为压缩机提供防止磨损的润滑剂，并且附加制备的油分离器分离通过通过第一热交换器的一部分而被冷却的加压蒸发气体中所含的润滑剂，并将润滑剂再次引入第一热 器。
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公开(公告)号：KR1020140075570A
公开(公告)日：2014-06-19
申请号：KR1020130073733
申请日：2013-06-26
Applicant: 대우조선해양 주식회사
Abstract: The present invention relates to a boil-off gas treatment system for an offshore structure and a treatment method thereof capable of efficiently using boil-off gas by using most of the boil-off gas as the fuel of a high-pressure natural gas jetting engine of an offshore structure after compressing the boil-off gas discharged from a storage tank, and returning the rest of the boil-off gas to the storage tank after liquefying the boil-off gas with the cold heat of boil-off gas which is newly discharged from the storage tank. The boil-off treatment system for an offshore structure having the storage tank in which the liquefied natural gas is stored and the high-pressure natural gas jetting engine using the boil-off gas as the fuel discharged from the storage tank comprises a boil-off gas compression part for compressing the boil-off gas generated in the storage tank; the high-pressure natural gas jetting engine using the boil-off gas as the fuel compressed by the boil-off gas compression part; a heat exchanger for liquefying some of the boil-off gas which is not supplied to the high-pressure natural gas jetting engine among the boil-off gas; and the storage tank to which the liquefied boil-off gas is returned from the heat exchanger. Provided are the boil-off treatment system for an offshore structure and the boil-off treatment method using the system.
Abstract translation: 本发明涉及一种用于海上结构的蒸发气体处理系统及其处理方法，其能够通过使用大部分蒸发气体作为高压天然气喷射发动机的燃料来有效地使用蒸发气体 在压缩从储罐排出的蒸发气体之后，将海洋结构压缩，并将其余的蒸发气体用新蒸发气体的冷热液化后的蒸发气体返回到储罐 从储罐中排出。 用于具有存储液化天然气的储存罐和使用该蒸发气体的高压天然气喷射发动机作为从储罐排出的燃料的海上结构的蒸发处理系统包括： 用于压缩在储罐中产生的蒸发气体的气体压缩部件; 使用蒸发气体作为由蒸发气体压缩部压缩的燃料的高压天然气喷射发动机; 用于液化在蒸发气体中未供应给高压天然气喷射发动机的一些蒸发气体的热交换器; 以及液化沸腾气体从热交换器返回的储存罐。 提供海上结构的蒸发处理系统和使用该系统的蒸发处理方法。
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公开(公告)号：KR1020140052814A
公开(公告)日：2014-05-07
申请号：KR1020130081022
申请日：2013-07-10
Applicant: 대우조선해양 주식회사
CPC classification number: Y02T10/32 , F02M21/0245 , B63B25/14 , F02D19/022 , F02M21/0212 , F02M21/06
Abstract: A fuel supply system and method for a ship engine are disclosed. The fuel supply system for a ship engine of the present invention includes: a first passage connected to liquefied natural gas (LNG) storage tanks of a ship to supply, to a high-pressure gas injection engine of the ship, boil off gas (BOG) generated from LNG stored in the LNG storage tanks; a second passage pumping and evaporating the LNG stored in the LNG storage tanks of the ship and supplying the LNG to the high-pressure gas injection engine; and stripping pumps respectively provided in the LNG storage tanks of the ship to pump LNG remaining in the LNG storage tanks. The high-pressure gas injection engine receives the LNG pumped by the stripping pumps through the second passage.
Abstract translation: 公开了一种用于船舶发动机的燃料供应系统和方法。 本发明的船用发动机的燃料供给系统包括：连接到船舶的液化天然气（LNG）储罐的第一通道，用于向船舶的高压气体注射发动机供应蒸发气体（BOG ）由储存在LNG储罐中的LNG产生; 第二通道泵送和蒸发存储在船的LNG储罐中的LNG并将LNG供应到高压气体喷射发动机; 以及分别设置在船舶的LNG储罐中的抽汽泵，以泵送剩余在LNG储罐中的LNG。 高压气体注射发动机通过第二通道接收由汽提泵泵送的LNG。
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公开(公告)号：KR101356004B1
公开(公告)日：2014-02-05
申请号：KR1020130081033
申请日：2013-07-10
Applicant: 대우조선해양 주식회사
Abstract: The present invention relates to a method for treating evaporation gas of a vessel allowing evaporation gas to efficiently be used by pressurizing evaporation gas discharged from a storage tank, and using most of them as fuel of a high pressure natural gas spray engine for a vessel and liquefying the rest of them to cold energy of evaporation gas newly discharged from the storage tank to return to the storage tank. According to the present invention, the method for treating evaporation gas of a vessel, which has a storage tank for storing liquefied natural gas and a high pressure natural gas spray engine for using evaporation gas discharged from the storage tank as fuel, comprises: a compressing step of receiving evaporation gas generated in the storage tank to be compressed by a compressor; a supplying step of classifying the evaporation gas compressed in the compressing step to supply a portion of the evaporation gas to the high pressure natural gas spray engine as fuel; and a cooling step of heat exchanging, by a heat exchanger, the rest of the evaporation gas which is not supplied to the high pressure natural gas spray engine as fuel with evaporation gas which is not compressed after being discharged from the storage tank to be cooled.
Abstract translation: 本发明涉及一种用于处理容器的蒸发气体的方法，其允许通过对从储罐排出的蒸发气体加压而有效地使用蒸发气体，并且使用它们中的大多数作为用于船只的高压天然气喷射发动机的燃料， 将其余部分液化成从储罐新排放的蒸发气体的冷能回到储罐。 根据本发明，具有用于储存液化天然气的储罐和使用从储罐排出的蒸发气体作为燃料的高压天然气喷射发动机的容器的蒸发气体处理方法包括：压缩 接收在储罐中产生的要被压缩机压缩的蒸发气体的步骤; 对在压缩步骤中压缩的蒸发气体进行分类以将一部分蒸发气体供给到高压天然气喷雾引擎作为燃料的供应步骤; 以及冷却步骤，通过热交换器将未供给高压天然气喷射发动机的其余蒸发气体作为燃料进行热交换，所述蒸发气体在从要被冷却的储罐排出后未被压缩的蒸发气体 。
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Patent Agency Ranking
公开(公告)号：KR1020130134019A
公开(公告)日：2013-12-10
申请号：KR1020120057226
申请日：2012-05-30
Applicant: 대우조선해양 주식회사
CPC classification number: F25J1/0022 , F25J1/0052 , F25J1/0212 , F25J1/0262 , F25J2240/40 , F25J2290/32 , F25B9/02 , F25B11/02 , F25B43/00 , F25J2210/60 , F25J2290/60
Abstract: The present invention relates to a natural gas liquefaction apparatus capable of transferring liquefied refrigerants without using a pump in a low temperature phase separator included in a refrigerant cycle. According to the present invention, the natural gas liquefaction apparatus liquefies the natural gas generated in a liquefied gas storing tank by comprising: a compressor which compresses refrigerants; a cooler which cools the compressed refrigerants; an expansion tool which expands the refrigerants which are cooled after being compressed; and a heat exchanger which heat exchanges the refrigerants which are expanded so that the temperature can be lowered, with natural gas and cools the natural gas. The natural gas liquefaction apparatus comprises: the heat exchanger which secondarily cools the refrigerants primarily cooled in the cooler before expanding in the expansion tool; the low temperature phase separator which separates the refrigerants which are partially evaporated while passing the expansion tool after being secondarily cooled in the heat exchanger, into liquefied refrigerants and gasified refrigerants; a gasified coolant supply pipe which is extended to supply the gasified coolants from the low temperature phase separator to the heat exchanger; a liquefied coolant supply pipe which is extended to supply the liquefied coolants from the low temperature phase separator to the heat exchanger and is joined with the gasified coolant supply pipe inside the heat exchanger; and a secondary expansion tool which is installed in the gasified coolant supply pipe and drops the pressure of the gasified coolants.
Abstract translation: 本发明涉及能够在包含在制冷剂循环中的低温相分离器中不使用泵来输送液化制冷剂的天然气液化装置。 根据本发明，天然气液化装置通过包括：压缩制冷剂的压缩机来液化在液化气储存罐中产生的天然气; 冷却压缩的制冷剂的冷却器; 膨胀工具，其膨胀被压缩后被冷却的制冷剂; 以及热交换器，热交换器通过天然气热交换膨胀的制冷剂以使天然气温度降低并冷却天然气。 天然气液化装置包括：在膨胀工具膨胀之前，二次冷却在冷却器中冷却的制冷剂的热交换器; 所述低温相分离器将在所述热交换器中二次冷却之后将通过所述膨胀工具而部分蒸发的所述制冷剂分离成液化制冷剂和气化制冷剂; 气化冷却剂供给管，其延伸以将气化的冷却剂从低温相分离器供给到热交换器; 液化冷却剂供给管延伸以将液化冷却剂从低温相分离器供给到热交换器，并与热交换器内的气化冷却剂供给管连接; 以及二次膨胀工具，其安装在气化冷却剂供给管中并降低气化冷却剂的压力。
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公开(公告)号：KR101298623B1
公开(公告)日：2013-08-26
申请号：KR1020120029449
申请日：2012-03-22
Applicant: 대우조선해양 주식회사
CPC classification number: F25J1/0025 , C09K5/045 , C09K2205/13 , F02D19/022 , F02M21/0215 , F02M21/0245 , F02M21/0287 , F02M21/06 , F17C5/06 , F25J1/0052 , F25J1/0097 , F25J1/0212 , F25J1/023 , F25J1/0254 , F25J1/0277 , F25J1/0278 , F25J1/0291 , F25J2220/62 , F25J2230/08 , F25J2230/30 , F25J2230/60 , F25J2235/60 , F25J2290/62 , Y02P20/123 , Y02P20/124 , Y02T10/32
Abstract: 본 발명은 증발가스의 재액화 장치 및 고압 천연가스 분사 엔진을 탑재한 LNG 운반선과 같은 해상 구조물에 있어서 고압 천연가스 분사 엔진에 효율적으로 연료를 공급하는 동시에 재액화 장치에서 소모하는 에너지를 최소화할 수 있는 연료 공급 시스템 및 방법에 관한 것이다.
본 발명에 따르면, 고압 천연가스 분사 엔진에 연료를 공급하는 연료 공급 시스템으로서, 액화가스를 저장하고 있는 저장탱크와; 상기 저장탱크 내에서 발생한 증발가스를 공급받아 압축하는 증발가스 압축부와; 상기 증발가스 압축부에서 압축된 증발가스를 공급받아 액화시킬 수 있는 재액화 장치와; 상기 증발가스 압축부에서 압축된 증발가스를 상기 저장탱크에서 공급된 액화가스와 혼합하여 응축시키는 재응축기와; 액화가스를 압축하는 고압 펌프와; 상기 고압 펌프에서 압축된 액화가스를 기화시키기 위한 고압 기화기와; 상기 고압 기화기의 상류측에 설치되어 상기 고압 기화기에서 기화될 액화가스로부터 냉열을 회수하는 냉열회수용 열교환기와; 상기 저장탱크에서 배출된 증발가스와 상기 증발가스 압축부에서 압축된 증발가스를 열교환하는 증발가스 예열기; 를 포함하며, 상기 저장탱크로부터 배출된 증발가스는 상기 증발가스 압축부에서 12 내지 45bara로 압축되는 것을 특징으로 하는 연료 공급 시스템과 연료 공급 방법이 제공된다.-
公开(公告)号：KR1020120103410A
公开(公告)日：2012-09-19
申请号：KR1020110105426
申请日：2011-10-14
Applicant: 대우조선해양 주식회사
CPC classification number: F25J1/0025 , F02D19/022 , F02M21/0215 , F02M21/0245 , F17C13/004 , F17C2201/052 , F17C2221/033 , F17C2223/0161 , F17C2265/034 , F17C2265/037 , F17C2265/066 , F17C2270/0105 , F17C2270/0113 , F25J1/0052 , F25J1/0097 , F25J1/0212 , F25J1/023 , F25J1/0254 , F25J1/0277 , F25J1/0278 , F25J1/0291 , F25J2220/62 , F25J2230/08 , F25J2230/30 , F25J2230/60 , F25J2235/60 , F25J2290/62 , Y02T10/32
Abstract: PURPOSE: A fuel supply method for a high-pressure natural gas injection engine is provided to obtain more effective and safe re-liquefying effect than an existing nitrogen refrigerating cycle using non-flammable mixed refrigerants. CONSTITUTION: A fuel supply method for a high-pressure natural gas injection engine is as follows. The BOG(Boil-Off Gas) discharged form a storage tank is re-liquefied after being compressed at 12~45 bara. The refrigerants in a gas state from a refrigerant vapor-liquid separator(22) and the refrigerants in a liquid state are mixed again, and supplied to the refrigerant vapor-liquid separator placed at the bottom side.
Abstract translation: 目的：提供一种用于高压天然气注射发动机的燃料供应方法，以获得比使用不可燃混合制冷剂的现有氮制冷循环更有效和安全的再液化效果。 构成：高压天然气喷射发动机的燃料供给方法如下。 从储罐中排出的BOG（蒸汽除气）在12〜45巴压缩后再液化。 将来自制冷剂气液分离器（22）的气态制冷剂和液态制冷剂再次混合，供给到设置在底侧的制冷剂气液分离器。
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公开(公告)号：KR101090235B1
公开(公告)日：2011-12-06
申请号：KR1020100103736
申请日：2010-10-22
Applicant: 대우조선해양 주식회사
CPC classification number: Y02C10/12
Abstract: PURPOSE: A carbon dioxide solidification removal system is provided to supply heat from a heater and reproduce and remove a solidified carbon dioxide while stopping the supply of a natural gas to an expansion valve and a solidification carbon dioxide filter. CONSTITUTION: A carbon dioxide solidification elimination system(810) is comprised of an expansion valve(812), a solidification carbon dioxide filter(813), first and second opening valves(814,815), a heating portion(816), and a third open valve(817). The expansion valve reduces the pressure of high pressure natural gas to be liquid. The solidification carbon dioxide filter filters solidified carbon dioxide in the natural gas passed through the expansion valve. The heating portion heats the solidified carbon dioxide to be vaporized.
Abstract translation: 目的：提供一种二氧化碳固化除去系统，用于从加热器提供热量，并再次除去固化的二氧化碳，同时停止向膨胀阀和凝固二氧化碳过滤器供应天然气。 构成：二氧化碳凝固消除系统（810）包括膨胀阀（812），凝固二氧化碳过滤器（813），第一和第二开启阀（814,815），加热部分（816）和第三开口 阀（817）。 膨胀阀将高压天然气的压力降低到液态。 固化二氧化碳过滤器过滤固化的二氧化碳在天然气中通过膨胀阀。 加热部分加热要蒸发的固化二氧化碳。
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公开(公告)号：KR101076271B1
公开(公告)日：2011-10-26
申请号：KR1020100100937
申请日：2010-10-15
Applicant: 대우조선해양 주식회사
CPC classification number: C10L3/08 , B63B25/16 , B63B35/44 , C10K1/005 , C10L2290/08 , C10L2290/30 , F25J1/0022
Abstract: 본 발명은 가압액화천연가스 생산 방법 및 이에 사용되는 생산 시스템에 관한 것으로서, 천연가스전으로부터 천연가스를 공급받아 산성가스를 제거하는 과정 없이 탈수하는 탈수단계와, 탈수단계를 마친 천연가스를 NGL(Natural Gas Liquid)을 분별하는 과정 없이 13 ~ 25bar의 압력과 -120 ~ -95℃의 온도로 액화하여 가압액화천연가스를 생산하는 액화단계를 포함하는 가압액화천연가스 생산 방법 및 이에 사용되는 생산 시스템이 제공된다.
본 발명에 따르면, 플랜트 제작에 소요되는 비용과 유지비를 절감시킬 수 있고, 액화천연가스의 생산 단가를 줄일 수 있으며, 기존 방식으로는 경제성을 확보하기 어려웠던 중소형 가스전에서의 경제적인 이익 및 투자회수 기간의 단축을 보장할 수 있다.
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