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公开(公告)号：KR1020110030149A
公开(公告)日：2011-03-23
申请号：KR1020090088142
申请日：2009-09-17
Applicant: 대우조선해양 주식회사
CPC classification number: Y02T10/32 , F02M21/0245 , B63H21/38 , F02M21/0287 , F02M33/025
Abstract: PURPOSE: A fuel gas supply system is provided to reduce a cooling load for reliquefaction of boil-off gas by utilizing the cold heat of boil-off gas and LNG. CONSTITUTION: A fuel gas supply system comprises a high pressure pump(170), a vaporizer(180), a reliquefying device(140), a compressing unit(120), and a refrigerant pre-cooling heat exchanger(110). The high pressure pump draws out LNG from an LNG tank and compresses the LNG to high pressure. The vaporizer is installed in the middle of the fuel gas supply line after the high pressure pump. The reliquefying apparatus reliquefies the evaporative gas generating in the LNG tank. The compressing unit is installed in the middle of an evaporative gas liquefaction line connected from the LNG tank to the reliquefying apparatus and compresses the evaporative gas generating in the LNG tank. The refrigerant pre-cooling heat exchanger is installed between the LNG tank and the compressing unit and implements heat exchange between refrigerant and the evaporative gas circulating in the reliquefying device.
Abstract translation: 目的：提供一种燃气供应系统，通过利用蒸发气和LNG的冷热来减少蒸发气体的再次冷却负荷。 构成：燃料气体供给系统包括高压泵（170），蒸发器（180），再液化装置（140），压缩单元（120）和制冷剂预冷热交换器（110）。 高压泵从LNG罐中抽出液化天然气并将LNG压缩至高压。 在高压泵之后，蒸发器安装在燃料气体供应管线的中间。 再液化装置重新液化LNG罐中产生的蒸发气体。 压缩单元安装在从LNG罐连接到再液化装置的蒸发气体液化线的中间，并压缩在LNG罐中产生的蒸发气体。 制冷剂预冷热交换器安装在LNG罐和压缩装置之间，并在制冷剂与在再液化装置中循环的蒸发气体之间进行热交换。
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公开(公告)号：KR101012642B1
公开(公告)日：2011-02-09
申请号：KR1020080058025
申请日：2008-06-19
Applicant: 대우조선해양 주식회사
CPC classification number: Y02T10/32
Abstract: 본 발명은 선박의 연료 공급 시스템에 관한 것으로, 선박의 메인 엔진에 연료를 공급하는 시스템으로서, LPG를 가압하여 연료로서 저장하는 LPG 연료 저장용 가압 탱크와, 상기 LPG 연료 저장용 가압 탱크의 하부로부터 LPG를 빼내어서 고압으로 압축한 후 상기 메인 엔진으로 공급하는 LPG 연료 공급라인과, 상기 LPG 연료 공급라인에서 고압으로 압축된 LPG를 부피 증가시켜서 상기 LPG 연료 저장용 가압 탱크로 복귀시키도록 상기 LPG 연료 공급라인의 도중에서 분기된 LPG 복귀라인을 포함하는 것을 특징으로 한다.
LPG 연료 저장용 가압 탱크, LPG 연료 공급라인, LPG 복귀라인-
公开(公告)号：KR1020100111363A
公开(公告)日：2010-10-15
申请号：KR1020090029745
申请日：2009-04-07
Applicant: 대우조선해양 주식회사
Abstract: PURPOSE: An apparatus and a method for supplying the gas fuel to the engine are provided so that the waste heat is collected from a variety of refrigerant circuits installed in a ship and the collected waste heat is used for vaporizing the natural gas. CONSTITUTION: An apparatus for supplying the gas fuel to the engine comprises a vaporizer(3) and a refrigerant circuit(7). The vaporizer is installed between a storage tank(1) and an engine(5) to vaporize the liquefied gas. The refrigerant circuit circulates the refrigerant to the vaporizer to supply the heat required for the vaporizing of the liquefied gas from the vaporizer. The refrigerant circuit is an engine cooling system for cooling the engine.
Abstract translation: 目的：提供一种将气体燃料供给到发动机的装置和方法，以便从安装在船舶上的各种制冷剂回路收集废热，并且收集的废热用于蒸发天然气。 构成：用于向发动机供应气体燃料的装置包括蒸发器（3）和制冷剂回路（7）。 蒸发器安装在储罐（1）和发动机（5）之间以使液化气体蒸发。 制冷剂回路将制冷剂循环到蒸发器，以供应来自蒸发器的液化气体蒸发所需的热量。 制冷剂回路是用于冷却发动机的发动机冷却系统。
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公开(公告)号：KR100952669B1
公开(公告)日：2010-04-13
申请号：KR1020070101504
申请日：2007-10-09
Applicant: 대우조선해양 주식회사
IPC: B63B9/00
Abstract: 본 발명은 LNG 운반선의 저장탱크 내부의 압력이 LNG를 인수받는 인수기지 측의 허용 압력보다 크더라도 LNG의 낭비 없이 LNG를 하역할 수 있는 압력 조절장치에 관한 것으로서, 본 발명에 따르면, 극저온의 LNG를 저장탱크에 저장하여 운반하는 LNG 운반선으로서, 운항 중 상기 LNG가 증발하여 발생하는 증발가스로 인한 내부압력 상승을 허용하도록 제작되는 상기 저장탱크와; 상기 저장탱크 내의 증발가스를 LNG 인수기지 측으로 하역할 때 상기 LNG 인수기지의 허용 압력에 따라 상기 증발가스의 공급압력을 조절할 수 있는 압력 조절장치; 를 포함하는 것을 특징으로 하는 LNG 운반선이 제공된다.
LNG, 운반선, 저장 탱크, 인수기지, 압력 조절장치, 밸브-
公开(公告)号：KR1020090022483A
公开(公告)日：2009-03-04
申请号：KR1020070087850
申请日：2007-08-30
Applicant: 대우조선해양 주식회사
Abstract: An apparatus for treating an evaporation gas in a LNG carrier is provided to process a gas evaporated in the LNG carrier in no need of an additional gas burner for treating the evaporation gas, thereby reducing manufacturing cost. An apparatus for treating an evaporation gas in a LNG carrier comprises the following units. A main evaporation gas supply line(L1) supplies the evaporation gas generated in the LNG carrier(1) to a main driving unit(2). A sub evaporative gas supply line(L2) is branched from a middle of the main evaporation gas supply line. An evaporative gas supply line for an inert gas generator(L3) parallely connected to the sub evaporative gas supply line supplies the evaporative gas to the inert gas generator.
Abstract translation: 提供一种用于处理LNG载体中的蒸发气体的装置，以处理在LNG载体中蒸发的气体，而不需要另外的气体燃烧器来处理蒸发气体，从而降低制造成本。 用于处理LNG运输船中的蒸发气体的装置包括以下单元。 主蒸发气体供应管线（L1）将在LNG运输工具（1）中产生的蒸发气体供应到主驱动单元（2）。 副蒸发气体供应管线（L2）从主蒸发气体供应管线的中间分支。 与副蒸发气体供给管并联连接的惰性气体发生器（L3）的蒸发气体供给管将惰性气体发生器供给蒸发气体。
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Patent Agency Ranking
公开(公告)号：KR1020080103500A
公开(公告)日：2008-11-27
申请号：KR1020080114210
申请日：2008-11-17
Applicant: 대우조선해양 주식회사
IPC: B63B25/08
CPC classification number: B63B25/14 , B63B25/16 , B63H21/14 , B63H21/16 , F02D19/022 , F02M21/0215 , F02M21/0221 , F02M21/0245 , F02M21/0287 , F17C7/04 , F17C2205/0326 , F17C2221/033 , F17C2223/0161 , F17C2223/033 , F17C2225/0123 , F17C2225/035 , F17C2225/036 , F17C2227/0135 , F17C2227/0178 , F17C2227/0306 , F17C2250/043 , F17C2250/0439 , F17C2250/0626 , F17C2250/0631 , F17C2250/0636 , F17C2265/034 , F17C2265/037 , F17C2265/066 , Y02T10/32 , Y02T70/5218
Abstract: The fuel gas supply system and method of the ship are provided to reduce the power and to prevent the excessive pressure rise according to the evaporative gas accumulation of the LNG fuel tank. The fuel gas supply system of the ship comprises a LNG fuel tank(1); the MEGI engine which is the high pressure gas injection engine; the high pressure pump(2) which compresses LNG in the high pressure and sent to the MEGI engine; the evaporation unit vaporizing LNG of the high pressure, is installed at the backend of the high pressure pump. The evaporation method is the heater(5). The LNG fuel tank is separately installed as the fuel tank of the ship. The LNG fuel tank is the LNG storage tank of the LNG carrier.
Abstract translation: 提供船舶的燃料气体供给系统和方法，以减少动力，并根据LNG燃料箱的蒸发气体积聚来防止过度的压力上升。 船舶的燃气供应系统包括LNG燃料箱（1）; 作为高压气体喷射发动机的MEGI发动机; 高压泵（2）在高压下压缩LNG并发送到MEGI发动机; 将高压蒸发LNG的蒸发单元安装在高压泵的后端。 蒸发法是加热器（5）。 液化天然气燃料箱分别安装作为船舶的燃料箱。 LNG燃料箱是LNG运输船的LNG储罐。
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公开(公告)号：KR100868856B1
公开(公告)日：2008-11-14
申请号：KR1020070050554
申请日：2007-05-23
Applicant: 대우조선해양 주식회사
IPC: F17C5/00
Abstract: An apparatus for maintaining of LNG storage tank for LNG carrier and a method for the same are provided to make an enclosure between sealing walls of the LNG storage tank into the vacuum condition by using an original apparatus for the LNG carrier without an expansive vacuum pump. An apparatus for maintaining of LNG storage tank for LNG carrier comprises as the follows. A compressor performs an intake pressure between 200 millibar and 1.7 bar. One end of a first inert gas discharge line(L1) of the LNG storage tank is connected to the sealing walls and the other end of the first inert gas discharge line of the LNG storage tank is connected to the enclosure. One end of a second inert gas discharge line(L2) of the LNG storage tank is connected to the vent mast and the other end of the second inert gas discharge line of the LNG storage tank is connected to the lower part of the compressor.
Abstract translation: 提供了用于维持用于LNG运输船的LNG储罐的装置及其方法，以通过在没有膨胀的真空泵的情况下使用用于LNG运输船的原始装置来使LNG储罐的密封壁之间的外壳成为真空状态。 用于维护LNG运输船用LNG储罐的装置如下。 压缩机执行200毫巴至1.7巴之间的进气压力。 LNG储罐的第一惰性气体排出管线（L1）的一端连接到密封壁，并且LNG储罐的第一惰性气体排放管线的另一端连接到外壳。 LNG储罐的第二惰性气体排放管线（L2）的一端连接到排气桅杆，并且LNG储罐的第二惰性气体排放管线的另一端连接到压缩机的下部。
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公开(公告)号：KR1020080031708A
公开(公告)日：2008-04-10
申请号：KR1020080020356
申请日：2008-03-05
Applicant: 대우조선해양 주식회사
IPC: B63B25/08
CPC classification number: B63B25/14 , B63B25/16 , B63H21/14 , B63H21/16 , F02D19/022 , F02M21/0215 , F02M21/0221 , F02M21/0245 , F02M21/0287 , F17C7/04 , F17C2205/0326 , F17C2221/033 , F17C2223/0161 , F17C2223/033 , F17C2225/0123 , F17C2225/035 , F17C2225/036 , F17C2227/0135 , F17C2227/0178 , F17C2227/0306 , F17C2250/043 , F17C2250/0439 , F17C2250/0626 , F17C2250/0631 , F17C2250/0636 , F17C2265/034 , F17C2265/037 , F17C2265/066 , Y02T10/32 , Y02T70/5218
Abstract: A system and a method for supplying a ship with fuel gas are provided to prevent pressure rising inside an LNG tank by inhibiting accumulation of BOG(Boil-Off Gas) in the LNG tank. A system for supplying a ship with fuel gas includes an LNG tank(1), an LNG supply line(L1), a heat exchanger(3), first and second pumps(2,4), a BOG liquefying line(L2), a heater(5), a compressor(6), and a cooler(7). The LNG supply line provides a high pressure gas spraying engine with LNG. The heat exchanger is installed midway on the LNG supply line for transferring heat between the LNG and BOG, supplies temperature-risen LNG to the high pressure gas spraying engine, and returns temperature-lowered BOG to the LNG tank. The first pump is installed on the LNG supply line above the heat exchanger and compresses the LNG as required pressure for the high pressure gas spraying engine to be provided to the high pressure gas spraying engine. The BOG liquefying line returns the BOG from the heat exchanger back to the LNG tank. The second pump is installed on the LNG supply line below the heat exchanger and compresses heat transferred LNG to be provided to the high pressure gas spraying engine. The heater heats the heat transferred LNG. The compressor and the cooler cool the BOG to be provided to the heat exchanger.
Abstract translation: 提供一种用于向船舶提供燃料气体的系统和方法，以通过抑制LNG罐中的BOG（蒸发气体）积聚来防止LNG罐内的压力升高。 用于向船舶提供燃料气体的系统包括LNG罐（1），LNG供应管线（L1），热交换器（3），第一和第二泵（2,4），BOG液化管线（L2） 加热器（5），压缩机（6）和冷却器（7）。 液化天然气供应线路为LNG提供高压气体喷射发动机。 热交换器安装在液化天然气供应线的中间，用于在LNG和BOG之间传递热量，向LNG高压气体喷射发动机提供温度升高的LNG，并将降温的BOG返回到LNG罐。 将第一泵安装在热交换器上方的LNG供应管线上，并按照要求的压力压缩LNG，以将高压气体喷射发动机提供给高压气体喷射发动机。 BOG液化线将BOG从热交换器返回到LNG罐。 第二个泵安装在热交换器下方的LNG供应管线上，并将要传送的热量的LNG压缩到高压气体喷射发动机。 加热器加热传热的LNG。 压缩机和冷却器将BOG冷却器提供给热交换器。
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公开(公告)号：KR100781868B1
公开(公告)日：2007-12-05
申请号：KR1020060074426
申请日：2006-08-07
Applicant: 대우조선해양 주식회사
Abstract: A marine LNG regasification system and a method for stopping the operation thereof are provided to prevent a danger due to the remaining of natural gas in a pipe by easily removing the natural gas in the pipe through which the natural gas has been sent during a regasification operation. A marine LNG regasification system includes an LNG regasification apparatus and a pipe connecting apparatus(20). The LNG regasification apparatus has a high pressure pump(13) and a vaporizer(14). The pipe connecting apparatus connects the LNG regasification apparatus to a pipe on the ground. The marine LNG regasification system includes check valves and a natural gas bypass unit. The check valves are provided downstream of the evaporator of the LNG regasification apparatus and the pipe connecting apparatus to block the natural gas pipe between the pipe connecting apparatus and the LNG regasification apparatus. The natural gas bypass unit bypasses the natural gas blocked by the check valves downstream of the evaporator to the outside of the natural gas pipe.
Abstract translation: 提供船用LNG再气化系统及其操作停止的方法，以便通过容易地除去在再气化操作期间天然气已经被送出的管道中的天然气而导致由于管道中的天然气残留而导致的危险 。 船用LNG再气化系统包括LNG再气装置和管连接装置（20）。 LNG再气装置具有高压泵（13）和汽化器（14）。 管道连接装置将LNG再气化装置连接到地面上的管道。 船用LNG再气系统包括止回阀和天然气旁通单元。 止回阀设置在LNG再气装置的蒸发器的下游，以及用于阻塞管连接装置和LNG再气化装置之间的天然气管的管连接装置。 天然气旁路装置将由蒸发器下游的止回阀阻塞的天然气旁路到天然气管的外部。
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公开(公告)号：KR100681557B1
公开(公告)日：2007-02-09
申请号：KR1020050116189
申请日：2005-12-01
Applicant: 대우조선해양 주식회사
IPC: B63H21/16
Abstract: A boil-off gas reliquefaction treatment system of a liquefied natural gas carrier is provided to add a process of selectively separating nitrogen contained in boil-off gas to reduce design capability of a reliquefaction process. A boil-off gas reliquefaction treatment system of a liquefied natural gas carrier includes an LNG tank(1), an LD compressor(2), a reliquefaction apparatus(3), and a nitrogen removal apparatus(4). The LNG tank is connected to the LD compressor to perform reliquefaction treatment of boil-off gas. The reliquefaction apparatus is directly connected to the LD compressor. The nitrogen removal apparatus selectively removes nitrogen of boil-off gas of the LNG tank generated by an external heat source. The nitrogen removal apparatus is disposed between the LD compressor and the reliquefaction apparatus to reduce design capability of a reliquefaction process.
Abstract translation: 提供液化天然气载体的蒸发气体再液化处理系统以增加选择性地分离蒸发气体中含有的氮的过程，以降低再液化过程的设计能力。 液化天然气运输船的蒸发气体再液化处理系统包括LNG罐（1），LD压缩机（2），再液化装置（3）和除氮装置（4）。 LNG罐与LD压缩机连接，对蒸发气体进行再液化处理。 再液化装置直接连接到LD压缩机。 氮去除装置选择性地去除由外部热源产生的LNG罐的蒸发气体的氮。 氮去除装置设置在LD压缩机和再液化装置之间以降低再液化过程的设计能力。
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