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公开(公告)号：KR100852539B1
公开(公告)日：2008-08-14
申请号：KR1020070087113
申请日：2007-08-29
Applicant: 대우조선해양 주식회사
IPC: B63B25/08
Abstract: An LNG(Liquefied Natural Gas) supply assistance device with a backflow prevention valve is provided to prevent an LNG introduced inside of a main body from discharging due to the generation of a rapid sloshing. An LNG supply assistance device with a backflow prevention valve(150) includes a main body(100) and a submerged pump(200). A suction room(140) is prepared inside of the main body. The main body is divided into a top body(110) and a bottom body(120). The submerged pump is installed on a top of the suction room by an installing table(130) installed on a top portion of the main body and is connected to a pump tower. A suction hole(151) is formed long lengthwise at a top surface, a bottom surface, and an inside surface. A sealing member(152) is formed long lengthwise inside thereof to be inserted into the backflow prevention valve.
Abstract translation: 提供具有防回流阀的LNG（液化天然气）供应辅助装置，以防止由于产生快速晃动而导入主体内部的LNG排出。 具有防回流阀（150）的LNG供应辅助装置包括主体（100）和浸没泵（200）。 在主体内准备抽吸室（140）。 主体分为顶体（110）和底体（120）。 潜水泵通过安装在主体顶部的安装台（130）安装在抽吸室的顶部，并连接到泵塔。 在上表面，下表面和内表面上长度方向形成有吸入孔151。 密封构件（152）在其纵向长度方向上形成以插入防回流阀。
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公开(公告)号：KR1020070081884A
公开(公告)日：2007-08-20
申请号：KR1020060014133
申请日：2006-02-14
Applicant: 대우조선해양 주식회사
CPC classification number: F25J1/0277 , F25J1/0025 , F25J1/0045 , F25J1/0262 , F25J2205/04 , F25J2210/04 , F25J2230/02 , F25J2230/08 , F25J2230/30
Abstract: A pre-cooler device for a reliquefaction system of an LNG(Liquefied Natural Gas) carrier is provided to remove droplets of gas supplied to a reliquefaction compressor by separating the droplets with a blocking member when BOG(Boil-Off Gas) flows into a housing and to improve reliquefaction efficiency by keeping the temperature uniform regardless of external conditions. A pre-cooler device for a reliquefaction system of an LNG carrier is composed of a housing(59) for receiving BOG generated from a storage tank, through an inflow pipe(58); a droplet extractor installed at the housing to supply only the BOG to a compressor by filtering the BOG mist; a blocking member(1) bumping against the BOG flowing into the housing through the inflow pipe at the same when the BOG flows into the housing, and falling droplets with facing the direction downward; and a supply pipe(2) for mixing the BOG and LNG before the BOG flows into the housing, by drawing out the LNG passing through the droplet extractor, through the inflow pipe again.
Abstract translation: 提供了一种用于LNG（液化天然气）载体的再液化系统的预冷器装置，用于通过当BOG（沸腾气体）流入壳体中时通过用阻塞构件分离液滴来除去供应给再液化压缩机的气体的液滴 并且通过保持温度均匀而不管外部条件如何，来提高再液化效率。 用于LNG运输船的再液化系统的预冷器装置由用于接收通过流入管（58）从储罐产生的BOG的壳体（59）组成; 安装在壳体处的液滴提取器，通过过滤BOG雾，仅将BOG提供给压缩机; 当BOG流入壳体时，阻挡构件（1）通过流入管在与壳体内流动的BOG碰撞，并且面向下方的液滴; 以及用于在BOG流入壳体之前通过从流入管中抽出通过液滴提取器的LNG的混合BOG和LNG的供给管（2）。
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公开(公告)号：KR1020030073974A
公开(公告)日：2003-09-19
申请号：KR1020020013772
申请日：2002-03-14
Applicant: 대우조선해양 주식회사
IPC: C10G5/00
Abstract: PURPOSE: A method and system apparatus for reliquefying an evaporation gas of an LNG transporting vessel is provided to liquefy an evaporation gas generated as being evaporated by an external heat in a storage tank of the LNG transporting vessel. CONSTITUTION: The apparatus comprises: a spray chiller(20) which is connected to a storage tank(10) for firstly chilling the evaporation gas; a reliquefaction compressor(30) which is connected to the spray chiller(20) for pressurizing the firstly chilled evaporation gas; an evaporation gas condenser(40) which is connected to the reliquefaction compressor(30) for liquefying the pressurized evaporation gas; a second valve(110) which is connected to the evaporation gas condenser(40) for carrying parts of the liquefied evaporation gas to the spray chiller(20); a re-mixer(120) which mixes the liquefied evaporation gas with LNG of ultra low temperature stored in the storage tank(10); a reliquefied liquid recovering line(130) which is connected to the re-mixer(120) for storing the liquefied evaporation gas in the storage tank(10); and a strip spray pump(140) which carries the LNG mounted and stored at a lower part of the storage tank(10) to the re-mixer(120) through a third valve(150).
Abstract translation: 目的：提供一种用于再液化LNG运输容器的蒸发气体的方法和系统装置，以液化由LNG输送容器的储罐中的外部热量产生的蒸发气体。 构成：该装置包括：喷雾冷却器（20），其连接到储罐（10），用于首先冷却蒸发气体; 连接到所述喷雾冷却器（20）的用于对所述第一冷却蒸发气体加压的再液化压缩机（30） 蒸发气体冷凝器（40），其连接到用于液化加压蒸发气体的再液化压缩机（30）; 连接到蒸发气体冷凝器（40）的第二阀（110），用于将液化蒸发气体的一部分运送到喷雾冷却器（20）; 将液化蒸发气体与存储在储罐（10）中的超低温LNG混合的再混合器（120）; 再液化液体回收管线（130），其连接到用于将液化蒸发气体储存在储罐（10）中的再混合器（120）; 以及带式喷雾泵（140），其将通过第三阀（150）将经安装并存储在储罐（10）的下部的LNG运送到再混合器（120）。
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公开(公告)号：KR1020120045242A
公开(公告)日：2012-05-09
申请号：KR1020100106658
申请日：2010-10-29
Applicant: 대우조선해양 주식회사
Abstract: PURPOSE: A cooling system for an inert gas generator is provided to prevent the pollution of seawater by preventing the generation of salt crystals due to the use of seawater. CONSTITUTION: A cooling system for an inert gas generator includes a inert gas generator, an inert gas cooler(20), and a fresh water supplying part(30). Inert gas generated from the inert gas generator is introduced into the inert gas cooler. The inert gas cooler sprays cooling water to the inert gas. The fresh water supplying part supplies fresh water to the inert gas cooler. The fresh water is collected by the spraying operation. The fresh water supplying part includes a fresh water buffer tank(31), a supplying pump(33), and a collecting pump(35). The supplying pump supplies fresh water from the fresh water buffer tank to the inert gas cooler. The collecting pump collects used fresh water from the inert gas cooler to the fresh water buffer tank.
Abstract translation: 目的：提供一种用于惰性气体发生器的冷却系统，通过防止由于使用海水而产生盐水，防止海水污染。 构成：惰性气体发生器的冷却系统包括惰性气体发生器，惰性气体冷却器（20）和淡水供应部分（30）。 惰性气体发生器产生的惰性气体被引入到惰性气体冷却器中。 惰性气体冷却器将冷却水喷射到惰性气体中。 淡水供应部件向惰性气体冷却器供应淡水。 淡水通过喷雾操作收集。 供水部分包括淡水缓冲罐（31），供水泵（33）和集水泵（35）。 供应泵将淡水从淡水缓冲罐供应到惰性气体冷却器。 收集泵将从惰性气体冷却器使用的淡水收集到淡水缓冲罐。
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公开(公告)号：KR100804953B1
公开(公告)日：2008-02-20
申请号：KR1020070014682
申请日：2007-02-13
Applicant: 대우조선해양 주식회사
CPC classification number: F25J1/025 , F17C2265/03 , F17C2265/035 , F25J1/0025 , F25J1/005 , F25J1/0072 , F25J1/0204 , F25J1/0277 , F25J1/0279 , F25J1/0284 , F25J1/0288 , F25J1/0298 , F25J2220/62
Abstract: An apparatus for reliquefying boil-off gas is provided to minimize amount of nitrogen gas during reliquefying load operation, and to reduce power consumption during idling by allowing refrigeration load of a refrigeration system to be varied during variation of reliquefying load. An apparatus for reliquefying boil-off gas comprises a refrigeration system. The refrigeration system for compressing and expanding refrigerant is connected to an ultra low temperature heat exchanger(11). The refrigeration system includes a multi-step compressor(53), an expander(23) and a motor(M). An inverter(60) is connected to the motor. The refrigeration system uses nitrogen as refrigerant. A refrigerant circuit of the multi-step compressor is connected to one end of a nitrogen gas supply line(L4) for supplying nitrogen gas inside the refrigeration system.
Abstract translation: 提供了一种用于重新冷却蒸发气体的装置，以便在重新装载操作期间最小化氮气量，并且通过允许制冷系统的制冷负荷在再融合负载的变化期间变化来减少怠速时的功率消耗。 一种用于再液化蒸发气体的装置包括制冷系统。 用于压缩和膨胀制冷剂的制冷系统连接到超低温热交换器（11）。 制冷系统包括多级压缩机（53），膨胀机（23）和马达（M）。 逆变器（60）连接到电动机。 制冷系统使用氮气作为制冷剂。 多级压缩机的制冷剂回路连接到用于在制冷系统内供给氮气的氮气供给管线（L4）的一端。
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Patent Agency Ranking
公开(公告)号：KR100777560B1
公开(公告)日：2007-11-20
申请号：KR1020070014681
申请日：2007-02-13
Applicant: 대우조선해양 주식회사
Abstract: An apparatus and a method for reliquefying boil-off gas capable of enable a pre-performance test is provided to perform the pre-performance test before the pre-performance test of the apparatus is performed with an actual boil-off gas. In an apparatus for reliquefying boil-off gas, after boil-off gas generated in an LNG storage tank is overcooled and liquefied through an ultra-low temperature heat exchanger(11), it is returned to the LNG tank through a gas-liquid separator installed at the rear end of the ultra-low temperature heat exchanger. One end of a low nitrogen gas supply line is selectively connected to boil-off gas discharge line. Only one of the LNG storage tank and the low temperature nitrogen gas supply line is connected to the boil-off gas discharge line.
Abstract translation: 提供了一种能够进行预性能测试的用于重新冷却蒸发气体的装置和方法，以在用实际的蒸发气体进行设备的性能前测试之前进行前期性能测试。 在用于重新燃烧蒸发气体的装置中，在LNG储罐中产生的蒸发气体通过超低温热交换器（11）过冷和液化后，通过气液分离器返回到LNG罐 安装在超低温热交换器的后端。 低氮气供应管线的一端选择性地连接到蒸发气体排放管线。 只有一个液化天然气储罐和低温氮气供应管线连接到蒸发气体排放管线。
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公开(公告)号：KR101221956B1
公开(公告)日：2013-01-15
申请号：KR1020100099940
申请日：2010-10-13
Applicant: 대우조선해양 주식회사
Abstract: 본 발명이 해결하려는 과제는 HFO(Heavy fuel oil)에 의한 해상오염을 방지하기 위하여 사용되는 페일세이프(Fail safe) 기능을 기존의 선박 설비를 통해서 구현하기 위한 페일세이프 기능을 구비한 전자식 밸브 장치를 제공하는 것이다. 본 발명인 페일세이프 기능을 구비한 전자식 밸브 장치는, 연료의 공급상태에 따라 전자식 밸브를 개폐하기 위한 제어신호를 전송하는 제어장치; 상기 전자식 밸브가 페일세이프(Fail safe) 기능을 하도록 전원을 공급하는 무정전전원공급장치; 및 상기 무정전전원공급장치에서 공급받은 전원을 기반으로 구동되어, 상기 제어장치의 제어신호에 따라 연료의 흐름을 단속하는 전자식 밸브를 포함하는 것을 특징으로 한다. 본 발명에 의하면, 페일세이프(Fail safe) 기능을 가진 고가의 Spring loaded single acting 형식의 밸브를 사용하지 않고 저가의 Double acting 형식의 밸브를 사용하여 페일세이프 기능을 구현함으로써, 밸브 설치에 있어서 비용이 현저히 감소하며, 이로 인해 조선산업의 가격경쟁력이 보다 향상되는 효과가 있다.
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公开(公告)号：KR1020130003786A
公开(公告)日：2013-01-09
申请号：KR1020110065351
申请日：2011-07-01
Applicant: 대우조선해양 주식회사
Abstract: PURPOSE: A semi-submersible LNG(Liquefied Natural Gas) carrying device is provided to minimize inertia on a LNG carrier ship by minimizing the momentum of an off-loading arm due to buoyancy as a connecting arm is formed into the shape of an universal joint. CONSTITUTION: A semi-submersible LNG carrying device comprises a connecting arm(30), a semi-submersible platform(40), and an offloading arm(50). One end of the connecting arm is connected to a first position. The semi-submersible platform is connected to the other end of the connecting arm and is submerged under the seawater(S). The offloading arm is exposed from the top of the semi-submersible platform to the outside of the seawater and transfers the LNG from the first position to a second position.
Abstract translation: 目的：提供一种半潜式液化天然气（液化天然气）携带装置，用于通过使由于浮力而导致的卸载臂的动量最小化，使得连接臂形成为万向接头的形状，以最小化LNG运输船上的惯性 。 构成：半潜式LNG运输装置包括连接臂（30），半潜式平台（40）和卸载臂（50）。 连接臂的一端连接到第一位置。 半潜式平台连接到连接臂的另一端并浸没在海水（S）下方。 卸载臂从半潜式平台的顶部暴露于海水外部，并将LNG从第一位置转移到第二位置。
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公开(公告)号：KR1020090095224A
公开(公告)日：2009-09-09
申请号：KR1020080020422
申请日：2008-03-05
Applicant: 대우조선해양 주식회사
Abstract: A system and a method for circulating the LNG of a LNG carrier is provided to make a stable and safe operation of a flow rate control valve and a temperature control valve. A system for circulating the LNG of a LNG carrier comprises a LNG cycle line(L5). The LNG cycle line is installed at a liquid transfer line(L2). The liquid transfer line is connected between a LNG storage tank and the outside to transfer the liquid LNG. The LNG cycle line draws out LNG from the LNG storage tank. The drawn out LNG is again restored to the LNG storage tank after the liquid transfer line pass.
Abstract translation: 提供一种用于使LNG运输船的LNG循环的系统和方法，以使流量控制阀和温度控制阀稳定和安全地运行。 用于使LNG运输船的LNG循环的系统包括LNG循环管线（L5）。 LNG循环管线安装在液体输送管线（L2）处。 液体输送管线连接在LNG储罐和外部之间以转移液体LNG。 LNG循环线从LNG储罐中抽出液化天然气。 在液体输送管线通过后，抽出的LNG再次恢复到LNG储罐。
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公开(公告)号：KR100758400B1
公开(公告)日：2007-09-14
申请号：KR1020060014132
申请日：2006-02-14
Applicant: 대우조선해양 주식회사
IPC: F25J1/02
Abstract: 본 발명은 재액화 장치를 탑재한 액화천연가스(LNG) 운반선의 고온의 증발가스 처리시스템에 관한 것으로서, 보다 상세하게는 액화천연가스 운반선의 탱크에서 자연 증발되는 증발가스(BOG;Boil Off Gas)가 고온일지라도 가스연소장치에서 적절히 처리할 수 있도록 하여 운전 유연성을 향상시킨 것이다.
본 발명의 목적은, 압축기를 통해 가스연소장치로 증발가스를 공급할 때 증발가스의 온도를 안정적인 온도까지 낮추어 공급하도록 함으로써 가스 연소 장치의 동작 신뢰성 확보 및 운전 유연성을 증대시킨 액화천연가스 운반선의 재액화 시스템을 제공함에 있다.
상기한 목적을 실현하기 위하여 본 발명은, 액화천연가스 저장탱크(50)에서 발생된 증발가스를 압축하여 재액화 장치(A)로 공급하도록 증발가스 압축기(52)가 설비된 액화천연가스 운반선의 재액화 시스템에 있어서,
상기한 증발가스 압축기(52)에서 토출되는 증발가스를 일정 온도 이하로 냉각시키도록 구성된 후 냉각기(1)와, 상기한 후 냉각기(1)로 증발가스가 공급되는 배관(4)에 설치되어 증발가스의 공급을 제어하는 하나 이상의 제어밸브(3)와, 상기한 후 냉각기(1)를 통해 온도가 낮아진 증발가스가 공급되어 연소되도록 구성된 가스연소장치(2)를 포함함을 특징으로 한다.
LNG 운반선용 재액화 시스템, BOG, LNG 운반선용 증발가스 처리 장치
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