KR100647919B1 - Installation structure for operating system of lng carrier - Google Patents

Installation structure for operating system of lng carrier Download PDF

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Publication number
KR100647919B1
KR100647919B1 KR1020050086288A KR20050086288A KR100647919B1 KR 100647919 B1 KR100647919 B1 KR 100647919B1 KR 1020050086288 A KR1020050086288 A KR 1020050086288A KR 20050086288 A KR20050086288 A KR 20050086288A KR 100647919 B1 KR100647919 B1 KR 100647919B1
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South Korea
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gas
steam generator
gas turbine
heat recovery
combustion unit
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KR1020050086288A
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Korean (ko)
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이철우
남건우
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대우조선해양 주식회사
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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
    • B63H21/21—Control means for engine or transmission, specially adapted for use on marine vessels

Abstract

A structure for integrating and installing an operation system of an LNG ship is provided to simplify the operation system by integrating a bypass duct and a gas combustion unit. In a structure for integrating and installing an operation system of an LNG ship, a burner(3a) is installed to incinerate the residual LNG gas and a duct burner(2a) is installed to provide a heat source to a heat recovering steam generator. A combustion air supply fan(3b) is adapted to use a gas combustion unit. A combustion air supply fan(2b) is adapted to use a duct burner. An interruption damper(3c) is adapted to interrupt a system when an exhaust bypass is not applied. An interruption damper is adapted to interrupt the system when the heat recovering steam generator is not used.

Description

엘엔지선의 운전시스템 통합 설치구조{Installation structure for operating system of LNG carrier}Installation structure for operating system of LNG carrier

도 1은 본 발명에 의한 통합 설치구조를 개략적으로 나타낸 전체구성도1 is an overall configuration diagram schematically showing an integrated installation structure according to the present invention

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1 : 가스터빈 2 : 열회수스팀발생기1: Gas turbine 2: Heat recovery steam generator

2a : 덕트버너 2b : 연소공기공급팬2a: Duct Burner 2b: Combustion Air Supply Fan

2c : 차단댐퍼 3 : 가스연소유닛2c: blocking damper 3: gas combustion unit

3a : 버너 3b : 연소공기공급팬3a: Burner 3b: Combustion air supply fan

3c : 차단댐퍼 3c: blocking damper

본 발명은 엘엔지선의 운전시스템 통합 설치구조에 관한 것이다.The present invention relates to an integrated structure of the operating system of the L-engine ship.

본 발명은 엘엔지선에 적용되는 COGES 시스템(Combined Gas Turbine and Steam Turbine Integrated Electric Drive System)에서 각각 별도로 설치되어 운전되는 바이패스덕트와 가스연소유닛(GCU: Gas Combustion Unit)을 단일화 된 통합형으로 구성함으로서 각각의 구성요소가 운전에 지장을 초래하지 않으면서도 상기 운 전시스템을 일층 단순화 할 수 있도록 한 것이다.According to the present invention, a bypass duct and a gas combustion unit (GCU), which are installed and operated separately in a COGES system (Combined Gas Turbine and Steam Turbine Integrated Electric Drive System) applied to an LG ship, are configured as a single integrated type. Each component is designed to simplify the operation system without disrupting operation.

일반적인 운전모드에서 가스터빈으로부터 배출되는 고온의 배가스는 열회수스팀발생기(HRSG)를 통과하면서 열을 회수하게 되며 또 이와 독립적으로 엘엔지선의 카고탱크 압력이 상승하게 되면 엘엔지가스를 가스연소유닛(GCU)으로 보내 소각함으로서 카고탱크의 압력을 조절하게 된다.In the normal operation mode, the high-temperature exhaust gas discharged from the gas turbine passes through the heat recovery steam generator (HRSG) and recovers heat.Independently, when the cargo tank pressure of the LENG vessel rises, the LGE gas is transferred to the gas combustion unit (GCU). By sending it to incineration, it regulates the cargo tank pressure.

그리고 열회수스팀발생기의 운전중에 상기 열회수스팀발생기의 유지보수가 필요할 때에는 댐퍼를 사용하여 상기 열회수스팀발생기로 가는 배가스를 차단하고 바이패스턱트로 우회시켜서 배출하게 된다.When maintenance of the heat recovery steam generator is required during the operation of the heat recovery steam generator, the exhaust gas to the heat recovery steam generator is blocked by a damper and bypassed by a bypass duct to be discharged.

그러나 상기와 같은 종래의 운전시스템의 경우 열회수스팀발생기가 유지보수 등을 필요로 할 때 가스터빈의 배가스를 배출시키기 위한 별도의 덕트인 바이패스덕트 및 엘엔지선의 카고탱크에서 잉여로 발생된 가스를 소각시키는 장치인 가스연소유닛, 그리고 상기 가스터빈의 배가스 열을 회수하여 스팀을 발생시키는 장치인 열회수스팀발생기를 각각 개별적으로 설치해야만 하기 때문에 비용이 과도하게 소요되고 또한 각 부분이 사용될 때 서로 영향을 받지 않도록 구성되기 때문에 운전시스템이 매우 복잡해질 뿐만 아니라 각각의 운전시스템들이 설치공간을 과도하게 점유하게 되는 문제점들이 발생하게 된다. However, in the case of the conventional operation system as described above, when the heat recovery steam generator needs maintenance, the gas generated by the surplus in the cargo duct of the bypass duct and the LG Engineering line, which are separate ducts for exhausting the exhaust gas of the gas turbine, are incinerated. The gas combustion unit, which is a device to make a gas, and the heat recovery steam generator, which is a device that generates steam by recovering the exhaust gas heat of the gas turbine, must be installed separately, so that the cost is excessive and it is not affected by each other when each part is used. In addition, the operation system is not only very complicated, but also causes problems that each operating system occupies an excessive amount of installation space.

본 발명은 엘엔지선에 적용되는 COGES 시스템(Combined Gas Turbine and Steam Turbine Integrated Electric Drive System)에서 각각 별도로 설치되어 운전되는 바이패스덕트와 가스연소유닛을 단일화 된 통합형으로 구성함으로서 각각의 구성요소가 운전에 지장을 초래하지 않으면서도 상기 운전시스템을 일층 단순화 할 수 있도록 함을 목적으로 한다.The present invention consists of a single integrated integrated bypass duct and a gas combustion unit which are installed and operated separately in a COGES system (Combined Gas Turbine and Steam Turbine Integrated Electric Drive System) applied to an L-engine ship. It is an object of the present invention to further simplify the operation system without causing trouble.

이를 위해 본 발명은 엘엔지선의 카고탱크에서 잉여로 발생된 가스를 소각 및 가스터빈의 배가스를 배출시키기 위해 설치되는 가스연소유닛 및 가스터빈의 배가스 열을 회수하여 스팀을 발생시키기 위해 설치되는 열회수스팀발생기, 그리고 바이패스덕트 등이 별도로 구성되어 운전되는 엘엔지선의 운전시스템에 있어서, To this end, the present invention is incineration of the gas generated in the cargo tank of the L ENG vessel and a heat recovery steam generator installed to generate steam by recovering the exhaust gas heat of the gas combustion unit and gas turbine installed to discharge the exhaust gas of the gas turbine And, in the operating system of the L ENG vessel that the bypass duct is configured and operated separately,

상기 가스연소유닛과 바이패스덕트를 가스터빈의 인접한 부위에 하나로 통합 설치하되, 가스연소유닛측과 열회수스팀발생기측에 가스터빈쪽으로 각각 가스연소유닛에서 잉여 엘엔지가스를 소각하기 위해 설치되는 버너와 가스터빈 작동불가시 상기 열회수스팀발생기에 열원을 제공하기 위해 설치되는 덕트버너 및 가스연소유닛 사용을 위한 연소공기 공급용 연소공기공급팬과 덕트버너 사용을 위한 연소공기 공급용 연소공기공급팬, 그리고 배가스 바이패스 미적용시 시스템을 차단하기 위한 차단댐퍼와 열회수스팀발생기 미 사용시 시스템을 차단하기 위한 차단댐퍼를 순차 설치하는 것을 특징으로 하는 엘엔지선의 운전시스템 통합 설치구조를 제공함으로서 상기 목적을 달성하고자 한다.The gas combustion unit and the bypass duct are integrally installed in the adjacent part of the gas turbine, but the burner and the gas are installed to incinerate the surplus LENG gas from the gas combustion unit to the gas turbine side respectively on the gas combustion unit side and the heat recovery steam generator side. Combustion air supply fan for supplying combustion air for use of duct burner and gas combustion unit and combustion air supply fan for use of duct burner, and exhaust gas installed to provide heat source to the heat recovery steam generator when the turbine is inoperable The purpose of the present invention is to provide an integrated installation structure of an operating system of an LNG ship, characterized by sequentially installing a blocking damper for blocking the system when the bypass is not applied and a blocking damper for blocking the system when the heat recovery steam generator is not used.

본 발명은 엘엔지선의 카고탱크에서 잉여로 발생된 가스를 소각 및 가스터빈의 배가스를 배출시키기 위해 설치되는 가스연소유닛 및 가스터빈의 배가스 열을 회수하여 스팀을 발생시키기 위해 설치되는 열회수스팀발생기, 그리고 바이패스덕트 등이 별도로 구성되어 운전되는 엘엔지선의 운전시스템에 있어서, The present invention is a heat recovery steam generator is installed to recover the exhaust gas of the gas combustion unit and the gas turbine is installed to incinerate the excess gas generated in the cargo tank of the L ENG line and exhaust gas of the gas turbine, and to generate steam, and In the operating system of the L ENG vessel in which the bypass duct is configured and operated separately,

상기 가스연소유닛(3)과 바이패스덕트를 가스터빈(1)의 인접한 부위에 하나로 통합 설치하되, 가스연소유닛(3)측과 열회수스팀발생기(2)측에 가스터빈(1)쪽으로 각각 가스연소유닛(3)에서 잉여 엘엔지가스를 소각하기 위해 설치되는 버너(3a)와 가스터빈(1) 작동불가시 상기 열회수스팀발생기(2)에 열원을 제공하기 위해 설치되는 덕트버너(2a) 및 가스연소유닛(3) 사용을 위한 연소공기 공급용 연소공기공급팬(3b)과 덕트버너(2a) 사용을 위한 연소공기 공급용 연소공기공급팬(2b), 그리고 배가스 바이패스 미적용시 시스템을 차단하기 위한 차단댐퍼(3c)와 열회수스팀발생기(2) 미 사용시 시스템을 차단하기 위한 차단댐퍼(2c)를 순차 설치하는 것을 특징으로 한다.The gas combustion unit 3 and the bypass duct are integrally installed in one adjacent part of the gas turbine 1, but each gas is directed toward the gas turbine 1 on the gas combustion unit 3 side and the heat recovery steam generator 2 side. Burner (3a) and gas turbine (1) is installed to incinerate the surplus L engine gas in the combustion unit (3) and the duct burner (2a) and gas installed to provide a heat source to the heat recovery steam generator (2) when the operation of the gas turbine (1) To shut off the system when the combustion air supply fan (3b) for the combustion air supply for the use of the combustion unit (3) and the combustion air supply fan (2b) for the combustion air supply for the use of the duct burner (2a) and the exhaust gas bypass are not applied. Blocking damper (3c) and the heat recovery steam generator (2) when not in use characterized in that the installation of the blocking damper (2c) for blocking the system in sequence.

본 발명은 엘엔지선에 적용되는 COGES 시스템(Combined Gas Turbine and Steam Turbine Integrated Electric Drive System)에서 각각 별도로 설치되어 운전되는 바이패스덕트와 가스연소유닛(3)을 단일화 된 통합형으로 구성함으로서 각각의 구성요소가 운전에 지장을 초래하지 않으면서도 상기 운전시스템을 일층 단순화 할 수 있도록 하고 있는 것이다.The present invention consists of a single integrated unit of the bypass duct and the gas combustion unit (3) installed and operated separately in the COGES system (Combined Gas Turbine and Steam Turbine Integrated Electric Drive System) applied to the L-engine ship It is intended to simplify the operation system even without causing any disruption to the operation.

본 발명에 적용되는 가스연소유닛(3)과 열회수스팀발생기(2) 등은 종래와 같은 작용을 하게 된다.The gas combustion unit 3 and the heat recovery steam generator 2 applied to the present invention have the same function as the conventional one.

다만 본 발명은 도 1에서와 같이 상기 가스연소유닛(3)과 바이패스덕트 등이 각각 별도로 적용되는 엘엔지선의 운전시스템 보다 단순화하기 위해 상기의 구성을 통합 적용하고 있는 것이다.However, in the present invention, the gas combustion unit 3 and the bypass duct, as shown in FIG.

먼저 가스연소유닛(3)과 바이패스덕트를 가스터빈(1)의 인접한 부위에 하나 로 통합 설치하게 되는 바, 가스연소유닛(3)측과 열회수스팀발생기(2)측에 가스터빈(1)쪽으로 각각 가스연소유닛(3)에서 잉여 엘엔지가스를 소각하기 위해 설치되는 버너(3a)와 가스터빈(1) 작동불가 시 상기 열회수스팀발생기(2)에 열원을 제공하기 위한 덕트버너(2a)를 설치하게 된다.First, the gas combustion unit 3 and the bypass duct are integrally installed in the adjacent part of the gas turbine 1, and the gas turbine 1 is provided on the gas combustion unit 3 side and the heat recovery steam generator 2 side. To the burner (3a) and gas turbine (1) which is installed to incinerate the surplus L engine gas in each of the gas combustion unit (3) toward the duct burner (2a) for providing a heat source to the heat recovery steam generator (2) Will be installed.

또한 가스연소유닛(3)측에 상기 가스연소유닛(3) 사용을 위한 연소공기 공급용 연소공기공급팬(3b)과 열회수스팀발생기(2)측에 덕트버너(2a) 사용을 위한 연소공기 공급용 연소공기공급팬(2b)을 설치하게 됨과 동시에 가스터빈(1)측과 가장 가까운 부위에 배가스 바이패스 미적용시 시스템을 차단하기 위한 차단댐퍼(3c)와 열회수스팀발생기(2) 미 사용시 시스템을 차단하기 위한 차단댐퍼(2c)를 순차 설치하고 있는 것이다.In addition, the combustion air supply fan 3b for supplying combustion air for use of the gas combustion unit 3 on the gas combustion unit 3 side and the combustion air supply for use of the duct burner 2a on the heat recovery steam generator 2 side. When the combustion air supply fan (2b) is installed and the shutoff damper (3c) and heat recovery steam generator (2) are not used to shut off the system when the exhaust gas bypass is not applied to the part closest to the gas turbine (1) side, The blocking dampers 2c for blocking are sequentially installed.

이와 같은 구조로 통합 설치되는 본 발명은 상기 가스연소유닛(3)과 열회수스팀발생기(2)가 각각 엘엔지선의 카고탱크에서 잉여로 발생된 가스를 소각 및 가스터빈(1)의 배가스를 배출시키는 작용과 함께 가스터빈(1)의 배가스 열을 회수하여 스팀을 발생시키는 작용을 무리없이 수행하되, 서로 운전에 간섭되지 않은 상태로 운전됨에 따라 운전시스템을 보다 단순화 시킬 수 있게 될 뿐만 아니라 그에 따르는 설치공간을 최소화 할 수 있게 되며 또한 각각의 구성을 별도로 구성하는데에 따르는 설치비용도 현저히 줄일 수 있게 되는 것이다.In the present invention, the gas combustion unit 3 and the heat recovery steam generator 2 are incinerated and discharge the exhaust gas of the gas turbine 1 from the cargo tank of the LENG vessel, respectively. In addition, it is possible to recover the exhaust gas heat of the gas turbine (1) to generate steam without any effort, but it is possible to simplify the operating system as it is operated without interfering with each other operation, as well as the installation space accordingly It can minimize the installation cost and also significantly reduce the installation cost of configuring each configuration separately.

이상에서는 본 발명의 바람직한 실시예에 대하여 도시하고 설명하였으나 본 발명은 상기한 실시예에 한정되지 아니하며 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 본 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누 구든지 다양한 변형 실시가 가능한 것은 물론이고 그와 같은 변경은 기재된 청구범위 내에 있게 된다.Although the above has been illustrated and described with respect to the preferred embodiment of the present invention, the present invention is not limited to the above-described embodiment without departing from the gist of the present invention claimed in the claims, having ordinary skill in the art to which the present invention pertains. Any modifications and modifications can be made by anyone, as such modifications are within the scope of the appended claims.

본 발명은 엘엔지선에 적용되는 COGES 시스템(Combined Gas Turbine and Steam Turbine Integrated Electric Drive System)에서 각각 별도로 설치되어 운전되는 바이패스덕트와 가스연소유닛을 단일화 된 통합형으로 구성함으로서 각각의 구성요소가 운전에 지장을 초래하지 않으면서도 상기 운전시스템을 일층 단순화 할 수 있게 될 뿐만 아니라 그에 따르는 설치공간을 최소화 할 수 있게 되며 또한 각각의 구성을 별도로 구성하는 데에 따르는 설치비용도 현저히 줄일 수 있는 다양한 장점이 있다.The present invention consists of a single integrated integrated bypass duct and a gas combustion unit which are installed and operated separately in a COGES system (Combined Gas Turbine and Steam Turbine Integrated Electric Drive System) applied to an L-engine ship. It is possible to further simplify the operation system without causing troubles, and to minimize the installation space according to the above, and also to significantly reduce the installation cost of configuring each component separately. .

Claims (1)

엘엔지선의 카고탱크에서 잉여로 발생된 가스를 소각 및 가스터빈의 배가스를 배출시키기 위해 설치되는 가스연소유닛 및 가스터빈의 배가스 열을 회수하여 스팀을 발생시키기 위해 설치되는 열회수스팀발생기, 그리고 바이패스덕트 등이 별도로 구성되어 운전되는 엘엔지선의 운전시스템에 있어서, Gas recovery unit installed to incinerate surplus gas in cargo tank of LNG ship and exhaust gas of gas turbine, heat recovery steam generator installed to recover steam from exhaust gas of gas turbine, and bypass duct In the operating system of the L ENG ship that is configured and operated separately, 상기 가스연소유닛(3)과 바이패스덕트를 가스터빈(1)의 인접한 부위에 하나로 통합 설치하되, 가스연소유닛(3)측과 열회수스팀발생기(2)측에 가스터빈(1)쪽으로 각각 가스연소유닛(3)에서 잉여 엘엔지가스를 소각하기 위해 설치되는 버너(3a)와 가스터빈(1) 작동불가시 상기 열회수스팀발생기(2)에 열원을 제공하기 위해 설치되는 덕트버너(2a) 및 가스연소유닛(3) 사용을 위한 연소공기 공급용 연소공기공급팬(3b)과 덕트버너(2a) 사용을 위한 연소공기 공급용 연소공기공급팬(2b), 그리고 배가스 바이패스 미적용시 시스템을 차단하기 위한 차단댐퍼(3c)와 열회수스팀발생기(2) 미 사용시 시스템을 차단하기 위한 차단댐퍼(2c)를 순차 설치하는 것을 특징으로 하는 엘엔지선의 운전시스템 통합 설치구조.The gas combustion unit 3 and the bypass duct are integrally installed in one adjacent part of the gas turbine 1, but each gas is directed toward the gas turbine 1 on the gas combustion unit 3 side and the heat recovery steam generator 2 side. Burner (3a) and gas turbine (1) is installed to incinerate the surplus L engine gas in the combustion unit (3) and the duct burner (2a) and gas installed to provide a heat source to the heat recovery steam generator (2) when the operation of the gas turbine (1) To shut off the system when the combustion air supply fan (3b) for the combustion air supply for the use of the combustion unit (3) and the combustion air supply fan (2b) for the combustion air supply for the use of the duct burner (2a) and the exhaust gas bypass are not applied. Integrated structure of the operation system of the L ENG line, characterized in that for installing the shut-off damper (3c) and the heat recovery steam generator (2) when not in use to block the damper (2c) for blocking the system.
KR1020050086288A 2005-09-15 2005-09-15 Installation structure for operating system of lng carrier KR100647919B1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833594A (en) 1981-08-20 1983-02-26 Mitsubishi Heavy Ind Ltd Compound energy conservation type equipment for liquefied-gas ship
JPS58133426A (en) 1982-02-03 1983-08-09 Hitachi Ltd Exhaust gas duct
JPH0345806A (en) * 1989-07-07 1991-02-27 Matsushita Electric Ind Co Ltd Burning equipment
JPH05113108A (en) * 1991-10-23 1993-05-07 Osaka Gas Co Ltd Cold heat power generator utilizing liquefied natural gas
KR100424737B1 (en) 2001-02-26 2004-03-30 가부시키가이샤 고베 세이코쇼 Apparatus for processing of boil off gas of low temperature liquefied gas
KR100489804B1 (en) 2002-11-28 2005-05-16 대우조선해양 주식회사 A system of management for B.O.G in LNG carrier

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833594A (en) 1981-08-20 1983-02-26 Mitsubishi Heavy Ind Ltd Compound energy conservation type equipment for liquefied-gas ship
JPS58133426A (en) 1982-02-03 1983-08-09 Hitachi Ltd Exhaust gas duct
JPH0345806A (en) * 1989-07-07 1991-02-27 Matsushita Electric Ind Co Ltd Burning equipment
JPH05113108A (en) * 1991-10-23 1993-05-07 Osaka Gas Co Ltd Cold heat power generator utilizing liquefied natural gas
KR100424737B1 (en) 2001-02-26 2004-03-30 가부시키가이샤 고베 세이코쇼 Apparatus for processing of boil off gas of low temperature liquefied gas
KR100489804B1 (en) 2002-11-28 2005-05-16 대우조선해양 주식회사 A system of management for B.O.G in LNG carrier

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