KR200441467Y1 - Ship for Liquid Natural Gas Carrier - Google Patents

Ship for Liquid Natural Gas Carrier Download PDF

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Publication number
KR200441467Y1
KR200441467Y1 KR2020070000572U KR20070000572U KR200441467Y1 KR 200441467 Y1 KR200441467 Y1 KR 200441467Y1 KR 2020070000572 U KR2020070000572 U KR 2020070000572U KR 20070000572 U KR20070000572 U KR 20070000572U KR 200441467 Y1 KR200441467 Y1 KR 200441467Y1
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South Korea
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steam
turbine
boiler
fuel
natural gas
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KR2020070000572U
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Korean (ko)
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KR20080002647U (en
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윤종현
황영석
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삼성중공업 주식회사
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Priority to KR2020070000572U priority Critical patent/KR200441467Y1/en
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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
    • 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
    • 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
    • B63H21/02—Use of propulsion power plant or units on vessels the vessels being steam-driven
    • B63H21/06—Use of propulsion power plant or units on vessels the vessels being steam-driven relating to steam turbines
    • 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
    • B63H21/02—Use of propulsion power plant or units on vessels the vessels being steam-driven
    • B63H21/08—Use of propulsion power plant or units on vessels the vessels being steam-driven relating to steam boilers
    • 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
    • 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
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/025—Bulk storage in barges or on ships
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
    • B63J2/12—Heating; Cooling
    • B63J2002/125—Heating; Cooling making use of waste energy

Abstract

본 고안은 저온지역을 운항하는 액화가스 운반선박으로서, 화물창 내에서 발생되는 자연기화가스와; 중질유 중 어느 하나를 이용하여 증기를 생성하는 이중연료 증기보일러와; 상기 이중연료 증기보일러에서 발생되는 증기를 이용하여 동력을 발생시키는 터빈과; 상기 터빈에 의해 작동되며, 전기를 생산하는 발전기를 갖는 터빈발전기; 및 상기 이중연료 보일러를 통하여 배출된 잉여 증기의 처리를 위한 콘덴서를 포함하는 것을 특징으로 하는 액화가스 운반선박을 제공한다.The present invention is a liquefied gas carrier ship operating in a low temperature region, and the natural vaporization gas generated in the cargo hold; A dual fuel steam boiler for generating steam using any one of heavy oils; A turbine generating power by using steam generated by the dual fuel steam boiler; A turbine generator operated by the turbine, the turbine generator having a generator for producing electricity; And it provides a liquefied gas carrier ship comprising a condenser for the treatment of excess steam discharged through the double fuel boiler.

본 고안에 의하면, 이중연료 증기보일러는 카고 탱크에서 발생되는 자연기화가스를 연료로 사용하여 자연기화가스를 효율적으로 사용할 수 있으며, 별도의 재기화 장치와 소각기 설치를 생략할 수 있어 제작비를 줄일 수 있는 효과를 제공한다.According to the present invention, the dual fuel steam boiler can efficiently use natural gas by using the natural gas generated in the cargo tank as fuel, and can reduce the production cost by eliminating the separate regasification device and incinerator installation. Provide the effect.

천연가스, 재액화 장치, 이중연료 보일러 Natural Gas, Reliquefaction Units, Dual Fuel Boilers

Description

액화가스 운반선박{Ship for Liquid Natural Gas Carrier}Ship for Liquid Natural Gas Carrier

도 1은 종래 액화가스 운반선박을 도시한 구성도이다.1 is a block diagram showing a conventional liquefied gas carrier ship.

도 2는 본 고안에 따른 액화가스 운반선박의 일 실시예를 도시한 구성도이다.Figure 2 is a block diagram showing an embodiment of a liquefied gas carrier ship according to the present invention.

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

100 : 카고 탱크 110 : 자연기화가스 컴프레서100: cargo tank 110: natural vaporization gas compressor

120 : 이중연료 증기보일러 130 : 터빈120: dual fuel steam boiler 130: turbine

132 : 터빈발전기 140 : 엔진132: turbine generator 140: engine

142 : 엔진발전기 150 : 콘덴서142: engine generator 150: condenser

160 : 메인 엔진 162 : 프로펠러160: main engine 162: propeller

본 고안은 액화가스 운반선박에 관한 것으로서, 카고탱크에서 발생되는 자연기화가스를 이중연료 증기보일러에서 소비함으로써, 자연기화가스를 효율적으로 사 용할 수 있으며, 별도의 재기화 장치와 소각기를 설치하지 않아도 되는 액화가스 운반선박에 관한 것이다.The present invention relates to a liquefied gas carrier ship, by consuming the natural gas generated from the cargo tank in a double fuel steam boiler, it is possible to efficiently use the natural gas, without installing a separate regasification device and incinerator It relates to a liquefied gas carrier ship.

일반적으로 현재까지 개발되고 건조되는 액화가스 운반선박 중 저속 디젤 엔진(Slow Diesel Engine)을 장착한 액화가스 운반선박의 경우 자연 기화 가스의 처리 장치로서 통상 발생된 자연기화가스를 재액화하여 화물창으로 이송하는 재액화 장치와 예비 처리장치인 가스연소장치가 형성된다. 이하 도면을 참조하여 보다 상세히, 설명한다.In general, a liquefied gas carrier ship equipped with a low diesel engine among liquefied gas carrier ships developed and dried to date is a device for treating natural vaporized gas and re-liquefies the generated natural vaporized gas to a cargo hold. The reliquefaction apparatus and the gas combustion apparatus which are preliminary processing apparatuses are formed. It will be described below in more detail with reference to the drawings.

도 1을 참조하면, 종래 액화가스 운반선박은 카고 탱크(10)와 상기 카고 탱크에 담긴 천연가스의 기화 시 이를 재액화하는 재액화 장치(11)와, 선박의 저부하 상태에서 가스 터빈에 공급해야 하는 자연기화가스 량이 적을 때 잉여 자연기화가스를 소각시키는 소각기(12, GCU : Gas Combustion Unit; )와, 엔진(13)에 의해 작동되어 선박 내에 전기를 공급하는 발전기(14)와, 중질유를 사용하여 작동되는 메인 엔진(15)과, 상기 메인 엔진에 의해 작동되는 프로펠러(16), 중질유를 연료로 이용하며, 난방 및 빙제거를 위한 증기를 생산하는 증기보일러(17)를 포함한다.Referring to FIG. 1, the conventional liquefied gas carrier ship is supplied to a gas tank in a cargo tank 10 and a reliquefaction apparatus 11 for reliquefying it when vaporizing natural gas contained in the cargo tank, and a low load state of a ship. Incinerator (12, GCU: Gas Combustion Unit;) to incinerate surplus natural gas, when the amount of natural gas to be reduced is small, generator 14, which is operated by the engine 13 and supplies electricity to the vessel, and heavy oil The main engine 15 is operated by using, the propeller 16 operated by the main engine, and a steam boiler 17 using heavy oil as a fuel and producing steam for heating and deicing.

그러나 액화가스 운반선박의 경우에는 고가의 재액화 장치(11)를 선박에 설치하여야 하며, 특히 저온지역에서 운항하는 액화가스 운반선박의 경우 저온지역 운항에 필요한 난방 및 빙제거에 다량의 증기를 사용하기 위해 대용량의 증기보일러(17)를 설치하여 운항하고 있다. 이 경우 재액화 장치(11)와 가스연소장치(12) 외에 대용량의 증기보일러(17)까지 설치되어야 한다.However, in case of a liquefied gas carrier, an expensive reliquefaction apparatus 11 should be installed on the ship, and in the case of a liquefied gas carrier that operates in a low temperature region, a large amount of steam is used to remove heating and ice required for a low temperature region operation. In order to operate a large-capacity steam boiler (17) to operate. In this case, in addition to the reliquefaction apparatus 11 and the gas combustion apparatus 12, a large capacity steam boiler 17 should be installed.

따라서 액화가스 운반선박의 카고탱크 내에서 발생되는 자연기화가스를 처리 하기 위해 고가의 재액화 장치와, 대용량의 보일러를 장착해야 함으로써, 많은 설치 투자비용이 소비되는 문제점이 있었다.Therefore, in order to process the natural vaporization gas generated in the cargo tank of the liquefied gas carrier ship, the expensive re-liquefaction apparatus and a large-capacity boiler must be installed, there was a problem in that a large installation investment cost.

또한 소각기를 통해 버려지는 자연기화가스의 경우 에너지를 낭비하는 비효율적인 문제점이 있었다.In addition, there was an inefficient problem of wasting energy in the case of natural vaporization gas discarded through the incinerator.

상기 문제점을 해결하기 위하여 안출된 본 고안은 카고탱크에서 발생되는 자연기화가스를 이중연료 증기보일러에서 소비함으로써 자연기화가스를 효율적으로 사용할 수 있으며, 별도의 재기화 장치와 소각기를 설치하지 않아도 되는 액화가스 운반선박을 제공한다.The present invention devised to solve the above problems is to use the natural vaporization gas from the double-fuel steam boiler by using the natural vaporization gas generated in the cargo tank, liquefaction that does not need to install a separate regasification device and incinerator Provide gas carriers.

상기와 같은 기술적 과제를 해결하기 위해 본 고안은 저온지역을 운항하는 액화가스 운반선박으로서, 화물창 내에서 발생되는 자연기화가스와; 중질유 중 어느 하나를 이용하여 증기를 생성하는 이중연료 증기보일러와; 상기 이중연료 증기보일러에서 발생되는 증기를 이용하여 동력을 발생시키는 터빈과; 상기 터빈에 의해 작동되며, 전기를 생산하는 발전기를 갖는 터빈발전기; 및 상기 이중연료 보일러를 통하여 배출된 잉여 증기의 처리를 위한 콘덴서를 포함하는 것을 특징으로 하는 액화가스 운반선박을 제공한다.In order to solve the above technical problem, the present invention is a liquefied gas carrier ship operating in a low temperature region, and natural vaporization gas generated in the cargo hold; A dual fuel steam boiler for generating steam using any one of heavy oils; A turbine generating power by using steam generated by the dual fuel steam boiler; A turbine generator operated by the turbine, the turbine generator having a generator for producing electricity; And it provides a liquefied gas carrier ship comprising a condenser for the treatment of excess steam discharged through the double fuel boiler.

도 2는 본 고안에 따른 액화가스 운반선박의 일 실시예를 도시한 구성도이 다.Figure 2 is a block diagram showing an embodiment of a liquefied gas carrier ship according to the present invention.

도 2를 참조하면, 본 실시예는 상기 카고 탱크(100)에서 발생하는 자연기화가스를 압축하는 자연기화가스 컴프레서(110, BOG Compressor)와, 상기 자연기화가스와 중질유(HFO, Heavy Fuel Oil)를 이용하여 증기를 발생시키는 이중연료 증기보일러(120)와, 상기 이중연료 증기보일러(120)로부터 발생하는 증기를 이용하여 동력을 발생시키는 터빈(130)과, 상기 터빈(130)에 의해 작동되며 선박의 운행에 필요한 전기를 공급하는 터빈발전기(132)와, 중질유를 이용하여 작동되는 엔진(140)과, 상기 엔진(140)에 의해 작동되어 전기를 생산하는 엔진발전기(142)와, 상기 이중연료 보일러(120)를 통하여 배출된 잉여 증기의 처리를 위한 콘덴서(150)와, 중질유를 연료로 사용하며, 운행을 위한 메인 엔진(160)과, 상기 메인 엔진(160)에 의해 추진력을 발생시키는 프로펠러(162)를 포함한다.Referring to FIG. 2, the present embodiment is a natural vaporization gas compressor 110 (BOG Compressor) for compressing natural vaporization gas generated from the cargo tank 100, the natural vaporization gas and heavy fuel oil (HFO). It is operated by the dual fuel steam boiler 120 for generating steam by using, the turbine 130 for generating power using the steam generated from the double fuel steam boiler 120, and the turbine 130 Turbine generator 132 for supplying the electricity required for the operation of the ship, the engine 140 operated using heavy oil, the engine generator 142 operated by the engine 140 to produce electricity, and the double The condenser 150 for the treatment of surplus steam discharged through the fuel boiler 120, using heavy oil as a fuel, the main engine 160 for operation and generating a propulsion by the main engine 160 A propeller 162.

액화가스 운반선박의 작동관계를 설명하면, 본 실시예는 상기 카고 탱크(100) 내에 액화가스를 저장하고 소비지까지 운반하는 경우 중질유로 작동되는 상기 메인 엔진(160)을 작동시켜 상기 프로펠러(162)를 회전시킴으로써 액화가스 운반선박이 추진력을 얻어 운항을 시작한다.Referring to the operation relationship between the liquefied gas carrier ship, the present embodiment operates the main engine 160 operated with heavy oil when the liquefied gas is stored in the cargo tank 100 and transported to the consumer site the propeller 162 By rotating, the liquefied gas carrier starts to operate with propulsion.

그리고 운항 중 상기 카고 탱크(100) 내에서 자연기화된 자연기화가스를 자연기화가스 컴프레서(110)에서 압축시킨다. 그리고 고압의 자연기화가스는 이중연료 증기보일러(120)로 유입되고, 상기 이중연료 증기보일러(120)에서는 자연기화가스를 연소시켜 증기를 발생시킨다.The natural gas vaporized in the cargo tank 100 is compressed by the natural gas vapor compressor 110 during operation. In addition, the high pressure natural vaporization gas is introduced into the double fuel steam boiler 120, and the double fuel steam boiler 120 burns the natural vaporization gas to generate steam.

이렇게 발생된 증기는 터빈(130)을 작동시킨다. 그리고 터빈(130)과 연결된 터빈발전기(132)는 전기를 생산하게 된다. 이렇게 생산된 전기는 전기를 필요로 하는 곳에 공급된다.The steam generated in this way operates the turbine 130. And the turbine generator 132 connected to the turbine 130 will produce electricity. The electricity thus produced is supplied where it is needed.

또한 상기 이중연료 증기보일러(120)에서 생산된 증기는 난방 또는 빙제거에 사용되며, 증기를 필요로 하는 곳에 공급되며, 잉여증기는 콘덴서(150)에서 응축되며 폐루프(도시않음)를 통해 이중연료 증기보일러(120)로 재공급된다.In addition, the steam produced in the double fuel steam boiler 120 is used for heating or ice removal, is supplied to the place that needs steam, surplus steam is condensed in the condenser 150 and double through a closed loop (not shown) The fuel vapor boiler 120 is supplied again.

한편 본 실시예는 상기 카고 탱크(100) 내에 액화가스가 비어 있는 경우 중질유를 이용하여 상기 메인 엔진(160)을 작동시키고, 작동된 메인 엔진(160)에 의해 상기 프로펠러(162)를 회전시켜 액화가스 운반선박이 추진력을 얻어 운항을 시작한다.In the present embodiment, when the liquefied gas is empty in the cargo tank 100, the main engine 160 is operated using heavy oil, and the propeller 162 is rotated by the operated main engine 160 to liquefy. The gas carrier gets momentum and begins to operate.

그리고 상기 이중연료 증기보일러(120)는 중질유를 이용하여 작동된다. 이렇게 작동된 상기 이중연료 증기보일러(120)에서 생산된 증기는 난방과 빙제거 및 증기를 필요로 하는 곳에 공급되며, 잉여증기는 콘덴서(150)에서 응축되며 폐루프(도시않음)를 통해 이중연료 증기보일러(120)로 재공급된다.And the double fuel steam boiler 120 is operated using heavy oil. The steam produced by the dual fuel steam boiler 120 operated as described above is supplied to a place requiring heating, deicing, and steam, and surplus steam is condensed in the condenser 150 and double fuel through a closed loop (not shown). The steam boiler 120 is fed back.

또한 전기를 생산하기 위해 상기 엔진(140)에 중질유를 공급하여 상기 엔진(140)을 작동시킨다. 이렇게 작동된 상기 엔진(140)은 상기 엔진발전기(142)를 작동시키고, 상기 엔진발전기(142)에서 전기를 생산하게 된다. 이렇게 생산된 전기는 전기를 필요로 하는 곳에 공급된다.In addition, heavy oil is supplied to the engine 140 to produce electricity to operate the engine 140. The engine 140 thus operated operates the engine generator 142 and produces electricity in the engine generator 142. The electricity thus produced is supplied where it is needed.

따라서 이러한 상기 이중연료 보일러(120)는 자연 기화되어 발생하는 가스를 연료로 이용함으로써, 연료이용의 효율을 극대화할 수 있다.Therefore, the double fuel boiler 120 may maximize the efficiency of fuel use by using gas generated by natural vaporization as a fuel.

상기 카고 탱크(100)에서 발생하는 자연기화가스를 전량 처리할 수 있는 상 기 이중연료연소 보일러를 2대 설치하게 되면 별도로 고가의 재액화 장치와 가스연소장치를 장착할 필요가 없게 되어 과도한 초기 투자비를 절감할 수 있으며 또한 재액화 장치의 운전에 소모되는 많은 양의 전력도 필요 없게 되어 운항경비 또한 절감할 수 있다.Installing two double fuel combustion boilers capable of processing the entire amount of natural gas generated from the cargo tank 100 eliminates the need for additional expensive reliquefaction equipment and gas combustion equipment. In addition, the operation cost can be reduced by eliminating the large amount of power consumed to operate the reliquefaction apparatus.

본 고안에 의하면, 카고 탱크에서 발생되는 자연기화가스를 연료로 사용하여 자연기화가스를 효율적으로 사용할 수 있으며, 별도의 재기화 장치와 소각기 설치를 생략할 수 있어 제작비를 줄일 수 있는 효과를 제공한다.According to the present invention, the natural vaporization gas generated from the cargo tank can be used as fuel, and the natural vaporization gas can be efficiently used, and a separate regasification device and incinerator can be omitted, thereby reducing the production cost. .

Claims (1)

저온지역을 운항하는 액화가스 운반선박으로서,As a liquefied gas carrier that operates in low temperature areas, 화물창 내에서 발생되는 자연기화가스와 중질유 중 어느 하나를 이용하여 선박 내의 난방 및 빙제거에 사용되는 증기를 생성하는 이중연료 증기보일러;Double fuel steam boiler for generating steam used for heating and ice removal in the vessel by using any one of natural gas and heavy oil generated in the cargo hold; 상기 이중연료 증기보일러에서 발생되는 증기를 이용하여 동력을 발생시키는 터빈;A turbine generating power by using steam generated by the dual fuel steam boiler; 상기 터빈에 의해 작동되며, 상기 선박 내의 선원 생활에 제공되기 위한 전기를 생산하는 발전기를 갖는 터빈 발전기; 및A turbine generator operated by the turbine, the turbine generator having a generator for producing electricity for being provided to sailor life in the ship; And 상기 이중연료 보일러를 통하여 배출된 잉여 증기의 처리를 위한 콘덴서를 포함하는 것을 특징으로 하는 액화가스 운반선박.Liquefied gas carrier ship comprising a condenser for the treatment of excess steam discharged through the double fuel boiler.
KR2020070000572U 2007-01-12 2007-01-12 Ship for Liquid Natural Gas Carrier KR200441467Y1 (en)

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