KR20130021204A - Electric propulsion type lng fuel supply vessel - Google Patents
Electric propulsion type lng fuel supply vessel Download PDFInfo
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- KR20130021204A KR20130021204A KR1020110083589A KR20110083589A KR20130021204A KR 20130021204 A KR20130021204 A KR 20130021204A KR 1020110083589 A KR1020110083589 A KR 1020110083589A KR 20110083589 A KR20110083589 A KR 20110083589A KR 20130021204 A KR20130021204 A KR 20130021204A
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- 239000000446 fuel Substances 0.000 title claims abstract description 87
- 230000005611 electricity Effects 0.000 claims abstract description 30
- 239000000295 fuel oil Substances 0.000 claims abstract description 26
- 238000011084 recovery Methods 0.000 claims abstract description 11
- 239000003990 capacitor Substances 0.000 claims abstract description 9
- 230000009977 dual effect Effects 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 claims abstract description 7
- 239000002828 fuel tank Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 abstract description 24
- 239000002737 fuel gas Substances 0.000 abstract description 6
- 230000008020 evaporation Effects 0.000 abstract description 4
- 238000001704 evaporation Methods 0.000 abstract description 4
- 230000001050 lubricating effect Effects 0.000 abstract description 4
- 239000003949 liquefied natural gas Substances 0.000 description 111
- 238000003860 storage Methods 0.000 description 9
- 239000000969 carrier Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
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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
- 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
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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
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/14—Use of propulsion power plant or units on vessels the vessels being motor-driven relating to internal-combustion engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J3/00—Driving of auxiliaries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system
- Y02T70/5218—Less carbon-intensive fuels, e.g. natural gas, biofuels
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
전기 추진식 LNG 연료급유선이 개시된다. 본 발명의 실시예에 따른 전기 추진식 LNG 연료급유선은 LNG 터미널로부터 LNG를 로딩하여, 정박중인 LNG연료 추진선박(2)에 LNG 급유선(1)이 접안하여 LNG연료를 급유하되, 급유 시에 발생하는 다량의 증발가스 및 회수가스를 연소하여 발전기를 구동시켜 전기를 생산하고, 생산된 전기를 축전기에 저장하여 축전된 전기를 이용해 운항함으로써, LNG 연료선박이 급유를 위해서 항구에서 멀리 떨어진 액화연료가스 저장시설로 가서 LNG를 공급 받는 시간과 비용을 절감하기 위해, 내항에 접안하여 화물 작업중이거나 대기중인 LNG 연료 추진 선박에 LNG 급유선이 나란히 접안하여 급유하는 시스템을 통하여 전체 비용을 감소시킬 수 있고, 항구에 정박하여 작업 중이거나 혹은 항내에 대기중인 LNG 연료 선박에 LNG 급유선을 이용하여 LNG를 급유함으로써, LNG 연료 선박의 추가적인 시간과 비용을 절감할 수 있고, DFDE(Dual Fuel Diesel Engine) 엔진으로 추진되는 급유선에, 급유 시 발생하는 다량의 증발/회수 가스를 연소하여 발전기를 돌려 전기를 생산하고, 전기 축전기(Battery)에 저장함으로써, 급유 이후에는 운항할 때 축전기에 저장된 전기를 사용함으로써 연료 소모를 줄일 수 있게 된다.An electric propulsion LNG fuel oil supply line is disclosed. An electric propulsion LNG fuel oil tanker according to an embodiment of the present invention loads LNG from an LNG terminal, and the LNG fueling vessel (1) is moored to the LNG fuel propulsion vessel (2) being moored to refuel the LNG fuel, which is generated during oil supply. By burning a large amount of boil-off gas and recovery gas to drive a generator to generate electricity, and storing the generated electricity in the capacitor to operate using the stored electricity, LNG fuel vessels store liquefied fuel gas far from the port for refueling In order to reduce the time and cost of supplying LNG to the facility, the total cost can be reduced through the system of lubricating LNG refueling vessels side by side with the LNG fuel propulsion vessels berthing in the inner port or in cargo operation or waiting. LNG fueled vessels by refueling LNG using LNG refueling vessels to the LNG fueled vessels at anchor or working Additional time and cost savings can be achieved, and fuel lines powered by a Dual Fuel Diesel Engine (DFDE) engine can be burned to produce electricity by burning a large amount of evaporation / recovery gas generated during refueling, and to generate electricity. By refueling, the fuel consumption can be reduced by using electricity stored in the capacitor during operation after refueling.
Description
본 발명은 전기 추진식 LNG 연료급유선에 관한 것으로서, 보다 상세하게는 LNG 연료선박이 급유를 위해서 항구에서 멀리 떨어진 액화연료가스 저장시설로 가서 LNG를 공급 받는 시간과 비용을 절감하기 위해, 내항에 접안하여 화물 작업중이거나 대기중인 LNG 연료 추진 선박에 LNG 급유선이 나란히 접안하여 급유하는 시스템을 통하여 전체 비용이 감소되도록 하는 전기 추진식 LNG 연료급유선에 관한 것이다.
The present invention relates to an electric propulsion LNG fuel oil tanker, and more particularly, in order to reduce the time and cost of the LNG fuel ship to go to the liquefied fuel gas storage facility far from the port for refueling to supply LNG, The present invention relates to an electric propulsion LNG fuel oil tanker which reduces the overall cost through a system of lubricating an LNG fuel tanker side by side with a LNG fuel propulsion ship in cargo operation or on standby.
선박에서 LNG를 연료로 사용하는 경우가 LNG 운반선을 제외하고는 전무하였으나, 근래 들어와 배출가스 환경 규제에 의한 친 환경 연료로 각광을 받고 있는 천연액화가스(LNG)를 연료로 사용하는 선박, 즉 LNG 연료 추진선박이 등장하였으며, 이는 계속 늘어나는 추세이다.Although LNG has never been used as a fuel in ships except LNG carriers, ships that use natural liquefied gas (LNG), which has recently been spotlighted as an eco-friendly fuel due to emission gas environmental regulations, that is, LNG Fuel propulsion ships have emerged, and they are on the rise.
현재, 노르웨이를 중심으로 근해를 운항하는 여객 및 화물 운반선이나 해양작업지원선인 PSV(Platform Supply Vessel) 등 짧은 구간을 운항하는 소형 선박에 LNG 연료 추진 선박이 이용되고 있다.Currently, LNG fuel propulsion vessels are used for small vessels that operate short distances, such as offshore passengers and cargo carriers, mainly in Norway, and platform supply vessels (PSVs), which are offshore operations support ships.
일반 선박에서 LNG를 공급받기 위해서는 안벽에 LNG를 공급할 수 있는 설비 등이 필요하다. 현재는 육상의 LNG 저장기지에서 LNG 연료 추진 선박이 직접 정박(Berthing)하거나, 선박의 항구 정박 동안 LNG 탱크를 탑재한 차량이 접근하여 LNG 급유를 하고 있는 실정이다.In order to receive LNG from a general vessel, a facility for supplying LNG to a quay wall is required. Currently, LNG fuel propulsion vessels are directly anchored at LNG storage bases on land, or vehicles loaded with LNG tanks are approaching and refueling LNG while the vessels are anchored.
LNG 연료 급유선이라는 선박의 개념이 도입되고 있으나 주로 소형선 위주로 개발되었으며, 대형 컨테이너선 또는 초대형 유조선과 같은 일반 상선에 대한 LNG 연료 공급 시스템을 가진 LNG 연료 급유선 모델을 제시하지 못하고 있는 실정이다.The concept of LNG fuel oil tanker is being introduced, but mainly developed for small vessels, and it has not been able to present a model of LNG fuel oil tanker with LNG fuel supply system for general commercial vessels such as large container ships or large tankers.
한편, LNG 연료 급유선에서는 LNG 연료 급유 중 발생하는 자연발생가스와 다량의 회수가스를 급유선 자체에서 재액화 하여 저장하는 모델이 제시되고 있다.On the other hand, the LNG fuel oil tanker has been proposed to re-liquefy and store the natural gas generated in the LNG fuel supply and a large amount of recovered gas in the fuel tank itself.
그러나, 이와 같은 종래기술들은 가까운 거리를 운항하는 소형선의 경우는 LNG 연료탱크의 용량이 작아, 급유용 트럭(Truck)을 이용하여 육상 LNG 연료 급유가 가능하나, 실제 운항거리가 길고 연료탱크의 용량이 큰 대형선의 경우에는 많은 수의 급유 트럭을 필요로 하고, 급유시간도 많이 소요되어 선박의 운항 지연을 초래하는 문제가 있었다.However, these conventional techniques are small in the case of a small ship operating a short distance, the capacity of the LNG fuel tank is small, it is possible to refuel onshore LNG fuel using a truck (Truck), but the actual operating distance is long and the capacity of the fuel tank In the case of this large large ship, a large number of refueling trucks are required, and a large amount of refueling time is required, resulting in a delay in the operation of the ship.
또한, LNG 저장 기지에서 급유하는 경우, LNG 연료 급유를 위해 LNG 연료 추진 선박이 추가적인 이동이 필요하며, 그에 따르는 별도의 시간과 비용이 소요되는 문제가 있었다.In addition, when refueling at the LNG storage base, the LNG fuel propulsion vessel needs additional movement for refueling the LNG fuel, there was a problem that requires a separate time and cost.
또한, 육상에 LNG 저장 기지가 있을 경우, LNG 연료 추진 선박이 접안하기 위한 접안설비와 LNG 연료 공급 설비가 별도 설치되어야 함으로, 추가적인 부두 접안 시설, 하역시설 등의 준비를 위한 막대한 비용이 소요되는 문제가 있었다.In addition, if there is an LNG storage base on land, the eyepiece facility and the LNG fuel supply facility for docking the LNG fuel propulsion vessel should be installed separately, which requires a huge cost for preparing additional dock docking facilities and unloading facilities. There was.
또한, 동시에 여러 척의 LNG 연료 추진 선박이 급유를 필요할 경우, 저장 기지의 부두 체증으로 인한 추가적인 대기 시간이 소요되는 문제가 있었다.In addition, when several LNG fuel propulsion vessels need to be refueled at the same time, there was a problem that additional waiting time is required due to the wharf congestion of the storage base.
또한, 출원번호 10-2009-0098986호에는 LNG를 급유하는 동안 발생하는 자연증발가스 및 다량의 회수가스를 LNG 급유선에서 재액화하여 저장하는 기술에 대해 개시되고 있으나, 이러한 종래기술은 고압압축기를 이용함으로써, 상당한 크기의 재액화 설비와 비용이 추가될 뿐만 아니라, 본 설비의 운전을 위한 추가 연료 소모가 발생되는 문제가 있고, 또한 상기 출원에서는 두 종류의 가스 압축기(Gas compressor)가 존재하고 고압 용기를 추가적으로 필요로 하는 등, 부수적인 설비가 더 필요하여 제조 비용이 상승하는 문제가 있었다.In addition, Patent Application No. 10-2009-0098986 discloses a technique for re-liquefying and storing natural evaporated gas and a large amount of recovered gas generated during LNG refueling in an LNG fuel tanker, but such a conventional technique uses a high pressure compressor. This not only adds considerable size of reliquefaction plant and costs, but also causes the problem of additional fuel consumption for the operation of the plant, and also in this application there are two types of gas compressors and high pressure vessels. There is a problem in that the additional cost is required, such as additionally needed to increase the manufacturing cost.
이 밖에도 LNG 연료 급유선으로는 도 1에서와 같은 전기 추진 시스템이 장착된 선박이 이용되고 있다.In addition, a vessel equipped with the electric propulsion system as shown in FIG. 1 is used as the LNG fuel oil supply line.
도 1에서와 같은 전기 추진 시스템에서는 엔진과 프로펠러를 샤프트로 직접 연결하는 종래의 추진 시스템과는 달리 엔진(110)이 구동하여 발전기(112)를 구동시키고, 상기 발전기(112)에 의해 생산되는 전기가 모터(114)를 구동시키며, 상기 모터(114)가 샤프트(116)를 통해 프로펠러(118)를 구동시키게 된다.In the electric propulsion system as shown in FIG. 1, unlike the conventional propulsion system for directly connecting the engine and the propeller to the shaft, the
선박에 상기와 같은 전기 추진 시스템을 적용하는 경우 선박의 공간활용도가 증대되고, 진동, 소음 및 연료소비량을 감소시킬 수 있으며, 배출가스의 감소로 환경오염을 줄일 수 있는 장점이 있어 현재 당업계는 상기 전기추진 시스템의 개발에 박차를 가하고 있다.When the electric propulsion system as described above is applied to the vessel, the space utilization of the vessel can be increased, vibration, noise and fuel consumption can be reduced, and environmental pollution can be reduced by reducing the emission gas. The development of the electric propulsion system is spurring.
종래에는 상기 발전기(112)를 구동시키기 위한 엔진(110)으로 이중 연료 엔진을 사용하였다. 상기 이중 연료 엔진이란 퓨얼 오일(fuel oil) 및 가스(gas) 중 어느 하나 이상을 연료로 하여 구동되는 4행정 디젤 엔진을 말하는 것으로, 주로 액화 천연가스 운반선에 적용되며, 이 경우, 액화 천연가스 운반선의 저장탱크에서 자연적으로 기화된 가스를 연료의 일부로 사용하는 엔진을 말한다.In the related art, a dual fuel engine was used as the
그러나, 상기와 같은 전기 추진 시스템을 선박에 적용할 경우 4행정 디젤 엔진의 실린더 수가 많아 선체 공간 활용도가 낮고, 운전자들의 실린더 보수 및 유지에 많은 어려움이 있었다.
However, when the electric propulsion system as described above is applied to a vessel, the number of cylinders of the four-stroke diesel engine is large, the hull space utilization is low, and there are many difficulties in maintaining and maintaining the cylinders of the drivers.
종래기술의 문제점을 해결하기 위해 안출된 본 발명의 목적은 LNG 연료선박이 급유를 위해서 항구에서 멀리 떨어진 액화연료가스 저장시설로 가서 LNG를 공급 받는 시간과 비용을 절감하기 위해, 내항에 접안하여 화물 작업중이거나 대기중인 LNG 연료 추진 선박에 LNG 급유선이 접안하여 급유하는 시스템을 통하여 전체 비용을 감소시키도록 하는 전기 추진식 LNG 연료급유선을 제공함에 있다.An object of the present invention devised to solve the problems of the prior art is to dock the cargo in the inner port to reduce the time and cost of LNG fuel ships go to the liquefied fuel gas storage facility far from the port for refueling the supply of LNG The present invention provides an electric propulsion LNG fuel oil tanker to reduce the overall cost through a system in which the LNG fueling vessel is docked and refueled to the LNG fuel propulsion vessel in operation or in standby.
본 발명의 다른 목적은 항구에 정박하여 작업 중이거나 혹은 항내에 대기중인 LNG 연료 선박에 LNG 급유선을 이용하여 LNG를 급유함으로써, LNG 연료 선박의 추가적인 시간과 비용을 절감하도록 된 전기 추진식 LNG 연료급유선을 제공함에 있다.Another object of the present invention is to provide an electric propulsion LNG fuel oil tanker to reduce the additional time and cost of the LNG fuel vessel by lubricating the LNG fuel vessel to the LNG fuel vessel that is in operation or waiting in the harbor. In providing.
본 발명의 또 다른 목적은 DFDE(Dual Fuel Diesel Engine) 엔진으로 추진되는 급유선에, 급유 시 발생하는 다량의 증발/회수 가스를 연소하여 발전기를 돌려 전기를 생산하고, 전기 축전기(Battery)에 저장함으로써, 급유 이후에는 운항할 때 축전기에 저장된 전기를 사용함으로써 연료 소모를 줄일 수 있도록 하는 전기 추진식 LNG 연료급유선을 제공함에 있다.
Still another object of the present invention is to produce electricity by burning a large amount of evaporation / recovery gas generated during refueling in a refueling line propelled by a DFDE (Dual Fuel Diesel Engine) engine to generate electricity, and storing it in an electric battery. In addition, after refueling, the present invention provides an electric propulsion LNG fuel oil supply line that can reduce fuel consumption by using electricity stored in a capacitor.
본 발명의 일 측면에 따르면, LNG 터미널로부터 LNG를 로딩하여, 정박중인 LNG연료 추진선박에 LNG 급유선이 접안하여 LNG연료를 급유하되, 급유 시에 발생하는 다량의 증발가스 및 회수가스를 연소하여 발전기를 구동시켜 전기를 생산하고, 생산된 전기를 축전기에 저장하여 축전된 전기를 이용해 운항하는 것을 특징으로 하는 전기 추진식 LNG 연료급유선의 급유시스템이 제공될 수 있다.According to an aspect of the present invention, by loading LNG from the LNG terminal, the LNG fueling vessel is moored to the LNG fuel propulsion vessel moored to refuel the LNG fuel, by burning a large amount of evaporated gas and recovery gas generated during the refueling generator It is possible to provide an electric propulsion system of the electric propulsion LNG fuel oil supply line, characterized in that to drive the electricity to produce, and to store the produced electricity in the capacitor to operate using the stored electricity.
여기서, 상기 LNG연료 추진선박의 연료탱크 및 LNG연료 공급관에서 발생하는 증발 가스 및 회수가스를 연료로 하는 LNG 급유선의 DFDE엔진을 구동하여 전기를 생산할 수 있다.Here, the electricity can be produced by driving the DFDE engine of the LNG refueling vessel using the evaporated gas and the recovered gas generated in the fuel tank and the LNG fuel supply pipe of the LNG fuel propulsion vessel.
본 발명의 다른 측면에 따르면, LNG 급유선이 LNG연료 추진선박에 접안하여 LNG연료 공급관 및 증발가스 회수관을 연결하는 단계; LNG급유선의 연료 탱크 내의 LNG를 연료탱크 펌프를 이용해 연료 LNG연료 추진선박의 연료탱크로 이송하는 단계; LNG연료 추진선박의 연료탱크 및 LNG연료 공급관에서 발생하는 증발 가스를 이용해 LNG 급유선의 DFDE(Dual Fuel Diesel Engine) 엔진을 구동하여 전기를 생산 및 축전하는 단계; 및 축전된 전기를 이용해 LNG 급유선이 운항하는 단계;를 포함하는 LNG 연료급유선의 전기 추진식 운항방법이 제공될 수 있다.
According to another aspect of the invention, the LNG fueling vessel is docked to the LNG fuel propulsion vessel connecting the LNG fuel supply pipe and the boil-off gas recovery pipe; Transferring the LNG in the fuel tank of the LNG refueling vessel to the fuel tank of the fuel LNG fuel propulsion vessel using a fuel tank pump; Producing and accumulating electricity by driving a DFDE (Dual Fuel Diesel Engine) engine of an LNG refueler using an evaporative gas generated from a fuel tank and an LNG fuel supply pipe of an LNG fuel propulsion vessel; And an LNG fuel oil tanker is operated using the stored electricity. An electric propulsion method of the LNG fuel oil tanker may be provided.
본 발명은 LNG 연료선박이 급유를 위해서 항구에서 멀리 떨어진 액화연료가스 저장시설로 가서 LNG를 공급 받는 시간과 비용을 절감하기 위해, 내항에 접안하여 화물 작업중이거나 대기중인 LNG 연료 추진 선박에 LNG 급유선이 나란히 접안 하여 급유하는 시스템을 통하여 전체 비용을 감소시키는 효과를 갖는다.According to the present invention, in order to reduce the time and cost of supplying LNG to a liquefied fuel gas storage facility far from a port for refueling an LNG fuel vessel, an LNG refueling vessel may be provided to an LNG fuel propulsion vessel that is in operation or waiting for cargo in the inner port. Through lubrication system docked side by side has the effect of reducing the overall cost.
또한, 본 발명은 항구에 정박하여 작업 중이거나 혹은 항내에 대기중인 LNG 연료 선박에 LNG 급유선을 이용하여 LNG를 급유함으로써, LNG 연료 선박의 추가적인 시간과 비용을 절감하는 효과를 갖는다.In addition, the present invention has the effect of reducing the additional time and cost of the LNG fuel vessel by lubricating the LNG using the LNG fueling vessel to the LNG fuel vessel in operation or waiting in the harbor.
또한, 본 발명은 DFDE(Dual Fuel Diesel Engine) 엔진으로 추진되는 급유선에, 급유 시 발생하는 다량의 증발/회수 가스를 연소하여 발전기를 돌려 전기를 생산하고, 전기 축전기(Battery)에 저장함으로써, 급유 이후에는 운항할 때 축전기에 저장된 전기를 사용함으로써 연료 소모를 줄일 수 있는 효과를 갖는다.
In addition, the present invention burns a large amount of evaporation / recovery gas generated during refueling to the fuel oil tank propulsion by the DFDE (Dual Fuel Diesel Engine) engine to turn the generator to produce electricity, stored in an electric battery (battery), Subsequently, it is possible to reduce fuel consumption by using the electricity stored in the capacitor during operation.
도 1은 종래의 전기 추진 시스템이 장착된 선박의 개략도.
도 2는 본 발명의 실시예에 따른 전기 추진식 LNG 연료급유선의 급유 시스템을 도시한 개략도.
도 3은 본 발명의 실시예에 따른 LNG 연료급유선의 전기 추진식 항해방법을 설명하기 위한 흐름도.1 is a schematic view of a vessel equipped with a conventional electric propulsion system.
Figure 2 is a schematic diagram showing a refueling system of the electric propulsion LNG fuel oil supply line according to an embodiment of the present invention.
Figure 3 is a flow chart for explaining the electric propulsion navigation method of the LNG fuel oil supply line according to an embodiment of the present invention.
이하, 본 발명의 바람직한 실시예에 대해 첨부된 도면을 참조하여 자세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 2는 본 발명의 실시예에 따른 전기 추진식 LNG 연료급유선의 급유 시스템을 도시한 개략도이다.Figure 2 is a schematic diagram showing a refueling system of an electric propulsion LNG fuel oil supply line according to an embodiment of the present invention.
도 2를 참조하면, LNG 터미널로부터 LNG를 로딩하여, 정박중인 LNG연료 추진선박(2)의 현측에 접안하여 LNG연료를 급유하는 것을 특징으로 하는 전기 추진식 LNG 연료급유선이 개시된다.Referring to FIG. 2, an electric propulsion LNG fuel oil tanker is provided, which loads LNG from an LNG terminal and feeds LNG fuel by moored to the current side of the anchored LNG
여기서, 상기 LNG연료 추진선박(2)의 연료탱크(6) 및 LNG연료 공급관(5)에서 발생하는 증발 가스를 이용해 LNG 급유선(1)의 DFDE엔진(8)을 구동하여 전기를 생산할 수 있다.Here, electricity may be produced by driving the DFDE engine 8 of the LNG fueling vessel 1 using the evaporated gas generated in the fuel tank 6 and the LNG fuel supply pipe 5 of the LNG
이때, 상기 DFDE엔진(8)을 구동하여 생산된 전기를 LNG 급유선(1)의 전력으로 사용하게 된다.At this time, the electricity produced by driving the DFDE engine 8 is used as the power of the LNG oil supply line (1).
이와 같이 생산된 전력을 LNG 급유선(1)에 사용함으로써, 기존의 LNG 재기화 장비에서와 같은 대형 장비의 사용이 필요하지 않고, 전력을 생성하기 위한 추가적 비용손실(연료)을 절감할 수 있게 된다.
By using the electric power thus produced in the LNG tanker 1, it is not necessary to use large equipment as in the existing LNG regasification equipment, and it is possible to reduce additional cost loss (fuel) for generating electric power. .
이하, 본 발명의 실시예에 따른 LNG 연료급유선의 전기 추진식 항해방법에 대해 설명하면 다음과 같다. Hereinafter, the electric propulsion navigation method of the LNG fuel oil tanker according to an embodiment of the present invention will be described.
도 3은 본 발명의 실시예에 따른 LNG 연료급유선의 전기 추진식 항해방법을 설명하기 위한 흐름도이다.3 is a flow chart for explaining the electric propulsion navigation method of the LNG fuel oil supply line according to an embodiment of the present invention.
도 3을 참조하면, LNG 급유선(1)이 LNG연료 추진선박(2)의 현측에 접안하여 LNG연료 공급관(5) 및 증발가스 회수관(7)을 연결한다.Referring to FIG. 3, the LNG fueling vessel 1 docks at the side of the LNG
그리고, LNG급유선(1)의 연료 탱크(3) 내의 LNG를 연료탱크 펌프(4)를 이용해 연료 LNG연료 추진선박(2)의 연료탱크(6)로 이송한다.Then, the LNG in the fuel tank 3 of the LNG fueling vessel 1 is transferred to the fuel tank 6 of the fuel LNG
이때, 상기 LNG연료 추진선박(2)의 연료탱크(6) 및 LNG연료 공급관(5)에서 발생하는 증발 가스를 이용해 LNG급유선(1)의 DFDE(Dual Fuel Diesel Engine) 엔진(8)을 구동하여 전기를 생산한다.At this time, the DFDE (Dual Fuel Diesel Engine) engine 8 of the LNG fueling vessel 1 is driven by using the boil-off gas generated from the fuel tank 6 and the LNG fuel supply pipe 5 of the LNG
이때, 생산된 전기를 축전기(9)에 저장하며, LNG 급유선(1)의 전력으로 사용하게 된다.
At this time, the produced electricity is stored in the capacitor 9, and used as the power of the LNG oil supply line (1).
앞서 살펴본 바와 같은 본 발명은 LNG 연료선박이 급유를 위해서 항구에서 멀리 떨어진 액화연료가스 저장시설로 가서 LNG를 공급 받는 시간과 비용을 절감하기 위해, 내항에 접안하여 화물 작업중이거나 대기중인 LNG 연료 추진 선박에 LNG 급유선이 나란히 접안하여 급유하는 시스템을 통하여 전체 비용을 감소시킬 수 있게 된다.As described above, the present invention provides an LNG fuel propulsion ship that is in operation or waiting for cargo in the inner port to reduce the time and cost of supplying LNG to a liquefied fuel gas storage facility far from the port for refueling the LNG fuel vessel. LNG refueling vessels can be moored side by side to reduce overall costs.
또한, 본 발명은 항구에 정박하여 작업 중이거나 혹은 항내에 대기중인 LNG 연료 선박에 LNG 급유선을 이용하여 LNG를 급유함으로써, LNG 연료 선박의 추가적인 시간과 비용을 절감할 수 있고, DFDE(Dual Fuel Diesel Engine) 엔진으로 추진되는 급유선에, 급유 시 발생하는 다량의 증발/회수 가스를 연소하여 발전기를 돌려 전기를 생산하고, 전기 축전기(Battery)에 저장함으로써, 급유 이후에는 운항할 때 축전기에 저장된 전기를 사용함으로써 연료 소모를 줄일 수 있게 된다.
In addition, the present invention can reduce the additional time and cost of the LNG fuel vessel, by refueling the LNG fuel vessel using the LNG fuel ship to the LNG fuel vessel in operation or waiting in the port, DFDE (Dual Fuel Diesel) An oil supply line driven by an engine burns a large amount of evaporation / recovery gas generated during refueling to turn a generator to generate electricity, and store it in an electric battery. By using it, fuel consumption can be reduced.
1: LNG급유선
2: LNG연료 추진선박
3: 급유선의 연료탱크
4: 연료탱크 펌프
5: LNG연료 공급관
6: 추진선박의 연료탱크
7: 증발가스 회수관
8: DFDE엔진
9: 축전기1: LNG oil tanker
2: LNG fuel propulsion ship
3: fuel tank of oil tanker
4: fuel tank pump
5: LNG fuel supply pipe
6: propulsion tank fuel tank
7: boil-off gas recovery pipe
8: DFDE engine
9: capacitor
Claims (4)
LNG is loaded from the LNG terminal, and the LNG fueling vessel 1 is moored to the moored LNG fuel propulsion vessel 2 to supply LNG fuel. The electric propulsion LNG fuel oil supply line, characterized in that for producing electricity, and storing the produced electricity in the capacitor to operate using the stored electricity.
상기 LNG연료 추진선박(2)의 연료탱크(6) 및 LNG연료 공급관(5)에서 발생하는 증발 가스 및 회수가스를 연료로 하는 LNG 급유선(1)의 DFDE엔진(8)을 구동하여 전기를 생산하는 것을 특징으로 하는 전기 추진식 LNG 연료급유선.
The method of claim 1,
Electricity is generated by driving the DFDE engine 8 of the LNG refueling vessel 1 fueled by the boil-off and recovery gas generated from the fuel tank 6 and the LNG fuel supply pipe 5 of the LNG fuel propulsion vessel 2. An electric propulsion LNG fuel oil supply line, characterized in that.
LNG급유선의 연료 탱크 내의 LNG를 연료탱크 펌프를 이용해 연료 LNG연료 추진선박의 연료탱크로 이송하는 단계;
LNG연료 추진선박의 연료탱크 및 LNG연료 공급관에서 발생하는 증발 가스를 이용해 LNG 급유선의 DFDE(Dual Fuel Diesel Engine) 엔진을 구동하여 전기를 생산 및 축전하는 단계; 및
축전된 전기를 이용해 LNG 급유선이 운항하는 단계;
를 포함하는 LNG 연료급유선의 전기 추진식 운항방법.
Connecting the LNG fuel supply pipe and the boil-off gas recovery pipe by the LNG fueling vessel moored to the LNG fuel propulsion ship;
Transferring the LNG in the fuel tank of the LNG refueling vessel to the fuel tank of the fuel LNG fuel propulsion vessel using a fuel tank pump;
Producing and accumulating electricity by driving a DFDE (Dual Fuel Diesel Engine) engine of an LNG refueler using an evaporative gas generated from a fuel tank and an LNG fuel supply pipe of an LNG fuel propulsion vessel; And
A step of operating the LNG refueler using the stored electricity;
Electric propulsion operation method of LNG fuel oil supply line comprising a.
상기 DFDE엔진(8)을 구동하여 생산된 전기를 축전기(9)에 저장하며, LNG 급유선(1)의 전력으로 사용하는 것을 특징으로 하는 LNG 연료급유선의 전기 추진식 운항방법.
The method of claim 3,
An electric propulsion operation method of an LNG fuel oil supply line, characterized in that for storing the electricity produced by driving the DFDE engine (8) in a capacitor (9), and used as the power of the LNG oil supply line (1).
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| KR1020110083589A KR20130021204A (en) | 2011-08-22 | 2011-08-22 | Electric propulsion type lng fuel supply vessel |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014209029A1 (en) * | 2013-06-26 | 2014-12-31 | 대우조선해양 주식회사 | System and method for treating boil-off gas in ship |
| KR20150052748A (en) * | 2013-11-06 | 2015-05-14 | 대우조선해양 주식회사 | Power plant using lng carrier and power generation method |
| KR20150063238A (en) * | 2013-11-29 | 2015-06-09 | 대우조선해양 주식회사 | Power plant using a tanker and power generation method |
| US9739420B2 (en) | 2012-10-24 | 2017-08-22 | Daewoo Shipbuilding & Marine Engineering Co., Ltd. | Liquefied gas treatment system for vessel |
| CN110877655A (en) * | 2019-11-05 | 2020-03-13 | 沪东中华造船(集团)有限公司 | Large-scale marine generator base of LNG |
-
2011
- 2011-08-22 KR KR1020110083589A patent/KR20130021204A/en not_active Ceased
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9739420B2 (en) | 2012-10-24 | 2017-08-22 | Daewoo Shipbuilding & Marine Engineering Co., Ltd. | Liquefied gas treatment system for vessel |
| WO2014209029A1 (en) * | 2013-06-26 | 2014-12-31 | 대우조선해양 주식회사 | System and method for treating boil-off gas in ship |
| KR20150001600A (en) * | 2013-06-26 | 2015-01-06 | 대우조선해양 주식회사 | System and method for treating boil-off gas for a ship |
| US10518859B2 (en) | 2013-06-26 | 2019-12-31 | Daewoo Shipbuilding & Marine Engineering Co., Ltd. | System and method for treating boil-off gas in ship |
| KR20150052748A (en) * | 2013-11-06 | 2015-05-14 | 대우조선해양 주식회사 | Power plant using lng carrier and power generation method |
| KR20150063238A (en) * | 2013-11-29 | 2015-06-09 | 대우조선해양 주식회사 | Power plant using a tanker and power generation method |
| CN110877655A (en) * | 2019-11-05 | 2020-03-13 | 沪东中华造船(集团)有限公司 | Large-scale marine generator base of LNG |
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