WO2016122026A1 - 선박용 엔진의 연료공급 시스템 및 방법 - Google Patents
선박용 엔진의 연료공급 시스템 및 방법 Download PDFInfo
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- WO2016122026A1 WO2016122026A1 PCT/KR2015/001029 KR2015001029W WO2016122026A1 WO 2016122026 A1 WO2016122026 A1 WO 2016122026A1 KR 2015001029 W KR2015001029 W KR 2015001029W WO 2016122026 A1 WO2016122026 A1 WO 2016122026A1
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- Prior art keywords
- lng
- high pressure
- engine
- flow rate
- storage tank
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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
- B63H21/38—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
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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
- B63B25/14—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed pressurised
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B73/00—Combinations of two or more engines, not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0239—Pressure or flow regulators therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0287—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers characterised by the transition from liquid to gaseous phase ; Injection in liquid phase; Cooling and low temperature storage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
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- 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
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
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- 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
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/026—Special adaptations of indicating, measuring, or monitoring equipment having the temperature as the parameter
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- 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
- F17C3/022—Land-based bulk storage containers
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- 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
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- 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
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
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- 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
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
- F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0215—Mixtures of gaseous fuels; Natural gas; Biogas; Mine gas; Landfill gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0221—Fuel storage reservoirs, e.g. cryogenic tanks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0245—High pressure fuel supply systems; Rails; Pumps; Arrangement of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/06—Apparatus for de-liquefying, e.g. by heating
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- 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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/0439—Temperature
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- 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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/06—Controlling or regulating of parameters as output values
- F17C2250/0605—Parameters
- F17C2250/061—Level of content in the vessel
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- 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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/06—Controlling or regulating of parameters as output values
- F17C2250/0605—Parameters
- F17C2250/0636—Flow or movement of content
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- 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
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/02—Improving properties related to fluid or fluid transfer
- F17C2260/021—Avoiding over pressurising
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- 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
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/06—Fluid distribution
- F17C2265/066—Fluid distribution for feeding engines for propulsion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/05—Refrigerant levels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/13—Pump speed control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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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
Definitions
- the present invention relates to a fuel supply system and method for a marine engine, and more particularly, to transfer the LNG from the LNG storage tank of the vessel to the submersible pump pumped by a high pressure pump, vaporized and supplied to the engine provided in the vessel, the high pressure pump
- a vessel that can prevent the introduction of boil-off gas into the high pressure pump by controlling the temperature of the LNG at the front of the high pressure pump by controlling the flow rate of the returned LNG while ensuring the minimum flow rate of the submersible pump by returning the LNG to the LNG storage tank upstream.
- LNG Liquified Natural Gas
- LPG Liquified Petroleum Gas
- LNG liquefied Natural Gas
- Liquefied Natural Gas (hereinafter referred to as "LNG”) is a colorless and transparent liquid obtained by liquefying natural gas containing methane as its main component at about -162 °C. It has a volume of about / 600. Therefore, when liquefied and transported with LNG when transporting natural gas, it can be transported very efficiently.
- LNG Liquefied Natural Gas
- an LNG carrier that can transport (transport) LNG to sea is used.
- LNG-fueled ships are fueled by LNG fueled ships, and LNG fueled vessels are expected to become more active in line with the tightening emission regulations of international ships and the prospect of LNG price stability.
- the present invention is to propose a fuel supply system that can supply LNG to the engine of the ship as fuel, a smooth fuel supply to prevent the device abnormality.
- the submersible pump is provided in the LNG storage tank of the ship to supply LNG to the engine of the ship;
- a high pressure pump receiving the LNG from the submersible pump and compressing the high pressure
- a fuel supply system of a marine engine is provided by controlling the flow rate of the LNG returned through the return flow path to control the temperature of the LNG at the front of the high pressure pump.
- the flow rate control valve provided in the return flow path, the flow rate controller for controlling the flow rate of the LNG returned to the LNG storage tank to ensure the minimum flow rate of the submersible pump, and the temperature of the front end of the high-pressure pump And a temperature controller which senses and controls the flow rate of the LNG returned to the LNG storage tank to maintain the temperature of the front end of the high pressure pump lower than the LNG liquefaction temperature.
- the flow rate of the LNG returned to the LNG storage tank can be controlled.
- a fuel supply passage for supplying the LNG from the LNG storage tank to the engine, and a vaporizer provided in the fuel supply passage for vaporizing the LNG compressed from the high pressure pump and supplying the LNG to the engine.
- the engine may be a high pressure gas injection engine using high pressure gas compressed at a high pressure of 150 to 400 bar as a fuel.
- the LNG storage tank is a pressure resistant tank
- the design pressure may be set to hold the BOG or flash gas generated in the pressure resistant tank during the voyage of the vessel.
- the LNG is transferred from the LNG storage tank of the vessel to the submersible pump, pumped by a high pressure pump, vaporized and supplied to the engine provided in the vessel, the LNG storage tank upstream of the high pressure pump
- the fuel supply method of the marine engine is provided, by controlling the temperature of the LNG at the front of the high-pressure pump by controlling the flow rate of the returned LNG while ensuring a minimum flow rate of the submersible pump.
- the flow rate of the LNG returned to the LNG storage tank it can be controlled to maintain the temperature of the front end of the high-pressure pump lower than the liquefaction temperature of the LNG.
- the engine may be a high pressure gas injection engine using high pressure gas compressed at a high pressure of 150 to 400 bar as a fuel.
- the fuel supply system of the marine engine of the present invention transfers the LNG from the LNG storage tank to the submersible pump, pumps it into a high pressure pump, vaporizes the gas and supplies it to the engine provided in the vessel, and returns the LNG to the LNG storage tank upstream of the high pressure pump. While ensuring the minimum flow rate of the pump, by controlling the flow rate of the returned LNG to control the temperature of the LNG in front of the high pressure pump. By the LNG flow rate control to be returned in this way to maintain the supercooled state of the LNG in front of the high-pressure pump to prevent the introduction of the boil-off gas into the high-pressure pump, to prevent the device abnormality and smooth fuel supply can be made.
- FIG. 1 shows an example of a system for supplying LNG to an engine of a ship.
- FIG. 2 schematically shows a fuel supply system of a marine engine according to an embodiment of the present invention.
- FIG. 3 is a modified example of the embodiment of FIG.
- FIG 1 shows an example of a system for supplying LNG to the engine of the ship.
- the LNG stored in the storage tank T is pumped to the transfer pump 10 to be supplied to the high pressure pump 20 provided in the supply flow path L1, and the LNG compressed in the high pressure pump 20 is vaporized by the vaporizer 30. It is supplied as fuel to the engine E of the ship.
- a return flow path L2 capable of returning LNG to the storage tank T is provided.
- the amount of LNG returned to the tank through the return flow path L2 may be adjusted by controlling the valve 40 provided in the return flow path L2 in the flow rate controller 50 based on the amount of current used by the transfer pump 10.
- FIG. 2 schematically illustrates a fuel supply system of a marine engine according to an embodiment of the present invention, which is developed from the above-described fuel supply system.
- the fuel supply system of the present embodiment includes a submerged type submersible pump 100, which is provided in an LNG storage tank T of a ship and supplies LNG to an engine E of a ship, and a submersible pump 100. And a high pressure pump 200 which receives LNG from the high pressure pump and compresses it to a high pressure, and returns the LNG to the LNG storage tank T upstream of the high pressure pump 200 to secure a minimum flow rate of the submersible pump 100. While configuring RL, the flow rate of the LNG returned through the return flow path RL is controlled to control the temperature of the LNG at the front end of the high pressure pump 200.
- the return flow path RL branches upstream of the high pressure pump 200, but branches at a point close to the high pressure pump 200, thereby securing as much LNG flow rate as possible up to the front of the high pressure pump 200 and temperature by inflow of heat from outside.
- the synergistic effect can be reduced to prevent evaporation gasification.
- the flow path control valve 300 is provided in the return flow path RL, and the flow control valve 300 is controlled by the flow rate controller 310 and the temperature controller 320.
- the flow rate of LNG returned to T) is controlled.
- the flow rate controller 310 controls the flow rate of LNG returned to the LNG storage tank T in order to secure the minimum flow rate of the submersible pump 100.
- the flow controller 310 may use the amount of current used in the submersible pump 100 as a reference value for determining the LNG flow rate required for securing the minimum flow rate of the pump.
- the temperature controller 320 senses the temperature at the front end of the high pressure pump 200 so that the temperature at the front end of the high pressure pump 200 is lower than the liquefaction temperature of the LNG, that is, to maintain the supercooled state of the LNG at the front end of the high pressure pump 200.
- the flow rate of LNG to be returned to the LNG storage tank (T) is determined.
- the flow control valve 300 determines the larger of two output values as the flow rate of LNG to be returned to the LNG storage tank T, thereby converting the LNG into LNG. Can be returned to the storage tank (T). That is, even if the flow rate of the submersible pump 100 by the signal of the flow controller 310 is greater than the minimum flow rate, if the front end temperature of the high-pressure pump 200 is greater than the set value, the storage tank ( Increase the flow rate of the LNG returned to T) to maintain the supercooled state of the LNG in front of the high pressure pump (200).
- the minimum flow rate of the submersible pump 100 is 5 m3 / h
- the temperature of the front end of the high pressure pump 200 is higher than -155 ° C, which is a setting point lower than the saturation temperature
- the flow rate of LNG returned is By increasing the temperature of the front end of the high-pressure pump 200 is kept low.
- a control unit (not shown) for receiving the control signals from the flow controller 310 and the temperature controller 320 to control the flow control valve 300 may be further provided.
- the fuel supply flow path SL for supplying LNG from the LNG storage tank T to the engine E is supplied with the above-described high pressure pump 200 and LNG compressed by the high pressure pump 200 to vaporize the engine (
- carburetor 400 which supplies to E) is provided.
- the engine E of the present embodiment is a high-pressure gas injection engine using high pressure gas compressed at high pressure of 150 to 400 bar as a fuel, and may be an engine provided for propulsion of a ship or for power generation. It may be a GI engine.
- the ME-GI engine is a two-stroke, high-pressure natural gas injection engine, fueled with gas and oil, developed to reduce NOx and SOx emissions. Compression of 150 to 400 bar. Gas is supplied as fuel.
- ME-GI engines can reduce pollutant emissions by 23% for carbon dioxide, 80% for nitrogen compounds, and 95% for sulfur compounds compared to diesel engines of equivalent power.
- LNG compressed to 150 to 400 bar in the high-pressure pump 200 to supply to the high-pressure gas injection engine is a supercritical state, so that vaporization in the vaporizer 400 means supplying thermal energy, not phase change of LNG.
- the LNG storage tank T is provided as a pressure resistant tank, and a design pressure may be set to hold BOG or flash gas generated in the pressure resistant tank during the voyage of the ship.
- the design pressure of such a pressure resistant tank is designed to a gauge pressure of 2 bar or more, preferably 3 bar to 30 bar.
- the pressure resistant tank may be a standalone storage tank, particularly preferably an IMO C type tank.
- a second engine E2 receiving fuel BOG generated from the LNG storage tank T may be added.
- the second engine E2 is configured as a low pressure gas engine driven at a pressure lower than that of the above-described ship engine, that is, the first engine E1, and does not constitute a separate compressor by the internal pressure of the LNG storage tank T. It can be designed to supply BOG at the operating pressure required by the second engine.
- the second engine E2 may be, for example, a DF engine supplied with fuel gas of 3 to 20 bar, and a BOG supply line BL for fueling BOG from the LNG storage tank T to the second engine. And a heater 500 for heating the BOG is further provided.
- the LNG is transferred from the LNG storage tank T of the ship to the submersible pump 100, pumped by the high pressure pump 200, and vaporized and supplied to the engine E provided in the ship.
- the flow rate of the returned LNG is controlled to control the flow of LNG at the front end of the high pressure pump (200).
- the temperature is controlled, that is, the temperature of the front end of the high pressure pump 200 is controlled to be maintained in a subcooled state lower than the liquefaction temperature of LNG.
- the engine E of the ship supplied with fuel through the high pressure pump may be a high pressure gas injection engine using a high pressure gas compressed at high pressure of 150 to 400 bar as a fuel, for example, a ME-GI engine.
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- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
Claims (8)
- 선박의 LNG 저장탱크에 마련되어 LNG를 상기 선박의 엔진으로 공급하는 잠수 펌프;상기 잠수 펌프로부터 상기 LNG를 공급받아 고압으로 압축하는 고압 펌프; 및상기 고압 펌프 상류에서 상기 LNG를 상기 LNG 저장탱크로 복귀시키는 리턴 유로를 포함하되,상기 리턴 유로를 통해 복귀되는 상기 LNG의 유량을 제어하여 상기 고압 펌프의 전단에서 상기 LNG의 온도를 제어하는 것을 특징으로 하는 선박용 엔진의 연료공급 시스템.
- 제 1항에 있어서,상기 리턴 유로에 마련되는 유량제어 밸브;상기 잠수 펌프의 최소유량을 확보하기 위해 상기 LNG 저장탱크로 복귀되는 LNG의 유량을 제어하는 유량 제어기; 및상기 고압 펌프의 전단의 온도를 감지하여 상기 고압 펌프 전단의 온도를 상기 LNG의 액화 온도보다 낮게 유지하기 위해 상기 LNG 저장탱크로 복귀되는 LNG의 유량을 제어하는 온도 제어기를 포함하되,상기 유량제어 밸브는 상기 유량 제어기 및 온도 제어기의 제어에 의해 상기 LNG 저장탱크로 복귀되는 상기 LNG의 유량을 제어하는 것을 특징으로 하는 선박용 엔진의 연료공급 시스템.
- 제 1항에 있어서,상기 LNG 저장탱크로부터 상기 엔진으로 상기 LNG를 공급하는 연료공급 유로; 및상기 연료공급 유로에 마련되어 상기 고압 펌프로부터 압축된 상기 LNG를 공급받아 기화시켜 상기 엔진으로 공급하는 기화기를 더 포함하는 선박용 엔진의 연료공급 시스템.
- 제 1항에 있어서,상기 엔진은 150 내지 400 bar의 고압으로 압축된 고압가스를 연료로 사용하는 고압가스 분사엔진인 것을 특징으로 하는 선박용 엔진의 연료공급 시스템.
- 제 1항에 있어서,상기 LNG 저장탱크는 내압성 탱크이며, 상기 선박의 항해 기간 동안 상기 내압성 탱크에서 발생하는 BOG 또는 플래쉬 가스를 보유할 수 있도록 설계 압력이 설정되는 것을 특징으로 하는 선박용 엔진의 연료공급 시스템.
- 선박의 LNG 저장탱크에서 잠수 펌프로 LNG를 이송하여 고압 펌프로 펌핑하고, 기화시켜 상기 선박에 마련된 엔진으로 공급하되,상기 고압 펌프 상류에서 상기 LNG를 상기 LNG 저장탱크로 복귀시켜 상기 잠수 펌프의 최소유량을 확보하면서, 복귀되는 상기 LNG의 유량을 제어하여 상기 고압 펌프의 전단에서 상기 LNG의 온도를 제어하는 것을 특징으로 하는 선박용 엔진의 연료공급 방법.
- 제 6항에 있어서,상기 LNG 저장탱크로 복귀되는 상기 LNG의 유량을 제어하여, 상기 고압 펌프 전단의 온도를 상기 LNG의 액화 온도보다 낮게 유지하도록 제어하는 것을 특징으로 하는 선박용 엔진의 연료공급 방법.
- 제 6항에 있어서,상기 엔진은 150 내지 400 bar의 고압으로 압축된 고압가스를 연료로 사용하는 고압가스 분사엔진인 것을 특징으로 하는 선박용 엔진의 연료공급 방법.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201580078008.2A CN107407229B (zh) | 2015-01-30 | 2015-01-30 | 用于船舶发动机的燃料供应系统及方法 |
| PCT/KR2015/001029 WO2016122026A1 (ko) | 2015-01-30 | 2015-01-30 | 선박용 엔진의 연료공급 시스템 및 방법 |
| SG11201706177PA SG11201706177PA (en) | 2015-01-30 | 2015-01-30 | Fuel supply system and method for ship engine |
| EP15880207.4A EP3252296B1 (en) | 2015-01-30 | 2015-01-30 | Fuel supply system and method for ship engine |
| RU2017130498A RU2676509C1 (ru) | 2015-01-30 | 2015-01-30 | Система и способ подачи топлива к судовому двигателю |
| JP2017540086A JP6513815B2 (ja) | 2015-01-30 | 2015-01-30 | 船舶用エンジンの燃料供給システム及び燃料供給方法 |
| US15/547,446 US10654552B2 (en) | 2015-01-30 | 2015-01-30 | Fuel supply system and method for ship engine |
| PH12017501357A PH12017501357A1 (en) | 2015-01-30 | 2017-07-28 | Fuel supply system and method for ship engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2015/001029 WO2016122026A1 (ko) | 2015-01-30 | 2015-01-30 | 선박용 엔진의 연료공급 시스템 및 방법 |
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| Publication Number | Publication Date |
|---|---|
| WO2016122026A1 true WO2016122026A1 (ko) | 2016-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2015/001029 Ceased WO2016122026A1 (ko) | 2015-01-30 | 2015-01-30 | 선박용 엔진의 연료공급 시스템 및 방법 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US10654552B2 (ko) |
| EP (1) | EP3252296B1 (ko) |
| JP (1) | JP6513815B2 (ko) |
| CN (1) | CN107407229B (ko) |
| PH (1) | PH12017501357A1 (ko) |
| RU (1) | RU2676509C1 (ko) |
| SG (1) | SG11201706177PA (ko) |
| WO (1) | WO2016122026A1 (ko) |
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| CN107339610A (zh) * | 2017-08-25 | 2017-11-10 | 成都华气厚普机电设备股份有限公司 | 一种海船lng燃料高压供气系统及其控制方法 |
| CN107339611A (zh) * | 2017-08-25 | 2017-11-10 | 成都华气厚普机电设备股份有限公司 | 一种海船lng燃料低压供气系统及其控制方法 |
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| EP3252296B1 (en) * | 2015-01-30 | 2023-06-07 | Daewoo Shipbuilding & Marine Engineering Co., Ltd. | Fuel supply system and method for ship engine |
| US10603549B2 (en) * | 2017-05-06 | 2020-03-31 | Robert Steven Witkoff | Multipurpose low emission submersible engine and aquatic craft using same |
| FR3075754B1 (fr) * | 2017-12-22 | 2020-01-03 | Gaztransport Et Technigaz | Navire propulse au gaz liquefie |
| EP3913273A1 (de) * | 2020-05-19 | 2021-11-24 | Burckhardt Compression AG | Brenngasversorgungssystem und verfahren zum versorgen eines hochdruck-gaseinspritzmotors mit brenngas |
| CN112013267B (zh) * | 2020-08-11 | 2022-03-29 | 陕西融科低温设备有限公司 | 一种lng调峰用泵接力方式输出系统及方法 |
| CN112268220A (zh) * | 2020-09-16 | 2021-01-26 | 中海油能源发展股份有限公司 | 一种lng燃料动力船加注方法 |
| CN114183689A (zh) * | 2021-12-29 | 2022-03-15 | 广东华南特种气体研究所有限公司 | 一种气体自动充装系统及控制方法 |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20180022431A1 (en) | 2018-01-25 |
| SG11201706177PA (en) | 2017-08-30 |
| JP2018511724A (ja) | 2018-04-26 |
| CN107407229B (zh) | 2020-03-13 |
| RU2676509C1 (ru) | 2018-12-29 |
| EP3252296B1 (en) | 2023-06-07 |
| JP6513815B2 (ja) | 2019-05-15 |
| EP3252296A1 (en) | 2017-12-06 |
| US10654552B2 (en) | 2020-05-19 |
| CN107407229A (zh) | 2017-11-28 |
| EP3252296A4 (en) | 2018-07-11 |
| EP3252296C0 (en) | 2023-06-07 |
| PH12017501357A1 (en) | 2017-12-11 |
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