WO2019050004A1 - Navire et procédé de gestion de température/pression de gpl - Google Patents

Navire et procédé de gestion de température/pression de gpl Download PDF

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Publication number
WO2019050004A1
WO2019050004A1 PCT/JP2018/033258 JP2018033258W WO2019050004A1 WO 2019050004 A1 WO2019050004 A1 WO 2019050004A1 JP 2018033258 W JP2018033258 W JP 2018033258W WO 2019050004 A1 WO2019050004 A1 WO 2019050004A1
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WO
WIPO (PCT)
Prior art keywords
lpg
fuel
engine
pressure
fuel tank
Prior art date
Application number
PCT/JP2018/033258
Other languages
English (en)
Japanese (ja)
Inventor
拓海 野崎
俊宏 ▲高▼木
宏之 武田
尚子 印藤
和也 萩原
雄輝 宍粟
崇嗣 安部
直樹 成島
Original Assignee
川崎重工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 川崎重工業株式会社 filed Critical 川崎重工業株式会社
Priority to KR1020207009181A priority Critical patent/KR102316444B1/ko
Priority to SG11202001766UA priority patent/SG11202001766UA/en
Priority to CN201880056759.8A priority patent/CN111065576B/zh
Publication of WO2019050004A1 publication Critical patent/WO2019050004A1/fr

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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 
    • B63B11/00—Interior subdivision of hulls
    • B63B11/04—Constructional features of bunkers, e.g. structural fuel tanks, or ballast tanks, e.g. with elastic walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
    • B63B17/0027—Tanks for fuel or the like ; Accessories therefor, e.g. tank filler caps
    • 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
    • B63H21/12—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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
    • 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
    • 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
    • F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
    • F02M21/0212—Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
    • 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
    • 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
    • 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
    • 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
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • 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
    • 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
    • F17C6/00—Methods and apparatus for filling vessels not under pressure with liquefied or solidified gases
    • 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
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, e.g. LPG, GPL
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • 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
    • F17C2250/043—Pressure
    • 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
    • F17C2250/0689—Methods for controlling or regulating
    • 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
    • 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
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships
    • 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
    • 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 ship including a propulsion engine fueled by LPG.
  • the fuel for the propulsion engine is generally a fuel oil such as heavy oil or light oil, or LNG (Liquefied Natural Gas).
  • LNG Liquefied Natural Gas
  • Patent Document 1 discloses a ship for supplying LPG in liquid form from a fuel tank to a propulsion engine.
  • LPG which is the main component of propane gas, liquid at atmospheric pressure
  • the fuel tank it is necessary to keep the fuel tank at -42 ° C. or less. Therefore, it is conceivable to use the fuel tank as a pressure vessel and to change the temperature of the LPG in the fuel tank following the atmospheric temperature. That is, the high pressure in the fuel tank keeps the LPG in equilibrium.
  • the pressure of the air layer in the fuel tank (the saturated vapor pressure in the case of only PG in which the components of the air layer are vaporized) largely changes depending on the temperature of the LPG in the fuel tank.
  • the pressure width to which the pump should increase is large, and when the temperature of the LPG in the fuel tank is high, the pressure width to which the pump should increase is small.
  • the LPG supply pressure is used in the engine The pressure can not be increased to the required pressure, and the engine may not operate smoothly.
  • an object of this invention is to provide the ship which can operate a propulsion engine smoothly at the time of LPG use start.
  • a ship comprises a fuel tank storing LPG so that the temperature of LPG changes following the atmospheric temperature, a propulsion engine using LPG as fuel, and LPG to the engine from the fuel tank
  • a fuel supply line for supplying fuel
  • a pump provided in the fuel supply line
  • a fuel recovery line for recovering unused LPG from the engine to the fuel tank
  • pressure of an air layer in the fuel tank A pressure gauge and a control device for controlling the number of revolutions of the pump, wherein the control device controls the pressure detected by the pressure gauge during a period when the LPG is not being used as a fuel or less.
  • the pump is operated to circulate LPG in the fuel tank to the fuel tank via the engine.
  • a ship comprises a fuel tank for storing LPG so that the temperature of LPG changes following the atmospheric temperature, a propulsion engine using LPG as fuel, and LPG to the engine from the fuel tank
  • a fuel supply line for supplying fuel, a pump provided in the fuel supply line, a fuel recovery line for recovering unused LPG from the engine to the fuel tank, and a branch from the fuel supply line downstream of the pump
  • the fuel recovery line or a bypass line connected to the fuel tank, a pressure gauge for detecting the pressure of the air layer in the fuel tank, and a control device for controlling the number of revolutions of the pump; Operates the pump when the pressure detected by the pressure gauge is below a predetermined value while LPG is not being used as fuel,
  • the LPG in serial fuel tank through the engine and / or the bypass line is circulated to the fuel tank.
  • a fuel tank storing LPG such that the temperature of LPG changes following the atmospheric temperature, a propulsion engine using LPG as fuel, and the fuel tank Applied to a ship including a fuel supply line for supplying LPG from the engine to the engine, a pump provided in the fuel supply line, and a fuel recovery line for recovering unused LPG from the engine to the fuel tank LPG temperature / pressure management method, wherein LPG is not used as fuel under the condition that the pressure of the air layer in the fuel tank falls below a predetermined value, the temperature of LPG in the fuel tank falls below the predetermined value
  • the pump is operated when the above condition and / or the condition that the pump operation command member is operated by a crew member is satisfied, and the fuel tank is The LPG through the engine is circulated into the fuel tank.
  • the pump if the pressure of the air layer is low while LPG is not being used as fuel, the pump operates to circulate LPG.
  • the temperature of the LPG rises with heat input from the pump as it passes through the pump. In addition, it can rise by the heat input from an engine also at the time of passage of an engine.
  • the temperature of LPG in the fuel tank can be raised and the pressure of the air layer can also be raised by returning the temperature of the LPG heated in the circulation process back to the fuel tank. Therefore, at the start of use of LPG, the pump can boost the supply pressure of LPG to the pressure required by the engine, and the engine can be operated smoothly.
  • the ship which can operate a propulsion engine smoothly can be provided at the time of LPG use start.
  • FIG. 1 shows a ship according to the first embodiment.
  • the ship 1 includes a fuel tank 2 storing LPG so that the temperature of the LPG changes following the atmospheric temperature, and a propulsion engine 11 using the LPG as fuel.
  • the main component of LPG may be propane (propane gas) or butane (butane gas).
  • the fuel tank 2 is configured of a storage tank 21 having a relatively large volume and a service tank 22 having a relatively small volume.
  • the storage tank 21 and the service tank 22 are both pressure vessels whose pressure resistance is higher than atmospheric pressure.
  • the storage tank 21 and the service tank 22 are connected to each other by a relay line 26.
  • the LPG is introduced into the storage tank 21 from the LPG supply source through the fuel introduction line 23.
  • the LPG supply source may be a cargo tank mounted on the ship 1, or may be an LPG supply facility on land or an LPG fuel supply ship.
  • a pump 25 is installed inside the storage tank 21.
  • the number of pumps 25 may be one or more.
  • the upstream end of the relay line 26 is connected to the pump 25.
  • the downstream end of the relay line 26 opens in the service tank 22.
  • the LPG is supplied from the storage tank 21 to the service tank 22 through the relay line 26 by the pump 25.
  • the pump 25 may be provided in the middle of the relay line 26 outside the storage tank 21.
  • the storage tank 21 is not provided with means (for example, a heat insulating material) for maintaining the LPG at a low temperature, and the temperature of the LPG in the storage tank 21 changes following the atmospheric temperature.
  • LPG introduced from the LPG source is often about -42 ° C. when LPG is propane gas. Therefore, the fuel introduction line 23 is provided with a heater 24 for heating the LPG to, for example, ⁇ 5 ° C. or higher.
  • the heater 24 is unnecessary. is there.
  • the pressure of the air layer in the storage tank 21 is the saturated vapor pressure of LPG.
  • the pressure (saturated vapor pressure) of the air layer in the storage tank 21 is about 0.9 MPa in gauge pressure.
  • all indications of pressure are gauge pressures.
  • the saturated vapor pressure of LPG is about 1.7 MPa at 50 ° C.
  • the storage tank 21 is configured to withstand, for example, 1.8 MPa.
  • the saturated vapor pressure of LPG is about 0.4 MPa at 0 ° C.
  • the service tank 22 is not provided with means for maintaining the LPG at a low temperature, and the temperature of the LPG in the service tank 22 changes following the atmospheric temperature.
  • the pressure of the air layer in the service tank 22 is the saturated vapor pressure of LPG.
  • the temperature of the LPG in the service tank 22 may be higher than the ambient temperature.
  • the pressure (saturated vapor pressure) of the gas layer in the service tank 22 is about 2.1 MPa.
  • the service tank 22 is configured to withstand, for example, 2.2 MPa.
  • the service tank 22 is connected to the propulsion engine 11 by a fuel supply line 31 and a fuel recovery line 41.
  • LPG is supplied from the service tank 22 to the engine 11 through the fuel supply line 31, and unused LPG is recovered from the engine 11 to the service tank 22 through the fuel recovery line 41.
  • LPG circulates between the service tank 22 and the engine 11 through the fuel supply line 31 and the fuel recovery line 41.
  • the upstream end of the fuel supply line 31 is connected to the lower part of the service tank 22.
  • the downstream end of the fuel recovery line 41 opens in the service tank 22.
  • the engine 11 is, for example, a diesel cycle or Otto cycle reciprocating engine. Although not shown, the engine 11 includes a main flow path connecting the downstream end of the fuel supply line 31 and the upstream end of the fuel recovery line 41, and a plurality of fuel injection valves connected in parallel to the main flow path. .
  • the fuel supply line 31 is provided with a pump 32, a heater 33 and a shutoff valve 34 in this order from the upstream side.
  • the heater 33 heats the LPG to the required temperature (for example, 45 ° C.) of the engine 11.
  • the relay line 26 is provided with a heater 27 for heating the LPG supplied from the storage tank 21 to the service tank 22. While the engine 11 is in operation, the LPG is supplied from the storage tank 21 to the service tank 22 in an amount corresponding to the fuel consumption amount Qe of the engine 11.
  • the heater 27 is used when it is difficult to heat the LPG to the required temperature of the engine 11 by the heater 33 alone. The heater 27 may be omitted.
  • a first pressure control valve 42 In the fuel recovery line 41, a first pressure control valve 42, a shutoff valve 43, a cooler 44 and a second pressure control valve 45 are provided in this order from the upstream side.
  • the cooler 44 cools the LPG to a predetermined temperature (for example, 40 ° C.). The cooler 44 may be omitted.
  • the fuel supply line 31 and the fuel recovery line 41 are connected by the first bypass line 51.
  • the first bypass line 51 branches from the fuel supply line 31 between the heater 33 and the shutoff valve 34, and is connected to the fuel recovery line 41 between the shutoff valve 43 and the cooler 44.
  • a flow control valve 52 is provided in the first bypass line 51.
  • the second bypass line 53 is also adopted.
  • the second bypass line 53 branches from the fuel supply line 31 between the pump 32 and the heater 33 and is connected to the service tank 22.
  • the second bypass line 53 is provided with a flow control valve 54.
  • either one of the first bypass line 51 and the second bypass line 53 may be omitted.
  • the pump 32, the shutoff valves 34 and 43, the pressure control valves 42 and 45, and the flow control valves 52 and 54 described above are controlled by the controller 6. However, in FIG. 1, only some signal lines are drawn for simplification of the drawing.
  • the control device 6 is, for example, a computer having a memory such as a ROM or a RAM and a CPU, and a program stored in the ROM is executed by the CPU.
  • the control device 6 may be a single device or may be divided into a plurality of devices (for example, an engine control device and a fuel supply control device).
  • the controller 6 is electrically connected to the first to third pressure gauges 71 to 73 and the flow meter 81.
  • the first pressure gauge 71 and the flow meter 81 are used to control the pump 32 and the flow control valves 52, 54, the second pressure gauge 72 is used to control the first pressure regulating valve 42, and the third pressure gauge 73 is 2 used for control of the pressure control valve 45.
  • the engine 11 may be an engine using only LPG as a fuel, or may be a binary fuel engine using LPG and a fuel oil such as heavy oil or light oil as fuel.
  • the timing to start using LPG as fuel corresponds to the timing to start operation of the engine 11.
  • the period in which the use of the LPG is stopped corresponds to the period in which the engine 11 is stopped.
  • the timing at which the operation of the engine 11 starts and the timing at which the operation of the engine 11 starts and the fuel used by the engine 11 is switched to the LPG And timing of adding LPG to the fuel used in
  • the period in which the use of LPG is stopped includes a period in which the engine 11 is stopped and a period in which the engine 11 is operated using only fuel oil as fuel.
  • the control device 6 closes the shutoff valves 34 and 43 while the shutoff valves 34 and 43 are not supplying the LPG to the engine 11. While LPG is being supplied to the engine 11, the controller 6 opens the shutoff valves 34 and 43. While the engine 11 is stopped, the flow passage between the shutoff valves 34 and 43 (the downstream portion of the fuel supply line 31, the main flow passage of the engine 11 and the upstream portion of the fuel recovery line 41) is purged with an inert gas.
  • the first pressure gauge 71 is provided in the service tank 22 and detects the pressure of the air layer in the service tank 22.
  • a flowmeter 81 is provided in the fuel supply line 31 downstream of a branch point with the first bypass line 51, and detects a supply flow rate Qi of the LPG flowing into the engine 11 through the fuel supply line 31.
  • the controller 6 keeps the flow control valve 52 fully closed as long as the number of revolutions of the pump 32 does not reach the minimum number of revolutions. Then, the control device 6 controls the pump 32 such that the supply flow rate Qi detected by the flow meter 81 becomes a predetermined value V corresponding to the fuel consumption amount Qe of the engine 11.
  • the coefficient C is usually 1.1 to 1.50.
  • the coefficient C may be a fixed value set within this numerical range, or may be variably set within this numerical range.
  • control device 6 may determine the fuel consumption amount Qe of the engine 11 based on the operation amount of the telegraph lever operated by the operator.
  • the control device 6 is divided into an engine control device that controls the engine 11 and a fuel supply control device that controls the pump 32 and various valves, the fuel supply control device is calculated by the engine control device.
  • the fuel consumption Qe of the engine 11 may be determined based on the value related to the fuel consumption.
  • the controller 6 controls the supply flow rate Qi detected by the flow meter 81 to the predetermined value V described above.
  • One of the flow control valves 52 and 54 is controlled so that Specifically, the controller 6 increases the opening degree of one of the flow control valves 52 and 54 as the fuel consumption amount Qe of the engine 11 decreases.
  • the second pressure gauge 72 is provided on the fuel supply line 31 downstream of the heater 33 and detects the pressure of the LPG supplied to the engine 11.
  • the second pressure gauge 72 is located downstream of the shutoff valve 34, but may be located upstream of the shutoff valve 34.
  • the control device 6 controls the first pressure control valve 42 so that the pressure detected by the second pressure gauge 72 becomes the required pressure of the engine 11 (for example, 5.0 to 6.0 MPa).
  • the third pressure gauge 73 is provided on the fuel recovery line 41 between the first pressure regulating valve 42 and the second pressure regulating valve 45, and detects the pressure of the LPG after the pressure is reduced by the first pressure regulating valve 42. Do. In the present embodiment, the third pressure gauge 73 is located upstream of the cooler 44, but may be located downstream of the cooler 44.
  • the temperature of the LPG rises a little as the LPG passes through the engine 11 (for example, 55 ° C.). Therefore, in order to prevent the LPG decompressed by the first pressure regulating valve 42 from being vaporized, the controller 6 determines that the pressure detected by the third pressure gauge 73 is higher than the saturated vapor pressure at the maximum temperature assumed.
  • the second pressure control valve 45 is controlled to have a high set value (for example, 2.0 MPa).
  • Temperature control and hence pressure control of the LPG are also performed when the use of the LPG is stopped.
  • temperature control of the LPG in the fuel tank 2 and control of the pressure of the air layer in the fuel tank 2 are performed.
  • the pressure of the air layer in the service tank 22 detected by the first pressure gauge 71 is equal to or less than a predetermined value during a period when the LPG is not used as fuel, or
  • the pump 32 is operated.
  • any one of the shutoff valves 34 and 43 and / or the flow control valves 52 and 54 is opened.
  • the shutoff valves 34 and 43 are opened, the LPG in the service tank 22 circulates to the service tank 22 via the fuel supply line 31 and the engine 11 (particularly, its main flow path).
  • the flow control valve 52 is opened, the LPG in the service tank 22 circulates to the service tank 22 via the fuel supply line 31 and the first bypass line 51.
  • the LPG in the service tank 22 circulates to the service tank 22 via the fuel supply line 31 and the second bypass line 53.
  • the LPG in the service tank 22 is the engine 11 and the fuel recovery line 41, and / or the first bypass line 51 or It circulates to the service tank 22 via the second bypass line 53.
  • the pressure of the air layer of the service tank 22 (saturated vapor pressure of LPG) is about 0.4 MPa, while LPG is used as fuel
  • the required pressure of the engine 11 in use is 5.0 to 6.0 MPa. If the pressure of the air layer in the service tank 22 is lower than a predetermined value, even if it is desired to operate the engine 11 using LPG as fuel, the pump 32 can not boost the supply pressure of LPG to the required pressure. I can not drive.
  • the LPG can not be used to drive the engine 11 until the required pressure can be reached (until the pressure in the air layer exceeds the predetermined value). It will be delayed by a minute.
  • the temperature of the LPG Increases with the heat input from the pump 32 at least.
  • the LPG passes through the engine 11 and circulates, so that the heat is also received from the engine 11 and it becomes easy to raise the temperature of the LPG.
  • the heater 33 is disposed on the fuel supply line 31 between the branch point of the pump 32 and the first bypass line 51, LPG circulation via the first bypass line 51 is achieved. Even at the same time, the temperature of the LPG can be raised by the heater 33.
  • the cooler 44 is a temperature controller that controls the temperature of the LPG to a temperature lower than that of the heater 33. Therefore, when LPG is circulated due to low pressure, the temperature of the LPG is lower than the adjustment temperature of the cooler 44. Therefore, the "cooler 44" can function as a heater.
  • the temperature of the LPG in the service tank 22 rises, and the pressure of the air layer in the service tank 22 (the saturated vapor pressure of LPG) also rises accordingly. If the pressure in the air layer exceeds a predetermined value, the pump 32 is stopped to stop the circulation of the LPG.
  • the threshold value of the circulation stop determination may be set to a value (high pressure value) larger than the threshold value of the circulation start determination in order to prevent the operation and stop of the pump 32 from being repeated frequently.
  • the rotational speed of the pump 32 is not particularly limited, but may be constant at the minimum rotational speed, or may be variable according to the pressure of the air layer to be detected. By raising the rotational speed of the pump 32 when the pressure in the air layer is low, the temperature can be raised early.
  • the pressure of the air layer in the service tank 22 is maintained at a predetermined value or more, so when the LPG starts to be used as fuel, the supply pressure of the LPG by the pump 32 Can be boosted to the pressure required by the engine 11, and the engine operation using the LPG can be smoothly and rapidly started.
  • FIG. 2 is a schematic block diagram of the ship 101 which concerns on 2nd Embodiment.
  • the bypass lines 51 and 53 and the flow control valves 52 and 54 may be omitted.
  • the control device 6 operates the pump 32 when the pressure of the air layer in the service tank 22 detected by the first pressure gauge 71 is less than or equal to a predetermined value when the use of the LPG is stopped.
  • LPG in the service tank 22 is circulated to the service tank 22 via the engine 11.
  • the pump 32 can boost the supply pressure of LPG to the pressure required by the engine 11, and the engine using LPG Driving can be started smoothly and quickly.
  • FIG. 3 is a schematic configuration view of a ship 201 according to a modification.
  • a flow meter 81 may be provided on the fuel recovery line 41 upstream of the shutoff valve 43 to detect an outflow flow rate Qo of the LPG from the engine 11. That is, the control device 6 may control the pump 32 and the flow control valve 52 such that the outflow flow rate Qo detected by the flow meter 81 becomes a predetermined value V 'corresponding to the fuel consumption amount Qe of the engine 11.
  • the predetermined value V ′ is, for example, a value obtained by multiplying the fuel consumption amount Qe of the engine 11 by a coefficient C of usually 0.1 to 0.50.
  • the coefficient C may be a fixed value set within the numerical value range, or may be variably set within the numerical value range.
  • the predetermined values V and V 'do not necessarily have to be constant, and the control device 6 may increase the predetermined values V and V' when the number of rotations of the pump 32 reaches the minimum number of rotations.
  • the predetermined value V may be increased to a flow rate in the range of 1.1 ⁇ Qe to 11.0 ⁇ Qe.
  • the predetermined value V ′ may be increased to a flow rate in the range of 0.1 ⁇ Qe to 10.0 ⁇ Qe.
  • the predetermined values V and V ' are constant when the rotational speed of the pump 32 reaches the minimum rotational speed, and the flow control valve 54 provided in the second bypass line 53 is opened.
  • the surplus amount obtained by subtracting the predetermined values V and V ′ from the discharge flow rate Q is returned to the service tank 22 through the second bypass line 53. Since the surplus is heated by the pump 32, the temperature of the LPG in the service tank 22 rises.
  • the predetermined values V and V 'are increased when the rotational speed of the pump 32 reaches the minimum rotational speed the LPG returned to the service tank 22 through the second bypass line 53 can be reduced. .
  • the LPG passing through the engine 11 is also increased by the increase of the predetermined values V and V ', the increased amount is cooled by the cooler 44 provided in the fuel recovery line 41. Therefore, the rise of the temperature of the LPG in the service tank 22 can be suppressed.
  • the fuel tank 2 is configured of the storage tank 21 and the service tank 22.
  • the storage tank 21 may be omitted, and the fuel tank 2 may be configured of only the service tank 22. That is, LPG may be directly introduced into the service tank 22 from the LPG supply source.
  • the fuel tank 2 can be divided into the storage tank 21 for LPG introduction, and the service tank 22 for LPG circulation.
  • thermometer may be provided to detect the temperature of the pump 32 and the necessity of operation of the pump 32 may be determined according to the temperature detected by the thermometer.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

Navire pourvu : d'un réservoir de carburant, d'un moteur de propulsion, d'une conduite d'alimentation en carburant, d'une pompe, d'une conduite de récupération de carburant, d'une conduite de dérivation, d'une jauge de pression et d'une unité de commande. L'unité de commande amène la pompe à fonctionner lorsque la pression détectée dans l'espace de gaz du réservoir de carburant par la jauge de pression pendant que le GPL n'est pas utilisé comme carburant est une valeur prédéfinie ou moins et amène le GPL dans le réservoir de carburant à circuler par l'intermédiaire du moteur et/ou de la conduite de dérivation de retour vers le réservoir de carburant.
PCT/JP2018/033258 2017-09-08 2018-09-07 Navire et procédé de gestion de température/pression de gpl WO2019050004A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020207009181A KR102316444B1 (ko) 2017-09-08 2018-09-07 선박 및 lpg 온도/압력 관리 방법
SG11202001766UA SG11202001766UA (en) 2017-09-08 2018-09-07 Ship and method of managing temperature and pressure of lpg
CN201880056759.8A CN111065576B (zh) 2017-09-08 2018-09-07 船舶以及液化石油气温度/压力管理方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-172994 2017-09-08
JP2017172994A JP6959804B2 (ja) 2017-09-08 2017-09-08 船舶およびｌｐｇ温度／圧力管理方法

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WO2019050004A1 true WO2019050004A1 (fr) 2019-03-14

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PCT/JP2018/033258 WO2019050004A1 (fr) 2017-09-08 2018-09-07 Navire et procédé de gestion de température/pression de gpl

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KR (1) KR102316444B1 (fr)
CN (1) CN111065576B (fr)
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WO (1) WO2019050004A1 (fr)

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KR102418127B1 (ko) * 2020-11-20 2022-07-11 대우조선해양 주식회사 엔진의 연료 공급 시스템
CN113090417B (zh) * 2021-03-29 2022-07-22 招商局重工(深圳)有限公司 一种lpg气液分离罐以及燃料控制系统

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JP2005351189A (ja) * 2004-06-11 2005-12-22 Nikki Co Ltd エンジンの気体ｌｐｇ供給装置
JP2007064201A (ja) * 2005-08-30 2007-03-15 Hyundai Motor Co Ltd Ｌｐｉエンジンシステム
JP2014051965A (ja) * 2012-09-06 2014-03-20 Hyundai Motor Company Co Ltd Ｌｐｇ燃料ポンプ制御システムおよび方法、およびこれを利用したｌｐｉエンジンの燃料供給システム
JP2016037935A (ja) * 2014-08-08 2016-03-22 川崎重工業株式会社 ガス供給システム及びそれを備える船舶

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KR100878965B1 (ko) * 2007-07-13 2009-01-19 현대자동차주식회사 엘피아이 엔진이 장착된 하이브리드 전기 차량의 시동지연방지 제어방법
KR20100095909A (ko) * 2009-02-23 2010-09-01 르노삼성자동차 주식회사 Ｌｐｌｉ 차량의 연료장치
KR20110021573A (ko) * 2009-08-26 2011-03-04 현대자동차주식회사 Ｌｐｉ엔진의 연료 공급 시스템
KR101284804B1 (ko) * 2011-03-11 2013-07-10 (주)모토닉 직접분사 엘피아이 시스템 및 그의 제어방법
KR101631176B1 (ko) 2011-04-05 2016-06-17 현대중공업 주식회사 듀얼 연료시스템이 마련된 액화석유가스 운반선

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Publication number Priority date Publication date Assignee Title
JP2005351189A (ja) * 2004-06-11 2005-12-22 Nikki Co Ltd エンジンの気体ｌｐｇ供給装置
JP2007064201A (ja) * 2005-08-30 2007-03-15 Hyundai Motor Co Ltd Ｌｐｉエンジンシステム
JP2014051965A (ja) * 2012-09-06 2014-03-20 Hyundai Motor Company Co Ltd Ｌｐｇ燃料ポンプ制御システムおよび方法、およびこれを利用したｌｐｉエンジンの燃料供給システム
JP2016037935A (ja) * 2014-08-08 2016-03-22 川崎重工業株式会社 ガス供給システム及びそれを備える船舶

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CN111065576A (zh) 2020-04-24
KR102316444B1 (ko) 2021-10-25
CN111065576B (zh) 2022-05-17
SG11202001766UA (en) 2020-03-30
JP2019048507A (ja) 2019-03-28
JP6959804B2 (ja) 2021-11-05
KR20200047640A (ko) 2020-05-07

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