EP1596122B1 - Anlage zur Abgabe von brennbaren Gas zur Antrieb eines Bootes für den Transport von flüssigen Gasen - Google Patents

Anlage zur Abgabe von brennbaren Gas zur Antrieb eines Bootes für den Transport von flüssigen Gasen Download PDF

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Publication number
EP1596122B1
EP1596122B1 EP05300312A EP05300312A EP1596122B1 EP 1596122 B1 EP1596122 B1 EP 1596122B1 EP 05300312 A EP05300312 A EP 05300312A EP 05300312 A EP05300312 A EP 05300312A EP 1596122 B1 EP1596122 B1 EP 1596122B1
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EP
European Patent Office
Prior art keywords
gas
compressor
pressure
flow rate
tank
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP05300312A
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English (en)
French (fr)
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EP1596122A2 (de
EP1596122A3 (de
Inventor
Matthieu Lorang
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Alstom SA
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Alstom SA
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Publication of EP1596122A2 publication Critical patent/EP1596122A2/de
Publication of EP1596122A3 publication Critical patent/EP1596122A3/de
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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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed 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
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • 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
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • F17C2201/0157—Polygonal
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/052—Size large (>1000 m3)
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • 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
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
    • F17C2223/042—Localisation of the removal point
    • F17C2223/043—Localisation of the removal point in the gas
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
    • F17C2223/042—Localisation of the removal point
    • F17C2223/046—Localisation of the removal point in the liquid
    • F17C2223/047—Localisation of the removal point in the liquid with a dip tube
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/035—High pressure, i.e. between 10 and 80 bars
    • 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
    • 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
    • F17C2227/0157—Compressors
    • 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
    • F17C2227/0171—Arrangement
    • F17C2227/0178—Arrangement in the vessel
    • 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
    • F17C2227/0171—Arrangement
    • F17C2227/0185—Arrangement comprising several pumps or compressors
    • 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
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0309—Heat exchange with the fluid by heating using another fluid
    • 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
    • F17C2250/03—Control means
    • F17C2250/032—Control means using computers
    • 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
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0443—Flow or movement of content
    • 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
    • F17C2265/03—Treating the boil-off
    • 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
    • F17C2265/03—Treating the boil-off
    • F17C2265/031—Treating the boil-off by discharge
    • 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

Definitions

  • the present invention relates to an installation for supplying gaseous fuel to an energy production assembly of a liquefied gas transport vessel from the contents of at least one vessel of the vessel.
  • the energy production unit includes a steam production boiler supplying a turbine driving the propeller.
  • the steam boiler uses fuel from the cargo as fuel.
  • the methane is in the liquid state and the gaseous phase above the liquid level is at a pressure in the region of 1 to 3 bars.
  • the boiler feeds on the one hand, the gas phase above the liquid, sucked directly above the surface by an axial compressor supplying, under the required pressure, the burners of the boiler and other on the other hand, by suction of liquid pumped into the tanks and sent to an evaporator; at the outlet, the gas is expanded to the inlet pressure of about 1 bar absolute of the compressor and sent to this compressor with the gas directly from the gaseous phase of the tanks by natural evaporation.
  • the portion from the pumped and gas phase liquid is produced when the only natural evaporation is insufficient to supply the energy requirements of the vessel.
  • Such an installation can also be used to supply gaseous fuel with an energy production assembly other than a boiler supplying a turbine.
  • the FR 2,722,760 thus describes such an installation supplying gaseous fuel for the thermal engines driving alternators supplying electric motors coupled to the propeller.
  • the patent FR 2 837 783 proposes a provision which in particular makes it possible to reduce the power of the compressor and describes an installation for the supply of gaseous fuel to an energy production assembly of a liquefied gas transport vessel, from the contents of a vessel of the vessel.
  • the vessel contains liquefied gas and vapor phase gas over a liquid-vapor separation surface.
  • This arrangement comprises on the one hand a compressor driven by a motor and whose inlet sucks the gas in the vapor phase into the tank above the liquid surface, the output of the compressor discharging into a supply manifold of the assembly energy production.
  • It further comprises a pump immersed at the bottom of the tank and connected by a pipe to the inlet of an evaporator, the outlet of the evaporator being connected to the collector.
  • She further comprises a return line of the liquid in the tank, equipped with a controlled valve and connected to the pipe connecting the pump to the evaporator.
  • the compressor is regulated from a pressure maintenance setpoint at the input of the energy production assembly, above a certain value. If the gas pressure in the manifold falls below the setpoint, the compressor is controlled to dispense more gas into the manifold until the pressure rises above the set point.
  • the evaporator is also controlled on a set point for maintaining a certain gas pressure, this pressure being here measured in the tank. If the gas pressure in the tank falls below the set point, the manifold is supplied with gas via the evaporator, which reduces the amount of gas sucked from the tank by the compressor and therefore limits the pressure drop in the tank .
  • This arrangement also comprises an oxidation device which is regulated from a set point of not exceeding a high pressure in the tank, to protect the tank from a possible overpressure by allowing the compressor to debit sufficiently in the manifold.
  • the regulation of the compressor is carried out by a controller which acts on the speed of rotation of a compressor drive motor as well as on the angle of the input blades of the compressor. It should be noted that this regulation of the compressor does not take into account the pressure of the gas in the tank.
  • the present invention proposes a new regulation arrangement which makes it possible in particular to optimize the regulation of the compressor and thus to ensure a better durability.
  • said automated control means are capable of recording a setpoint pressure value and a setpoint value entered by an operator, and said information processing means provided by said measuring means are capable of calculating each error. relative to a difference between a pressure or flow measurement and the corresponding setpoint.
  • second automated control means are able to control flow control means of the liquefied gas supplied to said evaporator as well as means for regulating the flow of gas in a pipe.
  • pressure relief valve which connects said manifold to a gas oxidizer, and said second control means is connected to pressure measuring means in the manifold and uses the information provided by said pressure measuring means to controlling said flow control means.
  • a cooling device is located on said gas-phase supply line for the compressor, this cooling device being activated according to the information provided by temperature measuring means capable of measuring the temperature of the gas in the feed pipe upstream of the cooling device.
  • said compressor control means comprise louvres adapted to be rotated gradually between two respectively open and closed positions.
  • the present invention also relates to a method of regulating a compressor for an installation according to the invention, wherein said automated control means perform the regulation of the compressor by acting solely on the pivoting said blades.
  • FIG. 1 it is to supply gaseous fuel a set of energy production of a liquefied gas transport vessel such as a LNG tanker of which a tank 1 is shown.
  • a liquefied gas transport vessel such as a LNG tanker of which a tank 1 is shown.
  • several tanks such as the tank 1 can be used together for the supply of gaseous fuel.
  • Such a set of energy production is referenced 2 and may include diesel engines driving alternators for the production of electrical energy for the electrical installations of the ship and its propulsion, but could alternatively feed a conventional assembly comprising a boiler for steam production feeding a steam turbine for driving the propeller.
  • the vessel 1 contains liquefied gas 3 at about -163 ° C and vapor phase in the space 4 above the surface 5 of the liquid.
  • the pressure of the tank is close to the atmospheric pressure.
  • the installation comprises a compressor 6 whose inlet sucks from the space 4 the vapor phase gas and the output of which flows into a manifold 7 supply of the assembly 2.
  • a pump 8 submerged at the bottom of the tank is connected to the inlet of an evaporator 10 via a liquefied gas supply pipe 9, and the outlet of this evaporator is connected to the collector 7.
  • a return line 11 to the tank 1, equipped with a first regulated valve 12 is derived from a bypass of the pipe 9 while a second valve 13 unregulated is located on the pipe 9 downstream of the pipe connection return 11 to the pipe 9.
  • regulated valve is meant a variable controlled opening valve.
  • An overpressure evacuation pipe 14 equipped with a third regulated valve 15 is furthermore connected to the collector 7 downstream of the connection of the outlet of the evaporator 10 to the collector 7, and leads to an oxidation device 16 of the gas, sometimes called incinerator or "oxidizer" in English.
  • a cooling device 28, 29 is located on the gas supply pipe 33 of the compressor 6. More precisely, the pipe 33 is locally constituted by two branches 33A and 34 equipped with two valves respectively regulated 26 and 27 which are connected to a controller 25, and the cooling device is installed on a first branch 33A.
  • the cooling device 28, 29 is connected to the liquefied gas supply pipe 9 via a bypass line 35 located downstream of the connection of the return pipe 11 to the pipe 9, this pipe 35 being equipped with a regulated valve 32.
  • the compressor 6, driven by a motor not shown, is regulated in operation from a controller 17 receiving double information: a first information on the pressure of the gas measured in the tank 1 or at the inlet of the pipe 33 d supplying gas to the compressor by a pressure gauge 18, and a second information on the gas flow rate measured by a flowmeter 19 in the pipe 33.
  • the controller 17 performs the regulation of the compressor 6 by acting only on the pivoting of the lamellae, that is to say without affecting the speed of rotation of the drive motor of the compressor. It is furthermore advantageous for these louvers to be arranged at the outlet of the compressor, and not at the inlet of the compressor as realized in the state of the art described by patent FR 2 837 783 .
  • the unregulated valve 13 located at the inlet of the evaporator 10 is controlled upon opening and closing, in all or nothing, by a controller 20.
  • This controller 20 receives as input information on the measured gas pressure in the manifold 7 by a pressure gauge 21 and controls, in addition to the valve 13, the controlled valve 15.
  • Another pressure gauge 22 measures the liquefied gas pressure in line 9 and the information is sent to a third controller 23 which controls the first regulated valve 12.
  • the temperature of the gas upstream of the cooling device is controlled by a temperature sensor 24 in the pipe 33. If necessary, this temperature can be reduced by injection into the using an injector 28 in the branch 33A of liquid methane from the tank 1.
  • the temperature information is sent to the controller 25 which controls all or none the unregulated valves 26 and 27, so that that a valve 26 or 27 is open when the other valve is closed.
  • a temperature sensor 30 measures the temperature at the outlet of the cooling device 28, 29, and the information is sent to an automaton 31 for example PID regulator type (Proportional-Integral-Derivative) which controls the regulated valve 32 located on the bypass line 35 of the pipe 9, for the arrival of the liquefied gas to the injector 28.
  • the cooled gas at the outlet of the injector 28 passes into a droplet separator 29 to remove residual droplets of liquid in suspension.
  • the compressor 6 is in continuous operation and thus continuously draws gas which evaporates in the space 4, with a flow rate which is regulated as explained below.
  • the open or closed position of the second valve 13 and the 0 to 100% opening value of the valve 15 are determined as a function of the gas pressure measured by the gauge 21 in the manifold 7.
  • the natural evaporation in the tank is considered insufficient to ensure the energy requirement of the vessel, and the valve 13 is then controlled to be open. This is what happens when the tank 1 is very low or the energy demand is important.
  • the collector 7 is thus supplied with gas via the evaporator, and this has the consequence of maintaining a sufficient pressure in the collector 7.
  • the compressor 6 sucks the gas continuously from the space 4 of the bowl for discharging it in the collector 7. Since the pressure in the plenum remains below the high P 2 threshold, the compressor will normally ensure a certain gas flow output to the manifold, and more particularly to ensure a gas flow input into the gas supply line 33 of the compressor which is greater than or equal to a set value. Thus, in the case of a gas pressure higher than a predetermined set point in the tank 1, the pressure in the tank is lowered by the regulation of the compressor which reacts by increasing the gas flow, as explained below. This increase in flow can be evacuated either by the energy production unit 2 or by the oxidation device 16, thus avoiding an excessive increase in the pressure in the collector 7.
  • the supply pressure of the evaporator 10 in liquefied gas is controlled by a set pressure P 0 and is adjusted by means of the first valve 12 regulated on the return line 11, valve whose opening of 0 to 100% is controlled by the controller 23, for example of the PID regulator type, as a function of the pressure in the pipe 9 measured by the pressure gauge 22.
  • the valve 12 For a value of this pressure less than or equal to a predetermined value P 4 , the valve 12 remains closed and it opens gradually between P 4 and a predetermined upper value P 5 where it opens completely.
  • the regulation of the compressor 6 is controlled by an instruction of orientation of the blades of the compressor, that is to say that the compressor receives an instruction in the form of a value included between 0 and 100% of the maximum opening angle lamellae, this value having been selected as the largest of two values of a double set of orientation of the lamellae.
  • Each of these two values is provided by a controller PID controller 17 from the calculation of a relative error between a set pressure or flow rate value and the corresponding actual measured value.
  • the PID controller (s) of the controller 17 thus constitute means for processing the information provided by the pressure and flow measurement means respectively 18 and 19 for controlling the regulation of the compressor.
  • the controller 17 is adapted to store in memory a desired pressure value P ref and a rate value D reference ref that have been returned by an operator.
  • the reference flow rate D ref corresponds to the minimum flow rate imposed by the operating range of the compressor, and must preferably remain lower than the amount of gas produced at the same time by the natural evaporation in the space 4 of the tank.
  • the regulation is provided so that the flow rate can not fall substantially below the reference D ref , because otherwise there would be a risk of stopping the compressor.
  • the actual gas pressure in the tank 1 is measured by the gauge 18, and this measurement is regularly compared to the reference P ref at the level of a PID controller of the controller 17.
  • the gas flow rate is measured in the pipe 33 the input of the compressor 6 by the flow meter 19, and this measurement is continuously compared with the set D ref at another PID controller of the PLC 17.
  • Each PID controller calculates the relative error in measurement, or positive error negative, defined as the difference between the measured pressure or flow rate and the corresponding setpoint, divided by the width of the measuring range of the corresponding sensor.
  • Each relative error calculated for the pressure and the flow rate respectively corresponds to a first value O 1 and a second value O 2 of setpoint orientation of the plates between 0 and 100%, and the greater of the two values is retained as the instruction orientation of lamellae which is sent to the compressor 6.
  • the reference pressure value P ref corresponds to a value of O ref orientation of lamellae setpoint.
  • the reference setpoint value of the louvers which corresponds to the reference flow rate D ref depends on the pressure at the inlet of the compressor, since the flow rate in the compressor varies with the pressure for a given orientation of the louvers.
  • the first value O 1 of orientation set of the plates increases with the pressure and therefore with the algebraic measurement of the relative error calculated for the pressure.
  • a relative zero error that is to say when the pressure is equal to the reference P ref , corresponds to a setpoint O 1 of orientation of the plates equal to O ref , for example equal to 30%. If the pressure increases, the controller 17 then increases the orientation setpoint O 1 to open more louvers, which has the effect of increasing the flow rate and thus reduce the pressure.
  • the measured pressure then decreases by approaching the reference P ref , and thus the relative error on the pressure decreases.
  • the automaton 17 then decreases the first value O 1 of the orientation instruction, which also has the effect of decrease the flow due to the smaller opening of the louvers.
  • the flow rate will therefore decrease towards the reference value D ref , while the pressure is reduced to the reference value P ref .
  • the controller 17 sends a pivot control of the lamellae corresponding to a larger opening in order to increase the gas flow and thus gradually lower the pressure in the tank to P ref .
  • the regulation obtained makes it possible to quickly compensate for a pressure increase or a drop in flow compared with the set values.
  • the cooling device 28, 29, allows, at the conduit 33 for supplying gas from the compressor 6, to maintain a gas temperature at a steady level T 0 so as to optimize the operation of the compressor 6.
  • the temperature in the upstream portion of the pipe 33 is measured by a sensor 24 and constitutes the temperature return which is compared with a temperature setpoint supplied by the controller 25 to the valves 26 and 27 for opening and closing respectively in all or nothing. .
  • the valve 26 is opened and the valve 27 is closed, and thus the gas passes only into the first bypass 33A through the cooling device 28, 29.
  • valve 27 is open and the valve 26 is closed, the controlled valve 32 being further controlled by the controller 25 in complete closure so as not to create pockets of liquid in the first branch 33A.
  • the cooling device consists of the injector 28 of liquefied gas from at least one tank 1 and the droplet separator 29.
  • the injector 28 is regulated from the temperature measurement performed at the outlet of the cooling device by a sensor 30 which sends the information to the controller 31 for the control of the regulated valve 32.
  • controllers 17, 20, 23, 25 and 31 can be grouped together in a centralized control system on which all the necessary data are routed: pressure in the tank 1 and flow in the pipe 33, pressure in the pipe 9, pressure in the manifold 7, and temperatures in the pipes 33 and 35, centralized system from which orders are sent to the actuators.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Catching Or Destruction (AREA)

Claims (11)

  1. Anlage zum Bereitstellen gasförmigen Brennstoffs einem Energieerzeugungskomplex (2) eines Transportschiffs für Flüssiggas aus dem Inhalt wenigstens eines Tanks (1) des Schiffs, wobei der Tank (1) das Flüssiggas (3) und Gas in Dampfphase in einem Raum (4) oberhalb der flüssigen Phase enthält, und welche umfasst:
    - einen Kompressor (6), der geeignet ist, Gas in Dampfphase in dem Tank (1) über eine Versorgungsleitung (33) anzusaugen, wobei der Ausgang des Kompressors (6) in einen Versorgungssammler (7) des Energieerzeugungskomplexes (2) ausstößt,
    - eine Pumpe (8), die ausgelegt ist, um Flüssiggas am Eingang eines Verdampfers (10) bereitzustellen, wobei der Ausgang des Verdampfers (10) mit dem Sammler (7) verbunden ist,
    - Mittel zur automatisierten Steuerung (17), die mit Mitteln zur Regelung des Kompressors (6) verbunden sind,
    - Mittel zum Messen des Drucks des Gases in Dampfphase im Raum des Tanks,
    dadurch gekennzeichnet, dass die Mittel zur automatisierten Steuerung (17) mit Mitteln zum Messen (19) des Flusses des Gases in Dampfphase in der Versorgungsleitung (33) sowie mit Mitteln zum Messen (18) des Drucks des Gases in Dampfphase im Raum (4) des Tanks (1) verbunden sind und Mittel zur Verarbeitung der Informationen umfassen, die von Mitteln zum Messen (18, 19) bereitgestellt werden, um die Regelung des Kompressors (6) zu steuern.
  2. Anlage gemäß Anspruch 1, bei welcher die Mittel (17) zur automatisierten Steuerung geeignet sind, einen Solldruckwert (Préf) sowie einen Sollflusswert (Dréf) zu speichern, die von einem Operator eingegeben werden, und bei der die Mittel zur Verarbeitung der Informationen, die von den Messmitteln (18, 19) bereitgestellt werden, geeignet sind, jeden Fehler relativ für einen Abstand zwischen einer Druck- oder Flussmessung und des entsprechenden Sollwerts (Préf, Dréf) zu berechnen.
  3. Anlage gemäß Anspruch 1 oder 2, bei welcher zweite Mittel zur automatisierten Steuerung (20) geeignet sind, Mittel (13) zur Regelung des Flusses des Flüssiggases, das dem Verdampfer (10) bereitgestellt wird, sowie Mittel zur Regelung des Gasflusses in einer Überdruck-Evakuierungsleitung (14), die den Sammler (7) mit einer Oxidierungsvorrichtung (16) des Gases verbindet, zu steuern, und bei welcher die zweiten Steuermittel (20) mit Mitteln (21) zum Messen des Drucks im Sammler (7) verbunden sind und die Informationen verwenden, die von den Mitteln (21) zum Messen des Drucks bereitgestellt werden, um die Mittel (13, 15) zur Flussregelung zu steuern.
  4. Anlage gemäß einem der vorhergehenden Ansprüche, bei welcher eine Kühlvorrichtung (28, 29) auf der Versorgungsleitung (33) des Gases in Dampfphase für den Kompressor (6) liegt, wobei die Kühlvorrichtung in Abhängigkeit der Informationen aktiviert wird, die von Mitteln (24) zum Messen der Temperatur bereitgestellt werden, die geeignet sind, die Temperatur des Gases in der Versorgungsleitung (33) flussaufwärts der Kühlvorrichtung zu messen.
  5. Anlage gemäß dem vorhergehenden Anspruch, bei welcher die Kühlvorrichtung eine Vorrichtung (28) zur Injektion des Flüssiggases, das aus dem wenigstens einen Tank (1) stammt, sowie einen Tröpfchenfänger (29) flussabwärts der Einspritzvorrichtung (28) umfasst.
  6. Anlage gemäß dem vorhergehenden Anspruch, bei welcher die Vorrichtung (28) zum Einspritzen des Flüssiggases über eine Umgehungsleitung (35) mit Flüssiggas versorgt wird, die mit einer Versorgungsleitung (9) für Flüssiggas verbunden ist für den Verdampfer (10), wobei die Umgehungsleitung (35) mit einem geregelten Ventil (32) ausgestattet ist, das von einem Automaten (31) gesteuert wird, der mit Mitteln (30) zum Messen der Temperatur des Gases flussaufwärts der Kühlvorrichtung verbunden ist.
  7. Anlage gemäß einem der Ansprüche 4 bis 6, bei welcher die Versorgungsleitung (33) mit Gas in Dampfphase für den Kompressor (6) lokal von zwei Umgehungen (33A, 34) gebildet wird, und die Kühlvorrichtung (28, 29) auf einer (33A) dieser beiden Umgehungen installiert ist.
  8. Anlage gemäß einem der vorhergehenden Ansprüche, bei welcher jede der beiden Umgehungen (33A, 34) mit einem nicht-geregelten Ventil (26, 27) ausgestattet ist, wobei die beiden Ventile mit einem Steuerautomaten (25) verbunden sind, der vorgesehen ist, um das Öffnen eines Ventils (26, 27) zu steuern, wenn das andere Ventil geschlossen ist, wobei der Automat (25) mit den Mitteln (24) zum Messen der Temperatur flussaufwärts der Kühlvorrichtung verbunden ist.
  9. Anlage gemäß einem der vorhergehenden Ansprüche, bei welcher die Regelungsmittel des Kompressors (6) Schleusenklappen umfassen, die geeignet sind, schrittweise zwischen zwei Positionen, Öffnungs- bzw. Schließposition, geschwenkt zu werden.
  10. Verfahren zum Regeln eines Kompressors (6), bei welchem eine Anlage gemäß Anspruch 9 zur Verfügung gestellt wird, und bei welchem mit den Mitteln zur automatisierten Steuerung (17) die Regelung des Kompressors (6) durchgeführt wird, indem allein das Schwenken der Schleusenklappen beeinflusst wird.
  11. Verfahren zum Regeln gemäß Anspruch 10, bei welchem eine Anlage gemäß dem Anspruch 2 und 9 zur Verfügung gestellt wird, und bei welchem die folgenden Schritte umgesetzt werden:
    - die beiden Messungen, Druck- bzw. Flussmessung, die von den Messmitteln (18, 19) bereitgestellt werden, werden regelmäßig mit den Sollwerten (Préf, Dréf) verglichen, um die beiden entsprechenden Relativfehler zu berechnen,
    - für jeden Relativfehler, der für den Druck und den Fluss berechnet wird, wird jeweils ein erster Sollwert (O1) und ein zweiter Sollwert (O2) zur Orientierung der Schleusenklappen bestimmt,
    - der größere der beiden Orientierungssollwerte (O1, O2) wird von den automatisierten Steuermitteln (17) als die Orieritierungsanweisung der Schleusenklappen berücksichtigt, die zum Kompressor (6) geschickt wird.
EP05300312A 2004-05-14 2005-04-25 Anlage zur Abgabe von brennbaren Gas zur Antrieb eines Bootes für den Transport von flüssigen Gasen Expired - Lifetime EP1596122B1 (de)

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FR0450945A FR2870206B1 (fr) 2004-05-14 2004-05-14 Installation pour la fourniture de combustible gazeux a un ensemble de production energetique d'un navire de transport de gaz liquefie.
FR0450945 2004-05-14

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DE602005022649D1 (de) 2010-09-16
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FR2870206B1 (fr) 2006-08-04
CN1707151A (zh) 2005-12-14
JP4761827B2 (ja) 2011-08-31
EP1596122A2 (de) 2005-11-16
KR101245977B1 (ko) 2013-03-20
JP2005324789A (ja) 2005-11-24
FR2870206A1 (fr) 2005-11-18
EP1596122A3 (de) 2006-03-29
ES2348243T3 (es) 2010-12-01

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