CN100593093C - Installation for delivering combustible gas to a energy generator of a ship and regulating method thereof - Google Patents

Installation for delivering combustible gas to a energy generator of a ship and regulating method thereof Download PDF

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Publication number
CN100593093C
CN100593093C CN200510081711A CN200510081711A CN100593093C CN 100593093 C CN100593093 C CN 100593093C CN 200510081711 A CN200510081711 A CN 200510081711A CN 200510081711 A CN200510081711 A CN 200510081711A CN 100593093 C CN100593093 C CN 100593093C
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CN
China
Prior art keywords
gas
compressor
equipment
pressure
flow
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Expired - Fee Related
Application number
CN200510081711A
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Chinese (zh)
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CN1707151A (en
Inventor
M·洛朗
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New Kanter Corporation
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Alstom SA
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Publication of CN1707151A publication Critical patent/CN1707151A/en
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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

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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)

Abstract

The installation comprises at least one tank for housing liquefied gas and gas in a gas phase in an upper space of the liquid phase. The installation further comprises the compressor for absorbing gasin gas phase from the said tank via supply pipe and connecting an outlet from the compressor to a manifold for supplying an energy generating unit, a pump arranged to supply the liquefied gas to an inlet of an evaporator and having an outlet from the evaporator connected to the manifold, an automatic controling means and a regulator means for regulating the compressor, a measuring means for measuring the flow rate of the gas in the gas phase in a supply pipe, and an automatic control means connected to a measuring means for measuring the pressure of the gas in the gas phase in the space of the tank. The automatic control means comprise means for processing information provided by the measuring means to control the adjustment of the compressor.

Description

Gaseous fuel is fed to the equipment and the regulating method thereof of the energy producing unit of ship
Technical field
The present invention relates to a kind of equipment that is used for gaseous fuel is fed to the energy producing unit (energy production unit) of a liquefied gas carrier, described fuel is taken from the content of at least one holding vessel in the ship.
Background technique
In known methane oil carrier, energy producing unit comprises that the steam generation boiler of a supply turbo machine is to be used to drive propulsion device.The steam generation boiler adopts boat-carrying gas to act as a fuel.In by heat insulation holding vessel, methane is in a liquid state, and the pressure of gas phase that is positioned at liquid level top is near 1 to 3 crust.
The fuel that is fed to boiler is at first from the gas phase above the liquid, described gas phase is directly sucked in this surface by an Axial Flow Compressor with the burner of the pressure of needs supply boiler, and second extracts and be transported to the liquid of a vaporizer out since holding vessel; Gas expand into the inlet pressure of compressor when leaving vaporizer, promptly about 1 bars absolute, and this gas is admitted to compressor with the gas phase that directly forms from the natural evaporation in the holding vessel then.
When independent natural evaporation is not enough to supply the energy requirement of steamer, just use the part that has been transformed into gas phase from the liquid that is extracted.
This equipment can be used for to the energy producing unit supply gas fuel except the boiler of supply turbo machine.Therefore, F.P. No.272760 has illustrated a kind of equipment to the motor supply gas fuel that drives alternator, and described alternator itself is to the power electric motors that is connected with propulsion device.
F.P. No.2837783 has proposed a kind of setting that especially can reduce the power of compressor, and a kind of equipment that is used for gaseous fuel is supplied to from the content of one of holding vessel of ship the energy producing unit of a liquid gas oil carrier has been described.Described holding vessel accommodates liquid gas and the gas phase gas above liquid-gas separating surface.This set at first comprises a compressor, and this compressor sucks gas phase gas by motor driven and its inlet above the liquid level of holding vessel, and the outlet of compressor delivers gas to a house steward to be used for the supplying energy generation device.This setting also comprises the continuous pump of inlet that is immersed in the holding vessel bottom and passes through the Guan Yuyi vaporizer, and the outlet of this vaporizer links to each other with house steward.This setting comprises also and is used to make liquid to turn back to the pipe of holding vessel that described pipe is equipped with a modulating valve and links to each other with the pipe that pump is connected to vaporizer.
In this is provided with, regulate compressor according to a setting value, the pressure of energy producing unit ingress is maintained more than the certain value being used for.Be lower than setting value if the air pressure in the house steward drops to, then operate compressor is got back on the setting value up to its pressure rising to carry more gas to house steward.Also according to a setting value vaporizer is controlled to keep certain air pressure, wherein this air pressure records in holding vessel.Be lower than setting value if the air pressure in the holding vessel drops to, then by vaporizer to house steward's supply gas, thereby reduce the amount of the gas that compressor sucks from holding vessel, thereby limited the pressure drop in the holding vessel.This setting also comprises an oxidation coating of regulating according to the high pressure setting value, must can not surpass this high pressure setting value in the holding vessel, carries enough gas make overpressure in the holding vessel in house steward owing to the permission compressor preventing.
Compressor is regulated by an automatic controller that acts on the inclination angle (pitch) of the rotating speed of drive motor of compressor and suction port of compressor blade.Can see, air pressure in the holding vessel is not considered in the adjusting of compressor.
Summary of the invention
The present invention proposes a kind of novel controlling device, it especially can optimize the adjusting of compressor, therefore guarantees to have improved performance for a long time.
Therefore, the invention provides a kind of equipment that is used for gaseous fuel is supplied to the energy producing unit of liquefied gas carrier, described fuel is taken from least one holding vessel of ship, the gas phase gas that described holding vessel accommodates described liquid gas and is positioned at the liquid phase superjacent air space, and this equipment comprises:
Be suitable for sucking the compressor of this gas phase gas from this holding vessel via a supplying pipe, the outlet of this compressor is connected to a house steward who is used to supply this energy producing unit;
Be used for liquid gas is fed to the pump of an evaporator inlet, the outlet of this vaporizer links to each other with this house steward; And
The automatic controller that links to each other with the controlling device of compressor;
This equipment is characterised in that, this automatic controller and the flow (flow rate that is used to measure the gas phase gas in this supplying pipe, flow rate) device links to each other, and link to each other, and comprise and be used to handle the information that provides by this measuring device so that the device of the adjusting of control compressor with the device of pressure of gas phase gas in the described space that is used to measure holding vessel.
Preferably, described automatic controller is suitable for writing down by a setup pressure value of operator's input and sets flow value, and the described device that is used to handle the information that is provided by described measuring device is applicable to that calculating is in the pressure that records or flow and each relative error of the difference between the setting value accordingly.
In an advantageous embodiments of equipment of the present invention, second automatic controller is suitable for the flow regulator to the flow that is used to regulate the described liquid gas that is supplied to described vaporizer, and be used to regulate the flow regulator that described house steward is connected to the gas flow in the overvoltage discharge pipe on the gas cyaniding device and control, and described second control device links to each other with the device that is used to measure the pressure in the described house steward, and utilizes the information that is provided by described manometer to control described flow regulator.
In another advantageous embodiment of equipment of the present invention, be provided with a cooling unit being used for gas phase gas is supplied on the described pipe of this compressor, described cooling unit activated along with the information that is provided by temperature measuring equipment, and this temperature measuring equipment is suitable for measuring the gas temperature in the described supplying pipe of described cooling unit upstream.
Preferably, the described controlling device that is used to regulate described compressor comprises and is suitable for the blade that pivoted gradually between the two positions that these two positions are respectively open position and closed position.
The present invention also provides a kind of regulating method that is used for the compressor of equipment of the present invention, and wherein said automatic controller is regulated this compressor by the pivot that only acts on described blade.
Description of drawings
Below with reference to unique accompanying drawing embodiments of the invention are described, wherein:
Fig. 1 illustrates equipment of the present invention.
Embodiment
With reference to accompanying drawing 1, as shown in FIG., will from liquefied gas carrier for example the gaseous fuel of a holding vessel 1 of methane oil carrier be supplied to the energy producing unit of this cargo ship.Certainly, also can use a plurality of holding vessels such as holding vessel 1 to come supply gas fuel jointly.
The collectivity mark of this energy producing unit is 2, it can comprise the diesel engine that drives alternator, be used for the power equipment on the ship and be used to advance the electric energy of this ship with generation, but selectively, this energy producing unit can be a common elements that comprises the boiler that is used to produce steam, and described steam is supplied to a steam turbine to drive propulsion device.
Holding vessel 1 accommodates and is approximately-163 ℃ liquid gas 3, and (steaming) gas phase in the space 4 of liquid surface 5 tops.The pressure of holding vessel is near barometric pressure.This equipment comprises a compressor 6, and the inlet of this compressor 4 extracts the gas phase gases from the space, and its outlet is connected to a house steward 7 for should unit 2.One inundates at the pump 8 of holding vessel bottom and is connected to the inlet of a vaporizer 10 via a liquefied gas supplying pipe 9, and the outlet of this vaporizer links to each other with house steward 7.
A reflow pipe 11 that leads back to holding vessel 1 is equipped with one adjustable (regulated), first modulating valve 12, and this reflow pipe constitutes the branch on the pipe 9, and this reflow pipe 11 on pipe 9 and the downstream of managing the tie point between 9 are provided with uncontrollable second valve 13 simultaneously.Term " adjustable " valve is meant a kind of valve with the variable orifice that can be conditioned.
Downstream at the outlet of this vaporizer 10 and this house steward's 7 tie point, also have a pipe 14 that is used to discharge excess pressure to be connected to this house steward 7, this pipe 14 is equipped with adjustable the 3rd valve 15, and this pipe 14 leads to a gas cyaniding device 16, and this gas cyaniding device 16 only is called as " oxidator " or " burning device " sometimes.
Cooling unit 28,29 is positioned on the pipe 33 to be used for to compressor 6 supply gas.More precisely, pipe 33 is made of two 33A of branch and 34 that are separately installed with valve 26 and 27 in the part, and these two valves are unadjustable and link to each other with an automatic controller 25, and this cooling unit is installed among the first duplexure 33A.
Cooling unit 28,29 is connected on the liquefied gas supplying pipe 9 by a branched pipe 35, and described branched pipe 35 is at reflow pipe 11 and manage the downstream of the tie point between 9, and this pipe 35 is equipped with a modulating valve 32.
Compressor 6 by unshowned motor driven is regulated by a controller 17 in running, this controller 17 receives two information: at first be in the holding vessel 1 that records by pressure meter 18 or be used for relevant information to the gas pressure of the ingress of the pipe 33 of compressor supply gas, secondly be the relevant information of the air flow rate in the pipe 33 that records by flowmeter 19.
Controller 17 preferably comes compressor 6 is regulated by the rotating speed one that the pivot one that only acts on blade does not promptly act on the motor of Driven Compressor.As prior art illustrated among the F.P. No.2837783, these blades are arranged on the outlet of compressor but not the inlet of compressor also is favourable.
Be controlled to the state of opening or closing that is in by an automatic controller 20 and the unadjustable valve 13 that utilizes switch control will be positioned at vaporizer 10 ingress.This controller 20 receives the relevant information of measured house steward's 7 air pressure from a pressure meter 21 that is positioned at its ingress, and not only control valve 13 but also regulating and controlling valve 15.
The pressure of the liquid gas in another pressure meter 22 sounding pipes 9, this information is applied to control one the 3rd automatic controller 23 of first modulating valve 12 then.
At last, for improving the operation of compressor 6, use a temperature transducer 24 to monitor in the cooling unit upstream and the temperature of the gas in pipe 33.If necessary, can use a sparger 28 that liquid methane is ejected into from holding vessel 1 among the 33A of branch to reduce this temperature.This temperature information is sent to the controller 25 of unadjustable valve 26 and 27 being carried out ON/OFF control, and another valve cuts out so that in valve 26 and 27 one opens.Temperature transducer 30 is measured the temperature in the outlet port of cooling unit 28,29, then this information is sent to proportion integration differentiation (PID) type controller 31 for example, these controller 31 controls are positioned at the modulating valve 32 of the branched pipe 35 of pipe 9, so that liquid gas can arrive sparger 28.The gas that is cooled that arrives the outlet of this sparger 28 passes through a liquid drop separator 29, so that remove any residual droplets that suspends.
Aforesaid equipment connects the following manner operation:
Compressor 6 moves continuously, thereby sucks the gas that is evaporated in the space 4 continuously, and its speed is regulated by following manner.
According to the heat exchange situation between holding vessel outside and the inside, and according to the amount of liquid in the holding vessel, the pressure in the holding vessel changes to a certain extent and regulates as follows:
According to the air pressure in the house steward 7 who records by pressure meter 21, determine the aperture that opens or closes position and valve 15 from 0 to 100% of second valve 13.
When being lower than one corresponding to predetermined pressure P 1The low presentation time, the natural evaporation in the holding vessel is considered to energy that deficiency thinks that ship provides its to be needed, therefore, control valve 13 is taked open mode.It almost is empty or energy requirement when very big that this situation occurs in holding vessel 1.Therefore by vaporizer to house steward's 7 supply gas, thereby keep in the house steward 7 enough pressure being arranged.
When holding vessel 1 is full of, according to the heat exchange situation in the external world, two kinds of situations can appear.Under first kind of situation, from space 4 pass through gas that natural evaporation produces enough but inexcessive, in this case, have only compressor 6 operations, and valve 13 cuts out.In case the pressure in the house steward 7 meets and exceeds low pressure threshold P 1Keep below the P of HVT high voltage threshold simultaneously 2, will this thing happens.Under other situation, pressure arrives one greater than this high pressure P 2Value, and too much by the gas that natural evaporation produced.Then the excess air that must do not burnt by energy producing unit 2 is discharged, and, valve 15 is opened gradually, so that the pressure in the house steward 7 is remained on a substantially invariable high threshold P for this reason 2This controller 20 by for example PID regulating shape is controlled according to the pressure in the house steward 7 who is recorded by pressure meter 21.Valve 15 is by managing 14 to oxidation coating 16 supply gas then.
In addition, compressor 6 sucks from the gas in the space 4 of holding vessel continuously so that this gas delivery is arrived in the house steward 7.As long as the pressure in the house steward remains on high threshold P 2Under, the flow that compressor just can be certain normally is transported to house steward with gas, and more particularly, it can guarantee to be used for to keep being greater than or equal to a setting value to the gas flow of the ingress of the pipe 33 of compressor conveying gas.Like this, during a predetermined set value in air pressure is higher than holding vessel 1, then as mentioned belowly with corresponding increase gas flow the pressure in the holding vessel is reduced by regulating compressor.The increase of this flow can consume by energy producing unit 2 or by oxidation coating 16, thereby prevents that the pressure in the house steward 7 from too raising.
Simultaneously, the liquefied gas pressure that is supplied to vaporizer 10 is carried out servocontrol so that it reaches setting pressure P 0, and utilize 12 pairs of these pressure of first modulating valve on the reflow pipe 11 to adjust, wherein utilizing for example be the controller 23 of PID type regulator, the aperture of coming the valve of control valve in 0 to 100% scope according to the pipe 9 interior pressure that recorded by pressure meter 22.When this pressure keeps being less than or equal to a predetermined value P 4The time, valve 12 keeps cutting out, and works as pressure at P 4With a predetermined high-voltage value P 5Between the time, valve 12 is opened gradually, wherein equals P at pressure 5The time valve 12 open fully.
Compressor 6 is regulated by an instruction that is used to set the inclination angle of compressor blade, i.e. compressor reception form is the instruction of a value in the scope of 0 to 100% the maximum open-angle of blade, and this value is chosen to be value maximum in two blade angle setting values.Each value in these two values all is to be provided according to calculating a relative error of setting between flow or force value and the measured respective actual value by the PID regulator of controller 17.Therefore, the PID regulator of controller 17 just is configured for handling respectively the device by pressure and flow measuring device 18 and 19 information that transmit, so that control is to the adjusting of compressor.
For calculating relative error, controller 17 is suitable for the reference pressure value P by operator's input RefWith a reference stream value D RefBe stored in the storage.Reference flow D RefCorresponding to by the determined peak rate of flow of the operating range of compressor, and should preferably keep below the gas flow that in identical time span, in the space 4 of holding vessel, produces by natural evaporation.This adjusting is designed such that flow can not significantly drop to reference value D RefUnder, because otherwise can have the danger of compressor shutdown.
The actual pressure of gas is measured by pressure meter 18 in the holding vessel 1, and with this measured value termly with the PID regulator of controller 17 in setting value P RefCompare.Gas flow is recorded by the ingress of flowmeter 19 at the compressor 6 of pipe in 33, and with this measured value termly with another PID regulator of controller 17 in setting value D RefCompare.Each PID regulator calculates the relative error of relevant these measured values, described error can be on the occasion of or negative value, and be defined as institute's measuring pressure or flow value and the difference between the setting value accordingly divided by the size of the measuring range of corresponding sensor.
Each relative error of pressure that is calculated and flow corresponds respectively to the first setting value O of blade angle 1With the second setting value O 2, described value is between 0 to 100%, and bigger value is reserved as the instruction of setting blade tilt in these values, and this instruction is sent to compressor 6.Setting pressure P RefValue corresponding to the setting value O of blade tilt RefIn addition, because for given blade tilt, the flow by compressor changes with pressure, so corresponding to setting flow D RetThe setting value of blade tilt depend on the inlet pressure of compressor.
The first value O of blade set angle 1Increase with pressure, thereby become algebraic relation ground to increase along with the relative error that measured pressure meter is calculated.When relative error is zero, promptly work as pressure and equal setting pressure P RefThe time, the inclination angle setting value O of blade 1Equal O Ref, for example equal 30%.If pressure increases, then controller 17 increases inclination angle setting value O 1, so that blade is opened to bigger degree, thus augmented flow, and then reduce pressure.
Then, the pressure that records reduces, and near setting value P RefThereby the relative pressure error reduces.Controller 17 makes the first value O of inclination angle setting value 1Reduce, because the opening degree of blade is less, so this also makes flow reduce.Therefore flow is towards setting value D RefDescend, pressure returns setting value P simultaneously Ref
As example,, the air pressure in the holding vessel that is recorded by pressure meter 18 is higher than setting value P if sharply becoming Ref, and the flow and the setting value D at place, the suction port of compressor that records by flowmeter 19 RefCompare and rise lessly, this situation may occur in the specified moment after holding vessel has been filled, then the first maximum value O in two of blade tilt setting values 1Be selected as the instruction that is sent to compressor 6.In this case, controller 17 transmits the blade pivot instruction corresponding with larger opening, so that increase gas flow, thereby little by little makes the pressure in the holding vessel be reduced to P Ref
Generally speaking, the adjusting that is realized can compensate pressure increase or flow decline with respect to setting value soon.
In addition, the cooling units 28,29 that are used to supply gas in the pipe 33 of compressor 6 make gas temperature can remain on a normal level T 0, to optimize the operation of compressor 6.Temperature in pipe 33 the upstream portion is measured by a sensor 24, and this temperature has constituted with the desired temperature that is offered valve 26 and 27 by controller 25 and forms the Temperature Feedback (temperature return) of comparison to carry out corresponding on/off operation.When measured temperature was higher than setting value, valve 26 was opened and valve 27 cuts out, thus gas only along first 33A of branch by and pass cooling unit 28,29.
On the contrary, when measured temperature was lower than setting value, valve 27 was opened and valve 26 cuts out, and modulating valve 32 also controlled device 25 is controlled to fully and cuts out, to avoid producing the delay of liquid in first 33A of branch.
Cooling unit is made of sparger 28 and liquid drop separator 29, and wherein sparger 28 is used to spray the liquid gas from least one holding vessel 1.Regulate sparger 28 according to the thermometry of being carried out in the cooling unit outlet by sensor 30, this sensor 30 sends information to the controller 31 that is used for regulating and controlling valve 32.
Certainly, controller 17,20,23,25 and 31 can be integrated in the CCU Center Central System, all essential data all are sent to this CCU Center Central System: the flow in pressure in the holding vessel 1 and the pipe 33, pressure in pressure in the pipe 9, the house steward 7, and manage 33 and 35 interior temperature, and this CCU Center Central System sends instruction to actuator.

Claims (13)

1. equipment that is used for gaseous fuel is supplied to the energy producing unit (2) of liquefied gas carrier, this fuel is taken from least one holding vessel (1) on the described ship, described holding vessel (1) accommodates the gas phase gas in described liquid gas (3) and the space above this liquid phase (4), and this equipment comprises:
Be suitable for sucking the compressor (6) of described gas phase gas from described holding vessel (1) by a supplying pipe (33), the outlet of this compressor (6) is connected to a house steward (7) who is used to supply described energy producing unit (2);
Be used for described liquid gas is fed to the pump (8) of the inlet of a vaporizer (10), the outlet of this vaporizer (10) links to each other with described house steward (7); And
The automatic controller (17) that links to each other with the controlling device of described compressor (6);
This equipment is characterised in that, described automatic controller (17) links to each other with the device (19) of flow of described gas phase gas in being used to measure described supplying pipe (33), and link to each other with the device (18) of pressure of described gas phase gas in the described space (4) that is used to measure described holding vessel (1), and comprise and be used for handling by described measuring device (18, the device of the information that 19) provides is so that control the adjusting of described compressor (6).
2. an equipment as claimed in claim 1 is characterized in that, described automatic controller (17) is suitable for writing down the setup pressure value (P by operator's input Ref) and a setting flow value (D Ref); And the described device that is used for handling the information that is provided by described measuring device (18,19) is suitable for calculating the pressure that records or flow and setting value (P accordingly Ref, D Ref) between each relative error of difference.
3. equipment as claimed in claim 1 or 2, it is characterized in that, second automatic controller (20) be suitable for control be used for regulating the described liquid gas be supplied to described vaporizer (10) flow flow regulator (13) and be used for regulating the flow regulator (15) of the interior gas flow of an overvoltage discharge pipe (14) that described house steward (7) is linked to each other with a gas cyaniding device (16); And described second control device (20) links to each other with the device (21) of pressure in being used to measure described house steward (7), and utilization is controlled described flow regulator (13,15) by the information that described manometer (21) provides.
4. equipment as claimed in claim 1 or 2, it is characterized in that, be provided with cooling unit (28 being used for gas phase gas is supplied on the described supplying pipe (33) of this compressor (6), 29), described cooling unit activated according to the information that is provided by temperature measuring equipment (24), and this temperature measuring equipment (24) is suitable for measuring the gas temperature in the described supplying pipe (33) of described cooling unit upstream.
5. equipment as claimed in claim 4, it is characterized in that, described cooling unit comprises that one is used for spraying the injection apparatus (28) of the liquid gas take from least one holding vessel (1), and a liquid drop separator (29) that is positioned at described injection apparatus (28) downstream.
6. equipment as claimed in claim 5, it is characterized in that, described liquid gas injection apparatus (28) is supplied by a liquid gas branched pipe (35), this branched pipe (35) links to each other with a liquefied gas supplying pipe (9) of described vaporizer (10), described branched pipe (35) is equipped with a modulating valve (32) by controller (31) control, and this controller (31) links to each other with the temperature measuring equipment (30) of the gas temperature that is suitable for measuring described cooling unit downstream.
7. equipment as claimed in claim 4, it is characterized in that, be used for supplying the described supplying pipe (33) of gas phase gas partly by two parallel branches (33A to this compressor (6), 34) constitute, and described cooling unit (28,29) is installed in the branch (33A) in these two branches.
8. equipment as claimed in claim 7, it is characterized in that, described (the 33A of branch, 34) each in all is equipped with a uncontrollable valve (26,27), these two valves link to each other with a controller (25), and this controller (25) is designed so that valve (26,27) in one opens and another is closed, and described controller (25) links to each other with the described temperature measuring equipment (24) of described cooling unit upstream.
9. an equipment as claimed in claim 1 is characterized in that, the described controlling device that is used to regulate described compressor (6) comprises and be suitable for the blade that pivoted gradually between the two positions that described two positions are respectively open position and closed position.
10. an equipment as claimed in claim 2 is characterized in that, the described controlling device that is used to regulate described compressor (6) comprises and be suitable for the blade that pivoted gradually between the two positions that described two positions are respectively open position and closed position.
11. a method of regulating the compressor (6) of equipment as claimed in claim 9 is characterized in that described automatic controller (17) is regulated described compressor (6) by the pivot that only acts on described blade.
12. a method of regulating the compressor (6) of equipment as claimed in claim 10 is characterized in that described automatic controller (17) is regulated described compressor (6) by the pivot that only acts on described blade.
13. a regulating method as claimed in claim 12, this method is carried out following steps:
Carry out pressure and two kinds of measurements of flow respectively by described measuring device (18,19), and termly with measurement result and described setting value (P Ref, D Ref) compare, to calculate the relative error of two kinds of correspondences;
Make the corresponding first and second setting value (O at the inclination angle of the relative error of each pressure that calculates and flow and described blade 1And O 2) be associated;
Described automatic controller (17) is with these two inclination angle setting value (O 1, O 2) in a bigger conduct be sent to the instruction of the blade tilt of this compressor (6).
CN200510081711A 2004-05-14 2005-05-13 Installation for delivering combustible gas to a energy generator of a ship and regulating method thereof Expired - Fee Related CN100593093C (en)

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FR0450945A FR2870206B1 (en) 2004-05-14 2004-05-14 INSTALLATION FOR SUPPLYING GASEOUS FUEL TO AN ENERGY PRODUCTION ASSEMBLY OF A LIQUEFIED GAS TRANSPORT VESSEL.
FR0450945 2004-05-14

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KR101245977B1 (en) 2013-03-20
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FR2870206A1 (en) 2005-11-18
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CN1707151A (en) 2005-12-14

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