WO2015165468A1 - Système et procédé de mesure de la quantité de combustible fournie dans une opération de mise en soute - Google Patents

Système et procédé de mesure de la quantité de combustible fournie dans une opération de mise en soute Download PDF

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Publication number
WO2015165468A1
WO2015165468A1 PCT/DK2015/050104 DK2015050104W WO2015165468A1 WO 2015165468 A1 WO2015165468 A1 WO 2015165468A1 DK 2015050104 W DK2015050104 W DK 2015050104W WO 2015165468 A1 WO2015165468 A1 WO 2015165468A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
bunker fuel
pressure
flow meter
bunker
Prior art date
Application number
PCT/DK2015/050104
Other languages
English (en)
Inventor
Finn Jeppesen
Original Assignee
A.P. Møller - Mærsk A/S
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by A.P. Møller - Mærsk A/S filed Critical A.P. Møller - Mærsk A/S
Priority to EP15786455.4A priority Critical patent/EP3137961A4/fr
Priority to KR1020167033337A priority patent/KR101886844B1/ko
Priority to SG11201609015SA priority patent/SG11201609015SA/en
Publication of WO2015165468A1 publication Critical patent/WO2015165468A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
    • B63B17/0027—Tanks for fuel or the like ; Accessories therefor, e.g. tank filler caps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
    • B63B27/25—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines for fluidised bulk material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/04—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/76—Arrangements of devices for purifying liquids to be transferred, e.g. of filters, of air or water separators
    • B67D7/763—Arrangements of devices for purifying liquids to be transferred, e.g. of filters, of air or water separators of air separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D9/00—Apparatus or devices for transferring liquids when loading or unloading ships
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/005—Pipe-line systems for a two-phase gas-liquid flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/10—Arrangements for supervising or controlling working operations for taking out the product in the line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/18—Arrangements for supervising or controlling working operations for measuring the quantity of conveyed product
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/005—Valves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/08—Air or gas separators in combination with liquid meters; Liquid separators in combination with gas-meters
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/36—Arrangements of flow- or pressure-control valves

Definitions

  • the present disclosure relates to a system for measuring the amount of bunker fuel delivered in a bunkering operation for a large ocean going ship with a vibrating meter, such as e.g. a Coriolis flow meter, in particular a ⁇ i system that prevents false or erroneous measurement and is reliable for use with bunkering operations of larger ocean going vessels.
  • a vibrating meter such as e.g. a Coriolis flow meter
  • Bunker fuel comprises a relatively heavy petroleum derivative. There are multiple grades of fuel that may comprise a bunker fuel. Bunker fuel is generally heavier and more viscous than marine diesel .
  • Bunkering refers to the practice of storing and transferring marine fuel oils, which have come to be known as bunker fuels.
  • large amounts of fuel may be temporarily stored in a barge or other container or tank for the purpose of transferring fuel from shore or from the barge to a large ship.
  • Bunker fuel may be located in tanks on a dock or other port facility, or may be carried by a barge or other refueling vehicle.
  • flowmeters such as vibrating flowmeters for providing a more accurate measurement of the amount of heavy fuel and marine gasoil that has been delivered.
  • Vibrating meters such as for example, vibrating densitometers and Coriolis flow meters are generally known and are used to measure mass flow and other information for materials within a conduit.
  • Known flow meters have one or more conduits of straight or curved configuration.
  • Each conduit configuration in a Coriolis mass flow meter has a set of natural vibration modes, which may be of simple bending, torsional, or coupled type.
  • Each conduit can be driven to oscillate at a preferred mode.
  • Material that flows into the flow meter sensor assembly from a connected pipeline on the inlet side of the sensor is directed through the conduit, and exits the sensor through the outlet side of the sensor.
  • the natural vibration modes of the vibrating material filled system are defined in part by the combined mass of the conduits and the material flowing within the conduits.
  • a driving force applied to the conduit causes all points along the conduit to oscillate with identical phase or small "zero offset," which is a time delay measured at zero flow.
  • Coriolis forces cause each point along the conduit to have a different phase. For example, the phase at the inlet end of the sensor lags the phase at the centralized driver position, while the phase at the outlet leads the phase at the centralized driver position.
  • Pick-off sensors on the conduit produce sinusoidal signals representative of the motion of the conduit. Signals output from the pick-off sensors are processed to determine the phase difference between the pick-off sensors.
  • the phase difference between the two or more pick-off sensors is proportional to the mass flow rate of material flowing through the conduit.
  • the mass flow rate of the material can be determined by multiplying the phase difference by a Flow Calibration Factor (FCF) .
  • FCF Flow Calibration Factor
  • the sensor assembly of the flow meter subsequently determines a flow rate by multiplying the FCF by the phase difference of the pick-off sensors.
  • other calibration factors can be taken into account in determining the flow rate. Improvements in Coriolis flow meters have made it possible to obtain more reliable readings even in the event of entrained air.
  • the readings with known technology are typically at 0.5% accuracy, but often fail due to too much air.
  • the reliability i.e. whether you get a reading, or whether your reading "fails", i.e. not able to give you a quantity
  • the flow meter and the pipe leading thereto may be partially filled with bunker fuel rather than completely empty or completely full.
  • the fuel measurement usually comprises an empty-full-empty batching process, thereby allowing air to be trapped in the system.
  • Bunker fuel is generally heavier and more viscous than e.g. gasoline or diesel and thus a significant amount of air can be trapped in the heavy fuel oil and can be relatively difficult to remove therefrom.
  • a problem can exist especially, whenever flow is stopped, for example at the beginning or at the end of the bunkering process when the valves and pumps delivering the fuel are closed. Air or gas in the system often results in measuring errors and in unreliable results for the measurement of the amount of bunker fuel transferred.
  • Prior art methods using Coriolis flow meters focus on using fluid switches to detect the presence of bunker fuel at a position just upstream and just downstream of the Coriolis flow meter, and this prior art method is able to delay or stop measuring (totalizing) when the Coriolis flow meter is not filled completely with bunker fuel.
  • this prior art method does provide any measures to effectively avoid having air or gas in the flow meter. Consequently, with this known method the process is often interrupted due to the presence of air or gas and with the interruptions the overall result is not a reliable procedure and measurement.
  • the embodiments described below provide a system and method that substantially improve reliability of measuring the amount of bunker fuel transfer during a bunker fuel operation with a system including vibrating flowmeter .
  • a system for measuring the amount of bunker fuel such as for example heavy fuel oil, transferred during a bunkering activity
  • the system comprises a pipe extending from an inlet to an outlet, the pipe being configured to transport bunker fuel from the inlet to the outlet, an air and/or gas separator connected to the pipe at a first position, the air and/or gas separator having a gas and/or air outlet for discharging air and/or gas removed from the pipe, a Coriolis flow meter including a sensor assembly in the pipe and meter electronics, the Coriolis flow meter being configured to measure a flowrate of the bunker fuel as it flows through the Coriolis flow meter, the pipe comprising a downwardly extending portion arranged downstream of the first position and upstream of the Coriolis flow meter, an electronically controlled backpressure valve in the pipe at a position downstream of the Coriolis flow meter, the backpressure valve having an adjustable restriction or throttling effect on any fluid flowing through the backpressure valve, a
  • an electronically controlled back pressure valve that is connected to an electronic control unit that is in receipt of a signal representing the pressure upstream of the back pressure valve and downstream- and lower than an air and gas separator at first point, and configuring the electronic control unit to maintain a certain pressure level sensed by the pressure sensor it becomes possible to ensure that the back pressure valve throttles the flow if there is air or gas upstream of the Coriolis flow meter.
  • the restriction or throttling effect of the back pressure valve ensures that any air or gas upstream will take the way of the least resistance through the air or gas separator, thus avoiding air or gas to be included in the bunker fuel flowing through the Coriolis flow meter.
  • the result is that more than 90% of bunkering gives usable readings, the reason being that the air in the system can be handled with the present invention.
  • the predetermined pressure value substantially corresponds to the static pressure created by a column of bunker fuel with a height that substantially corresponds to the height covered by the downwardly extending portion of the pipe or corresponds to the height difference between the first position and the second position.
  • the electronic control unit is configured to adjust the position and thereby increase the restriction or throttling effect of the backpressure valve when the pressure detected by the pressure sensor is below a first threshold, and to adjust the position and thereby decrease the restriction or throttling effect of the backpressure valve when the pressure detected by the pressure sensor is above a second threshold that is higher than the first threshold.
  • the first threshold is slightly below the static pressure created by a column of bunker fuel with a height that substantially corresponds to the height covered by the downwardly extending portion of the pipe
  • the second threshold is slightly above the static pressure created by a column of bunker fuel with a height that substantially corresponds to the height covered by the downwardly extending portion of the pipe.
  • the gas and/or air outlet of the air separator is connected to the atmosphere via conduit to an overflow tank, the conduit including detection means such as a sight glass for verifying that no bunker fuel is flowing to the overflow tank.
  • the inlet comprises a bunkering manifold, preferably the inlet comprising two bunkering manifolds, one bunkering manifold being suitable to form a port bunkering manifold of a ship and the other bunkering manifold being suitable for forming the starboard bunkering manifold of a ship.
  • the outlet is connected to a bunker fuel tank.
  • the downwardly extending portion includes a substantially vertically extending drop pipe section.
  • the first position where the air separator connects to the pipe is close to or at the upper end of the drop pipe section .
  • the second position where the pressure sensor connects to the pipe is close to or at the lower end of the drop pipe section .
  • the system further comprises a first fluid switch located just upstream of the Coriolis sensor to determine if the pipe just upstream of the Coriolis sensor is filled with bunker fuel and a second fluid switch located just downstream of the Coriolis sensor to determine if the pipe just downstream of the Coriolis sensor is filled with bunker fuel, the electronic control unit being in electrical communication with the first fluid switch and with second fluid switch, and the electronic control unit being configured to start measuring the a flowrate of the bunker fuel only when both the first fluid switch and the second fluid switch indicate the presence of bunker fuel in the pipe.
  • the electronic control unit is configured to stop measuring a flowrate of the bunker fuel when one of the fluid switches indicates that the pipe at the position of the fluid switch concerned is not filled with bunker fuel .
  • the object above is also achieved in accordance with a second aspect by providing large ocean going ship with a system as defined above, wherein the inlet of the pipe is connected to a port bunker manifold of the ship and to a starboard bunker manifold of the ship and the outlet of the pipe is connected to a bunker oil fuel tank of the ship .
  • the object above is also achieved in accordance with a third aspect by providing a method for transferring bunker fuel from a barge or other container to a bunker fuel tank in a ship, using a pipe, the pipe including a Coriolis flow meter configured for measuring a flow of bunker fuel through the pipe and a restriction or throttling valve downstream of the Coriolis flow meter, an air or gas vent being connected to the pipe at a first position where the pipe is higher than- and upstream of the Coriolis flow meter, the method comprising measuring a pressure in the pipe at a second position between the air or gas vent and the Coriolis flow meter, the second position being lower than the first position, gradually increasing a pumping rate of bunker fuel into the pipe to a nominal pumping rate, and applying a high restriction or throttling effect with the restriction or throttling valve until the measure pressure exceeds a first threshold .
  • the method further includes after the measured pressure has exceeded the first threshold: adjusting the restriction or throttling effect of the restriction or throttling valve with the aim to keep the measured pressure above the first threshold by increasing the restriction or throttling effect and below a second threshold that is slightly higher than the first threshold be reducing the restriction or throttling effect .
  • the first threshold substantially corresponds to the static pressure created by a column of bunker fuel with a height that substantially corresponds to the height difference between the first position and the second position.
  • a vent line is connected to the venting position, the method further comprising periodically checking for bunker fuel in the vent line.
  • Fig. 1 is a side view of a cargo ship according to an example embodiment
  • Fig. 2 is a rear view of the cargo ship of Fig. 1 and of a bunkering barge during a bunkering operation
  • Fig. 3 is a diagrammatic representation of a bunker fuel transfer and measuring system
  • Fig. 4 is a sectional view at an air/gas separation point in Fig. 3 and
  • Fig. 5 is a diagram of a method of transferring bunker fuel and measuring the transferred bunker fuel.
  • Fig. 1 shows a large ocean going cargo ship 1 according to an exemplary embodiment in side view.
  • the large ocean going cargo ship 1 is a container ship.
  • the ship or freighter 1 could just as well be a general cargo vessel, a tanker, a dry- bulk carrier, a multipurpose vessel, a reefer ship, a passenger ship or any other large ocean going type of cargo ship that uses liquid fuel, such as e.g. fuel oil or heavy fuel oil.
  • the large ocean going cargo ship 1 has a hull 2 and one or more engine rooms 3 provided inside the hull 2.
  • the large ocean going cargo ship 1 is powered by one or more large self-igniting internal combustion engines 4, i.e. four-stroke or two-stroke self-igniting combustion engines 4 located in an engine room 3.
  • the large self- igniting internal combustion engine (s) 4 drive (s) the propellers ( s ) and there may be one or more auxiliary engines (generator sets) that provide electrical power and heat for various consumers of electrical power aboard the large ocean ship 1.
  • At least one fuel tank 8 is provided in the hull 2 in a suitable location. Typically, there will be several interconnected bunker fuel tanks 8.
  • the large ocean going cargo ship 1 also has one or more funnels 6 and a bridge 7. Containers are shown on the deck in container bays filled with rows of containers in a plurality of tiers. Containers can also be stowed inside cargo space in the hull 2.
  • Fig. 2 is a diagrammatic rear view of the ocean going ship 1 when it is moored and a bunkering barge 5 alongside and with the starboard bunkering manifold 9 connected to the bunkering barge via a hose 12 that is supported by a crane of the bunkering barge 5.
  • the ocean going ship 1 could also receive bunker fuel from tanks or other storage facilities on shore using the port bunkering manifold 9.
  • the bunkering barge 5 is moored and alongside the ocean going ship 1 and the free end of hose 12 is connected to one of the two bunkering manifolds 9.
  • Fig. 3 shows diagrammatically a system 10 for transferring bunker fuel from a storage facility, such as a bunkering barge 5 to a recipient, such as e.g. a bunker fuel tank 8, i.e. a custody transfer.
  • the system 10 is configured for measuring the amount of bunker fuel that is transferred during a bunkering operation.
  • the bunker fuel can be fuel oil or heavy fuel oil, the system being particularly useful for heavy fuel oil. but is just as suitable for marine gasoil.
  • the system 10 includes a pipe 11 that extends from an inlet of the pipe 11 to an outlet of the pipe.
  • the pipe 11 may comprise a preexisting pipe that is part of a larger system.
  • the inlet of the pipe 11 is formed by a bunkering manifold 9 and the outlet of the pipe 11 is connected to the bunker fuel tank 8.
  • the bunkering manifolds 9 are typically arranged at deck level whilst the bunker fuel tank 8 is arranged in the ship 1 at a level below deck level.
  • the port bunkering manifold 9 and the starboard bunkering manifold 9 are each provided with a flange that is configured for connection to a hose 12 that extends from a source of bunker fuel, such as the bunkering barge 12.
  • a source of bunker fuel such as the bunkering barge 12.
  • the hose 12 is suspended from a crane on the bunkering barge 5 (the crane can also be on shore) .
  • the bunkering barge 5 is provided with a bunker fuel tank 40 that contains an amount of bunkering fuel to be transferred to the bunker fuel tank 8 aboard the ship 1.
  • a pipe or other suitable conduit connects the bunker fuel tank 40 with the hose 12.
  • the bunkering barge 5 is provided with a bunker fuel pump 41 that is configured to pump the bunker fuel from the bunker fuel tank 40 to the hose 12.
  • the hose 12 is connected to the inlet of a pipe 11 at the bunker manifold 9. If the fuel is heavy fuel oil the tank 40 will be heated so that the heavy fuel oil remains flowable and the bunkering fuel tank 8 aboard the ocean going ship 1 will also be heated at all times to keep the heavy fuel flowable.
  • the pipe 11 extends from its inlets at the bunkering manifolds 9 to an outlet that is in this embodiment connected to the bunker fuel tank 8.
  • the bunker fuel that is to be transported into the bunker fuel tank 8 enters at one of the bunkering manifolds 9 and flows through the pipe 11 to the bunker fuel tank 8.
  • the flow direction of the fuel through the pipe 11 is under normal circumstances always from the inlet at the bunkering manifold 9 to the outlet at the bunker fuel tank 8.
  • the bunkering manifold 9 is typically arranged at deck level.
  • a manifold valve 13 is arranged in the pipe 11 just downstream, i.e. close to, each of the bunkering manifolds 9.
  • the manifold valve 13 is a valve that can open and close manually by an operator. Downstream of the manifold valve 13 the pipe 11 extends downwards in order to cover a height difference "h".
  • the height difference can as shown be covered by a substantially vertically extending drop pipe 15, but it is understood that the height difference "h" could also be covered by a sloping section of the pipe 11.
  • the pipe 11 comprises a substantially vertically extending drop pipe 15.
  • An air and gas separation point 27 is provided at a first position in the pipe 11 downstream of the manifold valve 13, preferably close or at to the position where the pipe 11 starts to extend in a downward direction.
  • the air separation point 27 is arranged at a first position where the pipe 11 is at its highest, or at least close to a position where the pipe 11 is at its highest.
  • An air/gas separator 14 is connected to the pipe 11 at the air/gas separation point 27.
  • the air/gas separator 14 can also be provided in the pipe 11, at or near the highest position of the pipe 11 and before the pipe 11 starts to extend downwards.
  • Fig. 4 shows the air/gas separator 14 at a slightly larger scale than Fig.3, with the pipe 11 shown in cross-sectional view.
  • the air separator is in an embodiment connected at the air separation point 27 to the top of the pipe 11 (as shown in Fig. 4) by a feed conduit 28.
  • the air separation point 27 is located at the highest point of the pipe 11 for facilitation of collection and removal of air or gas from pipe 11.
  • the air/gas separator 14 is provided with a housing with a chamber connected to an inlet at its lower end and with an outlet at a higher position,
  • the chamber contains a floating device (e.g. a cylinder or ball - represented in Fig. 4 by a ball) that when lifted closes off the outlet port.
  • a floating device e.g. a cylinder or ball - represented in Fig. 4 by a ball
  • a gas/air evacuation pipe 26 connects the outlet of the air/gas separator 14 to an overflow tank 32.
  • a sight glass spinner 30 is arranged in the air/gas evacuation pipe 26 to detect the presence of bunker fuel in the air/gas evacuation pipe. The presence of bunker fuel in the air/gas evacuation pipe 26 is undesirable, but in case any bunker fuel should inadvertently enter the air/gas evacuation pipe 26 this fuel bunker fuel is collected in the overflow tanks 32.
  • the overflow tank 32 is provided with a vent pipe 34 that allows any excess air/gas to be vented to the atmosphere.
  • a first pressure sensor 16 is connected to the pipe 11 at a second position where the pipe has extended downwards over a distance that corresponds to the height "h".
  • the height difference between the first position of the air/ separation point 27 and the second position of the first pressure sensor 16 is equal to the height indicated by the letter "h" in Fig. 3.
  • the first pressure sensor 16 detects the pressure in the pipe 11 at the second position and the first pressure sensor 16 is connected via a signal cable (lead) to an electronic control unit 50.
  • the electronic control unit 50 is in receipt of a signal corresponding to the pressure in the pipe 11 at the location where the first pressure sensor 16 is connected to the pipe 11.
  • This static pressure will hereafter be referred to as the target pressure.
  • a vibrating flow meter 20 Downstream of the downwardly extending portion of the pipe 11 a vibrating flow meter 20 is provided downstream of the downwardly extending portion of the pipe 11 .
  • the vibrating flow meter 20 is a Coriolis flow meter 20 that includes a preferably U- shaped pipe section, preferably a double U-shaped pipe section.
  • the Coriolis flow meter 20 includes a sensor assembly and is connected via leads to meter electronics 34.
  • the meter electronics 34 are configured to create a signal representing the flow rate of bunker fuel flowing through the Coriolis flow meter 20.
  • the meter electronics, connected to the sensor assembly can be configured to measure one or more characteristics of bunker fuel flowing though the Coriolis flow meter 20, such as, for example, density, mass flow rate, volume flow rate, totalized mass flow, and other information.
  • the vibrating meter 20 is described as comprising a Coriolis flow meter, the vibrating meter 20 could just as easily comprise another type of vibrating meter, such as a vibrating densitometer, a vibrating volumetric flow meter, or some other vibrating meter that lacks all of the measurement capabilities of Coriolis flow meters. Therefore, the present embodiment should not be limited to Coriolis flow meters. Rather, the meter electronics 34 may be in communication with other types of sensor assemblies, with a flowing fluid or a stationary fluid.
  • the meter electronics 34 can process the sensor signals in order to obtain one or more flow characteristics of the material flowing through the Coriolis flow meter 20. It should be understood that the meter electronics 20 may include various other components and functions that are generally known in the art. These additional features are omitted from the description and figures for the purpose of brevity. Therefore, the present embodiment should not be limited to the specific embodiments shown and discussed .
  • the meter electronics 34 is connected to the electronic control unit 50 via a communication cable.
  • the electronic control unit 50 is in response of a signal from the Coriolis flow meter 20 that represents the flow rate of bunker fuel through the Coriolis flow meter 20.
  • a first fluid switch 17 is connected to the pipe 11 just upstream of the Coriolis flow meter 20.
  • the first fluid switch 17 is in an embodiment configured to detect the presence of liquid in the pipe 11, i.e. it forms a liquid detector.
  • the first fluid switch signal can comprise a signal indicating one or more flow conditions, such as a liquid level, upstream of the flowmeter 20.
  • the first fluid switch 17 is connected to the electronic control unit 50 via a signal cable.
  • the electronic control unit 50 is in receipt of a signal indicating the presence liquid in the pipe 11 at the position of the first fluid switch 17.
  • a second fluid switch 19 that is otherwise identical to the first fluid switch 17, is arranged just downstream of the Coriolis flow meter 20.
  • the second fluid switch 19 is also connected to the electronic control unit 50 by a signal cable.
  • the electronic control unit 50 is in receipt of a signal indicating the presence of liquid in the pipe 11 at the position of the second fluid switch 19.
  • a second pressure sensor 18 is connected to the pipe 11 downstream of the Coriolis flow meter 20.
  • a signal cable connects the second pressure sensor 18 to the electronic control unit 50.
  • a temperature sensor 21 is connected to the pipe 11 at a position downstream of the Coriolis flow meter 20.
  • the temperature sensor 21 is connected to the electronic control unit 50 by a signal cable, and thus the electronic control unit 50 is in receipt of a signal indicating the temperature of any liquid in the pipe at the position of the temperature sensor 21.
  • a back pressure valve 22 is arranged in the pipe 11 at a position downstream of the Coriolis flow sensor 20 and downstream of the second pressure sensor 18.
  • the fluid switch 19 must be arranged between the Coriolis flow sensor 20 and the back pressure valve 22.
  • the back pressure valve 22 has a range of positions and is capable of applying an adjustable degree of restriction or throttling to the fluid flowing through the back pressure valve 22, the degree of restriction or throttling depending on the position of the back pressure valve 22.
  • the back pressure valve 22 includes a restricting element, such as a variable size orifice or other suitable means to apply a variable restriction to the fluid flowing through the back pressure valve 22, which is in an embodiment a butterfly valve.
  • the backpressure valve 22 can be of any suitable type e.g.
  • the position of the restricting element is electronically adjusted.
  • the back pressure valve 22 is an electronically controlled valve, so that an electric signal can be used to adjust the opening or the degree of restriction or throttling that is applied.
  • the back pressure valve 22 is connected to the electronic control unit 50 via a signal cable.
  • the electronic control unit 50 can communicate a control signal to the back pressure valve 22 in order to arrange that the back pressure valve 22 has the correct position, i.e. applies the correct amount of restriction throttling to the fluid flowing there through.
  • the back pressure valve 22 communicates a signal representing the position of the restriction or throttling element to the electronic control unit 50.
  • the electronic control unit 50 is connected to a general- purpose computer, a micro processing system, a logic circuit, or some other general purpose or customized processing device.
  • the general purpose computer 55 is provided with a user interface.
  • the computer 55 is connected to the electronic control unit via a signal cable or via a wireless connection and the computer can be 55 can be located near the electronic control unit, or be at a remote location.
  • the remote location can be on the oceangoing ship 1 can be at another location, such as for example in the headquarters of a shipping company that operates the oceangoing ship 1.
  • the various sensors, meter electronics, and backpressure valve are in electrical communication with the electronic control unit 50 via leads. It should be appreciated however, that in other embodiments, the various sensors, switches, valves and electronics a may be in communication via a wireless interface .
  • the electronic control unit 50 is configured to attempt to maintain a predetermined pressure such as the above- mentioned target pressure, in the drop pipe 15 at the second position as measured by the first pressure sensor 16.
  • the electronic control unit 50 is configured to adjust and control the position of the back pressure valve 22 in there with the restriction effect of the back pressure valve 22 accordingly.
  • the electronic control unit 50 is configured to respond by adjusting the back pressure valve 22 to increase the throttling effect thereof when the pressure that is detected by the first pressure sensor 16 falls below a first threshold and the electronic control unit 50 is configured to respond by adjusting the back pressure valve 22 to decrease the throttling effect thereof when the pressure that is detected by the first pressure sensor 16 exceeds a second threshold.
  • the first threshold being slightly lower than the above-mentioned predetermined pressure and the second threshold being slightly higher than the above-mentioned predetermined pressure.
  • the predetermined pressure is the above-mentioned target pressure that corresponds to the pressure at the bottom of a column of bunker fuel with a height h.
  • This increased restriction will cause the pressure in the pipe 11 upstream of the back pressure valve to increase and the increased pressure will facilitate the removal of any gas or air in the pipe 11 upstream of the back pressure valve through the air/gas separator 14.
  • the pressure measured by the first pressure sensor 16 will increase and when the pressure rises to a given extent above the target pressure the electronic control unit 50 will instruct the back pressure valve 22 to reduce its restriction effect.
  • a too high pressure in the pipe 11 at the second position is undesirable because this will create a too high back pressure for the pump 41 and risk for the hose 12 to bust.
  • the system 10 is configured with a closed loop feedback control system that controls the pressure in the pipe at 11 at the second position with the aim to keep this pressure close to the target pressure.
  • a closed loop feedback control system that controls the pressure in the pipe at 11 at the second position with the aim to keep this pressure close to the target pressure.
  • Fig. 5 illustrates a method of transferring bunker fuel and measuring the amount transferred.
  • a source of bunker fuel such as a barge 5
  • a pump associated with the source of bunker fuel will be used to pump bunker fuel into the pipe 11.
  • the packing phase is started and the electronic control unit 50 instructs in step 101 the back pressure valve 22 to be closed or almost closed so that it will apply a high restriction effect at the start of the bunker fuel transfer procedure, i.e. the packing phase.
  • the operator opens the manifold valve 13 in step 102.
  • step 103 pumping bunker fuel from the source of bunker fuel into the pipe 11 is slowly started in step 103.
  • the electronic control unit 50 monitors whether bunker fuel is present both just upstream and just downstream of the Coriolis flow meter 20.
  • the electronic control unit 50 will monitor the presence of bunker fuel with the liquid sensors 17,19 throughout the bunker fuel transfer procedure, and the electronic control unit is configured, step 105, to start measuring the amount of bunker fuel transferred (i.e. start totalizing the flow rate) soon as both liquid switches 17, 19 have a positive signal.
  • the pressure at the low-end of the drop pipe 15 is measured with the first pressure sensor 16, step 105. If the measured pressure is below a first threshold, which is typically a pressure slightly below the above- mentioned target pressure, the electronic control unit 50 gradually closes the back pressure valve 22 to increase its restricting effect, step 106 and 111. Keeping the back pressure valve 22 closed or nearly closed, i.e. applying a high restriction effect, during the packing phase ensures that any air or gas that is present in the system (coming from hose 12 or being present in pipe 11 before pumping started) will be evacuated effectively via the air/gas separator 14 because the flow path through the back pressure valve 22 has a high resistance thereby causing the air/gas to take out the way of the least resistance through the air/gas separator 14.
  • a first threshold which is typically a pressure slightly below the above- mentioned target pressure
  • step 106 When the electronic control unit 50 determines that pressure sensor 16 gives a signal that the measured pressure is over the first threshold, step 106, the pipe 11 is fully packed with bunker fuel and any air or gas that was trapped at the start of the bunkering procedure has now been evacuated, thus, ending the packing phase and starting the transfer phase.
  • the pumping rate is gradually increased towards the normal pumping rate, step 111.
  • the pressure at the low-end of the droppipe 15 is continuously or regularly monitored by the electronic control unit 50 on the basis of the signal from the first pressure sensor 16, step 112.
  • step 113 the electronic control unit 50 sends a signal to the electronically controlled back pressure valve 22, step 114, to increase the restriction effect of the back pressure valve 22 to thereby cause an increase in the pressure upstream of the back pressure valve 22. Thereafter, the process moves to step 117 which will be described in detail further below.
  • step 115 the electronic control unit 50 determines if the measured pressure is above a second threshold, which is in an embodiment a pressure slightly above the above- mentioned target pressure. If the measured pressure is above the second threshold the process moves to step 116, where the electronic control unit 50 instructs the electronically controlled back pressure valve 22 to adjust its position to decrease its restriction effect to thereby decrease the pressure in the pipe 11 upstream of the back pressure valve 22.
  • a second threshold which is in an embodiment a pressure slightly above the above- mentioned target pressure.
  • step 117 the electronic control unit 50 checks if an end of bunkering signal is received (e.g. from an operator via the computer 55) or if one of the liquid sensors 17, 19 gives a negative signal indicating that the pipe 11 at the liquid sensor concerned is not filled with bunkering fuel. If no end of bunkering signal is received and both liquid sensors 17,19 are positive, the process moves again to step 112 and the above part of the process is repeated until the end of bunkering signal is received or until both the liquid sensors 17,19 is negative.
  • an end of bunkering signal is received (e.g. from an operator via the computer 55) or if one of the liquid sensors 17, 19 gives a negative signal indicating that the pipe 11 at the liquid sensor concerned is not filled with bunkering fuel. If no end of bunkering signal is received and both liquid sensors 17,19 are positive, the process moves again to step 112 and the above part of the process is repeated until the end of bunkering signal is received or until both the liquid sensors 17,19 is negative.
  • step 121 When the end of bunkering signal is received or when both of the liquid sensors 17,19 is negative the process moves to step 121 and enters the end phase of the bunker fuel transfer and measuring process. From the moment that both of the liquid sensors 17,19 is negative the electronic control unit stops measuring the transfer of bunker fuel, i.e. stops totalizing the flow rate. When the process moves to the end phase, the pumping rate is gradually decreased to stop. When pumping has stopped, the electronic control unit 50 instructs the back pressure valve 22 to move to its most closed position with the largest restriction effect e.g. 10% open so that gravity can pull any remaining bunker fuel in pipe 11 to the bunker fuel tank 8, step 122.
  • the electronic control unit 50 instructs the back pressure valve 22 to move to its most closed position with the largest restriction effect e.g. 10% open so that gravity can pull any remaining bunker fuel in pipe 11 to the bunker fuel tank 8, step 122.
  • the liquid sensors 17,19 will send the end signal to the electronic control unit 50, the manifold valve 13 can be closed air can be drawn in by air/gas separator 14, step 123 and the bunker fuel transfer and measuring process ends.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Measuring Volume Flow (AREA)

Abstract

L'invention concerne un système (10) de mesure de la quantité de combustible en soute, comme par exemple du mazout lourd, transférée au cours d'une activité de mise en soute. Le système (10) comprend un tuyau (11) configuré pour transporter du combustible de soute, un séparateur gaz/d'air (14) relié au tuyau (11) au niveau d'une première position, un débitmètre de Coriolis (20) configuré pour mesurer un débit du combustible de soute, le tuyau (11) comprenant une portion s'étendant vers le bas (15) disposée en aval de la première position et en amont du débitmètre de Coriolis (20), un clapet de retenue à commande électronique (22) dans le tuyau (11) à une position en aval du débitmètre de Coriolis (20), le clapet de retenue (22) ayant un effet de restriction réglable (22) sur n'importe quel fluide s'écoulant à travers le clapet de retenue (22), un capteur de pression (16) à une deuxième position en aval de la première position et en amont du clapet de retenue (22) et une unité de commande électronique (50) en communication électrique avec le débitmètre de Coriolis (20), avec le capteur de pression (16) et avec le clapet de retenue à commande électronique (22). L'unité de commande électronique (50) est configurée pour commander le clapet de retenue (22) en utilisant le signal en provenance du capteur de pression (16) afin de maintenir la pression détectée par le capteur de pression (16) proche d'une valeur de pression prédéterminée.
PCT/DK2015/050104 2014-04-28 2015-04-24 Système et procédé de mesure de la quantité de combustible fournie dans une opération de mise en soute WO2015165468A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP15786455.4A EP3137961A4 (fr) 2014-04-28 2015-04-24 Système et procédé de mesure de la quantité de combustible fournie dans une opération de mise en soute
KR1020167033337A KR101886844B1 (ko) 2014-04-28 2015-04-24 벙커링 오퍼레이션으로 제공된 연료의 양을 측정하는 시스템과 방법
SG11201609015SA SG11201609015SA (en) 2014-04-28 2015-04-24 A system and method for measuring the amount of fuel delivered in a bunkering operation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA201400233 2014-04-28
DKPA201400233 2014-04-28

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WO2017137347A1 (fr) * 2016-02-09 2017-08-17 Siemens Aktiengesellschaft Système de mesure permettant de surveiller le ravitaillement en combustible d'un grand bateau
WO2018121930A1 (fr) 2016-12-29 2018-07-05 Endress+Hauser Flowtec Ag Système de mesure vibronique pour la mesure d'un débit massique
WO2018121929A1 (fr) 2016-12-29 2018-07-05 Endress+Hauser Flowtec Ag Système de mesure vibronique pour la mesure d'un débit massique
DE102017106209A1 (de) 2016-12-29 2018-07-05 Endress+Hauser Flowtec Ag Vibronisches Meßsystem zum Messen einer Massendurchflußrate
CN108845609A (zh) * 2018-08-30 2018-11-20 北京海德利森科技有限公司 一种气体加注系统及方法
CN110094636A (zh) * 2019-05-16 2019-08-06 上海裕凡实业有限公司 一种装船或卸船流量计量系统
WO2019168513A1 (fr) * 2018-02-28 2019-09-06 Siemens Aktiengesellschaft Mesure d'écoulement dans un écoulement à phases multiples
EP4130689A1 (fr) * 2021-08-02 2023-02-08 ADP Clear Pte Ltd Système et procédé de surveillance et de vérification d'échange de combustibles de soute entre des navires
WO2023012563A1 (fr) * 2021-08-02 2023-02-09 Adp Clear Pte Ltd Système et procédé de surveillance et de vérification d'un échange de fioul de soute entre des véhicules marins

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KR102464569B1 (ko) 2020-10-27 2022-11-07 유승학 벙커유 트레이딩 비지니스를 위한 복합 플랫폼 시스템
KR102580616B1 (ko) * 2021-05-17 2023-09-20 한국해양과학기술원 이동식 다기능 벙커링 트럭

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Cited By (15)

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Publication number Priority date Publication date Assignee Title
KR20180108802A (ko) * 2016-02-09 2018-10-04 지멘스 악티엔게젤샤프트 대형 선박의 급유를 모니터링하기 위한 측정 어셈블리
KR102102632B1 (ko) 2016-02-09 2020-04-21 지멘스 악티엔게젤샤프트 대형 선박의 급유를 모니터링하기 위한 측정 어셈블리
CN108700445B (zh) * 2016-02-09 2020-02-04 西门子股份公司 用于监控大型船舶的油料添加的测量装置
WO2017137347A1 (fr) * 2016-02-09 2017-08-17 Siemens Aktiengesellschaft Système de mesure permettant de surveiller le ravitaillement en combustible d'un grand bateau
CN108700445A (zh) * 2016-02-09 2018-10-23 西门子股份公司 用于监控大型船舶的油料添加的测量装置
DE102017106209A1 (de) 2016-12-29 2018-07-05 Endress+Hauser Flowtec Ag Vibronisches Meßsystem zum Messen einer Massendurchflußrate
DE102017106211A1 (de) 2016-12-29 2018-07-05 Endress+Hauser Flowtec Ag Vibronisches Meßsystem zum Messen einer Massendurchflußrate
WO2018121929A1 (fr) 2016-12-29 2018-07-05 Endress+Hauser Flowtec Ag Système de mesure vibronique pour la mesure d'un débit massique
WO2018121930A1 (fr) 2016-12-29 2018-07-05 Endress+Hauser Flowtec Ag Système de mesure vibronique pour la mesure d'un débit massique
WO2019168513A1 (fr) * 2018-02-28 2019-09-06 Siemens Aktiengesellschaft Mesure d'écoulement dans un écoulement à phases multiples
CN108845609A (zh) * 2018-08-30 2018-11-20 北京海德利森科技有限公司 一种气体加注系统及方法
CN108845609B (zh) * 2018-08-30 2023-11-03 山西海德利森氢能科技有限公司 一种气体加注系统及方法
CN110094636A (zh) * 2019-05-16 2019-08-06 上海裕凡实业有限公司 一种装船或卸船流量计量系统
EP4130689A1 (fr) * 2021-08-02 2023-02-08 ADP Clear Pte Ltd Système et procédé de surveillance et de vérification d'échange de combustibles de soute entre des navires
WO2023012563A1 (fr) * 2021-08-02 2023-02-09 Adp Clear Pte Ltd Système et procédé de surveillance et de vérification d'un échange de fioul de soute entre des véhicules marins

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KR101886844B1 (ko) 2018-09-17
EP3137961A4 (fr) 2018-01-24
SG11201609015SA (en) 2016-11-29
EP3137961A1 (fr) 2017-03-08

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