EP0357513B1 - Kraftstoffabgabeeinrichtung mit einer Vorrichtung zur Kontrolle des Gasgehaltes - Google Patents

Kraftstoffabgabeeinrichtung mit einer Vorrichtung zur Kontrolle des Gasgehaltes Download PDF

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Publication number
EP0357513B1
EP0357513B1 EP89402382A EP89402382A EP0357513B1 EP 0357513 B1 EP0357513 B1 EP 0357513B1 EP 89402382 A EP89402382 A EP 89402382A EP 89402382 A EP89402382 A EP 89402382A EP 0357513 B1 EP0357513 B1 EP 0357513B1
Authority
EP
European Patent Office
Prior art keywords
control valve
servo
control
gas content
hydrocarbon
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89402382A
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English (en)
French (fr)
Other versions
EP0357513A1 (de
Inventor
Sylvain Janssen
Jacques Fournier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokheim Services France SAS
Original Assignee
Schlumberger SA
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
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Application filed by Schlumberger SA filed Critical Schlumberger SA
Priority to AT89402382T priority Critical patent/ATE83749T1/de
Publication of EP0357513A1 publication Critical patent/EP0357513A1/de
Application granted granted Critical
Publication of EP0357513B1 publication Critical patent/EP0357513B1/de
Anticipated expiration legal-status Critical
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Classifications

    • 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
    • B67D7/0476—Vapour recovery systems
    • B67D7/0478—Vapour recovery systems constructional features or components
    • B67D7/048—Vapour flow control means, e.g. valves, pumps
    • B67D7/0482—Vapour flow control means, e.g. valves, pumps using pumps driven at different flow rates
    • B67D7/0484—Liquid jet pumps, e.g. venturis
    • 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

Definitions

  • the invention relates to the field of retail distribution of hydrocarbons such as petrol and diesel. More precisely, it relates to controlling the distribution of the hydrocarbon as a function of the gas content of the latter.
  • a valve device is used, upstream of the oil dispensing lance, to possibly stop the flow of the hydrocarbon towards the end of the lance. This valve is calibrated so that it closes when the delivery pressure drops due to the presence of an excess of gas in the hydrocarbon.
  • This type of device comprises the following elements downstream of the hydrocarbon storage tank.
  • a pump extracts the hydrocarbon from the storage tank to send it to a degassing device.
  • the latter is generally of the vortex type.
  • the degassed hydrocarbon is taken from the periphery of the degassing device, tangentially thereto and is sent in the direction of the valve device.
  • This type of device using a control valve is not always effective in the event of excess gas. This excess is due to the fact that if the gas content at the inlet of the degassing device is too large, the latter is saturated. In addition, its operation can be random.
  • the object of the present invention is to remedy these drawbacks and to propose a control system for the valve device, making it possible to very significantly increase the reliability of the operation thereof and to precisely regulate the level of closure of the control valve. , depending on the gas content.
  • the main object of the invention is a hydrocarbon distributor comprising: A pump to extract the hydrocarbon from a storage tank; A vortex-type degassing device comprising an inlet pipe connected to said pump, an outlet pipe and an axial auxiliary outlet for withdrawing a fraction of the hydrocarbon enriched in gas, a lance for distributing the hydrocarbon ; A control valve mounted between said lance and the outlet of said degassing device; and A device for controlling said control valve as a function of the gas content in the hydrocarbon, comprising, a venturi system mounted on said auxiliary outlet and means for controlling the closing of said control valve as a function of pressure in said venturi system.
  • the means for controlling the control valve comprise: A control valve which is closed when the pressure at the neck of the venturi system is greater than a predetermined value and means for causing the closure of the control valve when said control valve is closed.
  • the device according to the invention mainly comprises a pump 11, a degassing device 13, a control valve 21 of a lance 50 and control means 19 of the control valve 21 as a function of the gas content of the hydrocarbon delivered by the degassing device 13.
  • a pump 11 brings the hydrocarbon, via an inlet pipe 12, to a degassing device 13.
  • This mainly consists of a body cylindrical 14, at a first end 15 from which the inlet pipe 12 tangentially terminates.
  • the discharged hydrocarbon arrives tangentially in the cylindrical body 14 in a vortex-type vortex movement.
  • an outlet pipe 16 is placed, in an identical manner to the inlet pipe 12, that is to say tangentially to the cylindrical body 14. In this way, by the movement of vortex, the hydrocarbon containing the least gas and being the heaviest, evolves at the periphery of the interior of the cylindrical body 14.
  • the outlet pipe 16 therefore withdraws, at the periphery of the main body, the practically degassed hydrocarbon.
  • An auxiliary outlet 24 of the degassing device 13 is placed at the second end 9 of the latter and in the center of the cylindrical body 14. In this way, the excessively gaseous hydrocarbon exits through this auxiliary outlet 24, which ends up inside a recovery tank 9 ′ for recycling the hydrocarbon.
  • control means 19 are installed between the degassing device 13 and the control valve 21 to better take into account the pressure of the hydrocarbon, therefore the gas content in this one. These control means 19 will be described later in the description.
  • the outlet pipe 16 leads to the control valve 21 mainly comprising a control body 20, inside which is placed a control valve 22 which comprises a first and a second face.
  • the latter is slidably mounted inside the body 20 which can thus take at least two longitudinal positions, the first closing off by its first face the connection between the inlet 17 of the outlet pipe 16 and the pipe 18 of the lance 50.
  • the second position of the control valve 22 leaves open the connection between the inlet 17 of the outlet pipe 16 and the pipe 18 of the lance 50.
  • a first spring 44 bearing on the bottom of the control body 20, maintains the control valve 22 in the first position.
  • the control means of the control device mainly comprise a venturi 25 and means for controlling the closing of the control valve 22 as a function of the pressure in the neck of the venturi 25.
  • the latter comprise a servo or exhaust pipe 36 and a servo valve consisting of a servo body 33, inside which is a valve servo 32.
  • the venturi 25 is placed at the auxiliary outlet 24 of the degassing device 13, its outlet 26 discharging into the recovery tank 9 ′.
  • a pipe 28 is formed in the venturi 25, perpendicular thereto and opening into the neck of the venturi 25.
  • the control body 33 is placed opposite the outlet of this pipe 28 from the venturi 25, an internal chamber 30 of the control body 33 being in communication with the neck of the venturi 25.
  • An orifice 42 connects the internal chamber 30 with the outside.
  • the control line 36 connects the control volume or control chamber 38 of the control valve 21 with the control body 33.
  • the control valve 32 is slidably placed inside the control body 33, so as to be able to obstruct, in a first position, the control line 36 opening into the chamber 30 of the control body 33. In a second position, this valve 32 leaves the control line 36 and the chamber 30 in communication
  • This servo valve 32 is slidably mounted inside the servo body 33 in a sealed manner.
  • a second spring 35 is placed behind the control valve 32 to allow the latter to ensure complete closure of the control line 36 by pressing against a seat 34 of the control body 33.
  • a counting device can be placed on this outlet lance 18.
  • the operation of the control device according to the invention is as follows.
  • the density of the fluid withdrawn by the auxiliary outlet 24 and the venturi 25 is high.
  • the vacuum at the neck of the venturi 25 and the pipe 28 of the servo body 33 is therefore significant.
  • the consequence of this depression is to keep the servo valve 32 in the open position, that is to say in a position leaving in communication the servo line 36 and the orifice 42 of the servo body 33.
  • the fluid entering via the outlet pipe 16 into the control valve 21 also partly penetrates into the control volume 38. It can therefore also flow through the servo pipe 36 towards the chamber 30 of the servo body 33 , from which it leaves through the orifice 42 communicating with the outside.
  • the pressure in the control volume 38 of the control valve 21 is therefore reduced and practically equal to atmospheric pressure. Consequently, the control valve 22 remains in the open position, and allows the flow of hydrocarbon in the direction of the lance 50.
  • the gas content in the hydrocarbon is high, there is a large difference between the densities of the fluid evolving at the periphery of the cylindrical body 14 of the degassing device 13 and the fluid evolving at the center of the cylindrical body 14, the latter being the lowest.
  • the fluid flowing in the venturi 25 therefore has a lower density, the vacuum generated by this venturi 25 is reduced.
  • the pressure in the pipe 28 of the venturi 25 therefore increases.
  • the second spring 35 of the servo valve 32 being calculated to react above a determined vacuum value, corresponding to a rate of gas in the hydrocarbon, the servo valve 32 is forced against the seat 34 of the body servo 33. It therefore blocks the passage of the fluid from the servo line 36 to the orifice 42 communicating with the outside.
  • control valve 32 being closed, the pressure in the control volume 38 gradually becomes equal to the pressure in the line 16, due to the leaks from the control valve 22 and from the conduit 40 in the control valve 22.
  • the pressure therefore becomes substantially equal on either side of the control valve 22 which closes under the effect of the first spring 44.
  • the lance 50 is no longer supplied.
  • the reopening of the control valve 22 can only occur if the servo valve 32 opens, that is to say if the gas content falls below the determined gas rate.
  • the control valve 32 opens, the control volume 38, placed in communication with the orifice 42, is gradually brought to atmospheric pressure.
  • the pressure in the outlet pipe 16, which is much higher than atmospheric pressure acts on the periphery 22a of the first active face of the control valve 22, which is sufficient to compress the first spring 44 and cause the opening of the control valve 22.
  • the gas content is measured in line 16. In fact, the presence of the excess gas lowers the pressure of the hydrocarbon-gas mixture, which causes the control valve to close. 22.
  • the gas content is determined at the auxiliary outlet 24 of the degassing device 13. This gas content of the fluid at the auxiliary outlet 24 is therefore representative of the gas content in the outlet pipe 16, but with a very significant amplification of this content.
  • the auxiliary output 24 being axial, it takes fluid from the area of the vortex degassing device where it is most enriched in gas.
  • the springs 44 and 35 can be calculated in advance, so that the control valve 21 and the servo means can react to determined pressure values corresponding to a determined rate of gas in the hydrocarbon, the device according to the invention can be applied to different hydrocarbon distribution installations, and under different conditions of use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Fluid Pressure (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Claims (4)

  1. Kraftstoffabgabeeinrichtung mit einer Pumpe (11) zum Pumpen des Kraftstoffs aus einem Lagertank (10), dadurch gekennzeichnet, daß sie folgende Teile umfaßt:
    - eine Wirbel-Gasabscheidevorrichtung (13), die eine mit der besagten Pumpe (11) verbundene Einlaßleitung (12), eine Auslaßleitung (16) und einen axialen Hilfsausgang (24) zur Entnahme eines Teils des mit Gas angereicherten Kraftstoffes aufweist;
    - einen Kraftstoffabgabeschlauch (50);
    - ein Steuerventil (21), das zwischen den Abgabeschlauch (50) und die Austrittsöffnung der besagten Gasabscheidevorrichtung (13) montiert wird; sowie
    - Vorrichtungen (19) zur Regelung des besagten Steuerventils (21) je nach Gasgehalt des Kraftstoffs, die ein Wirbelsystem (25) aufweisen, das auf den besagten Hilfsausgang (24) montiert ist, sowie Vorrichtungen (25, 28, 30, 32, 33, 36, 42), die das Schließen des besagten Steuerventils (21) je nach dem im Wirbelsystem (50) herrschenden Druck bewirken.
  2. Kraftstoffabgabeeinrichtung gemäß Anspruch 1, dadurch gekennzeichnet, daß die genannten Regelvorrichtungen (19) für das genannte Steuerventil (21) über ein Regelventil (33) verfügen, das geschlossen wird, wenn der Druck im Hals des Wirbelsystems einen vorher festgelegten Wert übersteigt, sowie Betätigungsvorrichtungen (25, 28, 30, 32, 36, 42) zum Schließen des Steuerventils (21), wenn das besagte Regelventil (33) geschlossen ist.
  3. Kraftstoffabgabeeinrichtung gemäß Anspruch 2, dadurch gekennzeichnet, daß das besagte Steuerventil (21) aus einem Sitz und einer beweglichen Betätigungsklappe (22) besteht, um den Kraftstofffluß zwischen der besagten Gasabscheidevorrichtung (13) und dem besagten Schlauch (50) zu unterbrechen, wenn eine erste Seite der Betätigungsklappe (22) gegen den besagten Sitz drückt, und bei der die genannten Betätigungsvorrichtungen für das besagte Betätigungsventil außerdem eine Steuerkammer (38) umfassen, die von einer zweiten Seite der besagten Betätigungsklappe (22) begrenzt wird.
  4. Kraftstoffabgabeeinrichtung gemäß Anspruch 3, dadurch gekennzeichnet, daß das besagte Regelventil (33) mit der besagten Steuerkammer (38) verbunden ist und diese mit einer Auslaßleitung (36) verbindet, wenn das besagte Regelventil (33) geöffnet ist, und diese Verbindung unterbricht, wenn das besagte Regelventil geschlossen ist.
EP89402382A 1988-09-02 1989-08-31 Kraftstoffabgabeeinrichtung mit einer Vorrichtung zur Kontrolle des Gasgehaltes Expired - Lifetime EP0357513B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89402382T ATE83749T1 (de) 1988-09-02 1989-08-31 Kraftstoffabgabeeinrichtung mit einer vorrichtung zur kontrolle des gasgehaltes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8811529 1988-09-02
FR8811529A FR2636056B1 (fr) 1988-09-02 1988-09-02 Dispositif de commande automatique d'une lance a hydrocarbure en fonction de la teneur en gaz de l'hydrocarbure

Publications (2)

Publication Number Publication Date
EP0357513A1 EP0357513A1 (de) 1990-03-07
EP0357513B1 true EP0357513B1 (de) 1992-12-23

Family

ID=9369678

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89402382A Expired - Lifetime EP0357513B1 (de) 1988-09-02 1989-08-31 Kraftstoffabgabeeinrichtung mit einer Vorrichtung zur Kontrolle des Gasgehaltes

Country Status (6)

Country Link
US (1) US4978374A (de)
EP (1) EP0357513B1 (de)
AT (1) ATE83749T1 (de)
DE (1) DE68904015T2 (de)
ES (1) ES2038429T3 (de)
FR (1) FR2636056B1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE90070T1 (de) * 1990-09-04 1993-06-15 Scheidt & Bachmann Gmbh Vorrichtung zur regelung der zufuhr von fluessigen kraftstoffen zu einem mengenmessgeraet.
SE467460B (sv) * 1990-12-07 1992-07-20 Wennstroem Ab F Anordning foer avskiljning av gas fraan ett vaetskefloede
FR2674932B1 (fr) * 1991-04-04 1993-07-30 Schlumberger Ind Sa Clapet a chambre de commande a fermeture controlee.
AU650123B2 (en) * 1991-04-26 1994-06-09 Gilbarco Aust Limited Air/vapour separation device
US5501246A (en) * 1991-04-26 1996-03-26 Gilbarco Limited Air/vapour separation device
US5363988A (en) * 1991-09-13 1994-11-15 Gilbarco Limited Fuel dispenser controlled in dependence on an electrical signal from a gas detector of the dispenser
GB2259497B (en) * 1991-09-13 1994-06-22 Gilbarco Ltd A fuel dispenser
FR2730484B1 (fr) * 1995-02-15 1997-05-09 Schlumberger Ind Sa Systeme de degazage pour un distributeur d'hydrocarbures
US5884809A (en) * 1997-05-05 1999-03-23 Delaware Capital Formation, Inc. Air separating fuel dispensing system
US6290760B1 (en) * 1999-04-30 2001-09-18 Tokheim Corporation Air separator system
US6179163B1 (en) * 1999-06-11 2001-01-30 Delaware Capital Formation, Inc. System and method for evaluating the presence of air in a liquid-state fuel stream
FR2823191B1 (fr) * 2001-04-06 2003-09-05 Tokheim Services France Procede de controle de la teneur en hydrocarbures d'une vapeur circulant dans une installation equipee d'un systeme d'aspiration de vapeur
NO319450B1 (no) * 2002-06-21 2005-08-15 Statoil Asa Styresystem for en degasser
NO319645B1 (no) * 2003-03-12 2005-09-05 Statoil Asa Styresystem og sammenstilling for automatisert stromningsstabilisering, forseparasjon av gass fra vaeske og forhindring av gassgjennomslag for en fluidstrom fra en rorledning for hvilken vaeske er den dominerende fase
NO318771B1 (no) * 2003-03-12 2005-05-02 Statoil Asa Degasser med reguleringsinnretninger
EP1862429A1 (de) * 2006-05-30 2007-12-05 Dresser Wayne Ab Luftabscheider für eine Kraftstoffzapfanlage
FR2919855B1 (fr) * 2007-08-08 2009-10-02 Tokheim Holding Bv Dispositif de degazage antimousse pour un appareil de distribution de carburant en particulier de biocarburant
US9879663B2 (en) * 2013-03-01 2018-01-30 Advanced Cooling Technologies, Inc. Multi-phase pump system and method of pumping a two-phase fluid stream
FR3078063B1 (fr) 2018-02-16 2020-02-07 Dover Fueling Solutions Uk Limited Dispositif de degazage pour un ensemble de pompage de carburant
SE545426C2 (en) 2021-09-16 2023-09-05 Dover Fueling Solutions Uk Ltd A pumping system with an equalizer tube

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB490515A (en) * 1936-06-15 1938-08-15 Wayne Co Improvements in or relating to pumping devices particularly for use in connection with liquid dispensing apparatus
FR844209A (fr) * 1938-03-31 1939-07-20 Perfectionnements aux installations de compteurs volumétriques de liquides
US2952329A (en) * 1957-10-25 1960-09-13 Richard G Cunningham Device for de-aerating liquids
DE1201076B (de) * 1961-03-18 1965-09-16 Scheidt & Bachmann Gmbh Gasmessverhueter fuer Tankanlagen zur Ausgabe fluessiger Treibstoffe
US3715863A (en) * 1971-03-26 1973-02-13 Bennett Pump Inc Compact pump/air separator apparatus
GB1412139A (en) * 1971-11-17 1975-10-29 Gilbarco Aust Ltd Air and/or vapour separation device
US3905405A (en) * 1973-09-25 1975-09-16 Weil Mclain Company Inc Gasoline dispensing and vapor recovery system
US4799940A (en) * 1985-12-05 1989-01-24 Gilbarco, Inc. Centrifugal system with pump for separating air from fuel

Also Published As

Publication number Publication date
ATE83749T1 (de) 1993-01-15
FR2636056B1 (fr) 1991-05-24
DE68904015D1 (de) 1993-02-04
ES2038429T3 (es) 1993-07-16
US4978374A (en) 1990-12-18
DE68904015T2 (de) 1993-05-19
FR2636056A1 (fr) 1990-03-09
EP0357513A1 (de) 1990-03-07

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