EP0332539B1 - Verfahren und Vorrichtung zur Abgabe abgemessener Mengen von Flüssigkeit unter Schwerkraft - Google Patents

Verfahren und Vorrichtung zur Abgabe abgemessener Mengen von Flüssigkeit unter Schwerkraft Download PDF

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Publication number
EP0332539B1
EP0332539B1 EP19890400672 EP89400672A EP0332539B1 EP 0332539 B1 EP0332539 B1 EP 0332539B1 EP 19890400672 EP19890400672 EP 19890400672 EP 89400672 A EP89400672 A EP 89400672A EP 0332539 B1 EP0332539 B1 EP 0332539B1
Authority
EP
European Patent Office
Prior art keywords
level
valve
tank
liquid product
sensor
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
EP19890400672
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English (en)
French (fr)
Other versions
EP0332539A1 (de
Inventor
Gérard Jurine
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.)
ALMA INGENIERIE
Original Assignee
Total Raffinage Distribution SA
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Filing date
Publication date
Application filed by Total Raffinage Distribution SA filed Critical Total Raffinage Distribution SA
Publication of EP0332539A1 publication Critical patent/EP0332539A1/de
Application granted granted 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
    • B67D7/06—Details or accessories
    • B67D7/08—Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred
    • B67D7/28—Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred with automatic means for reducing or intermittently interrupting flow before completion of delivery, e.g. to produce dribble feed
    • 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 invention relates to a method and a device fitted to a distributing tank and intended to distribute measured volumes of liquid product to a receiving tank. It applies more particularly, but not exclusively, to the refueling of service stations by tankers transporting liquid fuel.
  • Distribution devices of this type known up to now generally include on the supply pipe, a meter in the form of a turbine for measuring the quantity of liquid product flowing from the supply tank and a check valve. bottom intended to cut off the supply as soon as the desired quantity of liquid product has passed.
  • the counter includes means for displaying the quantity of liquid product to be dispensed, these means automatically causing the bottom valve to close as soon as said quantity has been reached.
  • the object of the present invention is to remedy these drawbacks and, for this purpose, it relates to a method of gravity distribution of a measured volume of liquid product from a supply tank, according to claim 1.
  • the counter can thus continue to measure with great precision the quantity of liquid product, until the moment when this arrives at the level of the second probe, that is to say until the moment when the compartment is completely empty.
  • the liquid product then fills only the retention basin.
  • the counting is then interrupted to avoid the formation of a vortex during the emptying of the retention basin.
  • the liquid product being assembled in the retention basins, emptying may be continued until it is exhausted, whatever the inclination of the tank.
  • the indication of the counter is increased by an amount corresponding to the volume of the retention basin and of the supply piping.
  • the invention also relates to a device for the gravity distribution of a measured volume of a liquid product from a tank, optionally divided into compartments, according to claim 2.
  • patent EP-AO 035 217 we knows a device intended to avoid errors on the measurement of the quantity of liquid product flowing in a tank, due to the simultaneous passage of uncontrolled quantities of gas mixture, said device comprising two level detection probes. However, these probes are located outside the tank. In addition, it does not have a retention tank, so that if one wants to empty the tank until the liquid product is exhausted, one is forced to place the tank in a strictly horizontal position. The invention overcomes this constraint.
  • the semi-trailer tank 10 shown in FIG. 1 is divided, in a manner known per se, by vertical partitions 12 which define independent compartments between them 14. As is customary, the tank has a slight inclination towards the soil from front to back, on the order of 2%.
  • each compartment comprises at the foot of the associated partition, located on the rear side, a retention basin 16 of cylindrical shape and of small volume compared to that of the compartment.
  • the bottom 18 of the retention bowl has a discharge orifice, not visible in FIG. 2, controlled by a bottom valve 20 of a type known per se, the valve of which can occupy an open position to let a maximum flow pass, a semi-open position for the passage of a reduced flow and a closed position.
  • a turbine 22 and its tranquilizer 24 intended to count the fuel which flows out of the tank.
  • the depth of the bowl is calculated so that this condition is achieved when the probe 30 is at the same level as the edge of the bowl or slightly below this level.
  • This probe is capable of controlling the stop of the meter when the fuel level in the retention bowl reaches its height.
  • a box which gathers near the valves, the interfaces of the probes, pneumatic interfaces, and a dialog box with the electronics for managing the measuring systems.
  • each loaded compartment is unloaded for example in fractions of 1000 liters or a submultiple of this volume.
  • the operator displays the volume of fuel that the chosen compartment must distribute, which automatically brings the valve to its open position.
  • the displayed quantity of fuel then flows by gravity, after which the valve closes.
  • the compartment 14 considered generally contains a quantity of fuel less than that which it is proposed to deliver.
  • the bottom valve At the start of dispensing, the bottom valve is in the fully open position, so that the fuel flows with a large flow rate.
  • the fuel level in the compartment reaches the height of the probe 26, the latter causes the bottom valve to move to its semi-open position. The flow is therefore reduced before a vortex has had time to form.
  • the flow continues at a reduced flow rate until the fuel level has reached the probe 32. This then commands the stop of the counting.
  • the compartment is then empty, only a volume, well known, of fuel still filling the retention bowl 16 and the piping 23. This volume is distributed at a flat rate to the quantity indicated on the meter.
  • the device according to the invention therefore makes it possible to completely empty the compartments of a tank, until the fuel is used up, at a speed which corresponds to the maximum accuracy of the turbine. Distribution is rapid since most of the compartment's volume is supplied at high speed. Furthermore, the emptying being complete at the last delivery, any appreciable pollution is avoided with the next load. It will also be noted that because the unloading takes place by gravity, the pressure drop in the flow is practically negligible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Measuring Volume Flow (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Devices For Dispensing Beverages (AREA)

Claims (5)

  1. Verfahren zur Abgabe eines abgemessenen Flüssigkeitsvolumens aus einem Speisetank (10) unter der Wirkung der Schwerkraft, welcher innen in Abteile (14) unterteilt sein kann, die jeweils mit einem Bodenventil (20) und Mitteln (22) zum Zählen der ausfließenden Flüssigkeitsmenge versehen sind, wobei
       das Bodenventil (20) geöffnet wird, um die Zählmittel (22) einzuschalten,
       das Näherkommen des Tankendes mittels eines ersten Sensors (26) festgestellt wird, welcher automatisch das teilweise Schließen des Bodenventils (20) bewirkt, um den Ausflußdurchsatz zu verringern und deshalb das Auftreten eines Wirbels zu verzögern,
       das Ankommen des Flüssigkeitsniveaus auf dem Niveau des Tankbodens mittels eines in einer im Abteilboden ausgebildeten Rückhaltemulde (16) angeordneten zweiten Sensors (32) festgestellt wird, was das automatische Stoppen des Zählens bewirkt, und
       ein pauschales Flüssigkeitsvolumen ausfließen gelassen wird, welches dem Volumen der Rückhaltemulde (16) und der Speiserohrleitung entspricht.
  2. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1, welche je Tankabteil (14)
       ein Bodenventil (20), das eine Öffnungsstellung, eine Halböffnungsstellung und eine Schließstellung einnehmen kann,
       zwei Sensoren (26, 32) zum Erfassen unterschiedlicher Flüssigkeitsniveaus bei der Entleerung und zum Umschalten des Ventils zwischen der Halböffnungsstellung und der Schließstellung dann, wenn die freie Flüssigkeitsoberfläche ihr jeweiliges Niveau erreicht,
       eine an die Auslaßöffnung des Ventils angeschlossene Abgaberohrleitung (23) und
       einen Zähler (22) zur Messung der aus dem Tank ausgeflossenen Flüssigkeitsmenge
       aufweist, dadurch gekennzeichnet, daß im Boden jedes Tankabteils (14) eine Rückhaltemulde (16) geringen Volumens mit einer vom zugeordneten Ventil (20) überwachten Ausflußöffnung ausgebildet ist,
       wobei der eine Sensor (26) im Abteil geringfügig oberhalb desjenigen Niveaus angeordnet ist, wo normalerweise ein Wirbel auftreten würde, wenn das Ventil in Öffnungsstellung bliebe, so daß dieser Sensor das Umstellen des Ventils in seine Halböffnungsstellung veranlaßt, sobald die freie Flüssigkeitsoberfläche seine Höhe erreicht,
       und daß der andere Sensor (32) in der Rückhaltemulde selbst unterhalb des Niveaus der Muldenoberkante angeordnet und in der Lage ist, das Umstellen des Ventils in seine Schließstellung zu veranlassen, sobald die freie Flüssigkeitsoberfläche sein Niveau erreicht.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der erste Sensor (26) am Ende eines vertikalen Supportes (28) angeordnet ist, welcher mit seinem unteren Ende am Boden der Rückhalbemulde (16) befestigt ist.
  4. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der zweite Sensor (32) am Ende eines vertikalen Supportes (30) angeordnet ist, welcher mit seinem unteren Ende am Boden der Rückhaltemulde befestigt ist.
  5. Vorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Sensoren (26, 32) durch ein Rohr (34) geschützt sind, dessen Achse vertikal verläuft und das am Boden der Rückhaltemulde (16) befestigt, an seinem oberen Ende offen, höher als der Support (28) und in seinem unteren Bereich mit mehreren Löchern (36) perforiert ist, welche dasselbe Flüssigkeitsniveau außerhalb und innerhalb des Rohres ermöglichen.
EP19890400672 1988-03-11 1989-03-10 Verfahren und Vorrichtung zur Abgabe abgemessener Mengen von Flüssigkeit unter Schwerkraft Expired - Lifetime EP0332539B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8803203 1988-03-11
FR8803203A FR2628407B1 (fr) 1988-03-11 1988-03-11 Procede et dispositif pour la distribution gravitaire d'un volume mesure de produit liquide

Publications (2)

Publication Number Publication Date
EP0332539A1 EP0332539A1 (de) 1989-09-13
EP0332539B1 true EP0332539B1 (de) 1992-10-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890400672 Expired - Lifetime EP0332539B1 (de) 1988-03-11 1989-03-10 Verfahren und Vorrichtung zur Abgabe abgemessener Mengen von Flüssigkeit unter Schwerkraft

Country Status (4)

Country Link
EP (1) EP0332539B1 (de)
DE (1) DE68903232T2 (de)
ES (1) ES2035592T3 (de)
FR (1) FR2628407B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5713486A (en) * 1996-05-28 1998-02-03 Mbt Holding Ag Quick-charge and-discharge dispensing system for liquid indirectly weighed in a dispenser

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE7307889L (de) * 1973-06-05 1974-12-06 Ljungmans Verkstader Ab
BE835668A (fr) * 1975-11-18 1976-05-18 Appareil portable de remplissage automatique de recipients
DE3007688C2 (de) * 1980-02-29 1985-11-07 Alfons Haar, Maschinenbau GmbH & Co KG, 2000 Hamburg Vorrichtung zur Verhinderung des Mitmessens gasförmiger Beimengungen bei der Abgabe von Flüssigkeiten

Also Published As

Publication number Publication date
EP0332539A1 (de) 1989-09-13
DE68903232T2 (de) 1993-05-06
FR2628407A1 (fr) 1989-09-15
ES2035592T3 (es) 1993-04-16
DE68903232D1 (de) 1992-11-26
FR2628407B1 (fr) 1990-09-07

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