EP0327518B1 - Verfahren zum Rückgewinnen von Kraftstoffdämpfen - Google Patents

Verfahren zum Rückgewinnen von Kraftstoffdämpfen Download PDF

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Publication number
EP0327518B1
EP0327518B1 EP89850024A EP89850024A EP0327518B1 EP 0327518 B1 EP0327518 B1 EP 0327518B1 EP 89850024 A EP89850024 A EP 89850024A EP 89850024 A EP89850024 A EP 89850024A EP 0327518 B1 EP0327518 B1 EP 0327518B1
Authority
EP
European Patent Office
Prior art keywords
filler pipe
petrol
tank
pipe
vapour
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
EP89850024A
Other languages
English (en)
French (fr)
Other versions
EP0327518A1 (de
Inventor
Lennart Hellring
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT8989850024T priority Critical patent/ATE104647T1/de
Publication of EP0327518A1 publication Critical patent/EP0327518A1/de
Application granted granted Critical
Publication of EP0327518B1 publication Critical patent/EP0327518B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the present invention relates to a method in accordance with the preamble of claim 1.
  • Such petrol tanks are generally sunk or embedded in the distribution forecourt of the petrol stations and are fitted with a filler pipe placed in a well and provided with a filler thread attachment, the well being covered with some suitable type of covering material.
  • the filler pipe often extends through a manhole.
  • the task forming the basis of the present invention is to obviate or at least reduce the drawbacks and inconveniences inherent in the above-mentioned prior art method and to realise a new method of the above mentioned art.
  • the method according to the present invention makes possible gas recycling from existing petrol tanks for, for example free-fall or chute filling, in an extremely rapid and economical manner. Any possible aversion to modification of existing petrol tanks for freefall filling, for recycling of petrol vapours therefrom, will obviously be eliminated entirely or at least to a considerable degree as a result of the method according to the present invention, since both labour input and costs will be minimised on employment of the method according to the present invention.
  • fig 1 schematically illustrates a portion of a petol tank with an arrangement according to the present invention.
  • Fig 2 schematically illustrates a view of an apparatus for carrying out the method according to the present invention.
  • the method according to the present invention is applicable to a per se conventional petrol tank 1 with petrol 2 and petrol vapour 3 and a filler pipe 5 extending through a manhole 4.
  • the filler pipe 5 with filling thread attachment (not shown) is generally located in a well whose diameter is considerably less than the diameter of the manhole 4.
  • the filler pipe 5 is cut a distance above the manhole 4 and a distance below ground level.
  • the end of the filler pipe 5 is fitted with a mounting flange 6.
  • a number of holes 7 are provided in the wall of the filler pipe 5 below the manhole 4, through which holes the petrol vapour 3 can flow into the filler pipe 5.
  • a new filler pipe 8 is inserted down into the filler pipe 5, the new filler pipe being provided with a per se conventional filling thread attachment 9.
  • a petrol vapour recycling unit 10 is applied on the new filler pipe 8, this unit optionally being of per se conventional type and having a flange 11 corresponding to the flange 6 for sealing connection with the flange 6.
  • the petrol vapour recycling unit 10 is provided with a thread 12 for connection of a suitable hose which may extend to the road tanker or a similar unit for taking care of the petrol vapour 3 which, during filling of petrol 2 into the petrol tank 1, flows through the holes 7 into the space between the old filler pipe and the new filler pipe 8 to the petrol vapour recycling unit 10 and further thence to the road tanker or other receptacle means.
  • the end of the filler pipe 5 can be threaded after being cut, whereafter the recycling unit 10 is screwed in place to sealing connection.
  • the tool schematically illustrated in fig 2 may be employed.
  • a bracket 20 is disposed for a number of guide tubes 21 in which sounding tubes or probes 22 are insertable.
  • the upper end of the sounding tubes 22 is coupled to a water source (not shown) by the intermediary of an openable and closable valve 23 and a suitable hose 24.
  • the tank 1 or the manhole 4 it can be assumed with a high degree of probability that the tank 1 or the manhole 4 has been found, whereupon the upper sounding tube ends can be used as a reference mark for placing a hole making device 26 disposed at the end of a pipe 25 lowered into the earlier filler pipe 5 at a suitable level for the holes 7 beneath the manhole 4 or the tank wall.
  • This device comprises two interconnected piston and cylinder assemblies 27 and 28 which are connected to a source of hydraulic pressure by the intermediary of a hose and an openable and closable valve 29.
  • the piston of the one assembly 27 is sercured to the wall of the pipe 25 so that its cylinder and the other piston and cylinder assembly 28 will be movable in a radial direction for urging the tip 30 of the device 26 against the inside of the earlier filler pipe 5, whereupon the tip, which is secured on the piston of the second assembly 28, is pressed through the pipe wall for creating one of the holes 7.
  • the valve 29 is closed for release of pressure so that the parts can return to their starting position in a conventional way, e g by springs or pressure in the opposite direction and the pipe 25 can be revolved though a number of degrees for realising a suitable distance between the holes 7.
  • the pipe 25 may thereafter be lowered further one or more times for providing several rows of holes 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Pipe Accessories (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Processing Of Solid Wastes (AREA)

Claims (2)

  1. Verfahren zum Versehen eines vorhandenen, ein inneres und nach unten verlaufendes Einfüllrohr (5) aufweisenden Benzintanks (1) mit einem Dampfrückgewinnungssystem zum Rezyklieren von Benzindämpfen, die während der Befüllung in eine Aufnahmeeinrichtung oder zurück in das Transportfahrzeug, von dem aus der Tank befüllt wird, aus diesem ausströmen, dadurch gekennzeichnet, daß Löcher (7) in dem Einfüllrohr (5) von dessen Innenseite aus geschaffen werden, um mit dem Raum über dem Tank (1) zu kommunizieren, wo sich die Benzindämpfe sammeln; dadurch, daß ein zusätzliches Rohr mit einem Außendurchmesser, der kleiner ist als der Innendurchmesser des Einfüllrohres (5), zur Bildung eines neuen Einfüllrohrs (8) innerhalb des früheren Einfüllrohrs (5) eingesetzt wird; und dadurch, daß eine Benzindampf-Rezykliervorrichtung (10) an dem früheren Einfüllrohr (5) und dem neuen Einfüllrohr (8) montiert wird, so daß Benzindampf während des Befüllens des Benzintanks (1) von dort durch die Löcher (7) in und durch den Raum zwischen dem früheren Einfüllrohr (5) und dem neuen Einfüllrohr (8) in die Benzindampf-Rezykliervorrichtung (10) fließt.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das ursprüngliche Einfüllrohr (5) in einem Abstand unterhalb des Bodens abgeschnitten wird, wenn der Benzintank (1) in den Boden eingebettet oder versenkt wird, und mit einer Benzindampf-Rezykliervorrichtung (10) versehen ist.
EP89850024A 1988-02-02 1989-01-26 Verfahren zum Rückgewinnen von Kraftstoffdämpfen Expired - Lifetime EP0327518B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT8989850024T ATE104647T1 (de) 1988-02-02 1989-01-26 Verfahren zum rueckgewinnen von kraftstoffdaempfen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8800317 1988-02-02
SE8800317A SE466013B (sv) 1988-02-02 1988-02-02 Saett att vid paafyllning av en bensincistern fraan en tankbil aaterfoera bensinaangor

Publications (2)

Publication Number Publication Date
EP0327518A1 EP0327518A1 (de) 1989-08-09
EP0327518B1 true EP0327518B1 (de) 1994-04-20

Family

ID=20371233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89850024A Expired - Lifetime EP0327518B1 (de) 1988-02-02 1989-01-26 Verfahren zum Rückgewinnen von Kraftstoffdämpfen

Country Status (4)

Country Link
EP (1) EP0327518B1 (de)
AT (1) ATE104647T1 (de)
DE (1) DE68914695D1 (de)
SE (1) SE466013B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2301347B (en) * 1995-05-31 1997-04-09 Psl Delivery venting
US6138707A (en) * 1998-04-21 2000-10-31 W & J Risbridger Limited Fuel storage tanks
US6062274A (en) * 1999-03-15 2000-05-16 Universal Valve Co., Inc. Vapor reduction in filling fuel storage tanks

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016928A (en) * 1959-01-19 1962-01-16 Brandt Robert Jay Device for extracting fumes from liquid fuel storage containers
US4009739A (en) * 1975-09-02 1977-03-01 Weatherford Danny J Gasoline and vapor return hose system for delivery truck
US4074734A (en) * 1976-07-20 1978-02-21 Union Oil Company Of California Liquid delivery system

Also Published As

Publication number Publication date
DE68914695D1 (de) 1994-05-26
EP0327518A1 (de) 1989-08-09
SE8800317L (sv) 1989-08-03
SE466013B (sv) 1991-12-02
SE8800317D0 (sv) 1988-02-02
ATE104647T1 (de) 1994-05-15

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