FR2460888A1 - PROCESS FOR FILLING A PLASTIC SHEET BAG IN A PRESSURE TANK WITH A BEVERAGE CONTAINING CARBONIC ACID, IN PARTICULAR BEER - Google Patents

Abstract

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

Description

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  Method for filling a plastic sheet bag in a pressure tank with a drink containing acid

  carbonic acid, in particular beer.

  The invention relates to a method for filling a plastic sheet bag in a pressure tank

  with a beverage containing carbonic acid, in particular

  to bind beer, the pressure tank being provided with two opposite ports, one of which is closed with a tap

  for the filling and filling beverage and the

  with a valve for pressurized gas for

  troduction of pressurized gas between the tank wall and the plastic foil bag, according to which before the fitting of the valve parts the plastic foil bag is first introduced in the folded state through a orifice in the pressure tank and then after the installation of the filling valve its open end is placed in communication, in a pressure-tight manner, with this valve; after which the gas

  under pressure is brought to the pressurized gas valve

  and then the drink to the tap of the drink.

  A process of this type is described in German application DT-OS 20 50 376. The pressure tank, used

  in the known process, has roughly the shape of a barrel.

  To introduce a plastic sheet bag, the pressure reservoir is placed in a horizontal position, so that the two orifices oppose laterally to each other. The plastic sheet bag is introduced into the interior space of the pressure tank in the assembled state and in particular folded through the orifice to be closed with the tap of the drink. The filling of the plastic sheet bag takes place from

  even in the horizontal position of the pressure tank.

  The plastic bag must unfold successively.

  The difficulty with a process of this kind is to prevent

  expensive, when filling the drink, that creases remain

  at the places in the plastic bag that are already covered by the drink. Due to the weight of the liquid, these

  folds can not be removed, when continuing with the

  pleating, without the risk of the filled bag bursting.

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  It is known that a pressure vessel of a given wall thickness can withstand a much higher pressure if it has a spherical shape. In the case of a spherical tank however, a filling free of wrinkles is particularly difficult.

  The invention aims to solve the problem of filling

  free of folds of a plastic sheet bag in a tank

  pressure which can also have a spherical shape.

  This problem is solved, according to the invention, by the fact that the plastic sheet bag is introduced

  with a hose-shaped envelope in the tank

  pressure, which remains in the reservoir of pressure.

  when filling the plastic bag.

  It should be noted here that the use of a

  hose-shaped lopper for a plastic foil bag

  the principle, but only to protect

  handle the plastic bag against damage

  until it is introduced into the reservoir of

  if we. The protective envelope is removed immediately before the bag is introduced into the pressure tank. In the

  case of the process according to the invention, on the contrary, the

  loppe stays on the plastic sheet bag also in the

pressure tank.

  When filling, the envelope does not release the bag

  plastic sheet as strictly required by

  troduced to form in the pressure tank a level of plane liquid covered by the sheet. The rest of the plastic bag remains in the envelope. In this way,

  it can not happen any more in the plastic bag

  only below the level of the liquid. At the state completely

  filled, the bag is completely out of the envelope. The enve-

  loppe remaining between the plastic sheet bag and the wall

  interior of the tank does not interfere, because this space is pure-

  simply filled with pressurized gas.

  According to an advantageous embodiment of the process according to the invention, the pressure reservoir is oriented

  in such a way, before the introduction of the plastic foil bag

  tick, that the orifice to close with the gas valve

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  under pressure is at the top, that the plastic bag

  The envelope is inserted with the envelope through this hole from above into the pressure tank, the open end of the plastic sheet bag being directed downwards, and the envelope is fixed with its end facing upwards. in the region of said orifice on the pressure tank or

  on pressurized gas fittings.

  By this fixing of the envelope, it can be removed from the pressure tank in a simple manner

  when replacing the plastic bag.

  The invention will be better understood on reading the

  detailed description that will follow and review the drawings

  annexed which represent, by way of non-limiting example, a

  embodiment of the invention.

  The single figure shows a section through a pressure tank with plastic bag and envelope.

  The figure represents a pressure tank 1 com-

  placed two spherical half-hulls. The spherical half-shells

  are made of plastic. The spherical pressure reservoir 1 is introduced into a ring 2 which is in contact

  with the pressure tank 1 along a meridian.

  The ring 2 consists of a tube which is connected to two hinge elements 3. Each of the two hinge elements 3 is provided with a pivot 8. The two pivots 8 develop in the equatorial plane of the pressure tank 1. They are housed in the pivot bearings 5 of a support frame 4. On one side of the pivot 8, the pivot bearing 5 is provided with a slot 9, through which a screw 6 extends. This screw 6 can be hand tight, so that the pivots 8 can be locked in any position. The pressure tank 1 can thus be fixed in any rotational position. On the pressure tank 1 are fixed, moreover, stop elements 7 which prevent the pressure tank 1 from coming out of the ring 2 when the ring is located

above the equator.

  In the position shown, the pressure reservoir

  1 is provided at the top of an orifice 20 and at the bottom of an orifice

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  19. The orifice 20 is closed with a faucet it for the in-

  troduction of gas under pressure. The orifice 19 is provided with a valve 10 for filling the beer, as well as for emptying. The beer is introduced through a line 15 into the valve part 10. In the orifice 19 is a collar-shaped ring 16 which forms the open end of a plastic foil bag 12. The collar-shaped ring 16 is locked in the orifice 19 by means of two demountable demibables 17a, 17b. This method of attachment is described in the German application DT-OS 20 50 376

  and is not the subject of the present invention.

  The plastic foil bag 12 is still partly in a hose-shaped envelope 13, which is attached at its upper end to a button 18, which

  is on the pressurized gas valve.

  The process proceeds as follows: when a pressure tank 1 is empty, the two fittings, It are removed from the pressure tank. By dismounting the two half-rings 17a, 17b, the emptied plastic sheet bag 12 can be removed through the hole 19.

  13 can be removed with the pressurized gas valve

  It then passes through the orifice 20. A new plastic foil bag 12 with envelope 13 is then introduced from above through the orifice 20 into the reservoir 1 and the corresponding end of the envelope 13 fixed on the button. 18 of the pressurized gas fittings. The pressurized gas valve 11 can then be put in place in the orifice 20. The end of the plastic film bag 12 passing out of the envelope 13 is constituted by the neck-shaped ring 16. This passes of itself through the orifice 19 or can be pulled by hand through the orifice 19. By putting in place the two half-rings 17a, 17b, the neck 16 is then fixed in the orifice 19. The taps 10 can then be

  placed and screwed into the orifice 19. The pressurized gas

  sion is then introduced through the valve 11 into the

  1. The beer is then introduced through the

  15 The beer flows into the plastic foil bag 12 while opposing

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  at the pressure prevailing in the pressure tank 1 and forms a liquid bed 14, the surface of which is covered by

  the plastic sheet of the bag 12. As and when the

  pleating, the plastic sheet bag 12 withdraws more and more from the envelope 13. It is thus ensured that the plastic sheet bag 12 will not form any fold below the bed

liquid 14.

  Of course, the invention is in no way limited to the embodiment of the example described and shown, it is capable of numerous variants accessible to those skilled in the art, depending on the applications envisaged and

  without departing from the scope of the invention.

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Claims (2)

  1. - Method for filling a plastic sheet bag   tick in a pressure tank with a drink containing   carbonic acid, in particular beer,   pressure port being provided with two opposite ports, one of which is closed with a tap for the box for filling and withdrawal and the other with a valve for the pressurized gas for the introduction of the gas under pressure enter here   tank wall and the plastic foil bag, method of   by which before the fitting of the valve parts the plastic bag IO is first introduced in the folded state through an orifice in the pressure tank and then after the fitting of the filling fitting its   open end is placed in communication, in a manner   pressure gauge, with said faucet; after what   I5 the gas under pressure is brought to the pressurized gas valve.   sion and then the drink to the tap of the drink,   characterized in that the plastic sheet bag (12) is inserted into the pressure tank (1) and surrounded by a hose-shaped envelope (13), open at at least one end and then feeding is effected. in gas and beverage while the plastic sheet bag (12) is gradually withdrawn from the envelope (13) which remains in the tank. pressure (1) until the next filling.   2. - Process according to claim 1, characterized in that   that the pressure tank (1) is oriented before the introduction   the plastic bag (12) so that the original   fice (20) to close with the pressurized gas valve (11) is at the top, in that the plastic foil bag (12)   is introduced from above through this orifice (20) into the   pressure vessel (1) and that the plastic foil bag   the envelope (12) is inserted with its open end facing downwards until it is connected to the filling fitting (10), and the envelope (13) with its end facing towards the high is fixed in the region of the   port (20) on the pressure tank (1) or the gas under pressure (11).