DE646697C - Counter pressure bottle filler with two pressure equalization lines - Google Patents

Description

Counter pressure bottle filler with two pressure equalization lines well-known counter-pressure bottle fillers with valves, taps, slides or central slides As a filling element with two pressure equalization lines, the return beer is in the return air line when filling the next empty bottle by the displaced from the bottle Air expelled upward into the beer kettle. In order for this to be possible, the return air line may do not have too small a cross-section.

For counter-pressure bottle fillers with only one pressure equalization line it is known to provide this air line with a one-way throttle. Because when only one pressure equalization line is used, there is always a small pre-splash arises, half a cubic centimeter is enough, even with throttling the pipe and with a low filling capacity, a foam-free filling cannot be achieved, especially when it comes to sensitive beers.

With the simple counter pressure fillers. without equal pressure are in the Air ducts use nozzles that create a counter pressure in the vessel to be filled should. Highly foaming liquids; like beers, can be made with such devices do not fill foam-free.

So if a bottle breaks during filling through the open return air line If no gas can escape from the liquid boiler, it is already provided with check valves that keep the return air line in the downward direction all the way to lock; therefore the return air line must be emptied upwards.

To an infection of the beer in the liquid kettle by the beer It is also known to avoid the return air line in the return air line, too Called the return beer line, which normally has two clear cross-sections, and although a smaller one in the return air line part, which is in the filling channel, and one larger in the return air duct section above, not in the upward direction, but inevitably or not inevitably to empty downwards, e.g. B. in the Bottle, outdoors or in a vessel that is under constant pressure with the liquid boiler can stand. If now when emptying the return air line down on the return air line, z. B. with different sized clear cross-sections, no throttle device attached is then the lighter foam that is inevitably formed during the filling through the return air line through the heavier beer after the beer kettle pressed and infected its contents.

With the forced emptying of the return beer line downwards it is also disadvantageous if the air pressure in the beer kettle removes the beer in the return air line pushes down too quickly, which occurs when emptying into the bottle Foam formation or a large loss of air when emptying into the open air which in turn entails a pressure drop and foam formation in the beer kettle brings.

The counter-pressure bottle filler has two finite pressure equalization lines and the emptying of the return air line with different clear cross-sections or also the same clear cross-section downwards before you start the next one The bottle to be filled, to which the invention relates only, is now used for the purpose of Avoidance of foam escaping from the return air line to your liquid storage tank, for the purpose of inhibiting the flow of the liquid in the return air line downwards and to prevent the pressure drop in the liquid storage tank in the event of a bottle break, a throttle device attached to the return air line. It will be because of this too with the most sensitive and not very cold beers with the highest filling capacity reaches a black filling of the bottle. Through the appropriate interaction of Single measures will give the most favorable result, as in a black filling to: '£ u'sdruck comes, achieved.

A counter-pressure bottle filler with two pressure equalization lines, included which the return air line ini with each bottle filling up to the liquid level Liquid kettle with beer or d-1. is filled and at your one emptying of the The return air line always takes place in the downward direction, but never in the next empty bottle to be filled, fulfilled when using the throttle device according to the invention on the return air line all the requirements that are related to the black filling must put on a filling machine.

The throttle device lies. advantageous on a return air line part, which is only traversed by air '. The throttling works not only on one side, but double-sided, so that in the event of a bottle breakage, the pressure drop in the liquid tank is prevented and the return air line is emptied downwards.

The throttle device can be installed permanently or also exchangeable be; it can be set up adjustable and may only be needed during to throttle part of the filling process.

Has proven itself z. B. an institution, «-elche as interchangeable Union nut, cap or the like. Is formed with a small bore and on that part the return air line (return beer line) is attached, through which only air flows will.

The geinachteri explanations show that the throttle device the return air line is only really valuable with counter-pressure bottle fillers, if two pressure equalization lines are available and the return air line prior to attachment the next bottle to be filled is empty. The pictures show the subject matter of the invention, for example in a schematic representation.

Fig. T shows a longitudinal section through a filling valve with a liquid storage tank represent, in the position in which the liquid line and the pre-air line closed and the return air line open. The liquid storage kettle is with i, the pre-air line with 2, the liquid line with d., the return air line with 3 and the filling valve with 5. On the part of the return air line 3, which only air flows through it and i a union nut is screwed, the one opposite your cross-section the line 3 has throttled passage opening 7. The filled bottle 8 is during the emptying of the return beer line 3 downwards in a known manner Way connected to an auxiliary air boiler9.

Fig. 2 is a filling valve 5 in cross section with a finitely throttled return beer line and branching channels io, 12 in the cock plug or there are corresponding channels io, 12 in the tap housing, which come into effect when the return beer line is closed, shown. In this figure there is another adjustable throttling by the Throttle valve 13 is provided.

Fig. 3 shows a switched in the return air line 3 replaceable Throttle device 14 is.

The mode of operation of the device is readily apparent from the Illustrations.

It should be noted that the throttle device on the Return air line enables the use of a beer duct with a large clear cross-section and thus also the use of a large return air duct in the filling line, the is easier to clean, does not cause foam clogging and is more perfect drains as a narrow tube.

Claims (7)

PATENT CLAIMS: i. Counter pressure bottle filler with two pressure equalization lines and emptying the return air line with well known, different sized clearances Cross-sections or the same cross-section downwards, before the next one is added Bottle to be filled, characterized in that that by a short Throttle point (Fig. I reference number 6; Fig. 2 reference number io, 12, 13; Fig. 3 reference number 14) a significant increase in gas pressure on the return air path when the beer starts up in the bottle is achieved, so that the gradient effect of the liquid column in the filling tube is reduced and when the return air line is emptied after the bottle has been filled Liquid from the return air line into the filled bottle is significantly delayed flows back .. 2. Machine according to claim i, characterized in that the throttle device only during part of the filling process, e.g. $. only when emptying the return air line, throttles. 3. Machine according to claim i and 2, characterized in that the throttle device is provided in the return air line part through which only air flows. 4th Machine according to Claims i to 3, characterized in that the im only from air flow through part of the return air line (3) located throttle device as a union nut (6), cap or the like. Is formed with a throttle bore (7). 5 '. Machine according to claim i to 4, characterized in that the throttle device is exchangeable. 6th Machine according to Claims i to 5, characterized in that the throttle point is in The cock plug of the filling cock (5) is or the cock plug of the filling cock (5) as a throttle device is used. 7. Machine according to claim i to 6, characterized in that the Return air line before emptying into the bottle through the stopcock of the filling tap (5) is closed and one or more ducts branched off from the return air duct (io, 12) come into effect.