WO2004102091A1

WO2004102091A1 - Refrigeration system for beverage storage device and method for forced pre-refrigeration of the stored beverages

Info

Publication number: WO2004102091A1
Application number: PCT/EP2004/005212
Authority: WO
Inventors: Wolfgang Jobmann
Original assignee: Wolfgang Jobmann Gmbh
Priority date: 2003-05-15
Filing date: 2004-05-14
Publication date: 2004-11-25
Also published as: EP1477754A1

Abstract

The aim of the invention is to actively refrigerate box-in-box beverage containing packages devoid of pre-refrigeration outside of a dispensing device. Another aim of said invention is to increase the flexibility of the dispensing device and to design it in such a way that it receives non pre-refrigerated beverages and, consequently is used not only for maintaining a constant temperature of a flow. For this purposes a refrigeration system is designed for a beverage storage device comprising an internal reception area (20, 20a, 20b) for beverage (1), which is at least partially (21) deformable and encompassed with another reception area (30, 40; 30a, 40a, 30b, 40b) which is arranged outsidely and practically heat-insulated, an outlet (60) for beverage (1) to be cooled or cooled extending from the internal reception area (20, 20a, 20b) and a refrigeration element (10, 31a, 44b) which act on the surface of the deformable section (31) of the internal reception area and is coupled therewith in a heatconducting or cryoconducting manner.

Description

COOLING SYSTEM FOR BEVERAGE STORAGE WITH A METHOD FOR FORCED PRE-COOLING OF THE STORED BEVERAGE

The invention is concerned with the cooling of beverages which are premixed or packaged as premix drinks in liquid-resistant bags which are accommodated in a carrier packaging. These known "bag-in-box" containers or beverage stores are used in dispensing devices, which can be viewed as a separate type of refrigerator. The "bag-in-box" containers are set and cooled as drinks-filled bags with a content of between five and ten liters. The bag-shaped packaging is kept in outer cartons, which outer cartons do not provide any significant heat conduction, but also do not allow essential cold insulation. The beverage is removed from the inner bag through the outer packaging and, if necessary, also from the cooling tube located further out via an outlet hose

Enclosure ("cooling receptacle") led out, for which the hose can be clamped off or opened if necessary.

A difficulty of these devices is that active cooling is not available within a reasonable period of time, i.e. a lowering of the temperature of the beverage to the desired bar temperature cannot be achieved as quickly as desired after changing the outer carton in the external cooling holder is.

In such a cooling device suitable for "bag-in-box" beverages as "outer

Recording "there is a cold transfer from the cooling device or cooling plate provided there to the beverage via the cooling of the air, which conveys the cooling of the beverage or dissipates the heat from the beverage. This convection cooling alone results in a strong limitation of the possible Cold transfer or heat dissipation.

The drink in the bag is not moved with the "bag-in-box" packaging (containers) mentioned. Therefore, the drop in temperature transmitted from the cooling air to the drink can only have a slow effect on the inside of the drink. If precooled beverages are used in the cooling cooling receptacles, for example as a dispenser, this is able to keep the already chilled beverage at a low temperature. This cooling characteristic, which can be referred to as passive cooling, only counteracts a substantial increase in the temperature of the cooled beverage but unable to independently cool an uncooled and not pre-chilled beverage to a bar temperature. It is therefore necessary to cool the beverages beforehand, which are kept in the aforementioned "bag-in-box" containers, which can be done in separate cold rooms over a longer period of time.

A cooling system with the features of numbers (a) to (c) of claim 1 is described in US 2002/043 069 A1 of April 18, 2002 (Niehaus). There, a cooling unit pivoted on a stand is proposed for accommodating at least partially flexible containers filled with fruit juice. Three cooling variants are described, cf. there paragraph [010] with Peltier element, fluid jacket and passive cooling, and no internal mixing device is provided for a drink that may be provided with pulp. This inner circulating device is replaced by pivoting the cooling container about the axis, for which purpose a time-controlled display device is used, cf. there paragraph [049], which signals the point in time at which a user of the cooling system is to pivot this in order to circulate the content, cf. there the two limit positions in FIGS. 4 and 5 as well as the swivel axis with the bearings (there 221, 222) in FIG. 6. However, there is a cooling aid on the top of the beverage to be cooled (cf. reference number 49, paragraph [047 ]), but its cooling capacity is limited. The main cooling capacity is introduced into the liquid from a trough (with liquid filling) or from below through a Peltier element.

The invention has set itself the task of proposing a technical solution which enables active cooling of "bag-in-box" containers with beverage content, without these having to be pre-cooled outside the dispensing device. The aim is to reduce the number of cold rooms or storage rooms, to reduce energy losses through separate cold rooms and to increase the versatility of a dispensing device, which is to be able to accommodate non-pre-chilled drinks and to do more than just keep them permanently the serving temperature.

In the case of the solution, the invention works with an inner receptacle, which envelops the drink in the inserted state and, analogously, the drink can be described as packed in a bag, which is designed to be flexible at least in sections. This inner shot is surrounded by an outer shot, which the

Outer packaging and / or the cooling device in which the outer packaging is set. An outlet as a tubular line leads from the inner one bag-shaped protective cover through the receptacles further out and allows the chilled beverage to be removed from the interior.

A planar cooling element engages from above and provides a touching cooling influence, which acts flat on the bag from the top, at least initially, after the inner receptacle has been set into the outer insulating receptacle. The heat conduction comes about through a coupling, which is touching and does not have to be transmitted via the air. It also acts from above (claim 1, claim 25) and ensures that the transferred cooling capacity reaches the top layers of the mostly water-containing beverage, which means that these layers become heavier due to cooling and sink due to the anomaly of the water (Claim 11). By itself, due to the action of gravity, circulation takes place in the bag as an internal receptacle and warmer beverage layers are shifted upwards, while the already cooled beverage layers (volume fraction) sink to the outlet, where they can be removed when cooled.

The invention does not require a separate active circulation by means of blades or mixers, but rather introduces a circulation through a touching influence from above on the inner receptacle. A large-area coupling of the cooling influence is advantageous, the cooling influence being able to be pressed into the bag, which is flexible at least in sections, which further improves the heat transfer (claim 24).

A supply of cooling power is de facto a dissipation of heat. Analogously, thermal energy flows from the beverage through the touching contact into the cooling element, which has a cooling effect and acts on the surface, which is in a heat-conducting (or correspondingly cold-conducting) coupling with the flexible section of the inner receptacle.

A plate-shaped cooling element is suitable for this, in particular one which engages like a trough in the top of the inner receptacle, which is completely closed, only offers those outlets through which either air upwards (claim 17) or liquid downwards (claim 8) emerges can.

The method (claim 11) offers the possibility of a natural drop during operation of the cooling, in particular during pre-cooling (claims 21, 22) due to the force of gravity, the colder parts of the beverage move downwards and the warmer parts upwards in order to be able to cool them.

The cooling device, as a cooling device with a large surface area, is directly in heat-conducting contact with a cooling unit or a cooling system, which constantly ensures heat dissipation and a low temperature in the area of the serving temperature or below.

If the cooling unit with a large surface area is not connected in a heat-conducting manner to a system that continuously provides cooling capacity, it is in its own right

The storage capacity should at least be dimensioned in such a way that a lowering of the temperature door in the sense of pre-cooling is made possible, in order to allow passive continuous cooling in the cooling room to maintain the serving temperature, or to decrease it steadily but more slowly.

Additional auxiliary devices for improving heat transport or the introduction of a cooling influence are cold transmitters, as described in claim 23, also compare the fleece layer, absorbent layer or textile or cellulose layer, which is impregnated with a liquid that freezes in cooling operation, as in EP-B 793 618 (Woifgang Jobmann). This fleece layer is inserted from above between two wall sections, which are intended to provide heat conduction between the inner receptacle (the bag) and the cooling unit or the cooling system.

Outside the inner, bag-shaped receptacle, which is flexible at least in sections, a single- or double-walled further receptacle is provided (claim 6, claim 19), which define an air space between them which can be described as a cold chamber. The air in this cold chamber is cooled down by the cooling unit in order to influence the temperature of the drink in the inner receptacle by convection cooling.

A mechanical support between these two receptacles is provided by a support device located below (claim 10), which can have a lifting effect (claim 19, claim 20, claim 29, claim 30).

The lifting effect begins with the initial full internal storage (the pouch), where it is pressed up against a cooling top in order to bring in cooling capacity in accordance with the decrease in the filling level. If the level in the inner receptacle drops, this heat conduction (cold conduction) is lost, but is supplemented by the cooling capacity, which is made available by convection in the cold room, and / or by lifting the bag or inner container. As an example of a lifting system, a tube is suitable that can have a lifting effect when inflated, while in the deflated state it specifies a smaller diameter and thus a lower position of the intermediate receptacle (as outer packaging of the bag).

To improve the heat conduction, air bubbles must be removed (claim 18), which can be done by inclined wall sections. The raised state is the state of the pre-cooling, while the drop in the upper level of the drink causes a reduction in the cooling capacity introduced by heat conduction. This sequence of the initially improved cooling capacity and then a reduced cooling capacity is advantageous for the rapid cooling down of a still warm beverage, without the additional recirculation measures by agitators or shovels having to be used (claim 7).

In the described mechanisms of action, the density of the water, which is the main component of the mixed beverage, is used, depending on the temperature. At 4 ° C this density is at a maximum of 1.0 g / cm ³ , at higher temperatures this density becomes increasingly lower, for example 0.998 g / cm ³ , at + 20 ° C. The desired temperature range for serving drinks varies, but is usually above 4 ° C, so that the chilled beverage layers always come to the bottom, near the dispenser.

Due to the influence of the cooling effect from above, a high cooling capacity can initially be made available, with the automatically arising gravitational effect of the cooled water or water-containing beverage. The beverage is arranged below the cooling device with a cooling surface, but touches this cooling device through at least the upper, flexible bag wall as an internal receptacle. Exemplary embodiments explain, supplement and deepen the understanding of the claimed invention.

FIG. 1 is a first exemplary embodiment with a trough-shaped upper side 44b, which exerts a cooling influence on a drink 1 located in the bag 21, 20b.

FIG. 2 illustrates a further exemplary embodiment, in which an upper opening 32a is provided, through which air bubbles can escape in order to improve the efficiency of the cooling from above.

FIG. 1 illustrates a closed receptacle 40b, which can have a larger shape, but in the present case consists of six walls, of which four walls can be seen on average. Provided above is a refrigeration system 11 which is in thermally conductive contact with the cold-transmitting top 44b, which is connected to the vertical walls 40b via an intermediate section 43b. The intermediate wall section 44b has a trough in the center, which engages in an intermediate container 30b via slightly curved transition sections and a flat lower section, which supports an inner, flexible receptacle 20b. In this inner receptacle, which can be shaped as a bag, there is a liquid

Beverage 1 is provided, which can be dispensed from the inside via a dispensing hose 60 and a hose shutoff valve 61.

The liquid 1 is a drink which is accommodated in the bag 1 in such a way that its flexible wall 21, which is provided at least on the upper side, allows the trough-shaped cooling plate 44b to be pressed in, while at the same time supporting the bag 20b in the intermediate receptacle 30b at the edge and bottom. This intermediate receptacle can be made of cardboard and form a box, in which box the "bag" is filled with liquid and supported.

In general terms, the inner bag 20b is a first receptacle (for the beverage), which bag is received by an intermediate receptacle 30b, which in turn is accommodated by a further receptacle 40b when the interior of the bag 20b is to be cooled. For this purpose, an air space 41 is provided as a cooling space, which the intermediate container 30b leaves as an intermediate receptacle between the inner sides of the outermost container 40b. In general, the intermediate receptacle 30b and the outer receptacle 40b can also be located further out Be viewed recording, which houses the interior 20b.

From below, the intermediate receptacle 30b is supported on the bottom by spacers, which are designed here as a lifting system 42b. This lifting system can be resilient. It creates a distance between the bottom side of the outermost container and the bottom side of the inner container so that the flexible zone 21 of the bag 20b can be pressed against the cooling plate 44b from below when and as long as the bag is filled or at least to some extent has complete filling. For this purpose, the lifting system can, by air or other mechanical means, cause the intermediate container 30b to be displaced upward and the flexible zone 21 to contact the cooling plate 44b so that it can act flat on the bag to pass over the flexible section 21 of the inner receptacle to be in a heat-conducting or cold-conducting coupling. Heat is extracted or cold is added, depending on the viewing direction.

If the level drops in the flexible container, the contacting is gradually lost at least in a zone of the flexible section 21 on the underside of the cooling plate 44b. Either the support members 42b are adjusted in height, or this reduction in the cooling introduced by thermal conduction is permitted and relies on the continuing cooling in the cooling space 41, which is filled with cool air and allows convection cooling, which, although not for the initial cooling down of the drink 1 is sufficient in a short time, but still for maintaining a chilled drink which has already been cooled down by the thermal contact in the described flexible section 21.

The causal relationship in cooling is such that the upper layers, which are cooled by the heat conduction (cold conduction), sink due to the anomaly of the water and come closer to the discharge 60, replaced by warmer liquid layers, which upwards by normal gravity be pressed.

The outer receptacle 40b can be very strongly insulating, the receptacles 20b, 30b lying further inside should not be, or at least not be strongly insulating, but have a tubular derivation 60, which is formed by the intermediate receptacle 30b also leads through an opening of the outer insulating receptacle 40b, as shown schematically.

Insofar as one speaks of a closed bag 20b with an at least flexible section 21 on the upper side, an opening is provided which allows the removal of the

Serves drinks. The bag can also be flexible with thin walls overall, since it is supported by the intermediate receptacle 30b, for example as cardboard packaging. The insulating container 40b, to which a refrigeration system 11 is assigned, can be designed as a refrigerator-like or at least similar to a cooling zone in a serving device. The drink itself is then a ready-mixed drink.

A drink is also to be understood as water as such, which is to be cooled down to the serving temperature without a drink being necessarily understood to mean that it must be a sweet or fruit juice drink. However, carbonated drinks are preferred which do not build up internal pressure and are only stored and cooled.

The schematically illustrated lifting system is described in the other exemplary embodiments, so FIG. 2 with reference number 42a and FIG. 1 with reference number 42b in alternative configurations. In a tubular design with an inflation and an upward pressure movement according to FIG. 2, there in the direction h, the inner container 30a can be designed to move upward, but it can also be designed mechanically in another way, such as by an extension of supports by, for example, a screwing motion or a small motor, as an alternative to the pneumatic mode of operation according to FIG. 1 or FIG. 2.

The upward movement creates a contact pressure in the upper resilient (flexible) section 21 of the bag 20b, so that a coupling with low thermal resistance or high efficiency of the heat or cold transfer occurs.

Through the cooling surface 44b located above, the beverage 1 is cooled through the flexible section 21 in the upper layers, to a temperature above 4 ° C., which was below the original temperature of the beverage 1, than the container 30b with the inner container 20b in the cold room 41 was inserted. Subsequently, these layers of the cooled liquids sink, as the density of the water increases (by lowering the temperature), so that it is replaced by warmer water, which is then subjected to cooling by the cooling plate 44b. The ascending, lighter and warmer beverage is successively cooled until the entire beverage content reaches the desired temperature, for example measured by a thermostat or another temperature sensor. This temperature sensor can also be coupled to the lifting system, which is lowered when the temperature drops too much, so that a temperature influence is possible via a lifting movement.

The temperature reduction achieved in this way is active cooling, with no actively moving parts within the liquid. The internal circulation of the liquid that arises results from the gravity and the physical properties of the liquid.

On the basis of the cooling described, the pre-cooling, that is to say the initial significant reduction in the temperature of the content, is realized, which changes in the course of the further removal of the beverage to maintain cooling via the cooling space 41. A lowering of the upper wall 21 of the bag 20b is caused by a

Reduction of the content and thus loosening the good heat-conducting coupling. The further the upper flexible section 21 is away from the plate 44b, the greater the influence of cooling from the sides and from below, through the relatively thin walls of the intermediate receptacle 30b, caused by circulating air, which is also cooled down to a cooling temperature by the refrigeration system 11 is. The cooling system can be supplied with electricity for generating a cooling medium, or the cooling medium itself, which is represented by the arrow 100.

It remains to be mentioned that access is either through a door or by removing the top (the refrigeration system 11 with the lower end of the cold plate 43b, 44b, which is shaped in the form of a tub), which is then placed again from above - after the container 30b has been inserted and insulates with the rest of the container 40b. This conclusion is symbolized by the seat fit 45b, which is circumferential and is adapted to the shape of the outer wall 40b. This connection is also considered a "fixed connection", although it can be released.

The cooling system 11 is also arranged in an example not shown above the inner container, surrounded by the intermediate container, and forms with the insulating container as an outer receptacle a peripheral boundary of an internal cooling chamber 41. In this cooling chamber, the intermediate container lies on supports 42, not shown. For a supplemented case of initial cooling (pre-cooling), the supports 42 can also be moved up mechanically by moving for example, extend by screwing to allow the top of the container to touch a bottom surface of the flat cooling system 11. The mechanism of action of the cooling of the upper layers and the final lowering of the cooled volume fractions is the same as previously described with reference to FIG. 1.

The thermal insulation can be a thermal decoupling of the outside world from the interior 41, which is done by the outer receptacle 40a, likewise the receptacle 40b, as indicated in FIG. 1. For this purpose, insulating materials or insulation materials are used, which are assigned to the wall sections, which are shown in a sectional representation in all the figures.

It also goes without saying that there must be an opening or access to the cooling space 41 which, as in the previous exemplary embodiment, can be accessed by removing the upper part, but which can also be reached through a front door when the outer receptacle is completely closed. In this respect, one speaks of a closed state or a lockable state.

The design that can be achieved is described in the inserted state of the beverage container, the inner receptacle being received as a direct liquid-tight delimitation of the liquid 1 by a double-walled vessel which forms an air space between them. Although the intermediate receptacle and the inner receptacle are functionally handled together (as a bag-in-box), the box can be viewed as a partition and the bag as an internal object to be cooled when it is cooling.

In FIG. 2, which was already mentioned with regard to the lifting system 42a and the individual walls 40a, 30a, those elements are to be described which were not previously explained on the basis of their functional relationship. This functional connection of the cooling also applies to this figure, in which a bag 20a with a flexible wall is also received in an inner receptacle 30a which supports it. The inner receptacle 30a stands on a lifting system 42a, here embodied as a circumferential hose, with which the inner receptacle 30a is relatively supported or held with respect to the outer, insulating receptacle 40a. The outer receptacle is designed as an insulating container and has a lid 41a which is inserted from above and is mechanically suitably designed at the insertion point 45a in order to insulate all round. The upper cooling plate 41a becomes thermally conductive (cold conductive) with a Refrigeration system 11 connected as a cooling unit, which is shown above and which is supplied with electricity or cooling medium via the feed 100. The inner receptacle is at least circumferentially spaced within the outer receptacle 40a, leaving an air space 41 which is also cooled by the refrigeration system 11.

The drink 1 in a thin-walled, liquid-tight and liquid-tight cooling bag is in contact with the upper side with the upper cover wall 31a, which upper wall 31a is designed as a wall inclined upwards towards the center. Approximately in the middle, this wall has an opening 32a, which is formed by a collar. This collar protrudes through a further opening in the cooling plate 41a described above, which is arranged on the underside of the refrigeration system 11.

A tubular section of the resilient upper wall 21 of the flexible bag 20a projects through the collar-shaped opening 32a and is closed here with force F. When the force is released, a passage 62 is formed which allows air bubbles to be discharged which have passed through the inclined upper wall 31a and have collected in the tubular section of the bag 20a.

The oblique design of the underside of the cover of the intermediate receptacle 30a also serves to loosen and displace air bubbles which have formed above the flexible section 21 of the bag and which, lying between them and the underside of the upper wall 31a, impair the heat transfer. Here, too, these air bubbles can be removed through the opening in the collar 32a.

A penetration of the cold-transmitting plate 31a, not shown in FIG. 2, into the interior of the intermediate receptacle 30a, as was explained in FIGS. 1 and 2, is achieved here by increasing the water level, which is made possible by the collar-shaped opening 32a. The drink 1 has a filling height which is greater than the underside of the top wall 31a. As a result, cold can be transmitted or heat can be extracted through a two-dimensional contact and a two-dimensional cooling, which occurs when the top of the wall 31a comes into contact with the underside of the cooling plate 41a.

The intermediate receptacle 30a is lifted upward "h" via the lifting system 42a, for example by inflating the tubular supports 42a.

The layer 33a made of absorbent material, which is additionally introduced to improve the heat conduction, has a small thickness, less than the two wall sections, which connects it in a thermally conductive manner, but absorbs a liquid that preferably freezes in cooling operation in order to reduce the thermal resistance in the adjacent, touching state. When the liquid is absorbed in the absorbent layer, for example as a textile layer or fleece layer, the liquid is distributed practically free of air bubbles and also compensates for mechanical unevenness to make full-surface contact. Unlike the inside, the upper side of the upper wall 31a is essentially flat (horizontal), just as the lower side or upper wall 41a is horizontal and flat.

A full-surface contact and a high transfer capacity of cooling capacity is achieved, which transfer capacity decreases, however, when beverage is dispensed. The upper flexible section 21 of the bag 20a leaves the obliquely upwardly extending underside of the wall 31a and the beverage can then be kept cool in its serving temperature by circulation in the cooling space 41, through the wall 30a of the intermediate receptacle. It should be noted that the

Wall 30a does not have a highly insulating effect, and is usually also designed to be considerably thinner than the outer insulating wall 40a of the cooling space.

The cooling by heat conduction on the top and from above takes place in the same way as in the other exemplary embodiment shown in the figure. The

Mechanism of action of the lowering of the cool volume components is ensured, as is the removal of the beverage cooled to the serving temperature via the hose 60, as in the other exemplary embodiments. The outlet 60 and the air bubble opening 62 are dimensioned very small in diameter compared to the total extent of the bag, so that they do not constitute an essential opening. The inner receptacle 30a is stiffer than the bag 20a.

Claims

Expectations:

1. Cooling system for a beverage storage, with

(a) a first receptacle (20a, 20b) for a drink (1), which receptacle is flexible at least in sections (21) and with one opposite

Heat conduction essentially insulating, further outward, further receptacle (30a, 40a, 30b, 40b);

(b) an outlet (60) for the beverage to be cooled or the chilled beverage (1) which leads from the first receptacle (20a, 20b) located within the further receptacle;

(c) a planar cooling element (31a, 44b), which is in heat-conducting or cold-conducting coupling with the flexible section (21) of the first receptacle, in particular presses on the at least partially flexible inner receptacle (20a, 20b) from above; characterized in that

(d) the flat cooling element (31 a, 44b) is firmly connected to the further receptacle located further out (43b, 40b; 45a, 45b) or via an intermediate layer (33a), which is a good heat conductor, with a section ( 41a), which section is fixedly connected (45a) to the receptacle (40a) located further out; and the first receptacle can be moved upward against the flat cooling element.

2. Cooling system according to claim 1, wherein a storage capacity of the planar cooling element for a substantial reduction in a temperature of the beverage (1) in the inner receptacle (20a, 20b) is sufficiently dimensioned, the cooling element being flat from above onto the first, inner receptacle acts.

3. Cooling system according to claim 1, wherein the planar cooling element (44b) is plate-shaped.

4. Cooling system according to claim 1, wherein the inner receptacle (20a, 20b) has a bag shape and the flat cooling element presses on the bag as an inner receptacle from above, the bag being designed to be liquid-tight and liquid-tight except for at least one outlet (60, 62).

5. Cooling system according to claim 1, wherein the further receptacle (40b, 30b, 43b; 40a, 30a, 31a) is assigned its own refrigeration system (11), the further receptacle being at least essentially completely closable (45) or closed in which closed state the further receptacle receives the first, inner receptacle and essentially thermally decouples, in particular insulates, from the outside.

6. Cooling system according to claim 1, wherein the further receptacle is double-walled, as an inner receptacle and an outer receptacle, between which receptacles an air space (41) is formed, which allows a circulation of cool air from a refrigeration system (11) above the inner mount.

7. Cooling system according to claim 1, wherein the drink in the inner receptacle (20a, 20b) without a circulation device or without one

Circulation device is stored, and the surface-acting cooling system (11) is arranged substantially above the stored beverage.

8. Cooling system according to claim 4, wherein the liquid-resistant bag (20a) has a tubular outlet (60) in its lower region, for dispensing the

Beverage.

9. Cooling system according to claim 1, wherein the further receptacle, in particular in a double-walled design, is essentially rigid, more rigid than the inner receptacle for storing the beverage (1).

10. Cooling system according to claim 1 or 9, wherein the further receptacle (40a, 30a, 31a; 40b, 40a, 43b, 44b) consists of two separate receptacles which form an intermediate receptacle and an outer receptacle, which are nested, in particular with one poorly heat-conducting coupling are supported relative to each other (42a, 42b).

11. A method for cooling a non-actively circulated beverage (1) in a memory (20a, 20b), wherein

(i) the drink in an at least partially flexible

Bag (20a, 20b) is contained and this is placed in a cooling space (41), from above with a planar cooling device

(44b, 31a) is coupled, in particular by pressure on the top of the bag; (ii) during operation of the cooling, the packaged beverage (1) cools down due to a natural sinking of the colder beverage portions (with a higher specific density).

12. The method of claim 11, wherein the beverage is a ready-mixed beverage.

13. The method according to claim 11, wherein the method is used in a dispensing device.

14. The method according to claim 11, wherein the height of the bag is changed (h), in particular raised (42a, 42b) before or during the removal of the drink.

15. The method according to claim 11, wherein a storage capacity of the surface-acting cooling element for a substantial reduction in a temperature of the beverage (1) in the inner receptacle (20a, 20b) is sufficiently dimensioned, the cooling element being flat from above onto the first, inner receptacle acts.

16. The method of claim 11, wherein the beverage is packaged in the flexible walled pouch, which itself is received in a rigid receptacle (30a) which supports it from several sides.

17. Cooling system according to claim 4 or 8, wherein the liquid-resistant bag has an opening (62) located in its upper region, for dispensing air bubbles from the beverage content of the inner, bag-shaped container.

18. Cooling system according to claim 1, wherein an overhead wall section of the further outer, further receptacle (31a) to an upstanding

Opening (32a) is inclined to allow existing air bubbles to emerge with the filled drink even when the internal receptacle is recorded.

19. Cooling system according to claim 10, wherein the mechanical coupling of the double-walled additional receptacle takes place via a lifting system (42a) which supports the inner wall system (30a) of the further exception with respect to the outer wall system (40a) of the further receptacle so that it can be displaced vertically (h), especially allowed to lift.

20. A cooling system according to claim 19, wherein the lifting system consists of a hose (42a) which has an elastic wall which yields when the internal pressure increases in order to change the diameter of the hose and to raise the inner wall system (h).

21. The method according to claim 11, as part of a pre-cooling of a drink in the liquid-resistant bag (20a, 20b), wherein the surface-acting cooling device becomes weaker as the drink (60) is removed from the bag, but the drink (1) nevertheless is cooled in the cold room (41).

22. The method according to claim 21, wherein a long-term cooling is carried out by a cooling unit (11) which cools the temperature, in particular air temperature in the cooling space (41) between two walls of a double-walled outer receptacle (40a, 30a) to a serving temperature significantly below a room temperature ,

23. Cooling system according to claim 1, wherein the coupling between an upper side of a further inner receptacle (31a) and the lower side of an upper wall section (41a) of a further outer receptacle takes place via an absorbent layer (33a) in which a liquid is distributed without air bubbles is which liquid is suitable for freezing in cooling operation to improve heat conduction between the two sides (31a, 41a).

24. Cooling system according to claim 1 or claim 4, wherein the surface-acting cooling element (44b) presses into the resilient section (21) of the inner receptacle, at least when the inner receptacle is completely filled or when the beverage (1) is raised above a height by means of a supporting lifting system (42a, 42b).

25. Cooling system for a beverage storage, with the following properties

(a) a first, inner receptacle (20a, 20b) for a drink (1), which drink is resiliently packaged at least in sections (21), and with a further receptacle (30a, 40a , 30b, 40b);

(b) an outlet (60) for the cooled or chilled beverage (1), which leads out of the inner receptacle (20a, 20b);

(c) a planar cooling element (31a, 44b) which is arranged above the first, inner receptacle (20a, 20b) in order to connect the flexible section (21) of the packaging in the inner receptacle into a heat-conducting or cold-conducting coupling to come.

26. Cooling system according to claim 25, wherein the cooling element permanently good heat conduction, in particular firmly with the further located

Admission related (43b, 40b, 45).

27. Cooling system according to claim 25 or 26, wherein the cooling element is coupled in a heat-conducting manner via an intermediate layer (33a), which is a good heat conductor, to a section (41a), which section is located further out

Recording (40a) is in a heat-conducting connection (45a).

28. Cooling system according to claim 25, wherein the surface-acting cooling element (44b) is plate-shaped.

29. Cooling system according to claim 25, wherein the further receptacle (40a, 30a, 31a; 40b, 43b, 44b) and the inner receptacle (20a, 20b) are movably supported (42a, 42b; h).

30. Cooling system according to claim 29, wherein the inner receptacle (20a, 20b) is movable upwards against the surface-acting cooling element, corresponding to the lowering of the fill level of the receptacle, in order to press the inner receptacle against the cooling element.

31. Cooling system according to claim 25, wherein the further receptacle (40b, 30b, 43b; 40a, 30a, 31a) is assigned its own refrigeration system (11), the further receptacle being at least essentially completely closable (45) or closed in which closed state the further receptacle receives the inner receptacle and essentially thermally decouples from the outside, in particular insulated.

32. Cooling system according to claim 25 or 29, wherein the further receptacle is double-walled, as a more inner receptacle and a more outer receptacle, between which receptacles an air space (41) is formed, the one

Circulation of cool air is permitted, which emanates from the or a refrigeration system (11) above the inner receptacle.

33. Cooling system according to claim 25, wherein the drink in the inner receptacle (20a, 20b) without a mechanically acting by movement

Circulation or circulation is stored, and the surface-acting cooling element (11) above the stored drink is arranged thereon.

34. Cooling system according to claim 25, wherein in the inner receptacle (20a, 20b) a bag shape with drink is inserted and the bag is liquid-tight and liquid-tight, except for at least one outlet (60, 62).

35. Cooling system according to claim 29 or 25, wherein the further receptacle is essentially rigid, in particular as a double-walled design and more rigid than the inner receptacle for storing the beverage (1).

36. Cooling system according to claim 25, wherein the further receptacle (40a, 30a, 31a; 40a, 40b, 43b, 44b) consists of two separate receptacles, which form an intermediate receptacle and an outer receptacle, which are nested in one another, in particular with a poorly heat-conducting one Coupling are supported relative to each other (42a, 42b).

37. Cooling system according to claim 25, wherein a bag as the first receptacle is changed in its height before or during the removal of the beverage (h), in particular is raised (42a, 42b).

38. Cooling system according to claim 25, wherein a storage capacity of the surface-acting cooling element (11) for a substantial reduction in a temperature of the beverage (1) in the inner receptacle (20a, 20b) is sufficiently dimensioned, the cooling element permanently from above to the inner Acquisition acts flat.

39. Cooling system according to claim 25, wherein a liquid-resistant bag (20a) has an inner receptacle in its lower region a tubular outlet (60) for dispensing the beverage.

40. Cooling system according to claim 25, wherein the liquid-resistant bag has as an inner receptacle an opening (62) located in its upper region, for dispensing air bubbles from the beverage content of the inner, bag-shaped container.

41. Cooling system according to claim 25, wherein an overhead wall section of the further outer, further receptacle (31a) is designed to be inclined toward an upwardly projecting opening (32a) in order to allow existing air bubbles to escape, even when the inner receptacle is taken up, with the beverage filled ,

42. Cooling system according to claim 36, wherein the mechanical coupling of the double-walled additional receptacle is a lifting system (42a), which supports the inner wall system (30a) of the further exception vertically displaceable (h) relative to the outer wall system (40a) of the further receptacle, in particular allowed to lift.

43. Cooling system according to claim 42, wherein the lifting system consists of a hose (42a), which has an elastic wall that yields when the internal pressure increases in order to change the diameter of the hose and to raise the inner wall system (h).

44. Cooling system according to claim 25, wherein long-term cooling of the surface-acting cooling element (31a, 44b) is carried out by a cooling unit (11) which cools the temperature, in particular also an air temperature in the cooling space (41) between two walls of a double-walled outer

Recording (40a, 30a), to a serving temperature significantly below an ambient or room temperature.

45. Cooling system according to claim 25, wherein a coupling between an upper side of a further inner receptacle (31 a) and the lower side of an upper wall section (41a) of a further outer receptacle takes place via an absorbent layer (33a) in which a liquid is free of air bubbles distributed s is which liquid is suitable for freezing in cooling mode

Improvement of heat conduction between the two sides (31a, 41a).

46. Cooling system according to claim 25, wherein the surface-acting cooling element (44b) presses into a resilient section (21) of the bag containing the beverage, at least when the bag is completely filled or when the height of the beverage (1) is raised Pouch via a supporting lifting system (42a).

47. Cooling system according to claim 25, wherein the beverage is packaged in a bag provided with flexible walls 5, which is itself in a more rigid receptacle (30a)

\ is added, which supports it from several sides.

48. Cooling system according to claim 25, wherein the flat cooling device presses into an inserted bag (20a, 20b). '0

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