WO2010108850A2

WO2010108850A2 - Device for pouring drinks

Info

Publication number: WO2010108850A2
Application number: PCT/EP2010/053547
Authority: WO
Inventors: Dieter Schmidt; Monika Schlotmann
Original assignee: Enviva Gmbh
Priority date: 2009-03-21
Filing date: 2010-03-18
Publication date: 2010-09-30
Also published as: WO2010108850A3; DE102009014373A1; WO2010108850A4

Abstract

The invention relates to a device for pouring drinks, said device comprising at least one liquid supply line on which at least one distribution valve is arranged, at least one control valve being associated with the liquid supply line. The control valve comprises at least three connection openings, at least one of said connection openings being embodied as a feeding opening for feeding a disinfectant receiving element arranged inside the control valve. Furthermore, at least one of the connection openings of the control valve is embodied as an inflow opening and another of the connection openings is embodied as an outflow opening.

Description

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Device for tapping drinks

The invention relates to a device for dispensing drinks with at least one liquid processing line and at least one dispensing valve arranged thereon. Known devices are table water systems or other beverage dispensers, with which processed liquids into drinks and drinks are kept ready for drinking. For this purpose, it is known to equip liquid treatment lines with heating or cooling units, carbonators or filter stages. A disadvantage of the known devices, however, is that germs and bacteria from the beverage outlets of the dispensing valves lift the liquid treatment lines, where they can multiply in an uncontrolled manner and ultimately pose a health risk for those persons who take drinks drawn from the devices. In the known devices therefore labor-intensive cleaning measures of all line parts are required regularly. From the German Utility Model 20 2004 013 168.4 it is known to disinfect a Flüssigkeitsaufbereitungsieitung means of a removable cartridge. For this purpose, the removable cartridge on a continuous container with a disinfectant uptake.

However, the invention has the object of disclosing a device of the type mentioned, with a disinfection of the beverage line is further simplified.

This object is achieved by a device having the features of claim 1. Advantageous developments of the invention are described in the subclaims 2 to 11. The device according to the invention is characterized in that the Fiüssigkeitsaufbereitungsleitung is assigned at least one switching valve, that the switching valve has at least three connection openings, and that at least one of the connection openings is formed as a feed opening of a disposed inside the switching valve disinfectant. The disinfectant receptacle is used to temporarily receive a disinfectant until it has dissolved or distributed in a liquid flowing through the disinfectant uptake. The switching valve has at least two Schaitstellungen, wherein the feed opening is open in a first switching position and is closed in a second switching position. When the feed opening is closed, the disinfectant uptake then has a connection to the liquid treatment line via the respectively other two connection openings, so that disinfectant contained in the disinfectant uptake can enter the liquid treatment line. Thus, the disinfection of the liquid treatment line requires neither the time-consuming use of tools nor the complex handling of change and replacement parts, so that the disinfection by simply loading the Disinfektionsmitteiaufnahme with a disinfectant and subsequent actuation of the switching valve advantageously requires minimal effort. The switching valve is preferably designed as a rotary valve or as a longitudinal slide valve.

According to a first development of the invention, at least one of the connection openings of the switching valve is designed as an inflow opening and another of the connection openings as an outflow opening. In this way, the switching valve is flowed through with closed disinfectant uptake of a liquid, in particular of water, wherein in the disinfectant uptake - -

contained disinfectant is flushed through the discharge opening in the liquid treatment line.

In order to make the flushing out of a disinfectant contained in the disinfectant uptake as efficient as possible, the outflow opening and the inflow opening are connected to one another via the disinfectant receptacles. Preferably, the outflow opening in the housing of the Schaitventils and the inflow opening in the actuator of the Schaitventils are arranged. Flow paths formed between the outflow or inflow opening and the disinfectant intake can advantageously have extensions or constrictions of their flow cross sections, so that particularly effective inflow characteristics can be realized based on a disinfectant received in the disinfectant intake.

According to a particularly advantageous embodiment of the invention, the disinfectant uptake on at least one Spülkäfig for receiving a water-soluble disinfectant. Such disinfectants are preferably in the form of a tablet. It is irrelevant for the invention whether the tablet ausschiießlich is formed from solids, a solid-coated liquid or a solid-coated powder, the solid shells are also advantageously formed water soluble. Of course, it is also within the scope of the invention, the Spülkäfig form such that it is suitable only for the inclusion of a liquid, granular or powdered disinfectant.

It is also proposed that to the

Liquid treatment line is connected at least one bypass line, and that at least one with the bypass line - A -

In the liquid processing line arranged filter body of a filter is bypassed. This ensures that filter bodies which are in any case to be replaced at regular time intervals, in particular activated carbon filter bodies, are not damaged in their efficiency by bacterial sludges or disinfectants.

In order to further aggravate germs and bacteria from entering the liquid line, the liquid treatment line is connected via at least one LJmschaltventil to a disinfection fluid source. In this case, the disinfecting fluid source is in particular an ozone or carbon dioxide source. However, it is also conceivable to use other gases or liquids which have a disinfecting effect, depending on the prevailing pressure in the disinfecting fluid source, this can be used with advantage to after a tapping or a succession of several closely spaced taps in the dispensing nozzle remaining liquid drops to blow out the nozzle. For automatic control of such disinfection or blow-out processes, the disinfection fluid source and the nozzle are connected to each other via a control line, in which at least one time delay element is arranged.

Depending on the type of disinfecting fluid used, a controlled discharge of the disinfecting fluid may be prescribed. For this purpose, it is proposed that the dispensing valve has at least three connection openings and that at least one of the connection openings is designed as a fluid outlet opening assigned to the disinfecting fluid source and another one of the connection openings is designed as a dispensing outlet opening. - -

In order to ensure such a design of the dispensing valve that the entire dispensing outlet opening can be exposed to the disinfecting fluid, without the disinfecting fluid exiting the dispensing outlet, is provided according to a particularly advantageous embodiment of the invention that the Fluidabströmöffnung in the actuator of the dispensing valve and the dispensing outlet in Housing of the dispensing valve is arranged, wherein the Fluidabströmöffnung and the dispensing outlet opening are connected to each other via a trained in the valve seat Spülraum. In the case of a dispensing valve having a spool, such a flushing chamber advantageously has the form of an annular space, wherein the dispensing outlet opening is completely surrounded by the flushing space designed as a holding space. The valve seat is defined in the context of this invention by the sealingly cooperating guide surfaces of the actuator and the housing.

According to a particularly advantageous embodiment of the invention, it is provided that the dispensing valve and the switching valve each have a single-acting housing with a spring-loaded actuator. Such a configuration advantageously offers the possibility of integrally connecting the actuator of the switching valve with each other, so that it is advantageously possible to dispense with a fault-prone remote control of the dispensing valve and switching valve. Of course, it is within the scope of the invention that the dispensing valve or the Schaitventii has a double-acting housing with a motor-driven actuator.

An embodiment from which further inventive features result is shown in the drawings.

Show it: 1 is a sectional view of a valve assembly in a than

Schematic illustrated application example of a device according to the invention; and

2 is a partial perspective view of erfindungsgernäßen

Device in the region of a Desiπfektionsmittelaufnahme.

1 shows an application example of the device according to the invention for dispensing drinks with a liquid treatment line 1.0 to 1.5 and a dispensing valve 2.0 arranged thereon. The liquid treatment line 1.0 to 1.5 is associated with a switching valve 3.0 with three connection openings 4, 5, 6. In this case, the connection opening 6 is designed as a feed opening of a disinfectant receptacle 7 arranged in the interior of the switching valve 3.0. The connection opening 4 of the switching valve 3.0 is designed as an outlet opening arranged in its housing 3.1 and the connection opening 5 is designed as an inlet opening arranged in the actuator 3.2 of the switching valve 3.0. The outlet openings 4, 5 formed as an outlet and inlet opening are connected to one another via the disinfectant receptacle 7. This has a Spülkäfig 8 with a plurality of fluid passages 9, 10, wherein in the Spülkäfig 8 a water-soluble disinfectant 11 is added. To the liquid treatment line 1.0, 1.2, a bypass line 12.0, 12.1 is connected, wherein with the bypass line 12.0, 12.1 a arranged in the liquid processing line 1.1 filter body 13 of a filter 14 is bypassed. The liquid treatment line 1.1 and the

Liquid treatment line 1.2 are connected to each other via a check valve 15, which is arranged in a filter head 16 of the filter 14. Furthermore, the liquid treatment line 1.5 is connected via a switching valve 17 and a check valve 18 to a trained as an ozone source disinfection fluid source 19. The disinfecting fluid source 19 and the dispensing valve 2.0 are connected to each other indirectly via a control line 20, in which a time delay element 21 is arranged. Parallel to the connection to the disinfectant fluid reservoir 19, the changeover valve 17 is connected via a check valve 22 to a control pressure source 24 designed as a carbon dioxide source. The nozzle 2 has three connection openings 25, 26, 27, wherein the connection opening 25 is formed as FiuidabstrÖmöffnung associated with the disinfection fluid source 19 and the connection opening 26 as a Zapfauslassöffnung. The connecting opening 26 designed as a dispensing outlet opening is assigned a spacer 28, which is flowed through without contact by a liquid jet leaving the dispensing valve 2.0. The connection opening 27 is connected via the switching valve 17 to the liquid processing line 1.5. The connecting opening 25 designed as a fluid outlet opening is in the actuator 2.1 of the dispensing valve 2.0 and the connecting opening 26 designed as a dispensing outlet opening is arranged in the housing 2.2 of the dispensing valve 2.0. The connection openings 25, 26 are connected to one another via a flushing space 30 formed in the valve seat 29 of the Zapfventiis 2.0. The bleed valve 2.0 and the switching valve 3.0 each have a single-acting housing 2.2, 3.2 with a loaded via a spring assembly 31 actuator 2.1, 3.1. The actuator 2.1 of the dispensing valve 2.0 and the actuator 3.1 of the dispensing valve 3.0 are integrally connected.

The device according to the invention works as follows:

By an automatic actuation of the solenoid valve 32.0, a working pressure from the control pressure source 24, transmitted via the pressure reducing valve 33 and the housing 2.2 of the nozzle valve 2.0 in the displacement 34 of the nozzle valve 2.0, so that the actuator 2.1 extended and designed as Zapfauslassöffnung connection opening 26 - o -

becomes. Consequently, a liquid flows from a liquid source 35 through a check valve 36 and a pressure reducing valve 37 into the liquid processing line 1.0. From there, the liquid flows through an open solenoid valve 38, through the filter 14 through the liquid treatment line 1.1, 1.2 and a pump 39 in a cooling unit 40 and a Karbonator 41. The carbonator 41 is connected to the formed as a carbon dioxide source control pressure source 24. By manual actuation of a solenoid valve 32.1 cooled liquid flows from the cooling unit 40 via the liquid processing line 1.3 in the liquid treatment line 1.5. By manual actuation of the solenoid valve 32.2 cooled and mixed with carbon dioxide liquid flows from the carbonator 41 via the liquid processing line 1.4 in the liquid processing line 1.5. From the

Fiüssigkeitsaufbereitungsleitung 1.5 the processed liquid then passes through the switching valve 17 through the housing 2.2 of the nozzle valve 2.0 and leaves this over the Zapfauslassöffnung formed as opening 26. If the manual actuation of one of the solenoid valves 32.1, 32.2 ends, the switching valve 17 moves back and it begins in Zeitverzögerungsgiied 21 a predetermined period of time to expire. After the predetermined period of time, the solenoid valve 32.0 is automatically switched back so that the actuator 2.1 is automatically retracted by the spring assembly 31 and contained in the displacement 34 of Zapfventiis 2.0 carbon dioxide through the solenoid valve 32. 0, the switching valve 17 and the nozzle 2.0 is passed and flows out of the port opening 25 formed as a dispensing outlet opening. In the process, the outflowing carbon dioxide entrains liquid droplets adhering in the interior of the dispensing valve 2.0, so that the dispensing valve 2.0 is dried. At the same time there is an actuation of the disinfection fluid source 19. With this operation, ozone from the disinfecting fluid source 19 via the check valve 18 through the - -

dried dispensing valve 2.0 passed. The ozone leaves the dispensing valve 2.0 via the connection opening 28 formed as a fluid outlet opening and flows via an ozone filter 43 into a collecting device 44. After a preset time, the disinfecting fluid source 19 switches off automatically and the device according to the invention remains in a rest position.

For disinfecting the liquid treatment line 1.2 to 1.5, a disinfectant 11 is inserted into the disinfectant receptacle 7. Subsequently, the disinfectant receptacle 7 is moved with the disinfectant 11 therein by manual actuation of the solenoid valve 32.0 in a scavenging position in which the trained as a disinfectant receptacle 7 port 6 is closed by the actuator 3.1 of the switching valve 3.0. If the disinfectant receptacle 7 has reached its flushing position, a solenoid valve 44 arranged in the bypass line 12.0 is automatically opened so that water from the liquid source 35 flows via the liquid treatment line 1.0, the bypass line 12.0 and the connection opening 5 into the disinfectant receptacle 7 and into the disinfectant receptacle 7 contained disinfectant 11 dissolves. From there, the liquid mixed with the disinfectant 11 is introduced via the connecting opening 4 of the housing 3.2, formed as an outflow opening, through the bypass line 12.1 and into the liquid treatment line 1.2 via a check valve 23. In the liquid treatment line 1.2, the liquid mixed with the disinfectant is then via the pump 39, the cooling unit 40, the carbonator 41, the solenoid valves 32.1, 32.2 and the switching valve 17 introduced into the nozzle 2.0. The fluid displaced with the disinfectant 11 leaves the dispensing valve 2.0 via the connection opening 26 designed as a dispensing outlet opening. The flow of the disinfectant 11 is subsequently effected - -

offset liquid interrupted with the solenoid valve 45 for a predetermined period of action. After the interruption, the solenoid valve 45 remains open until the disinfectant 11 has completely left the device via the connecting opening 26 formed as a dispensing outlet opening.

FIG. 2 shows a perspective partial view of the device according to the invention in the region of its

Disinfectant receiving 7. In this figure, a housing 46 surrounding the device according to the invention is shown, on which an insertion slot 47 for feeding the trained in the switching valve 3.0 disinfectant receptacle 7 is formed with a disinfectant 11. The same components are provided with the same reference numbers.

Claims

claims

1. A device for dispensing drinks with at least one liquid processing line and at least one dispensing valve arranged thereon, characterized in that the liquid processing line (1.0 to 1.5) at least one switching valve (3.0) is assigned, that the switching valve (3.0) at least three connection openings (4, 5, 6), and that at least one of the Anschiussöffnungen (4, 5, 6) as a feed opening of a arranged in the interior of the switching valve (3.0) disinfectant receptacle (7) is formed.

2. Apparatus according to claim 1, characterized in that at least one of the connection openings (4, 5, 6) of the switching valve is formed as an inflow opening and another of the Anschiussöffnungen (4, 5, 6) as a discharge opening.

3. Apparatus according to claim 2, characterized in that the outflow opening and the inflow opening via the disinfectant receptacle (7) are interconnected.

4. Device according to one of claims 1 to 3, characterized in that the disinfectant receptacle (7) has at least one Spülkäfig (8) for receiving a water-soluble disinfectant (11).

5. Device according to one of claims 1 to 4, characterized in that the liquid treatment line (1.0, 1.2) at least one bypass line (12.0, 12.1) is connected, and that with the bypass line (12.0,

12.1) at least one in the liquid processing line (1.1) arranged filter body (13) is bypassed.

6. Device according to one of claims 1 to 5, characterized in that the Flüssigkeitsaufbereitungslettung (1.5) via at least one switching valve (17) to a disinfecting fluid source (19) is connected.

7. The device according to claim 6, characterized in that the disinfection fluid source (19) and the nozzle (2.0) via a control line (20) are interconnected, in which at least one time delay element (21) is arranged.

8. Apparatus according to claim 6 or 7, characterized in that the dispensing valve (2.0) has at least three connection openings (25, 26, 27), and that at least one of the connection openings (25, 26, 27) as the Disinfektionsfiuidquelle (19) associated Fluidabströmöffnung and another of the connection openings (25, 26, 27) is formed as Zapfauslassöffnung.

9. The device according to claim 8, characterized in that the fluid outlet opening in the actuator (2.1) of Zapfventiis (2.0) and the ZapfauslassÖffnung in the housing (2.2) of Zapfventiis (2.0) is arranged, wherein the Fluidabströmöffnung and the Zapfauslassöffnung via a valve in the seat ( 29) formed Spülraum (30) are interconnected.

10. Device according to one of claims 1 to 9, characterized in that the dispensing valve (2.0) and the Schaltventi! (3.0) each having a single-acting housing (2.2, 3.2) with a spring-loaded actuator (2.1, 3.1).

11. The device according to claim 10, characterized in that the actuator (2.1) of the dispensing valve (2.0) and the actuator (3.1) of the switching valve (3.0) are integrally connected to each other.