AT501388B1 - DEVICE FOR ADDRESSING LINEED DRINKING WATER WITH A WATER SOLUBLE GAS SUCH AS CARBON DIOXIDE OR OXYGEN - Google Patents

Description

2 AT 501 388 B1

The present invention relates to a device for enriching tap water with a water-soluble gas such as carbon dioxide or oxygen according to the preamble of claim 1. 5 In known devices for enriching tap water with carbon dioxide is supplied to a mixing chamber via a supply of drinking water and carbon dioxide via a gas line. In the mixing chamber, the drinking water is mixed with the carbon dioxide and the carbon dioxide added drinking water is fed into a tap line of a tap. At the tapping point, carbon dioxide-displaced drinking water can then be removed. It is known, in such devices, to store the carbon dioxide in an exchangeable storage container. To accommodate the reservoir is a holder. This wiest a fitting for connecting to a reservoir-side counterpart. The connection of connecting piece and counterpart is used to establish a fluidic connection between the reservoir and the gas line. 15

The holders used in such a device are matched to the reservoir used in the respective system. The pressurized storage containers must be securely held by the holder in order to avoid possible accidents. The use of only one type of storage containers in conjunction with a holder has the disadvantage that, for example, the volume of the storage container can not be adapted to the consumption of carbon dioxide in the device. This can lead to reservoirs are arranged over a long life on a system or a very frequent change of the reservoir is required. 25

In contrast, it is an object of the invention to provide a device by means of which greater flexibility in the storage containers used is achieved and in which the reservoir can be easily replaced without much installation effort. The object underlying the invention is achieved by a device according to independent claim 1.

The inventive design of the holder makes it possible to use storage containers of different outer dimensions and thus also different volumes. 35 As it is widely customary for gas cylinders and gas cartridges that the cartridges with a small volume not only have a smaller outside diameter but also a smaller axial length, it becomes possible only in connection with the longitudinally displaceable arrangement of the support base with the formation of airfoils of different outside diameters. Store reservoir of different sizes in the holder safely. 40

The system is therefore improved by the invention with regard to the use of different storage containers and with regard to the simple exchange of storage containers. 45 According to a preferred embodiment of the invention, the support floor is stepped stairs and has circular and / or annular concentric wings. Due to the step-like gradation, it is possible to form on one and the same support floor several, so at least two, wings, so that one and the same support base is suitable to be used in conjunction with various storage containers. It is also possible that the clear so far above a support surface corresponds to the outer diameter of a supportable on this support reservoir. As a result, not only an axial guidance, but also a lateral guidance of the storage container inserted in the holder in the region of the holder is achieved in a simple manner. In accordance with a further embodiment of the invention, the supporting surfaces have a curvature that is correspondingly shaped on the bearing surfaces in the area of contact of the bulges of the storage container. The contour-following adaptation of the wings to the reservoir of corresponding size makes it possible to combine the axial support action and the lateral guiding action of the wings in a common mold section. In this case 5, this measure can be done alternatively or in addition to the adjustment of the clear width above the support surface to the outer diameter of the reservoir.

According to a further embodiment of the invention, the support base is subjected to a force of force in the axial direction on the connecting piece. The provision of a force in the axial direction io serves on the one hand to establish a secure connection between the holder and the reservoir, on the other hand, it is also possible to exchange the reservoir in a simple manner. It is not absolutely necessary to make sure that the storage container is securely held by means of corresponding locks and latches. In an advantageous embodiment of the invention, the holder has at least one axially aligned guide rail. On the guide rail, the connecting piece, which is connectable to the counterpart held. In addition, a carriage is axially displaceable on the guide rail. The support floor projects from the carriage. In this case, in particular, a right angle between the carriage and the orientation of the support box 20 is provided. The slidable arrangement of a carriage on a guide rail allows in a simple manner the longitudinally displaceable mounting of the support base with respect to the connecting piece. This longitudinally displaceable arrangement of the support base relative to the connecting piece is not only required for adaptation to different dimensions of reservoirs in the axial direction, but also for the simple production of the axial clearance required for exchanging the reservoir.

To support the reservoir on the holder in the region of the wings of the support floor, a spring is arranged according to a development of the invention between the carriage and the guide rail. The spring may be formed as a tension or compression spring. She 30 acts while the carriage with respect to the guide rail in the direction of the connector.

According to a further advantageous embodiment of the invention, the fitting of the holder and the counterpart of the reservoir each have an axially oriented Schraubge-35 winch for screwing together. By this measure, it is possible to axially align the reservoir by inserting and settling on the support base of the holder, wherein it is supported in at least one supporting surface of the support base and hold without applying further holding forces in an assembly position, in which the counterpart in contact with the connecting piece passes. By simply turning the reservoir can then Ver-40 screw of counterpart and fitting done, so that a permanent, but releasable connection between the reservoir and holder is created. It is also conceivable that a bayonet connection takes the place of the screw. Both when using a screw connection as well as when using a bayonet connection fitting and counterpart can be so complementary to each other that at Ver-45 screws or the manufacture of the bayonet joint simultaneously the fluidic connection between fitting and reservoir, so the fluidic connection between the Gas line and the interior of the reservoir, is produced. Pressurized carbon dioxide can then flow from the reservoir to the mixing chamber. The preparation of this fluidic connection when attaching the reservoir, for example, thereby suc conditions, that a corresponding functional element of the connector actuates a valve arranged in the counterpart in the opening direction, to maintain the valve opening a continuous actuation of the valve by the functional element is required. It is alternatively also possible that a hollow needle is arranged in the connecting piece, which pierces a sealing surface of the reservoir formed for this purpose. It is preferably provided that the fluidic connection is made only when it is ensured that the connections between the connecting piece and the counterpart are no longer unintentionally released by the pressure forces which occur during the production of the connection.

According to a preferred embodiment, the connecting piece is formed on the high pressure side to a 5 pressure reducer. By forming the fitting directly on the pressure reducer, the line length, which is subjected to high pressure, is reduced to a minimum. At the same time by adjusting the pressure reducer to a suitable screw simultaneously the concentration of dissolved carbon dioxide in the drinking water can be adapted to the needs. 10

According to a further embodiment of the invention, the holder is attachable to a wall. By attaching the holder to the wall, on the one hand, an independent arrangement of the holder is made possible by the mixing device, at the same time a firm connection with a wall is a particularly accident-proof attachment of a corresponding pressurized 15 storage container.

For example, the holder is screwed by means of an angle to a building wall or directly to the housing of the device. The invention will be explained in more detail with reference to an embodiment shown in the drawing; show it:

Figure 1: a schematic representation of a device for enriching tap water with carbon dioxide; FIG. 2 shows a perspective view of a holder according to the invention with a storage container arranged thereon;

Figure 3: a support base according to the invention in a perspective view; and

Figure 4a to 4d: the arrangement or removal of a reservoir in or out of the

Holder. 30

FIG. 1 shows a device 10 for enriching conducted drinking water with carbon dioxide. The construction would be substantially identical when enriched with another water-soluble gas, for example oxygen. The drinking water is supplied via the supply line 11 to a mixing device 17. In the mixing device 17, a mixing chamber-35 is formed, wherein in the mixing device 17 also other means for performing the enrichment can be provided. The carbon dioxide is supplied to the mixing device 17 via the gas line 12 from the reservoir 15. The reservoir 15 is a conventional CO 2 bottle. In the region of the gas line 12, a pressure reducer 28, for example, a reducing valve is arranged, which reduces the side of the reservoir 15 40 provided high pressure to DIN pressure, which is needed for the enrichment of drinking water with the carbon dioxide in the mixing chamber.

From the mixing device 17 and from the mixing chamber in the mixing device 17, the dispensing line 13 leads to the tapping point 14. In the dispensing line 13, the enriched with carbon dioxide chicher drinking water out. At the tapping point 14, this can be removed in portions, for example by the glass, for example, at a tap or at a correspondingly shaped fitting.

FIG. 2 shows a perspective view of a holder 20 with a reservoir 15 held therein. A pressure reducer 28 and a connecting piece 21 formed thereon are arranged on the holder 20. The connecting piece 21 opposite a support base 22 is arranged on the holder 20.

In this case, the support bottom 22 projects at right angles from a carriage 25, which is displaceably mounted axially along a pair of guide rails 24 of the holder 20. Between a guide rail 24 and the carriage 25, a spring 26 is arranged, the force applied to the carriage 25 and thus also the support base 22 in the direction of the connecting piece 21. The holder 20 can be fastened via a flange 19 to a wall or to the housing of the mixing device 17. The guide rails 24 are formed axially parallel to the axial alignment 5 of fitting 21 and the bearing surfaces 23 of the support floor 22. The reservoir 15 is held in the holder 20 on the one hand via the connecting piece 21 and on the other hand via a support surface 23 of the support floor 22. In this case, the reservoir 15 is held on the support floor 22 both axially and laterally guided. FIG. 3 shows a support floor 22. It has two support surfaces 23 of different outer diameters. The two wings 23 are formed substantially annular and concentric with each other. They are additionally offset axially in the direction of displacement of the support floor 22. The axial offset AV is chosen so that the web formed by this axial offset 18 has a height which is so large that the supported on the inner-15 axial support surface 23 reservoir 15 is laterally guided by the web 18. For this purpose, the web 18 has a clear width L1 and L2, which corresponds to the outer diameter of a corresponding storage container 15. If the reservoir 15 has a curved surface at its supporting bottom end, not only an axial support of the reservoir 15, but also an axial alignment and lateral support of the reservoir 15 can be achieved by corresponding curved curved support surfaces 23.

Figure 2 shows a reservoir 15 which is formed large volume and has a large outer diameter. Therefore, the reservoir 15 is supported by the axially closer to the connector 21, the outer support surface 23 of the support base 22 and laterally guided by the outer web 25. The smaller-volume gas cylinder shown in FIGS. 4a to 4d, which serves as a reservoir 15, is supported on the inner support ring 23 axially remote from the connector 21 and is guided laterally by the inner web 18, which bounds the inner support surface 23 radially outward and generates the axial offset AV between the two wings 23, guided. 30

The correct axial distance between the support base 22 and the connecting piece 21 is achieved by axial displacement of the carriage 25 along the axially parallel guide rail 24. It should be noted that the smaller volume, a smaller outer diameter having gas cylinder, the smaller reservoir 15 may have a smaller axial length 35 than a larger volume, larger diameter having gas cylinder, as shown for example in Figure 2.

Figures 4a to 4d show different steps in the process of insertion and Anschlie-ßens a reservoir 15 in the holder 20 with the connector 21. 40

FIG. 4a shows the introduction of a filled storage container 15, such as a gas cylinder, into the holder 20. The storage container 15 is placed laterally obliquely on the corresponding support surface 23 of the support bottom 22. The tray is pressed against the action of the spring 26 axially downwardly from the connector 21, so that the counterpart 16 of the reservoir 45 can be pushed under the connector 21 and then aligns axially to this. Under the action of the spring 26 of the support base 22 carrying, guided in the guide rails 24 carriage 25 is moved toward the connector 21 again. As a result, the counterpart 16 moves a distance into the connector 21 until the thread 27 of the counterpart 16 engages with a corresponding thread so the connector 21. The reservoir 15 is thereby axially aligned and already held loose in the holder 20. Now, the position shown in Figure 4b is reached, and by turning the reservoir 15, a screw connection between the counterpart 16 and the connector 21 is made. The connecting piece 21 is formed directly on the pressure reducer 28, which in turn is arranged on the holder 20. By corresponding embodiment of the connecting piece 21, over the stroke during the last revolution

Claims (12)

6 AT 501 388 B1 gene of the two threaded against each other, the fluidic connection between the reservoir 15 and the high-pressure side input of the pressure reducer 28 is made, which is connected at its pressure-reduced output side to the gas line 12. In this position, the reservoir 15 is securely held in the holder 20 and protected. 5 After emptying the storage container 15, it can be removed again from the holder 20 in accordance with the procedure shown in FIGS. 4c and 4d. First, as shown in Figure 4c, by rotating the reservoir 15 in a corresponding direction of rotation, the screw connection between the counterpart 16 and the connector 21 is released again, io The fluidic connection between the reservoir 15 and the pressure reducer 28 during the first releasing screw turns again from each other separated and the storage chamber of the reservoir 15 again fluidly completed. Once the screw is completely dissolved, the reservoir 15 is axially guided away from the connector 21 until the guiding action of the fitting 21 against the counterpart 16 is-15 det. In this case, the carriage 25, which carries the supporting floor 22, again moved axially away from the connecting piece 21. This movement takes place against the force of the spring 26, so that this sliding movement is reversed automatically after removing the reservoir 15 again. The reservoir 15 can now be removed laterally, as shown in FIG. 4 d, the bearing of the guide container 15 on the corresponding support surface 23 of the support base is thereby released. The holder 20 is now ready to receive a new reservoir 15 ready. Claims 1. A device for enriching tap water with a water-soluble gas such as carbon dioxide or oxygen, with a) a mixing chamber, which supplied the drinking water via a feed line and the carbon dioxide 30 via a gas line and of the drinking water mixed with carbon dioxide in a tap line is led to a tapping point; b) an interchangeable reservoir, connectable to the gas line, in which the carbon dioxide is stored; c) a holder for receiving the reservoir, which is provided with a connection piece for connection to a reservoir-side counterpart and for establishing a fluidic connection of the reservoir to the gas line; characterized in that the holder (20) the connecting piece (21) opposite a support base (22) 40 d) with respect to the connecting piece (21) is held longitudinally displaceable in an axially displaceable direction; and e) has in the displacement direction axially staggered wings (23) of different outer diameter for the axial and lateral support of reservoirs (15) of different diameters. 45 2. Device according to claim 1, characterized in that the supporting floor (22) is stepped like a staircase and circular and annular concentric wings (23) onWhite. 3. Apparatus according to claim 1 or 2, characterized in that the clear width so (L1, L2) above a support surface (23) corresponds to the outer diameter of a storage container (15). 4. Device according to one of the preceding claims, characterized in / that the wings of a curvature of the reservoir are shaped accordingly. 55 7 AT 501 388 B1 5. Device according to one of the preceding claims, characterized in that the supporting bottom (22) in the axial direction of the connecting piece (21) is subjected to force. 6. Device according to one of the preceding claims, characterized in that the holder (20) has at least one axially parallel aligned guide rail (24) on which the connecting piece (21) is held and on which a carriage (25) abkragt. 7. Apparatus according to claim 6, characterized in that between the carriage (25) and guide rail (24) has a spring (26) is arranged. 10 8. Device according to one of the preceding claims, characterized in that the connecting piece (21) and counterpart (16) each have an axially aligned screw thread (27) for screwing together. 9. Device according to one of the preceding claims, characterized in that the connecting piece (21) and counterparts (16) are formed so complementary to each other that when connecting together the fluidic connection between the connecting piece (21) and reservoir (15) is produced. 10. Device according to one of the preceding claims, characterized in that the connecting piece (21) is formed on the high pressure side to a pressure reducer (28). 11. Device according to one of the preceding claims, characterized in that the holder (20) can be fastened to a wall. 25 12. Device according to one of the preceding claims, characterized in that the holder (20) by means of an angle (19) on a building wall or on the housing of the device can be screwed. 30 Including 4 sheets Drawings 35 40 45 50 55