AT501388A1 - DEVICE FOR ADDRESSING LINEED DRINKING WATER WITH A WATER SOLUBLE GAS SUCH AS CARBON DIOXIDE OR OXYGEN - Google Patents

Description

PATENT ATTORNEYS

DIPL.-ING. WALTER WOODS DIPL.-ING. OTTO PFEIFER DIPL.-ING. DR. TECHN. ELISABETH SCHOBER

A-1010 VIENNA, SCHOTTENRING 16, BÖRSEGEBÄUDE

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.

In known devices for enriching tap water with carbon dioxide is fed 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 to provide the carbon dioxide in such a device in a replaceable reservoir. 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.

The holders used in such a device are matched to the reservoir used in the respective system. In this case, the pressurized storage containers must be • • • · ♦ ··· · «• · · · ······························································································· · · · ·································································································································

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.

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. Since it is widely customary for gas cylinders and gas cartridges that the cartridges with a small volume not only have a smaller outer diameter, but also a smaller axial length, it is possible only in connection with the longitudinally displaceable arrangement of the support base with the formation of wings of different outer diameter, reservoir different size in the holder safely. • t ······················································································································································································································ · ···· ··· - 3 -

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.

According to a preferred embodiment of the invention, the support floor is stepped like 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 width 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.

According to a further inventive embodiment of the invention, the wings have a curvature, which is shaped according to the curvature of the reservoir in the contact area on the wings. 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. This measure may alternatively or in addition to the adjustment of the clear width above the 4 • ·······················································································. ··· ·· ···· · «*« ···

Tragfläche made to the outer diameter of the reservoir.

According to a further embodiment of the invention, the support base is acted upon in the axial direction of the fitting out. The provision of a force in the axial direction 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.

According to 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 floor 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 with respect to the connecting piece is not only adapted to different dimensions of storage containers in the axial direction, but also to the 5-fold It is necessary to produce the axial clearance required to replace 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. It acts on the carriage with respect to the guide rail in the direction of the connection piece.

According to a further advantageous embodiment of the invention, the connecting piece of the holder and the counterpart of the reservoir each have an axially aligned screw thread 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 then screwing of counterpart and fitting can be 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 and when using a bayonet connection, the connection piece and the cover can be • 9 9 9 9 9 9 9 9 9 9 · 9999 · In this case, the fluidic connection between connection piece and storage container, ie the fluidic connection between the gas line and the interior, is simultaneously designed to be complementary to one another during screwing or production of the bayonet connection 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, take place in that a corresponding functional element of the connecting piece actuates a valve arranged in the opposite sense in the opening sense, wherein a continuous actuation of the valve by the functional element is required to maintain the valve opening. 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 production of the fluidic connection takes place only when it is ensured that the connection between the connecting piece and counterpart is no longer unintentionally solved by the pressure forces occurring during the production of the compound.

According to a preferred embodiment, the connecting piece is formed on the high pressure side to a pressure reducer. By forming the fitting directly on the pressure reducer, the length of delivery, which is subjected to high pressure, is reduced to a minimum. At the same time, by adjusting the pressure reducer at a suitable position, it is possible to adjust the pressure reducer to a suitable setting position. At the same time, the concentration of carbon dioxide dissolved in the drinking water can be adapted to the needs.

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 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 pre-storage container in or out of the holder.

FIG. 1 shows a device 10 for enriching conducted drinking water with carbon dioxide. The construction method was • • • • · · · · ······················································· ··· - 8 - when enriched with another water-soluble gas, for example oxygen, essentially identical. The drinking water is supplied via the supply line 11 to a mixing device 17. In the mixing device 17, a mixing chamber 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 pressure provided by the reservoir 15 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 or 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 drinking water is performed. 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 storage container 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. ·····································································································. ··· ·· »- 9 -

In this case, the support bottom 22 projects at right angles from a carriage 25, which is axially displaceably mounted 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 is 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 of the connector 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.

3 shows a support floor 22. It has two wings 23 different outer diameter. 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 axial support surface 23 reservoir 15 is guided laterally through the web 18. For this purpose, the web 18 has a clear width LI or L2, which corresponds to the outer diameter of a corresponding supply reservoir. ··· ·············································································. It corresponds to 15 containers. If the reservoir 15 has a curved surface at its supporting bottom side end, not only an axial support of the reservoir 15, but also an axial orientation and lateral support of the storage container 15 can be achieved by correspondingly curved trained wings 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 guided laterally through the outer web 18. 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.

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 than a larger volume, a grüße- 11 ren diameter having gas cylinder, as shown for example in Figure 2.

Figures 4a to 4d show different steps in the process of inserting and connecting a reservoir 15 in the holder 20 with the connector 21st

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 15 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 of 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 appropriate 12 • t · t · · · · · · · · · · ··················································································. ····· ·· ···

Embodiment of the connecting piece 21 is made over the stroke during the last revolutions of the two threads against each other, the fluidic connection between the reservoir 15 and the high pressure side input of the pressure reducer 28, 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.

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 loosening the reservoir 15 in a corresponding direction of rotation, the screw connection between the counterpart 16 and the connector 21 is released again. The fluidic connection between the reservoir 15 and the pressure reducer 28 is again separated from each other during the first releasing screw turns and the reservoir of the reservoir 15 is again fluidly closed. Once the screw is completely dissolved, the reservoir 15 is axially guided away from the connecting piece 21 until the guiding action of the connecting piece 21 relative to the counterpart 16 is terminated. 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 displacement movement is automatically reversed again after removal of the storage tank 15. - 13 - 13 ···················································································································································································································· ···· ΦΦ ΦΦ ΦΦ ·

The reservoir 15 can now, as shown in Figure 4d, be removed laterally, the system of the guide container 15 on the corresponding support surface 23 of the support floor is thereby released. The holder 20 is now ready to receive a new reservoir 15 ready.

Claims (12)

14 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• A device for enriching tap water with a water-soluble gas such as carbon dioxide or oxygen, with a) a mixing chamber which supplies the drinking water via a feed line and the carbon dioxide via a gas line and from the offset with carbon dioxide drinking water is fed in a tap line to a tap; 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 connecting 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) opposite the connecting piece (21) has a supporting bottom (22), 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. 15 ···· «··· ······································································ · ··· ·· ··· 2. Apparatus according to claim 1, characterized in that the supporting floor (22) is stepped step-like and circular and annular concentric wings (23). 3. Apparatus according to claim 1 or 2, characterized in that the clear width (LI, 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 formed accordingly. 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. 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. 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. s Ü