DE2106491A1 - Device for the saturation of liquids with gas, especially for the production of sparkling water - Google Patents

Description

Franco TREHOLADA, Hailand, Via Console Marcello io (Italy)

"Device for the saturation of liquids with gas, in particular for the production of sparkling water "

The present invention relates to a device with a double-acting, alternating piston pump for the saturation of liquids with gas, in particular for the production of sparkling water ₃ which can then possibly be used for the preparation of lemonades, among other things.

109838/0178

The device with a double-acting piston pump should

serve to maintain a constant pressure in the absolutely SprudelrbehRlter so this Sprudelvrasser ^Toggle: ': üiließend for the metered addition possible ν of syrup. .ά. can be used. The usual devices of double-acting piston pumps have - as is known - the! Feelrteil; that the pressure in the sparkling water tank fluctuates when the pump is reversed, these pressure fluctuations also due to the irregular operation of the pump as a result of the pressure equalization between pump and B. iiold and negatively affect the exact dosage of vo.it-Dpy-.idelwasser and syrup.

Another purpose of the present invention, the initial "W 'reitung saner particularly for small and medium consumers suitable device, which is simple and inexpensive to manufacture, easy to maintain and space saving.

The device for the saturation of liquids with Sas, in particular for the production of sparkling water, is according to of the present invention characterized in that the for the actuation of the double-acting piston pump, the the water pumps into the saturation chamber, the propellant gas used is CO «released directly into the atmosphere to prevent pressure fluctuations to avoid in the saturation cycle.

109838/0178

The device according to the present invention is particularly characterized in that it is double-acting and through Propellant gas C0 "driven" taken from a suitable source Piston pump contains at least one sparkling water tank and devices that switch the pump off immediately or restart it set when the sparkling water in the container exceeds or falls below a preset level.

The device according to the present invention is also characterized in that the reversal of the pump is effected by mechanical or electrical devices that be controlled directly by the alternating movement of the pump and let the pump work again, indifferent in which position the pistons were stopped due to the shut-off of the propellant gas.

The purposes and characteristics of the invention can furthermore be derived from the following description and the claims can be removed.

A preferred execution from sForm of the present invention is merely shown as an example in the drawing; the figures show:

1 shows a function diagram,

2 shows a longitudinal section of the pump with the piston in the upper end position,

109838/0178

3 shows a partial section, similar to the longitudinal section of the pump shown in FIG. 2, but with the piston in the first

Phase of their downward movement,
Fig. M- a partial section, similar to Fig. 2, but with the piston in the second phase of its downward movement, shortly before

the mechanical actuation of the reversing valve, FIG. 5 is a partial section, similar to FIG. 2, but with a piston in their lower end position and with already actuated

Reversing valve,
^ Fig. 6 is a partial section, similar to Fig. 2, but with the piston in the first phase of its upward movement,

FIG. 7 shows a section along line VII - VII in FIG. 2, FIG. 8 shows a section along line VIII - VIII in FIG. 5 9 and 10 show schematic sections of the delivery control valve

in the open and closed position, FIGS. 11 and 12 are schematic sections of the outlet control valve in open or closed position.

fc As can be seen in particular from FIG. 1, the Device essentially consisting of a pump 1, a saturation chamber 2 and a sparkling water tank 3.

The pump 1 (FIGS. 2-8) consists essentially of a housing H which is sealed by the seal 5, built on the base 6 and closed at the top by the cover 7. In the middle of the housing 4, a partition 8 is provided with the seal 9, through the central bore a

109838/0178

Hollow rod Io, on which the upper piston runs, sealingly and the lower piston 12 with the associated seals are rigidly attached. The upper piston 11 divides the corresponding compartment in the two chambers 13 and 14 with different and variable capacities, wherein the upper chamber 13 (delimited by parts 4, 7 and 11) for the gas and the lower chamber 14 (delimited by the Parts 4, 8 and 11) for the water. The lower piston 12 also divides the lower compartment into one upper chamber 15 (delimited by the partition 8 and the pump housing 4) for the water and into a lower chamber 16 (delimited by the pump housing 4 and the base 6) for the gas.

In the base 6 there is a recess 17 which is in direct connection with the lower chamber for the gas 16 stands and in which the generally designated 18 Um-control valve is located. In the recess 17 (Figures 7 and 8) three lines open; the first line 19 is connected to the propellant gas source CO «, the second line 20 is with connected to the upper chamber for the gas 13 and the third line 21 serves as an outlet line to the atmosphere.

The valve 18 is mechanically controlled directly by the alternating movement of the pistons 11 and 12 and provides the supply one chamber, while the propellant gas contained in the other chamber is released.

109838/0178

Above the recess 17 and on the same axis as the hollow rod Io there is an adjusting ring 22 which has a hollow shaft 23 with the four seats 24 for the ball 25 in it Holds position, with the seats arranged so that the balls move in the transverse direction but do not fall out can. In the hollow shaft there is another shaft 26, the lower end of which is rigid with one part of the Valve 18 forming part and described below

27 is connected, while the upper end of the shaft together with a sleeve freely arranged in the hollow rod Io

28 acts, in whose suitably shaped lower part 28 Mas profile upper part 26 »of the shaft 26 engages. At the height of the middle part the shaft 26 are the two annular grooves 29 and 29 ', which interact with the balls 25 and with the help of Bush 3o hold the inner shaft 26 in the position reached. Around the circumference of the sleeve 28 there is a compression spring 31, which acts against the rib 28 "located on the top of this sleeve.

On the lower piston 12, an annular part 32 is freely arranged, which cooperates via the sleeve 35 with the spring 31 and via the stop 32 ^f with the sleeve 3o. The part 27, which is non-positively connected to the inner shaft 26, has the two lugs 27 ′, which are freely provided by the adjusting ring 22 at the level of the lower part of the shaft 26

* ·
Openings 33 can slide (Figures 7 and 8).

109838/0178

As can be seen in FIGS. 2, 5 and 7 with pistons 11 and 12 in their upper end position, the part 27 does not touch the bottom of the recess 17, as a result of which the gas coming from the line 19 is guided into the line 2o; lines 19 and 2o are connected to one another via valve 18. The gas enters the upper chamber 13 and causes the pistons 12 and 13 to move downwards as well as the release of the gas contained in the lower chamber 16 into the atmosphere, namely through the openings 33 (shown with the line 33 'in FIG. 1 ), the recess 17, the line 21, the valve 52 and the line 21 '. Before the pistons reach their lower end position, the ring-shaped part 32, which interacts freely with the lower piston 12, briefly presses with its stop 32 'against the upper parts of the lugs 27' of the part 27, namely immediately after the lower part 28 'of the sleeve 28 The upper part of the sleeve 3o (Fig. 3) has touched and has started to push it down. The annular part 32 is held by the downward movement of the lugs 27 'of the part 27 and cannot follow the further downward movement of the piston 12 ₃ because at this moment the balls 25 are held in the groove 29 by the inner thickening 3o' of the sleeve 3o and block the shaft 26. During the further downward movement, the annular part 32 tensions the spring 31 over the sleeve 35 until the inner thickening 3o 'of the sleeve 3o (which is pushed down through the part 28 of the sleeve 28) pushes the balls 25 out of the groove 29

109838/0178

pushes out, whereby the inner shaft 26 together with the part 27 by the action of the spring 31 (Fig. 5) can move down. The immediate mechanical reversal of the valve 18 has thus taken place, and the Balls 25 are free in the groove 29 'of the inner shaft 26..

Accordingly, the pistons 11 and 12 and the part 27 are in their lower end position (Figures 5, 6 and 8), whereby the gas coming from the line 19 flows into the recess "17, through the openings 33 (line 33 'in 1) enters the lower chamber 16 and the upward movement of the pistons 11 and 12 as well as through the over the valve 18 interconnected lines 2o and the outlet of the one located in the upper chamber 13 Causes gas into the atmosphere.

Before the pistons reach their upper end position, the ring-shaped part freely cooperating with the piston 12 presses ) 32 briefly with its approach 32 'against the lower part of the sleeve 3o (Fig. 6), which thereby moves upwards and with its thickening 3o 'abuts against the balls 25. During the further upward movement, the profile upper part 26 * engages of the inner shaft 26 into the shaped part 28 'of the sleeve 28, whereby the spring 31 as a result of the steady upward movement the sleeve 3o is stretched over the sleeve 35 until the inner thickening 3o 'of this sleeve removes the balls 25 from the groove 29' and with it the sudden upward movement of the inner shaft 26, which is no longer held by the balls 25

109838/0178 - 9 -

caused by the action of the spring 31; the instant one

mechanical reversal of valve 18 has thus taken place,

and the balls 25 are again free in the groove 29 (FIG. 2).

According to the details in Figures 7 and 8, there is Reversing valve essentially from the rectangular and freely sliding in the recess 17, which is also rectangular Part 27, which has a central circular opening 34- (Fig. 2), in which a special sealing valve is used. This valve consists of an annular outer part 36 with an outer diameter corresponding to the inner diameter of the circular opening 34, in which the two opposite parts 37 and 38 separated by an elastic seal 39, the part 37 washer and the part 38 is annular. The thickness of the assembly consisting of parts 36, 37 and 38 and 39 is slightly larger than the width "h" of the recess 17 and the parts are arranged so that the cavity or the cavity 4o of the valve is the free connection between the Lines 2o and 21 as well as the free flow of gas coming from line 19 into recess 17, when the part 27 is in its lower position (Fig. 8). In this position, the gas located in the recess 17 acts on the flat surface 37 * of the part 37 and thus presses the entire valve against the flat wall 17 * of the recess 17, whereby the desired seal is achieved. Located sees the piece 27 in its upper position (Fig. 7), so are

109838/0178 - ^lo -

- Io -

- The lines 19 and 2o directly connected to each other and the gas coming from the chamber 16 via the openings 33 can pass into the line 21 and into the atmosphere be left out. In this position, the sealing effect of the valve is mainly achieved in that the drive gas coming from line 19 at the same time acts on the bottom of the cavity 4o and is diverted by this against the elastic seal 39, which expands and the annular part 38 presses against the wall 17 'of the recess 17, whereby the desired seal is achieved.

According to Fig. 1, the water is the chambers 14 and 15 over the lines M-I connected to the supply network "R" and 41 'with the check valves 42 is supplied and arrives via lines 43 and 43 'to the check valves in the saturation chamber 2, whereby due to the special modes of operation of the pump 1, the emptying of a chamber during the filling of the other chamber takes place,

The water is in the saturation chamber over the schematically atomizer nozzle 45 shown and there by turbulence with the from the bottle "B" with reducing valve B ' and gas CCU flowing through line 46 into the top of the saturation chamber is mixed.

The sparkling water and the gas CO «are fed through a pipe 47 conveyed into the container 3, from which the sparkling water is then removed via the dip tube 48 and sent to the filling

109838/0178 - n -

- Xl -

Appendix U is forwarded. The container 3 is equipped with two gas outlet lines; the line 49 promotes the gas in this container to a gas supply control valve 51 and then to the Feed line 19, while the line 5o a part of this gas to the gas delivery control valve 51 to another arranged in the outlet line 21 gas outlet control valve 52 and - via the reducer 53 - to the outlet line 21 'promotes. The container 3 contains a correspondingly shaped float 54 which closes the line 5o when the sparkling water in the container has reached a certain height "L" (dashed line). In the illustrated In this case, the float 54 is equipped with a shaft 55 guided by parts 56 attached to the container, at its free end there is the seal 57, which can seal the opening of the line 5o tightly. The Height "L" of the sparkling water in the container to a certain fourth (solid lines) so becomes the float 54 is pulled down by its own weight and opens the above opening again.

When the container 3 is not full, the line 5o is open, whereby some of the gas in the container is counteracted the small pistons 58 and 5 ^ * of the valves 51 and 52 act can.

These pistons are thus raised against the force of the springs 59 and 59 ^f (see Fig. Io and 12) and allow the gas coming from the line 49 to flow into the conveying

109838/0178 - 12 -

line 19 (valve 51), while the gas to be ^{let out} passes from line 21 into line 21 f and can thus escape into the atmosphere.

The float 54 closes the line 5o as soon as the liquid in the container 3 reaches the level "L", whereby the small pistons 58 and 58 'are closed by their associated springs 59 and 59 * and the connection between the lines 49 and 19 is over the valve 51 (Fig. 9) and between the lines 21 and 21 ^f via the valve 52 (Fig. 11) are interrupted. The pump 1 is thus put out of operation, v / eil the valves 51 and 52 are closed as soon as the pressure in the line 5o has been reduced by the escape of the compressed gas into the atmosphere via the reducer 53 to such an extent that the springs 59 and 59 'can act on the respective pistons.

If the level of the liquid in the container decreases, the above-described condition is restored and the pump 1 starts immediately.

In the embodiment described here, the propellant gas taken from the container 3 via the line 49, but this propellant gas can of course also be taken from another source be, 3.B. from bottle "B" via a suitable one Management. In the embodiment described here, one has Furthermore, the Bruckgasventile 18, 51 and 5 2 are provided, but which are connected by a with the float ΐ · 4

109838/0178 - 13 -

Limit switch controlled solenoid valves can be replaced. This last solution is due to the associated Additional costs viewed as less beneficial. The use of a solenoid valve instead of the pressurized gas-controlled reversing valve 18 will of course change the mechanical parts associated with the pistons of the pump 1 draw without affecting the principle of the present invention.

Claims *.

-IH-

109838/0178

Claims (1)

Patent claims: 1. A device for the saturation of liquids with gas, in particular for the production of hot water with a double-acting, alternating piston pump, characterized _s that used as the drive for the double-acting piston pump (1) for supplying a saturation chamber (2) with water propellant gas (CO «) Is discharged directly into the atmosphere in order to avoid pressure fluctuations in the saturation cycle. 2. Device according to claim I _5, characterized by the following parts: a double-acting piston pump (1) driven by propellant gas (CCU) taken from a suitable source for the supply of at least one saturation chamber (2) with water, at least one sparkling water tank (3) and Devices (54, 55, 56, 57; 5o, 51, 52; 18) which switch off the pump (1) immediately or restart it when the sparkling water in the container exceeds or falls below a preset level. 3. Device according to claim 1, characterized in that the reversal of the pump movement is effected by devices (18) which are triggered directly by the reciprocating movement of the pump. 4. Device according to claim 1, characterized in that the pump of at least one in the connecting line 109838/0178 - 15 - arranged between the pump (1) and the sparkling water tank (3) or the independent propellant gas source (B) Valve (51 or 52) is controlled, this valve immediately interrupting the supply of propellant gas to the pump or again permitted if the sparkling water in the container (3) exceeds a certain height. or falls below. 5. Device according to claim 4, characterized in that the sparkling water container (3) is equipped with a line (5o) through which the compressed gas in this container holds the gas delivery control valve (51 or 5 2) open, the shut-off this line causes the closure of this gas supply control valve, for example by spring force. ' 6. Device according to claim 5, characterized in that the shut-off or the opening of the line (5o) is controlled by a float (5M-) arranged in the sparkling water tank. 7. Device according to claim 2, characterized in that the saturation of the water takes place by mixing and swirling the water with the gas simultaneously fed into the saturation chamber (2). 8. Device according to claim 3, characterized in that that a valve (18) is used to reverse the pump movement 109838/0178 " ¹⁶ " it is provided that suddenly brought from one position to the other position and vice versa by the force of a spring (31) will. 9. Device according to claim 1, characterized _? that the double-acting piston pump contains two outer chambers (13, 16) for the gas and two middle chambers (14, 15) for the water. Io. Device according to claim 8, characterized in that the valve (18) is located in a recess (17) which is directly connected to the lower pump chamber (16) for the gas and that in this recess a first line ( 19), a second line (2o) connected to the upper chamber for the gas (13) and a third line (21) provided for discharging the gas into the atmosphere open. 11. Device according to claim Io, characterized in that the valve (18) consists essentially of a rectangular part (27) which slides freely in the likewise rectangular recess (17) and has a central circular opening (3U) in which the actual valve is used, which consists of an annular outer part (36) with an outer diameter corresponding to the inner diameter of the circular opening (34) and has two opposite parts (37 and 3P) separated by an elastic seal, the Tc -il (37) washer- 109838/0178 - 17 - and the part (38) is annular. 12. Device according to claim Io and 11, characterized in "that the diameter of the two parts (37 and 38) was dimensioned so that a direct connection between the first line (19) and the second line (2o) at the valve in the first Position, and a direct connection between the second line (2o) and the third line (21) is established when the valve is in the second position. 13. Device according to at least one of the preceding claims, characterized in that the part (27) has lugs (27 ^f ) which protrude into the lower chamber (16) for the gas when the valve (18) is in the upper position, wherein around these approaches slots were provided which allow the free flow of the propellant gas from the recess (17) in the lower chamber (16) for the gas vice versa. 14 ·. Device according to at least one of the preceding claims, characterized in that the part (27) is rigidly connected to an inner shaft (26) which has devices for locking the part (27) in an upper and in a lower position. 15. Device according to claim 14, characterized in that the blocking devices consist of balls which engage in annular grooves (29 and 29 ') of the inner shaft (26) - 18 - 109838/0178 and are held in this position by a movable sleeve (3o). 16. Device according to at least one of the preceding claims, characterized in that the upper part of the inner shaft (26) acts together with a sleeve (28) which can slide freely in the hollow rod (lo) connecting the two pistons (11 and 12) the lower part (28 ') of the sleeve being shaped to cooperate with the upper profile part (26') of said inner shaft (26). 17. Device according to at least one of the preceding claims, characterized in that an annular part (32) is freely arranged on the lower piston (12), which cooperates with a compression spring (31) surrounding the sleeve (28) and a stop (32) ¹ ), which works together with the movable sleeve (3o). 18. Device according to at least one of the preceding claims, characterized in that the Viasserzufuhr in the middle chambers (I ¹ J-, 15) of the pump (1) connected to the water network (R) and equipped with check valves (42) lines ( 41, 41 '), while the drainage of the water from these chambers takes place via lines (43, 43) equipped with check valves (44) and opening into the saturation chamber (2). 109838/0178 " ¹⁹ " 19. Device according to at least one of the preceding claims, characterized ■> that the line (5o) for controlling the gas delivery control valves (51) and the outlet valves (52) with the line for discharging the gas into the atmosphere (21) is connected, namely via a reducer (53), which allows the reduction of the pressure in this line (5o) and the closing of said valves (51, 52), for example with the help of springs (59, 59 ¹ ), if the float (5M-) closes the inlet opening of said line (5o). 109838/0178 Blank page