EP3921479A1 - Drinking water system having a water withdrawal fitting - Google Patents
Drinking water system having a water withdrawal fittingInfo
- Publication number
- EP3921479A1 EP3921479A1 EP20702246.8A EP20702246A EP3921479A1 EP 3921479 A1 EP3921479 A1 EP 3921479A1 EP 20702246 A EP20702246 A EP 20702246A EP 3921479 A1 EP3921479 A1 EP 3921479A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- waterway
- valve
- connection
- drinking water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 232
- 239000003651 drinking water Substances 0.000 title claims abstract description 95
- 235000020188 drinking water Nutrition 0.000 title claims abstract description 93
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 238000009835 boiling Methods 0.000 claims description 20
- 238000003809 water extraction Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 239000002351 wastewater Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000010865 sewage Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 claims description 2
- 239000008235 industrial water Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 235000012206 bottled water Nutrition 0.000 abstract 2
- 239000013505 freshwater Substances 0.000 description 20
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005406 washing Methods 0.000 description 4
- 241001122767 Theaceae Species 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000003599 food sweetener Nutrition 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000003716 rejuvenation Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000003765 sweetening agent Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B1/00—Methods or layout of installations for water supply
- E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
- E03B1/048—Systems for collecting not used fresh water
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/08—Arrangement of draining devices, e.g. manual shut-off valves
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/04—Water-basin installations specially adapted to wash-basins or baths
- E03C1/041—Water-basin installations specially adapted to wash-basins or baths having provisions against scalding, e.g. temperature limiting devices, external covers
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/04—Water-basin installations specially adapted to wash-basins or baths
- E03C1/0411—Taps specially designed for dispensing boiling water
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/122—Pipe-line systems for waste water in building
- E03C1/1222—Arrangements of devices in domestic waste water pipe-line systems
- E03C1/1227—Arrangements of devices in domestic waste water pipe-line systems of pumps for facilitating drawing off
Definitions
- the present invention relates to a drinking water system with a water function unit for providing a drinking water prepared in terms of at least one functional property, hereinafter referred to as functional water, and with a water extraction valve which has a first connection, which is connected to the water function unit via a supply line, at least one to a Domestic water supply to be connected second connection for domestic water and an outlet, the outlet has two separate waterways, of which a first waterway for the output of functional water with the first connection and a second waterway for the output of service water via a control or mixing valve is connected to the at least one second port.
- a water function unit for providing a drinking water prepared in terms of at least one functional property, hereinafter referred to as functional water
- a water extraction valve which has a first connection, which is connected to the water function unit via a supply line, at least one to a Domestic water supply to be connected second connection for domestic water and an outlet, the outlet has two separate waterways, of which a first waterway for the output of functional water with the first connection and
- Kitchen fittings that are installed on a sink are used to draw water in the kitchen area.
- Most kitchen fittings have inlets for hot and cold water.
- the water temperature at the outlet is set using a mixer integrated in the fitting, which can be used to set the mixing ratio between hot and cold water.
- fittings are known on which, usually in addition to warm and cold water, boiling hot water can be issued, which can be used for cooking, washing up or for tea and coffee.
- the faucet thus acts as an additional kettle.
- a hot water heater is connected to an additional hot water inlet of the fitting.
- the hot water is therefore usually output via a separate outlet, but at least the hot water function is actuated via a valve which is separate from the mixing valve for hot / cold water. It is also known that with a water dispensing fitting, via which either warm / cold water or hot water can be dispensed, separate water paths are provided to the mouth of the spout.
- a valve is described in which there is an inner water path for boiling water and an annular outer water path for mixed water.
- fittings are also known via which, in addition to hot and cold water, CO2-enriched or cooled drinking water can be output that is provided by a corresponding functional unit to be installed under the work surface.
- drinking water prepared with different functional properties is to be output via a fitting, for example first boiling water and then drinking water enriched with CO2 or cooled via the same waterway, it is disadvantageous that the drinking water with the corresponding functional property is initially in the waterway preceding drinking water supply is located. In order to avoid this, separate outlets or separate waterways would have to be provided in a common outlet for drinking water with different functional properties, which is undesirable for design reasons and reasons of space.
- the present invention has set itself the task of providing a drinking water system and a method for providing a with regard to at least one function of prepared drinking water which avoids these disadvantages.
- a controllable emptying device connected to the supply line leading from the water function unit to the water extraction valve is provided to drain the first waterway of the valve after a reference of functional water to the water extraction valve via the supply line.
- the water function unit can provide drinking water with different functional properties for a user via the water extraction fitting.
- the term "functional property" preferably and not exclusively includes:
- Different temperature drinking water such as B. chilled drinking water, drinking water at room temperature, heated drinking water or boiling drinking water;
- a flavored and / or colored drinking water such as.
- B. a drinking water mixed with a sweetener; and - An extract-containing drinking water, preferably an extract-containing and temperature-controlled drinking water such.
- B. a coffee-containing drinking water or a tea-containing drinking water.
- a plurality of such water function units are preferably provided, which are connected to the water extraction fitting via a common supply line.
- This drinking water which has been prepared with regard to different functional properties, can thus be fed to a water intake valve via a common feed line.
- Drinking water with a special functional property can now be selected and drawn from the water tap.
- the waterway of the outlet can be emptied via the supply line using the controllable emptying device.
- drinking water mixed with CO 2 can first be drawn from the water withdrawal valve. Any remainder of the drinking water that has been mixed with CO 2 in the supply line is removed from the common supply line after it has been drawn. Tempered drinking water can be obtained in a direct connection without the residual amount of carbon dioxide-mixed drinking water remaining in the common supply line reaching the water extraction valve.
- the water function unit preferably and not exclusively comprises a hot water heater, a water cooler, a filter unit, an infuser, a mixer, a brewing unit, a gassing unit, preferably for pressurized gassing (CC> 2 bubbler), and / or other water functions known to those skilled in the art tion units.
- the mixer is preferably designed to add flavoring and / or coloring agents to the drinking water.
- the infuser is especially designed to provide drinking water containing extract.
- the brewing unit is preferably designed to provide an extract-containing and temperature-controlled drinking water, in particular coffee or tea.
- the gasification unit is preferably designed to provide drinking water mixed with gas.
- the emptying device can be designed as a valve which is provided between the supply line and a sewer line.
- the valve is used to emptying the supply line opened by a control device of the drinking water system.
- the emptying device can be controlled and opened in a simple and efficient manner by means of such a valve. By opening the valve, the liquid can be emptied from the common supply line in the waste water line - and the valve can then be closed again.
- a solenoid valve is preferably used as the valve.
- controllable valves such as preferably and not restrictively pneumatic valves, electrical valves, screw valves and other controllable valves known to those skilled in the art.
- the control device can comprise, for example and not limited to, an integrated circuit or a microcontroller.
- the emptying device can have a pump, in particular a water jet pump.
- a pump in particular a water jet pump.
- the supply line can be emptied very quickly so that the system is immediately ready for a new water supply.
- the use of a water jet pump in the emptying device is particularly advantageous because the water jet pump does not need a drive and no power connection is required and the outlet can be emptied by passing a short flow of water through the water jet pump.
- the amount of water required to empty the spout essentially corresponds to the volume of water to be sucked back from the spout.
- water jet pumps are particularly low-maintenance and therefore also cost-saving.
- the emptying device comprises a Venturi nozzle which is arranged between a supply valve to be connected to a water inlet and an emptying valve to be connected to a discharge line, and in which a suction line opening into the Venturi nozzle is connected to the supply line.
- the reference valve and the drain valve can preferably be designed as solenoid valves.
- the reference valve can be arranged on a water supply, for example a fresh water line. By opening and closing the reference valve and the drain valve, water, for example fresh water from the fresh water line, can flow through the Venturi nozzle. This creates a suction on the suction line and over this is generated in the supply line, which can be used to empty the waterway in the outlet via the supply line.
- the water extraction fitting can be designed in such a way that it outputs normal service water in addition to functional water.
- a normal control valve water tap is provided on the fitting for the domestic water.
- the process water is water z. B. from the public water supply understood which lower hygiene standards than drinking water must suffice conditions. In many countries, water from the public water supply has to be sterilized or filtered before it can be used. Of course, the service water can also be hygienically safe drinking water.
- Process water within the meaning of the invention is typically used for washing dishes, washing hands, cleaning work, rinsing or cooking, while water used for consumption is taken from the connection for functional water.
- the water extraction valve can also have a hot and cold water connection as a second connection, which is used to output mixed service water via the mixing valve, for. B. a conventional Einhe belmischer, are connected to the second waterway. In this case, a desired water temperature can be set when drawing off domestic water.
- the separate water paths of the faucet for functional water on the one hand and service water on the other run parallel to each other in the outlet and open at its mouth.
- the second waterway preferably has a downwardly pointing - possibly also obliquely downwardly white - mouth opening at its end, while the first waterway protrudes beyond the mouth opening of the second waterway or is extended beyond this, and thus ends below this. In this way it is avoided that when drinking water is sucked back from the second waterway, no process water can be sucked in from the first waterway.
- the first waterway is designed as an inner waterway and the second waterway away in a ring around the first waterway.
- the first waterway can, for example, be a hose or pipe made of food-safe plastic, silicone or stainless steel running inside the outlet, while the outer waterway is formed by the outlet itself. This has the additional advantage that the outlet is isolated from the inner waterway by the outer waterway, so that the outlet is not excessively heated when boiling water is withdrawn via the inner waterway, so that there is a risk of scalding.
- a mouthpiece is preferably arranged at the end of the outlet and forms the mouth opening of the outlet.
- the mouthpiece preferably has a first, inner jet regulator, which is in fluid-conducting connection with the first waterway, and which is taken up by the mouthpiece such that it is in fluid-conducting and away from the second water-tight connection with the inner waterway.
- the mouthpiece has a second jet regulator which is arranged in a ring around the first jet regulator and is in fluid-conducting connection with the second waterway.
- a jet regulator is a nozzle that is attached to the outlet of a water outlet fitting in the kitchen or bathroom area.
- the jet regulator standardizes, widens and slows down the water jet that emerges from the fitting. As a rule, air is added for this purpose.
- jet regulators When using jet regulators, the amount of water required to wet surfaces such as washing and washing up can be reduced.
- the inner, first jet regulator protrudes downwards beyond the outer, second jet regulator, for example by an overhang of 2 to 6 mm.
- This simple constructive measure ensures that no boiling water can get from the inner waterway into the outer waterway and remain there. There is therefore no risk of a user being scalded when dispensing normal mixed water if boiling water has been drawn off shortly beforehand. In addition, it ensures that when functional drinking water is sucked back, no process water from the outer waterway gets into the inner so that a contamination of drinking water with service water would occur.
- the waterways for service water and boiling water can also be arranged side by side. This results in a double outlet with two parallel waterways.
- the inner jet regulator has an essentially cylindrical housing with an inlet opening and an outlet opening.
- a swirl generating section arranged in the area of the inlet opening with an essentially helical flow guide for the rotational acceleration of a flowing water stream, a relaxation zone following the swirl generating section in which the rotationally accelerated water stream can flow under centrifugal effect in the area of the housing inner wall, and a guide section, in which the rotational movement of the water flow is braked and this is guided in the longitudinal direction, is provided.
- a jet regulator is created that is equally suitable for dispensing boiling water and water containing CO 2 .
- the jet regulator has a laminar jet regulator section which is arranged in the area of the outlet opening and is designed to output the water flow as a laminar jet.
- a laminar jet regulator which can be used here in combination with the explained cyclone design, is well known for conventional fittings.
- Such a laminar jet regulator section can be formed out, for example, by a plurality of flow channels arranged next to one another and running in the axial direction.
- the laminar water jet flows out through this outlet-side section without noticeable pressure, so that the water does not splash.
- Other designs for a laminar jet regulator such as a grid or sieve arrangement, perforated disk arrangement or the like, can also be considered for the laminar jet regulator section
- the guide section has a plurality of longitudinal ribs which are arranged on the inner wall of the housing and preferably widen in their radial extent in the flow direction. Through these longitudinal ribs a gradual deceleration of the rotational movement of the water flow takes place and this is guided in the axial direction, following the rib course, preferably up to the laminar jet regulator section.
- the relaxation zone is preferably designed as a free zone in which the rotationally accelerated water flow can flow under the effect of centrifugal force along the inner wall of the housing. It is of course also possible that the named ribs from the following guide section extend with further tapering of their radial extension into the relaxation zone. In this case, the water flow could not flow completely along the inner wall of the housing and would already be slowed down slightly in the relaxation zone in the edge area - the function of the jet regulator and above all the relaxation zone, in which a cyclonic flow can develop, would still be available.
- the emptying device (22, 42) is connected to a drainage device.
- the drainage device has a collecting container, a drainage connection arranged on the bottom side of the collecting container and to be connected to the sewage line, a drainage connection with the drinking water System-connected inlet connection, which opens into the collecting container via a free drip path, and a pump assigned to the collecting container, which is designed to empty back-dammed liquid in the collecting container via the drain connection into a connected, higher-lying waste water line.
- the drinking water system which is to be protected from contamination by wastewater, therefore flows into the collecting vessel with the drain connection via a free drip path.
- the free drip path allows water to enter the collecting tank from the drinking water system, but not the other way around.
- the free drip section can preferably be from 0.5 cm to 10 cm long, the length dimension of the free drip section being based on the distance between the inlet connection and an upper level of the collecting container. In a particularly preferred embodiment, the free drip path can be about 2 cm long.
- the pump assigned to the drainage container ensures that the liquid that has accumulated in the collecting container can also flow to an on-site siphon connection of the sewage pipe located above the collecting container or be conveyed to it.
- the drain device can be installed at any point with respect to the on-site siphon connection. It is not only possible to position the collecting container below the siphon connection, but it can also be installed further away from the siphon connection.
- the drainage device has a level meter for measuring a level of liquid backed up in the collecting container.
- a drainage device with a level meter can advantageously detect whether or how much liquid is in the collecting container.
- the drain device has a control circuit which is formed to activate and deactivate the pump as a function of the liquid level measured by the level meter.
- a control circuit preferably comprises a control device, such as, preferably and not limited to, an integrated circuit or a microcontroller.
- the pump can advantageously be activated automatically and also deactivated again, which results in lower energy consumption and thus in cost savings for operating the pump.
- control circuit can be designed such that it activates the pump when an upper fill level is reached and deactivates it when it falls below a lower fill level.
- the lower level describes a liquid level within the collecting container, which comprises a small volume of liquid compared to the upper level.
- the upper level denotes a liquid level within the collecting container, which is preferably below the free drip path.
- the collecting container By activating the pump when the upper level is reached, the collecting container can be prevented from overflowing by pumping out the liquid in it in good time.
- a further advantageous development of the drain device provides that it has a check valve which is arranged between the pump and the waste water line, preferably a ball check valve, a Tel lerr check valve, a check valve or other check valves known to those skilled in the art.
- the check valve is preferably designed to prevent wastewater from flowing back in the direction of the pump. Such a check valve can advantageously prevent damage to the pump from flowing back wastewater.
- the drinking water system comprises a hot water heater, in particular a boiling water heater, which has an overpressure valve to allow the water that expands when heated to escape in a controlled manner, then it can be provided that the overpressure valve is also connected to the inlet connection of the drainage device.
- Figure 1 shows another embodiment of a drinking water system with a
- Figure 2 shows an embodiment of a drinking water system with two water functional units and a draining device with Venturi nozzle
- Figure 3 shows an embodiment of a drinking water system with Wasserentnah mearmatur, water function unit and emptying device.
- FIG. 4 shows an exemplary embodiment for a water extraction fitting with a jet regulator integrated in the mouthpiece
- FIG. 5 shows an enlarged section through the mouthpiece from FIG. 3,
- FIG. 1 shows a drinking water system 1 with a water function unit 2, a drain device 3 and a water withdrawal valve 17.
- the water function unit 2 is a hot water heater 4, which is fluidly connected via a line section 18 to a common supply line 19.
- the hot water heater 4 is connected to an inlet connection 6a of a drain device 3 via the pressure relief valve 5.
- a shut-off valve 20 is arranged between the hot water heater 4 and the line section 18.
- a connecting element 21, for example a T-piece, is located between the line section 18 and the common supply line 19.
- the connecting element 21 is also connected to an emptying device 22 which is arranged between an inlet connection 6b of the drainage device 3 and the connecting element 21 or the common feed line 19.
- the drainage device 3 comprises a collecting container 7.
- the collecting container 7 comprises a drainage connection 8 which is arranged on the ground on the collecting container 7.
- the drain device 3 comprises a level meter 9, which in the example shown here on the wall of the top collecting container 7 is arranged.
- the drain connection 8 is connected to a sewer line 12 via a pump 10 assigned to the collecting container 7. In the example shown here, the sewer line 12 is higher than the collecting container 7, counter to the gravitational force 13.
- the drinking water is prepared onseigenschaft in the water function unit 2 with regard to a function.
- the water function unit 2 comprises a hot water heater 4, which heats the drinking water.
- the hot water heater 4 is, for example, a boiling water heater which heats the drinking water to approx. 100 ° C.
- the overpressure valve 5 opens after a certain threshold pressure is exceeded, whereby water and / or the steam from the hot water heater 4 penetrates into the inlet connection 6 of the drainage device 3 and via a free drip path 11 into the collecting container 7 got.
- the level of the liquid in the collecting container 7 is detected by the level meter 9. After the liquid within the collecting container 7 has reached an upper level 14, the level meter 9 activates the pump 10 assigned to the collecting container 7.
- the now activated pump 10 empties the liquid that has accumulated inside the collecting container 7 through the drain port 8 into the one above it Waste water pipe 12, and through the waste water pipe 12 into a siphon connection 15 arranged on the building side. After the lower level 16 has been reached, which is detected by the level meter 9, the level meter 9 sends a signal to deactivate the pump 10, which deactivates it and the Entleervor transition is ended.
- a check valve 23 is provided between the pump 10 and the sewer line 12 (bottom in FIG. 1).
- the check valve 23 serves to prevent a return of sewage from the sewer line 12 into the pump 10 to ver.
- the shut-off valve 20 is, for example, a controllable valve. Opening the shut-off valve 20 causes drinking water to be prepared with regard to a functional property from the water function unit 2 via the line section 18 into the common feed line 19 and via it into the water extraction fitting 17. After drinking water has been drawn from the water intake Tur 17, the shut-off valve 20 is closed and the draining device 22 is controlled. The emptying device 22 is activated by this control, whereby an emptying process is started. By starting the emptying process, the common supply line 19 is emptied into the drainage device 3 via the inlet connection of the drainage device 6b. In addition, other elements connected to the common supply line 19, such as the water extraction fitting 17, the connecting element 21 and the line section 18, can be emptied by the activated emptying device 22.
- FIG. 2 shows a drinking water system 1 with two Wasserfunktionseinhei th 2a, 2b, with a drain device 3 and an emptying device 22.
- the first water function unit 2a which is shown in Figure 2 bottom left, is a hot water heater 4.
- the hot water heater 4 is til via the shut-off valve 20a is connected to the line section 18a, which in turn is connected via the connecting element 21a to the common supply line 19 and above it to the water withdrawal fitting 17.
- a fresh water line 24 is also connected to the hot water heater 4 via a connecting element 21b.
- the hot water heater 4 is connected to a further connecting element 21c via the connecting element 21b and the line section 18b.
- the connecting element 21c is connected to a line section 18d which opens into an inlet closure of the drainage device 6a (downward in FIG. 2).
- a pressure relief valve 5 is arranged on this inlet connection of the drain device 6a.
- the connecting element 21 c is also connected to the reference valve 25 (to the right in FIG. 2) and above it to a Venturi nozzle 26 and an emptying valve 27.
- the drain valve 27 also opens into the drainage device 3 via an inlet connection 6b.
- the Venturi nozzle 26 is connected to the connecting element 21a via the line section 18c and via it to the common supply line 19.
- a water filter is also located in the feed line of the water function unit 2a connected to the fresh water line, so that filtered fresh water is provided at the water function unit 2a.
- a further water function unit 2b for example a CC> 2 bubbler or a cooling unit.
- the water functional unit 2b is connected to the fresh water line 24.
- the water function unit 2b is connected to the shut-off valve 20b and above it to the connecting element 21a, which in turn is connected to the common feed line 19.
- the hot water heater 4 is filled with fresh water via the fresh water line 24, which is heated to approximately 100 ° C. therein. If too high a pressure builds up in the hot water heater 4, this pressure can act on the pressure relief valve 5 connected to it via the connecting element 21b, the line section 18b and the connecting element 21c when the loading valve 25 is closed. This pressure action on the overpressure valve 5 opens the overpressure valve 5, which means that cold water can escape into the inlet connection 6a and into the collecting container 7 via the free drip path 11.
- the drinking water heated to the boil can pass through the line section 18a and the connecting element 21a into the common supply line 19 and via it to the water extraction valve 17.
- the shut-off valve 20a is closed and an emptying process is started.
- the emptying process is started, for example, by activating a controllable emptying device 22.
- the reference valve 25 and the Ent emptying valve 27 are opened. This enables fresh water to flow through the Venturi nozzle 26.
- the fresh water first flows through the fresh water line 24, into the connecting element 21b and above it into the line section 18b and via the connecting element 21c and the open reference valve 25 into the Venturi nozzle 26 and through the open Ent empty valve 27 into the inlet connection 6b and above it into the drainage device 3.
- the Venturi nozzle 26 has a taper in its upper region, into which the line section 18c opens. The fresh water, which reaches the Venturi nozzle 26 via the opened reference valve 25, is accelerated due to the rejuvenation and generates an underpressure or suction due to the Venturi effect at the laterally opening line section 18c.
- both the line section 18c and the elements connected to the connecting element 21a, such as the line section 18a, the common feed line 19 and the Wasserent Spotifyar matur 17, through the open drain valve 27, into the inlet connection 6b and thus into the drain device 3 can be emptied.
- the reference valve 25 and the emptying valve 27 are closed and the fresh water flow through the Venturi nozzle 26 is thus ended.
- drinking water that has been prepared with regard to a different functional property can now be obtained, for example by opening the shut-off valve 20b.
- the shut-off valve 20b By opening the shut-off valve 20b, fresh water flows from the fresh water line into the water functional unit 2b connected with it.
- the drinking water from the Wasserfunktionsein unit 2b now reaches the common supply line 19 and the water withdrawal valve 17 via the connecting element 21a.
- the shut-off valve 20b is closed again and the common supply line 19, as well as the attached closed elements, as previously mentioned, emptied.
- filtered fresh water can be obtained directly from the fresh water line 24 at the water extraction valve 17.
- This fresh water is taken from the fresh water line 24 via the water filter (not shown), the connecting element 21b, the line section 18b, the connecting element 21c, the reference valve 25 and via the Venturi nozzle 26 in the line section 18c and through the connecting element 21a in the common supply line 19 and the water extraction valve 17 connected to it.
- the pipeline path takes place in the opposite direction via the venturi nozzle 26, so a separate solenoid valve can be saved for the supply of filtered water.
- the water outlet fitting shown in the exemplary embodiments can also each have a connection for a water supply line for the public water supply, so that in addition to “functional water”, service or mixed water can also be dispensed at the fitting.
- the additional connection and a corresponding control or mixing valve is not shown in FIGS. 1 and 2 for the sake of clarity.
- FIG. 3 an embodiment of a water dispensing fitting 30 is shown.
- the fitting 30 has an outlet 31, a single-lever mixer valve 32 which is actuated via an operating lever 33, and an operating element 34 with which the output of functional drinking water can be controlled.
- the outlet has two separate waterways, namely an inner waterway for functional water, which is specified by an inner pipe 35 running inside the outlet, and an outer waterway 36, which runs around the inner pipe 35, for normal mixed water.
- waterways 35, 36 can of course also be designed as two pipelines running parallel to one another in the outlet 31 within the scope of the invention.
- a mouthpiece 37 is inserted at the outlet opening of the outlet 31. This has an annular outer mouth opening 38 through which water exits from the outer waterway 36.
- An extension 35 ‘of the inner tube 35 extends through the mouth opening 38 and ends a few millimeters below the mouthpiece 3 or the outer mouth opening 38.
- the fitting 30 has three connections for feed lines, namely a feed line 39 coming from a water function unit 40, as well as feed lines 41 a, 41 b for hot and cold water.
- feed lines 41 a, 41 b for hot and cold water.
- the supply line 39 there is an emptying device 42, via which the inner pipe 35 can be emptied after functional drinking water has been drawn off.
- the emptying device 42 can, as in the first exemplary embodiment, be a directional valve which can be opened in order to connect the inner pipe 35 to a sewer line via the supply line 39.
- the emptying device 42 additionally comprises a pump by means of which the inner pipe 35 can be sucked empty after a product has been drawn off. The overhang of the extension 35 'of the inner tube 35 beyond the outer mouth opening 38 avoids that in this case accidentally remaining or dripping in the outer waterway 36
- Process water can be sucked in.
- the control of the emptying device 42 takes place via a control device with which the water function unit 40 - or possibly several water function units - is controlled. As soon as functional water has been drawn off, the control device activates the emptying device, so that the waterway 35 in the outlet 31 is emptied.
- the hot and cold water lines 41 a, 41 b are connected to the mixing valve M isch valve 32 and via this to the external waterway 36, so that normal water (industrial water) can be turned on and tempered in a conventional manner via the operating lever 33.
- the operating element 34 can also be designed to operate a mechanical valve built into the fitting body 30a, via which functional water can be output from the water function unit 40.
- the operating element 34 is designed as an electrical rotary / tip switch with which a control device of the water function unit 40 can be controlled via an electrical signal connection (not shown) in order to obtain drinking water with a certain functional property from the water function unit.
- a rotary / tip switch that can be used as an operating element 34 within the scope of the present invention is described, for example, in WO2016 / 131500 A1, to which reference is made here in full to avoid unnecessary repetition.
- FIG. 1 Another embodiment of a multifunctional fitting is shown in FIG. Identical and identically acting components are denoted by the same reference numerals as in FIG.
- the fitting 30 shown there has a fitting body 30a with an integrated mixing valve 32, which is operated via an operating lever 33 in the manner of a single-lever mixer attached to the side of the fitting body 30a in order to dispense cold, hot or mixed water.
- an operating lever 33 On the opposite side of the fitting housing 30a there is another operating element 34, wel Ches is designed as an electrical rotary / tip switch. About this can Other functions of the fitting 30 can be controlled, such as the output of boiling water from a separate, connected to the fitting Ko chendwasserhneer, the output of chilled and / or CO2 enriched water or the output of filtered drinking water.
- the outlet 31 which extends in an arc shape up to a mouthpiece 37. Both mixed water and “functional water” such as some boiling water or CC> 2-enriched water are output via the outlet 31.
- the outlet has two coaxially arranged waterways 35, 36, namely, as shown in FIG. 5, an inner waterway 35 for “functional water” and an outer waterway 36 for normal service or mixed water.
- the inner waterway 35 is formed by an inner pipe or hose running in the interior of the outlet 24.
- the inner jet regulator 46 forms the extension of the inner tube 35 and is connected to the inner waterway in a fluid-conducting manner.
- the connection 46 between the inner tube 35 and the jet regulator 45 can be realized here for example by a screw connection or a crimped connection.
- the inner jet regulator 45 is shown only schematically and has a swirl generating section 47, a relaxation zone 48 and a guide section 49. Examples of the specific structure of the jet regulator can be found in the applicant's prior application DE 10 2019 1 17 381.7, Reference is made here in full to avoid unnecessary repetition.
- the outer jet regulator 50 which is arranged in a ring around the inner jet regulator 45, is connected in a fluid-conducting manner to the outer waterway 36 and is thus flowed through via the lever mixer 33 when service water or mixed water is dispensed. Between inner and outer waterway 35,
- the inner jet regulator 45 projects a few millimeters downward beyond the mouthpiece 37. In this way, it is prevented that boiling water from the inner waterway 35 enters the outer waterway 36 or vice versa.
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Devices For Dispensing Beverages (AREA)
- Apparatus For Making Beverages (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019102945 | 2019-02-06 | ||
PCT/EP2020/051564 WO2020160917A1 (en) | 2019-02-06 | 2020-01-23 | Drinking water system having a water withdrawal fitting |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3921479A1 true EP3921479A1 (en) | 2021-12-15 |
Family
ID=69326505
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20702420.9A Withdrawn EP3921481A1 (en) | 2019-02-06 | 2020-01-23 | Drainage device for connecting a drinking water system |
EP20702246.8A Withdrawn EP3921479A1 (en) | 2019-02-06 | 2020-01-23 | Drinking water system having a water withdrawal fitting |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20702420.9A Withdrawn EP3921481A1 (en) | 2019-02-06 | 2020-01-23 | Drainage device for connecting a drinking water system |
Country Status (2)
Country | Link |
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EP (2) | EP3921481A1 (en) |
WO (2) | WO2020160917A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3901104A1 (en) * | 2020-04-24 | 2021-10-27 | Aquis Systems AG | Device for the treatment of water with holder device |
DE202020106196U1 (en) * | 2020-10-29 | 2022-02-01 | Wwb Sweden Ab | Flushing device and water outlet fitting |
DE202021104440U1 (en) * | 2021-08-19 | 2021-09-03 | Gebr. Kemper Gmbh + Co. Kg | Drinking water installation |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4124605A1 (en) * | 1991-07-25 | 1993-01-28 | Manfred Schneider | Portable hygiene installation with shower - has system circulating used water selectively replaced by clean water, without interrupting showering |
WO1994020784A1 (en) * | 1993-03-05 | 1994-09-15 | Sheringham Investments Pty. Ltd. | Dispenser for hot and cold water |
US6941971B1 (en) * | 2004-02-27 | 2005-09-13 | Yu-You Hsien | Dual use stand type faucet used in kitchen |
CN105026658B (en) | 2012-12-20 | 2017-11-10 | 弗兰卡(中国)厨房系统有限公司 | A kind of liquid discharge device |
AT514034B1 (en) * | 2013-03-14 | 2019-08-15 | Viterma Handels Gmbh | Drain element for shower tray |
US20170370492A1 (en) | 2015-02-16 | 2017-12-28 | Oblamatik Ag | Valve for controlling the water flow in a sanitary line |
US10640393B2 (en) * | 2016-12-29 | 2020-05-05 | Whirlpool Corporation | Faucet conversion system |
DE102017203112A1 (en) * | 2017-02-27 | 2018-08-30 | BSH Hausgeräte GmbH | Household appliance for dispensing liquid with a hot water system as a disinfection device for a cooling water system |
-
2020
- 2020-01-23 EP EP20702420.9A patent/EP3921481A1/en not_active Withdrawn
- 2020-01-23 EP EP20702246.8A patent/EP3921479A1/en not_active Withdrawn
- 2020-01-23 WO PCT/EP2020/051564 patent/WO2020160917A1/en unknown
- 2020-01-23 WO PCT/EP2020/051561 patent/WO2020160916A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO2020160916A1 (en) | 2020-08-13 |
WO2020160917A1 (en) | 2020-08-13 |
EP3921481A1 (en) | 2021-12-15 |
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