EP0919777A2 - Wasserversorgungsanlage - Google Patents
Wasserversorgungsanlage Download PDFInfo
- Publication number
- EP0919777A2 EP0919777A2 EP98117502A EP98117502A EP0919777A2 EP 0919777 A2 EP0919777 A2 EP 0919777A2 EP 98117502 A EP98117502 A EP 98117502A EP 98117502 A EP98117502 A EP 98117502A EP 0919777 A2 EP0919777 A2 EP 0919777A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- water supply
- valve
- check valve
- hot water
- supply line
- 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.)
- Granted
Links
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
Definitions
- the control element in the thermostatic valve takes over a double function: on the one hand, it does exactly what it is also in the prior art as a thermostatic valve does, namely it delivers mixed water with a certain, preset temperature. On the other hand but controls the control element of the thermostatic valve in those times when no mixed water is withdrawn will, the direct flow from the hot water supply line to the cold water supply line in a further way described in more detail below.
- the check valve in the hot water has an opening pressure that is less than is about 0.05 bar. In this case it can be cheap Circumstances to generate the recirculation flow a separate pump can be dispensed with; a check valve with the specified small opening pressure also by a gravity-generated circulation flow open.
- the thermostatic valve should be closed when the hot water seat is closed a leak between the hot water connection and the cold water connection have less than 0.1 l / min at 3 bar is. This leakage is so small that outside the Opening times of the recirculation valve the cross flow between hot water and cold water supply lines is negligibly small and therefore acceptable.
- the second alternative is that in the cold water path lying check valve in its open position can be locked. In this open position, the desired one Recirculation flow from the hot water supply line to the cold water supply line.
- shut-off valve or the locking device is expedient the check valve in the position in which the check valve located in the cold water path is out of function, can be locked. So if the invention "Pseudo" circulation flow is desired the shut-off valve or the check valve lock brought into the locked position. It remains there, for example, until the catch again Hand is released. Then the check valve takes in the cold water supply resumes its normal function.
- the latching means the shut-off valve or the locking of the check valve are trained so that they are at a solve predetermined temperature so that in the cold water path check valve resumes its function can exercise. In this way you can - without any help an external energy source - the function of the thermostatic valve as a bypass valve to generate a circulation flow limit to the pure usage times.
- FIG. 1 is a section of a water supply system in the area of a single consumer, namely a thermostatic valve.
- This water supply system comprises a hot water supply line 1 and a cold water supply line 2.
- the hot water supply line 1 leads to a first, preferably Check valve already integrated in the thermostatic valve 3.
- the cold water supply line runs in a similar manner 2 to a second, preferably in that Thermostatic valve integrated check valve 4.
- 4 lead water channels 5, 6 to actual control element 7 of the thermostatic valve, which is connected to a setpoint adjustment device 8. That by the control element 7 to the predetermined temperature brought mixed water is via a pipe or a channel 9 fed to a flow control valve 10 and flows out via line 11.
- the flow control valve 10 can be integrated into the thermostatic valve or spatially be separated from this.
- the water supply system corresponds the conventional structure in the area of a Thermostatic valves.
- first check valve 3 of those commonly used due to a very low opening pressure; this should preferably be below 0.05 bar.
- the second check valve in the cold water path 4 can be disabled by manual operation put. This is shown schematically in FIG. that the check valve 4 is a manually operated valve 12 is connected in parallel. Is this hand operated Valve 12 opened, so the check valve loses 4 its function, since now a flow path for the Water in both directions, i.e. towards control element 7 and from the control element 7 back via the lines 6 and 2 is possible.
- valve 12 If the valve 12 is closed, the water supply system works in the conventional way. This means, that due to the two check valves 3, 4 a cross flow between hot water and cold water supply lines 1, 2 is basically impossible. There is therefore a fundamental risk that the water in the hot water path during a long break cools between successive water withdrawals, as described at the beginning.
- Markings can be found on the setpoint adjustment device 8 for different modes of operation. For example, a marking of the finding of a Serve the position of the setpoint adjustment device 8, where the circulation demands high comfort corresponds, so the water on a proportional basis maintains high temperature. A second marker can be one Correspond to the position of the setpoint adjustment device 8, in which a lower level of comfort is sufficient, however, more economical circulation flow a lower temperature occurs. A third Finally, marking can help locate those preset temperature are used just for frost protection is sufficient.
- a check valve 104 is shown in FIG. that the functions of the second check valve 4 and of this manual valve 12 connected in parallel of Figure 1 united. This combined function is not here by connecting a normal manually operated valve but achieved in that the Check valve is prevented in a suitable manner, to close.
- the check valve includes 104 a two housing parts 120, 121, which have a thread 122 are screwed together coaxially.
- the check valve 104 is generally known in and of itself Way in the housing, not shown in the drawing screwed in the thermostatic valve. This is in the mounting position of the outer housing part 120 an external thread 123.
- the outer housing part 120 is cup-shaped.
- the "bottom" of the cup is covered by a through hole 124 penetrates, in which a plunger 125 seals is movable.
- a handle 126 is formed at the outer end of the plunger 125 .
- the area lying in the interior of the housing part 120 127 of the plunger 125 is enlarged in diameter, so that at its "bottom" of the housing part 120 Page a level 128 arises.
- This stage 128 serves as Stop and prevents the plunger 125 from the Housing part 120 can be pulled out.
- the enlarged area 127 of the ram 125 carries an annular bead 129 on its outer surface, which in a way to be described with a inward radial rib 130 on the inner surface of the housing part 120 cooperates as a detent.
- the inner, with the outer housing part 120 coaxial screwed housing part 121 is essentially hollow cylindrical design. It includes several radial ones Inflow openings 131 formed by an annular, cylindrical Dirt trap screen 132 are covered.
- valve seat 133 The end of the second facing away from the first housing part 120 Housing part 121 is designed as a valve seat 133.
- This valve seat 133 works with a valve disk 134 together, which in turn is a rigid plate 135 and one associated with this molded seal 136.
- valve plate 134 is at the end of an axially extending Valve rod 137 attached, which in turn extends through the "hub" 139 of a holding part 138.
- This holding part 138 is on its outer surface screwed into the inner housing part 121 and has several flow openings around the hub 139 140 on.
- the valve stem 137 is near its end with a snap ring-like abutment 141. Between this abutment 141 and the adjacent end face the hub 139 of the holding part 138 is a compression spring 142 excited, which is the molded seal 136 of the valve plate 134 in contact with the valve seat 133 is pressed.
- the plunger 125 of the check valve shown in Figure 2 104 can take two positions: in the first position shown in Figure 2 the plunger 125 a "normal" operation of the check valve. In the “equivalent circuit diagram" of Figure 1 comes this position of the plunger 125 of the closed position of the Check valve 4 manually operated in parallel Valves 12 the same.
- the second functional position of the tappet 125 of the check valve 104 corresponds in the equivalent circuit diagram of FIG. 1 the open position of the manually operated valve there 12; it is not shown in the drawing.
- the plunger 125 is pressed inwards. Under a certain elastic deformation moves the Bead 129 on the inner region 127 of the plunger 125 over the Rib 130 on the inner surface of the housing part 120 and snaps behind it.
- the inside facing end face of the plunger 125 pushes the Valve rod 137 in front of it and lifts in this way the valve plate 134 from the valve seat 133 against the force the spring 142.
- the check valve 104 can now visible regardless of the size of the print no longer close in the interior of the housing part 121, so that flow in both directions through the check valve 104 is possible unhindered.
- the holding force the locking effect between parts 129 and 130 is greater than the compressive force of the spring 142.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Temperature-Responsive Valves (AREA)
- Devices For Dispensing Beverages (AREA)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
- Massaging Devices (AREA)
- Pipeline Systems (AREA)
- Check Valves (AREA)
Abstract
Description
- Figur 1
- schematisch die Wasserwege und die hierin liegenden Sanitärkomponenten einer ein Thermostatventil enthaltenden Wasserversorgungsanlage;
- Figur 2
- im Axialschnitt ein Rückschlagventil, welches in der Wasserversorgungsanlage von Figur 1 Verwendung finden kann.
Claims (9)
- Wasserversorgungsanlage mita) einer Warmwasser-Versorgungsleitung;b) einer Kaltwasser-Versorgungsleitung;c) mindestens einer an die beiden Versorgungsleitungen anschließbaren sanitären Mischarmatur;d) einem zu der sanitären Mischarmatur parallel geschalteten, thermostatisch gesteuerten Bypassventil, über welches bei geschlossener Mischarmatur Wasser von der Warmwasser-Versorgungsleitung zur Kaltwasser-Versorgungsleitung übertreten kann,
dadurch gekennzeichnet, daße) die sanitäre Mischarmatur ein Thermostatventil ist, welches in an und für sich bekannter Weise aufweist:ea) einen Anschluß für die Warmwasser-Versorgungsleitung (1);eb) einen Anschluß für die Kaltwasser-Versorgungsleitung (2);ec) ein Regelglied (7), welches auf die Temperatur des Mischwassers anspricht und mit einem Warmwasser- und einem Kaltwassersitz derart zusammenwirkt, daß das austretende Mischwasser eine bestimmte, voreinstellbare Temperatur aufweist;ed) ein im Wasserweg zwischen dem Anschluß für die Warmwasser-Versorgungsleitung (1) und dem Regelglied (7) angeordnetes Rückschlagventil (3), welches eine Wasserströmung nur in Richtung auf das Regelglied (7) gestattet;f) im Warmwasserweg zwischen der Kaltwasser-Versorgungsleitung (2) und dem Regelglied (7) kein Rückschlagventil oder nur ein solches Rückschlagventil (4) vorgesehen ist, welches derart außer Funktion gesetzt werden kann, daß es eine Strömung in beiden Richtungen zuläßt. - Wasserversorgungsanlage nach Anspruch 1, dadurch gekennzeichnet, daß das im Warmwasserweg liegende Rückschlagventil (3) einen Öffnungsdruck aufweist, der kleiner als etwa 0,05 bar ist.
- Wasserversorgungsanlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Thermostatventil bei geschlossenem Warmwassersitz eine Leckage zwischen Warmwasseranschluß und Kaltwasseranschluß aufweist, die bei 3 bar kleiner als 0,1 l/min ist.
- Wasserversorgungsanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein im Kaltwasserweg liegendes Rückschlagventil (4) vorgesehen ist, welches eine Wasserströmung nur in Richtung auf das Regelglied (7) zuläßt und dem ein handbetätigtes Absperrventil (12) parallel geschaltet ist.
- Wasserversorgungsanlage nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß ein im Kaltwasserweg liegendes Rückschlagventil (104) vorgesehen ist, welches eine Wasserströmung nur in Richtung auf das Regelglied (7) zuläßt, welches jedoch in seiner Offenstellung verriegelbar ist.
- Wasserversorgungsanlage nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß das Absperrventil (12) bzw. die Verriegelung (125) des Rückschlagventils (104) in der Stellung, in welcher das im Kaltwasserweg liegende Rückschlagventil (4; 104) außer Funktion ist, verrastbar ist.
- Wasserversorgungsanlage nach Anspruch 6, dadurch gekennzeichnet, daß die Rastmittel so ausgebildet sind, daß sie sich bei einer vorbestimmten Temperatur lösen, derart, daß das im Kaltwasserweg liegende Rückschlagventil (4; 104) wieder seine Funktion ausüben kann.
- Wasserversorgungsanlage nach Anspruch 7, dadurch gekennzeichnet, daß die Rastmittel mindestens ein Bimetall-Element unfassen.
- Wasserversorgungsanlage nach Anspruch 7, dadurch gekennzeichnet, daß die Rastmittel mindestens ein "Memory-alloy"-Elemt umfassen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19753101A DE19753101C2 (de) | 1997-11-29 | 1997-11-29 | Wasserversorgungsanlage |
DE19753101 | 1997-11-29 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0919777A2 true EP0919777A2 (de) | 1999-06-02 |
EP0919777A3 EP0919777A3 (de) | 2001-09-19 |
EP0919777B1 EP0919777B1 (de) | 2003-11-26 |
Family
ID=7850296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98117502A Expired - Lifetime EP0919777B1 (de) | 1997-11-29 | 1998-09-15 | Wasserversorgungsanlage |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0919777B1 (de) |
AT (1) | ATE255215T1 (de) |
DE (2) | DE19753101C2 (de) |
ES (1) | ES2209025T3 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10006374A1 (de) * | 2000-02-12 | 2001-08-16 | Hansgrohe Ag | Thermostatventil für Sanitärarmaturen |
DE102011114308B4 (de) * | 2011-09-23 | 2018-05-30 | Audi Ag | Ventileinrichtung sowie Antriebseinrichtung |
DE202015003030U1 (de) * | 2015-04-24 | 2016-07-27 | Gebr. Kemper Gmbh + Co. Kg Metallwerke | Warmwasserzirkulationssystem mit einem SMA-gesteuerten Ventil |
DE102019213475B4 (de) * | 2019-09-05 | 2022-06-30 | Hansgrohe Se | Misch- und Absperrventilvorrichtung und sanitäre Auslaufarmatur |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3916195A1 (de) | 1989-01-25 | 1990-08-02 | Bernhard Miller | Wasserversorgungsanlage |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3622139A1 (de) * | 1986-07-02 | 1988-01-21 | Albert Gohl Sanitaere Anlagen | Wasserversorgungsanlage |
DE4423240C1 (de) * | 1994-07-02 | 1996-02-22 | Hansa Metallwerke Ag | Thermostatventil |
-
1997
- 1997-11-29 DE DE19753101A patent/DE19753101C2/de not_active Expired - Fee Related
-
1998
- 1998-09-15 AT AT98117502T patent/ATE255215T1/de not_active IP Right Cessation
- 1998-09-15 ES ES98117502T patent/ES2209025T3/es not_active Expired - Lifetime
- 1998-09-15 EP EP98117502A patent/EP0919777B1/de not_active Expired - Lifetime
- 1998-09-15 DE DE59810261T patent/DE59810261D1/de not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3916195A1 (de) | 1989-01-25 | 1990-08-02 | Bernhard Miller | Wasserversorgungsanlage |
Also Published As
Publication number | Publication date |
---|---|
ATE255215T1 (de) | 2003-12-15 |
ES2209025T3 (es) | 2004-06-16 |
DE59810261D1 (de) | 2004-01-08 |
DE19753101A1 (de) | 1999-06-10 |
DE19753101C2 (de) | 2001-03-01 |
EP0919777A3 (de) | 2001-09-19 |
EP0919777B1 (de) | 2003-11-26 |
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