DE102013101250B4 - Thermostat-controlled mixing valve with thermal overpressure protection - Google Patents
Thermostat-controlled mixing valve with thermal overpressure protection Download PDFInfo
- Publication number
- DE102013101250B4 DE102013101250B4 DE102013101250.7A DE102013101250A DE102013101250B4 DE 102013101250 B4 DE102013101250 B4 DE 102013101250B4 DE 102013101250 A DE102013101250 A DE 102013101250A DE 102013101250 B4 DE102013101250 B4 DE 102013101250B4
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- DE
- Germany
- Prior art keywords
- valve
- housing
- water
- mixing
- thermostat
- 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.)
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Classifications
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- 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
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- 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
- E03B7/006—Arrangements or methods for cleaning or refurbishing water conduits
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- 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, valves, in the pipe systems
- E03B7/075—Arrangement of devices for control of pressure or flow rate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K19/00—Arrangements of valves and flow lines specially adapted for mixing fluids
- F16K19/006—Specially adapted for faucets
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/01—Control of temperature without auxiliary power
- G05D23/13—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures
- G05D23/1306—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids
- G05D23/132—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element
- G05D23/134—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element measuring the temperature of mixed fluid
- G05D23/1346—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element measuring the temperature of mixed fluid with manual temperature setting means
- G05D23/1353—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element measuring the temperature of mixed fluid with manual temperature setting means combined with flow controlling means
Abstract
Thermostatgeregelte Mischarmatur (10), mit einem wenigstens je eine Zulauföffnung (12, 13) für das kalte und warme Wasser sowie einen Wasserauslauf (20) für das Mischwasser aufweisenden Gehäuse (11), wobei in dem Gehäuse (11) einerseits ein von einer Temperaturvorwahleinrichtung (17) stellbarer Thermostat (16) zur geregelten Einleitung von kaltem und warmem Wasser in eine im Gehäuse (11) vorhandene Mischkammer (18) und andererseits ein Mengenregulierventil (21) zur dosierenden Abgabe des Mischwassers aus der Mischkammer (18) in einen zu dem Wasserauslauf (20) führenden Kanal (19) angeordnet sind, dadurch gekennzeichnet, dass zwischen der Mischkammer (18) und dem zum Wasserauslauf (20) führenden Kanal (19) ein bei Überschreiten eines voreingestellten Drucks öffnendes und ein Überströmen von Mischwasser aus der Mischkammer (18) in den Kanal (19) ermöglichendes Überdruckventil (25) angeordnet ist.Thermostat-controlled mixing valve (10), comprising at least one respective inlet opening (12, 13) for the cold and warm water and a water outlet (20) for the mixed water having housing (11), wherein in the housing (11) on the one hand by a temperature selection device (17) adjustable thermostat (16) for the controlled introduction of cold and warm water in a housing (11) existing mixing chamber (18) and on the other hand, a Mengenregelulierventil (21) for metered delivery of the mixed water from the mixing chamber (18) in one of the Water outlet (20) leading channel (19) are arranged, characterized in that between the mixing chamber (18) and the water outlet (20) leading channel (19) opening at a preset pressure is exceeded and an overflow of mixed water from the mixing chamber (19) 18) in the channel (19) enabling pressure relief valve (25) is arranged.
Description
Die Erfindung betrifft eine thermostatgeregelte Mischarmatur, insbesondere zum Bereiten von themperiertem Warmwasser für Duschen, Badewannen, Waschbecken oder dergleichen, mit einem wenigstens je eine Zulauföffnung für das kalte und warme Wasser sowie einen Wasserauslauf für das Mischwasser aufweisenden Gehäuse, wobei in dem Gehäuse einerseits ein von einer Temperaturvorwahleinrichtung stellbarer Thermostat zur geregelten Einleitung von kaltem und warmem Wasser in eine im Gehäuse vorhandene Mischkammer und andererseits ein Mengenregulierventil zur dosierenden Abgabe des Mischwassers aus der Mischkammer in einen zu dem Wasserauslauf führenden Kanal angeordnet sind.The invention relates to a thermostatically controlled mixing valve, in particular for preparing heated hot water for showers, bathtubs, sinks or the like, with at least one inlet opening for the cold and warm water and a water outlet for the mixed water having housing, wherein in the housing on the one hand a temperature-setting device adjustable thermostat for the controlled introduction of cold and hot water in a mixing chamber provided in the housing and on the other hand a Mengenregulierventil for metered delivery of the mixed water from the mixing chamber are arranged in a leading to the water outlet channel.
Eine thermostatgeregelte Mischarmatur mit den vorgenannten Merkmalen ist in der
Aus
Soweit mit derartigen thermostatgeregelten Mischarmaturen ausgerüstete Wasserversorgungsanlagen insbesondere im Rahmen einer Anwendung im Krankenhausbereich, in Altenheimen oder ähnlichem zur Abtötung von Bakterien oder Keimen einer regelmäßig durchgeführten thermischen Desinfektion unterzogen werden, werden dabei die gebäudeseitigen Leitungen mit mehr als 70 Grad heißem Wasser gespült. Dies führt zu einer starken Aufheizung der jeweils an die dem heißen Wasser ausgesetzten Wandanschlüsse angeschlossenen Gehäuse-Gusskörper aufgrund entsprechender Wärmeleitung, so dass sich in der Folge das im Gehäuse der thermostatgeregelten Mischarmatur anstehende Wasser ebenfalls stark erwärmt. Mit dieser Wasseraufheizung geht eine entsprechende Druckerhöhung innerhalb des Gehäuses einher, die zu einer Beschädigung von Armaturenbauteilen, insbesondere von inneren Dichtungsbauteilen, führen kann. Dies gilt umsomehr, wenn in die Anschlussbereiche der Mischarmatur an die gebäudeseitigen Wandanschlüsse Rückschlagventile eingebaut sind, so dass sich das in dem Armaturengehäuse anstehende Wasser bei geschlossenem Mengenregulierventil in keine Richtung ausdehnen kann.As far as equipped with such thermostatically controlled mixing valves equipped water supply systems in particular in the context of an application in the hospital sector, retirement homes or the like to kill bacteria or germs regularly thermal disinfection, while the building-side lines are rinsed with more than 70 degrees hot water. This leads to a strong heating of each connected to the hot water exposed wall connections housing cast body due to appropriate heat conduction, so that in the wake of the pending in the housing of the thermostatically controlled mixing valve water also strongly heated. With this water heating is accompanied by a corresponding pressure increase within the housing, which can lead to damage of valve components, in particular of internal sealing components. This applies all the more, if in the connection areas of the mixing valve to the building-side wall connections check valves are installed, so that the pending in the fitting housing water can not expand in any direction with closed flow control valve.
Der Erfindung liegt daher die Aufgabe zugrunde, eine thermostatgeregelte Mischarmatur der eingangs genannten Art derart zu verbessern, dass auch bei einer im Rahmen einer thermischen Desinfektion hervorgerufenen Erwärmung des Armaturengehäuses keine Schäden durch das sich aufheizende Wasser eintreten.The invention is therefore an object of the invention to improve a thermostatically controlled mixing valve of the type mentioned in such a way that even with a caused in a thermal disinfection heating of the valve body no damage from the heating up water occur.
Die Lösung dieser Aufgabe ergibt sich einschließlich vorteilhafter Ausgestaltungen und Weiterbildungen der Erfindung aus dem Inhalt der Patentansprüche, welche dieser Beschreibung nachgestellt sind.The solution to this problem arises, including advantageous refinements and developments of the invention from the content of the claims, which are adjusted to this description.
Die Erfindung sieht in ihrem Grundgedanken vor, dass zwischen der Mischkammer und dem zum Wasserauslauf führenden Kanal ein bei Überschreiten eines voreingestellten Drucks öffnendes und ein Überströmen von Mischwasser aus der Mischkammer in den Kanal ermöglichendes Überdruckventil angeordnet ist. Mit der Erfindung ist insoweit der Vorteil verbunden, dass im Falle einer thermisch bedingten Druckerhöhung im Inneren des Gehäuses der Mischarmatur ein entsprechendes und die Bildung eines Überdruckes bewirkendes Wasservolumen selbsttätig über das Überdruckventil in den Kanal und damit über den Wasserauslauf aus der Mischarmatur austreten kann. Sinkt der Druck im Armaturengehäuse unter den voreingestellten Druck des Überdruckventils ab, so schließt das Überdruckventil, so dass für eine jeweils nachfolgende Benutzung der Mischarmatur immer ein gewünschter Wasservorrat im Gehäuse zur Verfügung steht.The invention provides in its basic idea that between the mixing chamber and the channel leading to the water outlet, a pressure relief valve is provided which opens when a preset pressure is exceeded and an overflow of mixed water from the mixing chamber into the channel is arranged. The invention has the advantage that, in the case of a thermally induced pressure increase inside the housing of the mixing valve a corresponding and the formation of an overpressure causing water volume can escape automatically via the pressure relief valve in the channel and thus via the water outlet from the mixing valve. If the pressure in the valve housing drops below the preset pressure of the pressure relief valve, the pressure relief valve closes, so that a desired water supply in the housing is always available for subsequent use of the mixing valve.
Nach einem Ausführungsbeispiel der Erfindung besteht das Überdruckventil aus einem in einem Ventilgehäuse gegen Federwirkung verschiebbaren Ventilkegel, der in seiner durch eine sich gehäuseseitig abstützende Feder vorgespannten Schließstellung eine mit der Mischkammer kommunizierende Gehäuseöffnung verschließt und in dem Ventilgehäuse eine von dem Ventilkegel in dessen entgegen der Federwirkung verschobenen Offenstellung freigegebene und mit der Gehäuseöffnung in Verbindung stehende, zum Kanal führende Abströmöffnung angeordnet ist.According to one embodiment of the invention, the pressure relief valve consists of a valve housing against spring action displaceable poppet, which closes in its by a housing side supporting spring biased closed position communicates with the mixing chamber housing opening and displaced in the valve housing in the opposite of the spring action of the valve cone Open position is released and arranged with the housing opening in communication with the channel leading outflow opening is arranged.
In einer vorteilhaften Ausführungsform der Erfindung ist das in einer parallelen Anordnung zum Mengenregulierventil im Gehäuse der Mischarmatur untergebracht.In an advantageous embodiment of the invention, this is housed in a parallel arrangement to the flow control valve in the housing of the mixing valve.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung wiedergegeben, welches nachstehend beschrieben ist. Es zeigen:In the drawing, an embodiment of the invention is reproduced, which is described below. Show it:
Wie sich zunächst aus
Im Inneren des Armaturengehäuses
Wie sich dazu aus
Kommt es nun im Falle einer thermischen Desinfektion zu einer Aufheizung des Gehäuses
Die in der vorstehenden Beschreibung, den Patentansprüchen, der Zusammenfassung und der Zeichnung offenbarten Merkmale des Gegenstandes dieser Unterlagen können einzeln als auch in beliebigen Kombinationen untereinander für die Verwirklichung der Erfindung in ihren verschiedenen Ausführungsformen wesentlich sein.The features disclosed in the foregoing description, the claims, the abstract and the drawings of the subject matter of these documents may be essential individually as well as in any combination with each other for the realization of the invention in its various embodiments.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102013101250.7A DE102013101250B4 (en) | 2013-02-08 | 2013-02-08 | Thermostat-controlled mixing valve with thermal overpressure protection |
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Application Number | Priority Date | Filing Date | Title |
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DE102013101250.7A DE102013101250B4 (en) | 2013-02-08 | 2013-02-08 | Thermostat-controlled mixing valve with thermal overpressure protection |
Publications (2)
Publication Number | Publication Date |
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DE102013101250A1 DE102013101250A1 (en) | 2014-08-14 |
DE102013101250B4 true DE102013101250B4 (en) | 2018-03-22 |
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DE102013101250.7A Active DE102013101250B4 (en) | 2013-02-08 | 2013-02-08 | Thermostat-controlled mixing valve with thermal overpressure protection |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3531228C1 (en) | 1985-08-31 | 1987-01-15 | Knebel & Roettger Fa | Device in a mixing valve, in particular in the sanitary sector |
US4669653A (en) | 1985-01-09 | 1987-06-02 | Danfoss A/S | Thermostatic mixer tap |
DE19813296A1 (en) | 1998-03-26 | 1999-09-30 | Grohe Armaturen Friedrich | Thermostatically controlled hot and cold water mixer unit for bath, washbasin etc. |
DE29823960U1 (en) | 1998-07-27 | 2000-02-24 | Neheim Goeke & Co Metall | Valve for hot water systems |
WO2009050531A2 (en) | 2007-10-18 | 2009-04-23 | Huber S.P.A. | Mixing group with thermostat valve |
-
2013
- 2013-02-08 DE DE102013101250.7A patent/DE102013101250B4/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4669653A (en) | 1985-01-09 | 1987-06-02 | Danfoss A/S | Thermostatic mixer tap |
DE3531228C1 (en) | 1985-08-31 | 1987-01-15 | Knebel & Roettger Fa | Device in a mixing valve, in particular in the sanitary sector |
DE19813296A1 (en) | 1998-03-26 | 1999-09-30 | Grohe Armaturen Friedrich | Thermostatically controlled hot and cold water mixer unit for bath, washbasin etc. |
DE29823960U1 (en) | 1998-07-27 | 2000-02-24 | Neheim Goeke & Co Metall | Valve for hot water systems |
WO2009050531A2 (en) | 2007-10-18 | 2009-04-23 | Huber S.P.A. | Mixing group with thermostat valve |
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DE102013101250A1 (en) | 2014-08-14 |
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Owner name: IDEAL STANDARD INTERNATIONAL NV, BE Free format text: FORMER OWNER: IDEAL-STANDARD INTERNATIONAL BVBA, BRUESSEL, BE |
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Representative=s name: PATENTANWAELTE BECKER & MUELLER, DE |
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