EP2325568A2 - Device for tempering a heat transfer medium circulating in a heating circuit - Google Patents
Device for tempering a heat transfer medium circulating in a heating circuit Download PDFInfo
- Publication number
- EP2325568A2 EP2325568A2 EP10191582A EP10191582A EP2325568A2 EP 2325568 A2 EP2325568 A2 EP 2325568A2 EP 10191582 A EP10191582 A EP 10191582A EP 10191582 A EP10191582 A EP 10191582A EP 2325568 A2 EP2325568 A2 EP 2325568A2
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- EP
- European Patent Office
- Prior art keywords
- mixing chamber
- heating
- heat transfer
- transfer medium
- temperature
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 92
- 238000005496 tempering Methods 0.000 title description 2
- 238000001816 cooling Methods 0.000 claims abstract description 25
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 230000001276 controlling effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
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- 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
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1091—Mixing cylinders
Definitions
- the invention relates to a device for controlling the temperature of a heat transfer medium circulated in a heating or cooling circuit with an injection valve, by means of which a heated with a heating or cooling device to a first temperature heat transfer medium to achieve the required flow temperature in a flow of the heating or cooling circuit are admixed can.
- the operation of a heat generating device used in the central heating system can be adapted to the required for all connected heating circuits identical flow temperature.
- two different heat transfer systems such as a radiator heating circuit and a floor heating to be connected to a common central heating system, so usually two different heats, each with a different flow temperature must be provided.
- the first temperature of the heat transfer medium can optionally be adapted to a first flow temperature, which requires second heating circuit a second, different from the first temperature flow temperature.
- a heating circuit can be supplied with a heat transfer medium whose flow temperature can be predetermined by the provided by the central heating system flow temperature of the heat transfer medium for another heating circuit.
- a lower flow temperature for a heating circuit is achieved or specified that either a partial flow of the more heated heat transfer medium is added to the cooler heating circuit or the cooler heating circuit is supplied with the more heated heat transfer medium, which is a sufficient proportion of already cooled heat transfer medium from the return is added.
- the flow temperature of the heating circuit can not be reliable, but only with a distance readjust the time delay between the mixing valve and the temperature measuring device.
- a refrigeration cycle requires the achievement of compliance with predetermined low temperatures. If a cooling circuit is combined with a heating circuit or if different cooling circuits are combined, the respective flow temperature must be provided and maintained in an analogous manner.
- Object of the present invention is therefore to design a device for controlling the temperature of a circulating in a heating or cooling circuit heat transfer medium so that with simple means, the flow temperature of a heating circuit regardless of the temperature of a heated with a heating or cooling device heat transfer medium can be reliably specified.
- the device has a mixing chamber, that the injection valve opens into the mixing chamber and that the Mixing chamber connections for the flow and a return of the heating or cooling circuit has.
- a mixing chamber By using a mixing chamber, rapid and reliable mixing of the heat transfer medium flowing in at different temperatures into the mixing chamber can be facilitated or ensured.
- the mixing chamber has a mixing volume of more than 0.5 liters, preferably more than 1 liter and in particular more than 2 liters.
- the mixing volume made available by the mixing chamber is expediently adapted to the respective requirements, for example with regard to the predetermined temperature difference or with regard to the flow rate of the heat transfer medium required for the heating or cooling circuit. It has been shown that a mixing volume berteiiqueses in the mixing chamber of about 2 liters for most applications can ensure adequate mixing of merged in the mixing chamber heat transfer medium with different temperatures.
- the device has a thermal sensor in the mixing chamber.
- the heat sensor is advantageously arranged at a distance from the injection valve and in the vicinity of the connection for the flow chamber leaving the mixing chamber of the heating or cooling circuit to which the heat transfer medium located in the mixing chamber is supplied.
- the temperature measured values of the heat transfer medium located in the mixing chamber which are determined by means of the heat sensor, can be used to control or regulate in a suitable manner the quantity of the higher or cooler tempered heat transfer medium metered in by the injection valve.
- the respectively required quantity of the heat transfer medium tempered with a heating or cooling device can be metered into the mixing chamber in order to achieve the flow temperature required for the flow of the heating or cooling circuit.
- a heating element is arranged in the mixing chamber.
- the temperature of the heat transfer medium in the mixing chamber can be increased without separate supply of already heated heat transfer medium to the required for the flow of the heating circuit temperature of To reach heat transfer medium.
- the mixing chamber can also be operated using an additional heating element and provide the required flow temperature of the heating circuit available when the heat generating device of the central heating system is not in operation or operation would be uneconomical.
- the heating element in particular in the transitional periods in which the operation of the heat generating device of the central heating system would be uneconomical or has already been turned off, ensure sufficient heating of the heat transfer medium and thus an operation of the heating circuit fed with it.
- the heating circuit can therefore be operated independently of the central heating system.
- the heating element has at least one electrically operable heating element.
- the one heating element or the plurality of heating elements are expediently arranged in the interior of the mixing chamber. If a regular use of the heating element is provided and is desirable or necessary for the operation of the heating circuit, the use of a plurality of mutually spaced and substantially over the entire interior of the mixing chamber extending heating elements is advantageous.
- the mixing chamber can also have a cooling device or be in thermal contact with a heat exchanger, so that the heat transfer medium can be cooled in the mixing chamber.
- the cooling device can be designed as a tube coil, which can be flowed through by an externally supplied coolant.
- the coiled cooling device can surround a designed as a heating element or heating tube heating element.
- FIG. 1 schematically shown apparatus for tempering a recirculated in a heating heat transfer medium has a mixing chamber 1 and an injection valve 2, which opens into the mixing chamber 1, and a port 3 for a flow of a heating circuit not shown and a port 4 for a return of the heating circuit.
- the heating circuit is, for example, the heating circuit of a floor heating.
- the flow temperature required for floor heating is usually lower than the flow temperature of a heating circuit for radiator radiators.
- a not shown heat generating device also not Central heating system shown generates a highly heated heat transfer medium whose temperature is higher than the flow temperature required for the flow of underfloor heating.
- both the return 4 of the heating circuit and the injection valve 2 can be supplied by the heat-generating medium more heated by the heat generating device, open into the mixing chamber 1.
- the mixing chamber 1 is a largely turbulent and effective mixing of the from the return 4 and through the injection valve 2 incoming heat transfer medium instead.
- a measuring device 5 for detecting the temperature of the heat transfer medium located in the mixing chamber 1.
- the admixture of more strongly heated heat transfer medium is regulated by the injection valve 2.
- the mixing chamber 1 additionally has a venting valve 6 and an emptying opening 7. It has been shown that in the mixing chamber 1 sufficient mixing each of the inflowing amounts of cooled or heated heat transfer medium and an accurate detection of the flow temperature of the connected heating circuit is possible.
- the mixing chamber 1 additionally arranged in the mixing chamber 1 heating rods 8, which can be put into operation by means of a control device, not shown.
- a control device not shown.
- Such a device is useful, for example, for use in conjunction with a heat pump. If at low outdoor temperatures with the heat pump, the required flow temperature of the heating circuit can not be achieved or the use of the heat pump at the given temperature differences seems uneconomical, additional heating of the present in the mixing chamber 1 heat transfer medium can be made and ensured by the heating elements 8.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Temperieren eines in einem Heiz- oder Kühlkreislauf umgewälzten Wärmeübertragungsmediums mit einem Einspritzventil, mittels dessen ein mit einer Heiz- oder Kühlvorrichtung auf eine erste Temperatur temperiertes Wärmübertragungsmedium zum Erreichen der erforderlichen Vorlauftemperatur in einen Vorlauf des Heiz- oder Kühlkreislaufs beigemischt werden kann.The invention relates to a device for controlling the temperature of a heat transfer medium circulated in a heating or cooling circuit with an injection valve, by means of which a heated with a heating or cooling device to a first temperature heat transfer medium to achieve the required flow temperature in a flow of the heating or cooling circuit are admixed can.
Wenn lediglich ein Heizkreislauf oder mehrere einheitliche Heizkreisläufe mit einer jeweils übereinstimmenden Vorlauftemperatur an ein Zentralheizungssystem angeschlossen werden, so kann der Betrieb einer in dem Zentralheizungssystem verwendeten Wärmeerzeugungsvorrichtung an die für alle angeschlossenen Heizkreisläufe erforderliche identische Vorlauftemperatur angepasst werden. Sollen dagegen zwei unterschiedliche Wärmeübertragungssysteme, wie beispielsweise ein Radiator-Heizkreislauf und eine Fußbodenheizung an ein gemeinsames Zentralheizungssystem angeschlossen werden, so müssen üblicherweise zwei verschiedene Vorläufe mit jeweils unterschiedlicher Vorlauftemperatur zur Verfügung gestellt werden. Während die erste Temperatur des Wärmeübertragungsmedium gegebenenfalls an eine erste Vorlauftemperatur angepasst werden kann, benötigt der zweite Heizkreislauf eine zweite, von der ersten Temperatur abweichende Vorlauftemperatur.If only one heating circuit or several uniform heating circuits are connected to a respective corresponding flow temperature to a central heating system, the operation of a heat generating device used in the central heating system can be adapted to the required for all connected heating circuits identical flow temperature. On the other hand, if two different heat transfer systems, such as a radiator heating circuit and a floor heating to be connected to a common central heating system, so usually two different heats, each with a different flow temperature must be provided. While the first temperature of the heat transfer medium can optionally be adapted to a first flow temperature, which requires second heating circuit a second, different from the first temperature flow temperature.
Es sind verschiedene Verfahren und Vorrichtungen bekannt, mittels derer ein Heizkreislauf mit einem Wärmeübertragungsmedium versorgt werden kann, dessen Vorlauftemperatur sich von der von dem Zentralheizungssystem bereitgestellten Vorlauftemperatur des Wärmeübertragungsmediums für einen anderen Heizkreislauf vorgeben lässt. Dabei wird üblicherweise eine niedrigere Vorlauftemperatur für einen Heizkreislauf dadurch erreicht, bzw. vorgegeben, dass entweder ein Teilstrom des stärker erwärmten Wärmeübertragungsmediums dem kühleren Heizkreislauf beigemischt wird oder aber der kühlere Heizkreislauf mit dem stärker erwärmten Wärmeübertragungsmedium versorgt wird, dem ein ausreichender Anteil an bereits abgekühltem Wärmeübertragungsmedium aus dessen Rücklauf beigemischt wird.Various methods and devices are known, by means of which a heating circuit can be supplied with a heat transfer medium whose flow temperature can be predetermined by the provided by the central heating system flow temperature of the heat transfer medium for another heating circuit. In this case, usually a lower flow temperature for a heating circuit is achieved or specified that either a partial flow of the more heated heat transfer medium is added to the cooler heating circuit or the cooler heating circuit is supplied with the more heated heat transfer medium, which is a sufficient proportion of already cooled heat transfer medium from the return is added.
Bisher verwendet man hierzu beispielsweise drei Wege- oder Vierwege-Mischventile mit einem Stellantrieb und mit einer geeigneten Steuerung. Dabei wird entweder einer zu hohen Vorlauftemperatur bereits abgekühltes Wärmeübertragungsmedium aus einem Rücklauf des Heizkreislaufs beigemischt oder aber dem aus dem Rücklauf des Heizkreislaufs wieder verwendeten Wärme und bereits abgekühlten Wärmeübertragungsmedium eine ausreichende Menge eines von einer Wärmeerzeugungsvorrichtung erwärmten Wärmeübertragungsmediums beigemischt, um die erforderliche Vorlauftemperatur des Heizkreislaufs zu erreichen. Die hierfür erforderlichen Mischventile und deren Ansteuerung sind vergleichsweise aufwendig und kostenintensiv. Da eine ausreichende Vermischung des unterschiedlich temperierten Wärmeübertragungsmediums erst in einem Abstand zu dem Mischventil stattfindet und zweckmäßigerweise erst dann eine sich einstellende Mischtemperatur gemessen und zur Ansteuerung des Mischventils verwendet werden kann, lässt sich die Vorlauftemperatur des Heizkreislaufs nicht zuverlässig vorgeben, sondern lediglich mit einer dem Abstand zwischen dem Mischventil und der Temperaturmessvorrichtung entsprechenden Zeitverzögerung nachregeln.Up to now, for example, three-way or four-way mixing valves with an actuator and with a suitable control have been used for this purpose. In this case, either an excessively high flow temperature already mixed heat transfer medium from a return of the heating circuit is mixed or added to the heat recovered from the return of the heating circuit and already cooled heat transfer medium a sufficient amount of heated by a heat generating device heat transfer medium to achieve the required flow temperature of the heating circuit , The necessary mixing valves and their control are comparatively expensive and expensive. Since a sufficient mixing of the different temperature heat transfer medium takes place only at a distance to the mixing valve and expediently only then a mixing temperature can be measured and used to control the mixing valve, the flow temperature of the heating circuit can not be reliable, but only with a distance readjust the time delay between the mixing valve and the temperature measuring device.
In gleicher Weise erfordert ein Kühlkreislauf die Erreichung bzw. Einhaltung vorgegebener niedriger Temperaturen. Wird ein Kühlkreislauf mit einem Heizkreislauf kombiniert oder werden verschiedene Kühlkreisläufe miteinander kombiniert, so muss in analoger Weise die jeweilige Vorlauftemperatur bereitgestellt und eingehalten werden.Similarly, a refrigeration cycle requires the achievement of compliance with predetermined low temperatures. If a cooling circuit is combined with a heating circuit or if different cooling circuits are combined, the respective flow temperature must be provided and maintained in an analogous manner.
Aufgabe der vorliegenden Erfindung ist es demzufolge, eine Vorrichtung zum Temperieren eines in einem Heiz- oder Kühlkreislauf umgewälzten Wärmeübertragungsmediums so auszugestalten, dass mit einfachen Mitteln die Vorlauftemperatur eines Heizkreislaufs unabhängig von der Temperatur eines mit einer Heiz- oder Kühlvorrichtung temperierten Wärmeübertragungsmediums zuverlässig vorgegeben werden kann.Object of the present invention is therefore to design a device for controlling the temperature of a circulating in a heating or cooling circuit heat transfer medium so that with simple means, the flow temperature of a heating circuit regardless of the temperature of a heated with a heating or cooling device heat transfer medium can be reliably specified.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Vorrichtung eine Mischkammer aufweist, dass das Einspritzventil in die Mischkammer mündet und dass die Mischkammer Anschlüsse für den Vorlauf und einen Rücklauf des Heiz- oder Kühlkreislaufs aufweist. Durch die Verwendung einer Mischkammer kann eine rasche und zuverlässige Durchmischung des mit unterschiedlichen Temperaturen in die Mischkammer einströmenden Wärmeübertragungsmediums erleichtert bzw. gewährleistet werden. Die Beimischung des Wärmeübertragungsmediums mit einer von der Temperatur des in der Mischkammer befindlichen Wärmeübertragungsmediums abweichenden Temperatur, im Falle von angeschlossenen Heizkreisen üblicherweise mit einer höheren Temperatur, erfolgt demzufolge nicht wie üblich in einem Leitungssystem, dessen oftmals geringe Leitungsdurchmesser eine rasche und zuverlässige Durchmischung der unterschiedlich temperierten Wärmeübertragungsmedien erschwert und zeitlich verzögert. Stattdessen erfolgt die Beimischung in einer Mischkammer, die ein ausreichend großes Mischvolumen aufweist, um eine ausrechende Durchmischung gewährleisten zu können, bevor das durchmischte und auf eine einheitliche Temperatur eingestellte Wärmeübertragungsmedium dem Vorlauf des Heiz-oder Kühlkreislaufs zugeführt wird.This object is achieved in that the device has a mixing chamber, that the injection valve opens into the mixing chamber and that the Mixing chamber connections for the flow and a return of the heating or cooling circuit has. By using a mixing chamber, rapid and reliable mixing of the heat transfer medium flowing in at different temperatures into the mixing chamber can be facilitated or ensured. The admixing of the heat transfer medium with a temperature different from the temperature of the heat transfer medium in the mixing chamber, in the case of connected heating circuits usually with a higher temperature, therefore does not take place as usual in a line system, often small line diameter rapid and reliable mixing of different tempered Heat transfer media difficult and delayed. Instead, the admixture takes place in a mixing chamber which has a sufficiently large mixing volume in order to ensure a thorough mixing before the mixed and adjusted to a uniform temperature heat transfer medium is supplied to the flow of the heating or cooling circuit.
Vorzugsweise ist vorgesehen, dass die Mischkammer ein Mischvolumen von mehr als 0,5 Litern, vorzugsweise von mehr als 1 Liter und insbesondere von mehr als 2 Litern aufweist. Das durch die Mischkammer zur Verfügung gestellte Mischvolumen ist dabei zweckmäßigerweise an die jeweiligen Anforderungen beispielsweise hinsichtlich der vorgegebenen Temperaturdifferenz oder hinsichtlich der für den Heiz-oder Kühlkreislauf erforderlichen Durchflussrate des Wärmeübertragungsmediums angepasst. Es hat sich gezeigt, dass ein in der Mischkammer berteigestelltes Mischvolumen von etwa 2 Litern für die meisten Anwendungen eine ausreichende Durchmischung des in der Mischkammer zusammengeführten Wärmeübertragungsmediums mit unterschiedlichen Temperaturen gewährleisten kann.It is preferably provided that the mixing chamber has a mixing volume of more than 0.5 liters, preferably more than 1 liter and in particular more than 2 liters. The mixing volume made available by the mixing chamber is expediently adapted to the respective requirements, for example with regard to the predetermined temperature difference or with regard to the flow rate of the heat transfer medium required for the heating or cooling circuit. It has been shown that a mixing volume berteigestelltes in the mixing chamber of about 2 liters for most applications can ensure adequate mixing of merged in the mixing chamber heat transfer medium with different temperatures.
Zweckmäßigerweise ist vorgesehen, dass die Vorrichtung einen Wärmesensor in der Mischkammer aufweist. Der Wärmesensor ist dabei vorteilhafterweise in einem Abstand zu dem Einspritzventil und in der Nähe des Anschlusses für den die Mischkammer verlassenden Vorlauf des Heiz- oder Kühlkreislaufs angeordnet, dem das in der Mischkammer befindliche Wärmeübertragungsmedium zugeführt wird. Die mittels des Wärmesensors ermittelten Temperaturmesswerte des in der Mischkammer befindlichen Wärmeübertragungsmediums können dazu verwendet werden, die durch das Einspritzventil zudosierte Menge des höher oder kühler temperierten Wärmeübertragungsmediums zu steuern oder in geeigneter Weise zu regeln. Zweckmäßigerweise kann dabei in einem automatisierten Verfahrensablauf die jeweils erforderliche Menge des mit einer Heiz- oder Kühlvorrichtung temperierten Wärmeübertragungsmediums in die Mischkammer zudosiert werden, um die für den Vorlauf des Heiz- oder Kühlkreislaufs erforderliche Vorlauftemperatur zu erreichen.Appropriately, it is provided that the device has a thermal sensor in the mixing chamber. The heat sensor is advantageously arranged at a distance from the injection valve and in the vicinity of the connection for the flow chamber leaving the mixing chamber of the heating or cooling circuit to which the heat transfer medium located in the mixing chamber is supplied. The temperature measured values of the heat transfer medium located in the mixing chamber, which are determined by means of the heat sensor, can be used to control or regulate in a suitable manner the quantity of the higher or cooler tempered heat transfer medium metered in by the injection valve. Expediently, in an automated procedure, the respectively required quantity of the heat transfer medium tempered with a heating or cooling device can be metered into the mixing chamber in order to achieve the flow temperature required for the flow of the heating or cooling circuit.
Gemäß einer besonders vorteilhaften Ausgestaltung des Erfindungsgedankens ist vorgesehen, dass in der Mischkammer ein Heizelement angeordnet ist. Mit dem Heizelement kann die Temperatur des Wärmeübertragungsmediums in der Mischkammer auch ohne gesonderte Zuführung von bereits erwärmtem Wärmeübertragungsmedium erhöht werden, um die für den Vorlauf des Heizkreislaufs erforderliche Temperatur des Wärmeübertragungsmediums zu erreichen. Die Mischkammer kann bei Verwendung eines zusätzlichen Heizelements auch dann betrieben werden und die erforderliche Vorlauftemperatur des Heizkreislaufs zur Verfügung stellen, wenn die Wärmeerzeugungsvorrichtung des Zentralheizungssystems nicht in Betrieb ist oder ein Betrieb unwirtschaftlich wäre.According to a particularly advantageous embodiment of the inventive concept it is provided that a heating element is arranged in the mixing chamber. With the heating element, the temperature of the heat transfer medium in the mixing chamber can be increased without separate supply of already heated heat transfer medium to the required for the flow of the heating circuit temperature of To reach heat transfer medium. The mixing chamber can also be operated using an additional heating element and provide the required flow temperature of the heating circuit available when the heat generating device of the central heating system is not in operation or operation would be uneconomical.
Durch das Heizelement kann insbesondere in den Übergangszeiten, in denen der Betrieb der Wärmeerzeugungsvorrichtung der Zentralheizungsanlage unwirtschaftlich wäre oder bereits abgestellt wurde, eine ausreichende Erwärmung des Wärmeübertragungsmediums und damit einen Betrieb des damit gespeisten Heizkreislaufs gewährleisten. Der Heizkreislauf kann demzufolge unabhängig von der Zentralheizungsanlage betrieben werden.By the heating element, in particular in the transitional periods in which the operation of the heat generating device of the central heating system would be uneconomical or has already been turned off, ensure sufficient heating of the heat transfer medium and thus an operation of the heating circuit fed with it. The heating circuit can therefore be operated independently of the central heating system.
Vorzugsweise ist vorgesehen, dass das Heizelement mindestens einen elektrisch betreibbaren Heizstab aufweist. Der eine Heizstab oder die mehreren Heizstäbe sind dabei zweckmäßigerweise im Inneren der Mischkammer angeordnet. Sofern eine regelmäßige Verwendung des Heizelements vorgesehen und für den Betrieb des Heizkreislaufs wünschenswert bzw. erforderlich ist, ist die Verwendung von mehreren im Abstand zueinander angeordneten und sich im Wesentlichen über den gesamten Innenraum der Mischkammer erstreckenden Heizstäbe vorteilhaft.It is preferably provided that the heating element has at least one electrically operable heating element. The one heating element or the plurality of heating elements are expediently arranged in the interior of the mixing chamber. If a regular use of the heating element is provided and is desirable or necessary for the operation of the heating circuit, the use of a plurality of mutually spaced and substantially over the entire interior of the mixing chamber extending heating elements is advantageous.
An Stelle eines Heizelements kann die Mischkammer auch eine Kühlvorrichtung aufweisen oder mit einem Wärmetauscher in Wärmekontakt stehen, so dass das Wärmeübertragungsmittel in der Mischkammer gekühlt werden kann.Instead of a heating element, the mixing chamber can also have a cooling device or be in thermal contact with a heat exchanger, so that the heat transfer medium can be cooled in the mixing chamber.
Die Kühlvorrichtung kann als Rohrwendel ausgestaltet sein, der von einem extern zugeführten Kühlmittel durchströmt werden kann. Um eine möglichst kompakte Bauform der Mischkammer zu ermöglichen kann die gewendelte Kühlvorrichtung ein als Heizstab oder Heizrohr ausgestaltetes Heizelement umgeben.The cooling device can be designed as a tube coil, which can be flowed through by an externally supplied coolant. In order to enable the most compact possible construction of the mixing chamber, the coiled cooling device can surround a designed as a heating element or heating tube heating element.
Nachfolgend werden am Beispiel eines Heizkreislaufs zwei verschiedene Ausführungsbeispiele des Erfindungsgedankens näher erläutert, die in der Zeichnung dargestellt sind. Es zeigt:
-
Fig. 1 eine Vorrichtung mit einer Mischkammer mit einem Einspritzventil und mit zwei Anschlüssen für einen Vorlauf und einen Rücklauf eines Heizkreislaufs und -
Fig. 2 eine Vorrichtung gemäßFig. 1 , die zusätzlich ein Heizelement in der Mischkammer aufweist.
-
Fig. 1 a device with a mixing chamber with an injection valve and with two connections for a flow and a return of a heating circuit and -
Fig. 2 a device according toFig. 1 which additionally has a heating element in the mixing chamber.
Die in
Im Abstand von dem Anschluss für den Rücklauf4 und dem Einspritzventil 2 und in unmittelbarer Nähe zu dem Anschluss für den Vorlauf 3 befindet sich eine Messeinrichtung 5 zur Erfassung der Temperatur des sich in der Mischkammer 1 befindenden Wärmeübertragungsmediums. In Abhängigkeit von den ermittelten Temperaturwerten für das in der Mischkammer 1 befindliche Wärmeübertragungsmedium wird die Beimischung von stärker erwärmtem Wärmeübertragungsmedium durch das Einspritzventil 2 geregelt.At a distance from the connection for the return 4 and the
Die Mischkammer 1 weist zusätzlich ein Entlüftungsventil 6 und eine Entleerungsöffnung 7 auf. Es hat sich gezeigt, dass in der Mischkammer 1 eine ausreichende Durchmischung der jeweils einströmenden Mengen an abgekühltem bzw. an erwärmtem Wärmeübertragungsmedium sowie eine genaue Erfassung der Vorlauftemperatur des angeschlossenen Heizkreislaufs möglich ist.The
Bei der in
Es ist ebenso denkbar, dass bei einem vollständigen Ausfall einer der Zentralheizungsanlage zugeordneten Wärmeerzeugungsvorrichtung oder bei deren Abschaltung in den Übergangszeiten im Frühjahr oder im Herbst eine ausreichende Erwärmung des in der Mischkammer 1 befindlichen Wärmeübertragungsmediums und damit ein Betrieb des daran angeschlossenen Heizkreislaufs ermöglicht wird.It is also conceivable that in a complete failure of the central heating system associated heat generating device or their shutdown in the transitional periods in the spring or in the fall sufficient heating of the heat transfer medium in the
Claims (6)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE200910044566 DE102009044566A1 (en) | 2009-11-17 | 2009-11-17 | Device for controlling the temperature of a heat transfer medium circulated in a heating circuit |
Publications (2)
Publication Number | Publication Date |
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EP2325568A2 true EP2325568A2 (en) | 2011-05-25 |
EP2325568A3 EP2325568A3 (en) | 2015-01-21 |
Family
ID=43795195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10191582.5A Withdrawn EP2325568A3 (en) | 2009-11-17 | 2010-11-17 | Device for tempering a heat transfer medium circulating in a heating circuit |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2325568A3 (en) |
DE (1) | DE102009044566A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013101792A1 (en) | 2013-02-22 | 2014-08-28 | Wolf Gmbh | Housing for receiving at least one heating element and housing system |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2503843A1 (en) * | 1981-04-14 | 1982-10-15 | Dietrich Sa | Heat equalisation vessel for heat generators - provides hydraulic coupling between generators and heating circuit using circulation tank |
DE20007262U1 (en) * | 2000-04-19 | 2000-08-03 | Petrick & Wolf Energietechnik Gmbh, 02979 Neuwiese | Steam injector |
DE202005014029U1 (en) * | 2005-09-05 | 2005-11-17 | Comfort-Sinusverteiler Gmbh | Pipe manifold for heating or cooling system, has pipe socket leading from outside through switching chamber and opening in separating wall |
DE102006010562A1 (en) * | 2006-03-06 | 2007-09-13 | Wilo Ag | Device for distributing and controlling a heat carrier originating from a heating and / or cooling source |
DE102006025837B3 (en) * | 2006-06-02 | 2008-01-03 | Robert Bosch Gmbh | Hydraulic switch for use between boiler and heating circuit, has hydraulic separated pipe line section with surface extending elements, and immersion sleeve arranged in area of flow connection socket for temperature measuring sensor |
-
2009
- 2009-11-17 DE DE200910044566 patent/DE102009044566A1/en not_active Withdrawn
-
2010
- 2010-11-17 EP EP10191582.5A patent/EP2325568A3/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2503843A1 (en) * | 1981-04-14 | 1982-10-15 | Dietrich Sa | Heat equalisation vessel for heat generators - provides hydraulic coupling between generators and heating circuit using circulation tank |
DE20007262U1 (en) * | 2000-04-19 | 2000-08-03 | Petrick & Wolf Energietechnik Gmbh, 02979 Neuwiese | Steam injector |
DE202005014029U1 (en) * | 2005-09-05 | 2005-11-17 | Comfort-Sinusverteiler Gmbh | Pipe manifold for heating or cooling system, has pipe socket leading from outside through switching chamber and opening in separating wall |
DE102006010562A1 (en) * | 2006-03-06 | 2007-09-13 | Wilo Ag | Device for distributing and controlling a heat carrier originating from a heating and / or cooling source |
DE102006025837B3 (en) * | 2006-06-02 | 2008-01-03 | Robert Bosch Gmbh | Hydraulic switch for use between boiler and heating circuit, has hydraulic separated pipe line section with surface extending elements, and immersion sleeve arranged in area of flow connection socket for temperature measuring sensor |
Also Published As
Publication number | Publication date |
---|---|
DE102009044566A1 (en) | 2011-05-19 |
EP2325568A3 (en) | 2015-01-21 |
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