DE3522344A1 - Method for controlling the temperature of the hot water flowing to consumers connected to a hot water supply system with a circulation line, and hot water supply system for carrying out the method - Google Patents

Method for controlling the temperature of the hot water flowing to consumers connected to a hot water supply system with a circulation line, and hot water supply system for carrying out the method

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Publication number
DE3522344A1
DE3522344A1 DE19853522344 DE3522344A DE3522344A1 DE 3522344 A1 DE3522344 A1 DE 3522344A1 DE 19853522344 DE19853522344 DE 19853522344 DE 3522344 A DE3522344 A DE 3522344A DE 3522344 A1 DE3522344 A1 DE 3522344A1
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DE
Germany
Prior art keywords
hot water
supply system
water supply
temperature
circulation pump
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
Application number
DE19853522344
Other languages
German (de)
Other versions
DE3522344C2 (en
Inventor
Erich Dipl Ing Koops
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imtech Deutschland GmbH and Co KG
Original Assignee
Rud Otto Meyer GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rud Otto Meyer GmbH and Co KG filed Critical Rud Otto Meyer GmbH and Co KG
Priority to DE19853522344 priority Critical patent/DE3522344A1/en
Publication of DE3522344A1 publication Critical patent/DE3522344A1/en
Application granted granted Critical
Publication of DE3522344C2 publication Critical patent/DE3522344C2/de
Granted legal-status Critical Current

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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
    • F24D17/0078—Recirculation systems
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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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)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Abstract

The invention relates to a method for controlling the temperature of the hot water flowing to consumers connected to a hot water supply system with a circulation line, and to a hot water supply system for carrying out the method. The circulation pump does not start until hot water is tapped by a consumer and the hot water temperature in the hot water system is below the desired temperature. It is shut off when the tapping of hot water is terminated or the water temperature in the hot water system corresponds to the desired temperature. The circulation pump 6 arranged in the circulation line 5 is connected to a controller 7 which is connected to a temperature sensor 8 and a flow sensor 9, arranged in the hot water feed line 4, or a turn-on element 10 on the consumer site. <IMAGE>

Description

Die Erfindung betrifft ein Verfahren zur Regelung der Temperatur des an ein Warmwasser-Versorgungssystem mit Zirkulationsleitung angeschlossenen Verbrauchern zu­ fließenden Warmwassers und ein Warmwasser-Versorgungs­ system zur Durchführung des Verfahrens, mit einer Heiz­ vorrichtung und mindestens einem entfernt von der Heiz­ vorrichtung angeordneten und über eine einzige Warmwas­ serleitung mit der Heizvorrichtung verbundenen Ver­ braucher.The invention relates to a method for regulating the Temperature of the to a hot water supply system Circulation line connected consumers flowing hot water and a hot water supply system for performing the method, with a heating device and at least one away from the heater device arranged and over a single hot water Ver line connected to the heater need.

Um am Verbraucher jederzeit warmes Wasser verfügbar zu haben, ist es bekannt, ein Umlaufsystem vorzusehen, das in der Nähe der einzelnen Verbraucher entlanggeführt und in dem ständig warmes Wasser umgewälzt wird. An einem solchen Umlaufsystem ist der Verbraucher mit einer Stich­ leitung angeschlossen. Da unabhängig davon, ob warmes Wasser am Verbraucher abgenommen wird oder nicht, stän­ dig Warmwasser in dem Umlaufsystem zirkuliert, entstehen hohe Wärmeverluste im Umlaufsystem. Diese Zirkulations­ verluste betragen bis zu 50% der erforderlichen Warm­ wasserenergie, was den Gesamtenergiebedarf unangenehm erhöht. Um dies zu verhindern, ist es nach der EP-PS 0 052 667 vorgeschlagen worden, in die Warmwasserleitung jeweils einen in der Nähe des Verbrauchers angeordneten Wärmespeicher vorzusehen. Der Wärmespeicher kann hierbei ein Latentwärmespeicher sein, der eine zwischen 30°C und 70°C ihren Aggregatzustand ändernde Substanz enthält. Bei diesem Warmwasser-Versorgungssystem ist zwar eine Warmwasserentnahme auch in kleinen Mengen möglich, es besteht jedoch der Nachteil starker Temperaturschwankun­ gen. Beim Zapfen wird zunächst kaltes Wasser im Speicher erwärmt und tritt mäßig erwärmt aus, bis die Temperatur­ verluste des Speichers ausgeglichen sind. Danach tritt dann zwangsweise übermäßig erwärmtes Wasser aus, so daß im Ergebnis auch relativ hohe Wärmeverluste entstehen. To keep hot water available to the consumer at all times have, it is known to provide a circulation system that run close to individual consumers and in which warm water is constantly circulated. On one such circulation system is the consumer with a stitch line connected. Because regardless of whether warm Water is removed from the consumer or not dig hot water circulates in the circulation system high heat losses in the circulation system. This circulation losses are up to 50% of the required warmth water energy, making the total energy requirement uncomfortable elevated. To prevent this, it is according to the EP-PS 0 052 667 has been proposed in the hot water pipe one each arranged near the consumer To provide heat storage. The heat store can do this be a latent heat storage, the one between 30 ° C and 70 ° C contains a substance that changes its physical state. There is one in this hot water supply system Hot water can also be drawn in small quantities however, there is the disadvantage of large temperature fluctuations cold water is stored in the storage tank warms and exits moderately warmed until the temperature memory losses are balanced. After that occurs then forcibly overheated water so that as a result, there are also relatively high heat losses.  

Die Aufgabe der Erfindung besteht darin, ein gattungs­ gemäßes Warmwasser-Versorgungssystem zu schaffen, bei dem durch Verwendung einer Zirkulationsleitung den Warmwasserverbrauchern bei Bedarf stets nach kurzer Zeit erforderliche Warmwasser zur Verfügung steht, ohne daß die bei bekannten Warmwasser-Versorgungssystemen be­ stehenden großen Wärmeverluste auftreten.The object of the invention is a genus to create an appropriate hot water supply system by using a circulation line Hot water consumers always after a short time if necessary required hot water is available without the be in known hot water supply systems standing large heat losses occur.

Erfindungsgemäß erfolgt die Lösung der Aufgabe dadurch, daß die Zirkulationspumpe nur dann anläuft, wenn von einem Verbracher Warmwasser gezapft wird und die Warm­ wassertemperatur im Warmwassernetz unter der Solltem­ peratur liegt, und dann abgeschaltet wird, wenn die Warmwasserzapfung beendet oder die Warmwassertemperatur im Warmwassernetz der Solltemperatur entspricht.According to the invention, the object is achieved by that the circulation pump only starts when from a hot water dispenser is drawn and the warm Water temperature in the hot water network below the target temperature temperature, and is then switched off when the Hot water tap stopped or the hot water temperature corresponds to the target temperature in the hot water network.

Weitere Merkmale der Erfindung werden in den Unteran­ sprüchen beschrieben.Further features of the invention are set out in the subs sayings described.

In der Zeichnung ist ein schematisches Schaltbild eines Warmwasser-Versorgungssystems gemäß der Erfindung dar­ gestellt, das nachstehend näher erläutert wird.In the drawing is a schematic diagram of a Hot water supply system according to the invention provided, which is explained in more detail below.

Das Warmwasser-Versorgungssystem 1 besteht aus einem Warmwasserspeicher 2, der mit einer Beheizungseinheit 3 verbunden ist. An den Warmwasserspeicher 2 ist eine Warm­ wasservorlaufleitung 4 angeschlossen, die zur Warmwas­ serversorgung von Verbrauchern 15 dient. Die Warmwas­ servorlaufleitung 4 ist mit einer Zirkulationsleitung 5 verbunden, in der eine Zirkulationspume 6 angeschlossen ist und die rücklaufseitig mit dem Warmwasserspeicher 2 verbunden ist.The hot water supply system 1 consists of a hot water tank 2 , which is connected to a heating unit 3 . At the hot water tank 2 , a warm water supply line 4 is connected, which is used for hot water server supply to consumers 15 . The hot water servorlaufleitung 4 is connected to a circulation line 5 , in which a circulation pump 6 is connected and which is connected on the return side to the hot water tank 2 .

Die Zirkulationspumpe 6 ist mit einem Regler 7 verbun­ den, der mit einem in der Warmwasservorlaufleitung 4 angeordneten Temperatursensor 8 und einem Strömungssen­ sor 9 in Verbindung steht. Bei einer Warmwasserzapfung an einem Verbraucher 15 gibt der Strömungssensor 9 auf­ grund des strömenden Warmwassers einen Impuls an den Regler 7, der die Zirkulationspumpe 6 zum Anlaufen bringt. Nach erreichen der Solltemperatur des Warmwas­ sers in der Zirkulationsleitung 5 wird dieses durch den Temperatursensor 11 gemessen, so daß der Regler 7 die Zirkulationspumpe 6 wieder abschaltet.The circulation pump 6 is connected to a controller 7 which communicates with a temperature sensor 8 arranged in the hot water supply line 4 and a flow sensor 9 . In the case of hot water tapping at a consumer 15 , the flow sensor 9 gives an impulse to the controller 7 due to the flowing hot water, which causes the circulation pump 6 to start. After reaching the target temperature of the warm water in the circulation line 5 , this is measured by the temperature sensor 11 , so that the controller 7 switches off the circulation pump 6 again.

Es ist auch möglich, in der Warmwasserleitung 4 zusätz­ lich einen weiteren Temperatursensor 8 vorzusehen, der ebenfalls mit dem Regler 7 verbunden ist. Dieser Tempe­ ratursensor 8 gewährleistet, daß die Zirkulationspumpe 6 stets solange läuft bis in der Zirkulationsleitung 5 Warmwasser mit Solltemperatur ansteht. Die Temperatursen­ soren 8, 11 sind annähernd gleich.It is also possible to provide a further temperature sensor 8 in the hot water line 4 , which is also connected to the controller 7 . This tempe rature sensor 8 ensures that the circulation pump 6 always runs until hot water at the set temperature is present in the circulation line 5 . The Temperatursen sensors 8 , 11 are approximately the same.

Der Regler 7 kann mit einem nicht näher dargestellten Zeitschaltglied versehen sein. Hierdurch können vom Regler 7 Startimpulse für die Zirkulationspumpe 6 in Abhängigkeit von Tages- und/oder Wochenprogrammen, die ggf. lernfähig bzw. adaptierend sein können, abgegeben werden.The controller 7 can be provided with a time switching element, not shown. As a result, the controller 7 can emit start pulses for the circulation pump 6 as a function of daily and / or weekly programs, which may be capable of learning or adapting.

Es ist auch möglich, den Regler 7 mittels Einschaltglie­ dern 10, die z.B. als Taster ausgebildet sein können und jeweils einem Verbraucher 15 zugeordnet sind, mit einem Startimpuls zu beaufschlagen, so daß die Zirkulations­ pumpe 6 in Abhängigkeit von der Betätigung mindestens eines Zeitschaltgliedes anläuft. Hierdurch wird eine zapfabhängige Warmwasserzirkulation erzielt, durch die Wärmeverluste des Warmwasser-Versorgungssystems 1 erheb­ lich vermindert werden. Die Einschaltglieder 10 können als berührungslose Schaltsensoren ausgebildet sein. It is also possible to apply the controller 7 by means of Einschaltglie 10 , which may be designed as a button and each associated with a consumer 15 , with a start pulse, so that the circulation pump 6 starts depending on the actuation of at least one timer. As a result, a tap-dependent hot water circulation is achieved by the heat losses of the hot water supply system 1 are significantly reduced Lich. The closing elements 10 can be designed as non-contact switching sensors.

Die Zirkulationspumpe 6, die Warmwasservorlaufleitung 4 sowie die Zirkulationsleitung 5 werden vorzugsweise so dimensioniert, daß die Strömungsgeschwindigkeit in den genannten Leitungen so groß ist, wie es hinsichtlich Erosion und Strömungsgeräuschen noch vertretbar ist. Als möglich hat sich hierbei eine Strömungsgeschwindigkeit von 2 m/s bewährt.The circulation pump 6 , the hot water supply line 4 and the circulation line 5 are preferably dimensioned such that the flow speed in the lines mentioned is as great as is acceptable with regard to erosion and flow noise. A flow rate of 2 m / s has proven to be possible.

Es ist auch möglich, zwischen den Anschlußleitungen 12 des jeweiligen Verbrauchers 15 und der Zirkulations­ leitung 5 jeweils eine Leitung 13 vorzusehen. In dieser Leitung 13 kann ein Thermostatventil 14 eingesetzt sein, das beim Erreichen der Warmwassersolltemperatur in der jeweiligen Leitung 13 schließt. Bei weitverzweigten Warmwasser-Verteilnetzen können mehrere Zirkulationspum­ pen 6 derart verwendet werden, daß jeweils einem Netz­ abschnitt eine Zirkulationspumpe 6 zugeordnet ist. Den einzelnen Zirkulationspumpenkreisen ist dabei zweck­ mäßigerweise jeweils ein Rückschlagventil zugeordnet um Fehlzirkulationen ausschließen zu können.It is also possible to provide a line 13 between the connecting lines 12 of the respective consumer 15 and the circulation line 5 . In this line 13 , a thermostatic valve 14 can be used, which closes in the respective line 13 when the target hot water temperature is reached. In the case of widely branched hot water distribution networks, a plurality of circulation pumps 6 can be used such that a circulation pump 6 is assigned to a network section. A check valve is expediently assigned to the individual circulation pump circuits in order to be able to rule out incorrect circulation.

Claims (11)

1. Verfahren zur Regelung der Temperatur des an ein Warmwasser-Versorgungssystem mit Zirkulationsleitung angeschlossenen Verbrauchern zufließenden Warmwasers, dadurch gekennzeichnet, daß die Zirkulationspumpe nur dann anläuft, wenn von einem Verbraucher Warm­ wasser gezapft wird und die Warmwassertemperatur im Warmwassernetz unter der Solltemperatur liegt, und dann abgeschaltet wird, wenn die Warmwasserzapfung beendet oder die Wassertemperatur im Warmwassernetz der Solltemperatur entspricht.1. A method for controlling the temperature of the hot water flowing to consumers connected to a hot water supply system with a circulation line, characterized in that the circulation pump only starts when hot water is drawn by a consumer and the hot water temperature in the hot water network is below the set temperature, and then is switched off when the hot water tap ends or the water temperature in the hot water network corresponds to the set temperature. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Zirkulationspumpe nach einer vorbestimmten Zeit wieder abgeschaltet wird.2. The method according to claim 1, characterized in that that the circulation pump after a predetermined Time is turned off again. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Zirkulationspumpe durch einen elektrischen Startimpuls von Hand oder einer Zeitprogrammschalt­ einrichtung eingeschaltet wird. 3. The method according to claim 1, characterized in that the circulation pump by an electrical Start impulse by hand or a time program switch device is switched on.   4. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Zirkulationspumpe durch Ansteuerung von einem Verbraucher eingeschaltet wird.4. The method according to claim 1, characterized in that the circulation pump by controlling one Consumer is switched on. 5. Verfahren nach Anspruch 1 bis 4, dadurch gekennzeich­ net, daß das Warmwasser in der Warmwasserleitung mit einer in Bezug auf Erosion und Strömungsgeräusche maximalen Geschwindigkeit befördert wird.5. The method according to claim 1 to 4, characterized in net that the hot water in the hot water pipe with one in terms of erosion and flow noise maximum speed is transported. 6. Warmwasser-Versorgungssystem zur Durchführung des Verfahrens nach Anspruch 1 bis 5, dadurch gekenn­ zeichnet, daß die in der Zirkulationsleitung (5) angeordnete Zirkulationspumpe (6) mit einem Regler (7) verbunden ist, der mit einem in der Warmwasser- Vorlaufleitung (4) angeordneten Temperatursensor (8) und Strömungssensor (9) oder verbraucherseitigem Einschaltglied (10) verbunden ist.6. Hot water supply system for performing the method according to claim 1 to 5, characterized in that the in the circulation line ( 5 ) arranged circulation pump ( 6 ) is connected to a controller ( 7 ) which with one in the hot water supply line ( 4 ) arranged temperature sensor ( 8 ) and flow sensor ( 9 ) or consumer-side switching element ( 10 ) is connected. 7. Warmwasser-Versorgungssystem nach Anspruch 6, dadurch gekennzeichnet, daß in der Zirkulationsleitung (5) ein mit dem Regler (7) verbundener zweiter Tempera­ tursensor (11) angeordnet ist.7. hot water supply system according to claim 6, characterized in that in the circulation line ( 5 ) with the controller ( 7 ) connected to the second temperature sensor ( 11 ) is arranged. 8. Warmwasser-Versorgungssystem nach Anspruch 6 und 7, dadurch gekennzeichnet, daß der Regler (7) ein Zeit­ schaltglied aufweist.8. Hot water supply system according to claim 6 and 7, characterized in that the controller ( 7 ) has a time switching element. 9. Warmwasser-Versorgungssystem nach Anspruch 6 bis 8, dadurch gekennzeichent, daß die verbraucherseitigen Anschlußleitungen (12) mittels einer Leitung (13) mit Thermostatventil (14) mit der Zirkulationsleitung (5) verbunden sind. 9. hot water supply system according to claim 6 to 8, characterized gekennzeichent that the consumer-side connecting lines ( 12 ) by means of a line ( 13 ) with a thermostatic valve ( 14 ) with the circulation line ( 5 ) are connected. 10. Warmwasser-Versorgungssystem nach Anspruch 9, dadurch gekennzeichnet, daß das Warmwasser-Versorgungssystem (1) in Netzabschnitte mit jeweils einer Zirkulations­ pumpe (6) derart unterteilt ist, daß jedem Zirkula­ tionspumpenkreise ein Rückschlagventil zugeordnet ist.10. Hot water supply system according to claim 9, characterized in that the hot water supply system ( 1 ) is divided into network sections, each with a circulation pump ( 6 ) such that each circulation pump circuits is assigned a check valve. 11. Warmwasser-Versorgungssystem nach Anspruch 6, dadurch gekennzeichnet, daß das Einschaltglied (10) als berührungsloser Schaltsensor ausgebildet ist.11. Hot water supply system according to claim 6, characterized in that the switch-on member ( 10 ) is designed as a non-contact switching sensor.
DE19853522344 1985-06-22 1985-06-22 Method for controlling the temperature of the hot water flowing to consumers connected to a hot water supply system with a circulation line, and hot water supply system for carrying out the method Granted DE3522344A1 (en)

Priority Applications (1)

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DE19853522344 DE3522344A1 (en) 1985-06-22 1985-06-22 Method for controlling the temperature of the hot water flowing to consumers connected to a hot water supply system with a circulation line, and hot water supply system for carrying out the method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853522344 DE3522344A1 (en) 1985-06-22 1985-06-22 Method for controlling the temperature of the hot water flowing to consumers connected to a hot water supply system with a circulation line, and hot water supply system for carrying out the method

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DE3522344A1 true DE3522344A1 (en) 1987-01-02
DE3522344C2 DE3522344C2 (en) 1990-04-26

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EP0674137A1 (en) * 1994-03-23 1995-09-27 Herbert Spiegel Hot water supply system with recirculation
DE4441271A1 (en) * 1994-11-19 1996-05-23 Martin Rahe Hot water supply installation
DE19518910C1 (en) * 1995-05-28 1996-09-05 Richard Hettich Hot water supply system preventing delivery of cold water
DE19516941A1 (en) * 1995-05-09 1996-11-14 Michael Meier Electronic controller controlling delivery of tap water from hot-water tank
DE19631403A1 (en) * 1996-08-04 1998-02-05 Otto Kamp Hot water supply system with heater and re-circulation through outlet point
WO1998052110A1 (en) 1997-05-14 1998-11-19 Mueller Roland Water control device
DE19910096C1 (en) * 1999-03-08 2000-05-31 Guenther Litzba Water, energy saving method for hot water supply systems involves temporarily storing output water, adding to mixer unit when output temp. reaches thermostatically regulated temp.
DE19921715A1 (en) * 1999-05-12 2000-11-16 Stefan Schrodt Reducing water, energy consumption of combination, heating and hot water heating devices during cold start for supplying hot water involves pre-heating heating system to operating temp.
EP1172615A2 (en) * 2000-07-10 2002-01-16 Vaillant GmbH Hot water installation with a hot water accumulator
DE10061971A1 (en) * 2000-12-13 2002-06-20 Holger Raese Method for controlling the circulation pump of a domestic hot water supply system has temperature sensors in the flow and return pipes and a computer
DE10343700A1 (en) * 2003-09-18 2005-05-04 Markus Keitsch System for providing heated service water in a pipe system and valve for its control
EP1619446A1 (en) 2004-07-20 2006-01-25 Wilo Ag Method for controlling a warm water circuit
EP1681515A1 (en) * 2005-01-13 2006-07-19 JRG Gunzenhauser AG Method and device for controlling the circulation in warm water circuits
DE10128444B4 (en) * 2001-06-12 2007-04-19 Clauß, Ulrich, Dr.-Ing. Arrangement and method for demand-controlled automatic control of hot water circulation pumps
DE102006054729B3 (en) * 2006-11-19 2007-10-18 Clauß, Ulrich, Dr.-Ing. Water circulation controller for central hot water supply of building, has custom-memory, where memory value of current valid day time-interval in custom-memory determines output variable of low-pass function
DE102007007414B3 (en) * 2006-11-19 2008-03-06 Clauß, Ulrich, Dr.-Ing. Circulation machine for circulating water circuits in central hot-water supplies from buildings, has circulating pump during start of which no detected current flows within circulation circuit
DE102014004559A1 (en) * 2014-03-31 2015-10-01 Grohe Ag Method and arrangement for providing a mixed water
EP3098522B1 (en) * 2015-04-24 2018-08-01 Gebr. Kemper GmbH + Co. KG Metallwerke Hot water circulation system with an sma controlled valve
WO2020228921A1 (en) * 2018-05-15 2020-11-19 Ltz - Zentrum Für Luft- Und Trinkwasserhygiene Gmbh Method for operating a temperature-controlled circulation system and temperature-controlled circulation system
EP3783269A1 (en) * 2019-08-19 2021-02-24 Solvis GmbH Method for operating a drinking water plant, drinking water plant and control device

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DE19725704A1 (en) * 1997-06-18 1999-02-04 Stefan Schrodt Supply system for domestic hot water
DE29721341U1 (en) * 1997-12-03 1998-02-19 Solmos, Alexander, Ing.(grad), 76461 Muggensturm Electronic control for automatic activation of hot water circulation
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EP0674137A1 (en) * 1994-03-23 1995-09-27 Herbert Spiegel Hot water supply system with recirculation
DE4441271A1 (en) * 1994-11-19 1996-05-23 Martin Rahe Hot water supply installation
DE19516941A1 (en) * 1995-05-09 1996-11-14 Michael Meier Electronic controller controlling delivery of tap water from hot-water tank
DE19516941C2 (en) * 1995-05-09 1999-04-15 Michael Meier Device and method for controlling the delivery of industrial water
DE19518910C1 (en) * 1995-05-28 1996-09-05 Richard Hettich Hot water supply system preventing delivery of cold water
DE19631403C2 (en) * 1996-08-04 2002-04-04 Otto Kamp Hot water supply system
DE19631403A1 (en) * 1996-08-04 1998-02-05 Otto Kamp Hot water supply system with heater and re-circulation through outlet point
WO1998052110A1 (en) 1997-05-14 1998-11-19 Mueller Roland Water control device
DE19910096C1 (en) * 1999-03-08 2000-05-31 Guenther Litzba Water, energy saving method for hot water supply systems involves temporarily storing output water, adding to mixer unit when output temp. reaches thermostatically regulated temp.
DE19921715A1 (en) * 1999-05-12 2000-11-16 Stefan Schrodt Reducing water, energy consumption of combination, heating and hot water heating devices during cold start for supplying hot water involves pre-heating heating system to operating temp.
EP1172615A2 (en) * 2000-07-10 2002-01-16 Vaillant GmbH Hot water installation with a hot water accumulator
EP1172615A3 (en) * 2000-07-10 2003-05-07 Vaillant GmbH Hot water installation with a hot water accumulator
DE10061971A1 (en) * 2000-12-13 2002-06-20 Holger Raese Method for controlling the circulation pump of a domestic hot water supply system has temperature sensors in the flow and return pipes and a computer
DE10128444B4 (en) * 2001-06-12 2007-04-19 Clauß, Ulrich, Dr.-Ing. Arrangement and method for demand-controlled automatic control of hot water circulation pumps
DE10343700A1 (en) * 2003-09-18 2005-05-04 Markus Keitsch System for providing heated service water in a pipe system and valve for its control
EP1619446A1 (en) 2004-07-20 2006-01-25 Wilo Ag Method for controlling a warm water circuit
EP1681515A1 (en) * 2005-01-13 2006-07-19 JRG Gunzenhauser AG Method and device for controlling the circulation in warm water circuits
DE102006054729B3 (en) * 2006-11-19 2007-10-18 Clauß, Ulrich, Dr.-Ing. Water circulation controller for central hot water supply of building, has custom-memory, where memory value of current valid day time-interval in custom-memory determines output variable of low-pass function
DE102007007414B3 (en) * 2006-11-19 2008-03-06 Clauß, Ulrich, Dr.-Ing. Circulation machine for circulating water circuits in central hot-water supplies from buildings, has circulating pump during start of which no detected current flows within circulation circuit
DE102014004559A1 (en) * 2014-03-31 2015-10-01 Grohe Ag Method and arrangement for providing a mixed water
EP3098522B1 (en) * 2015-04-24 2018-08-01 Gebr. Kemper GmbH + Co. KG Metallwerke Hot water circulation system with an sma controlled valve
WO2020228921A1 (en) * 2018-05-15 2020-11-19 Ltz - Zentrum Für Luft- Und Trinkwasserhygiene Gmbh Method for operating a temperature-controlled circulation system and temperature-controlled circulation system
EP3783269A1 (en) * 2019-08-19 2021-02-24 Solvis GmbH Method for operating a drinking water plant, drinking water plant and control device

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