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DE4112758A1 - Solar-powered domestic hot water system - has solar collector connected directly to hot water system and thermostats to control supply pump to use available heat, and to avoid overheating and frost damage - Google Patents

Solar-powered domestic hot water system - has solar collector connected directly to hot water system and thermostats to control supply pump to use available heat, and to avoid overheating and frost damage

Info

Publication number
DE4112758A1
DE4112758A1 DE4112758A DE4112758A DE4112758A1 DE 4112758 A1 DE4112758 A1 DE 4112758A1 DE 4112758 A DE4112758 A DE 4112758A DE 4112758 A DE4112758 A DE 4112758A DE 4112758 A1 DE4112758 A1 DE 4112758A1
Authority
DE
Germany
Prior art keywords
hot water
solar
water system
connected directly
collector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE4112758A
Other languages
German (de)
Inventor
Bernhard Meucht
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE4112758A priority Critical patent/DE4112758A1/en
Publication of DE4112758A1 publication Critical patent/DE4112758A1/en
Withdrawn legal-status Critical Current

Links

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
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
    • F24D19/1057—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water the system uses solar energy
    • 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
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • 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
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

In a new method for using solar energy to produce domestic hot water, the solar collector is connected directly to the hot water supply system. A thermostat in the collector switches the supply pump on, and a thermostat in the pump inlet pipe switches it off. A system for protection against freezing switches the pump on when the temperature falls below a predetermined value. USE/ADVANTAGE - Used in solar-powered domestic hot water systems. The proposed system is simpler than indirect water heating systems (two separate storage tanks are not required), and uses only the hot water storage tank already present in most households. Can be easily and inexpensively integrated into existing hot water systems.

Description

Die Erfindung bezieht sich auf eine Sonnenkollektoranlage zur Gewinnung von warmem Brauchwasser durch direktes Ein­ leiten des Kollektors und Speicherung in einem Druckspeicher.The invention relates to a solar collector system for the production of warm service water by direct on direct the collector and store it in a pressure accumulator.

Solare Anlagen zur Gewinnung von warmem Brauchwasser sind Stand der Technik. Die heutigen Anlagen haben meist getrennte Kreisläufe für Brauchwasser und Kollektorkreislauf. Es gibt auch "Thermosyphonanlagen", die das Wasser direkt durch Na­ turumlauf erwärmen. Eine Anlagenprinzip im offenen Kreislauf habe ich im Februar 89 schützen lassen. Der Nachteil dieser Anlage ist das Vorhandensein zweier unabhängiger Wasserspei­ cher für die Solaranlage und den im allgemeinen vorhandenen Spei­ cher der vorhandenen Heizungsanlage. Eine Anlage, die die Be­ nützung des meist vorhandenen Warmwasserspeicher auch für die Solarenergie ermöglicht, soll geschützt werden.Solar systems for the production of hot domestic water are State of the art. Today's plants mostly have separate ones Circulations for industrial water and collector circuit. There is also "thermosiphon systems", which the water directly through Na heat the door circulation. A system principle in an open cycle I had 89 protected in February. The disadvantage of this System is the presence of two independent water spouts cher for the solar system and the generally available storage of the existing heating system. A system that the Be use of the mostly available hot water tank also for the Solar energy enables, should be protected.

Das Prinzip beruht darauf, daß der Warmwasserspeicher, dem ein Solarkollektor zwischengeschaltet ist, durch eine spe­ zielle Steuerung aufgeladen wird.The principle is based on the fact that the hot water tank, the a solar collector is interposed by a spe control is charged.

Das Anlageschema kann der Zeichnung entnommen werden.The system diagram can be found in the drawing.

Der Anschluß an das vorhandene Wassernetz geschieht in der Weise, daß zwischen Rückschlagventil und Speicher ein Wasser­ anschluß angebracht wird. Dadurch ist der Kollektor gegen zu hohen Wasserdruck durch das Rückschlagventil des Speichers gesichert. Diese Wasserleitung führt zum Kollektor. Dazwischen ist eine Zirkulationspumpe und ein Thermostat installiert. Im Kollektor werden zwei weitere Thermostate angebracht. Der Kollektorausgang wird mit dem vorhandenen Warmwassernetz ver­ bunden. Damit kein Warmwasser aus dem Netz in den Kollektor gelangen kann, wird ein Rückschlagventil eingebaut. Zur Ent­ lüftung muß am höchsten Punkt ein automatisches Entlüftungs­ ventil angebracht werden.The connection to the existing water network takes place in the Way that a water between the check valve and memory connection is attached. As a result, the collector is against high water pressure through the check valve of the storage tank secured. This water pipe leads to the collector. Between a circulation pump and a thermostat are installed. Two further thermostats are installed in the collector. The Collector output is ver with the existing hot water network bound. So that no hot water from the network into the collector a check valve is installed. To ent Ventilation must have an automatic vent at the highest point valve are attached.

Die Steuerung erfolgt nach folgendem Prinzip. Wenn durch die Sonneneinstrahlung eine bestimmte Temperatur erreicht ist, wird über den Thermostat im Kollektor die Ladungspumpe ein­ geschaltet und dem Warmwassernetz und dem Speicher Warmwasser zugeführt. An sonnigen Tagen kann mehr Wärme angeboten werden, als sinnvollerweise gespeichert werden kann. Der Thermostat an der Zuleitung schaltet bei Erreichen einer bestimmten Tem­ peratur die Pumpe ab. Dadurch wird der Speicher vor unzulässig hohen Temperaturen, die Verkalken und Verbrühungen zur Folge hätten, geschützt. Zusätzlich wird verhindert, daß gespeicherte Wärme dem Kollektor zuführt wird.The control is based on the following principle. If through that Solar radiation has reached a certain temperature the charge pump is switched on via the thermostat in the collector switched and the hot water network and the storage hot water fed. More warmth can be offered on sunny days can be saved as useful. The thermostat on the supply line switches when a certain tem the pump. This makes the memory illegal high temperatures, which lead to calcification and scalding would have protected. It also prevents saved Heat is supplied to the collector.

Für einen ganzjährigen Betrieb muß die Anlage vor Einfrieren geschützt werden. Ein weiterer Thermostat im Kollektor schal­ tet bei Unterschreiten einer kritischen Temperatur die Ladungs­ pumpe ein und fördert etwas kaltes Wasser in den Kollektor. Da­ durch wird der Kollektor auf höherer Temperatur gehalten.For year-round operation, the system must be frozen to be protected. Another thermostat in the collector charge falls below a critical temperature pump in and pump some cold water into the collector. There the collector is kept at a higher temperature.

Diese Anlage ist, durch ihre Einfachheit, praktisch in jedes vorhandene Warmwassernetz zu integrieren und läßt daraus sehr geringe Kosten erwarten.Due to its simplicity, this system is practically in every to integrate existing hot water network and leaves it very expect low cost.

Claims (3)

1. Solaranlage zur Gewinnung von Brauchwasser, dadurch ge­ kennzeichnet, daß der Kollektor direkt an das Warmwasser­ netz angeschlossen ist.1. Solar system for the production of process water, characterized in that the collector is connected directly to the hot water network. 2. Solaranlage nach Anspruch 1, dadurch gekennzeichnet, daß die Steuerung darauf beruht, daß der Thermostat im Kol­ lektor die Ladepumpe einschaltet und der Thermostat an der Zuleitung sie abschaltet.2. Solar system according to claim 1, characterized in that the control is based on the fact that the thermostat in the col the charge pump switches on and the thermostat on the supply line switches it off. 3. Solaranlage nach Abspruch 1, dadurch gekennzeichnet, daß die Frostschutzsicherung bei Unterschreiten der Mindest­ temperatur die Ladepumpe einschaltet.3. Solar system according to claim 1, characterized in that the antifreeze protection if the minimum is undershot temperature switches on the charge pump.
DE4112758A 1991-04-19 1991-04-19 Solar-powered domestic hot water system - has solar collector connected directly to hot water system and thermostats to control supply pump to use available heat, and to avoid overheating and frost damage Withdrawn DE4112758A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4112758A DE4112758A1 (en) 1991-04-19 1991-04-19 Solar-powered domestic hot water system - has solar collector connected directly to hot water system and thermostats to control supply pump to use available heat, and to avoid overheating and frost damage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4112758A DE4112758A1 (en) 1991-04-19 1991-04-19 Solar-powered domestic hot water system - has solar collector connected directly to hot water system and thermostats to control supply pump to use available heat, and to avoid overheating and frost damage

Publications (1)

Publication Number Publication Date
DE4112758A1 true DE4112758A1 (en) 1992-10-22

Family

ID=6429900

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4112758A Withdrawn DE4112758A1 (en) 1991-04-19 1991-04-19 Solar-powered domestic hot water system - has solar collector connected directly to hot water system and thermostats to control supply pump to use available heat, and to avoid overheating and frost damage

Country Status (1)

Country Link
DE (1) DE4112758A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10320292B3 (en) * 2003-05-07 2005-01-05 Bbt Thermotechnik Gmbh Solar installation regulation method using monitoring of temperature of heat transfer medium at solar collector for control of pump to provide overheating protection
EP1939540A3 (en) * 2006-12-21 2009-05-20 RMSolar A Heating System
CN102654317A (en) * 2011-06-09 2012-09-05 谈华 Solar water heating system with cold-water-free discharge structure
EP1764563A3 (en) * 2005-09-19 2012-12-26 Robert Bosch Gmbh Solar regulator and method for regulating a solar collector installation
DE10341741C5 (en) * 2003-09-08 2014-06-12 Ritter Energie- Und Umwelttechnik Gmbh & Co. Kg solar system
EP2806168A1 (en) * 2013-05-21 2014-11-26 Grundfos Holding A/S Circulation pump unit and solar-thermal assembly
EP3263995A1 (en) * 2016-07-01 2018-01-03 Rinnai Corporation Heat medium circulation device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2518620A1 (en) * 1975-04-26 1976-11-04 Bbc Brown Boveri & Cie PROCESS FOR THE CONTROLLED HEATING OF A LIQUID STORAGE AND STORAGE SYSTEM FOR CARRYING OUT THE PROCESS
DE2800173A1 (en) * 1977-01-11 1978-07-20 Fischer Ag Georg PLANT FOR THE USE OF SOLAR ENERGY FOR HEATING WATER
DE2907657A1 (en) * 1979-02-27 1980-08-28 Messerschmitt Boelkow Blohm Water storage tank with solar heating - has circuit with by=pass path through heat exchanger near tank to avoid freezing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2518620A1 (en) * 1975-04-26 1976-11-04 Bbc Brown Boveri & Cie PROCESS FOR THE CONTROLLED HEATING OF A LIQUID STORAGE AND STORAGE SYSTEM FOR CARRYING OUT THE PROCESS
DE2800173A1 (en) * 1977-01-11 1978-07-20 Fischer Ag Georg PLANT FOR THE USE OF SOLAR ENERGY FOR HEATING WATER
DE2907657A1 (en) * 1979-02-27 1980-08-28 Messerschmitt Boelkow Blohm Water storage tank with solar heating - has circuit with by=pass path through heat exchanger near tank to avoid freezing

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10320292B3 (en) * 2003-05-07 2005-01-05 Bbt Thermotechnik Gmbh Solar installation regulation method using monitoring of temperature of heat transfer medium at solar collector for control of pump to provide overheating protection
DE10320292C5 (en) * 2003-05-07 2012-02-09 Robert Bosch Gmbh Method for controlling a solar system
DE10341741C5 (en) * 2003-09-08 2014-06-12 Ritter Energie- Und Umwelttechnik Gmbh & Co. Kg solar system
EP1764563A3 (en) * 2005-09-19 2012-12-26 Robert Bosch Gmbh Solar regulator and method for regulating a solar collector installation
EP1939540A3 (en) * 2006-12-21 2009-05-20 RMSolar A Heating System
CN102654317A (en) * 2011-06-09 2012-09-05 谈华 Solar water heating system with cold-water-free discharge structure
EP2806168A1 (en) * 2013-05-21 2014-11-26 Grundfos Holding A/S Circulation pump unit and solar-thermal assembly
WO2014187647A1 (en) * 2013-05-21 2014-11-27 Grundfos Holding A/S Circulating pump unit and solar thermal plant
US10508656B2 (en) 2013-05-21 2019-12-17 Grundfos Holding A/S Circulating pump unit and solar thermal plant
EP3263995A1 (en) * 2016-07-01 2018-01-03 Rinnai Corporation Heat medium circulation device
US10094611B2 (en) 2016-07-01 2018-10-09 Rinnai Corporation Heat medium circulation device

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Legal Events

Date Code Title Description
ON Later submitted papers
OP8 Request for examination as to paragraph 44 patent law
8120 Willingness to grant licences paragraph 23
8139 Disposal/non-payment of the annual fee