DE19908014C1 - Accumulator collector for concentration and accumulation of solar energy has only one accumulator container acting as primary unit connected in medium circuit - Google Patents

Accumulator collector for concentration and accumulation of solar energy has only one accumulator container acting as primary unit connected in medium circuit

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Publication number
DE19908014C1
DE19908014C1 DE19908014A DE19908014A DE19908014C1 DE 19908014 C1 DE19908014 C1 DE 19908014C1 DE 19908014 A DE19908014 A DE 19908014A DE 19908014 A DE19908014 A DE 19908014A DE 19908014 C1 DE19908014 C1 DE 19908014C1
Authority
DE
Germany
Prior art keywords
storage
collector
accumulator
primary
solar energy
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.)
Expired - Fee Related
Application number
DE19908014A
Other languages
German (de)
Inventor
Gerold Wenisch
Stefan Ewering
Juergen Kosok
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.)
Robert Bosch GmbH
Original Assignee
Buderus Heiztechnik GmbH
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 Buderus Heiztechnik GmbH filed Critical Buderus Heiztechnik GmbH
Priority to DE19908014A priority Critical patent/DE19908014C1/en
Application granted granted Critical
Publication of DE19908014C1 publication Critical patent/DE19908014C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00—Arrangements for storing heat collected by solar heat collectors
    • F24S60/30—Arrangements for storing heat collected by solar heat collectors storing heat in liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S90/00—Solar heat systems not otherwise provided for
    • F24S90/10—Solar heat systems not otherwise provided for using thermosiphonic circulation
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Central Heating Systems (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

The collector (2) is used for catchment and accumulation of energy and has only one accumulator container acting as primary unit which is connected in the medium circuit. A further accumulator container acts as secondary accumulator to the primary. In accordance with the thermosyphon principle, the secondary accumulator is loaded with heated water from the primary.

Description

Die Erfindung betrifft einen Speicherkollektor nach dem Oberbegriff des Patentanspruches 1. Ein solcher Speicherkollektor ist der DE 92 15 867 U1 zu entnehmen.The invention relates to a storage collector according to the preamble of the claim 1. Such a storage collector can be found in DE 92 15 867 U1.

Im Gegensatz zu Solaranlagen mit Kollektoren, einem Solarspeicher und Anlagenkompo­ nenten bildet ein Speicherkollektor eine Einheit aus einem Kollektor zum Auffangen und einem oder mehreren Speicherbehältern zum Speichern der Sonnenenergie. Dabei strömt ein Medium (= Wasser mit einem Frostschutz) durch den Kollektor. Es steigt infolge der Er­ wärmung im Kollektor nach oben, strömt dann durch Wärmetauscher in den Speicher­ behältern und nach der Abkühlung und Abwärtsströmung wieder in den Kollektor zurück. Es handelt sich dabei um eine reine Schwerkraftzirkulation.In contrast to solar systems with collectors, a solar storage and system compo a storage collector forms a unit from a collector for collecting and one or more storage tanks for storing solar energy. It flows a medium (= water with frost protection) through the collector. It rises as a result of the He The collector heats up and then flows through the heat exchanger into the storage tank container and back into the collector after cooling and downflow. It is a pure gravity circulation.

Bei einem Speicherkollektor aus einem Kollektor und mehreren in der Ebene unter diesem angeordneten Speicherbehältern aus nebeneinanderliegenden Einzelspeichern ist ein an­ nähernd gleichmäßiges Beladen der Speicher kaum möglich, weil wegen der niedrigen Volumenströme im Kollektor bei gleichzeitig hohem Temperaturunterschied zwischen Kollektorvor- und -rücklauf keine ausreichende Schwerkraftzirkulation auftritt. Der ohnehin geringe Volumenstrom wird durch die zusätzlichen hydraulischen Widerstände beim Durchströmen mehrerer Wärmetauscher weiter stark reduziert. Somit findet keine voll­ ständige Beladung der Speicher statt.In the case of a storage collector consisting of one collector and several in the level below this arranged storage containers from adjacent individual storage is on nearly even loading of the storage is hardly possible because of the low Volume flows in the collector with a high temperature difference between Adequate gravity circulation occurs when the collector feeds and returns. The anyway low volume flow is due to the additional hydraulic resistances Flow through several heat exchangers further greatly reduced. So none finds full constant loading of the storage takes place.

Der Erfindung liegt die Aufgabe zugrunde, einen Speicherkollektor mit mehreren in der Ebene unter dem Kollektor liegenden Speicherbehältern zu schaffen, bei dem der Schwer­ kraftzirkulation des Mediums im Interesse einer optimalen Speicherladung möglichst wenig Widerstand entgegengesetzt wird. The invention has for its object a storage collector with several in the To create a level under the collector storage tanks where the heavy Force circulation of the medium as little as possible in the interest of an optimal storage charge Resistance is opposed.  

Der erfindungsgemäße Speicherkollektor besitzt die im Patentanspruch 1 genannten Merkmale. Er ist so gestaltet, daß nur einer der Speicherbehälter als Primärspeicher in den Kreislauf des Mediums eingeschaltet ist, während die weiteren Speicherbehälter als Sekundärspeicher dem Primärspeicher zugeordnet und nach dem Thermosyphon-Prinzip mit aufgeheiztem Wasser aus diesem zu beladen sind.The storage collector according to the invention has those mentioned in claim 1 Characteristics. It is designed so that only one of the storage containers as the primary storage in the Circuit of the medium is turned on, while the other storage tank as Secondary storage assigned to the primary storage and based on the thermosiphon principle are to be loaded with heated water from it.

Es ist bewußt nicht mehr jeder Einzelspeicher in den Kreislauf des Mediums eingeschaltet, damit den an sich bereits geringen Volumenströmen ein möglichst geringer Widerstand entgegengesetzt wird. Dadurch wird die Wärmeübertragung vom Kollektor zu den Speichern verbessert. Nur noch einer der Speicher als Primärspeicher nimmt die Wärme vom Kollektor direkt auf. Die anderen Speicher als Sekundärspeicher werden hingegen nach dem Thermosyphon-Prinzip aus dem Primärspeicher mit aufgeheiztem Wasser be­ laden. Somit ist sowohl die Wärmeübertragung vom Kollektor zu den Speichern als auch die Beladung der Speicher optimal.It is deliberately no longer every individual storage tank that is switched into the medium cycle, with this, the lowest possible resistance to the already low volume flows is opposed. This will transfer heat from the collector to the Saving improved. Only one of the stores as the primary store takes the heat directly from the collector. The other stores as secondary stores, however, are according to the thermosiphon principle from the primary storage with heated water load. Thus, both the heat transfer from the collector to the stores as well loading the storage optimally.

Statt einer Splittung der Zirkulation in mehrere Vor- und Rücklaufrohre zwischen dem Kollektor und den Speichern ist jetzt nur noch ein Vor- und ein Rücklaufrohr erforderlich, durch die das Medium gebündelt strömt. Die Speicher selbst sind durch obere und untere Verbindungsstutzen miteinander verbunden, durch welche ein freies Zirkulieren des Wassers nach dem Thermosyphon-Prinzip ermöglicht wird.Instead of splitting the circulation into several supply and return pipes between the Collector and the storage tanks, now only one forward and one return pipe are required, through which the medium flows bundled. The stores themselves are by upper and lower Connection piece connected to each other, through which a free circulation of the Water is made possible according to the thermosiphon principle.

Die Zeichnung stellt ein Ausführungsbeispiel der Erfindung dar. Es zeigt:The drawing shows an embodiment of the invention. It shows:

Fig. 1: Einen vertikalen Schnitt durch den Speicherkollektor und Fig. 1: A vertical section through the storage collector and

Fig. 2: Die Ansicht A aus Fig. 1. Fig. 2: A view of Fig. 1.

Der Speicherkollektor besteht aus einem Kollektor 1 und im dargestellten Fall aus drei in der Ebene unter diesem angeordneten Speicherbehältern 2. Von diesen sind der mittlere als Primärspeicher 2' und die beiden seitlichen als Sekundärspeicher 2'' ausgebildet. Das bei Sonneneinstrahlung durch Schwerkraft im Kollektor 1 aufsteigende Medium wird in einem gemeinsamen Vorlaufrohr 3 gesammelt und in das Wärmetauscherrohr 4 im Primärspeicher 2' geleitet. Hier gibt es Wärme an das Wasser im Primärspeicher 2' ab und sinkt infolge der Abkühlung nach unten, von wo es durch das Rücklaufrohr 5 in den Kollektor 1 zurückströmt. Der Primärspeicher 2' ist durch obere und untere Verbindungs­ stutzen 6, 7 mit den Sekundärspeichern 2'' verbunden. Es entsteht ein Thermosyphon- Effekt, wodurch sich die Sekundärspeicher 2'' indirekt über den Primärspeicher 2' aufladen. Wesentlich ist die Tatsache, daß nur einer der Speicherbehälter vom Medium durchströmt wird, wodurch der Widerstand im Wärmetauscher 4 möglichst gering gehalten und die Schwerkraftzirkulation möglichst wenig behindert wird.The storage collector consists of a collector 1 and, in the case shown, three storage containers 2 arranged in the plane below this. Of these, the middle one is designed as a primary store 2 'and the two side stores are designed as a secondary store 2 ''. The medium rising as a result of gravity in the collector 1 is collected in a common flow pipe 3 and passed into the heat exchanger pipe 4 in the primary store 2 '. Here there is heat to the water in the primary storage 2 'and sinks due to the cooling down, from where it flows back through the return pipe 5 into the collector 1 . The primary storage 2 'is connected by upper and lower connecting piece 6 , 7 to the secondary storage 2 ''. The result is a thermosiphon effect, whereby the secondary storage 2 '' indirectly via the primary storage 2 'charge. It is essential that only one of the storage containers is flowed through by the medium, as a result of which the resistance in the heat exchanger 4 is kept as low as possible and the circulation of gravity is impeded as little as possible.

Claims (3)

1. Speicherkollektor zum Auffangen und Speichern von Sonnenenergie bestehend aus einem Kollektor (1) und mehreren in der Ebene unter diesem angeordneten, durch Schwerkraft von dem im Kollektor (1) erwärmten Medium durchströmten Speicherbe­ hältern (2), dadurch gekennzeichnet, daß nur einer der Speicherbehälter als Primärspeicher (2') in den Kreislauf des Mediums eingeschaltet ist, während die weiteren Speicherbehälter als Sekundärspeicher (2'') dem Primärspeicher (2') zugeordnet und nach dem Thermosyphon- Prinzip mit aufgeheiztem Wasser aus diesem zu beladen sind.1. Storage collector for collecting and storing solar energy consisting of a collector ( 1 ) and several arranged in the plane below this, by gravity from the heated in the collector ( 1 ) medium flowing through the storage tank ( 2 ), characterized in that only one of the Storage tank as primary storage ( 2 ') is switched on in the circuit of the medium, while the further storage tanks as secondary storage ( 2 '') are assigned to the primary storage ( 2 ') and are to be loaded with heated water from the storage tank according to the thermosiphon principle. 2. Speicherkollektor nach Anspruch 1, dadurch gekennzeichnet, daß das im Kollektor (1) infolge der Sonneneinstrahlung sich erwärmende und dadurch flächig aufsteigende Medium durch ein Vorlaufrohr (3) einem den Primärspeicher (2') durchdringenden Wärmetauscherrohr (4) und nach dem Ab­ strömen und Abkühlen in diesem durch ein Rücklaufrohr (5) wieder zum Kollektor (1) strömt.2. Storage collector according to claim 1, characterized in that the heating in the collector ( 1 ) due to the solar radiation and thereby flat rising medium through a feed pipe ( 3 ) a primary storage ( 2 ') penetrating heat exchanger tube ( 4 ) and flow after Ab and cooling in this flows through a return pipe ( 5 ) back to the collector ( 1 ). 3. Speicherkollektor nach den Ansprüchen 1 und 2, gekennzeichnet durch obere und untere Verbindungsstutzen (6, 7) zwischen dem Primär­ speicher (2') und den Sekundärspeichern (2'') für ein freies Zirkulieren des Wassers und ein Einstellen eines gemeinsamen Temperaturniveaus in allen Speicherbehältern.3. Storage collector according to claims 1 and 2, characterized by upper and lower connecting piece ( 6 , 7 ) between the primary storage ( 2 ') and the secondary storage ( 2 '') for free circulation of the water and setting a common temperature level in all storage tanks.
DE19908014A 1999-02-25 1999-02-25 Accumulator collector for concentration and accumulation of solar energy has only one accumulator container acting as primary unit connected in medium circuit Expired - Fee Related DE19908014C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19908014A DE19908014C1 (en) 1999-02-25 1999-02-25 Accumulator collector for concentration and accumulation of solar energy has only one accumulator container acting as primary unit connected in medium circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19908014A DE19908014C1 (en) 1999-02-25 1999-02-25 Accumulator collector for concentration and accumulation of solar energy has only one accumulator container acting as primary unit connected in medium circuit

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DE19908014C1 true DE19908014C1 (en) 2000-06-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013215687A1 (en) 2013-08-08 2015-03-05 Robert Bosch Gmbh Solar collector module

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3203734A1 (en) * 1982-02-04 1983-08-04 Gerhard Ing. Reisinger (grad.), 7918 Illertissen Heat exchanger system
DE9215867U1 (en) * 1992-11-23 1993-03-04 Ilka Luft- und Kältetechnik GmbH, O-8019 Dresden Solar collector for water heating

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3203734A1 (en) * 1982-02-04 1983-08-04 Gerhard Ing. Reisinger (grad.), 7918 Illertissen Heat exchanger system
DE9215867U1 (en) * 1992-11-23 1993-03-04 Ilka Luft- und Kältetechnik GmbH, O-8019 Dresden Solar collector for water heating

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013215687A1 (en) 2013-08-08 2015-03-05 Robert Bosch Gmbh Solar collector module

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: BBT THERMOTECHNIK GMBH, 35576 WETZLAR, DE

8327 Change in the person/name/address of the patent owner

Owner name: ROBERT BOSCH GMBH, 70469 STUTTGART, DE

R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee