DE102008051687A1 - Solar absorber manufacturing method, involves cutting extruded section in predetermined length, and bending sections such that unchanged sections are arranged next to each other, where unchanged sections are interconnected - Google Patents

Solar absorber manufacturing method, involves cutting extruded section in predetermined length, and bending sections such that unchanged sections are arranged next to each other, where unchanged sections are interconnected Download PDF

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Publication number
DE102008051687A1
DE102008051687A1 DE102008051687A DE102008051687A DE102008051687A1 DE 102008051687 A1 DE102008051687 A1 DE 102008051687A1 DE 102008051687 A DE102008051687 A DE 102008051687A DE 102008051687 A DE102008051687 A DE 102008051687A DE 102008051687 A1 DE102008051687 A1 DE 102008051687A1
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Germany
Prior art keywords
sections
unchanged
absorber
solar absorber
interconnected
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DE102008051687A
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German (de)
Inventor
Lila Menari
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Vaillant GmbH
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Vaillant GmbH
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Publication of DE102008051687A1 publication Critical patent/DE102008051687A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
    • F24S10/75—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/16—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes extruded
    • 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
    • Y02E10/44—Heat exchange systems

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The method involves cutting an extruded section in a predetermined length. The extruded section is sub-divided into unchanged sections and sections for removing absorber surfaces (3) such that an integrated line (2) remains left, where the unchanged sections are equal in length. The sections are bent such that the unchanged sections are arranged next to each other, where the unchanged sections are interconnected. The absorber surfaces are evenly, wavy or angularly arranged.

Description

Die Erfindung bezieht sich auf ein Verfahren zur Herstellung eines Solar-Absorbers.The The invention relates to a method for producing a solar absorber.

Solarabsorber bestehen häufig aus Leitungen, welche mit Absorberflächen verschweißt sind. Die mittels der Absorberflächen eingefangene Solarwärme wird dann über die Schweißnaht auf die Leitungen übertragen und von dort auf ein Fluid übertragen. Hierbei ergibt sich das Problem, dass die Wärmeübertragung sehr stark von der Qualität der Schweißnaht abhängig ist.solar absorber exist frequently from lines that are welded to absorber surfaces. The by means of the absorber surfaces captured solar heat will then over the weld transferred to the lines and transferred from there to a fluid. This results in the problem that the heat transfer very much from the quality the weld dependent is.

Aufgabe der vorliegenden Erfindung ist es daher, ein Verfahren zur Herstellung eines Solarabsorbers zu schaffen, welches eine einfache Herstellung ermöglicht und den thermischen Betrieb des Solarabsorbers dabei begünstigt.task It is therefore the object of the present invention to provide a process for the preparation to create a solar absorber, which is a simple production allows and favors the thermal operation of the solar absorber.

Erfindungsgemäß wird dies zunächst gemäß den Merkmalen des Anspruchs 1 dadurch gelöst, dass der Solarabsorber aus einem Strangpressprofil mit einer integrierten Leitung sowie Absorberflächen hergestellt wird. Das Strangpressprofil wird auf eine bestimmte Länge geschnitten, anschließend werden aus diesem Profil in bestimmten Abständen Absorberflächen entfernt, so dass lediglich Leitungen übrig bleiben. Anschließend werden die Abschnitte, die nur noch aus Leitungen bestehen, derart gebogen, dass die unveränderten Abschnitte nebeneinander angeordnet sind.According to the invention this is first according to the characteristics of claim 1 solved by that the solar absorber made of an extruded profile with an integrated Conduction and absorber surfaces produced becomes. The extruded profile is cut to a certain length, subsequently are removed from this profile at certain intervals absorber surfaces, so that only lines remain. Subsequently become the sections that consist only of lines, so bent that the unchanged Sections are arranged side by side.

Vorteilhafte Ausgestaltungen ergeben sich aus den Merkmalen der Unteransprüche. So sollten die unveränderten Abschnitte gleich lang sein. Nach dem Biegen können diese unveränderten Abschnitte miteinander verbunden werden. Sind die Abschnitte, welche nur noch aus Leitungen bestehen, so lang wie die Hälfte des Strangpressprofils multipliziert mit der Kreiszahl π, so können die Biegungen kreisförmig und somit druckverlustarm sein. Die Absorberflächen sind in der Regel beidseitig der Leitung angeordnet. Sie können eben, wellig oder winkelig angeordnet sein.advantageous Embodiments result from the features of the subclaims. So should be the unchanged ones Sections are the same length. After bending, these can be unchanged Sections are interconnected. Are the sections which consist only of lines as long as half of the Extruded profiles multiplied by the circle number π, so the Bends circular and thus be low pressure loss. The absorber surfaces are usually on both sides arranged the line. You can be flat, wavy or angular.

Die Erfindung wird nun anhand der Figuren detailliert erläutert. Hierbei zeigenThe The invention will now be explained in detail with reference to FIGS. in this connection demonstrate

1 ein Strangpressprofil mit einer integrierten Leitung und Absorberflächen, 1 an extruded profile with an integrated pipe and absorber surfaces,

2 das Strangpressprofil von Oben vor der Bearbeitung, 2 the extruded profile from above before processing,

3 das Strangpressprofil nach Entfernen von Absorberflächen, 3 the extruded profile after removal of absorber surfaces,

4 der fertig gebogene Solarabsorber sowie die 4 the finished curved solar absorber and the

5 bis 8 Profile alternativer Strangpressprofile. 5 to 8th Profiles of alternative extruded profiles.

Bei einem erfindungsgemäßen Herstellverfahren eines Solarabsorbers wird zunächst ein Strangpressprofil wie in 1 dargestellt, extrudiert. Das Strangpressprofil enthält eine integrierte Leitung 2 mit beidseitig angeordneten Absorberflächen 3. Die Absorberflächen 3 sind in diesem Fall oberhalb der integrierten Leitung 2 angebracht.In an inventive manufacturing method of a solar absorber is first an extruded profile as in 1 shown, extruded. The extruded profile contains an integrated cable 2 with absorber surfaces arranged on both sides 3 , The absorber surfaces 3 are in this case above the integrated line 2 appropriate.

2 zeigt das Strangpressprofil mit der bestimmten Länge von unten betrachtet. Aus dem Strangpressprofil werden alternierend auf bestimmten Längen Absorberflächen 3 entfernt, so dass lediglich die Leitung 2 übrig bleibt. Es entsteht ein Gebilde, in dem sich die Absorberflächen 3 und die einzelnen Leitungen 2 alternierend abwechseln, so wie in 3 dargestellt. In einem weiteren Verfahrensabschnitt werden die freien Leitungsabschnitte derart umgebogen, dass die Absorberflächen 3, welche übrig bleiben, nebeneinander zum Liegen kommen. Es entsteht ein kompletter Solarabsorber 1. 2 shows the extruded profile with the specific length viewed from below. From the extruded profile are alternately on certain lengths absorber surfaces 3 removed, leaving only the line 2 remains. The result is a structure in which the absorber surfaces 3 and the individual lines 2 alternate alternately, as in 3 shown. In a further method section, the free line sections are bent in such a way that the absorber surfaces 3 , which remain, next to each other to lie down. The result is a complete solar absorber 1 ,

5 zeigt ein Strangpressprofil mit mittiger Leitung 2 sowie Absorberflächen 3, deren Erstreckung durch den Mittelpunkt der Leitung 2 verläuft. 6 zeigt ein Strangpressprofil, bei dem die Absorberflächen 3 winkelig angeordnet sind. 7 zeigt ein W-förmiges Profil der Absorberflächen. Das Strangpressprofil gemäß 8 zeichnet sich durch eine hohe Stabilität aus. 5 shows an extruded profile with a central line 2 as well as absorber surfaces 3 whose extension through the center of the pipe 2 runs. 6 shows an extruded profile, in which the absorber surfaces 3 are arranged angularly. 7 shows a W-shaped profile of the absorber surfaces. The extruded profile according to 8th is characterized by a high stability.

Claims (6)

Verfahren zur Herstellung eines Solarabsorbers (1) aus einem Strangpressprofil mit einer integrierten Leitung (2) sowie Absorberflächen (3), dadurch gekennzeichnet, dass ein Strangpressprofil auf eine bestimmte Länge Lges geschnitten wird, das Strangpressprofil der Länge Lges alternierend in unveränderte Abschnitte sowie Abschnitte, in denen die Absorberflächen (3) entfernt werden, so dass nur noch die Leitung (2) übrig bleibt, unterteilt wird und anschließend die Abschnitte, die nur noch aus der Leitung (2) bestehen, derart gebogen werden, dass die unveränderten Abschnitte nebeneinander angeordnet sind.Process for producing a solar absorber ( 1 ) of an extruded profile with an integrated line ( 2 ) as well as absorber surfaces ( 3 ), characterized in that an extruded profile is cut to a certain length L ges , the extruded profile of length L ges alternately in unchanged sections and sections in which the absorber surfaces ( 3 ) are removed so that only the line ( 2 ) is left, and then the sections that are only from the line ( 2 ) are bent in such a way that the unchanged sections are arranged side by side. Verfahren zur Herstellung eines Solarabsorbers nach Anspruch 1, dadurch gekennzeichnet, dass die unveränderten Abschnitte gleich lang sind.Process for producing a solar absorber according to Claim 1, characterized in that the unchanged Sections are the same length. Verfahren zur Herstellung eines Solarabsorbers nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die unveränderten Abschnitte miteinander verbunden werden.Process for producing a solar absorber according to one of the claims 1 or 2, characterized in that the unchanged sections with each other get connected. Verfahren zur Herstellung eines Solarabsorbers nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass Abschnitte, die nur noch aus der Leitung (2) bestehen, eine Länge von ännähernd der Hälfte des Produkts der Breite B des Strangpressprofils multipliziert mit der Kreiszahl π haben.Process for producing a solar absorber Bers according to one of claims 1 to 3, characterized in that sections which only from the line ( 2 ), having a length of approximately half the product of the width B of the extruded profile multiplied by the circle number π. Verfahren zur Herstellung eines Solarabsorbers nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die die Absorberflächen (3) beidseitig der Leitung (2) angeordnet sind.Process for producing a solar absorber according to one of Claims 1 to 4, characterized in that the absorber surfaces ( 3 ) on both sides of the line ( 2 ) are arranged. Verfahren zur Herstellung eines Solarabsorbers nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Absorberflächen (3) eben, wellig oder winkelig angeordnet sind.Process for producing a solar absorber according to one of Claims 1 to 4, characterized in that the absorber surfaces ( 3 ) are even, wavy or angularly arranged.
DE102008051687A 2007-10-22 2008-10-15 Solar absorber manufacturing method, involves cutting extruded section in predetermined length, and bending sections such that unchanged sections are arranged next to each other, where unchanged sections are interconnected Withdrawn DE102008051687A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1697/2007 2007-10-22
AT0169707A AT505963A3 (en) 2007-10-22 2007-10-22 METHOD FOR PRODUCING A SOLAR ABSORBENT

Publications (1)

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DE102008051687A1 true DE102008051687A1 (en) 2009-04-23

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DE102008051687A Withdrawn DE102008051687A1 (en) 2007-10-22 2008-10-15 Solar absorber manufacturing method, involves cutting extruded section in predetermined length, and bending sections such that unchanged sections are arranged next to each other, where unchanged sections are interconnected

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AT (1) AT505963A3 (en)
DE (1) DE102008051687A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011094770A2 (en) * 2010-01-29 2011-08-04 Aqua Filter (Pty) Ltd Solar heat collecting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011094770A2 (en) * 2010-01-29 2011-08-04 Aqua Filter (Pty) Ltd Solar heat collecting device
WO2011094770A3 (en) * 2010-01-29 2012-04-26 Aqua Filter (Pty) Ltd Solar heat collecting device
AP3790A (en) * 2010-01-29 2016-08-31 Aqua Filter Pty Ltd Solar heat collecting device

Also Published As

Publication number Publication date
AT505963A2 (en) 2009-05-15
AT505963A3 (en) 2009-10-15

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