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FR2922633A1 - Tubular type solar collector for e.g. pre-heating water in swimming pool, has black color central tube for transporting fluid, and transparent external wall maintained at distance from tube by radial walls, where collector is flexible - Google Patents

Tubular type solar collector for e.g. pre-heating water in swimming pool, has black color central tube for transporting fluid, and transparent external wall maintained at distance from tube by radial walls, where collector is flexible Download PDF

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Publication number
FR2922633A1
FR2922633A1 FR0707398A FR0707398A FR2922633A1 FR 2922633 A1 FR2922633 A1 FR 2922633A1 FR 0707398 A FR0707398 A FR 0707398A FR 0707398 A FR0707398 A FR 0707398A FR 2922633 A1 FR2922633 A1 FR 2922633A1
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FR
France
Prior art keywords
collector
tube
solar collector
central tube
flexible
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
FR0707398A
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French (fr)
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FR2922633B1 (en
Inventor
Christine Ferreira
Michel Begassat
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.)
SOTEP SOC TECH EXTRUSION PLAST
Original Assignee
SOTEP SOC TECH EXTRUSION PLAST
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Priority to FR0707398A priority Critical patent/FR2922633B1/en
Publication of FR2922633A1 publication Critical patent/FR2922633A1/en
Application granted granted Critical
Publication of FR2922633B1 publication Critical patent/FR2922633B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00Solar heat collectors using working fluids
    • F24S10/40Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
    • F24S10/45Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00Solar heat collectors using working fluids
    • F24S10/70Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
    • F24S10/73Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits the tubular conduits being of plastic material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S80/50Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings
    • F24S80/52Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings characterised by the material
    • F24S80/525Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings characterised by the material made of plastics
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S2080/09Arrangements for reinforcement of solar collector elements
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems

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  • 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)
  • Photovoltaic Devices (AREA)

Abstract

The collector (1) has a black color central tube (2) for transporting fluid, and a concentric transparent external wall (3) maintained at a distance from the tube by radial walls (4), where the collector is flexible and is made of PVC. The tube has the diameter of 12.5 millimeters, and the collector has the external diameter of 20 millimeters. The tube has a knitted or gimp textile splice (5) for resisting the deformation related to the heat.

Description

COLLECTEUR SOLAIRE SOUPLE L'invention se rapporte à un collecteur solaire. Le développement des énergies renouvelables conduit à la fabrication de plus en plus de système solaire. On distingue la production d'électricité au moyen de panneaux photovoltaïques de la production de chaleur. La majorité de la production de chaleur utilisant l'énergie du soleil se fait à l'aide de collecteur solaire. Un collecteur solaire se compose d'un réseau hydraulique logé dans un caisson fermé dont la face supérieure est transparente. On connait un collecteur d'énergie solaire constitué de tubes rigides de section circulaire dont la partie supérieure ( demi-cylindre) est transparente et la partie inférieure est noire. Lors de l'utilisation de ce tube, la partie transparente doit être positionnée pour laisser passer les rayons du soleil qui sont absorbés par la partie du tube noire et le fluide véhiculé dans le tube. Pour construire un collecteur, on se munie de N tubes noirs et transparents, on les positionne pour qu'ils soient parallèles entre eux et convenablement orientés, la face noire dessous et on raccorde chaque extrémité à un tube extrême l'un servant d'entrée du fluide destiné à circuler dans les tubes et l'autre de sortie. On comprend bien que ces différentes opérations de montage ont une répercussion sur le prix de vente d'un tel dispositif. En effet si le prix de fabrication du tube reste peu élevé, le coût des raccords et du montage de ceux-ci augmentent considérablement le coût final du produit. Les collecteurs solaires ainsi conçus sont nécessairement de forme rectangulaire ou carré. L'invention vise à remédier à ce problème. The invention relates to a solar collector. The development of renewable energies leads to the manufacture of more and more solar system. We distinguish the production of electricity by means of photovoltaic panels from the production of heat. The majority of heat production using the sun's energy is done using solar collector. A solar collector consists of a hydraulic network housed in a closed box whose upper surface is transparent. We know a solar energy collector consists of rigid tubes of circular section whose upper part (half-cylinder) is transparent and the lower part is black. When using this tube, the transparent part must be positioned to allow the sun's rays, which are absorbed by the part of the black tube and the fluid carried in the tube, to pass through. To build a collector, N tubes are provided with black and transparent, they are positioned so that they are parallel to each other and properly oriented, the black face underneath and each end is connected to an extreme tube one serving as input fluid for circulation in the tubes and the other outlet. It is clear that these various assembly operations have an impact on the selling price of such a device. Indeed, if the manufacturing cost of the tube remains low, the cost of the fittings and assembly of these greatly increase the final cost of the product. The solar collectors thus designed are necessarily of rectangular or square shape. The invention aims to remedy this problem.

A cet effet, l'invention se rapporte à un collecteur solaire tubulaire du type comportant une partie noire et une partie transparente, ce collecteur étant caractérisé en ce que, d'une part, il est souple et, d'autre part, il se compose d'un tube central de couleur sombre véhiculant un fluide et d'une paroi externe transparente concentrique maintenue à distance du tube centrale par des parois radiales. For this purpose, the invention relates to a tubular solar collector of the type comprising a black part and a transparent part, this collector being characterized in that, on the one hand, it is flexible and, on the other hand, it is consists of a central tube of dark color conveying a fluid and a concentric transparent outer wall kept at a distance from the central tube by radial walls.

L'invention sera bien comprise à l'aide de la description ci après faite à titre d'exemple non limitatif en regard du dessin qui représente schématiquement : FIG 1 : Une coupe transversale d'un collecteur FIG 2 : un collecteur en position d'utilisation 1 En se reportant au dessin, on voit un collecteur 1 solaire tubulaire destiné à véhiculer un fluide tel un fluide caloporteur. Pour améliorer l'absorption des rayons infra-rouges, une partie 2 du collecteur est en couleur sombre et de préférence noire, l'autre partie 3 étant transparente. The invention will be better understood from the following description given by way of nonlimiting example with reference to the drawing which shows schematically: FIG. 1: A cross-section of a collector FIG 2: a collector in the position of FIG. 1 Referring to the drawing, there is shown a tubular solar collector 1 for conveying a fluid such as a coolant. To improve the absorption of infra-red rays, a portion 2 of the collector is in dark color and preferably black, the other part 3 being transparent.

Selon l'invention, d'une part, le collecteur tubulaire est souple et d'autre part, il se compose d'un tube 2 central de couleur sombre et de préférence noire véhiculant un fluide et d'une paroi 3 externe transparente concentrique maintenue à distance du tube centrale par des parois 4 radiales. Du fait de la souplesse, on peut le disposer en rond ou sous une autre forme 10 géométrique cela étant rendu possible grâce à la souplesse du tuyau. Dans l'espace disponible entre le tube interne et la paroi externe, il y aura de l'air. Cette solution technique a plusieurs avantages : Le premier avantage est qu'il n'est pas nécessaire d'orienter le collecteur pour disposer la face transparente dans la direction du soleil. 15 Le second avantage est que la paroi externe cylindrique agit comme concentrateur des rayons du soleil Le troisième avantage est que l'air emprisonné entre le tube central et la paroi externe forme un isolant lorsque le soleil ne brille plus, Le quatrième avantage résulte de la souplesse du produit qui permet de positionner le 20 collecteur de sorte à former des tronçons parallèles sans que cela nécessite de fractionner le collecteur et d'utiliser un raccord, le collecteur peut prendre des courbes. Il peut être fabriqué en continu et donc avoir une longueur quasi infinie si on le souhaite sans risque de fuite hormis au niveau des raccords nécessaires aux extrémités. De préférence, le tube 2 central est pourvu d'au moins un renfort textile 5 tricoté ou 25 guipé pour résister à la déformation liée à la chaleur. Egalement cela évite que dans les coudes le tube se pince. En effet, le tube central absorbant la chaleur, la matière ( PVC) qui le compose va s'assouplir ce qui va entrainer des déformations dues à la pression du fluide contenu. Le tube central étant chauffé de manière plus importante que la paroi externe 30 maintenue à distance par les ailettes radiales, les forces produites vont tendre à créer des contraintes limitant la durée de vie du collecteur. La présence de ce renfort va limiter ce phénomène. According to the invention, on the one hand, the tubular collector is flexible and on the other hand, it consists of a central tube 2 of dark color and preferably black conveying a fluid and a concentric transparent outer wall 3 maintained remote from the central tube by radial walls 4. Because of the flexibility, it can be arranged in a round or other geometrical form this being made possible thanks to the flexibility of the pipe. In the space available between the inner tube and the outer wall, there will be air. This technical solution has several advantages: The first advantage is that it is not necessary to orient the collector to arrange the transparent face in the direction of the sun. The second advantage is that the cylindrical outer wall acts as a concentrator of the sun's rays. The third advantage is that the air trapped between the central tube and the outer wall forms an insulator when the sun is no longer shining. The fourth advantage results from the product flexibility which makes it possible to position the collector so as to form parallel sections without this requiring the collector to be split and to use a connector, the collector can take curves. It can be manufactured continuously and therefore have an almost infinite length if desired without risk of leakage except at the necessary connections to the ends. Preferably, the central tube 2 is provided with at least one textile reinforcement knitted or covered to withstand heat-related deformation. Also this avoids that in the elbows the tube is pinched. Indeed, the central tube absorbing heat, the material (PVC) that composes it will soften which will cause deformations due to the pressure of the fluid contained. The central tube being heated more than the outer wall 30 kept at a distance by the radial fins, the forces produced will tend to create constraints limiting the lifetime of the collector. The presence of this reinforcement will limit this phenomenon.

La fabrication du collecteur en polychlorure de vinyle se déroule de la manière suivante : extrusion du tube central sur lequel on appose le renfort par exemple par tricotage puis, on dépose une couche 6 de protection verrouillant le tricot. Puis on forme les ailes 4 radiales et de la paroi transparente 3. The manufacture of the polyvinyl chloride collector takes place in the following manner: extrusion of the central tube on which the reinforcement is affixed, for example by knitting, then a protective layer 6 is deposited, locking the knit. Then the radial flanges 4 and the transparent wall 3 are formed.

On aura bien compris que le volume situé entre le tube central et la paroi externe ne véhicule aucun fluide à l'exception de l'air qui fera office d'isolant la nuit. Le produit sera léger comparativement aux collecteurs fabriquée en verre. Il ne sera pas fragile. Sa souplesse permet de le faire épouser les formes du support avec un rayon de 10 courbure minimal. Il peut être utilisé pour remplir la piscine. En effet, on utilise la contenance du collecteur pour pré-chauffer l'eau. Le diamètre intérieur sera de l'ordre de 10 à 20 mm avec une préférence pour le diamètre 12,5 mm qui optimise le débit, la connexion et le transfert thermique.It will be understood that the volume located between the central tube and the outer wall does not carry any fluid with the exception of air that will act as insulation at night. The product will be light compared to collectors made of glass. He will not be fragile. Its flexibility makes it possible to marry the shapes of the support with a radius of minimum curvature. It can be used to fill the pool. Indeed, the capacity of the collector is used to pre-heat the water. The inside diameter will be of the order of 10 to 20 mm with a preference for the diameter 12.5 mm which optimizes the flow, the connection and the heat transfer.

15 Pour un tube interne de 12,5 mm le diamètre du tube externe sera de 20 millimètres. Dans une fonction purement chauffage solaire, le collecteur solaire sera placé dans un caisson de couleur noir fermé par un couvercle transparent notamment en verre. For an inner tube of 12.5 mm the diameter of the outer tube will be 20 millimeters. In a purely solar heating function, the solar collector will be placed in a black box closed by a transparent cover including glass.

Claims (7)

REVENDICATIONS 1. Collecteur solaire tubulaire du type comportant une partie noire et une partie transparente, ce collecteur étant caractérisé en ce que, d'une part, le collecteur tubulaire est souple et d'autre part, il se compose d'un tube (2) centrale noir véhiculant un fluide et d'une paroi (3) externe transparente concentrique maintenue à distance du tube centrale par des parois (4) radiales. 1. A tubular solar collector of the type comprising a black part and a transparent part, this collector being characterized in that, on the one hand, the tubular collector is flexible and on the other hand, it consists of a tube (2) black central conveying a fluid and a concentric transparent outer wall (3) kept at a distance from the central tube by radial walls (4). 2. Collecteur solaire selon la revendication 1 caractérisé en ce que le tube (2) central est pourvu d'au moins un renfort textile (5) tricoté ou guipé. 2. Solar collector according to claim 1 characterized in that the central tube (2) is provided with at least one textile reinforcement (5) knitted or gimped. 3. Collecteur solaire selon la revendication 2 caractérisé en ce que le renfort textile est maintenue par une couche (6) de protection. 3. Solar collector according to claim 2 characterized in that the textile reinforcement is maintained by a layer (6) of protection. 4. Collecteur solaire selon l'une quelconque des revendications précédentes caractérisé en ce que le diamètre du tube central est compris entre 10 et 20 mm. 4. solar collector according to any one of the preceding claims characterized in that the diameter of the central tube is between 10 and 20 mm. 5. Collecteur solaire selon la revendication 4 caractérisé en ce que le diamètre du tube central est de 12,5 mm. 5. solar collector according to claim 4 characterized in that the diameter of the central tube is 12.5 mm. 6. Collecteur solaire selon la revendication 5 caractérisé en ce que le diamètre externe du collecteur est de 20 mm. 6. solar collector according to claim 5 characterized in that the outer diameter of the collector is 20 mm. 7. Collecteur solaire selon l'une quelconque des revendications précédentes caractérisé en ce qu'il est en PVC (polychlorure de vinyle). 20 7. solar collector according to any one of the preceding claims characterized in that it is PVC (polyvinyl chloride). 20
FR0707398A 2007-10-23 2007-10-23 SOFT SOLAR COLLECTOR Expired - Fee Related FR2922633B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0707398A FR2922633B1 (en) 2007-10-23 2007-10-23 SOFT SOLAR COLLECTOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0707398A FR2922633B1 (en) 2007-10-23 2007-10-23 SOFT SOLAR COLLECTOR

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FR2922633A1 true FR2922633A1 (en) 2009-04-24
FR2922633B1 FR2922633B1 (en) 2009-11-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20100218A1 (en) * 2010-07-12 2012-01-13 Brenta Italia S R L SOLAR RADIATION ABSORPTION THERMAL PLANT, PARTICULARLY FOR HOME WATER HEATING

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2554095A1 (en) * 1975-12-02 1977-06-16 Wilfried Ing Grad Kromer Solar collector with double plastic pipe - with direct connection to drinking water supply
GB1516262A (en) * 1976-03-25 1978-06-28 Standard Telephones Cables Ltd Tubular structures
GB1515935A (en) * 1975-11-25 1978-06-28 Walde R Tubing for use in solar heating systems
EP0005665A1 (en) * 1978-05-18 1979-11-28 Tibor Arvai Tubular solar energy absorber
US4471759A (en) * 1981-04-28 1984-09-18 B. Shawn Buckley Method of forming a solar collector or hot water storage tank and solar water heating apparatus using same
GB2299400A (en) * 1995-03-28 1996-10-02 Graeme John Clayton Solar heating element

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1515935A (en) * 1975-11-25 1978-06-28 Walde R Tubing for use in solar heating systems
DE2554095A1 (en) * 1975-12-02 1977-06-16 Wilfried Ing Grad Kromer Solar collector with double plastic pipe - with direct connection to drinking water supply
GB1516262A (en) * 1976-03-25 1978-06-28 Standard Telephones Cables Ltd Tubular structures
EP0005665A1 (en) * 1978-05-18 1979-11-28 Tibor Arvai Tubular solar energy absorber
US4471759A (en) * 1981-04-28 1984-09-18 B. Shawn Buckley Method of forming a solar collector or hot water storage tank and solar water heating apparatus using same
GB2299400A (en) * 1995-03-28 1996-10-02 Graeme John Clayton Solar heating element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20100218A1 (en) * 2010-07-12 2012-01-13 Brenta Italia S R L SOLAR RADIATION ABSORPTION THERMAL PLANT, PARTICULARLY FOR HOME WATER HEATING

Also Published As

Publication number Publication date
FR2922633B1 (en) 2009-11-20

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