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WO2014096482A1 - Dispositif d'assujettissement de miroirs tournants pour la concentration des rayonnements solaires - Google Patents

Dispositif d'assujettissement de miroirs tournants pour la concentration des rayonnements solaires Download PDF

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Publication number
WO2014096482A1
WO2014096482A1 PCT/ES2013/070822 ES2013070822W WO2014096482A1 WO 2014096482 A1 WO2014096482 A1 WO 2014096482A1 ES 2013070822 W ES2013070822 W ES 2013070822W WO 2014096482 A1 WO2014096482 A1 WO 2014096482A1
Authority
WO
WIPO (PCT)
Prior art keywords
piece
prism
solar radiation
torsion
mirrors
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.)
Ceased
Application number
PCT/ES2013/070822
Other languages
English (en)
Spanish (es)
Inventor
José María MARTÍNEZ-VAL PEÑALOSA
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.)
Universidad Politecnica de Madrid
Original Assignee
Universidad Politecnica de Madrid
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 Universidad Politecnica de Madrid filed Critical Universidad Politecnica de Madrid
Publication of WO2014096482A1 publication Critical patent/WO2014096482A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
    • F24S30/425—Horizontal axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S2023/83—Other shapes
    • F24S2023/832—Other shapes curved
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S2025/6003—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules by clamping
    • 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
    • Y02E10/47—Mountings or tracking

Definitions

  • the invention falls within the field of solar power plants that require concentration of the original radiation, which in this case is reflected by a series of longitudinal mirrors whose longest axes are horizontal or slightly inclined, and orientable in a transverse direction by turning around a longitudinal axis, which virtually coincides with a straight surface of the mirror.
  • the invention is framed in the so-called solar field, which is the set of mirrors with their frames and corresponding focusing elements, to reflect the solar radiation directly from the sun on a receiver of appropriate material, either thermal, or photovoltaic; and the mirrors in question are aligned parallel to each other, forming what is called a Fresnel reflection device.
  • the invention has an immediate background, particularly in patent ES2345427 B2, which deals with a concentrating device for solar radiation, with longitudinal mirrors, rotating around its longest axis, these axes being parallel to each other and parallel in turn to the face. activates the receiver in its longitudinal direction.
  • patent ES2345427 B2 deals with a concentrating device for solar radiation, with longitudinal mirrors, rotating around its longest axis, these axes being parallel to each other and parallel in turn to the face. activates the receiver in its longitudinal direction.
  • the first inventor of said patent is the same who signs the present application.
  • the mirrors rotate around an axis that, as anticipated, coincides with a longitudinal line on the specifically specular surface. But in turn the mirrors are made by successive longitudinal modules, which must virtually share the shaft, which in turn must have a real mechanical support for the assembly to rotate.
  • the problem to be solved is to provide mirrors with axes and axes with supports, which meet the movement requirements of the mirror and its axis, in the successive modules that constitute it.
  • the mirrors can be several hundred meters, and the modules 10 m long or so, so it requires several devices that support the modules at their ends, and in turn give continuity to the axis, which logically can not have a light of several hundred meters, and you need intermediate supports, which make up a device that meets the requirements presented.
  • the invention comprises a base piece or foot of the support, topped off by a semi-cylindrical adjustment piece of semicircular section, on which rests the connecting piece, which is circular cylindrical, within which the components are assembled.
  • torsion prism of the module prior to the support considered counting said modules in the sense of their assembly, this prism being square or rectangular, with an internal hollow; and the base of the mirror being jointly and severally attached to it by one of the faces of the prism, which we call the upper face;
  • torsion prism of the module following the support considered of characteristics equal to the previous prism, or first prism and extending in its extension; diametral plate arranged on both torsion prisms, the upper face of said plate coinciding with the horizontal diameter of the connecting piece, when the torsion prisms are in the reference position, which is the position of keeping the modules facing upwards.
  • said diametral plate having a thickness coinciding with that of the base plate or substrate of the mirror at its midpoint:
  • the lengths of the symmetrical prism and the diametral plates being equal to the length of the connecting piece, with a clearance of plus or minus five percent;
  • torsion prisms plus the diametral plates, plus the symmetrical prism, inscribed on the inner face of the connecting piece, and integral with it by its vertices, either by welding, or by adhesive, depending on the nature of the pieces, selected from metallic, plastic, fiberglass or other fibers and composites.
  • connection piece and the connection piece itself are drilled in a vertical direction, measured in this direction in the reference position, at least by two sets of matching holes, each of said sets of holes being pierced by a pin that crosses from top to bottom, and that is attached by each end to the outer face of the connecting piece, by means of a tightening thread with its pressure washer.
  • a counterweight is located on the outer face of the connecting piece, said counterweight being also drilled, and held by the upper clamping thread of the corresponding pin , which therefore clings to the counterweight, which in turn presses on the outer face of the connecting piece.
  • the mass of the counterweight and the distance from its center of mass to the axis of rotation of the system, which is the axis of the cylinder that constitutes the connecting piece, is such that its product equals the product of half the mass of the previous module mirror, including all the elements suspended with the torsion prism, and the prism itself, multiplied said mass by the perpendicular distance from the center of mass of that particular suspended mass, to the axis of rotation of the system, which coincides with the axis of rotation of the mirror.
  • connection piece Around the outer face of the connection piece a ring or flange is grounded, integral with the connection piece itself by welding or adhesive cord.
  • connection piece rests and can rotate on the semicircular part of the adjustment part, which has a transverse groove in which the ring or flange flap is housed, said adjustment part containing rollers with longitudinal axis, on which the connection piece truly rests on its outer face, said rollers being able to rotate freely as the connection piece rotates on them.
  • a tube of diameter of the order of the millimeter which constitutes the longitudinal collimation peephole of the axle support devices.
  • the adjustment piece is integral with the base piece or support foot, having on one side of its semicircular shape a support mechanism with rotation around a bolt embedded in the base piece, and which acts as the axis of the small turn that it is performed to adjust the height of the adjustment piece to the level given by the longitudinal collimation of the axes of the modules; said adjustment piece being supported on the base piece by the other end, by means of a screwed through rod, which crosses both pieces through vertical grooves, the rod being held by its ends when the height produced by the collimation of the axes, testified by a beam of laser light; complementing the lift by means of a pin nail that is located through the corresponding holes made in the vertical walls of the adjustment piece and the base piece.
  • the base piece is made of two pairs of legs, the counterweights are located in the center of the piece of connection, clinging to the zuncho ring, and the rollers are located outside the counterweights on each side, using a pin rod to fix the adjustment piece to the base, once the collimation is verified.
  • the connecting piece slides, in its follow-up turn to the sun, on fixed raceways at the longitudinal ends of the adjustment piece, which clings to the base part by means of a pin rod, with no rollers in this variant.
  • Figure 1 shows a diagram, in straight section, of the solar device, corresponding to a Fresnel reflection assembly with rotating mirrors.
  • Figure 2 shows the three-dimensional scheme of a receiver-mirror assembly in the assembly according to the parallel, arranged north of the parallel in the northern hemisphere.
  • Figure 3 shows a cross-section of a mirror, although instead of a torsion prism, the mirror is supported by a solid semi-cylinder, which can act as a torsion box, but does not have the ideal moment of inertia to reduce deformations of the module by flexion.
  • Figure 4 shows a cross-section of a mirror that has been provided with a torsion prism, which gives the mirror module greater rigidity when it rotates.
  • Figure 5 shows a longitudinal section of the connection piece with its internal elements and its support in the adjustment piece.
  • Figure 6 schematically shows the straight section of the connection piece with its associated elements.
  • Figure 7 shows the connection of the adjustment piece in the base piece, and the reception of the connection piece in the adjustment piece.
  • Figure 8 shows a longitudinal section of the connection piece and its support in the adjustment piece, and of this one adjusted to the base part, when the base part has two pairs of legs, having omitted part of the complete information given in the Figure 5, for the sake of clarity in the explanation of this assembly variant of the invention, although logically all the elements already mentioned are logically inside the connection piece.
  • Figure 9 shows a longitudinal section of the connection piece and its support in the adjustment piece, and of it adjusted to the base part, using a sliding raceway, instead of rollers, on the face of the part of adjustment on which the connection piece rests.
  • Figure 10 shows a longitudinal diagram of the connecting piece with a single central pin rod gripping all its internal elements plus the counterweight, with no ring in this variant.
  • Transverse bracing cables of the pillars or rods (8) are Transverse bracing cables of the pillars or rods (8).
  • Interior elements of the receiver (1) either thermal, or photovoltaic. They are not relevant to the invention.
  • Rotation axis of a specific mirror, figure 3 which coincides with the center point of the mirror itself.
  • Substrate or mirror holder Substrate or mirror holder.
  • Torsion bar which in this case is a solid semi-cylinder, because it corresponds to the previous state of the art, which in this invention is replaced by a true prism.
  • connection piece 30 Adjustment piece, on which the connection piece 30 rests and rolls (turning).
  • Foundation 55 Pin rod for fixing the counterweight 36 to the ring 40.
  • connection piece 30 Retaining tab of connection piece 30.
  • the load w is the sum of the linear weight of the prism, plus the weight of the mirror and its supports.
  • a silver mirror on a rigid plastic plate 2 mm thick, with a density of 1 kg / dm 3 and a transparent glass cover of another 2 mm, with a density of 2.5 kg / dm 3 , to which is added the Weight of 4 triangular frames also of plastic, 10x25x2 cm, which gives a linear weight of 60 N / m, to which we must add w p , which is still unknown, it depends on the prism that is needed.
  • the length of the connection piece can be of the order of its diameter, about 15 cm, for the absorption of the bending moment.
  • the weight of the counterweight As for the weight of the counterweight, it has to balance 152 N / m by 5 meters, and taking into account that the center of mass is approximately 2/2 of the axis of rotation, there is a torque of 38 N m. As the center of mass of the counterweight will be at a distance of about four times the radius, a weight of 38 / 0.28 remains, which gives 135 N, that is, about 13 kg. If lead is used as a counterweight, it would take just over a liter, 1, 20 dm 3 , which It corresponds to a box of 14X14X6 cm, which is of the order of size of the device itself.
  • the first prism would have to be placed inside the connecting cylinder, put the two diametral plates presented, insert the symmetrical prism, present the secondary or shaft extension prism, and finish fitting the diametral plates, after which fixed with welding, once the through rods have been put on, including the clamping of the weights.
  • the connection piece Once the assembly of the connection piece is completed, it must be located at the corresponding height, for which the collimator is provided, inside which the used laser beam must pass.
  • the screw is tightened by gripping the adjustment piece to the base, and immediately passes the through nail from one side to the other of the plates (51) making these two pieces in solidarity, and resting the piece of connection on the rollers of the one of adjustment, what guarantees the functionality of the axis, extended a module after another.

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)
  • Mounting And Adjusting Of Optical Elements (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

Dispositif composé d'une pièce de raccord entre des modules consécutifs d'axes de miroirs longitudinaux qui s'appuie sur une pièce d'ajustement, qui, à son tour, repose sur la pièce de base qui est enracinée dans la fondation. La pièce de raccord est un cylindre vide dans lequel sont assemblés le prisme de torsion du premier module suivi longitudinalement par le second prisme, ainsi que deux plaques diamétrales identiques, dont le miroir coïncide avec celui de la couche du miroir dans l'axe, et un prisme symétrique dans l'autre demi-espace du cylindre. L'assemblage forme un tout dans la pièce de raccord, ce qui garantit la même rotation dans les modules consécutifs qui sont équilibrés pour tourner grâce à un contre-poids incorporé dans la pièce de raccord.
PCT/ES2013/070822 2012-12-20 2013-11-27 Dispositif d'assujettissement de miroirs tournants pour la concentration des rayonnements solaires Ceased WO2014096482A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201201260A ES2396666B1 (es) 2012-12-20 2012-12-20 Dispositivo de sujeción de espejos giratorios para concentración de la radiación solar
ESP201201260 2012-12-20

Publications (1)

Publication Number Publication Date
WO2014096482A1 true WO2014096482A1 (fr) 2014-06-26

Family

ID=47664680

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2013/070822 Ceased WO2014096482A1 (fr) 2012-12-20 2013-11-27 Dispositif d'assujettissement de miroirs tournants pour la concentration des rayonnements solaires

Country Status (2)

Country Link
ES (1) ES2396666B1 (fr)
WO (1) WO2014096482A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6058930A (en) * 1999-04-21 2000-05-09 Shingleton; Jefferson Solar collector and tracker arrangement
US20020078945A1 (en) * 2000-07-06 2002-06-27 Friedrich Funger Apparatus for utilising solar energy
ES1068473U (es) * 2008-07-16 2008-10-16 Juan Ramon Hernamperez Cuesta Seguidor solar para instalaciones de placas fotovoltaicas.
KR100886971B1 (ko) * 2007-11-12 2009-03-09 주식회사 에이스테크 단축식 태양광 트랙커
EP2051022A2 (fr) * 2007-10-19 2009-04-22 Pse Ag Collecteur solaire
US7531741B1 (en) * 2003-03-07 2009-05-12 Sacred Power Corporation Tracking solar shelter
US20110240006A1 (en) * 2010-04-01 2011-10-06 Linke Edward J Solar Tracking System and Method
ES2368402A1 (es) * 2011-09-20 2011-11-17 Grupo Clavijo Elt, S.L. Seguidor solar.
US20120180845A1 (en) * 2011-01-14 2012-07-19 Sunpower Corporation Support for solar energy collectors
US20120216851A1 (en) * 2009-05-07 2012-08-30 Sunedison Solar Power Generation Apparatus Capable of Tracking Sunlight

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2375042B2 (es) * 2009-10-27 2012-09-07 Hierros Y Aplanaciones S.A. (Hiasa) Seguidor solar fotovoltaico.

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6058930A (en) * 1999-04-21 2000-05-09 Shingleton; Jefferson Solar collector and tracker arrangement
US20020078945A1 (en) * 2000-07-06 2002-06-27 Friedrich Funger Apparatus for utilising solar energy
US7531741B1 (en) * 2003-03-07 2009-05-12 Sacred Power Corporation Tracking solar shelter
EP2051022A2 (fr) * 2007-10-19 2009-04-22 Pse Ag Collecteur solaire
KR100886971B1 (ko) * 2007-11-12 2009-03-09 주식회사 에이스테크 단축식 태양광 트랙커
ES1068473U (es) * 2008-07-16 2008-10-16 Juan Ramon Hernamperez Cuesta Seguidor solar para instalaciones de placas fotovoltaicas.
US20120216851A1 (en) * 2009-05-07 2012-08-30 Sunedison Solar Power Generation Apparatus Capable of Tracking Sunlight
US20110240006A1 (en) * 2010-04-01 2011-10-06 Linke Edward J Solar Tracking System and Method
US20120180845A1 (en) * 2011-01-14 2012-07-19 Sunpower Corporation Support for solar energy collectors
ES2368402A1 (es) * 2011-09-20 2011-11-17 Grupo Clavijo Elt, S.L. Seguidor solar.

Also Published As

Publication number Publication date
ES2396666A1 (es) 2013-02-25
ES2396666B1 (es) 2014-01-17

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