WO2018002790A1 - Structure for supporting reflective panels for concentration solar collectors - Google Patents

Structure for supporting reflective panels for concentration solar collectors Download PDF

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Publication number
WO2018002790A1
WO2018002790A1 PCT/IB2017/053757 IB2017053757W WO2018002790A1 WO 2018002790 A1 WO2018002790 A1 WO 2018002790A1 IB 2017053757 W IB2017053757 W IB 2017053757W WO 2018002790 A1 WO2018002790 A1 WO 2018002790A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubular element
cross
central support
supporting structure
reflective panels
Prior art date
Application number
PCT/IB2017/053757
Other languages
French (fr)
Inventor
Luciano Lucatello
Original Assignee
Vetraria Biancadese Di Lucatello & C. S.A.S.
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 Vetraria Biancadese Di Lucatello & C. S.A.S. filed Critical Vetraria Biancadese Di Lucatello & C. S.A.S.
Priority to EP17749517.3A priority Critical patent/EP3475627A1/en
Publication of WO2018002790A1 publication Critical patent/WO2018002790A1/en

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
    • 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
    • F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
    • 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
    • F24S25/10—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface
    • F24S25/13—Profile arrangements, e.g. trusses
    • 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

  • This invention relates to a structure for supporting reflective panels for concentration solar collectors, in particular of the linear parabolic type, made to be assembled on the site of the solar system, guaranteeing a high geometrical precision without the need for complex adjustments of the relative position of the components constituting the structure.
  • the structure for supporting the mirrors assumes particular importance considering the fact that it is necessary to guarantee, on the one hand, a high geometrical accuracy in order to maintain high optical efficiency of the device and, on the other hand, low production costs as it is low intensity energy which requires very large capturing surfaces.
  • the structure for supporting the reflecting panels constituting precisely the mobile part of the linear parabolic solar collector, is normally composed of one or more modules connected in series, wherein each module is composed of a series of cross-members which support the reflecting panels, a load-bearing beam to which the cross-members are connected, and connecting elements between adjacent modules.
  • Structures of this type are very expensive and require complex optimisation during positioning operations. More specifically, the critical aspects are the installation of the structure on the base and the connecting means of the mirrors to the structure. These aspects are very important as it is necessary to guarantee a correct receiving and concentration effect of the solar radiation on the receiving tube. This has a negative effect on the cost of production and installation of the modules.
  • the technical purpose which forms the basis of this invention is to provide a structure for supporting reflective panels for concentration solar collectors which overcomes the above-mentioned drawbacks of the prior art.
  • the aim of this invention is to provide a structure for supporting reflective panels for concentration solar collectors which is constructionally simple and inexpensive.
  • the aim of the invention is also to provide a structure for supporting reflective panels for concentration solar collectors which reduces the complex optimisation activities during installation.
  • FIG. 1 is a schematic perspective representation of a structure for supporting reflective panels in accordance with this invention according to a configuration of use.
  • FIG. 2 is a schematic representation of a detail of the structure of Figure 1. Detailed description of preferred embodiments of the invention
  • the structure denoted in its entirety by the numeral 1 , comprises a central support 2, rotatable about an adjusting axis "X", and at least one cross- member 3 mounted on the central support 2 and extending between a first upper end 3a and a second lower end 3b.
  • the central support 2 is preferably defined by a tube with a circular cross section, however it may be made in accordance with any embodiment, provided it is designed to define a rotation about the adjustment axis "X".
  • a movement unit associated with a base (also not illustrated) and configured for supporting the central support 2 and for rotating it about the adjusting axis "X" to define a movement of tracking the solar radiation, in such a way as to optimise the energy efficiency of the solar concentrator made with the structure 1.
  • the cross-member 3 defines, on the relative front side (defined relative to the "front" area where the solar concentration occurs), a concave receiving area which can be configured for the installation of a plurality of reflective panels 4 (four, in the embodiment illustrated).
  • the cross-member 3 is fixed to the central support 2 in such a way that the central support 2 is positioned in an intermediate portion of the cross- member 3 between the first and second ends 3a, 3b of the cross-member 3.
  • the cross-member 3 comprises a lattice structure having at least one front tubular element 5, facing towards the receiving area, and a rear tubular element 6 connected to the front tubular element 5 and facing a rear area opposite the receiving area.
  • tubular elements 5, 6 in the embodiment illustrated are defined by metal profiles with a square cross section, however, they could have different cross sections.
  • the front 5 and rear 6 tubular elements are respectively fixed to a front portion and a rear portion of the central support 2, in particular by means of threaded members, pins or welding or, in any case, more generally speaking, quick coupling solutions which can be performed in-situ at the time of installation by simple drilling of the profiled sections.
  • the cross-member 3 defines two sections located on opposite sides of the central support 2, in particular an upper cross-section and a lower cross-section, and in this context each front 5 and rear 6 tubular element comprises, respectively, a first portion 5a, 6a forming part of the upper cross-section of the cross-member 3 and a second portion 5b, 6b forming part of the lower cross-section of the cross-member 3.
  • the two portions 5a, 5b; 6a, 6b of each tubular element 5, 6 are connected together (by removable means or by welding or made in one piece in a single tubular element defining the two portions) and connected to the central support 2.
  • the front tubular element 5 has a concave configuration to define a concentration effect of the solar radiation.
  • first portion 5a and the second portion 5b of the front tubular element 5 are rectilinear and are positioned in a mutually unaligned position to define a front concavity suitable for a solar concentration effect.
  • the front tubular element 5 has a 'V shape with the concavity facing away from the central support 2.
  • first portion 5a and the second portion 5b of the front tubular element 5 have a shorter length than the length, respectively, of the first portion 6a and of the second portion 6b of the rear tubular element 6.
  • the first portion 6a and the second portion 6b of the rear tubular element 6 are also rectilinear and are positioned in a mutually unaligned position to define a front concavity suitable for a solar concentration effect.
  • the two portions 5a, 5b of the front tubular element 5 each define a respective area of application of at least one respective panel reflective 4 whilst each portion 6a, 6b of the rear tubular element 6 defines, in the relative cross section between the connection point to the front tubular element 5 and the respective end 3a, 3b opposite the central support 2, a respective area of application of at least one respective reflective panel 4.
  • first portion 5a of the front tubular element 5 and the first portion 6a of the rear tubular element 6 are positioned according to non- parallel orientations to each other and, similarly, the second portion 5b of the front tubular element 5 and the second portion 6b of the rear tubular element 6 are also positioned according to non-parallel orientations to each other.
  • the structure 1 preferably also comprises one or more reinforcing elements 7 which are positioned to mutually connect front 5 and rear 6 tubular elements and which act in conjunction with the tubular elements 5, 6 to form the lattice structure of the cross-member.
  • the structure 1 also comprises one or more supporting arms 8 for a receiver tube (not illustrated and of a known type), each arm having an end applied to the central support 2 and/or to at least one of the above- mentioned front 5 and rear 6 tubular elements by means of threaded members, pins or welding and extending outwards towards the area of concavity defined by the cross-member 2.
  • the plurality of reflective panels 4 are connected to at least the front tubular element 5 using adjustable threaded members 9. Only some of which are shown in Figure 1.
  • Each of the reflective panels 4 is associated with at least three adjustable threaded members 9, two of which are positioned at opposite ends of the panel 4 and the third in a central portion of the panel 4.
  • the reflective panels 4 are made in the form of a rectangle having two long sides and two short sides.
  • the reflective panels 4 are connected to at least the front tubular element 5 by the adjustable threaded members 9, only some of which are shown in Figure 1.
  • Each reflective panel 4 is associated with at least three threaded members 9, two located at opposite ends of the panel 4 and the third in a central portion of the panel 4.
  • the adjustability of the above-mentioned threaded members makes it possible to determine with high precision the centring of the panels relative to the area of the concentration of the radiation and to set a correct curvature of the panels 4.
  • the structure 1 preferably comprises at least two cross-members 3 for each module, positioned on opposite sides, however it is possible that the structure comprises any number of cross- members, in particular only one or more than two.
  • each reflective panel 4 has three threaded members 9 on its long sides and two threaded members 9 on its short sides.
  • each reflective panel 4 is fixed to the two cross-members 3 by at least six threaded members 9 (three per cross-member).
  • this arrangement makes the structure 1 more integral with the reflective panels 4 which otherwise, each having a different reaction to thermal expansion, would lose the preferred arrangement in the configuration of use.
  • the number of reflective panels 4 may also be different from the one expressly described above and illustrated in Figure 1 .
  • the present invention achieves the preset aims, overcoming the disadvantages of the prior art.
  • the structure according to the invention is very inexpensive as it is made by simple tubular elements (in the form, for example, of metal profile sections), the assembly of which can be carried out in situ by means of drilling holes and applying respective connecting elements.
  • the structure is also easy to adjust, thus allowing a marked energy efficiency.

Abstract

Described is a structure for supporting reflective panels for concentration solar collectors, comprising a central support (2) which is rotatable around a regulating axis (X) and at least one cross-member (3) extending between a first end (3a) and a second end (3b) and defining, on its front side, a concave receiving area which can be configured to mount a plurality of reflective panels (4), wherein the cross-member (3) is fixed to the central support (2) in such a way that the central support (2) is positioned in an intermediate portion of the cross-member (3) between the first (3a) and second end (3b), characterised in that the cross-member (3) comprises a lattice structure having at least one front tubular element (5) facing towards the receiving area and one rear tubular element (6) connected to the front tubular element (6) and facing towards a rear area opposite to the receiving area, the front (5) and rear (6) tubular elements being fixed respectively to a front portion and to a rear portion of the central support (2), the front tubular element (5) having a concave configuration for forming a concentration effect of the solar radiation. The plurality of reflective panels (4) is connected to the front tubular element (5) using adjustable threaded members (9). Each of the reflective panels (4) is associated with at least three adjustable threaded members (9), two of which are positioned at opposite ends of the panel (4) and the third in a central portion of the panel (4).

Description

Structure for supporting reflective panels for concentration solar collectors
DESCRIPTION
Technical field
This invention relates to a structure for supporting reflective panels for concentration solar collectors, in particular of the linear parabolic type, made to be assembled on the site of the solar system, guaranteeing a high geometrical precision without the need for complex adjustments of the relative position of the components constituting the structure.
Background art
In the concentration solar systems based on reflection concentrators the structure for supporting the mirrors assumes particular importance considering the fact that it is necessary to guarantee, on the one hand, a high geometrical accuracy in order to maintain high optical efficiency of the device and, on the other hand, low production costs as it is low intensity energy which requires very large capturing surfaces.
The structure for supporting the reflecting panels, constituting precisely the mobile part of the linear parabolic solar collector, is normally composed of one or more modules connected in series, wherein each module is composed of a series of cross-members which support the reflecting panels, a load-bearing beam to which the cross-members are connected, and connecting elements between adjacent modules.
A module of known type is described in patent applications WO2008/145551 and WO2009/095433 in the name of the Applicant, which shows a configuration equipped with plate-like lateral cross- members with an arc-shaped extension applied to a supporting base.
Structures of this type are very expensive and require complex optimisation during positioning operations. More specifically, the critical aspects are the installation of the structure on the base and the connecting means of the mirrors to the structure. These aspects are very important as it is necessary to guarantee a correct receiving and concentration effect of the solar radiation on the receiving tube. This has a negative effect on the cost of production and installation of the modules.
In this context, the technical purpose which forms the basis of this invention is to provide a structure for supporting reflective panels for concentration solar collectors which overcomes the above-mentioned drawbacks of the prior art.
Disclosure of the invention
More specifically, the aim of this invention is to provide a structure for supporting reflective panels for concentration solar collectors which is constructionally simple and inexpensive.
The aim of the invention is also to provide a structure for supporting reflective panels for concentration solar collectors which reduces the complex optimisation activities during installation.
The technical purpose indicated and the aims specified are substantially achieved by a structure for supporting reflective panels for concentration solar collectors comprising the technical features described in one or more of the accompanying claims. The dependent claims correspond to possible embodiments of the invention.
Brief description of the drawings
Further features and advantages of this invention are more apparent from the non-limiting description which follows of a preferred, non-limiting embodiment of a structure for supporting reflective panels for concentration solar collectors. The description is set out below with reference to the accompanying drawings which are provided solely for purposes of illustration without restricting the scope of the invention and in which:
- Figure 1 is a schematic perspective representation of a structure for supporting reflective panels in accordance with this invention according to a configuration of use.
- Figure 2 is a schematic representation of a detail of the structure of Figure 1. Detailed description of preferred embodiments of the invention
The structure, denoted in its entirety by the numeral 1 , comprises a central support 2, rotatable about an adjusting axis "X", and at least one cross- member 3 mounted on the central support 2 and extending between a first upper end 3a and a second lower end 3b.
The central support 2 is preferably defined by a tube with a circular cross section, however it may be made in accordance with any embodiment, provided it is designed to define a rotation about the adjustment axis "X". There is also, not illustrated in the drawing, a movement unit associated with a base (also not illustrated) and configured for supporting the central support 2 and for rotating it about the adjusting axis "X" to define a movement of tracking the solar radiation, in such a way as to optimise the energy efficiency of the solar concentrator made with the structure 1.
The cross-member 3 defines, on the relative front side (defined relative to the "front" area where the solar concentration occurs), a concave receiving area which can be configured for the installation of a plurality of reflective panels 4 (four, in the embodiment illustrated).
The cross-member 3 is fixed to the central support 2 in such a way that the central support 2 is positioned in an intermediate portion of the cross- member 3 between the first and second ends 3a, 3b of the cross-member 3.
Advantageously, the cross-member 3 comprises a lattice structure having at least one front tubular element 5, facing towards the receiving area, and a rear tubular element 6 connected to the front tubular element 5 and facing a rear area opposite the receiving area.
The tubular elements 5, 6 in the embodiment illustrated are defined by metal profiles with a square cross section, however, they could have different cross sections.
The front 5 and rear 6 tubular elements are respectively fixed to a front portion and a rear portion of the central support 2, in particular by means of threaded members, pins or welding or, in any case, more generally speaking, quick coupling solutions which can be performed in-situ at the time of installation by simple drilling of the profiled sections.
In more detail, the cross-member 3 defines two sections located on opposite sides of the central support 2, in particular an upper cross-section and a lower cross-section, and in this context each front 5 and rear 6 tubular element comprises, respectively, a first portion 5a, 6a forming part of the upper cross-section of the cross-member 3 and a second portion 5b, 6b forming part of the lower cross-section of the cross-member 3. The two portions 5a, 5b; 6a, 6b of each tubular element 5, 6 are connected together (by removable means or by welding or made in one piece in a single tubular element defining the two portions) and connected to the central support 2.
The front tubular element 5 has a concave configuration to define a concentration effect of the solar radiation.
In more detail, the first portion 5a and the second portion 5b of the front tubular element 5 are rectilinear and are positioned in a mutually unaligned position to define a front concavity suitable for a solar concentration effect. In other words, the front tubular element 5 has a 'V shape with the concavity facing away from the central support 2.
Moreover, the first portion 5a and the second portion 5b of the front tubular element 5 have a shorter length than the length, respectively, of the first portion 6a and of the second portion 6b of the rear tubular element 6. This allows the two tubular portions 5a, 5b of the front tubular element 5 to each have a first end fixed to the central support 2 and a second end connected to an intermediate portion, respectively, of the first portion 6a and the second portion 6b of the tubular portion 6. Therefore, in this configuration, the two portions 6a, 6b of the rear tubular element 6 extend away from the central support 2 beyond the point of connection with the respective portions 5a, 5b of the front tubular element 5, forming extensions which define the above-mentioned ends 3a, 3b of the cross- member 3. Preferably, the first portion 6a and the second portion 6b of the rear tubular element 6 are also rectilinear and are positioned in a mutually unaligned position to define a front concavity suitable for a solar concentration effect.
In effect, in the configuration shown in Figure 1 , the two portions 5a, 5b of the front tubular element 5 each define a respective area of application of at least one respective panel reflective 4 whilst each portion 6a, 6b of the rear tubular element 6 defines, in the relative cross section between the connection point to the front tubular element 5 and the respective end 3a, 3b opposite the central support 2, a respective area of application of at least one respective reflective panel 4.
Preferably, the first portion 5a of the front tubular element 5 and the first portion 6a of the rear tubular element 6 are positioned according to non- parallel orientations to each other and, similarly, the second portion 5b of the front tubular element 5 and the second portion 6b of the rear tubular element 6 are also positioned according to non-parallel orientations to each other.
It follows that, along the cross-member 3 between the first and the second end 3a, 3b, there are four consecutive areas of application for at least four corresponding reflective panels 4, wherein the four consecutive areas of application are inclined to the adjacent area of application to define a substantially C-shaped configuration (or V-shaped rotated by 90 degrees) of the cross-member 3.
The structure 1 preferably also comprises one or more reinforcing elements 7 which are positioned to mutually connect front 5 and rear 6 tubular elements and which act in conjunction with the tubular elements 5, 6 to form the lattice structure of the cross-member.
The structure 1 also comprises one or more supporting arms 8 for a receiver tube (not illustrated and of a known type), each arm having an end applied to the central support 2 and/or to at least one of the above- mentioned front 5 and rear 6 tubular elements by means of threaded members, pins or welding and extending outwards towards the area of concavity defined by the cross-member 2.
The plurality of reflective panels 4 are connected to at least the front tubular element 5 using adjustable threaded members 9. Only some of which are shown in Figure 1. Each of the reflective panels 4 is associated with at least three adjustable threaded members 9, two of which are positioned at opposite ends of the panel 4 and the third in a central portion of the panel 4.
The structure 1 described above, in association with the above-mentioned base and movement unit (not illustrated) and with the reflective panels 4 mounted, define a concentration solar collector module made according to the inventive concept of this invention.
Preferably, the reflective panels 4 are made in the form of a rectangle having two long sides and two short sides.
Advantageously, the reflective panels 4 are connected to at least the front tubular element 5 by the adjustable threaded members 9, only some of which are shown in Figure 1.
Each reflective panel 4 is associated with at least three threaded members 9, two located at opposite ends of the panel 4 and the third in a central portion of the panel 4. The adjustability of the above-mentioned threaded members makes it possible to determine with high precision the centring of the panels relative to the area of the concentration of the radiation and to set a correct curvature of the panels 4.
According to the invention, the structure 1 preferably comprises at least two cross-members 3 for each module, positioned on opposite sides, however it is possible that the structure comprises any number of cross- members, in particular only one or more than two.
In this way, each reflective panel 4 has three threaded members 9 on its long sides and two threaded members 9 on its short sides. In other words, each reflective panel 4 is fixed to the two cross-members 3 by at least six threaded members 9 (three per cross-member). Advantageously, this arrangement makes the structure 1 more integral with the reflective panels 4 which otherwise, each having a different reaction to thermal expansion, would lose the preferred arrangement in the configuration of use.
Moreover, the number of reflective panels 4 may also be different from the one expressly described above and illustrated in Figure 1 .
The present invention achieves the preset aims, overcoming the disadvantages of the prior art.
In effect, the structure according to the invention is very inexpensive as it is made by simple tubular elements (in the form, for example, of metal profile sections), the assembly of which can be carried out in situ by means of drilling holes and applying respective connecting elements.
The structure is also easy to adjust, thus allowing a marked energy efficiency.

Claims

1. A structure for supporting reflective panels for concentration solar collectors, comprising a central support (2) which is rotatable around a regulating axis (X) and at least one cross-member (3) extending between a first end (3a) and a second end (3b) and defining, on its front side, a concave receiving area which can be configured to mount a plurality of reflective panels (4), wherein the cross-member (3) is fixed to the central support (2) in such a way that the central support (2) is positioned in an intermediate portion of the cross-member (3) between the first (3a) and second end (3b), characterised in that the cross-member (3) comprises a lattice structure having at least one front tubular element (5) facing towards the receiving area and one rear tubular element (6) connected to the front tubular element (5) and facing towards a rear area opposite to the receiving area, the front (5) and rear (6) tubular elements being fixed respectively to a front portion and to a rear portion of the central support (2), the front tubular element (5) having a concave configuration for forming a concentration effect of the solar radiation, characterised in that the plurality of reflective panels (4) are connected to at least the front tubular element (5) by means of adjustable threaded members (9), each of the reflective panels (4) being associated with at least three of the adjustable threaded members (9), two of which are positioned at opposite ends of the panel (4) and the third in a central portion of the panel (4).
2. The supporting structure according to claim 1 , wherein the cross- member (3) forms two sections positioned on opposite sides of the central support (2) and wherein each of the front (5) and rear (6) tubular elements comprises a first portion (5a, 6a) forming part of a first of the sections of the cross-member (3) and a second portion (5b, 6b) forming part of the second section of the cross-member (3), the two portions (5a, 5b; 6a, 6b) of the front tubular element (5) and/or the rear tubular element (6) being connected to each other and connected to the central support (2).
3. The supporting structure according to claim 1 or 2, wherein the front (5) and rear (6) tubular elements are fixed to the central support (2) by means of threaded elements, pins or seals.
4. The supporting structure according to any one of the preceding claims, wherein the first portion (5a) and the second portion (5b) of the front tubular element (5) have a shorter length than the length respectively of the first portion (6a) and of the second portion (6b) of the rear tubular element (6), and wherein the first portion (5a) and the second portion (5b) of the front tubular element (5) have respectively a first end fixed to the central support (2) and a second end connected to an intermediate portion respectively of the first portion (6a) and of the second portion (6b) of the rear tubular element (6).
5. The supporting structure according to any of claims 2 to 4, wherein the first portion (5a) and the second portion (5b) of the front tubular element (5) are rectilinear and are positioned in a mutually unaligned position to define a front concavity suitable for a solar concentration effect.
6. The supporting structure according to any of claims 2 to 5, wherein the first portion (6a) and the second portion (6b) of the rear tubular element (6) are rectilinear and are positioned in a mutually unaligned position to define a front concavity suitable for a solar concentration effect.
7. The supporting structure according to claim 6 when it depends on claim 5, wherein the first portion (5a) of the front tubular element (5) and the first portion (6a) of the rear tubular element (6) are positioned according to non-parallel orientations and wherein the second portion (5b) of the front tubular element (5) and the second portion (6b) of the rear tubular element (6) are positioned according to non-parallel orientations.
8. The supporting structure according to any of claims 2 to 7, wherein the first portion (6a) and the second portion (6b) of the rear tubular element (6) extend from the central support (2) respectively to the first and second ends (3a, 3b) of the cross-member (3), wherein the two portions (5a, 5b) of the front tubular element (5) form respective zones for applying at least one respective reflective panel (4) and wherein each portion (6a, 6b) of the rear tubular element (6) defines a respective zone for applying at least one respective reflective panel (4) in its own cross section between the connection point to the front tubular element (5) and its end opposite to the central support (2).
9. The supporting structure according to any one of the preceding claims, also comprising one or more reinforcing elements (7) which are positioned to mutually connect front (5) and rear (6) tubular elements and which act in conjunction with the tubular elements (5, 6) to form the lattice structure of the cross-member (3).
0. The supporting structure according to any one of the preceding claims, also comprising one or more supporting arms (8) for a receiver tube, each supporting arm (8) having one end applied to the central support (2) and/or to at least one of the front (5) and rear (6) tubular element by means of threaded elements, pins or sealing and extending outwards towards the area of concentration defined by the cross-member (3).
1 1. A concentration solar collector module, comprising a supporting structure (1) according to any one of the preceding claims, and a plurality of reflective panels (4) connected to different parts of at least the front tubular element (5).
12. A concentration solar collector module according to claim 1 1 , wherein the structure comprises at least two cross-members (3), and wherein each reflective panel (4) is connected to the structure (1 ) by at least six adjustable threaded members (9).
PCT/IB2017/053757 2016-06-27 2017-06-23 Structure for supporting reflective panels for concentration solar collectors WO2018002790A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17749517.3A EP3475627A1 (en) 2016-06-27 2017-06-23 Structure for supporting reflective panels for concentration solar collectors

Applications Claiming Priority (2)

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ITUA2016A004686A ITUA20164686A1 (en) 2016-06-27 2016-06-27 Support structure of reflective panels for concentrating solar collectors
IT102016000066375 2016-06-27

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IT (1) ITUA20164686A1 (en)
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US11608834B2 (en) 2016-07-27 2023-03-21 Denso Corporation Centrifugal blower

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