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WO2018151652A1 - Raccord de fixation pour collecteur solaire parabolique et procédés de transport d'un collecteur solaire parabolique - Google Patents

Raccord de fixation pour collecteur solaire parabolique et procédés de transport d'un collecteur solaire parabolique Download PDF

Info

Publication number
WO2018151652A1
WO2018151652A1 PCT/SE2018/050141 SE2018050141W WO2018151652A1 WO 2018151652 A1 WO2018151652 A1 WO 2018151652A1 SE 2018050141 W SE2018050141 W SE 2018050141W WO 2018151652 A1 WO2018151652 A1 WO 2018151652A1
Authority
WO
WIPO (PCT)
Prior art keywords
boom
hub
opening
solar collector
fixing device
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/SE2018/050141
Other languages
English (en)
Inventor
Peter Weber
Lennart ÅKERLUND
Roger SJÖQVIST
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.)
CLEANERGY AB
Original Assignee
CLEANERGY AB
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 CLEANERGY AB filed Critical CLEANERGY AB
Publication of WO2018151652A1 publication Critical patent/WO2018151652A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
    • 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
    • F24S23/71—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with parabolic reflective surfaces
    • 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
    • F24S23/82—Arrangements for concentrating solar-rays for solar heat collectors with reflectors characterised by the material or the construction of the reflector
    • 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
    • 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
    • F24S2023/833—Other shapes dish-shaped
    • 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
    • F24S25/12—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface using posts in combination with upper profiles
    • 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 present invention pertains to the field concentrated solar power assemblies and in particular to concentrated solar power assemblies comprising a solar collector, a boom and a boom hub provided with an opening for receiving a fixing device.
  • Concentrated solar power (CSP) systems generate solar power by using mirrors or lenses to concentrate a large area of sunlight, or solar thermal energy, onto a small area. Energy from the concentrated area can be thereafter converted to electrical energy via an energy conversion unit, for example steam engines and Stirling engines.
  • an energy conversion unit for example steam engines and Stirling engines.
  • Parabolic reflector systems comprise a large parabolic mirror mounted to a vertical support.
  • a boom is generally provided extending from the vicinity of the parabolic mirror towards the focal point of the parabolic mirror. The boom generally supports both the parabolic mirror and the energy conversion unit.
  • the size of the parabolic mirror varies depending on the application but may be very large. For example, dishes could be 5-10 m or more in diameter.
  • the size and weight of the parabolic mirror and boom system makes installation and maintenance of the system complex and costly.
  • the present invention preferably seeks to mitigate, alleviate or eliminate one or more of the above-identified deficiencies in the art and disadvantages singly or in any combination and solves at least the above mentioned problems by providing a boom hub for a concentrated solar power system, the boom hub being adapted to connect a boom of a parabolic solar collector to a plurality of supporting members extending from the parabolic solar collector towards the boom, wherein a lateral region of the boom hub is provided with an opening for receiving a fixing device.
  • a concentrated solar power assembly is provided.
  • a method of erecting a solar power assembly is provided.
  • a method of transporting a solar power assembly is also provided.
  • Figure 1 is a perspective view of a concentrated solar power assembly, comprising a boom hub according to the invention.
  • Figure 2 is a perspective elevated view of a concentrated solar power assembly comprising a boom hub according to the invention.
  • Figure 3 is a perspective view of a section of a concentrated solar power assembly, showing a boom hub according to the invention.
  • Figure 4 is a perspective view of a connecting member of a boom hub according to the invention.
  • FIG. 1 shows a concentrated solar power assembly 1 comprising a parabolic solar collector 100.
  • the concentrated solar power system 1 further comprises a boom 300 and a boom hub 200.
  • the parabolic solar collector is provided with a plurality of members 115 extending from the parabolic solar collector 100 towards the boom 300.
  • the boom hub 200 is adapted to connect the plurality of members 115 to the boom 300.
  • the boom hub is provided with an opening 201 at a lateral region 202 for receiving a fixing device. Due to the opening the present concentrated solar power assembly 1 is easier to install and manoeuvre than existing systems.
  • the concentrated solar power assembly 1 is much easier to move, lift, transport etc.
  • the boom hub is a structurally integral member to the concentrated solar power assembly 1 it is an ideal single point to which the fixing device can be attached.
  • the parabolic solar collector 100 is a substantially paraboloid member having a central inner vertex (which may also be called an apex) 111.
  • the parabolic solar collector 100 may comprise a plurality of individual curved elements 112 arranged in concentric rings forming the paraboloid. This simplifies manufacturing and transport of the solar collector 100.
  • the parabolic solar collector 100 may also be provided with a frame to which the individual elements 112 are attached. The frame increases the structural integrity of the solar collector 110.
  • the parabolic solar collector 110 also comprises a perimeter 113, that is, the circumferential edge of the paraboloid. As described above, the parabolic solar collector 100 focus light incident to the inner surface of the parabolic solar collector 100 at a focal point F.
  • the focal point F may be along the normal line to the vertex 11. That is, the focal point F may be along the line perpendicular to a tangential line to the vertex 111. However, by adjusting the angle of mirrors of the parabolic solar collector 100 the location of the focal point F may be adjusted. It need not be at a point along the normal line to the vertex 111.
  • the opening 201 at the boom hub 200 is provided at a lateral region 202 of the boom hub 200.
  • the lateral region may be a lateral plate.
  • the boom hub 200 may comprise two lateral regions 202, 203. Each of the lateral regions may be lateral plates.
  • the lateral regions 202, 203 may be opposing such that they are parallel and aligned.
  • Each of the lateral regions 202, 203 may be positioned lateral to the central axis of boom 300.
  • the central axis of the boom 300 is the longitudinal axis of extension of the boom 300 extending substantially from the boom hub 200 to a distal end 301 of the boom 300.
  • the opening 201 receives a fixing device.
  • a crane is used to hoist the system in to place.
  • the crane needs to connect to various points on the parabolic solar reflector and boom, for example with straps and hooks etc.
  • the assembly is subsequently difficult to manoeuvre as there are numerous non-rigid connectors.
  • the provision of an opening 201 for receiving a fixing device at the boom hub 200 enables rigid and secure engagement between a fixing device and the boom hub 200.
  • the boom hub 200 is a structural connecting member for the parabolic solar collector 100 and boom 300 assembly.
  • the provision of an opening 201 at the boom hub 200 enables rigid and secure engagement between a fixing device and the solar collector 100 and boom 300 assembly.
  • a second opening may be provided in the second lateral region 203 of the boom hub 200.
  • the second opening may be parallel and aligned with the first opening 201.
  • the openings may be connected by a connecting member 204 forming a sleeve between the first 201 and second opening.
  • the connecting member 204 extends transversally in the boom hub 200.
  • the connecting member 204 may have an internal cross-section matching the shape of the opening.
  • Such an internal connecting member provides improved engagement between the boom hub and the fixing device.
  • the internal member may also form an axis of rotation, around which the parabolic solar collector 100 and boom 300 may rotate with respect to the support 120. For example, during tracking of the sun during daytime.
  • the connecting member 204 may be fixed at either a first end, second end or both first and second ends to the lateral regions 202, 203 of the boom hub 200.
  • the opening is an aperture in the boom hub 200.
  • the opening is defined by at least one edge.
  • the at least one edge defines the shape of the opening.
  • the opening 201 is shaped such that the boom hub 200 and the fixing device are engageable such that rotation of the boom hub 200 with respect to the fixing device is hindered. At least a portion of the opening 201 may be provided with a straight edge. This enables the opening to easily lock together with the fixing device. If the opening was circular, that is, did not comprise a portion having a straight edge, then the parabolic solar collector 100 and boom 300 may be liable to rotate around the fixing device during installation. An opening 201 provided with at least a portion having a straight edge means that the boom hub 200 cannot rotate around the fixing device.
  • the opening 201 is shown as being a rectangular opening, that is an opening having four straight edges and four internal angles of 90°.
  • the opening may be triangular, such that the opening has three straight edges.
  • Other forms of the opening are possible provided they limit or hinder the potential of rotation of the boom hub 200 with respect to the fixing device.
  • the opening may be elliptical. In order to limit rotation, the opening may not be circular.
  • the boom hub 200 acts as a structural connecting member for connecting the parabolic solar collector 100 to the boom 300.
  • the parabolic solar collector 100 is provided with a plurality of supporting elements 115 extending from the parabolic solar collector 100 towards the boom 300.
  • the plurality of supporting elements 115 may form tensile supporting members.
  • the plurality of supporting elements 115 connect to the boom hub 200.
  • the boom hub 200 is connected to the parabolic solar collector 100.
  • Each of the plurality of supporting members may connect at a first end to the solar collector 100.
  • a second end of each of the plurality of supporting members may connect to the boom hub 200.
  • the plurality of supporting elements 115 may extend from, and may be connected to, the frame of the parabolic solar collector 100.
  • the boom hub 200 is also connected to the boom 300.
  • the boom hub 200 is positioned between the solar collector 100 and the boom 300.
  • the boom extends from the boom hub 200 in a direction distal to the solar collector 100.
  • the boom 300 may comprise, such as be formed by, a longitudinal lattice framework.
  • the boom 300 may extend substantially along the axis formed between the vertex 111 of the parabolic solar collector 100, and the focal point F.
  • the boom 300 need not be fully aligned with the axis formed between the axis 111 and the focal point F.
  • the boom 300 may extend from the boom hub 200 at a slight acute angle with respect to the axis formed between the vertex 111 and the focal point F. This reduces the impact that the members of the boom have on the sunlight reaching the focal point F.
  • the boom hub 200 and more specifically the opening 201 for receiving the fixing device may be provided at a point in the vicinity of the centre of mass of the parabolic solar collector 100 and boom 100 assembly. This means that the boom does not tend to rotate when it is being moved in to position by the fixing device.
  • the boom hub 200 may act as an element connecting the solar collector 100 and boom 300 to a support 120.
  • the support 120 is a structure for supporting the solar collector 100 and boom 300 during use.
  • the support 120 ensures that the solar collector 100 and boom 300 is maintained erect.
  • the support 120 needs to be sufficiently strong to support the solar collector 100 and boom 300 assembly.
  • an energy converter may be provided at the distal end 301 of the boom, at the focal point F.
  • the energy converter may be used to convert solar thermal energy to electrical energy.
  • the solar energy converter may be for example a Stirling engine.
  • the distal end 301 of the boom 300, at the focal point F, may be provided with a solar receiver, not being an energy converter.
  • the solar receiver receives solar energy and may for example, heat a heat transfer fluid which can be later used for electrical energy generation.
  • the fixing device forms an attachment between a device for manoeuvring the parabolic solar collector 100 and boom 300 and the boom hub 200.
  • the fixing device has an external shape matching the opening 201 present in the boom hub 200. For example, if the opening 201 in the boom hub 200 is rectangular then the fixing device is also rectangular such that it mates with the opening 201.
  • the fixing device may be considered a male member.
  • the opening 201 may be considered a female member.
  • the fixing device may be connectable to a telescopic handler, or elevator unit, such as crane, or forklift, or lift in general.
  • the fixing device can therein be used to interconnect the boom hub 200 to a lifting device.
  • the fixing device may also be fixed at a first end to a transport unit, such as a truck bed. In such a way the fixing device forms a rigid connection between a transport unit and the boom hub 200.
  • the erected concentrated solar power assembly 1 comprises a solar collector, such as a parabolic solar collector 100, a boom 300, and a boom hub 200 adapted to connect the boom 300 to a plurality of supporting members 115 extending from the solar collector towards the boom 300.
  • a solar collector such as a parabolic solar collector 100
  • a boom 300 Prior to the erection the solar collector and boom 300 may be separate and not yet assembled, or connected together.
  • the boom hub 200 is connected to at least the boom 300, or the parabolic solar collector 100.
  • a lateral region 202 of the boom hub 200 is provided with an opening for receiving a fixing device.
  • the method comprises receiving in the opening 201 a fixing device forming a rigid connection between the boom hub 200 and the fixing device; moving the solar power assembly from a fist transport position, to a second erected position via the fixing device.
  • the fixing device may be connected at a first end to a lifting unit, such as a crane.
  • the boom hub 200 and the lifting unit are therein in rigid connection.
  • the moving of the solar power assembly may comprise moving the solar power assembly in, and/or around, at least three separate axes. Such movement would not be possible, or would at least be extremely complex, without the rigid connection between the lifting unit and the boom hub.
  • the method may comprise receiving the fixing device at a point near the centre of mass of the solar power assembly. Aspects of the above method may clearly be suitable for lowering or de-constructing the concentrated solar power assembly 1.
  • the solar power assembly 1 may be moved from a first erected position, to a second transport position via the fixing device.
  • the concentrated solar power assembly 1 comprises a solar collector, such as a parabolic solar collector 100, a boom 300, and a boom hub 200 adapted to connect the boom 300 to a plurality of supporting members 115 extending from the solar collector towards the boom 300.
  • the boom hub 200 is connected to at least the boom 300, or the parabolic solar collector 100.
  • the method comprises receiving in the opening 201 of the boom hub 200 a fixing device; transporting the concentrated solar power assembly 1 from a first location, to a second location via a transport device.
  • the fixing device is fixed, or fixable, at a first end to the transport device, such as a bed of a truck.
  • a rigid connection is formed between the boom hub 200 and the fixing device.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (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)
  • General Engineering & Computer Science (AREA)
  • Photovoltaic Devices (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

L'invention concerne un raccord de flèche pour un ensemble d'énergie solaire concentrée, le raccord de flèche étant conçu pour relier une flèche d'un ensemble d'énergie solaire parabolique à une pluralité d'éléments de support s'étendant à partir d'un collecteur solaire parabolique vers la flèche, une zone latérale du raccord de flèche étant pourvue d'une ouverture destinée à recevoir un dispositif de fixation.
PCT/SE2018/050141 2017-02-14 2018-02-14 Raccord de fixation pour collecteur solaire parabolique et procédés de transport d'un collecteur solaire parabolique Ceased WO2018151652A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1750134A SE540859C2 (en) 2017-02-14 2017-02-14 Attachment hub for parabolic solar collector and methods of transport of a parabolic solar collector
SE1750134-7 2017-02-14

Publications (1)

Publication Number Publication Date
WO2018151652A1 true WO2018151652A1 (fr) 2018-08-23

Family

ID=63169799

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2018/050141 Ceased WO2018151652A1 (fr) 2017-02-14 2018-02-14 Raccord de fixation pour collecteur solaire parabolique et procédés de transport d'un collecteur solaire parabolique

Country Status (2)

Country Link
SE (1) SE540859C2 (fr)
WO (1) WO2018151652A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5707168A (en) * 1996-08-15 1998-01-13 Houston Industries, Inc. Heavy object lifting connector device
US5758938A (en) * 1996-07-24 1998-06-02 Stirling Thermal Motors, Inc. Solar concentrator elevational drive mechanism
SE1450354A1 (sv) * 2014-03-27 2015-09-28 Cleanergy Ab Förvärmningssystem för en stirlingmotor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5758938A (en) * 1996-07-24 1998-06-02 Stirling Thermal Motors, Inc. Solar concentrator elevational drive mechanism
US5707168A (en) * 1996-08-15 1998-01-13 Houston Industries, Inc. Heavy object lifting connector device
SE1450354A1 (sv) * 2014-03-27 2015-09-28 Cleanergy Ab Förvärmningssystem för en stirlingmotor

Also Published As

Publication number Publication date
SE1750134A1 (en) 2018-08-15
SE540859C2 (en) 2018-12-04

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