• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Cleaning device for solar concentrator panels of the parabolic cylinder type that incorporates coupling with ability to regulate the inclination and rotation and implement with pivot axis to give capacity to absorb distances and approaches of the truck as well as irregularities of the road through which the truck that carries the cleaning set as well as the internal wing to overcome, by voluntary activation or by impact, obstacles that exist in the course of a loop of mirrors. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2717929A1
    申请号:ES201731466
    申请日:2017-12-26
    公开日:2019-06-26
    发明作者:Perez Ainsua Javier Jesus Garcia；Herrera Jose Ruben Cabral；Jaime Jose Enrique Reina
    申请人:Ecilimp Termosolar S L；
    IPC主号:
    专利说明:

    [0001]
    [0002] Cleaning device for solar concentrator panels of the parabolic cylinder type.
    [0003]
    [0004] OBJECT OF THE INVENTION
    [0005]
    [0006] The present invention is the result of a research work encouraged by the H2020 Europe program, specifically the "H2020 project to minimize the water consumption in CSP plants" project and refers to water consumption in solar concentration plants. to a device implemented in a self-supporting vehicle intended for cleaning solar concentration mirrors of the cylinder type.
    [0007]
    [0008] BACKGROUND OF THE INVENTION
    [0009]
    [0010] The parabolic concentrator has a succession of mirrors in the form of a parabolic cylinder in whose focus a duct is placed through which a fluid passes through the action of solar radiation to such an extent that said heating, the energy contained, is used to generate electricity by passing it through a suitable generator.
    [0011]
    [0012] Different systems that carry out similar processes are currently known, the mention of the following being of special interest:
    [0013]
    [0014] 1st) Spanish patent application number 201630973 (pending publication). It refers to a device, implemented in a self-supporting vehicle or with the tractor system as an integral part of it, intended for cleaning reflective surfaces of any profile (flat, parabolic trough, others) covering the length where they are installed and used to it both pressurized liquids (osmotized water or water with some dissolved cleaning agent), with or without help of rotary brushes or scraping lips and with or without blow drying.
    [0015]
    [0016] 2 °) ES-1062794_U: the cleaning equipment object of the invention is intended for solar collection panels with a two-axis solar tracker, of the type they are constituted by a base support that supports a panel formed by multiple photovoltaic panels, and is characterized by the fact that it comprises at least one liquid outlet located in the cleaning panel coupled to at least one liquid supply conduit and pumping means for the liquid.
    [0017]
    [0018] 3 °) ES-1070127_U: This invention, as indicated in its statement, has the purpose of presenting a device composed of guides in vertical or horizontal arrangement on which a cleaning carriage that travels by means of motors with gearbox slides, which transmits its rotation to their respective pulleys by dragging of toothed belts, transmission chains or toothed rack. On the other hand, another reduction motor rotates a cleaning roller located with the profile of the cleaning car in contact with the outside of the solar panel; The roller is impregnated with cleaning liquid so that when the car is raised and lowered, the cleaning roller sweeps the solar panel with one or more scrapers and an air-drying complement. At the end of the descent, the surplus liquids are collected in a tray following the profile of the cleaning car that has drain holes.
    [0019]
    [0020] 4 °) ES-1074781_U: the object of the invention is centered on a vehicle that incorporates a series of elements intended to clean the upper surface of the solar energy collection panels, especially those installed in solar fields, in order to increase their performance, presenting the particularity of incorporating, on the one hand, means to effectively control the approach of the cleaning brush or cylinder that it has, to the surface of the panels and to maintain its position even if the vehicle travels through uneven terrain, and on the other hand, means to ensure the immediate drying of the panels after cleaning them.
    [0021]
    [0022] 5 °) WO2010079242A1, a procedure for cleaning solar panels, characterized by the projection of water vapor in the form of multiple individual jets at a pressure and temperature conditional on the resistance characteristics of the solar panel to be cleaned and the impurities to be removed, and according to an adjustable angle with respect to the panel, variable according to the type of impurities to be removed, approximately between 30 ° and 90 °, with variable temperature of steam between 150 ° C and 200 ° C, variable pressure between 2.5bar and 5 bars, performing gentle contact cleaning in addition to steam jet projection.
    [0023]
    [0024] 6 °) ES2365777: the automatic hydrolimpiador for cleaning of solar panels, is in an arm for the cleaning of solar panels formed by a set of articulated bars, joined by articulation to a tractor vehicle. Thanks to the positioning bars it is possible to place the spray bars in the optimum position for the correct cleaning of the plates. The movement between the different bars that make up the assembly is achieved thanks to a hydraulic system run by an electronic control unit located in the control cabin of the tractor vehicle itself. This invention suffers from the accessories described as necessary components in this description, which provide concrete improvements both in construction and in the execution of work by the team.
    [0025]
    [0026] 7 °) Spanish patent application P-201730393 (pending publication): Device for cleaning the solar concentrator panel equipped for water saving. Device for cleaning the solar concentrator panel equipped for water saving, including the use of lips for residual water scanning. Also the use of retractable covers that cover the volume contained between the implement of water and the mirror and that allow to collect the water that after impacting on the mirror bounces and is suspended in the area that is being cleaned, subsequently conducting its channeling for a possible recycling of said water.
    [0027]
    [0028] 8 °) W-2016/185078 A1: Allows a safe approach to the curvature of the mirrors, without affecting its structural integrity and avoiding obstacles inherent in them (absolve tube, central pylon, simple pylons, etc.), allowing absorption of variations in the length of the arms as well as irregularities of the terrain where it is to be circulated, the cleaning equipment comprising: a support structure equipped with telescopically extensible subsets vertically through mechanical actuators, a pair of racks support fixed to the sub-assemblies, a pair of telescopic arms housed inside the support frames and extensible horizontally, a pair of brush-bearing arches, arranged at the distal ends of each of the telescopic arms and arranged at their instead of one means of friction cleaning.
    [0029] The proposed invention contains the following advantages and, therefore, novelty, with respect to the known state of the art, as long as there are no references to a system that meets all these characteristics that the proposed invention meets:
    [0030]
    [0031] - Independence of truck movements with respect to the interaction between the cleaning implement and the collector line by means of systems independent of the operator operator control.
    [0032] - Reduction of the number of broken mirrors throughout the cleaning process in motion on truck.
    [0033] - Reduction of water consumption thanks to the optimization of the use of water that is projected.
    [0034]
    [0035] DESCRIPTION OF THE INVENTION
    [0036]
    [0037] The proposed invention, "cleaning device for solar concentrator panels of the parabolic cylinder type", is carried out from the following constituent elements:
    [0038]
    [0039] 1. Vehicle assembly, in turn, formed by tractor unit; installations (hydraulic, pneumatic and electrical) that the cleaning implement requires; demineralized water accumulation tank and a pumping system; and cleaning arm (truck mounted crane).
    [0040]
    [0041] 2. Cleaning group. In turn, it will consist of the following elements: a. Coupling, link between cleaning arm and cleaning implement.
    [0042] b. Implementation, consisting of a structure with articulated parts and that will support cleaning accessories and also cleaning liquid injectors, brushes, and other systems that are themselves which can really be considered cleaning equipment.
    [0043]
    [0044] The bulk of the invention, where all the inventive activity resides, is found in the coupling and the implement. This is so without prejudice that The cleaning team is made up of a whole that includes the vehicle set with all the parts mentioned.
    [0045]
    [0046] The bases that identify this invention are the following:
    [0047]
    [0048] 1. The implement as a whole, like the concentrating parabola, is symmetrical with respect to an axis that passes through the focus of the parabola. The mechanisms that are located on each side of this plane of symmetry are identical in configuration and working method, for which some components must be of symmetrical construction those of one side with respect to those of the other and others can be identical but assembled in arrangement contrary.
    [0049]
    [0050] 2. In the coupling, first there is a section that allows the tongue and groove to fit into the last extension of the cleaning arm and then, one after the other, two articulated axes of the hinge type, with perpendicular rotation axes between yes. The second axis of rotation is parallel to the last extension of the cleaning arm and the first is perpendicular so that the ported element passes from vertical to horizontal with its rotation. Following the second turn are the attachment elements to the implement.
    [0051]
    [0052] 3. In the implement, bearing structure that ensures the generation of a line parallel to the parabola to be cleaned. This implies that each parabolic trough collector profile requires specific cleaning equipment. Of this fastening frame, similar to an uppercase "A", on the one hand it joins the coupling and on the other hand the moving parts of the implement. Between this structural framework and the intermediate coupling, a group of parts that as a whole make it possible to quickly engage and disconnect the implement assembly with respect to the coupling assembly.
    [0053]
    [0054] 4. Pair of parallel bars, located in the fixed frame of the supporting structure, at each end of two bars located on the opposite side with respect to the attachment to the coupling. These parallel bars will produce, driven by a pneumatic cylinder, the parallel advance to the frame of the elements located in the parallel bars on the opposite side to the frame. The fact that the movement is parallel is important because in this way it is ensured that with distances or Approaches of the truck in its course during cleaning do not produce displacements with respect to the axis of symmetry.
    [0055]
    [0056] 5. Pivot point for anchoring structures. Assembled on the parallel bars, at the opposite end to the clamping frame, a shaft mounted between two bearings is placed so that the parts that are attached to this pair of bearings could oscillate freely if not because of angular displacement limitations. .
    [0057]
    [0058] 6. Load-bearing structure of cleaning equipment, with a parallel generatrix line and equidistant from the parabola to be cleaned. It is a clamping element for brushes, motors, water spray nozzles and pipes. Two parts are identified and differentiated, one corresponding to the outer side of the parabola and the other to the inner side of the parabola.
    [0059]
    [0060] 7. Mobility of the inner side of the inner bearing structure. By means of a new hinge system driven by pneumatic actuator, this inner wing can be positioned parallel to the direction of advance by means of a rotation that produces the folding of the wing and in this way leaves the interior space of the collector free. This movement is necessary because in this way two effects are achieved. The first effect, actuated by the operator or automatically by obstacle detection, the withdrawal prevents the contact of the wing with any of the many existing obstacles, namely, collector tube supports, thermal fluid conduits in the loop ends, etc. In addition, through a correct setting
    [0061]
    [0062] BRIEF DESCRIPTION OF THE DRAWINGS
    [0063]
    [0064] To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical implementation thereof, a set of figures is attached as an integral part of this description. in which, by way of illustration and not limitation, the following has been represented:
    [0065]
    [0066] Figure 1.- Shows an isometric view of the cleaning implement.
    [0067] Figure 2.- Shows an isometric view of the coupling.
    [0068] Figure 3.- Constructive alternative, double hinge
    [0069] In the mentioned figures the following constituent elements can be highlighted:
    [0070]
    [0071] 0 1 Structure in A.
    [0072] 02. - Flat lattice.
    [0073] 03. - Pivot axis.
    [0074] 04. - Outside wing.
    [0075] 05. - Swing wing.
    [0076] 06. - Crane tip fit
    [0077] 07. - Tilt cylinder.
    [0078] 08. - Rotation cylinder.
    [0079] 09. - Quick hitch.
    [0080] 10. - Quick hitch retention system.
    [0081] 11. - Hinge operated voluntarily
    [0082] 12. - Impact driven hinge
    [0083] 13. - Double hinge system linear actuator
    [0084] 15.- Compression spring
    [0085]
    [0086] DESCRIPTION OF A PREFERRED EMBODIMENT
    [0087]
    [0088] For the purposes of the present preferred embodiment, and in relation to the configuration that includes all saving systems, the construction of the mirror cleaning equipment in concentration camps will include the elements described below.
    [0089]
    [0090] The machine set consists of a tank truck that includes, between the tank and the cabin, a crane whose tip incorporates a coupling and then an attachment. Both the truck and the crane are standard elements whose construction and form of use are not constitutive of invention in themselves, so we will explain the elements that have required inventive activity, which are the coupling and the implement.
    [0091]
    [0092] First, the geometry and the working mode of the coupling will be explained. First, there is a crane tip fitting (06) consisting of a tube whose geometry is identical to that of the crane tip but whose measurements make It is possible to fit and slide inside the latter, as a telescopic tube, but that when reaching a certain position can be blocked by inserting a bolt, it will allow the coupling to be attached to the tip of the pen. This tube is rigidly attached to a plate on which on the one hand there is an oscillating support for hydraulic cylinder and on the other hand there is a group of bushings that will act as a hinge. The axis of these bushings will be in a horizontal position so that in its turn, the mobile plate will have an inclination movement that will correct the inclination that the crane produces when it requires varying the height of its tip. This mobile plate that tilts when the tilt cylinder (07) acts and also has an oscillating support for rotation cylinder (08) and a bushing with bearings inserted, so that when a third plate mounted on the shaft that fits in this hub they configure a new hinge, with an axis of rotation equally horizontal but perpendicular to the previous one, which in this case confers the possibility of inclination in the plane perpendicular to the previous one; this second turn will be the one that allows to orientate the implement with respect to the parabola of mirrors.
    [0093]
    [0094] The coupling has the main function of correctly orienting the implement, ensuring that its position is perpendicular to the parabola of the mirror to be cleaned. On the opposite side to which there is the axis that produces the rotation of orientation are a quick coupling (09) consisting of a series of inclined plates and a bolt housing that together facilitate a correct, agile and fast attachment of the implement to the coupling. This quick hitch (09) consists of a front support plate, whose perimeter has inclined plates that act as funnels that facilitate the positioning of the homologous plate that will exist in the implement. In addition to this main support plate and the centering perimetrals there are bushings that are coaxially arranged with their counterparts in the implement plate, and that by inserting a bolt allows the safety lock of the joint between coupling and implement, this bolt and the bushes together are the quick hitch retention system (10).
    [0095]
    [0096] Next, the geometry and working mode of the implement will be explained.
    [0097]
    [0098] There is a set of support plate around which there are centering plates and a group of bushings that together make possible the quick hitch (09) to the coupling. This set of plates and bushing is fixed to a structure in A (01) whose plane of symmetry is also the plane of symmetry of the implement assembly of which this structure is part. At the base of each leg of this structure in A (01) there are two bushes separated by a certain distance. A flat lattice (02) part of each bushing, which on the opposite side joins, also in hinge mode, to a system that has a pair of bushes separated by a distance equal to that of the counterparts at the base of the structure in A (01), which ensures the parallel spacing of both parts with the rotation of the flat lattices (02). A pneumatic cylinder anchored by the cylinder head to the structure in A (01) and on the other side to the plate with pivot axis (03) produces the regulation of the force with which the flat lattices (02) extend.
    [0099]
    [0100] In the mechanical system tied to the flat lattices (02) on the opposite side to the structure in A (01) there is a pivot shaft (03) supported between two bearings so that the resistance to rotation is minimized. These bearings are fixed in a curved structure so that it reproduces a parallel to the section of the parabola formed by the mirrors to be cleaned, this structure is the outer wing (04).
    [0101]
    [0102] Anchored to this outer wing (04), and with the ability to pivot derived from its mooring point, part of a structure that, like the previous one, reproduces the section parallel to the parabola to be cleaned, the swinging wing (05), but as a consequence with a hinged connection to the outer wing and by the action of a pneumatic cylinder, both by actuating this cylinder and when faced with obstacles, this swinging wing (05) can move back, freeing the interior space of the mirror parabola. An alternative configuration is to arrange two hinges one after the other, the first will be an impact-driven hinge (12) that remains forced into a position by the action of a compression spring (14), and the second voluntarily actuated hinge ( 11) by means of a linear actuator of the double hinge system (13) that will retract the swinging wing before the impact occurs.
    [0103]
    [0104] Finally, an explanation is given of the joint action of the coupling and the implement and how the cleaning is carried out.
    [0105] In the course of the truck, purportedly in parallel to the achievement of mirrors - a loop -, it is likely that some of the following cases involving relative displacements between the cleaning element and the mirror occur: alignment errors in the course of the truck, irregularities on the ground -holes and cant- and I encounter obstacles that are integral parts of the parabola, such as the supports of the collector tube along the loop or the thermal oil conduits at the end of the mirror loop.
    [0106]
    [0107] Thanks to the tilt and orientation cylinders, and the action derived from their corresponding hinges, it is possible to maintain the perpendicularity and centered positioning of the parabola of the cleaning implement and the mirror, both parabolas, despite the corrections in height and in rotation that the crane executes before unevenness in the terrain and before deviations of the truck respectively. In addition, during the correction movement of the tilt cylinders in case of irregularity in the terrain, the implement will support more in the lower half or in the upper half of the mirror parabola - up or down depending on the type of irregularity, cant or hole - so that the pivoted movement of the wings, the outer wing and the swinging wing, will facilitate the implement to slide along the parabola without having a perpendicular impact on breaking mirrors. In addition, before the encounter with possible supports, pipes or other elements that are part of the solar collectors that are an obstacle that the inner wing is, this inner wing is made a swinging wing integrating the single hinge with a single cylinder or the double hinge with the linear actuator of the double hinge system and the compression spring.
    [0108]
    [0109] It is not considered necessary to make this description more extensive so that any person skilled in the art understands the scope of the invention and the advantages derived therefrom. The materials used, shapes, sizes, number of pieces and arrangement of the elements described will be subject to variation as long as this does not imply an alteration in the essentiality of the invention.
    权利要求:
    Claims (2)
    [1]
    1.- Cleaning device for solar concentrator panels of the parabolic cylinder type, characterized by being constituted from the following elements:
    - Vehicle set, in turn, formed by the following elements:
    a) Tractor head of the vehicle.
    b) Installations (hydraulic, hydraulic, pneumatic and electric oil) that requires the cleaning implement.
    c) Storage tank for cleaning liquid and its pumping system.
    d) Cleaning arm (crane).
    - Cleaning group. In turn, it will consist of the following elements:
    a) Coupling that introduces at least tilt angle correction and rotation angle correction, in addition to the relevant connection between the crane and the cleaning implement. It will also include a quick hitch system to the cleaning implement.
    b) Cleaning implement, in turn composed of
    i. Principal structure
    ii. Quick attachment system to the implement.
    iii. Set of flat lattices that act as a parallel bar mechanism, driven by pneumatic cylinder, for approximation of mirror surface cleaning systems. iv. Pivoting system to allow the rotation of the wings parallel to the mirror parabola.
    v. Outside wing, parallel to the parable of mirrors, which carries cleaning systems.
    saw. Internal wing, swinging, which by means of a hinge and pneumatic cylinder with variable pressure during the cleaning process, allows its removal from the cleaning area either at the operator's will or by automatic programming, as a result of a trip. This structure will also support cleaning systems.
    c) Cleaning systems: cleaning liquid injectors, brushes, and other cleaning equipment.
    [2]
    2. Cleaning device for solar concentrator panels of the parabolic cylinder type, according to claim one, characterized in that the wing has two hinges, one driven by pneumatic cylinder and the other with a position determined by the action of a compression spring, which will yield to the encounter with an obstacle, without effect on the pneumatic cylinder.
    类似技术:
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    同族专利:
    公开号 | 公开日
    ZA202004333B|2021-07-28|
    ES2717929B2|2020-12-09|
    WO2019129907A1|2019-07-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    ES2308921A1|2007-05-17|2008-12-01|Jose Antonio Villanueva Sautu|Machine for cleaning tunnels, walls and similar|
    ES2350083A1|2009-06-12|2011-01-18|Abengoa Solar New Technologies,S.A.|Vehicle and cleaning procedure for solar collectors of cylinder-parabolic technology |
    ES2439771T3|2009-09-09|2014-01-24|MULAG FAHRZEUGWERK Heinz Wössner GmbH & Co. KG|Cleaning device for solar thermal power plants|
    ES2382962A1|2010-05-31|2012-06-15|Abengoa Solar New Technologies, S.A.|Improvements introduced in the patent of invention p200901410 by "vehicle and cleaning procedure for solar collectors of cylinder-parabolic technology" |
    ES2375859A1|2010-07-07|2012-03-07|Rafael Mª MÉNDEZ DE LA CUESTA|Cleaning device for photovoltaic panels and solar thermal panels|
    ES2643118A1|2015-05-20|2017-11-21|Garnata Servicios Integrales S.L.|Cleaning equipment for parabolic trough collectors, and vehicle incorporating said cleaning equipment |
    法律状态:
    2019-06-26| BA2A| Patent application published|Ref document number: 2717929 Country of ref document: ES Kind code of ref document: A1 Effective date: 20190626 |
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201731466A|ES2717929B2|2017-12-26|2017-12-26|CLEANING DEVICE FOR PARABOLIC CYLINDER TYPE SOLAR CONCENTRATOR PANELS|ES201731466A| ES2717929B2|2017-12-26|2017-12-26|CLEANING DEVICE FOR PARABOLIC CYLINDER TYPE SOLAR CONCENTRATOR PANELS|
    PCT/ES2018/070814| WO2019129907A1|2017-12-26|2018-12-19|Device for cleaning cylindrical parabolic solar concentrator panels|
    ZA2020/04333A| ZA202004333B|2017-12-26|2020-07-14|Device for cleaning cylindrical parabolic solar concentrator panels|
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