WO2011121149A1 - Coupling part for adjacent parabolic trough solar modules - Google Patents
Coupling part for adjacent parabolic trough solar modules Download PDFInfo
- Publication number
- WO2011121149A1 WO2011121149A1 PCT/ES2010/070206 ES2010070206W WO2011121149A1 WO 2011121149 A1 WO2011121149 A1 WO 2011121149A1 ES 2010070206 W ES2010070206 W ES 2010070206W WO 2011121149 A1 WO2011121149 A1 WO 2011121149A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- joint
- modules
- adjacent
- piece
- torsion box
- 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
Links
Classifications
-
- 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
- F24S25/67—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for coupling adjacent modules or their peripheral frames
-
- 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
-
- 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
-
- 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
- F24S30/00—Arrangements for moving or orienting solar heat collector modules
- F24S2030/10—Special components
- F24S2030/13—Transmissions
- F24S2030/136—Transmissions for moving several solar collectors by common transmission elements
-
- 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
-
- 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 object of the present invention is a connecting piece specially designed to connect two adjacent cylindrical parabolic solar modules through their torsion boxes.
- a generation system of this type is fundamentally based on a conventional thermodynamic cycle where the heating of the fluid is carried out by means of a solar collector formed by a set of parabolic trough modules.
- Each cylindrical-parabolic module comprises a specular surface in the form of a cylindrical sector of parabolic section supported on a support structure, and a conduit located on the longitudinal line that constitutes the focus of the cylindrical-parabolic specular surface.
- the module can rotate relative to an axis parallel to said longitudinal line, so that, by properly controlling the angle of rotation, sunlight can be reflected on the duct throughout the day.
- an actuator formed by an electric motor connected to a hydraulic system which, in turn, acts on the central module or modules of the collector. Consequently, it is necessary to transmit that torque along the collector so that all the modules that form it are oriented in solidarity with each other. Therefore, the intermediate parts that link some modules with others are specially designed, taking into account both their function and the configuration of the modules to be connected.
- One type of known modules are those whose support structure comprises a so-called "torsion box", which serves to transmit the torsional stresses generated during the orientation process along the row of modules that form the collector.
- a torsion box consists essentially of a quadrangular prism-shaped structure formed by four longitudinal bars joined by means of multiple perpendicular and / or inclined transverse bars.
- the known module called Eurotrough comprises a torsion box of this type, as described in "Eurotrough - Parabolic Trough Collector Developed for Cost Efficient Solar Power Generation", by M. Geyer et al, 11 th Symposium on Concentrating Solar Power and Chemical Energy Technologies, September 4-6, 2002, Zurich.
- This document also describes a known joint piece, which is attached to the present application as Fig. 1.
- Fig. 2 shows another type of joint piece known in the art. Both pieces of union are mainly formed by two parallel plates connected by a union cylindrical which constitutes the axis of rotation of the collector, each plate being configured for connection to the four corners of the torsion box of one of the adjacent modules.
- each collector rests on a set of pylons and rotates, supported on the pylons, around an axis that passes through the cylindrical joints of the connecting pieces.
- a collector can comprise 12 or more modules, and that the size of the joining pieces is in the order of several hundred kg.
- the connecting piece of the present invention solves the above drawbacks thanks to a new design based on a structure that is only connectable to two opposite corners of the torsion box of an adjacent first module and two opposite corners not corresponding to the torsion box of a second adjacent module.
- the plates are essentially boomerang shaped, the joint being located at the angle formed by its arms and comprising a pair of fixing means at the ends of the arms.
- the plates are essentially triangular in shape, in which case the rotating union and the pair of fixing means are located on two edges of the triangle. In any of these cases, the edges can have smooth and rounded shapes to avoid stress concentration points when the piece is in load.
- the connecting piece of the invention is preferably metal, and more preferably steel.
- the fixing means can be any provided that they allow an adequate fixation of the connecting piece to the respective torsion boxes, although preferably these are suitable holes for bolts, pins or screws.
- Figs. 1 and 2 show two joining pieces according to the prior art.
- Fig. 3 shows an example of a connecting piece according to the present invention.
- Fig. 4 shows the connecting piece of Fig. 3 attached to a solar module with a torsion box.
- Fig. 1 shows the connecting piece according to the prior art described in the "Eurotrough” mentioned above
- Fig. 2 shows another known connecting piece. It is observed how both pieces comprise a structure configured for simultaneous connection to the four corners of the torsion box (11) of the two adjacent solar modules (10) parabolic troughs. That is, the assembly of these connecting pieces requires the attachment of eight points to the corresponding torsion boxes.
- connection piece (1) of this type already connected to the torsion box (11) of a module (10) can be seen in Fig. 4. It is observed how a first plate (2a) is connected to a pair of diametrically opposite corners of the torsion box (11) of the module (10) represented, while that the second plate (2b) is prepared for connection only to the pair of diametrically opposite and non-corresponding corners of the torsion box (1 1) of a second module not shown in Fig. 4. The final result is shown in Fig. 5, where a row of modules (10) joined by a plurality of connecting pieces (1) of the present invention is shown.
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)
- Photovoltaic Devices (AREA)
Abstract
Description
PIEZA DE UNIÓN PARA MÓDULOS SOLARES CILINDRO- PARABÓLICOS ADYACENTES JOINT PIECE FOR SOLAR CYLINDER MODULES - ADJACENT PARABOLIC MODULES
OBJETO DE LA INVENCIÓN OBJECT OF THE INVENTION
El objeto de la presente invención es una pieza de unión especialmente diseñada para conectar dos módulos solares cilindróparabólicos adyacentes a través de sus cajas de torsión. The object of the present invention is a connecting piece specially designed to connect two adjacent cylindrical parabolic solar modules through their torsion boxes.
ANTECEDENTES DE LA INVENCIÓN BACKGROUND OF THE INVENTION
Actualmente, la tecnología solar de colectores cilindro-parabólicos está adquiriendo una importancia creciente dentro del sector de las energías renovables. Un sistema de generación de este tipo se basa fundamentalmente en un ciclo termodinámico convencional donde el calentamiento del fluido se realiza mediante un colector solar formado por un conjunto de módulos cilindro-parabólicos. Cada módulo cilindro-parabólico comprende una superficie especular en forma de sector cilindrico de sección parabólica apoyada sobre una estructura de soporte, y un conducto situado sobre la línea longitudinal que constituye el foco de la superficie especular cilindro-parabólica. El módulo puede girar con relación a un eje paralelo a dicha línea longitudinal, de modo que, controlando adecuadamente el ángulo de giro, se puede reflejar la luz del sol sobre el conducto durante todo el día. De este modo, se consigue calentar el fluido que circula por su interior, que se utiliza para generar energía mediante un ciclo termodinámico convencional. Para elevar la temperatura del fluido hasta niveles útiles para el ciclo termodinámico, es necesario conectar en serie varios módulos de este tipo formando hileras de módulos denominadas colectores. Para que todo el colector se pueda orientar solidariamente en función de la hora del día, los laterales de las estructuras de soporte de cada módulo se fijan mecánicamente entre sí. Currently, solar parabolic trough collector technology is becoming increasingly important in the renewable energy sector. A generation system of this type is fundamentally based on a conventional thermodynamic cycle where the heating of the fluid is carried out by means of a solar collector formed by a set of parabolic trough modules. Each cylindrical-parabolic module comprises a specular surface in the form of a cylindrical sector of parabolic section supported on a support structure, and a conduit located on the longitudinal line that constitutes the focus of the cylindrical-parabolic specular surface. The module can rotate relative to an axis parallel to said longitudinal line, so that, by properly controlling the angle of rotation, sunlight can be reflected on the duct throughout the day. In this way, it is possible to heat the fluid that circulates inside, which is used to generate energy through a conventional thermodynamic cycle. To raise the temperature of the fluid to levels useful for the thermodynamic cycle, it is necessary to connect several modules of this type in series forming rows of modules called collectors. So that the entire collector can be oriented in solidarity according to the time of day, the sides of the support structures of each module are mechanically fixed together.
Normalmente, para proporcionar un par de giro a la estructura, se emplea un actuador formado por un motor eléctrico conectado a un sistema hidráulico que, a su vez, actúa sobre el módulo o módulos centrales del colector. En consecuencia, es necesario transmitir ese par de giro a lo largo del colector para que todos los módulos que lo forman se orienten solidariamente entre sí. Por tanto, las piezas intermedias que unen unos módulos con otros están especialmente diseñadas, teniendo además en cuenta tanto su función, como la configuración de los módulos que deben conectar. Un tipo de módulos conocidos son aquellos cuya estructura de soporte comprende una denominada "caja de torsión", que sirve para transmitir los esfuerzos de torsión generados durante el proceso de orientación a lo largo de la hilera de módulos que forman el colector. Una caja de torsión consiste fundamentalmente en una estructura con forma de prisma cuadrangular formado por cuatro barras longitudinales unidas por medio de múltiples barras transversales perpendiculares y/o inclinadas. Normally, to provide a torque to the structure, an actuator formed by an electric motor connected to a hydraulic system is used which, in turn, acts on the central module or modules of the collector. Consequently, it is necessary to transmit that torque along the collector so that all the modules that form it are oriented in solidarity with each other. Therefore, the intermediate parts that link some modules with others are specially designed, taking into account both their function and the configuration of the modules to be connected. One type of known modules are those whose support structure comprises a so-called "torsion box", which serves to transmit the torsional stresses generated during the orientation process along the row of modules that form the collector. A torsion box consists essentially of a quadrangular prism-shaped structure formed by four longitudinal bars joined by means of multiple perpendicular and / or inclined transverse bars.
El módulo conocido denominado Eurotrough comprende una caja de torsión de este tipo, como se describe en "Eurotrough - Parabolic Trough Collector Developed for Cost Efficient Solar Power Generation", de M. Geyer et al, 11th Symposium on Concentrating Solar Power and Chemical Energy Technologies, September 4-6, 2002, Zurich. En este documento se describe además una pieza de unión conocida, que se adjunta a la presente solicitud como Fig. 1. Adicionalmente, la Fig. 2 muestra otro tipo de pieza de unión conocida en la técnica. Ambas piezas de unión están formadas fundamentalmente por dos placas paralelas conectadas por una unión cilindrica que constituye el eje de giro del colector, estando configurada cada placa para su conexión a las cuatro esquinas de la caja de torsión de uno de los módulos adyacentes. La separación entre placas permite conectar las uniones cilindricas, a través de rodamientos, a pilones de soporte que proporcionan el apoyo sobre el que descansan los módulos. Normalmente, se utilizan rodamientos de material plástico y mínimo rozamiento para la conexión entre los pilones y las uniones cilindricas. Además, las piezas de unión se suelen diseñar para que, una vez conectadas a los módulos, las uniones cilindricas coincidan con la línea del centro de masas de los módulos. Así, cada colector se apoya sobre un conjunto de pilones y gira, apoyado sobre los pilones, alrededor un eje que pasa por las uniones cilindricas de las piezas de unión. The known module called Eurotrough comprises a torsion box of this type, as described in "Eurotrough - Parabolic Trough Collector Developed for Cost Efficient Solar Power Generation", by M. Geyer et al, 11 th Symposium on Concentrating Solar Power and Chemical Energy Technologies, September 4-6, 2002, Zurich. This document also describes a known joint piece, which is attached to the present application as Fig. 1. Additionally, Fig. 2 shows another type of joint piece known in the art. Both pieces of union are mainly formed by two parallel plates connected by a union cylindrical which constitutes the axis of rotation of the collector, each plate being configured for connection to the four corners of the torsion box of one of the adjacent modules. The separation between plates allows connecting the cylindrical joints, through bearings, to support pylons that provide the support on which the modules rest. Normally, plastic bearings and minimal friction are used for the connection between the pylons and the cylindrical joints. In addition, the union pieces are usually designed so that, once connected to the modules, the cylindrical joints coincide with the center line of the modules. Thus, each collector rests on a set of pylons and rotates, supported on the pylons, around an axis that passes through the cylindrical joints of the connecting pieces.
Sin embargo, estas piezas empleadas actualmente aún presentan serios inconvenientes, como un peso excesivo, un elevado coste de fabricación y un elevado tiempo de montaje. Nótese que un colector puede comprender 12 o más módulos, y que el tamaño de las piezas de unión está en el orden de varios cientos de Kg. DESCRIPCIÓN DE LA INVENCIÓN However, these parts currently used still have serious drawbacks, such as excessive weight, high manufacturing cost and high assembly time. Note that a collector can comprise 12 or more modules, and that the size of the joining pieces is in the order of several hundred kg. DESCRIPTION OF THE INVENTION
Según un aspecto de la invención, la pieza de unión de la presente invención resuelve los inconvenientes anteriores gracias a un nuevo diseño basado en una estructura que es conectable únicamente a dos esquinas opuestas de la caja de torsión de un primer módulo adyacente y a dos esquinas opuestas no correspondientes de la caja de torsión de un segundo módulo adyacente. According to one aspect of the invention, the connecting piece of the present invention solves the above drawbacks thanks to a new design based on a structure that is only connectable to two opposite corners of the torsion box of an adjacent first module and two opposite corners not corresponding to the torsion box of a second adjacent module.
En efecto, investigaciones realizadas por los inventores de la presente solicitud han dado como resultado, en contra de la opinión establecida en este campo de la técnica, que una pieza de unión conectada únicamente a un par de esquinas opuestas y no correspondientes de las respectivas cajas de torsión es capaz de soportar y transmitir adecuadamente el par de giro necesario para orientar de una hilera de módulos solares cilindro- parabólicos. Indeed, investigations carried out by the inventors of the present application have resulted, contrary to the opinion established in this field of the art, that a connecting piece connected only to a pair of opposite and non-corresponding corners of the respective torsion boxes is capable of supporting and transmitting properly the torque required to orient a row of parabolic trough solar modules.
En el presente documento, al hablar de "dos esquinas opuestas no correspondientes" se hace referencia a las dos esquinas opuestas de la caja de torsión del segundo módulo que no están enfrentadas con las dos esquinas opuestas de la caja de torsión del primer módulo. Esto quedará más claro a la vista de las figuras adjuntas, que se describirán más adelante en el presente documento. Además, el hecho de que la estructura sea "conectable únicamente" a las esquinas mencionadas significa que, cuando la pieza de unión de la invención está conectada a las esquinas mencionadas de las cajas de torsión de los módulos adyacentes, no existen partes de la estructura que queden enfrentadas a otras esquinas diferentes. Es decir, el hecho de que sea "conectable únicamente" a las esquinas mencionadas significa que no es posible su conexión a otras esquinas diferentes de las mencionadas empleando los medios habituales en este campo como bulones, tornillos, pernos, etc. In this document, when referring to "two opposite corners not corresponding", reference is made to the two opposite corners of the torsion box of the second module that are not facing the two opposite corners of the torsion box of the first module. This will become clearer in view of the attached figures, which will be described later in this document. Furthermore, the fact that the structure is "only connectable" to the mentioned corners means that, when the connecting piece of the invention is connected to the mentioned corners of the torsion boxes of the adjacent modules, there are no parts of the structure that face other different corners. That is, the fact that it is "connectable only" to the mentioned corners means that it is not possible to connect to other corners than those mentioned using the usual means in this field such as bolts, screws, bolts, etc.
Una ventaja de esta novedosa pieza de unión es su menor peso, ya que al estar enfrentada únicamente a dos esquinas opuestas de cada caja de torsión, en lugar de a las cuatro, su tamaño es menor con relación a las piezas conocidas en la técnica. Este menor tamaño no sólo facilita su manejo, sino que también se consigue un ahorro en material. Además, se reduce el tiempo de montaje, ya que la pieza de unión de la presente invención sólo requiere la fijación de cuatro puntos, correspondiente a las dos esquinas opuestas de las cajas de torsión de cada módulo, en lugar de los ocho puntos de las piezas de la técnica anterior. An advantage of this novel piece of union is its lower weight, since being faced only with two opposite corners of each torsion box, instead of four, its size is smaller in relation to the pieces known in the art. This smaller size not only facilitates its handling, but also saves material. In addition, the assembly time is reduced, since the connecting piece of the present invention only requires the fixation of four points, corresponding to the two opposite corners of the torsion boxes of each module, instead of the eight points of the prior art pieces.
Según una realización preferente, la estructura comprende dos placas (que se denominarán primera placa y segunda placa) dispuestas esencialmente en paralelo y conectadas mediante una unión, y donde la primera placa tiene una forma que permite su fijación únicamente a dos esquinas opuestas de la caja de torsión del primer módulo adyacente y la segunda placa tiene una forma que permite su fijación únicamente a dos esquinas opuestas no correspondientes de la caja de torsión del segundo módulo adyacente. According to a preferred embodiment, the structure comprises two plates (which will be called first plate and second plate) arranged essentially in parallel and connected by means of a joint, and where the first plate has a shape that allows it to be fixed only to two opposite corners of the torsion box of the first adjacent module and the second plate It has a shape that allows it to be fixed only to two non-corresponding opposite corners of the torsion box of the second adjacent module.
Preferentemente, las placas tienen forma esencialmente de boomerang, estando la unión ubicada en el ángulo que forman sus brazos y comprendiendo un par de medios de fijación en los extremos de los brazos. Según otra realización preferida, las placas tienen forma esencialmente triangular, estando en ese caso la unión rotativa y el par de medios de fijación situados en dos aristas del triángulo. En cualquiera de estos casos, las aristas pueden tener formas suaves y redondeadas para evitar puntos de concentración de tensiones cuando la pieza está en carga. La pieza de unión de la invención es preferentemente metálica, y más preferentemente de acero. Por otro lado, los medios de fijación pueden ser cualesquiera siempre que permitan una fijación adecuada de la pieza de unión a las respectivas cajas de torsión, aunque preferentemente se trata de orificios adecuados para pernos, pasadores o tornillos. BREVE DESCRIPCIÓN DE LAS FIGURAS Preferably, the plates are essentially boomerang shaped, the joint being located at the angle formed by its arms and comprising a pair of fixing means at the ends of the arms. According to another preferred embodiment, the plates are essentially triangular in shape, in which case the rotating union and the pair of fixing means are located on two edges of the triangle. In any of these cases, the edges can have smooth and rounded shapes to avoid stress concentration points when the piece is in load. The connecting piece of the invention is preferably metal, and more preferably steel. On the other hand, the fixing means can be any provided that they allow an adequate fixation of the connecting piece to the respective torsion boxes, although preferably these are suitable holes for bolts, pins or screws. BRIEF DESCRIPTION OF THE FIGURES
Las Figs. 1 y 2 muestran dos piezas de unión de acuerdo con la técnica anterior. La Fig. 3 muestra un ejemplo de pieza de unión de acuerdo con la presente invención. La Fig. 4 muestra la pieza de unión de la Fig. 3 fijada a un módulo solar con caja de torsión. Figs. 1 and 2 show two joining pieces according to the prior art. Fig. 3 shows an example of a connecting piece according to the present invention. Fig. 4 shows the connecting piece of Fig. 3 attached to a solar module with a torsion box.
La Fig. 5 muestra un colector formado por una hilera de módulos solares conectados por medio de múltiples piezas de unión según la Fig. 3. Fig. 5 shows a collector formed by a row of solar modules connected by means of multiple connecting pieces according to Fig. 3.
La Fig. 6 muestra los resultados de un estudio realizado por los solicitantes de la presente invención. REALIZACIÓN PREFERIDA DE LA INVENCIÓN Fig. 6 shows the results of a study conducted by the applicants of the present invention. PREFERRED EMBODIMENT OF THE INVENTION
A continuación se realiza una descripción de la invención basada en las figuras adjuntas. La Fig. 1 muestra la pieza de unión según la técnica anterior descrita en el documento "Eurotrough" mencionado anteriormente, mientras que la Fig. 2 muestra otra pieza de unión conocida. Se observa cómo ambas piezas comprenden una estructura configurada para su conexión simultáneamente a las cuatro esquinas de la caja de torsión (11 ) de los dos módulos solares (10) cilindro-parabólicos adyacentes. Es decir, el montaje de estas piezas de unión requiere la fijación de ocho puntos a las cajas de torsión correspondientes. A description of the invention based on the attached figures follows. Fig. 1 shows the connecting piece according to the prior art described in the "Eurotrough" mentioned above, while Fig. 2 shows another known connecting piece. It is observed how both pieces comprise a structure configured for simultaneous connection to the four corners of the torsion box (11) of the two adjacent solar modules (10) parabolic troughs. That is, the assembly of these connecting pieces requires the attachment of eight points to the corresponding torsion boxes.
Por otro lado, la Fig. 3 muestra la pieza de unión (1 ) de la presente invención, que en este ejemplo está formada por un par de placas (2a, 2b) esencialmente paralelas con forma de boomerang unidas por una unión (3), normalmente cilindrica. Cada placa (2a, 2b) comprende un par de medios de fijación (4a, 4b), que en este ejemplo son orificios adecuados para bulones. On the other hand, Fig. 3 shows the connecting piece (1) of the present invention, which in this example is formed by a pair of essentially parallel plates (2a, 2b) in the form of a boomerang joined by a joint (3) , usually cylindrical. Each plate (2a, 2b) comprises a pair of fixing means (4a, 4b), which in this example are holes suitable for bolts.
En la Fig. 4 se aprecia una pieza de unión (1 ) de este tipo ya conectada a la caja de torsión (11 ) de un módulo (10). Se observa cómo una primera placa (2a) está conectada a un par de esquinas diametralmente opuestas de la caja de torsión (11 ) del módulo (10) representado, mientras que la segunda placa (2b) está preparada para su conexión únicamente al par de esquinas diametralmente opuestas y no correspondientes de la caja de torsión (1 1 ) de un segundo módulo que no se muestra en la Fig. 4. El resultado final se muestra en la Fig. 5, donde se representa una hilera de módulos (10) unidos mediante una pluralidad de piezas de unión (1 ) de la presente invención. Se han representado esquemáticamente también en la Fig. 5 los pilones (12) de soporte de los módulos (10) que constituyen el colector, cada uno de los cuales está conectado, a través de un rodamiento de material plástico, a la unión (3) de la pieza (1 ) de la invención. El colector de la Fig. 5, por tanto, se orienta girando en torno a un eje horizontal que pasa por todas las uniones (3) de todas las piezas de unión (1 ) de la invención, y que normalmente coincide con la línea del centro de gravedad de los módulos (10). Por último, los inventores de la presente solicitud han realizado un estudio comparativo de comportamiento de diferentes modelos de piezas de unión según la técnica anterior, basadas en 4 puntos de conexión, y de la pieza de unión de la presente invención donde únicamente se conectan esquinas opuestas de una caja de torsión y esquinas opuestas no correspondientes de la otra caja de torsión. El estudio está basado en medidas de la tensión máxima que aparece en las diferentes piezas de unión ante una carga estándar similar a las cargas a las que están sometidas habitualmente durante su vida útil: se entiende que una pieza bien diseñada sufrirá, ante una carga dada, tensiones máximas más pequeñas que una pieza mal diseñada. Además, se tiene en cuenta en el estudio el peso de los diferentes modelos de piezas de unión: obviamente, cuanto menor sea el peso, mayor el ahorro en material. Por tanto, un parámetro 1/(PesoTmax) alto significa que la pieza de unión en cuestión sufre tensiones máximas bajas y/o que tiene un peso moderado. A connection piece (1) of this type already connected to the torsion box (11) of a module (10) can be seen in Fig. 4. It is observed how a first plate (2a) is connected to a pair of diametrically opposite corners of the torsion box (11) of the module (10) represented, while that the second plate (2b) is prepared for connection only to the pair of diametrically opposite and non-corresponding corners of the torsion box (1 1) of a second module not shown in Fig. 4. The final result is shown in Fig. 5, where a row of modules (10) joined by a plurality of connecting pieces (1) of the present invention is shown. The support pylons (12) of the modules (10) constituting the manifold, each of which is connected, through a plastic bearing, to the joint (3) are also schematically represented in Fig. 5. ) of the part (1) of the invention. The collector of Fig. 5, therefore, is oriented by rotating around a horizontal axis that passes through all the joints (3) of all the connecting pieces (1) of the invention, and which normally coincides with the line of the center of gravity of the modules (10). Finally, the inventors of the present application have carried out a comparative study of the behavior of different models of joining pieces according to the prior art, based on 4 connection points, and of the connecting piece of the present invention where only corners are connected opposite of a torsion box and opposite corners not corresponding to the other torsion box. The study is based on measurements of the maximum tension that appears in the different pieces of union before a standard load similar to the loads to which they are usually subjected during their useful life: it is understood that a well designed piece will suffer, before a given load , maximum tensions smaller than a poorly designed part. In addition, the weight of the different models of joining parts is taken into account in the study: obviously, the lower the weight, the greater the savings in material. Therefore, a high parameter 1 / (PesoTmax) means that the joint in question suffers low maximum tensions and / or has a moderate weight.
La siguiente tabla muestra los datos obtenidos en este estudio, que se ha representado gráficamente en la Fig. 6. Los pesos están en kg. y las tensiones máximas en MPa. Los modelos de pieza de unión 1 -10 corresponden a piezas que requieren la conexión de los cuatro puntos de cada caja de torsión, mientras que la pieza 1 1 del estudio es la pieza de unión de la presente invención. The following table shows the data obtained in this study, which It is represented graphically in Fig. 6. Weights are in kg. and the maximum tensions in MPa. The connection piece models 1 -10 correspond to parts that require the connection of the four points of each torsion box, while the part 1 1 of the study is the connection piece of the present invention.
Modelo Model
a Peso Tmax 1/(Peso*Tmax) a Weight Tmax 1 / (Weight * Tmax)
1 175 764 74,8 1 175 764 74.8
2 223 728 61 ,6 2 223 728 61.6
3 198 762 66,3 3 198 762 66.3
4 162 709 87, 1 4 162 709 87, 1
5 155 971 66,4 5 155 971 66.4
6 166 764 78,8 6 166 764 78.8
7 152 3744 17,6 7 152 3744 17.6
8 209 442 108,3 8 209 442 108.3
9 165 740 81 ,9 9 165 740 81.9
10 232 835 51 ,6 10 232 835 51.6
11 144 327 212,4 11 144 327 212.4
Se observa en cómo la pieza de unión de la presente invención, número 1 1 , no sólo tiene un peso menor que el resto de piezas consideradas, sino que además la tensión máxima de la pieza es la menor de todas. Sorprendentemente, por tanto, la pieza de unión de la invención sería capaz de soportar cargas mayores aún teniendo un menor peso que el resto. It is observed in how the joint piece of the present invention, number 1 1, not only has a lower weight than the rest of the pieces considered, but also the maximum tension of the piece is the lowest of all. Surprisingly, therefore, the connecting piece of the invention would be capable of supporting larger loads even having a lower weight than the rest.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/ES2010/070206 WO2011121149A1 (en) | 2010-03-31 | 2010-03-31 | Coupling part for adjacent parabolic trough solar modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/ES2010/070206 WO2011121149A1 (en) | 2010-03-31 | 2010-03-31 | Coupling part for adjacent parabolic trough solar modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011121149A1 true WO2011121149A1 (en) | 2011-10-06 |
Family
ID=43234232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2010/070206 Ceased WO2011121149A1 (en) | 2010-03-31 | 2010-03-31 | Coupling part for adjacent parabolic trough solar modules |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2011121149A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8952307B2 (en) | 2011-06-08 | 2015-02-10 | Heliofocus Ltd. | Spatial structure assemblies |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1903155A1 (en) * | 2006-09-22 | 2008-03-26 | Gossamer Space Frames | Space frames and connection node arrangement for them |
| DE202008015304U1 (en) * | 2008-11-19 | 2009-02-26 | Terrafix Gmbh | Mounting arrangement for solar panels |
| US20090095283A1 (en) * | 2007-10-15 | 2009-04-16 | Gary Noble Curtis | Multiplexed torque brake system for a solar concentrator assembly |
-
2010
- 2010-03-31 WO PCT/ES2010/070206 patent/WO2011121149A1/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1903155A1 (en) * | 2006-09-22 | 2008-03-26 | Gossamer Space Frames | Space frames and connection node arrangement for them |
| US20090095283A1 (en) * | 2007-10-15 | 2009-04-16 | Gary Noble Curtis | Multiplexed torque brake system for a solar concentrator assembly |
| DE202008015304U1 (en) * | 2008-11-19 | 2009-02-26 | Terrafix Gmbh | Mounting arrangement for solar panels |
Non-Patent Citations (2)
| Title |
|---|
| M. GEYER ET AL.: "Eurotrough - Parabolic Trough Collector Developed for Cost Efficient Solar Power Generation", 11TH SYMPOSIUM ON CONCENTRATING SOLAR POWER AND CHEMICAL ENERGY TECHNOLOGIES, 4 September 2002 (2002-09-04) |
| M.GEYER, E. LÜPFERT, ET AL.: "Eurotrough - Parabolic Trough Collector - Developed for Cost Efficient Solar Power Generation", 6 September 2002 (2002-09-06), XP002613289, Retrieved from the Internet <URL:http://www.sbp.de/es/fla/contact/download/EuroTrough_Paper2002.pdf> [retrieved on 20101207] * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8952307B2 (en) | 2011-06-08 | 2015-02-10 | Heliofocus Ltd. | Spatial structure assemblies |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2716850T3 (en) | Support for solar energy collectors | |
| ES2372827B1 (en) | IMPROVED STRUCTURE APPLICABLE TO SOLAR CYLINDER-PARABOLIC ENERGY COLLECTORS. | |
| ES2344311T3 (en) | PARABOLIC SOLAR COLLECTOR SYSTEMS WITH ROTATING FOLLOW MEANS. | |
| ES2430227A2 (en) | Torque transfer between trough collector modules | |
| ES2758188T3 (en) | Solar tracker with free space reducing device | |
| WO2021084146A1 (en) | Construction tube | |
| ES2790832T3 (en) | Segmented pitch ring for a wind turbine blade pitch system | |
| WO2010072871A1 (en) | Solar tracking device for panels | |
| WO2012089870A1 (en) | Support module for a solar collector having a triangular substructure | |
| WO2011154567A1 (en) | Structure for cylindrical solar collector | |
| ES2552878T3 (en) | Wind turbine with bearing support | |
| ES2389798B2 (en) | Solar tracker for solar panel orientation | |
| ES2375887B1 (en) | STRUCTURE WITH PRIMARY REFLECTOR HOLDING BEAMS. | |
| WO2011121149A1 (en) | Coupling part for adjacent parabolic trough solar modules | |
| ES2446890A1 (en) | Support structure for cylindrical solar collector of concentration and solar collector comprising the aforementioned structure (Machine-translation by Google Translate, not legally binding) | |
| ES2849598T3 (en) | Solar central and central symmetry heliostat with a receiver and a plurality of heliostats | |
| ES2843253T3 (en) | Solar unit assembly and construction procedure of such assembly | |
| ES2453716A1 (en) | Structure for a dish-type point-based solar concentration system, and concentration system including said structure | |
| ES2395590B1 (en) | RAPID UNION SYSTEM OF CONFORMED SHEETS. | |
| ES2209591B1 (en) | WIND ENERGY RECEIVER. | |
| ES2999541T3 (en) | Parabolic trough collector module, parabolic trough collector module unit, and solar thermal power plant | |
| PT2518316E (en) | SUPPORT DEVICE FOR A SOLAR ENERGY GENERATOR | |
| ES2400275B1 (en) | Solar collector module | |
| ES2390554A1 (en) | Device for fixing the supports of the cylinder-parabolic mirror to the beam of a solar collector (Machine-translation by Google Translate, not legally binding) | |
| ES2738924A1 (en) | Torque-transmitting mechanism for solar tracker activation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10719019 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 10719019 Country of ref document: EP Kind code of ref document: A1 |