SOLAR COLLECTOR HAVING A MULTI-TUBE RECEIVER, THERMOSOLAR PLANTS THAT USE SAID COLLECTOR AND METHOD FOR OPERATING SAID PLANTS

The invention relates to a solar collector having a multi-tube receiver, to thermosolar plants that use said collector and to a method for operating said plants, where the multi-tube receivers have a primary reflector (5) formed by two continuous symmetrical parametric curves, a secondary reconcentr...

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1. Verfasser: NUNEZ BOOTELLO, JUAN PABLO
Format: Patent
Sprache:eng ; fre ; spa
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Zusammenfassung:The invention relates to a solar collector having a multi-tube receiver, to thermosolar plants that use said collector and to a method for operating said plants, where the multi-tube receivers have a primary reflector (5) formed by two continuous symmetrical parametric curves, a secondary reconcentrator (6) and a receiver (1) that includes several connected tubes (7) with a circular cross-section, the center of gravity of the collector being located very close to the axis of rotation of the collector itself, and the concentration ratio C/Cmax being greater than 0.63, having 100% collection efficiency and having a maximum of two reflections of solar rays (8). The thermosolar plants that use said multi-tube receivers combine same with cylindrical or trough collectors with a tubular receiver, and can be used for the direct generation of steam (with a saturation and overheating zone) or the indirect generation of steam (with the collectors connected in series). Colector solar con receptor multitubular, plantas termosolares que contienen dicho colector y método de operación de dichas plantas donde los receptores multitubulares cuentan con un reflector primario (5) formado por dos curvas paramétricas simétricas y continuas, un reconcentrador secundario (6) y un receptor (1) que comprende varios tubos (7) unidos de sección circular, situándose el centro de gravedad del colector muy próximo al eje de giro del propio colector y siendo la relación de concentración C/Cmax mayor de 0,63, con una eficiencia de colección del 100% y con un número máximo de reflexiones de los rayos solares (8) de dos. Las plantas termosolares que contienen dichos receptores multitubulares los combinan con colectores cilindro paramétricos o cilindro parabólicos con receptor tubular y pueden ser para generación directa de vapor (con zona de saturado y sobrecalentado) o no (con los colectores conectados en serie). La présente invention concerne un capteur solaire à récepteur multitubulaire, des centrales thermosolaires comprenant ledit capteur et un procédé de fonctionnement desdites centrales dans lesquelles les récepteurs multitubulaires comprennent un réflecteur primaire (5) formé par deux courbes paramétriques symétriques et continues, un reconcentrateur secondaire (6) et un récepteur (1) qui comprend plusieurs tubes (7) reliés de section circulaire, le centre de gravité du capteur se situant très près de l'axe de rotation du capteur et le dispositif présentant la relation de concentrati