| 摘要 |
Apparatus for concentrating solar radiation in an absorber (1'), with an inflatable concentrator cushion (2) which has a covering foil element (3'') with a transparent inlet window (3) for letting solar radiation in and a reflector foil (6), dividing the concentrator cushion (2) into at least two cavities (4, 5), for concentrating the solar radiation in an absorber (1'), with a pivoting device (7) by means of which the concentrator cushion (2) can be pivoted, in particular about its longitudinal axis, and with a holding device (31), attached to the pivoting device, for holding the concentrator cushion (2), which holding device (31) has an upper longitudinal beam (32), extending in the longitudinal direction of the concentrator cushion (2), for hanging the absorber (1'), wherein the upper longitudinal beam (32) is arranged at an essentially airtight closed upper passage opening (34) of the concentrator cushion (2). The upper longitudinal beam (32) has at least two longitudinal belts (35) which extend in the longitudinal direction of the concentrator cushion (2) and which are each connected to a longitudinal rim, bounding the upper passage opening (34), of the covering foil element (3''). A sealing foil strip (36), which bridges the upper passage opening (34) of the concentrator cushion (2), is provided between the longitudinal belts (35). |
