| 摘要 |
A flat plate solar collector unit comprises a bottom plate (5), a frame (1-4) enclosing an absorber placed above the bottom plate and provided with ducts for a flowing heat transport medium, and a cover (17) placed above the absorber of a material transparent to solar radiation. The frame comprises prefabricated frame members (1-4) joined with mechanical devices. The bottom plate (5) is placed in the frame (1-4) and is made of a composite material, Composed of preferably cellular plastic covered with sealing aluminum foil. A solar collector comprises several such adjacent collector units and the frame of adjacent units have a frame member common. A method of producing a solar collector as described above is that prefabricated frame members (1-4) are assembled, preferably on the site, with mechanical devices, to a rigid frame. The bottom plate (5) is then positioned in the frame, and the absorber is placed in the frame above the bottom plate and one of its headers is fixed in few points to the adjacent transverse frame member by fastening means. The cover material (17) is fixed to the edges of the frame to cover and seal the unit. |
