| 摘要 |
A solar collector unit for collecting solar heat and for transferring it to air to be heated comprising a collector or plurality of collectors which or each of which comprises an absorber plate arranged in thermally conductive contact with the evaporator part of a heat pipe which contains a heat-transporting medium, the absorber plate and the evaporator part being surrounded by an evacuated transparent envelope and the condenser part of the heat pipe projecting beyond the envelope and being provided with means which enlarge its heat-transferring area. The unit further comprises a duct section which comprises an inlet duct and an outlet duct for the medium to be heated, which ducts are separated from one another by a wall. This separating wall is provided with an aperture or apertures which or each of which is aligned with an associated aperture of the same or larger diameter in an outer wall of the duct section to form therewith a pair of aligned apertures, the aperture or apertures in said outer wall having a diameter corresponding to that of the collector envelope or envelopes and a collector being arranged in the or each pair of aligned apertures so that the envelope of the collector engages the outer wall of the duct section in a sealing manner, the means which enlarge the heat-transferring area of the condenser part of the heat pipe of the or each collector being surrounded by a wall which adjoins the boundary of the aperture or respective aperture in the separating wall. |
