| 摘要 |
A solar fluid heater consisting of a solar collector and a storage vessel. The solar collector includes a supply outlet (B) and a return inlet (A), a supply conduit, leading the heated fluid from the supply outlet (B) to the vessel, and a return conduit, returning the cold fluid from the vessel to the return inlet (A). The supply conduit comprises two contiguous portions, a first portion substantially exposed to the same night temperature as is the collector, and extending between the supply outlet and a transition zone (C). The first supply conduit portion (BC) takes an altogether descending course from the supply outlet (B) to at least the transition zone (C), and a second portion (CD) is adapted to maintain it at night at a temperature substantially equalling that of the vessel contents and extends from the transition zone (C) to the outlet opening (D) of the supply conduit inside the vessel, whereby, during the night, the tempeature of the first return-conduit portion (BC) is substantially equal to the temperature of the vessel contents. |
