| 摘要 |
A solar heating and cooling system comprising a multi-tiered collector and heat exchanger that is mounted on a roof or installed in a vertical wall. Each tier of the exchanger includes a plurality of longitudinal channels with upper and lower manifolds communicating with all of the channels. A duct extends from each manifold into the premises being heated with one duct being connected to an air blower. The exchanger also includes an upper or outer flat metallic sheet with a perforated feed pipe extending across the upper end of this sheet and a drain pipe that communicates with the lower end of this sheet. A heat trap in the form of a transparent sheet is spaced from this sheet. A multi-decked, louvered, enclosed evaporator is mounted on the ground over a non-pressurized liquid storage tank with the upper end of the evaporator below the lower end of the exchanger. The upper end of the evaporator is connected to the drain pipe and the storage tank to the feed pipe with a pump being associated with the storage tank and the latter connection. Valves are included in the pipes which connect the evaporator and storage tank to the exchanger and control the direction and flow of liquid to and from the exchanger. A second heat exchanger is submerged in the liquid in the storage tank and is connected to any other equipment requiring liquid at a desired temperature. A float control valve is included in the storage tank to maintain a desired liquid level therein.
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