| 摘要 |
A solar heating device wherein a flexible-walled container of reinforced thermoplastic material serves as a solar fluid heater. The flexible-walled container is formed of fabric reinforced sheets of fluoroplastic material, such as polytetrafluoroethylene (Teflon) fusibly bonded together to provide fluid flow passages therebetween. Fluoroplastic materials are unaffected by outdoor weathering and have almost complete chemical inertness and are the slipperiest of all solids to provide low resistance to flow of fluid through the passages.
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