Stoves and furnaces – Liquid heater – Solid fuel burner and submerged under the liquid
Patent
1997-04-10
1999-11-16
Yeung, James C.
Stoves and furnaces
Liquid heater
Solid fuel burner and submerged under the liquid
126360R, 119 73, F24H 136
Patent
active
059838892
ABSTRACT:
A portable water tank heating system utilizes a continuous hollow tubular loop that contains a fluid which is circulated through the tubular loop by convection to prevent the water in a drinking tank from freezing. The system is made up of the continuous loop having an outlet line containing hot fluid under relatively higher pressure and a return line containing cold fluid under relatively lower pressure and a protective housing having hot and cold chambers for holding various components including sensors to maintain the temperature of the fluid above freezing in the system. The fluid in the continuous loop flows from a reservoir and travels past a gas burner in the hot chamber for heating the fluid. As the fluid flows through a heat exchanger in a drinking tank, the fluid releases heat to the cold water in the tank before flowing back into the housing through the return line. The fluid then returns to the reservoir to repeat the operational cycle. The housing has air inlet and exhaust ducts and baffles which allow proper air flow for the burner operation even when the system is subjected to severe inclement weather.
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