Liquid heaters and vaporizers – Plants – Feed water heaters
Patent
1982-10-21
1983-12-20
Yuen, Henry C.
Liquid heaters and vaporizers
Plants
Feed water heaters
122 32, 122367R, 237 19, F27B 3318
Patent
active
044210620
ABSTRACT:
A heating chamber is provided for receiving well effluent therein including oil, water and gas and a heated chamber is also provided for containing a heat exchange liquid to be heated. Liquid heat exchange coils are disposed in the chambers and are serially connected in a closed loop flow path with gas pressure operated pump structure operatively associated with the closed loop flow path for pumping liquid therethrough. Gas fired heating structure is operatively associated with the heated chamber for heating liquid therein and a gas outlet from the heating chamber comprises a source of well gas under pressure directed through supply structure supplying well gas to the pump and burner structures. The supply structure includes a gas flow line, in which the pump structure is serially disposed, extending from the gas source to the pump structure and thereafter to the burner structure. The gas flow line includes a thermostatically controlled flow valve therein for opening and closing the flow line responsive to predetermined low and high temperatures in the heating chamber and a gas pressure operated control valve is connected in the gas flow line between the burner and the pump under the control of a self venting thermostat responsive to the temperature of the heated chamber and disposed in a gas supply line communicated with the gas outlet at its inlet end and with the gas pressure operated control valve at its outlet end.
REFERENCES:
patent: 4037779 (1977-07-01), Roy et al.
patent: 4037786 (1977-07-01), Munroe
patent: 4136731 (1979-01-01), DeBoer
patent: 4222350 (1980-09-01), Pompei et al.
patent: 4352341 (1982-10-01), Styslinger
Jacobson Harvey B.
Yuen Henry C.
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