Combustion and feedwater controller for a flash boiler

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United States of America Patent

PATENT NO 4593654
SERIAL NO

06656093

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A feedwater controller for a flash type water tube boiler wherein feedwater flow through steam generating coils heated by combustion gases is compensated and adjusted, in order to provide proper combustion heat input over a broad range of boiler operating pressures and feedwater temperatures. Flowing feedwater affects combustion heat input through predetermined variations in fuel and air input to the boiler's burner. As disclosed, the first embodiment utilizes temperature and pressure compensating gates in a cylindrical orifice containing a spherical flow control member. Fuel/air control of the generator is provided through movement of the flow control member due to the forces induced by flowing feedwater. In an alternate embodiment, utilizes a piston in the feedwater flow path having a slotted cylindrical metering orifice attached thereto. Internal of the cylindrical orifice is a cooperating temperature compensated helical flow control member. Feedwater flow adjustments over a wide range of feedwater temperature is provided.

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Patent Owner(s)

Patent OwnerAddress
VAPOR CORPORATION A DE CORPCHICAGO IL

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McInerney, Michael J Highland Park, IL 7 119

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