Combustion – Process of combustion or burner operation – Controlling or proportioning feed
Patent
1998-09-18
2000-04-18
Lazarus, Ira S.
Combustion
Process of combustion or burner operation
Controlling or proportioning feed
431 90, 431 75, 431 24, 122DIG7, F23N 1144
Patent
active
060508078
ABSTRACT:
A method and an apparatus for controlling an amount of air of a gas boiler are disclosed. Detecting section detects a flame voltage of the gas boiler to output a flame voltage value signal which represents a flame voltage value. An air supplying fan supplies air into the gas boiler. A sensing section senses a rotative velocity of the air supplying fan to output a sensing signal which represents a present rotative velocity of the air supplying fan. A control section reads out a minimum rotative velocity of the air supplying fan, which is required for preventing a yellow flame, corresponding to a presently-supplied gas amount which is supplied to the gas boiler, receives the sensing signal which represents a present rotative velocity of the air supplying fan from the sensing section, receives the flame voltage value signal which represents the flame voltage value from the detecting section, controls the rotative velocity of the air supplying fan by comparing the flame voltage value with a predetermined reference flame voltage value, and controls the rotative velocity of the air supplying fan by comparing the present rotative velocity of the air supplying fan with the minimum rotative velocity. As a result, the lifting and the yellow flame which are generated from the flame of the gas boiler may be prevented. Also, the loss of the heating power of the gas boiler may be prevented.
REFERENCES:
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patent: 4927351 (1990-05-01), Hagar et al.
patent: 5882185 (1999-03-01), Kim
Cocks Josiah C.
Daewoo Electronics Co. Ltd.
Lazarus Ira S.
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