The invention discloses a burning quality analysis and
control system used for industrial stoves such as
heating furnace,
hot blast stove, boiler. Sampling
pipe disposed at
tail of the stove or in
flue transfers sampled
flue gas to purifying sampling chamber after the
flue gas has been cooled, and
oxygen sensor detects
oxygen content value of the
flue gas. As the
oxygen content value of the
flue gas in stove exceeds the predetermined value, i.e. excessive air distribution, the oxygen transmits the
signal to a controller for comparing, operating or
processing, and then transmits the processed
signal to speed
governor to reduce the rotation speed of blower group, i.e. air reduction, until air amount is appropriate; contrarily, if the
oxygen content value of the
flue gas in stove, detected by the
oxygen sensor, is lower than the predetermined value, i.e. lacking air distribution, the speed
governor will increase the rotation speed of the blower group, i.e. air increase, until air amount is appropriate, thereby, keeping the air consumption
system of the stove in region of 1.0 to 1.1. The analysis and
control system can not only improve burning quality of the industrial stove thereby providing economic benefit for user, but can also greatly reduce the emission of
nitrogen oxides or
carbon monoxide, therefore, has great popularization value.