Automatic feedback control method of the concentration of oxygen in the exhaust gas capable of enhancing burner efficiency and system thereof

• Main Authors: HE, KUN, HUANG, DA-SONG
• Format: Patent
• Language: Chinese; English
• Published: 01.06.2013
• Subjects: BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE; FURNACES; HEATING; KILNS; LIGHTING; MECHANICAL ENGINEERING; OVENS; REGULATING OR CONTROLLING COMBUSTION; RETORTS; WEAPONS

The invention discloses an automatic feedback control method of the concentration of oxygen in the exhaust gas capable of enhancing burner efficiency and its system. The method comprises: retrieving multiple records of a burner operation historical data, each record of the burner operation historical data includes a burner efficiency historical data as well as an exhaust gas oxygen concentration historical data; according to the burner efficiency historical data as well as the exhaust gas oxygen concentration historical data to generate a burner efficiency statistical model, based on the burner efficiency historical data to calculate a burner efficiency target value; by substituting the burner efficiency target value into the statistical model to compute a statistical concentration of oxygen in the exhaust gas; and to determine whether concentration of oxygen in the exhaust gas is within a safe operating range, if the concentration of oxygen in the exhaust gas falls between the upper limits and concentration