A METHOD FOR MONITORING AND CONTROLLING THE STABILITY OF A BURNER OF A FIRED HEATER

A METHOD FOR MONITORING AND CONTROLLING THE STABILITY OF A BURNER OF A FIRED HEATER

The invention includes method and apparatus for controlling the stability of a burner, preferably a low NOx burner, of a natural draft heater. The method includes measuring the draft over a time period and generating a measured output from which a draft function is determined that defines the relati...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: JOHNSON, GREGORY LYNN, HAMILTON, WILLIAM LARRY
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
AIR SUPPLY
BLASTING
BURNERS
COMBUSTION APPARATUS
COMBUSTION PROCESSES
DRAUGHT-INDUCING
HEATING
LIGHTING
MECHANICAL ENGINEERING
REGULATING OR CONTROLLING COMBUSTION
SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS
WEAPONS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention includes method and apparatus for controlling the stability of a burner, preferably a low NOx burner, of a natural draft heater. The method includes measuring the draft over a time period and generating a measured output from which a draft function is determined that defines the relationship between the draft and time during the time period. A value for the burner stability is defined that is representative of a stable burner operation. The draft function is compared to the stable burner value to determine a differential value, and the operation of the fired heater is adjusted in response to the differential value. The apparatus includes means for measuring the draft over a time period and means for generating a measured output from which a draft function is determined that is proportional to the cyclic variation of the draft during the time period. Further included is means for comparing the draft function to a defined burner stability value representative of a stable burner operation to determine a differential value and means for adjusting the operation of the fired heater in response to the differential value.