| 摘要 |
PROBLEM TO BE SOLVED: To provide a radiant tube (hereinafter described as RT) burner control device of a continuous annealing furnace capable of performing a stable main burner ignition.SOLUTION: This invention provides an RT burner control device capable of performing a stable main burner ignition in an RT burner of a continuous annealing furnace by setting a resonance area including an ignition mode condition in which a vortex shedding frequency coincides with any one of internal RT (a radiant tube) air-column resonance frequency, helmholtz resonance frequency or air-column resonance frequency in each of the pipes, and changing the ignition mode condition when the ignition mode condition is not a condition in which it passes through the resonance area in a period lower than a flame failure occurrence time. |
