| 摘要 |
A burner unit is disclosed which is particularly suitable for use with a furnace for burning carbonaceous waste gases. The air and fuel gas mixture for igniting the burner is mixed at the front end of the burner, to prevent "flashback" into the burner body. Mounted on the front end of the burner is a closure disc, which is connected into an air operator unit. The air operator unit moves the closure disc backward or forward in response to air pressure fluctuation in the mixing chamber. Moving the disc back and forth regulates the velocity of air which passes through an annular opening defined between the disc and the front end of the burner. Regulating the velocity of the air enables precise control of the firing rate of the burner.
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