초록 ▼

A furnace for controlling flame temperature and emission of NOx comprising a burner to which fuel and air are supplied and product of combustion are discharged, wherein said air is vitiated with said products of combustion; a means for sensing furnace operating parameters including a flow rate senso

A furnace for controlling flame temperature and emission of NOx comprising a burner to which fuel and air are supplied and product of combustion are discharged, wherein said air is vitiated with said products of combustion; a means for sensing furnace operating parameters including a flow rate sensor for sensing a flow rate of fuel to said burner and a first temperature sensor for sensing furnace temperature; and a means for controlling the amount of air vitiated with products of combustion, said controlling means in communication with said sensing means such that the amount of products of combustion vitiated with the air is controlled as a function of at least one of the rate of flow of fuel to said burner, the air temperature, and the furnace temperature, said control means is responsive throughout a firing range of said burner.

대표청구항 ▼

A furnace for controlling flame temperature and emission of NOx comprising: a. at least one burner to which fuel and air are supplied and products of combustion are discharged, wherein said air is vitiated with said products of combustion; and b. means for controlling the amount of vitiation with sa

A furnace for controlling flame temperature and emission of NOx comprising: a. at least one burner to which fuel and air are supplied and products of combustion are discharged, wherein said air is vitiated with said products of combustion; and b. means for controlling the amount of vitiation with said products of combustion as a function of at least two of an air preheat temperature, a furnace temperature and a fuel flow rate.