초록 ▼

A regenerative thermal oxidizer (H-101) includes a number of heat exchange columns (A, B) topped by a combustion chamber (C-101). Contaminated air is directed into one of the columns and oxidation is completed as the flow passes through the combustion chamber (C-101). From the combustion chamber (C-

A regenerative thermal oxidizer (H-101) includes a number of heat exchange columns (A, B) topped by a combustion chamber (C-101). Contaminated air is directed into one of the columns and oxidation is completed as the flow passes through the combustion chamber (C-101). From the combustion chamber (C-101), the now clean air flows vertically downward through another column and then is directed via an outlet through an outlet manifold and released to atmosphere or recirculated back to the oxidizer (H-101). A combustible fuel is added to the contaminated air prior to its entry into one of the columns. The addition of the combustible fuel is regulated by continuously monitoring the inlet and outlet temperatures (TE-101A, TE-108A), and comparing a difference between these temperatures to a predetermined value. Further control can be achieved by measuring the flow of contaminated air to the oxidizer (H-101) via pressure differential and coordinating that measurement with the temperature differential measurement.

대표청구항 ▼

[ What is claimed is:] [1.] A regenerative oxidizer for purifying a gas, comprising:at least first and second regenerator columns, each of said columns comprising heat exchange media;gas inlet means and gas outlet means in communication with each of said regenerator columns;a combustion chamber in c

[ What is claimed is:] [1.] A regenerative oxidizer for purifying a gas, comprising:at least first and second regenerator columns, each of said columns comprising heat exchange media;gas inlet means and gas outlet means in communication with each of said regenerator columns;a combustion chamber in communication with each of said regenerator columns;means in said combustion chamber for generating heat;valve means for alternately directing said gas into the inlet means of one of said columns in a first direction and through another of said columns in a second direction;first temperature sensing means for continuously detecting temperature of said gas in a location upstream of said first column;second temperature sensing means for continuously detecting temperature of said gas in a location downstream of said second column;calculating means for calculating the difference between said temperatures detected by said first and second temperature sensing means; andadding means responsive to said calculating means for adding fuel to said gas upstream of said first column when thecalculated difference is below a predetermined level.