US 12,760,891 B2 · Combustion gas cooling device

Abstract

The present disclosure comprises: a mixing duct equipped with an inlet through which combustion gas flows in and an outlet through which the combustion gas flowing in from the inlet flows out; a cooling duct that allows cooling gas, which has a lower temperature than the combustion gas, to flow out into the mixing duct, and generates a mixed gas consisting of the combustion gas and the cooling gas; and an expansion duct equipped with an inlet that is connected to the mixing duct and through which the mixed gas flows in and an outlet through which the mixed gas flowing in from the inlet flows out. The mixing duct has a shape with an equal cross-sectional area at each position from the inlet to the outlet. The expansion duct provides a denitrification device having a shape, the cross-sectional area of which gradually expands from the inlet to the outlet.

Claims8

Dependent claims

A combustion gas cooling device comprising:

a first duct including a first inlet into which a combustion gas flows, and a first outlet through which the combustion gas flowing in from the first inlet flows out;
a cooling duct that causes a cooling gas having a temperature lower than a temperature of the combustion gas to flow out into the first duct, and generates a mixed gas in which the combustion gas and the cooling gas are mixed;
and
a second duct including a second inlet connected to the first duct and into which the mixed gas flows, and a second outlet through which the mixed gas flowing in from the second inlet flows out,
wherein the first duct has a shape whose cross-sectional area is equal at each position from the first inlet toward the first outlet, and
the second duct has a shape whose cross-sectional area gradually expands from the second inlet toward the second outlet.

3 more elements

Dependencies are inferred from the claim text.

Combustion gas cooling device

Life of this patent

Combustion gas cooling device

Life of this patent

Abstract

Claims8