초록 ▼

An ammonia injection grid for a selective catalytic reduction (SCR) system that provides uniform distribution of ammonia to the SCR catalyst in NOx reduction systems for heat recovery steam generation systems, packaged boilers, simple cycle catalyst systems and fired heaters for superior operational

An ammonia injection grid for a selective catalytic reduction (SCR) system that provides uniform distribution of ammonia to the SCR catalyst in NOx reduction systems for heat recovery steam generation systems, packaged boilers, simple cycle catalyst systems and fired heaters for superior operational efficiency. The ammonia injection grid includes an injection tube having at least one nozzle for injecting ammonia into a flow of flue gas. The ammonia injection grid also includes a corrugated turbulence enhancer associated with the injection tube to generate turbulent wake to enhance turbulent mixing.

대표청구항 ▼

What is claimed is: 1. An ammonia injection grid, comprising:an injection tube having at least one nozzle for injecting ammonia into a flow of flue gas, wherein the injection tube extends generally transverse to the flow of flue gas, wherein the at least one nozzle of the injection tube forms an ups

What is claimed is: 1. An ammonia injection grid, comprising:an injection tube having at least one nozzle for injecting ammonia into a flow of flue gas, wherein the injection tube extends generally transverse to the flow of flue gas, wherein the at least one nozzle of the injection tube forms an upstream angle relative to the flow of flue gas; anda corrugated turbulence enhancer immediately adjacent to a downstream side of the injection tube to generate turbulent wake in order to enhance turbulent mixing, wherein the corrugated turbulence enhancer is aligned substantially parallel to the injection tube, wherein the injection tube is seated within a furrow of the corrugated turbulence enhancer.