regenerative burner combustion system and combustion process

摘要

A regenerative burner (A, B) for a combustion chamber (2) and a combustion system comprising a combustion chamber (2) equipped with a pair of the burners (A, B) are described, in which each burner includes a fuel duct (3) for supplying fuel to the chamber and a regenerative preheater (10) containing heat storage material (8) for preheating air for supply to the chamber and alternately for receiving hot exhaust gases (16) from the chamber to reheat its storage material (8), the fuel duct (3) and the preheated-air supply duct (6) opening directly into the chamber at mutually spaced positions so that fuel and air therefrom mix and burn within the chamber, and a cool-air supply duct (5) which opens around the outlet of the fuel supply duct, which also has a stabiliser (4), for supplying cool-air for mixing with the fuel to form a relatively low-temperature stable flame. A method of achieving fuel-in-air combustion is also described. MATH