PROCEDE ET DISPOSITIF POUR LA RECUPERATION DE CHALEUR A PARTIR DES FUMEES DE FOURS,NOTAMMENT DE FOURS A VERRE

摘要

Heat from hot furnace gases passing through a flue 21 is recuperated to heat air by passing the gases through a high temperature exchanger 1a from top to bottom and then through a lower temperature exchanger 2a from bottom to top, the exchangers being positioned with their longitudinal axes extending vertically and being laterally spaced from each other (e.g. side-by-side) the air (e.g. combustion air) passing first through the heat exchanger 2a in the opposite general direction to that of the gases, and then through the heat exchanger 1a in the same general direction as the gases. Deposits from the hot gas which form on the heat exchange surfaces and subsequently become detached therefrom, collect in a chamber 20 of the flue and are removed at 22.