| 摘要 |
A reactor for reducing the contents of nitrogen oxides and sulphur oxides in combustion gases is in the form of a post-combustion chamber to be connected after a combustion chamber. The reactor has a casing (10) consisting of a generally cylindrical main part (11) passing at the top into a dome-shaped outlet part (12) with an outlet opening (13). Around the casing (10) of the reactor, there is provided a heatinsulated wall (20) whose inner side has substantially the same shape as the casing (10) and which is eccentrically disposed in relation to the casing (10). The casing (10) of the reactor accommodates a partition (15) which is conical and has its apex directed towards the outlet opening (13). A gap (17) is formed between the shell (11) and the partition (15). At the inlet end (14) of the shell, an inlet funnel (18) is provided at a certain distance from the inlet end so as to form a gap (19). A heat exchanger (40) is provided for preheating secondary air supplied through a secondary air intake (25) into the gap (21) between the casing (10) and the wall (20) at a certain distance from the opening (13). At the bottom, the gap (21) is connected to a collecting box (23) and an outlet pipe (24). Fig. 1 elected for publication |
