REACTION CHAMBER WITH A PROTECTED SURFACE

摘要

A reaction chamber (101) has a surface (105) to be protected and a longitudinal axis (103) transverse to this surface. For the protection of the surface (105), a method is used comprising introducing a primary flow of reactants (103) into the chamber (101) in a manner whirling around the longitudinal axis (103) thereof, withdrawing reaction products at an opposite end (107) of the reaction chamber in a flow along the longitudinal axis (103), and introducing into the chamber a secondary protecting flow (113) directed from a periphery of the surface (105) towards the longitudinal axis (103). The primary flow (109) and the flow of reaction products approximate a free vortex flow and a pressure created by this vortex flow keeps the secondary flow (113) adjacent the surface (105) to be protected, substantially over its entire area.