method and heat exchanger for progressive chilling of a warm gasstroem

摘要

The casing 2 constructed e.g. as a reactor has an inner area 3, which is bounded by an inner jacket 6 which, whilst forming an intermediate area 7, is surrounded by an outer jacket, on which is arranged a heat exchanger for cooling fluid (eg water) with an inlet connection 12 and an outlet connection 13. The mixture e.g. of air and oil entering through mixing chambers 20 is ignited and an exothermic reaction takes place. The heat liberated during the reaction must be removed in controlled manner in order to ensure at outlet A a temperature which is within a relatively narrow temperature range. This is achieved by the series connection of two radiation processes, i.e. from reaction gas to the inner jacket 6 and from there to the outer wall 4. The temperature peaks occurring with different mixing ratios having only a limited influence on the temperature profile towards the reactor outlet and there is no need for external action, e.g. via a cooling system control. IMAGE