A heat exchanger for quantifying the reaction gas

摘要

A heat exchanger for quenching the reaction gas comprises: a coolable double-wall tube comprising an inner tube wall and an outer tube wall, the inner tube wall being configured to carry the reaction gas to be quenched, And a space defined by the outer tube wall is configured to carry a coolant; And a tubular connecting member having a bifurcated longitudinal cross-section including an inner wall section and an outer wall section defining an intermediate space filled with refractory filler material, wherein the converging end of the connecting member is a non- Said outer wall section being connected to said outer tube wall of said coolable double-walled tube and between said inner wall section and said inner tube wall of said coolable double-walled tube An axial gap is left.