Improvements to heat exchangers

(57) A summary and subject Advanced heat exchanger solution means A heat exchanger assembly is equipped with the rod (14) which penetrates the cylinder type casing (1) and each pipe (8) which store a product conduit pipe (8), and is prolonged. The rod (14) can carry out both-way movement along with a pipe (8), and it has extra jacket り手段 (15) projected from the rod, When a rod (14) moves the inside of a pipe (8) reciprocately, and extra jacket り手段 (15) fails to scratch a product residue from the inner wall of product conduit (8), the working heat transfer efficiency of a heat exchanger assembly is raised.