HEAT EXCHANGER

摘要

A heat exchanger (1) has exchanger tubes (2, 3, 4) which are arranged adjacent to one another in a plurality of rows (R, R1, R2) which are situated one on top of the other, which exchanger tubes (2, 3, 4) are acted on at the inside with a product (P) to be cooled and are subjected to a flow of cooling air (KL) from below. At least the exchanger tubes (2) of the lowermost row (R) are provided with inner tubes (10) which can be acted on with a heating medium (HM).