Heat exchanger for use in e.g. central heating system, has a heat transfer tube portion including two heat exchanger tubes which are arranged concentrically and between which an annular space for guiding heat-absorbing medium is formed

摘要

The heat exchanger (10) comprises a heat transfer tube portion (12) including two heat exchanger tubes (14,16) which are arranged concentrically and between which an annular space (18) for guiding the heat-absorbing medium is formed. The inlet (20) and the outlet (22) communicate with the space, so that the space and the outlet form a closed pipe system. Several baffles (28) are arranged in the space. The inlet and the outlet are arranged in the heat transfer tube portion in traverse form.