A method and arrangement for recovering heat including freezing prevention means involving the spreading of non-freezing liquid

摘要

The invention relates to a method and an arrangement for recovering heat, in which heat is recovered from exhaust air by a heat recovery unit (2) on the exhaust side and the recovered heat is transferred to the supply air. To eliminate the problem of freezing and to increase the efficiency of heat recovery, non-freezing liquid is spread on the surfaces of the heat recovery unit (2) on the exhaust side.