APPARATUS FOR HEAT RECOVERY IN A HEAT EXCHANGER SYSTEM HAVING ENERGY COUPLING IN VENTILATION DEVICES

摘要

A circulation system, comprising a unit for energy coupling, has two heat exchangers (LWT ZU1, LWT ZU2) in an air inlet volume flow (ZU) and one heat exchanger (LWT AB1) in an air outlet volume flow (AB) in an air treatment system. In order to improve the energy yield, units for forming two heat carrier circuits (WK1, WK2) are provided, which can be variably interconnected for the heat exchangers (LWT ZU1, LWT ZU2, LWT AB1). In one case, all heat exchangers (LWT ZU1, LWT ZU2, LWT AB1) are connected as a circulation system (KVS). As an alternative, only one air inflow heat exchanger (LWT ZU1) and one air outflow heat exchanger (LWT AB1) are connected to the heat exchanger circuit (WK1), and a further air inflow heat exchanger (LWT ZU2) in the air inflow volume flow (ZU) is operated in a separate heat exchanger circuit (WK2).