VENTILATION EQUIPMENT WITH HEAT TRANSFER PASSAGES OF NON-STRAIGHT LINE

摘要

A ventilation apparatus with winding heat transfer passages is provided to improve the heat exchange efficiency by improving the structure of a heat transfer filter interposed between air exhausted from a room and air introduced from the outside. A case has an internal air intake port and an external air supply port at an indoor side and an internal air exhaust port and an external air intake port at an outdoor side. An air supply blower is installed in the case for sending external air to the external air supply port. An exhaust blower is installed in the case for sending internal air to the internal air exhaust port. A heat exchanger is installed in the center of the case to transmit heat while passing internal air and external air through passages in different directions formed by a plurality of accumulated heat transfer filters. HEPA(High Efficiency Particulate Arrestor) filters are installed at both sides of the heat exchanger for filtering pollutants from introduced external air. A plurality of heat transfer filters has passages(33) which are regularly bent and are formed by bonding a base surface(31) with an uneven surface(32), wherein the passages are adjacent to each other on a plane. The heat transfer filters are consecutively accumulated in the heat exchanger.