VENTILATION SYSTEM FOR IMPROVING THE PURENESS OF THE AIR BY PASSING THE EXTERNAL AIR THROUGH A HEAT EXCHANGER, A PRE-FILTER, AND A HIGH-EFFICIENCY FILTER

摘要

PURPOSE: A ventilation system is provided to keep the optimal humidity of the room with low energy by recovering and reusing the water and heat of the room air discharged into a room by exchanging both heat and water. CONSTITUTION: A ventilation system is composed of an external air suction port formed at one side of a body case to suck in the external air; an external air supply fan for blowing forcibly the air sucked through the external air suction port into the room; an external air delivery port formed at the other side of the external air suction port to be an outlet for ejecting the air sent from the supply fan into the room; a room air suction port disposed on one side of the body case to be an inlet for sucking in the room air; a room air exhaust fan for blowing the air passing through the room air suction port to the outside; a room air discharge port arranged on one side of the body case to be an outlet for discharging the room air to the outside; a heat exchanger(60) for exchanging heat between the external air inserted through the external air suction port and the air input through the room air suction port; a pre-filter(68) installed at the side of the heat exchanger to filtrate foreign matters in the air; and a support frame(61) disposed outside the heat exchanger to hold the heat exchanger. The pre-filter is mounted at the support frame of the heat exchanger.