White smoke removal apparatus having enhanced condensation efficiency and white smoke reduction rate, and white smoke removal method using same

A white smoke removal apparatus having enhanced condensation efficiency and white smoke reduction rate, comprising:

• a heat exchanger having an exhaust air inlet into which exhaust air is introduced, a first outside air inlet into which outside air is introduced, the exhaust air inlet and the first outside air inlet being spaced apart from each other on the outside thereof, a waste heat outlet from which waste heat is exhausted, an outside air outlet from which heat-exchanged outside air is exhausted, and a moving path for moving heat-exchanged exhaust air;
• a condensation filter having a space portion formed therein and consisting of a connection portion connected to the moving path, a filter for removing fine dust contained in the heat-exchanged exhaust air, and two or more demisters for removing white smoke particles and producing condensate water, the connection portion, the filter, and the demisters being arranged sequentially, and second outside air inlets formed on one side of the lower portion thereof to introduce the outside air;
• and a mixer located spaced apart from the condensation filter to introduce the heat-exchanged outside air from the heat exchanger and white smoke-removed exhaust air from the condensation filter, mix the heat-exchanged outside air and the white smoke-removed exhaust air, and emit the mixed air in a state where the mixed air is raised in temperature and lowered in humidity, wherein the two or more demisters are located behind the filter, while having a space portion g with a width of 0.5 cm between facing surfaces thereof, the second outside air inlets are connected directly to the undersides of the demisters to allow the outside air to be introduced directly into the demisters, and the condensation filter further comprises an eliminator located spaced apart from the demisters by a given distance to remove water contained in the white smoke-removed exhaust air emitted from the demisters once again.