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

Abstract

The present invention relates to a white smoke removal apparatus having enhanced condensation efficiency and white smoke reduction rate, and a white smoke removal method using the apparatus. More specifically, while heat-exchanged exhaust air passes through a condensation filter, outside air is introduced directly to demisters to form solid contact surfaces on which the heat-exchanged exhaust air collides with the outside air, and thus a larger amount of condensate water can be formed compared to when condensate water is formed by collision in the air. Also, the outside air is introduced directly to the demisters when introduced to the condensation filter, and thus the condensation filter can be made compact. Furthermore, an eliminator is provided in the condensation filter to remove moisture one more time before the air moves to a mixer, and thus white smoke reduction can be maximized.

1 . 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. 
     
     
         2 . The white smoke removal apparatus according to  claim 1 , wherein the heat exchanger further comprises a cooling fan located on one side of the outside thereof or close thereto in such a way as to be connected to the first outside air inlet and the second outside air inlets to suck and cool the outside air, and the condensation filter further comprises an exhaust fan located on one side of the outside thereof or close thereto in such a way as to emit the white smoke-removed exhaust air, while sucking the heat-exchanged exhaust air to allow the white smoke particles contained in the heat-exchanged exhaust air to collide against one another. 
     
     
         3 . The white smoke removal apparatus according to  claim 1 , wherein the condensation filter further comprises a rotating member disposed between the demisters and the eliminator to allow the white smoke-removed exhaust air and the outside air to collide against each other, and a shaft of the rotating member is located vertically between the demisters and the eliminator of the condensation filter so that the rotating member rotates around the shaft, the rotating member having a spiral rotating blade integral or separably coupled with the outer peripheral surface thereof. 
     
     
         4 . A white smoke removal method using the white smoke removal apparatus according to  claim 1 , comprising: the introduction step of introducing the exhaust air and the outside air; the heat exchange step of performing heat exchange between the exhaust air and the outside air in the heat exchanger; the moving step of moving the heat-exchanged outside air to the mixer and moving the heat-exchanged exhaust air to the condensation filter; the first white smoke removal step where after the heat-exchanged exhaust air moves to the condensation filter, the heat-exchanged exhaust air cooledly mixes with the outside air through the filter, the demisters, the rotating member, and the eliminator to allow the white smoke particles contained therein to collide against one another to remove the white smoke particles and produce the condensate water, and the white smoke-removed exhaust air moves to the mixer; and the second white smoke removal step of mixing the heat-exchanged outside air through the moving step and the white smoke-Page removed exhaust air through the first white smoke removal step and emitting mixed air in a state where the mixed air is raised in temperature and lowered in humidity. 
     
     
         5 . The white smoke removal method according to  claim 4 , wherein in the introduction step and the first white smoke removal step, the cooling fan and the exhaust fan operate, respectively or solely, to introduce and emit the exhaust air and the outside air, cool the heat-exchanged exhaust air, and remove the fine dust and white smoke particles from the heat-exchanged exhaust air.