Heat recovery ventilation and dust collection deodorization air conditioning system for school kitchens and cafeterias and its control method

The present invention relates to a heat recovery ventilation and dust collection deodorization air conditioning system for school kitchens and cafeterias, which is installed for the ventilation of school kitchens and cafeterias, and a control method thereof. The heat recovery ventilation and dust collection deodorization air conditioning system for school kitchens and cafeterias according to an embodiment of the present invention comprises: a heat recovery ventilation device which includes a heat exchange element installed in a school cafeteria for having a school meal and exchanging heat of outside air and inside air; a school cafeteria air purification device which circulates supply air supplied from the heat recovery ventilation device to the school cafeteria and inside air of the school cafeteria to filter the inside air of the school cafeteria by a low-concentration filter module and then supply the inside air to the school cafeteria back; a kitchen air purification device which is connected to the school cafeteria, is installed in a kitchen for cooking the school meal, filters inside air of the kitchen by a high-concentration filter module that processes a greater pollution level than a pollution level processed by the low-concentration filter module, and then discharges the air to the outside; and an integrated air conditioning controller which controls the heat recovery ventilation device, the school cafeteria air purification device, and the kitchen air purification device according to an inside pollution level of the school cafeteria or the kitchen. The integrated air conditioning controller controls the heat recovery ventilation device and the school cafeteria air purification device so that the amount of inside air purified by the school cafeteria air purification device is greater than inside and outside air supplied or discharged by the heat recovery ventilation device when a pollution level of the school cafeteria is greater than a pre-set pollution level. 본 발명은 학교의 주방 및 급식실에 설치의 환기를 위해 설치되는 학교 주방 및 급식실용 열회수 환기 및 집진 탈취 공조시스템, 및 이의 제어방법에 관한 것이다. 본 발명의 실시예에 따른 학교 주방 및 급식실용 열회수 환기 및 집진 탈취 공조시스템은 급식을 취식하는 급식실에 설치되어 외기와 내기를 열교환하는 열교환소자를 포함하는 열회수환기장치, 상기 열회수환기장치에서 상기 급식실로 공급되는 급기와 상기 급식실의 내기를 순환시켜 저농도 필터모듈에 의해 급식실의 내기를 여과한 후 다시 상기 급식실로 공급하는 급식실 공기정화장치, 상기 급식실과 연결되어 급식을 조리하는 주방에 설치되고 상기 저농도 필터모듈에서 처리하는 오염도보다 더 높은 오염도를 처리하는 고농도 필터모듈에 의해 상기 주방의 내기를 여과한 후 옥외로 배출하는 주방 공기정화장치, 상기 급식실 또는 상기 주방의 내기 오염도에 따라 상기 열회수환기장치, 상기 급식실 공기정화장치, 및 상기 주방 공기정화장치를 제어하는 통