Method and device for local ventilation by buiding airflow and separating airflow

摘要

To present technology of discharge and local ventilation capable of decreasing ventilation capacity and air conditioning capacity substantially by lowering the air conditioning load by introduction of fresh air by intake, and decreasing the capacity of air conditioning and ventilation facilities by eliminating consumption of electrical energy. ;This a method of discharging polluted air near combustion heating type cooking device (1) in a room having combustion heating type cooking device (1) to cause polluted air, comprising the steps of generating upward suction discharge stream (6) from upward position of the combustion heating type cooking device (1) to outdoor air, generating upward blow induction stream (21) from the position near the side of the combustion heating type cooking device (1) to the suction discharge stream (6), and by inductive action of this blow induction stream (21), taking up the polluted area near the surrounding of the combustion heating type cooking device (1) and forcibly collecting and delivering into the suction discharge stream (6).