VENTILATING SYSTEM FOR BUILDING

摘要

PURPOSE: A ventilation system for a building is provided to effectively reduce heat loss which indoor air and outdoor air are heat-exchanged twice. CONSTITUTION: A ventilation system for a building comprises an integration duct, an intake duct, an exhaust duct, and a dust collection unit. The integration duct has dual pipe structure made of an inner tube and an outer tube. An exhaust path is formed inside the inner tube and an intake path is formed between an inner tube(54) and an outer tube(56). The wall of the inner tube is used as an insulating wall. The intake duct and the exhaust duct are respectively connected to the intake path and the exhaust path. The dust collection unit removes dusts included in an outdoor air flowing to the intake duct along the intake path. The dust collection unit comprises a dust collecting casing(150), a lid(160), a partition(170), and a spacer member. The lid covers the opening of the dust collecting casing. The partition is formed with an upper dust chamber and a lower dust chamber.