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DAMPER STRUCTURE FOR AN EXHAUST PIPE CONNECTED TO A VERTICAL VENTILATION DUCT CAPABLE OF CUTTING OFF EXHAUST GAS FLOWING BACKWARD THROUGH A VENTILATION DUCT
DAMPER STRUCTURE FOR AN EXHAUST PIPE CONNECTED TO A VERTICAL VENTILATION DUCT CAPABLE OF CUTTING OFF EXHAUST GAS FLOWING BACKWARD THROUGH A VENTILATION DUCT
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机译：连接到垂直通风管道的排气管的阻尼器结构，可切断从通风管道向后流动的废气
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摘要
PURPOSE: A damper structure for an exhaust pipe connected to a vertical ventilation duct is provided to prevent exhaust gas from flowing backward to a damper when the damper is opened and to efficiently ventilate an indoor space.;CONSTITUTION: A damper structure for an exhaust pipe connected to a vertical ventilation duct comprises a damper housing(10) and damper plates(LD,FD). The damper housing is connected to a ventilation duct and has an internal air passage. The damper plates are rotatably installed through a rotary shaft(H) located under the inner center shaft of the damper housing and open and close a part of the air passage through rotation. The damper plate located at the bottom restricts the rotation angle of the damper plates.;COPYRIGHT KIPO 2012
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