LOCAL VENTILATOR WITH SWIRLER

摘要

PURPOSE: A swirl type local ventilation device is provided to prevent a warm current generation and an exhaust pressure loss due to a gap between a hood and swirler because the hood and swirler formed into one body rotate together. CONSTITUTION: A swirl type local ventilation device comprises a swirler(110) and driving unit(120). The swirler is installed in an intake end of a vent pipe, thereby generating a swirl. The swirler comprises a hood member(111) of a disc shape and a plurality of blades(112). The blades are arranged along an outer side edge of the hood member, thereby forming the spiral while rotating with the hood member. The driving unit is connected to the swirler, thereby rotating the swirler.