| 摘要 |
<p>The present invention relates to a ventilation system capable of improving ventilation efficiency and enhancing working environments by discharging internal air to the outside while collecting the internal air in the upper part of a factory, such as a hull assembly factory and like, where a large amount of welding gas occurs to induce a constant rising current. According to the present invention, the ventilation system to discharge the internal air of a factory to the outside comprises: a ventilator (10) installed while connecting the inside of a ceiling (2) of the factory with the outside of a roof; a ceiling-side blowing fan (20) hung on the ceiling (2) to blow out the internal air to an outlet of the ventilator (10); and a plurality of blowing fans (41, 42, 43, ...) to form a rising current arranged at a predetermined interval from the upper part of the factory to the ceiling-side blowing fan (20) along a spiral cone-shaped rising current path (FL) to transfer the air to the ceiling-side blowing fan (20) by inducing the rising air current flowing along the spiral cone-shaped rising current path (FL). The present invention can continuously discharge the internal air of the factory by sucking and collecting the internal air of the spiral cone-shaped rising current path (FL) formed by the plurality of blowing fans to form a rising current; thereby effectively and continuously discharging the harmful air from the factory.</p> |
