| 摘要 |
<p>The present invention provides a structure for preventing flame diffusion in an underground electric power ditch. The structure for preventing flame diffusion in the underground electric power ditch includes: an electric power ditch structure (100) which forms a ceiling part (110) and a bottom part (120), and forms an inner space by comprising a wall (130) surrounding the bottom part (120); a blocking wall structure (200) which is installed on the ceiling part (110) as being able to be elevated, and has a smoke detection sensor (210) installed to detect smoke due to a fire occurred in the inner space, and has a through-hole (220) penetrating up and down; a blower fan part (300) which is installed at both side of the blocking wall structure (200), and is driven by an external driving signal; an exhaust part (400) which has an exhaust (410) connecting the inner space and the wall (130), and an opening/closing door (420) opening and closing the exhaust (410); and a smoke exhaust unit (500) which lifts up the blocking wall structure (200) to an established position in order for the blower fan part (300) to be located in the exhaust part (400), and makes the smoke be discharged to the outside forcibly through the through hole (220) and the exhaust part (400) by driving the blower fan part (300) forcibly, if smoke is detected by the smoke detection sensor (210).</p> |
