Smoke apron for closing smoke guiding channel in e.g. side wall of assembly and production hall in case of fire, has lattice made of fabric, where apron opens side wall for passing of gas flow when apron reaches specific temperature

摘要

The apron has a filling melted when the apron reaches aperture temperature of about 500 degree Celsius, where the apron opens a side wall for automatic passing of gas flow when the apron reaches the aperture temperature. A lattice covers the side wall and loses its locking effect when the apron reaches limit temperature of 650 degree Celsius. The lattice is made of textile fabric. A defined portion of the filling loses its holding function when the apron reaches the aperture temperature such that a flap in the filling opens under dead weight, or the apron falls over a ceiling.