| 主权项 |
1. A method for automatically extinguishing fires which is compliant with ANSI/UL 1254 1999 for both Total Flooding and local applications in large volume spaces (“UL 1254”), comprising:
providing an enclosure comprising a large volume space of at least about 512 ft3 including a ceiling having an elevated height; providing a closed, self-contained fire extinguishing system which is compliant with UL 1254 for both total flooding and local applications (spot protection) including a container, a mixed phase agent stored within the confines of said container and an upwardly-facing, concave-shaped member attached to said container and extending outwardly from the fire extinguisher system for directing a flow trajectory of the mixed phase agent from within the container in an upward and outward lateral direction for extinguishing said fires, said UL 1254 defining (a) “total flooding” as totally flooding of the entire large volume space of the enclosure so that a fire located anywhere there within is extinguished, and (b) “local applications” (spot protection) as extinguishing a fire located below the fire extinguishing system, said mixed phase agent including (a) a fire extinguishant liquified gas which is EPA compliant, (b) a fire extinguishing powder material, (c) a polymeric gelling agent that interacts with fire extinguishing substances (a) and (b) to form a stable, gel-like suspension thereof under pressure, and (d) a viscosity reducing agent comprising microscopic glass spheres and a pressurized inert gas to facilitate the optimum discharge of fire extinguishing substances (a) and (b) from the fire extinguisher system which facilitates the flow of the mixed phase agent from the extinguisher so that substantially all of the fire extinguishing substances (a) and (b) is discharged from within the fire extinguisher system to extinguish a fire in an automatic mode in compliance with UL 1254; securely attaching said fire extinguishing system to the ceiling at said elevated height in said enclosure in an inverted, fixed position; automatically discharging substantially all of said mixed phase agent from the fire extinguishing system and forming a dry chemical fire extinguishing agent including the fire extinguishing substances (a) and (b) in said enclosure in response to heat generated by a fire anywhere within said large volume space; and directing the dry chemical fire extinguishing agent in an upward and lateral trajectory in a predetermined path by said concave-shaped member so that a fire located anywhere within said large volume space will be contacted by both a fire extinguishant gas and the fire extinguishing powder material of the fire extinguishing agent and will be extinguished, employing either one of (a) total flooding and (b) both total flooding and local applications in compliance with UL 1254, and wherein said container will remain intact after said fire is extinguished. |
