Firefighting equipment with agent nozzles and control

摘要

Individual mechanical regulation of the nozzle (D1,D2) pressure is used to regulate the volume and droplet size of the emitted extinguishing agent fluid in the fire space independent of one another, using fire-progress sensors and indicators. The feed connection of the return nozzle connects via feed line (L1) to the agent supply (LV). The return connection (2) from this same nozzle is connected through one or more lines (L2) and incorporated slave valves (V2,V3,V4) to another group of nozzles. The return nozzle return connection is linked by the line to a nozzle in group and/or via line (L3) and incorporated valve (V5) to the agent stock container (VB). The nozzles joined to the return connection should be return nozzles and one of the valves in the lines should be of the continuous analogue-controlled type. Nozzle (D1) return (2) is additionally joined via valve (V3b) to the feed line to allow agent to be fed back into the nozzle. One valve (V3b) works counter to another valve (V3a). The return line (M) joins the feed line upstream of the agent flow ahead of valve (V1) itself used to block off or free agent feed to the return nozzle via the feed line.