DUAL EXTINGUISHMENT FIRE SUPPRESSION SYSTEM USING HIGH VELOCITY LOW PRESSURE EMITTERS

摘要

A FIRE SUPPRESSION SYSTEM (11)IS DISCLOSED. THE SYSTEM INCLUDES A GASEOUS EXTINGUISHING AGENT (21) AND A LIQUID EXTINGUISHING AGENT (17). AT LEAST ONE EMITTER (10) IS IN FLUID COMMUNICATION WITH THE LIQUID AND GAS. THE EMITTER IS USED TO ESTABLISH A GAS STREAM, ATOMIZE AND ENTRAIN THE LIQUID INTO THE GAS STREAM AND DISCHARGE THE RESULTING LIQUID-GAS STREAM ONTO THE FIRE. A METHOD OF OPERATING THE SYSTEM IS ALSO DISCLOSED. THE METHOD INCLUDES ESTABLISHING A GAS STREAM HAVING FIRST AND SECOND SHOCK FRONTS USING THE EMITTER, ATOMIZING AND ENTRAINING THE LIQUID WITH THE GAS AT ONE OF THE TWO SHOCK FRONTS TO FORM A LIQUID-GAS STREAM, AND DISCHARGING THE STREAM ONTO THE FIRE. THE METHOD ALSO INCLUDES CREATING A PLURALITY OF SHOCK DIAMONDS IN THE LIQUID-GAS STREAM DISCHARGED FROM THE EMITTER.