SPARK TYPE EXPLOSION HAZARD SIGNALING DEVICE Russian patent published in 2005 - IPC

FIELD: safety devices, namely detecting explosion hazard of vapor-gas mixtures.

SUBSTANCE: spark - type explosion hazard indicating device includes explosion chamber provided with spark generator and with inlet and outlet fire barriers; unit for metering hydrogen provided with pressure stabilizer, pulsating vessel having working and control cavities and with normally open valve; explosion indicator; ejector and normally closed valve; control unit. Three outlets of control unit are connected with control inlets of spark generator and of normally open and normally closed valves. Device includes in addition evacuation degree stabilizer having nozzle, dead and discharge chambers; explosion detector; laminar and turbulent throttles. Explosion chamber is mounted vertically. Electrodes of spark generator are mounted in center of cross section in zone 0.1 - 0.9 of height of explosion chamber. Adjustment spring is arranged in dead chamber of evacuation stabilizer.

EFFECT: enhanced accuracy and operational reliability of device.

2 dwg