HIGH-RATE ABSORPTION DEVICE Russian patent published in 2004 - IPC

FIELD: sampling of air atmosphere.

SUBSTANCE: invention can be used to take samples of air to conduct subsequent chemical or other quantitative analysis of required and contaminating substance in sample. High-rate absorption device has cyclone of drop- and spray trap with outlet tube carrying two adiabatic expanders, generator of aerosol flame in the form of Venturi tube with sprinkler nozzle. Sprinkler nozzle is installed under second adiabatic expander of cyclone of drop- and spray trap. Device includes feeding circulation tube connecting generator of aerosol flame-sprinkler nozzle to bottom of cyclone of drop- and spray trap. Sprinkler nozzle is mounted in last third of neck of Venturi tube in path of movement of gas and fluid phase through Venturi tube. Venturi tube has angle of spray cone of diffuser equal to 10-20 degrees. Sprinkler nozzle has oblique cut of working butt at angle α = 25-70^o.

Device demonstrates potential for proximity analysis of ecological condition of atmosphere thanks to air sampling with flow rate not less than 100 cu dm/min, which enables air samples to be concentrated for very short time period.

EFFECT: potential for proximity analysis of ecological condition of atmosphere.

3 cl, 1 dwg