BLENDING RESPIRATORY GAS MIXTURES
Mircea degeratu[1], Sergiu
Ioniță[2]
Rezumat. Amestecurile gazoase binare sau ternare utilizate în
scufundare se pot fabrica fie printr-o injecţie succesivă şi
controlată a gazelor componente în recipiente cu volum constant,
urmărindu-se presiunea din recipienţi, fie printr-o amestecare în
flux continuu, cu injectarea simultană a gazelor componente la
proporţia dorită, utilizându-se pentru aceasta dispozitive
prevăzute cu ajutaje calibrate lucrând în domeniul critic (sonic), ce
asigură livrarea componentelor gazoase la debite masice constante.
Abstract. The binary or ternary gas mixtures used in diving can be blended either
by a successive and controlled injection of the component gases into containers
of constant volume, following the pressure in the containers, or by a
continuous flow mixing, with the simultaneous injection of the component gases
to the desired proportion, using for this devices equipped with calibrated
nozzles working in the critical (sonic) range, which ensure the delivery of
gaseous components at constant mass flow rates.
Keywords:
diving, gases, respiratory mixtures
DOI 10.56082/annalsarscieng.2024.2.5
[1] Prof., PhD, Eng., Dept. of Hydraulics and Environmental Protection, Technical University of Civil Engineering Bucharest, Academy of Romanian Scientists (mircea.degeratu@yahoo.com)
[2] Professional diver, certified in the U.S.A. at Commercial Diving Institute of New York, was employeed by some prestigious submarine intervention companies specialized in underwater interventions at offshore oil installations in the Gulf of Mexico. (sergiu.ionita@rdslink.ro).