A chemical oxygen generator is a device that releases oxygen created by a chemical reaction. The oxygen source is usually an inorganic superoxide, chlorate or perchlorate. A promising group of oxygen sources are ozonides. The generators are usually ignited mechanically, by a firing pin, and the chemical reaction is usually exothermic, making the generator a potential fire hazard. Potassium superoxide was used as an oxygen source on early manned USSR space missions, for firefighters and mine rescue.
What Is The Oxygen Generator Used For?
The chemical oxygen generator is used in aircraft, breathing apparatus for firefighters and mine rescue crews, submarines, and everywhere a compact emergency oxygen generator with long shelf life is needed. They usually contain a device for absorption of carbon dioxide, often a filter filled with lithium hydroxide; a kilogram of LiOH absorbs about half a kilogram of CO2.
The Chemical Oxygen Generator In Space
Self-contained self-rescue devices (SCSRs) are used to facilitate escape from mines. On the International Space Station, the chemical oxygen generator is located aboard the Elektron module. Each canister can produce enough oxygen for one crewmember for one day. In addition, the oxygen generator produces air for large industrial oxygen generating systems, scuba oxygen tanks and bottles, home oxygen generator equipment, hospital oxygen supply systems, aquaculture oxygen systems, portable oxygen generators, emergency oxygen systems, ozone generators, PSA (pressure swing adsorption) oxygen generators and more.
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