What is compressed oxygen self-rescuer, what are the characteristics

Compressed oxygen self-rescuer, also called isolated compressed oxygen self-rescuer, is a reusable self-rescue escape device that uses high-pressure compressed oxygen as the oxygen source. It mainly produces poisonous and harmful gas outbursts and anoxic asphyxiation in the working environment of coal mines or ordinary atmospheric pressure. Use at disaster.

Compressed oxygen self-rescuer is a kind of human body's internal respiratory system isolated from the outside world, for the use of people in distress to quickly rescue themselves. With light weight, small size, comfortable breathing and easy to carry and so on. According to the protection time, there are several specifications of 15, 30, 45min.

The working principle of the compressed oxygen self-rescuer is quantitative oxygen supply: counter-clockwise rotation of the switch handwheel, high-pressure oxygen flows from the oxygen bottle to the pressure reducer, and after decompression, 1.2 L/min of oxygen is automatically output to enter the air bag.

Manual supplemental air supply: Use your finger to pressurize the air pressure plate. Oxygen enters the air bag at 60 L/min. The finger leaves the air compensator plate to stop oxygen supply.

Automatic qi supply and oxygen supply: When the respiratory system is under negative pressure, the compensator plate will contract inwards, pressurize the replenishment lever to open the oxygen supply mechanism, and oxygen will enter the airbag at 60L/min. When the airbag swells quickly, the compensator plate will leave qi. Rod, qi stop.

When inhaling, oxygen enters the body through airbags, breathing valves, and oral appliances. When exhalation, the gas passes through the breathing valve and the expiratory hose enters the compressed oxygen self-rescuer cleaning can. The CO2 exhaled by the human body is absorbed by the absorbent contained in the cleaning can, and the remaining oxygen enters the airbag and the oxygen output from the pressure reducer is mixed. This repeats the person's breathing cycle.

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