Positive pressure spring and fan double-pressurized long-acting positive pressure chemical oxygen operation respirator

Abstract

The invention discloses a positive pressure spring and fan double-pressurized long-acting positive pressure chemical oxygen operation respirator. The positive pressure spring and fan double-pressurized long-acting positive pressure chemical oxygen operation respirator comprises a full-isolation mask, wherein a through hole is formed in the middle of the full-isolation mask; an expiration pipe and an air suction pipe are installed in the through hole in an inserted connection manner, and the other end of the expiration pipe is connected with an air inlet air bag; the air inlet air bag is connected with an oxygen generation tank; and a one-way valve is arranged at the joint of the air inlet air bag and the oxygen generation tank. Gas in an air outlet air bag is continuously conveyed into the full-isolation mask through rapid oxygen generation of an oxygen candle in the early stage, and continuous oxygen generation of the oxygen generation agent in the later stage and the coordination effect of the positive pressure spring and the fan, so that the negative pressure problem in the mask of the chemical oxygen operation respirator is effectively solved; it is ensured that the gas is sufficiently supplied to a wearer within the operation time, and the positive pressure is always maintained in the mask, so that the phenomenon that the rescue workers inhale oxygen insufficiently in the early stage is effectively avoided; and toxic and harmful gases, dust and other substances in the external environment can be prevented from entering the mask, so that the life safety of the rescue workers is greatly guaranteed.

Description

technical field [0001] The invention relates to the technical field of safety rescue, in particular to a long-acting positive pressure chemical oxygen respirator with positive pressure springs and fans. Background technique [0002] Positive pressure spring and fan dual pressurized long-term positive pressure chemical oxygen respirator is a rescue equipment that uses chemical oxygen agents to absorb carbon dioxide and moisture exhaled by the wearer to generate oxygen for human breathing, instead of using traditional high pressure Oxygen cylinders supply oxygen, avoiding the hidden dangers caused by high-pressure cylinders, and can be used by emergency rescue personnel in dangerous environments such as fire scenes, toxic and harmful gas leakage, and hypoxia. However, in the chemical oxygen respirator currently on the market, during the inhalation process, especially in the early stage, there will be negative pressure in the full isolation mask, which will lead to insufficient...

AI Technical Summary

Problems solved by technology

However, in the chemical oxygen respirator currently on the market, during the inhalation process, especially in the early stage, there will be negative pressure in the full isolation mask, which will lead to insufficient oxygen inhalation for rescuers in the early stage, and toxic and harmful gases and dust in the external environment Other substances may also enter the mask, which will bring hidden dangers to the life safety of rescuers.

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