Respiratory gas conversion system for submersible decompression chamber

Abstract

The invention discloses a respiratory gas conversion system for a submersible decompression chamber. The system comprises an air storage cylinder, an oxygen storage cylinder, an air supply angle seatvalve, an oxygen supply angle seat valve, a conversion controller, a three-way connector, an oxygen inhaler, an air supply pipeline, an oxygen supply pipeline, a breathing pipeline and a programmablelogic controller. By the conversion controller for automatic switching between air supply and oxygen supply, a diver can breathe fresh air constantly in the chamber, and expired gas can be dischargedout of the chamber, and accordingly physical health of the driver is guaranteed against influences of pollutants in the chamber.

Description

technical field [0001] The invention relates to the field of diving decompression chambers, in particular to a breathing gas conversion system for diving decompression chambers. Background technique [0002] Divers will produce volatile substances in the body in a confined space. According to monitoring: the human body volatilizes more than 300 types of polluting substances through the respiratory tract and body surface. These substances will constitute an environment that is harmful to the human body in a closed decompression chamber. Among them, the carbon dioxide concentration in the cabin environment is too high to cause poisoning, and the oxygen concentration in the cabin environment is too high to cause fire accidents or fire hazards. Therefore, in the past, compressed air was often used to ventilate the cabin. Due to the particularity of ventilation, the ventilation process needs to consume a large amount of compressed air. Therefore, whether it is the treatment of de...

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Problems solved by technology

[0002] Divers will produce volatile substances in the body in a confined space. According to monitoring: the human body volatilizes more than 300 types of polluting substances through the respiratory tract and body surface. These substances will constitute an environment that is harmful to the human body in a closed decompression chamber. Among them, the carbon dioxide concentration in the cabin environment is too high to cause poisoning, and the oxygen concentration in the cabin environment is too high to cause fire accidents or fire hazards. Therefore, in the past, compressed air was often used to ventilate the cabin. Due to the particularity of ventilation, the ventilation process needs to consume a large amount of compressed air. Therefore, whether it is the treatment of decompression sickness or the decompression process of diving, it is necessary to reserve a large amount of compressed air. Therefore, there are many problems such as high operating cost, large site occupation area and complicated operation process, and sometimes even affect the treatment of diving decompression sickness or the effect of diving decompression due to some of the above problems

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