Oxygen absorption and discharge apparatus of submersible decompression chamber

Abstract

The invention discloses an oxygen absorption and discharge apparatus of a submersible decompression chamber. The apparatus can automatically control oxygen supply amount and oxygen discharge amount according to the respiratory rhythm of a patient by using an automatic oxygen absorption device and an automatic oxygen discharge device. The whole apparatus requires no electric appliance elements, andan oxygen supply process and an oxygen discharge process are controlled automatically; an oxygen inhalation treatment process does not involve application of compressed air for controlling the oxygenconcentration in the chamber so that the oxygen concentration in the chamber can be kept at the level of 21% all the time. Breathing resistance can be eliminated, and a diver does not feel tired in the oxygen inhalation process. The oxygen inhalation process can be synchronously observed in the chamber or outside the chamber so that more than ten times of compressed air can be saved. The servicelife of an air compressor and air supply purification equipment is greatly prolonged, the operation cost of the equipment is greatly reduced, and the noise environment generated by ventilation can beavoided.

Description

technical field [0001] The invention relates to the field of diving decompression chambers, in particular to an oxygen suction and exhaust device for diving decompression chambers. Background technique [0002] Divers need to inhale oxygen during decompression in the decompression chamber or receiving diving disease treatment. The main oxygen inhalation device is the second-level decompressor to inhale oxygen, and the oxygen inhalation equipment has no oxygen exhaust function. Some decompression chambers are provided with a buffer type oxygen exhaust device for this purpose, but the buffer type oxygen exhaust device can only discharge a part of the diver's exhaled gas, and about 50%-60% of the exhaled gas still disperses in the cabin. [0003] The second-stage pressure reducer has relatively large breathing resistance, and the test data shows that the suction resistance of the second-stage pressure reducer is around -400Pa. The inspiratory resistance is greater than -120Pa,...

AI Technical Summary

Problems solved by technology

Ventilation to control the oxygen concentration in the cabin will bring the following application problems: 1. The operating load of the air supply purification equipment will increase, so the frequency of maintenance will be increased

2. The cost of equipment use increases, especially the cost of electric energy and equipment maintenance and maintenance will increase accordingly

3. Produce continuous noise, which will affect the rest of divers or affect the treatment effect of decompression sickness

4. The ambient temperature and humidity in the cabin fluctuate

5. The power of the required equipment increases, therefore, the area required for equipment assembly increases, especially the space of the decompression chamber of the ship is limited, and increasing the area of ​​the equipment site will affect the overall structure of the ship

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