Silent negative pressure circulation oxygen generator

Abstract

The invention relates to the field of oxygen generators, and discloses a silent negative pressure circulation oxygen generator, which comprises an end cover and a shell, two vertically through molecular sieve positioning holes are bilaterally symmetrically formed in the end cover, a positioning flange is fixedly arranged on the inner wall of the lower end of the end cover, an opening is formed in the upper end of the shell, and a cavity is formed in the shell. Two air inlet joints penetrating left and right are arranged in the middle of the shell in a bilateral symmetry mode, and two molecular sieve holes penetrating up and down are formed in the lower end of the shell in a bilateral symmetry mode. The device has the beneficial effects that the special combination of a molecular sieve column and a main piston cylinder is adopted, and the compression of a special piston is used for replacing the compression of an air compressor, so that the equipment cost is greatly reduced, the equipment structure is simpler, meanwhile, no noise is generated in the working process, and bad experience and low-frequency noise damage to a user are avoided.

Description

technical field [0001] The invention relates to the field of oxygen generators, in particular to a silent negative pressure circulation oxygen generator. Background technique [0002] Existing small oxygen generators use molecular sieve physical adsorption and desorption technology. Molecular sieves are filled in the oxygen concentrator, which can absorb nitrogen in the air when pressurized, and the remaining unabsorbed oxygen is collected, which becomes high-purity oxygen after purification treatment. Nitrogen is discharged back into the ambient air, and it can absorb nitrogen and produce oxygen during the next pressurization. The whole process is a periodic dynamic cycle process, and molecular sieves are not consumed. The existing molecular sieves are zeolite molecular sieves. The existing household oxygen production The air compressor is used as the pressure source by the air compressor, and the noise has a great impact on the patient, and the air replacement rate is low...

AI Technical Summary

Problems solved by technology

Molecular sieves are filled in the oxygen concentrator, which can absorb nitrogen in the air when pressurized, and the remaining unabsorbed oxygen is collected, which becomes high-purity oxygen after purification treatment. Nitrogen is discharged back into the ambient air, and it can absorb nitrogen and produce oxygen during the next pressurization. The whole process is a periodic dynamic cycle process, and molecular sieves are not consumed. The existing molecular sieves are zeolite molecular sieves. The existing household oxygen production The air compressor is used as the pressure source by the air compressor, and the noise has a great impact on the patient, and the air replacement rate is low in the process of decompression relying on its nitrogen molecules to separate from the molecular sieve, which makes the air circulation effect poor. The oxygen rate is low, which will cause the acceleration of the air compressor to waste energy and increase the noise, and the replacement of the molecular sieve is extremely cumbersome. Therefore, it is necessary to use a negative pressure to accelerate the internal pressure of the molecular sieve while decompressing the molecular sieve. Air exchange improves oxygen production efficiency, and ordinary people can quickly replace molecular sieve devices without tools

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