A silent negative pressure circulation oxygen generator

Abstract

The invention relates to the field of oxygen generators, and discloses a silent negative pressure cycle oxygen generator, which includes an end cover and a housing. Two molecular sieve positioning holes penetrating up and down are arranged symmetrically on the left and right sides of the end cover. The inner wall of the lower end is fixed with a positioning flange, the upper end of the housing is provided with an opening, the inside of the housing is provided with a cavity, and the middle part of the housing is symmetrically provided with two air inlet joints penetrating left and right. The lower end is symmetrically provided with two molecular sieve holes penetrating up and down. Using this device has beneficial effects. The special combination of the molecular sieve column and the main piston cylinder is adopted, and the compressed air of the air compressor is replaced by the special piston compression, which greatly reduces the equipment cost and makes the equipment structure simpler. Noise is generated, which avoids bad experience and low-frequency noise damage to users.

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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