Molecular sieve oxygen generation machinegenerator, and control system and method thereof

Abstract

The invention discloses a molecular sieve oxygen generation machinegenerator, and a control system and method thereof. The control system of the molecular sieve oxygen generation machinegenerator comprises a two-position four-way electromagnetic valve, a pressure sensor, a flow rate meter and a control circuit, wherein the two-position four-way electromagnetic valve is used for controlling the pressurization adsorption time and pressure reduction desorption time of a molecular sieve adsorption tower according to the control instruction of the control circuit; the pressure sensor is used for measuring the real-time gas pressure value in the gas conveying pipeline inside the molecular sieve oxygen generation machinegenerator; the flow rate meter is used for measuring the real-time gas flow rate value of the oxygen outlet end of the molecular sieve oxygen generation machinegenerator; the control circuit is respectively separately connected with the two-position four-way electromagnetic valve, the pressure sensor and the flow rate meter through signals, and is used for outputting a control instructioncontrolling the opening and closing time of the two-position four-way electromagneticvalve according to the real-time gas flow rate valve and the real-time gas pressure value for controlling the opening and closing time of the two-position four-way electromagnetic valve; the pressurization adsorption time and the pressure reduction desorption time of the molecular sieve adsorption tower are controlled by controlling the opening and closing time of the two-position four-way electromagnetic valve.

Description

technical field [0001] The invention relates to the technical field of gas separation, in particular to a molecular sieve oxygen generator and its control system and method. Background technique [0002] Molecular sieve oxygen generator is an oxygen generator that uses the principle of pressure swing adsorption to separate oxygen from the air. The molecular sieve oxygen generator uses a compressor to compress the air. After the air is compressed, it enters the adsorption tower equipped with molecular sieve through the ventilation valve. Oxygen is produced periodically through adsorption and desorption cycles. In recent years, molecular sieve oxygen concentrators have greatly improved in terms of size reduction, weight reduction, and noise reduction. Miniaturized molecular sieve oxygen concentrators have been better used in home oxygen therapy and have become a comprehensive prevention and treatment of chronic respiratory diseases. One of the most simple and easy methods, it...

AI Technical Summary

Problems solved by technology

In the home use environment, elderly patients are prone to kinking of the oxygen inhalation tube (nasal suction tube) due to human negligence when using it, resulting in blockage of the oxygen delivery circuit. In this dangerous situation, it is very easy to loosen or burst the internal pipeline of the oxygen concentrator, causing equipment failure, so that the patient cannot use the oxygen concentrator normally and delays the treatment.

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