Rotary separating valve and method for prolonging service life of oxygen generator

Abstract

The invention discloses a rotary separating valve. The rotary separating valve comprises an upper casing, wherein a separating static sheet is arranged in the upper casing, a nitrogen exhausting opening is formed in the center of the separating static sheet, a rotating movable sheet is arranged on the separating static sheet, and a nitrogen exhausting passage is formed in the rotating movable sheet; one end of the nitrogen exhausting passage communicates with a molecular tower, and the other end of the nitrogen exhausting passage communicates with the nitrogen exhausting opening; an only-out-no-in one-way valve is arranged at the nitrogen exhausting opening. The invention discloses a method for prolonging the service life of an oxygen generator. The rotary separating valve is mounted in the oxygen generator, when a machine does not work, the one-way valve has a sealing effect, so that greasy dirt and humid air in the outside cannot enter a nitrogen storing cavity and the molecular tower through the nitrogen exhausting opening to be in contact with a molecular sieve, the service life of the molecular sieve is prolonged, and further the service life of the oxygen generator is prolonged; when the machine works, the one-way valve is opened, the nitrogen exhausting function of the machine is met, and sealing and nitrogen exhausting functions can be realized at the same time. The rotary separating valve and the method for prolonging the service life of the oxygen generator disclosed by the invention have the advantages that the rotary separating valve is simple in structure and ingenious in conception, and the service life of the oxygen generator is effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of oxygen generators, in particular to a rotary separation valve and a method for improving the service life of an oxygen generator. Background technique [0002] With the support and promotion of the national "big medical" policy, domestic medical equipment has ushered in the spring of development, and oxygen concentrators have gradually become one of the commonly used household appliances. In the PSA adsorption separation method oxygen system, molecular sieve is one of the core components that directly affects the service life of the machine. Molecular sieves have high requirements on the air quality of the operating environment. Dust, oil, and humidity will greatly shorten their lifespan. In this environment where air pollution is becoming more and more serious and urban smog is prominent, the lifespan of molecular sieves will inevitably be greatly reduced. [0003] At present, the nitrogen exhaust port ...

AI Technical Summary

Problems solved by technology

Molecular sieves have high requirements on the air quality of the operating environment. Dust, oil, and humidity will greatly shorten their lifespan. In this environment where air pollution is becoming more and more serious and urban smog problems are prominent, the lifespan of molecular sieves will inevitably be greatly reduced.

[0003] At present, the nitrogen exhaust port of the traditional rotary separation valve of the oxygen generator is open. During the daily storage of the machine, external oil, humid air, etc. can contact the molecular sieve in the molecular tower through the nitrogen exhaust port of the separation valve, thereby Lead to accelerated decay of molecular sieve life, which in turn affects the life of the entire oxygen generator

Images