Medical oxygen production device with coarse and fine double molecular sieves

Abstract

The invention discloses a medical oxygen production device with coarse and fine double molecular sieves. The device comprises a group of oxygen production mechanisms, an oxygen storage tank and a reverse purging device. The oxygen generation mechanisms are communicated with an air supply device on the left side for providing compressed air through an air supply pipe; a first control valve and a first emptying valve are sequentially arranged on the air supply pipe from left to right; the oxygen generation mechanisms are communicated with the oxygen storage tank through an oxygen pipe, a secondcontrol valve is arranged on the oxygen pipe, an oxygen conveying pipeline is arranged on the oxygen storage tank, and the right ends of the oxygen generation mechanisms are communicated with the reverse purging device through a purging pipeline. According to the invention, a fine screening process is added, so that the oxygen production concentration is higher, all medical oxygen preparation requirements in China are met, the oxygen purity value specified in Chinese Pharmacopoeia is reached; and a first-stage carbon molecular sieve is added based on the existing single-stage zeolite molecularsieve process, and the process route is prolonged, so that the device presents a coarse screening and fine screening special-shaped double-screen process.

Description

technical field [0001] The invention relates to the field of oxygen generators, in particular to a medical oxygen generator with coarse and fine double molecular sieves. Background technique [0002] The medical oxygen generator uses zeolite molecular sieve as the adsorbent, and uses the pressure swing adsorption method (PSA method for short) to produce medical oxygen. (accounting for about 78%) to separate the enriched oxygen with a concentration of 90%-93% for medical use. Because of its fast oxygen production, safety, economy and convenient use, it eliminates the troubles of frequent bottle replacement and regular filling of liquid oxygen It is accepted by various large and medium-sized hospitals. However, due to differences in the understanding of whether the oxygen production concentration meets medical oxygen and national standards in various regions (the Chinese Pharmacopoeia stipulates that the oxygen concentration is greater than 99.5%), the promotion and applicati...

AI Technical Summary

Problems solved by technology

However, due to differences in the understanding of whether the oxygen production concentration meets medical oxygen and national standards in various regions (the Chinese Pharmacopoeia stipulates that the oxygen concentration is greater than 99.5%), the promotion and application are slow

Images