Oxygen production device of medical-grade high-temperature molecular sieve membrane adsorption tower and use method of oxygen production device

An oxygen generator and molecular sieve technology, applied in the field of oxygen generators, can solve the problems of poor oxygen production efficiency, low purity, and poor recycling rate of molecular sieves, and achieve improved sterility rate, high oxygen ion conductivity, and high affinity Effect

Active Publication Date: 2021-06-25
HUNAN VENTMED MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the molecular sieves used in the prior art are zeolite molecular sieves, whose adsorption is based on the principle of physical adsorption, and their recyclability is poor, and before the oxygen production and separation of oxygen and nitrogen, the air needs to be cold-treated, and the separation of oxygen and nitrogen is carried out at room temperature , for nitrogen adsorption and desorption
This makes the oxygen production efficiency poor, the purity is not high, and the molecular sieve recycling rate is poor and other defects

Method used

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  • Oxygen production device of medical-grade high-temperature molecular sieve membrane adsorption tower and use method of oxygen production device
  • Oxygen production device of medical-grade high-temperature molecular sieve membrane adsorption tower and use method of oxygen production device
  • Oxygen production device of medical-grade high-temperature molecular sieve membrane adsorption tower and use method of oxygen production device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] like figure 1 As shown, the oxygen production device of a medical-grade high-temperature molecular sieve membrane adsorption tower provided in this embodiment includes an air source inlet 1, an air compressor 2, a C-level filter 3, an air storage tank 4, and a T Class filter, Class A filter, Class H filter, 4 high-temperature carbonized ceramic-based molecular sieve adsorption units 5, vacuum pump 6, oxygen gas storage tank 7, nitrogen gas storage tank 8, the end of the oxygen gas storage tank 7 is provided with a first The stop valve 7-3, the end of the nitrogen storage tank 8 is provided with a second stop valve 8-3;

[0055] The vacuum pump 6 is set in the high-temperature carbonized ceramic-based molecular sieve adsorption unit 5, the high-temperature carbonized ceramic-based molecular sieve adsorption unit 5 communicates with the oxygen gas storage tank 7 through the oxygen shunt pipeline 7-2, and the high-temperature carbonized ceramic-based molecular sieve adsorp...

Embodiment 2

[0085] The structural difference between this example and Example 1 is only that the device provided by this example contains three high-temperature carbonized ceramic-based molecular sieve adsorption units 5 .

[0086] The raw materials for the preparation of the oxygen-ion conductive carbonized ceramic-based molecular sieve membrane used in the molecular sieve in the adsorption tower of the device provided in this embodiment include the following components in parts by weight:

[0087]

[0088] The diameter of the nano carboxymethyl cellulose sodium with a degree of polymerization of 475 used in this embodiment is 65 nm.

[0089] Among them, the Ba 0.3 Ce 0.7 co 0.2 Fe 0.8 The preparation method of O hollow fiber membrane, comprises the following steps:

[0090] S1: Add 17.5 parts by weight of EDTA to an aqueous solution of ammonium hydroxide with a mass fraction of 26% to form a water-soluble EDTA ammonium salt solution with a concentration of 3.3M;

[0091] S2: Mix...

Embodiment 3

[0113] The structural difference between this example and Example 1 is only that the device provided by this example contains two high-temperature carbonized ceramic-based molecular sieve adsorption units 5 .

[0114] The raw materials for the preparation of the oxygen-ion conductive carbonized ceramic-based molecular sieve membrane used in the molecular sieve in the adsorption tower of the device provided in this embodiment include the following components in parts by weight:

[0115]

[0116] The nano lignosulfonate with a degree of polymerization of 450 used in this example has a diameter of 80 nm.

[0117] Ba 0.1 Ce 0.9 co 0.1 Fe 0.9 o 0.5 The preparation method of hollow fiber membrane comprises the following steps:

[0118] S1: Add 15 parts of EDTA to an aqueous ammonium hydroxide solution with a mass fraction of 25% to form a water-soluble EDTA ammonium salt solution with a concentration of 3M;

[0119] S2: Mix BaCl according to the molar ratio of 1:9:1:9 2 , ...

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Abstract

The invention provides an oxygen production device of a medical-grade high-temperature molecular sieve membrane adsorption tower and a use method of the oxygen production device. The oxygen production device comprises a gas source access port, an air compressor, a C-grade filter, an air storage tank, a T-grade filter, an A-grade filter, an H-grade filter, 2-4 high-temperature carbonized ceramic-based molecular sieve adsorption units, a vacuum pump, an oxygen storage tank and a nitrogen storage tank which are communicated in sequence, the vacuum pump is arranged in the high-temperature carbonized ceramic-based molecular sieve adsorption unit, the high-temperature carbonized ceramic-based molecular sieve adsorption unit is communicated with the oxygen storage tank through an oxygen diversion pipeline, and the high-temperature carbonized ceramic-based molecular sieve adsorption unit is communicated with the nitrogen storage tank through a nitrogen diversion pipeline. The oxygen production device provided by the invention is provided with the molecular sieve of the adsorption tower of the oxygen ion conductive carbonized ceramic-based molecular sieve membrane with good cyclic utilization rate, and oxygen ions are adsorbed and desorbed under high-temperature vacuum, so that oxygen and nitrogen are efficiently separated, and the oxygen production purity is improved.

Description

technical field [0001] The invention belongs to the technical field of oxygen generators, and in particular relates to an oxygen generator for a medical-grade high-temperature molecular sieve membrane adsorption tower and a method for using the same. Background technique [0002] With economic development and improvement of medical security conditions, the demand for medical oxygen is increasing year by year. The medical molecular sieve oxygen generation system adopts the molecular sieve pressure swing adsorption technology at room temperature and low pressure. Its process flow is simple, the investment is small and the maintenance is convenient. Therefore, most small and medium hospitals use the molecular sieve oxygen generation system as the oxygen source. At present, there are many models of medical molecular sieve oxygen generation systems available on the market, but their process flow and main structure are the same. The core is composed of air compressor, oxygen gener...

Claims

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Application Information

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IPC IPC(8): C01B13/02C04B26/28
CPCC01B13/0255C01B13/0274C04B26/285C04B24/045C04B24/121C04B24/26C04B24/16C04B24/2688C04B14/4618
Inventor 刘哲唐聪能袁再鑫郑其昌周磊
Owner HUNAN VENTMED MEDICAL TECH CO LTD
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