A kind of oxygen generator of medical grade high temperature molecular sieve membrane adsorption tower and using method thereof

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

Active Publication Date: 2022-07-01
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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  • A kind of oxygen generator of medical grade high temperature molecular sieve membrane adsorption tower and using method thereof
  • A kind of oxygen generator of medical grade high temperature molecular sieve membrane adsorption tower and using method thereof
  • A kind of oxygen generator of medical grade high temperature molecular sieve membrane adsorption tower and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] like figure 1 As shown, the oxygen generator 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, a T Class filter, Class A filter, Class H filter, 4 high temperature carbonized ceramic base molecular sieve adsorption units 5, vacuum pump 6, oxygen gas storage tank 7, nitrogen gas storage tank 8, the end of oxygen gas storage tank 7 is provided with a first The closing valve 7-3, the end of the nitrogen gas storage tank 8 is provided with a second closing valve 8-3;

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

Embodiment 2

[0085] The only difference in structure between this embodiment and Embodiment 1 is that the device provided in this embodiment contains three high-temperature carbonized ceramic-based molecular sieve adsorption units 5 .

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

[0087]

[0088] The diameter of the nanometer sodium carboxymethyl cellulose with a polymerization degree of 475 used in this example 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: adding 17.5 parts by weight of EDTA to an ammonium hydroxide aqueous solution with a mass fraction of 26% to form a water-soluble EDTA ammonium salt solution with a concentration of 3.3M;

[0091...

Embodiment 3

[0113] The only difference in structure between this embodiment and Embodiment 1 is that the device provided in this embodiment 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, in parts by weight, include the following components:

[0115]

[0116] The diameter of the nano-lignosulfonate with a polymerization degree of 450 used in this example is 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: adding 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 in a molar ratio of 1:9:1:9 2 ...

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Abstract

The invention provides an oxygen generating device for a medical-grade high-temperature molecular sieve membrane adsorption tower and a method for using the same. Filter, H-class filter, 2-4 high-temperature carbonized ceramic-based molecular sieve adsorption units, vacuum pump, oxygen gas storage tank, nitrogen gas storage tank; the vacuum pump is set in the high-temperature carbonized ceramic-based molecular sieve adsorption unit, and the high-temperature carbonized ceramic-based molecular sieve adsorption unit The unit is communicated with the oxygen gas storage tank through an oxygen shunt pipeline, and the high-temperature carbonized ceramic-based molecular sieve adsorption unit is communicated with the nitrogen gas storage tank through a nitrogen shunt pipeline. The oxygen generating device provided by the invention has the molecular sieve of the adsorption tower of the oxygen ion conductive carbonized ceramic base molecular sieve membrane with good recycling rate, and can adsorb and desorb oxygen ions under high temperature vacuum to efficiently separate oxygen and nitrogen to improve the purity of oxygen production.

Description

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

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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