High-purity nitrogen generator and its nitrogen-making process

Abstract

The invention relates to a high purity nitrogen producing machine, which is characterized by comprising an air compressing system (1), an air purification system (5), a pressure swing adsorption nitrogen producing system (12), and a deoxidization system (20), wherein the air compressing system (1), air purification system (5), pressure swing adsorption nitrogen producing system (12), and deoxidization system (20) are arranged in sequence from the front to the back. The machine can be used in fields such as food preservation, electronic assembly, metallurgy, chemical pharmacy, petroleum and natural gas, and the like. The purity of nitrogen gas produced by the machine is high and can reach 99.9995%, and thus the high purity requirement can be met. Two adsorption towers can be rapidly and automatically switched during the production process, and thus the efficiency of nitrogen production is high. Moreover, the exhaust pipes of the adsorption towers are provided with a muffler, and generated noise is reduced therefore. At the same time, the holes of carbon molecular sieve in adsorption towers are adjusted so as to improve the adsorption effect of the carbon molecular sieve.

Description

technical field [0001] The invention relates to a nitrogen generator, in particular to a high-purity PSA (pressure swing adsorption) nitrogen generator and a nitrogen generator process thereof, which can be used in fields such as food preservation, electronic assembly, metallurgy, chemical industry, pharmacy, oil and gas. Background technique [0002] PSA (Pressure Swing Adsorption) Nitrogen Production is a new type of nitrogen that uses clean compressed air as raw material, carbon molecular sieve as adsorbent, and uses the principle of pressure swing adsorption to make carbon molecular sieve full of micropores selectively adsorb gas molecules to obtain nitrogen. Nitrogen technology. [0003] However, the previous PSA nitrogen generators have the following defects: [0004] 1. The purity of nitrogen produced by the conventional PSA nitrogen generator is not high, which cannot meet the demand for high purity. [0005] 2. The two adsorption towers of the conventional PSA nit...

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Problems solved by technology

[0004] 1. The purity of nitrogen produced by the conventional PSA nitrogen generator is not high, which cannot meet the demand for high purity

[0005] 2. The two adsorption towers of the conventional PSA nitrogen generator cannot be quickly and automatically switched to use, and the efficiency of nitrogen production is reduced

[0006] 3. The noise generated when the adsorption tower exhausts in the conventional PSA nitrogen generator is relatively large

[0007] 4. The adsorption effect of the carbon molecular sieve in the adsorption tower in the conventional PSA nitrogen generator is poor

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