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A six-column oxygen production method

An oxygen production method and oxygen technology, applied in chemical instruments and methods, oxygen preparation, oxygen/ozone/oxide/hydroxide, etc., can solve problems such as waste of residual gas, and achieve the effect of improving work efficiency

Inactive Publication Date: 2018-12-14
WEIHAI DONGXING ELECTRONICS +1
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Problems solved by technology

However, the four-tower process also has the problem of waste of residual gas after the second pressure equalization, and the oxygen extraction rate can only reach 40%-45%. Although it is greatly improved compared with the 25%-35% of the two-tower process, there is still an improvement space

Method used

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Embodiment Construction

[0050] The first adsorption tower, the second adsorption tower, the third adsorption tower, the fourth adsorption tower, the fifth adsorption tower and the sixth adsorption tower are provided, and the six adsorption towers are molecular sieve adsorption towers, which are characterized in that the first adsorption tower, The second adsorption tower, the third adsorption tower, the fourth adsorption tower, the fifth adsorption tower, and the sixth adsorption tower respectively pass through the air pipeline of the first adsorption tower, the air pipeline of the second adsorption tower, the air pipeline of the third adsorption tower, and the fourth adsorption tower. Tower air pipeline, fifth adsorption tower air pipeline, sixth adsorption tower air pipeline and first adsorption tower oxygen pipeline, second adsorption tower oxygen pipeline, third adsorption tower oxygen pipeline, fourth adsorption tower oxygen pipeline, fifth adsorption tower The oxygen pipeline and the oxygen pipe...

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Abstract

The invention relates to a six-column oxygen production method, and belongs to the field of methods for separating oxygen from air. The objective of the invention is to overcome technical disadvantages that double-column oxygen production is low in efficiency, and four-column molecular sieve oxygen production is complex to control and high in noise at present. The method utilizes six molecular sieve adsorption columns and performs six steps to complete a cycle period of each molecular sieve adsorption column. Through cyclic operation of the six columns, the working efficiency of the adsorptioncolumns is further increased, the oxygen extraction rate can be increased to 60%, and the speed is increased by 25%. One cycle of air separation for oxygen production is completed by six steps of each adsorption column, the six adsorption columns are operated alternatively, ensuring that high-concentration oxygen is discharged from one adsorption column in each step, and ensuring rapid and stabledischarging of high-purity oxygen.

Description

technical field [0001] The invention relates to the field of separating and extracting oxygen from air, in particular, it relates to a six-tower oxygen production method. Background technique [0002] As we all know, with the rapid development of molecular sieve oxygen generation technology, the use of molecular sieve oxygen generation system for oxygen supply has been more and more recognized by hospitals and other oxygen institutions. Compared with oxygen cylinders and liquid oxygen, the molecular sieve oxygen system has the characteristics of simple use, safety and reliability, which greatly reduces the hospital's management and oxygen cost. [0003] The small and medium-sized molecular sieve oxygen generators currently used in hospitals are mainly two-tower and four-tower products of PSA oxygen generators. PSA is Pressure Swing adsorption. In the adsorption tower, after a period of time, the molecular sieve inside the adsorption tower is adsorbed and saturated, and then...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B13/02
CPCC01B13/0259C01B2210/0046
Inventor 刘应书张立刚王颖李子宜
Owner WEIHAI DONGXING ELECTRONICS
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