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an air separation device

A technology of air separation and separation section, which is applied in the direction of specific gas purification/separation, oxygen preparation, climate sustainability, etc. It can solve the problems of low oxygen enrichment concentration, small amount of oxygen enrichment, and oxygen difficulty, so as to improve the separation effect , The equipment is simple, the effect of increasing the concentration

Active Publication Date: 2020-05-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Patent CN101020569A discloses a magnetic oxygen-enriched air machine, which is mainly composed of an oxygen-permeable layer and an oxygen-enriched air pump. The air pump is provided with a shroud with a rotating magnetic field, and the magnetic force generated by the rotating magnetic field is used to gather the air in the oxygen-gathering device. The oxygen on the surface is effectively introduced into the air pump, but there are problems such as the low concentration of enriched oxygen and the small amount of enriched oxygen.
[0007] Patent CN101857200A discloses a new type combined magnetic oxygen enrichment device. The oxygen enrichment device adopts three-stage series oxygen enrichment to increase the oxygen purity step by step. However, in the actual operation process, the higher the oxygen concentration, the more difficult it is for oxygen to escape from the magnetic field.

Method used

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Effect test

Embodiment 1

[0034] use figure 1 In the air separation device, the filter material of the air filter 2 is made of stainless steel wire mesh, and the filter mesh has an aperture of 4mm. The blower 3 adopts an axial flow fan. The inlet pressure of the blower 3 is -0.1kPa, and the outlet pressure of the blower 3 is 10kPa. The cylinder wall of the oxygen separation and collection cylinder 6 is provided with circular holes, and the opening ratio is 45%. The length of the magnetic assembly 4 is 8 times the radius of the fixed shaft. The impeller 10 has 6 blades, and the corona rods 17 are evenly distributed along the outer diameter direction of the oxygen separation collection cylinder 6. The distance between them is 15mm. After the air is filtered by the filter 2, it is pressurized by the blower 3 to 10kPa, and enters the ionization-magnetic field oxygen-enrichment section. The ionization-magnetic field oxygen-enrichment section is set to 4 levels. . Magnetic oxygen enrichment energy consum...

Embodiment 2

[0036] use Figure 5 In the air separation device, the filter material of the air filter 2 is made of stainless steel wire mesh with an aperture of 4mm. The blower 3 adopts an axial flow fan. The inlet pressure of the blower 3 is -0.1kPa, and the outlet pressure of the blower 3 is 8kPa. The cylinder wall of the oxygen separation collection cylinder 6 is provided with circular holes, and the opening rate is 50%. The length of the magnetic assembly 4 is 8 times the radius of the fixed shaft. The impeller 10 has 6 blades, and the corona rods 17 are evenly distributed along the outer diameter direction of the oxygen separation collection cylinder 6. The distance between them is 15mm. The magnetic field conversion assembly 13 adopts a magnetic shield, and the length of the magnetic field conversion assembly 13 is 1 / 2 of the length of the oxygen-enriched assembly 14; the center distance between the magnetic field conversion assembly 13 and the oxygen-enriched assembly 14 is twice ...

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Abstract

The invention discloses an air separation device. The air separation equipment comprises an air entraining section and an oxygen-enriched separation section, an air inlet is formed on one side of theair entraining section, and an oxygen-enriched flow outlet and a nitrogen-rich flow outlet are formed in the shell of the oxygen-enriched separation section; an air filter and an air blower are arranged in the air entraining section; a fixed shaft and an oxygen separation and collection barrel are arranged in the oxygen-enriched separation section, the oxygen separation and collection barrel and the shell of the oxygen-enriched separation section form a concentric sleeve structure, the fixed shaft is fixedly connected with the air blower, and more than one oxygen-enriched component is arrangedin the oxygen separation and collection barrel. The oxygen separation device has the advantages of being safe and reliable, simple in equipment, low in operation cost, obvious in energy-saving effectand the like.

Description

technical field [0001] The invention relates to the field of gas separation, in particular to an oxygen separation device in air. Background technique [0002] The traditional oxygen production method is air cryogenic fractional distillation, which can produce high-purity oxygen and nitrogen. However, in many occasions, such as wastewater treatment, metal smelting, and chemical waste gas treatment, high-purity oxygen like cryogenic fractionation is not needed, and the amount of enriched oxygen is relatively large. For this reason, people have been pursuing more economical and simple oxygen enrichment methods, such as molecular sieve pressure swing adsorption method and membrane oxygen enrichment technology. [0003] Membrane oxygen enrichment is the use of oxygen-enriched membranes for air separation. Oxygen-enriched membrane technology is advanced and mature. The working principle of membrane separation air is the selective permeability function of the polymer membrane, s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B13/02
CPCC01B13/0248C01B2210/0009C01B2210/0062Y02P20/10
Inventor 刘伟王海波廖昌建孟凡飞李经伟
Owner CHINA PETROLEUM & CHEM CORP
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