an air separator

A technology of air separator and separation section, which is applied in the direction of specific gas purification/separation, oxygen preparation, chemical instruments and methods, etc., which can solve the problems of low oxygen-enrichment concentration, small amount of oxygen-enrichment, difficult oxygen, etc., and achieve improved separation Effect, simple equipment, effect of increasing 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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Experimental program
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Effect test

Embodiment 1

[0036] use figure 1 The air separator and air filter 2 are made of stainless steel wire mesh with an aperture of 4mm. The air blower 3 adopts an axial flow fan. The inlet pressure of the air blower 3 is -0.1kPa, and the outlet pressure of the air blower 3 is 10kPa. A round hole is provided on the wall of the shielding cylinder 6, and the opening ratio 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 assembly 5 is provided with 12 corona rods 16. The distance between the end of the corona rod 16 close to the fixed shaft 11 and the outer surface of the fixed shaft 11 is 35m. After the air is filtered by the filter 2, The blower 3 is pressurized 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 consumption is 0.0025kW h / Nm 3 .

Embodiment 2

[0038] use Figure 5 The air separator and air filter 2 are 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. A round hole is provided on the wall of the shielding cylinder 6, and the opening ratio is 50%. The length of the magnetic assembly 4 is 8 times the radius of the fixed shaft. The impeller 10 has 4 blades, the corona assembly 5 is provided with 16 corona rods 16, and the distance between the end of the corona rod 16 close to the fixed shaft 11 and the outer surface of the fixed shaft 11 is 35mm. The distance between the corona assembly 5 and the center of the oxygen-enriched assembly 13 is twice the length of the magnetic assembly 4 . The magnetic field conversion assembly 12 adopts a magnetic shield, and the length of the magnetic field conversion assembly 12 is 1 / 2 of the length of the oxygen-enriched assembly 13; the cente...

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Abstract

The invention discloses an air separator, the air separator comprises an air entraining section and an oxygen-enriched separation section according to the gas flowing direction, an air inlet is formedin one side of the air entraining section, 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, and a shielding cylinder is arranged in the oxygen-enriched separation section, the shielding cylinder and the shell of the oxygen-enriched separationsection form a concentric sleeve structure, a fixed shaft is arranged in the shielding cylinder, the fixed shaft is fixedly connected with the air blower, oxygen-enriched components are arranged on the fixed shaft at intervals, and a corona components are arranged in the shielding cylinder at intervals. The air separator has the effects of oxygen enrichment and dehumidification, and also has theadvantages of safety, reliability, low investment cost and the like.

Description

technical field [0001] The invention relates to the field of gas separation, in particular to an oxygen separator 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, so that t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B13/02
CPCC01B13/0248C01B2210/0009C01B2210/0062
Inventor 刘伟王海波廖昌建戴金玲李经伟
Owner CHINA PETROLEUM & CHEM CORP
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