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Air purification method

A technology for purifying air and air, applied in chemical instruments and methods, separation methods, combined devices, etc., can solve problems such as poor PM2.5 removal effect, and achieve stable removal and good technical effect.

Inactive Publication Date: 2017-11-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is the problem of poor PM2.5 removal effect in the prior art, and a new method for purifying air is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The method comprises the following steps: 1. Pretreat the filtered air and dry the air; 2. Use the corresponding filter material for the first removal to remove particles with an aerodynamic equivalent diameter greater than 2.5 microns and part of PM2.5 ; 3. The second cleaning uses electric dust removal technology to remove residual particles in the air.

[0016] Among them, the filter material is G4 grade filter membrane, the process condition of the electrostatic precipitator is electrostatic electret technology, F7 standard, the pre-drying process condition is condensation technology, and the filter material is used to remove particles with an aerodynamic equivalent diameter greater than 2.5 microns And 7.5% of PM2.5 particles, the concentration of PM2.5 particles at the outlet of the electrostatic precipitator is 0.8%.

[0017] Obviously, adopt the method of the present invention, the PM2.5 removal effect in the air is better.

Embodiment 2

[0019] According to the conditions and steps described in Example 1, the filter material is a G4 grade filter membrane, the process conditions of the electrostatic precipitator are electrostatic electret technology, F8 grade standard, the pre-drying process conditions are condensation technology, and the filter material is used to remove air. For particles with a kinetic equivalent diameter greater than 2.5 microns and 7.5% of PM2.5 particles, the concentration of PM2.5 particles at the outlet of the electrostatic precipitator is 0.3%.

[0020] Obviously, adopt the method of the present invention, the PM2.5 removal effect in the air is better.

Embodiment 3

[0022] According to the conditions and steps described in Example 1, the filter material is an M5 grade filter membrane, the process condition of the electrostatic precipitator is electrostatic electret technology, M6 grade standard, the pre-drying process condition is condensation technology, and the filter material is used to remove the air For particles with a kinetic equivalent diameter larger than 2.5 microns and 32.7% of PM2.5 particles, the concentration of PM2.5 particles at the outlet of the electrostatic precipitator is 0.4%.

[0023] Obviously, adopt the method of the present invention, the PM2.5 removal effect in the air is better.

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Abstract

The present invention relates to an air purification method. A purpose of the present invention is mainly to solve the problems of poor PM2.5 removing effect in the existing conventional common civil air purification technology. The technical scheme of the present invention comprises an air purification method, wherein two principles such as filtration and electrostatic precipitating are combined during air purification so as to effectively purify dust. With the technical scheme of the present invention, the problem in the prior art is well solved. The air purification method of the present invention can be used for air purification.

Description

technical field [0001] The invention relates to a method for purifying air. Background technique [0002] PM2.5 refers to particulate matter in the air with an aerodynamic equivalent diameter less than or equal to 2.5 microns. Moreover, it can be suspended in the air for a long time, carrying a large amount of toxic and harmful substances such as heavy metals and pathogenic microorganisms. Because its fine particles can enter the deep lungs, it has a great impact on human health. Whether in production or life, PM2.5 exists widely in the air, and ordinary air cleaning products are difficult to completely remove, so how to efficiently remove PM2.5 has attracted widespread attention. [0003] Thorough and efficient removal of PM2.5 requires quite high conditions. If the filtering method is used, sufficient wind pressure and correspondingly fine filter material are required, but ordinary fans are far from meeting this requirement (selection and comparison of PM2.5 air filters ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D50/00B01D53/26
CPCB01D50/00B01D53/26B01D2221/16
Inventor 武珊珊于金宁张昌运牟洪祥何春宏张岩
Owner CHINA PETROLEUM & CHEM CORP