Filter element for filtering air

A technology for filtering air and filter elements, applied in the field of air purification, can solve the problem of low purification efficiency of fine particles and achieve high filtration efficiency

Inactive Publication Date: 2016-10-26
MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention provides a filter element for filtering air, aiming to improve the problem that the filter device in the existing air purifier has low purification efficiency for fine particles

Method used

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  • Filter element for filtering air
  • Filter element for filtering air
  • Filter element for filtering air

Examples

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Embodiment 1

[0028] Embodiment 1, with reference to Figure 1 to Figure 3 as shown,

[0029] This embodiment provides a filter element 100 for filtering air, such as figure 1 As shown, the filter element 100 for filtering air includes a housing 110, the housing 110 has an inlet end 101 and an air outlet end 102, and the housing 110 is sequentially provided with a primary filter layer 120, a microfiltration layer 130 and a nanofiltration layer 140 . What needs to be explained here is that, figure 1 The gaps between the primary filter layer 120, the microfiltration layer 130 and the nanofiltration layer 140 in the middle filter element are not used as the standard when the actual filter element is manufactured, but are just for example of different layers of the filter element.

[0030] The primary filter layer 120 is arranged near the air inlet end 101 , and the nanofiltration layer 140 is arranged near the air outlet end 102 . Among them, the primary filter layer 120 is used to support...

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Abstract

The invention provides a filter element for filtering air, and belongs to the field of air purification. The filter element comprises a casing, wherein the casing is provided with an air inlet end and air outlet end; a primary filtration layer, a microfiltration layer and a nanofiltration layer are sequentially arranged in the casing from the air inlet end to the air outlet end; the microfiltration layer comprises at least two layers of overlapped micron fiber membranes; the nanofiltration layer comprises at least two layers of overlapped nanofiber membranes; both the micron fiber membranes and the nanofiber membranes are processed by raw materials containing chitosan through electrostatic spinning technology. The filter element adopts a multistage filter element combination, performs separation, filtration and purification on aerosol particles with different particle sizes, and is high in filtration efficiency. The filtration efficiency of the filter element on PM2.5 particles in the air is 99.9 percent or higher, and high-efficiency purification on PM2.5 is realized. Tests indicate that compared with the filter element in an air purifier, the filtration efficiency of the filter core is 100 times or higher of that of the original filter element.

Description

technical field [0001] The invention relates to the field of air purification, in particular to a filter element for filtering air. Background technique [0002] The air contains a lot of fine particles, harmful gases, etc., among which the fine particles can be suspended in the air for a long time. These particles have small particle size, large area, and strong activity. They are easy to be accompanied by toxic and harmful substances, such as heavy metals, microbial pathogens, etc., and these fine particles stay in the atmosphere for a long time and transport long distances, so they are harmful to human health. and atmospheric environmental quality. The current air purifiers do not have a good filtering effect on fine particles with a small diameter, and the purification efficiency is not high. Contents of the invention [0003] The invention provides a filter element for filtering air, aiming at improving the problem of low purification efficiency of the filter device...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/00B01D46/54B01D39/16B01D39/12B01D39/20
CPCB01D39/12B01D39/1607B01D39/2017B01D46/543B01D2239/08B01D2275/10B01D46/64
Inventor 王劲川邓立宋江锋罗德礼胡俊陈军
Owner MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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