Composite air purifying and filtering structure and composite air purifying filter element

A technology of air purification and filtration structure, applied in the field of air purification, can solve the problems of limited HEPA filter removal function, filter clogging failure, etc., and achieve the effect of improving purification effect, improving adsorption performance, and increasing contact area

Inactive Publication Date: 2017-06-13
GD MIDEA ENVIRONMENT APPLIANCES MFG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the seasons where smog occurs frequently, the HEPA filter for removing particulate matter has limited removal function, and the dust holding capacity can easily reach saturation, causing the filter to be blocked by dust and fail

Method used

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  • Composite air purifying and filtering structure and composite air purifying filter element
  • Composite air purifying and filtering structure and composite air purifying filter element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1) According to the composite air purification filter structure of this embodiment (also referred to as "composite air purification filter paper") such as figure 1 shown.

[0037] 2) The preparation method of negative ion fiber filter layer 1 is that tourmaline powder with a certain mesh number of 6000 and PET non-woven masterbatch are blended and extruded on a twin-screw extruder, and the mass ratio of the added content of tourmaline powder is 2.0%. The obtained negative ion masterbatch is dried at 100 degrees Celsius, and finally processed into negative ion fibers by spinning.

[0038] 3) The particle filter layer 2 selects PP melt-blown filter paper with a filtration efficiency of 95%;

[0039] 4) Adsorption catalytic particle layer 3 is activated carbon supported metal oxide MnO x Mix the Mn precursor manganese nitrate solution with activated carbon, impregnate and stir, impregnate for 24 hours, and then bake at 300°C for 30 minutes to obtain catalyst particles for ...

Embodiment 2

[0046] 1) According to the composite air purification filter structure of the present embodiment such as figure 2 shown.

[0047] 2) The preparation method of the negative ion fiber filter layer 1 is that tourmaline powder with a certain mesh number of 9000 and PET non-woven masterbatch are blended and extruded on a twin-screw extruder, and the mass ratio of the tourmaline powder is 3.0%. The anion masterbatch obtained is dried at 100 degrees Celsius, and finally spun into anion fibers.

[0048] 3) Adsorption catalytic particle layer 2 is activated carbon supported metal oxide MnO x Mix the Mn precursor manganese acetate tetrahydrate solution with activated carbon, impregnate and stir, impregnate for 24 hours, and then bake at 300°C for 30 minutes to obtain room temperature catalytic oxidation of formaldehyde catalyst particles, thus making adsorption catalytic particle layer 2 , wherein the activated carbon is selected to have a CTC adsorption rate of more than 60% and a p...

Embodiment 3

[0056] 1) According to the composite air purification filter structure of the present embodiment such as figure 1 shown.

[0057] 2) The preparation method of negative ion fiber filter layer 1 is that tourmaline powder with a certain mesh number of 6000 and PET non-woven masterbatch are blended and extruded on a twin-screw extruder, and the mass ratio of the added content of tourmaline powder is 2.0%. The anion masterbatch obtained is dried at 100 degrees Celsius, and finally spun into anion fibers.

[0058] 3) The particle filter layer 2 selects PP melt-blown filter paper with a filter efficiency of 95%.

[0059] 4) Adsorption catalytic particle layer 3 is activated carbon supported metal oxide MnO x Mix the Mn precursor manganese nitrate solution with activated carbon, impregnate and stir, impregnate for 24 hours, and then bake at 300°C for 30 minutes to obtain room temperature catalytic oxidation of formaldehyde catalyst particles, thus making adsorption catalytic particl...

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Abstract

The invention relates to a composite air purifying and filtering structure and a composite air purifying filter element. The composite air purifying and filtering structure comprises a negative-ion fiber pre-filtering layer, a particulate matter filtering layer, an adsorption-catalysis particle layer and a supporting fiber layer sequentially from outside to inside or a negative-ion fiber pre-filtering layer, an adsorption-catalysis particle layer, a particulate matter filtering layer and a supporting fiber layer sequentially from outside to inside. Compared with an existing filtering structure, the composite air purifying and filtering structure has the advantages that quick purification and adsorption properties of the particulate matter filtering layer for particulate matter pollutants in the environment can be improved remarkably with the aid of the negative-ion fiber pre-filtering layer, and gaseous pollutant molecule removal rate of the whole filter element can be increased with the aid of the adsorption-catalysis particle layer.

Description

technical field [0001] The invention relates to the technical field of air purification, in particular to a composite air purification filter structure and a composite air purification filter element. Background technique [0002] With the improvement of people's living standards, the problem of environmental pollution has gradually aggravated. Especially in autumn and winter, with the collective heating of Chinese people and the discharge of industrial waste, the environment is filled with a large amount of particulate matter, causing smog and affecting the air quality in the indoor environment. Conventional indoor air purification machines are often equipped with medium-efficiency or high-efficiency PP melt-blown non-woven fabric materials with the function of removing particles, which are used to intercept particles in the indoor environment and achieve the removal of dust particles and bacteria in the indoor environment. effect. However, in the season of frequent smog,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/72B01D46/10B32B27/02B32B27/12B32B9/00B32B9/04B32B27/32B32B27/36
CPCB01D46/0032B01D46/10B01D53/8668B01D2255/2073B01D2258/06B32B9/007B32B9/045B32B9/047B32B27/12B32B27/32B32B2262/0276
Inventor 刘智
Owner GD MIDEA ENVIRONMENT APPLIANCES MFG
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