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Air filter

An air filter and filter technology, applied in the fields of dispersed particle filtration, chemical instruments and methods, dispersed particle separation, etc., can solve the problem of inability to protect microorganisms such as bacteria and viruses

Inactive Publication Date: 2004-01-21
SANITARY EQUIP INST ACAD OF MILITARY MEDICAL SCI PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two-stage air filters cannot protect against microorganisms such as bacteria and viruses.

Method used

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Embodiment 1

[0018] The structure and performance detection of embodiment one air filter

[0019] The tank body 11 of the air filter of the present invention is cylindrical, and the internal structure from the tank bottom to the tank top is the filter lower cover 7, the polypropylene nonwoven fabric hydrophobic layer 2, the low-resistance high-efficiency glass fiber filter paper layer 3, and the separator 8 , Activated carbon layer with silver salt 4, polypropylene nonwoven fabric hydrophobic layer 2, separator 8, spring 9, separator 8, low-resistance high-efficiency glass fiber filter paper layer 3, activated carbon fiber nonwoven fabric layer 5, polypropylene nonwoven fabric Hydrophobic layer 2, see attached figure 2 . Wherein the effect of the spring is to compact the activated carbon layer 4 containing silver salt, and the effect of the polypropylene nonwoven fabric hydrophobic layer 2 adjacent to it is to avoid the diffusion of the activated carbon layer.

[0020] Th...

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Abstract

The air filter is one two-stage filtering structure, and each of the filtering structure contains efficient filtering material layer and adsorptive active carbon layer. The present invention has the features of high filtering efficiency, low production cost, etc. and is suitable for medicine production, bioengineering, bioprotection and other fields, especially protection against SARS virus.

Description

technical field [0001] The invention relates to an air filter, in particular to an air filter which can be used for biological protection. Background technique [0002] Air filters are widely used in various fields such as electronics, precision instruments, machinery, metallurgy, chemicals, textiles, medicine, bioengineering, food, and cosmetics. Due to different use environments, there are many kinds of air filters. According to different filtration efficiencies, air filters can be divided into high-efficiency filters, medium-efficiency filters, and coarse-effect filters. Among them, the coarse-effect filter generally uses composite fiber, non-woven fabric, etc. as the filter material. Medium-efficiency filters generally use polypropylene filter materials, non-woven fabrics or glass fibers as filter materials, which can be used for purification and filtration of general air-conditioning systems. Medium-effect and coarse-effect filters can also be used as pre-filters for h...

Claims

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Application Information

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IPC IPC(8): B01D46/30B01D53/04
Inventor 王政高万玉田丰陈世谦杨健
Owner SANITARY EQUIP INST ACAD OF MILITARY MEDICAL SCI PLA
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