Three-proofing filtering element

Abstract

The invention discloses a three-proofing filtering element, which comprises a metal external barrel, an upper cover plate, a lower cover plate, a metal inner cover, a paper core upper end cover, a paper core lower end cover, a paper core and an activated carbon granule layer. The three-proofing filtering element has a scientific and reasonable overall structure, can efficiently filter particulates and gas smoke through two-stage filtering, is suitable for military installation, refuge places, fire sites and other specific environments, and has excellent resistance to impact, firing pulse and harsh environment. In the first-stage filtering, the paper core, especially fiberglass paper core, is adopted for filtering, thus having the advantages of high filtering precision, low original resistance, high filtering efficiency, high temperature resistance and high pressure resistance, strong chemical resistance, and resistance to mold and moisture. In the second-stage filtering, activated carbon is adopted for filtering, adsorption and conversion, thus having a distinct effect of removing toxic chemicals, fine dust, pollen, pathogenic bacteria, smoke, water molecules, off odor, formaldehyde, VOC organic volatiles and other gases, and the effective rate is up to 99.99995%.

Description

technical field [0001] The invention relates to the structure of a filter element, in particular to a three-proof filter element. Background technique [0002] The current filter element has a simple structure and poor filtering effect, and it is not enough in terms of impact resistance, anti-explosion pulse and anti-harsh environmental conditions, and cannot meet the air filtration under special requirements. In many special environments, such as military equipment, shelters, fire scenes, etc., it is necessary to thoroughly filter out toxic substances such as chloropicrin, hydrogen chloride, cyclohexane, hydrogen sulfide, sulfur dioxide, chlorine, ammonia, etc., the current general structure The filter element is no longer applicable. Therefore, there are still many unreasonable places in the current filter element, which need to be improved and perfected. Contents of the invention [0003] In view of the above deficiencies, the purpose of the present invention is to pr...

AI Technical Summary

Problems solved by technology

[0002] The current filter element has a simple structure and poor filtering effect, and it is not enough in impact resistance, anti-explosion pulse and anti-harsh environmental conditions, and cannot meet the special requirements of air filtration.

In many special environments, such as military equipment, shelters, fire scenes, etc., it is necessary to thoroughly filter out toxic substances such as chloropicrin, hydrogen chloride, cyclohexane, hydrogen sulfide, sulfur dioxide, chlorine, ammonia, etc., the current general structure The filter element is no longer applicable

Therefore, there are still many unreasonable places in the current filter element, which needs to be improved and perfected.

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