Filtering device and manufacturing method thereof

Abstract

The invention discloses a filtering device, which comprises a filtering unit and a dedusting unit. The filtering unit and the dedusting unit are assembled into a composite filtering structure, the filtering unit is a folded filter screen body, the filter screen body has meshes for ventilation, the space between adjacent meshes is configured as a filtering area, and an adsorption material layer isarranged on the filtering area. The invention also discloses a manufacturing method of the filtering device. The invention can improve the comprehensive performance of the filtering device.

Description

technical field [0001] The invention relates to the technical field of air purification equipment, in particular to a filter device and a manufacturing method for the filter device. Background technique [0002] As a device for purifying air, air filters have been widely used. The general air filter achieves the purpose of purifying the air by filtering the air pollutants through the filter device in the housing. Since there are multiple pollutants in the air, such as suspended particulate matter such as dust and PM2.5, and gaseous pollutants such as formaldehyde, different types of filter units are usually configured in the filter device to remove various pollution in the air. things. [0003] At present, for the removal of gaseous pollutants, especially formaldehyde, it is usually filtered by adhering or filling with adsorption materials, such as filter units with activated carbon. This type of filter unit currently has four structures in the market: honeycomb carbon-fi...

AI Technical Summary

Problems solved by technology

[0004] 1. For the filter unit with honeycomb carbon-filled structure, because activated carbon is prone to shift and collide with each other to produce carbon powder during use and transportation, the conversion rate of this type of filter unit is low, usually between 25% and 30%. between

In addition, the wind resistance of this type of filter unit is usually high

[0005] 2. For the filter unit with honeycomb sticky carbon structure, due to the large gap in the honeycomb, most of the activated carbon cannot touch the air during filtration. Therefore, the conversion filter of this type of filter unit is also low, usually between 25% and 35%. between

[0006] 3. The conversion rate of the filter unit with mesh sticky carbon structure is usually between 30% and 55%. Although the conversion rate of this type of filter unit has been improved, the structure of this type of filter unit is usually multi-layer Activated carbon is layered, which also makes its wind resistance higher

However, the carbon cloth has the problem of odor that is difficult to solve in the market, and its carbon content is limited by the thickness of the material, so it is not easy to adjust

[0008] To sum up, the filter units in current filter devices, especially the filter units used to remove gaseous pollutants such as formaldehyde, more or less have the following problems: high wind resistance, less adhesion of activated carbon (in a limited space) , odor, low conversion rate

In this way, the overall performance of most filter devices is poor

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