High-dust holding capacity and high-efficiency composite electrostatic air purification device

Abstract

The invention discloses a high-dust holding capacity and high-efficiency composite electrostatic air purification device, which sequentially comprises a primary filtering screen, a carbon brush charge region, an electrostatic dust removal region, an air filter and a dust hopper, wherein a differential pressure transducer is arranged at the two ends of the air filter; a material level sensor is arranged in the dust hopper. According to the composite electrostatic air purification device, charged particles are collected by the electrostatic dust removal region, so that the air filter is protected, and the service life of the air filter is prolonged; the dust holding capacity of the air filter is reduced, pressure drop is reduced, and labor is saved; the exposure time of air, dust and particles on the air filter is reduced, and secondary pollution to the air caused by gas pollutants and bacterial viruses in a particle filtering process is reduced; the filtering efficiency of the electrostatic dust removal region is insensitive to blast volume changes, and the influence of proper increase of the blast volume to the overall dust removal efficiency of the device is limited, so that the purification device is suitable for blast volume variable buildings.

Description

technical field [0001] The invention belongs to the technical field of air conditioning, and in particular relates to an air filtration and purification device with high efficiency, energy saving, economy and environmental protection. Background technique [0002] Particulate matter in the building environment seriously endangers human health and work efficiency, such as asthma and respiratory diseases. At present, the commonly used purification method in HVAC system is filter material filtration, such as high-efficiency filter (HEPA) and bag filter. However, this type of filter itself has the following disadvantages, including the contamination of the particle layer of the filter material, and the excessive pressure drop. As the filtration time increases, a particle layer will adhere to the surface of the filter material filter. The thickness of the particle layer is not large but the pressure drop is large; this particle layer will pollute the fresh air passing through th...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a composite electrostatic air purification device with high dust holding capacity and high efficiency, which solves the problems of low efficiency in the electrostatic area of ​​the electrostatic precipitator, high energy consumption during operation, large investment cost, and low service life of the composite dust removal system in the prior art.

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