Indoor air purifying device based on low-temperature plasma

Abstract

The invention discloses an indoor air purifying device based on low-temperature plasma. The indoor air purifying device comprises a shell; inside the shell, a fan, a primary filter screen, a low-temperature plasma reaction device and an adsorptive catalytic layer are sequentially arranged from a base plate to a top face cover; the low-temperature plasma reaction device comprises an insulating bracket; a plurality of low-temperature plasma discharging units are mounted on the insulating bracket; each low-temperature plasma discharging unit comprises an outer layer metal cylinder, an inner layer insulating cylinder and a plurality of metal corona wires; the outer layer metal cylinders and the inner layer insulating cylinders are arranged in parallel at intervals; the metal corona wires are arranged in parallel on the sidewall of each inner layer insulating cylinder; the metal corona wires are connected with the high-voltage end of a power supply; each outer layer metal cylinder is connected with the ground terminal of the power supply; a reaction chamber is formed between the metal corona wires and the outer layer metal cylinders. The indoor air purifying device disclosed by the invention is simple and compact in structure, low in wind resistance, large in air treatment capacity, capable of purifying indoor particulate matters, gaseous pollutants, bacteria, viruses and the like, also high in purification efficiency and good in practicability.

Description

technical field [0001] The invention belongs to the technical field of indoor air purifiers, in particular to an indoor air purifier. Background technique [0002] In recent years, with the rapid development of economy, my country's environmental problems have become more and more prominent. Smog weather occurs frequently across the country, and indoor environmental conditions are deteriorating. Indoor air pollutants mainly include inhalable particulate matter, sulfur dioxide, nitrogen oxides, ozone, formaldehyde and other volatile organic compounds, radon and its progeny, ammonia, carbon monoxide, carbon dioxide, polycyclic aromatic hydrocarbons, cooking fume, biological pollutants, etc. How to purify indoor air has become a hot issue in the current environment. [0003] At present, the indoor air purification methods mainly include filtration technology, activated carbon adsorption technology, ultraviolet disinfection technology, ozone purification technology, electrosta...

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Problems solved by technology

[0004] At present, about 80% of the indoor air purification products on the market are mainly based on the principle of adsorption and mechanical filtration, but limited by the nature of adsorbents that are easily saturated and the regular replacement of filters, the removal efficiency of gaseous pollutants is low, and the resulting Problems of secondary pollution and high maintenance costs; only about 20% of indoor air purification products use electrostatic dust removal technology. Existing electrostatic air purification products have problems such as low purification efficiency and high ozone concentration, and most of the traditional dust collection devices are Dense plate structure, easy to accumulate dust at the welding place, difficult to disassemble and clean, users have low evaluation on this, which makes its application have certain limitations

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