Air purifying device, ventilating system and rail train

Abstract

The invention discloses an air purifying device, a ventilating system and a rail train. The air purifying unit comprises a purifying unit, both sides of the purifying unit are respectively connected with a gas inlet and a gas outlet; the purifying unit is formed by linking multiple purifying modules arranged side by side in series; the purifying module includes a discharge reactor, and a discharge zone of the discharge reactor is provided with a light catalytic unit; the discharge reactor discharges to generate low-temperature plasma body, and the low-temperature plasma is synergistic with light catalyst, and polluted air is purified through the purifying module. Low-temperature plasma technology is combined with the photocatalysis technology, and thereby overcoming the influence of the light catalyst deactivation on purifying efficiency after using for a long time, and solving the problem of secondary pollution caused by incomplete product degrading when the low-temperature plasma technology is used independently, and further improving the purifying efficiency and the service life of the light catalyst layer.

Description

technical field [0001] The invention relates to the field of air purification, in particular to an air purification device, a ventilation system and a rail train. Background technique [0002] Railway air-conditioned trains are a densely populated and relatively closed space. During use, a mixed ventilation method is generally adopted, most of which are the return air inside the train, and the fresh air content is relatively small. There is a long-term lack of effective ventilation in the train. The internal air pollution is serious, especially the toilets on the train because of the poorest air circulation, resulting in a long-term unpleasant smell, and the closed train compartment space will also produce carbon monoxide. [0003] At present, the air purification measures used on domestic railway trains are only traditional air pre-filtration methods, which cannot effectively purify the air; moreover, most of the products on the market are filter-adsorption treatment produc...

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Problems solved by technology

[0002] Railway air-conditioned trains are a densely populated and relatively closed space. During use, a mixed ventilation method is generally adopted, most of which are the return air inside the train, and the fresh air content is relatively small. There is a long-term lack of effective ventilation in the train. The internal air pollution is serious, especially the toilets on the train because of the poorest air circulation, resulting in a long-term unpleasant smell, and the closed space of the train compartment will also produce carbon monoxide

[0003] At present, the air purification measures used on domestic railway trains are only traditional air pre-filtration methods, which cannot effectively purify the air; moreover, most of the products on the market are filter-adsorption treatment products, which require regular replacement of consumables, and the treatment effect on carbon monoxide is not good. good

[0004] Low-temperature plasma technology has the advantages of short treatment process, high efficiency, and wide application range, but it has disadvantages such as low removal rate, high energy consumption, and incomplete product degradation when used alone. Photocatalytic technology has the advantages of easy operation and low energy consumption. , less secondary pollution, etc., but also has the disadvantages of being limited by ultraviolet light sources, and the catalyst is easily poisoned and deactivated

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