Air purifier

Abstract

The invention relates to the field of air purification, and discloses an air purifier. A water tank is formed in the bottom of the cavity of the air purifier, a barrier wall which downwards extends into the water tank is formed between an air inlet and an air outlet, thus, an air inlet channel is formed between the air inlet and the water tank, an air outlet channel is formed between the water tank and the air outlet, the barrier wall is provided with a jet flow seam which is positioned below the liquid level of the water tank, and the jet flow seam is shrinking flow channel from the air inletchannel to the air outlet channel. The jet flow seam is in the design of the shrinking flow channel, air flows into the shrinking flow channel from the air inlet channel, the sectional dimension of aflowing path is suddenly reduced, and air flow is accelerated for the first time; and when air flows through the jet flow seam, the sectional dimension is further reduced, the air flow is acceleratedagain, after the air flow is accelerated twice, water-air mixing adequacy is also increased, and the air filtering and purifying efficiency is improved.

Description

technical field [0001] The invention relates to the field of air purification, in particular to an air purifier adopting consumable-free air filtration technology. Background technique [0002] At present, with the improvement of people's attention to healthy life, the problems of indoor air pollution and purification are getting more and more attention. Existing air purifiers mainly use HEPA filters to intercept PM particles in the air, and activated carbon filters to absorb air VOC gases. As the consumable parts of the air purifier, the HEPA filter and the activated carbon filter need to be replaced regularly, causing additional costs to the user. In addition, bacteria, viruses, etc. trapped by the filter, as well as VOC gases adsorbed by activated carbon, will be released again if not treated in time, causing secondary pollution. [0003] In order to solve the above problems, a known consumable-free air purifier adopts the principle of water filtration, and only uses th...

AI Technical Summary

Problems solved by technology

[0005] However, in the technical solution of the first spray water filter air purifier, the relative flow velocity between the dust in the air and the sprayed water droplets is low, and the dust, especially PM2. It is difficult to be captured by water droplets, so this type of air purifier has low efficiency in purifying PM2.5

Moreover, from the water to the water film or water curtain, it is necessary to use a water pump to increase the water pressure, so the structure of the purifier itself is complicated and the cost is high; in the second scheme, when the air enters the water, the air passes through the water in the form of bubbles, If the dust is wrapped inside the bubble, it will lose the opportunity to contact with water. Therefore, this structure theoretically only removes the dust on the bubble wall, so the purification efficiency is not high

[0006] Based on the above reasons, there is no good solution for the existing consumable-free air filtration technology, which can improve the filtration and purification efficiency without increasing the structure complexity and manufacturing cost.

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