Ozone-photolytic air purifier

Abstract

This utility model relates to devices for the disinfection and destruction of chemical and biological contaminants in the air of enclosed spaces using ozone and ultraviolet radiation. It can be used in ventilation systems, household and industrial air purifiers, and for disinfecting various types of spaces. The ozone-photolytic air purifier comprises an aerodynamic housing consisting of two parts connected to form a wind tunnel with a regular octagonal cross-section. A fan, ozone generator, and UV LED module are installed sequentially along the airflow path.The ozone generator consists of a cassette of nine quartz tubes, which are supplied with a high-voltage discharge from the ignition unit. The UV LED module is a circuit board emitting 275 nm wavelengths. The UV LED module is located downstream of the ozone generator, allowing it to irradiate the ozone-air mixture directly in the flow path of the housing. This improves air purification through the synergistic effect of ozone oxidation and photolytic activation by UV radiation.

Description

[0001] 1. Field of technology to which the utility model relates

[0002] This utility model relates to air purification, specifically to devices for the disinfection and destruction of chemical and biological contaminants in the air of enclosed spaces using ozone and ultraviolet radiation. The model can be used in ventilation systems, household and industrial air purifiers, and for disinfecting various types of premises.

[0003] 2. State of the Art (Analysis of Known Patents)

[0004] Devices using ozone and ultraviolet to purify air are known from the prior art.

[0005] A germicidal irradiator with an illuminating function (RU 2755078 C1) is known. It contains UV LEDs and a tube transparent to the radiation. The disadvantage of this solution is its complex design and the lack of ozone generation as an active oxidizer.

[0006] A plasma-photochemical air purification method (RU 2545379 C1) is also known. It involves gas activation through a corona discharge zone, generating radicals and ozone, followed by photooxidation. However, this device requires a complex system of electrodes and photocatalytic filters, which complicates the design.

[0007] Chinese patent CN 209246276 U describes a purifier with an 185 nm ozone lamp and a 254 nm UV lamp irradiating a photocatalytic plate. A drawback is the use of a photocatalyst and UV lamps, which have a short lifespan and require periodic replacement.

[0008] The closest analog (prototype) is Chinese patent CN 213466188 U, which describes a device that combines UV-C LED lamps, an ozone generator, and an ionizer. A controller manages their operation in a specific sequence to prevent mutual weakening of the ozonation and UV radiation effects. The main drawback of this prototype is its sequential, rather than simultaneous, operation.

[0009] 3. Disclosure of the essence of the utility model

[0010] The technical problem that the claimed utility model is aimed at solving is the low efficiency of existing household and industrial air purification devices in terms of removing volatile organic compounds, unpleasant odors and resistant microorganisms in ventilation systems and during the disinfection of premises for various purposes.

[0011] The technical result achieved by implementing the utility model consists in increasing the degree of air purification due to the synergistic effect of oxidation by ozone and its photolytic activation by UV radiation.

[0012] The technical result is achieved by an ozone-photolytic air purifier comprising an aerodynamic housing consisting of two parts connected to form a wind tunnel with a cross-section shaped like a regular octagon. A fan, ozone generator, and UV LED module are installed sequentially along the airflow path. According to the utility model, the ozone generator is designed as a cassette of nine quartz tubes, to which a high-voltage discharge from an ignition unit is applied. The UV LED module is designed as a board emitting 275 nm wavelengths. The UV LED module is located downstream of the ozone generator, capable of irradiating the ozone-air mixture directly in the flow path of the housing.

[0013] Additional distinguishing features:

[0014] The inner surface of the housing is coated with aluminum with a mirror reflective layer, which ensures multiple reflection of UV radiation and increases the exposure time.

[0015] 4. Brief description of drawings

[0016] The utility model is explained by the following graphic materials:

[0017] Fig. 1 - general view of the device.

[0018] Fig. 2 - arrangement of elements inside the device.

[0019] 5. Implementation of the utility model (description of the work according to the drawings)

[0020] Design description (Fig. 1):

[0021] The device contains an aerodynamic housing (1), consisting of two half-housings connected to each other to create a wind tunnel with a cross-section in the form of a regular octagon, at the inlet of which an axial fan (2) is installed. An ozone generator on quartz tubes (3) is located behind the fan. In the middle part of the housing, a UV LED module (4) is installed, which is a board with UV LEDs (5) emitting in the range of 275 nm. The inner surface of the housing is covered with aluminum with a mirror reflective layer (6). On the top panel of the housing there is a carrying handle (7), a control controller handle (8). On the front panel there is a curly outlet (9). A ventilation grill (10) is installed on the rear panel of the housing.

[0022] Description of work (Fig. 1 and Fig. 2):

[0023] The device operates as follows. The fan (2) creates a draft, drawing air from the room into the aerodynamic housing (1). The air first enters the ozone generator (3). The generator produces ozone, which mixes with the air flow. The ozone-air mixture then enters the UV LED module's irradiation zone (4).

[0024] During the irradiation stage (Fig. 2), ozone photolysis occurs: under the influence of hard UV radiation with a wavelength of 275 nm, ozone molecules (O3) decompose, forming atomic oxygen (O2) and hydroxyl radicals (•OH). These radicals have a much higher oxidizing capacity compared to ozone. The mirrored inner surface (6) of the aerodynamic housing (1) ensures multiple reflection of UV rays, allowing for the effective treatment of the ozone-air mixture.

[0025] The active flow coming out of the aerodynamic body (1), containing residual ozone and highly active radicals, ensures deep oxidation of organic contaminants and destruction of microorganisms in the volume of the treated room.

Claims

1. An ozone-photolytic air purifier comprising an aerodynamic housing consisting of two parts connected to each other to create a wind tunnel with a cross-section in the form of a regular octagon, inside which a fan, an ozone generator and a UV LED module are installed sequentially along the air flow, characterized in that the ozone generator is made in the form of a cassette of nine quartz tubes to which a high-voltage discharge is supplied from an ignition unit, and the UV LED module is made in the form of a board emitting 275 nm waves, wherein the UV LED module is located after the ozone generator along the flow with the possibility of irradiating the ozone-air mixture directly in the flow part of the housing.

2. The cleaner according to item 1, characterized in that the inner surface of the housing is covered with aluminum with a mirror-like reflective layer.

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