CN110056996A - Air cleaning unit and air cleaning system - Google Patents

Abstract

The invention belongs to the technical field of environmental protection, and relates to an air purification device and an air purification system. The air purification device includes a reactor, and a transparent photocatalytic substrate group, a light source and a reflection unit arranged inside the reactor; the transparent photocatalytic substrate group is composed of a plurality of transparent photocatalytic substrates arranged at intervals, and a plurality of transparent light The catalytic substrates are arranged in a staggered manner to form a curved airflow channel for air circulation, and each transparent photocatalytic substrate is loaded with photocatalyst material; the reflection unit is arranged in the light emission direction of the light source, and the reflection unit can reflect the light emitted by the light source to the transparent light on the catalytic substrate. The photocatalytic air purification device of the present invention is provided with a tempered photocatalytic glass and a reflector, which can utilize light energy to the maximum extent; an S-shaped gas channel is provided, which can effectively increase the photocatalytic reaction time and make the air purification more thorough; High catalytic efficiency. Compared with the traditional technology, the present invention has scientific and reasonable design and obvious air purification effect.

Description

Air purification devices and air purification systems

technical field

The invention belongs to the technical field of environmental protection, and relates to gas purification equipment, in particular to an air purification device and an air purification system.

Background technique

There are more than 500 kinds of volatile organic compounds in indoor air, including more than 20 kinds of carcinogens and more than 200 kinds of pathogenic viruses. Among them, the most harmful pollutants are: ammonia, formaldehyde, benzene, radon and esters, trichloroethylene Wait. The pollution level of indoor air is 2 to 5 times more serious than that of outdoor air, and the content of harmful substances in the air in the car is 5 to 10 times that of homes and offices. According to the survey, 68% of the diseases are caused by indoor pollution, and indoor air pollution has become one of the five major environmental factors that endanger human health.

In the prior art, technologies often used in air purifiers include adsorption technology, negative (positive) ion technology, catalytic technology, photocatalyst technology, and HEPA high-efficiency filtration technology. Among them, the photocatalyst technology involved is considered to be an effective method of sterilization and deodorization. Photocatalyst is a general term for semiconductor nanomaterials with strong photocatalytic effect represented by titanium dioxide nanoparticles. After it is loaded on the surface of the substrate, under the excitation of a certain wavelength of light, it can produce a strong photocatalytic degradation function, which can degrade harmful gases in the air, kill a variety of bacteria, and also have functions such as deodorization and antifouling. . The purification effect of photocatalyst is long-lasting and effective, and is suitable for air purification devices.

At present, photocatalysts used in air purification devices mainly have the following deficiencies: the long life of UV lamps affects the long-term catalytic efficiency of photocatalyst devices; the large size of UV lamps results in larger volume of air purification devices; most photocatalyst carriers are made of metal substrates or filters. The mesh material has poor light transmittance, and the photocatalytic effect of the photocatalyst is reduced; the light path design of the photocatalytic reaction space is unreasonable, resulting in a low utilization rate of light energy and affecting the photocatalytic effect.

In view of this, the present invention is proposed.

SUMMARY OF THE INVENTION

The first object of the present invention is to provide an air purification device, which has the characteristics of reasonable design of photocatalytic reaction space optical path, high utilization rate of light energy by photocatalyst, high photocatalytic efficiency, and obvious air purification effect, which can overcome the above problems or at least The above-mentioned technical problems are partially solved.

The second object of the present invention is to provide an air purification system including the above air purification device.

To achieve the above object, the technical scheme adopted in the present invention is:

According to one aspect of the present invention, the present invention provides an air purification device, comprising a reactor, and a transparent photocatalytic substrate group, a light source and a reflection unit arranged inside the reactor;

The transparent photocatalytic substrate group is composed of a plurality of transparent photocatalytic substrates arranged at intervals, and a plurality of the transparent photocatalytic substrates are alternately arranged to form a curved airflow channel for air circulation. The photocatalyst material is loaded on the chip;

The reflection unit is arranged in the light exit direction of the light source, and the reflection unit can reflect the light emitted by the light source to the transparent photocatalytic substrate.

Preferably, the reflection unit is arranged in the light emitting direction of the front and back sides of the light source.

Preferably, the curved airflow channel is an "S"-shaped airflow channel, a "C"-shaped airflow channel, a zigzag-shaped airflow channel or a wave-shaped airflow channel.

Preferably, the transparent photocatalytic substrate is at least one of glass or transparent ceramics, preferably glass, more preferably tempered glass;

Preferably, the photocatalyst material is zinc oxide, nano-titanium dioxide or modified nano-titanium dioxide material.

Preferably, a plurality of the transparent photocatalytic substrates are arranged at equal or variable intervals, preferably at equal intervals;

Preferably, the distance between two adjacent transparent photocatalytic substrates is 3-15 cm, preferably 5-10 cm.

Preferably, an air inlet and an air outlet are respectively provided on both sides of the reactor, the light source is provided on the inner sidewall of the reactor near the gas inlet, and the light source is provided on the inner sidewall of the reactor near the gas outlet having the reflecting unit;

Preferably, the emission wavelength of the light source matches the absorption wavelength of the photocatalyst material, and the light source includes at least one of a visible light LED light source or an ultraviolet LED light source;

Preferably, the reflecting unit is a reflecting mirror.

Preferably, the light source area is adapted to the cross-sectional area of the reflection unit, and the light source and the reflection unit are arranged in parallel with each other.

Preferably, a filter is also included;

The filter is arranged at the gas inlet of the reactor, and/or the filter is arranged at the gas outlet of the reactor.

Preferably, a micro-electrostatic filter and an activated carbon filter are provided at the gas inlet of the reactor;

And/or, a micro-electrostatic filter is arranged at the gas outlet of the reactor.

Preferably, both the air inlet and the air outlet are provided with card slots, and the filter is installed in the card slots.

According to another aspect of the present invention, the present invention also provides an air purification system, comprising the above-mentioned air purification device and a fan.

Compared with the prior art, the beneficial effects of the present invention are:

1. The air purification device provided by the present invention includes a reactor, and a transparent photocatalytic substrate group composed of several transparent photocatalytic substrates is arranged in the reactor, and these transparent photocatalytic substrates are staggered to form a Curved air flow channel, and each transparent photocatalytic substrate is loaded with photocatalyst material, a light source and a reflection unit are also arranged in the reactor, and the reflection unit is arranged in the light exit direction of the light source and reflects the light emitted by the light source to the transparent Therefore, through reasonable optical path design, the utilization rate of light energy by the photocatalyst is increased, the photocatalytic efficiency is improved, the design is scientific and reasonable, and the air purification effect is obvious. Further, the air purification device is a photocatalyst indoor air purification device, and a curved air flow channel is arranged in the reactor, which increases the residence time of the gas in the reactor, thereby effectively increasing the light emission of the organic pollutant gas on the photocatalyst carrier. The catalytic reaction time can effectively remove various organic pollutants and microorganisms in the indoor air, and improve the photocatalytic efficiency; at the same time, the photocatalyst carrier is a transparent carrier, which ensures better light transmittance while making the photocatalytic effect better and air purification. The effect is obvious, making the air fresher, suitable for various indoor use such as home and office.

2. The present invention is provided with a transparent photocatalytic substrate group and a reflection unit. The optical path design is reasonable, and the light emitted by the light source can be returned to the transparent photocatalytic substrate through multiple reflections under the action of the reflection unit, thereby reducing the waste of energy. , which greatly increases the utilization rate of light energy and improves the purification efficiency without increasing the energy consumption of the light source.

Description of drawings

In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

1 is a schematic structural diagram of an air purification device provided in Embodiment 1 of the present invention;

FIG. 2 is a schematic structural diagram of an air purification device provided in Embodiment 2 of the present invention.

Icon: 1-reactor; 2-photocatalytic chamber; 3-air inlet; 4-air outlet; 5-micro-electrostatic filter; 6-active carbon filter; 7-transparent photocatalytic substrate; 8-light source; 9- reflection unit.

Detailed ways

The embodiments of the present invention will be described in detail below in conjunction with the embodiments and examples, but those skilled in the art will understand that the following embodiments and examples are only used to illustrate the present invention, and should not be regarded as limiting the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. If no specific conditions are specified, follow the general conditions or the conditions suggested by the manufacturer.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In a first aspect, in at least one embodiment, an air purification device is provided, comprising a reactor, and a transparent photocatalytic substrate group, a light source and a reflection unit disposed inside the reactor;

The transparent photocatalytic substrate group is composed of a plurality of transparent photocatalytic substrates arranged at intervals, and a plurality of the transparent photocatalytic substrates are alternately arranged to form a curved airflow channel for air circulation. The photocatalyst material is loaded on the chip;

The reflection unit is arranged in the light exit direction of the light source, and the reflection unit can reflect the light emitted by the light source to the transparent photocatalytic substrate.

Preferably, the reflection unit is arranged in the light emitting direction of the front and back sides of the light source.

It should be noted:

Herein, the transparent photocatalytic substrate means that the material of the photocatalytic substrate is a transparent material, and transparency generally refers to the property or ability of a substance to transmit light; the transparent photocatalytic substrate has a high transmittance to light or is transparent Powerful light. The transparent photocatalyst substrate is used as a carrier for supporting a photocatalyst, that is, a photocatalyst, which is transparent and penetrable, and can create the effect of high-power photocatalyst decomposing the effective area of organic pollutants in a small space, thereby increasing the utilization rate of light energy by the photocatalyst.

Herein, the staggered arrangement of a plurality of transparent photocatalytic substrates to form a curved airflow channel for air circulation means that the reactor has an airflow channel running through the reactor, and the airflow channel is a curved airflow channel. The gas flow channel is formed by staggered arrangement of a plurality of transparent photocatalytic substrates arranged in the reactor. By setting the curved airflow channel, the residence time of the air in the reactor can be increased, thereby effectively increasing the photocatalytic reaction time of the organic pollutant gas on the photocatalyst carrier, and efficiently removing various organic pollutants and microorganisms in the indoor air.

It can be understood that the "curved shape" is a non-linear shape, which is a shape with a certain shape and angle.

Herein, the reflecting unit refers to a reflecting member capable of reflecting the light emitted by the light source, for example, the light emitted by the light source is ultraviolet light, and the reflecting unit is the reflecting member capable of reflecting the ultraviolet light. The reflective unit is arranged in the direction of the light source light emission, which can prevent the light source light from leaking out and concentrate the light on the transparent photocatalytic substrate group, thereby reducing the waste of energy and increasing the utilization rate of light energy without increasing the energy consumption of the light source. , improve the photocatalytic efficiency.

The above-mentioned air purification device is mainly used indoors. It is a photocatalyst indoor air purification device. Through reasonable optical path design, the utilization rate of light energy by photocatalyst is increased, the photocatalytic efficiency is improved, and the volume of the device can be effectively reduced and the length of the device can be extended. Long service life, scientific and reasonable design, obvious air purification effect, making the air fresher, suitable for various indoor use such as home and office.

Unless otherwise defined or indicated, professional and scientific terms used herein have the same meanings as those familiar to those skilled in the art.

Herein, there is no particular limitation on the specific shape of the curved airflow channel, as long as it does not limit the purpose of the present invention; for example, various curved forms well known in the art can be designed.

In a preferred embodiment, the curved airflow channel is an "S"-shaped airflow channel, a "C"-shaped airflow channel, a zigzag-shaped airflow channel or a wave-shaped airflow channel.

It can be understood that the present invention does not have a special limitation on the specific shape and structure of the curved airflow channel, which includes but is not limited to the above-mentioned types, and also lists other similar curved airflow channels, such as V-shape, Z-shape, M-shape, etc. .

Preferably, the curved airflow channel is an "S" shaped airflow channel. The use of "S"-shaped air flow channels can better ensure the long-term retention of air in the reactor, increase the residence time of organic pollutants on the transparent photocatalytic substrate, so as to carry out more sufficient catalytic degradation, deodorization and purification reactions, etc. .

It should be noted that, herein, the above-mentioned curved shape, such as the S-shape, is only a schematic shape, that is, a similar general shape, and the actual airflow channel can also be a variation similar to the S-shape.

Here, there is no particular limitation on the specific types of the transparent photocatalytic substrate and photocatalytic material, as long as the purpose of the present invention is not limited; for example, nano-titanium dioxide materials well known to those skilled in the art can be used.

In a preferred embodiment, the transparent photocatalytic substrate is at least one of glass or transparent ceramics, preferably glass, more preferably tempered glass.

According to the present invention, the transparent photocatalytic substrate can be made of various transparent materials known in the art, such as glass, transparent ceramics, etc., preferably glass, more preferably tempered glass. The use of tempered glass as the carrier of the photocatalyst material not only has a wide range of sources, low price, not easy to age, good physical properties, long service life, high penetration rate of ultraviolet light, but also easy to load the photocatalyst material on it, such as The nano-titanium dioxide can be directly sintered on the tempered glass, or the nano-titanium dioxide can be firmly fixed on the glass by tempering, which is convenient for processing, has good bonding strength, is not easy to fall off, and is firm and reliable.

Preferably, the photocatalyst material is zinc oxide, nano-titanium dioxide or modified nano-titanium dioxide material.

It should be noted that the modified nano-titanium dioxide material refers to a mixture containing functionalized nano-titanium dioxide obtained by modifying the nano-titanium dioxide through surface modification or doping, mainly using nano-titanium dioxide as a matrix material. The excitation light of nano-titanium dioxide is ultraviolet light, and the excitation light can be moved to the visible light region through modification means such as doping.

Nano titanium dioxide material has the characteristics of high absorption rate of ultraviolet light, good photocorrosion resistance and chemical stability, strong redox ability, high photocatalytic activity, and strong adsorption to many organic pollutants. It can also play a further role in eliminating odor.

In a preferred embodiment, a plurality of the transparent photocatalytic substrates are arranged at equal or variable intervals, preferably at equal intervals;

Preferably, the distance between two adjacent transparent photocatalytic substrates is 3-15 cm, preferably 5-10 cm.

According to the present invention, a plurality of transparent photocatalytic substrates are arranged in the reactor, and these transparent photocatalytic substrates are preferably arranged in parallel and upright at equal intervals, which helps to make the light in the reactor more uniform and further improves the efficiency of the photocatalytic structure. Photocatalytic air purification efficiency.

It should be noted that the present invention does not limit the number of transparent photocatalytic substrates in the reactor too much, and a corresponding number of transparent photocatalytic substrates can be configured according to actual space, device size, and comprehensive cost.

The distance between two adjacent transparent photocatalytic substrates is 3-15cm, preferably 5-10cm, typical but non-limiting examples can be 3cm, 4cm, 5cm, 6cm, 7cm, 8cm, 9cm, 10cm, 11cm, 12cm, 13cm, 14cm or 15cm. The distance between two adjacent transparent photocatalytic substrates is not easy to be too large or too small, and a suitable substrate spacing helps to improve the utilization rate of the device and make the photocatalytic effect better.

In a preferred embodiment, an air inlet and an air outlet are respectively provided on both sides of the reactor, the light source is provided on the inner wall of the reactor close to the air inlet, and the light source is provided on the inner side wall of the reactor close to the air outlet. The reflection unit is provided on the inner side wall of the reactor.

Preferably, the emission wavelength of the light source matches the absorption wavelength of the photocatalyst material, and the light source includes at least one of a visible light LED light source or an ultraviolet LED light source, preferably an ultraviolet LED light source.

It can be understood that the light source is determined according to the photocatalyst material, and not only an ultraviolet light source, but also an available white light or a corresponding wavelength light source that responds to visible light can be used. For example, when the photocatalyst material is (nano) zinc oxide, a visible light source or an ultraviolet light source can be used, and when the photocatalyst material is nano-titanium dioxide, the ultraviolet light source is used. Ultraviolet LED light source is preferably used because ultraviolet light has the highest intrinsic absorption and absorption efficiency. Under the design of the device that does not leak light, ultraviolet light is the best.

Preferably, the reflecting unit is a reflecting mirror.

One side of the reflector is coated with a reflective coating, preferably an ultraviolet reflective coating; the reflective coating can be various coatings well known in the art, such as a polished aluminum layer or a polished molybdenum layer.

According to the present invention, the reactor has a casing, a photocatalytic cavity is arranged inside the casing, and the transparent photocatalytic substrate group, the light source and the reflection unit are all arranged inside the photocatalytic cavity. An air inlet and an air outlet are respectively provided on both sides of the housing (for example, the left and right sides), and the air enters the photocatalytic cavity from the air inlet, and then is discharged through the air outlet.

A light source is arranged on the inner wall of the reactor near the gas inlet, that is, a light source is arranged on the inner wall of the photocatalytic chamber on the gas inlet side; a reflection unit is arranged on the inner wall of the reactor near the gas outlet, that is, a light source is arranged on the inner wall of the reactor near the gas outlet. A reflection unit is arranged on the inner wall of the photocatalytic cavity. In this way, arranging the light source on the inner sidewall of the reactor near the gas inlet and arranging the reflection unit on the inner sidewall of the reactor near the gas outlet helps to improve the photocatalytic effect, and the air purification effect is obvious.

Preferably, the area of the ultraviolet LED light source is adapted to the cross-sectional area of the reflecting unit, and the ultraviolet LED light source and the reflecting unit are arranged relatively parallel. The photocatalytic effect can be improved and the air purification effect is obvious by adopting the setting in which the area of the LED ultraviolet lamp is the same size as that of the reflector and is relatively parallel.

It should be noted that the aforementioned adaptation may also be referred to as adaptation, matching or matching, that is, the sizes or dimensions of the two are equivalent or equivalent.

According to the present invention, the specific type of the ultraviolet LED light source is not particularly limited, and any type of commercially available ultraviolet LED lamp can be used. The selected UV LED light source needs to be determined according to the peak position of the absorption wavelength of the photocatalyst. The ultraviolet wavelength emitted by the ultraviolet LED light source needs to match the absorption wavelength of the photocatalyst material on the transparent photocatalytic substrate. The matching requirement is that the ultraviolet wavelength emitted by the light source and the effective absorption wavelength range of the photocatalyst material do not deviate from ±50nm.

The power of the UV LED light source needs to be selected according to the actual space, device size, and comprehensive cost. Generally, choosing a higher-power LED UV lamp is beneficial to improve the UV irradiance per unit area and reduce the volume of the reactor.

The use of ultraviolet LED lamps as the light source has the characteristics of small occupied volume, high integration, long service life, and helps to improve the long-term catalytic efficiency of the device.

According to the present invention, there is no particular limitation on the specific type of the reflection unit, as long as it does not limit the purpose of the present invention. For example, a reflective mirror, a polished aluminum layer or a polished molybdenum layer, etc. can be used, and a reflective mirror is preferably used. The ultraviolet light emitted by the ultraviolet LED lamp is reflected on the transparent photocatalytic substrate by a reflector, which prevents the leakage of the ultraviolet light, reduces the waste of energy, and has a high utilization rate of light energy.

Using a reflector as a reflector for reflecting ultraviolet light has the advantages of low cost, convenient installation, easy operation, simple structure and good reflecting effect.

In a preferred embodiment, the air purification device further comprises a filter;

The filter is arranged at the gas inlet of the reactor, and/or the filter is arranged at the gas outlet of the reactor.

According to the present invention, a filter is provided at the air inlet and/or the air outlet, that is, the device of the present invention further includes a filter, and the filter can be arranged at the air inlet, at the air outlet, or at the same time. Filters are preferably installed at the air inlet and air outlet, which can effectively remove dust and large particle pollutants, further improve the air purification effect, and prevent large particles from entering the interior of the photocatalytic chamber. , affecting the use of the device or affecting the photocatalytic efficiency.

Here, there is no particular limitation on the specific type of the filter, as long as it does not limit the purpose of the present invention; for example, a well-known activated carbon filter in the art can be used.

Preferably, a micro-electrostatic filter and an activated carbon filter are provided at the gas inlet of the reactor; and a micro-electrostatic filter is provided at the gas outlet of the reactor. In this way, such filters are arranged at the air inlet and the air outlet, which can effectively prevent dust or large particles in the gas from entering the photocatalytic cavity and cover the photocatalytic glass, thereby improving the photocatalytic efficiency.

Preferably, both the air inlet and the air outlet are provided with card slots, and the filter is installed in the card slots. In this way, it is convenient to replace various filters.

As a preferred embodiment of the present invention, the air purification device includes a reactor, a photocatalytic cavity is arranged inside the reactor, an air inlet and an air outlet are arranged on both sides of the reactor, and both the air inlet and the air outlet are provided with filter; the interior of the photocatalytic cavity is provided with a number of tempered photocatalytic glass, and these tempered photocatalytic glasses are staggered to form an "S"-shaped air flow channel; The side inner wall is provided with a corresponding reflector; that is, the LED ultraviolet lamp area is of the same size as the reflector and placed relatively in parallel; the air inlet and the air outlet are provided with several card slots, and the filter can be selectively inserted into the card slots; The filters are micro-electrostatic filters and activated carbon filters. The tempered photocatalytic glass is tempered glass loaded with titanium dioxide nanoparticles.

The photocatalytic air purification device of the present invention is provided with transparent tempered photocatalytic glass and a reflector, which can maximize the utilization of light energy; and is provided with an "S"-shaped air flow channel, which can effectively increase the photocatalytic reaction time and make air purification more efficient. Thorough; equipped with several filters, which can effectively prevent dust or large particles in the gas from entering the photocatalytic cavity and cover the photocatalytic glass to improve the photocatalytic efficiency; equipped with LED ultraviolet lamps, which can effectively reduce the volume of the device and extend the use of the device life. Compared with the traditional technology, the present invention has scientific and reasonable design and obvious air purification effect.

In a second aspect, an air purification system is provided in at least one embodiment, including the above air purification device.

According to the present invention, the air purification system includes an air purification device, and may also include other equipment known in the prior art, such as a fan or a fan, a control device, etc. The present invention does not make special restrictions on other equipment and connection relationships. The core of the air purification system is It consists of the air purifying device of the present invention.

It can be understood that the air purification system of the present invention and the above air purification device are based on the same inventive concept, and thus have at least the same advantages as the above air purification device, and the present invention will not be repeated here.

The present invention will be further described below with reference to specific embodiments and accompanying drawings.

Example 1

As shown in Figure 1, an air purification device includes a reactor 1, a photocatalytic chamber 2 is arranged inside the reactor 1, an air inlet 3 and an air outlet 4 are respectively provided on both sides of the reactor 1, and the air inlet 3 and There are filters at all 4 air outlets;

The transparent photocatalytic substrate group, the light source 8 and the reflection unit 9 inside the photocatalytic cavity 2; the transparent photocatalytic substrate group is composed of a plurality of transparent photocatalytic substrates 7 arranged at intervals. The staggered arrangement forms a curved airflow channel for air circulation, and each transparent photocatalytic substrate 7 is loaded with a photocatalyst material;

The reflection unit 9 is arranged in the light emitting direction of the light source 8 , and the reflection unit 9 can reflect the light emitted by the light source 8 to the transparent photocatalytic substrate 7 .

The curved airflow channel is an "S"-shaped airflow channel; the transparent photocatalytic substrate 7 is tempered glass; the photocatalytic material is nano-titanium dioxide; the light source 8 is an ultraviolet LED light source; and the reflection unit 9 is a reflector.

Further, a plurality of photocatalytic tempered glasses are arranged inside the photocatalytic chamber 2, and these tempered photocatalytic glasses are staggered to form an "S"-shaped airflow channel; The inner wall of the air port 4 is provided with a corresponding reflector; the LED ultraviolet lamp area is of the same size as the reflector and placed relatively parallel; a micro-electrostatic filter 5 and an activated carbon filter 6 are arranged at the air inlet 3, and a micro-electrostatic filter 5 and an activated carbon filter 6 are arranged at the air outlet 4. The micro-electrostatic filter 5; the air inlet 3 and the air outlet 4 are provided with several card slots, and the filter can be selectively inserted into the card slots.

The working principle and working process of the air purification device are as follows:

When in use, the unpurified air passes through the inlet of the reactor. Under the action of the micro-electrostatic filter and the activated carbon filter, the mixed dust and large particle pollutants are effectively removed, and then the small particle pollutants and the gas enter the light. The catalytic chamber, the photocatalyst material mounted on the transparent tempered glass is nano-titanium dioxide. Under the excitation of ultraviolet light emitted by the ultraviolet LED lamp, the small particles of pollutants and harmful gases are decomposed into carbon dioxide and water to purify the air. After the electrostatic filter, it is discharged through the air outlet.

Example 2

As shown in Figure 2, an air purification device includes a reactor 1, a photocatalytic chamber 2 is arranged inside the reactor 1, an air inlet 3 and an air outlet 4 are respectively provided on both sides of the reactor 1, and the air inlet 3 and There are filters at all 4 air outlets;

The difference between this embodiment and Embodiment 1 is that a micro-electrostatic filter 5 and an activated carbon filter 6 are arranged at the air inlet 3 , and an activated carbon filter 6 is arranged at the air outlet 4 .

Example 3

A kind of air purifying device, the difference with embodiment 1 is:

The photocatalyst material is zinc oxide, and the light source is a visible light LED light source.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (10)

1. an air purifying device, it is characterized in that, comprise reactor, and be arranged in the transparent photocatalytic substrate group, light source and reflection unit inside described reactor; The transparent photocatalytic substrate group is composed of a plurality of transparent photocatalytic substrates arranged at intervals, and a plurality of the transparent photocatalytic substrates are alternately arranged to form a curved airflow channel for air circulation. The photocatalyst material is loaded on the chip; The reflection unit is arranged in the light exit direction of the light source, and the reflection unit can reflect the light emitted by the light source to the transparent photocatalytic substrate. 2 . The air purification device according to claim 1 , wherein the curved airflow channel is an “S”-shaped airflow channel, a “C”-shaped airflow channel, a zigzag-shaped airflow channel, or a wave-shaped airflow channel. 3 . 3. The air purification device according to claim 1, wherein the transparent photocatalytic substrate is at least one of glass or transparent ceramics, preferably glass, more preferably tempered glass; Preferably, the photocatalyst material is zinc oxide, nano-titanium dioxide or modified nano-titanium dioxide material. 4. The air purification device according to claim 1, wherein a plurality of the transparent photocatalytic substrates are arranged at equal or variable intervals, preferably at equal intervals; Preferably, the distance between two adjacent transparent photocatalytic substrates is 3-15 cm, preferably 5-10 cm. 5. The air purification device according to any one of claims 1 to 4, wherein an air inlet and an air outlet are respectively provided on both sides of the reactor, on the inner side wall of the reactor close to the air inlet The light source is provided, and the reflection unit is provided on the inner side wall of the reactor close to the gas outlet; Preferably, the emission wavelength of the light source matches the absorption wavelength of the photocatalyst material, and the light source includes at least one of a visible light LED light source or an ultraviolet LED light source; Preferably, the reflecting unit is a reflecting mirror. 6 . The air purification device according to claim 5 , wherein the light source area is adapted to the cross-sectional area of the reflection unit, and the light source and the reflection unit are arranged in parallel with each other. 7 . 7. The air purification device of claim 5, further comprising a filter; The filter is arranged at the gas inlet of the reactor, and/or the filter is arranged at the gas outlet of the reactor. 8. The air purification device according to claim 7, wherein a micro-electrostatic filter and an activated carbon filter are provided at the air inlet of the reactor; And/or, a micro-electrostatic filter is provided at the gas outlet of the reactor. 9 . The air purification device according to claim 7 , wherein the air inlet and the air outlet are provided with card slots, and the filter is installed in the card slots. 10 . 10. An air purification system, characterized in that it comprises the air purification device and a fan according to any one of claims 1 to 9.