CN202757209U - Wall-hanging type particulate matter (PM) 2.5 air purifier - Google Patents

Abstract

The utility model discloses a wall-mounted PM2.5 air purification processor, which comprises an air inlet and an air outlet, the air inlet and the air outlet are respectively located at the two ends of the air purification processor, wherein the air purification process Inside the device, fans, nano-adsorption catalytic purification units, functional ultraviolet lamps, photocatalyst catalytic oxidation units, negative ion generators and PM2.5 filters are arranged in sequence from the air inlet to the air outlet. This device can collect and process PM2.5, and can sterilize and purify toxic and harmful substances such as HC, NOx, SO ₂ , CO, O ₃ , formaldehyde and benzene, so as to realize the integration of PM2.5, exhaust gas and bacteria and other toxic and harmful gases. purpose of purification.

Description

Wall-mounted PM2.5 air purification processor

technical field

The utility model belongs to an air purification system, in particular to a wall-mounted PM2.5 air purification processor.

Background technique

PM2.5 refers to particulate matter with a diameter less than or equal to 2.5 microns in the atmosphere, also known as particulate matter that can enter the lungs. Because of its small particle size, it is rich in a large amount of toxic and harmful substances, so it has a greater impact on human health and the quality of the atmospheric environment. PM2.5 represents the content of such particles per cubic meter of air, and the higher the value, the more serious the air pollution.

Air pollution in large-scale population movement and gathering places includes physical pollution, chemical pollution and biological pollution. Physical pollution refers to pollution caused by physical factors, such as electromagnetic radiation, noise, vibration, and unsuitable temperature, humidity, wind speed and lighting. Chemical pollution refers to the pollution caused by chemical substances, such as formaldehyde, benzene series, ammonia and suspended particles. Biological pollution refers to pollution caused by biological pollution factors, mainly including bacteria, fungi, pollen, viruses, and organic components of organisms. There are many types of indoor air pollutants. Generally, they can be divided into two categories: suspended particulate matter and gaseous pollutants according to their state of existence. The former refers to solid and liquid particles suspended in the air, including inorganic and organic particles, microorganisms, and biosols; the latter refers to pollutants that exist in molecular states, including inorganic, organic compounds, and radioactive substances. Among them, due to the small particle size, PM2.5 particles are very easy to carry a large amount of toxic and harmful substances such as bacteria and viruses, and they stay in the air for a long time and have a long transportation distance. After being inhaled into the human body, they will directly enter the bronchi and interfere with the lungs. gas exchange, causing diseases including asthma, bronchitis and cardiovascular disease, and can also enter the blood through the bronchi and alveoli, where bacteria, viruses and other harmful gases, heavy metals, etc. dissolve in the blood, which is more harmful to human health big. In addition, PM2.5 particles will also have a serious impact on the environment. Because the particles below 1 micron in the particulate matter settle slowly, they remain in the atmosphere for a long time, and can be blown to far away places under the action of atmospheric dynamics. Therefore, particulate matter pollution often affects a large area, and even becomes a global problem. Particles with a particle size of 0.1 to 1 micron have a wavelength similar to that of visible light and have a strong scattering effect on visible light. This is the main cause of reduced atmospheric visibility. Sulfuric and nitric acid particles produced by the chemical conversion of sulfur dioxide and nitrogen oxides are the main cause of acid rain. A large amount of particulate matter falls on plant leaves and affects plant growth, and falls on buildings and clothes to stain and corrode. A large amount of particulate matter in the atmosphere interferes with the radiation of the sun and the ground, thereby affecting the regional and even global climate.

The quality of air quality in typical areas such as subway stations, high-speed rail waiting halls, airport terminals, tunnels, carriages, hospitals, cultural relics protection, museums, libraries, exhibition halls, art galleries, etc. , is directly related to the health of the relevant personnel. At present, with the popularization of central air-conditioning in indoor construction, some air-conditioning systems with unscientific design and lax operation and management not only do not help to improve the indoor air environment, but may also become the source and transmission route of indoor air pollutants. First of all, due to the extensive use of central air-conditioning in public places, aerosol pollutants (particles, bacteria, viruses) accumulate in local dead corners due to unreasonable airflow organization in air-conditioned rooms, forming indoor air pollution; second, the air-conditioning system collects indoor air After the air is treated, the air is sent back to the room. In this process, the pollutants in individual air-conditioned rooms and the air-conditioning system itself may be rapidly diffused to other rooms, so that the air-conditioning system becomes a medium for spreading and diffusing pollutants. Studies have shown that indoor air quality has a lot to do with building ventilation and air-conditioning systems. If the ventilation and air-conditioning system is not designed, operated or managed properly, it will become a source of pollution to pollute indoor air and endanger human health. American researchers analyzed the problem of indoor air pollution in more than 1,000 buildings, and found that more than 50% of them are due to the poor filtering effect of the building's air-conditioning system. The Canadian Environmental Sanitation Organization found that 68% of human diseases are caused by indoor air pollution, and the disease The rate is increasing year by year. From February to April 2004, the Ministry of Health of my country organized the supervision and inspection of the sanitation status of centralized air-conditioning and ventilation systems in public places across the country. A total of 937 public places with centralized air-conditioning facilities in more than 60 cities across the country were randomly inspected, including hotels, restaurants, large shopping malls, and supermarkets. , 5600 samples were tested. Among them, 441 central air-conditioning and ventilation systems were severely polluted, accounting for 47.1% of the total number of sampling inspections, 438 were moderately polluted, accounting for 46.7% of the total number of sampling inspections, and 58 were qualified, accounting for 6.2% of the total number of sampling inspections. In 2004, the Beijing Municipal Health Bureau conducted spot checks on the sanitation of central air conditioners in 80 public places in Beijing, and 90% of the check results were seriously polluted.

Therefore, the application of wall-mounted PM2.5 air purification processors in large population flow and gathering places can not only bring fresh "natural wind" to this place, so that people can have a fresh and clean living environment, but also can Reduce the occurrence of mass public health incidents caused by excessive bacteria and microorganisms in the air, decompose harmful substances in time, deliver fresh air, reduce secondary damage caused by disasters to people, provide a strong guarantee for the safety of public places, and contribute to the construction of civilization Harmonious society has very important significance and value.

At present, people only physically dilute toxic and harmful gases such as PM2.5 dust, bacteria, motor vehicle exhaust (exhaust gas), ozone, and VOC in large-scale population movements and gathering places through ventilation, etc., and have not fundamentally solved the purification process. question.

Contents of the invention

The purpose of this utility model is to improve or make up for the deficiencies of the existing dust purification technology and treatment system, to develop a dust collector that collects and processes PM2.5, sterilizes, purifies HC, NOx, SO ₂ , CO, O ₃ , formaldehyde and benzene Wall-mounted PM2.5 air purification processor for toxic and harmful substances.

The technical scheme of the utility model is:

A wall-mounted PM2.5 air purification processor, which includes an air inlet and an air outlet, the air inlet and the air outlet are located at both ends of the air purification processor, wherein inside the air purification processor, from From the air inlet to the air outlet, there are fan, nano-adsorption catalytic purification unit, functional ultraviolet lamp, photocatalyst catalytic oxidation unit, negative ion generator and PM2.5 filter in sequence.

The inlet of the fan communicates with the air inlet, and the outlet of the fan leads to the nano-adsorption catalytic purification unit.

After the nano-adsorption catalytic purification unit, there is a functional ultraviolet lamp and a photocatalyst catalytic oxidation unit, which further removes CO and kills various bacteria by using the coordinated action of the ultraviolet lamp and photocatalyst.

The photocatalyst catalytic oxidation unit is equipped with a negative ion generator, and the gas purified in the previous steps cooperates with the negative ion generator to generate negative ions through the PM2.5 filter and discharged through the air outlet.

The PM2.5 filter screen is arranged at the air outlet. The PM2.5 filter is a broad-spectrum bactericide modified polypropylene melt-blown electrostatic electret composite filter paper or HEPA filter paper.

The photocatalyst in the photocatalyst catalytic oxidation unit includes a layer of honeycomb photocatalyst filter and two layers of PM2.5 filter with nano-titanium dioxide immobilized on the surface, which can effectively catalyze the oxidation of CO and kill bacteria such as Staphylococcus albus. The honeycomb photocatalyst filter screen can be made of aluminum honeycomb, its aperture is 0.1-0.3mm, the thickness of the filter screen is 0.5-1mm, the content of solid-loaded activated carbon is 40-45, and its surface is sprayed with nano-titanium dioxide.

The nano-adsorption material in the nano-adsorption catalytic purification unit is a nano-adsorption material whose surface is coated with precious metals and/or rare earth elements. The surface of the nano-adsorption material is coated with different proportions of active catalysts such as palladium, rhodium, platinum and other precious metals and/or rare earth elements cerium, rubidium and other metal oxides of copper and manganese, which can effectively purify HC, NOx, SO ₂ , O ₃ , CO , formaldehyde and benzene and other toxic and harmful substances.

This wall-mounted PM2.5 air purification processor can collect and process PM2.5, and can sterilize and purify toxic and harmful substances such as HC, NOx, SO ₂ , CO, O ₃ , formaldehyde and benzene, so as to achieve PM2.5, The purpose of integrated purification of toxic and harmful gases such as exhaust gas and bacteria. This device is suitable for subway stations, high-speed rail waiting halls, airport terminals, tunnels, carriages, hospitals, cultural relics protection, museums, libraries, exhibition halls, art galleries, civil air defense, national defense tunnels, shopping malls, hotels, entertainment venues, service industries , Biological, food, pharmaceutical, manufacturing, chemical, textile, laboratory, office building, office environment and home and other public places where the population gathers.

Description of drawings

Fig. 1 is a schematic structural view of an air purification processor of the present invention.

Fig. 2 is a three-dimensional perspective view of an air purifying processor of the present invention.

Fig. 3 is a schematic view of the surface structure of an air purification processor of the present invention.

In the figure, 1. Air inlet, 2. Fan, 3. Nanomaterial adsorption unit, 4. Functional ultraviolet lamp, 5. Photocatalyst catalytic oxidation unit, 6. Negative ion generator, 7. PM2.5 filter, 8. Air outlet .

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

As shown in the figure, this wall-mounted PM2.5 air purification processor includes air inlet 1, fan 2, nano-adsorption catalytic purification unit 3, functional ultraviolet lamp 4, photocatalyst catalytic oxidation unit 5, negative ion generator 6, PM2.5 Filter screen 7 and air outlet 8. Wherein the air inlet 1 and the air outlet 8 are respectively located at the two ends of the air purification processor, and inside the air purification processor, the aforementioned fan 2 and the nano-adsorption catalytic purification unit 3 are sequentially installed from the air inlet 1 to the air outlet 8 , Functional ultraviolet lamp 4, photocatalyst catalytic oxidation unit 5, negative ion generator 6 and PM2.5 filter screen 7.

The inlet of the fan 2 communicates with the air inlet 1 , and the outlet of the fan 2 leads to the nano-adsorption catalytic purification unit 3 . The power provided by the fan 2 makes the air to be processed enter the processor from the air inlet 1, and then be discharged through the air outlet 8 after being processed. The PM2.5 filter screen 7 is arranged at the air outlet 8 to ensure the treatment effect of PM2.5.

In specific implementation, the appearance of the device of the present invention can be a cuboid, and the basic dimensions are: length × width × height = 600mm × 200mm × 250mm, the size can be adjusted according to the actual situation, and the dust removal unit can control the filtration area by increasing or decreasing the number of filter screens , HC, NOx, SO ₂ , O ₃ , various organic matter, bacteria and CO adsorption, killing and catalytic purification unit can control the treatment effect through the number, ratio and arrangement of nano-adsorption materials, nano-titanium dioxide and ultraviolet lamps. This embodiment adopts a stainless steel shell, length × width × height = 600mm × 200mm × 250mm, the PM2.5 filter screen is a broad-spectrum bactericide modified HEPA filter paper, and the surface of the nano-adsorption material is coated with different proportions of active catalyst palladium and Oxides of cerium and metallic copper and manganese. The modified honeycomb photocatalyst adopts aluminum honeycomb, the aperture is 0.3mm, the thickness of the photocatalyst filter is 0.5mm, the content of solid-loaded activated carbon is 40%, the surface is sprayed with nano-titanium dioxide, the power of the ultraviolet lamp is 15w, the wavelength is 365nm, 2 and the power is 15w, the wavelength is 254nm, 2 pieces.

The device is installed on the indoor wall or other brackets. When it is activated, the dusty air in the air is sucked into the air inlet by the fan and then sent directly to the nano-material adsorption unit to purify CO, HC, NOx, SO ₂ , O ₃ , formaldehyde and Toxic and harmful substances such as benzene, then enter the functional ultraviolet lamp and photocatalyst catalytic oxidation unit, use the coordination of ultraviolet lamp and photocatalyst to further remove CO, kill various bacteria, and the purified gas cooperates with the negative ions produced by the negative ion generator to pass through PM2. 5. The filter screen is discharged through the air outlet, so as to achieve the purpose of integrated purification of toxic and harmful gases such as PM2.5, exhaust gas, bacteria, ozone and VOC.

Claims (6)

1. A wall-mounted PM2.5 air purification processor, which includes an air inlet (1) and an air outlet (8), and the air inlet (1) and air outlet (8) are respectively located at the air purification processor Both ends, characterized in that inside the air purification processor, fans (2), nano-adsorption catalytic purification units (3), and functional ultraviolet lamps (4) are arranged in sequence from the air inlet (1) to the air outlet (8) , photocatalyst catalytic oxidation unit (5), negative ion generator (6) and PM2.5 filter screen (7). 2. The wall-mounted PM2.5 air purification processor according to claim 1, characterized in that the inlet of the fan (2) communicates with the air inlet (1), and the outlet of the fan (2) leads to the nano Adsorption catalytic purification unit (3). 3. The wall-mounted PM2.5 air purification processor according to claim 1, characterized in that the PM2.5 filter (7) is arranged at the air outlet (8). 4. The wall-mounted PM2.5 air purification processor according to claim 1 or 3, characterized in that the PM2.5 filter (7) is a broad-spectrum bactericide modified polypropylene melt-blown electrostatic electret composite Filter paper or HEPA filter paper. 5. The wall-mounted PM2.5 air purification processor according to claim 1, characterized in that the photocatalyst in the photocatalyst catalytic oxidation unit (5) includes a layer of honeycomb photocatalyst filter screen and two layers of surface-mounted nano Titanium dioxide PM2.5 grade filter. 6. The wall-mounted PM2.5 air purification processor according to claim 1, characterized in that the nano-adsorption material in the nano-adsorption catalytic purification unit (3) is a nano-material coated with precious metals and/or rare earth elements. Adsorbent material. the

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