CN212855252U - Air purification device and air purification filter element - Google Patents
Air purification device and air purification filter element Download PDFInfo
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- CN212855252U CN212855252U CN202021495376.1U CN202021495376U CN212855252U CN 212855252 U CN212855252 U CN 212855252U CN 202021495376 U CN202021495376 U CN 202021495376U CN 212855252 U CN212855252 U CN 212855252U
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Abstract
The utility model discloses an air purification device, air purification filter core. The utility model discloses an adsorb catalysis and microwave concerted action in air purification, when making the air pass through the filter core, not only can high-efficient bacterium virus in the deaerate under the effect of microwave, gaseous pollutant (such as formaldehyde, Volatile Organic Compounds (VOCs), ozone etc.) in the effect high-efficient deaerate that can also utilize microwave reinforcing catalyst, can also utilize the microwave to make heat-generating body material heat up from the porous ceramic material in the activation filter core, make impurity such as particulate matter solve because of the pyrolysis carbonization leads to ventilating not smooth scheduling problem because of adhering to, avoid ozone, ultraviolet, remain active material in the air that processing methods such as plasma brought, and need not to replace filter equipment after the self-activation.
Description
Technical Field
The utility model relates to an air purification field. And more particularly, to an air cleaning apparatus, an air cleaning filter element.
Background
Indoor environments have a far greater impact on human health than outdoor environments, and as a result of research, adults spend 70-80% of their time indoors, and older people and children spend more than 90% of their time indoors. Therefore, the quality of the indoor environment is directly related to the health of people. Indoor air pollutants come from outdoors and indoors, outdoor air pollutants mainly come from outdoor particulate matters, ozone, industrial pollution sources, Volatile Organic Compounds (VOCs) and the like, the sources of the indoor air pollutants are various and the components are complex, and the indoor air pollutants are all sources of the indoor air pollutants such as used building materials, decorative materials, living goods, office equipment, activities of people and the like.
The indoor air pollutants are of various types, and mainly divided into particulate matters (mainly suspended particulate matters), gaseous pollutants (such as formaldehyde, Volatile Organic Compounds (VOCs), ozone and the like), and microorganisms (pathogenic bacteria, viruses and the like), and the pollutants, no matter the types or the number of the pollutants is increased, can cause a series of uncomfortable symptoms of people.
At present, three main means are provided for controlling indoor air pollutants, namely source control, ventilation treatment and tail end purification. The source control is to achieve the purposes of reducing the types of source pollutants and slowing down the release by controlling the manufacturing and treatment (such as accelerating the release of harmful substances by heat treatment, reducing the release rate after entering the room at the later stage and the like) of raw materials and improving the raw materials. The ventilation treatment is to dilute the concentration of indoor pollutants by natural ventilation, purification and ventilation and other ways. There are three main approaches to tip decontamination: adsorption (physisorption and chemisorption), chemical reactions (such as oxidation), catalytic oxidation (photocatalysis, plasma catalysis, thermocatalysis, and room temperature catalysis).
But the indoor air pollutants are various in types, low in concentration, part of the pollutants are stable in chemical property, and the pollutants are released continuously; meanwhile, the indoor space is limited, and the volume of the purification device is limited; the increase of indoor airtightness and the improvement of energy-saving requirements all put forward higher requirements on air purification. It is therefore also an opportunity to develop new materials in combination with new technologies to achieve a safe and effective removal of contaminants with a low energy consumption that continues.
Microwaves are electromagnetic waves that generate high frequency electric fields. When the microwave enters the medium, polar molecules in the medium, such as water, protein, nucleic acid and the like, change the polarity direction along with the frequency of the electromagnetic field, so that the molecules rotate and oscillate violently back and forth, and generate heat through mutual friction. Because the electromagnetic field has very high frequency (2450 MHz, which means that water molecules rotate 2415 hundred million times back and forth at 180 degrees in 1 s), the medium temperature is increased rapidly, and the polar molecules such as protein, nucleic acid and the like in the microorganism are denatured, and the protein and the physiological active substances in the microorganism are mutated or destroyed under the action of microwave thermal effect and non-thermal effect, so that the organism grows abnormally, and bacteria and viruses are killed.
Therefore the utility model discloses an adsorb catalysis and microwave concerted action in air purification, when making the air pass through filter core device, not only can high-efficient bacterium virus in the deaerate under the effect of microwave, gaseous pollutant (such as formaldehyde, Volatile Organic Compounds (VOCs), ozone etc.) in the effect high-efficient deaerate that can also utilize microwave reinforcing catalyst, can also utilize the microwave to make heat-generating body material heat up from the porous ceramic material among the activation filter core device, make impurity such as particulate matter solve because of adhering to and lead to not smooth scheduling problem of ventilation because of pyrolysis carbonization, avoid ozone, the ultraviolet, remain active material in the air that processing method such as plasma brought, and need not replacement filter equipment after the self-activation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an air purification device, air purification filter core.
The utility model discloses an air purification device specifically is a device of microwave action bacterium virus in ceramic filter core inactivation air, not only can high-efficiently get rid of the bacterium virus in the air under the effect of microwave, can also utilize the high-efficient gaseous pollutant (such as formaldehyde in the air of getting rid of the catalytic activity of microwave reinforcing catalyst, Volatile Organic Compounds (VOCs), ozone etc.), can also utilize microwave to make heat-generating body material heat up from the porous ceramic material among the activation filter core device, make impurity such as particulate matter solve because of the pyrolysis carbonization leads to ventilating not smooth scheduling problem because of adhering to, avoid ozone, ultraviolet, remain active material in the air that processing methods such as plasma brought, and then need not to replace filter equipment after the activation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
in a first aspect, the present invention provides an air purification device, including: the microwave cavity comprises an air purification filter element, a microwave cavity and a microwave source;
the air purification filter element is positioned in the microwave cavity; the microwave source is positioned outside the microwave cavity and acts on the microwave cavity; the microwave cavity comprises an air inlet and an air outlet;
the air purification filter element comprises a body which does not absorb microwave energy and an auxiliary body which absorbs microwave energy.
Further, the body which does not absorb microwave energy is porous ceramic; the auxiliary body for absorbing microwave energy is a microwave heating body.
Preferably, the air purification filter element further comprises a catalyst.
The utility model discloses an air purification device passes through under the effect of the pulse that the microwave source launches or direct current microwave, can carry out microwave sterilization virus killing to the air that gets into the air purification filter core from the air inlet, can also strengthen the high-efficient attitude pollutant (such as formaldehyde, Volatile Organic Compounds (VOCs), ozone etc.) of getting rid of catalytic performance of catalyst, can also utilize the microwave to make the microwave heat-generating body heat up from the porous ceramic in the activation filter core device, make impurity such as particulate matter solve because of the pyrolysis carbonization leads to ventilating not smooth scheduling problem because of adhering to, then need not to carry out filter equipment's replacement after the self-activation. The utility model discloses an air purification device's application scene includes but is not limited to: 1) purifying air of a building air conditioner and a fresh air system; 2) the indoor air purifier performs self-circulation air purification; 3) and (5) air purification treatment of the closed space.
According to the utility model discloses an air purification device, it is preferred, air purification device still includes temperature sensor closed loop control unit for the temperature of monitoring display air purification filter core.
Preferably, the temperature sensor closed-loop control unit comprises a power supply, a temperature sensor and a temperature display; the power provides the electric energy for temperature sensor and temperature monitor, temperature sensor is used for monitoring the temperature of air purification filter core, temperature monitor is used for showing the temperature of monitoring.
Preferably, the specific shape of the air purification filter element can be a cuboid or a cylinder, and the size of the air purification filter element can be designed and determined according to the size of the purification space.
Preferably, the microwave cavity is a metal sealing structure, wherein the size of the cavity is determined according to the size of the air purification filter element.
Preferably, the microwave sources include a power supply, a magnetron and a waveguide, wherein the power supply is connected with the magnetron, the magnetron is connected with the waveguide, and the number of the microwave sources is as follows: 1-10. As will be readily understood by those skilled in the art, during the specific installation of the microwave source, the installation location is asymmetrical due to the characteristics of the microwaves, otherwise the power will cancel each other out. For example, two are installed in the vertical direction in the embodiment.
Preferably, the power of the microwave source is: 0.5 KW-200 KW, frequency is: 300MHz to 300 GHz.
Preferably, the pore diameter of the porous ceramic is 100nm to 20 mm.
In a second aspect, the present invention provides an air purification filter element, which comprises a body not absorbing microwave energy and an auxiliary body absorbing microwave energy.
Specifically, the body which does not absorb microwave energy is porous ceramic; the auxiliary body for absorbing microwave energy is a microwave heating body.
Preferably, the air purification filter element comprises the following raw materials: ceramic aggregate, adhesive, microwave heating body material and catalyst;
the ceramic aggregate comprises a ceramic raw material, other additives and a pore-forming agent;
the weight percentage of the raw materials is as follows according to the total mass of the raw materials of 100 percent and the total mass of the raw materials of 100 percent: 5-45% of ceramic raw material, 1-25% of other additives, 1-15% of pore-forming agent, 20-50% of adhesive, 1-20% of microwave heating body material and 1-20% of catalyst.
The main material of the filter element of the utility model is porous ceramic material, which is porous reticular air permeable material with even space distribution and does not absorb microwave; the microwave heating body material is a polar material with microwave absorption performance, and can absorb microwave energy to generate heat, so that bacteria, viruses and the like are killed, and gaseous pollutants in air are efficiently removed under the action of the catalyst.
According to the utility model discloses an air purification filter core, it is preferred, ceramic raw materials include in diatomaceous earth pottery, kaolinite pottery, sepiolite pottery, zeolite pottery, montmorillonite pottery, attapulgite pottery, tourmaline pottery, wollastonite pottery, vermiculite pottery and the combination that meets more than two kinds of stone pottery.
Preferably, the pore-forming agent comprises one or a combination of more than two of chloride, charcoal, graphite and starch. Preferably, the chloride salts comprise NaCl, KCl and CaCl2One or a combination of two or more of them.
Preferably, the other additives comprise one or a combination of more than two of oxide, nitride and carbide; the oxide is typically aluminum oxide (Al)2O3) Magnesium oxide (MgO)2) Calcium oxide (CaO)2) Iron oxide (Fe)2O3) Ferroferric oxide (Fe)3O4) Silicon dioxide (SiO)2) Zirconium dioxide (ZrO)2) Etc.; the nitride is typically silicon nitride (Si)3N4) (ii) a The carbide is typically boron carbide (B)4C) And silicon carbide (SiC).
Preferably, the adhesive comprises a combination of two or more of 10% -50% of acrylic resin (PMMA), 10% -60% of polyvinyl alcohol (PVA), 10% -50% of polyvinyl butyral (PVB), 10% -60% of polypropylene (PP), 10% -80% of dibutyl phthalate (DBP), 10% -40% of Phenolic Resin (PR), 10% -70% of paraffin wax, and 20% -40% of stearic acid.
Preferably, the microwave heating element material comprises one or a combination of more than two of ferrite, metal or nonmetal doped ferrite and inorganic nonmetal polar materials.
Preferably, the catalyst can enhance the catalytic ability under the action of microwaves, and specifically comprises transition metal oxides, for example, the catalyst comprises ferric oxide, ferroferric oxide, titanium dioxide, copper oxide, cobaltous oxide, cobalt oxide, manganese dioxide, vanadium trioxide, and metal (Ag, Fe, Al, Zn, Cu, Cd, Zr, Ni) dopant or nonmetal (N, C, F, S) dopant or combination of more than two of codopants of each oxide.
Preferably, the particle size range of the microwave heating element material is as follows: 100 nm-200 μm.
Preferably, the particle size range of the catalyst is: 100 nm-200 μm.
Preferably, the porous ceramic material can be obtained by adding the microwave heating element material and the catalyst to a ceramic aggregate and co-sintering the mixture.
Preferably, the porous ceramic material can be added with the microwave heating element material and the catalyst simultaneously or uniformly or in a distribution manner on the basis of the sintered and formed porous ceramic material.
The porous ceramic material has high porosity, adjustable pore diameter and uniform distribution of microwave heating body material and catalyst.
In a third aspect, the present invention provides a method for preparing an air purification filter element, wherein the method comprises the following steps:
the method comprises the following steps: the porous ceramic material is obtained by adding the microwave heating element material and the catalyst into ceramic aggregate and sintering together.
The second method comprises the following steps: the porous ceramic material is added with microwave heating body material and catalyst simultaneously or uniformly on the basis of sintered and formed porous ceramic material.
The utility model has the advantages as follows:
(1) under the action of microwave, the air passing through the filter element is sterilized/disinfected efficiently, and the effective sterilization rate can reach more than 50%/time;
(2) compared with modes such as plasma, ozone, ultraviolet, photocatalyst and the like, the microwave synergistic catalysis method has high efficiency, no ozone, plasma and other active ingredients are left in the air, and no secondary pollution is generated;
(3) under the synergistic effect of microwave and catalysis, the catalytic activity of the catalyst is enhanced, so that the removal effect of organic gases (formaldehyde and the like) and particulate matters (PM2.5 and the like) and other pollutants in the air is enhanced, and the removal effect reaches 95.0-99.9%;
(4) can make impurity such as particulate matter attached to on the filter core thermal decomposition carbonization and get rid of under the microwave heating effect, realize the self-activation to porous ceramic material, realize the circulation recycle of material, need not change filtering material.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 shows a schematic structural view of an air cleaning apparatus.
Description of reference numerals:
1-an air inlet;
2-microwave cavity;
3-a microwave source;
4-air purification filter element;
5-air outlet;
6-temperature sensor closed-loop control unit.
Detailed Description
In order to make the technical solutions and advantages of the present invention clearer, the following will describe the embodiments of the present invention in further detail with reference to the accompanying drawings.
Example 1
The present embodiment provides an air cleaning apparatus, as shown in fig. 1, including: the microwave oven comprises an air purification filter element 4, a microwave cavity 2, a microwave source 3 and a temperature sensor closed-loop control unit 6.
The air purification filter element 4 is positioned in the microwave cavity 2; the microwave source 3 is positioned outside the microwave cavity 2 and acts on the microwave cavity 2; the microwave cavity 2 comprises an air inlet 1 and an air outlet 5.
The specific shape of the air purification filter element 4 is a cylinder, and can be a cuboid or the like, and the size of the air purification filter element can be designed and determined according to the size of the purification space.
The microwave cavity 2 is a metal sealing structure, wherein the size of the cavity is determined according to the size of the air purification filter element 4.
The temperature sensor closed-loop control unit 6 comprises a power supply, a temperature sensor and a temperature display; the power provides the electric energy for temperature sensor and temperature monitor, temperature sensor is used for monitoring the temperature of air purification filter core 4, temperature monitor is used for showing the temperature of monitoring.
The microwave source 3 comprises a power supply, a magnetron and a waveguide tube, wherein the power supply is connected with the magnetron, the magnetron is connected with the waveguide tube, the two microwave sources are vertically arranged, the microwave source with the power of 1KW and the frequency of 300MHz acts in the microwave cavity 2 to heat the air purification filter element 4 at the temperature of 25-120 ℃, the air entering from the air inlet 1 is effectively sterilized and virus-killed, and the catalyst in the functional carrier can be enhanced to efficiently remove gaseous pollutants (such as formaldehyde, Volatile Organic Compounds (VOCs), ozone and the like).
Due to the attachment of the particles and the like, the porous structure in the air purification filter element 4 can be blocked, the heating element material of the air purification filter element 4 is heated by microwave at 80-260 ℃, so that the attached particles are pyrolyzed, carbonized and removed, the air purification filter element 4 is activated, and the porous structure is restored again to maintain the efficient catalysis effect.
The air purification filter element 4 is prepared by the following steps:
respectively taking 55%, 10% and 5% of diatomite ceramic raw materials, alumina and charcoal in percentage by mass, and mixing to obtain diatomite ceramic aggregate; adding 25% of adhesive in mass percentage into the aggregate, wherein the adhesive comprises 40% of acrylic resin (PMMA), 30% of polyvinyl alcohol (PVA) and 30% of polyvinyl butyral (PVB), mixing, uniformly mixing, and then doping with 4% of titanium dioxide catalyst and 1% of ferric oxide microwave heating body material. The air purification filter element is prepared by uniformly mixing, injection molding to obtain a biscuit, degumming treatment and calcination, and has a uniform porous structure, and the catalyst and the microwave heating body are uniformly distributed.
In addition, as understood by those skilled in the art, the micro-volume high-temperature heating element material and the catalyst can be added simultaneously or uniformly or distributed and uniformly on the basis of the sintered and formed porous ceramic material in the preparation process. The utility model discloses do not do the restriction once more.
Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all the embodiments cannot be exhausted here, and all the obvious variations or changes that belong to the technical solutions of the present invention are still in the protection scope of the present invention.
Claims (10)
1. An air purification apparatus, characterized in that the air purification apparatus comprises: the microwave cavity comprises an air purification filter element, a microwave cavity and a microwave source;
the air purification filter element is positioned in the microwave cavity; the microwave source is positioned outside the microwave cavity and acts on the microwave cavity; the microwave cavity comprises an air inlet and an air outlet;
the air purification filter element comprises a body which does not absorb microwave energy and an auxiliary body which absorbs microwave energy.
2. The air purification apparatus of claim 1, wherein the body that does not absorb microwave energy is a porous ceramic; the auxiliary body for absorbing microwave energy is a microwave heating body.
3. The air purification apparatus of claim 1, further comprising a temperature sensor closed-loop control unit for monitoring and displaying the temperature of the air purification cartridge.
4. The air purification apparatus of claim 3, wherein the temperature sensor closed-loop control unit comprises a power supply, a temperature sensor, and a temperature display.
5. The air purification device according to claim 1, wherein the microwave sources comprise a power supply, a magnetron and a waveguide tube, wherein the power supply is connected with the magnetron, the magnetron is connected with the waveguide tube, and the number of the microwave sources is 1-10.
6. The air purification apparatus of claim 5, wherein the microwave source comprises two sources located in mutually perpendicular directions outside the microwave cavity.
7. The air cleaning device according to claim 2, wherein the pore size of the porous ceramic is 100nm to 20 mm.
8. An air purification filter element is characterized by comprising a body which does not absorb microwave energy and an auxiliary body which absorbs microwave energy;
the body which does not absorb microwave energy is porous ceramic; the auxiliary body for absorbing microwave energy is a microwave heating body.
9. The air purification filter element according to claim 8, wherein the pore size of the porous ceramic is 100nm to 20 mm.
10. The air purification cartridge of claim 8, wherein the air purification cartridge is rectangular or cylindrical in shape.
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| CN202021495376.1U CN212855252U (en) | 2020-07-24 | 2020-07-24 | Air purification device and air purification filter element |
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| CN202021495376.1U CN212855252U (en) | 2020-07-24 | 2020-07-24 | Air purification device and air purification filter element |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111871172A (en) * | 2020-07-24 | 2020-11-03 | 中国科学院理化技术研究所 | Air purification device, air purification filter element and preparation of air purification filter element |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111871172A (en) * | 2020-07-24 | 2020-11-03 | 中国科学院理化技术研究所 | Air purification device, air purification filter element and preparation of air purification filter element |
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