CN111991937A - Air purification device based on online virus killing of multilevel filtration - Google Patents
Air purification device based on online virus killing of multilevel filtration Download PDFInfo
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- CN111991937A CN111991937A CN202010945783.6A CN202010945783A CN111991937A CN 111991937 A CN111991937 A CN 111991937A CN 202010945783 A CN202010945783 A CN 202010945783A CN 111991937 A CN111991937 A CN 111991937A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
- B01D46/0008—Two or more filter elements not fluidly connected positioned in the same housing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultra-violet radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0028—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions provided with antibacterial or antifungal means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
- B01D46/0041—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
- B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
- B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
- B01D46/645—Protecting screens at filter inlet or outlet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/88—Replacing filter elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/10—Apparatus features
- A61L2209/14—Filtering means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses an air purification device based on multi-level filtering online disinfection, which comprises a shell, wherein an opening and closing door is arranged on the air inlet side of the shell, a hollowed-out isolation plate is arranged on the air outlet side of the shell, a piston air compressor, a primary filtering system, a middle-level filtering system, an ultraviolet disinfection device and a high-level filtering system are sequentially arranged between the opening and closing door and the hollowed-out isolation plate, airflow sequentially enters the primary filtering system, the middle-level filtering system and the high-level filtering system, and the primary filtering system is used for adsorbing harmful gas and water vapor; the middle-stage filtering system is used for removing dust, aerosol and the like in the air; the ultraviolet disinfection device has the advantages of simple structure and ingenious design, can effectively remove microorganisms, avoids the propagation of the microorganisms, and has high application value.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to an air purification device based on multi-level filtration online disinfection.
Background
The air purification technology is a comprehensive technology for pursuing a clean environment of indoor air, and mainly achieves the purposes of cleaning and purifying the air by adsorbing and filtering the air, removing small-particle pollutants in the air and finally discharging the purified air from an exhaust port. However, the existing air purification devices can not meet the requirements of people for removing harmful microorganisms, and although the existing air purification devices adopt ozone oxidation, ultraviolet disinfection and other means to kill the harmful microorganisms, the technologies require that microorganisms exist in an ultraviolet or ozone environment for a certain time, so that the technology needs to be improved for removing the harmful microorganisms, particularly viruses, and the existing air purifier has an integral shell, so that the installation and maintenance of the filtering equipment inside the existing air purifier are very difficult, and the use cost of the equipment is increased.
Disclosure of Invention
The invention aims to provide an air purification device based on multi-level filtration online disinfection, which aims to solve the problems in the prior art, enable a ventilation system to be used efficiently and safely and build a healthier working and living environment.
In order to achieve the purpose, the invention provides the following scheme: the invention provides an air purification device based on multi-level filtering online disinfection, which comprises a shell, wherein an opening and closing door is arranged on the air inlet side of the shell, a hollowed-out isolation plate is arranged on the air outlet side of the shell, and a piston air compressor, a primary filtering system, a middle-level filtering system, an ultraviolet disinfection device and a high-level filtering system are sequentially arranged between the opening and closing door and the hollowed-out isolation plate.
Preferably, the bottom of the primary filtering system, the bottom of the intermediate filtering system and the bottom of the high-grade filtering system are all provided with detachable openings penetrating through the shell, the openings are detachably connected with cover bodies, and sealing rings are arranged between the cover bodies and the openings.
Preferably, the primary filter system comprises a first filter plate, a second filter plate and an activated carbon filling layer, wherein the activated carbon filling layer is positioned between the first filter plate and the second filter plate.
Preferably, the medium-stage filtration system comprises a first screen, a second screen and a first filter membrane, the first filter membrane being located between the first screen and the second screen.
Preferably, the advanced filtration system comprises a third filter screen, a fourth filter screen and a second filter membrane, the pore size of the second filter membrane is not larger than that of the first filter membrane, and the second filter membrane is positioned between the third filter screen and the fourth filter screen.
Preferably, the inner diameter of the first filter membrane is 5um, and the inner diameter of the second filter membrane is 30 nm.
Preferably, the ultraviolet disinfection device is fixedly arranged at the top of the inner wall of the shell and comprises an ultraviolet lamp and a lampshade, and the top end of the ultraviolet disinfection device is provided with a maintenance opening penetrating through the shell.
Preferably, the lampshade penetrates through or is arranged above the middle-stage filtering system and the high-stage filtering system.
Preferably, the first filter membrane comprises an inner layer structure, an outer layer structure and a filter membrane filling layer, the filter membrane filling layer is located between the inner layer structure and the outer layer structure, the inner layer structure and the outer layer structure are both formed by wrapping melt-blown cotton with non-woven fabrics, and the second filter membrane is identical to the first filter membrane structure.
Preferably, the shell is provided with a digital motor, and the opening and closing door and the piston air compressor are electrically connected with the digital motor.
The invention discloses the following technical effects: the air inlet side of the air filter is provided with a controllable opening and closing door which is matched with a piston air compression device, so that the air flow rate is controlled and the filtering effect is optimized; the gas flow sequentially enters a primary filtering system, a middle-grade filtering system and a high-grade filtering system, and the primary filtering system is used for adsorbing harmful gas and water vapor; the middle-stage filtering system is used for removing dust, aerosol and the like in the air; the ultraviolet disinfection device has the advantages of simple structure and ingenious design, can effectively remove microorganisms, avoids the propagation of the microorganisms, and has high application value.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in 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 inventive exercise.
FIG. 1 is a schematic structural diagram of an air purification device based on multi-stage filtration online disinfection of the present invention;
FIG. 2 is a schematic diagram of the primary filtration system of the present invention;
FIG. 3 is a schematic diagram of a mid-stage filtration system according to the present invention;
FIG. 4 is a schematic diagram of the high-level filtration system of the present invention;
FIG. 5 is a schematic view of the UV sterilizer of the present invention;
in the figure: the device comprises an opening and closing door 1, a first filter plate 2, an activated carbon filling layer 3, a second filter plate 4, a first filter screen 5, a first filter membrane 6, a second filter screen 7, an ultraviolet disinfection device 8, a third filter screen 9, a second filter membrane 10, a fourth filter screen 11, a hollow isolation plate 12, a piston air compressor 13, a cover body 14, a shell body 15, a maintenance opening 17, a digital motor 18, an ultraviolet lamp 19 and a lamp shade 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1-5, the invention provides an air purification device based on multi-level filtering online disinfection, which comprises a shell 15, wherein an opening and closing door 1 is arranged on the air inlet side of the shell 15, a hollow isolation plate 12 is arranged on the air outlet side of the shell 15, and a piston air compressor 13, a primary filtering system, a middle-level filtering system, an ultraviolet disinfection device 8 and a high-level filtering system are sequentially arranged between the opening and closing door 1 and the hollow isolation plate 12.
In a further optimized scheme, the bottoms of the primary filtering system, the middle-stage filtering system and the high-stage filtering system are respectively provided with a detachable opening penetrating through the shell 15, so that the filling materials and the filter membranes can be conveniently replaced, and the air purification effect can be kept at a higher level for a long time; the opening is detachably connected with a cover body 14, and a sealing ring is arranged between the cover body 14 and the opening to prevent dust from entering.
According to the further optimization scheme, the primary filtering system comprises a first filtering plate 2, a second filtering plate 4 and an active carbon filling layer 3, the active carbon filling layer 3 is located between the first filtering plate 2 and the second filtering plate 4, the first filtering plate 2 and the second filtering plate 4 are structurally fixed by adopting steel plates with holes, holes of the steel plates are uniformly formed, the centers of the openings are on the same horizontal line, and gas is uniformly distributed through the air holes, so that the problem that the filtering effect is not ideal due to inconsistent local airflow input into the water filter caused by non-uniform gas can be greatly reduced; the activated carbon filling layer 3 is made of non-woven fabric wrapped melt-blown cotton filled activated carbon, the number of the activated carbon layers can be increased or decreased according to needs, and the activated carbon filling layer is used for adsorbing harmful gases in the air, such as formaldehyde, aerosol and the like.
According to a further optimized scheme, the activated carbon filling in the activated carbon filling layer 3 can be replaced by other environment-friendly materials with an adsorption function, and the purpose is to select a proper purification material according to the types of harmful gases in the air and improve the air purification effect.
Further optimize the scheme, the middle-level filtration system includes first filter screen 5, second filter screen 7 and first filter membrane 6, first filter membrane 6 is located between first filter screen 5 and the second filter screen 7, 6 internal diameters of first filter membrane are 5um for get rid of dust and the solid tiny particle in the air.
Further optimize the scheme, advanced filtration system includes third filter screen 9, fourth filter screen 11 and second filter membrane 10, the aperture of second filter membrane 10 is not more than the aperture of first filter membrane 6, second filter membrane 10 is located between third filter screen 9, fourth filter screen 11, the internal diameter of second filter membrane 10 is 30nm for harmful microorganism such as bacterium, virus in the drive-off air.
Further optimization scheme, ultraviolet virus killing device 8 is fixed to be set up at 15 inner walls of the housing top, ultraviolet virus killing device 8 includes ultraviolet lamp 19 and lamp shade 20, and lamp shade 20 is trapezoidal design, can avoid the wind pressure to cause ultraviolet lamp 19's damage on the one hand, and on the other hand can shine the area maximize with ultraviolet lamp 19, ultraviolet virus killing device 8's top is seted up and is run through casing 15's maintenance mouth 17, is convenient for maintain ultraviolet lamp 19.
In a further optimized scheme, the lampshade 20 penetrates through the middle-stage filtering system and the high-stage filtering system or is arranged above the middle-stage filtering system and the high-stage filtering system, so that the ultraviolet lamp 19 can conveniently perform ultraviolet disinfection on air among the primary filtering system, the middle-stage filtering system and the high-stage filtering system, microorganisms can be ensured to exist for a long time under an ultraviolet irradiation environment, and microorganisms retained on filter membranes of the middle-stage filter and the high-stage filter can be effectively killed.
According to a further optimization scheme, the first filter membrane 6 comprises an inner layer structure, an outer layer structure and a filter membrane filling layer, the filter membrane filling layer is located between the inner layer structure and the outer layer structure, the inner layer structure and the outer layer structure are formed by nonwoven fabric wrapped meltblown cotton, and the second filter membrane 10 is the same as the first filter membrane 6 in structure and is convenient to install or take out from the bottom opening of the middle-grade filter system and the high-grade filter system.
According to the further optimization scheme, the shell 15 is provided with the digital motor 18, the opening and closing door 1 and the piston air compressor 13 are electrically connected with the digital motor 18, the opening and closing door 1 of the air inlet and the piston of the piston air compressor 13 are synchronously pushed and pulled, the opening and closing door 1 is closed when the piston is pushed in, the opening and closing door 1 is opened when the piston is pulled out, and the air flow rate is controlled and meanwhile the filtering effect is optimized.
In a further optimized scheme, sound absorption materials are wrapped on the inner side of the area where the digital motor 18 and the piston air compressor 13 are located, and noise generated when the multi-level filtering online disinfection air purification device operates is reduced.
Further optimization scheme, the fretwork division board 12 of air-out side adopts the metal mesh, and the outside parcel detachable dust screen for prevent that the dust of air-out side department from suck-back.
In a further optimized scheme, the shell 15 can be adjusted according to the installation place, and can be set to be cylindrical if installed on a ventilation pipeline; if the air conditioner is arranged at the air outlet of the central air conditioner, the air conditioner can be arranged to be a cuboid.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. The utility model provides an air purification device based on online virus killing of multilevel filtration which characterized in that: including casing (15), casing (15) air inlet side is provided with door (1) that opens and shuts, casing (15) air-out side is provided with fretwork division board (12), it has set gradually piston air compressor (13), elementary filtration system, middle-level filtration system, ultraviolet virus killing device (8), senior filtration system to open and shut between door (1) and fretwork division board (12).
2. The air purification device based on multi-level filtering online disinfection of claim 1, wherein: the bottom of the primary filtering system, the bottom of the intermediate filtering system and the bottom of the high-grade filtering system are all provided with detachable openings penetrating through the shell (15), the openings are detachably connected with the cover body (14), and sealing rings are arranged between the cover body (14) and the openings.
3. The air purification device based on multi-level filtering online disinfection of claim 1, wherein: the primary filtering system comprises a first filtering plate (2), a second filtering plate (4) and an activated carbon filling layer (3), wherein the activated carbon filling layer (3) is positioned between the first filtering plate (2) and the second filtering plate (4).
4. The air purification device based on multi-level filtering online disinfection of claim 1, wherein: the middle-stage filtering system comprises a first filtering screen (5), a second filtering screen (7) and a first filtering screen (6), wherein the first filtering screen (6) is positioned between the first filtering screen (5) and the second filtering screen (7).
5. The air purification device based on multi-level filtering online disinfection of claim 4, wherein: advanced filtration system includes third filter screen (9), fourth filter screen (11) and second filter membrane (10), the aperture of second filter membrane (10) is not more than the aperture of first filter membrane (6), second filter membrane (10) are located between third filter screen (9), fourth filter screen (11).
6. The air purification device based on multi-level filtering online disinfection of claim 5, wherein: the internal diameter of the first filter membrane (6) is 5um, and the internal diameter of the second filter membrane (10) is 30 nm.
7. The air purification device based on multi-level filtering online disinfection of claim 1, wherein: the ultraviolet sterilizing device (8) is fixedly arranged on the top of the inner wall of the shell (15), the ultraviolet sterilizing device (8) comprises an ultraviolet lamp (19) and a lampshade (20), and a maintenance opening (17) penetrating through the shell (15) is formed in the top end of the ultraviolet sterilizing device (8).
8. The air purification device based on multi-level filtering online disinfection of claim 7, wherein: the lampshade (20) penetrates through the middle-stage filtering system and the high-stage filtering system or is arranged above the middle-stage filtering system and the high-stage filtering system.
9. The air purification device based on multi-level filtering online disinfection of claim 5, wherein: the first filter membrane (6) comprises an inner layer structure, an outer layer structure and a filter membrane filling layer, the filter membrane filling layer is located between the inner layer structure and the outer layer structure, the inner layer structure and the outer layer structure are formed by melt-blown cotton wrapped by non-woven fabrics, and the second filter membrane (10) is identical to the first filter membrane (6) in structure.
10. The air purification device based on multi-level filtering online disinfection of claim 1, wherein: the shell (15) is provided with a digital motor (18), and the opening and closing door (1) and the piston air compressor (13) are electrically connected with the digital motor (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010945783.6A CN111991937A (en) | 2020-09-10 | 2020-09-10 | Air purification device based on online virus killing of multilevel filtration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010945783.6A CN111991937A (en) | 2020-09-10 | 2020-09-10 | Air purification device based on online virus killing of multilevel filtration |
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| CN111991937A true CN111991937A (en) | 2020-11-27 |
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| CN202010945783.6A Pending CN111991937A (en) | 2020-09-10 | 2020-09-10 | Air purification device based on online virus killing of multilevel filtration |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112892106A (en) * | 2021-02-03 | 2021-06-04 | 抚顺罕王傲牛矿业股份有限公司 | Mining ventilation device with air purification structure and purification method |
| CN113304414A (en) * | 2020-12-18 | 2021-08-27 | 中国矿业大学 | Virus filtering system, medical protective mask and negative pressure isolation cabin |
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| CN211262842U (en) * | 2019-11-11 | 2020-08-14 | 辽宁辉华技术服务有限公司 | Portable dust sampling equipment |
| CN210097209U (en) * | 2019-11-22 | 2020-02-21 | 北京洛卡环保技术有限公司 | Denitration reactor ash removal anti-blocking device |
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