CN109127139A - Vehicles guest room air disinfection dust removal method and its device - Google Patents
Vehicles guest room air disinfection dust removal method and its device Download PDFInfo
- Publication number
- CN109127139A CN109127139A CN201810776981.7A CN201810776981A CN109127139A CN 109127139 A CN109127139 A CN 109127139A CN 201810776981 A CN201810776981 A CN 201810776981A CN 109127139 A CN109127139 A CN 109127139A
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- Prior art keywords
- plate
- cathode
- dedusting
- anode
- sterilization
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
-
- 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
Abstract
Vehicles guest room air disinfection dust-extraction unit, including plate type electrode, anode sterilization dedusting plate, cathode sterilize dedusting plate；Wherein plate type electrode includes positive electrode plate, the DC voltage electrode of positive electrode plate, negative electrode outline border, the DC voltage cathode of negative electrode outline border, anode sterilization dedusting plate and cathode sterilization dedusting plate；Anode sterilization dedusting plate includes that anode sterilizes dedusting board supporting structure, muti-piece anode sterilization dedusting composite material collecting plate uniform vertical is mounted in anode-supported structure, and anode sterilization dedusting plate is equipped with the electrode applied with positive voltage；Cathode sterilization dedusting plate includes that cathode sterilizes dedusting board supporting structure, muti-piece cathode sterilization dedusting composite material collecting plate uniform vertical is mounted in cathode-supported plane, and cathode sterilization dedusting plate is equipped with to be applied with negative voltage.This vehicles guest room air disinfection dust-extraction unit can realize low-power, without arcing electric discharge phenomena, while realize the efficient trapping to microorganism and particulate matter.
Description
Technical field
The invention belongs to air filtration, air purity technique, Heating,Ventilating and Air Conditioning and microorganism fields, and in particular to the vehicles
Guest room such as high-speed rail EMU and subway passenger air disinfection dust removal method and its device, can be effectively reduced it is thin in air
The microorganism concns such as bacterium, fungi and particulate matter (PM2.5, PM10) concentration.
Background technique
With technological progress, (guest room also includes motor bus, wheel to the railway carriage including high-speed rail EMU, subway and other modes of transport
Ship and aircraft etc.) blander temperature and humidity is kept, but belong to the space of relative density, in long-play process
In, containing there are many mixed microorganisms in the air in the space.The concentration of suspension microorganism depends primarily on interior in air
Whether sanitary condition, passenger's density, passenger carry the health conditions such as germ, the activity condition of passenger, indoor fresh air volume and lead to
Wind effect etc..Passenger's density is big in vehicles guest room, frequent activity, improper ventilation when, total number of bacteria is easy for exceeded.
Contain a certain number of pathogenic microorganisms in the saliva of passenger's generation and sputum droplet, they can be attached to indoor outstanding
Floating particles object is propagated and is spread, and can other passengers and crew member be caused with effect of causing a disease.Especially in vehicles guest room
In the case that interior air humidity is big, improper ventilation, sunlight are insufficient and relative closure, the existence of microorganism and reproductive probability are larger.
These microorganisms by the air duct of air-conditioning system, spread by other air ports into guest room, causes potential hazard to other passengers.Again plus
Upper air-conditioning system belongs to concealed work, if potential pathogenic can break out in specific time displays without effective maintenance.
The operation of high-speed rail EMU and subway etc. can pass through different locations, air-conditioning system while introducing fresh air,
Outdoor particulate matter and microorganism can be introduced.Under specific circumstances, in case of biological terrorist, existing air-conditioning system without
Method effectively solves the problems, such as this, and generated consequence social influence is very big, is related to public safety.Therefore, it is necessary to high-speed rail motor-car
The air of group and subway's air-conditioning system carries out sterilization dedusting.
Existing air disinfection dust removal method is mainly filled type air filter, electrostatic precipitator etc..The above method is deposited
In following disadvantage: (one) air filter is while filtration of particulate matters, since resistance is larger, to high-speed rail EMU and subway
Fan Selection brings difficulty.For this purpose, in order to reduce air filter resistance, the usual efficiency of selected air filter compared with
It is low, it cannot achieve the function of sterilization；(2) electrostatic precipitator is easy to produce ozone, this is to the relatively closed vehicles in space visitor
Room indoor occupant is unfavorable.The operation of long-time long range increases time and the concentration of Human body package.For passenger and service on buses or trains people
The respiratory tract of member generates potentially hazardous.
Furthermore air disinfection dust-extraction unit is also developed in recent years.A kind of multi-functional air such as Shanghai Communications University is net
(number of patent application: 201710177764.1), the air purifier (patent of Shanghai San Shiyan Genie et Environnement is set in makeup
Application number: 201410406139.6.0), Wuhu it is net along a kind of air of high-efficiency environment friendly safety of scape automation equipment Co., Ltd
Change processing equipment (number of patent application: 201611251586.4).Vehicles guest room air disinfection dedusting side proposed by the present invention
Method and its device can realize low-power, without arcing electric discharge phenomena, while realize the efficient trapping to microorganism and particulate matter.It utilizes
The present apparatus can also be updated transformation to the existing air-conditioning system of high-speed rail EMU and subway simultaneously, without changing existing wind
Machine can increase the heat transfer characteristic of A/C evaporator, improve the efficiency of air-conditioning system.
Summary of the invention
Goal of the invention: the present invention provides vehicles guest room air disinfection dust removal method and its devices, can remove simultaneously
Particulate matter and microorganism in air realize indoor air environment clean in vehicles guest room.Low-power can be achieved, without drawing
Arc discharge phenomenon, while realizing the efficient trapping to microorganism and particulate matter.Not chummery is updated to be not necessarily to change existing blower, energy
Increase the heat transfer characteristic of A/C evaporator, improve the efficiency of air-conditioning system.
Technical solution of the present invention: vehicles guest room air disinfection dust-extraction unit, including plate type electrode, anode sterilization dedusting
Plate, cathode anode sterilize dedusting plate.Wherein plate type electrode includes the DC voltage electrode 5, negative of positive electrode plate 1, positive electrode plate
Electrode outline border 2, the DC voltage cathode 6 of negative electrode outline border, anode sterilization dedusting plate 3 and cathode sterilize dedusting plate 4；
Anode sterilization dedusting plate includes that anode sterilizes dedusting board supporting structure 3-1, muti-piece anode sterilizes dedusting composite material
Collecting plate 3-2,3-3 uniform vertical is mounted in anode-supported structure, and anode sterilization dedusting plate, which is equipped with, to be applied with positive voltage
Electrode 7；
Cathode sterilization dedusting plate includes cathode sterilization dedusting board supporting structure 4-1, muti-piece cathode sterilization dedusting composite material
Collecting plate 4-2,4-3 uniform vertical is mounted in cathode-supported structure, and cathode sterilization dedusting plate, which is equipped with, to be applied with negative voltage
Electrode 8；
DC voltage electrode 5 is connected with positive electrode plate 1, the DC voltage cathode 6 of negative electrode outline border 2 and negative electrode outline border
It is connected,
Installation anode sterilization dedusting composite material collecting plate 3-2,3-3, anode on anode sterilization dedusting board supporting structure 3-1
Sterilization dedusting board supporting structure 3 and anode sterilization dedusting plate are equipped with the electrode 7 applied with positive voltage；Cathode sterilizes dedusting plate branch
Support structure 4-1 is connected with cathode sterilization dedusting plate with negative electrode 8, cathode sterilization dedusting board supporting structure 4-1 is equipped with cathode and kills
Bacterium dedusting composite material collecting plate 4-2,4-3 are connected.
The anode sterilizes dedusting composite material collecting plate 3-2, with a thickness of 0.5~5mm, sheet resistance value 103~1015
Ω, bulk resistance 103~1015Ω/cm。
Anode sterilization the distance between dedusting composite material collecting plate 3-1 plate and plate are 3~20mm.
Then the distance between plate and plate are remote for input voltage height.
Anode sterilization dedusting composite material collecting plate is with a thickness of 0.5~5mm, sheet resistance value 103~1015Ω, body electricity
Resistance value is 103~1015Ω/cm。
Cathode sterilizes dedusting composite material collecting plate with a thickness of 0.5~5mm, and sheet resistance value is 10~1014Ω, bulk resistor
Value is 10~1014Ω/cm。
Muti-piece anode sterilizes dedusting composite material collecting plate and muti-piece cathode sterilizes dedusting composite material collecting plate opposite face
It is staggered installation of；
The anode sterilizes dedusting composite material collecting plate 3-2, anode sterilizes dedusting composite material collecting plate 3-2 ...,
Using engineering plastics polypropylene PP, polyphenylene oxide PPE or polycarbonate as carrier, graphene, carbon nanotube and nano silver and carrier
Material is uniformly compound, composite material of the dielectric constant less than 4.0.
Vehicles guest room air disinfection dust removal method, by being averaged on the basis of the average input voltage of 1kV~30kV
Input voltage refers to that DC voltage superposition generates sinusoidal or cosine waveform voltage, improves particle collection efficiency and germicidal efficiency.
The plate spacing of the anode sterilization dedusting composite material collecting plate 3-2 is 3-10mm.
The cathode sterilizes dedusting composite material collecting plate 4-2, cathode sterilizes dedusting composite material collecting plate 4-2 ...,
With a thickness of 0.5~5mm, sheet resistance value is 10~1014Ω, bulk resistance are 10~1014Ω/cm。
The spacing of the cathode sterilization dedusting composite material collecting plate 4-2 is 1-100mm.
Using engineering plastics polypropylene PP, polyphenylene oxide PPE and polycarbonate as carrier, by additive high dispersive technology,
It realizes the homogenous composite of graphene, carbon nanotube and nano silver, obtains composite material of the dielectric constant less than 8.0, thus
The air disinfection dust-extraction unit of composition is without phenomenon of arc discharge, and ozone free generates.
The anode sterilization dedusting plate sine and cosine positive electrode 7, superposition is sinusoidal on the basis of average voltage is 4-30kV
Or the voltage of cosine, it can effectively improve the arresting efficiency of sterilization dedusting composite material collecting plate.Apply being averaged for 4kV~30kV
Input voltage, average input voltage refer to DC voltage (voltage amplitude of 50-95% is direct current) superposition sine or cosine waveform
Voltage improves particle collection efficiency and germicidal efficiency.
Compared with prior art, technical solution of the present invention the utility model has the advantages that
(1) using engineering plastics polypropylene PP, polyphenylene oxide PPE and polycarbonate as carrier, pass through additive high dispersive skill
Art realizes the homogenous composite of graphene, carbon nanotube and nano silver, and the composite material dielectric constant of acquisition is low, conductive special
Property thermal conduction characteristic is outstanding, and high temperature resistant is fire-retardant, meets high-speed rail, the flame-retardancy requirements of ground iron material.
(2) in the field strength that sterilization dust removal device made of above-mentioned composite material is formed, phenomenon of arc discharge will not be generated, and do not deposit
In drastic discharge phenomenon, ozone free is generated.
(3) the wasted work power very little of the sterilization dust removal device, and in the face velocity of 2m/s, resistance is lower than
5Pa, in the face velocity of 8m/s, resistance only has 30Pa.
(4) 60% is greater than for the particle collection efficiency more than or equal to 0.3 μm, and disposable bactericidal efficiency is greater than
90%.
(5) plate type electrode is set in the upstream of air-flow, there is good multiplication effect.
(6) device may be mounted at original filters locations in high-speed rail and subway's air-conditioning system, not will increase volume, no
Change original structure and do not increase blower power consumption without replacing blower, can effectively enhance the heat transfer effect of downstream heat exchanger, improves
Air-conditioning system efficiency.
In short, vehicles guest room air disinfection dust removal method of the present invention and its device can realize low-power, put without arcing
Electrical phenomena, while realizing the efficient trapping to microorganism and particulate matter.Using the present apparatus simultaneously can also to high-speed rail EMU and
The existing air-conditioning system of subway is updated transformation, without changing existing blower, can increase the heat transfer characteristic of A/C evaporator, mentions
The efficiency of high air-conditioning system.
Detailed description of the invention
Fig. 1 is vehicles guest room air disinfection dust-extraction unit schematic diagram in the present invention；
Fig. 2 is iron EMU and subway passenger air disinfection dust-extraction unit three-dimensional model diagram (being directed to Fig. 1) in the present invention；
Fig. 3 is that anode and cathode sterilize dedusting plate and intert schematic diagram one.
Fig. 4 is that anode and cathode sterilize dedusting plate and intert schematic diagram two.
Fig. 5 is sinusoidal V diagram.
Fig. 6 is cosinusoidal voltage schematic diagram.
Specific embodiment
Below in conjunction with attached drawing, by embodiment, the present invention will be further described, to more fully understand the present invention.
As depicted in figs. 1 and 2, the air that dust-laden carries disease germs then passes through anode by positive electrode plate 1 and negative electrode outline border 2
Sterilization dedusting composite material collecting plate 3-2 and cathode are sterilized between dedusting composite material collecting plate 4-2, anode sterilization dedusting is compound
Material collecting plate 3-2 and cathode sterilization dedusting composite material collecting plate 4-2 between ... channel, charged particle thing is corresponding
Collecting plate on collect, on the scene pretend of the particulate matter and microorganism to carry disease germs is removed under.
As shown in Figure 3 and Figure 4, anode and cathode sterilization dedusting plate are interted, anode sterilization dedusting composite material dust
Plate 3-2 and cathode are sterilized between dedusting composite material collecting plate 4-2, anode sterilizes dedusting composite material collecting plate 3-2 and cathode
The channel that forms air-flow is sterilized between dedusting composite material collecting plate 4-2 ....
Anode sterilization dedusting composite material collecting plate and cathode sterilize dedusting composite material collecting plate, pass through additive high score
The technology of dissipating realizes the uniform sequential composite material of graphene, carbon nanotube and nano silver, obtains dielectric constant answering less than 4.0
Condensation material.
As shown in Figure 5 and Figure 6, by anode sterilization dedusting plate on sine and cosine positive electrode 7, be 1- by average voltage
It is superimposed that sinusoidal or cosine or what is be adjusted there is time and field strength to have at what function changed on the basis of the DC voltage of 30kV
Regular voltage of electric field can effectively improve the arresting efficiency of sterilization dedusting composite material collecting plate.
Vehicles guest room air disinfection dust-extraction unit with reference to the accompanying drawings, including plate type electrode, anode are sterilized dedusting plate, are born
Sterilize dedusting plate in pole.Wherein plate type electrode include positive electrode plate 1, the DC voltage electrode 5 of positive electrode plate, negative electrode outline border 2,
DC voltage cathode 6, anode sterilization dedusting plate 3 and the cathode of negative electrode outline border sterilize dedusting plate 4；
Anode sterilization dedusting plate 3 includes that anode sterilizes dedusting board supporting structure 3-1, muti-piece anode sterilizes dedusting composite material
Collecting plate 3-2,3-3 uniform vertical is mounted in anode-supported structure, and anode sterilization dedusting plate, which is equipped with, to be applied with positive voltage
Electrode 7；
It includes cathode sterilization dedusting board supporting structure 4-1, muti-piece cathode sterilization dedusting composite material that cathode, which sterilizes dedusting plate 4,
Collecting plate 4-2,4-3 uniform vertical is mounted in cathode-supported plane, and cathode sterilization dedusting plate, which is equipped with, to be applied with negative voltage
Electrode 8；
DC voltage electrode 5 is connected with positive electrode plate 1, the DC voltage cathode 6 of negative electrode outline border 2 and negative electrode outline border
It is connected；
Anode sterilization 3 support construction 3-1 of dedusting plate is connected with anode sterilization dedusting composite material collecting plate 3-1,3-2；
Anode sterilization dedusting board supporting structure 3-1 and anode sterilization dedusting plate are equipped with the electrode 7 applied with positive voltage；
Cathode sterilizes dedusting board supporting structure 4-1 and is connected with cathode sterilization dedusting plate negative electrode 8；
Cathode sterilizes dedusting board supporting structure 4-1 and is connected with cathode sterilization dedusting composite material collecting plate 4-2,4-3.
Described anode sterilization dedusting composite material collecting plate 3-2,3-3 is with a thickness of 0.5~5mm, sheet resistance value 103~
1015Ω, bulk resistance 103~1015Ω/cm.Anode sterilization the distance between dedusting composite material collecting plate 3-2 and 3-3 are 3
~20mm.
Cathode sterilizes dedusting composite material collecting plate with a thickness of 0.5~5mm, and sheet resistance value is 10~1014Ω, bulk resistor
Value is 10~1014Ω/cm.It is 3~20mm that cathode, which sterilizes the distance between dedusting composite material collecting plate 3-2 and 3-3,.
Muti-piece anode sterilizes dedusting composite material collecting plate and muti-piece cathode sterilizes dedusting composite material collecting plate opposite face
It is staggered installation of, but is not attached to.
The anode sterilizes dedusting composite material collecting plate 3-2, anode sterilizes dedusting composite material collecting plate 3-2 ...,
Using engineering plastics polypropylene PP, polyphenylene oxide PPE or polycarbonate as carrier, graphene, carbon nanotube and nano silver and carrier
Material is uniformly compound, composite material of the dielectric constant less than 4.0.The cathode sterilizes dedusting composite material collecting plate 4-2, cathode
Sterilization dedusting composite material collecting plate 4-2 ..., it is to carry with engineering plastics polypropylene PP, polyphenylene oxide PPE or polycarbonate
Body, graphene, carbon nanotube and nano silver and carrier material are uniformly compound, composite material of the dielectric constant less than 8.0.Using different
Cyanate, diazonium salt treatment surface of graphene oxide cover epoxy, hydroxyl, carboxyl, diazonium functional group in surface of graphene oxide
Group.It is blended by solvent, melt blending or atom transferred free radical in-situ polymerization grafting are to realize graphene in high score
High degree of dispersion in sub- material.Finally using hydrazine redox graphene to improve electrical and thermal conductivity performance, hydrazine is to other materials base
This does not generate effect.
The above description is only an embodiment of the present invention, is not intended to limit the invention, all in the spirit and principles in the present invention
Within made any modifications, equivalent replacements, and improvements etc., to be included within protection scope of the present invention.
Claims (8)
1. vehicles guest room air disinfection dust-extraction unit, characterized in that including plate type electrode, anode sterilization dedusting plate, cathode
Sterilize dedusting plate；Wherein plate type electrode includes positive electrode plate, the DC voltage electrode of positive electrode plate, negative electrode outline border, negative electricity
DC voltage cathode, anode sterilization dedusting plate and the cathode of pole outline border sterilize dedusting plate；
Anode sterilization dedusting plate is equal including anode sterilization dedusting board supporting structure, muti-piece anode sterilization dedusting composite material collecting plate
Even to be vertically mounted in anode-supported structure, anode sterilization dedusting plate is equipped with the electrode applied with positive voltage；
Cathode sterilization dedusting plate include cathode sterilization dedusting board supporting structure, muti-piece cathode sterilization dedusting composite material collecting plate it is equal
Even to be vertically mounted in cathode-supported plane, cathode sterilization dedusting plate is equipped with the electrode applied with negative voltage；
DC voltage electrode is connected with positive electrode plate,
Negative electrode outline border is connected with the DC voltage cathode of negative electrode outline border；
Anode sterilization dedusting board supporting structure is connected with anode sterilization dedusting composite material collecting plate；
Anode sterilization dedusting board supporting structure and anode sterilization dedusting plate are equipped with the electrode applied with positive voltage；
Cathode sterilizes dedusting board supporting structure and is connected with cathode sterilization dedusting plate with negative electrode；
Cathode sterilizes dedusting board supporting structure and is connected with cathode sterilization dedusting composite material collecting plate.
2. vehicles guest room air disinfection dust-extraction unit according to claim 1, characterized in that the anode sterilization removes
Dirt composite material collecting plate is with a thickness of 0.5~5mm, sheet resistance value 103~1015Ω, bulk resistance 103~1015Ω/
cm；
The distance between anode sterilization dedusting composite material collecting plate is 3~20mm.
3. vehicles guest room air disinfection dust-extraction unit according to claim 1, characterized in that it is multiple that cathode sterilizes dedusting
For condensation material collecting plate with a thickness of 0.5~5mm, sheet resistance value is 10~1014Ω, bulk resistance are 10~1014Ω/cm；Cathode
Sterilizing the distance between dedusting composite material collecting plate is 3~20mm.
4. vehicles guest room air disinfection dust-extraction unit according to claim 1, characterized in that the sterilization of muti-piece anode removes
Dirt composite material collecting plate is staggered installation of with muti-piece cathode sterilization dedusting composite material collecting plate opposite face.
5. vehicles guest room air disinfection dust-extraction unit according to claim 1, characterized in that the anode sterilization removes
Dirt composite material collecting plate is using engineering plastics polypropylene PP, polyphenylene oxide PPE or polycarbonate as carrier material, using graphite
Alkene, carbon nanotube and nano silver and carrier material are uniformly compound, obtain composite material of the dielectric constant less than 4.0.
6. vehicles guest room air disinfection dust-extraction unit according to claim 1, characterized in that the cathode sterilization removes
Dirt composite material collecting plate is using engineering plastics polypropylene PP, polyphenylene oxide PPE or polycarbonate as carrier material, using graphite
Alkene, carbon nanotube and nano silver and carrier material are uniformly compound, obtain composite material of the dielectric constant less than 8.0.
7. a kind of preparation method of vehicles guest room air disinfection dust-extraction unit according to claim 5 or 6, feature
Be, using isocyanates, diazonium salt treatment surface of graphene oxide, surface of graphene oxide cover epoxy, hydroxyl, carboxyl,
Diazonium functional group；It is blended by solvent, melt blending or atom transferred free radical in-situ polymerization grafting are to realize stone
High degree of dispersion of the black alkene in polypropylene PP, polyphenylene oxide PPE or polycarbonate high molecular material；Finally utilize hydrazine reduction-oxidation
Graphene is to improve electrical and thermal conductivity performance.
8. a kind of vehicles guest room air disinfection dust-extraction unit according to claim 1 is killed in vehicles guest room air
Bacterium dust removal method, it is characterized in that applying the average input voltage of 4kV~30kV, average input voltage refers to that DC voltage superposition is sinusoidal
Or the voltage of cosine waveform, improve particle collection efficiency and germicidal efficiency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810776981.7A CN109127139B (en) | 2018-07-16 | 2018-07-16 | Method and device for sterilizing and dedusting air in passenger room of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810776981.7A CN109127139B (en) | 2018-07-16 | 2018-07-16 | Method and device for sterilizing and dedusting air in passenger room of vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN109127139A true CN109127139A (en) | 2019-01-04 |
| CN109127139B CN109127139B (en) | 2020-09-11 |
Family
ID=64800491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810776981.7A Active CN109127139B (en) | 2018-07-16 | 2018-07-16 | Method and device for sterilizing and dedusting air in passenger room of vehicle |
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| CN (1) | CN109127139B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111821601A (en) * | 2020-05-27 | 2020-10-27 | 深圳艾素科技有限公司 | Electronic filtering device and operation method thereof |
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|---|---|
| CN109127139B (en) | 2020-09-11 |
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