CN110327756A - A kind of ultraviolet sterilization apparatus and control method for sterilizing and purifying device - Google Patents
A kind of ultraviolet sterilization apparatus and control method for sterilizing and purifying device Download PDFInfo
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- CN110327756A CN110327756A CN201910754642.3A CN201910754642A CN110327756A CN 110327756 A CN110327756 A CN 110327756A CN 201910754642 A CN201910754642 A CN 201910754642A CN 110327756 A CN110327756 A CN 110327756A
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- frequency conversion
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- power supply
- module
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- 230000001954 sterilising effect Effects 0.000 title claims abstract description 35
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 51
- 238000001514 detection method Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000010453 quartz Substances 0.000 abstract description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 17
- 229910052753 mercury Inorganic materials 0.000 description 13
- 238000010586 diagram Methods 0.000 description 9
- 238000001228 spectrum Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 238000005660 chlorination reaction Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 208000018569 Respiratory Tract disease Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 235000019256 formaldehyde Nutrition 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Classifications
-
- 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
- B01D53/007—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 irradiation
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/804—UV light
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biomedical Technology (AREA)
- Toxicology (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The present invention relates to a kind of ultraviolet sterilization apparatus and control method for sterilizing and purifying device, wherein device includes power supply, frequency conversion fan, air quality sensor group, controller and ultraviolet tube, frequency conversion fan is connect with tunnel inlet, power module is connect with frequency conversion fan, controller and ultraviolet tube respectively, controller is connect with frequency conversion fan and air quality sensor group and ultraviolet tube respectively, ultraviolet tube is set in air duct, device further includes the Rotating speed measring module for detecting frequency conversion fan revolving speed, which connect with controller.Compared with prior art, the present invention designs quartz burner in air duct, while the rotary speed information that can provide frequency conversion fan carries out power control to ultraviolet tube, to improve the bactericidal effect of ultraviolet tube.
Description
Technical field
The present invention relates to a kind of sterilizing units, more particularly, to a kind of ultraviolet sterilization apparatus for sterilizing and purifying device
And control method.
Background technique
With the progress of living standard, people become more focused on health, and air purifier can alleviate respiratory tract disease
The disease incidence of disease, has been increasingly entering family and public place.
But existing air purifier is all commonly the filtering solids dust such as PM2.5, can not in air bacterium, post
It is infested etc. to be killed, therefore those skilled in the art's serious hope develops one kind and can disappear to what the bacterium in air was killed
Malicious purification device.
In disinfection field, Ultraviolet Disinfection is that a kind of not only mature but also cheap mode, current ultraviolet light source are exhausted
Most of is mercury-arc lamp (ultraviolet lamp or mercury lamp that are generally called).Mercury-arc lamp be packaged with mercury, there is the suprasil of electrode at both ends
Pipe, when electrified regulation filament, the mercury vapour in pipe is transitted to excitation state by excitation, i.e. transmitting purple when returning to ground state by excitation state
Outer light.Depending on the difference of mercury-vapor pressure in managing, the ultraviolet emitted also has different spectrum, can be divided into 3 classes.
1) the low pressure mercury lamp mercury-vapor pressure discrete spectrum linear for the ultraviolet light of 10~100Pa transmitting, mainly sends out
Ejected wave a length of 254nm and 185nm, and the former accounts for 95% or more of whole emitted energies (with 185nm line actually in pipe
Based on spectrum, but quartz has strong absorption, thus its proportion very little outside pipe to it.)
The power of low pressure mercury lamp is smaller, and general only tens watts, while its launch wavelength is extremely short, is also easy to produce ozone, causes
Air pollution is rarely employed in photocuring.The service life of low pressure mercury lamp is 200~400h.
2) medium pressure mercury lamp: traditionally once calling it as high-pressure sodium lamp, and the mercury-vapor pressure in this lamp is 105kPa (about 1
Atmospheric pressure).Since mercury vapour spectral line of emission in high temperature discharge increases under high pressure and pressure widens phenomenon, medium pressure mercury lamp hair
Line wavelength wider range for penetrating simultaneously has overlapping, and in ultra-violet (UV) band, its dominant emission wavelength is 365nm, followed by 313nm, 303nm.
The service life of medium pressure mercury lamp is 1000~1500h.
3) high-pressure sodium lamp: being traditionally referred to as ultrahigh pressure mercury lamp, and mercury-vapor pressure is 105~106Pa, i.e. 1~10 atmosphere
Pressure.It can provide strongest Uv and visible light, and output power is up to ten times of common medium pressure mercury lamp, its electrode temperature when work
Degree is up to 2000 DEG C, and lamp hole temperature is then up to 600 DEG C, it is therefore desirable to be cooled down, the power of lamp is related with cooling efficiency.It is high
The service life of pressure mercury lamp is shorter, about 75~100h.High-pressure sodium lamp emission spectrum is overlapped more severe, is in continuous band-shaped light
Spectrum.
Such as Chinese patent CN109237660A discloses a kind of chlorination equipment and air purifier, is related to air cleaning neck
Domain.Chlorination equipment includes: multiple ultraviolet radiator, emits UVC band ultraviolet, and main direction of illumination passes through perpendicular to air stream
The direction of strainer, to sterilize to air exposure, ultraviolet radiator and filter screen are arranged in spacing, so that the UVC that ultraviolet radiator issues
Band ultraviolet is to filter screen illumination-based disinfection；And multiple reflectors, it is arranged in a one-to-one correspondence with multiple ultraviolet radiator, ultraviolet radiator
It is placed between filter screen and reflector, and the reflective surface of reflector is parallel with the main direction of illumination of ultraviolet radiator, so that
Filter screen is completely covered UVC band ultraviolet.It had not only realized and had carried out disinfection to the air before entering filter screen in this way, but also done
The filtering disinfection to filter screen is arrived, thus the offer pure air for enabling air purifier to continue.However, the chlorination equipment
And air purifier will be only and carry out disinfection to filter screen, cause the efficiency of disinfection practical not high.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind to be used for sterilizing and purifying
The ultraviolet sterilization apparatus and control method of device.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of ultraviolet sterilization apparatus for sterilizing and purifying device, including power supply, frequency conversion fan, air quality sensor
Group, controller and ultraviolet tube, the frequency conversion fan are connect with tunnel inlet, the power module respectively with frequency conversion fan, control
Device processed is connected with ultraviolet tube, and the controller is connect with frequency conversion fan and air quality sensor group and ultraviolet tube respectively,
The ultraviolet tube is set in air duct, and described device further includes the Rotating speed measring module for detecting frequency conversion fan revolving speed, this turn
Fast detection module is connect with controller.
The power module includes mains electricity input end, the first power supply module, the second power supply module and third power supply module,
The input terminal of mains electricity input end be connected to alternating current input, output end respectively with the first power supply module, the second power supply module
It is connected with the input terminal of third power supply module, the output end of first power supply module is connected to frequency conversion fan, and described second supplies
The output end of electric module is connected to controller, and the output end of the third power supply module is connected to ultraviolet tube.
The Rotating speed measring module is the first current detection module for detecting the current value for flowing through frequency conversion fan.
The Rotating speed measring module is encoder, which connect with frequency conversion fan.
Described device further includes the UV sensor for detecting uitraviolet intensity, which is set to air duct
At middle near ultraviolet spool, and it is connect with controller.
Described device further includes wireless receiver, which connect with controller.
The wireless receiver is 4G module.
The ultraviolet tube is mercury-arc lamp.
A kind of control method of such as above-mentioned device, comprising:
Step S1: it when reaching ultraviolet-sterilization setting time section, opens ultraviolet tube and is sterilized；
Step S2: the uitraviolet intensity emitted according to ultraviolet tube controls the revolving speed of frequency conversion fan.
The setting time section is daily 7:00-13:00.
Compared with prior art, the invention has the following advantages:
1) by ultraviolet tube design in air duct, while the rotary speed information that can provide frequency conversion fan carries out ultraviolet tube
Power control, to improve the bactericidal effect of ultraviolet tube.
2) it is that frequency conversion fan, ultraviolet tube and controller are independently-powered, avoids interfering with each other.
3) Rotating speed measring of frequency conversion fan is realized by the way of current detecting, structure is simple, is conducive to reduce volume.
4) it configures independent encoder and carries out Rotating speed measring, accuracy in detection can be improved, it will not be old because of frequency conversion fan
Change causes electric current to convert to obtain revolving speed distortion.
5) UV sensor is configured, the feedback control of ultraviolet tube may be implemented.
6) it is configured with wireless receiver, the long-range transmitting-receiving of data can be carried out.
7) setting time section is daily 7:00-13:00, can effectively be sterilized when bacterium enlivens, to take
Obtain better bactericidal effect.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is air duct arrangement schematic diagram of the present invention；
Fig. 3 is the circuit diagram of controller；
Fig. 4 is the circuit diagram of the first current detection module；
Fig. 5 is the circuit diagram of UV sensor；
Fig. 6 is the circuit diagram of wireless receiver part；
Fig. 7 is the circuit diagram of air quality sensor group；
Wherein: 1, controller, 2, power supply, 3, air quality sensor group, 4, frequency conversion fan, 5, ultraviolet tube.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to
Following embodiments.
A kind of ultraviolet sterilization apparatus for sterilizing and purifying device, as depicted in figs. 1 and 2, including power supply 2, frequency conversion wind
Machine 4, air quality sensor group 3, controller 1 and ultraviolet tube 5, frequency conversion fan 4 are connect with tunnel inlet, 2 module of power supply point
Do not connect with frequency conversion fan 4, controller 1 and ultraviolet tube 5, controller 1 respectively with frequency conversion fan 4 and air quality sensor group
3 and ultraviolet tube 5 connect, ultraviolet tube 5 be set to air duct in, device further include for detect 4 revolving speed of frequency conversion fan revolving speed examine
Module is surveyed, which connect with controller 1.By the design of ultraviolet tube 5 in air duct, while frequency conversion wind can be provided
The rotary speed information of machine 4 carries out power control to ultraviolet tube 5, to improve the bactericidal effect of ultraviolet tube 5.Ultraviolet tube 5
Sterilizing rate be it is related with the uitraviolet intensity of its own and air velocity, air velocity is then by the revolving speed of frequency conversion fan 4
It is related with duct cross-section product, it is related with the revolving speed of frequency conversion fan 4 since duct cross-section product is immutable, and so knows that
The revolving speed of frequency conversion fan 4 can carry out feedback control to ultraviolet tube 5, realize more accurate bactericidal effect, specific sterilizing rate
Functional relation between uitraviolet intensity, revolving speed can be measured by limited trials, therefore be repeated no more.
Controller 1 uses STM32F103C8T6, and circuit diagram is as shown in figure 3, air quality sensor group 3 is closed more using
One air borne sensor mould group S6 (PM2.5/PM10/CO2/TVOC/ temperature and humidity/CH2O), physical circuit figure is as shown in fig. 7, frequency conversion
The range of choice of blower 4 is wider, as long as basic size is properly ok, ultraviolet tube 5 can select ultraviolet germicidal lamp tube
15W30W40W ZW30S19W etc..
2 module of power supply includes mains electricity input end, the first power supply module, the second power supply module and third power supply module, city
The input terminal of electrical input be connected to alternating current input, output end respectively with the first power supply module, the second power supply module and third
The input terminal of power supply module connects, and the output end of the first power supply module is connected to frequency conversion fan 4, the output end of the second power supply module
It is connected to controller 1, the output end of third power supply module is connected to ultraviolet tube 5, is frequency conversion fan 4, ultraviolet tube 5 and control
Device 1 is independently-powered, avoids interfering with each other.First power supply module, the second power supply module and third power supply module can be on the market
Purchase, it is specific to need to be selected according to the voltage rating of frequency conversion fan 4, controller 1 and ultraviolet tube 5, for example, if frequency conversion fan 4
Nominal input voltage be 12V DC, then the first power supply module should just select the regulated power supply 2 of 12V DC, and electric current is supported to answer
When the maximum current for being not less than frequency conversion fan 4.Those skilled in the art can carry out type selecting with no obstacle.
In one embodiment, Rotating speed measring module is the first electric current for detecting the current value for flowing through frequency conversion fan 4
Detection module is implemented circuit diagram as shown in figure 4, in the embodiment, frequency conversion fan 4 is realized by the way of current detecting
Rotating speed measring, structure is simple, is conducive to reduce volume, the same model frequency conversion fan 4 of corresponding same state is mainly utilized,
The one-to-one functional relation of electric current and revolving speed.
In another embodiment, Rotating speed measring module is encoder, which connect with frequency conversion fan 4, specifically may be used
In this embodiment, to configure independent encoder and carry out Rotating speed measring using models such as RMB29 magnetic rotary encoder modules,
Accuracy in detection can be improved, electric current will not be caused to convert to obtain revolving speed distortion because of 4 aging of frequency conversion fan.
Device further includes the UV sensor for detecting uitraviolet intensity, which is set to close in air duct
It at ultraviolet tube 5, and is connect with controller 1, the physical circuit figure of UV sensor is as shown in figure 5, model can be yitc-
uv-5v。
Device further includes wireless receiver, which connect with controller 1.
Wireless receiver is 4G module, and physical circuit figure is as shown in Figure 6.
Such as the control method of above-mentioned apparatus, comprising:
Step S1: it when reaching ultraviolet-sterilization setting time section, opens ultraviolet tube 5 and is sterilized；
Step S2: the uitraviolet intensity emitted according to ultraviolet tube 5 controls the revolving speed of frequency conversion fan 4.
UV sterilization is independent task, it then follows the setting time work of oneself, frequency conversion fan 4 are set as excellent with air quantity maximum
First, specifically, as shown in table 1:
Table 1
Measured value/standard value can be remotely located, can also be arranged on PAD, and sterilization grade 24H is only continuously opened once,
Remaining time forbids running.
Claims (10)
1. a kind of ultraviolet sterilization apparatus for sterilizing and purifying device, including power supply, frequency conversion fan, air quality sensor
Group, controller and ultraviolet tube, the frequency conversion fan are connect with tunnel inlet, the power module respectively with frequency conversion fan, control
Device processed is connected with ultraviolet tube, and the controller is connect with frequency conversion fan and air quality sensor group and ultraviolet tube respectively,
It is characterized in that, the ultraviolet tube is set in air duct, described device further includes examining for detecting the revolving speed of frequency conversion fan revolving speed
Module is surveyed, which connect with controller.
2. a kind of ultraviolet sterilization apparatus for sterilizing and purifying device according to claim 1, which is characterized in that described
Power module includes mains electricity input end, the first power supply module, the second power supply module and third power supply module, the alternating current input
The input terminal of terminal be connected to alternating current input, output end respectively with the first power supply module, the second power supply module and third power mould
The input terminal of block connects, and the output end of first power supply module is connected to frequency conversion fan, the output of second power supply module
End is connected to controller, and the output end of the third power supply module is connected to ultraviolet tube.
3. a kind of ultraviolet sterilization apparatus for sterilizing and purifying device according to claim 1, which is characterized in that described
Rotating speed measring module is the first current detection module for detecting the current value for flowing through frequency conversion fan.
4. a kind of ultraviolet sterilization apparatus for sterilizing and purifying device according to claim 1, which is characterized in that described
Rotating speed measring module is encoder, which connect with frequency conversion fan.
5. a kind of ultraviolet sterilization apparatus for sterilizing and purifying device according to claim 1, which is characterized in that described
Device further includes the UV sensor for detecting uitraviolet intensity, which is set near ultraviolet spool in air duct
Place, and connect with controller.
6. a kind of ultraviolet sterilization apparatus for sterilizing and purifying device according to claim 1, which is characterized in that described
Device further includes wireless receiver, which connect with controller.
7. a kind of ultraviolet sterilization apparatus for sterilizing and purifying device according to claim 6, which is characterized in that described
Wireless receiver is 4G module.
8. a kind of ultraviolet sterilization apparatus for sterilizing and purifying device according to claim 1, which is characterized in that described
Ultraviolet tube is mercury-arc lamp.
9. a kind of control method of the device as described in any in claim 1~8 characterized by comprising
Step S1: it when reaching ultraviolet-sterilization setting time section, opens ultraviolet tube and is sterilized；
Step S2: the uitraviolet intensity emitted according to ultraviolet tube controls the revolving speed of frequency conversion fan.
10. according to the method described in claim 9, it is characterized in that, the setting time section is daily 7:00-13:00.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910754642.3A CN110327756A (en) | 2019-08-15 | 2019-08-15 | A kind of ultraviolet sterilization apparatus and control method for sterilizing and purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910754642.3A CN110327756A (en) | 2019-08-15 | 2019-08-15 | A kind of ultraviolet sterilization apparatus and control method for sterilizing and purifying device |
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| CN110327756A true CN110327756A (en) | 2019-10-15 |
Family
ID=68149657
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| CN201910754642.3A Pending CN110327756A (en) | 2019-08-15 | 2019-08-15 | A kind of ultraviolet sterilization apparatus and control method for sterilizing and purifying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115540100A (en) * | 2022-11-22 | 2022-12-30 | 科瑞特空调集团有限公司 | Ultraviolet sterilization air conditioning equipment with automatic cleaning function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07194684A (en) * | 1993-12-28 | 1995-08-01 | Daikin Ind Ltd | Sterilizing method and sterilizing equipment using it |
| CN104132437A (en) * | 2014-08-14 | 2014-11-05 | 上海嘉成轨道交通安全保障系统股份公司 | Air inlet mechanism of air purification system and control method |
| CN104633785A (en) * | 2015-02-28 | 2015-05-20 | 北京众鑫兴业大气污染治理有限公司 | Photocatalytic waste gas purification device |
| CN108981014A (en) * | 2018-06-26 | 2018-12-11 | 绍兴大科环保科技有限公司 | A kind of ceiling type air purifier |
| CN210699498U (en) * | 2019-08-15 | 2020-06-09 | 亿轶环境科技(上海)有限公司 | Ultraviolet sterilization device for disinfection and purification device |
-
2019
- 2019-08-15 CN CN201910754642.3A patent/CN110327756A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07194684A (en) * | 1993-12-28 | 1995-08-01 | Daikin Ind Ltd | Sterilizing method and sterilizing equipment using it |
| CN104132437A (en) * | 2014-08-14 | 2014-11-05 | 上海嘉成轨道交通安全保障系统股份公司 | Air inlet mechanism of air purification system and control method |
| CN104633785A (en) * | 2015-02-28 | 2015-05-20 | 北京众鑫兴业大气污染治理有限公司 | Photocatalytic waste gas purification device |
| CN108981014A (en) * | 2018-06-26 | 2018-12-11 | 绍兴大科环保科技有限公司 | A kind of ceiling type air purifier |
| CN210699498U (en) * | 2019-08-15 | 2020-06-09 | 亿轶环境科技(上海)有限公司 | Ultraviolet sterilization device for disinfection and purification device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115540100A (en) * | 2022-11-22 | 2022-12-30 | 科瑞特空调集团有限公司 | Ultraviolet sterilization air conditioning equipment with automatic cleaning function |
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Application publication date: 20191015 |