CN112413796A - Sterilizing equipment for air purification based on ultraviolet pulse laser - Google Patents
Sterilizing equipment for air purification based on ultraviolet pulse laser Download PDFInfo
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- CN112413796A CN112413796A CN202011335166.0A CN202011335166A CN112413796A CN 112413796 A CN112413796 A CN 112413796A CN 202011335166 A CN202011335166 A CN 202011335166A CN 112413796 A CN112413796 A CN 112413796A
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- integrating sphere
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
A sterilizing device for air purification based on ultraviolet pulse laser comprises a shell (1) and a stabilized voltage power supply (5), wherein the stabilized voltage power supply (5) is arranged in the shell (1), and is characterized in that an ultraviolet pulse laser (6) and a laser power supply device (7) are further arranged at the bottom in the shell (1), the stabilized voltage power supply (5) is connected with the laser power supply device (7), and the laser power supply device (7) is connected with the ultraviolet pulse laser (6); an optical integrating sphere (9) is arranged on the ultraviolet pulse laser (6), and a laser light outlet of the ultraviolet pulse laser (6) is hermetically connected with an inlet in the middle of the bottom of the optical integrating sphere (9); the device can realize the functions of impurity adsorption, bacterial killing and air purification in the air, can be opened for a long time and realize man-machine coexistence, and has higher sterilization efficiency.
Description
Technical Field
The invention discloses a sterilizing device for air purification based on ultraviolet pulse laser, relates to the field of air purification, and particularly relates to a sterilizing device for air purification by utilizing ultraviolet pulse laser.
Background
With the continuous improvement of living standard of people, the requirement for air quality is also synchronously improved. Air purifiers on the existing market are various in types, and can be roughly divided into the following three types according to the working principle: 1. the passive air purifier mainly adopts a filter screen filtering mode; 2. an active air purifier without a filter screen mainly adopts a high-voltage electrostatic dust collection mode; 3. active passive hybrid air purifier to the filter core is the core assembly, has also added the initiative technique of purifying simultaneously. And traditional filter screen filtration formula air purifier can only filter the dust and the particulate matter in the air, but can not disinfect and disinfect.
At present, ultraviolet lamps are mainly used for sterilizing and disinfecting bacteria in the air, and the ultraviolet lamps have the advantages of low price, convenience in use, sterilization and disinfection effects on most bacteria in the air and the like, so that the ultraviolet lamps are often used in kindergartens, hospitals, large stadiums and the like. However, the ultraviolet lamp has relatively low ultraviolet content, low average power, low sterilization efficiency, and harmful ultraviolet irradiation to human body for a long time, and usually, when the ultraviolet lamp is turned on, it should be ensured that no person is in the place, i.e. long-time turning on and man-machine co-location cannot be ensured. When the ultraviolet lamp is turned off, a large amount of microorganisms such as bacteria and the like can be bred quickly.
Disclosure of Invention
The invention aims to provide a sterilizing device for air purification based on ultraviolet pulse laser, which overcomes the defects that the sterilizing and killing efficiency of an irradiation lamp of the existing ultraviolet lamp is not high, and the long-term ultraviolet irradiation is harmful to human bodies.
A sterilizing equipment for air purification based on ultraviolet pulse laser, including outer casing 1 and stabilized voltage supply 5, wherein, the stabilized voltage supply 5 is in outer casing 1, characterized by, still there are ultraviolet pulse laser 6 and laser power supply unit 7 on the bottom in outer casing 1, the stabilized voltage supply 5 is connected with laser power supply unit 7, the laser power supply unit 7 is connected with ultraviolet pulse laser 6 again; an optical integrating sphere 9 is arranged on the ultraviolet pulse laser 6, and a laser light outlet of the ultraviolet pulse laser 6 is hermetically connected with an inlet in the middle of the bottom of the optical integrating sphere 9; an integrating sphere shell 8 is arranged outside the optical integrating sphere 9, and the optical integrating sphere 9 is fixed in the integrating sphere shell 8; an air inlet pipe 4 and an air outlet pipe 10 are arranged on the shell 1, an integrating sphere air inlet pipe 14 and an integrating sphere air outlet pipe 15 are synchronously arranged on the corresponding optical integrating sphere 9 and the integrating sphere shell 8, the air inlet pipe 4 is hermetically connected with the integrating sphere air inlet pipe 14, and the air outlet pipe 10 is hermetically connected with the integrating sphere air outlet pipe 15; an air inlet machine 3 is arranged at the outer end of the air inlet pipe 4, and an inlet filter screen 2 is arranged at the outer end of the air inlet machine 3; an exhaust fan 11 is arranged at the outer end of the exhaust pipe 10, and an outlet filter screen 12 is arranged at the outer end of the exhaust fan 11; a control panel 13 is arranged on the upper surface of the integrating sphere shell 8, and the control panel 13 is connected with the laser power supply device 7 through an RS232 connecting line;
the laser wavelength range emitted by the ultraviolet pulse laser 6 is 220nm-280 nm.
The integrating sphere air inlet pipe 14 and the integrating sphere air outlet pipe 15 are both arc-shaped curved channels, so that the laser reflected in the optical integrating sphere 9 cannot be emitted out of the air inlet pipe 4 and the air outlet pipe 10 linearly.
The inner wall of the optical integrating sphere 9 is plated with polytetrafluoroethylene which is a coating material with excellent diffuse reflection performance, and ultraviolet pulse laser which is directly irradiated on the inner wall can be diffusely reflected to each area in the optical integrating sphere 9 to form a uniform optical field.
The meshes of the inlet filter screen 2 and the outlet filter screen 12 are side length; less than or equal to 0.3 micron.
The wavelength emitted by the ultraviolet pulse laser 6 is 266.455nm, and the power of the ultraviolet pulse laser 6 is not less than 750 mW.
Compared with the prior art, the invention has the following advantages:
1. the solid laser is directly connected with the opening of the integrating sphere and fixed in the lightproof shell, so that ultraviolet laser cannot leak and cannot cause harm to human bodies. Can be used at any time and any place, and can realize human-computer co-location.
2. The average power of the ultraviolet pulse laser is higher than that of a common ultraviolet lamp, the ultraviolet pulse laser has higher sterilization efficiency, and 99.99 percent of bacteria in the air can be killed in a few seconds.
3. The laser sterilization and the filter screen dust removal technology are combined, so that bacteria and viruses in the air can be effectively killed, and tiny particles in the air can be effectively filtered.
The invention has the beneficial effects that: the device can realize the functions of impurity adsorption, bacterial killing and air purification in the air, can be opened for a long time and realize man-machine coexistence, and has higher sterilization efficiency. The device improves the efficiency of air sterilization and has higher practical value.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Wherein, 1 is a shell, 2 is an inlet filter screen, 3 is an air inlet fan, 4 is an air inlet pipe, 5 is a stabilized voltage power supply, 6 is an ultraviolet pulse laser, 7 is a laser power supply device, 8 is an integrating sphere shell, 9 is an optical integrating sphere, 10 is an exhaust pipe, 11 is an exhaust fan, 12 is an outlet filter screen, and 13 is a control panel. An integrating sphere air inlet pipe 14 and an integrating sphere air outlet pipe 15.
Detailed Description
A sterilizing equipment for air purification based on ultraviolet pulse laser, including outer casing 1 and stabilized voltage supply 5, wherein, the stabilized voltage supply 5 is in outer casing 1, characterized by, still there are ultraviolet pulse laser 6 and laser power supply unit 7 on the bottom in outer casing 1, the stabilized voltage supply 5 is connected with laser power supply unit 7, the laser power supply unit 7 is connected with ultraviolet pulse laser 6 again; an optical integrating sphere 9 is arranged on the ultraviolet pulse laser 6, and a laser light outlet of the ultraviolet pulse laser 6 is hermetically connected with an inlet in the middle of the bottom of the optical integrating sphere 9; an integrating sphere shell 8 is arranged outside the optical integrating sphere 9, and the optical integrating sphere 9 is fixed in the integrating sphere shell 8; an air inlet pipe 4 and an air outlet pipe 10 are arranged on the shell 1, an integrating sphere air inlet pipe 14 and an integrating sphere air outlet pipe 15 are synchronously arranged on the corresponding optical integrating sphere 9 and the integrating sphere shell 8, the air inlet pipe 4 is hermetically connected with the integrating sphere air inlet pipe 14, and the air outlet pipe 10 is hermetically connected with the integrating sphere air outlet pipe 15; an air inlet machine 3 is arranged at the outer end of the air inlet pipe 4, and an inlet filter screen 2 is arranged at the outer end of the air inlet machine 3; an exhaust fan 11 is arranged at the outer end of the exhaust pipe 10, and an outlet filter screen 12 is arranged at the outer end of the exhaust fan 11; a control panel 13 is arranged on the upper surface of the integrating sphere shell 8, and the control panel 13 is connected with the laser power supply device 7 through an RS232 connecting line;
the laser wavelength range emitted by the ultraviolet pulse laser 6 is 220nm-280 nm.
The integrating sphere air inlet pipe 14 and the integrating sphere air outlet pipe 15 are both arc-shaped curved channels, so that the laser reflected in the optical integrating sphere 9 cannot be emitted out of the air inlet pipe 4 and the air outlet pipe 10 linearly.
The inner wall of the optical integrating sphere 9 is plated with polytetrafluoroethylene which is a coating material with excellent diffuse reflection performance, and ultraviolet pulse laser which is directly irradiated on the inner wall can be diffusely reflected to each area in the optical integrating sphere 9 to form a uniform optical field.
The meshes of the inlet filter screen 2 and the outlet filter screen 12 are side length; less than or equal to 0.3 micron.
The wavelength emitted by the ultraviolet pulse laser 6 is 266.455nm, and the power of the ultraviolet pulse laser 6 is not less than 750 mW.
The present invention will be further described with reference to the following embodiments.
The invention as shown in figure 1 comprises a housing 1, wherein a stabilized voltage power supply 5, an ultraviolet pulse laser 6, a laser power supply device 7 and an optical integrating sphere 9 are arranged in the housing 1. The shell is provided with an air inlet and an air outlet, the air inlet is provided with a filter screen 2, the air outlet is provided with a filter screen 12, and the filter screen can absorb and filter particles with the particle size of more than 0.3 micron in the air; the integrating sphere 9 is fixed on the shell 8 of the integrating sphere; an air inlet and an air outlet are synchronously formed on the integrating sphere 9 and the integrating sphere shell 8; the shell is simultaneously provided with an air inlet fan 3 and an exhaust fan 11; the air inlet and the air outlet on the shell are connected with the air inlet and the air outlet on the integrating sphere shell through the air inlet pipe 4 and the air exhaust pipe 10; the air inlet machine 3 can suck the air filtered by the filter screen 3 into the integrating sphere 9 through the air inlet pipe 4; the ultraviolet pulse laser 6 can emit ultraviolet pulse laser with the wavelength of 266.455nm and the average power of 750mW and directly irradiate the ultraviolet pulse laser into the integrating sphere 9; the ultraviolet pulse laser 6 is connected with the integrating sphere 9 through an optical fiber; the inner wall of the integrating sphere 9 is plated with coating material Polytetrafluoroethylene (PTFE) with excellent diffuse reflection performance, and ultraviolet pulse laser directly irradiating the inner wall can be diffusely reflected to each area of the integrating sphere to form a uniform light field; the even light field can kill bacterium and virus in the air, when the air enters into integrating sphere 9's inside, even light field kill bacterium and virus in the air in the twinkling of an eye to utilize exhaust fan 11 to discharge clean air at the air exit, realize circulated air sterilization air purification's function, control panel 13 can control opening and closing and information such as frequency of ultraviolet pulse laser.
The invention relates to a sterilizing device for air purification based on ultraviolet pulse laser, which comprises a power supply device; the power supply device is fixed on the bottom plate of the shell, one end of the power supply device is connected with household 220V alternating current, and the other end of the power supply device is connected to the laser power supply device; the laser power supply device can supply power to the ultraviolet pulse laser device; the laser power supply device and the ultraviolet pulse laser device are both fixed on the shell; the ultraviolet pulse laser device can emit ultraviolet pulse laser, the wavelength of the ultraviolet pulse laser is 266.455nm, the average power is 750mW, the pulse time is 5.869ns, and the frequency can reach 7kHZ at most; pulse laser emitted by the ultraviolet pulse laser device is directly irradiated into the integrating sphere; the inner wall of the integrating sphere is coated with a reflecting film, and Polytetrafluoroethylene (PTFE) is adopted, so that the integrating sphere has good diffuse reflection performance, can reflect ultraviolet laser to all directions and fill the whole integrating sphere area to form a uniform optical field, and the uniformity of the optical field can reach 99%; the integrating sphere is provided with small holes at the left lower side and the right upper side, and the small holes are respectively an air inlet and an air outlet; the shell is also provided with an air inlet and an air outlet, and the air inlet and the air outlet are respectively provided with a filter screen, an air inlet fan and an exhaust fan; the filter screen is mainly used for filtering dust and particulate matters in the air; the fan is mainly used for sucking and discharging air; the air inlet and the air outlet on the shell are connected with the air inlet and the air outlet on the integrating sphere by air pipes; the ultraviolet pulse laser emitted by the ultraviolet pulse laser device can sterilize bacteria in the air; after the air inlet machine sucks outside air into the integrating sphere, the air is sterilized by ultraviolet pulse laser, and clean air is discharged from the air outlet by the exhaust fan, so that the function of sterilizing and purifying the air by circulating air is realized.
The working process of the device is as follows:
(1) based on user operation, completing system initialization and setting initial parameters;
(2) starting an ultraviolet pulse laser device, and starting an air inlet fan and an exhaust fan driving device after waiting for 30s because the laser device needs to be preheated after being started;
(3) the air is sucked by an air inlet device, firstly, particles with the particle size of more than 0.3 micrometer in the air are adsorbed by a filter screen, and then, the air is sucked into an integrating sphere;
(4) the bacteria and the viruses in the air are instantly killed by utilizing a uniform light field formed by laser emitted by an ultraviolet pulse laser inside an integrating sphere;
(5) the purified air is discharged outwards by utilizing the exhaust fan device, so that the function of circulating air purification is realized.
Claims (5)
1. A sterilizing device for air purification based on ultraviolet pulse laser comprises a shell (1) and a stabilized voltage power supply (5), wherein the stabilized voltage power supply (5) is arranged in the shell (1), and is characterized in that an ultraviolet pulse laser (6) and a laser power supply device (7) are further arranged at the bottom in the shell (1), the stabilized voltage power supply (5) is connected with the laser power supply device (7), and the laser power supply device (7) is connected with the ultraviolet pulse laser (6); an optical integrating sphere (9) is arranged on the ultraviolet pulse laser (6), and a laser light outlet of the ultraviolet pulse laser (6) is hermetically connected with an inlet in the middle of the bottom of the optical integrating sphere (9); an integrating sphere shell (8) is arranged outside the optical integrating sphere (9), and the optical integrating sphere (9) is fixed in the integrating sphere shell (8); an air inlet pipe (4) and an exhaust pipe (10) are arranged on the shell (1), an integrating sphere air inlet pipe (14) and an integrating sphere exhaust pipe (15) are synchronously arranged on the corresponding optical integrating sphere (9) and the integrating sphere shell (8), the air inlet pipe (4) is hermetically connected with the integrating sphere air inlet pipe (14), and the exhaust pipe (10) is hermetically connected with the integrating sphere exhaust pipe (15); an air inlet machine (3) is arranged at the outer end of the air inlet pipe (4), and an inlet filter screen (2) is arranged at the outer end of the air inlet machine (3); an exhaust fan (11) is arranged at the outer end of the exhaust pipe (10), and an outlet filter screen (12) is also arranged at the outer end of the exhaust fan (11); a control panel (13) is arranged on the upper surface of the integrating sphere shell (8), and the control panel (13) is connected with a laser power supply device (7) through an RS232 connecting line;
the laser wavelength range emitted by the ultraviolet pulse laser (6) is 220nm-280 nm.
2. The sterilizer for air purification based on ultraviolet pulse laser as claimed in claim 1, wherein said integrating sphere air inlet pipe (14) and said integrating sphere air outlet pipe (15) are curved channels, so that the laser reflected inside the optical integrating sphere (9) cannot be emitted straight out of the air inlet pipe (4) and the air outlet pipe (10).
3. The ultraviolet pulse laser-based sterilization device for air purification according to claim 1 or 2, wherein the inner wall of the optical integrating sphere (9) is coated with polytetrafluoroethylene which is a coating material with excellent diffuse reflection performance, so that the ultraviolet pulse laser directly irradiating the inner wall can be diffusely reflected to each area in the optical integrating sphere (9) to form a uniform light field.
4. The ultraviolet pulse laser based sterilization apparatus for air purification according to claim 1, 2 or 3, wherein the mesh side lengths of the inlet filter (2) and the outlet filter (12); less than or equal to 0.3 micron.
5. The sterilizer for air purification based on ultraviolet pulse laser as claimed in claim 1, 2 or 3, wherein the wavelength emitted by said ultraviolet pulse laser (6) is 266.455nm, and the power of said ultraviolet pulse laser (6) is not less than 750 mW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011335166.0A CN112413796A (en) | 2020-11-25 | 2020-11-25 | Sterilizing equipment for air purification based on ultraviolet pulse laser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011335166.0A CN112413796A (en) | 2020-11-25 | 2020-11-25 | Sterilizing equipment for air purification based on ultraviolet pulse laser |
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| Publication Number | Publication Date |
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| CN112413796A true CN112413796A (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011335166.0A Pending CN112413796A (en) | 2020-11-25 | 2020-11-25 | Sterilizing equipment for air purification based on ultraviolet pulse laser |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113406794A (en) * | 2021-06-23 | 2021-09-17 | 辽宁大学 | Laser optical path system with laser biological inactivation function |
| CN113531742A (en) * | 2021-07-19 | 2021-10-22 | 中国科学院长春光学精密机械与物理研究所 | Ultraviolet laser pulse air purifier |
| CN113844644A (en) * | 2021-11-08 | 2021-12-28 | 广东国志激光技术有限公司 | Laser disinfection unmanned aerial vehicle for outdoor aircraft |
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2020
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| CN2621047Y (en) * | 2003-05-15 | 2004-06-23 | 北京航空航天大学 | Air disinfection purification apparatus |
| CN2885259Y (en) * | 2005-12-20 | 2007-04-04 | 张国蜀 | Whole-waveband ultraviolet air purifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113406794A (en) * | 2021-06-23 | 2021-09-17 | 辽宁大学 | Laser optical path system with laser biological inactivation function |
| CN113531742A (en) * | 2021-07-19 | 2021-10-22 | 中国科学院长春光学精密机械与物理研究所 | Ultraviolet laser pulse air purifier |
| CN113844644A (en) * | 2021-11-08 | 2021-12-28 | 广东国志激光技术有限公司 | Laser disinfection unmanned aerial vehicle for outdoor aircraft |
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Application publication date: 20210226 |