CN116036338A - Air sterilization device - Google Patents
Air sterilization device Download PDFInfo
- Publication number
- CN116036338A CN116036338A CN202211682882.5A CN202211682882A CN116036338A CN 116036338 A CN116036338 A CN 116036338A CN 202211682882 A CN202211682882 A CN 202211682882A CN 116036338 A CN116036338 A CN 116036338A
- Authority
- CN
- China
- Prior art keywords
- ultraviolet
- air
- light source
- component
- multiplication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 65
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 51
- 230000005855 radiation Effects 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims description 6
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical group [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 4
- 229910052753 mercury Inorganic materials 0.000 claims description 4
- 238000002310 reflectometry Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229910010272 inorganic material Inorganic materials 0.000 claims description 3
- 239000011147 inorganic material Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 3
- 239000011368 organic material Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims 1
- 238000009423 ventilation Methods 0.000 abstract description 10
- 239000010408 film Substances 0.000 description 8
- 241000191963 Staphylococcus epidermidis Species 0.000 description 7
- 230000000844 anti-bacterial effect Effects 0.000 description 7
- 238000005286 illumination Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000011324 bead Substances 0.000 description 5
- 241000700605 Viruses Species 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000002779 inactivation Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001580 bacterial effect Effects 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920000295 expanded polytetrafluoroethylene Polymers 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012788 optical film Substances 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 229910002601 GaN Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- RNQKDQAVIXDKAG-UHFFFAOYSA-N aluminum gallium Chemical compound [Al].[Ga] RNQKDQAVIXDKAG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
Images
Classifications
-
- 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—Ultraviolet radiation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
- F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Epidemiology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses an air sterilization device, which relates to the technical field of air sterilization and comprises a shell, an ultraviolet light source assembly and an ultraviolet restraint multiplication assembly, wherein the ultraviolet light source assembly is used for radiating ultraviolet rays, and the ultraviolet restraint multiplication assembly is arranged through the shape, the distance and the radiation angle of the ultraviolet light source so as to multiply and restrain the energy of the ultraviolet rays in the assembly; the shell is used for fixing the ultraviolet light source component and the ultraviolet restraint multiplication component, and an air inlet and an air outlet for ventilation are formed in the shell. The air sterilization device provided by the invention has the advantages of simple structure and high sterilization efficiency, limits ultraviolet rays between reflecting surfaces, does not leak ultraviolet rays, does not damage equipment spare parts and materials or cause ultraviolet rays to human bodies, and can be widely used for air conditioners, air purifiers, vehicle-mounted air conditioners, and air inlet or air circulation systems of home, factories, schools, super-business and the like.
Description
Technical Field
The invention relates to the technical field of air sterilization, in particular to an air sterilization device.
Background
Ultraviolet rays can effectively inactivate bacterial viruses, so that the method becomes a common sterilization means. In recent years, ultraviolet light emitting diodes based on aluminum gallium nitride materials are rapidly developed, and as compared with the traditional mercury lamp, the ultraviolet light emitting diode lamp has the advantages of small volume, no mercury, high response speed, low-voltage light source and the like, and is widely applied to the fields of surface sterilization, liquid sterilization, air sterilization and the like.
With the increasing awareness, people are increasingly aware that air transmission is a large transmission mode of virus transmission, so that effective sterilization of air is an effective way for blocking virus transmission. However, the traditional method is to sterilize by spraying, which is time-consuming and labor-consuming and also easy to cause secondary pollution. The ultraviolet sterilization is a common sterilization means because the ultraviolet can inactivate bacteria and viruses, in recent years, a novel physical sterilization mode is to add an ultraviolet sterilization module on an air conditioner and an air purifier, and the sterilization of the air is completed through the circulation of the air.
Disclosure of Invention
Aiming at the technical problem that the prior art is too single, the technical scheme of the invention provides a solution which is obviously different from the prior art, and the embodiment of the invention provides an air sterilization device so as to solve the technical problems that the prior physical sterilization mode needs a long time when in use and has lower sterilization rate.
The embodiment of the invention adopts the following technical scheme: an air sterilization device comprises a shell, an ultraviolet light source assembly for radiating ultraviolet light and an ultraviolet restraint multiplication assembly which multiplies the energy of the ultraviolet light and restrains the energy in the assembly through the shape, the distance and the radiation angle of the ultraviolet light source; the shell is used for fixing the ultraviolet light source component and the ultraviolet constraint multiplication component, an air inlet and an air outlet for air circulation are formed in the shell, the air inlet is formed in the top of the shell in a penetrating mode, the air outlet is formed in the bottom of the shell in a penetrating mode, the ultraviolet constraint multiplication component is arranged between the air inlet and the air outlet, and the ultraviolet light source component is arranged in the ultraviolet constraint multiplication component.
Further, the ultraviolet binding multiplication component is formed by at least one closed reflecting surface or at least two independent reflecting surfaces, when the ultraviolet binding multiplication component is a closed radiating surface, a spherical surface or a cylindrical surface is adopted to form the closed surface, and when the ultraviolet binding multiplication component is formed by at least two independent reflecting surfaces, the reflecting surface is formed by two or more curved surfaces or one plane and curved surface, and the curved surface is a cylindrical surface, a spherical surface, an ellipsoidal surface, a paraboloid or a part of the cylindrical surface, the spherical surface, the ellipsoidal surface, the paraboloid or the paraboloid.
As an alternative embodiment, when the reflecting surface is two opposite concave mirrors, the center-to-center distance of the concave mirrors is the focal length of the concave mirrors, the ultraviolet light source is disposed at the center of the surface, for convenience in manufacturing, the concave surface is generally a spherical concave mirror, the center of the first concave mirror is also the focal point of the second concave mirror, the UVC LED disposed at the center of the first concave mirror may be regarded as a point light source, the light emitted by the UVC LED is reflected to become parallel light after striking the second concave mirror, and the reflected parallel light irradiates the first concave mirror and is reflected again to converge on the center of the second concave mirror, so that after repeated reflection, the ultraviolet illuminance can be multiplied between the two concave mirrors, so long as the UVC LED light source with a suitable radiation angle is selected according to the size of the concave mirror, the ultraviolet light can be bound in the reflection multiplication component, in addition, for obtaining a better optical effect, in addition, for simplifying the process, the plane mirror where the light source is located can be replaced by the plane mirror, and the same effect can be obtained.
As an alternative implementation mode, when the reflecting surfaces are two parallel planes, the reflection is repeated through the two parallel reflecting surfaces, the light intensity is multiplied, meanwhile, in order to be capable of binding most of ultraviolet energy in the reflection multiplication component, the reflection multiplication component needs to be modulated according to the conditions that the distance between the reflecting surfaces is D, the edge of a light source is a length L from the reflecting surfaces, the radiation angle of the light source is 2 theta, and the reflectivity of the reflecting surfaces is R, and the condition that L is more than or equal to D multiplied by gtheta multiplied by 1/(1-R) is preferably adopted, so that the escape of ultraviolet rays can be reduced more effectively, and the fact that when an ultraviolet light source is a collimated light source, the L does not need to be long to bind ultraviolet rays, and the value of the corresponding L needs to be larger as the radiation angle of the light source is larger.
As an alternative embodiment, when the reflecting surface is a cylindrical surface, wherein the diameter of the circle is D, the length L of the light source from the edge of the reflecting surface, the radiation angle of the light source is 2 theta, and the reflectivity of the reflecting surface is R, L.gtoreq.Dttgtheta.times.1/(1-R) should preferably be satisfied in order to effectively bind most of the ultraviolet energy within the multiplication assembly.
As an alternative, the reflective surface material is an inorganic material coating, an organic material film, or a highly reflective dielectric film, preferably a material with an ultraviolet reflectance higher than 90%, and it is known from the optical common knowledge that the higher the reflectance of the reflective surface, the more the number of ultraviolet reflections, and the stronger the ultraviolet illuminance in the space between the reflective surfaces.
As an alternative embodiment, when it is desired to obtain a good sterilizing effect more quickly, the air sterilizer may be used in series or in parallel with a plurality of air sterilizer.
As an alternative embodiment, the uv light source comprises a mercury lamp, an LED lamp, preferably an uv LED with easily modulated radiation angle and smaller size as the light source, the smaller light source reducing reflection losses when uv light is reflected between the reflecting surfaces.
As an alternative embodiment, the shell is metal, nonmetal or a combination of the metal and nonmetal, preferably plastic, ferroalloy, aluminum alloy or a combination with low manufacturing cost and mature processing technology.
As an alternative embodiment, the reflective component material may be a coating of inorganic material such as barium sulfate, or the reflective component material may be a microporous polytetrafluoroethylene film, a thin film of organic material such as a thin polytetrafluoroethylene film, or the reflective component material may be a high-reflection dielectric film with alternating high and low refractive indices, such as a multi-layer dielectric film of MgF2 and ZrO 2.
As an alternative embodiment, when the ultraviolet light source is disposed on the reflecting surface, the reflecting material needs to be provided with an opening at the light source position, and the opening size is generally 1-5 times that of the light source, preferably 1-1.5 times that of the light source, so as to minimize the influence of the opening on the ultraviolet light emission between the reflecting surfaces.
Compared with the prior art, the invention has the beneficial effects that:
the device has the advantages that the device is simple in structure, high in sterilization efficiency, capable of limiting ultraviolet rays between reflecting surfaces through the ultraviolet binding multiplication assembly, capable of reflecting the ultraviolet rays for multiple times through the radiating surfaces in the ultraviolet binding assembly, capable of preventing the ultraviolet rays from continuing to reflect under the action of the inner wall when the circulating air enters the area from the air inlet, capable of preventing the circulating air from leaking, capable of avoiding damage to equipment spare parts and materials or ultraviolet damage to human bodies, and widely applicable to air conditioners, vehicle-mounted air conditioners, air inlet factories, schools, air circulation systems and the like;
when the ventilation air is sterilized, the sterilizing effect is related to the illumination intensity of the ultraviolet light source, meanwhile, the sterilizing effect is also related to the time of ventilation air and ultraviolet light, when the ventilation air is in contact with ultraviolet light for a longer time, the sterilizing effect is better, when the ultraviolet light is utilized for sterilization, the ultraviolet light source is always in a direct irradiation mode, so that the sterilizing effect is stronger at the place, which is closer to the ultraviolet light source, in the sterilizing channel, but the effective sterilizing irradiation range of the ultraviolet light source is limited, the ultraviolet light intensity is concentrated on a single straight line directly irradiated by the light source, and then the phenomenon that the contact time of the ventilation air and the ultraviolet light source is shorter is caused, namely the instant ultraviolet light sterilization. When the instantaneous high-intensity ultraviolet light is sterilized, the ultraviolet light irradiation intensity is mainly concentrated at the direct irradiation position of the light source, and ventilation air is irradiated by the high-intensity ultraviolet light in the light beam interval, but as the air is ventilation air, the problem that lower air far away from the light source is not fully irradiated by the ultraviolet light in the instantaneous speed is extremely easy to occur in the integral air, so that the instantaneous sterilization effect of the lower air is poor. The application can increase ultraviolet light source's irradiation range under the prerequisite that does not change ultraviolet light source irradiation intensity through ultraviolet ray constraint multiplication subassembly for all flood ultraviolet light in the whole passageway that disinfects, ultraviolet ray illumination intensity is comparatively even in the passageway that disinfects entirely, when ventilation air enters into the passageway that disinfects this moment, ventilation air also can increase by a wide margin with ultraviolet light's contact time, so the ultraviolet ray constraint multiplication subassembly that adopts in this application can greatly increase ultraviolet light source to the bactericidal effect of air. On the premise that ultraviolet light does not overflow, the method can fully irradiate each air unit with high ultraviolet irradiation intensity for a long time far more than the sterilization effect of instantaneously irradiating one air unit with high-intensity ultraviolet light for a short time;
and thirdly,: the sterilization uniformity is affected by the irradiation direction of ultraviolet light, so that the instantaneous short-time high-intensity ultraviolet light irradiation cannot rapidly sterilize the air at the positions of the upper layer, the lower layer and the like in the circulating gas, uneven air flow sterilization at the lower layer of an air unit can occur, some air units are sufficiently sterilized, and some air units are not sufficiently irradiated for sterilization, so that the circulating gas still possibly carries a certain amount of gas which cannot be completely sterilized. This application can change ultraviolet irradiation direction through ultraviolet constraint multiplication subassembly for there is the ultraviolet ray of different directions in the whole passageway that disinfects, when the circulation air that has the air current that rolls this moment enters into the passageway that disinfects, the ultraviolet ray can not only shine upper air, can shine lower floor's air simultaneously, and owing to there is the air current that rolls, gas itself position also can change, the ultraviolet ray can make the air that circulates upper strata lower floor etc. department of gaseous all can obtain the multi-angle of the ultraviolet light of uniform intensity fully shining this moment.
To sum up, the ultraviolet ray that the ultraviolet light source sent in this application can accomplish quick even effectual disinfecting to the ventilation air that enters into between the ultraviolet restraint multiplication subassembly through the air inlet, and the circulation of rethread air accomplishes the disinfection to the air in the great space in the short time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of example 1;
FIG. 2 is a top view of the UV light source and the reflective surface in example 1;
FIG. 3 is a graph showing illuminance distribution on line A-A in the sterilization chamber of example 1 and comparative example;
FIG. 4 is a schematic cross-sectional view of example 2;
FIG. 5 is a graph showing illuminance distribution at line B-B in the sterilization chamber of example 2 and comparative example;
FIG. 6 is a schematic cross-sectional view of an air purifier according to example 3;
FIG. 7 is a schematic view of an air sterilizer of example 3;
FIG. 8 is a schematic view of a set of light sources and a reflective surface according to embodiment 3;
fig. 9 is a graph showing illuminance distribution on line C-C in the sterilization chamber of example 3 and comparative example.
Reference numerals:
in example 1: 101. a housing; 102. an air inlet; 103. an air outlet; 104. an ultraviolet light source assembly; 105. an ultraviolet binding multiplication assembly; 106. a sterilization cavity.
In example 2: 201. a housing; 202. an air inlet; 203. an air outlet; 204. an ultraviolet light source assembly; 205. an ultraviolet restraint multiplication assembly.
In example 3: 300. a sterilization device; 301. a housing; 302. an air inlet; 303. an air outlet; 304. an ultraviolet light source assembly; 305. an ultraviolet restraint multiplication assembly.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown.
The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 3, a first embodiment of the present invention provides an air sterilization apparatus, including a housing, an ultraviolet light source assembly for radiating ultraviolet light, and an ultraviolet restraint multiplying assembly configured to multiply and restrain energy of the ultraviolet light inside the assembly by a shape of a reflecting surface, a distance, and an irradiation angle of the ultraviolet light source; the shell is used for fixing the ultraviolet light source component and the ultraviolet constraint multiplication component, an air inlet and an air outlet for air circulation are formed in the shell, the air inlet is formed in the top of the shell in a penetrating mode, the air outlet is formed in the bottom of the shell in a penetrating mode, the ultraviolet constraint multiplication component is arranged between the air inlet and the air outlet, and the ultraviolet light source component is arranged in the ultraviolet constraint multiplication component.
The ultraviolet restraint multiplication component adopts a concave mirror with a large circle radius of 5cm, the surface center distance of the two concave mirrors is 2.5cm, the diameter of the concave mirror is 4cm, and the ultraviolet reflectivity of the concave mirror is 95%. The ultraviolet light source component adopts one UVC LED lamp bead with the radiation angle of 60 degrees, the radiation flux of the light source component is 20mW, the UVC LED lamp bead with the radiation angle of the light source component is approximately regarded as a point light source, after the UVC LED lamp bead is irradiated to a second concave mirror, the reflected light can become parallel light, the reflected parallel light irradiates the first concave mirror and is reflected again, the reflected parallel light is converged to the center of the second concave mirror, after repeated reflection, ultraviolet illumination can be multiplied between the two concave mirrors, at the moment, the central illumination of the ultraviolet constraint multiplication component reaches 300mW/cm, the average illumination reaches 26.6mW/cm, the annular area with the circular edge diameter of 3.5cm to 4cm is reduced to below 4mW/cm, the main energy is limited to be within the range of 3.5cm after the reflected light irradiates to the second concave mirror, compared with the ultraviolet constraint multiplication component, the ultraviolet constraint component is effectively improved in average illumination intensity of only by 20 mW/cm, and the ultraviolet constraint multiplication component is adopted, and the ultraviolet constraint component is only 20.6 mW/cm, and the average illumination intensity is increased, compared with the ultraviolet constraint component is adopted, and the ultraviolet constraint component is only has the average constraint intensity of 6 mW/1.
To further illustrate the obvious advantages of the technology of the invention, the air sterilizing device of the present embodiment is installed on a small-sized vehicle-mounted air purifier, and compared with the conventional multiplication-free sterilizing structure, the space of a simulated car is about 4cm, the air sterilizing device is started to sterilize, air is sterilized through an air circulation system, when the air sterilizing device is used, the air enters through an air inlet and enters into an ultraviolet restraint multiplication assembly along a circulation path, staphylococcus albus are scattered in the air, the survival rate of staphylococcus albus in the air is tested after 10 minutes of circulation, and the inactivation rate of staphylococcus albus in the air is about 50% by experiments. By adopting the structure of the embodiment, the inactivation rate of the staphylococcus albus reaches 99.99 percent.
Embodiment II,
As shown in fig. 4 and 5, in the second embodiment, the concave mirror where the light source is placed is replaced by a plane mirror, so that the installation and operation are more convenient, other conditions are unchanged, and after adjustment, the illuminance of the internal space of the ultraviolet restraint multiplication assembly is 22mW/cm on average, and is also improved by 13.75 times compared with the comparative example.
The sterilization experiment is carried out in the same manner as in the first embodiment, the fire extinguishing rate of staphylococcus albus reaches 99.98% after 10 minutes of circulation, and the fire extinguishing rate reaches 99.99% after 15 minutes of circulation.
Third embodiment,
In a third embodiment, as shown in fig. 6-9, the air sterilization device is disposed on an air purifier, the sterilization cavity of the air sterilization device in this embodiment adopts two parallel annular reflective surfaces, the reflective surfaces are as shown in fig. 7 and 8, the annular outer diameter is 300mm, the inner diameter is 100mm, the two reflective surfaces are 20mm apart, the ultraviolet light source adopts UVC LED lamp beads with a radiation angle of 25 degrees, the single radiation flux is 20mW, eight UVC LED lamp beads are symmetrically disposed on one of the parallel surfaces, the reflective surfaces adopts an optical medium film with a mirror surface emissivity of 95%, and the average illuminance of ultraviolet light is 2.8mW/cm in the space between the two parallel reflective surfaces, which is 11.7 times as compared with the case without the embodiment.
The scheme of this embodiment sets up on bigger air purifier for handle tens cubic meter to the space of hundreds cubic meter and disinfect, consider that the space is great, in order to obtain better bacterial and viral inactivation effect in the short time, the mirror image has set up two sets of sterilization chamber in the vertical direction in the air sterilization device in this embodiment, adopts two sterilization chambeies to establish ties promptly.
In order to demonstrate the effect, a sterilization test is performed on a space with a space of 30 cubic meters, staphylococcus albus is scattered in the air, a sterilization device is started, the survival rate of the staphylococcus albus in the air after 5 minutes and 10 minutes of the test cycle is respectively tested, when one sterilization cavity works, the sterilization rate is 98.7% and 99.98%, and when the two sterilization cavities work simultaneously, the sterilization rate is 99.98% and 99.9999%.
In this embodiment, the reflective film is an optical film deposited on a substrate, and in consideration of cost and process difficulty, expanded polytetrafluoroethylene with a diffuse ultraviolet reflectance of 97% which is easier to obtain and process may be used. As the expanded polytetrafluoroethylene is diffusely reflective, the ultraviolet illuminance in the sterilizing device is slightly lower than that of an optical film adopting specular reflection, and the sterilizing time is carried out under the same conditions, when the two sterilizing chambers work simultaneously, the sterilizing rates of 5 minutes and 10 minutes respectively reach 99.8 percent and 99.99 percent, and the ideal effect is obtained.
To sum up, the ultraviolet restraint multiplication subassembly in this application is through changing the inside radial surface shape of ultraviolet restraint multiplication subassembly under the prerequisite that does not change ultraviolet irradiation intensity, can be with the ultraviolet irradiation scope increase that the ultraviolet source sent, thereby increase circulation air and ultraviolet irradiation time, compare in high strength instantaneous ultraviolet irradiation, long-time even intensity ultraviolet irradiation bactericidal effect is better, if the ultraviolet irradiation intensity in summer is far stronger than the ultraviolet irradiation intensity in spring and autumn far away, shine one minute quilt bactericidal effect in summer but not spring and autumn shine half hour quilt bactericidal effect is good this moment, thereby prove compare in short-time high strength instantaneous bactericidal, long-time even intensity ultraviolet irradiation bactericidal effect is better, this application is through the ultraviolet irradiation time that increases circulation air in order to reach the bactericidal effect that increases the convection air.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (8)
1. An air sterilization device, comprising a housing, characterized in that; the ultraviolet ray binding multiplication component is used for multiplying the energy of ultraviolet rays and binding the energy of the ultraviolet rays in the ultraviolet ray binding multiplication component through the shape and the distance of the reflecting surface and the radiation angle of the ultraviolet ray source; the shell is used for fixing the ultraviolet light source component and the ultraviolet constraint multiplication component, an air inlet and an air outlet for air circulation are formed in the shell, the air inlet is formed in the top of the shell in a penetrating mode, the air outlet is formed in the bottom of the shell in a penetrating mode, the ultraviolet constraint multiplication component is arranged between the air inlet and the air outlet, and the ultraviolet light source component is arranged in the ultraviolet constraint multiplication component.
2. An air sterilizer as claimed in claim 1, wherein; the ultraviolet binding multiplication component is composed of at least one closed reflecting surface or at least two independent reflecting surfaces, when the ultraviolet binding multiplication component is a closed radiating surface, a spherical surface or a cylindrical surface is adopted to form the closed surface, and when the ultraviolet binding multiplication component is composed of at least two independent reflecting surfaces, the reflecting surface is composed of two or more curved surfaces or one plane and one curved surface, and the curved surface is a cylindrical surface, a spherical surface, an ellipsoidal surface, a paraboloid or a part of the cylindrical surface, the spherical surface, the ellipsoidal surface, the paraboloid or the paraboloid.
3. An air sterilizer as claimed in claim 1, wherein; when the reflecting surface is formed by two concave mirrors which are oppositely arranged, the center-to-center distance is the focal length of the concave mirrors, and the ultraviolet light source component is arranged at the center of the surface.
4. An air sterilizer as claimed in claim 1, wherein; when the reflecting surface is a cylindrical surface, wherein the diameter of the circle is D, the edge of the light source, which is far from the reflecting surface, is L, the radiation angle of the light source is 2 theta, and the reflectivity of the reflecting surface is R, and in order to effectively restrict most ultraviolet energy in the multiplication component, L is more than or equal to D multiplied by tgtheta multiplied by 1/(1-R) is satisfied.
5. An air sterilizer as claimed in claim 4, wherein; the reflecting surface material adopts an inorganic material coating, an organic material film or a high-reflection dielectric film.
6. An air sterilizer as claimed in claim 2, wherein; the edge of the reflecting surface is provided with an ultraviolet absorption layer for reducing ultraviolet ray escape.
7. An air sterilizer as claimed in claim 3, wherein; the ultraviolet light source component is a mercury lamp or an ultraviolet LED.
8. An air sterilizer as claimed in claim 1, wherein; the shell adopts metal, nonmetal or the combination of the two, the shell independently sets up or relies on external equipment structure to set up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211682882.5A CN116036338A (en) | 2022-12-27 | 2022-12-27 | Air sterilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211682882.5A CN116036338A (en) | 2022-12-27 | 2022-12-27 | Air sterilization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116036338A true CN116036338A (en) | 2023-05-02 |
Family
ID=86119225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211682882.5A Pending CN116036338A (en) | 2022-12-27 | 2022-12-27 | Air sterilization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116036338A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020002707A1 (en) * | 2020-05-06 | 2021-11-11 | Keming Du | Disinfection of air with the help of UVC laser beams |
| CN113827749A (en) * | 2021-08-18 | 2021-12-24 | 深圳市芯晶宇净化科技有限责任公司 | Deep ultraviolet LED sterilizing device |
| WO2022014523A1 (en) * | 2020-07-13 | 2022-01-20 | 株式会社AiDeal Tech | Air sterilization and virus inactivation device |
-
2022
- 2022-12-27 CN CN202211682882.5A patent/CN116036338A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020002707A1 (en) * | 2020-05-06 | 2021-11-11 | Keming Du | Disinfection of air with the help of UVC laser beams |
| WO2022014523A1 (en) * | 2020-07-13 | 2022-01-20 | 株式会社AiDeal Tech | Air sterilization and virus inactivation device |
| CN113827749A (en) * | 2021-08-18 | 2021-12-24 | 深圳市芯晶宇净化科技有限责任公司 | Deep ultraviolet LED sterilizing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6374403B2 (en) | Method and apparatus for liquid disinfection with light emitted from light emitting diodes | |
| JP7262985B2 (en) | Light source module device, Fluid sterilization device | |
| US7511281B2 (en) | Ultraviolet light treatment chamber | |
| US7560704B2 (en) | Method, device and system of illumination-based disinfection | |
| JP2016531746A (en) | Apparatus and method for liquid treatment with uniform dispersion of ultraviolet light | |
| WO2019151364A1 (en) | Ultraviolet sterilization tube and ultraviolet sterilization device | |
| WO2020054246A1 (en) | Fluid sterilization device | |
| JP2022062580A (en) | Ultraviolet light irradiation device, and method for use of ultraviolet light irradiation device | |
| JP2012223736A (en) | Apparatus for purification treatment of liquid | |
| CN212347217U (en) | Disinfection apparatus | |
| CN113827749A (en) | Deep ultraviolet LED sterilizing device | |
| CN113531742A (en) | Ultraviolet laser pulse air purifier | |
| CN210595370U (en) | Overflowing type water sterilizing device and water purifying equipment | |
| WO2022147878A1 (en) | Collimation-type water disinfection and purification apparatus | |
| CN116036338A (en) | Air sterilization device | |
| US20230390435A1 (en) | Filtering device for killing pathogenic microorganisms using deep ultraviolet laser | |
| CN209744633U (en) | Sterilizing device for air conditioner and air conditioner with same | |
| US20210330852A1 (en) | Ultraviolet irradiance optimization chamber | |
| JP2016175025A (en) | Cell for sterilization module, and sterilization module | |
| CN212511651U (en) | Sterilization system suitable for air purifier | |
| JP2022176043A (en) | Germ or virus inactivation device, and germ or virus inactivation processing method | |
| CN113694240A (en) | Man-machine coexisting air virus inactivation device | |
| CN112811506A (en) | Large-caliber overflowing type water purifying and sterilizing device | |
| RU197893U1 (en) | Germicidal UV LED Illuminator | |
| CN216061374U (en) | Deep ultraviolet LED sterilizing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |