CN112641989A - Ultraviolet disinfection device - Google Patents
Ultraviolet disinfection device Download PDFInfo
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- CN112641989A CN112641989A CN202011577458.5A CN202011577458A CN112641989A CN 112641989 A CN112641989 A CN 112641989A CN 202011577458 A CN202011577458 A CN 202011577458A CN 112641989 A CN112641989 A CN 112641989A
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- ultraviolet
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- light source
- reflection
- disinfection apparatus
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- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 45
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 2
- 230000001954 sterilising effect Effects 0.000 description 5
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- 208000035473 Communicable disease Diseases 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The present invention provides an ultraviolet disinfection apparatus, comprising: an ultraviolet light source, a reflective cavity; the inner surface of the reflection cavity is provided with a reflection surface, the reflection surface is at least one part of an elliptic cylindrical surface, the emergent light direction of the ultraviolet light source is aligned with the focus of the elliptic cylindrical surface, and light beams emitted by the ultraviolet light source are concentrated to an elliptic major axis region through multiple reflections of the reflection surface. The invention adopts ultraviolet rays as a disinfection means, the irradiation energy is large, and the disinfection effect is good; the light beam containing ultraviolet rays is reflected for multiple times in the reflecting cavity and finally concentrated to the long axis area of the ellipse, so that the irradiation energy of the ultraviolet rays is enhanced, and the disinfection effect is improved; ultraviolet rays do not emit out of the reflection cavity in the whole reflection process, ultraviolet rays are prevented from being leaked, and then the ultraviolet rays are prevented from harming human bodies.
Description
Technical Field
The invention relates to the field of purification and disinfection, in particular to an ultraviolet disinfection device.
Background
In intensive personnel places such as hospitals, railway stations, airport waiting halls, large stadiums and the like, various bacteria and viruses are bred, deposited and propagated, and a large amount of particles such as dust are free, so that various diseases, infectious disease infection, even cross infection and the like are caused, and the health of people is influenced. In these places, purification and disinfection are often required, and the disinfection methods commonly used at present are chemical disinfection and ultraviolet (physical) disinfection.
The principle of ultraviolet sterilization and disinfection is that ultraviolet rays with proper wavelength are utilized to destroy the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in microbial organism cells, so that growth cells and/or regeneration cells are killed, and the sterilization and disinfection effects are achieved. The ultraviolet disinfection technology is based on modern epidemic prevention science, medicine and photodynamics, and is used for directly killing various bacteria, viruses, parasites, algae and other pathogens by irradiating the bacteria, the viruses, the parasites, the algae and the other pathogens by using specially designed UVC wave band ultraviolet light with high efficiency, high intensity and long service life.
The ultraviolet disinfection method of ultraviolet ray to indoor air mainly utilizes the ultraviolet ray emitted by ultraviolet lamp to irradiate the air in the indoor environment with high requirement for air cleanliness of dressing room, laboratory, etc. to implement sterilization and disinfection function. The ultraviolet sterilization has the advantages of no color, no smell and no chemical substance left. But if no protective measures are taken, the human body is extremely easy to be greatly injured. If the naked skin is irradiated by the ultraviolet lamp, the mild person can have red swelling, pain and itch and desquamation; even serious cases may cause canceration, skin tumor, etc. Therefore, the existing ultraviolet disinfection must be carried out under the condition of no person in the room, and the ultraviolet lamp is adopted for suspension type or movable type direct irradiation, so that the method is not suitable for public places with dense personnel and frequent access, such as airports, railway stations and the like.
Disclosure of Invention
The invention provides an ultraviolet disinfection device, which aims to solve the problem that common ultraviolet disinfection cannot be carried out in public places.
In order to achieve the purpose, the invention adopts the following specific technical scheme:
an ultraviolet disinfection device comprising: an ultraviolet light source, a reflective cavity; the inner surface of the reflection cavity is provided with a reflection surface, the reflection surface is at least one part of an elliptic cylindrical surface, the emergent light direction of the ultraviolet light source is aligned with the focus of the elliptic cylindrical surface, and light beams emitted by the ultraviolet light source are concentrated to an elliptic major axis region through multiple reflections of the reflection surface.
Preferably, the ultraviolet disinfection device is an air disinfection device comprising an air inlet and an air outlet.
Preferably, an air inlet and an air outlet are provided on the reflective cavity, the air inlet and the air outlet being parallel to the major axis of the ellipse, the air flowing direction being perpendicular to the major axis of the ellipse.
Preferably, the light beams emitted by the ultraviolet light source reach the area of the elliptic cylindrical surface and are all covered by the reflecting surface.
Preferably, the reflecting surface comprises a first elliptical reflecting surface and a second elliptical reflecting surface which are arranged in bilateral symmetry; emergent light of the ultraviolet light source is perpendicular to the long axis of the ellipse and is reflected on the first elliptical reflecting surface to the second elliptical reflecting surface.
Preferably, the light outlet of the laser light source is connected with the light inlet of the reflection cavity; the ultraviolet light source emits a beam of light containing ultraviolet light that is directed into the reflective cavity to disinfect air in the reflective cavity.
Preferably, the ultraviolet light source is an ultraviolet laser emitter.
Preferably, the reflection chamber is further provided with an air exchanger for continuously performing air exchange, discharging sterilized air, and introducing non-sterilized air.
The invention can obtain the following technical effects:
(1) the ultraviolet rays are adopted as a disinfection means, so that the irradiation energy is large and the disinfection effect is good;
(2) the light beam containing ultraviolet rays is reflected for multiple times in the reflecting cavity and finally concentrated to the long axis area of the ellipse, so that the irradiation energy of the ultraviolet rays is enhanced, and the disinfection effect is improved;
(3) ultraviolet rays do not emit out of the reflection cavity in the whole reflection process, ultraviolet rays are prevented from being leaked, and then the ultraviolet rays are prevented from harming human bodies.
Drawings
FIG. 1 is a schematic structural diagram of an ultraviolet disinfection apparatus according to an embodiment of the present invention;
FIG. 2 is a perspective view of a reflective cavity of an embodiment of the present invention;
fig. 3 is a schematic view of the working principle of the ultraviolet disinfection device of the embodiment of the invention.
Wherein the reference numerals include: the ultraviolet light source comprises an ultraviolet light source 1, a reflecting cavity 2, an air inlet 21, an air outlet 22, a first elliptical reflecting surface 23, a second elliptical reflecting surface 24, incident light 3, first emergent light 4 and second emergent light 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1 and 2, an ultraviolet disinfection device comprises: an ultraviolet light source 1 and a reflecting cavity 2; the inner surface of the reflecting cavity 2 is provided with a reflecting surface which is at least one part of an elliptic cylindrical surface, the emergent direction of the light beam of the ultraviolet light source 1 is aligned with the focus of the elliptic cylindrical surface, and the light beam containing ultraviolet rays emitted by the ultraviolet light source 1 is concentrated to an elliptic major axis region through multiple reflections of the reflecting surface; play the effect of reinforcing ultraviolet irradiation energy through ultraviolet ray stack many times, treat that the disinfection material is arranged in reflection chamber 2, perhaps when passing reflection chamber 2, can play better disinfection effect.
As shown in fig. 1, in one embodiment of the present invention, the ultraviolet sterilizing device is an air sterilizing device including an air inlet 21 and an air outlet 22; air exchange takes place via the air inlet 21 and the air outlet 22.
As shown in fig. 1, in one embodiment of the present invention, an air inlet 21 and an air outlet 22 are provided on the reflective chamber 2, the air inlet 21 and the air outlet 22 are parallel to the major axis of the ellipse, and the flow direction of the air is perpendicular to the major axis of the ellipse; the air inlet 21 and the air outlet 22 are arranged in this way, so that the air exchange area is increased, the air flow is increased and the air sterilization efficiency is improved while the reflection of ultraviolet rays is not influenced.
In one embodiment of the invention, the light beams emitted by the ultraviolet light source 1 reach the area of the elliptic cylindrical surface and are all covered by the reflecting surface; prevent ultraviolet rays from being emitted out of the reflection cavity 2 to hurt human bodies.
As shown in fig. 2, the reflecting surface includes a first elliptical reflecting surface 23 and a second elliptical reflecting surface 24 which are arranged bilaterally symmetrically; emergent light of the ultraviolet light source 1 is perpendicular to the ellipse long axis, is reflected to the second ellipse reflecting surface 24 on the first ellipse reflecting surface 23, is reflected to the first ellipse reflecting surface 23 through the second ellipse reflecting surface 24, and is concentrated to the ellipse long axis area through multiple reflection between the first ellipse reflecting surface 23 and the second ellipse reflecting surface 24.
As shown in fig. 2, in an embodiment of the present invention, the light outlet of the ultraviolet light source 1 is connected to the light inlet of the reflective cavity 2; the ultraviolet light source 1 emits a light beam containing ultraviolet rays, which is incident into the reflective chamber 2, reflected in the reflective chamber 2, and disinfects the air in the reflective chamber 2.
In one embodiment of the present invention, the ultraviolet light source 1 is an ultraviolet laser emitter; the ultraviolet laser emitter is used as an ultraviolet light source, so that the size of the ultraviolet light source can be reduced, the energy of ultraviolet rays can be improved, and the disinfection effect can be improved.
In one embodiment of the invention, the reflection chamber 2 is further provided with an air exchanger for continuously exchanging air, discharging sterilized air and introducing non-sterilized air; the air exchanger is used for air exchange, so that the air sterilization efficiency can be increased.
The working principle of the present invention is explained in detail below with reference to fig. 3:
as shown in fig. 3, the ultraviolet light source 1 generates a shaped narrow strip-shaped incident light 3, the incident light 3 enters the reflective cavity 2 from the light inlet of the reflective cavity 2 in a direction perpendicular to the long axis of the elliptical reflective surface, passes through the focal point F1 of the elliptical reflective surface, generates a first reflection at the point a on the first elliptical reflective surface 23 on the left side, and forms a first outgoing light 4, and according to the optical properties of the elliptical reflective surface, the first outgoing light 4 passes through another focal point F2 of the elliptical reflective surface, generates a second reflection at the point B on the second elliptical reflective surface 24 on the right side, and the second outgoing light 5 passes through the focal point F1 again, and forms an angle β with the long axis of the elliptical reflective surface. Through multiple reflection, the included angle beta gradually tends to 0, multiple reflection superposition is formed in the long axis area of the elliptical reflecting surface by ultraviolet rays, the ultraviolet irradiation energy at the position is enhanced, and meanwhile, the reflecting area of the light beam is limited, so that the light beam can be reflected only in the long axis area of the elliptical reflecting surface and cannot be leaked into the environment to cause damage to a human body.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be taken as limiting the invention. Variations, modifications, substitutions and alterations of the above-described embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.
The above embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. An ultraviolet disinfection apparatus, comprising: an ultraviolet light source, a reflective cavity; the inner surface of the reflection cavity is provided with a reflection surface, the reflection surface is at least one part of an elliptic cylindrical surface, the emergent light direction of the ultraviolet light source is aligned to the focus of the elliptic cylindrical surface, and light beams emitted by the ultraviolet light source are reflected to an elliptic major axis area for multiple times through the reflection surface and are concentrated.
2. The ultraviolet disinfection apparatus of claim 1, wherein the ultraviolet disinfection apparatus is an air disinfection apparatus comprising an air inlet and an air outlet.
3. The uv disinfection apparatus of claim 2, wherein said air inlet and said air outlet are disposed on said reflective chamber, said air inlet and said air outlet being parallel to said elliptical major axis, the direction of air flow being perpendicular to said elliptical major axis.
4. The uv disinfection apparatus of claim 1, wherein the area of the elliptical cylinder where the beam of light from the uv light source reaches is covered by the reflective surface.
5. The ultraviolet disinfection apparatus of claim 1, wherein the reflective surface comprises a first elliptical reflective surface and a second elliptical reflective surface arranged in bilateral symmetry; emergent light of the ultraviolet light source is perpendicular to the long axis of the ellipse and is reflected on the first elliptical reflecting surface to the second elliptical reflecting surface.
6. The ultraviolet disinfection apparatus of claim 1, wherein the light outlet of the ultraviolet light source is connected to the light inlet of the reflective cavity; the ultraviolet light source emits a light beam containing ultraviolet rays, and the light beam is emitted into the reflection cavity to disinfect air in the reflection cavity.
7. The uv disinfection apparatus of claim 1, wherein the uv light source is a uv laser emitter.
8. The uv disinfection apparatus of claim 1, wherein said reflective chamber is further provided with an air exchanger for continuously exchanging air to discharge disinfected air and introduce non-disinfected air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011577458.5A CN112641989A (en) | 2020-12-28 | 2020-12-28 | Ultraviolet disinfection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011577458.5A CN112641989A (en) | 2020-12-28 | 2020-12-28 | Ultraviolet disinfection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112641989A true CN112641989A (en) | 2021-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011577458.5A Pending CN112641989A (en) | 2020-12-28 | 2020-12-28 | Ultraviolet disinfection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN112641989A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1182407A (en) * | 1995-04-21 | 1998-05-20 | 电气联合股份有限公司 | UV-reflector forming a part of a UV-device for purification of liquid or gas, preferably water |
| US20130236353A1 (en) * | 2011-09-08 | 2013-09-12 | Jörg Blechschmidt | Device for disinfecting gases and/or liquids |
| CN111319423A (en) * | 2020-03-04 | 2020-06-23 | 广汽蔚来新能源汽车科技有限公司 | Vehicle, air conditioning system, air duct and sterilization method |
| CN111420108A (en) * | 2020-05-22 | 2020-07-17 | 中国科学院长春应用化学研究所 | Circulating air multi-directional ultraviolet irradiation disinfection system and disinfection device with same |
| CN111895541A (en) * | 2020-08-18 | 2020-11-06 | 华中科技大学 | Sterilizing device of central air conditioner |
-
2020
- 2020-12-28 CN CN202011577458.5A patent/CN112641989A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1182407A (en) * | 1995-04-21 | 1998-05-20 | 电气联合股份有限公司 | UV-reflector forming a part of a UV-device for purification of liquid or gas, preferably water |
| US20130236353A1 (en) * | 2011-09-08 | 2013-09-12 | Jörg Blechschmidt | Device for disinfecting gases and/or liquids |
| CN111319423A (en) * | 2020-03-04 | 2020-06-23 | 广汽蔚来新能源汽车科技有限公司 | Vehicle, air conditioning system, air duct and sterilization method |
| CN111420108A (en) * | 2020-05-22 | 2020-07-17 | 中国科学院长春应用化学研究所 | Circulating air multi-directional ultraviolet irradiation disinfection system and disinfection device with same |
| CN111895541A (en) * | 2020-08-18 | 2020-11-06 | 华中科技大学 | Sterilizing device of central air conditioner |
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Application publication date: 20210413 |