CN1446587A - Air disinfects machine for indoor use - Google Patents
Air disinfects machine for indoor use Download PDFInfo
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- CN1446587A CN1446587A CN 03111559 CN03111559A CN1446587A CN 1446587 A CN1446587 A CN 1446587A CN 03111559 CN03111559 CN 03111559 CN 03111559 A CN03111559 A CN 03111559A CN 1446587 A CN1446587 A CN 1446587A
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- ultraviolet
- cylindrical body
- lamp tube
- indoor air
- ultraviolet lamp
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- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
A sterilizer for indoor air is composed of cylindrical casing with air inlet and air outlet and such units installed in said cylindrical casing as ultraviolet sterilizing lamp, ultraviolet ozone-decomposing lamp, ballast and blower, and features that the indoor air periodically passes through it to quickly kill the harmful bacteria and infections viruses it it. Its advantages are high effect, simple structure and long service life.
Description
Technical Field
The invention belongs to the technical field of indoor sterilization and disinfection, and particularly relates to an indoor air sterilizer for killing various germs by using ultraviolet rays.
Background
As is well known, the most common sterilization (disinfection) methods are physical and chemical pharmaceutical sterilization. The physical disinfection method is simple and easy to implement and is more effective. Specifically, there are mechanical methods and heat sterilization methods, and among them, the most effective method is light sterilization. It is known that the disinfection by sunlight is mainly the action of ultraviolet rays, and after microorganisms are irradiated by sunlight, protoplasm generates photochemical action, so that pathogen protein is coagulated and deformed to die. The pathogens attached to the surfaces of clothes, bedding and other articles can be killed by being exposed to direct sunlight for 3-6 hours. Pathogens such as typhoid, paratyphoid, bacillary dysentery, etc. for 2-3 hours, and Vibrio paracholerae for 30 minutes when it is dry, and pathogens such as influenza, pertussis, epidemic encephalitis, measles, chicken pox, etc. can be killed quickly under direct sunlight.
Whereas artificial ultraviolet light obtained by means of mercury quartz lamps or mercury ultraviolet lamps is commonly used for air disinfection in laboratories, surgical laboratories and food industry workshops, generally 15 watts (about 30 milliwatts per square centimeter) are used, and the irradiation time must not be less than 30 minutes. However, artificial ultraviolet radiation can also produce negative effects on human bodies, the ultraviolet radiation can produce erythema on human bodies, and the ultraviolet radiation can also cause electric ophthalmia; ultraviolet light below 185nm irradiates oxygen in the air to produce ozone, and the ozone is harmful to human bodies when the concentration of the ozone exceeds a certain concentration.
Therefore, when air is disinfected by the traditional ultraviolet irradiation method, people have to leave a room, and at present, the air cannot be disinfected by ultraviolet irradiation in the room and public places with people.
Disclosure of Invention
The invention aims to provide an indoor air sterilizer which utilizes ultraviolet light to irradiate flowing air and utilizes the ultraviolet light to decompose ozone.
The purpose of the invention is realized as follows: the ultraviolet lamp tube ballast comprises ultraviolet lamp tubes and a ballast, and is characterized in that two groups of ultraviolet lamp tubes which are arranged in parallel are arranged in a cylindrical body with one end provided with an air inlet and the other end provided with an air outlet, and a fan is arranged between the two groups of ultraviolet lamp tubes or at the air inlet end or the air outlet end. Each group of ultraviolet lamp tubes can be one ultraviolet lamp tube, and also can be two, three or four combined ultraviolet lamp tubes which are correspondingly arranged.
The contact area of the ultraviolet lamp tube and the air is determined according to the size of a sterilization place, the air circulation condition and the flow of people, so as to select the specific shape, and the ultraviolet lamp tube can be selected from a tapered thread-shaped lamp tube, an annular lamp tube, a square lamp tube, a triangular lamp tube, a straight tube-type lamp tube or a special-shaped lamp tube.
In order to facilitate maintenance and removal of dust on the surface of the ultraviolet lamp tube and replacement of the ultraviolet lamp tube, an opening cover is arranged on the cylindrical body. The opening cover can be one or two small covers, and can also be an opening cover penetrating through the whole cylinder body.
In order to adapt the invention tovarious environments, if the lower part of the simple pipe is provided with a support frame, the simple pipe becomes a table structure which is convenient for indoor air sterilization; if a handle is fixedly arranged at the middle part of the cylindrical body, the cylindrical body becomes a portable structure, so that indoor air sterilization can be conveniently carried out on the surfaces of various clothes, general merchandise, daily necessities and food in a market or a shop, including dead corners.
In order to make the sterilization effect of the ultraviolet lamp tube more obvious, the ultraviolet lamp tube close to the air inlet is a tapered threaded ultraviolet lamp tube, so that the contact area and time between the ultraviolet lamp tube and the air are fully increased.
The sterilization principle is as follows: ultraviolet rays have a sterilization effect, and after the bacteria are irradiated by the ultraviolet rays, the bacteria die because protein molecules in the body are damaged by photochemical action.
Reaction mechanism of ozonolysis: since ozone can oxidize many gaseous species with reducing properties, the concentration of ozone in the upper atmosphere can be reduced by reducing species (e.g., CO, NO, SO)2Halogen atom, etc.) with ozone. Under the irradiation of ultraviolet light with the wavelength of 220-320nm, ozone can dissociate out oxygen free radicals:
the invention can kill harmful germ and infectious virus (such as intestinal infectious virus, respiratory infectious virus, entomogenous infectious virus, animal source infectious virus, cold virus and coronavirus) in the indoor air rapidly by using the fan (exhaust fan or induced draft fan) to make the indoor air periodically pass through the cylinder body with the ultraviolet sterilizing lamp and the ultraviolet ozonolysis lamp, meanwhile, the ultraviolet lamp is arranged in the cylinder body which can not be seen by people, and the ultraviolet lamp at the air outlet end of the cylinder body can decompose the ozone generated by the front ultraviolet sterilizing lamp, thus reaching the discharge standard allowed by the state. The invention has good sterilization effect because the air inlet and the air outlet are not provided with shielding, so that no dead angle which can not be irradiated by the ultraviolet germicidal lamp exists in the flowing air. The adoption of various filtering and purifying films arranged at the air inlet and the air outlet and the utilization of an alkali metal hydroxide filter screen to decompose excessive ozone can generate dead corners which can not be irradiated by the ultraviolet germicidal lamp, and the filter screen is easy to age and has high cost.
The invention also has the characteristics of low cost, high sterilization effect, wide application range (can be widely applied to air sterilization in hospitals, mobile vehicles, schools, offices, public places, various business markets, laboratories, operation facilities and food enterprise workshops), no toxic or side effect on human bodies, simple and reasonable structure, long service life and the like.
Drawings
FIG. 1 is a schematic view of a table-type air sterilizer of the present invention
FIG. 2 is a schematic view of the portable air sterilizer of the present invention
FIG. 3 is a schematic diagram of an embodiment of the present invention
FIG. 4 is a schematic diagram of another embodiment of the present invention
The present invention will be described in further detail by way of examples, which are provided only for illustration of the present invention and are not intended to limit the scope of the present invention as defined by the claims.
Detailed description of the preferred embodiment example 1
As shown in fig. 1, in the figure, 1 is a cylindrical body, 2 of the cylindrical body is an air inlet, an electric fan 3 is fixedly arranged at the inner side of the air inlet, a tapered threaded ultraviolet low-pressure mercury disinfection lamp 4 (a lamp which radiates 253.7nm ultraviolet rays when low mercury vapor in the lamp tube discharges) is arranged at a position close to the electric fan 3 (close to the air inlet), and an annular ultraviolet low-pressure mercury disinfection lamp 5 is also arranged at a position close to an air outlet 6 of the cylindrical body, so that excessive ozone generated by the tapered threaded ultraviolet low-pressure mercury disinfection lamp 4 during sterilization and disinfection is decomposed, so that the sterilized and purified air meets the emission standard. In addition, 7 in the figure is a starter, 8 is a ballast of the ultraviolet low-pressure mercury disinfection lamp, 9 is a control switch connected with an external power supply, 10 is a support frame, and 11 is an omitted opening cover of a cylindrical body, so that the ultraviolet lamp tube can be maintained or replaced conveniently. When the invention is used, the air quantity and the air speed of the invention are adjusted according to the indoor volume and the air quality, and the operation steps are omitted.
The following conclusions were drawn from the bactericidal test:
for staphylococcus aureus: the invention relates to a test indicator staphylococcus aureus ATCC7865 strain (representing pyogenic bacteria and respiratory tract infectious bacteria). The ratioof staphylococcus aureus in air reaches over 99.98% for five times when the staphylococcus aureus acts for 10 minutes, and the ratio of staphylococcus aureus in air acts for 12 minutes is 100%. The sterilization rate of the candida albicans (representing pathogenic fungi) in the air reaches 100 percent for five times; the sterilization rate of the black variant spore of the bacillus subtilis in the air reaches 100 percent for five times. The air outlet end of the sterilizer of the invention generates no ozone, and completely conforms to the relevant national standards. Example 2
As shown in fig. 2, the basic structure is the same as that of fig. 1, except that a handle 12 is fixedly arranged at the middle part of the cylindrical body 1, so as to form a hand-held indoor air sterilizer. The sterilizer with the structure is suitable for sterilizing objects and some 'dead corners' in a room, such as: the surfaces of various clothes, general merchandise, daily necessities, masks and foods placed in the store are sterilized and disinfected.
The invention can also use the characteristics of the existing indoor structure to carry out layout modification, and can also realize the purposes of the invention, such as: the ultraviolet sterilizing lamp and the ultraviolet ozone decomposing lamp are additionally arranged by utilizing the self structural characteristics of an indoor air conditioner or a central air conditioner. Example 3
As shown in fig. 3, for air that has been contaminated, such as: the patient and the respirator used by the patient can be sterilized by the secondary disinfection method, firstly, the air inlet of the cylindrical body 21 of the invention is aligned to a pollution source, the air outlet can be directly connected in series in the disinfectant 41 capable of realizing the secondary disinfection, and the disinfectant can be selected from peracetic acid, chlorine-containing disinfectant or medical alcohol and the like according to the type of the pollution source; for further sterilization, a tubular body 31 of the present invention can be connected in series on the upper part of the sterilizing liquid, and the specific installation mode is as follows: the inlet end of the cylindrical body 31 is hermetically arranged at the upper part of the disinfectant, and air is discharged from the air outlet of the cylindrical body 31 after complete disinfection. Thus not only killing various viruses in the air, but also adsorbing all dust (carriers of germs) in the disinfectant. Example 4
As shown in FIG. 4, the structure is the same as that of the base body of example 3, except that the pollution source is a specific medical material or a medical tool, and the air inlet of the cylindrical body of the invention is directly aligned with the container 42 for placing the pollution source to carry out centralized sterilization.
Claims (9)
1. An indoor air sterilizer comprises ultraviolet lamp tubes and a ballast, and is characterized in that two groups of ultraviolet lamp tubes are arranged in a cylindrical body, one end of the cylindrical body is provided with an air inlet, the other end of the cylindrical body is provided with an air outlet, the two groups of ultraviolet lamp tubes are arranged in parallel, and a fan is arranged between the two groups of ultraviolet lamp tubes or at the air inlet end or the air outlet end.
2. An indoor air sterilizer as claimed in claim 1, wherein each set of ultraviolet lamps may be one ultraviolet lamp or two, three or four combined ultraviolet lamps disposed correspondingly.
3. An indoor air sterilizer as claimed in claim 1 or 2, wherein the ultraviolet lamp tube is a tapered screw-shaped lamp tube, a ring-shaped lamp tube, a square lamp tube, a triangular lamp tube, a straight tube-type lamp tube or a special-shaped lamp tube.
4. An indoor air sterilizer as claimed in claim 1 or 3, wherein the ultraviolet lamp tube adjacent to the air intake opening is a tapered screw-shaped ultraviolet lamp tube.
5. The indoor air sterilizer of claim 1, wherein the air outlet of the cylindrical body is directly connected in series to a sterilizing liquid for secondary sterilization.
6. The indoor air sterilizer as claimed in claim 1, wherein the air inlet of the cylindrical body is provided at an upper portion of the sterilizing liquid.
7. An indoor air sterilizer as claimed in claim 1, wherein an opening cover for facilitating maintenance or replacement of the ultraviolet lamp is provided to the cylindrical body.
8. An indoor air sterilizer as claimed in claim 1, wherein a support frame or a hanging type fixing frame is further fixedly provided at a lower portion or an upper portion of the cylindrical body.
9. An indoor air sterilizer as claimed in claim 1, wherein a handle is further fixedly provided at the middle of the cylindrical body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03111559 CN1446587A (en) | 2003-04-28 | 2003-04-28 | Air disinfects machine for indoor use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03111559 CN1446587A (en) | 2003-04-28 | 2003-04-28 | Air disinfects machine for indoor use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1446587A true CN1446587A (en) | 2003-10-08 |
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ID=28050274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03111559 Pending CN1446587A (en) | 2003-04-28 | 2003-04-28 | Air disinfects machine for indoor use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1446587A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346838C (en) * | 2005-10-12 | 2007-11-07 | 张亚中 | Two-band ultraviolet multifunctional sterilizing purifier |
| CN110123460A (en) * | 2019-04-23 | 2019-08-16 | 临海市高级职业中学 | Plural layers dental clinical place is kept a public place clean decontamination method |
| CN111450301A (en) * | 2020-04-09 | 2020-07-28 | 陆桐岗 | Ultraviolet lamp device for disinfection and disinfection room thereof |
-
2003
- 2003-04-28 CN CN 03111559 patent/CN1446587A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346838C (en) * | 2005-10-12 | 2007-11-07 | 张亚中 | Two-band ultraviolet multifunctional sterilizing purifier |
| CN110123460A (en) * | 2019-04-23 | 2019-08-16 | 临海市高级职业中学 | Plural layers dental clinical place is kept a public place clean decontamination method |
| CN111450301A (en) * | 2020-04-09 | 2020-07-28 | 陆桐岗 | Ultraviolet lamp device for disinfection and disinfection room thereof |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |