CN2626496Y

CN2626496Y - Indoor air sterilization machine

Info

Publication number: CN2626496Y
Application number: CN 03212859
Authority: CN
Inventors: 张兴东
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-04-28
Filing date: 2003-04-28
Publication date: 2004-07-21
Anticipated expiration: 2013-04-28

Abstract

An indoor air sterilizer comprises UV lamps and ballasts. The technical points are that two groups of UV lamps are arranged in parallel inside a tube-like body with an air inlet and an air outlet respectively at the two ends, and a fan is arranged between the two groups of UV lamps or at the end of either the air inlet or the air outlet. The utility model utilizes the fan to allow the air to pass periodically through the tube-like body with the UV germicidal lamps and the UV ozone-decomposing lamps, thereby rapidly killing pathogenic bacteria and infectious viruses in the air indoor. Additionally, the UV lamps are arranged invisibly inside the tube-like body and the UV lamps at the air outlet end of the tube-like body can decompose the ozone produced by the UV lamps at the other end, to meet the national discharge standards. The utility model has the advantages of low cost, high sterilization efficiency and wide application range, and is widely used for the air sterilization in hospitals, running vehicles, schools, administrative offices, public places, and commercial markets. The utility model also is characterized by no toxic and adverse effect on human body, simple and reasonable structure, and long service life.

Description

Indoor air sterilizer

Technical Field

The utility model belongs to the technical field of indoor sterilization, specifically speaking is an indoor air sterilization machine that utilizes ultraviolet ray to kill various germs.

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 utility model aims at providing an utilize ultraviolet ray to shine mobile air, utilize the indoor air sterilizing machine of ultraviolet ray decomposition ozone simultaneously.

The purpose of the utility model is realized like this: 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 surfaceof 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 make the utility model suitable for various 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 utility model can rapidly kill harmful germs and infectious viruses (such as intestinal infectious virus, respiratory infectious virus, entomogenous infectious virus, animal-derived infectious virus, cold virus and coronavirus) in the indoor air by utilizing the fan (an exhaust fan or a draught fan) to periodically pass through the barrel with the ultraviolet sterilizing lamp and the ultraviolet ozonolysis lamp, and simultaneously, the ultraviolet lamp is arranged in the barrel which can not be seen by people, and the ultraviolet lamp at the air outlet end of the barrel can decompose the ozone generated by the front ultraviolet sterilizing lamp, thereby reaching the discharge standard allowed by the state. The utility model discloses owing to all be equipped with at business turn over wind gap and shelter from, make the air that flows not have ultraviolet germicidal lamp shine "dead angle", consequently disinfect and disinfect effectually. 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 utility model discloses still have with low costs, disinfect and imitate height, application range width (can extensively be applicable to the air disinfection in hospital, mobile vehicle, school, office, public place, various business market, laboratory, operation reality and the food enterprise workshop), to human nontoxic minus effect, simple structure characteristics such as reasonable, long service life.

Drawings

FIG. 1 is a simplified structure of the table air sterilizer of the present invention

FIG. 2 is a simplified structure of the portable air sterilizer of the present invention

FIG. 3 is a schematic diagram of a specific application structure of the present invention

FIG. 4 is a schematic view of another embodiment of the present invention

The present invention will be described in further detail by way of examples, but the following examples are merely illustrative of the present invention and do not represent the scope of the present invention as defined by the claims.

Detailed Description

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. The utility model discloses when using, the size of its amount of wind and wind speed should be adjusted according to indoorvolume and air quality, and the operating procedure omits.

The following conclusions were drawn from the bactericidal test:

for staphylococcus aureus: the utility model discloses to experimental indicator fungus staphylococcus aureus ATCC7865 strain (representing suppurative bacteria and respiratory tract infectious bacteria). The ratio of 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 sterilization machine of the utility model does not generate 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 utility model discloses can also utilize current indoor structure to go up characteristics, carry out the repacking of cloth of office, can realize equally the utility model discloses a purpose, for example: 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 breathing machine used by the patient can be sterilized by the secondary disinfection method, firstly, the air inlet of the tubular body 21 of the utility model is aligned to the pollution source, the air outlet can be directly connected in series in the disinfectant 41 which can realize the secondary disinfection, and the selection of the disinfectant can select peracetic acid, chlorine-containing disinfectant or medical alcohol and the like according to the type of the pollution source; in order to further sterilize, the upper part of the sterilizing liquid can be connected with the cylindrical body 31 of the utility model in series, 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 the base body of example 3, except that the specific contamination source is a specific medical material or a medical tool, and the air inlet of the cylindrical body of the present invention is directly aligned with the container 42 for placing the contamination source, so as to perform centralized sterilization.

Claims

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 airoutlet, 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 portionor 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.