CN205095065U - Ultraviolet sterilizer - Google Patents

Abstract

The utility model discloses an ultraviolet sterilizer, which comprises an ultraviolet lamp tube. A lampshade impermeable to ultraviolet light is arranged on the outside of the ultraviolet lamp tube. The area surrounded by the lampshade forms a disinfection area. The exhaust fan is provided with an air inlet and an air outlet on the lampshade. By adopting the utility model, the ultraviolet rays will not leak out and will not cause harm to the human body.

Description

UV sterilizer

technical field

The utility model relates to a disinfection device, in particular to a disinfection device which adopts ultraviolet rays for disinfection.

Background technique

Ultraviolet sterilizer is usually a kind of ultraviolet disinfection lamp. Its main principle is to penetrate the cell membrane of microorganisms through ultraviolet radiation, thereby destroying and changing the DNA (deoxyribonucleic acid) structure of bacteria and microorganisms, making them dead or unable to replicate themselves. So as to achieve the purpose of sterilization. Since ultraviolet disinfection is a purely physical disinfection method, it is simple, convenient and free of secondary pollution. At present, the known ultraviolet disinfection lamps have the effect of high radiation intensity and long-distance disinfection and sterilization, but there are also the following disadvantages:

(1) It can only be used in unmanned state. The ultraviolet energy emitted by the ultraviolet lamp is relatively large, which has strong lethality to bacteria and certain damage to the human body. During use, if no protective measures are taken, it is easy to cause great harm to the human body. Therefore, most of the ultraviolet disinfection lamps can only be used in the state of no one, and the applicability is poor;

(2) There is a sterilizing blind area. Since ultraviolet rays can only travel in a straight line and have no penetrability, they only have a bactericidal effect on the area irradiated by ultraviolet rays, and are limited to the surface of the irradiated object. In a fixed space, the ultraviolet disinfection lamp can only have an effect on the area within its irradiation distance, while the area outside the irradiation distance can only passively rely on air convection to reduce the concentration of germs, so there are sterilization blind spots and the disinfection effect is poor;

(3) It is easy to generate ozone. The ultraviolet beam breaks down oxygen molecules in the air to produce oxygen atoms, which combine with another oxygen molecule to form ozone. Ozone is a harmful gas that can cause varying degrees of damage to the human body depending on the concentration. At the same time, ozone is also strongly corrosive and oxidizing, and will corrode most metal and non-metal substances in the space, and is highly harmful.

Contents of the invention

The technical problem to be solved by the utility model is to provide a new type of ultraviolet sterilizer that can be safely used in the activity area of human body and living body, and the ultraviolet rays will not leak out and will not cause harm to the human body.

In order to solve the above-mentioned technical problems, the technical solution of the present utility model is: an ultraviolet sterilizer, comprising an ultraviolet lamp tube, the outside of the ultraviolet lamp tube is provided with a lampshade impermeable to ultraviolet light, and the area surrounded by the lampshade forms a disinfection area, A suction exhaust fan is also arranged in the lampshade, and an air inlet and an air outlet are opened on the lampshade.

Disinfection area: The ultraviolet lamp tube installed in the disinfection area can emit short-wave ultraviolet rays with a wavelength of 200-275nm. After the air enters the disinfection area, the ultraviolet rays can shoot and kill the bacteria and microorganisms directly exposed to the irradiation range of the ultraviolet lamp. Through the preset circuit, the sterilized air entering the lampshade will stay in the disinfection area for a certain period of time and then be discharged to ensure sufficient irradiation dose to achieve the disinfection effect.

Preferably, the ultraviolet sterilizer further includes a filter area, and the filter area is an air filter arranged at the air inlet.

Filtration area: Before the air to be sterilized enters the interior of the disinfection lamp, it first passes through the pre-air filter of the ultraviolet sterilizer. The purpose is to filter out hair, dust and large particles in the air and improve the efficiency of ultraviolet disinfection.

Preferably, it also includes a decomposing zone, the decomposing zone is an ozone decomposer arranged at the air outlet, and an ozone decomposing agent is distributed in the ozone decomposer.

Decomposition area: The decomposition area is set behind the disinfection area and contains an ozone decomposing agent. Oxygen molecules in the air will produce a large amount of ozone after being irradiated by ultraviolet rays. The sterilized air needs to pass through the decomposition zone before being discharged. The ozone decomposing agent in the decomposition zone will decompose the ozone into oxygen molecules and then discharge it to realize the air after discharge. No ozone.

Preferably, a reflective layer is further provided inside the lampshade. The reflective layer is arranged around the inner side of the lampshade. A reflective layer is designed inside the lamp to increase the local light intensity through multiple reflections of ultraviolet rays in the area.

Preferably, the exhaust fan is arranged at the air inlet of the disinfection zone, behind the air filter. When the ultraviolet disinfection is started, the exhaust fan runs to form active air convection in the disinfection empty area, so that the air to be disinfected actively enters the disinfection lamp. Therefore, even the corner with the worst air flow in the space can enter the ultraviolet sterilizer for disinfection through the air convection formed by the exhaust fan, so that there is no dead angle for sterilization.

Preferably, the ultraviolet lamp tube is arranged in the middle of the disinfection zone. Can make the sterilization uniform.

Preferably, the ozone decomposing agent is evenly distributed in the decomposition zone.

The utility model adopts a closed lampshade as an outer cover, and completes ultraviolet disinfection inside the lampshade, which not only improves the efficiency of ultraviolet disinfection to the greatest extent, achieves the goal of air disinfection and sterilization, but also effectively prevents ultraviolet leakage, ozone, etc. from harming the human body. harm.

Description of drawings

Fig. 1 is a structural representation of the utility model.

detailed description

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the utility model is not limited thereto.

With reference to Fig. 1, a kind of ultraviolet sterilizer comprises a closed lampshade 6, and so-called closed lampshade is meant that lampshade is impermeable to ultraviolet light, for example some glass can see through visible light, can not pass through ultraviolet light, and lampshade 6 inner edge enters The direction from the wind to the air outlet includes filter area 1, disinfection area 2, and decomposition area 3 in sequence. There is an air filter 7 in the filter area. Before the air to be sterilized enters the interior of the disinfection lamp, it first passes through the pre-air filter of the ultraviolet sterilizer. The device can filter out hair, dust, large particles and other debris in the air, and improve the efficiency of ultraviolet disinfection.

A suction exhaust fan 4 and an ultraviolet lamp 5 are arranged in the disinfection area 2. The exhaust fan 4 is arranged at the air inlet 10 of the disinfection area 2. When the ultraviolet disinfection is started, the exhaust fan operates to form active air convection in the disinfection empty area, so that The air to be sterilized actively enters the disinfection lamp; therefore, even the corner with the worst air flow in the space can enter the ultraviolet sterilizer for disinfection through the air convection formed by the exhaust fan, so that there is no dead angle for sterilization. There is an ultraviolet lamp 5 in the disinfection area, which can emit short-wave ultraviolet rays with a wavelength of 200-275nm; a reflective layer 8 is also provided inside the disinfection area, and the reflective layer 8 is arranged around the inner side of the lampshade 6, and the ultraviolet rays in the area are reflected multiple times. Increase local light intensity. After the filtered air enters the disinfection area, the ultraviolet rays can shoot and kill bacteria and microorganisms directly exposed to the irradiation range of the ultraviolet lamp. Through the preset circuit, the sterilized air entering the lampshade will stay in the disinfection area for a certain period of time and then be discharged to ensure sufficient irradiation dose to achieve the disinfection effect. For example, the suction exhaust fan 4 is controlled by an intermittent start blower fan, which can make the air stay in the disinfection zone for a long time.

The decomposition zone 3 is an ozone decomposer, in which the ozone decomposing agent 9 is evenly distributed, and it is arranged at the air outlet 11 of the lampshade. The oxygen molecules in the air will generate a large amount of ozone after being irradiated by ultraviolet rays, and the sterilized air will be discharged before being discharged Need to go through the decomposition zone, through the ozone decomposing agent in the decomposition zone, the ozone is decomposed into oxygen molecules and then discharged, so that the discharged air is free of ozone. The ozone decomposer uses the light box as the side wall, and the contact surface is a surface that is resistant to ultraviolet rays and ozone, such as hard oxidation treatment; the two ends are separated by an air hole plate, and the ozone decomposer uses a long-life precious metal oxide catalyst. In the filter interlayer with the same shape as the separation layer, the filling thickness is 30mm, and the whole is installed in the separation layer.

The ultraviolet lamp tube 5 of the utility model is completely covered inside the lampshade 6, and both ends are closed, so that the ultraviolet rays will not leak out. When starting the ultraviolet sterilizer, the exhaust fan 4 starts running and sucks the air in the target space into the air inlet, and filters out impurities such as hair, dust and large particles through the air filter 7 in the filter area 1. After the filtered air enters the disinfection zone 2, the ultraviolet lamp tube 5 will continue to irradiate the part of the air for a corresponding period of time to thoroughly disinfect and sterilize. The sterilized air and the generated ozone pass through the decomposition zone 3 equipped with an ozonolytic agent 9, and the ozone is decomposed into oxygen molecules under the action of the ozonolytic agent and discharged together with the air.

Claims (8)

1. a ultraviolet ray disinfector, comprise quartz burner (5), it is characterized in that: described quartz burner (5) outside is provided with the lampshade (6) of not ultraviolet light thoroughly, sterile zones (2) is formed in the region that described lampshade (6) surrounds, also be provided with a suction-type exhaust fan (4) in described lampshade (6), described lampshade have air inlet (10) and air outlet (11).

2. ultraviolet ray disinfector according to claim 1, is characterized in that: also comprise filtering area (1), and described filtering area is the air filter (7) arranged in air inlet.

3. ultraviolet ray disinfector according to claim 1 and 2, is characterized in that: also comprise resolver (3), and described resolver is the ozone decomposed device arranged at air outlet (11) place, is distributed with ozone-decomposing agent (9) in described ozone decomposed device.

4. ultraviolet ray disinfector according to claim 3, is characterized in that: described lampshade (6) inner side is also provided with reflecting layer (8).

5. ultraviolet ray disinfector according to claim 4, is characterized in that: described reflecting layer (8) are arranged along surrounding inside lampshade.

6. ultraviolet ray disinfector according to claim 2, is characterized in that: described exhaust fan (4) is arranged on air inlet (10) place of sterile zones, the rear of air filter (7).

7. ultraviolet ray disinfector according to claim 1, is characterized in that: described quartz burner (5) is arranged on the medium position of sterile zones (2).

8. ultraviolet ray disinfector according to claim 3, is characterized in that: described ozone-decomposing agent (9) is uniformly set in resolver.