CN213312090U

CN213312090U - Device for quickly killing viruses in air by ultraviolet rays in 240nm wave band

Info

Publication number: CN213312090U
Application number: CN202020461914.9U
Authority: CN
Inventors: 宋伯根; 王侃; 宋玉文; 林焕杰
Original assignee: Shanghai Stande Medical Technology Co ltd
Current assignee: Shanghai Stande Medical Technology Co ltd
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2021-06-01
Anticipated expiration: 2030-04-02

Abstract

A240 nm wave band ultraviolet ray device for quickly killing virus in air is composed of a casing, a disinfecting cavity and an air dynamic circulating system, wherein the casing contains the disinfecting cavity, the disinfecting cavity is composed of a radiation cavity formed by connecting six-sided sheet metal and an ultraviolet lamp tube, the ultraviolet lamp tube capable of outputting 240nm wave band (236 nm-244 nm) ultraviolet ray is installed in the radiation cavity, the air dynamic circulating system is composed of an air inlet, an air outlet and an ultra-silent cross flow fan, the air inlet and the air outlet are connected with two ends of the disinfecting cavity, and the air dynamic circulating system meets the requirement of air change: the layer height can be about 20m of 2.4m²The air of the space of (a) is circulated 8 to 12 times per hour. Book (I)The utility model can be used for effectively killing viruses on various sites. The air-borne diseases such as influenza and the like can be effectively controlled in places with dense personnel, and the damage of ultraviolet light with specific wavelength to the direct irradiation of human bodies is avoided.

Description

Device for quickly killing viruses in air by ultraviolet rays in 240nm wave band

Technical Field

The utility model relates to a virus in the air, especially a device of virus in air is exterminateed fast to 240nm wave band ultraviolet ray.

Background

UVC is ultraviolet ray with the wavelength of 200-280nm, is short-wave sterilization ultraviolet ray and has good effect of killing bacteria. Has been widely used for air bacteria disinfection in hospital medical environment. Because influenza viruses generally have a short survival time in air, people usually ignore the airborne viral kill in public environments, and thus, the physical method of airborne viral kill using UVC has not been applied.

UVC is highly harmful to human body, can burn skin by short-time irradiation on human body, and can cause skin cancer by long-time high-intensity irradiation. Therefore, UVC cannot be used in places with high traffic, and it is necessary to solve the problem of damage to the human body due to direct irradiation in order to kill influenza viruses in the air in places with high traffic.

The survival of the virus is carrier-requiring, influenza virus generally cannot survive for too long in air, and the influenza viruses known to have the longest survival time in air are parainfluenza virus and influenza a H1N1 virus, which survive for 2 hours in air, in current studies. Some airborne viruses can survive longer. During this time, the foot can be caused to spread in a place with dense people stream, so that, in the dynamic disinfection of air, the influenza virus in the air of the place where the device and the method of the present invention are installed must be effectively killed within 2 hours according to aerodynamics.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device of virus in 240nm wave band ultraviolet ray exterminates fast in the air, the device can be used to multiple scene and effectively exterminates the virus. Can effectively control the air-borne diseases such as influenza and the like in a place with dense personnel, and avoid the damage of ultraviolet light with a wave band of 240nm to the direct irradiation of a human body.

The technical solution of the utility model is as follows:

a240 nm ultraviolet device for quickly killing virus in air features thatThe device is composed of a machine shell, a disinfection cavity and an air dynamic circulation system, wherein the machine shell contains the disinfection cavity, the disinfection cavity is composed of a radiation cavity and an ultraviolet lamp tube, the radiation cavity is composed of six-sided sheet metal, the ultraviolet lamp tube capable of outputting ultraviolet light with 240nm wave band (236 nm-244 nm) is arranged in the radiation cavity, the air dynamic circulation system is composed of an air inlet, an air outlet and an ultra-silent cross flow fan, the air inlet is connected with two ends of the disinfection cavity, the ultra-silent cross flow fan is arranged at the air inlet, and the air dynamic circulation system meets the air exchange requirement: the layer height can be about 20m of 2.4m²The air of the space of (a) is circulated 8 to 12 times per hour.

The ultraviolet lamp tube for outputting light with a wave band of 240nm comprises two structures:

1) the outer wall of the ultraviolet lamp tube is sequentially covered with a high-pass filter membrane and an ultraviolet lamp tube of a cut-off filter membrane from inside to outside, the high-pass filter membrane is used for filtering light with the wavelength of more than 244nm and totally transmitting the light with the wavelength of less than 244 nm; the function of the cut-off filter membrane is to filter light with a wavelength lower than 236nm, light with a wavelength higher than 236nm passes through the cut-off filter membrane, and the two layers of filter membranes are combined to obtain an ultraviolet lamp tube which outputs light with a wave band of 240nm (236 nm-244 nm);

2) colored glass filter tubes are used as the lamp tubes of the ultraviolet lamps to obtain light output in a 240nm wave band (236 nm-244 nm).

The disinfection cavity is a single-tube disinfection cavity or a double-tube folding disinfection cavity.

The shell has various forms such as wall embedding, wall hanging, ceiling suction, vertical type and cart type according to different use sites.

The principle of the utility model is as follows:

the diameter of the bacteria is generally 1 μm to 10 μm. Most viruses have a diameter of 20 to 200 nm. In an ultraviolet lamp tube with the wavelength of 200-280nm, the penetration effect of ultraviolet light with the wavelength of a specific narrow wave (236 nm-244 nm) on viruses is the strongest, and the influenza viruses can be killed in a short time. The method for obtaining the specific narrow-wave ultraviolet light adopts multiple filter membranes (high-pass filter membranes, cut-off filter membranes, band-pass filter tubes or the like) to play a role in high filtering. And the UVC of the 240nm wave band is made into a special antivirus lamp tube.

According to aerodynamics, the research on the relationship between the fan power and the air circulation disinfection efficiency discovers that: the power of each fan is 2m per minute³The air enters into a 240nm wave band UVC irradiation disinfection cavity. One device is provided with an ultra-silent fan with equivalent wind power, and the layer height can be adjusted to 20m about 2.4m²The air of the space of (a) is sterilized cyclically 8 to 12 times per hour. Only in this way, the device can be in a continuous working state, and the influenza virus in the air can be effectively killed.

Push 2m per minute³(or 6 m)³) The air enters a narrow-wave UVC irradiation sterilization cavity, namely the layer height is about 20m of 2.4m²The air of the space of (a) is sterilized cyclically 4 times (or 12 times) per hour.

The utility model discloses the beneficial effect of technique:

1. but the UVC has weak penetration ability and cannot penetrate transparent glass and organic glass. Consequently the utility model discloses carry out the air disinfection in going into inclosed cavity with the air continuous suction filtration, the recirculation discharges to the space place, the utility model discloses both kept the powerful virus effect of killing of specific ripples UVC, solved the problem of UVC to personnel's injury again. In places with dense people, the damage of direct irradiation of the human body by UVC with specific wavelength is avoided, and the air-borne diseases such as influenza and the like can be effectively controlled in public places with dense population.

2. The chicken farm installation can effectively control the spread of avian influenza.

3. The pig farm installation can effectively control the spread of swine influenza.

4. The utility model discloses the device is monomer system, does not need pipe-line system, reduces the high expense of operating room installation laminar flow system. And simultaneously solves the disinfection of special bacterial infection which cannot be solved by a laminar flow system. The construction cost for newly building or modifying the operating room can be greatly reduced.

5. The utility model can replace the intensive culture method for preventing diseases by adding antibiotics into the feed. Not only can reduce the cost of using antibiotics, but also can reduce the pollution of the antibiotics.

Drawings

FIG. 1 is a schematic view of an ultraviolet lamp tube covered with a high-pass filter and a cut-off filter, wherein a is a sectional view and b is an expanded view.

FIG. 2 is a schematic view of an ultraviolet lamp with a bandpass filter

Fig. 3 is a spectrum of normal uv light and a high-filtered mid-peak 240nm uv light, where a is normal UVC and b is filtered 240nm UVC.

Fig. 4 is a schematic view of the single-tube disinfection chamber in the embodiment 1 of the device for rapidly killing viruses in air by using ultraviolet rays with a wavelength of 240nm of the present invention, wherein a is a front view and b is a perspective view.

Fig. 5 is a schematic view of the device for rapidly killing viruses in air by using ultraviolet rays with a wavelength of 240nm according to the present invention, in which a is a front view and b is a perspective view, in embodiment 2, a double-tube disinfection chamber is shown.

Detailed Description

The present invention will be further described with reference to the following examples and drawings, but the scope of the invention should not be limited thereby.

Referring to fig. 4 and 5, fig. 4 is a schematic view of a single tube disinfection cavity of an embodiment 1 of the device for quickly killing viruses in air by using 240nm band ultraviolet rays, fig. 5 is a schematic view of a double tube disinfection cavity of an embodiment 2 of the device for quickly killing viruses in air by using 240nm band ultraviolet rays, as can be seen from the figure, the device for quickly killing viruses in air by using 240nm band ultraviolet rays comprises a casing 1, a disinfection cavity 2 and an air dynamic circulation system, wherein the disinfection cavity is wrapped by the casing, the disinfection cavity comprises a radiation cavity 2 and an ultraviolet lamp tube 3 which are formed by connecting six-sided sheet metal, the ultraviolet lamp tube 3 capable of outputting 240nm band (236 nm-244 nm) ultraviolet light is installed in the radiation cavity, and the air dynamic circulation system comprises an air inlet 4, an air outlet 3, and a water outlet, wherein the air inlet is connected with two ends of the disinfection cavity, The air outlet 5 and install the ultra-silent crossflow blower 6 constitution at the air intake, ultra-silent crossflow blower should satisfy the requirement of changing wind: the layer height can be about 20m of 2.4m²The air of the space of (a) is circulated 8 to 12 times per hour.

The disinfection cavity is a single-tube disinfection cavity or a double-tube roundabout disinfection cavity.

Different from the embodiment 1 and the embodiment 2, the embodiment 1 is a single-tube disinfection cavity, and the experimental study shows that the crossflow fan with the optimal power intensity has no noise and can push 2m per minute³Into the sterilization chamber. Example 2 is a double-tube disinfection chamber, and the cross flow fan with the best power intensity through experimental research has no noise and can push 6 m/min³Into the sterilization chamber. The implementation method for keeping the air disinfection effect under the condition of accelerating the air flow rate comprises the following steps: the disinfection cavity adopts double cavities with a circuitous structure, so that the path and time of air flowing through and contacting with high-filtering ultraviolet rays are prolonged.

1) the outer wall of the ultraviolet lamp tube is sequentially covered with a high-pass filter film 11 and a stop filter film 12 from inside to outside, the high-pass filter film is used for filtering light with the wavelength of more than 244nm, and the light with the wavelength of less than 244nm is completely transmitted; the function of the cut-off filter membrane is to filter light with a wavelength lower than 236nm, light with a wavelength higher than 236nm passes through the cut-off filter membrane, and the two layers of filter membranes are combined to obtain an ultraviolet lamp tube which outputs light with a 240nm wave band (236 nm-244 nm); please refer to fig. 1.

2) Colored glass filter tubes are used as the lamp tubes of the ultraviolet lamps to obtain light output in a 240nm wave band (236 nm-244 nm). Please refer to fig. 2.

Fig. 3 is a comparison of the spectrogram of the ordinary ultraviolet light and the high-filtering center 240nm ultraviolet light, and the right graph shows that the high-filtering center 240nm ultraviolet light used by the utility model has a wave band of 236 nm-244 nm and a central wavelength of 240 nm.

The machine shell has various forms such as wall embedding, wall hanging, ceiling suction, vertical type and cart type according to different use sites.

The experiment shows that the utility model discloses has following technological effect:

1. the utility model discloses with the quick suction filtration of air to virus disinfection cavity in, effectively exterminate. In places with dense people, the damage of direct irradiation of UVC with a wave band of 240nm to human bodies is avoided, and the air-borne diseases such as influenza and the like can be effectively controlled in public places with dense population.

Claims

1. A device for rapidly killing viruses in air by ultraviolet rays with a wave band of 240nm is characterized by comprising a machine shell, a disinfection cavity and an air dynamic circulation system, wherein the disinfection cavity is wrapped by the machine shell and consists of a radiation cavity and an ultraviolet lamp tube which are formed by connecting six-sided sheet metal, and the ultraviolet lamp tube is arranged in the radiation cavity and outputs ultraviolet rays with a wave band of 236 nm-244 nm; the air dynamic circulation system is composed of an air inlet and an air outlet which are connected with two ends of the disinfection cavity and an ultra-silent cross flow fan which is arranged at the air inlet, and the air inlet, the air outlet and the ultra-silent cross flow fan of the air dynamic circulation system meet the air exchange requirement: the layer height can be about 20m of 2.4m²The air of the space of (a) is circulated 8 to 12 times per hour.

2. The device as claimed in claim 1, wherein the ultraviolet lamp tube for outputting light of 240nm wavelength band comprises two structures:

1) the outer wall of the ultraviolet lamp tube is sequentially covered with a high-pass filter membrane and a cut-off filter membrane from inside to outside, the high-pass filter membrane is used for filtering light with the wavelength of more than 244nm and totally transmitting the light with the wavelength of less than 244 nm; the function of the cut-off filter membrane is to filter light with a wavelength lower than 236nm, light with a wavelength higher than 236nm passes through the cut-off filter membrane, and the two layers of filter membranes are combined to obtain an ultraviolet lamp tube which outputs light with a wave band of 236 nm-244 nm;

2) colored glass filter tubes are used as lamp tubes of the UV lamp to obtain light output of 236 nm-244 nm wave bands.

3. The device for rapidly killing viruses in the air by using the ultraviolet light with the wavelength of 240nm as claimed in claim 1, wherein the disinfection chamber is a single-tube disinfection chamber or a double-tube circuitous disinfection chamber.

4. The apparatus as claimed in any one of claims 1 to 3, wherein the housing has a plurality of forms such as wall-embedded, wall-mounted, ceiling-mounted, vertical, and cart-type, according to different sites.