CN214049829U

CN214049829U - Ultraviolet real-time sterilizing device

Info

Publication number: CN214049829U
Application number: CN202020879298.9U
Authority: CN
Inventors: 傅黎明; 郭军; 赵丹宁; 傅建中
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-11
Filing date: 2020-05-23
Publication date: 2021-08-27
Anticipated expiration: 2030-05-23

Abstract

The utility model discloses a device is killed in real-time disappearing of ultraviolet ray, UVC radiation source adopt UVC LED, ozone-free ultraviolet lamp and excimer light source to the array combination radiation source satisfies the ultraviolet radiation intensity requirement in concrete disinfection place, confirms the radiant light curtain shape according to the ultraviolet wavelength, kills the inactivation in real time to the pathogen in specific place and public place, or reduces pathogen pathogenicity.

Description

Ultraviolet real-time sterilizing device

Technical Field

The utility model relates to an epidemic disease epidemic prevention technical field specifically is ultraviolet real-time device that kills and kills.

Background

The droplet infection and aerosol transmission of respiratory infectious diseases increase the difficulty of epidemic prevention of respiratory epidemic diseases.

The ultraviolet disinfection technology is a conventional disinfection method which is effective and widely applied and directly inactivates bacteria, viruses, parasites and other pathogens by using ultraviolet radiation in UVC wave band. UVC ultraviolet rays can destroy the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in cells of a microorganism organism, so that genetic materials are mutated, bacteria and viruses die immediately or cannot reproduce offspring, and the aim of disinfection is fulfilled.

The ultraviolet ray inactivates bacteria and viruses, DNA in human skin exposed to ultraviolet radiation is also damaged, stimulation and carcinogenic action of ozone gas generated by VUV (185 nm) on human body are not neglected, the existing ultraviolet ray sterilization technology has no real-time property, the sterile and low-pathogenicity environment of a sterilized place is destroyed along with the entrance of people, and the ultraviolet ray sterilization has limitation.

Social activity is a normal need for humans, and droplets, aerosols produced by eating and speaking carry pathogen transmission, and in public places without real-time disinfection and epidemic prevention measures, when riding public transportation means such as airplanes, trains, automobiles, and ships, the limited and poorly ventilated space is a high risk area for collective transmission, and although masks can provide some protection, they are not sufficient to avoid infections, especially intercontinental travel for hours or even tens of hours. Therefore, the problem of epidemic prevention spread in respiratory tract in social and public places is that no effective countermeasure is available at present.

With the progress of technology, the titanium quartz tube ozone-free ultraviolet lamp is widely applied, the UVC LED device and the excimer light source have single-wavelength characteristics, the characteristic single wavelength can be far away from the VUV (185 nm) wavelength, the generation of ozone is avoided, and the problem of ozone elimination and killing accompanied by ultraviolet rays is solved.

The ultraviolet has low penetration characteristic, the penetration capacity decreases with the decreasing of the wavelength, UVA is more than UVB and more than UVC, in the UVC wavelength range, 280nm is more than 265nm is more than 254nm is more than 222nm is more than 219nm, and the damage of UVC ultraviolet to human bodies can be effectively prevented by the shielding of thin paper, clothes, common glasses or goggles. Recent studies have shown that UV radiation below 230nm is only able to reach and not penetrate the stratum corneum of human skin.

The ultraviolet radiation damage protection technology is mature and widely used in commercial use, and commercial sun-proof clothes and sun-proof caps can effectively protect UVA and UVB ultraviolet rays from radiation damage to human bodies and have a better protection effect on UVC ultraviolet rays with lower penetrating power, so that the radiation damage protection to the human bodies by real-time ultraviolet ray killing has no obstacle in the technical level.

The problem which puzzles the real-time elimination and killing application of ultraviolet rays is the radiation power of UVC devices, and the existing low-pressure mercury lamp cannot eliminate and kill heavy metals in real time due to low light power and heavy metal pollution; the radiation power of the UVC LED device is gradually improved, and the UVC LED device can meet the radiation power requirement of a specific place in an array combination mode. The excimer light source technology can provide single wavelength and high power, the power of a single device ranges from tens of watts to thousands of watts, and the radiation intensity reaches 100mW/cm²Above, the problem of the radiation power of the ultraviolet device has been solved.

The published literature shows that vehicle-mounted ultraviolet air disinfection technology products are already applied to automobile products, but the vehicle-mounted air disinfection technology (including air disinfection of a building air conditioning system) has limitations, and for epidemic prevention of respiratory infectious diseases, the air disinfection cannot block virus transmission, and although the air circulation of the air conditioning system improves the air cleanliness, the transmission of viruses and pathogens in the air is intensified, so that the application of the ultraviolet air disinfection technology in the aspect of respiratory epidemic prevention is greatly limited.

The expected efficacy of the epidemic prevention measure for spreading the epidemic situation in the respiratory tract is not that 100% of the inactivated pathogeny forms a sterile environment, but partial inactivation or reduction of the pathogeny in the environment is below a threshold value, so that the pathogeny of the pathogen can be effectively reduced, the expected effect of epidemic prevention is realized, the important significance is realized on reducing the ultraviolet radiation intensity and the epidemic prevention cost, along with the mature application of the UVC LED and the excimer light source technology, the ultraviolet real-time sterilization technical scheme taking the UVC as the radiation source has feasibility and practicability, and the UVC ultraviolet real-time sterilization method is suitable and effective as the epidemic prevention measure.

The utility model aims at providing an ultraviolet real-time killing device aiming at the technical problem of real-time killing and inactivation of pathogens of respiratory tract transmitted diseases.

Disclosure of Invention

The utility model discloses a device is killed in real time to ultraviolet ray, UVC radiation source include but not limited to UVC LED device, excimer light source and ozone-free low pressure mercury lamp, radiation source wavelength range 200nm-280nm, including but not limited to characteristics single wavelength such as 219nm, 222nm, 254nm, 265nm, 270 nm.

When the wavelength of the radiation source is 200nm or more and λ or 230nm or less, the radiation source forms a circular truncated cone-shaped or oblique truncated cone-shaped radiation light curtain through parabolic reflection and/or a baffle plate; when the wavelength of the radiation source is 231nm or more and λ or 280nm or less, the radiation source forms a parallel radiation light curtain through parabolic reflection and/or a baffle plate.

The ultraviolet real-time sterilizing device applied to the passenger car is characterized in that UVC LED devices are combined into a strip-shaped radiation source, the radiation source is arranged on a ceiling above each row of seats, and alpha is greater than or equal to 60 degrees and less than or equal to 120 degrees in a projecting angle and projects from the back to the front.

The UVC radiation source power control switch applied to the passenger car is installed at a car door and linked with the opening and closing of the car door, when the car door is opened, the power is disconnected to close the UVC radiation source, and when the car door is closed, the power is closed to open the UVC radiation source.

The ultraviolet real-time sterilizing device is applied to a carriage and a passenger cabin, and a UVC radiation source adopts a UVC LED and/or an excimer light source lamp with the wavelength of 200nm-280 nm; when the UVC radiation source is a UVC LED, the UVC LED device array forms a strip radiation source which is arranged at the edges of luggage racks on two sides of the channel and a ceiling above the channel, a 90-120-degree projection angle radiation light curtain is formed by a reflecting plate and a baffle plate, and a passenger seat and a channel space below the radiation source are covered in a crossed manner; when the UVC radiation source is an excimer light source, the excimer light source lamp is arranged on a ceiling above a carriage channel and a passenger cabin channel, a radiation light curtain is formed through a shielding plate and a reflecting plate, and the edge of the radiation light curtain is tangent to the edge of the luggage rack.

The ultraviolet real-time sterilizing device applied to the carriage and the passenger cabin further comprises a UVC radiation source arranged in the space below the passenger seat, the projection angle of the radiation source is larger than or equal to 120 degrees, and the UVC radiation source covers the space below the seat and the floor of the passage.

The ultraviolet real-time disinfection device is applied to people gathering places such as a waiting hall and the like, a UVC radiation source is an excimer light source, and the wavelength is not less than 200nm and not more than 280 nm; when the wavelength is 200nm or more and λ is 230nm or less, the radiation source forms a circular truncated cone-shaped or oblique truncated cone-shaped radiation light curtain projected on the ground through the parabolic reflection and the shielding plate; when the wavelength of the UVC radiation source is 231nm or more and lambda or 280nm or less, the radiation source forms a vertical parallel radiation light curtain projected on the ground through parabolic reflection and a baffle plate; a plurality of UVC radiation source arrays are combined to cover the space below the radiation sources of the site.

The utility model discloses outstanding substantive effect has: first, the utility model discloses a real-time method of killing that disappears of ultraviolet adopts UVC LED, excimer light source and ozone-free ultraviolet lamp to be the UVC radiation source, has avoided the damage of ozone to the human body. The published literature indicates that ultraviolet rays with the lambda of more than or equal to 200nm and less than or equal to 230nm can not cause damage to human bodies while killing harmful pathogenic bacteria, and can implement ultraviolet real-time environmental disinfection in public places where people gather, and if the ultraviolet real-time environmental disinfection is supported by basic radiation-proof articles such as clothes, sun-proof caps, gloves, glasses or goggles, the personnel can be in an ultraviolet real-time disinfection area with the lambda of more than 230nm and less than or equal to 280 nm. The ultraviolet real-time disinfection can keep the low-pathogenicity state of the personnel gathering place from being damaged due to personnel flowing, most of pathogens in droplets and aerosols discharged by potential infected persons and patients are inactivated in real time, or the number of the pathogens is controlled below a pathogenicity threshold value, so that the respiratory tract epidemic propagation of the personnel gathering place is effectively blocked.

Secondly, the ultraviolet ray with the lambda of more than or equal to 200nm and less than or equal to 230nm is used for real-time killing of closed spaces of public transport means, such as buses, trains, subways, passenger ships, airplanes and operation taxis. Taking a train as an example, the real-time ultraviolet ray disinfection can realize the disinfection and the pathogenicity control of pathogens in the carriage space.

By analogy, the ultraviolet real-time sterilization method with the lambda of more than or equal to 200nm and less than or equal to 230nm is also suitable for epidemic situation epidemic prevention of all people gathering places, and in seasons with seasonal epidemic situations occurring more, hospital outpatients are high-risk areas where people pass, and the ultraviolet real-time sterilization measures provide safe working environment for medical care personnel and effectively protect patients who see a doctor. The utility model discloses a device is killed in real time to ultraviolet ray, is the effective product that blocks droplet, aerosol propagation epidemic situation, the utility model has the outstanding substantive characteristics and show the effect.

Drawings

Fig. 1 is a schematic view of the installation position of the ultraviolet sterilizing device and the radiation light curtain of the passenger car.

Fig. 2 is a schematic view of the installation position of the ultraviolet (UVC LED) sterilizing device and the radiation light curtain of the carriage of the present invention.

Fig. 3 is a schematic view of the installation position and light curtain of the carriage ultraviolet (excimer light source) killing device of the present invention.

FIG. 4 is a schematic view of the ultraviolet (λ is not less than 200nm and not more than 230 nm) real-time sterilizing device and the radiation light curtain in the waiting hall of the utility model.

FIG. 5 is a schematic view of the ultraviolet (wavelength 231nm ≤ λ ≤ 280 nm) real-time sterilizing device and the radiation light curtain in the waiting hall.

Detailed Description

The following examples are further illustrative of the present invention. The first embodiment is a detailed description of the ultraviolet sterilizing device for passenger cars of the present invention. The utility model discloses a UVC LED device is the UVC radiation source, according to the single characteristics of UVC LED device wavelength, small and single device luminous power is low, adopt UVC LED array mode, constitute the UVC radiation source that accords with the interior radiation intensity requirement of car, for example with many 30-100mW UVC LED lamp pearl interval array group one-tenth banding radiation source 01, radiation source length is passenger car space width-20 cm, install in every row of seat top ceiling from left to right, through the reflecting plate, the shielding plate forms the radiation light curtain of projecting angle 60-120, by the backward radiation forward, as shown in figure 1, avoid passenger normal position of sitting down eyes direct vision ultraviolet radiation luminous point.

Radiation intensity of 100 and 1000 muW/cm at a distance of 30cm (the oral-nasal area of a passenger in a normal sitting posture) from a light source is used for killing spray and aerosol discharged from the oral cavity and the nasal cavity in real time. When the wavelength of the UVC radiation source is within the range that lambda is not less than 231nm and not more than 280nm, UVC rays can penetrate through the skin cuticle to cause human body damage, passengers should wear long-sleeve clothes and wear the sun-proof cap 02, gloves, glasses or goggles to avoid the skin and any parts of the body from being exposed to direct radiation of the UVC, and the sun-proof cap 02 is a daily radiation-proof article for people to have leisure and vacation and can be conveniently purchased from the market.

When the wavelength of the UVC radiation source is within the range that lambda is more than or equal to 200nm and less than or equal to 230nm, the penetration force of UVC rays is not enough to penetrate through the horny layer of the skin to damage the human body, and passengers only need to wear glasses or goggles to avoid ultraviolet radiation damage without wearing long-sleeve clothes, sun-proof hats and gloves. This is based on the fact that the human eyes are the major organs of the human body, and wearing glasses or goggles is a redundant safeguard that protects the human eyes from possible damage.

The power switch of the ultraviolet real-time sterilizing device for the passenger vehicle is installed at the vehicle door, the UVC radiation source power supply is closed when the vehicle door is opened, and the UVC radiation source power supply is closed when the vehicle door is closed.

The 2 nd embodiment is a concrete implementation description of the ultraviolet real-time sterilizing device for the carriage and the passenger cabin. The conventional seats of the train carriage are in a single-channel layout, the seats of passengers are distributed on two sides of the channel, a luggage rack is arranged above the seats close to the window, and the UVC radiation source of the embodiment comprises a UVC LED and an excimer light source.

When the radiation source is a UVC LED device, in view of the light power limitation of a UVC LED single device, multiple UVC LED device arrays are combined into a strip radiation source, the strip radiation source 03 is installed on the edges of the luggage racks 05 on two sides, the radiation source 03 forms a radiation light curtain through a reflecting plate and a shielding plate, the radiation intensity at the position 1.2 meters below the radiation source is 100 and 1000 muW/cm, and the passenger seats and the passage space below the radiation source are covered in a crossed mode.

The radiation source 04 arranged above the channel forms a small projection angle radiation light curtain through the reflecting plate and the shielding plate, covers the channel area and is partially overlapped with the radiation light curtain of the radiation source 03, and the radiation intensity of the channel area is enhanced, as shown in fig. 2.

When the UVC radiation source adopts a 200nm-230nm excimer light source (lamp), since the power of the excimer light source can be selected from tens of watts to thousands of watts, the radiation intensity has a certain redundancy with respect to the car space, the excimer radiation source 06 is installed at the middle position of the ceiling above the car passage and is arranged above the whole car passage at a proper interval, the radiation source forms a radiation light curtain tangential to the edges of the two-side baggage racks 05 through the reflecting plate and the shielding plate, and the radiation intensity of the radiation light curtain at a height of 1.5 m from the ground of the car is 1000-.

When the power of the excimer lamp is selected to be more than hundreds of watts, the space at the upper part of the carriage can be covered by the radiation light curtain in an omnidirectional radiation mode of the excimer lamp because the radiation intensity has a certain redundancy for the space of the carriage, so that a better epidemic prevention effect is obtained.

In view of the long survival time of the new coronavirus in the droplets, after the droplets settle on the floor of the passageway of the carriage, the dust floating and spreading due to the movement of people cannot be ignored, in this embodiment, the UVC radiation source is installed below the passenger seat, the radiation light curtain covers the space below the seat and the floor of the passageway, and kills and inactivates the pathogens in the droplets and dust on the floor of the carriage in real time, and the radiation light curtain below the seat is not shown in fig. 2 and 3.

The embodiment is suitable for public transport means such as coaches, city buses, airplanes and ships with the same or similar structures and seating layouts, and the selection and the installation position of the UVC radiation source can be actually determined according to specific space.

Embodiment 3 is a specific embodiment of the ultraviolet real-time sterilizing device in the waiting hall. The waiting hall is a place where people frequently flow and are crowded, and is characterized by large area, high clearance and high radiation intensity due to the need of a UVC radiation source. The utility model discloses an excimer light source ultraviolet lamp 07 to according to the actual area and the clear altitude in waiting the hall, confirm excimer ultraviolet lamp 07 figure and array mode, make up into the UVC radiation source that covers the whole waiting hall region.

When the wavelength of the UVC radiation source is within the range that lambda is more than or equal to 200nm and less than or equal to 230nm, the radiation source is reflected by the lampshade 08 and is shielded by the shielding plate to form a circular table-shaped or oblique table-shaped radiation light curtain, as shown in fig. 4, the space below the radiation source and the ground are covered, and the radiation intensity of the radiation light curtain at the position 1.5 meters away from the ground is 1000 < 5000 > muW/cm.

When the wavelength of the UVC radiation source is within the range that lambda is more than or equal to 231nm and less than or equal to 280nm, the radiation source is reflected by the parabolic mirror surface 09 and/or is shielded by the shielding mirror plate to form a cylindrical or rectangular vertical parallel radiation light curtain, as shown in FIG. 5, the radiation damage to the facial skin of a person caused by ultraviolet oblique incidence is avoided, and the radiation intensity of the radiation light curtain at the height of 1.5 meters from the ground is 1000-.

In view of the uncomfortable vision caused by the ultraviolet radiation source accompanied by purple light, in the second and third embodiments, the lighting device can be arranged in the same place of a man-machine to illuminate the spectrum to neutralize and fade and mask the purple light of the radiation source, the lighting device and the radiation source can be designed into an integrated structure, and the existing lighting device in the place can also be utilized.

The above embodiment is the utility model discloses the practical application representative case of the real-time device that kills of ultraviolet ray is not the restriction the utility model discloses a real-time device that kills of ultraviolet ray is limited to above embodiment.

Claims

1. An ultraviolet real-time disinfection device comprises a UVC radiation source and is characterized in that:

the wavelength range of the UVC radiation source is 200nm-280 nm;

the wavelength is 200nm or more and λ or 230nm or more, the radiation source radiates omnidirectionally or a vertical round table or oblique table-shaped radiation light curtain is formed by a reflecting lampshade and a shielding reflecting plate;

the radiation source with the wavelength of 231nm or more and lambda or less than 280nm forms a vertical parallel radiation light curtain by a reflecting lamp shade and a shielding reflecting plate.

2. The real-time ultraviolet sterilizing apparatus as set forth in claim 1, wherein:

the ultraviolet real-time killing device applied to the passenger car is characterized in that UVC LED device arrays are combined into strip-shaped radiation sources, the radiation sources are installed on a ceiling above each row of seats, and alpha is larger than or equal to 60 degrees and smaller than or equal to 120 degrees in a projection angle and is projected from back to front.

3. The real-time ultraviolet sterilizing apparatus as set forth in claim 1, wherein:

the UVC radiation source power control switch of passenger car installs in door department, and UVC radiation source power disconnection when the door is opened, closes UVC radiation source power when the door is closed.

4. The real-time ultraviolet sterilizing apparatus as set forth in claim 1, wherein:

the radiation source of the ultraviolet real-time killing device applied to the carriage and the passenger cabin adopts a UVC LED and/or an excimer ultraviolet lamp, and the wavelength is 200nm-280 nm.

5. The real-time ultraviolet sterilizing apparatus as set forth in claim 1, wherein:

be applied to ultraviolet real-time killing device in carriage, main cabin, when the UVC radiation source is UVC LED, the UVC LED device array constitutes the banding radiation source, installs in carriage passageway both sides luggage rack edge and passageway top ceiling, forms the radiation light curtain through reflecting plate, shielding plate, alternately covers passenger's seat and passageway space below the radiation source.

6. The real-time ultraviolet sterilizing apparatus as set forth in claim 1, wherein:

be applied to the ultraviolet real-time killing device in carriage, main cabin, when the UVC radiation source was the excimer light source, excimer light source lamp was installed in carriage, main cabin passageway top ceiling, forms the radiation light curtain through sheltering from, reflecting plate, and the radiation light curtain edge is tangent with the luggage rack edge.

7. The real-time ultraviolet sterilizing apparatus as set forth in claim 1, wherein:

the ultraviolet real-time sterilizing device applied to the carriage and the passenger cabin further comprises a UVC radiation source arranged in the space below the passenger seat, the projection angle of the radiation source is larger than or equal to 120 degrees, and the UVC radiation source covers the space below the seat and the channel ground.

8. The real-time ultraviolet sterilizing apparatus as set forth in claim 1, wherein:

the ultraviolet real-time disinfection device is applied to a waiting hall, a UVC radiation source is an excimer light source, and the wavelength is not less than 200nm and not more than 280 nm;

when the wavelength is 200nm or more and λ is 230nm or less, the radiation source forms a circular truncated cone-shaped or oblique truncated cone-shaped radiation light curtain projected on the ground through the parabolic reflection and the shielding plate;

when the wavelength is 231nm or more and λ or 280nm or less, the radiation source forms a vertical parallel radiation light curtain projected on the ground through the parabolic reflection and the shielding plate.

9. The real-time ultraviolet sterilizing apparatus as set forth in claim 1, wherein: the ultraviolet real-time sterilizing device applied to the waiting hall covers the space below the radiation source of a place by combining a plurality of UVC radiation source arrays.