CN113181987A

CN113181987A - Clean bench using far ultraviolet lamp

Info

Publication number: CN113181987A
Application number: CN202110426661.0A
Authority: CN
Inventors: 胡大伟; 李帅帅; 宋甘雨; 马政; 刘红
Original assignee: Beihang University
Current assignee: Beihang University
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-07-30

Abstract

The invention provides a clean bench using far ultraviolet lamps, which comprises an air filtering component, a disinfecting and illuminating component and an operating platform component. The sterilizing lighting assembly is provided with a far ultraviolet lamp. The extreme ultraviolet lamp uses a built-in light source capable of emitting light having wavelengths of 200-222 nm. A band-pass filter is arranged between the external space of the far ultraviolet lamp and the built-in light source, so that the light irradiating the external space of the far ultraviolet lamp is light between 200nm and 222 nm. This use clean bench of far ultraviolet lamp adopts far ultraviolet lamp to carry out safe high-efficient, harmless sterilization to the human body, has reduced the injury of far ultraviolet lamp to human skin and eyes in the clean bench when many people use multi-equipment, has improved laboratory availability factor, has ensured experiment worker's experimental safety.

Description

Clean bench using far ultraviolet lamp

Technical Field

The invention relates to the technical field of a far ultraviolet sterilization device of a clean workbench, in particular to a clean workbench using a far ultraviolet lamp.

Background

The clean bench is also called super clean bench, which is universal local purifying equipment for single person operation and is manufactured to meet the requirement of local work area cleanliness in the fields of scientific experiment and industrial industry such as biomedicine. In the actual production work, the situation that only a clean workbench is used by a single person is difficult to realize; multiple clean benches or other equipment are typically present in a single room and are used by multiple people simultaneously or at different times. Since ordinary ultraviolet rays (254nm) are very harmful to eyes and skin of a human body and may induce cancer or cataract, a person must keep a certain distance or distance from an ultraviolet lamp during ultraviolet sterilization, which is in contradiction with efficiency to the requirement of using multiple persons and multiple devices.

Extreme ultraviolet light is a narrow spectrum of ultraviolet light. Scientific research shows that Far ultraviolet (Far UV-C) with the wavelength of 200-222nm can effectively penetrate and inactivate bacteria and viruses, but cannot penetrate through the skin of a human or the outermost stratum corneum of eyes, so that the exposed skin or eyes cannot be damaged.

Disclosure of Invention

The invention provides a clean workbench using a far ultraviolet lamp, which utilizes far ultraviolet rays to sterilize safely, efficiently and harmlessly to human bodies.

In order to achieve the purpose, the invention provides the following technical scheme:

a clean bench using far ultraviolet lamps comprises an air filtering component, a disinfecting and lighting component and an operating platform component, and is characterized in that: the disinfection lighting assembly is internally provided with a far ultraviolet lamp.

The extreme ultraviolet lamp uses a built-in light source capable of emitting light having a wavelength of 200-222 nm.

A band-pass filter is arranged between the external space of the far ultraviolet lamp and the built-in light source, so that the light irradiating the external space of the far ultraviolet lamp is light between 200nm and 222 nm.

The band-pass filter comprises a band-pass filter for filtering single-wavelength light and a band-pass filter for filtering light with a certain range of wavelengths between 200nm and 222 nm. The filter includes both a band-pass filter for fixing the filtered wavelength and a band-pass filter for adjusting the filtered wavelength.

Compared with the prior art, the invention has the beneficial effects that: this use clean bench of far ultraviolet lamp adopts far ultraviolet lamp to carry out safe high-efficient, harmless sterilization to the human body, has reduced the injury of far ultraviolet lamp to human skin and eyes in the clean bench when many people use multi-equipment, has improved laboratory availability factor, has ensured experiment worker's experimental safety.

Drawings

Fig. 1 is a schematic view of the clean bench using a far ultraviolet lamp.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. For the purpose of clarity, numerous implementation details are set forth in the following description. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

The clean workbench can be used independently, and a production line can be formed by a plurality of clean workbenches or other equipment together, so that various requirements in production can be met. The far ultraviolet lamp according to the present invention includes all kinds of far ultraviolet generated, and includes, but is not limited to, a far ultraviolet generated by various methods such as a krypton-chlorine (Kr-Cl) mixed gas excimer lamp. It covers all the wavelength of the far ultraviolet ray from 200nm to 222 nm.

As shown in FIG. 1, the clean bench using the extreme ultraviolet lamp includes an air filtering assembly (1), a sterilizing lighting assembly (2), and a console assembly (3). The air filtering component comprises a variable air volume air blower unit (7), a prefilter (8), a high-efficiency filter (9) and a pressure equalizing plate (10). The operating platform assembly comprises a glass sliding window (11), side glass (12), a stainless steel platform surface (13), a main power switch (14), a standby socket (15), an operating panel (16), universal casters (17) and a shell (18). The disinfecting lighting assembly comprises a lighting lamp (19) and a far ultraviolet lamp (4).

The far ultraviolet lamp (4) adopts a long lamp tube structure and comprises a built-in light source (5) and a band-pass filter (6). The built-in light source is in a long lamp tube shape, the band-pass filter is arranged between the built-in light source and the stainless steel table surface, is wrapped on the built-in light source (5) in a semi-cylinder shape and is fixed above the inner part of the shell (18), so that light rays emitted by the far ultraviolet lamp (4) and irradiated to the glass moving window (11), the side glass (12), the stainless steel table surface (13) and the back of the shell (18) are light rays between 200 and 222 nm.

The far ultraviolet lamp (4) is turned on and off, and the wavelengths of light that can pass through the band-pass filter (6) are operated by an operation panel (16).

Claims

1. A clean bench using far ultraviolet lamps comprises an air filtering component (1), a disinfecting and illuminating component (2) and an operating platform component (3), and is characterized in that: the disinfection illumination component (2) is internally provided with a far ultraviolet lamp (4).

2. The extreme ultraviolet radiation lamp defined in claim 1, wherein: a built-in light source (5) capable of emitting light having a wavelength of 200-222nm is used.

3. The extreme ultraviolet radiation lamp defined in claim 1, wherein: use of a band-pass filter (6) between the built-in light source (5) as claimed in claim 2 and the space outside the extreme ultraviolet lamp, such that the light emitted by the extreme ultraviolet lamp (4) impinging on the space outside the extreme ultraviolet lamp is between 200 and 222 nm.

4. The bandpass filter (6) as claimed in claim 3, both comprising a bandpass filter for filtering light of a single wavelength and a bandpass filter for filtering light of a range of wavelengths between 200-222 nm.

5. The bandpass filter (6) as claimed in claim 3, both comprising a bandpass filter with a fixed filtered wavelength and a bandpass filter with an adjustable filtered wavelength.