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Microwave electrodeless ultraviolet light source, system and application

An electrodeless ultraviolet and electrodeless ultraviolet technology, applied in electrical components, discharge lamps, circuits, etc., can solve the problems of short life, human injury, and high pollution of ultraviolet lamps, and achieve the effects of long life, low cost, and extended use range.

Pending Publication Date: 2022-05-10
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a microwave electrodeless ultraviolet light source to solve the problems of high pollution, short life and easy harm to the human body in the existing ultraviolet lamps

Method used

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  • Microwave electrodeless ultraviolet light source, system and application
  • Microwave electrodeless ultraviolet light source, system and application
  • Microwave electrodeless ultraviolet light source, system and application

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specific Embodiment 1

[0038] figure 1 A structure diagram of a light source provided by an embodiment of the present invention is shown. refer tofigure 1 , the application provides a microwave electrodeless ultraviolet light source, the light source includes a quartz lamp tube, the quartz lamp tube contains Zn and / or Zn compounds, and is filled with an inert gas;

[0039] Wherein, the quartz lamp tube is used to connect to a microwave source, and the microwave source couples the generated high-frequency electromagnetic waves into the quartz lamp tube to excite the inert gas to generate plasma, and then make the Zn that is heated and evaporated And / or Zn compounds are excited to radiate ultraviolet light.

[0040] In this embodiment, the luminescent substance in the quartz lamp tube is changed to Zn and / or Zn compound, and filled with inert gas, so that the inert gas generates plasma under the microwave excitation generated by the microwave source. As the temperature increases, the vapor pressure ...

specific Embodiment 2

[0049] This embodiment proposes a system of a microwave electrodeless ultraviolet light source, including the microwave electrodeless ultraviolet light source of Embodiment 1, and a microwave generating module.

[0050] The microwave generating module is connected to the microwave input end of the microwave electrodeless ultraviolet light source, and is used to transmit the generated high-frequency electromagnetic waves to the quartz lamp tube of the microwave electrodeless ultraviolet source, so as to excite the inside of the quartz lamp tube. The Zn and / or Zn compound radiates the ultraviolet light.

[0051] In this embodiment, a microwave source is used instead of metal electrodes. As a new type of high-efficiency clean energy, microwave energy is widely used in food processing, chemical industry, medicine and other fields. Therefore, the light source provided by the present invention has a longer service life. Compared with the electrode lamp, the service life will not be...

specific Embodiment 3

[0061] This embodiment provides an application of a microwave electrodeless ultraviolet light source. The microwave electrodeless ultraviolet light source mentioned in Embodiment 1 is applied to degrade high-concentration wastewater or to sterilize the surface of objects, or to remove odorous substances. While degrading the high-concentration wastewater, the sterilization and the deodorizing substances, avoiding damage to human cells; wherein, the malodorous substances include at least H 2 S, CS 2 , Styrene.

[0062] Microwave ultraviolet has excellent sterilization and disinfection effect, and, compared with single microwave technology and single ultraviolet technology, the removal rate of organic compounds is higher. One of the reasons is that microwaves and ultraviolet light have a synergistic effect. Microwaves are more likely to break polar bonds, especially to open benzene rings with branched chains to form smaller organic compounds; processing has certain advantages. ...

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Abstract

The invention discloses a microwave electrodeless ultraviolet light source, a system and application, and belongs to the technical field of ultraviolet sterilization. According to the ultraviolet light source, inert gas and Zn and / or a Zn compound are filled into a quartz lamp tube, and the inert gas in the quartz lamp tube is excited by a microwave device to generate plasma. Then, the Zn and / or the Zn compound are heated and evaporated, the Zn atoms collide with the electrons or the inert gas atoms in the excited state, transition from the ground state to the excited state is achieved, and then ultraviolet light with the wavelength of 213 nm is radiated when the Zn atoms return to the ground state. Compared with the prior art, the ultraviolet light source provided by the invention has the advantages that Zn and / or a Zn compound is used for replacing mercury as a luminous substance, the raw material is cleaner, and microwave excitation is used for replacing a metal electrode, so that the problem that the service life of the light source is shortened due to electrode consumption is avoided. In addition, the dominant wavelength of the ultraviolet light source is 213nm, so that the skin and corneal cells of a human body are not damaged while bacteria are effectively killed, and the application range is wider.

Description

technical field [0001] The invention relates to the field of ultraviolet sterilization technology, in particular to a microwave electrodeless ultraviolet light source, system and application. Background technique [0002] In the field of ultraviolet sterilization, the commonly used ultraviolet lamp is a low-pressure mercury arc lamp. The mercury arc lamp is a transparent quartz tube encapsulated with mercury and has electrodes at both ends. When the filament is heated by electricity, the mercury vapor in the tube is excited and transitions to an excited state, and then emits 185nm / 254nm ultraviolet light when it returns to the ground state from the excited state. Light. Since DNA has an absorption peak in the range of 200-222nm and 240-280nm, the ultraviolet rays in this band can be strongly absorbed by DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) molecules in bacteria and viruses, causing growth cell death and (or) regenerative cell death to achieve the effect of...

Claims

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Application Information

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IPC IPC(8): H01J65/04H01J65/08A61L9/20
CPCH01J65/04H01J65/08A61L9/20Y02W10/37
Inventor 黄卡玛钟宇
Owner SICHUAN UNIV
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