Microwave electrodeless ultraviolet lamp, control method and application thereof

Abstract

The invention belongs to the technical field of microwave plasmas, and discloses a microwave electrodeless ultraviolet lamp, a control method and application thereof. One end of a rectangular waveguide tube is a metal short-circuit surface, and the other end of the rectangular waveguide tube is a microwave feed port; and a metal cylindrical resonant cavity for placing an ultraviolet lamp tube is connected above the gap of the rectangular waveguide tube. The rectangular waveguide tube is provided with four slits, and the upper part of each slit is connected with a metal cylindrical resonant cavity for placing an ultraviolet lamp tube. And the rectangular waveguide tube is a BJ22 rectangular waveguide with a slot. According to the invention, the problem of non-uniform intensity of the ultraviolet lamp when the ultraviolet lamp is manufactured into a large-scale bracket structure can be solved, so that the sterilization effect is uniform when the ultraviolet lamp is used for sterilizationtreatment in an open channel. According to the structure, microwave energy is uniformly coupled through each slot, and the ultraviolet lamp is lightened outside the waveguide, so that the structure is simplified. According to the invention, during sterilization treatment, the sterilization effect of the treated sewage in all places is uniform.

Description

technical field [0001] The invention belongs to the field of microwave plasma technology, and in particular relates to a microwave electrodeless ultraviolet lamp, a control method and an application thereof. Background technique [0002] At present, with the continuous development of science and technology, microwave energy, as a new type of high-efficiency clean energy, has been used more and more in various fields such as food processing, chemical industry, and medicine. The application of plasma is also very extensive, such as exciting plasma, generating high temperature for the degradation of some substances, or plasma light source. Traditional plasma has direct current excitation, electrode excitation and other methods. Compared with traditional plasma excitation methods, microwave plasma has the characteristics of high efficiency, energy saving, cleanliness and pollution-free. Today, microwave plasma is widely used in many fields. Microwave electrodeless ultraviolet ...

AI Technical Summary

Problems solved by technology

Second, it is necessary to improve the inhomogeneity of ultraviolet light intensity when the microwave electrodeless ultraviolet lamp structure is used for sewage treatment in open channels. Due to the uneven light intensity, the sterilizing effect is not uniform and the existence of sterilizing blind spots

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