Annular LED catalytic light source

Abstract

The invention discloses an annular LED catalytic light source. The annular LED catalytic light source comprises a cooling water pipe, a heat dissipation support ring, a reflection ring, a cooling water circulator, a program-controlled constant-current power supply and a plurality of LED lamp beads; the reflecting ring is coaxially arranged in the heat dissipation support ring and connected with the heat dissipation support ring through a heat conduction connecting piece, a reflecting mirror surface is arranged on the circumferential inner wall of the reflecting ring, and the LED lamp beads areuniformly distributed along the waist line of the circumferential side wall of the reflecting ring; the cooling water pipe is circumferentially and tightly coiled outside the heat dissipation supportring, and two ends of the cooling water pipe are respectively connected with a water outlet end and a water return end of the cooling water circulator; and the program-controlled constant-current power supply is connected with the LED lamp beads through a circuit, and the light intensity of the LED lamp beads is linearly adjusted. The annular LED catalytic light source not only ensures a reactantto be uniformly illuminated, but also effectively controls the light intensity and the temperature of the light source.

Description

technical field [0001] The invention relates to an LED light source, in particular to an annular LED catalytic light source. Background technique [0002] Photochemical reaction is a very important chemical reaction in nature, mainly involving the interaction between photons and material molecules. It has a wide range of applications in the synthesis of organic matter and the decomposition of pollutants. In photochemical reactions, the structure, wavelength and intensity of the light source have an important impact on the efficiency, yield and mechanism of chemical reactions. The light sources currently used mainly include solar simulators, mercury arc lamps, carbon arc lamps, tungsten-halogen lamps, and incandescent lamps. [0003] These light sources generally have a continuous wavelength or multi-wavelength spectrum. However, photochemical reactions often require irradiation of specific wavelengths. For example, photocatalytic reactions require photon energy to be great...

AI Technical Summary

Problems solved by technology

As a result, the utilization efficiency of these light source wavelengths is generally not high, and the thermal effect is relatively obvious, requiring special heat dissipation facilities to dissipate heat for the reaction device

Although it has been reported that lasers or LEDs are also used for photochemical reactions, due to the limitations of their structures, all these light sources can only irradiate the reactant sample on one side during use, which will inevitably cause the reactant to be illuminated unevenly: from the incident direction The index of light intensity inside the reactant decreases, thus resulting in uneven reaction process and prolonged reaction time

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