Uniform-radiation and dose-adjustable ultraviolet radiation device for accelerating aging of composite insulator

Abstract

The invention relates to a uniform-radiation and dose-adjustable ultraviolet radiation device for accelerating the aging of a composite insulator. The device comprises a box body; the six inner sidesurfaces of the box body are all formed by light reflection plates; the upper inner side surface and lower inner side surface of the box body are each provided with two to six ultraviolet light sources which are arranged side by side and are used for illuminating a sample under test; a bracket for carrying the sample under test, which is disposed between the ultraviolet light sources disposed on the upper inner side surface and lower inner side surface of the box body, is located in the box body; a wire through-hole is formed in one side surface of the box body, wherein the wire through-hole extend through the side surface; and each of the ultraviolet light sources is connected with an external power source through one wire passing through the wire through-hole. With the device of the invention adopted, the uniform illumination of a material can be realized; ultraviolet rays can be locked, and therefore, sufficient and uniform ultraviolet rays can be still emitted under a low power condition; the radiation power, radiation time and total radiation amount of the device of the invention can be controlled; and since time control can be effectively performed, and excessive radiation orinsufficient radiation can be avoided, and therefore, the accuracy of an experiment can be improved.

Description

technical field [0001] The present invention relates to an ultraviolet radiation device. In particular, it relates to an ultraviolet radiation device for accelerating the aging of composite insulators with uniform radiation and adjustable dose. Background technique [0002] Composite insulators have the advantages of small mass, good insulation performance, strong surface hydrophobicity and high mechanical strength, and have been widely used in the field of high-voltage transmission. my country's high-altitude areas such as Tibet account for half of the country's total land area. The solar radiation in plateau areas is large, and the total annual radiation is much higher than that in plain areas. In solar radiation, ultraviolet radiation (100nm-400nm) accounts for 8% of the total radiation, and long-wave ultraviolet (UVA, 320nm-400nm) accounts for about 6% of ultraviolet radiation. Ultraviolet radiation will cause composite insulators to age and gradually lose their insulat...

AI Technical Summary

Problems solved by technology

Existing accelerated ultraviolet radiation aging devices mostly use a single-side light source for irradiation, and the uniformity of radiation cannot be guaranteed, which will lead to certain deviations when evaluating the aging performance of materials

In addition, the radiation amount of the aging device is determined by the power of the radiation source and is generally a fixed value, which cannot simulate the changes in the amount of ultraviolet radiation at different altitudes.

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