Method for detecting anti-ultraviolet aging of cabin cover of plateau fan
A technology of anti-ultraviolet and detection methods, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., and can solve the problems of insufficient anti-ultraviolet aging ability at high altitudes, etc.
Active Publication Date: 2012-07-25
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the problem of insufficient anti-plateau ultraviolet aging ability of the existing common fan nacelle cover, and to solve the problem that the aging performance of the fan nacelle cover material cannot be truly detected by ultraviolet rays in the fan nacelle cover processing site, and propose a The anti-ultraviolet aging detection method of the plateau fan nacelle cover, the anti-ultraviolet aging detection method of the plateau fan nacelle cover can be used to detect the anti-ultraviolet aging performance of the plateau fan nacelle cover at the processing site of the fan nacelle cover, through which the detection method can be used to test its anti-altitude 20-year UV aging capability
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[0012] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0013] A detection method for anti-ultraviolet aging of plateau fan nacelle cover. Through analysis, it can be known that the nacelle cover is mainly composed of glass fiber reinforced plastic (FRP), which is a composite material with glass fiber as reinforcement and synthetic resin as matrix. Material, its cross-sectional layer can be divided into outer protective layer 1 (0.5-0.7mm gel coat layer), middle reinforcement layer 2 (6-6.5mm glass fiber resin layer), inner surface protective layer 3 (0.5mm resin-rich layer) Wait for three layers, specifically as figure 1 shown. Since the strong ultraviolet radiation on the plateau will cause the slow aging and cracking (yellowing) of its FRP structure, the plateau cabin cover must be tested to see if its UV protection scheme meets the 20-year design life. The specific detection method can be realized accor...
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The invention discloses a method for detecting anti-ultraviolet (UV) aging of a cabin cover of a plateau fan. The method is characterized by comprising the following steps of: performing accelerated aging test on a gel coat layer of a protective layer on the surface of the cabin cover and the whole sample respectively so as to test that the UV intensity is 0.7 W / M<2> and the irradiation temperature is 60 DEG C; performing cyclic test by taking 8-hour UV irradiation and 8-hour condensation at the temperature of 50 DEG C as a period; determining the chromatism rate and the gloss retention rate of the gel coat after the accelerated aging so as to test the aging degree by taking 1,000 hours as 7 years; determining the chromatism rate and the gloss retention rate of the coat gel after the accelerated aging through the test of the chromatism rate and the gloss retention rate after 3,000-hour QUVA accelerated aging so as to judge the anti-UV aging performance of the gel coat and verify the capability of resisting plateau 20-year UV aging of the cabin cover of the plateau fan; and then testing the mechanical property of 3,000-hour QUVA accelerated aging of the glass steel layer of the plateau cabin cover, wherein the tensile strength of the tested sample is kept over 70 percent, and the bending strength of the tested sample is kept over 40 percent.
Description
technical field [0001] The present invention relates to a material detection method, specifically a detection method for anti-ultraviolet aging of plateau fan nacelle cover, especially suitable for plateau type wind power generating set (hereinafter referred to as plateau fan) fan nacelle cover at an altitude of 2500-4000 meters Anti-ultraviolet aging detection. Background technique [0002] The wind turbine nacelle cover is the outermost protective device covering the wind turbine. The core components of the wind turbine, such as generators, gearboxes and converters, are basically installed in the wind turbine nacelle. The equipment inside the cover plays a role of safety protection. Since most of the wind turbines in the past were installed at sea level and plain areas below 2000 meters above sea level, the main requirements for the enclosure of the wind turbine are to have the functions of preventing rain, snow, sand and dust, and salt corrosion of ordinary wind turbines...
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IPC IPC(8): G01N17/00
Inventor 宋加佳颜志伟晏红文
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST