| 高温集热管真空寿命预测研究 |
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| 引用本文： | 于庆河,米菁,郝雷,杜淼,朗宇帆,郝雪龙. 高温集热管真空寿命预测研究[J]. 太阳能学报, 2023, 44(2): 37-40. DOI: 10.19912/j.0254-0096.tynxb.2021-1108 |
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| 作者姓名： | 于庆河 米菁 郝雷 杜淼 朗宇帆 郝雪龙 |
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| 作者单位： | 1.国家有色金属新能源材料与制品工程技术研究中心,有研科技集团有限公司,北京 100088; 2.有研工程技术研究院有限公司,北京 101407; 3.北京有色金属研究总院,北京 100088; 4.国合通用测试评价认证股份公司,北京 101407 |
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| 基金项目： | 政府间国际科技创新合作重点专项（2019YFE0102000）; 国家新材料测试评价平台-主中心建设项目（招标编号：TC170A5SU-1） |
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| 摘 要： | 针对高温真空集热管真空老化性能展开真空度预测和寿命评价研究。模拟电站高温集热管运行环境,在400℃进行热循环模拟和热损测试,在450℃进行过热加速循环试验。结果表明：集热管封离后,室温条件下其内初始真空度达4.7×10-4Pa,在400和450℃经过400次循环后,管内真空度分别为5×10-3Pa和6×10-2Pa。室温状态下集热管在吸收涂层法向发射比为0.08,真空度为10-3Pa时,400℃下热损为216 W/m,显示出良好的热性能。拟合结果表明在400℃条件下集热管使用寿命满足25年要求。
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| 关 键 词： | 太阳能 高温真空集热管 真空性能 老化 热损 |
| 收稿时间： | 2021-09-13 |
VACUUM LIFE PREDICTION STUDY OF PARABOLIC TROUGH RECEIVER |
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| Yu Qinghe,Mi Jing,Hao Lei,Du Miao,Lang Yufan,Hao Xuelong. VACUUM LIFE PREDICTION STUDY OF PARABOLIC TROUGH RECEIVER[J]. Acta Energiae Solaris Sinica, 2023, 44(2): 37-40. DOI: 10.19912/j.0254-0096.tynxb.2021-1108 |
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| Authors: | Yu Qinghe Mi Jing Hao Lei Du Miao Lang Yufan Hao Xuelong |
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| Affiliation: | 1. National Engineering Research Center of Nonferrous Metals Materials and Products for New Energy, GRINM Group Co., Ltd., Beijing 100088, China; 2. GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China; 3. General Research Institute for Nonferrous Metals, Beijing 100088, China; 4.China united test & certification Co., Ltd, Beijing 101407, China |
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| Abstract: | This study aims at obtaining vacuum aging mechanism in the annulus of the receiver. Simulating the parabolic trough receiver operation environment, the receivers are heat-treated at 400 ℃ and 450 ℃ to get the variative regulation of the vacuum. The initial vacuum level of the receiver after the degassing process is 4.7×10-4 Pa at room temperature. After 400 cycles at 400 ℃ and 450 ℃, the pressure of the receiver is 5×10-3 Pa and 6×10-2 Pa, respectively. At room temperature, when the normal emission ratio of the absorption coating is 0.08 and the vacuum degree is 10-3 Pa, the heat loss of the receiver tube is 216 W/m at 400 ℃, showing good thermal performance. The life time of the receiver is about 25 years according to the accelerated aging experiment. |
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| Keywords: | solar energy parabolic trough receiver vacuum property aging heat loss |
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