抛物面槽式太阳能集热器球形接头测试系统的研制与应用  

Development and Application of Test System for Ball Joints of Parabolic Trough Solar Collector

作　　者：董军 汤建方 臧春城[2,3,4] 徐立 王志峰[2,3,4] DONG Jun;TANG Jianfang;ZANG Chuncheng;XU Li;WANG Zhifeng(CGN Solar Energy Development Co.,Ltd.,Xicheng District,Beijing 100048,China;Institute of Electrical Engineering,Chinese Academy of Sciences,Haidian District,Beijing 100190,China;University of Chinese Academy of Sciences,Haidian District,Beijing 100049,China;Beijing Engineering Research Center of Solar Thermal Power,Haidian District,Beijing 100190,China)

机构地区：[1]中广核太阳能开发有限公司,北京市西城区100048 [2]中国科学院电工研究所,北京市海淀区100190 [3]中国科学院大学,北京市海淀区100049 [4]北京市太阳能热发电工程技术研究中心,北京市海淀区100190

出　　处：《发电技术》2024年第2期291-298,共8页Power Generation Technology

基　　金：国家重点研发计划项目(2022YFE0129600)。

摘　　要：球形接头是抛物面槽式太阳能集热器的关键部件,针对球形接头易发生运转卡涩和导热油泄漏问题,研制了一套球形接头性能测试系统。该测试系统可以实现球形接头在旋转、摆转或旋摆联动模式下,以及在导热油温度达393℃和压力达4.1 MPa工况条件下的加速寿命测试。以导热油为传热流体,开展了球形接头在导热油温度为393℃和压力为2.3 MPa工况条件,以及温度、压力变化条件下的性能测试研究,分析了球形接头在模拟12年寿命期的扭矩特性和密封性能,验证了该测试系统运行的稳定性和可靠性,并且关键技术参数的控制精度和测量精度满足使用要求,为球形接头的性能评价提供了技术支撑。Ball joint is the key component of parabolic trough solar collector.In view of the problems that the ball joint is prone to operation sticking and heat conduction oil leakage,a performance test system of ball joint was developed.It can realize the accelerated life test of ball joints in rotational,angular or rotational-angular motion and at temperature up to 393 ℃ and pressure up to 4.1 MPa.Using the thermal conductivity oil as heat transfer fluid,the performance test research of ball joints was carried out under the working conditions of thermal conductivity oil temperature of 393 ℃ and pressure of 2.3 MPa,as well as under the conditions of temperature and pressure variation.The torque characteristics and sealing performance of the ball joint during the simulated 12-year life period were analyzed.Furthermore,the stability and reliability of the test system were verified through the test process,and the control accuracy and measurement accuracy of key technical parameters met the operational requirements.The test system provides technical support for the performance assessment of ball joints.

关 键 词：太阳能热发电 抛物面槽式太阳能集热器 球形接头 测试系统 扭矩特性 密封性能 加速寿命 性能测试 

分 类 号：TK513.1[动力工程及工程热物理—热能工程]