以道达尔Seriola 3120导热油为工质,搭建了一个循环流化床导热油换热特性试验台,对光管和三维内肋管在细颗粒流化床中的换热特性进行了试验研究。试验的Re为150~2200,Pr为10~120。试验结果表明:在本试验范围内,三维内肋管管内对流换热系数是光管管内流换热系数的2.2~2.7倍,三维内肋管内壁温能控制在导热油安全运行温度范围之内。 A test bed of heat transfer characteristics of HTF circulating fluidized bed was set up with the HTS Seriola 3120 as the working fluid, and the heat transfer characteristics of the light pipe and the three-dimensional fin tube in a fine particle fluidized bed were studied. Re test for the 150 ~ 2200, Pr 10 ~ 120. The experimental results show that the convective heat transfer coefficient in the three-dimensional finned tube is 2.2-2.7 times that of the tube, and the thermal energy of the inner wall of the three-dimensional finned tube is controlled within the safe operating temperature of the thermal fluid .