改进了倾斜管式黏度测量实验系统,使其能够适用于非共沸物质饱和液相黏度的测量。对制冷剂R22的替代物质近共沸二元混合制冷剂R410A和非共沸三元混合制冷剂R407C的饱和液相运动黏度进行了测量,实验温度范围为256.15~336.15 K。同时,依据实验数据建立了制冷剂R410A和R407C饱和液相运动黏度与温度的关联式。
The inclined-tube viscosity measurement system was improved to be used to measure the liquid phase viscosity of non-azeotropic mixtures.The kinematic viscosities of the binary near-azeotropic mixture R410A and the ternary non-azeotropic mixture R407C in the saturated liquid phase were measured at the temperatures ranging from 256.15 to 336.15 K.According to the experimental results,the equations correlating viscosity with temperature were established for both R410A and R407C.