A new set of recirculation-analytical type vapor-liquid equilibrium (VLE) apparatus was built, and the verification experiment of the R-125+R-290 system was carried out along three isotherms in the range of temperature from 273.15 K to 293.15 K. The experimental data is consistent with the literature data, which proves the reliability of the experimental system and method. In the temperature range of from 273.15 K to 358.15 K, the VLE measurement of the R-32+R-1234yf system was carried out along eight isotherms. The VLE data above 333.15 K was reported for the first time, and the measurement uncertainties of temperature, pressure, mole fraction were determined. Using the PRSV equation of state (EoS) combined with the W.S. mixing rule and NRTL activity coefficient model, the experimental VLE data of the R-32+R-1234yf system were correlated, and the temperature-dependent binary interaction parameters (BIP) within 273.15 to 343.15 K is obtained. For the R-32+R-1234yf system, the average relative deviation of the pressure $\text{ARD}(p)$ is 0.34%, and the average absolute deviation of the vapor phase mole fraction $\text{AAD}(y)$ is 0.0050. The experimental data in this work are in good agreement with the literature data.

建立了一套新的再循环分析型气液平衡（VLE）装置，并在273.15 K至293.15 K的温度范围内，沿着三个等温线进行了R-125 + R-290系统的验证实验。实验数据与文献数据相吻合，证明了该实验系统和方法的可靠性。在273.15 K至358.15 K的温度范围内，R-32 + R-1234yf系统的VLE测量是沿着八个等温线进行的。首次报道了高于333.15 K的VLE数据，并确定了温度，压力，摩尔分数的测量不确定度。利用PRSV状态方程（EoS）结合WS混合规则和NRTL活性系数模型，对R-32 + R-1234yf系统的实验VLE数据进行关联，得到了273.15至343.15 K范围内与温度相关的二元相互作用参数（BIP）。对于R-32 + R-1234yf系统，压力的平均相对偏差$\text{急性呼吸道疾病}（p）$ 为0.34％，气相摩尔分数的平均绝对偏差 $\text{AAD}（ÿ）$是0.0050。这项工作中的实验数据与文献数据非常吻合。