Reed-type valve is widely used in refrigeration compressor; its dynamic performance directly affects the energy efficiency of compressors. In order to reveal the motion law of the reed-type valve of refrigeration compressor, a dynamic model based on vibration theory is established. According to the actual movement characteristics of the reed valve, the motion process of the reed is divided into two stages (i.e. before the reed bending to the limiter and after the reed bending to the limiter). The one-degree-of-freedom system is used to model before the valve reed bending to the limiter, and the vibration theory of Euler–Bernoulli beam is used to model after the reed bending to the limiter. The fourth-order Runge–Kutta method is applied to solve the new model in the MATLAB environment. In order to verify the validity of the new model, dynamic performance experiments of discharge reed valve at various operating conditions were carried out. The predicted results of the new model, the basic valve theory model and the cantilever beam model are compared with the experimental results. The analysis of error band and root mean square error shows that the calculation results of the new model can more accurately reveal the motion law of reed valve than that of other two models. Then, the effects of valve lift, reed stiffness and compressor speed on the valve dynamics and pressure loss are analyzed. This research can provide a reference for optimizing the structure parameters of reed-type valve and improving the energy efficiency of compressors.

簧片式阀门广泛用于制冷压缩机中；它的动态性能直接影响压缩机的能效。为了揭示制冷压缩机干簧阀的运动规律，建立了基于振动理论的动力学模型。根据簧片阀的实际运动特性，将簧片的运动过程分为两个阶段（即，簧片弯曲到限制器之前和簧片弯曲到限制器之后）。一自由度系统用于在气门簧片弯曲到限制器之前进行建模，而欧拉–伯努利梁的振动理论用于在簧片弯曲到限制器之后进行建模。应用四阶Runge–Kutta方法在MATLAB环境中求解新模型。为了验证新模型的有效性，在不同工况下进行了排气簧片阀的动态性能试验。将新模型，基本阀理论模型和悬臂梁模型的预测结果与实验结果进行了比较。对误差带和均方根误差的分析表明，与其他两个模型相比，新模型的计算结果可以更准确地揭示簧片阀的运动规律。然后，分析了气门升程，簧片刚度和压缩机速度对气门动力学和压力损失的影响。该研究可为优化簧片式阀门的结构参数和提高压缩机的能效提供参考。将阀门的基本理论模型和悬臂梁模型与实验结果进行了比较。对误差带和均方根误差的分析表明，与其他两个模型相比，新模型的计算结果可以更准确地揭示簧片阀的运动规律。然后，分析了气门升程，簧片刚度和压缩机速度对气门动力学和压力损失的影响。该研究可为优化簧片式阀门的结构参数和提高压缩机的能效提供参考。将阀门的基本理论模型和悬臂梁模型与实验结果进行了比较。对误差带和均方根误差的分析表明，与其他两个模型相比，新模型的计算结果可以更准确地揭示簧片阀的运动规律。然后，分析了气门升程，簧片刚度和压缩机速度对气门动力学和压力损失的影响。该研究可为优化簧片式阀门的结构参数和提高压缩机的能效提供参考。分析了气门升程，簧片刚度和压缩机转速对气门动力学和压力损失的影响。该研究可为优化簧片式阀门的结构参数和提高压缩机的能效提供参考。分析了气门升程，簧片刚度和压缩机转速对气门动力学和压力损失的影响。该研究可为优化簧片式阀门的结构参数和提高压缩机的能效提供参考。