By analyzing the membrane stress on inside of the pressed serpentine tube, the paper puts forward the formula to calculate the pressure, and the formula to calculate the thickness of the tube.

• 通过内压盘管的薄膜应力分析,推导了盘管应力计算公式,根据最大应力并结合盘管制造加工方法,给出了盘管壁厚计算公式。