本文在相似理论指导下研究了螺旋回热器稳定流动状态下的传热性能.分别用液体和空气作为传热介质,在比较大的Dn和Pr变化范围内测量了传热系数.用线性回归分析法关联出了Nu与Dn和Pr之间的准数方程.同时用修正的Wilson标绘法确定传热系数,获得了与测量结果比较满意的一致的结果. In this paper, under the guidance of the theory of similarity, the heat transfer performance of the spiral regenerator under steady flow condition was studied.The heat transfer coefficient was measured in the range of relatively large Dn and Pr with liquid and air as the heat transfer medium respectively.Using linear regression The analytical method is used to correlate the quasi-equation between Nu and Dn and Pr.At the same time, the heat transfer coefficient is determined by a modified Wilson plotting method, and satisfactory results are obtained.