利用NI Labview 软件实现对丁烷物性参数的可视化界面编写。通过建立饱和区数学方程，建立一套程序化的可视化查询软件。以丙烷为基本参照物质，对丁烷基本热力学参数进行推算。结果显示，给定正丁烷压力P 和/或温度T 时，软件能自动判断此时工质状态区，同时推算出焓、熵、潜热、密度的数值-Use NI Labview software interface to visualize the physical parameters of the preparation of butane. Through the establishment of the saturated zone mathematical equations, to establish a program of visual query software. Propane as the basic reference material, basic thermodynamic parameters for butane projections. The results show that for a given pressure P n-butane and/or temperature T, the software can automatically determine the state of the working fluid at this area, and the estimated value of the enthalpy, entropy, latent heat, density