根据克拉贝龙—克劳修斯方程，建立了国内外文献未见报道的测定导热油热分解温度的试验装置和试验方法，测定了大量国内外导热油的热分解温度，数据表明该法具有准确、简单、实用、省时、省力等优点 According to the Clapeyron-Clausius equation, a test device and a test method for determining the pyrolysis temperature of the HTF have been established, which have not been reported in the literature at home and abroad. The pyrolysis temperature of HTF has been measured. The data show that the method has Accurate, simple, practical, time-saving, labor-saving and so on