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DG-1 型高温导热系数测定仪是根据傅立叶单向度平壁导热原理研制成的。该仪器主要由供电系统、单方向加热炉和蒸汽量热装置三部分组成。量热装置的底盘放置隔热环,底盘的上表面设有汽泡发生膜,可以保证通过试材中心测试段的热流能单向而迅速地以汽泡形式传给取热桶。该仪器适于测定耐火、绝热与保温材料的高温导热系数、散热强度和热阻,高温面温度可达 1400°C,测定一种试材的λ值只需1.5～3小时,累计误差小于6.5％。性能稳定,操作方便,便于制造。
DG-1-type high-temperature thermal conductivity detector is based on one-way Fourier thermal conductivity flat wall developed. The instrument is mainly composed of power supply system, one-way heating furnace and steam calorimeter. Calorimetric rings are placed on the chassis of the calorimeter, and a bubble generation membrane is arranged on the upper surface of the chassis to ensure that the heat flux passing through the center of the test material can be unidirectionally and quickly transmitted to the heat extraction barrel in the form of bubbles. The instrument is suitable for measuring the high temperature thermal conductivity, heat dissipation and thermal resistance of refractory, heat insulation and heat preservation materials, the temperature of the high temperature surface can reach 1400 ° C, the λ value of a test material is only 1.5 to 3 hours and the cumulative error is less than 6.5 %. Stable performance, easy to operate, easy to manufacture.