DRPL-400 coefficient of thermal conductivity tester (plate heat flow plan method)
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The apparatus adopts the international fashion heat flow plan and thermal resistance coefficient of thermal conductivity detection method, match the computer to realize automatic detection and generate the experiment report. In my company's DRPL-type I plate heat flow plan method based on the thermal conductivity tester to design, to adapt to the 400 x 400 x (5-100) heat preservation brick testing requirements.
This instrument based on steady-state test method and principle, in plate heat surface to join stable hot surface temperature, heat through the sample transfer to the grim, the transfer of heat flow measurement, again according to the thickness of the sample and heat transfer area can be calculated coefficient of thermal conductivity and heat resistance. This test method is simple, convenient, quick, repeatability. It is suitable materials in the research and development of heat transfer. Can be used in geotechnical, foam, cement, heat preservation material test, widely used in universities and colleges, scientific research institutes, quality inspection, mines.
This instrument reference standards: ASTM C518-the heat flow plan with determination of steady heat flux and heat transfer characteristics of the test method; GB10295-88 adiabatic material steady-state thermal resistance and the determination of related properties (heat flow plan law).
The main technical parameters
1, the thermal conductivity scope: sample plate 0.015 5 W/mk, less than 5% accuracy,
2, hot surface temperature: 99.99 ℃, the room temperature-high number degree show temperature measuring, table 0.2 magnitude 0.01 ℃ accuracy, resolution.
3, grim temperature: 99.99 ℃, the room temperature is high number show table temperature measurement, magnitude 0.2, 0.01 ℃ accuracy resolution.
4, hot surface temperature control: 99.99 ℃, the room temperature high number of program-controlled digital display meter measuring temperature, magnitude 0.2, 0.01 ℃ accuracy resolution, plate heater, bidirectional thyristor control.
5, grim with high precision temperature control constant temperature sink.
6, by using the computer automatic test.
7, heat flow range: 0.5 2000 W/m2, points of rate 0.25 W/m2.
8, cold hot plate heat exchanger area: 400 x 400 (mm).
9, cold hot plate adjustable spacing: 0-160 (mm).