Thermal power measuring device
A technology for measuring devices and thermal power, applied in the direction of measuring devices, measuring heat, calorimeters, etc., can solve the problems of bridge output thermal signal fluctuations, susceptibility to external influences, troubles, etc., and achieve thermal power signal stability and shorten Loading time, the effect of simplifying the loading process
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[0049] Embodiment 1. Thermal power measuring device
[0050] Such as figure 1 with figure 2 As shown, the thermal power measurement device provided by the present invention includes a constant temperature system, a calorimeter 2, a thermal measurement system, a reaction system, a gas supply system 5, a thermal calibration system, a programmable DC power supply 7 and a data acquisition and control system 8; The system includes a temperature controller 11 and a tube-type constant temperature furnace 12 connected to it; the middle of the tube-type constant temperature furnace 12 is provided with a calorimeter 2 which includes a cylindrical copper-plated gold-plated soaking block 21. Two parallel and symmetrically arranged cylindrical stainless steel reaction cell cavities 22a and reference cell cavities 22b are provided in the heat block 21. The gap between the reaction cell cavity 22a and the reference cell cavity 22b and the soaking block 21 is filled Thermally conductive materia...
Example Embodiment
[0059] Example 2. Application of the thermal power measurement device of Example 1
[0060] The following uses the thermal power measurement of the oil sand oxidation process as an example to illustrate the use of the thermal power measurement device provided by the present invention:
[0061] First, input different calibrated thermal power at room temperature to test the linear coefficient between it and the output voltage of the bridge. This coefficient is the instrument constant of the thermal power measuring device. Change the input voltage signal at different temperatures to ensure that the instrument constant does not change with temperature.
[0062] Figure 4 It is the change of the input voltage signal with temperature when the instrument constant remains unchanged from room temperature to 400°C. The abscissa is the temperature and the ordinate is the input voltage. It can be seen that the voltage needs to increase with the temperature to ensure that the instrument constant ...
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