Method for testing heat of calorimeter

Abstract

The embodiment of the invention discloses a method for testing heat of a calorimeter. For the mode for testing the heat of the calorimeter in the embodiment of the invention, the difference among water temperature of an inner barrel and an outer barrel and ambient temperature is less, the whole ambient interference resistance of calorimetric test is strong; and the inner barrel is in a heat release stage in the test process, so that the unidirectionality and stability of cooling and correction of a calorimetric system are ensured, the error caused by heat absorption and release conversion in the prior art is solved, the accurate cooling and correction are realized, and simultaneously as the water temperature of the outer barrel participates in calculation, the determination of cooling and correction values are facilitated and the accuracy of the cooling and correction values is further improved. In addition, the testing time is shortened by increasing the test frequency and combining with the water temperature of the inner barrel and the outer barrel, so that the defects that in the prior art the experiment time is long and the cooling and correction are inaccurate and the like are overcome.

Description

technical field [0001] The invention relates to the technical field of calorimeter calorimetry, and more specifically, relates to a calorimeter heat testing method. Background technique [0002] Calorimeter heat measurement is the process of measuring the calorific value of coal, oil, food, coke, etc. in the coal, petrochemical or power industries. In the case of using a calorimeter to test the calorific value of a substance, such as Figure 1a As shown, there are inner cylinder 1, agitator 2, thermometer 3, oxygen bomb 4 and outer cylinder 5. Generally, the substance to be tested is placed in the oxygen bomb 4, and the substance to be tested is ignited under the condition of sufficient oxygen, and the heat released is absorbed by the oxygen bomb 4 and the water in the inner cylinder 1, due to heat conduction, Diffusion, radiation and other methods cause heat exchange between the calorimetric system and the outside world, and an outer cylinder 5 is arranged outside the inne...

AI Technical Summary

Problems solved by technology

[0004] However, the existing classic test mode has at least the following disadvantages: due to the inertia of heat transfer in the test system, the hysteresis of the water temperature point of the inner and outer cylinders and other factors, the heat absorption / release transition process point is different from the actual point, resulting in cooling correction compensation The accuracy of the value is not high; and, due to the long test time, when the ambient temperature, the temperature difference between the inner and outer cylinders and other factors change greatly, the test results deviate from the true standard value, so that the experimental data is stable in the short term and drifts in the long term. Facilitate the analysis and utilization of experimental results

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