A thermal analysis device and application of extremely rapid temperature rise-variable atmosphere-weight real-time

A thermal analysis device and atmosphere technology, applied in the field of heating experimental equipment, can solve the problems of mass error, low applicability, and inability to accurately measure the thermal burst of samples, so as to avoid mass error and improve the scope of application

Active Publication Date: 2022-05-31
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the shortcomings and deficiencies of the existing technology, a thermal analysis device and application of extremely rapid temperature rise-variable atmosphere-weight real-time are provided, which can solve the mass error caused by the vibration of the moving measurement object during the use of the device, and the thermal balance is easy Corrosion, combustion atmosphere and extremely rapid temperature rise cannot be combined in any way, resulting in low applicability and the problem that the thermal burst of the sample cannot be accurately measured

Method used

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  • A thermal analysis device and application of extremely rapid temperature rise-variable atmosphere-weight real-time
  • A thermal analysis device and application of extremely rapid temperature rise-variable atmosphere-weight real-time
  • A thermal analysis device and application of extremely rapid temperature rise-variable atmosphere-weight real-time

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The thermal analyzer is powered on, air is introduced from the air inlet pipe 15, the reaction shell 6 is removed, the reaction crucible 20 is exposed to the environment, the electromagnet 22 is turned on, and the protruding ferromagnetic material 17 is attracted due to the effect of magnetic force, making it The raised position presses the film pressure sensor 23, and the current pressure can be obtained through the potential difference,

[0042] Via the formula:

[0043] G=1000mg

[0044] Where G is the pressure (N), m is the mass (g), and g is the acceleration of gravity (N / kg).

[0045] Calculate the zeroing mass.

[0046] Carry out real-time counting through the computer, and tare the return-to-zero weight; then put 200g of Changzhi sludge into the reaction crucible 20, at this time, due to the increase in weight, the suction force of the electromagnet 22 to the raised ferromagnetic material 17 is indirectly reduced, thereby The pressure on the film pressure sen...

Embodiment 2

[0049] The thermal analyzer is powered on, air is introduced from the air inlet pipe 15, the reaction shell 6 is removed, the reaction crucible 20 is exposed to the environment, the electromagnet 22 is turned on, and the protruding ferromagnetic material 17 is attracted due to the effect of magnetic force, making it The raised position presses the film pressure sensor 23, and the current pressure can be obtained through the potential difference,

[0050] Via the formula:

[0051] G=1000mg

[0052] Where G is the pressure (N), m is the mass (g), and g is the acceleration of gravity (N / kg).

[0053] Calculate the zeroing mass.

[0054] Carry out real-time counting by computer, and tare the zeroed weight; then put 50 g of pyrite (FeS) into the reaction crucible 20 2 ), at this time, due to the increase in weight, the suction force of the electromagnet 22 on the raised ferromagnetic material 17 is indirectly reduced, thereby reducing the pressure on the film pressure sensor 23....

Embodiment 3

[0057] Turn on the power of the thermal analyzer, and pass the gas distribution (21%O) from the intake pipe 15 2 +79%CO 2 ), remove the reaction shell 6, expose the reaction crucible 20 to the environment, open the electromagnet 22, attract the convex ferromagnetic material 17 due to the effect of magnetic force, and press the film pressure sensor 23 in its convex position, through the potential difference can get the current pressure,

[0058] Via the formula:

[0059] G=1000mg

[0060] Where G is the pressure (N), m is the mass (g), and g is the acceleration of gravity (N / kg).

[0061] Calculate the zeroing mass.

[0062] Carry out real-time counting through the computer, and tare the return-to-zero weight; then put 200g of large-particle coal gangue into the reaction crucible 20, and at this time, due to the increase in weight, the suction force of the electromagnet 22 to the raised ferromagnetic material 17 is indirectly reduced, Thus, the pressure on the film pressur...

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Abstract

The present invention provides a thermal analysis device with extremely fast temperature rise-variable atmosphere-real-time weight and its application, including a furnace reaction device, a fixed protection device, a sample weighing device and an electric control device; wherein the sample weighing device uses pressure The sensor replaces the traditional thermobalance, combined with the moving furnace body, to realize the measurement of the macroscopic sample amount (g-kg level), and avoids the quality error caused by the vibration of the moving measurement object, and at the same time uses corrosion-resistant materials to break through the thermobalance. Limitations caused by corrosion; can realize any combination of various combustion atmospheres and extremely rapid temperature rise, greatly improving the scope of application; can accurately measure the amount of thermal cracking of samples, providing an effective way for the study of thermal cracking behavior in the later stage.

Description

technical field [0001] The invention relates to the field of heating experimental equipment, in particular to an extremely rapid heating-atmosphere-variable-weight real-time thermal analysis device and application. Background technique [0002] A thermal analyzer is an instrument for thermogravimetric analysis and thermogravimetric differential measurement of a sample. The general thermogravimetric analyzers on the market are all small in size, have high precision requirements, and measure a small amount of samples. At present, the thermogravimetric analysis of the "large sample" with large size and mass can only characterize its overall reaction by the quality difference before and after heating in the tube furnace, but cannot understand its real-time reaction during the heating process. There are certain limitations. Due to the limitation of sample size and the limitation of existing thermogravimetric analyzers for harsh use environments, thermogravimetric analyzers can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/26
CPCG01N25/26Y02E30/30
Inventor 张圆圆任磊杨凤玲程芳琴张锴
Owner SHANXI UNIV
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