Controllable fast-heating up thermobalance reacting furnace

A reaction furnace and balance technology, applied in the field of electric heating experimental equipment, can solve the problems of high price, complex structure of thermobalance, difficult processing, etc., and achieve the effects of high measurement accuracy, convenient on-line or off-line analysis, and large controllable range

Active Publication Date: 2010-08-11
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
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Problems solved by technology

The traditional thermobalance has complex structure, difficult processing and high price, and can only analyze o...

Method used

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  • Controllable fast-heating up thermobalance reacting furnace
  • Controllable fast-heating up thermobalance reacting furnace
  • Controllable fast-heating up thermobalance reacting furnace

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Embodiment Construction

[0014] Combine below figure 1 The structure and working process of the present invention are described in further detail.

[0015] The high temperature furnace reaction device is composed of a furnace body 3, a corundum tube 4, a lower heating element 6, an upper heating element 7, an upper temperature measuring thermocouple 17 and a lower temperature measuring thermocouple 18. The high-temperature furnace reaction device adopts two-stage heating. The reaction tube is corundum tube 4, and the heating bodies 6 and 7 are silicon carbide rods. The rate controllable range is large. The heating elements 6, 7 and thermocouples 17, 18 at the upper and lower ends are respectively placed on the outer wall of the corundum tube 4, and the temperature signals measured by the thermocouples 17, 18 are collected and transmitted through the circuit control system in the electronic control device, and finally The operation interface provided by the computer control system is used to complete...

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Abstract

The invention discloses a controllable fast-heating up thermobalance reacting furnace, comprising a high temperature furnace reaction unit, a balance weighting device, an air control device and an electronic control unit, wherein the high temperature furnace reaction unit uses two-section heating, the temperature of the furnace body is set, collected and transmitted by the electronic control device; and when in an experiment, the air control device adjusts the air atmosphere in the high temperature furnace reaction unit, a sample is rapidly placed in a constant temperature zone of the high temperature furnace reaction unit to realize rapid heating up by a balance lifting mechanism in the balance weighting device, and mass change of the sample is converted into electronic signals in real time to be transmitted to the electronic control device for continuous monitoring and storing. The invention has the characteristics of large controllable range of heating rate, large range of test sample amount and controllable reaction atmosphere, thus meeting the requirement of the thermobalance test research under various reaction conditions with different sample amounts and heating rate; and common measurement equipment can perform on-line air component analysis, thus being favor of disclosing the action mechanism and control strategy in the reaction process.

Description

technical field [0001] The invention belongs to electric heating experimental equipment, and in particular relates to a controllable large-scale thermobalance reaction furnace, which is mainly suitable for large-sample thermogravimetric test and analysis of various solid fuels under different reaction atmospheres and heating rate conditions. Background technique [0002] A thermobalance is an instrument that measures the mass of a sample as it changes with temperature under programmed temperature control conditions. The traditional thermobalance has complex structure, difficult processing and high price, and can only analyze or test micro samples under the conditions of conventional reaction atmosphere and slow temperature program (0-20°C / min). Contents of the invention [0003] The purpose of the present invention is to provide a controllable rapid heating thermobalance reaction furnace with simple structure, easy operation and low price, which can meet the needs of therm...

Claims

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Application Information

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IPC IPC(8): F27B17/02G01N5/04
Inventor 姚洪徐明厚王泉斌于敦喜王晟孚
Owner HUAZHONG UNIV OF SCI & TECH
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