Accelerating rate calorimeter and system thereof
A technology of accelerated calorimetry and heating layer, applied in electric furnace heating, microwave heating, maintenance of heating chamber, etc. It can solve the problems of long-term signal calibration process, slow signal response rate, serious heat flow loss, etc., and achieve increased thermal insulation. The effect of tracking rate and temperature range, high microwave absorption efficiency, and fast heating rate
Inactive Publication Date: 2019-09-24
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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Problems solved by technology
[0003] However, commercialized accelerating calorimeters at home and abroad all use thermal resistance or radiation heating. These two heating methods lead to serious heat loss, high energy consumption, slow signal response rate, signal delay and other defects. In practical applications Signal calibration process that takes a long time
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[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of specific embodiments. Apparently, the described embodiments are only some, not all, embodiments of the present invention. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.
[0027] See figure 1 , an accelerating calorimeter 100, comprising an adiabatic furnace body 10 and a microwave gen...
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Abstract
An accelerating rate calorimeter comprises an insulated furnace body and a microwave generator for emitting microwaves. The insulated furnace body comprises a cavity and a heating layer surrounding the cavity, wherein the heating layer has a microwave guiding port configured to guide the microwaves generated by the microwave generator into the cavity to heat the heating layer to a first temperature T1. The cavity is further provided therein with a thermal resistor and a sample holder for holding a sample. The thermal resistor is inserted into the sample and heats the sample to a second temperature T2. The first temperature T1 and the second temperature T2 are equal to each other in order to form a thermal insulation environment around the sample. The material of the heating layer is one or more of silicon carbide ceramic, graphite, and ferrite. The accelerating rate calorimeter provided by the invention heats the silicon carbide ceramic by microwave radiation, so that the temperature of the adiabatic cavity is consistent with the temperature of the sample, thereby achieving a good thermal insulation effect. The present invention also provides an accelerating rate calorimeter system.
Description
technical field [0001] The invention relates to the field of material and device detection, in particular to an acceleration calorimeter and a system thereof. Background technique [0002] The Accelerating Rate Calorimeter (ARC) was first invented and promoted by the Dow Chemical Company in the United States in the 1970s, with the purpose of obtaining the temperature, pressure, etc. of dangerous goods, energetic materials / devices, etc. quantitative information. The accelerated calorimeter is designed based on the principle of adiabatic, which can use a large sample volume and has high sensitivity. It can accurately measure the initial temperature of thermal decomposition of the sample, the temperature during the adiabatic decomposition process, the initial temperature of thermal runaway, and the change curve of pressure with time. . Compared with Differential Scanning Calorimetry (DSC) and Differential Thermal Analysis (DTA), accelerated calorimeter has the advantages of d...
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IPC IPC(8): G01N25/20F27B17/02F27D11/04F27D11/06F27D1/00F27D7/06H05B6/76
CPCF27B17/02F27D1/0033F27D7/06F27D11/04F27D11/06G01N25/20H05B6/76
Inventor 李宝华张锐康飞宇
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV