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Adiabatic calorimeter

An adiabatic calorimeter and adiabatic technology, applied in the field of calorimetry equipment, can solve the problem that the calorimeter cannot meet the requirements of thermal runaway, rapid temperature rise, etc.

Active Publication Date: 2019-07-05
TSINGHUA UNIV +1
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  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to solve the problem that the traditional calorimeter cannot meet the rapid temperature rise of thermal runaway, and provide a method that can provide an adiabatic environment for the sample when the test sample enters the thermal runaway state and rapidly heats up, so as to accurately measure the thermal runaway. Adiabatic calorimeter for process calorimetry

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Embodiment Construction

[0022] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail through the following embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0023] The serial numbers assigned to components in this document, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "connection" mentioned in this application all include direct and indirect connection (connection) unless otherwise specified. In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom"...

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Abstract

The invention provides an adiabatic calorimeter. A number of diathermal walls and an adiabatic cover form a closed storage space (a calorimetric cavity) together. A sample accommodation structure in the storage space can be suspended to carry solid powder or a liquid sample. A temperature control structure controls a heater and an adiabatic cover heater to provide an adiabatic environment for a test sample material, which ensures simultaneous temperature rise of a material in a material cavity, a material in an adiabatic cover material cavity and a measured sample material. When the temperature of the measured sample material reaches thermal runaway temperature and the temperature rise rate increases, and when the temperature rise rate of the heater cannot follow the temperature rise rateof the sample, the material in the material cavity and the measured sample material provide an adiabatic condition for the test sample material due to simultaneous exothermic reaction. The calorimetric accuracy in a thermal runaway process is ensured. The adiabatic calorimeter can accurately measure the temperature rise rate, heat release rate, heat release and other parameters during the thermalrunaway reaction process, and accurately carries out calorimetric measurement on the thermal runaway process.

Description

technical field [0001] The present application relates to the technical field of calorimetry equipment, in particular to an adiabatic calorimeter. Background technique [0002] In the design process of chemical products, the chemical reaction characteristic test of chemical materials is often involved. The chemical reaction law of materials is strongly related to temperature. Therefore, quantitative analysis of the heat production and gas production characteristics of chemical materials at a specific temperature is an important aspect of the study of chemical reaction characteristics. During the test process, it is often necessary to know the parameters such as the heat release rate, heat release, and adiabatic temperature rise of the reaction. These tests require This is done by means of calorimetric equipment. Thermal runaway is a violent chemical reaction process. Chemical materials undergo exothermic reactions at a certain temperature, and the heat generated heats up ...

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Application Information

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IPC IPC(8): G01K17/00G01K3/00
CPCG01K3/00G01K17/00
Inventor 陈天雨冯旭宁王芳欧阳明高卢兰光何向明韩雪冰
Owner TSINGHUA UNIV
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