Method for measuring heat productivity of heating substance for calorimeter

A measurement method and calorific value technology, applied in the field of measurement instruments, can solve problems such as complex cooling models, and achieve the effects of ensuring accuracy, ensuring accuracy, and solving judgment errors

Active Publication Date: 2007-10-31
HUNAN SUNDY SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the two-way working temperature curve is used in the main phase, the cooling model at the end of the test is relatively complicated, and it takes 5 minutes to complete the actual measurement

Method used

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  • Method for measuring heat productivity of heating substance for calorimeter
  • Method for measuring heat productivity of heating substance for calorimeter
  • Method for measuring heat productivity of heating substance for calorimeter

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Referring to shown in Fig. 4, a kind of calorimeter of the present invention uses the measuring method of exothermic substance calorific value, a kind of calorimeter uses the measuring method of exothermic substance calorific value, it is characterized in that the steps are:

[0024] (1), take the air-dried sample and place it in the crucible, place the loaded crucible on the crucible support of the oxygen bomb, and install the ignition wire; add distilled water into the oxygen bomb, and fill the oxygen bomb with an appropriate amount of oxygen;

[0025] (2) Add an appropriate amount of water (such as 1L) into the inner barrel of the calorimeter, put the oxygen bomb into the inner barrel, and cover the lid;

[0026] (3) After starting the inner barrel to stir for about 5 minutes, the temperature of the inner barrel reaches the ...

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Abstract

This invention discloses one measurement method for thermal device, which comprises the following steps: a, taking air drying device into pot and putting it on oxygen bomb rack and loading with light wire; adding stilled water into oxygen bomb injected with oxygen; b, adding proper water into inner barrel of thermal device and putting the bomb into inner barrel and covering; c, starting inner barrel mixing to keep inner temperature to balance T0 and controlling thermal device temperature to ensure work and whole curve between environment and control point sections; d, electrifying to read inner barrel temperature and experimenting main period when the temperature is lifted to zero; e, according to the computation results, computing the sample thermal volume.

Description

technical field [0001] The invention mainly relates to a measuring instrument used for measuring the calorific value of coal, oil or other exothermic substances in coal, petrochemical or electric power industries, in particular to a method for measuring the calorific value of exothermic substances used in calorimeters. Background technique [0002] The calorific value is measured in a closed container (commonly known as an oxygen bomb). In the presence of excess oxygen, an appropriate amount of sample is ignited and fully combusted, and the calorific value is calculated from the increase in water temperature. In order to obtain reliable measurement results and reduce the heat exchange (radiation or heat absorption) between the inner barrel of the oxygen bomb and the surrounding environment due to the temperature difference, in the prior art, an outer barrel is generally arranged outside the inner barrel, and the temperature of the outer barrel is controlled. To eliminate the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/44G01N5/00G01K17/00
Inventor 朱先德
Owner HUNAN SUNDY SCI & TECH DEV
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