Tobacco combustion heat measurement apparatus

A technology of measuring devices and combustion devices, which is applied in the direction of material heat development, etc., can solve problems such as difficult to accurately measure tobacco combustion heat, poor repeatability, and inability to simulate the oxygen-poor combustion environment of cigarettes

Inactive Publication Date: 2014-08-13
CHINA TOBACCO ANHUI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The cone calorimeter is used to test the heat release of a specific regular sample under the condition of violent combustion in an open system with sufficient oxygen. Due to the particularity of the physical properties of the tobacco sample, it is difficult to achieve an accurate measurement of the heat of combustion of the tobacco.
When the micro-combustion calorimeter measures the combustion heat release of materials, a very small amount (generally 4-5 mg) of th

Method used

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  • Tobacco combustion heat measurement apparatus
  • Tobacco combustion heat measurement apparatus

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Embodiment 1

[0031] Embodiment 1: as figure 1 As shown, the device disclosed in the present invention includes a gas supply device 1 , a combustion device 2 , a filter device 3 and an analysis device 4 . The combustion device 2 is used to provide a stable supply of tobacco samples and a stable temperature field; the air supply device 1 is used to provide stable air with an adjustable flow rate for the combustion device 2; the filter device 3 is directly connected to the air outlet of the combustion device for purification The gas produced by combustion avoids pollution to the analysis device 4; the analysis device 4 is connected after the filter device 3, and is used to test the volume content of oxygen in the effluent gas.

[0032] When testing the heat of combustion of cigarettes, according to the theoretically calculated air supply rate and tobacco sample supply rate, set relevant parameters, by controlling the supply rate of tobacco samples in the combustion device 2 and the gas flow r...

Embodiment 2

[0035] Embodiment 2: as image 3 As shown, the off-line measurement device of this embodiment includes a gas supply device 1 , a combustion device 2 , a filter device 3 and an analysis device 4 . Wherein, the specific structure and connection sequence of the combustion device 2 , the air supply device 1 and the filter device 3 are the same as those in Embodiment 1, and will not be repeated here.

[0036] Described analytical device 4 comprises the gas collection bag 420 that communicates with second stage filter through the first pipeline, and the oxygen analyzer 42 that communicates with gas collection bag through the second pipeline; The control valve 410 is provided with a second control valve 430 and a purifier 440 on the second pipeline. The gas collection bag 420 is used to collect gas from the combustion device 2 . The purification device is used to remove the particles and moisture in the gas in the gas bag to avoid pollution to the oxygen analyzer.

[0037] When te...

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Abstract

The present invention discloses a tobacco combustion heat measurement apparatus, which comprises a gas supply device, a combustion device, a filtration device and an analysis device, wherein the combustion device comprises an annular heating furnace and a controller, one quartz pipe end arranged inside the annular heating furnace is a heating end, the other end is a non-heating end, the end is provided with a sealing member, a quartz boat is arranged in the quartz pipe and is pushed by a step motor to move at a uniform speed, the sealing member is provided with two through holes for a gas supply pipeline channel and a step motor transmission channel, the filtration device comprises a high temperature resistance filter directly connected with the gas outlet end of the annular heating furnace, and a second-stage filter communicated with the analysis device, the two stages of the filters are connected through a cooling pipeline, the filtration device is used for filtering particle phase substances and water in the combustion product so as to avoid influence on the analysis device, and the analysis device comprises an oxygen analyser communicated with the second-stage filter through a pipeline. According to the present invention, the accurate measurement of the combustion heat of the tobacco under the stable poor-oxygen combustion state is achieved.

Description

Technical field: [0001] The invention relates to a tobacco combustion heat measuring device, which belongs to the technical field of heat measurement. Background technique: [0002] Cigarette is a special consumer product that relies on burning to reflect its quality. Tobacco combustion heat is one of the important parameters of tobacco combustion characteristics, which is closely related to the sensory quality of tobacco, the formation of aroma components in smoke, the release of harmful substances, and the ignition characteristics of cigarettes. [0003] At present, the measuring devices that can be used for the heat of combustion of materials mainly include cone calorimeter and micro-combustion calorimeter. Both the cone calorimeter and the micro-combustion calorimeter are designed based on the principle of oxygen consumption, which specifically means that when a substance is burned, the oxygen consumed per unit mass will generate basically the same heat, that is, the ox...

Claims

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Application Information

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IPC IPC(8): G01N25/22
Inventor 周顺王孝峰何庆张亚平徐迎波
Owner CHINA TOBACCO ANHUI IND CO LTD
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