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System and method for simultaneous determination of pressure dropping changes and combustion speeds during cigarette combustion

A technology of burning rate and cigarette, which is applied in the direction of chemical analysis using combustion, and achieves the effects of high work efficiency, easy operation and accurate test results.

Inactive Publication Date: 2016-04-27
CHINA TOBACCO JIANGSU INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In addition, the smoking rate of a cigarette can reflect the actual state of cigarette combustion under smoking conditions. At present, there is no device that meets the needs of simultaneously measuring the suction pressure drop and burning rate during the cigarette burning process.

Method used

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  • System and method for simultaneous determination of pressure dropping changes and combustion speeds during cigarette combustion
  • System and method for simultaneous determination of pressure dropping changes and combustion speeds during cigarette combustion
  • System and method for simultaneous determination of pressure dropping changes and combustion speeds during cigarette combustion

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Effect test

Embodiment 1

[0047] A device for simultaneously measuring the change in pressure drop and the burning rate of a cigarette when it is burned, such as figure 1 , including a cigarette holder 2, a three-way regulating valve 4, a pressure sensor 6, a signal processing module 7, a controller 8, a cigarette suction system 9, a synchronous trigger device 10 for capturing suction signals, an image acquisition system 11, Data processing system 12, the outlet of cigarette holder 2 is connected to port 1 of three-way regulating valve 4 through hose one 3; the input end of pressure sensor 6 is connected to port three of three-way regulating valve 4 through hose two 5 , the output end of the pressure sensor 6 is connected to the input end of the signal processing module 7; the input end of the cigarette suction system 9 is connected to port 2 of the three-way regulating valve 4, and the output end of the cigarette suction system 9 is connected to the synchronous trigger device 10 The input end of the s...

Embodiment 2

[0055] The structure of embodiment 2 is basically the same as that of embodiment 1. The difference between embodiment 2 and embodiment 1 is that the range of pressure sensor 6 is unchanged, its response frequency is 1KHz, the data acquisition frequency of signal processing module 7 is 50Hz, and the hose One 3. The sum of the volumes of the three-way regulating valve 4 and the hose two 5 is 10mL.

[0056] Take a certain brand of cigarette A, insert the cigarette into the holder of the smoking machine, and adjust the exposure of the camera. Input "A", test date, and test serial number in the "Information Entry" window of the cigarette burning speed measurement system, select a fixed length test, and set the burning length of the cigarette to 50 mm. Click "Start Test" on the measurement software and "Start Smoking" on the smoking machine software in sequence. The test ends when the cigarette burns to 50 mm. image 3 for the measurement result. In the "Data Query" window of the...

Embodiment 3

[0058] The structure of embodiment 3 is basically the same as that of embodiment 1. The difference between embodiment 3 and embodiment 1 is that the fixed length test is selected instead of the fixed port number test, the fixed number of suction ports is 9 ports, and the range of the pressure sensor 6 remains unchanged. , the response frequency is 1KHz, the data acquisition frequency of the signal processing module 7 is 100Hz, and the sum of the volumes of the first hose 3, the three-way regulating valve 4 and the second hose 5 is 100mL.

[0059] The system and method of this embodiment were used to measure the pressure drop and burning rate in the system when a certain brand of cigarette 1 was burning. Figure 4 is the measurement result in the third puff interval of the brand cigarette, Figure 5 It is the measurement result of the pressure drop of this brand of cigarettes within the time period of 15.42s to 15.67s. The results show that the cigarette is in a free burning st...

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Abstract

The invention provides a system and method for simultaneous determination of pressure dropping changes and combustion speeds during cigarette combustion. The system includes a cigarette clamping device, a three-way regulating valve, a pressure sensor, a signal processing module, a controller, a cigarette smoking system, a synchronous trigger device for capturing a smoking signal, an image acquisition system, and a data processing system. The input end of the image acquisition system is connected with the synchronous trigger device, and the output end of the image acquisition system is connected with the controller through the data processing system. A measurement system can real-timely monitor the pressure dropping changes in the cigarette combustion process, and at the same time, can determine the combustion speeds at cigarette smoking combustion and free combustion stages in real time; with detection of one cigarette, multiple sets of combustion data can be obtained simultaneously; and the measuring device and method have wide application range.

Description

technical field [0001] The invention relates to a system and method for simultaneously measuring pressure drop change and burning rate when cigarettes are burned. Background technique [0002] After the cigarette is ignited, charcoal is generated at the head end immediately, thus forming the combustion system of the cigarette. The combustion process of the cigarette is extremely complicated, accompanied by complex physical and chemical changes, and the smoke released during the combustion process of the cigarette has been identified. There are more than 5,000 kinds in the combustion process, and there are two different combustion modes in the combustion process, suction combustion and free combustion (ie smoldering). The solid matter of the burning part forms a cone - the burning cone, and there is a black charcoal line between the burning cone and the unburned cigarette paper. When smoking, the tobacco around the bottom of the cone is burned, the charcoal line moves backwa...

Claims

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Application Information

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IPC IPC(8): G01N31/12
CPCG01N31/12
Inventor 朱怀远庄亚东张媛曹毅尤晓娟沈晓晨刘献军韩开冬何红梅
Owner CHINA TOBACCO JIANGSU INDAL
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