Filter tip trapped crotonaldehyde concentration distribution pattern measuring method

A technology of concentration distribution and crotonaldehyde, which is applied in the field of cigarette technology research, can solve problems such as the distribution mode of crotonaldehyde intercepted by filters.

Inactive Publication Date: 2013-09-11
CHINA TOBACCO HUNAN INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Most of the above is to evaluate the filtering effect of various filters on smoke components through smoke analysis. At present, there is no research report on the distribution mode of crotonaldehyde intercepted by filters.

Method used

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  • Filter tip trapped crotonaldehyde concentration distribution pattern measuring method
  • Filter tip trapped crotonaldehyde concentration distribution pattern measuring method
  • Filter tip trapped crotonaldehyde concentration distribution pattern measuring method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Longitudinal distribution pattern of crotonaldehyde intercepted by six kinds of filters

[0037]By cutting the six kinds of filters in the radial direction multiple times at different positions after suction, the crotonaldehyde content in each part of the filter was analyzed, and the concentration of crotonaldehyde intercepted in different parts of the filter was calculated. The polynomial fitting was carried out on the distribution of aldehyde concentration, and the longitudinal distribution patterns of six kinds of unstructured filters intercepted crotonaldehyde were obtained. figure 2 Longitudinal distribution pattern of crotonaldehyde intercepted by six kinds of filters. The concentration of crotonaldehyde intercepted by ordinary filter tips increases from the tobacco shredded end of the filter to the smoking end at first, then tends to be flat, and decreases slightly at the rear of the smoking end ( figure 2 , A). The vertical distribution of the concentration ...

Embodiment 2

[0039] Cross-sectional radial distribution pattern of crotonaldehyde intercepted by six kinds of filters

[0040] Different from the longitudinal distribution mode, in the research on the radial distribution of crotonaldehyde intercepted by filters, on the basis of cutting the filters in three equal parts radially, the filters were cut in concentric circles with different radii in the radial direction. Because the diameter of the filter tip is only about 7.6mm, only two concentric circles with different radii are cut in the radial direction, that is, R 1 =1.26mm, R 2 =2.52mm. Analyze the amount of crotonaldehyde in the inner and outer filter parts after cutting respectively (the three filter parts are combined), and calculate and use the relationship model between the loss rate of crotonaldehyde in radial cutting and the cutting area to correct the filter, etc. The amount of crotonaldehyde and the concentration of crotonaldehyde intercepted in the inner, middle and outer par...

Embodiment 3

[0042] Spatial distribution pattern of crotonaldehyde intercepted by six kinds of filters

[0043] The research results of the longitudinal and cross-sectional radial distribution patterns of filter-tipped crotonaldehyde can provide the concentration distribution information of filter-tipped crotonaldehyde in the longitudinal and cross-sectional radial directions, respectively. However, it cannot simultaneously display the concentration distribution information of the filter intercepted crotonaldehyde in the longitudinal direction and the radial direction of the cross section. The simultaneous acquisition of crotonaldehyde distribution information in the longitudinal and radial directions of the filter, that is, the spatial distribution pattern of crotonaldehyde in the filter, can more comprehensively reflect the real pattern of smoke intercepted by the filter. Firstly, cut the three radial parts of the filter into three sections, namely the shredded tobacco section, the middl...

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Abstract

The invention discloses a filter tip trapped crotonaldehyde concentration distribution pattern measuring method which comprises the following steps: concentrically cutting a sucked filter tip along the axis after radially cutting with a laser, or radially cutting a sucked filter tip after concentrically cutting along the axis; after finishing cutting, separating the annular filter tip sections from the corresponding number of cylindrical filter tip sections, carrying out quantitative analysis on the crotonaldehyde content in the cut and separated filter tip sections; and after calculating the crotonaldehyde concentration, carrying out polynomial fitting on filter tip trapped crotonaldehyde concentration distribution data, or carrying out polynomial fitting and interpolation analysis to obtain the filter tip trapped crotonaldehyde concentration distribution pattern. By measuring the longitudinal, cross section radial and spatial distribution pattern of different filter tip trapped crotonaldehyde concentrations, the invention can master the filtration trapped distribution characteristics of crotonaldehyde in filter tips in different structures, can quantitatively analyze the crotonaldehyde trapping efficiency and contribution of all parts of filter tips in different structures in flue gas, and can be used for evaluation of flue gas crotonaldehyde filtering quality of functional filter tips and design improvement of the functional filter tips.

Description

technical field [0001] The invention relates to a method for measuring the concentration distribution pattern of crotonaldehyde intercepted by a filter tip, and belongs to the field of cigarette technology research. Background technique [0002] Cigarette filters can effectively intercept tar and other harmful components in mainstream smoke. When developing low-tar cigarette products, improving the smoke retention efficiency of filters is often the first choice of researchers. With the continuous expansion of the market for low-tar and ultra-low-tar cigarette products, more and more researches have been conducted on the interception efficiency, interception law and interception mechanism of various components in mainstream smoke by filters of various materials and specifications. Pay attention to. Keith first studied the mechanism of smoke filtering by filters, and the research results showed that there are three main ways of filtering smoke particles in filters: inertial ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01N1/28
Inventor 文建辉杜文钟科军彭斌张晓兵刘惠民
Owner CHINA TOBACCO HUNAN INDAL CORP
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