CN102590276A - Method for measuring static combustion rate of cigarette - Google Patents
Method for measuring static combustion rate of cigarette Download PDFInfo
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- CN102590276A CN102590276A CN2012100606879A CN201210060687A CN102590276A CN 102590276 A CN102590276 A CN 102590276A CN 2012100606879 A CN2012100606879 A CN 2012100606879A CN 201210060687 A CN201210060687 A CN 201210060687A CN 102590276 A CN102590276 A CN 102590276A
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Abstract
The invention discloses a method for measuring a static combustion rate of a cigarette. The method is characterized by comprising the following steps of respectively inserting two thermocouples connected with a temperature data recording device into a set position of a measured cigarette sample along an axial direction; igniting the cigarette by an igniter and starting to record temperature data, wherein when a static combustion process of the cigarette is finished, the temperature data is finished being recorded, and the temperature data and corresponding time data are stored at the same time; performing subtraction according to characteristic time points of two tendency graphs of the temperature data of the two thermocouples, which are changed along with the time, and thus obtaining the static combustion rate by dividing a difference value of the time points from a distance between the two thermocouples. The method has the advantage that a measurement result can reflect an internal combustion state of the cigarette truly. According to the calculation of the static combustion rate, the change of the temperature of a detection point is considered, and the detected object is the internal temperature of the cigarette, so that the problems of untidiness of shapes of combustion lines and non-uniformity of propelling speeds are solved, and the accuracy of a detection result is improved.
Description
Technical field:
The present invention relates to a kind of assay method of cigarette burning performance, specifically is a kind of assay method that is used for the quiet combustion speed of Cigarette.
Background technology:
The quiet combustion speed of Cigarette is the important indicator that influences the puff number and the fired state thereof of cigarette, and then can influence the cigarette smoke quality.The quiet combustion speed of cigarette is that cigarette is not having under the situation of aspirating, and the cigarette burning district is along the mean speed of cigarette axial advance, and unit is mm/min.Present no CORESTA recommend method or iso standard and domestic standard, the quiet combustion speed detection method of cigarette commonly used has following 2 kinds: (1) cotton thread method, according to ISO 3612-1977 (abrogating) " Tobacco and tobacco products; Cigarettes; Determination of rate of free combustion ", use cigarette burning velocity determination appearance; (2) utilize vision sensor that the burning rate of cigarette is gathered, like patent ZL200820080422.6 " the quiet combustion velocity determination of a kind of cigarette appearance ".
Above-mentioned two kinds of methods of measuring the quiet combustion speed of cigarette all are to utilize the cigarette surface temperature to judge the start-stop signal of burning on principle.The cotton thread method is on the microswitch of 40mm, to twine cotton thread, and when the cigarette burning line arrived the cotton thread position, cotton thread was blown, and the microswitch of its winding ejects, and confirms the start and end time of burning.The vision sensor method is to utilize vision sensor to detect cigarette surface solid-state temperature or burning line position, utilizes the translational speed of the certain surface solid-state temperature point in the quiet combustion process or the line that burns to calculate the quiet combustion speed of cigarette.Phenomenons such as two kinds of method of testings are all closely related with the burning line, in the actual quiet combustion process of cigarette, exist the burning wire shaped irregular, and burning line fltting speed is inhomogeneous make that the testing result discreteness is bigger.
Summary of the invention
The problem that the object of the invention exists to above-mentioned existing method just proposes a kind of quiet combustion rate determination of cigarette method that can truly reflect the cigarette burning state, and this method testing result accuracy is higher, and can truly reflect the quiet burning state of inner cigarette.
The objective of the invention is to realize through following technical scheme:
The assay method that is used for the quiet combustion speed of Cigarette of the present invention is: the desired location at tested Cigarette sample inserts two thermopairs that are connected with the temperature data pen recorder ((the thermopair diameter is 0.25mm) vertically respectively; Lighter lights a cigarette and the opening entry temperature data; After the cigarette process of burning and sucking finished, the temperature data record was accomplished, simultaneously storage temperature data and corresponding time data; Through to two thermo-electric couple temperature datas trend map over time; Utilize the characteristic time point of two trend maps to differ from and subtract, utilize two distances between thermopair to obtain quiet combustion speed divided by the difference result of above-mentioned time point simultaneously, unit is mm/min (mm/min).
Concrete steps are following:
The preparation of a, cigarette sample; In temperature is 22 ± 2 ℃; Relative humidity is under 60 ± 5% the environment; With cigarette sample balance 48 hours, select cigarette weight at hundred average individual cigarette weight ± 20mg of sample, some of the cigarette of resistance to suction in average single the resistance to suction ± 50Pa scope of hundred samples;
Fixing of b, cigarette sample and thermopair; Radially using cushion one aperture in advance apart from cigarette burning end 10mm and 50mm place; To make things convenient for the insertion of thermopair, to hold the thermopair clamp assemblies and make two thermopairs insert cigarette simultaneously, insertion depth is cigarette radius (being accurate to 0.1mm);
C, quiet combustion temperature data acquisition; Cigarette and thermopair clamp assemblies stationary installation integral body are moved to constant temperature and humidity laboratory or respective detection space; Light a cigarette and opening entry temperature data and time data with lighter; The temperature acquisition frequency is per second 10Hz, storage temperature data and time data after data acquisition is accomplished;
The calculating of d, quiet used time of combustion partial-length of cigarette utilizes temperature data to draw temperature curve, calculates the time coordinate X when maximum temperature
1, in like manner can calculate the time coordinate X of second temperature curve maximum temperature
2, cigarette from the quiet used time of the B of combustion point of A point is: t=X
2-X
1, unit is min;
E, the quiet combustion speed of calculating cigarette, through the quiet combustion speed of formula v=40/t calculating cigarette, v is the quiet combustion speed of cigarette in the formula, the mm/min of unit; Get the quiet combustion speed of the mean value of some the quiet combustion speed of cigarette as this sample.
Assay method of the present invention has following advantage:
(1) repeatability of test result is superior to classic method;
(2) test result can truly reflect the inner cigarette fired state.The situation of check point temperature variation is considered in the calculating of quiet combustion speed in this method; And detection is the inner cigarette temperature; Thereby eliminated the irregular and uneven problem of fltting speed of burning wire shaped; Make the testing result accuracy improve, and can truly reflect the quiet burning state of inner cigarette.
Description of drawings
Fig. 1 is the temperature curve with 2 check points of cigarette.
Structural representation when Fig. 2 is the cigarette test.
Fig. 3 is cigarette and thermopair clamp assemblies stationary installation synoptic diagram.
Among the figure: X
1, X
2Be the quiet only time point of lighting, A, B are that quiet lighting ended check point, 1. trip bolt, 2. rack rod; 3. compensation lead of thermocouple, 4. thermocouple signal plug, 5. thermopair clamp assemblies, 6. thermopair clamped firmware; 7. thermopair, 8. tested cigarette, 9. folder cigarette device.
Embodiment
To combine accompanying drawing that assay method is further specified below the present invention:
The preparation of a, cigarette sample was 22 ± 2 ℃ in temperature, and relative humidity is under 60 ± 5% the environment, with cigarette sample balance 48 hours.Utilize multi-functional test desk to select cigarette weight, 10 of the cigarette of resistance to suction in average single the resistance to suction ± 50Pa scope of hundred samples at hundred average individual cigarette weight ± 20mg of sample.
Fixing of b, cigarette sample and thermopair; Radially using cushion one aperture in advance apart from cigarette burning end 10mm and 50mm place; To make things convenient for the insertion of thermopair, hold the thermopair clamp assemblies and make two thermopairs insert cigarette simultaneously, with rack rod thermopair clamp assemblies, cigarette, folder cigarette device are connected and fixed; Guarantee that the each several part relative position does not change (see figure 3) with spatial movement, insertion depth is cigarette radius (being accurate to a 0.1mm) (see figure 2).
C, quiet combustion temperature data acquisition; Cigarette and thermopair clamp assemblies stationary installation integral body are moved to constant temperature and humidity laboratory or respective detection space; Light a cigarette and opening entry temperature data and time data with lighter; The temperature acquisition frequency is per second 10Hz, storage temperature data and time data after data acquisition is accomplished.
The calculating of d, quiet used time of combustion partial-length of cigarette utilizes temperature data to draw the temperature curve (see figure 1), calculates the time coordinate X when maximum temperature
1, in like manner can calculate the time coordinate X of second temperature curve maximum temperature
2, cigarette from the quiet used time of the B of combustion point of A point is: t=X
2-X
1, unit is min;
E, the quiet combustion speed of calculating cigarette.Through the quiet combustion speed of formula v=40/t calculating cigarette, v is the quiet combustion speed of cigarette in the formula, the mm/min of unit.At last, get the quiet combustion speed of the mean value of 10 quiet combustion speed of cigarette as this sample.Table 1 is the testing result of this method and the contrast of traditional cotton collimation method.
Claims (3)
1. assay method that is used for the quiet combustion speed of Cigarette, it is characterized in that: the desired location at tested Cigarette sample inserts two thermopairs that are connected with the temperature data pen recorder vertically respectively; Utilize lighter to light a cigarette and the opening entry temperature data; After the quiet combustion process of cigarette finishes; Temperature data record is accomplished, and storage temperature data and corresponding time data simultaneously are through to two thermo-electric couple temperature datas trend map over time; Utilize the characteristic time point of two trend maps to differ from and subtract, utilize two distances between thermopair to obtain quiet combustion speed simultaneously divided by the difference result of above-mentioned time point.
2. the assay method that is used for the quiet combustion speed of Cigarette according to claim 1, it is characterized in that: concrete steps are following:
The preparation of a, cigarette sample is 22 ± 2 ℃ in temperature, and relative humidity is under 60 ± 5% the environment, with cigarette sample balance 48 hours, selects some of cigarette;
Fixing of b, cigarette sample and thermopair radially used cushion one aperture in advance apart from cigarette burning end 10mm and 50mm place, holds the thermopair clamp assemblies and makes two thermopairs insert cigarette simultaneously, and insertion depth is the cigarette radius;
C, quiet combustion temperature data acquisition; Cigarette and thermocouple clamp assemblies stationary installation integral body are moved to constant temperature and humidity laboratory or respective detection space; Light a cigarette and opening entry temperature data and time data with lighter; The temperature acquisition frequency is per second 10Hz, storage temperature data and time data after data acquisition is accomplished;
The calculating of d, quiet used time of combustion partial-length of cigarette utilizes temperature data to draw temperature curve, calculates the time coordinate X of maximum temperature
1, in like manner can calculate the time coordinate X of second temperature curve maximum temperature
2, cigarette from the quiet used time of the B of combustion point of A point is: t=X
2-X
1, unit is min;
E, the quiet combustion speed of calculating cigarette, through the quiet combustion speed of formula v=40/t calculating cigarette, v is the quiet combustion speed of cigarette in the formula, the mm/min of unit; Get the quiet combustion speed of the mean value of some the quiet combustion speed of cigarette as this sample.
3. the assay method that is used for the quiet combustion speed of Cigarette according to claim 1 and 2 is characterized in that: said thermopair diameter is 0.25～0.30mm.
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| CN201210060687.9A CN102590276B (en) | 2012-03-09 | 2012-03-09 | Method for measuring static combustion rate of cigarette |
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| CN201210060687.9A CN102590276B (en) | 2012-03-09 | 2012-03-09 | Method for measuring static combustion rate of cigarette |
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| CN102590276B CN102590276B (en) | 2014-02-12 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897847A (en) * | 2015-06-16 | 2015-09-09 | 安徽中烟工业有限责任公司 | Method and device for testing burning rate of carbonaceous heat source |
| CN105158418A (en) * | 2015-08-18 | 2015-12-16 | 北京工业大学 | Smoking simulation mechanism |
| CN105352961A (en) * | 2015-11-06 | 2016-02-24 | 浙江中烟工业有限责任公司 | Cigarette combustion rate measuring method |
| CN106770450A (en) * | 2016-11-17 | 2017-05-31 | 中国烟草总公司郑州烟草研究院 | A kind of detection method of charcoal hot type cigarette hot body ignition temperature, Burn-out temperature and firing duration |
| CN108279256A (en) * | 2018-02-02 | 2018-07-13 | 中国烟草总公司郑州烟草研究院 | A kind of cigarette based on temperature barycenter deflagrates rate characterizing method |
| CN110108833A (en) * | 2019-05-24 | 2019-08-09 | 中国农业科学院烟草研究所 | A kind of measuring method of cigarette burn rate |
| CN110455861A (en) * | 2019-08-08 | 2019-11-15 | 西安近代化学研究所 | A kind of solid propellant combustion rate and combustion wave synchronous detecting method |
| CN110967442A (en) * | 2019-12-27 | 2020-04-07 | 江苏中烟工业有限责任公司 | Method and system for detecting instantaneous burning rate of cigarette |
| CN111855887A (en) * | 2020-07-01 | 2020-10-30 | 福建中烟工业有限责任公司 | Cigarette smoldering test system and cigarette smoldering test method |
| CN113876038A (en) * | 2021-10-26 | 2022-01-04 | 湖北中烟工业有限责任公司 | Method and device for measuring and starting temperature of smoke of heated cigarette |
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| CN201188099Y (en) * | 2008-05-07 | 2009-01-28 | 郑州嘉德机电科技有限公司 | Determinator for cigarette freely combustion speed |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897847A (en) * | 2015-06-16 | 2015-09-09 | 安徽中烟工业有限责任公司 | Method and device for testing burning rate of carbonaceous heat source |
| CN105158418A (en) * | 2015-08-18 | 2015-12-16 | 北京工业大学 | Smoking simulation mechanism |
| CN105352961B (en) * | 2015-11-06 | 2018-01-30 | 浙江中烟工业有限责任公司 | A kind of cigarette burn rate assay method |
| CN105352961A (en) * | 2015-11-06 | 2016-02-24 | 浙江中烟工业有限责任公司 | Cigarette combustion rate measuring method |
| CN106770450B (en) * | 2016-11-17 | 2019-01-22 | 中国烟草总公司郑州烟草研究院 | A kind of detection method of charcoal hot type cigarette heating source combustion characteristics |
| CN106770450A (en) * | 2016-11-17 | 2017-05-31 | 中国烟草总公司郑州烟草研究院 | A kind of detection method of charcoal hot type cigarette hot body ignition temperature, Burn-out temperature and firing duration |
| CN108279256A (en) * | 2018-02-02 | 2018-07-13 | 中国烟草总公司郑州烟草研究院 | A kind of cigarette based on temperature barycenter deflagrates rate characterizing method |
| CN108279256B (en) * | 2018-02-02 | 2020-10-30 | 中国烟草总公司郑州烟草研究院 | Cigarette instantaneous burning rate characterization method based on temperature centroid |
| CN110108833A (en) * | 2019-05-24 | 2019-08-09 | 中国农业科学院烟草研究所 | A kind of measuring method of cigarette burn rate |
| CN110455861A (en) * | 2019-08-08 | 2019-11-15 | 西安近代化学研究所 | A kind of solid propellant combustion rate and combustion wave synchronous detecting method |
| CN110967442A (en) * | 2019-12-27 | 2020-04-07 | 江苏中烟工业有限责任公司 | Method and system for detecting instantaneous burning rate of cigarette |
| CN110967442B (en) * | 2019-12-27 | 2022-05-06 | 江苏中烟工业有限责任公司 | Method and system for detecting instantaneous burning rate of cigarette |
| CN111855887A (en) * | 2020-07-01 | 2020-10-30 | 福建中烟工业有限责任公司 | Cigarette smoldering test system and cigarette smoldering test method |
| CN113876038A (en) * | 2021-10-26 | 2022-01-04 | 湖北中烟工业有限责任公司 | Method and device for measuring and starting temperature of smoke of heated cigarette |
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