CN107607436A - A kind of cigarette dynamic resistance to suction computational methods based on standard aspiration pattern - Google Patents
A kind of cigarette dynamic resistance to suction computational methods based on standard aspiration pattern Download PDFInfo
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- CN107607436A CN107607436A CN201710777499.0A CN201710777499A CN107607436A CN 107607436 A CN107607436 A CN 107607436A CN 201710777499 A CN201710777499 A CN 201710777499A CN 107607436 A CN107607436 A CN 107607436A
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Abstract
The invention discloses a kind of cigarette dynamic resistance to suction computational methods based on standard aspiration pattern, change to pressure difference during cigarette smoking is tested, and pressure difference data is gathered in real time, sine curve fitting is carried out to pressure difference data, by P=asin (bt+c), fitting parameter a, b, c numerical value is determined, then determines suction period T, Proportional coefficient K, finally determines dynamic resistance to suction P17.5=V17.5/K.The invention provides a kind of cigarette dynamic resistance to suction computational methods based on standard aspiration pattern, not only principle is simple, the degree of accuracy is high, and can be also used for the calculating of dynamic resistance to suction during cigarette burning.
Description
Technical field
The invention belongs to cigarette quality detection technique field, and in particular to a kind of cigarette dynamic based on standard aspiration pattern
Resistance to suction computational methods.
Background technology
The resistance to suction stability of cigarette not only has important influence to the stability of cigarette smoke chemistry, while to the sense of cigarette
Official's mass is also that influence is huge.The test of existing Cigarette Draw Resistance is mainly measured using combined test stand, however combined test stand because
Limited by oneself factor can only measure cigarette it is unignited when resistance to suction.Dynamic resistance to suction during cigarette burning is mostly using pressure at present
The petition of surrender shows, but the definition of this and standard resistance drawing has certain deviation.
Clear stipulaties in the measure of cigarette and filter stick physical property：At the standard conditions, when a flow is 17.5mL/s
Steady air flow when flowing through the special resistance to suction master bar of tobacco, the pressure differential at its both ends is the suction of the special resistance to suction master bar of tobacco
Resistance.
Wang Le establishes difference in the approximate analysis of cigarette internal gas flow flow behavior under document difference aspiration phases and taken out
Cigarette internal gas flow flows one-dimensional analytical mathematical models under suction state, obtains 3R4F cigarette in iso standard aspiration phases last volume
The pressure drop of cigarette internal gas flow and rate distribution analytic solution, from analytic solution it can be seen that the pressure drop of inner cigarette air-flow and cigarette air flow rate
It is directly proportional.Tobacco business standard YC/T 22838.5-2009 is provided, when flow is that 17.5mL/s steady air flow flows through cigarette,
The pressure differential at its both ends is the resistance to suction of cigarette.According to dependency relation of the inner cigarette air-flow pressure drop with cigarette air flow rate and tobacco
The relevant regulations of professional standard YC/T 22838.5-2009, the present invention establish a kind of cigarette dynamic based on standard aspiration pattern
Resistance to suction computational methods, not only principle is simple for this method, the degree of accuracy is high, and can be also used for dynamic resistance to suction during cigarette burning
Calculating.
The content of the invention
Based on the deficiencies in the prior art, object of the present invention is to provide a kind of cigarette based on standard aspiration pattern to move
State resistance to suction computational methods.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of cigarette dynamic resistance to suction computational methods based on standard aspiration pattern, comprise the following steps：
(1) acquisition of pressure difference data：Change to pressure difference during cigarette smoking is tested, and gathers pressure difference data；
(2) pressure difference function curve is fitted：It is P (t) that pressure difference function is made in a suction period, and pressure difference maximum is expressed as
Pmax, scatter diagram is drawn to pressure difference data, and sine curve fitting is carried out to P (t), then have P (t)=asin (bt+c), Pmax
=a；Determine fitting parameter a, b, c numerical value；
(3) suction period T determination：Known according to the property of SIN functionObtain
(4) determination of Proportional coefficient K：Suction flow function is V (t) in a cycle, and suction flow maximum is
Vmax, then there is V (t)=Kasin (bt+c), Vmax=Ka, K unit are Pas/mL；
Known pumping volume is Q mL, according toObtain
(5) dynamic resistance to suction P17.5Determination：Because suction flow velocity is directly proportional to pressure difference, i.e.,It can obtain：
Wherein, V17.5Expression suction flow is 17.5mL/s.
Preferably, the acquisition of pressure difference data described in step (1) is tested using microchannel pressure detecting experimental bench, is adopted
Gathered in real time with data collecting instrument.
The invention provides a kind of cigarette dynamic resistance to suction computational methods based on standard aspiration pattern, not only principle it is simple,
The degree of accuracy is high, and can be also used for the calculating of dynamic resistance to suction during cigarette burning.
Brief description of the drawings
Fig. 1 is the pressure curve under bell suction mode；
Fig. 2 is change of the cigarette pressure drop with puff number.
Embodiment
In order that the technical purpose of the present invention, technical scheme and beneficial effect are clearer, with reference to specific embodiment
Technical scheme is further illustrated, but the embodiment is intended to explain the present invention, and it is not intended that right
The limitation of the present invention, in the examples where no specific technique or condition is specified, according to the technology described by document in the art or
Condition is carried out according to product description.Wherein, combined test stand and microchannel pressure detecting experiment porch belong to this area
Detecting instrument well known to Cigarette Draw Resistance detection.
Embodiment 1
A kind of cigarette dynamic resistance to suction computational methods based on standard aspiration pattern, comprise the following steps：
(1) acquisition of pressure difference data：Using microchannel pressure detecting experimental bench to being pressed in standard cigarettes 3R4F aspiration procedures
The change of difference is tested, and gathers pressure difference data in real time by pressure difference data acquisition instrument；
(2) pressure difference function curve is fitted：It is P (t) that pressure difference function is made in a suction period, and pressure difference maximum is expressed as
Pmax, scatter diagram, such as Fig. 1 are drawn to pressure difference data, and sine curve fitting is carried out to P (t)；
Then there are P (t)=asin (bt+c), Pmax=a；Determine fitting parameter a, b, c numerical value；
(3) suction period T determination：Known according to the property of SIN functionObtain
(4) determination of Proportional coefficient K：Suction flow function is V (t) in a cycle, and suction flow maximum is
Vmax, then there is V (t)=Kasin (bt+c), Vmax=Ka, K unit are Pas/mL；
Known pumping volume is Q mL, according toObtain
(5) dynamic resistance to suction P17.5Determination：Because suction flow velocity is directly proportional to pressure difference, i.e.,It can obtain：
Wherein, V17.5Expression suction flow is 17.5mL/s.
Combined test stand is respectively adopted to standard cigarettes 3R4F and microchannel pressure detecting experiment porch is tested, tests
It the results are shown in Table 1.Wherein, test 1 is the pressure difference data measured by microchannel pressure detecting experiment porch, according still further in this patentData obtained by conversion, the data for testing 2 are the data directly obtained using combined test stand test.
Variance analysis is carried out to data in table 1, its analysis result is shown in Table 2, P=0.496 5>0.05, it is taken as that test 1
There is no significant difference with test 2.
The resistance to suction test data of table 1
The resistance to suction data variance analytical table of table 2
Embodiment 2
A kind of cigarette dynamic resistance to suction computational methods based on standard aspiration pattern, comprise the following steps：
(1) acquisition of pressure difference data：Using microchannel pressure detecting experimental bench to certain trade mark ramuscule cigarette smoking during
The change of pressure difference is tested, and gathers pressure difference data in real time by pressure difference data acquisition instrument；
(2) pressure difference function curve is fitted：It is P (t) that pressure difference function is made in a suction period, and pressure difference maximum is expressed as
Pmax, scatter diagram, such as Fig. 2 are drawn to pressure difference data, and sine curve fitting is carried out to P (t)；
Then there are P (t)=asin (bt+c), Pmax=a；Fitting parameter a, b, c numerical value is determined, is shown in Table 3；
(3) suction period T determination：Known according to the property of SIN functionObtain
(4) determination of Proportional coefficient K：Suction flow function is V (t) in a cycle, and suction flow maximum is
Vmax, then there is V (t)=Kasin (bt+c), Vmax=Ka, K unit are Pas/mL；
Known pumping volume is Q mL, according toObtain
(5) dynamic resistance to suction P17.5Determination：Because suction flow velocity is directly proportional to pressure difference, i.e.,It can obtain：
It is shown in Table 4；Wherein, V17.5Expression suction flow is 17.5mL/s.
The fitting parameter of the cigarette difference puff number of table 3
By coefficient of determination R in table 320.98 is all higher than, therefore it is higher to be fitted the confidence level of pressure difference data using sine curve
And there is the good goodness of fit.
Dynamic resistance to suction, suction period T and the K value of the cigarette difference puff number of table 4
From table 4, the data of suction period T and Proportional coefficient K are relatively stable, illustrate to calculate using the present invention dynamic
The confidence level of state resistance to suction is higher.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (2)
1. a kind of cigarette dynamic resistance to suction computational methods based on standard aspiration pattern, it is characterised in that comprise the following steps：
(1) acquisition of pressure difference data：Change to pressure difference during cigarette smoking is tested, and gathers pressure difference data；
(2) pressure difference function curve is fitted：It is P (t) that pressure difference function is made in a suction period, and pressure difference maximum is expressed as
Pmax, scatter diagram is drawn to pressure difference data, and sine curve fitting is carried out to P (t), then have P (t)=asin (bt+c), Pmax
=a；Determine fitting parameter a, b, c numerical value；
(3) suction period T determination：Known according to the property of SIN functionObtain
(4) determination of Proportional coefficient K：Suction flow function is V (t) in a cycle, and suction flow maximum is Vmax, then
There is V (t)=Kasin (bt+c), Vmax=Ka, K unit are Pas/mL；Known pumping volume is Q mL, according toObtain
(5) dynamic resistance to suction P17.5Determination：Because suction flow velocity is directly proportional to pressure difference, i.e.,It can obtain：Wherein, V17.5Expression suction flow is 17.5mL/s.
2. the cigarette dynamic resistance to suction computational methods according to claim 1 based on standard aspiration pattern, it is characterised in that：Step
Suddenly the acquisition of pressure difference data described in (1) is tested using microchannel pressure detecting experimental bench, is carried out using data collecting instrument
Collection in real time.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318373A (en) * | 2018-02-02 | 2018-07-24 | 中国烟草总公司郑州烟草研究院 | A kind of characterizing method suitable for the cigarette dynamic resistance to suction under arbitrary suction mode |
| CN108333292A (en) * | 2018-02-05 | 2018-07-27 | 江苏中烟工业有限责任公司 | The devices and methods therefor of internal change in pressure drop during a kind of the real time measure cigarette burning |
| CN110333177A (en) * | 2019-08-09 | 2019-10-15 | 中国烟草总公司郑州烟草研究院 | A kind of cigarette segmentation resistance to suction lossless quick method of determination and evaluation stable based on air permeance for cigarette paper |
| CN110793881A (en) * | 2019-11-06 | 2020-02-14 | 云南中烟工业有限责任公司 | Method for rapidly measuring pressure drop of filter stick in suction process |
| CN112229454A (en) * | 2020-10-10 | 2021-01-15 | 中国烟草总公司郑州烟草研究院 | System and method for measuring flow differential pressure curve of smoke resistance standard part |
| CN112528494A (en) * | 2020-12-10 | 2021-03-19 | 云南中烟再造烟叶有限责任公司 | Establishment method for predicting paper filter stick suction resistance model |
| CN113049439A (en) * | 2021-03-15 | 2021-06-29 | 浙江中烟工业有限责任公司 | Cigarette dynamic resistance measuring device and method based on turntable smoking machine |
| CN116596185A (en) * | 2023-05-12 | 2023-08-15 | 北京建筑大学 | Ecological driving quantitative evaluation and track optimization method based on VSP distribution |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318373A (en) * | 2018-02-02 | 2018-07-24 | 中国烟草总公司郑州烟草研究院 | A kind of characterizing method suitable for the cigarette dynamic resistance to suction under arbitrary suction mode |
| CN108333292A (en) * | 2018-02-05 | 2018-07-27 | 江苏中烟工业有限责任公司 | The devices and methods therefor of internal change in pressure drop during a kind of the real time measure cigarette burning |
| CN110333177A (en) * | 2019-08-09 | 2019-10-15 | 中国烟草总公司郑州烟草研究院 | A kind of cigarette segmentation resistance to suction lossless quick method of determination and evaluation stable based on air permeance for cigarette paper |
| CN110333177B (en) * | 2019-08-09 | 2021-07-13 | 中国烟草总公司郑州烟草研究院 | Cigarette segmented suction resistance nondestructive rapid detection evaluation method based on cigarette paper air permeability stability |
| CN110793881A (en) * | 2019-11-06 | 2020-02-14 | 云南中烟工业有限责任公司 | Method for rapidly measuring pressure drop of filter stick in suction process |
| CN110793881B (en) * | 2019-11-06 | 2022-07-01 | 云南中烟工业有限责任公司 | Method for rapidly measuring pressure drop of filter stick in suction process |
| CN112229454A (en) * | 2020-10-10 | 2021-01-15 | 中国烟草总公司郑州烟草研究院 | System and method for measuring flow differential pressure curve of smoke resistance standard part |
| CN112528494A (en) * | 2020-12-10 | 2021-03-19 | 云南中烟再造烟叶有限责任公司 | Establishment method for predicting paper filter stick suction resistance model |
| CN112528494B (en) * | 2020-12-10 | 2022-10-11 | 云南中烟再造烟叶有限责任公司 | Method for establishing model for predicting paper filter stick suction resistance |
| CN113049439A (en) * | 2021-03-15 | 2021-06-29 | 浙江中烟工业有限责任公司 | Cigarette dynamic resistance measuring device and method based on turntable smoking machine |
| CN116596185A (en) * | 2023-05-12 | 2023-08-15 | 北京建筑大学 | Ecological driving quantitative evaluation and track optimization method based on VSP distribution |
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