CN108362818A - A method of based on detection pressure drop cigarette burn rate - Google Patents
A method of based on detection pressure drop cigarette burn rate Download PDFInfo
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- CN108362818A CN108362818A CN201810181300.2A CN201810181300A CN108362818A CN 108362818 A CN108362818 A CN 108362818A CN 201810181300 A CN201810181300 A CN 201810181300A CN 108362818 A CN108362818 A CN 108362818A
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Abstract
The invention discloses it is a kind of based on detection pressure drop cigarette burn rate method, using pressure drop detection means measure cigarette sample aspirate when by mouth pressure drop；Using the burn rate under the corresponding pump orifice sequence of burn rate detection means measure cigarette sample, burn rate value is denoted as y；When being aspirated using cigarette sample by mouth pressure drop as independent variable x, burn rate y be dependent variable, obtain the regression equation of cigarette burn rate prediction model；When measuring cigarette smoking again by mouth pressure drop after, substitute into above-mentioned prediction model to get to the prediction burn rate of the cigarette.Which simplify cigarette burning characterisitic parameter determination experiment processes；Basic detection method supplemented with burn rate can reduce the destabilizing factor during burn rate measures；Simplify the data handling procedure in traditional combustion speed detection method；For further instruct cigarette material research, cigarette burn and suck mechanism analysis and cigarette material design basic data is provided, have very strong practicability and wide applicability.
Description
Technical field
The present invention relates to a kind of methods of prediction cigarette burn rate, and in particular to one kind is based on detection pressure drop cigarette
The method of burn rate.
Background technology
With the continuous development of tobacco business technology, the characterisitic parameter index during cigarette burning is increasingly by universal
Concern, e.g., cigarette smoking pressure drop and burn rate influence each other between the two important parameters and interdepend, all with cigarette sense
Official's quality, flavor component is formed in flue gas and harmful substance release and cigarette ignition behavior etc. are closely related, therefore, is measured
The exploitation of technology is the direction that tobacco researcher is endeavoured.Currently, the research of cigarette burn rate is primarily focused on and is glowed
Rate (cigarette when not aspirating, Mean Speed that combustion wire is axially advanced), grinds in terms of the characterization for the rate that deflagrates
Study carefully less.
CN 203758946U disclose a kind of device measuring cigarette burn rate, when which can be traced cigarette burning
The variation of quality, while flue gas is trapped, and go out cigarette burning quality according to measured correlation data calculation and lose rate.
The temperature profile data of combustion cone, is spy with combustion cone internal temperature when CN 106324181A acquisition cigarette burnings
Levy temperature T0.5Point situation of movement characterize cigarette transient combustion rate.
The signal that cigarette smoking system is started suction by CN 105527371A disclosed in this laboratory is filled by synchronous triggering
It is transferred to controller after setting capture, control order signal processing module and image capturing system start to execute, with cigarette burning
Carbon point curve is that reference target calculates burn rate.But due to the raw material composition of cigarette, auxiliary material characteristic, inner cigarette
The irregular and fast gas flow rate of loose structure, Temperature Distribution can have an impact burn rate so that measure combustion
The work for burning rate this respect has very big directive significance.
Therefore establish a kind of detection method of cigarette burn rate and be necessary more, above method can be supplemented.
It is compared to the research to cigarette burn rate, the change in pressure drop during cigarette burning then rarely has document report.State
Outer Colard et al. has built a kind of experimental provision for measuring change in pressure drop during cigarette burning, and to pre- using model
The numerical value and measured value of experiment of survey compare analysis, and some scholars' founding mathematical models are for predicting that cigarette is lighted and non-point
Cigarette pressure drop during combustion, however the relationship research between this complicated variation system of pressure drop and burn rate is had not been reported.
In cigarette, the burn rate of tobacco is limited to the mass transfer rate that oxygen reaches tobacco surface, because of the viscosity of combustion zone gas
And speed increases with temperature and is increased, so there is air-flow in combustion zone relatively high resistance, and then is produced to cigarette entirety pressure drop
It is raw to influence.Therefore, in practical study, the correlation explored between pressure drop and burn rate is feasible and significant.
Invention content
To solve the deficiencies in the prior art, the purpose of the present invention is to provide one kind based on detection pressure drop, fast prediction volume
The method of cigarette burn rate.
In order to realize that above-mentioned target, the present invention adopt the following technical scheme that：
A method of based on detection pressure drop cigarette burn rate, include the following steps：
S1, using pressure drop detection means measure cigarette sample aspirate when by mouth pressure drop；
S2, using the burn rate under the corresponding pump orifice sequence of burn rate detection means measure cigarette sample, by burning speed
Rate value is denoted as y；
S3, regression analysis：When being aspirated using cigarette sample by mouth pressure drop as independent variable x, burn rate y be dependent variable, obtain
To the regression equation of cigarette burn rate prediction model：
Y=b2x2+b1X+c, b in formula1、b2, c be model coefficient；
S4, cigarette burn rate prediction：Measure cigarette smoking when by mouth pressure drop after, substitute into above-mentioned prediction model to get
To the prediction burn rate of the cigarette.
The detection method of above-mentioned pressure drop is：It is placed in pressure sensor in the pump orifice of cigarette sample, it will using processor
The pressure signal of measurement is converted to digital signal and exports in real time.
Above-mentioned pressure drop detection means include triple valve, pressure sensor, signal processor；
The pump orifice of the input termination cigarette sample of the triple valve, two output ends connect suction machine, pass through pressure respectively
Sensor connects processor；
The processor connects controller, and suction machine connects controller by synchronous triggering device.
Above-mentioned burn rate detection device includes control module, data processing module and image capture module, described image
Acquisition module is camera；
Control module is connected with suction machine, receives the suction signal of suction machine and controls image of the camera to cigarette burning when
It is acquired；Data processing module is recorded and is handled to the image collected, and output data result.
The duration of above-mentioned cigarette single sample suction is 1-3s.
The frequency of the shooting of above-mentioned camera is 30-70Hz.
Above-mentioned cigarette sample includes mixed type of the pressure drop range in 0-12kPa, Virginian-type cigarette.
Above-mentioned cigarette sample includes arbitrary circumference, length, filter tip degree of ventilation and cigarette paper section degree of ventilation.
Above-mentioned model coefficient b1、b2, c exploitation, including use PASW Statistics softwares.
The invention has the beneficial effects that：
A kind of method based on detection pressure drop cigarette burn rate of the present invention, by plurality of specifications cigarette smoking
In the process, measurement is subjected to regression analysis with burn rate under corresponding mouth sequence by mouth suction pressure drop, cigarette burning combustion can be obtained
Burn the prediction model of rate.It, only need to be by the way that, by mouth change in pressure drop, utilization is above-mentioned when measurement cigarette smoking for unknown cigarette sample
Prediction model can be obtained the burn rate under its corresponding mouth sequence.
A kind of method based on detection pressure drop cigarette burn rate of the present invention, simplifies cigarette burning characterisitic parameter
Determination experiment process can be obtained burn rate by measuring pressure drop, i.e. one group of measurement drop test can get pressure drop and burning
Two groups of data of rate；Basic detection method supplemented with burn rate, and this method can reduce the shakiness during burn rate measures
Determine factor；Simplify the data handling procedure in traditional combustion speed detection method；Further to instruct cigarette material research, volume
Cigarette burns and sucks mechanism analysis and cigarette material design provides basic data, has very strong practicability and wide applicability.
Description of the drawings
Fig. 1 is the structural schematic diagram of the pressure drop detection means of the present invention.
The meaning marked in attached drawing is as follows：1, cigarette, 2, cigarette clamper.
Specific implementation mode
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
The burn rate of the present invention refers to the rate that deflagrates under different suction modes in cigarette puff duration.
The cigarette pressure drop of the present invention refers to the cigarette system pressure under different suction modes in every mouthful of puff duration of cigarette
Mean value drops.
The burn rate detection device used in the present invention is the spontaneous development of our company (CN105527371A).
Sampling：Using GB/T 16447-2004《Tobacco and tobacco product adjust and the atmospheric environment of test》Defined item
Part balance select cigarette sample, for acquire under different pump orifice sequences by mouth pressure drop and burn rate.
Cigarette sample includes any circumference, random length, arbitrary filter tip degree of ventilation and arbitrary cigarette paper section degree of ventilation, pressure
Blended type cigarette sample or Virginian-type cigarette sample of the drop range in 0-12kPa.
A method of based on detection pressure drop cigarette burn rate, include the following steps：
S1, using pressure drop detection means measure cigarette sample aspirate when by mouth pressure drop.
The detection method of pressure drop is：It is placed in pressure sensor in the pump orifice of 1 sample of cigarette, will be measured using processor
Pressure signal be converted to digital signal and export in real time.
The pressure drop detection means of the present invention include triple valve, pressure sensor, signal processor；The input of triple valve terminates
The pump orifice of cigarette clamper 2, two output ends connect suction machine, connect processor by pressure sensor respectively；And processor connects
Controller, suction machine connect controller by synchronous triggering device.
According to GB/T 16450-2004《Conventional analysis is defined with smoking machine and standard conditions》Defined condition suction.
S2, using the burn rate under the corresponding pump orifice sequence of burn rate detection means measure cigarette sample, by burning speed
Rate value is denoted as y.
Burn rate detection device includes control module, data processing module and high speed camera (frequency acquisition 50Hz)；
Control module is connected with suction machine, receives the suction signal of suction machine and controls image of the camera to cigarette burning when and adopts
Collection；Data processing module is recorded and is handled to the image collected, and output data result.
Detection process：The acquisition parameters of setting high-speed camera, such as filming frequency, exposure in the control module in advance
Deng.The input cigarette information to be measured in suction machine software and cigarette burning velocity determination software (data processing module), selection are solid
Measured length or fixed puff number test；After the completion of information input, clicks " start on cigarette burning velocity determination software successively
" starting to aspirate " in test " and suction machine software opens cigar lighter lighting cigarette immediately.
When cigarette burning to setting length or setting mouth number, test terminates, and is looked into cigarette burning velocity determination software
Ask test result.Output result can show the instantaneous suction fuel and smoldering velocity of cigarette burning, can also calculate cigarette every mouth pumping
The average suction fuel and smoldering velocity of suction and the suction of whole branch cigarette.
S3, regression analysis：When being aspirated using cigarette sample by mouth pressure drop as independent variable x, burn rate y be dependent variable, obtain
To the regression equation of cigarette burn rate prediction model：
Y=b2x2+b1X+c, b in formula1、b2, c be model coefficient；
With PASW Statistics software exploitations, the following table 1 is obtained：
Regression equation R of the table 1 by burn rate under mouth pressure drop and corresponding mouth sequence2And model coefficient
As shown in Table 1, R2=0.924, illustrate cigarette by burn rate under port system pressure drop and corresponding mouth sequence have compared with
Apparent correlation obtains the regression equation of the two：
Y=2114.3x2-6799.2x+6027.3。
The results of analysis of variance shows that regression equation reaches the pole level of signifiance (p<0.0001), you can to predict the regression equation
It is used as more satisfactory prediction model.
S4, cigarette burn rate prediction：Measure cigarette smoking when by mouth pressure drop after, substitute into above-mentioned prediction model to get
To the prediction burn rate of the cigarette.
The desired effects reached for the present invention is further explained, using 4 trade mark cigarette samples for having neither part nor lot in modeling, one
Aspect detect the 2nd mouthful to the 5th mouthful of each sample by mouth suction system pressure drop, calculated under corresponding pump orifice sequence by predictive equation
Burn rate；On the other hand the burn rate under corresponding pump orifice sequence is acquired.
Compare the error of the burn rate obtained under two methods.It the results are shown in Table 2.
2 cigarette sample burn rate predicted value of table is compared with measured value
Sample is affected for the 1st mouthful due to extracting combustion by cigar lighter, study the two of the 2nd mouthful~the 5th mouthful of each cigarette
Supplemental characteristic.
Test result shows that cigarette burn rate predicted value and measured value difference are smaller, 20 groups of data only two groups of data phases
10% is slightly larger than to error, other 18 groups of data relative errors are respectively less than 10%, and the prediction result of prediction model is more accurate.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way above-described embodiment, all to be obtained by the way of equivalent substitution or equivalent transformation
Technical solution is all fallen in protection scope of the present invention.
Claims (9)
1. a kind of method based on detection pressure drop cigarette burn rate, which is characterized in that include the following steps：
S1, using pressure drop detection means measure cigarette sample aspirate when by mouth pressure drop；
S2, using the burn rate under the corresponding pump orifice sequence of burn rate detection means measure cigarette sample, by burn rate value
It is denoted as y；
S3, regression analysis：When being aspirated using cigarette sample by mouth pressure drop as independent variable x, burn rate y be dependent variable, rolled up
The regression equation of cigarette burn rate prediction model：
Y=b2x2+b1X+c, b in formula1、b2, c be model coefficient；
S4, cigarette burn rate prediction：Measure cigarette smoking when by mouth pressure drop after, substitute into above-mentioned prediction model to get to this
The prediction burn rate of cigarette.
2. a kind of method based on detection pressure drop cigarette burn rate according to claim 1, which is characterized in that institute
The detection method for stating pressure drop is：It is placed in pressure sensor in the pump orifice of cigarette sample, using processor by the pressure of measurement
Signal is converted to digital signal and exports in real time.
3. a kind of method based on detection pressure drop cigarette burn rate according to claim 1, which is characterized in that institute
It includes triple valve, pressure sensor, signal processor to state pressure drop detection means；
The pump orifice of the input termination cigarette sample of the triple valve, two output ends connect suction machine, pass through pressure sensing respectively
Device connects processor；
The processor connects controller, and suction machine connects controller by synchronous triggering device.
4. a kind of method based on detection pressure drop cigarette burn rate according to claim 1, which is characterized in that institute
It includes control module, data processing module and image capture module to state burn rate detection device, and described image acquisition module is
Camera；
Control module is connected with suction machine, receives the suction signal of suction machine and controls image progress of the camera to cigarette burning when
Acquisition；Data processing module is recorded and is handled to the image collected, and output data result.
5. a kind of method based on detection pressure drop cigarette burn rate according to claim 1, which is characterized in that institute
The duration for stating the suction of cigarette single sample is 1-3s.
6. a kind of method based on detection pressure drop cigarette burn rate according to claim 4, which is characterized in that institute
The frequency for stating the shooting of camera is 30-70Hz.
7. a kind of method based on detection pressure drop cigarette burn rate according to claim 1, which is characterized in that institute
It includes mixed type of the pressure drop range in 0-12kPa, Virginian-type cigarette to state cigarette sample.
8. a kind of method based on detection pressure drop cigarette burn rate according to claim 1, which is characterized in that institute
It includes arbitrary circumference, length, filter tip degree of ventilation and cigarette paper section degree of ventilation to state cigarette sample.
9. a kind of method based on detection pressure drop cigarette burn rate according to claim 1, which is characterized in that institute
State model coefficient b1、b2, c exploitation, including use PASW Statistics softwares.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810181300.2A CN108362818A (en) | 2018-03-06 | 2018-03-06 | A method of based on detection pressure drop cigarette burn rate |
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| CN201810181300.2A CN108362818A (en) | 2018-03-06 | 2018-03-06 | A method of based on detection pressure drop cigarette burn rate |
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