CN109445284B - Ventilation rate control method based on difference between open type suction resistance and closed suction resistance - Google Patents

Ventilation rate control method based on difference between open type suction resistance and closed suction resistance Download PDF

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CN109445284B
CN109445284B CN201811458984.2A CN201811458984A CN109445284B CN 109445284 B CN109445284 B CN 109445284B CN 201811458984 A CN201811458984 A CN 201811458984A CN 109445284 B CN109445284 B CN 109445284B
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ventilation rate
suction resistance
closed
resistance
type suction
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CN109445284A (en
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熊文
李超
秦云华
刘巍
赵辉
李娥贤
吴佳
王璐
张子龙
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China Tobacco Yunnan Industrial Co Ltd
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    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
    • G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
    • G05B13/04—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
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Abstract

The invention relates to a ventilation rate control method based on the difference between open type suction resistance and closed suction resistance, and the ventilation rate and the open type suction resistance and the closed suction resistance satisfy the following relationship: y = a + b (CPD-PD); wherein Y is the ventilation rate; a is a first constant; b is a second constant; PD is open draw resistance; CPD is the closed draw resistance. The difference between closed type suction resistance and open type suction resistance is used as a variable, the ventilation rate is used as a dependent variable, the correlation between the closed type suction resistance and the open type suction resistance is analyzed, and the remarkable linear correlation exists between the ventilation rate and the total ventilation rate of the filter tip and the difference between the closed type suction resistance and the open type suction resistance. The invention respectively establishes models between the filter tip ventilation rate, the total ventilation rate and the cigarette paper ventilation rate and the closed/open type suction resistance, and can control the filter tip ventilation rate through the models, thereby laying a foundation for the subsequent quality early warning and control research.

Description

Ventilation rate control method based on difference between open type suction resistance and closed suction resistance
Technical Field
The invention relates to a ventilation rate control method, in particular to a ventilation rate control method based on the difference between open suction resistance and closed suction resistance.
Background
The control of the ventilation rate is an important index influencing the cigarette quality, the ventilation rate is not an independent cigarette physical index, and the size or fluctuation range of the ventilation rate is influenced by various factors. Among the physical indexes of cigarettes, the smoking resistance and the total ventilation rate are frequently unqualified items. The research shows that when the pressure drop of the cigarette section is reduced and the ventilation rate is reduced, the ventilation rate of the filter tip section is also reduced; when the pressure drop of the cigarette section is increased (after the influence of the filled tobacco shreds) and the ventilation rate is reduced, the ventilation rate of the filter tip section is increased; as the ventilation rate of the filter segment decreases, the ventilation of the tobacco rod segment also decreases. Based on the principle of testing the ventilation rate by the QTM at present, the ventilation rates of the cigarette branch section and the filter section are closely related, and the ventilation rates of the two sections are mutually influenced under the condition of constant air output. The filter ventilation is closely related to the air permeability of cigarette paper of the cigarette section and the filling condition of tobacco shreds.
Furthermore, the existence of the interaction between the ventilation rate and the suction resistance requires confirmation of whether or not there is a definite relationship of influence between the ventilation rate and the various suction resistances. The draw resistance comprises open draw resistance and closed draw resistance, the difference or consistency between the filter tip ventilation rate, the open draw resistance and the closed draw resistance and the existence of the ventilation rate cause the difference of the cigarette draw resistance, and furthermore, in order to control the ventilation rate of the cigarette and ensure the quality stability of the cigarette, the relation between the ventilation rate and various draw resistances is necessary to be researched.
Disclosure of Invention
In order to solve the technical problems, the invention provides a ventilation rate control method based on the difference between the open type suction resistance and the closed type suction resistance, the method takes the difference between the closed type suction resistance and the open type suction resistance as a variable, the ventilation rate as a dependent variable, and the correlation between the closed type suction resistance and the open type suction resistance is analyzed. The total ventilation rate, filter ventilation rate and cigarette paper ventilation rate are controlled by controlling the difference between the open draw resistance and the closed draw resistance.
The technical scheme of the invention is as follows:
a ventilation rate control method based on the difference between open type suction resistance and closed type suction resistance is disclosed, wherein the following relations are satisfied between the ventilation rate and the open type suction resistance and the closed type suction resistance:
Y=a+b*（CPD -PD）；
wherein Y is the ventilation rate; a is a first constant; b is a second constant; PD is open draw resistance; CPD is the closed draw resistance.
Further, ventilation rates include total ventilation rate, filter ventilation rate, and cigarette paper ventilation rate.
Further, the total ventilation rate TotV and the open suction resistance and the closed suction resistance satisfy the following relationship:
TotV=8.229+120.7*（CPD -PD）。
further, the filter ventilation rate Vent and the open type suction resistance and the closed type suction resistance satisfy the following relationship:
Vent=2.713+109.7*（CPD -PD）。
further, the ventilation rate PVnt of the cigarette paper and the open type suction resistance and the closed type suction resistance satisfy the following relation:
PVnt=5.515+10.95*（CPD -PD）。
compared with the prior art, the invention has the following beneficial effects:
(1) the difference between closed type suction resistance and open type suction resistance is used as a variable, the ventilation rate is used as a dependent variable, the correlation between the closed type suction resistance and the open type suction resistance is analyzed, the remarkable linear correlation exists between the ventilation rate of the filter, the total ventilation rate and the difference between the closed type suction resistance and the open type suction resistance, the fact that the ventilation rate of the filter occupies an absolute proportion in the total ventilation rate is considered, the fact that the ventilation rate of the filter is a main factor causing the change of the suction resistance is explained, and the suction resistance is not a main factor causing the change of the ventilation rate of the filter.
(2) The invention respectively establishes models between the filter tip ventilation rate, the total ventilation rate and the cigarette paper ventilation rate and the closed/open type suction resistance, and can control the filter tip ventilation rate through the models, thereby laying a foundation for the subsequent quality early warning and control research.
Drawings
FIG. 1 is a fitted line graph of the difference between the ventilation rate and the closed/open draw resistance of a filter;
FIG. 2 is a fitted line graph of the difference between total ventilation and closed/open draw resistance;
figure 3 is a fitted line graph of the difference between cigarette paper ventilation and closed/open draw resistance.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available by purchase.
Example 1
The embodiment analyzes the interaction between the ventilation rate and the open type suction resistance and the closed suction resistance, and comprises the following steps:
step (1), sampling
A machine station: a wrapping workshop, B1 and B8 machines.
Specification: a certain brand in China.
Auxiliary materials: and uniformly using the filter sticks, tipping paper and cigarette paper of the same batch.
Tobacco shred: the same cabinet of tobacco shreds is used in a unified way.
Sampling: when the operation of the wrapping machine is normal, the two machines take samples at the same time.
Step (2), sample detection
After the sample, every board cigarette is torn open and is sealed, the misce bene, and 60 cigarettes are got to every board, divide into two sets of parallel appearance and detect, and the detection index includes: filter tip ventilation rate, total ventilation rate, open type suction resistance and closed type suction resistance.
Measured according to GB/T22838.5-2009. Cigarette paper ventilation = total ventilation-filter ventilation. The results are shown in table 1:
TABLE 1 Filter Ventilation, Total Ventilation, cigarette paper Ventilation, open and closed draw resistance test results
Machine table Open type suction resistance PD Closed suction resistance CPD Closed suction resistance-open suction resistance Filter tip ventilation rate Vent Ventilation rate PVnt of cigarette paper Total ventilation Rate TotV
B1 0.96 1.1 0.14 17.5 7.3 24.8
B1 0.931 1.055 0.124 16.4 6.6 23
B1 0.876 0.997 0.121 17.2 7.3 24.5
B1 0.924 1.055 0.131 17.7 6.8 24.5
B1 0.935 1.078 0.143 18.1 6.6 24.7
B1 0.896 1.054 0.158 20.1 7.1 27.2
B1 0.937 1.077 0.14 18.3 7.7 26
B1 0.942 1.043 0.101 14.1 5.9 20
B1 0.903 1.065 0.162 21.4 7.2 28.6
B1 0.942 1.071 0.129 16.9 8.2 25.1
B1 0.914 1.046 0.132 17.5 6.3 23.8
B1 0.846 1.002 0.156 21.7 6 27.7
B1 0.958 1.09 0.132 17.3 7.9 25.2
B1 0.906 1.042 0.136 18.1 7.4 25.5
B1 0.856 0.999 0.143 20.8 6.3 27.1
B1 0.937 1.062 0.125 17.1 6.9 24
B1 0.987 1.121 0.134 16.3 7 23.3
B1 1.013 1.166 0.153 17.9 9.2 27.1
B1 0.938 1.056 0.118 16.5 6.8 23.3
B1 0.893 1.016 0.123 16.6 6.7 23.3
B1 0.892 1.048 0.156 20.7 6.8 27.5
B1 0.945 1.09 0.145 18.1 7 25.1
B1 0.883 0.993 0.11 15.4 7 22.4
B1 0.942 1.058 0.116 15.1 8.5 23.6
B1 0.919 1.065 0.146 18.9 6.9 25.8
B1 0.906 1.048 0.142 18.5 6.5 25
B1 0.862 0.977 0.115 16.9 6.8 23.7
B1 0.872 1 0.128 17.3 6.3 23.6
B1 0.902 1.058 0.156 19.9 6.2 26.1
B1 0.911 1.046 0.135 18.5 6.1 24.6
B1 0.948 1.098 0.15 18.7 7.8 26.5
B1 0.905 1.035 0.13 17.3 7.3 24.6
B1 0.948 1.071 0.123 16 7.2 23.2
B1 0.892 1.004 0.112 15.3 5.9 21.2
B1 0.915 1.067 0.152 19.5 6.9 26.4
B1 0.866 1.015 0.149 20.2 6.5 26.7
B1 0.905 1.038 0.133 17.7 7.4 25.1
B1 0.957 1.08 0.123 16.1 7.9 24
B1 0.915 1.045 0.13 17.4 5.5 22.9
B1 1.026 1.173 0.147 17 8.3 25.3
B1 0.934 1.075 0.141 18.1 6.3 24.4
B1 0.863 0.965 0.102 14.7 7.4 22.1
B1 0.945 1.077 0.132 16.7 7.4 24.1
B1 0.896 1.016 0.12 16.4 6.5 22.9
B1 0.885 1 0.115 15.3 6.8 22.1
B1 0.892 1.028 0.136 17.7 6.8 24.5
B1 0.976 1.107 0.131 16.4 6.6 23
B1 0.944 1.055 0.111 15 6.7 21.7
B1 0.903 1.051 0.148 19.1 7.2 26.3
B1 0.856 0.993 0.137 19.1 5.4 24.5
B1 0.965 1.094 0.129 16.2 7.9 24.1
B1 0.876 0.981 0.105 15 5.7 20.7
B1 0.927 1.051 0.124 16.5 6.8 23.3
B1 0.961 1.116 0.155 19 7.4 26.4
B1 0.859 1.03 0.171 23 6.3 29.3
B1 0.965 1.155 0.19 22.2 8.8 31
B1 0.906 1.029 0.123 17.1 6 23.1
B1 0.947 1.104 0.157 19.6 7.1 26.7
B1 0.888 1.009 0.121 16.7 6.7 23.4
B1 0.89 1.042 0.152 19.6 6.4 26
B8 0.932 1.032 0.1 13.9 6 19.9
B8 1.015 1.142 0.127 15.2 7.4 22.6
B8 0.885 0.977 0.092 13 5.7 18.7
B8 0.983 1.091 0.108 13.8 6.9 20.7
B8 0.918 1.033 0.115 15.7 7.3 23
B8 0.915 1.026 0.111 15.2 6.4 21.6
B8 0.89 0.993 0.103 14.3 5.8 20.1
B8 0.918 1.016 0.098 13.5 6.2 19.7
B8 0.947 1.043 0.096 13.5 7.7 21.2
B8 0.967 1.078 0.111 14.8 7 21.8
B8 0.983 1.11 0.127 15.7 6.9 22.6
B8 0.97 1.092 0.122 15.5 7.8 23.3
B8 0.964 1.062 0.098 14 6.1 20.1
B8 0.961 1.071 0.11 14.4 7.9 22.3
B8 0.94 1.048 0.108 14.4 6.6 21
B8 0.925 1.033 0.108 14.6 6.6 21.2
B8 0.912 1.026 0.114 14.8 6.4 21.2
B8 0.977 1.088 0.111 14.2 6.1 20.3
B8 0.942 1.035 0.093 12.5 6.1 18.6
B8 0.994 1.129 0.135 15.9 6.8 22.7
B8 0.958 1.054 0.096 12.8 8.4 21.2
B8 0.916 1.026 0.11 15 6.6 21.6
B8 0.965 1.077 0.112 14.9 6.5 21.4
B8 0.958 1.098 0.14 17.6 7.3 24.9
B8 0.919 1.02 0.101 13.9 6.2 20.1
B8 0.886 0.993 0.107 14.4 5.8 20.2
B8 0.94 1.058 0.118 15.3 7 22.3
B8 0.965 1.087 0.122 15.5 7.1 22.6
B8 0.94 1.048 0.108 14.6 6.8 21.4
B8 0.935 1.043 0.108 14.8 7.5 22.3
B8 0.928 1.025 0.097 13.5 6.6 20.1
B8 1.004 1.127 0.123 15.4 6.8 22.2
B8 0.847 0.944 0.097 13.8 5.9 19.7
B8 0.968 1.084 0.116 14.4 7.9 22.3
B8 0.94 1.049 0.109 14.5 6.3 20.8
B8 0.896 1.002 0.106 14.4 5.8 20.2
B8 0.911 1.003 0.092 12.6 6.4 19
B8 0.927 1.028 0.101 13.9 5.2 19.1
B8 0.958 1.075 0.117 15 7 22
B8 0.953 1.052 0.099 13.5 6.8 20.3
B8 0.929 1.042 0.113 15.2 7.5 22.7
B8 0.912 1.025 0.113 15.1 6.1 21.2
B8 0.921 1.032 0.111 14.8 6.5 21.3
B8 0.932 1.025 0.093 12.9 6.3 19.2
B8 1 1.114 0.114 14.4 7.7 22.1
B8 0.938 1.054 0.116 15.3 7.5 22.8
B8 0.927 1.041 0.114 15.2 7.2 22.4
B8 0.941 1.055 0.114 15.3 8.1 23.4
B8 0.941 1.048 0.107 14.5 6.9 21.4
B8 0.954 1.069 0.115 14.6 8.8 23.4
B8 0.957 1.062 0.105 14.3 6.6 20.9
B8 0.989 1.11 0.121 14.7 7.7 22.4
B8 1 1.123 0.123 15.1 6.6 21.7
B8 0.981 1.075 0.094 12.9 7.1 20
B8 0.854 0.967 0.113 15.6 6.8 22.4
B8 0.964 1.08 0.116 14.9 6.2 21.1
B8 0.877 0.968 0.091 12.9 5.4 18.3
B8 0.942 1.056 0.114 14.8 6.8 21.6
B8 0.983 1.105 0.122 15.6 6.4 22
B8 0.931 1.068 0.137 17.9 6.9 24.8
Step (3) establishing a model
The difference between the closed type suction resistance and the open type suction resistance is used as a variable, the ventilation rate is used as a dependent variable, and the correlation between the closed type suction resistance and the open type suction resistance is analyzed, as shown in figures 1 to 3. Wherein, the total ventilation rate TotV and the open type suction resistance and the closed suction resistance satisfy the following relations:
TotV=8.229+120.7*（CPD -PD）。
the filter ventilation rate Vent and the open type suction resistance and the closed suction resistance satisfy the following relations:
Vent=2.713+109.7*（CPD -PD）。
the ventilation rate PVnt of the cigarette paper and the open type suction resistance and the closed suction resistance satisfy the following relationship:
PVnt=5.515+10.95*（CPD -PD）。
as can be seen from fig. 1, 2 and 3, the filter ventilation rate and the total ventilation rate have obvious linear dependence on the difference between closed/open type suction resistance and the cigarette paper ventilation rate has no obvious linear dependence, and considering that the filter ventilation rate has absolute proportion in the total ventilation rate, the filter ventilation rate can be verified to be the main factor causing the change of the suction resistance, and the suction resistance is not the main factor causing the change of the filter ventilation rate.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (4)

1. A ventilation rate control method based on the difference between open suction resistance and closed suction resistance is characterized in that: the ventilation rate and the open type suction resistance and the closed suction resistance satisfy the following relationship:
Y=a+b*（CPD -PD）；
wherein Y is the ventilation rate; a is a first constant; b is a second constant; PD is open draw resistance; CPD is a closed draw resistance;
the ventilation rate comprises the total ventilation rate, the filter tip ventilation rate and the cigarette paper ventilation rate;
the total ventilation rate, filter ventilation rate and cigarette paper ventilation rate are controlled by controlling the difference between the open draw resistance and the closed draw resistance.
2. The ventilation rate control method according to claim 1, characterized in that: the total ventilation rate TotV and the open suction resistance and the closed suction resistance satisfy the following relationship:
TotV=8.229+120.7*（CPD -PD）。
3. the ventilation rate control method according to claim 1, characterized in that: the filter ventilation rate Vent and the open type suction resistance and the closed suction resistance satisfy the following relations:
Vent=2.713+109.7*（CPD -PD）。
4. the ventilation rate control method according to claim 1, characterized in that: the ventilation rate PVnt of the cigarette paper and the open type suction resistance and the closed suction resistance satisfy the following relationship:
PVnt=5.515+10.95*（CPD -PD）。
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