CN213239870U - Standard rod capable of being used for calibrating total ventilation rate - Google Patents
Standard rod capable of being used for calibrating total ventilation rate Download PDFInfo
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- CN213239870U CN213239870U CN202022267398.9U CN202022267398U CN213239870U CN 213239870 U CN213239870 U CN 213239870U CN 202022267398 U CN202022267398 U CN 202022267398U CN 213239870 U CN213239870 U CN 213239870U
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Abstract
The utility model provides a standard rod for calibrating total ventilation rate, which is provided with capillaries along the axial direction and consists of a cigarette paper section and a filter tip section, wherein the radial outer surface of the cigarette paper section is provided with a plurality of cigarette paper ventilation holes which are communicated with the corresponding capillaries; be equipped with a plurality of filter tip ventilation holes on the radial surface of filter tip section, filter tip ventilation hole and its capillary intercommunication that corresponds. Therefore, when the air flow passes through the standard rod, the total air flow is divided into three parts of end face air flow, filter tip section air flow and cigarette paper section air flow, the number of the capillary tubes which are axially distributed on the standard rod and the number of the ventilation holes which are communicated on the radial outer surface are changed, the air flows of the three parts can be distributed according to different proportions, and after the air flow distribution proportion is assigned, the verification or the calibration and other works can be carried out on the indexes such as the filter tip ventilation rate, the cigarette paper ventilation rate, the total ventilation rate and the like of the cigarette ventilation rate detection equipment.
Description
Technical Field
The utility model relates to a cigarette physical index detection area, in particular to can be used to calibrate cigarette ventilation rate check out test set's total ventilation index's standard stick.
Background
The ventilation rate directly influences the release amount of tar and harmful components in the smoke of the cigarette, and has close relation with the release amount of main stream smoke and the quality of sensory quality. The ventilation rate is an important intrinsic technological index of the low-tar cigarette product and an important parameter of the physical performance of the cigarette. The tobacco industry generally adopts ventilation rate detection equipment to detect the ventilation rate of cigarettes. The ventilation rate detection equipment needs to use a ventilation rate standard component for calibration, verification and verification, and the ventilation rate standard component can directly influence the measurement result of the cigarette ventilation rate.
The ventilation rate includes the indexes of filter ventilation, paper ventilation, total ventilation and the like. At present, the ventilation rate standard component only has radial trompil in the region at cigarette filter place, and total air current through the standard component is divided into terminal surface air current, two parts of filter tip section air current, can only calibrate and verify filter tip ventilation test section, does not possess the calibration function of paper ventilation test, therefore also can not calibrate to total ventilation test, and the standard component that also does not use calibrates and verifies total ventilation test.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is necessary to provide a standard bar for calibrating the total ventilation rate, which is used to calibrate the total ventilation index of the cigarette physical index detection device, so as to solve the above-mentioned problems.
The utility model provides a technical scheme as follows:
a standard rod for calibrating total ventilation rate is provided, which is provided with capillaries along the axial direction and consists of a cigarette paper section and a filter tip section, wherein the radial outer surface of the cigarette paper section is provided with a plurality of cigarette paper ventilation holes which are communicated with the corresponding capillaries; be equipped with a plurality of filter tip ventilation holes on the radial surface of filter tip section, filter tip ventilation hole and its capillary intercommunication that corresponds.
Preferably, the capillary tube communicating with the filter vent and the capillary tube communicating with the cigarette paper vent are not the same capillary tube. That is, the same capillary tube can only communicate with the cigarette paper vent hole or only with the filter vent hole, but not with the cigarette paper vent hole and the filter vent hole simultaneously.
Herein, "cigarette paper segment" refers to the area of the total ventilation standard rod used to calibrate the cigarette paper ventilation sensor during the ventilation test, and "filter segment" refers to the area of the total ventilation standard rod used to calibrate the filter ventilation sensor during the ventilation test.
Based on the above, the number of the capillaries is 1-20. Preferably, the number of the capillaries is 1-10. A plurality of the capillaries are uniformly or randomly distributed in the axial direction of the standard rod. Preferably, a plurality of the capillaries are uniformly distributed in the axial direction of the standard rod.
Based on the above, the plurality of cigarette paper ventilation holes are respectively located in the same radial plane or in a plurality of radial planes of the cigarette paper section. Wherein, be located a plurality of cigarette paper ventilation holes in the same radial plane of cigarette paper section correspond the capillary adjacent setting or the interval setting of intercommunication, promptly, a plurality of cigarette paper ventilation holes that are located same radial plane can adjacent setting, also can the interval setting. Similarly, be located cigarette paper ventilation hole in a plurality of radial planes of cigarette paper section also corresponds the capillary adjacent setting or the interval setting of intercommunication, promptly, a plurality of cigarette paper ventilation holes all do not lie in same radial plane, just the capillary of cigarette paper ventilation hole intercommunication can adjacent setting, also can the interval setting.
In view of the above, a plurality of the filter ventilation holes may be located in the same radial plane or in a plurality of radial planes of the filter segment. Wherein, be located a plurality of filter tip ventilation holes in the same radial plane of filter segment correspond the adjacent setting of capillary or the interval setting of intercommunication, promptly, a plurality of filter tip ventilation holes that are located same radial plane can adjacent setting, also can the interval setting. Similarly, be located filter ventilation hole in a plurality of radial planes of filter section also corresponds the adjacent setting of capillary or the interval setting of intercommunication, promptly, a plurality of filter ventilation holes all do not lie in same radial plane, just the capillary of filter ventilation hole intercommunication can adjacent setting, also can the interval setting.
Based on the above, the length of the standard rod is L, and the distance from the ventilation holes of the cigarette paper to the end surface of the standard rod is L1And L is1 >0.1L. The term "standard rod end face" as used herein refers to an end face of the rolled smoking paper segment into which air flows.
Based on the above, the distance from the filter tip vent hole to the end face of the standard rod is L2And L is1 < < L2 <0.9 L。
Based on the above, the inner diameters of the cigarette paper vent hole and the filter tip vent hole are respectively equal to the inner diameter of the capillary tube.
Based on the above, the number of cigarette paper ventilation hole with the filter tip ventilation hole is 1 ~ 10 respectively. Preferably, the cigarette paper vents and the filter plug vents are 1, 2 or 3, respectively.
Based on the above, the standard rod is a quartz glass standard rod or a ceramic standard rod.
Based on the above, the length of the standard rod is 64 + -10 mm, 84 + -10 mm, 100 + -10 mm or 120 + -10 mm.
The utility model provides a can be used for total ventilation rate calibration's standard stick is applicable to calibration cigarette paper ventilation rate check out test set, and it has the capillary and comprises cigarette paper section and filter tip section to distribute along its axial, wherein, be equipped with a plurality of cigarette paper ventilation holes on the radial surface of cigarette paper section, the cigarette paper ventilation hole communicates with its corresponding capillary; the filter section is provided with a plurality of filter vent holes on the radial outer surface, the filter vent holes are communicated with corresponding capillary tubes, so when the ventilation rate test airflow is sucked from one end of the standard rod, the airflow is distributed among the cigarette paper section end surface of the capillary tubes, the cigarette paper vent holes and the filter vent holes, specifically, a part of the airflow flows in through the standard rod end surface, a part of the airflow flows in through the cigarette paper vent holes, the rest of the airflow flows in through the filter vent holes, and the proportion of the three parts of the airflow is fixed; the cigarette paper ventilation holes are positioned in the cigarette paper section and can simulate cigarette paper ventilation, and the filter tip ventilation holes are positioned in the filter tip section and can simulate filter tip ventilation; therefore, a set of air flow distribution ratio values are given to the standard rod, and the work of calibrating, verifying, checking and the like of indexes such as cigarette paper ventilation rate, filter tip ventilation rate, total ventilation rate and the like can be provided at the same time.
The capillary tubes which are axially distributed in the standard rod and can be used for calibrating the total ventilation rate can provide the suction resistance similar to cigarettes under the standard ventilation rate test condition through the combination of the quantity and the distribution of the capillary tubes, so that the calibration and verification effects of the standard rod are closer to the actual test condition, the standard rod can be suitable for cigarette ventilation rate detection equipment of different brands and different models, and the standard rod has better universality.
The utility model provides a can be used to standard stick of total ventilation rate calibration, quantity and the distribution state of cigarette paper ventilation hole and filter tip ventilation hole wherein and the quantity and the distribution state cooperation of capillary, adjustment the ventilation value of standard stick distributes to do according to the particular case of cigarette paper ventilation hole, filter tip ventilation hole and capillary the standard stick assignment to utilize indexes such as standard stick calibration cigarette physical index check out test set's of assignment paper ventilation rate, filter tip ventilation rate, total ventilation rate.
The standard rod used for calibrating the total ventilation rate is a quartz glass standard rod or a ceramic standard rod, and quartz glass and ceramic are not easily influenced by the environmental temperature, so that the quartz glass standard rod or the ceramic standard rod can reduce the influence of the environmental temperature change on the test result as much as possible, is not easy to age and denature, and prolongs the service life of the standard rod.
Since the capillary in the standard rod for total ventilation calibration leads the air flow from one end to the other end, the length of the standard rod cannot be too short because the laminar flow state of the air flow is maintained when the air flow passes through the capillary in order to ensure the accuracy of the test; if the length of the standard bar is too long, the standard bar is inconvenient to use in ventilation rate detection equipment; and the length of the gauge bar is related to the diameter of the capillary therein. Therefore, the size of the standard rod is consistent with that of the existing cigarette, so that the calibration and verification of the total ventilation rate standard rod on the ventilation rate detection equipment can be closer to the ventilation rate test state of the cigarette, the standard rod can be suitable for the cigarette ventilation rate detection equipment of different brands and different models, and the standard rod has good universality and applicability.
In conclusion, the standard rod for calibrating the total ventilation rate provided by the utility model is an airflow distribution standard part capable of calibrating the total ventilation index in the cigarette ventilation rate detection equipment, the cigarette paper section and the filter tip section are respectively provided with the vent holes, so that when the airflow passes through the standard rod, the total airflow is divided into three parts, namely end surface airflow, filter tip section airflow and cigarette paper section airflow, by varying the number of axially distributed capillaries of the standard rod in communication with vents in the radially outer surface, the airflow of the three parts can be distributed according to different proportions, the ventilation state of the cigarette paper, the ventilation state of the filter tip and the total ventilation state can be simulated, after the air flow distribution proportion is assigned, verification or calibration and other works can be carried out on indexes such as filter tip ventilation, cigarette paper ventilation and total ventilation of the cigarette ventilation rate detection equipment at the same time.
Drawings
Fig. 1 is a schematic structural diagram and an airflow distribution diagram of a standard rod that can be used for calibrating a total ventilation rate according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a standard rod that can be used for calibrating the total ventilation rate according to the second embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a standard rod that can be used for calibrating the total ventilation rate according to a third embodiment of the present invention.
Wherein, in each figure: 1. cigarette paper section, 2, capillary, 3, cigarette paper ventilation hole, 4, cigarette paper section terminal surface, 5, filter tip section, 6, filter tip ventilation hole, 7, filter tip section terminal surface.
Detailed Description
The technical solution of the present invention will be described in further detail through the following embodiments.
Example one
Referring to fig. 1, the present embodiment provides a standard rod for calibrating total ventilation rate, the length of the standard rod is 84 mm, 10 capillaries 2 are distributed along the axial direction of the standard rod, the diameter of each capillary 2 is about 0.55mm, and the 10 capillaries 2 are distributed approximately uniformly in the radial direction. The standard rod is divided into a cigarette paper segment 1 and a filter tip segment 5. The cigarette paper section is characterized in that 1 cigarette paper vent hole 3 is formed in the radial outer surface of the cigarette paper section 1, the cigarette paper vent hole 3 is communicated with 1 capillary tube 2 corresponding to the cigarette paper vent hole 3, and the distance between the cigarette paper vent hole 3 and the end face 4 of the cigarette paper section of the standard rod is 38 mm. Be equipped with 1 filter ventilation hole 6 on the radial surface of filter segment 5, this filter ventilation hole 6 communicates with 1 capillary 2 that it corresponds, 6 distances in this filter ventilation hole the distance of cigarette paper section terminal surface 4 is 73 mm, just cigarette paper ventilation hole 3 with filter ventilation hole 6 not with same root capillary intercommunication. The cigarette paper vents 3 and the filter vents 6 both have an inner diameter that approximates the inner diameter of the capillary tubes 2.
When the standard rod is placed in a test cavity of the ventilation rate detection equipment, the standard rod is divided into three sections by a sealing element in the test cavity for sealing. When the test is started and the air flow is drawn from the end face 7 of the filter segment of the standard rod, the air flow consists of three parts, namely end face air flow, cigarette paper segment air flow and filter segment air flow. Specifically, the air flow entering the standard rod is distributed among the cigarette paper section end face 4, the cigarette paper vent holes 3 and the filter plug vent holes 6, wherein the end face air flow is respectively flowed in from the cigarette paper section end face 4 through 8 capillary tubes 2, the cigarette paper section air flow is flowed in from 1 cigarette paper vent hole 3, the filter plug section air flow is flowed in from 1 filter plug vent hole 6, and three air flows finally flow out from the filter plug section end face 7 of the standard rod. At this time, the ratio of the end face air flow, the filter section air flow and the cigarette paper section air flow is about 7:2: 1. And the ventilation rate detection equipment measures the filter tip section airflow and the cigarette paper section airflow to obtain the filter tip ventilation rate, the cigarette paper ventilation rate and the total ventilation rate.
Example two
Referring to fig. 2, the present embodiment provides a standard stick for calibrating total ventilation rate, which is substantially the same as the standard stick for calibrating total ventilation rate provided in the first embodiment, and the main differences are: the length of the standard rod provided by the embodiment is 100 mm, 2 cigarette paper vent holes 3 are formed in the radial outer surface of the cigarette paper section 1, each cigarette paper vent hole 3 is communicated with the corresponding capillary tube 2, and the 2 vent holes 3 are located in the same radial plane of the cigarette paper section 1 and are 45 mm away from the end face 4 of the cigarette paper section of the standard rod; the radial outer surface of the filter section 5 is provided with 2 filter vent holes 6, each filter vent hole 6 is communicated with the corresponding capillary tube 2, and the 2 filter vent holes 6 are positioned in the same radial plane of the filter section 5 and have a distance of 87 mm from the end surface 4 of the cigarette paper section; the same capillary tube can only communicate with the cigarette paper vents 3 or can only communicate with the filter vents 6.
When the standard stick provided by the embodiment is placed in the test chamber of the ventilation rate testing device, the airflow distribution is basically the same as that of the standard stick provided by the first embodiment, and the main difference is that: when the test begins, when the air current is sucked from one end of the standard rod, the air current is composed of three parts of end face air current, cigarette paper section air current and filter tip section air current, wherein the end face air current flows in from the cigarette paper section end face 4 by 6 capillary tubes 2 respectively, the cigarette paper section air current flows in from the cigarette paper ventilation holes 3 on the 2 capillary tubes, the filter tip section air current flows in from the filter tip ventilation holes 6 on the 2 capillary tubes, and the three parts of air current finally flows out from the filter tip section end face 7 of the standard rod. At this time, the ratio of the end face air flow, the filter section air flow and the cigarette paper section air flow is about 4:4: 2. And the ventilation rate detection equipment measures the filter tip section airflow and the cigarette paper section airflow to obtain the filter tip ventilation rate, the cigarette paper ventilation rate and the total ventilation rate.
Example 3
Referring to fig. 3, the present embodiment provides a standard stick for calibrating total ventilation rate, which is substantially the same as the standard stick for calibrating total ventilation rate provided in the first embodiment, and the main differences are: the length of the standard rod provided by the embodiment is 120 mm, 3 cigarette paper vent holes 3 are formed in the radial outer surface of the cigarette paper section 1, each cigarette paper vent hole 3 is communicated with the corresponding capillary tube 2, and the 3 vent holes 3 are located in the same radial plane of the cigarette paper section 1 and are 54 mm away from the end face 4 of the cigarette paper section of the standard rod; the radial outer surface of the filter section 5 is provided with 3 filter vent holes 6, each filter vent hole 6 is communicated with the corresponding capillary tube 2, and the 3 filter vent holes 6 are positioned in the same radial plane of the filter section 5 and are 105 mm away from the end surface 4 of the cigarette paper section; the same capillary tube can only communicate with the cigarette paper vents 3 or can only communicate with the filter vents 6.
When the standard stick provided by the embodiment is placed in the test chamber of the ventilation rate testing device, the airflow distribution is basically the same as that of the standard stick provided by the first embodiment, and the main difference is that: when the test begins, when the air current is sucked from one end of the standard rod, the air current is composed of three parts of end face air current, cigarette paper section air current and filter tip section air current, wherein the end face air current flows in from the cigarette paper section end face 4 by 4 capillary tubes 2 respectively, the cigarette paper section air current flows in from the cigarette paper ventilation holes 3 on 3 capillary tubes, the filter tip section air current flows in from the filter tip ventilation holes 6 on 3 capillary tubes, and the three parts of air current finally flows out from the filter tip section end face 7 of the standard rod. At this time, the ratio of the end face air flow, the filter section air flow and the cigarette paper section air flow is about 2:7: 1. And the ventilation rate detection equipment measures the filter tip section airflow and the cigarette paper section airflow to obtain the filter tip ventilation rate, the cigarette paper ventilation rate and the total ventilation rate.
It should be noted that: in other embodiments, 2 of the cigarette paper vents 3 of embodiment 2 may be located in different radial planes of the cigarette paper segment, 2 of the filter vents 6 of embodiment 2 may be located in different radial planes of the filter segment, 3 of the cigarette paper vents 3 of embodiment 3 may also be located in different radial planes of the cigarette paper segment, and 3 of the filter vents 6 of embodiment 3 may be located in different radial planes of the filter segment.
Therefore, utilize the embodiment of the utility model provides a can be used to total standard stick of ventilation rate calibration to according to the air current distribution pair its assignment under ventilation rate standard test condition, utilize through the assignment standard stick can realize developing work such as calibration, verification to index tests such as cigarette physical index check out test set's filter tip ventilation rate, paper ventilation rate, total ventilation rate simultaneously.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (10)
1. A standard rod usable for calibration of total ventilation rate, having capillaries distributed along its axial direction and consisting of a rolled-up paper segment and a filter segment, characterized in that: a plurality of cigarette paper vent holes are formed in the radial outer surface of the cigarette paper section and communicated with corresponding capillary tubes; be equipped with a plurality of filter tip ventilation holes on the radial surface of filter tip section, filter tip ventilation hole and its capillary intercommunication that corresponds.
2. The master rod of claim 1, wherein: the number of the capillaries is 1-20.
3. The master rod of claim 2, wherein: the cigarette paper ventilation holes are respectively positioned in the same radial plane or a plurality of radial planes of the cigarette paper section.
4. A standard bar according to claim 2 or 3, wherein: the plurality of filter ventilation holes are located in the same radial plane or in a plurality of radial planes of the filter segment, respectively.
5. The master rod of claim 4, wherein: the length of the standard rod is L, and the distance between the cigarette paper vent hole and the end face of the standard rod is L1And L is1 > 0.1 L。
6. The master rod of claim 5, wherein: the distance between the filter tip ventilation hole and the end face of the standard rod is L2And L is1 < L2 < 0.9 L。
7. The master rod of claim 6, wherein: the inner diameters of the cigarette paper vent hole and the filter tip vent hole are respectively equal to the inner diameter of the capillary tube.
8. The master rod of claim 7, wherein: the number of the cigarette paper ventilation holes and the number of the filter tip ventilation holes are respectively 1-10.
9. The master rod of claim 1, wherein: the standard rod is a quartz glass standard rod or a ceramic standard rod.
10. The master rod of claim 1, wherein: the length of the standard rod is 64 +/-10 mm, 84 +/-10 mm, 100 +/-10 mm or 120 +/-10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022267398.9U CN213239870U (en) | 2020-10-13 | 2020-10-13 | Standard rod capable of being used for calibrating total ventilation rate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022267398.9U CN213239870U (en) | 2020-10-13 | 2020-10-13 | Standard rod capable of being used for calibrating total ventilation rate |
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| Publication Number | Publication Date |
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| CN213239870U true CN213239870U (en) | 2021-05-18 |
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| CN202022267398.9U Active CN213239870U (en) | 2020-10-13 | 2020-10-13 | Standard rod capable of being used for calibrating total ventilation rate |
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