CN212994378U - Heating cigarette using Venturi type hollow filter stick - Google Patents
Heating cigarette using Venturi type hollow filter stick Download PDFInfo
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- CN212994378U CN212994378U CN202020593024.3U CN202020593024U CN212994378U CN 212994378 U CN212994378 U CN 212994378U CN 202020593024 U CN202020593024 U CN 202020593024U CN 212994378 U CN212994378 U CN 212994378U
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Abstract
The utility model relates to an use heating cigarette of venturi type cavity filter rod, the heating cigarette comprises tobacco material and the cavity filter rod that has the venturi structure, and in the axial of cavity filter rod was followed, the structure of well cavity presented cavity diameter big, little periodic continuous variation, formed the series-connected combination of the thick of a set of series connection, thin cavity. When smoke generated by high-temperature heating of tobacco materials passes through the cavity, the flow speed of smoke fluid is changed due to the change of the cavity structure, the fluid state is forcibly changed from laminar flow to turbulent flow, the heat conduction efficiency is improved, and the heat conduction cooling effect is better; meanwhile, when the smoke aerosol passes through the Venturi type hollow filter stick, the aerosol is collided, condensed and released heat due to the fact that the diameter of the inner cavity part is changed in a continuous and alternate mode, and the cooling effect is further enhanced. The cigarette heated by the Venturi type hollow filter stick has the advantages of sufficient smoke amount, moderate inlet temperature, good smoking experience, simple processing technology and small product control difficulty in terms of actual production.
Description
Technical Field
The utility model belongs to the technical field of tobacco, especially indicate a heating cigarette who uses venturi type cavity filter rod.
Background
The smoke of the heated cigarette is in an aerosol state in the filter stick, aerosol particles are tiny liquid drops, and the smoke temperature has direct influence on the particle size and the components of the aerosol, so that the quantity of harmful components in the smoke and the sensory quality of the cigarette are influenced. The tobacco material in a heated cigarette is typically heated in a heating device at 250-350 ℃ under conditions that provide for sufficient release of nicotine and a portion of the aromatic material. But the cigarette length of heating cigarette is short, and the cigarette props up and is in the utensil high temperature and surrounds, and heat exchange efficiency is poor, and entry end flue gas temperature is too high, and burning sensation and irritability obviously rise, and consumer's smoking experience is relatively poor. The reduction of flue gas temperature is the technological direction of continuous improvement of such products.
For heated cigarettes, the amount of smoke produced during smoking is directly related to the resistance of the filter rod to draw and the efficiency of the filter. By combining the product characteristics of the heated cigarette, when the smoking resistance is large and the filtering efficiency is high, the smoke aerosol is absorbed by the filter stick more, the smoke amount is small, and the experience and satisfaction of a smoker are poor; on the contrary, when the suction resistance is small and the filtering efficiency is low, the smoke amount is large, and the experience and satisfaction of the smoker are good. Reducing the draw resistance is also a continuing improvement in the art of heating cigarette products.
In addition, the heating cigarette usually adopts a four-section or five-section composite structure, the production process is complex, and the product quality is difficult to control.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an use heating cigarette of venturi type cavity filter rod to solve that heating cigarette production technology is complicated, the article accuse degree of difficulty is big, mainstream flue gas entry end temperature is higher, smog volume is little, the relatively poor scheduling problem of suction experience.
The utility model discloses a realize through following technical scheme:
a heating cigarette using a Venturi type hollow filter stick is composed of a tobacco substance and a hollow filter stick with a Venturi tube structure, and the two parts are twisted and jointed into an integral structure through tipping paper.
The length of the heated cigarette is 40-60 mm.
The length of the hollow filter stick is 25-45 mm.
The outer part of the hollow filter stick is of a smooth cylindrical structure, and an axial hollow cavity is arranged in the hollow filter stick;
the diameters of the hollow cavities are not completely the same in the axial direction of the hollow filter stick, and the structures of the hollow cavities show that the diameters of the cavities are periodically and continuously changed, so that a group of series-connected thick cavities and series-connected thin cavities are formed.
The hardness of the hollow filter stick is more than 60% of that of a solid filter stick made of the same material and having the same outer diameter.
The hollow cavity is an axial through hollow cavity or an axial non-through hollow cavity.
The hollow cavity is a straight-through cavity structure similar to a Venturi shape, the hollow cavity is formed by connecting a cylindrical pipe and a curved pipe, and the curved pipe is composed of a curved pipe with gradually increased diameter and a curved pipe with gradually decreased diameter; the curved line pipe that the diameter gradually increased and the curved line pipe that the diameter gradually reduced are arc pipe or conical tube.
The utility model has the advantages that:
the heating cigarette using the Venturi type hollow filter stick adopts a binary or ternary composite structure, and has the advantages of simple structure, simple production process and small product control difficulty. When smoke generated after the tobacco material is heated at high temperature passes through the cavity, the flow rate of the smoke is changed due to the change of the cavity structure, the fluid state of the smoke is forcibly changed from laminar flow to turbulent flow, the heat conduction efficiency is improved, and the heat conduction cooling effect is better; meanwhile, when the aerosol in the smoke flows through the Venturi type hollow filter stick, the aerosol in the smoke undergoes accelerated expansion in the fine cavity due to the fact that the diameter of the inner cavity part is continuously and alternately changed, the aerosol is decelerated and pressurized in the coarse cavity, the aerosol is collided and condensed in the pressurizing stage, phase change heat release occurs, and the cooling effect is further enhanced; because the middle of the filter stick is of a straight-through structure, the filter stick also has lower suction resistance. The cigarette heated by the Venturi type hollow filter stick has moderate inlet temperature, sufficient smoke amount and good smoking experience.
The utility model discloses a reasonable in design uses venturi type cavity filter rod can form binary or ternary complex heating cigarette, and simple structure is unique, and the flue gas cooling effect is obvious. The cigarette is heated by using the Venturi type hollow filter stick, so that the smoke temperature is reduced, the smoke quantity of the cigarette can be ensured, and the experience of a smoker is met; provides a new solution for improving the quality of cigarettes and developing novel tobacco products.
Drawings
FIG. 1 is a longitudinal cross-sectional view of a heated cigarette of the present invention;
FIG. 2 is a longitudinal cross-sectional view of the non-through hollow cavity of the present invention;
FIG. 3 is a longitudinal cross-sectional view of another embodiment of the heated cigarette of the present invention;
FIG. 4 is a schematic longitudinal sectional view of the Venturi type hollow filter stick of the present invention;
description of the reference numerals
The cigarette comprises a tobacco part 1, a hollow filter stick 2, a hollow cavity 3, a cylindrical tube 31, an arc tube 32 with gradually increased diameter, an arc tube 33 with gradually decreased diameter, tipping paper 4 and a non-through hollow cavity 5.
Detailed Description
The technical solutions of the present invention are described in detail below by way of examples, which are only exemplary and can be used only for explaining and explaining the technical solutions of the present invention, but should not be construed as limiting the technical solutions of the present invention.
As shown in fig. 1, in order to use the heating cigarette of venturi tube type hollow filter stick of the present invention, including the tobacco portion 1 prepared by tobacco material, in the technical solution of the present application, the material of the tobacco portion does not belong to the protection scope of the present application, therefore, all the tobacco materials that can be applied to the preparation of heating cigarette can be applied to the tobacco portion of the present application, and the detailed description is not given here.
The hollow filter stick 2 with the Venturi tube structure is a hollow filter stick prepared by a specific technology, the filter stick is designed through a hollow cavity 3, high-temperature smoke of a heated cigarette is cooled to a proper temperature in an accelerated manner through the change of a gas state, the tobacco part and the hollow filter stick are twisted and connected into an integrated structure through tipping paper, and the complete heated cigarette is prepared. Typically, the heated cigarette has a length of 40-60mm, with the hollow filter rod having a length of 25-45 mm.
In the longitudinal cross-sectional view of the heated cigarette shown in fig. 2, the difference from fig. 1 is only that the hollow cavity is different, specifically, fig. 2, wherein the hollow cavity is a longitudinal non-through hollow cavity 5 structure, when the structure is adopted, the hollow filter stick is made of loose porous substances, and the design of the structure ensures that the hollow cavity is not directly communicated with the oral cavity, reduces the direct impact of mainstream smoke on the oral cavity, and improves the smoking comfort.
Fig. 3 is a schematic longitudinal sectional view of another embodiment of a heated cigarette, which can be understood from the figure and is different from fig. 1 in the structure of a hollow cavity.
As shown in fig. 4, which is a schematic longitudinal sectional view of the hollow filter stick, wherein: the enlargement and contraction parts of the hollow cavity are in arc symmetrical structures, L1 is more than or equal to L2 is more than or equal to 60 mm; the outside is a hollow filter stick body formed by curing cellulose diacetate tows by a plasticizer; the middle blank part is a hollow cavity with a Venturi shape, the hollow cavity is a straight-through cavity structure with a similar Venturi shape, the hollow cavity is formed by connecting a cylindrical pipe 31 and a curved pipe, and the curved pipe is composed of an arc pipe 32 with gradually increased diameter and an arc pipe 33 with gradually decreased diameter. When smoke passes through the cavity, the flow speed of smoke fluid is changed due to the change of the cavity structure, the fluid state is forced to change from laminar flow to turbulent flow, the heat conduction efficiency is improved, and the smoke heat conduction cooling device has a good heat conduction cooling effect; meanwhile, when the aerosol in the smoke passes through the Venturi type hollow filter stick, the aerosol in the smoke undergoes accelerated expansion in the fine cavity due to the fact that the diameter of the inner cavity part is continuously and alternately changed, the aerosol decelerates and boosts pressure in the coarse cavity, the aerosol collides and condenses to release heat in the boosting stage, and the cooling effect is further enhanced; because the middle of the filter stick is of a straight-through structure, the filter stick also has lower suction resistance. When the filter stick is used for heating cigarettes, the atomization amount of smoke can be ensured while the temperature is reduced, and the experience of smokers can be met.
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 the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (7)
1. A heated cigarette using a Venturi-type hollow filter stick is characterized in that the heated cigarette is composed of a tobacco substance and a hollow filter stick with a Venturi structure, and the two parts are twisted and jointed into an integral structure through a tipping paper.
2. A heated cigarette using a venturi-type hollow filter rod according to claim 1 wherein the heated cigarette has a length of 40mm to 60 mm.
3. The heated cigarette using a venturi-type hollow filter rod according to claim 1, wherein the length of the hollow filter rod is 25mm to 45 mm.
4. The heated cigarette using a venturi-type hollow filter rod according to claim 1, wherein the hollow filter rod is of a smooth cylindrical structure on the outside and is provided with an axially hollow cavity on the inside; the diameters of the hollow cavities are not completely the same in the axial direction of the hollow filter stick, and the structures of the hollow cavities show that the diameters of the cavities are periodically and continuously changed, so that a group of series-connected thick cavities and series-connected thin cavities are formed.
5. The heated cigarette using a venturi-type hollow filter according to claim 1, wherein the hardness of the hollow filter is 60% or more of the hardness of a solid filter of the same material and the same outer diameter.
6. The heated cigarette using a venturi-type hollow filter rod according to claim 4, wherein the hollow cavities are axially through hollow cavities or axially non-through hollow cavities.
7. The heated cigarette using a venturi-type hollow filter rod according to claim 6, wherein the hollow cavity is a straight-through cavity structure having a venturi-like shape, the hollow cavity is formed by connecting a cylindrical tube and a curved tube, and the curved tube is formed by a curved tube having a gradually increasing diameter and a curved tube having a gradually decreasing diameter; the curve pipe with the diameter gradually increasing and the curve pipe with the diameter gradually decreasing are both arc pipes or conical pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020593024.3U CN212994378U (en) | 2020-04-20 | 2020-04-20 | Heating cigarette using Venturi type hollow filter stick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020593024.3U CN212994378U (en) | 2020-04-20 | 2020-04-20 | Heating cigarette using Venturi type hollow filter stick |
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| Publication Number | Publication Date |
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| CN212994378U true CN212994378U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020593024.3U Active CN212994378U (en) | 2020-04-20 | 2020-04-20 | Heating cigarette using Venturi type hollow filter stick |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111387543A (en) * | 2020-04-20 | 2020-07-10 | 河南中烟工业有限责任公司 | Heating cigarette using Venturi type hollow filter stick |
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2020
- 2020-04-20 CN CN202020593024.3U patent/CN212994378U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111387543A (en) * | 2020-04-20 | 2020-07-10 | 河南中烟工业有限责任公司 | Heating cigarette using Venturi type hollow filter stick |
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