WO2022133982A1 - 一种侧壁打孔的加热烟草制品 - Google Patents

一种侧壁打孔的加热烟草制品 Download PDF

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Publication number
WO2022133982A1
WO2022133982A1 PCT/CN2020/139302 CN2020139302W WO2022133982A1 WO 2022133982 A1 WO2022133982 A1 WO 2022133982A1 CN 2020139302 W CN2020139302 W CN 2020139302W WO 2022133982 A1 WO2022133982 A1 WO 2022133982A1
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Prior art keywords
tobacco
section
tobacco product
heated
hole
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PCT/CN2020/139302
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English (en)
French (fr)
Inventor
李斌
王爽
张柯
张明建
黄锋
付丽丽
张齐
邓楠
Original Assignee
中国烟草总公司郑州烟草研究院
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Application filed by 中国烟草总公司郑州烟草研究院 filed Critical 中国烟草总公司郑州烟草研究院
Priority to EP20966548.8A priority Critical patent/EP4268628A1/en
Priority to JP2023538948A priority patent/JP2024506126A/ja
Priority to US18/259,263 priority patent/US20240049771A1/en
Priority to CA3202972A priority patent/CA3202972A1/en
Priority to KR1020237024703A priority patent/KR20230128036A/ko
Priority to PCT/CN2020/139302 priority patent/WO2022133982A1/zh
Priority to MX2023007485A priority patent/MX2023007485A/es
Publication of WO2022133982A1 publication Critical patent/WO2022133982A1/zh

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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers
    • A24D1/027—Cigars; Cigarettes with special covers with ventilating means, e.g. perforations

Definitions

  • the invention relates to the field of cigarette product manufacturing, in particular to a heated tobacco product with perforated sidewalls, which belongs to the category of heat-not-burn cigarettes.
  • the vast majority of electric heating cigarettes use air as the carrier of the smoke.
  • the heating temperature applied is usually low, generally not exceeding 300 °C.
  • the harmful components of electric heating cigarettes The release amount is reduced, but it is difficult to completely release the essential components of tobacco, and the amount of smoke is insufficient, so this type of cigarette is more difficult to be accepted by traditional smokers.
  • an airtight cigarette structure or an airtight heating device structure is adopted (Chinese Patent Nos. 201911021676.8 and 201911021823.1 previously applied by the applicant in this case), the tobacco section of the cigarette is isolated from the air, and fresh smoke is formed to effect the atmosphere of the airtight tobacco part.
  • the present invention generates a driving force for active smoke migration through specific structural design, so as to utilize active smoke migration and convection to form mainstream smoke, and proposes a heated tobacco product with perforated sidewalls.
  • the purpose of the present invention is to design a heated tobacco product with perforated sidewalls based on the above-mentioned prior art.
  • the tobacco product is formed by a multi-section rolling method, and the cigarette includes a tobacco section, a smoke extraction section, a functional nozzle rod section and the like.
  • a side wall through hole is arranged at a specific position of the cigarette to form a smoke extraction section.
  • the cigarette is inserted into a closed heating smoking device.
  • the smoke generated by the tobacco section passes through the Bernoulli principle and the principle of gas diffusion.
  • the generated driving force is actively migrated, and then mixed with the air entering the side wall through holes to form mainstream smoke.
  • the tobacco product can conveniently adjust the extraction efficiency, dilution rate and temperature of the smoke, thereby improving the sensory quality of the heated tobacco product.
  • the design mechanism of the present invention is as follows: the tobacco product is provided with a side wall through hole at a specific position of the cigarette to form a smoke extraction section, and a concentration difference and a pressure difference are formed between the tobacco section and the smoke extraction section. Fresh smoke from cigarette tobacco segments is extracted into mainstream smoke.
  • a heated tobacco product with a perforated side wall comprising a tobacco section and a functional nozzle rod section, wherein: a smoke extraction section is arranged between the tobacco section and the functional nozzle rod section, a tobacco section, a smoke extraction section, and a functional nozzle rod
  • the sections are wrapped and connected together by external crimping materials
  • the flue gas extraction section is a cylinder with a cavity structure, and at least one side wall through hole communicating with the cavity structure is opened on the side wall of the cylinder,
  • a coaxial through hole is arranged on the outer crimping material at a position corresponding to the side wall through hole.
  • the form of the hollow structure can be divided into the following three types:
  • the cross-section of the hollow structure is a regular or irregular shape such as a circle, a regular hexagon, a hexagon, a pentagon, and a heart shape (see Figure 2).
  • the second type is the hollow structure is a ring-shaped through-hole cavity composed of different diameter sections (as shown in Figure 3). Arbitrary adjustment, can be 2 ⁇ 10mm.
  • the third type is that the hollow structure is composed of a number of evenly distributed through-holes in the axial direction (as shown in FIG. 4 ), and the number and diameter of the holes can be adjusted arbitrarily.
  • the side wall through holes directly lead to the central part of the flue gas extraction section in the radial direction or at a certain angle, so that a plurality of holes are all communicated with the side wall through holes.
  • the length of the flue gas extraction section can be adjusted according to the actual situation, and can be 5-30mm.
  • the angle ⁇ between the side wall through hole and the axis of the hollow cavity is 90°-150°, preferably 90°.
  • the diameter of the through holes can be adjusted according to the needs, and the optimal diameter is 0.01 ⁇ 3mm; the number of through holes can be adjusted according to the needs, the optimal number is 1 ⁇ 30, and the through holes are evenly distributed along the circumference; the diameter of the through holes and the number of the through holes are determined according to the actual situation. Adjustment and matching; the position of the through hole from the tobacco section can be adjusted arbitrarily, and the optimal distance is 0.5-15mm.
  • the hole diameter of the coaxial through hole on the outer crimping material is not smaller than the hole diameter of the side wall through hole.
  • the tobacco segment is composed of various forms of tobacco raw materials or other smoking substrates wrapped in cigarette paper; the tobacco raw materials are tobacco substances composed of a certain formula, which can be in the form of sheets, filaments, granules, formed rods, and porous rods. , gel form; cigarette paper is airtight material or controllable air permeability material.
  • the flue gas extraction section is made of hard materials with certain hardness, including metal, PEEK, PTFE, plexiglass, acetate fiber and paper-based materials.
  • the heated tobacco product is used in conjunction with a closed tobacco heating appliance.
  • the closed heating appliance is composed of a heating cavity and a sealing structure (see FIG. 6 ).
  • the heating cavity is a cylindrical cavity structure, and the heating method can be circumferential heating. , or core heating, the heating device partially or completely covers the entire tobacco segment.
  • the sealing structure can be a soft sealing ring, artificial lip, or other sealing circumferential sealing structure.
  • a cap can be set to enhance the sealing effect.
  • the cap is a hollow cylindrical structure, the inner diameter of which is slightly larger than the outer diameter of the cigarette to ensure that air can enter the side wall through hole, and the inner cavity is cylindrical or gradually expanding trumpet shape. The angle between the horn and the central axis is greater than or equal to 0° and less than or equal to 5°.
  • the heating chamber, the sealing ring and the cap are coaxial, and the cap is connected to the heating chamber by means of threads, snaps or magnetic attraction.
  • the cigarette that is, the tobacco product
  • the tobacco in the tobacco section is heated to generate smoke, so that the concentration of the smoke in the tobacco section is increased, and the air pressure is increased;
  • the side wall through hole enters the flue gas extraction section, forming a lower flue gas concentration and lower air pressure area in the hollow cavity; under the combined action of the concentration difference and the air pressure difference between the tobacco section and the flue gas extraction section, the smoke in the tobacco section actively It migrates to the position where the side wall through hole is located, and is carried by the inflow air through the side wall through hole into the functional nozzle rod section to form mainstream smoke.
  • the extraction efficiency of flue gas, the dilution efficiency of flue gas and the temperature of mainstream flue gas can be adjusted by adjusting the number, diameter, punching direction and distance from the tobacco section of the side wall through holes.
  • the method of indirectly carrying the flue gas by the cigarette extraction section can effectively prevent the cold air from passing through the tobacco section during the smoking process, improve the heating efficiency, and at the same time effectively reduce the oxygen content of the tobacco section.
  • the purpose of combustion 2.
  • the extraction efficiency of the flue gas, the dilution efficiency of the flue gas and the temperature of the mainstream flue gas can be easily adjusted, thereby improving the The sensory quality of cigarettes;
  • the device has a simple structure and is easy to industrialize production.
  • Fig. 1 is a kind of sidewall perforated heated tobacco product axial cross-sectional structure schematic diagram
  • Figure 2 is a schematic structural diagram of the first form of the flue gas extraction section.
  • Figure 3 is a schematic structural diagram of the second form of the flue gas extraction section.
  • FIG. 4 is a schematic structural diagram and a cross-sectional structural schematic diagram of the third form of the flue gas extraction section.
  • FIG. 5 is a schematic structural diagram of a sidewall through hole punching direction.
  • FIG. 6 is a schematic diagram of the cross-sectional structure of a cigarette and a smoking appliance in a use state.
  • Figure 7 is a data chart, which is the mass flow data of each section obtained by simulation using Fluent software and the calculated flue gas extraction efficiency and dilution rate data under the conditions of different sidewall through hole diameters and cavity inner diameters.
  • a heated tobacco product with a perforated side wall comprising a tobacco segment (1) and a functional nozzle rod segment (3), wherein: between the tobacco segment (1) and the functional nozzle rod segment (3) A smoke extraction section (2) is provided, and the tobacco section (1), the smoke extraction section (2), and the functional nozzle rod section (3) are wrapped and connected to each other through external crimping materials (ie, cigarette paper 4, tipping paper 5).
  • external crimping materials ie, cigarette paper 4, tipping paper 5
  • the flue gas extraction section is a cylinder containing a cavity structure (2-1), and at least one side wall through hole communicating with the cavity structure (2-1) is opened on the side wall of the cylinder (2-2), a coaxial through hole (4-1) is provided on the cigarette paper (4) at a position corresponding to the side wall through hole (2-2).
  • the structure of the hollow cavity can be divided into the following three types:
  • the cross section of the cavity structure (2-1) is a regular or irregular shape such as a circle, a regular hexagon, a hexagon, a pentagon, and a heart shape (as shown in Figure 2).
  • the second is the cavity structure (2-1 is a ring-shaped hollow cavity composed of different diameter sections (as shown in Figure 3), which is composed of 2-3 sections.
  • the inner diameter of the hollow cavity can be adjusted arbitrarily, and it can be 2 ⁇ 10mm.
  • the third type is that the cavity structure (2-1) is composed of a number of evenly distributed channels passing through in the axial direction (as shown in FIG. 4 ), and the number and diameter of the channels can be adjusted arbitrarily.
  • the angle ⁇ between the side wall through hole and the axis of the hollow cavity is 90°-150° (as shown in FIG. 5 ), preferably 90°.
  • the diameter of the through holes can be adjusted arbitrarily, and the optimal diameter is 0.01-3mm; the number of through-holes can be adjusted arbitrarily, the optimal number is 1-30, and the through-holes are evenly distributed along the circumference; the through-hole diameter and the number of through-holes can be adjusted and matched according to the actual situation ;
  • the position of the through hole from the tobacco section can be adjusted arbitrarily, and the optimal distance is 0.5-15mm.
  • the tobacco segment is composed of various forms of tobacco raw materials or other smoking substrates wrapped in cigarette paper; the tobacco raw materials are tobacco substances composed of a certain formula, which can be in the form of sheets, filaments, granules, formed rods, and porous rods. , gel form; cigarette paper is airtight material or controllable air permeability material.
  • the flue gas extraction section is made of hard materials with certain hardness, including metal, PEEK, PTFE, plexiglass, acetate fiber and paper-based materials.
  • the heated tobacco product is used in conjunction with a closed tobacco heating appliance.
  • the closed heating appliance is composed of a heating chamber 6 and a sealing ring 8 (see FIG. 6 ).
  • the sealing structure can be a soft sealing ring, artificial lip, or other sealing circumferential sealing structure.
  • a cap 7 can be provided to enhance the sealing effect.
  • the cap is a hollow cylindrical structure, and its inner diameter is slightly larger than the outer diameter of the cigarette to ensure that air can enter the side wall through hole, and its inner cavity is a gradually expanding trumpet shape (Fig. 6). The angle between the center axis is greater than or equal to 0° and less than or equal to 5°.
  • the heating chamber 6, the sealing ring 8 and the cap 7 are coaxial, and the cap is threaded, snapped or magnetically attracted way to connect with the heating chamber.
  • the side wall through hole 2-2 is located outside the smoking device sealing ring 8 to ensure that the outside air can flow into the hollow cavity 2-1 through the through hole.
  • Figure 7 is a data chart, which shows the mass flow data of each section obtained by simulation using Fluent software under the conditions of different sidewall through hole diameters and cavity inner diameters, as well as the calculated flue gas extraction efficiency and dilution rate data. It can be seen from the table that the extraction efficiency and dilution rate of flue gas can be easily adjusted by adjusting the diameter of the side wall through-hole and the inner diameter of the cavity.

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  • Manufacture Of Tobacco Products (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

一种侧壁打孔的加热烟草制品(9)，包括烟草段(1)和功能嘴棒段(3)，在烟草段(1)和功能嘴棒段(3)之间设置有烟气提取段(2)，烟草段(1)、烟气提取段(2)、功能嘴棒段(3)通过外部卷接材料包裹连接在一起，烟气提取段(2)为一含有中空结构(2-1)的柱体，且在柱体的侧壁上开设有至少一个与中空结构(2-1)连通的侧壁通孔(2-2)。使用时，将该烟草制品(9)***密闭式的加热烟具中，在抽吸中烟草段(1)生成的烟气通过主动迁移后与侧壁通孔(2-2)进入的空气混合形成主流烟气。该烟草制品(9)可方便地调节烟气的提取效率、稀释率和烟气温度，从而改善加热烟草制品(9)的感官质量；并可有效避免抽吸过程中冷空气通过烟草段(1)，提高了加热效率，同时有效降低了烟草段(1)氧气含量，实现加热不燃烧的目的；且该烟草制品(9)构造简单，易于工业化生产。

Description

一种侧壁打孔的加热烟草制品 技术领域
本发明涉及卷烟产品制造领域，具体是一种侧壁打孔的加热烟草制品，属于加热不燃烧卷烟类别。
背景技术
传统烟草已经有几百年的历史，已经融入到大多数烟民的生活之中。近年来随着人民生活水平的提高，吸烟与健康、二手烟危害等问题越来越被人们重视，传统烟草制品所带来的危害性日渐突出。与此同时，随着WHO《烟草控制框架公约》的实施，特别是世界各国公共场所吸烟禁令范围的逐步扩大，烟草制品的发展环境发生了重大而深刻的变化，烟草制品结构正朝着多样化和无烟化的发展方向加快调整[1]。(程晓兵，李保江，韩彦东.世界新型烟草发展状况[J].中国烟草，2014(3)：38.)新型烟草制品逐渐成为各大跨国烟草企业应对传统烟草制品销量日趋下滑的现实选择[2]。(刘亚丽，王金棒，郑新章，等.加热不燃烧烟草制品发展现状及展望[J].中国烟草学报，2018,24(4))
目前绝大多数的电加热卷烟均采用空气作为烟气的载体，为了保证烟草不燃烧，所施加的加热温度通常较低，一般不超过300℃，与传统卷烟相比，电加热卷烟有害成分的释放量减少，但是烟草本香成分难以完全释放，烟气量不足，因此这类卷烟较难以被传统烟民接受。如果采用密闭式的卷烟结构或密闭式的加热器具结构(本案申请人在先申请的中国专利201911021676.8和201911021823.1)，使卷烟的烟草段与空气隔离，形成新鲜烟气对密闭式 烟草部分的气氛进行不断更新，使得氧气含量随着加热过程逐渐降低，此时即使升高加热温度，亦不会发生燃烧现象。密闭式的卷烟结构不会出现烟草残渣掉落而污染烟具的情况，可大大提高加热卷烟的加热温度，提高烟草利用率与烟气的释放量。由于没有气流经过烟草，密闭式卷烟烟气迁移将会变得尤为重要。
对于密闭式卷烟烟气的提取可通过两种方式，一是利用气流载带，如传统卷烟烟气产生过程；二是利用烟气的主动迁移。烟气主动迁移的驱动力主要有两种，一个是浓度差，另一个是压力差。本发明通过特定的结构设计来产生烟气主动迁移的驱动力，从而利用烟气主动迁移和对流来形成主流烟气，提出了一种侧壁打孔的加热烟草制品。
发明内容
本发明的目的正是基于上述现有技术状况而设计了一种侧壁打孔的加热烟草制品。该烟草制品通过多段卷接的方式形成，烟支包括烟草段、烟气提取段、功能嘴棒段等部分。在烟支特定位置设置侧壁通孔构成烟气提取段，使用时，将该烟支***密闭式的加热烟具中，在抽吸中烟草段生成的烟气通过伯努利原理和气体扩散原理产生的驱动力进行主动迁移，再与侧壁通孔进入的空气混合形成主流烟气。该烟草制品可方便地调节烟气的提取效率、稀释率和烟气温度，从而改善加热烟草制品的感官质量。
本发明的设计机理是：该烟草制品在烟支特定位置设置侧壁通孔构成烟气提取段，在烟草段和烟气提取段之间形成浓度差和压力差，利用气体迁移原理，将密闭卷烟烟草段生成的新鲜烟气提取至主流烟气中。
本发明的目的是通过以下技术方案来实现的：
一种侧壁打孔的加热烟草制品，包括烟草段和功能嘴棒段，其中：在烟草段和功能嘴棒段之间设置有烟气提取段，烟草段、烟气提取段、功能嘴棒段通过外部卷接材料包裹连接在一起，所述烟气提取段为一含有空腔结构的柱体，且在柱体的侧壁上开设有至少一个与空腔结构连通的侧壁通孔，于外部卷接材料上与侧壁通孔相应位置设置同轴通孔。
所述中空结构的形式可分为以下三种：
一种是中空结构的截面为圆形、正六边形、六角形、五角形、心形等规则或不规则形(参图2所示)。
第二种是中空结构为不同直径段构成的环台式贯通的中空腔(如图3所示)，环台式贯通的中空腔为2-5段，优选2-3段，中空腔的圆周内径可任意调节，可为2～10mm。
第三种是中空结构由均匀分布的若干个沿轴向贯通的孔道构成(如图4所示)，孔道的数量和孔径可任意调节。在该结构中，侧壁通孔沿径向或呈一定角度直接通向烟气提取段中心部位，使得多个孔道均与侧壁通孔相连通。
烟气提取段的长度可根据实际情况调节，可为5～30mm。
所述侧壁通孔与中空腔轴线之间的夹角α在90°-150°，优选90°。通孔孔径可根据需要调节，最优孔径为0.01～3mm；通孔数量可根据需要调节，最优为1～30个，通孔沿圆周均匀分布；通孔孔径与通孔数量根据实际情况进行调整匹配；通孔距离烟草段的位置可任意调节，最优的距离为 0.5～15mm。
外部卷接材料上同轴通孔的孔径不小于侧壁通孔的孔径。
烟草段是由卷烟纸卷包各种形态的烟草原料或其他发烟基质组成；所述烟草原料为一定配方组成的烟草物质，其可以是片状、丝状、颗粒状、成形棒状、多孔棒状、凝胶形态；卷烟纸为不透气材料或可控透气度材料。
烟气提取段由具有一定硬度的硬质材料制成，包括金属、PEEK、聚四氟乙烯、有机玻璃、醋酸纤维和纸基材料等。
该加热烟草制品与密闭式烟草加热器具配合使用，所述密闭式的加热器具由加热腔和密封结构组成(参见图6)，加热腔为一筒腔式结构，其加热方式可以为周向加热，也可以是内芯加热，加热装置部分或完全覆盖整个烟草段。密封结构可以是软质密封环、人工唇、或其他密封圆周密封结构。可设置一盖帽来加强密封效果，盖帽为一中空的圆筒结构，其内径略大于烟支外径以保证空气可进入侧壁通孔，其内腔为圆柱形或渐扩的喇叭形，若是喇叭形与中心轴线的夹角大于等于0°小于等于5°，加热腔、密封环和盖帽三者同轴，盖帽通过螺纹、卡扣或磁吸方式与加热腔相连接。烟支***烟具后，侧壁通孔位于烟具密封环之外(即必须与外界空气连通)。
本发明在使用时，将该烟支(即烟草制品)***密闭式的加热器具，烟草段烟草受热后生成烟气，使烟草段烟气浓度增大，气压升高；抽吸时，空气从侧壁通孔进入烟气提取段，在中空腔体内形成较低烟气浓度与较低气压区域；在烟草段与烟气提取段之间浓度差和气压差共同作用下，烟草段烟气主动迁移至侧壁通孔所在位置，被侧壁通孔流入空气载带进入功能嘴棒段， 形成主流烟气。通过调节侧壁通孔的数量、孔径、打孔方向及距离烟草段的距离，可以调节烟气的提取效率、烟气的稀释效率以及主流烟气温度。
本发明的优点：1、利用烟支提取段对烟气间接载带的方式可有效避免抽吸过程中冷空气通过烟草段，提高了加热效率，同时有效降低了烟草段氧气含量，实现加热不燃烧的目的；2、通过调节侧壁通孔的数量、孔径、打孔方向及距离烟草段的距离，可方便地调节烟气的提取效率、烟气的稀释效率以及主流烟气温度，从而改善卷烟的感官质量；3、装置结构简单，易于工业化生产。
附图说明
图1一种侧壁打孔的加热烟草制品轴向剖面结构示意图，
图1中：1、烟草段，2、烟气提取段，2-1、空腔结构，2-2、侧壁通孔；3、功能嘴棒段，4、卷烟纸，4-1、同轴通孔，5、接装纸。
图2第一种形式的烟气提取段结构示意图。
图3第二种形式的烟气提取段结构示意图。
图4第三种形式的烟气提取段结构示意图及剖面结构示意图。
图5侧壁通孔打孔方向结构示意图。
图6使用状态下的烟支和烟具剖面结构示意图。
图6中：6、加热腔，7、盖帽，8、密封环，9、烟支。
图7为数据图表，为不同的侧壁通孔孔径和空腔内径条件下，使用Fluent软件模拟获得的各截面的质量流量数据以及计算所得的烟气提取效率和稀释率数据。
实施发明的最佳方式
本发明以下结合附图做进一步详细描述：
如图1所述：一种侧壁打孔的加热烟草制品，包括烟草段(1)和功能嘴棒段(3)，其中：在烟草段(1)和功能嘴棒段(3)之间设置有烟气提取段(2)，烟草段(1)、烟气提取段(2)、功能嘴棒段(3)通过外部卷接材料(即卷烟纸4、接装纸5)包裹连接在一起，所述烟气提取段为一含有空腔结构(2-1)的柱体，且在柱体的侧壁上开设有至少一个与空腔结构(2-1)连通的侧壁通孔(2-2)，于卷烟纸(4)上与侧壁通孔(2-2)相应位置设置同轴通孔(4-1)。
所述中空腔的结构形式可分为以下三种：
一种是空腔结构(2-1)的截面为圆形、正六边形、六角形、五角形、心形等规则或不规则形(如图2所示)。
第二种是空腔结构(2-1为不同直径段构成的环台式贯通的中空腔(如图3所示)，由2-3段构成，中空腔的圆周内径可任意调节，可为2～10mm。
第三种是空腔结构(2-1)由均匀分布的若干个沿轴向贯通的孔道构成(如图4所示)，孔道的数量和孔径可任意调节。
所述侧壁通孔与中空腔轴线之间的夹角α在90°-150°(如图5所示)，优选90°。通孔孔径可任意调节，最优孔径为0.01～3mm；通孔数量可任意调节，最优为1～30个，通孔沿圆周均匀分布；通孔孔径与通孔数量根据实际情况进行调整匹配；通孔距离烟草段的位置可任意调节，最优的距离为0.5～15mm。
烟草段是由卷烟纸卷包各种形态的烟草原料或其他发烟基质组成；所述烟草原料为一定配方组成的烟草物质，其可以是片状、丝状、颗粒状、成形棒状、多孔棒状、凝胶形态；卷烟纸为不透气材料或可控透气度材料。
烟气提取段由具有一定硬度的硬质材料制成，包括金属、PEEK、聚四氟乙烯、有机玻璃、醋酸纤维和纸基材料等。
该加热烟草制品与密闭式烟草加热器具配合使用，所述密闭式的加热器具由加热腔6和密封环8组成(参见图6)，加热腔为一筒腔式结构，其加热方式可以为周向加热，也可以是内芯加热，加热腔覆盖整个烟草段。密封结构可以是软质密封环、人工唇、或其他密封圆周密封结构。可设置一盖帽7来加强密封效果，盖帽为一中空的圆筒结构，其内径略大于烟支外径以保证空气可进入侧壁通孔，其内腔为渐扩的喇叭形(图6中为喇叭形，也可为圆柱形)，与中心轴线的夹角大于等于0°小于等于5°，加热腔6、密封环8和盖帽7三者同轴，盖帽通过螺纹、卡扣或磁吸方式与加热腔相连接。烟支***烟具后，侧壁通孔2-2位于烟具密封环8之外，保证外界空气可通过该通孔流入中空腔2-1。
图7为数据图表，表中展示了不同的侧壁通孔孔径和空腔内径条件下，使用Fluent软件模拟获得的各截面的质量流量数据，以及计算所得的烟气提取效率和稀释率数据。从表中可以看出，通过调节侧壁通孔孔径和空腔内径，可方便的调节烟气的提取效率和稀释率。

Claims (10)

  1. 一种侧壁打孔的加热烟草制品，包括烟草段(1)和功能嘴棒段(3)，其特征在于：在烟草段(1)和功能嘴棒段(3)之间设置有烟气提取段(2)，烟草段(1)、烟气提取段(2)、功能嘴棒段(3)通过外部卷接材料包裹连接在一起，所述烟气提取段为一含有空腔结构(2-1)的柱体，且在柱体的侧壁上开设有至少一个与空腔结构(2-1)连通的侧壁通孔(2-2)，于外部卷接材料(4)上与侧壁通孔(2-2)相应位置设置同轴通孔(4-1)。
  2. 根据权利要求1所述的侧壁打孔的加热烟草制品，其特征在于：所述空腔结构(2-1)为贯通形柱状，其空腔柱状结构截面为圆形、正六边形、六角形、五角形、心形、等规则形或其他不规则形。
  3. 根据权利要求1所述的侧壁打孔的加热烟草制品，其特征在于：所述空腔结构(2-1)为不同直径段构成的环台式贯通的中空腔。
  4. 根据权利要求1所述的侧壁打孔的加热烟草制品，其特征在于：所述空腔结构(2-1)由均匀分布的若干个沿轴向贯通的孔道构成，孔道的数量和孔径可根据需要调节。
  5. 根据权利要求1所述的侧壁打孔的加热烟草制品，其特征在于：所述侧壁通孔(2-2)与空腔结构(2-1)中轴线之间的夹角α在90°-150°。
  6. 根据权利要求1所述的侧壁打孔的加热烟草制品，其特征在于：所述同轴通孔(4-1)的孔径不小于侧壁通孔(2-2)的孔径。
  7. 根据权利要求1所述的侧壁打孔的加热烟草制品，其特征在于：烟草段(1)是由卷烟纸卷包各种形态的烟草原料或其他发烟基质组成；所 述烟草原料为一定配方组成的烟草物质，其可以是片状、丝状、颗粒状、成形棒状、多孔棒状、凝胶形态；卷烟纸为不透气材料或可控透气度材料。
  8. 根据权利要求1所述的侧壁打孔的加热烟草制品，其特征在于：烟气提取段(2)由具有一定硬度的硬质材料制成，包括金属、PEEK、聚四氟乙烯、有机玻璃、醋酸纤维和纸基材料等。
  9. 根据权利要求1所述的侧壁打孔的加热烟草制品，其特征在于：该加热烟草制品为加热不燃烧烟草制品。
  10. 根据权利要求1或8所述的侧壁打孔的加热烟草制品，其特征在于：该加热烟草制品(9)与密闭式烟草加热器具配合使用，所述密闭式的加热器具由加热腔(6)和密封结构组成，加热腔(6)为一筒腔式结构，其加热方式可以为周向加热，也可以是内芯加热，加热装置部分或完全覆盖整个烟草段。
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