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A heat-not-burn cigarette using an energy-based heat source

A heat-not-burn, heat source technology, applied in the field of tobacco, to achieve the effect of reducing the production of toxic and harmful substances and reducing the rate of heat release

Active Publication Date: 2022-02-18
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When applying fuel-heating heat sources to heat-not-burn cigarettes, there are still the following problems: ①Whether the temperature range that the heat source can reach can meet the requirements of heat-not-burn cigarettes; ③ how long the heat source can last within the required temperature range, and whether it can meet the time required for normal cigarette smoking

Method used

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  • A heat-not-burn cigarette using an energy-based heat source
  • A heat-not-burn cigarette using an energy-based heat source
  • A heat-not-burn cigarette using an energy-based heat source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The structural design adopted in this embodiment is as follows figure 1 As shown, the filter tip 1 is located at the leftmost end of the cigarette, the cooling section 2 is connected with the filter tip, and the heat source sealing cladding metal shell structural material 4 adopts a heat source sealing cladding copper with an outer diameter of 4mm, a thickness of 0.2mm, and a length of 60mm. The shell is made, the radius of the energy-based heat source 7 is 1 mm, and the length is 20 mm. The energy-based heat source 7 is fixed in the heat source airtight cladding metal shell through the bracket 11, and glass fiber flame-retardant material 3 of appropriate thickness is filled at both ends and 10. A serrated tobacco sheet is wound on the outer layer of the heat source sealed and coated metal shell. The length of the tobacco sheet is 50 mm. The right end of the tobacco sheet is connected with a heat insulating material with a length of 10 mm. The outermost layer is covered...

Embodiment 2

[0053] The structural design adopted in this embodiment is as follows figure 1 As shown, the specific connection method is the same as Example 1, the difference is that the heat source airtight clad copper shell adopts a closed copper tube with an outer diameter of 6mm, a thickness of 0.2mm, and a length of 60mm, and a sealed copper tube with a radius of 1mm and a length of 20mm. Energy-based heat source. Set a suitable observation point on the outer wall of the heat source airtight clad copper shell, and place a thermocouple on the corresponding observation point to record the temperature change of the heat source airtight clad copper shell outer wall. The test results show:

[0054] The highest temperature at the observation point is 313.2°C;

[0055] The average burning speed is 0.328cm / s.

Embodiment 3

[0057] The structural design adopted in this embodiment is as follows figure 1 As shown, the specific connection method is the same as Example 1, the difference is that the outer diameter of the heat source is 6 mm, the thickness is 0.25 mm, and the length is 60 mm. The outer diameter of the heat source is 1 mm. An energy-based heat source with a length of 20 mm. Set a suitable observation point on the outer wall of the heat source airtight clad copper shell, and place a thermocouple on the corresponding observation point to record the temperature change of the heat source airtight clad copper shell outer wall. The test results show:

[0058] The highest temperature at the observation point is 283.4°C;

[0059] The average burning speed is 0.342cm / s.

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Abstract

The invention belongs to the technical field of tobacco, in particular to a heat-not-burn cigarette using an energy-based heat source. It includes a filter tip, a cooling section and a main section arranged in sequence, and the filter tip, the cooling section and the main section are covered with wrapping paper; the main section includes a metal shell containing an energy-based heat source and a tobacco sheet; the metal shell is sealed at both ends In the tube body, a cylindrical energy-based heat source is placed in the metal shell. The volume of the energy-based heat source is smaller than the volume of the metal shell, and there are gaps in the metal shell; the outer periphery of the metal shell is wrapped with tobacco sheets, and the surface of the tobacco sheets is uneven. A void is formed between the paper and the tobacco sheet. In the present invention, the heat released by the combustion of an energy-based heat source is transferred through heat conduction, heat convection, and heat radiation through the heat source’s sealed and coated metal shell, and is used for drying tobacco sheets, thereby curing shredded tobacco at low temperature, replacing traditional cigarettes The high-temperature pyrolysis mode greatly reduces the production of toxic and harmful substances.

Description

technical field [0001] The invention belongs to the technical field of tobacco, in particular to a heat-not-burn cigarette using an energy-based heat source. Background technique [0002] The toxic and harmful substances released by the burning of traditional cigarettes seriously endanger people's health. When smoking cannot be banned globally, scholars from various countries focus their research on how to reduce the harm of smoking. In recent years, with the development and progress of science, it has been found that the release of toxic and harmful components of tobacco under medium and low temperature heating conditions has been significantly reduced compared with traditional smoking patterns, so low-temperature cigarette technology has greatly reduced the harm of smoking. The heat sources used in low-temperature cigarettes can be divided into three types according to different heating methods: electric heating type, physical and chemical heating type and fuel heating typ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24D1/22
Inventor 郭耸李晨晨周顺张琳王孝峰张晓宇曹芸陈学兵陈舒馨刘洪胜
Owner NANJING UNIV OF SCI & TECH
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