Heat storage type heating smoking set and using method thereof
By using airflow heating and releasing regulator in heating smoke tools, using thermal expansion materials and heat storage materials to adjust the flue gas flow and temperature, the problems of uneven heating and energy waste are solved, energy saving and uniform heating are achieved, and the flue gas temperature is reduced Excessive risk.
Patent Information
- Application Number
- CN202411517558.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2024-12-10
AI Technical Summary
The existing heating smoke utensils have problems such as uneven heating and serious energy waste, which leads to the problem of excessive smoke temperature during the suction process and the hot mouth.
A heat storage type heating smoke utensil is designed, using an airflow heating and release regulator, including an airflow flow regulation unit and an airflow heating unit, and the flue gas flow rate and temperature are adjusted respectively by a heat expansion material and a heat storage material, so as to achieve the airflow heating and release regulator. Even heating and energy saving.
Energy saving during heating is achieved, the problem of excessive flue gas temperature is avoided, a more uniform flue gas temperature is provided, the risk of flue gas burning nozzle is reduced, and the need for electronic heating is reduced during the pumping process.
Smart Images
Figure CN119097123A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of heated smoking articles, and in particular relates to a heat storage type heated smoking article and a use method thereof. Background Art
[0002] As the global tobacco control environment becomes increasingly severe, the development of new tobacco technologies has attracted worldwide attention. Heat-not-burn technology is one of the new tobacco technologies. It uses smoking utensils to heat the cigarette to about 350°C to emit smoke. Since there is no combustion, the cigarette produces fewer harmful substances. In addition, it can restore the taste of cigarettes to the greatest extent, making heat-not-burn technology a research hotspot in the industry. There are different heating methods in the heating process described above. At present, resistance heating or electromagnetic induction heating is generally used. However, when these two technologies are used to directly heat the cigarette, there is often a problem of uneven heat transfer, which is not conducive to the normal smoking of the cigarette. Airflow heating technology usually refers to the airflow passing through the heating element. Through convection heat transfer, the airflow temperature is increased. When the high-temperature airflow flows through the cigarette core material, it is heated to produce smoke. The use of this heating method effectively solves the problem of uneven heat transfer. However, during the smoking process of airflow-heated smoking devices, the heating element of the smoking device is always in a heat-releasing state. In the intervals when the smoker is not smoking, there is no airflow and convection heat exchange with the heating element. At this time, the heat is not utilized and the energy is wasted. In addition, because the air remaining around the heating element is always heated, when the smoker draws again, the first few puffs of smoke will cause problems such as overheating and burning the mouth.
[0003] The present invention is proposed to solve any of the above problems. Summary of the invention
[0004] The present invention aims at solving the problems of uneven heating and serious energy waste in existing heating smoking articles, and provides a heat storage type heating smoking article, which can not only heat the smoking material evenly, but also achieve the purpose of energy saving, and at the same time avoid the problem of excessively high smoke temperature due to continuous heating of air during the inhalation interval, which causes the smoker's mouth to be burned.
[0005] The technical solution adopted by the present invention is:
[0006] A first aspect of the present invention provides a heat storage type heating smoking device, wherein an airflow heating and releasing device 2 is arranged below a cigarette accommodating cavity 1 of the heating smoking device, and the cigarette accommodating cavity 1 is connected to the airflow heating and releasing device 2;
[0007] The airflow heating and release device 2 is a honeycomb structure with a plurality of vents, and includes:
[0008] The housing 21 is a cavity structure with through holes 211 on both end surfaces;
[0009] The airflow heating regulating part 22 is arranged inside the shell 21 and adapted to the cavity of the shell 21. The airflow heating regulating part 22 includes an upper airflow flow regulating part 221 and a lower airflow heating part 222. The airflow flow regulating part 221 and the airflow heating part 222 are respectively provided with a first air hole a and a second air hole b. The first air hole a and the second air hole b are connected to each other and to the through holes 211 on the two end surfaces of the shell 21. The material of the airflow flow regulating part 221 is a thermal expansion material, and the material of the airflow heating part 222 is a heat storage material.
[0010] Preferably, the heating smoking device further comprises at least a power source 3, a control mainboard 4 and a smoking device housing 5, a heating indicator light 51 connected to the control mainboard 4 and the power source is arranged on the outer wall of the smoking device housing 5, the airflow heating and releasing device 2 is connected to the control mainboard 4 and the power source 3, and the power source 3, the control mainboard 4, the cigarette accommodating cavity 1 and the airflow heating and releasing device 2 are all installed inside the smoking device housing 5. The heating indicator light 51 may also be other types of prompt components, as long as it can provide smokers with a model that the heating has stopped and smoking is possible.
[0011] In addition, the smoking device shell 5 includes at least one air inlet, so that the outside air can smoothly enter the airflow heating regulator 2. The optimal air inlet can be set at the lower end of the smoking device shell 5, and directly opposite to the air inlet end of the airflow heating part 222. A certain gap should be left between the airflow heating part 222 and the bottom of the smoking device shell 5 to ensure that the air can flow normally into each air hole of the second air hole b.
[0012] To ensure the heating effect of the smoking material, the first air hole a of the airflow flow regulating part 221 and the second air hole b of the airflow heating part 222 should be connected first, and the periphery of the connection position between the airflow flow regulating part 221 and the airflow heating part 222 should be sealed to prevent hot air from flowing out from the gap connecting the two.
[0013] Preferably, the airflow heating and release device 2 is detachably connected to the cigarette accommodating chamber 1.
[0014] Preferably, the inner wall of the shell 21 is also provided with a heat-insulating partition 212 extending radially inward, and the partition 212 divides the shell 21 into an upper shell section 213 and a lower shell section 214 that are interconnected. The airflow flow regulating part 221 is arranged in the upper shell section 21, and the airflow heating part 222 is arranged in the lower shell section 21.
[0015] The heat-insulating partition 212 is provided to avoid direct contact between the airflow regulating part 221 and the airflow heating part 222, which causes the heat to be directly transferred from the heat storage material to the thermal expansion material, thereby causing the thermal expansion material to lose its airflow regulating function. Therefore, the heat-insulating partition 212 can be a sheet structure with a plurality of holes, or a circular ring structure, as long as the airflow is guaranteed to flow normally in the first air hole a and the second air hole b while avoiding direct contact between the airflow regulating part 221 and the airflow heating part 222.
[0016] It should be noted that in order to prevent the heated air from flowing out from the gaps between the components, except for the first air hole a, the second air hole b and the cigarette receiving cavity through which the hot air should flow normally, the remaining positions should be sealed to ensure the airflow heating effect.
[0017] Preferably, the outer wall of the shell lower section 214 is wrapped with a heating coil.
[0018] Preferably, electromagnetic induction particles are uniformly dispersed inside the airflow heating portion 222 .
[0019] Preferably, the heat storage material is one of a carbon nanotube / paraffin nanocomposite material, a porous metal foam reinforced paraffin, and a carbon nanotube / paraffin composite phase change material. It should be noted that the heat release curves of these heat storage materials are close to linear, wherein the heat release curve close to linear mentioned here means that when the single-puff capacity, the puff duration, and the puff interval are all the same, the heat transferred to the air by the above-mentioned heat storage material is close to a fixed value. For example, when the heat storage material is a carbon nanotube / paraffin nanocomposite material, the puff capacity is 55 mL / puff, the puff duration is 3s / puff, and the puff interval is 30s, the air flowing through can be evenly heated to approximately 365°C.
[0020] In the suction environment, the suction volume of each puff is consistent, specifically, the optimal suction volume is 55mL / puff, the suction duration is 3s, and the suction interval is 30s.
[0021] Preferably, the thermal expansion material is one of a composite material, a ceramic material and a metal material.
[0022] Among them, the specific selection method of the thermal expansion material is: to determine it specifically according to the heating curve of the cigarette. For some cigarettes, the highest heating temperature is 200 degrees, and the airflow flow regulating part 221 will expand when the airflow temperature is about 200°C. At this time, the airflow flow regulating part 221 can choose, for example, expanded graphite composite materials, because the temperature at which it starts to expand is about 200 degrees; and for some cigarettes, when the highest heating temperature is at other temperatures, the thermal expansion material can be correspondingly selected, such as thermal expansion microcapsules, Zr-W, Sc-W controllable thermal expansion composite materials, phenolic resin, Al-Si, Al-Zr composite materials, etc.
[0023] Preferably, a temperature sensor is also connected to the side wall of the airflow heating part 222 for monitoring the temperature of the airflow heating part 222 after heat storage.
[0024] The second aspect of the present invention provides a method for using the new energy-saving heating smoking device according to the first aspect, wherein the method is as follows: before starting to smoke, the power supply 3 is started, and the heating coil 6 starts to work at the same time, and the electromagnetic induction particles inside the airflow heating part 222 heat the airflow heating part, and the airflow heating part 222 is heated and stores heat, and when the temperature sensor detects that the temperature of the airflow heating part 222 reaches 215-265°C, the control mainboard 4 controls the power supply to stop working, and the heating indicator light 51 goes out;
[0025] When the suction starts, the air enters from the bottom of the airflow heating regulating part 22. When the air flows through the airflow heating part 222 from the second air hole b, the heat storage material exchanges heat with the air synchronously, thereby heating the air. Further, the heated hot air flows through the airflow regulating part 221 through the first air hole a. At this time, the thermal expansion material contacts the hot air.
[0026] When the temperature of the smoke flowing through the airflow regulating part 221 is greater than 200-350°C, the airflow regulating part 221 expands, the aperture of the first pore a in the airflow regulating part 221 becomes smaller, and the smoke flow rate decreases;
[0027] When the temperature of the smoke flowing through the airflow regulating part 221 is less than 200-350°C, the airflow regulating part 221 does not deform and the smoke flow is normal. The airflow regulating part 221 expands when the smoke temperature is greater than what value, which is related to the selection of the thermal expansion material of the airflow regulating part 221, and the selection of the thermal expansion material of the airflow regulating part 221 is ultimately related to the heating curve of the cigarette. The specific selection method can refer to the selection method of the thermal expansion material mentioned above.
[0028] The airflow heating part 222 is made of heat storage material as a whole. When the airflow heating part 222 is heated, the heat storage material will store the heat. When the air contacts the heat storage material through the second air hole b, due to the temperature difference between the air and the heat storage material, the heat of the heat storage material will be transferred to the air flowing through, thereby heating the air.
[0029] The airflow regulating part 22 is made of a thermal expansion material as a whole. When hot air contacts the thermal expansion material through the first air hole a, due to the temperature difference between the hot air and the thermal expansion material, the hot air will transfer part of the heat energy to the thermal expansion material, and the temperature of the airflow regulating part 22 will increase. When the temperature reaches the expansion temperature of the thermal expansion material, the volume of the airflow regulating part 22 will increase. At the same time, due to the limiting effect of the shell 21 on the airflow regulating part 22, the airflow regulating part 22 as a whole is pushed inwardly, and the aperture of the first air hole a becomes smaller, thereby realizing the regulation of the hot air flow. The higher the hot air temperature, the more significant the thermal expansion, and the smaller the aperture of the first air hole a.
[0030] The present invention presets the heat storage temperature of the airflow heating unit 222 to 215-365°C, because different types of cigarettes have different heating temperatures to release sufficient smoke and suitable flavor substances, but the adapted heating temperatures of existing cigarettes are all in the range of 200-350°C. It has been found through experiments that when the heat storage temperature of the airflow heating unit 222 is preset to 5-15°C higher than the adapted heating temperature of the cigarette, the airflow heating unit 222 can continuously heat the air flowing through the second pore b to above the adapted heating temperature of the cigarette, and when the airflow temperature reaches a temperature greater than the adapted temperature of the cigarette, the airflow flow regulating unit 221 expands thermally, causing the aperture size of the first pore a to become smaller, thereby reducing the air flow, and finally reducing the smoke temperature by limiting the airflow flow. Accordingly, in order to prevent the airflow flow regulating unit 221 from affecting the inhalation resistance when adjusting the airflow, the aperture of the first pore a is designed to be slightly larger than the second pore b, and the aperture size difference between the two is optimal when it is 0.05-0.1mm. At the same time, in order to ensure the heating effect of the airflow heating part 222 on the airflow and avoid the airflow flow regulating part 221 affecting the suction resistance when adjusting the airflow, the number of the first air holes a and the second air holes b, calculated by the number of air holes on the cross section of the airflow heating regulating part 22, should be no less than 54.
[0031] The present invention has the following beneficial effects:
[0032] 1. The present invention replaces the traditional heating element with an airflow heating regulator, thereby solving the problem that the traditional heating element needs to continuously supply heat during the smoking process, which consumes a lot of energy, and the air around the heating element is continuously heated during the smoking interval, causing the smoke to burn the mouth.
[0033] 2. When using the smoking device heated by the present invention, the airflow heating part only needs to be heated for 10-30 seconds before the start of inhalation, so that the airflow heating part can reach the preset temperature, and electronic heating and electronic temperature control are no longer needed. During the entire process of subsequent cigarette inhalation, the airflow heating part will use the physical properties of the heat storage material to heat the smoke, and the airflow flow regulating part will use the thermal expansion effect of the thermal expansion material to regulate the smoke flow. Among them, the change in the size of the first pore can limit the smoke flow, thereby achieving the purpose of temperature control.
[0034] 3. The airflow heating regulator of the present invention is detachably connected to the cigarette accommodating chamber. The airflow heating regulator can be replaced at will for cigarettes with different heating curves. It is also convenient to clean the airflow channel and is easy to operate.
[0035] 4. The first air hole in the air flow regulating part and the second air hole in the air flow heating part of the present invention can also be a spiral or multi-rib structure to increase the contact area between the air flow and the heat storage material and the thermal expansion material. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] Figure 1 A schematic diagram of the assembly structure of an airflow heating and release regulating device and a cigarette receiving cavity is provided for Example 1
[0037] Figure 2 A schematic structural diagram of a longitudinal cross section of the airflow heating regulator provided in Example 1 when not in operation;
[0038] Figure 3 A schematic diagram of the longitudinal cross section of the housing is provided for Example 1
[0039] Figure 4 A schematic diagram of a longitudinal cross-sectional structure of a housing provided in Example 1
[0040] Figure 5 This is a schematic diagram of the structure of the heat-insulating partition of Example 1.
[0041] Figure 6 A schematic diagram of the longitudinal cross-section of the air flow heating regulator when the air flow regulating part undergoes thermal expansion during operation provided in Example 2
[0042] List of reference numerals:
[0043] 1. Cigarette accommodating chamber; 2. Airflow heating regulator; 21. Shell; 211. Through hole; 212. Partition; 213. Upper shell section; 214. Lower shell section; 22. Airflow heating regulating section; 221. Airflow flow regulating section; a. First air hole; 222. Airflow heating section; b- Second air hole; 3. Power supply; 4. Control main board; 5. Cigarette casing; 51. Heating indicator light; 6. Heating coil; A. Heating cigarettes. DETAILED DESCRIPTION
[0044] The content of the present invention is further explained below through specific implementation examples.
[0045] Example 1
[0046] like Figure 1-2 As mentioned above, Embodiment 1 provides a heat storage type heating smoking device, wherein an airflow heating and releasing device 2 is arranged below a cigarette receiving chamber 1 of the heating smoking device, and the cigarette receiving chamber 1 is connected to the airflow heating and releasing device 2;
[0047] The airflow heating and release device 2 is a honeycomb structure with a plurality of vents, and includes:
[0048] like Figure 3 The housing 21 shown is a cavity structure with through holes 211 provided on both end surfaces;
[0049] The airflow heating regulating part 22 is arranged inside the shell 21 and adapted to the cavity of the shell 21. The airflow heating regulating part 22 includes an upper airflow flow regulating part 221 and a lower airflow heating part 222. The airflow flow regulating part 221 and the airflow heating part 222 are respectively provided with a first pore a and a second pore b. The first pore a and the second pore b are connected to each other and to the through holes 211 on the two end surfaces of the shell 21. The material of the airflow flow regulating part 221 is an expanded graphite composite material, and the material of the airflow heating part 222 is a carbon nanotube / paraffin nanocomposite material. In this embodiment, the first pore a and the second pore b are both linear.
[0050] like Figure 4 As shown, the heating smoking device also includes a power supply 3, a control mainboard 4 and a smoking device shell 5. A heating indicator light 51 connected to the control mainboard 4 and the power supply is provided on the outer wall of the smoking device shell 5. The airflow heating regulator 2 is connected to the control mainboard 4 and the power supply. The power supply 3, the control mainboard 4, the cigarette accommodating cavity 1, and the airflow heating regulator 2 are all installed inside the smoking device shell 5. Some components such as the electromagnetic protection cover are already existing technologies and are not described in detail in this embodiment. The remaining conventional components of the heating smoking device refer to the existing technologies.
[0051] The airflow heating and release device 2 is detachably connected to the cigarette accommodating chamber 1 .
[0052] like Figure 3 As shown, the inner wall of the shell 21 is also provided with a heat-insulating partition 212 extending radially inward, as shown in FIG. Figure 5As shown, the heat-insulating partition 212 is specifically a circular ring, and the partition 212 divides the shell 21 into an upper shell section 213 and a lower shell section 214 that are interconnected. The airflow flow regulating part 221 is arranged in the upper shell section 21, and the airflow heating part 222 is arranged in the lower shell section 21.
[0053] The outer wall of the lower shell section 214 is wrapped with a heating coil.
[0054] Electromagnetic induction particles are evenly dispersed inside the airflow heating portion 222 .
[0055] Example 2
[0056] The present embodiment provides a method for using the heat storage type heating smoking device described in the embodiment, and the method for using is as follows: before starting to smoke, insert a heated cigarette A (the adapted heating temperature of cigarette A is 200° C.), start the power supply 3, and at the same time, the heating coil 6 starts to work, and the electromagnetic induction particles inside the airflow heating part 222 heat the airflow heating part, and the airflow heating part 222 is heated and stores heat. After heating for 15 seconds, the temperature sensor detects that the temperature of the airflow heating part 222 reaches 215° C. At this time, the control mainboard 4 controls the power supply to stop working, and the heating indicator light 51 goes out;
[0057] When the suction starts, the air enters from the bottom of the airflow heating regulating part 22. When the air flows through the airflow heating part 222 from the second air hole b, the heat storage material exchanges heat with the air synchronously, thereby heating the air. According to the measurement test, the air temperature is heated to 215°C by the heat storage material. Further, the heated hot air flows through the airflow regulating part 221 through the first air hole a. At this time, the thermal expansion material contacts the hot air.
[0058] like Figure 6 As shown, when the temperature of the smoke flowing through the airflow regulating part 221 is greater than 200° C., the airflow regulating part 221 expands, the aperture of the first pore a in the airflow regulating part 221 becomes smaller, and the smoke flow rate decreases;
[0059] When the temperature of the flue gas flowing through the airflow regulating part 221 is less than 350° C., the airflow regulating part 221 does not deform, and the flue gas flow is normal.
[0060] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A heat storage type heating smoking device, characterized in that: An airflow heating and releasing device (2) is arranged below the cigarette accommodating chamber (1) of the heating smoking device, and the cigarette accommodating chamber (1) is in communication with the airflow heating and releasing device (2); The airflow heating and release device (2) is a honeycomb structure with a plurality of vent holes, and comprises: The housing (21) is a cavity structure with through holes (211) provided on both end surfaces; An airflow heating regulating part (22) is arranged inside the shell (21) and is adapted to the cavity of the shell (21). The airflow heating regulating part (22) comprises an upper airflow flow regulating part (221) and a lower airflow heating part (222). A first air hole (a) and a second air hole (b) are respectively provided inside the airflow flow regulating part (221) and the airflow heating part (222). The first air hole (a) and the second air hole (b) are connected to each other and to the through holes (211) at the two end surfaces of the shell (21). The material of the airflow flow regulating part (221) is a thermal expansion material, and the material of the airflow heating part (222) is a heat storage material.
2. A heat storage type heating smoking device according to claim 1, characterized in that: The heating smoking device further comprises at least a power source (3), a control mainboard (4) and a smoking device housing (5); a heating indicator light (51) connected to the control mainboard (4) and the power source is arranged on the outer wall of the smoking device housing (5); the airflow heating regulator (2) is connected to the control mainboard (4) and the power source; the power source (3), the control mainboard (4), the cigarette accommodating cavity (1) and the airflow heating regulator (2) are all installed inside the smoking device housing (5).
3. The heat storage type heating smoking device according to claim 1, characterized in that: The airflow heating and release device (2) and the cigarette accommodating chamber (1) are detachably connected.
4. The heat storage type heating smoking device according to claim 1, characterized in that: The inner wall of the shell (21) is also provided with a heat-insulating partition (212) extending radially inward, and the partition (212) divides the shell (21) into an upper shell section (213) and a lower shell section (214) that are interconnected. The airflow regulating section (221) is arranged in the upper shell section (21), and the airflow heating section (222) is arranged in the lower shell section (21).
5. The heat storage type heating smoking device according to claim 1, characterized in that: The outer wall of the lower section (214) of the shell is wrapped with a heating coil.
6. The heat storage type heating smoking device according to claim 1, characterized in that: Electromagnetic induction particles are evenly dispersed inside the airflow heating portion (222).
7. The heat storage type heating smoking device according to claim 1, characterized in that: The heat storage material is one of a carbon nanotube / paraffin nanocomposite material, a porous metal foam reinforced paraffin, and a carbon nanotube / paraffin composite phase change material.
8. The heat storage type heating smoking device according to claim 1, characterized in that: The thermal expansion material is one of a composite material, a ceramic material and a metal material.
9. The heat storage type heating smoking device according to claim 1, characterized in that: The side wall of the airflow heating portion (222) is also connected to a temperature sensor.
10. A method for using the new energy-saving heating smoking device according to any one of claims 1 to 9, characterized in that: The method of use is as follows: before starting to smoke, the power supply (3) is started, and the heating coil (6) starts to work at the same time, the electromagnetic induction particles inside the airflow heating part (222) heat the airflow heating part, and the airflow heating part (222) is heated and stores heat, and when the temperature sensor detects that the temperature of the airflow heating part (222) reaches 215-365° C., the control mainboard (4) controls the power supply to stop working, and the heating indicator light (51) goes out; When suction begins, air enters from the bottom of the airflow heating regulating portion (22). When the air flows through the airflow heating portion (222) through the second air hole (b), the heat storage material simultaneously exchanges heat with the air, thereby heating the air. Further, the heated hot air flows through the airflow regulating portion (221) through the first air hole (a). At this time, the thermal expansion material comes into contact with the hot air. When the temperature of the smoke flowing through the airflow regulating portion (221) is greater than 200-350° C., the airflow regulating portion (221) expands, the aperture of the first pore (a) in the airflow regulating portion (221) decreases, and the smoke flow rate decreases; When the temperature of the smoke flowing through the airflow regulating portion (221) is less than 200-350° C., the airflow regulating portion (221) does not deform and the smoke flow is normal.