Miniaturized solid combustion aerosol generator and aerosol generation system

Abstract

The application discloses a miniaturized solid combustion aerosol generator and an aerosol generating system, which comprises a cabin main body provided with an air inlet pipe and an air outlet pipe, a cabin base and a combustion cage; the cabin main body is a double-layer sandwich barrel-shaped body composed of an inner cabin and an outer cabin, the cabin main body is reversely screwed on the cabin base in an open lower end mode, and the cabin main body and the cabin base form a combustion chamber; the combustion cage is a barrel-shaped metal mesh cage reversely screwed on the cabin base; the top of the combustion chamber is provided with a flow guide piece, the air inlet pipe is connected with the flow guide piece in sequence through the outer cabin and the inner cabin; the flow guide piece comprises an outer layer and an inner layer in a reverse funnel shape; the lower ends of the outer layer and the inner layer are connected to form an annular body, a plurality of jet holes of the air guiding cavities are uniformly distributed on the annular body in a ring shape; the air outlet pipe is arranged at the top of the outer cabin and is communicated with the sandwich cavity of the cabin main body; the advantages are simple structure and few components; the equipment is convenient to disassemble, transport and use; the airflow is uniform and stable, the combustion is stable, and the aerosol is stably generated and output.

Description

Technical Field

[0001] This invention relates to the technical field of aerosol generators, and more particularly to a miniaturized solid combustion aerosol generator that utilizes the fluidization characteristics of particulate matter generated by solid combustion to aerosolize it, thereby producing a small amount of aerosol required for experiments and used for research simulating workshop environments. Background Technology

[0002] Inhalable particulate matter in the air has a significant impact on environmental safety and human health, and has become a prominent problem of air pollution. Therefore, various institutions are vigorously promoting research in this area.

[0003] For suppliers specializing in alkaline batteries, one of the processes involved in producing positive electrode powder is the production of alkaline batteries. Aerosols are easily generated in the production workshop, posing certain safety hazards to equipment and personnel.

[0004] To address the aerosol problem in the alkaline battery production process, our company has assembled a dedicated team to study this issue. The research process requires simulating an aerosol environment, necessitating the use of an aerosol generator.

[0005] An aerosol generator is a device used to prepare aerosols for various aerosol research applications, such as the aggregation of smoke aerosols, the study of aerosol optical properties, and aerosol elimination.

[0006] Currently, most miniaturized solid combustion aerosol generators collect the particulate matter produced after solid combustion and then generate aerosols through airflow. These devices are complex in structure, bulky, and expensive, making them unsuitable for laboratory research.

[0007] For example, the patent document with authorization announcement number CN112999989B entitled "A Black Carbon Aerosol Generator" discloses a miniaturized solid combustion aerosol generator.

[0008] However, the miniaturized solid combustion aerosol generator in the aforementioned patent still suffers from complex structure and numerous components.

[0009] In addition, commercially available aerosol generators are expensive and require a large area, which is not suitable for our company's actual research and small-scale aerosol needs. Summary of the Invention

[0010] In view of the problems of complex structure, high price and large footprint of existing miniaturized solid combustion aerosol generators, the present invention provides a miniaturized solid combustion aerosol generator and aerosol generation system suitable for the laboratory, which is simple in structure and easy to disassemble, move and use.

[0011] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a miniaturized solid combustion aerosol generator, comprising a main body of a chamber, a base, and a combustion cage, which are provided with an inlet pipe and an outlet pipe;

[0012] The main body of the cabin is a double-layered sandwich barrel-shaped body composed of an inner cabin and an outer cabin, with a sandwich cavity formed between the inner cabin and the outer cabin.

[0013] The main body of the cabin is screwed onto the cabin seat with an open lower end, and the main body of the cabin and the cabin seat together form a combustion chamber;

[0014] The main body of the cabin is provided with an outlet that connects the combustion chamber and the interlayer cavity, and the outlet is close to the cabin seat;

[0015] The combustion cage is a barrel-shaped metal mesh cage that is screwed upside down onto the cabin, and the combustion cage is located in the combustion chamber;

[0016] The top of the combustion chamber is provided with a flow guide, and the intake pipe passes through the outer compartment and the inner compartment in sequence and is connected to the flow guide;

[0017] The flow guide includes an outer layer and an inner layer in the shape of an inverted funnel, with a funnel-shaped air guide cavity formed between the outer layer and the inner layer;

[0018] The lower ends of the outer layer and the inner layer are connected to form an annular body, and a number of jet holes that connect to the air guide cavity are evenly distributed in a ring on the annular body.

[0019] The upper end of the outer layer is provided with an upper opening that connects to the air guide cavity, and the upper opening of the air guide cavity is connected to the air intake cavity of the air intake pipe.

[0020] The vent pipe is located at the top of the outer cabin, and the vent pipe cavity is connected to the interlayer cavity.

[0021] A further preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the outer cabin includes an outer top wall and an outer peripheral wall, and the inner cabin includes an inner top wall and an inner peripheral wall;

[0022] The air intake pipe connects the outer top wall and the inner top wall to secure the inner and outer compartments.

[0023] The lower edges of the outer and inner peripheral walls are far apart from each other, and there is a gap between the lower end face of the inner peripheral wall and the upper surface of the cabin, thereby forming an annular flow port between the outer and inner peripheral walls.

[0024] A further preferred technical solution adopted by the present invention to solve the above-mentioned technical problem is as follows: the top of the outer cabin is also provided with a dilution pipe, which passes through the outer top wall of the outer cabin and connects to the interlayer cavity.

[0025] A further preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the cabin includes a bottom wall, an annular peripheral wall extending upward from the outer edge of the bottom wall, and an annular protrusion extending upward from the middle of the bottom wall;

[0026] The annular protrusion forms a storage section in the middle for placing solid combustibles and being enveloped by the combustion.

[0027] The inner wall of the annular peripheral wall is provided with a first internal thread, and the outer wall of the lower edge of the main body of the cabin is provided with a first external thread. The cabin seat is threadedly connected to the main body of the cabin.

[0028] The inner wall of the annular protrusion is provided with a second internal thread, and the outer wall of the lower edge of the combustion cage is provided with a second external thread. The chamber is threadedly connected to the combustion cage.

[0029] A further preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the air intake pipe includes a first pipe section located on the outside of the outer cabin and a second pipe section extending into the interlayer cavity;

[0030] The first pipe section is a pipe with a uniform inner diameter, and the second pipe section is a tapered pipe with an inner diameter that gradually increases from top to bottom;

[0031] The inner diameter of the upper end of the outer layer is the same as the inner diameter of the lower end of the second pipe section.

[0032] A further preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the outer cabin is provided with an annular observation window that connects to the interlayer cavity, and the observation window is provided with an annular quartz window in a sealed manner.

[0033] A further preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is that the outer cabin and the inner cabin are made of stainless steel.

[0034] A further preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: it further includes a fixing frame, the bottom of which is provided with a supporting bottom wall, and the middle of which is provided with a vertical fixing cavity perpendicular to the supporting bottom wall. The vertical fixing cavity is adapted to the assembly formed by connecting the cabin body and the cabin seat.

[0035] A further preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is that the outer ends of the air inlet pipe, the air outlet pipe and the dilution pipe are all provided with quick-connect interfaces.

[0036] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: an aerosol generation system, including a gas supply device and the miniaturized solid combustion aerosol generator;

[0037] The gas supply device includes a fan and a gas supply pipeline, and the gas supply pipeline is equipped with a flow and pressure controller.

[0038] The input end of the gas supply pipe is connected to the output end of the fan, and the output end of the gas supply pipe is connected to the air inlet pipe.

[0039] Compared with existing technologies, the advantages of this invention are: this miniaturized solid combustion aerosol generator only includes a main body, a base, and a combustion cage, resulting in a simple structure and fewer components. Furthermore, the main body and base, as well as the base and combustion cage, all employ quick-release screw connections, facilitating not only disassembly, maintenance, and transportation, but also ease of use and operation. In addition, a funnel-shaped jacketed flow guide ensures that the introduced compressed air is evenly diffused in a ring, guaranteeing airflow stability. The annular body and evenly distributed jet orifices further ensure airflow uniformity. When a stable and balanced airflow acts on the combustible material and its smoke, it not only ensures continuous and stable combustion but also guarantees uniform smoke diffusion and the formation of a uniform aerosol through uniform combination with the smoke.

[0040] This invention has low manufacturing cost and small footprint, making it suitable for producing small quantities of aerosols for experimental research. The aerosol generation system incorporating this miniaturized solid combustion aerosol generator allows for the regulation of aerosol concentration, particle size, and flow rate within a certain range by adjusting the flow rate and pressure of the inlet gas. Consequently, the concentration, particle size, and flow rate of the generated aerosol can vary over a wide range. Attached Figure Description

[0041] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0042] Figure 1 This is a schematic diagram of a gas supply device according to a preferred embodiment of the present invention;

[0043] Figure 2 This is a schematic diagram of a miniaturized solid combustion aerosol generator according to a preferred embodiment of the present invention;

[0044] Figure 3 This is a cross-sectional view of a miniaturized solid combustion aerosol generator according to a preferred embodiment of the present invention;

[0045] Figure 4 This is an exploded view of a miniaturized solid combustion aerosol generator according to a preferred embodiment of the present invention;

[0046] Figure 5 This is an exploded view of a miniaturized solid combustion aerosol generator according to a preferred embodiment of the present invention;

[0047] Figure 6 This is a schematic diagram of an intake pipe and a flow guide according to a preferred embodiment of the present invention. Detailed Implementation

[0048] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of the invention.

[0049] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0050] This embodiment discloses an aerosol generation system, which includes an aerosol supply device 100 and a miniaturized solid combustion aerosol generator 200.

[0051] like Figure 1 As shown, the gas supply device 100 includes a fan 101 and a gas supply pipe 102. The gas supply pipe 102 is equipped with a flow and pressure controller 11. The input end of the gas supply pipe 102 is connected to the output end of the fan 101, and the output end of the gas supply pipe 102 is connected to the air inlet pipe 24 of the miniaturized solid combustion aerosol generator 200 to realize gas supply.

[0052] like Figure 1 As shown, the fan 101 includes a battery 13, a motor 14, and fan blades 15. The battery 13 provides power, and the motor 14 drives the fan blades 15. The rotation of the fan blades 15 guides, accelerates, and pressurizes the airflow. The air supply duct 102 includes a horizontally arranged transverse section, with the output end of the fan 101 connected to the middle section of the transverse section. The front end of this transverse section is a first quick-connect interface S1, which can be connected to other external air sources or closed. The transverse section is provided with several control interfaces for connecting to the flow and pressure controller 11, as well as detection interfaces for connecting the flow detector 12 and the pressure detector 16. The rear end of this transverse section is a second quick-connect interface S2 for connecting to a miniaturized solid combustion aerosol generator 200 or other aerosol generators.

[0053] like Figure 2-3As shown, the miniaturized solid combustion aerosol generator 200 includes a main body 201, a base 202, and a combustion cage 203. The main body 201 is a double-layered, sandwich-type barrel-shaped body composed of an inner chamber 21 and an outer chamber 22, forming a sandwich cavity Y between the inner chamber 21 and the outer chamber 22. That is, the outer chamber 22 and the inner chamber 21 are coaxially fitted together, with the outer chamber 22 on the outside and the inner chamber 21 on the inside. At any given height, the inner diameter of the cross-section of the outer chamber 22 is larger than the outer diameter of the cross-section of the inner chamber 21, and there is a gap between the inner wall of the outer chamber 22 and the outer wall of the inner chamber 21, thus forming a hollow sandwich, also known as the sandwich cavity Y, between the outer chamber 22 and the inner chamber 21. It should be noted that there are various ways to fix the outer chamber 22 and the inner chamber 21 together. They can be connected by several connecting ribs, or the outer chamber 22 and the inner chamber 21 can be connected to each other at the bottom, or they can be connected together by combining other components. However, it is necessary to ensure that the entire interlayer cavity Y is interconnected and to minimize the obstruction to airflow or aerosols.

[0054] like Figure 2-3 As shown, the main body 201 is screwed upside down onto the base 202 with its lower end open. The main body 201 and the base 202 together form the combustion chamber M. The combustion cage 203 is a barrel-shaped metal mesh cage that is upside down connected to the base 202 and is located inside the combustion chamber M. The surface of the base 202 covered by the combustion cage 203 forms a storage section N for placing combustibles. Smoke generated by the combustion of solid combustibles diffuses into the combustion chamber M through the mesh of the combustion cage 203.

[0055] A flow guide 23 is provided at the top of the combustion chamber M, and the intake pipe 24 passes through the outer compartment 22 and the inner compartment 21 in sequence and connects to the flow guide 23. The combustion chamber M is sealed at the top from the interlayer cavity Y. Compressed air enters the combustion chamber M from the intake pipe 24 through the flow guide 23.

[0056] like Figure 3-6 As shown, the flow guide 23 includes an outer layer 231 and an inner layer 232 in the shape of an inverted funnel, with a funnel-shaped air guide cavity H formed between the outer layer 231 and the inner layer 232. The lower ends of the outer layer 231 and the inner layer 232 are connected to form an annular body 233, and a plurality of jet holes J communicating with the air guide cavity H are evenly distributed in a ring on the annular body 233. The upper end of the outer layer 231 is provided with an upper opening communicating with the air guide cavity H, and the upper opening of the air guide cavity H is connected to the air intake cavity of the air intake pipe 24.

[0057] It should be noted that the funnel-shaped guide 23 ensures that the compressed air introduced from the intake pipe 24 is evenly diffused in an annular pattern, and can moderately reduce the gas velocity, ensuring the stability of the airflow. Furthermore, the annular body 233 and the annularly distributed jet holes J further guarantee the balance of the airflow.

[0058] When a stable and balanced airflow acts on the combustible material and the smoke it produces, it not only ensures the continuous and stable combustion, but also ensures the uniform diffusion of the smoke and the uniform combination of the airflow and the smoke to form a uniform aerosol.

[0059] And, as Figure 3 As shown, the main body 201 of the cabin is provided with an outlet F that connects the combustion chamber M and the interlayer cavity Y, and the outlet F is close to the cabin seat 202. The exhaust pipe 25 is located on the top of the outer cabin 22, and the exhaust pipe 25 cavity of the exhaust pipe 25 connects to the interlayer cavity Y.

[0060] During use, firstly, a solid is placed in the storage section N of the compartment 202 and ignited to form a combustible material, or a pre-ignited solid combustible material is directly placed in the storage section N; then, the combustion cage 203 is connected upside down to the compartment 202, and the ventilated main body 201 is connected to the compartment 202. Compressed air is evenly applied to the combustible material and the smoke it produces through the guide 23. The aerosol formed by the combination of smoke and compressed air enters the interlayer cavity Y from the bottom through the flow port F under the action of the downward airflow, and moves upward with the airflow in the interlayer cavity Y, finally being discharged from the exhaust pipe 25. Thus, the miniaturized solid combustion aerosol generator 200 realizes the solid combustion aerosol generation process.

[0061] like Figure 3 , 5 As shown, the outer compartment 22 includes an outer top wall 221 and an outer peripheral wall 222, and the inner compartment 21 includes an inner top wall 211 and an inner peripheral wall 212. The inner surface of the outer top wall 221 is always away from the outer surface of the inner top wall 211, and the inner surface of the outer peripheral wall 222 is always away from the outer surface of the inner peripheral wall 212. The air intake pipe 24 connects the outer top wall 221 and the inner top wall 211 to fix the inner compartment 21 and the outer compartment 22. The lower edges of the outer peripheral wall 222 and the inner peripheral wall 212 are far apart from each other, and there is a gap between the lower end face of the inner peripheral wall 212 and the upper surface of the compartment 202, thereby forming an annular flow port F between the outer peripheral wall 222 and the inner peripheral wall 212.

[0062] Therefore, the annular flow port F ensures that aerosols can smoothly enter the interlayer cavity Y from all directions, avoiding aerosol loss due to bends and collisions. There is almost no obstruction between the flow port F and the inlet of the outlet pipe 25 in the interlayer cavity Y, ensuring smooth airflow and aerosol transport.

[0063] like Figure 3-5 As shown, the cabin 202 includes a bottom wall 31, an annular peripheral wall 32 extending upward from the outer edge of the bottom wall 31, and an annular protrusion 33 extending upward from the middle of the bottom wall 31. A storage section N for placing solid combustibles and covered by the combustion cage 203 is formed in the middle of the annular protrusion 33.

[0064] The inner wall of the annular peripheral wall 32 is provided with a first internal thread C1, and the outer wall of the lower edge of the chamber body 201 is provided with a first external thread C2. The chamber seat 202 is threadedly connected to the chamber body 201. The inner wall of the annular protrusion 33 is provided with a second internal thread C3, and the outer wall of the lower edge of the combustion cage 203 is provided with a second external thread C4. The chamber seat 202 is threadedly connected to the combustion cage 203. Through threaded connections, quick disassembly and assembly of the generator are achieved, facilitating laboratory use.

[0065] like Figure 6 As shown, the air intake pipe 24 includes a first pipe section 241 located outside the outer compartment 22 and a second pipe section 242 extending into the interlayer cavity Y; the first pipe section 241 is a uniform diameter pipe with a consistent inner diameter, and the second pipe section 242 is a tapered pipe with an inner diameter that gradually increases from top to bottom; the inner diameter of the upper end of the outer layer 231 is the same as the inner diameter of the lower end of the second pipe section 242. The increased diameter allows for the adjustment of the airflow velocity and also facilitates docking with the guide component 23.

[0066] Preferably, the outer compartment 22 and the inner compartment 21 are made of stainless steel. The outer compartment 22 is provided with an annular observation window that connects to the interlayer cavity Y, and an annular quartz window G is sealed at the observation window to facilitate observation of the combustion state. Of course, the shape of the observation window and the quartz window does not necessarily have to be annular; they can be formed into different shapes as needed. However, the annular arrangement allows observation of the internal state from various angles, which is more conducive to monitoring the aerosol formation state.

[0067] Based on this, observation windows and quartz windows can also be set on the inner compartment 21, so that the combustion status of the combustion chamber M can be directly observed from the outside.

[0068] like Figure 3 , 5 As shown, a dilution pipe 26 is also provided on the top of the outer compartment 22, which passes through the outer top wall 221 of the outer compartment 22 and connects to the interlayer cavity Y. The dilution pipe 26 is used to further introduce compressed air into the interlayer cavity Y, which can dilute the concentration of aerosols and further provide the driving force for aerosol flow. It should be noted that in this embodiment, the air inlet pipe 24 is located at the center of the compartment, and the air outlet pipe 25 and the dilution pipe 26 are located on both sides of the air inlet pipe 24. Preferably, the dilution pipe 26 is fixed at an angle so that the initial direction of airflow is towards the air outlet pipe 25. Preferably, a plug P can be fitted over the dilution pipe 26 to seal the dilution pipe 26 when no gas is flowing through it.

[0069] like Figure 4 As shown, the outer end of the air inlet pipe 24 is provided with a third quick-connect interface S3, which is adapted to and connected to the second quick-connect interface S2 of the air supply device 100. In addition, the air outlet pipe 25 and the dilution pipe 26 are also provided with quick-connect interfaces, so that the experimental device can be connected to the corresponding air source device.

[0070] In addition, the miniaturized solid combustion aerosol generator 200 also includes a mounting frame (not shown in the figure). The bottom of the mounting frame is provided with a supporting bottom wall, and the middle of the mounting frame is provided with a vertical fixing cavity perpendicular to the supporting bottom wall. The vertical fixing cavity is adapted to the assembly formed by connecting the main body 201 and the seat 202, so that the entire instrument is always in a vertically stable state to maintain stability during the combustion process.

[0071] The miniaturized solid combustion aerosol generator 200 and aerosol generation system provided in this embodiment can regulate the concentration, particle size, and flow rate of the aerosol within a certain range by adjusting the flow rate and pressure of the inlet gas. The generated aerosol exhibits a wide range of concentration, particle size, and flow rate variations. Furthermore, the overall aerosol flow rate is large. The overall device is also small in size, simple in structure, easy to assemble and disassemble, and convenient to move and operate, meeting the requirements of laboratory experiments.

[0072] The miniaturized solid combustion aerosol generator and aerosol generation system provided by this invention have been described above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are only for the purpose of helping to understand this invention and its core ideas. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A miniaturized solid combustion aerosol generator, characterized in that The cabin body is a double-layer sandwich barrel-shaped body composed of an inner cabin and an outer cabin, and a sandwich cavity is formed between the inner cabin and the outer cabin. The cabin body is reversely screwed on the cabin seat in an open lower end manner, and the cabin body and the cabin seat form a combustion chamber. The combustion cage is a barrel-shaped metal mesh cage reversely screwed on the cabin seat, and the combustion cage is located in the combustion chamber. The top of the combustion chamber is provided with a flow guide, and the air inlet pipe is connected to the flow guide in sequence through the outer cabin, the inner cabin, and the flow guide. The flow guide includes an outer layer and an inner layer in the shape of a reverse funnel, and a funnel-shaped air guide cavity is formed between the outer layer and the inner layer. The lower end of the outer layer and the inner layer is connected to form an annular body, and a plurality of air injection holes are uniformly distributed on the annular body and connected to the air guide cavity.

2. The miniaturized solid combustion aerosol generator according to claim 1, characterized in that The upper end of the outer layer is provided with an upper opening connected to the air guide cavity, and the upper opening of the air guide cavity is connected to the air inlet pipe cavity of the air inlet pipe. The outer cabin includes an outer top wall and an outer peripheral wall, and the inner cabin includes an inner top wall and an inner peripheral wall. The air inlet pipe connects the outer top wall and the inner top wall to fix the inner cabin and the outer cabin.

3. The miniaturized solid combustion aerosol generator of claim 1, wherein The lower edge of the outer peripheral wall and the inner peripheral wall is away from each other, and there is a gap between the lower end surface of the inner peripheral wall and the upper surface of the cabin seat, so that an annular overflow port is formed between the outer peripheral wall and the inner peripheral wall.

4. The miniaturized solid combustion aerosol generator of claim 1, wherein The top of the outer cabin is also provided with a dilution pipe which passes through the outer top wall of the outer cabin and is connected to the sandwich cavity. The cabin seat includes a bottom wall, an annular peripheral wall extending upward from the outer edge of the bottom wall, and an annular protrusion extending upward from the middle of the bottom wall. The middle of the annular protrusion forms a storage part for storing solid combustible materials and is covered by the combustion cage. The inner wall of the annular peripheral wall is provided with a first inner thread, and the outer wall of the lower edge of the cabin body is provided with a first outer thread.

5. The compact solid combustion aerosol generator of claim 1, wherein The inner wall of the annular protrusion is provided with a second inner thread, and the outer wall of the lower edge of the combustion cage is provided with a second outer thread. The air inlet pipe includes a first pipe section located outside the outer cabin and a second pipe section extending into the sandwich cavity. The first pipe section is a constant diameter pipe with a consistent inner diameter, and the second pipe section is a tapered pipe with an inner diameter gradually increasing from top to bottom.

6. The compact solid combustion aerosol generator of claim 1, wherein The inner diameter of the upper end of the outer layer is consistent with the inner diameter of the lower end of the second pipe section.

7. The compact solid combustion aerosol generator of claim 1, wherein An annular observation window is provided on the outer cabin and connected to the sandwich cavity.

8. The compact solid combustion aerosol generator of claim 1, wherein The outer cabin and the inner cabin are made of stainless steel.

9. The miniaturized solid combustion aerosol generator of claim 3, wherein The fixing frame is also provided, and the bottom of the fixing frame is provided with a support bottom wall.

10. An aerosol generating system, characterised in that The outer ends of the air inlet pipe, the air outlet pipe, and the dilution pipe are provided with quick connectors. The gas supply device and the miniaturized solid combustion aerosol generator are provided. The air supply device comprises a fan and an air supply pipeline, wherein a flow pressure controller is arranged on the air supply pipeline. The input end of the air supply pipeline is connected with the output end of the fan, and the output end of the air supply pipeline is connected with the air inlet pipe.

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