Aerosol generating device based on air injection spraying and purging principle and control method

Abstract

The invention belongs to the technical field of aerosol application, and particularly relates to an aerosol generating device based on the air injection spraying and purging principle and a control method. The device comprises a melting cabin, a mixing cabin and a control system. Wherein the melting cabin comprises a melting cabin body, a heating pipe, an air inlet, an aerosol outlet, a feeding opening, a reagent discharging opening and an oil discharging opening. The mixing cabin comprises a mixing cabin body, an aerosol inlet, a diluent gas inlet, an aerosol mixing channel and a circulating cooling channel. And the aerosol outlet of the melting cabin is connected with the aerosol inlet of the mixing cabin through a pipeline. The control system controls the temperature and the gas flow in the melting cabin and parameters such as the aerosol concentration, the diluent gas flow and the aerosol flow in the mixing cabin, and control over the aerosol concentration, the temperature and the humidity is achieved. The device adopts integrated control, is simple and convenient to operate, safe and efficient, and can be used for aerosol generation and control of liquid reagents formed by melting various liquid reagents or solid reagents.

Description

Technical Field

[0001] The invention belongs to the technical field of aerosol application, and in particular relates to an aerosol generating device and a control method utilizing the air-injected spraying and sweeping principle. Background Art

[0002] With the continuous upgrading of aerosol devices, various types of aerosol generating devices are being used more and more widely. At the same time, the application of aerosols in the military field is becoming more and more in-depth. In recent years, with the turbulence of the international situation, anti-riot ammunition has caused little permanent damage to the human body and has a strong dispersing effect. It is widely used in anti-terrorism, anti-riot, stability maintenance and emergency response operations in various countries around the world. However, it has also led to an increasing number of reports on the use of anti-riot ammunition (such as irritants), and personal injury accidents have also shown an increasing trend year by year. The safe use, injury mechanism and protection of anti-riot ammunition (such as irritants) have attracted much attention.

[0003] Irritants are a type of poison that stimulates the eyes, nasopharyngeal mucosa or skin, causing severe eye pain and tears, constant coughing and sneezing, or severe skin pain as the main symptoms of poisoning. In combat, irritants usually form aerosol clouds through dispersion methods such as combustion, explosion, and spraying, which cause strong irritation to the eyes, nose, respiratory tract and skin of the target, causing various adverse reactions such as tears, sneezing, runny nose, and coughing, which has a dispersing effect. Typical equipment representatives include various types of explosive and incendiary tear gas bombs, solution sprayers, etc. However, the current use of these equipment or devices for irritant injury mechanism and protection research still has the following problems:

[0004] 1. During the process of explosion or combustion to form irritant aerosol, the irritant decomposes and produces other organic compounds due to instantaneous high temperature, thus interfering with the research on the damage mechanism and protection of irritants;

[0005] 2. The loud noise, light, and heat generated by the explosion or combustion may cause the test subjects to be frightened, which may interfere with the research on the injury mechanism and protection of the test subjects;

[0006] 3. In the process of forming irritant aerosol by spray dispersion, a large amount of organic solvents are required, which may also affect the test subjects and interfere with the irritation injury mechanism and protection research;

[0007] 4. In the process of forming irritant aerosols through dispersion methods such as combustion, explosion, and spraying, it is difficult to accurately control the solubility of the irritant, which is not conducive to the research on the mechanism and protection of irritant damage. Summary of the invention

[0008] 1. Technical issues to be resolved

[0009] The present invention provides a device and a control method for efficiently and safely forming an aerosol by utilizing the air-injected spray and purge principle.

[0010] Air-injection spray dispersion is to spray liquid reagents or reagents melted into liquids (such as irritants) through compressed air nozzles to form airflow injection, suck the reagents from below and then spray them out from the nozzles with air to form aerosols in the chamber; air-purge dispersion is to form aerosols by sweeping the surface of liquid reagents through air guide ports with compressed air; finally, the aerosols enter the mixing chamber from the outlet of the melting chamber, and the temperature, humidity and concentration of the aerosols are controlled in the mixing chamber by circulating cooling and gas dilution. The device can control the concentration of aerosols in the melting chamber by controlling the pressure and flow of compressed air entering the melting chamber, the temperature of the reagents and the dispersion principle through a control system. At the same time, the temperature of the aerosols in the mixing chamber can be adjusted by circulating cooling, and the humidity and concentration of the aerosols can be further controlled by dilution, thereby achieving precise control of aerosol generation. For example, the device can be used for the generation and control of irritant aerosols, for the study of irritant damage mechanisms and protection tests, and solves the problem of interference with the damage mechanism and protection test of irritant aerosols formed by dispersion methods such as combustion, explosion and spraying.

[0011] (II) Technical solution

[0012] In order to solve the above technical problems, the present invention proposes a generating device, which utilizes the air-injected spray and purge principle to efficiently and safely form an aerosol generating device and a control method, which can be used to generate and control irritant aerosols and to study the mechanism and protection of irritant damage.

[0013] The technical solution adopted by the present invention is as follows:

[0014] In a first aspect, the present invention provides an aerosol generating device, comprising a melting chamber, a mixing chamber and a control system;

[0015] The melting chamber comprises a melting chamber body 1, a heating tube 2, an air-injection spray generating air inlet 3, an air-purge generating air inlet 4, an aerosol outlet 5, a reagent feeding port 6, an oil bath feeding port 7 and a discharge port 12; the air-injection spray generating air inlet 3 and the air-purge generating air inlet 4 are respectively connected to an external air source and a flow controller;

[0016] The melting chamber body 1 adopts an inner and outer cavity design, including an outer cavity 1-1, an inner cavity 1-2, a reagent drain port 1-3, and a top cover 1-4; the outer cavity 1-1 is wrapped outside the inner cavity 1-2, and a reagent drain port 1-3 is provided at the bottom of the inner cavity 1-2 and passes through the bottom of the outer cavity 1-1; the reagent drain port 1-3 is used to discharge the remaining reagent after the test is completed or when the reagent needs to be replaced, and to clean the inner cavity and discharge the cleaning agent;

[0017] The outer cavity 1-1 is a heating oil bath cavity. The heating tubes 2 evenly distributed in the outer cavity 1-1 heat the oil bath medium. An oil bath feeding port 7 is arranged on the top cover 1-4 above the outer cavity 1-1, and exhaust microholes are arranged on the sealing cover of the oil bath feeding port 7 to ensure the pressure balance in the oil bath cavity during the temperature change process; a discharge port 12 is arranged on the side of the outer cavity 1-1 to drain the oil bath medium and clean the oil bath cavity; an oil sensor monitoring device is arranged in the outer cavity 1-1; an oil bath sensor monitoring device is arranged in the outer cavity 1-1;

[0018] The inner cavity 1-2 is a reagent melting cavity, and the top cover 1-4 above the inner cavity 1-2 is provided with an air injection spray generating air inlet 3, an air purge generating air inlet 4, an aerosol outlet 5, and a reagent feeding port 6; a reagent sensor monitoring device is provided in the inner cavity 1-2;

[0019] The end of the pipe of the air-injection spray generating air inlet 3 is located above the bottom of the inner cavity 1-2 and leaves a gap, and a plurality of micro-hole nozzles are arranged on the side of the pipe; the end of the pipe of the air-purge generating air inlet 4 is located above the inner cavity 1-2; the aerosol dispersion principle is selected according to the test needs to realize the switching of the two aerosol generating modes of air-injection spray dispersion and air-purge dispersion;

[0020] The mixing chamber includes a mixing chamber body 13, an aerosol inlet 14, a dilution gas inlet 15, an aerosol mixing channel 16, and a circulating cooling channel 18; the melting chamber aerosol outlet 5 is connected to the mixing chamber aerosol inlet 14 through a pipeline;

[0021] The mixing chamber body 13 adopts a jacketed structure, and the outer jacket is a circulating cooling channel 18 for aerosol temperature control; the inner cavity is an aerosol channel 16, and an aerosol inlet 14 and a dilution gas inlet 15 are provided on one side, which are respectively connected to the melting chamber aerosol outlet 5 and the dilution gas source; a dilution aerosol outlet 17 is provided on the opposite side of the aerosol channel for aerosol output;

[0022] The melting chamber, mixing chamber and control system are communicatively connected.

[0023] Preferably, an oil bath level gauge 10 and an oil bath thermometer 11 are also provided on the top cover 1 - 4 above the outer cavity 1 - 1 for monitoring the oil level and temperature.

[0024] Preferably, the top cover 1 - 4 above the inner cavity 1 - 2 is also provided with a reagent level meter 8 and a reagent thermometer 9 for monitoring the reagent level and temperature.

[0025] Preferably, a flow disturbance plate 19 is provided inside the aerosol passage 16 to accelerate the rapid mixing of the aerosol in the cabin.

[0026] Furthermore, the spoilers 19 are respectively arranged behind the inlet and in front of the outlet of the aerosol channel 16 .

[0027] Preferably, an aerosol concentration, temperature and humidity sensor 20 is provided on the end surface of the mixing chamber body 13 and is connected to the control system.

[0028] Preferably, the control system includes a computer, a detection circuit, a control circuit, a communication interface, and an electrical interface; wherein the control system is connected to the sensors and controllers of the melting chamber and the mixing chamber through the control circuit to achieve aerosol generation in the melting chamber and temperature, humidity, and concentration control of the aerosol in the mixing chamber.

[0029] Preferably, the reagent of the present invention comprises a mixed material of one or more irritants selected from o-chlorobenzylidenemalononitrile (CS), n-nonanoic acid vanillamide (capsaicin OC), and dibenzo-1,4-oxazepine (CR).

[0030] In a second aspect, the present invention provides a method for using the aerosol generating device according to the first aspect, comprising the following steps:

[0031] S1: The reagent temperature T1, aerosol concentration C1, aerosol temperature T2 and humidity R1 required for the test are set in the control system;

[0032] S2: Start the heating tube 2 to heat the oil bath, use the oil bath to heat the reagent, monitor the temperature of the oil bath and the reagent; determine whether the melting cavity reagent temperature sensor reaches the set reagent temperature T1;

[0033] If the temperature is not reached, the heating tube is controlled to continue heating;

[0034] If the temperature is reached, proceed to step S3;

[0035] S3: Control and start the flow controller to pass the air V1 into the melting chamber through the air inlet to form an aerosol;

[0036] S4: The aerosol enters the mixing chamber through the pipeline, and the aerosol concentration C2, temperature T2 and humidity R3 in the mixing chamber are monitored;

[0037] S5: Determine whether the aerosol concentration C2, temperature T2 and humidity R3 in the mixing chamber match the set aerosol concentration C1, aerosol temperature T2 and humidity R1;

[0038] If so, the temperature of the reagent in the melting chamber, the air flow rate V1 and the generation mode, the dilution gas flow rate and humidity in the mixing chamber, and the cooling cycle temperature are stably controlled to ensure stable aerosol generation;

[0039] If not, control is performed according to the following situations:

[0040] 1) The aerosol concentration does not match, and the concentration in the melting chamber and the flow rate of the dilution gas are controlled to adjust the aerosol concentration;

[0041] 2) Aerosol temperature does not match, control the circulating coolant temperature to adjust the aerosol temperature;

[0042] 3) Aerosol humidity does not match, control and adjust the dilution gas humidity R2, and adjust the aerosol humidity;

[0043] Ultimately, the aerosol concentration C2, temperature T2 and humidity R3 in the mixing chamber are matched with the set aerosol concentration C1, aerosol temperature T2 and humidity R1.

[0044] Preferably, in step S3, there are two modes: air-injection spray dispersion mode and air-purge dispersion mode:

[0045] Air-injection spray dispersion method: used to generate high-concentration aerosols. By passing compressed air under the liquid surface, the Bernoulli principle is used to draw the liquid reagent below into the spray nozzle through the airflow injection effect, and the aerosol is formed through the spray nozzle. The concentration of the generated aerosol is controlled by adjusting the flow rate, pressure and reagent temperature of the compressed air.

[0046] Air purge dispersion method: used to generate low-concentration aerosols. Compressed air is blown above the liquid surface to allow the air to purge the liquid reagent surface and take out the evaporated aerosol air. The concentration of the generated aerosol is controlled by adjusting the air flow and the temperature of the liquid reagent.

[0047] Beneficial effects achieved by the present invention:

[0048] The generating device and control method of the present invention have a uniform heating mode in the melting chamber and a controllable temperature, which prevents the reagent (such as irritant) from decomposing at high temperature to generate other organic compounds during the process of forming an aerosol. The aerosol component is single, which can avoid the interference of other compounds on the damage mechanism and protection research of the irritant; the mixing chamber can realize the precise control and adjustment of the aerosol temperature, humidity and concentration, and can meet the needs of different aerosol concentrations; the control system is highly integrated and easy to operate; at the same time, the generating device is used to generate irritant aerosol, with high utilization rate, no pyrotechnic components, good safety performance, and can be expanded to military training, key security points and other fields for promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a schematic diagram of the melting chamber structure of the present invention.

[0050] (a) 3D image (b) cross-sectional image;

[0051] Figure 2 This is a schematic diagram of the principle of forming aerosol by air-injected spray dispersion in the melting chamber of the present invention.

[0052] Figure 3 This is a schematic diagram of the principle of forming aerosol by air blowing and dispersion in the melting chamber of the present invention.

[0053] Figure 4 This is a schematic diagram of the structure of the mixing cabin of the present invention;

[0054] (a) 3D image (b) cross-sectional image;

[0055] Figure 5 This is a control flow chart of the aerosol generating device control method of the present invention.

[0056] Figure 6 This is a schematic structural diagram of the aerosol generating device of the present invention. DETAILED DESCRIPTION

[0057] In order to make those skilled in the art more clear and understand the aerosol generating device and control method using the air-injected spray and purge principle proposed in the present invention, the present invention is further described in detail below in conjunction with the embodiments. Taking the irritant (o-chlorobenzylmalononitrile) as an example, the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0058] Example 1

[0059] like Figures 1 to 4 and Figure 6 As shown, an aerosol generating device includes a humidity generating unit, a refrigeration unit, an air source device, a melting chamber, a mixing chamber and a control system;

[0060] The melting chamber comprises a melting chamber body 1, a heating tube 2, an air-injection spray generating air inlet 3, an air-purge generating air inlet 4, an aerosol outlet 5, a reagent feeding port 6, an oil bath feeding port 7 and a discharge port 12; the air-injection spray generating air inlet 3 and the air-purge generating air inlet 4 are respectively connected to an external air source device and a flow controller;

[0061] The melting chamber body 1 adopts an inner and outer cavity design, including an outer cavity 1-1, an inner cavity 1-2, a reagent drain port 1-3, and a top cover 1-4; the outer cavity 1-1 is wrapped outside the inner cavity 1-2, and a reagent drain port 1-3 is provided at the bottom of the inner cavity 1-2 and passes through the bottom of the outer cavity 1-1; the reagent drain port 1-3 is used to discharge the remaining reagent after the test is completed or when the reagent needs to be replaced, and to clean the inner cavity and discharge the cleaning agent;

[0062] The outer cavity 1-1 is a heated oil bath cavity. The heating tubes 2 evenly distributed in the outer cavity 1-1 heat the oil bath medium. An oil bath feeding port 7 is arranged on the top cover 1-4 above the outer cavity 1-1, and exhaust microholes are arranged on the sealing cover of the oil bath feeding port 7 to ensure the pressure balance in the oil bath cavity during the temperature change process; a discharge port 12 is arranged on the side of the outer cavity 1-1 for draining the oil bath medium and cleaning the oil bath cavity; an oil sensor monitoring device is arranged in the outer cavity 1-1; an oil bath level gauge 10 and an oil bath thermometer 11 are also arranged on the top cover 1-4 above the outer cavity 1-1 for monitoring the oil bath level and temperature.

[0063] The inner cavity 1-2 is a reagent melting cavity, and an air-injection spray generating air inlet 3, an air-purge generating air inlet 4, an aerosol outlet 5, and a reagent feeding port 6 are arranged on the top cover 1-4 above the inner cavity 1-2; a reagent sensor monitoring device is arranged in the inner cavity 1-2; a reagent level meter 8 and a reagent thermometer 9 are also arranged on the top cover 1-4 above the inner cavity 1-2 for monitoring the reagent level and temperature.

[0064] The end of the pipe of the air-injection spray generating air inlet 3 is located above the bottom of the inner cavity 1-2 and leaves a gap, and a plurality of micro-hole nozzles are arranged on the side of the pipe; the end of the pipe of the air-purge generating air inlet 4 is located above the inner cavity 1-2; the aerosol dispersion principle is selected according to the test needs to realize the switching of the two aerosol generating modes of air-injection spray dispersion and air-purge dispersion;

[0065] The mixing chamber includes a mixing chamber body 13, an aerosol inlet 14, a dilution gas inlet 15, an aerosol mixing channel 16, and a circulating cooling channel 18; the melting chamber aerosol outlet 5 is connected to the mixing chamber aerosol inlet 14 through a pipeline;

[0066] The mixing chamber body 13 adopts a jacketed structure, and the outer jacket is a circulating cooling channel 18 for aerosol temperature control; the internal cavity is an aerosol channel 16, and one side is provided with an aerosol inlet 14 and a dilution gas inlet 15, which are respectively connected to the melting chamber aerosol outlet 5 and the dilution gas source; the opposite side of the aerosol channel is provided with a dilution aerosol outlet 17 for aerosol output; a spoiler 18 is provided inside the aerosol channel 16 to accelerate the rapid mixing of the aerosol in the chamber, and the spoiler 18 is respectively provided behind the inlet and in front of the outlet of the aerosol channel 16. The end surface of the mixing chamber body 13 is provided with an aerosol concentration, temperature, and humidity sensor 20, which is connected to the control system.

[0067] The refrigeration unit is connected to the circulating cooling channel 18 for cooling.

[0068] The air source device is connected to the humidity generating unit, and the humidity generating unit is connected to the dilution gas inlet 15 .

[0069] The control system includes a computer, a detection circuit, a control circuit, a communication interface, and an electrical interface; wherein the control system is connected to the sensors and controllers of the melting chamber and the mixing chamber through the control circuit to achieve aerosol generation in the melting chamber and temperature, humidity, and concentration control of the aerosol in the mixing chamber. The melting chamber, the mixing chamber, and the control system are connected in communication.

[0070] Example 2

[0071] A method for aerosol generation using Example 1 comprises the following steps:

[0072] Before starting the test, add dimethyl silicone oil from the oil bath feed port 7 until the oil level sensor alarm sounds; add o-chlorobenzylidenemalononitrile from the reagent feed port 6 according to the test requirements and cover the feed cap.

[0073] During the test, the reagent temperature T1, aerosol concentration C1, aerosol temperature T2 and humidity R1 required for the test are set in the control system, and the heating tube is started to control the oil bath temperature T3 to heat the irritant in the inner cavity; when the temperature of the reagent temperature sensor in the irritant chamber reaches the set reagent temperature T1, the oil bath temperature is controlled to achieve stable heating, and the control system automatically turns on the air flow controller switch, and controls the air flow rate V1 through the mass flow controller. The carrier gas is divided into two paths, which are respectively introduced into the air-injected spray generation air inlet and the air purge generation air inlet. The control system selects the aerosol generation mode (spray dispersion / purge dispersion) through the solenoid valve and controls the flow rate of the introduced gas to form an irritant aerosol in the inner cavity.

[0074] The irritant aerosol generated in the melting chamber enters the aerosol inlet of the mixing chamber from the aerosol outlet of the melting chamber through the pipeline, and the aerosol flow rate is V2 (the flow rate V2 matches V1). The other air inlet of the mixing chamber is connected to the humidity generator or the air source, and clean air with humidity (for aerosol dilution and humidity R2 adjustment) is introduced, and the gas flow rate is V3; the control system controls the flow rates of V2 and V3 through the solenoid valve, and realizes the mixing of the aerosol in the mixing chamber through the turbulence effect, thereby controlling the aerosol solubility in the mixing chamber C2 and humidity R3. When the aerosol concentration C2 and humidity R3 in the mixing chamber do not match the set aerosol concentration C1 and humidity R1, the control system controls the irritant aerosol concentration C2 and humidity R3 by controlling the oil bath temperature T3 of the melting chamber, the air flow rate V1 and the aerosol generation mode (spray dispersion / purge dispersion), the flow rate V3 and humidity R2 of the dilution gas in the mixing chamber, until the aerosol concentration C2 and humidity R3 in the mixing chamber match the set aerosol concentration C1 and humidity R1 and reach a stable state.

[0075] In order to control the generated aerosol temperature T2, the aerosol temperature T4 in the mixing chamber is tested. When T4 does not match T2, the control system cools the aerosol in the mixing chamber by controlling the temperature T4 of the coolant in the circulating cooling channel until the aerosol temperature T4 in the mixing chamber matches the set aerosol temperature T2. At the same time, the coolant temperature is controlled by external cold water.

[0076] When the aerosol concentration C2, temperature T2, and humidity R3 in the mixing chamber reach the set aerosol concentration C1, temperature T2, and humidity R1, irritant injury and protection research or training can be started.

[0077] After the test is completed, the discharge valve under the melting chamber is controlled to open to discharge the remaining reagents. After the reagents are discharged, the discharge valve is closed, the oil bath heating device is turned off, and after the oil temperature cools to room temperature, detergent ethanol is injected into the cavity to clean the residual irritant in the cavity, and ethanol spray is formed in the chamber through the nozzle spray to accelerate the dissolution of the irritant in the chamber and the inner wall. After the irritant is dissolved, the washing liquid is discharged from the discharge port, and finally the residual ethanol solvent in the chamber is blown dry with air to complete the cleaning of the device.

[0078] The above description is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the scope disclosed by the present invention, which belong to the protection scope of the present invention.

Claims

1. An aerosol generating device, characterized in that: It includes melting chamber, mixing chamber and control system; The melting chamber comprises a melting chamber body (1), a heating pipe (2), an air-injection spray generating air inlet (3), an air-purge generating air inlet (4), an aerosol outlet (5), a reagent feeding port (6), an oil bath feeding port (7) and a discharge port (12); the air-injection spray generating air inlet (3) and the air-purge generating air inlet (4) are respectively connected to an external air source and a flow controller; The melting chamber body (1) adopts an inner and outer cavity design, comprising an outer cavity (1-1), an inner chamber (1-2), a reagent discharge port (1-3), and a top cover (1-4); the outer cavity (1-1) is wrapped outside the inner chamber (1-2), and the bottom of the inner chamber (1-2) is provided with a reagent discharge port (1-3) which passes through the bottom of the outer cavity (1-1); The outer cavity (1-1) is a heating oil bath cavity. The heating pipes (2) evenly distributed in the outer cavity (1-1) heat the oil bath medium. An oil bath feeding port (7) is provided on the top cover (1-4) above the outer cavity (1-1), and exhaust microholes are provided on the sealing cover of the oil bath feeding port (7). A discharge port (12) is provided on the side of the outer cavity (1-1); and an oil bath sensor monitoring device is provided in the outer cavity (1-1); The inner cavity (1-2) is a reagent melting cavity, and an air-injection spray generating air inlet (3), an air-purge generating air inlet (4), an aerosol outlet (5), and a reagent feeding port (6) are arranged on a top cover (1-4) above the inner cavity (1-2); a reagent sensor monitoring device is arranged in the inner cavity (1-2); The end of the pipe of the air injection spray generating air inlet (3) is located above the bottom of the inner cavity (1-2) and a gap is left, and a plurality of micro-hole nozzles are arranged on the side of the pipe; the end of the pipe of the air purge generating air inlet (4) is located above the inner cavity (1-2); The mixing chamber comprises a mixing chamber body (13), an aerosol inlet (14), a dilution gas inlet (15), an aerosol mixing channel (16), and a circulating cooling channel (18); the melting chamber aerosol outlet (5) is connected to the mixing chamber aerosol inlet (14) via a pipeline; The mixing chamber body (13) adopts a jacketed structure, the outer jacket is a circulating cooling channel (18) for aerosol temperature control; the inner cavity is an aerosol channel (16), one side of which is provided with an aerosol inlet (14) and a dilution gas inlet (15), which are respectively connected to the melting chamber aerosol outlet (5) and the dilution gas source; the opposite side of the aerosol channel is provided with a dilution aerosol outlet (17) for aerosol output; The melting chamber, mixing chamber and control system are communicatively connected.

2. The aerosol generating device according to claim 1, characterized in that: An oil bath level gauge (10) and an oil bath thermometer (11) are also provided on the top cover (1-4) above the outer cavity (1-1).

3. The aerosol generating device according to claim 1, characterized in that: The top cover (1-4) above the inner cavity (1-2) is also provided with a reagent level meter (8) and a reagent thermometer (9).

4. The aerosol generating device according to claim 1, characterized in that: A flow disturbance plate (19) is arranged inside the aerosol passage (16) to accelerate the rapid mixing of the aerosol in the cabin.

5. The aerosol generating device according to claim 4, characterized in that: The spoiler plates (19) are respectively arranged behind the inlet and in front of the outlet of the aerosol channel (16).

6. The aerosol generating device according to claim 1, characterized in that: An aerosol concentration, temperature and humidity sensor (20) is provided on the end surface of the mixing chamber body (13) and is connected to the control system.

7. The aerosol generating device according to claim 1, characterized in that: The control system includes a computer, a detection circuit, a control circuit, a communication interface, and an electrical interface; wherein the control system is connected to the sensors and controllers of the melting chamber and the mixing chamber through the control circuit to achieve aerosol generation in the melting chamber and temperature, humidity, and concentration control of the aerosol in the mixing chamber.

8. The aerosol generating device according to claim 1, characterized in that: The reagent of the present invention comprises a mixed material of one or more stimulants selected from o-chlorobenzylidenemalononitrile, n-nonanoic acid vanillamide and dibenzo-1,4-oxazepine.

9. A method for using the aerosol generating device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: The reagent temperature T1, aerosol concentration C1, aerosol temperature T2 and humidity R1 required for the test are set in the control system; S2: Start the heating tube (2) to heat the oil bath, use the oil bath to heat the reagent, monitor the temperature of the oil bath and the reagent; determine whether the melting cavity reagent temperature sensor reaches the set reagent temperature T1; If the temperature is not reached, the heating tube is controlled to continue heating; If the temperature is reached, proceed to step S3; S3: Control and start the flow controller to pass the air V1 into the melting chamber through the air inlet to form an aerosol; S4: The aerosol enters the mixing chamber through the pipeline, and the aerosol concentration C2, temperature T2 and humidity R3 in the mixing chamber are monitored; S5: Determine whether the aerosol concentration C2, temperature T2 and humidity R3 in the mixing chamber match the set aerosol concentration C1, aerosol temperature T2 and humidity R1; If so, the temperature of the reagent in the melting chamber, the air flow rate V1 and the generation mode, the dilution gas flow rate and humidity in the mixing chamber, and the cooling cycle temperature are stably controlled to ensure stable aerosol generation; If not, control is performed according to the following situations: 1) The aerosol concentration does not match, and the concentration in the melting chamber and the flow rate of the dilution gas are controlled to adjust the aerosol concentration; 2) Aerosol temperature does not match, control the circulating coolant temperature to adjust the aerosol temperature; 3) Aerosol humidity does not match, control and adjust the dilution gas humidity R2, and adjust the aerosol humidity; Ultimately, the aerosol concentration C2, temperature T2 and humidity R3 in the mixing chamber are matched with the set aerosol concentration C1, aerosol temperature T2 and humidity R1.

10. The method for using the aerosol generating device according to claim 9, characterized in that: In the step S3, there are two modes: air injection spray dispersion mode and air purge dispersion mode: Air-injection spray dispersion method: used to generate high-concentration aerosols. By passing compressed air under the liquid surface, the Bernoulli principle is used to draw the liquid reagent below into the spray nozzle through the airflow injection effect, and the aerosol is formed through the spray nozzle. The concentration of the generated aerosol is controlled by adjusting the flow rate, pressure and reagent temperature of the compressed air. Air purge dispersion method: used to generate low-concentration aerosols. Compressed air is blown above the liquid surface to allow the air to purge the liquid reagent surface and take out the evaporated aerosol air. The concentration of the generated aerosol is controlled by adjusting the air flow and the temperature of the liquid reagent.

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