CN216082224U - Smoke aerosol testing device for simulating human physiological environment - Google Patents

Abstract

The utility model belongs to the technical field of detection, and particularly relates to a smoke aerosol testing device for simulating a human physiological environment. The flue gas aerosol testing device comprises: flue gas sampling device (1), diluting device (2) and aerosol testing arrangement (3), flue gas sampling device (1) is including being used for with the flexible collector (1-1) that awaits measuring cigarette/smoking set (4) are connected, flexible collector (1-1) contains: a flexible inner air bag (1-1-1), an outer pressure-resistant box (1-1-2) and a vacuum-pumping device (1-1-3). The smoke aerosol testing device provided by the utility model uses the flexible collector to sample and dilute smoke. The flexible inner air bag in the flexible collector is hermetically connected with a cigarette/smoking set pipeline to be tested, the outer pressure-resistant box is connected with a vacuum source, no gas exchange exists between the flexible inner air bag and the outer pressure-resistant box, the vacuum pipeline and the smoke pipeline are separated, and the real-time test of the particle size distribution of the smoke aerosol of the heating tobacco product is realized.

Description

Smoke aerosol testing device for simulating human physiological environment

Technical Field

The utility model belongs to the technical field of detection, and particularly relates to a smoke aerosol testing device for simulating a human physiological environment.

Background

The tobacco smoke is a complex dynamic change aerosol, and the particle size distribution and the chemical substance distribution of the cigarette smoke aerosol directly influence the smoking quality of cigarettes and the deposition of smoke in the respiratory tract of a human body. The deposition parts of the particulate matters with different particle sizes in the respiratory system of the human body are different, the smaller the aerosol particles are, the deeper the part of the human body enters, and the different influences on the health of the human body are also different. Meanwhile, the chemical compositions of particles with different particle sizes of the smoke aerosol are different, and the smoking feeling is directly influenced, so that the research on the cigarette aerosol has an important role in the cigarette industry

The particle of flue gas aerosol is easy to coalesce, collide and condense, and the characteristics of the flue gas aerosol easily cause that the particle size and the particle size distribution of aerosol particles obtained by testing are different from the aerosol sucked by an actual person, so that the accuracy of the testing result is influenced. The mainstream traditional method for measuring smoke aerosol particles in the tobacco industry adopts a Cambridge filter weighing method to collect particle phase substances with the particle size of more than 400nm to obtain the total mass of the particles, but cannot obtain the particle size distribution. The gravity method, the optical method and the like have the problems that the detection time is long, and the particle size distribution of aerosol particles in the smoke cannot be monitored in real time. The electronic low-pressure inertia impact method can continuously monitor the particle size distribution characteristics of particles within a certain concentration range on line, but requires continuous and stable sample introduction, and cannot directly measure a high-concentration aerosol sample.

For the smoke draw process under test, the tobacco industry has its industry standard draw schedule: the smoking time is 2 seconds, the smoking volume is 35 milliliters, the smoking interval is 58 seconds, and the smoking curve is a bell-shaped curve, which is a state of simulating people smoking cigarettes, but the smoking and sampling mode can not necessarily meet the continuous and stable sampling requirement of the cascade impact type aerosol detection instrument; for particle size measuring instruments such as aerodynamic lenses and scanning electromigration spectroscopy, the traditional suction sampling mode requires a large amount of dilution. Therefore, in order to meet the smoking specifications of smoking machines and expand the smoking modes to meet the needs of many scientific research, the pressure requirements of many detector systems and dilution systems are adapted, and there is a need for systematic improvement of existing smoke aerosol sampling.

The existing aerosol testing device does good work for testing the aerosol of the cigarette smoke, and adopts a smoking machine, a diluter and an aerosol detector to solve the problem of continuous and stable sample introduction, but still has the following problems: 1. the transportation power of the existing flue gas testing device comes from the negative pressure of a far-end vacuum generator and a diluter, and the negative pressure transportation mode is not beneficial to adding other instrument sampling and sample introduction interfaces on a testing pipeline, so that the real-time testing cannot be realized, and only the intermittent testing can be realized. 2. No matter the cigarette is a traditional cigarette or a novel tobacco product, the generated smoke aerosol passes through the oral cavity and the throat of a human body and then enters the lung, the oral cavity and the throat are similar to the environment of saturated humidity, and the influence on the smoke aerosol cannot be ignored. 3. The temperature of the generated smoke aerosol is above 200 ℃ no matter the traditional ignition type cigarette or the heating type tobacco product, the smoke aerosol can enter the upper and lower air pipes by quickly cooling to below 37 ℃, and the influence of the cooling process on the aerosol needs to be researched and controlled. 4. Aerosol particles tend to deposit on the open and closed control valves and the spray orifice of the flue gas diluter, and can clog these areas. Therefore, the places need to be cleaned frequently and are very troublesome, and if the concentration of the aerosol in the smoke is too high, the deposition is too much, so that the test results of a few cigarettes before and after one cigarette are inconsistent. These causes make it impossible to obtain the true particle size distribution and particle size of the aerosol and the characteristics of the chemical distribution.

The present invention has been made to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a smoke aerosol testing device for simulating human physiological environment, which comprises: the device comprises a flue gas sampling device 1, a diluting device 2 and an aerosol testing device 3;

wherein, the flue gas sampling device 1 comprises: a flexible collector 1-1 used for connecting with a cigarette/smoking set 4 to be detected; the flexible collector 1-1 comprises: the device comprises a flexible inner air bag 1-1-1 with a gas inlet and a gas outlet, an outer pressure-resistant box 1-1-2 surrounding the flexible inner air bag 1-1-1, and a vacuum pumping device 1-1-3; the outer pressure-resistant box 1-1-2 is connected with the vacuumizing equipment 1-1-3, and no gas is exchanged between the flexible inner air bag 1-1-1 and the outer pressure-resistant box 1-1-2;

the dilution device 2 comprises: a modulated gas supply means 2-2 for supplying a modulated gas having a specific temperature and humidity;

wherein the modulating gas supply device 2-2 is communicated with the flexible inner air bag 1-1-1, and the gas outlet of the flexible inner air bag 1-1-1 is communicated with the aerosol testing device 3;

and at least one communication part is provided with an openable and closable valve so as to flexibly realize the communication and the closing of the devices in the test process.

The gas-free exchange between the flexible inner air bag 1-1-1 and the outer pressure-resistant box 1-1-2 means that: the flexible inner air bag 1-1-1 and the outer pressure-resistant box 1-1-2 are independent from each other.

Preferably, the communication parts are provided with openable and closable valves. The modulated gas supply device 2-2 functions as follows: 1. diluting smoke, 2, simulating the gas environment of the oral cavity, the trachea and the lung of a human body under specific temperature and humidity, and fitting the environment sucked in the real human body. The modulated gas supply means 2-2 includes one or more gas cylinders, a standard temperature-humidity gas generator, and the like. The composition of the modulating gas may be the same as the composition of air.

Preferably, the flexible inner air bag 1-1-1 is connected with a single pipeline to be directly communicated with the cigarette/smoking set 4 to be tested.

Preferably, the modulated gas supply means 2-2 communicates to the flexible inner bladder 1-1-1 in such a manner that: the modulated gas supply means 2-2 is directly connected to the flexible inner bladder 1-1-1 through a single line. At this time, the modulating gas can directly enter the flexible inner air bag 1-1-1 through the pipeline, and is kept in the flexible inner air bag 1-1-1 for a certain time to carry out temperature regulation, humidification and gas chemical processes.

Preferably, as another communication means:

the flexible inner air bag 1-1-1 is connected with a Y-shaped three-way pipe, and the other two pipe orifices of the Y-shaped three-way pipe are respectively connected with the modulating gas supply device 2-2 and a cigarette/smoking set 4 to be tested. At the Y-shaped interface, the smoke generated by the cigarette/smoking set 4 to be tested and the modulating gas in the modulating gas supply device 2-2 are mixed and diluted, so that the rapid online mixing and dilution in the testing process are realized.

Preferably, the temperature of the gas with the specific temperature and humidity is adjustable between 20 ℃ and 40 ℃, and the relative humidity is adjustable between 5% and 99%.

Preferably, the aerosol testing device comprises: the aerosol tester comprises one or more of an online particle size analyzer based on an aerodynamic lens, an online particle size analyzer based on a scanning electromigration spectrometer, a cascade particle size tester and a particle size-mass spectrometer.

Preferably, an insulating layer is arranged outside the outer pressure-resistant box. The temperature keeping layer can be an electric heating blanket layer connected with a power supply, and keeps the temperature of the outer pressure-resistant box to be about 37 ℃ which is the same as the temperature of the lung of a human body.

Preferably, the flexible inner balloon 1-1-1 is further communicated with an artificial body fluid providing device. The artificial body fluid providing means may comprise atomising means which is capable of spraying a layer of body fluid onto the inner wall of the flexible inner bladder. The artificial body fluid may be artificial saliva, which may be obtained by purchase. The body fluid layer is used for simulating specific body fluid environments of the oral cavity, the trachea and the lung of a human body so as to realize the influence of the body fluid on the aerosol state in the flexible inner air bag 1-1-1, such as the possibility of changing the chemical composition and the particle size distribution of substances in the aerosol.

Preferably, the flexible inner balloon 1-1-1 comprises several flexible sub-balloons communicating with each other, or there are baffles in the flexible inner balloon 1-1-1 in order to simulate a large specific surface area structure inside the human lungs. The diaphragm may be a curved flexible plate.

The communicating part is communicated by a low-polarity and low-heat-conductivity pipeline, for example, the pipeline is made of polytetrafluoroethylene so as to reduce the deposition pollution of the smoke and dissipate heat.

The second aspect of the present invention provides a smoke aerosol testing method for simulating a human physiological environment, which is performed by using the smoke aerosol testing apparatus of the first aspect, and the testing method comprises the following steps:

connecting the flexible inner air bag 1-1-1 with a cigarette to be tested and a smoking set, starting the smoking set to heat the cigarette, and generating aerosol after the cigarette is heated;

starting the vacuumizing equipment 1-1-3, operating the vacuumizing equipment 1-1-3 according to a set suction curve, firstly evacuating and decompressing the outer pressure-resistant box 1-1-2, driving the flexible inner air bag 1-1-1 to expand and introducing air from the cigarette/smoking set 4 to be tested and the modulated gas supply device 2-2, and enabling aerosol generated after the cigarette is heated and modulated gas to enter the flexible inner air bag 1-1-1 to be mixed and reacted; then, the vacuum pumping equipment 1-1-3 pressurizes the pressure-resistant box 1-1-2, drives the flexible inner air bag 1-1-1 to compress and discharges gas to the aerosol testing device 3.

Preferably, the above smoke aerosol testing method, before testing, comprises the following pretreatment steps: the inside of the flexible inner bag 1-1-1 is previously inflated with gas of a specific temperature and humidity for a certain period of time by using the conditioned gas supply means 2-2 so that the inside of the flexible inner bag 1-1 is in an environment of a specific temperature and humidity.

In the present invention, the smoke aerosol is generated by the operation scheme of the vacuum extractor 1-1-3 according to the preset suction scheme, and can be set to the standard mode, namely sucking one mouth every minute for 2 seconds, sucking capacity is 35m1, the suction curve is a bell-shaped curve, the smoke aerosol meets the tobacco industry standard, and the test results can be compared with each other. Other modes can be realized by replacing the flexible collector and matching with the control program of the vacuumizing equipment 1-1-3 so as to meet the scientific research requirements.

The design principle of the flexible collector 1-1 is as follows:

the respiratory movement of pulmonary gas dynamics is characterized in that-during inspiration, the abdominal muscles of the intercostal muscle boxes contract to cause the rib cage to move upwards and outwards, and the diaphragm below the lung is in a flat state, the action generated by the contraction of the two groups of muscles increases the volume of the thoracic cavity to reduce the pressure in the thoracic cavity, at the moment, the pressure of air in the lung is greater than that in the thoracic cavity, so that the lung expands, the increase of the volume of the lung reduces the pressure of air in the lung, and the air is pushed into the lung by the larger atmospheric pressure; during exhalation, the intercostal and abdominal muscles relax, allowing the frame to move downward and inward, restoring the diaphragm to the arched shape, and relaxation of the two groups of muscles results in a reduction in the volume of the chest cavity and an increase in the pressure within the chest cavity. At this time, the pressure of the air in the lung is lower than that in the chest cavity, so that the lung is shrunk, and the pressure of the air in the lung is increased due to the reduction of the volume of the lung, so that the air is pushed into the atmosphere with lower pressure.

The flexible collector simulates the respiratory characteristics of the lung, namely when the outer pressure-resistant box is connected with vacuum-pumping equipment, the pressure in the box is reduced, the pressure of external smoke and modulated gas is higher, and the external smoke and the modulated gas are pressed into the inner air bag; the outer pressure-resistant box is connected with pressure gas, so that the gas in the inner air bag is pressed out and enters a test instrument.

The acquisition mode of the flexible acquisition device is controlled by parameters such as the volume of the inner air bag, the vacuum-pressure working time and the like, and various acquisition modes can be realized.

The air bag in the flexible collector can be made of polymer films of polyethylene, polypropylene, polysiloxane, polyamide, polyester and the like and compounds thereof, metal evaporation compounds and the like, can be in various shapes such as a sphere, an ellipsoid and the like, and has a volume of 5-5000 milliliters. The outer pressure-resistant box is made of plastic, microporous plastic and the like and has certain heat preservation performance.

The flexible collector can be used in single-stage or multi-stage series connection to meet the requirements of different physicochemical effect treatments.

The technical scheme can be freely combined on the premise of no contradiction.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model has the technical effects that:

1. the smoke aerosol testing device provided by the utility model uses the flexible collector 1-1 to sample and dilute smoke. The flexible inner air bag 1-1-1 in the flexible collector 1-1 is hermetically connected with a pipeline of a cigarette/smoking set 4 to be tested, the outer pressure-resistant box 1-1-2 is connected with a vacuum source, no gas exchange exists between the flexible inner air bag 1-1-1 and the outer pressure-resistant box 1-1-2, the vacuum pipeline and a smoke pipeline are separated, and real-time testing of particle size distribution of smoke aerosol of a heating tobacco product is realized. Therefore, the utility model adopts the flexible collector 1-1 to solve the problem that the existing negative pressure conveying mode is not beneficial to adding other instruments for sampling on the testing pipeline and only can intermittently test.

2. Similarly, the flexible collector 1-1 is used for separating the vacuum pipeline from the flue gas pipeline, so that the flue gas escape during testing is effectively reduced, and the flue gas deposition pollution of the vacuum pipeline is reduced.

3. In the utility model, the suction-transport power generated by the cigarettes comes from the flexible collector 1-1 simulating the chest expansion-contraction movement, and the sampling mode can comprise a plurality of combinations such as standard modes. The user can customize the working procedure of the vacuum pumping equipment 1-1-3 according to the test requirement so as to customize the suction mode.

4. In the utility model, modulating gas with specific temperature, humidity and chemical composition is input into the flexible inner air bag 1-1-1, and the smoke and the modulating gas are mixed, so that the influence of the temperature, the humidity and the chemical composition of the gas in the oral cavity on the aerosol transport characteristics can be researched.

4. In a preferred embodiment, simulated saliva or the like can be added into the flexible inner air bag 1-1-1 of the flexible collector 1-1 to further examine the influence of various body fluids on the transport characteristics of the aerosol particles in the smoke.

5. The utility model can simulate the oral physiological environment to modulate the temperature and the humidity of the collected smoke aerosol, and the specific method adopts modulated gas with specific temperature, humidity and chemical composition to dilute the smoke so as to investigate the influence of the temperature, the humidity and the chemical atmosphere on the characteristics of the smoke aerosol particle size and the like. The single gas or the mixed gas generates modulated gas with specific temperature and humidity after passing through a temperature-humidity generator, and then flue gas can be directly diluted on line through a Y-shaped interface, or directly enters a flexible inner air bag 1-1-1 through a pipeline and then is kept for a certain time to carry out temperature regulation, humidification and gas chemical processes. In the utility model, the process of modulating the gas to dilute the flue gas can adopt two forms of rapid on-line mixing dilution and flexible collector retention time dilution to examine the influence of temperature, humidity and gas components on the transport characteristics of the aerosol so as to adapt to different research and test requirements.

6. The sampling volume and the flow rate in the flexible inner air bag 1-1-1 can be flexibly designed, and the flow field disturbance in the gas sampling test process is small.

Drawings

Fig. 1 is a test structure diagram of the smoke aerosol testing device of embodiment 1.

FIG. 2 is a second schematic diagram of the testing device of embodiment 1.

FIG. 3 is a graph showing the particle size distribution of the aerosol of the heated non-burning cigarette in example 2 in an on-line test.

Description of the drawings:

1. the device comprises a smoke sampling device 1-1, a flexible collector 1-1-1, a flexible inner air bag 1-1-2, an outer pressure-resistant box 1-1-3, vacuumizing equipment 2, a diluting device 2-2, a modulated gas supply device 3, an aerosol testing device 4 and a cigarette/smoking set to be tested.

Detailed Description

The present invention is further illustrated by the following examples, but is not limited to these examples. The experimental methods not specified in the examples are generally commercially available according to the conventional conditions and the conditions described in the manual, or according to the general-purpose equipment, materials, reagents and the like used under the conditions recommended by the manufacturer, unless otherwise specified. The starting materials required in the following examples and comparative examples are all commercially available.

Example 1

Referring to fig. 1, a smoke aerosol testing device for simulating a human physiological environment, the smoke aerosol testing device comprising: the device comprises a flue gas sampling device 1, a diluting device 2 and an aerosol testing device 3;

wherein, the flue gas sampling device 1 comprises: a flexible collector 1-1 used for connecting with a cigarette/smoking set 4 to be detected; the flexible collector 1-1 comprises: the device comprises a flexible inner air bag 1-1-1 with a gas inlet and a gas outlet, an outer pressure-resistant box 1-1-2 surrounding the flexible inner air bag 1-1-1, and a vacuum pumping device 1-1-3; the outer pressure-resistant box 1-1-2 is connected with the vacuumizing equipment 1-1-3, and no gas is exchanged between the flexible inner air bag 1-1-1 and the outer pressure-resistant box 1-1-2;

the dilution device 2 comprises: a modulated gas supply means 2-2 for supplying a modulated gas having a specific temperature and humidity;

wherein the modulating gas supply device 2-2 is communicated with the flexible inner air bag 1-1-1, and the gas outlet of the flexible inner air bag 1-1-1 is communicated with the aerosol testing device 3;

at least one of the communication positions is provided with a valve which can be opened and closed so as to control the flow direction of the gas sample.

The vacuum pumping equipment 1-1-3 is specifically a diaphragm pump.

The flexible inner air bag 1-1-1 of the flexible collector 1-1 is connected with a Y-shaped three-way pipe, and the other two branch pipe orifices of the Y-shaped three-way pipe are respectively communicated with a cigarette/smoking set 4 to be measured and a modulating gas supply device 2-2.

The cigarette/smoking set interface has different calibers such as 8 mm diameter suitable for thick cigarettes, 5 mm diameter suitable for thin cigarettes, 3 mm diameter suitable for extra-thin cigarettes, etc., and is connected to one branch pipe of the Y-shaped tee pipe fitting through quick-assembly threads. The other two branches of the Y-tee are of the same diameter and can be generally DN6 or DN 8. The connection pipeline between the Y-shaped three-way pipe fitting and the modulating gas supply device 2-2 and the flexible collector 1-1 is preferably made of polytetrafluoroethylene materials so as to reduce deposition pollution and heat dissipation.

During the test, the flexible collector 1-1 can smoke cigarettes according to the standard scheme of the cigarette industry, namely one cigarette is smoked every minute, 2 seconds are smoked every mouth, the smoking capacity is 35m1, and meanwhile, the suction force is generated according to a bell-shaped suction curve of which the suction force is from low to high and then from high to low. At the moment, a flexible inner air bag 1-1-1 with the effective volume of 35 ml can be selected, the outer pressure-resistant box 1-1-2 is firstly pumped by a diaphragm pump, and the pressure is reduced to drive the flexible inner air bag 1-1-1 to expand for air inlet; then the diaphragm pump pressurizes the outer pressure-resistant box 1-1-2 to drive the flexible inner air bag 1-1-1 to exhaust. A smoke gas sample injection valve is arranged between the Y-shaped three-way pipe fitting and the flexible inner air bag 1-1-1. A modulated gas sample injection valve is arranged between the modulated gas supply device 2-2 and the flexible inner air bag 1-1-1. An air outlet valve of the flexible inner air bag 1-1-1 is arranged between the flexible inner air bag 1-1-1 and the aerosol testing device 3.

If the flexible inner air bag 1-1-1 and the outer pressure-resistant box 1-1-2 with other volumes are used and the working mode of the diaphragm pump is adjusted, or a piston pump and a piston cylinder with specific volumes are selected, other suction and discharge modes can be realized.

If temperature control is needed in the dilution and mixing processes, the Y-shaped three-way pipe and the flexible inner air bag 1-1-1 can be placed in the outer pressure-resistant box 1-1-2, a strand of dry gas with a specific temperature is independently generated by the modulating gas supply device 2-2 to purge the outer pressure-resistant box 1-1-2 until the temperature in the outer pressure-resistant box 1-1-2 is basically balanced, and then sampling and testing are started.

The pipelines among the whole sampling system, the dilution-mixing system and the testing instrument system should be kept short in length, and are preferably made of low-thermal-conductivity plastics such as polytetrafluoroethylene and rubber. The flexible inner air bag 1-1-1 is made of polyethylene film. The outer pressure-resistant box 1-1-2 is made of plastic.

Fig. 2 is a second structural schematic diagram of the testing device of the present embodiment. In the second configuration, a Y-tee is not used. The flexible inner air bag 1-1-1 is respectively connected with a cigarette/smoking set 4 to be tested and a modulated gas supply device 2-2 through a single pipeline.

Example 2

Test cases:

the smoke aerosol test device of example 1 was used for testing. The cigarette which is not burnt is taken and inserted into the smoking set to form the cigarette/smoking set 4 to be measured. And then selecting a proper test interface according to the size of the cigarette holder, wherein the cigarette holder is connected with the mouth of a branch pipe of the Y-shaped three-way pipe fitting through the test interface. Selecting a polyethylene soft internal air bag with an effective volume of 35 ml, connecting the polyethylene soft internal air bag into a pipeline, starting an aerodynamic lens aerosol particle size tester, starting a modulated gas supply device 2-2, taking a compressed air steel cylinder as a gas source, taking reverse osmosis water as a water source, generating saturated steam at 140 ℃, mixing the saturated steam and outputting modulated gas with the temperature of 40 ℃ and the relative humidity of 95%, wherein the modulated gas is air in specific composition, and purging all pipelines for 10 minutes.

And adjusting the airflow of the modulating gas supply device 2-2, pressing a smoking set button, starting a diaphragm pump, pumping for 1 second, closing a smoke gas sample injection valve, opening a modulating gas sample injection valve, and allowing the modulating gas to enter the flexible inner air bag 1-1-1 until the flexible inner air bag 1-1-1 stops expanding. Closing the modulating gas inlet valve and the smoke gas inlet valve, opening the flexible inner air bag 1-1-1 gas outlet valve, pressurizing by the diaphragm pump, pressing the flexible inner air bag 1-1-1 to exhaust to the online aerosol particle size spectrometer, and performing particle size detection.

Fig. 2 is a distribution diagram of aerosol particle size and corresponding particle number in the present test process.

Claims (8)

1. The utility model provides a simulation human physiological environment's flue gas aerosol testing arrangement which characterized in that, flue gas aerosol testing arrangement contains: the device comprises a flue gas sampling device (1), a diluting device (2) and an aerosol testing device (3);

wherein the flue gas sampling device (1) comprises: a flexible collector (1-1) used for being connected with a cigarette/smoking set (4) to be tested; the flexible collector (1-1) comprises: a flexible inner air bag (1-1-1) with a gas inlet and a gas outlet, an outer pressure-resistant box (1-1-2) surrounding the flexible inner air bag (1-1-1), and a vacuum-pumping device (1-1-3); the outer pressure-resistant box (1-1-2) is connected with the vacuum-pumping equipment (1-1-3), and no gas exchange exists between the flexible inner air bag (1-1-1) and the outer pressure-resistant box (1-1-2);

the dilution device (2) comprises: a modulated gas supply device (2-2) for supplying a modulated gas having a specific temperature and humidity;

wherein the modulating gas supply device (2-2) is communicated to the flexible inner air bag (1-1-1), and the gas outlet of the flexible inner air bag (1-1-1) is communicated to the aerosol testing device (3);

at least one of the communication parts is provided with a valve which can be opened and closed.

2. The smoke aerosol testing device according to claim 1, wherein the flexible inner air bag (1-1-1) is connected with a single pipeline to directly communicate with the cigarette/smoking set (4) to be tested.

3. The smoke aerosol testing device according to claim 1, wherein the modulating gas supply means (2-2) is connected to the flexible inner balloon (1-1-1) in such a way that: the modulating gas supply means (2-2) is directly connected to the flexible inner bladder (1-1-1) through a single line.

4. The smoke aerosol testing device according to claim 1, wherein the flexible inner air bag (1-1-1) is connected with a Y-shaped tee pipe, and the other two pipe orifices of the Y-shaped tee pipe are respectively connected with the modulating gas supply device (2-2) and the cigarette/smoking set (4) to be tested.

5. The smoke aerosol testing device of claim 1, wherein the temperature of the gas with specific temperature and humidity is adjustable between 20 ℃ and 40 ℃, and the relative humidity is adjustable between 5% and 99%.

6. The smoke aerosol testing device according to claim 1, wherein the flexible inner air bag (1-1-1) is made of a flexible film, and the shape of the flexible inner air bag can be one or more of spherical and ellipsoidal.

7. The smoke aerosol testing device of claim 1, wherein an insulating layer is disposed outside the outer pressure-resistant box.

8. The smoke aerosol testing device according to claim 1, wherein the flexible inner air bag (1-1-1) is further communicated with an artificial body fluid providing device.

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