CN117297200A - Adaptive airflow heating smoking set and control method - Google Patents

Abstract

The invention belongs to the field of tobacco technology and discloses an adaptive airflow heating smoking set. The smoking set includes a flue assembly (1), an airflow heating assembly (2), a connector (3), a ducted fan (4) and a smoking set. Base (5); the flue assembly (1) is arranged on the upper part of the airflow heating assembly (2); the lower end of the airflow heating assembly (2) is connected to the ducted fan (4) through the connecting piece (3) together; the ducted fan (4) is arranged on the base of the smoking set (5). The invention also discloses a control method for the adaptive airflow heating smoking device.

Description

An adaptive airflow heating smoking device and control method

Technical field

The invention belongs to the field of tobacco technology, and specifically relates to an adaptive airflow heating smoking set and a control method.

Background technique

The existing heating methods of heat-not-burn smoking sets are mainly resistive heating. Resistive heating methods are divided into central heating and circumferential heating. Among them, the central heating smoking set has high energy utilization rate, but it does not fully heat the cigarette. At the same time, there is a disadvantage that tobacco residue is easy to remain in the flue and is difficult to clean. Circumferentially heated smoking cigarettes increase the utilization rate of cigarettes because heat radiates from the circumference to the center, but the heat loss is high, and the heating process may produce a paper smell, which creates a negative experience for consumers. Based on the above reasons, an airflow heated smoking device has appeared in the industry. By installing a heating component at the bottom of the smoking device, the flowing air generated by the consumer's smoking is heated and the cigarette core section is heated. Since the air is used as a medium to heat the shredded tobacco, the heated area of the shredded tobacco is large and the heating efficiency is high. At the same time, the shredded tobacco is not in direct contact with the heating piece, which solves the problem of difficulty in cleaning the smoking utensil with remaining shredded tobacco.

Since the airflow of existing airflow heating cigarettes is generated by consumers' smoking, the heated air enters from the bottom of the cigarette, but the cigarette core section has a certain heat interception ability. When the airflow passes through the cigarette core section, the temperature of different parts of the cigarette core section has significant difference. Therefore, the heating release of the cigarette core section is mainly concentrated in the lower half of the cigarette core section, while the utilization rate of the upper half of the cigarette core section is not high. At the same time, repeated baking of the lower half of the cigarette core section will produce a burnt smell, resulting in a bad consumer experience. Moreover, different specifications and cigarette core section materials have different heat interception capabilities, and existing airflow heating cigarettes have poor adaptability to cigarettes with different circumferences, lengths, and cigarette core section materials.

The present invention is proposed for this purpose.

Contents of the invention

The invention discloses an adaptive airflow heating smoking set and a control method. The adaptive airflow heating smoking device structure of the present invention controls the gas flow rate to heat the cigarette core section in different locations. It has strong adaptability to cigarettes with different circumferences, lengths and core segment materials.

The technical solution of the present invention is as follows:

A first aspect of the present invention discloses an adaptive airflow heating smoking set. The smoking set includes a flue assembly 1, an airflow heating assembly 2, a connector 3, a ducted fan 4 and a smoking set base 5; the flue assembly 1 is arranged On the upper part of the airflow heating assembly 2; the lower end of the airflow heating assembly 2 is connected with the ducted fan 4 through the connecting piece 3; the ducted fan 4 is arranged on the base 5 of the smoking article.

Preferably, the flue assembly 1 includes: a plurality of cigarette clamping blocks, a first air filter 114, a flue 102 and a flue insulation sleeve 101; the plurality of cigarette clamping blocks are of the same size and shape and are arranged along the axis. It is in the shape of a cylindrical wall that is split in the direction, and the upper end wall is in the shape of an inward slope; a plurality of cigarette clamping blocks are arranged vertically to form a cylindrical shape with a variable diameter, and the periphery of the cylindrical shape is a cylindrical flue 102 , the periphery of the flue 102 is a flue insulation sleeve 101; the bottom of each cigarette clamping block has its own slide rail 109, and a spring 107 is provided in the middle of the outer wall of each cigarette clamping block; each spring 107 passes through the spring base 106 is fixed on the inner wall of the flue 102; each slide rail 109 has a limit block 115; the first air filter 114 is fixedly arranged at the bottom of the flue 102; the slide rail 109 and the limit A block 115 is mounted on said first air filter 114 .

Preferably, a suction sensor 108 and a gas flow rate sensor 116 are installed at the lower end of the flue 102; a flexible sealing gasket 117 is installed at the upper end of the flue insulation sleeve 101; and on the inner wall of one of the cigarette clamping blocks There are several temperature sensors arranged;.

Preferably, there are three cigarette clamping blocks, namely the first cigarette clamping block 103, the second cigarette clamping block 104 and the third cigarette clamping block 105; there are four temperature sensors, equidistantly arranged on the first cigarette clamping block. On the inner wall of the clamping block 103, from top to bottom are the first temperature sensor 110, the second temperature sensor 111, the third temperature sensor 112 and the fourth temperature sensor 113; the surfaces of the four temperature sensors are consistent with those inserted into the flue 102. 10 cigarettes in direct contact.

Preferably, the air flow heating assembly 2 includes a cavity insulation jacket 201, a first cavity 202 and a second cavity 203; the first cavity 202 and the second cavity 203 are combined to form a complete air flow and heating system. cavity; the cavity insulation jacket 201 wraps the air flow and the periphery of the heating cavity; an air flow channel 204 is arranged in the second cavity 203, and the air flow channel 204 has the same shape as the Tesla valve; the air flow A heating strip 205 is printed on the channel 204; an air flow channel and a heating strip are also arranged in the first cavity 202, which is mirror-symmetrical to the second cavity 203.

Preferably, the upper end of the connector 3 is a rectangular interface and the lower end has external threads; the upper rectangular interface of the connector 3 is an interference fit with the rectangular hole at the lower end of the airflow heating component 2, and the external threads at the lower end pass through the ducted fan 4 Internal thread connection; the air inlet at the bottom of the ducted fan 4 is equipped with a second air filter 8 .

Preferably, the smoking set also includes a battery 6, a support frame 7 and a smoking set shell 9; the support frame 7 is fixed in the smoking set shell 9, and the support frame 7 is used to fixedly install the battery 6 and the airflow heating assembly 2; The smoking set shell 9 and the smoking set base 5 are connected together by buckles.

A second aspect of the present invention discloses a control method for an adaptive airflow heating smoking set. Using the smoking set as claimed in the claims includes the following steps:

The cigarette 10 is inserted into the cylindrical space formed by the first cigarette clamping block 103, the second cigarette clamping block 104 and the third cigarette clamping block 105 along the slope-shaped opening; the heating strip 205 in the airflow heating assembly 2 heats up. , the ducted fan 4 starts to output airflow, and the gas flow rate sensor 116 detects the gas flow rate; the first temperature sensor 110, the second temperature sensor 111, the third temperature sensor 112 and the fourth temperature sensor 113 measure four temperatures from top to bottom. ; According to the relationship between the gas flow rate and the four temperatures, the heat interception coefficient of the 10 cigarette core segments can be obtained; the corresponding flow rate curve is matched according to the heat interception coefficient, and then heated to the required temperature by the heating strip 205. The entire preheating process Finish;

When smoking the cigarette 10, the suction sensor 108 transmits the signal to the ducted fan 4, and the ducted fan 4 outputs the gas flow rate according to the preheated flow rate curve in the preheating stage; at the same time, the heating component 2 continues to heat according to the preset heating curve; The puff count data detected by the puff sensor 108 is fed back to the heating component 2 and the ducted fan 4 in real time to correct the flow rate curve and the heating curve; the four temperature sensors respectively measure the upper, middle, and lower parts of the cigarette core section of the cigarette 10. , conduct temperature detection at the lower part, first heat the upper part of the cigarette core section with a faster gas flow rate, and then heat the upper, middle, and lower cigarette core sections respectively after the heating is completed, and use the temperature sensors of each part to provide real-time feedback adjustment, and finally complete the entire suction process.

Beneficial effects of the present invention:

An adaptive air flow heating cigarette set designed by the present invention can match cigarettes with different lengths, circumferences, and core segment materials. The adaptive air flow heating smoke of the present invention cooperates with the ducted fan and the air flow heating assembly to better conduct the air flow temperature to different parts of the cigarette core section. Through the control of the sensor, the utilization rate of the cigarette core section can be greatly improved. , to avoid repeated baking of the same part of the cigarette core section to produce a burnt smell, thereby bringing a bad consumer experience.

Description of drawings

Figure 1 is a schematic diagram of the appearance of the adaptive airflow heating smoking device of the present invention.

Figure 2 is a schematic diagram of the internal structure of the adaptive airflow heating smoking device of the present invention.

Figure 3 is an exploded view of the internal structure of the adaptive airflow heating smoking device of the present invention.

Figure 4 is an exploded view of the internal three-dimensional structure of the adaptive airflow heating smoking device of the present invention.

Figure 5 is an internal structural diagram of the flue assembly of the present invention.

Figure 6 is a cross-sectional view of the internal structure of the flue assembly of the present invention.

Figure 7 is a schematic structural diagram of the airflow heating assembly of the present invention.

Figure 8 is a schematic structural diagram of the flue insulation jacket of the present invention.

Figure 9 is a control flow chart of the adaptive airflow heating smoking device of the present invention.

Figure 10 is a graph corresponding to the gas flow rate and the number of puffs in the adaptive airflow heating smoking device of the present invention.

Figure 11 is a temperature graph of different sensors of the present invention.

The reference numbers are: 1. Flue assembly; 101. Flue insulation sleeve; 102. Flue; 103. First cigarette clamping block; 104. Second cigarette clamping block; 105. Third cigarette clamping block; 106. Spring base; 107. Spring; 108. Suction sensor; 109. Slide rail; 110. First temperature sensor; 111. Second temperature sensor; 112. Third temperature sensor; 113. Third temperature sensor; 114. First air filter; 115, limit block; 116, gas flow rate sensor; 117, sealing gasket; 2, air flow heating component; 201, cavity insulation sleeve; 202, first cavity; 203, second cavity; 204. Air flow channel; 205. Heating strip; 3. Connector; 4. Ducted fan; 5. Smoking set base; 6. Battery; 7. Support frame; 8. Second air filter; 81. Sealing ring; 9. Smoking set shell; 10. Cigarettes.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

As shown in Figures 1-8, an adaptive airflow heating smoking set of the present invention includes a flue assembly 1, an airflow heating assembly 2, a connector 3, a duct fan 4 and a smoking set base 5; The duct assembly 1 is arranged on the upper part of the air flow heating assembly 2; the lower end of the air flow heating assembly 2 is connected with the duct fan 4 through the connecting piece 3; the duct fan 4 is arranged on the smoking article base 5.

As shown in Figures 5-6, the flue assembly 1 includes: multiple cigarette clamping blocks, a first air filter 114, a flue 102 and a flue insulation sleeve 101; the size and shape of the multiple cigarette clamping blocks The same, it is in the shape of a cylindrical wall split along the axial direction, and the upper end wall is sloped inward; multiple cigarette clamping blocks are arranged vertically to form a cylindrical shape with a variable diameter, and the periphery of the cylindrical shape is a cylindrical shape. shaped flue 102, the periphery of the flue 102 is a flue insulation sleeve 101; the bottom of each cigarette clamping block has its own slide rail 109, and a spring 107 is provided in the middle of the outer wall of each cigarette clamping block; each cigarette clamping block is provided with a spring 107. The spring 107 is fixed on the inner wall of the flue 102 through the spring base 106; each slide rail 109 has a limiting block 115; the first air filter 114 is fixedly arranged at the bottom of the flue 102; the slide The rail 109 and the limiting block 115 are installed on the first air filter 114 .

Among them, a suction sensor 108 and a gas flow rate sensor 116 are installed at the lower end of the flue 102; a flexible sealing gasket 117 is installed at the upper end of the flue insulation sleeve 101; and is arranged on the inner wall of one of the cigarette clamping blocks. There are several temperature sensors;.

Among them, there are three cigarette clamping blocks, namely the first cigarette clamping block 103, the second cigarette clamping block 104 and the third cigarette clamping block 105; there are four temperature sensors, which are arranged at equal distances from the first cigarette clamping block. On the inner wall of the clamping block 103, from top to bottom are the first temperature sensor 110, the second temperature sensor 111, the third temperature sensor 112 and the fourth temperature sensor 113; the surfaces of the four temperature sensors are in contact with the smoke inserted into the flue 102. Support 10 direct contacts.

As shown in Figure 7, the airflow heating assembly 2 includes a cavity insulation jacket 201, a first cavity 202 and a second cavity 203; the first cavity 202 and the second cavity 203 are combined together to form a complete Air flow and heating cavity; the cavity insulation jacket 201 wraps the periphery of the air flow and heating cavity; an air flow channel 204 is arranged in the second cavity 203, and the air flow channel 204 has the same shape as the Tesla valve; A heating strip 205 is printed on the air flow channel 204; an air flow channel and a heating strip are also arranged in the first cavity 202, which are mirror images of the second cavity 203.

As shown in Figure 3-4, the upper end of the connector 3 is a rectangular interface and the lower end has external threads; the upper rectangular interface of the connector 3 is an interference fit with the rectangular hole at the lower end of the airflow heating component 2, and the external threads at the lower end are The ducted fan 4 is connected through internal threads; the air inlet at the bottom of the ducted fan 4 is equipped with a second air filter 8 .

As shown in Figures 1 and 2, the smoking set also includes a battery 6, a support frame 7 and a smoking set shell 9; the support frame 7 is fixed in the smoking set shell 9, and the support frame 7 is used to fix the battery 6 and the airflow. Heating component 2; the smoking set shell 9 and the smoking set base 5 are connected together by buckles.

The method of using the adaptive airflow heating smoking device of the present invention includes the following steps:

The cigarette 10 is inserted into the cylindrical space formed by the first cigarette clamping block 103, the second cigarette clamping block 104 and the third cigarette clamping block 105 along the slope-shaped opening; the heating strip 205 in the airflow heating assembly 2 heats up. , the ducted fan 4 starts to output airflow, and the gas flow rate sensor 116 detects the gas flow rate; the first temperature sensor 110, the second temperature sensor 111, the third temperature sensor 112 and the fourth temperature sensor 113 measure four temperatures from top to bottom. ; According to the relationship between the gas flow rate and the four temperatures, the heat interception coefficient of the 10 cigarette core segments can be obtained; the corresponding flow rate curve is matched according to the heat interception coefficient, and then heated to the required temperature by the heating strip 205. The entire preheating process Finish;

When smoking the cigarette 10, the suction sensor 108 transmits the signal to the ducted fan 4, and the ducted fan 4 outputs the gas flow rate according to the preheated flow rate curve in the preheating stage; at the same time, the heating component 2 continues to heat according to the preset heating curve; The puff count data detected by the puff sensor 108 is fed back to the heating component 2 and the ducted fan 4 in real time to correct the flow rate curve and the heating curve; the four temperature sensors respectively measure the upper, middle, and lower parts of the cigarette core section of the cigarette 10. , conduct temperature detection at the lower part, first heat the upper part of the cigarette core section with a faster gas flow rate, and then heat the upper, middle, and lower cigarette core sections respectively after the heating is completed, and use the temperature sensors of each part to provide real-time feedback adjustment, and finally complete the entire suction process.

In the adaptive airflow heating smoking set of the present invention, the cigarette 10 is inserted between the first cigarette clamping block 103, the second cigarette clamping block 104 and the third cigarette clamping block 105. Since the upper ends of the three cigarette clamping blocks are all facing towards When the cigarette 10 is inserted, the bottoms of the three cigarette clamping blocks slide on the three slide rails 109 of the air filter 114 and compress their respective springs 107 at the same time. When the cigarette 10 is pulled out, under the action of the spring 107, the three cigarette clamping blocks move inward along the three slide rails, and at the same time return to the initial position under the limit position restriction of the three limiting blocks 115. When a cigarette with a larger circumference is used, the compression amount of the three springs 107 increases, and the cigarette can still be stably clamped. The upper end of the flue insulation sleeve 101 is provided with a highly flexible and temperature-resistant sealing gasket 117. The beneficial effect is: when inserting cigarettes with different circumferences, the sealing effect of the airflow can still be ensured, and the airflow passing through the cigarette can enter the cigarette from the bottom of the cigarette. The filter end is output; at the same time, the flue 101 has a certain length, which ensures that the adaptive airflow heating cigarette can adapt to cigarettes of different circumferences and lengths.

As shown in Figure 7, the first cavity 202 and the second cavity 203 of the airflow heating assembly 2 are connected by screws to form a completed airflow and heating cavity. The cavity insulation sleeve 201 is installed on the outer periphery of the airflow and heating cavity, and Cavity interference fit. The beneficial effect is to insulate the air flow heating components and save energy. An air flow channel 204 is arranged in the second cavity 203. The shape of the air flow channel 204 is the same as that of the Tesla valve. Its beneficial effect is to increase the air flow heating distance and ensure that the air flow direction is from the bottom of the air flow heating assembly 2 to entering from the bottom of the air flow heating assembly 2. Upper output; at the same time, when the airflow passes through the Tesla valve-shaped airflow channel 204, it has a certain acceleration function; the airflow channel 204 is printed with a heating strip 205, which has the beneficial effect of improving the heating efficiency and reducing the size of the heating component; Air flow channels and heating strips are also arranged in the first cavity 202 , mirroring the second cavity 203 .

Four temperature sensors are arranged in the flue. The control method of the cigarette is as follows: after the consumer inserts the cigarette, the cigarette is clamped by three cigarette clamping blocks. After the power is turned on, the heating strip 205 is heated to the temperature T ₀ . The temperature T ₀ is smaller than the cigarette core section. The volatilization temperature of flue gas will not cause the loss of flue gas in the core section. The ducted fan 4 starts the output air flow, and the gas flow rate V ₀ is detected by the gas flow rate sensor 116 arranged in the flue. The temperatures of the four temperature sensors arranged in the flue from top to bottom are T ₁₀ , T ₂₀ , T ₃₀ , and T ₄₀ respectively. According to the relationship between V ₀ and T ₁₀ , T ₂₀ , T ₃₀ , and T ₄₀ , it can be concluded that the smoke The heat interception coefficient ξ of the cigarette core segment is matched with the corresponding flow rate curve L according to the heat interception coefficient ξ. The heating strip 205 in the airflow heating assembly 2 is then heated to a temperature T ₀₁ . The T ₀₁ temperature can volatilize the smoke in the cigarette core section, and the entire preheating process is completed. When a consumer smokes a cigarette, the puff sensor 108 detects it and transmits the signal to the ducted fan 4. The ducted fan 4 outputs the flow rate according to the flow rate curve L preheated in the preheating stage; the ducted fan 4 can only operate during the puffing process. Trigger start and stop during puff intervals to avoid wasting smoke. At the same time, the heating component 2 continues to heat according to the preset heating curve, and the suction sensor 108 detects the number of puffs. The number of puffs detected by the suction sensor 108 is fed back to the heating component 2 and the ducted fan 4 in real time, and the flow rate curve L is compared with the heating The curve is corrected. Different gas flow rates correspond to different heating parts of the cigarette core section of the 10 cigarettes. When the gas flow rate is larger, the heating of the cigarette core section is closer to the upper end. Four temperature sensors detect the heating temperatures of the four parts of the cigarette core section, and simultaneously The signal is transmitted to the ducted fan 4 to ensure maximum utilization of the smoke core section. Preferably, heating the cigarette core section from top to bottom can avoid the burnt smell caused by over-baking at the lower end of the cigarette core section, so the air supply rate of the ducted fan 4 is gradually reduced. When the four temperature sensors detect that the temperature reaches the target value in sequence, the smoke from the entire cigarette core section is released, and the smoking ends.

The present invention will be continued by taking the example of heating a cigarette cigarette 10 with a larger circumference and larger length of sheet-type core segment. The cigarette 10 is inserted into the smoking article, and the three cigarette clamping blocks are forced to move along the slide rail 109 toward the inner wall of the flue 102, and at the same time, the three springs 107 are compressed to clamp the cigarette 10. The highly flexible and temperature-resistant sealing gasket 117 on the flue insulation sleeve 101 is in close contact with the filter end of the cigarette 10 to ensure sealing. The heating strip 205 in the airflow heating assembly 2 is heated to T ₀ , the ducted fan 4 starts to output airflow, and the gas flow rate sensor 116 detects the gas flow rate V ₀ . The temperatures from top to bottom of the four temperature sensors 110, 111, 112, and 113 arranged in the flue are T ₁₀ , T ₂₀ , T ₃₀ , and T ₄₀ respectively. According to V ₀ and T ₁₀ , T ₂₀ , T ₃₀ , and T ₄₀ According to the relationship, the heat interception coefficient ξ of the cigarette core section can be obtained, and the corresponding flow rate curve L is matched according to the heat interception coefficient ξ. It is then heated to temperature T ₀₁ by the heating strip 205 in the airflow heating assembly 2, and the entire preheating process is completed. When the consumer smokes a cigarette, the puff sensor 108 detects it and transmits the signal to the ducted fan 4. The ducted fan 4 outputs the flow rate according to the preheated flow rate curve L in the preheating stage. The ducted fan 4 is only triggered to start during the suction process, and is stopped during the suction interval to avoid waste of smoke. At the same time, the heating component 2 continues to heat according to the preset heating curve, and the suction sensor 108 detects the number of puffs. The number of puffs detected by the suction sensor 108 is fed back to the heating component 2 and the ducted fan 4 in real time, and the flow rate curve L is compared with the heating The curve is corrected. The four temperature sensors detect the temperature of the upper, middle upper, middle lower and lower parts of the cigarette core section respectively. The temperatures are T ₁ , T ₂ , T ₃ and T ₄ respectively. First, the upper part of the cigarette core section is measured at a faster gas flow rate. For heating, real-time feedback is provided by the temperature sensor on the upper part of the cigarette core section. After heating is completed, the upper, middle and lower cigarette core sections are heated respectively, and the temperature sensors on each part are used for real-time feedback adjustment, and finally the entire smoking process is completed. For larger circumferences and larger lengths, the relationship between the gas flow rate and the number of puffs in the sheet-type core segment heated cigarette is shown in Figure 10. It can be seen that the gas flow rate shows a decreasing trend with the increase in the number of puffs. The relationship between the temperatures T ₁ , T ₂ , T ₃ , and T ₄ detected at the upper, middle, upper, middle, and lower parts of the cigarette core section and the entire smoking time is shown in Figure 11. It can be seen that the upper, middle, and lower parts of the cigarette core section The temperature curves detected in the upper, middle, lower, and lower parts first increase to reach the peak and then decrease. However, the temperature peak times of the four parts of the cigarette core section are different. The temperature peaks are reached in the upper, middle, upper, middle, and lower parts of the cigarette core section. The time increases in sequence, which means that different parts of the cigarette core section are roasted at different times, thereby increasing the utilization rate of the cigarette core section and avoiding the bad experience caused by the burnt smell caused by repeated baking of one part.

The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limitations of the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. For those of ordinary skill in the art, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims (8)

1. The self-adaptive airflow heating smoking set is characterized by comprising a flue assembly (1), an airflow heating assembly (2), a connecting piece (3), a ducted fan (4) and a smoking set base (5); the flue assembly (1) is arranged at the upper part of the airflow heating assembly (2); the lower end of the air flow heating component (2) is connected with the duct fan (4) through the connecting piece (3); the ducted fan (4) is arranged on the smoking set base (5).

2. The adaptive airflow heating smoking article of claim 1, wherein said flue assembly (1) comprises: a plurality of cigarette clamping blocks, a first air filter screen (114), a flue (102) and a flue insulation sleeve (101); the plurality of cigarette clamping blocks have the same size and shape, are in a cylindrical wall shape split along the axial direction, and have an inward slope shape on the upper end wall surface; the plurality of cigarette clamping blocks are vertically arranged to form a cylinder with a changeable cylinder diameter, the periphery of the cylinder is a cylinder-shaped flue (102), and the periphery of the flue (102) is a flue insulation sleeve (101); the bottom of each cigarette clamping block is provided with a respective sliding rail (109), and the middle part of the outer wall of each cigarette clamping block is provided with a spring (107); each spring (107) is fixed on the inner wall of the flue (102) through a spring base (106); each sliding rail (109) is provided with a limiting block (115); the first air filter screen (114) is fixedly arranged at the bottom of the flue (102); the sliding rail (109) and the limiting block (115) are arranged on the first air filter screen (114).

3. The adaptive airflow heating smoking set of claim 2, wherein a suction sensor (108) and a gas flow rate sensor (116) are mounted at the lower end of the flue (102); a flexible sealing gasket (117) is arranged at the upper port part of the flue heat insulation sleeve (101); a plurality of temperature sensors are arranged on the inner wall of one of the cigarette clamping blocks; .

4. A self-adaptive airflow heating smoking set according to claim 3, wherein the number of the cigarette clamping blocks is three, namely a first cigarette clamping block (103), a second cigarette clamping block (104) and a third cigarette clamping block (105); the four temperature sensors are equidistantly arranged on the inner wall of the first cigarette clamping block (103), and the first temperature sensor (110), the second temperature sensor (111), the third temperature sensor (112) and the fourth temperature sensor (113) are respectively arranged from top to bottom; the surfaces of the four temperature sensors are in direct contact with cigarettes (10) inserted into the flue (102).

5. The adaptive airflow heating smoking article of claim 1, wherein said airflow heating assembly (2) includes a cavity insulating sleeve (201), a first cavity (202) and a second cavity (203); the first cavity (202) and the second cavity (203) are combined together to form a finished air flow and heating cavity; the cavity insulating sleeve (201) wraps the periphery of the airflow and heating cavity; an airflow channel (204) is arranged in the second cavity (203), and the shape of the airflow channel (204) is the same as that of a Tesla valve; the air flow channel (204) is printed with a heating strip (205); the first cavity (202) is internally provided with an air flow channel and a heating strip which are in mirror symmetry with the second cavity (203).

6. The adaptive airflow heating smoking set according to claim 1, wherein the upper end of the connecting piece (3) is a rectangular interface, and the lower end is provided with external threads; the rectangular interface at the upper end of the connecting piece (3) is in interference fit with the rectangular hole at the lower end of the airflow heating assembly (2), and the external thread at the lower end is connected with the ducted fan (4) through the internal thread; the air inlet at the bottom end of the ducted fan (4) is provided with a second air filter screen (8).

7. The adaptive airflow heating smoking article of claim 1, further comprising a battery (6), a support (7) and a smoking article housing (9); the support frame (7) is fixed in the smoking set shell (9), and the support frame (7) is used for fixedly mounting the battery (6) and the airflow heating component (2); the smoking set shell (9) is connected with the smoking set base (5) through a buckle.

8. A method of using an adaptive airflow heating smoking article, comprising the steps of:

the cigarettes (10) are inserted into a cylindrical space formed by the first cigarette clamping block (103), the second cigarette clamping block (104) and the third cigarette clamping block (105) along the slope-shaped opening; heating strips (205) in the airflow heating assembly (2) are heated, the ducted fan (4) starts to output airflow, and the airflow speed sensor (116) detects the airflow speed; the first temperature sensor (110), the second temperature sensor (111), the third temperature sensor (112) and the fourth temperature sensor (113) measure four temperatures from top to bottom; according to the relation between the gas flow rate and the four temperatures, the heat interception coefficient of the tobacco core section of the cigarette (10) can be obtained; matching corresponding flow velocity curves according to the heat cutting coefficients, and heating to a required temperature by a heating strip (205), wherein the whole preheating process is completed;

when the smoke branch (10) is drawn, the smoke sensor (108) transmits a signal to the ducted fan (4), and the ducted fan (4) outputs the gas flow rate according to a flow rate curve preheated in a preheating stage; meanwhile, the heating component (2) is continuously heated according to a preset heating curve; the mouth number data detected by the suction sensor (108) are fed back to the heating assembly (2) and the ducted fan (4) in real time, and the flow rate curve and the heating curve are corrected; the four temperature sensors respectively detect the temperatures of the upper part, the middle lower part and the lower part of the tobacco core section of the cigarette (10), firstly, the upper part of the tobacco core section is heated at a faster gas flow rate, after the heating is finished, the middle upper part, the middle lower part and the lower part of the tobacco core section are respectively heated, the temperature sensors at all parts are used for real-time feedback adjustment, and finally, the whole suction process is finished.