CN106235421A - The raw cigarette device of a kind of cavity adjustable type intelligent temperature control Nicotiana tabacum L. dry type low-temperature heat - Google Patents

Abstract

An intelligent temperature-controlled tobacco dry-type low-temperature heating smoke generating device with an adjustable cavity, including a test tube for placing tobacco, a shell with a heater outlet, a control circuit placed in the shell, and a heater for heating the test tube The test tube is independent of the heater and has a variety of models that can be replaced. It is mainly used for holding tobacco and collecting smoke. The top of the test tube is provided with a piston cover with a central hole for smoke detection; the heating The device includes a heating chamber, three ceramic heating chips with different powers, four evenly distributed temperature sensors, and a thermally conductive insulating layer wrapped around the heating wire. The present invention adopts the improved PID algorithm to carry out temperature analysis and control, avoiding large fluctuations in temperature due to thermal inertia, and adopts three-way ceramic heating plates to heat evenly and independently. High, even heating, and the released smoke is even and stable.

Description

An intelligent temperature-controlled tobacco dry-type low-temperature heating smoke-generating device with an adjustable cavity

technical field

The invention relates to the field of tobacco heating, in particular to a cavity-adjustable intelligent temperature-controlled dry-type low-temperature heating smoke-generating device for dry heating tobacco and collecting generated smoke, which can precisely adjust the temperature.

Background technique

In recent years, as the sales of traditional tobacco products have stagnated or even declined in some developed countries, and the ban on smoking in public places in many countries has continued to increase, new tobacco products are emerging rapidly. At present, there are three main categories of new tobacco, smokeless tobacco products, low-temperature cigarettes, and electronic cigarettes. Among them, smokeless tobacco products refer to tobacco products that have not been burned and consumed through the oral or nasal cavity. From the perspective of use behavior, they refer to tobacco products that are used in a non-smoking manner. Smokeless tobacco products mainly provide consumers with a sense of satisfaction through sucking, sucking, and chewing tobacco, including snus, snuff, and chewing tobacco; low-temperature cigarettes are similar in appearance to traditional cigarettes, and only heat without burning below 500 degrees Celsius Tobacco, but can deliver satisfaction and part of the tobacco aroma to consumers. This heat-not-burn cigarette reduces the harmful components produced by high-temperature combustion and pyrolysis of tobacco, and greatly reduces the release of chemical components in mainstream smoke. At the same time, unlike the smoldering of conventional cigarettes, the shredded tobacco is in a non-burning/non-heating state during puffing intervals, so sidestream smoke and ambient smoke are also greatly reduced. According to different heating sources, heating non-combustion tobacco products can be divided into electric heating tobacco products, combustion heating tobacco products and physical and chemical reaction heating tobacco products; electronic cigarettes atomize a solution containing nicotine and absorb it through the lungs , so that consumers can obtain a sense of satisfaction similar to smoking traditional cigarettes. Compared with ordinary cigarettes, electronic cigarettes do not contain harmful substances such as tar, carbon monoxide, carbon dioxide, hydrocyanic acid, acrolein, arsenic, lead, mercury, etc., so they will not cause any harm to smokers. In addition, the nicotine solution forms an aerosol after being atomized, and the aerosol is rapidly diluted in the air, while the low-density aerosol is difficult to be absorbed again and will not form second-hand smoke. Therefore, e-cigarettes will not endanger the health of smokers, nor will they endanger the health of those around them. New tobacco products usually have the following main features: First, they do not need to be burned, which greatly reduces the tar and harmful components produced by burning, and are less harmful than traditional cigarettes; second, they do not produce second-hand smoke and will not harm the public. The impact of the environment has alleviated the contradiction between smoking and smoking bans in public places to a certain extent; the third is to adapt and meet the physiological needs of consumers to a certain extent.

New tobacco products are emerging strategic products of the tobacco industry, and the development of new tobacco products is a major strategic issue related to the future development of the industry. With the rapid growth of market demand for new tobacco products and more and more tobacco manufacturers committing to the research and development of less harmful new tobacco products, as a representative new tobacco product, heat-not-burn low-temperature cigarettes have begun to gradually received more and more attention. However, the existing heaters that only heat non-burning tobacco generally use a single heat source for heating, without separating and independently controlling the external heat source, and at the same time, the temperature measurement is not very accurate, and the non-adjustable heating chamber is not suitable for the generated heat. There is no reasonable, effective and convenient collection of smoke.

For example, in the Chinese patent document with application number 200820046934.9, a tobacco heating device suitable for use in a hookah is disclosed, including a closed outer cover, an electric heating element and a power cord, through which an external power supply is connected to heat the electric heating wire to heat the tobacco Produces fumes.

For another example, in the Chinese patent document with application number 201410822140.7, a tobacco heater is disclosed, which includes a casing with a cigarette insertion port and an airflow inlet, a control circuit placed in the casing and a device for heating cigarettes. Heater, wherein the heater includes a heating body, a heat conducting element wrapped around the heating body, and a thermal insulation element placed on the outer layer of the heat conducting element. There is a heating cavity surrounded by the heat conducting element above the heating body. The cavity is opposite to the cigarette insertion port so that the heated gas is used to heat the tobacco product, and the working temperature ranges from 150°C to 600°C.

Due to the large thermal inertia of the heating temperature, the actual temperature will swing up and down at the set temperature during the heating process, which makes the temperature in the heating chamber unstable, and the smoke generated in the front and rear stages is not uniform. At the same time, the uneven distribution of the external heat source and the overall control will lead to incomplete heating of the tobacco and a low utilization rate of the tobacco. In addition, the integration of the tobacco heating device and the tobacco containing device is inconvenient to collect the smoke for analysis and detection.

Contents of the invention

In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide an intelligent temperature-controlled tobacco dry-type low-temperature heating smoke generating device with an adjustable cavity, which is used to solve the problem of temperature measurement and control accuracy of tobacco heating equipment in the prior art. Not high, uneven heating and non-adjustable heating chamber lead to inconvenient smoke detection problems.

To achieve the above object, the technical solution adopted in the present invention is:

An intelligent temperature-controlled tobacco dry-type low-temperature heating smoke generating device with an adjustable cavity, including a casing, a cylindrical test tube for holding tobacco, a heater for heating the test tube, a control circuit, a test tube and a control circuit. The heaters are all connected to the control circuit; wherein, the heater includes a cylindrical heating chamber with an open top, the test tube is arranged in the cylindrical heating chamber, and the heating chamber is provided with a heating part capable of uniformly heating the test tube. The components are wrapped with insulating and heat-conducting materials; the top of the test tube is provided with a piston cover, and a central hole is opened in the center of the piston cover, and the center hole communicates with the inside of the test tube.

A further improvement of the present invention is that one end of the heating component is connected to a power supply, and the other end is connected to a control circuit; several temperature sensors are arranged between the heating component and the insulating and heat-conducting material.

A further improvement of the present invention lies in that the insulating and heat-conducting material is mica or heat-conducting rubber.

A further improvement of the present invention is that the temperature sensor is a PT-100 platinum resistance, and the temperature sensor is connected with the control circuit.

A further improvement of the present invention is that the heating component is arranged on the inner wall and bottom of the heating chamber; the heating component is a heating wire or a ceramic heating sheet; wherein, the power of the heating wire is 100W, 50W or 50W.

A further improvement of the present invention is that when the heating component is a ceramic heating chip, three ceramic heating chips for heating the test tube are arranged in the heating chamber, which are respectively the first ceramic heating chip, the second ceramic heating chip and the third ceramic heating chip. Ceramic heating sheet, the first ceramic heating sheet is located at the bottom of the test tube, the second ceramic heating sheet and the third ceramic heating sheet are arranged around the test tube; between the heating chamber and the three-way ceramic heating sheet, there is a device for wrapping the three-way ceramic heater. The first insulating and heat-conducting material and the second insulating and heat-conducting material of the heating plate; the second ceramic heating plate and the third ceramic heating plate are wrapped by the first insulating and heat-conducting material, and the first ceramic heating plate is wrapped by the second insulating and heat-conducting material.

The further improvement of the present invention is that the size of the opening of the heating chamber is the same as the outer diameter of the test tube; a layer of thermal insulation material is arranged outside the heating chamber to wrap the outer wall of the heating chamber; the head of the test tube is wrapped with a layer of insulating insulation hot material.

The further improvement of the present invention is that the thermal insulation material is asbestos, rock wool, aluminum silicate fiber paper or ceramic fiber paper; the housing is also provided with a display unit connected to the control circuit, a control button unit and Light unit.

A further improvement of the present invention is that both the test tube and the piston cover on the top of the test tube are made of glass or copper.

The further improvement of the present invention lies in that there is a power switch on the casing to connect to an external 220V AC power supply; an electric fan for cooling the components in the casing is arranged inside the casing, and the electric fan is connected to the control circuit through a relay.

Compared with prior art, the beneficial effect of the present invention is:

In the present invention, a piston cover with a central hole is arranged at one end of the test tube, and the material of the piston cover can be consistent with that of the test tube. On the one hand, the smoke sample can be directly analyzed through the central hole on the piston cover; The test tube can be taken out for experimental analysis operation without moving the whole experimental device, which makes the experimental operation more flexible and convenient. The present invention adopts an embedded computer system as the temperature intelligent control center, and sets four sensitive temperature sensors to quickly and accurately detect and feedback temperature changes in the heating process, and sets heating components to precisely adjust the temperature control. The advanced digital PID algorithm eliminates as much as possible the adverse effects of thermal inertia, temperature fluctuations and uneven heating during the heating process, so as to achieve accurate temperature measurement and precise temperature control. Simultaneously, the present invention adopts the test tube independent of the heater to hold the tobacco, and the test tube has various models that can be replaced. The addition of heated tobacco and the cleaning of heated tobacco are also simpler and more convenient. In order to avoid the problem of incomplete heating of tobacco caused by uneven heating, an insulating and heat-conducting material with excellent thermal conductivity is arranged between the test tube and the heating plate on the inner wall of the heating chamber, which not only makes the test tube and the heating chamber more compatible, but also improves the heat conduction efficiency. At the same time, it also makes the heating more uniform, and the insulating layer also has a certain degree of safety protection for emergencies such as accidental leakage of the heating plate. The invention has the advantages of simple structure, low cost and easy experimental operation and manufacturing.

Further, in order to observe the change of temperature more intuitively and conveniently, four nixie tubes are set corresponding to four high-precision and sensitive temperature sensors, which are used to display the temperature measurement value in real time, and the temperature measurement value is accurate to 0.5°C. At the same time, the control circuit is also equipped with a low-voltage detection unit and a timing control unit to prevent problems such as damage to the heater caused by excessive heating time. The main function of the low-voltage detection unit is to stabilize the voltage. Once the power supply unit fails, Immediately alarm the control unit to terminate the work of the experimental device. The timing control unit is used to time the heating process. Once the upper limit of the set working time is exceeded, the heater will automatically stop working until it is restarted. The present invention is also provided with a control button unit and a working status indicator unit, which is beneficial for experimenters to better grasp and control the working status of the present invention.

Further, the head of the test tube is wrapped with a layer of insulating material, which is convenient to hold, avoids burns or scalds, and is also convenient for adding or taking out tobacco. The control circuit controls the heating of the test tube by separately controlling the three-way ceramic heating plate, so as to realize precise temperature regulation and control.

Further, the test tube is a cylindrical device made of heat-conducting material glass or red copper. A layer of insulating material with excellent thermal conductivity is arranged between the test tube and the heating chamber. The upper part of the test tube is wrapped with heat-insulating materials such as ceramics. At the same time The top of the test tube is provided with a piston cap with a central hole; the test tube is independent of the heater so that it can be replaced with a different type of test tube to hold the tobacco and collect the smoke.

Furthermore, a layer of first insulating and heat-conducting material and a second insulating and heat-conducting material with excellent thermal conductivity are arranged between the test tube and the heating chamber. On the one hand, the test tube and the heating chamber are more tightly bonded to enable more effective heat transfer. , the heating is more rapid and uniform, and at the same time, it also prevents the local heating temperature from being too high.

Further, the three ceramic heaters can be heated to about 600°C. One ceramic heater is placed at the bottom of the heating chamber, and the other two ceramic heaters are embedded in the heating chamber and evenly distributed around the test tube to ensure that the test tube is heated. Evenly, the three-way ceramic heating sheet can not only fully heat the tobacco, but also ensure that the heating time will not be too long.

Further, the size of the piston cover closely fits the test tube, which is used to seal the test tube to prevent smoke from overflowing from the edge, and the central hole opened on the piston cover makes it more convenient to test the smoke samples in the test tube.

Further, several temperature sensors are arranged to detect the temperature of different parts of the outer wall of the test tube.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a schematic diagram of the heater of the present invention.

Fig. 3 is a schematic diagram of the control circuit of the present invention.

In the figure, 1 is an adjustable cavity intelligent temperature-controlled tobacco dry-type low-temperature heating smoke generating device, 10 is a test tube, 101 is a piston cover, 102 is a central hole, 103 is an insulating material, 11 is a casing, and 12 is a Control circuit, 13 is a heater, 131 is a cylindrical heating cavity, 132 is a first insulating and heat-conducting material, 133 is a second insulating and heat-conducting material, 134 is a first ceramic heating sheet, 135 is a second ceramic heating sheet, and 136 is a The third ceramic heater, 137 is a temperature sensor, 138 is a temperature sensor, 139 is a temperature sensor, 140 is a temperature sensor, 141 is a thermal insulation material, 14 is a solid state relay, 15 is a solid state relay, 16 is a solid state relay, 17 18 is the second fan, 19 is the third fan, 20 is a relay, 21 is a switching power supply, 22 is a power switch, 3-1 is a temperature detection module, 3-2 is a relay drive module, 3-3 3-4 is a data storage unit, 3-5 is a control button unit, 3-6 is a working status indicator unit, 3-7 is a display drive unit, and 3-8 is an embedded computer system.

detailed description

The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Those who are familiar with this technology can understand the characteristics and functions of the present invention through this description. The proportions, structures, etc. in the drawings attached to this specification are only used to match the content described in the specification, but they do not limit the conditions for the implementation of the present invention, so they have no technical significance. As long as the functions and purposes that can be realized by the present invention are not affected, all should fall within the scope covered by the technology described in the present invention.

The invention discloses an adjustable cavity intelligent temperature-controlled tobacco dry-type low-temperature heating smoke generating device, which is used for dry-type low-temperature heating of tobacco and collecting the generated smoke for further detection. The heating control of the invention The temperature range is 10-500°C, and the temperature accuracy is 0.5°C.

As shown in Figures 1 and 2, the present invention is an adjustable intelligent temperature-controlled tobacco dry-type low-temperature heating smoke generating device 1 for heating tobacco and collecting the generated smoke, including a test for holding tobacco Tube 10, a shell 11 with a heater outlet, a control circuit 12 placed in the shell 11, and a heater 13 for heating the test tube 10; wherein, the test tube 10 and the heater 13 are all arranged in the shell 11; The top of the test tube 10 is provided with a piston cover 101. Both the test tube 10 and the piston cover 101 at the top of the test tube 10 are made of metal materials such as glass or red copper with high thermal conductivity. The tube 10 communicates internally. The size of the piston cover 101 should fit closely with the test tube 10, and is used to seal the test tube 10 to prevent the smoke from overflowing from the edge, and the central hole 102 provided makes it more convenient to test the smoke sample in the test tube 10. Insert the piston cover 101 into the test tube 10 and plug the central hole 102. When the heating is completed for detection of smoke components, the detection instrument starts to detect and analyze the smoke sample through the central hole 102. Wrap a layer of insulating and heat-insulating material 103 (such as ceramics) on the head of the test tube 10, which is convenient to hold, avoids burns or scalds, and is also convenient for adding or taking out tobacco.

Referring to Fig. 2, during operation, the test tube 10 is put into the heater 13 for heating operation after containing the tobacco. The heater 13 is made of an insulating and heat-conducting material, and includes a cylindrical heating chamber 131 with an open top. A heating part is provided for uniformly heating the test tube 10, the heating part is wrapped by an insulating and heat-conducting material, one end of the heating part is connected to the power supply, and the other end is connected to the control circuit 12; a temperature is set between the heating part and the insulating and heat-conducting material Sensor; wherein, the insulating and heat-conducting material is mica or heat-conducting rubber; the temperature sensor is a PT-100 platinum resistor, and the temperature sensor is connected to the control circuit 12, and the heating component is arranged on the inner wall and the bottom of the heating cavity 131, and the heating component is a heating wire Or a ceramic heating chip; wherein, the power of the heating wire is 100W, 50W or 50W; when the heating component is a ceramic heating chip, the heating component includes three ceramic heating chips, which are respectively the first ceramic heating chip 134, the second ceramic heating chip The ceramic heating plate 135 and the third ceramic heating plate 136 , the first ceramic heating plate 134 is located at the bottom of the test tube 10 , the second ceramic heating plate 135 and the third ceramic heating plate 136 are arranged around the test tube 10 . A first insulating and heat-conducting material 132 and a second insulating and heat-conducting material 133 are arranged between the heating chamber 131 and the three-way ceramic heating piece, specifically, the second ceramic heating piece 135 and the third ceramic heating piece 136 is wrapped by the first insulating and heat-conducting material 132 , and the first ceramic heating chip 134 is wrapped by the second insulating and heat-conducting material 133 .

The size of the opening of the heating chamber 131 is just the same as the outer diameter of the test tube 10, and the size coincides to ensure that the test tube 10 and the heating chamber 131 fit closely to make the heat conduction efficiency higher. The first insulating and heat-conducting material 132 and the second insulating and heat-conducting material 133 with excellent performance, on the one hand, make the test tube 10 and the heating chamber 131 fit closer to make the heating more rapid and uniform, and at the same time prevent local heating temperature from being too high Phenomenon, on the other hand, it also prevents emergencies such as heating sheet leakage. Wherein, the thermal insulation material 141 is asbestos, rock wool, aluminum silicate fiber paper or ceramic fiber paper; the housing 11 is also provided with a display unit connected to the control circuit 12, a control button unit and an indicator light unit.

The three ceramic heaters can be heated to about 600°C. One ceramic heater is placed at the bottom of the heating chamber 131, and the other two ceramic heaters are embedded in the heating chamber 131 and evenly distributed around the test tube 10 to ensure that the test tube 10 The heating is uniform, and the three-way ceramic heating sheet can not only fully heat the tobacco, but also ensure that the heating time will not be too long. One end of the three-way ceramic heating sheet is connected to the control switch and an external 220V AC power supply, and the other end is connected to a solid state relay. Specifically, the first ceramic heating sheet 134 is connected to the first solid state relay 14, and the second ceramic heating sheet 135 is connected to the second solid state relay. The solid-state relay 15 is connected, the third ceramic heater 136 is connected with the third solid-state relay 16, and the solid-state relay is connected with the control circuit 12 respectively, so the three-way ceramic heater can be controlled independently through the control circuit 12, and heat insulation is adopted The insulating material 141 wraps the outer wall of the heating chamber 131, on the one hand, it protects the internal components of the shell 11; Four temperature sensors are disposed on the inner wall of the heating chamber 131 , namely a first temperature sensor 137 , a second temperature sensor 138 , a third temperature sensor 139 and a fourth temperature sensor 140 . These four temperature sensors are successively arranged between the second ceramic heating plate 135 and the third ceramic heating plate 136 from top to bottom, and are close to the first insulating and heat-conducting material 132 of the outer wall of the test tube 10; these four temperature sensors are High-sensitivity, high-precision, platinum resistance PT-100 with a negative temperature coefficient is used for real-time detection and feedback of the temperature of the test tube 10, and these four temperature sensors are connected to the control circuit 12, so that the control circuit display unit can real-time Displays temperature measurements and changes.

In the present invention, there are three types of inner diameters for the test tubes containing tobacco to choose from. The outer diameters of the three types of test tubes are the same, which fit the heating chamber, and there are three types of inner diameters that can be replaced from small to large. The heater is composed of a heating chamber, three ceramic heating chips with different powers and four independent temperature sensors. The heating chamber is a cylindrical cavity made of thermally conductive insulating material, and its inner cavity matches the size of the test tube. , so that the test tube can be tightly inserted into the heating chamber to ensure more efficient transfer of heat energy. Three ceramic heaters with different powers are built into the heating cavity and directly contact the test tube, one is placed on the base of the heating chamber, and the other two channels are evenly distributed around the cylinder of the test tube. The built-in ceramic heater has a layer of insulation and thermal conductivity. The good material is in contact with the test tube, which not only ensures a more efficient transfer of heat energy, but also ensures that the tobacco is heated evenly. The four-way temperature sensors are evenly distributed on the inner wall of the heating chamber, and are connected with the control circuit as temperature feedback. At the same time, the shell is also provided with an external power supply access socket, and the control circuit controls the switch.

The casing 11 has three built-in fans, namely the first fan 17, the second fan 18 and the third fan 19, which are used to cool down the components in the casing. The three fans are connected to the control circuit 12 through the relay 20, and are controlled by the button Control the on and off of the fan, because the fan is manually controlled, so the experimenter himself decides when the fan starts and runs. In addition, there is a display module for displaying the temperature, a button module for controlling the operation of the heating device, and an indicator module for displaying the working state on the above-mentioned casing 11 .

The low-temperature heating and smoke generating device uses an external 220V AC power supply to work, and uses a switching power supply 21 to convert the power supply to supply power to the control circuit 12 and three fans. One end of the heater 13 is connected to an external 220V AC power supply through the power switch 22, and the other end It is connected to the control circuit 12 through three solid state relays.

As shown in Figure 3, the above-mentioned control circuit 12 placed in the casing adopts the embedded computer system 3-8 as the control center to realize intelligent control of temperature, and the main control objects include: temperature detection module 3-1, relay drive module 3 -2, a digital tube display module 3-3, a data storage unit 3-4, a control button unit 3-5 and a working status indicator unit 3-6.

The specific working process is as follows: first, the control circuit 12 and other external devices are powered on through the control switch, and the four-way high-precision, high-sensitivity temperature sensor platinum resistance PT-100 (ie, the temperature detection module 3-1) detects the current temperature of the heating chamber 131 , through the 14-bit A/D converter, the temperature information is converted into digital information and transmitted to the embedded computer system, and the embedded computer system controls the display drive unit 3-7 to realize the display of the current temperature information through the received digital information, and then the experiment The operator sets the expected temperature value through the control buttons, and the embedded computer system receives the set value, analyzes it through the incremental digital PID algorithm, and then controls the relay drive unit 3-2 to realize the control of the three-way ceramic heater and the fan. Work control, fast and precise temperature adjustment control. At the same time, the working state indicator unit 3-6 reflects the current working state of the experimental device in real time, and the display unit 3-3 also displays the current temperature change inside the heating chamber in real time. Moreover, the control circuit 12 also includes a low-voltage detection unit and a timing control unit to prevent problems such as damage to the heater caused by excessive heating time. The main function of the low-voltage detection unit is to stabilize the voltage. If there is a failure, immediately report to the control unit to terminate the working state of the experimental device and return to the standby state. In order to prevent safety hazards such as damage to the heater that may be caused by excessive heating time, the above-mentioned control circuit 12 has added a timing detection function. When the heater 13 starts heating, it will start timing and display the current heating time through the digital tube display unit 3-3. Once the upper limit of the normal working time of the experimental equipment is exceeded, it is regarded as an abnormal working state, and the embedded computer system will automatically stop the three-way ceramic heating chip, and the whole system will return to the standby state.

The incremental digital PID algorithm, that is, adopts a discretization method, calculates and obtains the control amount according to the deviation value at the sampling time through a formula, so as to realize control, and the specific formula is as follows:

Δu(k)=u(k)-u(k-1)=K _p [e(k)-e(k-1)]+K _I e(k)+K _D [e(k)-2e( k-1)+e(k-2)]

Among them: k is the sampling signal, the value is 0, 1, 2, ...;

e(k) is the deviation value of the kth sampling, and e(k-1) is the sampling deviation value of the k-1th time;

u(k) is the kth output value of the PID controller;

K _p is a proportional coefficient, K _I is an integral coefficient, and K _D is a differential coefficient;

Δu(k) is the increment of the control amount of the kth time relative to the k-1th time.

The specific implementation process is: the control system detects the current temperature value through the PT-100 platinum resistance temperature sensor every 100ms, and then performs an incremental PID calculation every 500ms, and obtains temperature control through real-time temperature change and the set target temperature calculation The increment is then analyzed and processed by the embedded control center to achieve precise temperature adjustment. Finally, Kp = 2.0, K _{I =} 3.0, and K _D = 2.0 were used.

The cavity-adjustable intelligent temperature-controlled tobacco dry-type low-temperature heating smoke-generating device proposed by the present invention uses replaceable test tubes of different types independent of the heater to realize the storage of tobacco and the collection of smoke. Evenly distributed and independently working ceramic heating plates heat the test tube evenly, precisely adjust and control the temperature, and effectively heat the tobacco evenly and rapidly. And four temperature sensors are used to realize real-time feedback and display of temperature. Therefore, the present invention effectively overcomes various shortcomings of existing tobacco heating devices, thereby having higher use value.

The foregoing is merely an exemplary description of the principles and functional effects of the present invention, and is not intended to limit the present invention. It is hoped that any person familiar with the technology will not deviate from the spirit and scope of the present invention to make modifications or changes, which should still be covered by the claims of the present invention.

Claims (10)

1. the raw cigarette device of cavity adjustable type intelligent temperature control Nicotiana tabacum L. dry type low-temperature heat, it is characterised in that include shell (11), The heater (13) that developmental tube (10) is provided with the cylindric developmental tube (10) for holding Nicotiana tabacum L. in shell (11), heat with And control circuit (12), developmental tube (10) is all connected with control circuit (12) with heater (13)；Wherein, heater (13) includes Open-topped cylindrical shape heating chamber (131), developmental tube (10) is arranged in cylindrical shape heating chamber (131), heats chamber (131) being provided with the heater block uniformly heated developmental tube (10) in, heater block is by insulating heat-conduction material bag Wrap up in；Developmental tube (10) top is provided with piston lid (101), and piston lid (101) center offers a centre bore (102), Centre bore (102) is internal with developmental tube (10) to be connected.

The raw cigarette device of a kind of cavity adjustable type intelligent temperature control Nicotiana tabacum L. dry type low-temperature heat the most according to claim 1, it is special Levying and be, described heater block one end is connected with power supply, and the other end is connected with control circuit (12)；Described heater block and insulation If being provided with dry temperature sensor between Heat Conduction Material.

The raw cigarette device of a kind of cavity adjustable type intelligent temperature control Nicotiana tabacum L. dry type low-temperature heat the most according to claim 2, it is special Levying and be, described insulating heat-conduction material is Muscovitum or heat conductive rubber.

The raw cigarette device of a kind of cavity adjustable type intelligent temperature control Nicotiana tabacum L. dry type low-temperature heat the most according to claim 2, it is special Levying and be, described temperature sensor is PT-100 platinum resistance, and temperature sensor is connected with control circuit (12).

The raw cigarette device of a kind of cavity adjustable type intelligent temperature control Nicotiana tabacum L. dry type low-temperature heat the most according to claim 1, it is special Levying and be, described heater block is arranged on inwall and the bottom of heating chamber (131)；Described heater block is heater strip or pottery adds Backing；Wherein, described heater strip power is 100W, 50W or 50W.

The raw cigarette device of a kind of cavity adjustable type intelligent temperature control Nicotiana tabacum L. dry type low-temperature heat, its It is characterised by, when described heater block is ceramic heating flake, is provided with in heating chamber (131) for developmental tube (10) is heated Three road ceramic heating flakes, the respectively first ceramic heating flake (134), the second ceramic heating flake (135) and the 3rd ceramic heat Sheet (136), the first ceramic heating flake (134) is positioned at the bottom of developmental tube (10), the second ceramic heating flake (135) and the 3rd pottery Porcelain heating plate (136) is arranged on developmental tube (10) around；Heating chamber (131) and three road ceramic heating flakes between be provided with for Wrap up the first insulating heat-conduction material (132) and second insulating heat-conduction material (133) of three road ceramic heating flakes；Second ceramic heat Sheet (135) and the 3rd ceramic heating flake (136) are wrapped up by the first insulating heat-conduction material (132), the first ceramic heating flake (134) Wrapped up by the second insulating heat-conduction material (133).

The raw cigarette device of a kind of cavity adjustable type intelligent temperature control Nicotiana tabacum L. dry type low-temperature heat the most according to claim 1, it is special Levying and be, described heating chamber (131) openings of sizes is identical with developmental tube (10) external diameter；Described heating chamber (131) outside arranges one Layer insulation insulant (141) will heating chamber (131) outer wall parcel；Described developmental tube (10) head wrap up one layer insulation every Hot material.

The raw cigarette device of a kind of cavity adjustable type intelligent temperature control Nicotiana tabacum L. dry type low-temperature heat the most according to claim 7, it is special Levying and be, described insulation insulant (141) is asbestos, rock wool, aluminum silicate fiber paper or ceramic fiber paper；Described shell (11) display unit, control push-button unit and the indicator unit being connected with control circuit (12) also it is provided with on.

The raw cigarette device of a kind of cavity adjustable type intelligent temperature control Nicotiana tabacum L. dry type low-temperature heat the most according to claim 1, it is special Levying and be, the piston lid (101) at described developmental tube (10) and developmental tube top all uses glass or red copper to make.

The raw cigarette device of a kind of cavity adjustable type intelligent temperature control Nicotiana tabacum L. dry type low-temperature heat the most according to claim 1, it is special Levying and be, described shell (11) is upper also has on and off switch (22) external 220V alternating current power supply；Shell is provided with for right in (11) The electric fan of element cooling in shell, and electric fan is connected with control circuit (12) by relay (20).