阅读说明：本技术 一种能够用于电加热卷烟的测试系统 (Test system capable of being used for electrically heating cigarettes ) 是由 高峄涵 谢焰 卢乐华 刘广超 高洁 于 2021-10-15 设计创作，主要内容包括：本发明提供一种能够用于电加热卷烟的测试系统,包括载体单元、电加热件、烟雾通道管、控温机构。所述载体单元放置气溶胶形成基质；所述电加热件用于加热所述气溶胶形成基质；所述烟雾通道管的一端与所述载体单元联通,所述烟雾通道管的另一端联通抽吸组件；所述控温机构连接所述电加热件,用于测量所述载体单元内的温度并控制所述电加热件的开/断。该测试系统可有效的模拟出电加热卷烟的加热过程并测量出相关参数,有利于电加热卷烟的研发设计与产品优化。(The invention provides a testing system capable of being used for electrically heating cigarettes. The carrier unit holds an aerosol-forming substrate; the electrical heating element is for heating the aerosol-forming substrate; one end of the smoke passage pipe is communicated with the carrier unit, and the other end of the smoke passage pipe is communicated with the suction assembly; the temperature control mechanism is connected with the electric heating element and is used for measuring the temperature in the carrier unit and controlling the on/off of the electric heating element. The test system can effectively simulate the heating process of the electrically heated cigarette and measure related parameters, and is beneficial to research, development and design and product optimization of the electrically heated cigarette.)

1. A test system usable with electrically heated cigarettes, comprising:

a carrier unit to position an aerosol-forming substrate;

an electrical heating element for heating the aerosol-forming substrate;

a smoke passage pipe, one end of which is communicated with the carrier unit, and the other end of which is communicated with a suction assembly;

and the temperature control mechanism is connected with the electric heating element and is used for measuring the temperature in the carrier unit and controlling the on/off of the electric heating element.

2. A test system as claimed in claim 1, usable for electrically heating cigarettes, wherein the electric heating elements comprise a first electric heating element for externally heating the aerosol-forming substrate and/or a second electric heating element for internally heating the aerosol-forming substrate.

3. The testing system which can be used to electrically heat cigarettes according to claim 1, wherein the smoke passage tube comprises:

one end of the first channel is communicated with the carrier unit, and the other end of the first channel is communicated with the first suction assembly;

one end of the second channel is communicated with the first channel, and the other end of the second channel is communicated with the second suction assembly.

4. The testing system that can be used to electrically heat cigarettes according to claim 3, further comprising:

a first switch disposed on the first channel at a location between the second channel and the first suction assembly;

a second switch disposed on the second channel.

5. The testing system that can be used to electrically heat cigarettes according to claim 3, further comprising:

an air passage in communication with the second passage for introducing air into the second passage.

6. The testing system capable of being used with electrically heated cigarettes according to claim 5,

the first pumping assembly comprises a first gas flow meter and a first vacuum pump, the first vacuum pump is connected with the first channel through the first gas flow meter, and the first gas flow meter is used for controlling the pumping speed of the first vacuum pump;

the second pumping assembly comprises a second gas flow meter and a second vacuum pump, the second vacuum pump is connected with the second channel through the second gas flow meter, and the second gas flow meter is used for controlling the pumping speed of the second vacuum pump;

the air passage is provided with a third gas flow meter which is used for controlling the air inlet speed of the air passage.

7. A testing system usable with electrically heated cigarettes according to claim 1 or 2, further comprising a measuring assembly comprising:

an aerosol filter disposed within the first channel at a location between the first suction assembly and the second channel;

a weigher for measuring the total mass of aerosol smoke filtered out by the aerosol filter.

8. The testing system that can be used to electrically heat cigarettes according to claim 7, wherein the measuring assembly further comprises:

and the air inlet of the scanning electric mobility aerosol particle size spectrometer is connected with the second channel.

9. The testing system capable of being used with electrically heated cigarettes according to claim 7,

the measuring component also comprises a temperature acquisition instrument and a temperature thermocouple connected with the temperature acquisition instrument;

the carrier unit and the first channel are both provided with a plurality of temperature measuring holes, and the temperature measuring thermocouples are inserted into the temperature measuring holes to measure the temperature in the carrier unit and the first channel.

10. The testing system which can be used to electrically heat cigarettes according to claim 9, wherein the temperature control mechanism comprises:

the negative feedback thermocouple is used for being inserted into the temperature measuring hole to measure the temperature;

a temperature controller connected to the negative feedback thermocouple and the electric heating member and controlling on/off of the electric heating member according to a difference between a temperature detected by the negative feedback thermocouple and a predetermined temperature threshold.

Technical Field

The invention relates to the technical field of electrically heated cigarettes, in particular to a test system capable of being used for electrically heated cigarettes.

Background

An electric heating cigarette belongs to a novel tobacco product. The electrically heated cigarette has no combustion phenomenon in the working process, and the generation of harmful substances caused by high-temperature combustion is effectively avoided. Compared with the traditional cigarette, the electrically heated cigarette is relatively healthier and more environment-friendly.

In the process of developing the electrically heated cigarette, it is necessary to evaluate the performance of the electrically heated cigarette by measuring relevant parameters of the electrically heated cigarette, including aerosol-forming substrate temperature, smoke temperature, total mass of aerosol smoke, and aerosol particle number median size distribution, to optimize the quality of the electrically heated cigarette. However, the geometric dimension of the electrically heated cigarette is very limited, which causes a complex measurement process of some experimental parameters, and is not beneficial to related technicians to research, develop and design and optimize the product of the electrically heated cigarette.

Disclosure of Invention

In view of this, the invention provides a testing system for electrically heated cigarettes, which can effectively simulate the heating process of electrically heated cigarettes and measure related parameters, and is beneficial to research, development and design and product optimization of the electrically heated cigarettes.

In order to solve the technical problems, the invention adopts the following technical scheme:

the test system for electrically heating cigarettes provided by the embodiment of the invention comprises:

a carrier unit to position an aerosol-forming substrate;

an electrical heating element for heating the aerosol-forming substrate;

a smoke passage pipe, one end of which is communicated with the carrier unit, and the other end of which is communicated with a suction assembly;

and the temperature control mechanism is connected with the electric heating element and is used for measuring the temperature in the carrier unit and controlling the on/off of the electric heating element.

Further, the electrical heating elements comprise a first electrical heating element for externally heating the aerosol-forming substrate and/or a second electrical heating element for internally heating the aerosol-forming substrate.

Further, the smoke passage tube includes:

one end of the first channel is communicated with the carrier unit, and the other end of the first channel is communicated with the first suction assembly;

one end of the second channel is communicated with the first channel, and the other end of the second channel is communicated with the second suction assembly.

Further, still include:

a first switch disposed on the first channel at a location between the second channel and the first suction assembly;

a second switch disposed on the second channel.

Further, still include:

an air passage in communication with the second passage for introducing air into the second passage.

Further, the first pumping assembly comprises a first gas flow meter and a first vacuum pump, the first vacuum pump is connected with the first channel through the first gas flow meter, and the first gas flow meter is used for controlling the pumping speed of the first vacuum pump;

the second pumping assembly comprises a second gas flow meter and a second vacuum pump, the second vacuum pump is connected with the second channel through the second gas flow meter, and the second gas flow meter is used for controlling the pumping speed of the second vacuum pump;

the air passage is provided with a third gas flow meter which is used for controlling the air inlet speed of the air passage.

Further, still include the measurement subassembly, the measurement subassembly includes:

an aerosol filter disposed within the first channel at a location between the first suction assembly and the second channel;

a weigher for measuring the total mass of aerosol smoke filtered out by the aerosol filter.

Further, the measurement assembly further comprises:

and the air inlet of the scanning electric mobility aerosol particle size spectrometer is connected with the second channel.

Furthermore, the measuring component also comprises a temperature acquisition instrument and a temperature thermocouple connected with the temperature acquisition instrument;

the carrier unit and the first channel are both provided with a plurality of temperature measuring holes, and the temperature measuring thermocouples are inserted into the temperature measuring holes to measure the temperature in the carrier unit and the first channel.

Further, the temperature control mechanism comprises:

the negative feedback thermocouple is used for being inserted into the temperature measuring hole to measure the temperature;

a temperature controller connected to the negative feedback thermocouple and the electric heating member and controlling on/off of the electric heating member according to a difference between a temperature detected by the negative feedback thermocouple and a predetermined temperature threshold.

The technical scheme of the invention at least has one of the following beneficial effects:

the test system for the electrically heated cigarette provided by the embodiment of the invention can effectively simulate the heating process of the electrically heated cigarette and measure the relevant parameters, and is beneficial to research, development and design and product optimization of the electrically heated cigarette.

Drawings

Fig. 1 is a schematic structural diagram of a testing system capable of being used for electrically heating cigarettes according to an embodiment of the present invention.

Reference numerals: 1. a carrier unit; 2. a first electric heating element; 3. a second electric heating element; 4. a first channel; 5. a second channel; 6. a first switch; 7. a second switch; 8. an air passage; 9. a first gas flow meter; 10. a first vacuum pump; 11. a second gas flow meter; 12. a second vacuum pump; 13. a third gas flow meter; 14. an aerosol filter; 15. a weighing meter; 16. scanning an electric mobility aerosol particle size spectrometer; 17. a temperature acquisition instrument; 18. a temperature thermocouple; 19. a temperature measuring hole; 20. a negative feedback thermocouple; 21. a temperature controller.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.

The following will first describe in detail a test system of the present invention that can be used for electrically heated cigarettes with reference to the accompanying drawings.

As shown in fig. 1, the testing system capable of being used for electrically heating cigarettes according to the embodiment of the present invention includes a carrier unit 1, an electric heating element, a smoke passage tube, and a temperature control mechanism. The carrier unit 1 holds an aerosol-forming substrate; an electrical heating element for heating the aerosol-forming substrate; one end of the smoke passage pipe is communicated with the carrier unit 1, and the other end of the smoke passage pipe is communicated with the suction component; the temperature control mechanism is connected with the electric heating element and is used for measuring the temperature in the carrier unit 1 and controlling the on/off of the electric heating element. Preferably, the carrier unit 1 is a hollow sleeve.

The test system can effectively simulate the heating process of the electrically heated cigarette, and is beneficial to research, development and design and product optimization of the electrically heated cigarette.

Further, the electric heating elements comprise a first electric heating element 2 for externally heating the aerosol-forming substrate and/or a second electric heating element 3 for internally heating the aerosol-forming substrate. The aerosol-forming substrate is preferably a solid tobacco substrate, and more preferably the solid tobacco substrate may be in the form of granules, powder, flakes or the like.

Set up two electric heating members and can carry out inside and outside heating to aerosol formation substrate as required, satisfied various experimental demands, simulate the heating process of electric heating cigarette more really.

Further, as shown in fig. 1, the smoke passage tube includes a first passage 4, a second passage 5. One end of the first channel 4 is communicated with the carrier unit 1, and the other end of the first channel 4 is provided with a first suction assembly; one end of the second channel 5 is communicated with the first channel 4, and the other end of the second channel 5 is provided with a second suction assembly.

The smoke channel pipe can be set into a multi-branch channel, is not limited to two channels of the invention, and the multi-channel structure can provide convenience for testing various data and is beneficial to the realization of the multifunctional integration of the experiment table.

Further, as shown in fig. 1, the switch device further includes a first switch 6 and a second switch 7. The first switch 6 is arranged on the first channel 4 and is positioned between the second channel 5 and the first suction assembly; the second switch 7 is provided on the second channel 5.

In the testing process, the two switches are matched with each other, so that the second half section of the first channel 4 and the second channel 5 are separated from each other and do not influence each other, and the measuring accuracy is improved.

Further, as shown in fig. 1, the experiment table further comprises an air channel 8, and the air channel 8 is communicated with the second channel 5 and is used for introducing air into the second channel 5, so that the smoke is diluted and the test requirements of the smoke with various concentrations are met.

Further, as shown in fig. 1, the first pumping assembly comprises a first gas flow meter 9, a first vacuum pump 10, the first vacuum pump 10 is connected to the first passage 4 through the first gas flow meter 9, and the first gas flow meter 9 is used for controlling the pumping speed of the first vacuum pump 10; the second pumping assembly comprises a second gas flow meter 11 and a second vacuum pump 12, the second vacuum pump 12 is connected with the second channel 5 through the second gas flow meter 11, and the second gas flow meter 11 is used for controlling the pumping speed of the second vacuum pump 12; the air passage 8 is provided with a third gas flow meter 13, and the third gas flow meter 13 is used to control the intake air speed of the air passage 8.

Through the cooperation of gas flowmeter and vacuum pump, realize the guide to smog and air, easy operation easily makes.

Further, as shown in fig. 1, a measuring assembly is also included. The measuring assembly comprises an aerosol filter 14, a weight scale 15. An aerosol filter 14 is disposed within the first channel 4 at a location between the first suction assembly and the second channel 5; the weight meter 15 is used to measure the total mass of aerosol smoke filtered by the aerosol filter 14.

The process of measuring the total mass of aerosol smoke is: firstly, the simulation heating state needs to be completed, then the first suction assembly sucks the smoke onto the aerosol filter disc 14, the aerosol filter disc 14 continuously filters the aerosol in the process, the aerosol filter disc 14 is taken out after the smoke is sucked for a certain time, and then the weight of the aerosol filter disc 14 is weighed by the weighing meter 15 to obtain the total mass of the aerosol smoke.

Further, as shown in fig. 1, the measurement assembly also includes a scanning mobility aerosol particle size spectrometer 16. The air inlet of the scanning electromigration aerosol particle size spectrometer 16 is connected to the second channel 5.

The process of measuring aerosol particle number median size distribution is as follows: firstly, the simulation heating state needs to be completed, then the second smoking assembly smokes the smoke to the scanning electric mobility aerosol particle size spectrometer 16, and the scanning electric mobility aerosol particle size spectrometer 16 analyzes the smoke, so that the condition of the aerosol particle number median size distribution is obtained.

Further, as shown in fig. 1, the measuring assembly further includes a temperature collector 17 and a temperature thermocouple 18 connected thereto; a plurality of temperature measuring holes 19 are formed on the carrier unit 1 and the first channel 4, and a temperature thermocouple 18 is inserted into the temperature measuring holes 19 to measure the temperature in the carrier unit 1 and the first channel 4.

The experiment table is provided with temperature measuring holes 19 at a plurality of positions, so that the temperature measuring couples can measure the temperatures of different positions according to requirements.

Further, as shown in fig. 1, the temperature control mechanism includes a negative feedback thermocouple 20 and a temperature controller 21. The negative feedback thermocouple 20 is inserted into the temperature measuring hole 19 for measuring temperature; the temperature controller 21 is connected to the negative feedback thermocouple 20 and the electric heating member, and controls on/off of the electric heating member according to a difference between the temperature detected by the negative feedback thermocouple 20 and a predetermined temperature threshold.

The specific test process of the test system capable of being used for electrically heating the cigarette comprises the following steps:

when the total mass of aerosol smoke needs to be measured, the first switch 6 is turned on, the second switch 7 is turned off, the heating assembly is controlled by the temperature controller 21 to heat the aerosol-forming substrate, the smoke is sucked onto the aerosol filter 14 through the first suction assembly, the aerosol filter 14 is taken out after the smoke is sucked for a preset time, and the total mass of the aerosol smoke is weighed through the weighing meter 15 to obtain the total mass of the aerosol smoke. When aerosol particle size distribution needs to be measured, the second switch 7 is turned on, the first switch 6 is turned off, then smoke is sucked to the scanning electric mobility aerosol particle size spectrometer 16 through the second suction assembly, and after the smoke is sucked for a preset time, the aerosol particle number median particle size distribution condition can be obtained. Meanwhile, in the whole heating process, the temperature collector 17 can collect the temperature of the aerosol-forming substrate and the smoke.

The foregoing is a preferred embodiment of the present invention, and it should be noted that it would be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the principles of the invention, and such modifications and enhancements are also considered to be within the scope of the invention.