Novel tobacco product aerosol component automatic extraction device

Abstract

The utility model discloses a novel tobacco product aerosol component automatic extraction device which comprises a frame, an extraction unit, a sample introduction unit, a suction unit, a drying unit and a controller, the extraction unit comprises an upper extraction cavity, a lower extraction cavity and a smoke trap, and the smoke trap is installed between the upper extraction cavity and the lower extraction cavity in a sealed mode; the sample introduction unit is communicated with the upper extraction cavity so as to convey extraction liquid or cleaning liquid to the upper extraction cavity; the suction unit is communicated with the upper extraction cavity and is used for sucking and resetting liquid in the upper extraction cavity; the drying unit is used for being communicated with a gas source and drying the extraction unit. According to the novel tobacco product aerosol component automatic extraction device, the trap does not need to be opened and wiped, measurement result errors caused by a traditional oscillation mode are reduced, operation is simplified, manual cleaning and drying operation is avoided, and the extraction efficiency of the novel tobacco product aerosol component is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke components of new tobacco products, and more specifically, to an automatic extraction device for aerosol components of new tobacco products. Background Art

[0002] New tobacco products usually refer to heated cigarettes and electronic cigarettes. Compared with traditional tobacco products, new tobacco products do not require combustion, reducing the harmful components produced by high-temperature combustion and decomposition of tobacco. Therefore, they are becoming more and more popular among smokers.

[0003] At present, the traditional oscillation method is used to extract the aerosol components of new tobacco products. The moisture content in the aerosol of new tobacco products is much higher than that of traditional tobacco products. When the smoke collector is manually opened to remove the filter, there is a problem of moisture loss and the collector adsorbing particulate matter, which introduces errors in the measurement results of the particulate matter. Therefore, the existing filter extraction method is not suitable for new tobacco products.

[0004] In addition, the Chinese utility model patent with publication number CN111366664A discloses an in-situ extraction device and method for total particulate matter in mainstream cigarette smoke, which places a smoke collector in an extraction pool, draws an extraction solvent through a power device to fill the extraction pool, and extracts the smoke collector. After the extraction is completed, the extraction pool is cleaned with inert gas, but the extraction pool is full of extraction liquid, resulting in a waste of extraction liquid. The aperture of the smoke collector is too small, and the filter extraction effect cannot be achieved in the extraction pool, and the smoke collector needs to be manually cleaned. , which is difficult to clean and will affect the subsequent test results; the Chinese utility model patent with publication number CN113655154A discloses an in-situ extractor and test method suitable for measuring moisture in flue gas, which connects the upper extraction chamber and the lower extraction chamber into a passage, and the upper piston and the lower piston reciprocate up and down at the same time, pushing the extractant to circulate back and forth between the upper extraction chamber and the lower extraction chamber, so that the circulated reciprocating flow passes through the flue gas collector, but the device uses two upper and lower linear motors as power sources, the control is cumbersome and the efficiency is low.

[0005] Therefore, it is necessary to solve the above technical problems. Utility Model Content

[0006] In view of this, the purpose of the utility model is to propose an automatic extraction device for aerosol components of new tobacco products, so as to reduce the measurement result error caused by the traditional oscillation method, simplify the operation, avoid manual cleaning and drying operations, and improve the extraction efficiency of aerosol components of new tobacco products.

[0007] Based on the above purpose, the utility model provides a novel aerosol component automatic extraction device for tobacco products, comprising a frame, an extraction unit, a sampling unit, a suction unit, a drying unit, and a controller, wherein: the extraction unit, the sampling unit, the suction unit, and the drying unit are all installed on the frame; the extraction unit comprises an upper extraction chamber, a lower extraction chamber, and a smoke collector, the smoke collector is used to install a filter, and the smoke collector is sealed and installed between the upper extraction chamber and the lower extraction chamber; the sampling unit is connected to the upper extraction chamber , to deliver extraction liquid or cleaning liquid to the upper extraction chamber; the suction unit is connected to the upper extraction chamber, and sucks and resets the liquid in the upper extraction chamber, and the lower extraction chamber is used to hold the extracted solution; the drying unit is used to be connected to the gas source, and the gas source is connected to both the upper extraction chamber and the lower extraction chamber to deliver gas to the upper extraction chamber and the lower extraction chamber, and dry the extraction unit; the controller is communicatively connected to the extraction unit, the sampling unit, the suction unit, and the drying unit.

[0008] Optionally, the injection unit includes a syringe pump and a switching valve, the extraction unit is multiple, the switching valve includes multiple extraction channels, liquid inlet channels, injection ports, waste liquid channels, and cleaning liquid channels, the multiple extraction channels are connected to the multiple extraction units one-to-one, the syringe pump is connected to the injection port of the switching valve, the liquid inlet channel is used to be connected to the extraction liquid bottle, the waste liquid channel is used to be connected to the waste liquid bottle, and the cleaning liquid channel is used to be connected to the cleaning liquid bottle.

[0009] Optionally, there are multiple suction units, and the multiple suction units are arranged in a one-to-one correspondence with the extraction units. The suction unit includes an airtight injector and a linear drive mechanism. The outlet of the airtight injector is connected to the upper extraction chamber. The linear drive mechanism drives the airtight injector to reciprocately suck and reset the liquid in the upper extraction chamber. The controller is communicatively connected with the linear drive mechanism.

[0010] Optionally, the linear drive mechanism is an electric slide, which is slidably mounted on the frame, and the airtight injector includes a piston rod and a main body that slides along the piston rod, the piston rod is fixedly mounted on the frame, and the main body is fixedly mounted on the electric slide, and the sliding of the electric slide drives the main body to slide along the piston rod to suck and reset the liquid in the extraction chamber.

[0011] Optionally, a calibration unit is further included, which is installed on the frame. The calibration unit includes a calibration bottle and a calibration connector. The switching valve also includes a calibration channel, which is connected to the injection unit. One end of the calibration connector is connected to the calibration channel, and the other end of the calibration connector is arranged above the calibration bottle. The calibration bottle is used to hold the extraction liquid output from the calibration connector.

[0012] Optionally, a liquid level sensor is provided in the calibration bottle, and the liquid level sensor is communicatively connected to the controller.

[0013] Optionally, the lower extraction chamber includes an adapter seat, a suction pipe, a lower extraction tube, and a collecting vessel. The adapter seat is installed on the frame, the suction pipe is located inside the lower extraction tube, the upper end of the suction pipe is sealed and connected and installed on the top of the adapter seat, the lower end of the smoke collector is sealed and connected and installed on the top of the adapter seat, the upper end of the lower extraction tube is sealed and installed on the bottom of the adapter seat, the lower end of the lower extraction tube is provided with a drain valve, and the collecting vessel is located below the lower extraction tube for collecting liquid discharged from the drain valve.

[0014] Optionally, the extraction unit further includes a suction valve, an upper air pressure valve, a lower air pressure valve and a three-way joint, the drying unit further includes an upper nitrogen valve and a lower nitrogen valve, the gas source is connected to the upper nitrogen valve and the lower nitrogen valve, the three-way joint includes a first end, a second end and a third end, the upper extraction chamber includes an upper extraction tube and an extraction cover sealedly installed on the upper extraction tube, the extraction cover is provided with an upper air pressure port and a liquid inlet, the liquid inlet is connected to the extraction channel, the outlet of the airtight injector is connected to the suction valve, the first end is installed on the upper air pressure valve, the second end is installed on the upper air pressure port, and the third end is installed on the upper nitrogen valve; when the suction valve and the upper air pressure valve are both closed, the The suction valve is connected with the upper air pressure valve, and the upper air pressure port is connected with the upper air pressure valve; when the suction valve and the drain valve are both opened, the suction valve is connected with the air, and when the upper nitrogen valve is opened, the gas in the air source transports the gas into the upper extraction chamber; when the upper air pressure valve is opened, the upper air pressure valve is connected with the air; a lower air pressure port is provided on the adapter, and the lower air pressure port is connected with the lower air pressure valve, and the lower air pressure valve is connected with the lower nitrogen valve; when the lower air pressure valve is opened and the lower nitrogen valve is closed, the lower air pressure port is connected with the air to allow air to enter the lower extraction chamber; when the lower nitrogen valve is opened and the lower air pressure valve is closed, the air source transports gas into the lower extraction chamber.

[0015] Optionally, a photoelectric switch baffle is provided on the linear drive mechanism, and two photoelectric switches used in conjunction with the photoelectric switch baffle are provided on the frame, and the photoelectric switches are communicatively connected with the controller.

[0016] Optionally, a toggle clamp is provided above the extraction cover, and the toggle clamp is mounted on the frame.

[0017] Optionally, the frame includes two upper and lower limit groove pillars, each of which is a rectangular block structure, and a front end of the limit groove pillar is provided with an arc-shaped recessed portion matching the upper extraction tube to achieve the limitation of the upper extraction tube.

[0018] Optionally, the lower extraction chamber also includes two support columns and a glass connecting plate, the glass connecting plate is installed on the frame, the lower extraction tube is a glass tube, the upper ends of the two support columns are fixedly installed on the adapter and are respectively located on both sides of the glass tube, the lower end of the glass tube is installed on the glass connecting plate, a liquid hole is opened on the glass connecting plate, and the drain valve is installed in the liquid hole.

[0019] Optionally, the drying unit further includes an air source processing component, one end of which is connected to the air source, and the other end of which is connected to both the upper nitrogen valve and the lower nitrogen valve.

[0020] The utility model provides a novel automatic extraction device for aerosol components of tobacco products, comprising a frame, an extraction unit, a sampling unit, a suction unit, a drying unit and a controller. First, a smoke collector is sealed and installed between an upper extraction chamber and a lower extraction chamber, and the extraction unit, the sampling unit, the suction unit and the drying unit are all installed on the frame; the controller controls the sampling unit to absorb extraction liquid and transport the extraction liquid to the upper extraction chamber, and the controller controls the suction unit to perform a reciprocating action of suction and reset on the extraction unit, that is, a combination of positive pressure and negative pressure is used to extract the filter disc, and the extracted solution is collected in the lower extraction chamber; then, after the extraction is completed, the controller controls the sampling unit to absorb cleaning liquid and transport the cleaning liquid to the upper extraction chamber, and the controller controls the suction unit to perform a reciprocating action of suction and reset on the cleaning liquid in the upper extraction chamber to clean the extraction unit; finally, the controller controls the drying unit to transport gas to the upper extraction chamber and the lower extraction chamber at the same time to dry the extraction unit. The novel tobacco product aerosol component automatic extraction device provided by the utility model does not need to open and wipe the smoke collector when in use, thereby reducing the measurement result error caused by the traditional oscillation method, simplifying the operation, avoiding manual cleaning and drying operations, and improving the extraction efficiency of the novel tobacco product aerosol components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, which will help to understand the purpose and advantages of the present invention, wherein:

[0022] Figure 1 This is a schematic structural diagram of a novel tobacco product aerosol component automatic extraction device according to an embodiment of the utility model;

[0023] Figure 2 for Figure 1 A local enlarged view at A in FIG.

[0024] Figure 3 for Figure 1 A local enlarged view at B in FIG.

[0025] Figure 4 This is a first view of a novel tobacco product aerosol component automatic extraction device according to an embodiment of the utility model;

[0026] Figure 5 for Figure 4 A local enlarged view at C in the figure;

[0027] Figure 6 A second view of the automatic extraction device for aerosol components of novel tobacco products according to an embodiment of the utility model;

[0028] Figure 7 It is a front view of a novel tobacco product aerosol component automatic extraction device according to an embodiment of the utility model;

[0029] Figure 8 A top view of a novel tobacco product aerosol component automatic extraction device according to an embodiment of the utility model;

[0030] Fig. 9 for Figure 8 Sectional view at DD;

[0031] Fig.10 This is a schematic diagram of the structure of a switching valve in a novel tobacco product aerosol component automatic extraction device according to an embodiment of the utility model;

[0032] Fig.11 This is a schematic diagram of the installation of a sampling unit, a suction valve, an upper air pressure valve, a lower air pressure valve, an upper nitrogen valve, a lower nitrogen valve and a switching valve in a novel tobacco product aerosol component automatic extraction device according to an embodiment of the utility model.

[0033] Description of reference numerals:

[0034] 1: frame; 2: extraction unit; 3: injection unit; 4: suction unit; 5: drying unit; 6: controller; 7: upper extraction chamber; 8: lower extraction chamber; 9: fume collector; 10: injection pump; 11: switching valve; 12: extraction channel; 13: liquid inlet channel; 14: injection port; 15: waste liquid channel; 16: cleaning liquid channel; 17: extraction liquid bottle; 18: waste liquid bottle; 19: cleaning liquid bottle; 20: gas-tight injector; 21: linear drive mechanism; 22: electric slide; 23: calibration unit; 24: calibration bottle; 25: calibration connector; 26: calibration channel; 27: adapter; 28 : Suction tube; 29: Lower extraction tube; 30: Collecting vessel; 31: Suction valve; 32: Upper air pressure valve; 33: Lower air pressure valve; 34: Three-way connector; 35: Upper nitrogen valve; 36: Lower nitrogen valve; 37: Upper air pressure port; 38: Liquid inlet; 39: Photoelectric switch baffle; 40: Photoelectric switch; 41: Elbow clamp; 42: Limiting groove support; 43: Support column; 44: Glass connecting plate; 45: Drain valve; 46: Gas source processing unit; 47: Upper extraction tube; 48: Extraction cover; 49: Fixing plate; 50: Gas source; 51: Calibration support; 52: Limiting seat; 53: Piston rod; 54: Lower air pressure port. DETAILED DESCRIPTION

[0035] The present invention is described in detail below in conjunction with the embodiments. The same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0036] like Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, the novel aerosol component automatic extraction device of the novel tobacco product provided by the utility model comprises a frame 1, an extraction unit 2, a sampling unit 3, a suction unit 4, a drying unit 5, and a controller 6, wherein: the extraction unit 2, the sampling unit 3, the suction unit 4, and the drying unit 5 are all installed on the frame 1; the extraction unit 2 comprises an upper extraction chamber 7, a lower extraction chamber 8, and a smoke collector 9, the smoke collector 9 is used to install a filter, and the smoke collector 9 is sealed and installed between the upper extraction chamber 7 and the lower extraction chamber 8; the sampling unit 3 is connected to the upper extraction chamber 7 The upper and lower extraction chambers 7 are connected to each other to deliver extraction liquid or cleaning liquid to the upper extraction chamber 7; the suction unit 4 is connected to the upper extraction chamber 7, and sucks and resets the liquid in the upper extraction chamber 7, and the lower extraction chamber 8 is used to hold the extracted solution; the drying unit 5 is used to be connected to the gas source 50, and the gas source 50 is connected to both the upper extraction chamber 7 and the lower extraction chamber 8 to deliver gas to the upper extraction chamber 7 and the lower extraction chamber 8, and dry the extraction unit 2; the controller 6 is communicatively connected to the extraction unit 2, the sampling unit 3, the suction unit 4, and the drying unit 5.

[0037] It should be noted that: the smoke collector 9 can adopt the existing technology; specifically, a fixing plate 49 can be provided on the frame 1, and the extraction unit 2 is installed on the fixing plate 49; the controller 6 adopts the Advantech ARK-1550 industrial computer in the existing technology, which can be purchased on the market. In addition, according to actual needs, the controller 6 can also adopt PLC, which is also the existing technology; the gas source 50 can be nitrogen or compressed air.

[0038] The utility model provides a novel automatic extraction device for aerosol components of tobacco products, comprising a frame 1, an extraction unit 2, a sampling unit 3, a suction unit 4, a drying unit 5, and a controller 6. First, a smoke collector 9 is sealed and installed between an upper extraction chamber 7 and a lower extraction chamber 8, and the extraction unit 2, the sampling unit 3, the suction unit 4, and the drying unit 5 are all installed on the frame 1; the controller 6 controls the sampling unit 3 to absorb an extraction liquid and transport the extraction liquid to the upper extraction chamber 7, and the controller 6 controls the suction unit 4 to perform a reciprocating action of suction and reset on the extraction unit 2, that is, a positive pressure and a negative pressure are combined to extract the filter disc, and the extracted solution is collected in the lower extraction chamber 8; then, after the extraction is completed, the controller 6 controls the sampling unit 3 to absorb a cleaning liquid and transport the cleaning liquid to the upper extraction chamber 7, and the controller 6 controls the suction unit 4 to perform a reciprocating action of suction and reset on the cleaning liquid in the upper extraction chamber 7 to clean the extraction unit 2; finally, the controller 6 controls the drying unit 5 to transport gas to the upper extraction chamber 7 and the lower extraction chamber 8 at the same time to dry the extraction unit 2. The novel tobacco product aerosol component automatic extraction device provided by the utility model does not need to open and wipe the smoke collector 9 when in use, thereby reducing the measurement result error caused by the traditional oscillation method, simplifying the operation, avoiding manual cleaning and drying operations, and improving the extraction efficiency of the novel tobacco product aerosol components.

[0039] like Figure 2 , Figure 7 and Fig.10 As shown, the injection unit 3 includes a syringe pump 10 and a switching valve 11, there are multiple extraction units 2, the switching valve 11 includes multiple extraction channels 12, a liquid inlet channel 13, an injection port 14, a waste liquid channel 15, and a cleaning liquid channel 16, the multiple extraction channels 12 are connected to the multiple extraction units 2 in a one-to-one correspondence, the syringe pump 10 is connected to the injection port 14 of the switching valve 11, the liquid inlet channel 13 is used to be connected to the extraction liquid bottle 17, the waste liquid channel 15 is used to be connected to the waste liquid bottle 1818, and the cleaning liquid channel 16 is used to be connected to the cleaning liquid bottle 19. It should be noted that the injection pump 10 and the switching valve 11 are both existing technologies and can be purchased from the market. They can also be injection pumps 10 with switching valves 11. The injection pump 10 model can be SY03B, and the switching valve 11 model can be M09. Multiple extraction units 2 are fed with liquid in sequence. The center interval between adjacent extraction units 2 is 105mm, which meets the extraction requirements of the smoke collector 9 with two specifications of filter discs of 44mm and 92mm. The injection pump 10 first draws the extraction liquid into the injection pump 10 through the liquid inlet channel 13, and then discharges the waste liquid into the waste liquid bottle 1818 through the waste liquid channel 15 or outputs the extraction liquid or cleaning liquid to the upper extraction chamber 7 through the extraction channel 12. In this embodiment, by switching the switching valve 11, the corresponding channels on the switching valve 11 are respectively connected to the extraction unit 2, the injection unit 3, the waste liquid bottle 18, the cleaning liquid bottle 19 or the extraction liquid bottle 17. Specifically, there can be 11 extraction units 2 and 11 extraction channels 12, thereby realizing the convenience of use of the automatic extraction device for aerosol components of new tobacco products.

[0040] like Figure 6 , Figure 8 and Fig. 9As shown, there are also multiple suction units 4, and the multiple suction units 4 are arranged one by one with the extraction units 2. The suction unit 4 includes an airtight sample injector 20 and a linear drive mechanism 21. The outlet of the airtight sample injector 20 is connected to the upper extraction chamber 7. The linear drive mechanism 21 drives the airtight sample injector 20 to reciprocately suck and reset the liquid in the upper extraction chamber 7. The controller 6 is communicatively connected with the linear drive mechanism 21. Specifically, the linear drive mechanism 21 can adopt an electric slide 22, a push rod motor, a cylinder, etc.; the airtight sampler 20 is a prior art and can be a 100ml airtight sampler 20; in this embodiment, the airtight sampler 20 sucks and resets the liquid in the upper extraction chamber 7, so that the liquid reciprocates in the upper extraction chamber 7 and the lower extraction chamber 8, that is, a combination of positive pressure and negative pressure is adopted. When the liquid moves upward, it is sucked by negative pressure, and when the liquid moves downward, it is reset by positive pressure. In this process, the extraction liquid is circulated between the upper extraction chamber 7 and the lower extraction chamber 8, and then the filter in the smoke collector 9 is extracted. The extracted liquid is collected by the lower extraction chamber 8, which improves the convenience of extraction of the automatic extraction device of aerosol components of new tobacco products.

[0041] like Figure 5 , Figure 6 and Fig. 9 As shown, the linear drive mechanism 21 is an electric slide 22, which is slidably mounted on the frame 1. The airtight sampler 20 includes a piston rod 53 and a body that slides along the piston rod 53. The piston rod 53 is fixedly mounted on the frame 1, and the body is fixedly mounted on the electric slide 22. The sliding of the electric slide 22 drives the body to slide along the piston rod 53 to suck and reset the liquid in the extraction chamber. In this embodiment, the sliding of the electric slide 22 drives the body to slide along the piston rod 53, thereby changing the volume of the body, thereby realizing the suction and reset of the liquid in the upper extraction chamber 7, and improving the convenience of using the automatic extraction device of aerosol components of new tobacco products.

[0042] like Figure 1 , Figure 3 and Figure 7As shown, it also includes a calibration unit 23, which is installed on the frame 1. The calibration unit 23 includes a calibration bottle 24 and a calibration connector 25. The switching valve 11 also includes a calibration channel 26. The calibration channel 26 is connected to the injection unit 3. One end of the calibration connector 25 is connected to the calibration channel 26. The other end of the calibration connector 25 is arranged above the calibration bottle 24. The calibration bottle 24 is used to hold the extraction liquid output from the calibration connector 25. In this embodiment, a calibration pillar 51 is provided on the frame 1, and the calibration pillar 51 can be an inverted L-shape. The calibration joint 25 is arranged on the calibration pillar 51, and a cylindrical limiting seat 52 is provided on the frame 1. The calibration bottle 24 is placed in the limiting seat 52 to achieve limiting. The calibration joint 25 can be a straight-through joint, and the centers of the straight-through joint, the limiting seat 52 and the calibration bottle 24 are located on the same axis to ensure that when the extraction liquid is calibrated, the extraction liquid falls into the calibration bottle 24. The calibration bottle 24 is selected according to the calibration bottle 24 of the corresponding capacity according to the different specifications of the filter disc. The sampling volume of the extraction liquid can be corrected by the calibration unit 23 to ensure the accuracy of the sampling volume of the extraction liquid, reduce the deviation of the final result caused by the sampling volume error, and improve the convenience of use of the automatic extraction device of the aerosol component of the new tobacco product.

[0043] In one embodiment of the utility model, a liquid level sensor is provided in the calibration bottle 24, and the liquid level sensor is communicated with the controller 6. The liquid level sensor can detect the liquid level in the calibration bottle 24, so that the feed amount of the extraction liquid can be increased or decreased as needed to ensure that the feed amount meets the requirements, thereby improving the convenience of use of the automatic extraction device for aerosol components of new tobacco products.

[0044] like Figure 5 and Fig. 9As shown, the lower extraction chamber 8 includes an adapter 27, a suction pipe 28, a lower extraction pipe 29, and a collecting vessel 30. The adapter 27 is mounted on the frame 1. The suction pipe 28 is located inside the lower extraction pipe 29. The upper end of the suction pipe 28 is sealed and connected to the top of the adapter 27. The lower end of the smoke collector 9 is sealed and connected to the top of the adapter 27. The upper end of the lower extraction pipe 29 is sealed and installed at the bottom of the adapter 27. A drain valve 45 is provided at the lower end of the lower extraction pipe 29. The collecting vessel 30 is located below the lower extraction pipe 29 and is used to collect liquid discharged from the drain valve 45. Specifically, the collecting vessel 30 may include a wide-mouth bottle and a centrifuge tube. The centrifuge tube is used to collect the extracted solution, and the wide-mouth bottle is used to collect the waste liquid after cleaning. In the present embodiment, in actual application, a notch is provided at the front end edge of the fixing plate 49, and the adapter 27 is placed in the notch. A pair of positioning pins are provided in the notch, and a positioning hole cooperating with the positioning pins is provided on the adapter 27. During actual installation, the positioning hole cooperates with the positioning pins to realize accurate positioning of the adapter 27. The smoke collector 9 is connected and installed between the upper extraction chamber 7 and the lower extraction chamber 8 through the adapter 27, and the liquid is discharged from the bottom of the lower extraction tube 29 through the drain valve 45, thereby improving the ease of use of the automatic extraction device for aerosol components of new tobacco products.

[0045] like Fig.11As shown, the extraction unit 2 also includes a suction valve 31, an upper air pressure valve 32, a lower air pressure valve 33 and a three-way joint 34, the drying unit 5 also includes an upper nitrogen valve 35 and a lower nitrogen valve 36, the gas source 50 is connected to the upper nitrogen valve 35 and the lower nitrogen valve 36, the three-way joint 34 includes a first end, a second end and a third end, the upper extraction chamber 7 includes an upper extraction tube 47 and an extraction cover 48 sealed and installed on the upper extraction tube 47, the extraction cover 48 is provided with an upper air pressure port 37 and a liquid inlet 38, the liquid inlet 38 is connected to the extraction channel 12, the outlet of the airtight sample injector 20 is connected to the suction valve 31, the first end is installed on the upper air pressure valve 32, the second end is installed on the upper air pressure port 37, and the third end is installed on the upper nitrogen valve 35; when the suction valve 31 and the upper air pressure valve 32 are both When closed, the suction valve 31 is connected to the upper air pressure valve 32, and the upper air pressure port 37 is connected to the upper air pressure valve 32; when the suction valve 31 and the drain valve 45 are both opened, the suction valve 31 is connected to the air, and when the upper nitrogen valve 35 is opened, the gas in the gas source 50 is transported to the upper extraction chamber 7; when the upper air pressure valve 32 is opened, the upper air pressure valve 32 is connected to the air; a lower air pressure port 54 is provided on the adapter 27, and the lower air pressure port 54 is connected to the lower air pressure valve 33, and the lower air pressure valve 33 is connected to the lower nitrogen valve 36; when the lower air pressure valve 33 is opened and the lower nitrogen valve 36 is closed, the lower air pressure port 54 is connected to the air to allow air to enter the lower extraction chamber 8; when the lower nitrogen valve 36 is opened and the lower air pressure valve 33 is closed, the gas source 50 transports gas to the lower extraction chamber 8. In this embodiment, a sealing ring is provided between the upper extraction tube 47 and the extraction cover 48. By opening or closing the suction valve 31, the upper air pressure valve 32, the lower air pressure valve 33, the upper nitrogen valve 35 and the lower nitrogen valve 36, liquid or air is introduced into the automatic extraction device for aerosol components of new tobacco products, thereby extracting, cleaning and drying the automatic extraction device for aerosol components of new tobacco products, thereby improving the convenience of using the automatic extraction device for aerosol components of new tobacco products.

[0046] like Figure 5 As shown, a photoelectric switch baffle 39 is provided on the linear drive mechanism 21, and two photoelectric switches 40 used in conjunction with the photoelectric switch baffle 39 are provided on the frame 1, and the photoelectric switches 40 are communicatively connected with the controller 6. In this embodiment, the travel of the linear drive mechanism 21 can be limited by the coordinated use of the photoelectric switch baffle 39 and the two photoelectric switches 40, thereby improving the reliability of the automatic extraction device for aerosol components of novel tobacco products.

[0047] like Figure 2 , Figure 5 and Fig. 9As shown, a toggle clamp 41 is provided above the extraction cover 48, and the toggle clamp 41 is installed on the frame 1. In this embodiment, a stand is provided on the frame 1, and the toggle clamp 41 is installed on the stand. The toggle clamp 41 contacts the extraction tube cover through a rubber head bolt, thereby tightening the connection between the upper extraction chamber 7, the lower extraction chamber 8 and the smoke collector 9, thereby improving the structural stability of the automatic extraction device for aerosol components of novel tobacco products.

[0048] like Figure 2 , Figure 5 and Fig. 9 As shown, the frame 1 includes two upper and lower limit groove pillars 42, the limit groove pillars 42 are rectangular block structures, and the front end of the limit groove pillars 42 is provided with a circular arc-shaped recessed portion matching the upper extraction tube 47 to achieve the limit of the upper extraction tube 47. In this embodiment, a stand is provided on the frame 1, and the limit groove pillars 42 are installed on the stand. The limit groove pillars 42 limit the side of the upper extraction tube 47 in the upper extraction chamber 7, which can effectively prevent the upper extraction tube 47 from lateral dislocation in actual application, and can provide limit support for the installation of the upper extraction tube 47, which is convenient and quick to install, and improves the structural stability of the automatic extraction device for aerosol components of new tobacco products.

[0049] like Figure 5 and Fig. 9 As shown, the lower extraction chamber 8 also includes two support columns 43 and a glass connecting plate 44. The glass connecting plate 44 is mounted on the frame 1. The lower extraction tube 29 is a glass tube. The upper ends of the two support columns 43 are fixedly mounted on the adapter 27 and are respectively located on both sides of the glass tube. The lower end of the glass tube is mounted on the glass connecting plate 44. The glass connecting plate 44 is provided with a liquid hole, and the drain valve 45 is installed in the liquid hole. In this embodiment, the glass tube can be well mounted on the frame 1 through the support columns 43 and the glass connecting plate 44, so that the glass tube is prevented from being broken, and the safety of the automatic extraction device for aerosol components of new tobacco products is improved.

[0050] like Figure 1 As shown, the drying unit 5 further includes an air source 50 processing member 46, one end of which is connected to the air source 50, and the other end of which is connected to both the upper nitrogen valve 35 and the lower nitrogen valve 36. In this embodiment, the air source 50 processing member 46 includes an oil separator, a water droplet separator and an air filter, which can filter and reduce the pressure of the gas, so that the gas entering the automatic extraction device for aerosol components of novel tobacco products can dry the extraction unit 2 better.

[0051] In an embodiment of the present invention, the number of extraction units 2 may be 11, the number of suction units 41 may be correspondingly four, and the number of extraction channels 12 on the switching valve 11 may also be 11.

[0052] In one embodiment of the utility model, any extraction unit 2 on the extraction unit 2 can be used as a blank filter test unit. The blank filter test unit is convenient for extracting the moisture of the blank filter at the same time as the filter extraction experiment, thereby eliminating the influence of the moisture contained in the blank filter on the test results. There is no need to start a new set of experiments to test the moisture of the blank filter, and the operation efficiency is higher.

[0053] In one embodiment of the utility model, the method for extracting aerosol components of novel tobacco products comprises the following steps:

[0054] S1. Preparation stage: install the smoke collector 9 on the extraction unit 2, the bottom of the extraction unit 2 can drain liquid, and place a centrifuge tube below the extraction unit 2; specifically: install the smoke inlet end of the smoke collector 9 vertically downward on the adapter seat 27, put the extraction tube 47 on the upper end of the smoke collector 9, install the extraction cover 48 on the upper end of the upper extraction tube, adjust the clamping clamp to compact the entire extraction unit 2, place the limit seat 52 below the drain valve 45, and place the lower extraction tube 29 on the limit seat 52.

[0055] S2. Automatic liquid inlet preparation: the control unit controls the injection unit 3 to absorb the extraction liquid, and then transports it to the extraction unit 2 through the pipeline. The transportation is stopped when the pipeline is full of the extraction liquid. Specifically: the controller 6 selects the channel 1-11, the switching valve 11 switches to the liquid inlet channel 13 to draw 5 ml of extraction liquid, and then discharges the extraction liquid through the selected 1-11 channel to ensure that the selected pipeline is full of extraction liquid and eliminate the error caused by the pipeline.

[0056] Before the automatic liquid injection in step S3, the device can be calibrated and calibrated. The specific calibration process is as follows: the switching valve 11 switches to the liquid inlet channel 13 to extract the extract required by the filter disc (20 ml of extract required for a 44 mm filter disc, 50 ml of extract required for a 92 mm filter disc), the switching valve 11 switches to the calibration channel 26, the injection pump 10 is reset, the extract is discharged into the calibration bottle 24, the capacity of the calibration bottle 24 is read and input into the controller 6, the calibration coefficient is calculated, and sent to the controller 6, that is, when the read capacity is less than the standard, the injection volume is increased, and when it is more than the standard, the injection volume is reduced to ensure that the injection volume meets the requirements. After the calibration is completed, the injection unit 3 automatically injects liquid according to the issued calibration coefficient. Alternatively, the above-mentioned injection volume can also be determined by setting a liquid level sensor in the calibration bottle 24 for full-automatic calibration.

[0057] S3, automatic liquid inlet: the controller 6 controls the sample injection unit 3 to absorb the extraction liquid, and then sequentially delivers the absorbed extraction liquid to the extraction unit 2; specifically: when the upper air pressure valve 32, the suction valve 31 and the lower air pressure valve 33 are closed, the suction unit 4 and the upper extraction chamber 7, the lower extraction chamber 8 and the smoke collector 9 form a closed space, when the upper air pressure valve 32 is opened, the upper extraction chamber 7 is connected to the air, when the suction valve 31 is opened, the suction valve 31 is connected to the air, and when the lower air pressure valve 33 is opened, the lower extraction chamber 8 is connected to the air. The injection pump 10 extracts the required volume of extraction liquid, the lower air pressure valve 33 opens, and the injection pump 10 resets to discharge the extraction liquid into the extraction tube through the liquid inlet 38. After the reset is completed, the upper air pressure valve 32 opens and closes after a delay of 5 seconds to ensure that the extraction liquid flows into the lower extraction chamber 8. The upper air pressure valve 32 and the lower air pressure valve 33 are closed. In this way, the extraction unit 2 is filled with liquid, and the suction unit 4 starts to suck and reset the liquid in the extraction chamber to determine whether the other extraction units 2 have completed the filling. If not, continue to fill the other extraction units 2, and so on. The filling and suction reset actions of each extraction unit 2 are performed alternately. If completed, the filling process of the entire instrument is completed.

[0058] S4, automatic extraction: the extraction frequency and extraction time are set by the controller 6, and the controller 6 controls the extraction unit 2 to work. The extraction unit 2 extracts the smoke collector 9 according to the extraction frequency and extraction time set by the controller 6. The extraction ends when the extraction time is reached, and the bottom of the extraction unit 2 is drained to discharge the extracted liquid into the lower extraction tube 29; specifically: the suction unit 4 performs suction and reset actions according to the extraction frequency set by the controller 6, and repeats this process until the extraction time is reached and the extraction ends; the drain valve 45 is opened, the suction unit 4 is reset, and the suction unit 4 is pressed down to press the extracted liquid into the lower extraction chamber 8 through the suction unit 4 for subsequent chromatographic analysis, the suction valve 31 is opened, the suction unit 4 sucks and then resets to enable subsequent testing, and then the upper air pressure valve 32 is opened, and closed after a delay of 5s, and finally the drain valve 45 and the lower air pressure valve 33 are closed to ensure that there is no accumulated liquid in the pipeline.

[0059] S5. Automatic cleaning preparation: After the extraction is completed, place the centrifuge tube under the drain valve 45, discharge the extracted solution into the centrifuge tube, and take away the centrifuge tube; remove the smoke collector 9 and the filter in the smoke collector 9, and then install the smoke collector 9 on the extraction unit 2.

[0060] Furthermore, each extraction unit 2 automatically injects samples and automatically extracts, and after the extraction is completed, a solution to be detected is obtained in the centrifuge tube, and the detection solution in the centrifuge tube is poured into a chromatographic injection bottle for subsequent chromatographic analysis.

[0061] S6, cleaning liquid injection: the controller 6 controls the injection unit 3 to absorb the cleaning liquid, and then delivers the absorbed cleaning liquid to the extraction unit 2, and sequentially delivers the cleaning liquid to the multiple upper extraction chambers 7.

[0062] S7, start cleaning: after all the upper extraction chambers 7 have been transported with the cleaning liquid, the cleaning frequency and cleaning time are set by the controller 6, the controller 6 controls the extraction unit 2 to work, the extraction unit 2 is cleaned according to the cleaning frequency and cleaning time set by the controller 6, the suction unit 4 simultaneously sucks and resets the cleaning liquid in the multiple upper extraction chambers 7 to clean the multiple extraction units 2, and the automatic cleaning is completed after the cleaning time is reached, the bottom of the extraction unit 2 is drained, and the waste liquid after cleaning is discharged into the wide-mouth bottle.

[0063] S8, drying: the drying time is set by the controller 6, and the controller 6 controls the gas source 50 to supply gas to the extraction unit 2, and the extraction unit 2 is dried. When the drying time is reached, the drying is stopped. This step is nitrogen drying or compressed air drying, specifically: the drain valve 45 is opened, the suction valve 31 is opened, the upper air pressure valve 32 pipeline is blocked, the upper extraction chamber 7 is dried with nitrogen, the upper nitrogen valve 35 is opened, the nitrogen blowing time is reached, and the upper nitrogen valve 35 is closed; then the lower extraction chamber 8 is dried with nitrogen, the lower nitrogen valve 36 is opened, the nitrogen blowing time is reached, the upper nitrogen valve 35 is opened, the nitrogen blowing time is reached, the upper nitrogen valve 35 and the lower nitrogen valve 36 are closed at the same time, the suction valve 31 is closed, the upper air pressure valve 32 pipeline is restored, and the drain valve 45 is closed.

[0064] The extraction time is 0-60 minutes, the extraction frequency is 4-10 times / minute, the cleaning time is 0-60 minutes, the cleaning frequency is 4-10 times / minute, the cleaning times are 1-5 times, and the nitrogen blowing time is 1-300s. The specific parameters can be set according to actual needs. Through the above process, the smoke components of new tobacco products can be extracted quickly and accurately, and the repeatability and reproducibility are good.

[0065] The utility model provides a novel automatic extraction device for aerosol components of tobacco products, comprising a frame 1, an extraction unit 2, a sampling unit 3, a suction unit 4, a drying unit 5, and a controller 6. First, a smoke collector 9 is sealed and installed between an upper extraction chamber 7 and a lower extraction chamber 8, and the extraction unit 2, the sampling unit 3, the suction unit 4, and the drying unit 5 are all installed on the frame 1; the controller 6 controls the sampling unit 3 to absorb an extraction liquid and transport the extraction liquid to the upper extraction chamber 7, and the controller 6 controls the suction unit 4 to perform a reciprocating action of suction and reset on the extraction unit 2, that is, a positive pressure and a negative pressure are combined to extract the filter disc, and the extracted solution is collected in the lower extraction chamber 8; then, after the extraction is completed, the controller 6 controls the sampling unit 3 to absorb a cleaning liquid and transport the cleaning liquid to the upper extraction chamber 7, and the controller 6 controls the suction unit 4 to perform a reciprocating action of suction and reset on the cleaning liquid in the upper extraction chamber 7 to clean the extraction unit 2; finally, the controller 6 controls the drying unit 5 to transport gas to the upper extraction chamber 7 and the lower extraction chamber 8 at the same time to dry the extraction unit 2. The novel tobacco product aerosol component automatic extraction device provided by the utility model does not need to open and wipe the smoke collector 9 when in use, thereby reducing the measurement result error caused by the traditional oscillation method, simplifying the operation, avoiding manual cleaning and drying operations, and improving the extraction efficiency of the novel tobacco product aerosol components.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A novel automatic extraction device for aerosol components of tobacco products, characterized in that: It includes a frame, an extraction unit, a sampling unit, a suction unit, a drying unit, and a controller, wherein: The extraction unit, the sample injection unit, the suction unit, and the drying unit are all installed on the frame; The extraction unit comprises an upper extraction chamber, a lower extraction chamber, and a smoke collector, wherein the smoke collector is used to install a filter, and the smoke collector is sealed and installed between the upper extraction chamber and the lower extraction chamber; The sample injection unit is in communication with the upper extraction chamber to transport an extraction liquid or a cleaning liquid to the upper extraction chamber; The suction unit is connected to the upper extraction chamber and performs suction and reset actions on the liquid in the upper extraction chamber. The lower extraction chamber is used to hold the extracted solution. The drying unit is used to be connected to a gas source, and the gas source is connected to both the upper extraction chamber and the lower extraction chamber to transport gas to the upper extraction chamber and the lower extraction chamber and dry the extraction unit; The controller is in communication connection with the extraction unit, the sampling unit, the suction unit, and the drying unit.

2. The automatic extraction device for aerosol components of novel tobacco products according to claim 1 is characterized in that: The injection unit includes a syringe pump and a switching valve. There are multiple extraction units. The switching valve includes multiple extraction channels, liquid inlet channels, injection ports, waste liquid channels, and cleaning liquid channels. The multiple extraction channels are connected to the multiple extraction units one by one. The syringe pump is connected to the injection port of the switching valve. The liquid inlet channel is used to be connected to the extraction liquid bottle, the waste liquid channel is used to be connected to the waste liquid bottle, and the cleaning liquid channel is used to be connected to the cleaning liquid bottle.

3. The automatic extraction device for aerosol components of novel tobacco products according to claim 2, characterized in that: There are also multiple suction units, and the multiple suction units are arranged in a one-to-one correspondence with the extraction units. The suction unit includes an airtight sampler and a linear drive mechanism. The outlet of the airtight sampler is connected to the upper extraction chamber. The linear drive mechanism drives the airtight sampler to reciprocately suck and reset the liquid in the upper extraction chamber. The controller is communicatively connected with the linear drive mechanism.

4. The automatic extraction device for aerosol components of novel tobacco products according to claim 3 is characterized in that: The linear drive mechanism is an electric slide, which is slidably mounted on the frame. The airtight injector includes a piston rod and a body that slides along the piston rod. The piston rod is fixedly mounted on the frame, and the body is fixedly mounted on the electric slide. The sliding of the electric slide drives the body to slide along the piston rod to suck and reset the liquid in the extraction chamber.

5. The automatic extraction device for aerosol components of novel tobacco products according to claim 2, characterized in that: It also includes a calibration unit, which is installed on the frame. The calibration unit includes a calibration bottle and a calibration connector. The switching valve also includes a calibration channel, which is connected to the injection unit. One end of the calibration connector is connected to the calibration channel, and the other end of the calibration connector is arranged above the calibration bottle. The calibration bottle is used to hold the extraction liquid output from the calibration connector.

6. The automatic extraction device for aerosol components of novel tobacco products according to claim 5, characterized in that: A liquid level sensor is arranged in the calibration bottle, and the liquid level sensor is communicatively connected with the controller.

7. The automatic extraction device for aerosol components of novel tobacco products according to claim 3, characterized in that: The lower extraction chamber includes an adapter seat, a suction pipe, a lower extraction tube, and a collecting vessel. The adapter seat is installed on the frame, the suction pipe is located inside the lower extraction tube, the upper end of the suction pipe is sealed and connected and installed on the top of the adapter seat, the lower end of the smoke collector is sealed and connected and installed on the top of the adapter seat, the upper end of the lower extraction tube is sealed and installed on the bottom of the adapter seat, the lower end of the lower extraction tube is provided with a drain valve, and the collecting vessel is located below the lower extraction tube and is used to collect liquid discharged from the drain valve.

8. The automatic extraction device for aerosol components of novel tobacco products according to claim 7, characterized in that: The extraction unit further comprises a suction valve, an upper air pressure valve, a lower air pressure valve and a three-way joint, the drying unit further comprises an upper nitrogen valve and a lower nitrogen valve, the gas source is connected to both the upper nitrogen valve and the lower nitrogen valve, the three-way joint comprises a first end, a second end and a third end, the upper extraction chamber comprises an upper extraction tube and an extraction cover sealedly mounted on the upper extraction tube, the extraction cover is provided with an upper air pressure port and a liquid inlet, the liquid inlet is connected to the extraction channel, the outlet of the airtight injector is connected to the suction valve, the first end is mounted on the upper air pressure valve, the second end is mounted on the upper air pressure port, and the third end is mounted on the upper nitrogen valve; When the suction valve and the upper air pressure valve are both closed, the suction valve is connected to the upper air pressure valve, and the upper air pressure port is connected to the upper air pressure valve; When the suction valve and the drain valve are both opened, the suction valve is connected to the air, and when the upper nitrogen valve is opened, the gas in the gas source is transported to the upper extraction chamber; When the upper air pressure valve is opened, the upper air pressure valve is connected to the air; The adapter is provided with a lower air pressure port, the lower air pressure port is connected to the lower air pressure valve, and the lower air pressure valve is connected to the lower nitrogen valve; When the lower air pressure valve is opened and the lower nitrogen valve is closed, the lower air pressure port is connected to the air to allow air to enter the lower extraction chamber; When the lower nitrogen valve is opened and the lower air pressure valve is closed, the gas source delivers gas into the lower extraction chamber.

9. The automatic extraction device for aerosol components of novel tobacco products according to claim 3, characterized in that: The linear drive mechanism is provided with a photoelectric switch baffle, the frame is provided with two photoelectric switches used in conjunction with the photoelectric switch baffle, and the photoelectric switches are communicatively connected with the controller.

10. The automatic extraction device for aerosol components of novel tobacco products according to claim 8, characterized in that: A toggle clamp is arranged above the extraction cover and is mounted on the frame.

11. The automatic extraction device for aerosol components of novel tobacco products according to claim 8, characterized in that: The frame includes two upper and lower limiting groove pillars, each of which is a rectangular block structure, and a circular arc-shaped recessed portion matching the upper extraction tube is arranged at the front end of the limiting groove pillar to limit the upper extraction tube.

12. The automatic extraction device for aerosol components of novel tobacco products according to claim 7, characterized in that: The lower extraction chamber also includes two support columns and a glass connecting plate, the glass connecting plate is installed on the frame, the lower extraction tube is a glass tube, the upper ends of the two support columns are fixedly installed on the adapter and are respectively located on both sides of the glass tube, the lower end of the glass tube is installed on the glass connecting plate, a liquid hole is provided on the glass connecting plate, and the drain valve is installed in the liquid hole.

13. The automatic extraction device for aerosol components of novel tobacco products according to claim 8, characterized in that: The drying unit further comprises an air source processing component, one end of which is connected to the air source, and the other end of which is connected to both the upper nitrogen valve and the lower nitrogen valve.

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