Aerosol collection equipment

Abstract

The utility model provides an aerosol collection device, including: a frame, provided with a suction nozzle; a trap, an absorption bottle and a condensation sleeve sleeved on the outside of the absorption bottle, one end of the absorption bottle is connected to the suction nozzle, the absorption bottle is used to contain absorption liquid to capture aerosol, and the condensation sleeve is used to contain condensation liquid to reduce the temperature of the absorption bottle; a suction device is connected to the other end of the absorption bottle relative to the suction nozzle; a cooling device is provided with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are respectively connected to the condensation sleeve, the liquid inlet pipe is used to introduce the condensation liquid in the condensation sleeve into the cooling device for cooling, and the liquid outlet pipe is used to guide the cooled condensation liquid to the condensation sleeve. By arranging the condensation sleeve outside the absorption bottle and connecting the condensation sleeve with the cooling device, the cooling device circulates and cools the condensation liquid in the condensation sleeve, thereby ensuring the temperature consistency of the condensation sleeve and the cooling device, thereby reducing the temperature error and improving the accuracy of the experimental results.

Description

Technical Field

[0001] The utility model belongs to the technical field of aerosol capture, and in particular relates to an aerosol collection device. Background Art

[0002] Electronic cigarettes are a new type of electronic product that uses a heating system to heat and atomize electronic cigarette liquid to produce an aerosol with a specific smell. With the rapid development of electronic cigarettes, the safety of the components in the aerosol has received attention, and the requirements for the detection technology of the components in the aerosol have also increased.

[0003] At present, the main methods for collecting aerosols are Cambridge filters or solvent absorption through traps. Cambridge filters can capture particulate matter in flue gas, but there are still a small amount of gas phase components that cannot be completely captured. Cambridge filters require subsequent processing steps such as oscillation extraction. Long-term processing may cause deviations in component results, which is not conducive to aerosol research. Conventional solvent absorption can only capture certain specific components.

[0004] The low-temperature capture method (temperature is usually less than -70°C) can capture different volatile components in aerosols. In actual operation, different absorption solutions are usually required to group and capture different aerosols for detection. In the prior art, due to the large number of aerosol components, multiple groups of absorption solutions are often required for capture experiments, and the preliminary preparation time for each group of experiments is relatively long, which leads to large differences in the low-temperature conditions of different experimental groups, ultimately affecting the accuracy of the experimental results. Utility Model Content

[0005] The embodiment of the utility model aims to provide an aerosol collection device to solve the technical problem in the prior art that it is difficult to simultaneously maintain multiple capture test groups at the same low temperature condition, thereby resulting in insufficient accuracy of the detection results.

[0006] In order to solve the above technical problems, the utility model provides an aerosol collection device, comprising: a frame, provided with a suction nozzle, the suction nozzle is used to collect aerosols; a capture trap, comprising an absorption bottle and a condensation sleeve sleeved on the outside of the absorption bottle, one end of the absorption bottle is connected to the suction nozzle, the absorption bottle is used to contain absorption liquid to capture the aerosol, and the condensation sleeve is used to contain condensed liquid to reduce the temperature of the absorption bottle; a suction device, connected to the other end of the absorption bottle relative to the suction nozzle, used to generate negative pressure to provide power for the aerosol to flow; a cooling device, provided with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are respectively connected to the condensation sleeve, the liquid inlet pipe is used to introduce the condensed liquid in the condensation sleeve into the cooling device for cooling, and the liquid outlet pipe is used to guide the cooled condensed liquid to the condensation sleeve.

[0007] Optionally, the capture trap includes at least two absorption bottles and two condensation sleeves, each of the condensation sleeves is sleeved on the outside of an absorption bottle, and each of the absorption bottles has an air inlet end and an air outlet end, wherein the air inlet end of one of the absorption bottles is connected to the suction nozzle, the air outlet end of the absorption bottle is connected to the air inlet end of another absorption bottle, and the air outlet end of the other absorption bottle is connected to the suction device.

[0008] Optionally, the aerosol collection device includes a plurality of the collection traps, the frame is provided with a plurality of mounting slots for accommodating the plurality of the collection traps, the frame is provided with a plurality of the suction nozzles, and each of the suction nozzles is connected to a corresponding one of the absorption bottles.

[0009] Optionally, the condensing sleeve has a liquid inlet end and a liquid outlet end, wherein the liquid inlet end of one of the condensing sleeves is connected to the liquid outlet pipe, the liquid outlet end of the condensing sleeve is connected to the liquid inlet end of another condensing sleeve, and the liquid outlet end of the other condensing sleeve is connected to the liquid inlet pipe.

[0010] Optionally, the condensing sleeve has a liquid inlet end and a liquid outlet end, the liquid inlet end of each condensing sleeve is respectively connected to the liquid outlet pipe, and the liquid outlet end of each condensing sleeve is respectively connected to the liquid inlet pipe.

[0011] Optionally, a temperature detector is provided in the condensing sleeve to indicate the temperature of the condensing sleeve.

[0012] Optionally, the cooling device further comprises a connector, which is connected to a liquid outlet pipe between the plurality of condensing sleeves and the cooling device and is used to divert the condensate to the plurality of condensing sleeves.

[0013] Optionally, the connecting piece includes a liquid inlet and a plurality of liquid outlets, the liquid inlet is connected to the liquid outlet pipe, and each of the liquid outlets is connected to a liquid inlet end of the condensing sleeve.

[0014] Optionally, the connecting member further comprises a flow regulating member, and the flow regulating member is movably disposed in the liquid outlet along a radial direction of the liquid outlet.

[0015] Optionally, the flow regulating member is an adjusting screw, and the adjusting screw is threadably connected to the liquid outlet.

[0016] In an embodiment of the utility model, an aerosol collection device is disclosed. A condensing sleeve is arranged outside the capture trap and the condensing sleeve is connected to a cooling device, so that condensate with a relatively high temperature in the condensing sleeve is discharged through a liquid outlet pipe of the cooling device, and then condensate with a relatively low temperature is introduced through a liquid inlet pipe, thereby continuously maintaining the temperature consistency between the condensing sleeve and the cooling device. Therefore, regardless of the length of the capture experiment, the same low temperature conditions can be maintained during the capture, thereby reducing the systematic error caused by the temperature difference and improving the accuracy of the experimental results. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] One or several embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0018] Figure 1 A schematic diagram of the structure of an aerosol collection device provided in one embodiment of the present application;

[0019] Figure 2 A schematic cross-sectional structure diagram of an aerosol collection device provided in one embodiment of the present application;

[0020] Figure 3 A partial structural schematic diagram of an aerosol collection device provided in one embodiment of the present application;

[0021] Figure 4 A schematic cross-sectional view of a portion of the structure of an aerosol collection device provided in one embodiment of the present application;

[0022] Figure 5 A schematic cross-sectional structure diagram of a connector provided in one embodiment of the present application;

[0023] Figure 6 Another schematic cross-sectional view of a connector according to an embodiment of the present application.

[0024] The reference numerals are as follows:

[0025] 10. Frame; 11. Suction nozzle; 12. Mounting slot;

[0026] 20, trap; 21, absorption bottle; 211, bottle body; 212, air guide pipe; 212A, air inlet end; 212B, air outlet end; 212C, multi-hole air nozzle; 22, condensation sleeve; 221, liquid inlet end; 222, liquid outlet end;

[0027] 30. Suction device;

[0028] 40. Cooling device; 41. Liquid inlet pipe; 42. Liquid outlet pipe; 43. Connecting piece; 431. Liquid inlet; 432. Liquid outlet; 433. Transition channel; 434. Flow regulating piece. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the utility model, the utility model is described in more detail in the following in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on another element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" used in this specification indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0031] The prior art can refer to the Chinese utility model patent with announcement number CN219578303U. The aerosol collection device includes an electronic cigarette clamp, an electronic cigarette mouthpiece, a double trap and a suction mechanism arranged on a frame; the electronic cigarette mouthpiece can be plugged and / or sleeved on the mouthpiece of the electronic cigarette; the electronic cigarette mouthpiece, the double trap and the suction mechanism are connected in sequence, so that the electronic cigarette, the electronic cigarette mouthpiece, the double trap and the suction mechanism form a suction channel in sequence to draw the atomized substance of the electronic cigarette into the double trap.

[0032] On this basis, in order to meet the requirements of low-temperature aerosol capture, a condensation sleeve can be further provided on the double trap. Specifically, the double trap is a series connection of two absorption bottles in the gas circuit, and a condensation sleeve is separately provided outside each absorption bottle to achieve low-temperature conditions for absorbing aerosols. Therefore, the preliminary operation steps of the aerosol collection experiment are: first, all the double traps are connected in the gas circuit, that is, the air inlet end of one of the absorption bottles is connected to the nozzle through a hose, and then the air outlet end of the absorption bottle is connected to the air inlet end of the other absorption bottle, and then the air outlet end of the other absorption bottle is connected to the suction device, and finally a condensation sleeve is provided for each absorption bottle. Since the existing aerosol collection equipment has a maximum of 10 workstations, a maximum of 10 sets of double traps can be provided on the rack at the same time, that is, 20 absorption bottles need to be provided with condensation sleeves. During this process, the condensation sleeve that was installed at the beginning and the condensation sleeve that was installed at the end may have different temperatures due to the different heat dissipation time in between, resulting in different aerosol absorption conditions and absorption rates. The two groups of experiments cannot achieve the desired comparison effect, which ultimately affects the accuracy of the experimental results.

[0033] See also Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of an aerosol collection device provided in one embodiment of the present application. Figure 2 A schematic diagram of the cross-sectional structure of an aerosol collection device provided for an embodiment of the present application. The aerosol collection device includes a frame 10, a trap 20, a suction device 30 and a cooling device 40. A nozzle 11 is provided on the frame 10, and the nozzle 11 is connected to an electronic cigarette (not shown in the figure). The release generated when the electronic cigarette is working is introduced into the trap 20 through the nozzle 11. The trap 20 includes an absorption bottle 21 and a condensation sleeve 22. The absorption bottle 21 stores an absorption solution for capturing aerosols. The aerosol is introduced into the absorption bottle 21, and the aerosol that is not completely absorbed will overflow from the absorption liquid and flow to the next trap 20 until it is completely absorbed. The suction device 30 is used to generate negative pressure, so that the gas in the nozzle 11, the absorption bottle 21 and the hose between the nozzle 11 and the absorption bottle 21 flows into the suction device 30 to provide flow power. The condensation sleeve 22 outside the absorption bottle 21 contains a condensation solution, which is used to absorb heat from the absorption bottle 21, so that the absorption bottle 21 is in a low temperature condition to improve the aerosol capture efficiency. The cooling device 40 is provided with a liquid inlet pipe 41 and a liquid outlet pipe 42, which are respectively connected to the condensation sleeve 22. Among them, the liquid inlet pipe 41 is used to introduce the condensate in the condensation sleeve 22 into the cooling device 40 for cooling, and the liquid outlet pipe 42 is used to guide the cooled condensate to the condensation sleeve 22. In this way, the temperature of the condensation sleeve 22 in each group of capture traps 20 can be consistent with the condensate in the cooling device 40.

[0034] Thus, the condensate with a relatively low temperature is discharged through the liquid outlet pipe 42 of the cooling device 40, and then the condensate with a relatively high temperature is introduced into the liquid inlet pipe 41, so as to continuously maintain the temperature consistency between the condensation sleeve 22 and the cooling device 40, so that each group of capture experiments can maintain the same low temperature conditions during capture regardless of the assembly time of the previous experimental equipment, thereby reducing the systematic error caused by the temperature difference and improving the accuracy of the experimental results.

[0035] A clamp (not shown) is provided at one end of the frame 10, and the clamp is used to fix the position of the electronic cigarette. The electronic cigarette is plugged into the mouthpiece 11, and the mouthpiece 11 is an airtight environment, so that when the electronic cigarette is inserted into the mouthpiece 11, the smoke liquid of the electronic cigarette is atomized and directly sucked from the mouthpiece 11 to the capture trap 20, and will not escape to the surrounding environment and cause losses. In some embodiments, an electric controller is also provided on the frame 10, which can control the working switch of the electronic cigarette, so that the electronic cigarette can work in the manner set by the controller, thereby simulating the behavior of human users smoking electronic cigarettes. Specifically, the electric controller is not the focus of the invention concept of this application, so it will not be introduced in detail.

[0036] A plurality of mounting grooves 12 are provided in the frame 10, and the mounting grooves 12 are used to install the traps 20. Specifically, the mounting grooves 12 can accommodate one or more groups of traps 20, and a group of traps 20 includes a plurality of absorption bottles 21 and a plurality of condensation sleeves 22. When a group of traps 20 includes only one absorption bottle 21 and one condensation sleeve 22, the inner diameter of the mounting groove 12 is equal to or slightly larger than the outer diameter of the condensation sleeve 22, so as to achieve the positioning of the traps 20 by the mounting groove 12. When a group of traps 20 includes multiple absorption bottles 21 and multiple condensation sleeves 22, the multiple absorption bottles 21 are arranged longitudinally along the direction in which the gas path is set.

[0037] By arranging multiple sets of traps 20 in the installation slot 12, each set of traps 20 can be used to perform different aerosol absorption experiments, thereby simultaneously capturing multiple aerosol components to improve experimental efficiency. Control experiments can also be set up for mutual verification to improve the accuracy of experimental results.

[0038] The absorption bottle 21 includes a bottle body 211 and an air guide pipe 212 inserted into the bottle body. Specifically, the bottle body 211 is used to accommodate the absorption solution. The aerosol is introduced into the bottle body through the air guide pipe 212, and mixed with the absorption solution to make the aerosol absorbed by the absorption solution. The remaining aerosol after absorption is discharged from the bottle body through the air guide pipe 212. The air guide pipe 212 includes an air inlet pipe 212A and an air outlet pipe 212B. The end of the air inlet pipe 212A is provided with a spherical porous air nozzle 212C. The inner diameter of the porous air nozzle 212C is larger than the inner diameter of the air inlet pipe 212A, and a plurality of absorption holes (not marked in the figure) are provided. When in use, the end of the air inlet pipe 212A is inserted into the bottle body 211 so that the porous air nozzle 212C is immersed below the liquid surface of the absorption solution, thereby increasing the reaction area between the aerosol and the absorption solution and improving the aerosol capture rate. The outlet end of the gas outlet pipe 212B is located above the liquid surface of the absorption solution. The gas not absorbed by the absorption solution escapes from the absorption solution and is guided to the outside of the absorption bottle 21 through the gas outlet pipe 212B.

[0039] By connecting the absorption bottles 21 in series, even if the aerosol components cannot be completely absorbed in the first absorption bottle 21, they can be absorbed in other subsequent absorption bottles 21, thereby achieving multi-stage absorption and capture, and effectively improving the aerosol capture efficiency.

[0040] The condensing sleeve 22 is sleeved on the outside of the absorption bottle 21. Condensate is placed in the condensing sleeve 22. The condensate exchanges heat with the absorption bottle 21, so that the absorption solution in the absorption bottle 21 is kept at a low temperature, thereby improving the efficiency of the absorption solution in absorbing aerosols. Specifically in the embodiment, the optimal temperature condition for low-temperature absorption is about -70°C, so the condensate can use acetone / dry ice mixture or acetone / liquid nitrogen mixture and other condensates, which are not limited. If the temperature of the absorption solution is higher than that of the condensate, the absorption solution transfers heat to the condensate through the bottle wall of the absorption bottle 21, thereby lowering the temperature of the absorption solution itself and achieving low-temperature conditions.

[0041] The condensing sleeve 22 also has a liquid inlet end 221 and a liquid outlet end 222, which are respectively arranged on opposite sides of the axial direction of the condensing sleeve 22, and are used to circulate the condensate in the condensing sleeve 22. Specifically, the liquid inlet end 221 can be directly or indirectly connected to the external cooling device 40 through a liquid pipeline, and the cooling device 40 continuously inputs relatively low-temperature condensate into the condensing sleeve 22 through the liquid inlet end 221, and the condensate exchanges heat with the absorption solution and heats up. The liquid outlet end 222 is also directly or indirectly connected to the external cooling device 40 through a liquid pipeline, and the cooling device 40 continuously draws relatively high-temperature condensate from the condensing sleeve 22 through the liquid outlet end 222, and cools the condensate again in the cooling device 40, so that the cooled condensate is again input into the condensing sleeve 22 through the liquid inlet end 221. The liquid inlet end 221 is preferably arranged at the bottom of the condensing sleeve 22, and the liquid outlet end 222 is preferably arranged at the top of the condensing sleeve 22 to increase the flow area of ​​the condensing liquid in the condensing sleeve 22, so that the temperature distribution of the condensing sleeve 22 is more uniform, and the condensing liquid first contacts the part to be cooled, thereby improving the condensation efficiency of the absorption solution.

[0042] In some embodiments, in the same group of traps 20, according to the flow order of aerosol, they can be divided into the first condensation sleeve, the second condensation sleeve... the Nth condensation sleeve. For example, for a trap 20 consisting of only two absorption bottles 21 and two condensation sleeves 22, the liquid inlet end 221 of the first condensation sleeve 22 is indirectly connected to the liquid outlet pipe 42 of the cooling device 40, the liquid outlet end 222 of the first condensation sleeve 22 is connected to the liquid inlet end 221 of the second condensation sleeve 22, and the liquid outlet end 222 of the second condensation sleeve 22 is connected to the liquid inlet pipe 41 of the cooling device 40, and the connection can be connected by an antifreeze hose (such as a silicone tube).

[0043] Therefore, for the condensing sleeves 22 in the same group of capture traps 20, the two condensing sleeves 22 are arranged in series, and only one liquid outlet end 222 and one liquid inlet end 221 of the cooling device 40 are needed to complete the cooling cycle of the two condensing sleeves 22, thereby improving the utilization rate of the condensate.

[0044] In other embodiments, in the same group of traps 20, they are still divided into the first condensation sleeve, the second condensation sleeve, ... the Nth condensation sleeve according to the flow order of the aerosol. For a trap 20 consisting of only two absorption bottles 21 and two condensation sleeves 22, the liquid inlet end 221 of the first condensation sleeve 22 is connected to the liquid outlet pipe 42 of the cooling device 40, and the liquid inlet end 221 of the second condensation sleeve 22 is also connected to the liquid outlet pipe 42 of the cooling device 40. In contrast, the liquid outlet end 222 of the first condensation sleeve 22 is connected to the liquid inlet pipe 41 of the cooling device 40, and the liquid outlet end 222 of the second condensation sleeve 22 is also connected to the liquid inlet pipe 41 of the cooling device 40.

[0045] Therefore, for the condensation sleeves 22 in the same group of traps 20, although the absorption bottles 21 are still connected to each other as the same group, the condensation sleeves 22 of each other are independently set. Although the two condensation sleeves 22 need to occupy two liquid outlet pipes 42 and two liquid inlet pipes 41 of the cooling device 40, each condensation sleeve 22 can independently complete the cooling cycle with the cooling device 40. Especially for the second condensation sleeve 22, if a series setting is adopted, the condensate used is the condensate after the first condensation sleeve 22 has been cooled once, and the condensation effect is relatively poor, and it is impossible to ensure that the low temperature conditions in the first condensation sleeve 22 are consistent with those in the second condensation sleeve 22. The use of independently set condensation sleeves 22 can avoid this defect.

[0046] The cooling device 40 is a device that can suck the condensate to perform a cooling cycle. Specifically, the condensing device can be driven by electricity, and the refrigerant can be cooled by water cooling or air cooling. For example, the cooling device 40 includes an evaporator, a condenser, a liquid storage tank, a compressor, a separator, a filter, etc. The cooling device 40 with appropriate parameters can be selected by those skilled in the art according to the actual situation, and there is no limitation on this.

[0047] See also Figure 3 , Figure 3 A partial structural diagram of an aerosol collection device provided in one embodiment of the present application. In some embodiments, the cooling device 40 further includes a connector 43, which is used to connect to the liquid inlet pipe 41 between the multiple sets of traps 20 and the cooling device 40, so that the condensate in the cooling device 40 can be diverted to the condensation sleeves 22 of the multiple sets of traps 20 through the connector 43. For example, the cooling device 40 is usually only provided with one liquid inlet pipe 41 and one liquid outlet pipe 42, while the corresponding condensation sleeves 22 can be as many as 20 at most, so the connector 43 is required to connect the liquid outlet pipe 42 and the condensation sleeve 22.

[0048] Therefore, after adopting the connecting piece 43, each condensing sleeve 22 can be individually connected to the cooling device 40, which can not only take advantage of the independently set condensing sleeves 22 and maintain the same cooling cycle of each condensing sleeve 22 (that is, maintain the consistency of the low temperature conditions of each group of absorption bottles 21), but also avoid the problem that the independently set condensing sleeves 22 need to occupy a large number of pipes of the cooling device 40, while the cooling device 40 can only provide a single pipe.

[0049] See also Figure 4 , Figure 4A schematic cross-sectional view of a portion of the structure of an aerosol collection device provided in an embodiment of the present application. Specifically in the embodiment, the connector 43 includes a liquid inlet 431, and the liquid inlet 431 is used to connect the liquid outlet pipe 42 of the cooling device 40. The liquid inlet 431 is connected to the transition channel 433, and multiple transition channels 433 are arranged in sequence along the width direction of the connector 43. The end of the transition channel 433 relatively far away from the liquid inlet 431 is provided with a liquid outlet 432, and the liquid outlet 432 is used to connect the liquid inlet end 221 of the condensing sleeve 22. Therefore, after the condensate in the cooling device 40 is cooled, it flows into the connector 43 through the liquid outlet pipe 42, enters from the liquid inlet 431, flows to multiple transition channels 433 respectively, and then flows out from the liquid outlet 432 corresponding to the transition channel 433 to each condensing sleeve 22, thereby realizing the diversion effect of the connector 43 on the condensate.

[0050] Similarly, the connecting component 43 can also be arranged between the liquid inlet pipe 41 of the cooling device 40 and the liquid outlet end 222 of the condensing sleeve 22, so that the condensate of multiple condensing sleeves 22 can be uniformly recovered to the cooling device 40 through the connecting component 43 for circulating cooling and cooling. The connecting component 43 here has the same principle, and can refer to the setting of the connecting component 43 arranged between the liquid outlet pipe 42 and the liquid inlet end 221 of the condensing device in the aforementioned embodiment, and will not be repeated here.

[0051] In some embodiments, the connector 43 further includes a flow regulating member 434 for regulating the flow of condensate in each liquid outlet 432. It can be understood that, because when the condensate flows into the liquid inlet 431, when the flow is relatively small, the transition channel 433 relatively close to the liquid inlet 431 is closer to the liquid inlet 431 than the transition channel 433 relatively far from the liquid inlet 431, so the flow is more concentratedly distributed in the transition channel 433 relatively close to the liquid inlet 431, resulting in a larger flow at the corresponding liquid outlet 432, which in turn results in the condensation sleeve 22 corresponding to the liquid outlet 432 being cooled by more condensate in the capture experiment, which can provide a more stable low-temperature condition, so that different condensation sleeves 22 have different temperatures, which will also affect the accuracy of the experimental results.

[0052] See also Figure 5 and Figure 6 , Figure 5 This is a schematic cross-sectional structure diagram of a connector 43 provided in one embodiment of the present application. Figure 6A schematic diagram of the cross-sectional structure of the connecting member 43 provided in another embodiment of the present application. Specifically in this embodiment, the flow regulating member 434 is an adjusting screw, which is movably arranged in the liquid outlet 432 along the radial direction of the liquid outlet 432. When the adjusting screw does not penetrate into the liquid outlet 432, the flow in the liquid outlet 432 is not controlled by the flow regulating member 434; when the adjusting screw partially penetrates into the liquid outlet 432, part of the cross-sectional area of ​​the liquid outlet 432 is shielded by the inserted part of the adjusting screw, resulting in a decrease in the flow in the corresponding liquid outlet 432; when the adjusting screw completely penetrates into the liquid outlet 432, the cross-sectional area of ​​the liquid outlet 432 is completely shielded by the inserted adjusting screw, and the condensate cannot flow out of the liquid outlet 432, which essentially disconnects the liquid outlet 432 from the outside.

[0053] Therefore, through the flow regulating member 434, for the liquid outlets 432 with different flow rates, their flow rates can be regulated by the flow regulating member 434, so that the flow rate of each liquid outlet 432 is close to the same, thereby reducing the problem of different temperatures of each condensing sleeve 22 caused by the flow rate of each liquid outlet 432, which affects the accuracy of the experimental results.

[0054] In some embodiments, a temperature detector (not shown) is further provided in the condensing sleeve 22, and the temperature detector is used to detect the actual temperature of the condensing sleeve 22, so that the user can adjust the flow rate of the corresponding liquid outlet 432 according to the actual temperature of the condensing sleeve 22. In some cases, the flow rate between each condensing sleeve 22 is not convenient to determine directly, and the user cannot adjust the flow rate of the liquid outlet 432 according to the difference in flow rate. However, there is a correlation between the temperature of the condensing sleeve 22 and the flow rate of the liquid outlet 432, so the flow rate of the liquid outlet 432 can be directly adjusted by the condensing tube temperature, which can also effectively ensure the accuracy of the experimental results.

[0055] When the aerosol collection device in the embodiment of the present application is used in a specific application, first insert the electronic cigarette into the suction nozzle 11 of the frame 10 and set the electronic cigarette working mode. Then connect the absorption bottle 21 in the capture trap 20 with the suction nozzle 11 and the suction device 30 by air circuit. Then, the condensation sleeve 22 is sleeved on the outside of the absorption bottle 21 and connected to the condensate circulation pipeline. The electronic cigarette generates aerosol when it is working, and the suction device 30 generates negative pressure by suction to make the aerosol flow to the absorption bottle 21. At the same time, the cooling device 40 transports condensate to the condensation sleeve 22 to reduce the temperature of the absorption solution, so that the aerosol enters the absorption bottle 21 and is captured by the absorption solution under low temperature conditions. The unabsorbed aerosol is guided from the absorption bottle 21 to the next capture trap 20 until the aerosol is completely collected.

[0056] In summary, the aerosol collection device provided by the present application achieves low-temperature capture of aerosols by cooling the outside of the absorption bottle 21 by arranging a condensing sleeve 22. During the capture experiment, the cooling device 40 can circulate and cool the condensate in the condensing sleeve 22, so that the condensing sleeve 22 can maintain a low temperature during the experiment. At the same time, in order to improve the experimental effect, multiple groups of experiments are usually required, so a connector 43 is also provided so that multiple groups of condensing sleeves 22 can be connected to the cooling device 40 at the same time for cooling. A flow regulating member 434 is also provided on the connector 43 to reduce the temperature difference caused by the different flow rates of each transition channel 433 and improve the accuracy of the experimental results.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Under the idea of ​​the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. 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 present invention.

Claims

1. An aerosol collection device, characterized in that: include: A frame is provided with a suction nozzle, and the suction nozzle is used to collect aerosol; A trap, comprising an absorption bottle and a condensation sleeve sleeved outside the absorption bottle, one end of the absorption bottle is connected to the suction nozzle, the absorption bottle is used to contain absorption liquid to capture the aerosol, and the condensation sleeve is used to contain condensation liquid to reduce the temperature of the absorption bottle; A suction device, connected to the other end of the absorption bottle opposite to the suction nozzle, used to generate negative pressure to provide power for aerosol flow; The cooling device is provided with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are respectively connected to the condensing sleeve, the liquid inlet pipe is used to introduce the condensate in the condensing sleeve into the cooling device for cooling, and the liquid outlet pipe is used to guide the cooled condensate to the condensing sleeve.

2. The device according to claim 1, characterized in that The capture trap includes at least two absorption bottles and two condensation sleeves, each of the condensation sleeves is sleeved on the outside of a corresponding absorption bottle, and each of the absorption bottles has an air inlet end and an air outlet end, wherein the air inlet end of one of the absorption bottles is connected to the suction nozzle, the air outlet end of the absorption bottle is connected to the air inlet end of another absorption bottle, and the air outlet end of the other absorption bottle is connected to the suction device.

3. The device according to claim 2, characterized in that The aerosol collection device comprises a plurality of the collection traps. The frame is provided with mounting grooves for accommodating the plurality of the collection traps. The frame is provided with a plurality of the suction nozzles, and each of the suction nozzles is connected to a corresponding absorption bottle.

4. The device according to claim 2, characterized in that The condensing sleeve has a liquid inlet end and a liquid outlet end, wherein the liquid inlet end of one of the condensing sleeves is connected to the liquid inlet pipe, the liquid outlet end of the condensing sleeve is connected to the liquid inlet end of another condensing sleeve, and the liquid outlet end of the other condensing sleeve is connected to the liquid inlet pipe.

5. The device according to claim 2, characterized in that The condensing sleeve has a liquid inlet end and a liquid outlet end. The liquid inlet end of each condensing sleeve is respectively connected to the liquid outlet pipe, and the liquid outlet end of each condensing sleeve is respectively connected to the liquid inlet pipe.

6. The device according to claim 1, characterized in that A temperature detector is arranged inside the condensing sleeve to indicate the temperature of the condensing sleeve.

7. The device according to any one of claims 1 to 6, characterized in that The cooling device further comprises a connecting piece, which is connected to a liquid outlet pipe between the plurality of condensing sleeves and the cooling device and is used for diverting the condensate to the plurality of condensing sleeves.

8. The device according to claim 7, characterized in that The connecting piece includes a liquid inlet and a plurality of liquid outlets, the liquid inlet is connected to the liquid outlet pipe, and each of the liquid outlets is connected to the liquid inlet end of a corresponding condensing sleeve.

9. The device according to claim 8, characterized in that The connecting piece also includes a flow regulating piece, and the flow regulating piece is movably arranged in the liquid outlet along the radial direction of the liquid outlet.

10. The device according to claim 9, characterized in that The flow regulating member is an adjusting screw, and the adjusting screw is threadedly connected to the liquid outlet.

Images