Aerosol collection device

Abstract

The present application relates to an aerosol collecting device, which comprises a collecting tube, an absorption container and a suction member. The collecting tube comprises an at least partially curved deposition tube segment and a first end and a second end connected to both ends of the deposition tube segment, the first end is used to connect an atomization device, the absorption container is used to hold an absorption liquid and the absorption container is in communication with the second end. The suction member is capable of being in communication with the absorption container and capable of generating a negative pressure to make the aerosol generated by the atomization device flow from the first end through the collecting tube into the absorption container, so that the liquid component in the aerosol is deposited in the deposition tube segment to form a deposition liquid and the gaseous component in the aerosol is dissolved in the absorption liquid.

Description

Technical Field

[0001] This utility model relates to the field of atomization technology, and in particular to an aerosol collection device. Background Technology

[0002] Atomizing devices are used to generate aerosols. In order to meet the needs of modern tobacco product research and development, quality control and safety assessment, devices for collecting aerosols have been developed for testing purposes.

[0003] Traditional aerosol collection methods include the Cambridge IEM filter method, the two-stage series absorption bottle method, the cold trap method, and the electrostatic trap method. While the Cambridge IEM filter can effectively intercept both solid and liquid particles, it has insufficient absorption of gaseous components, is easily saturated, requires frequent replacement, and is costly. The two-stage series absorption bottle method can only selectively capture specific components, and unabsorbed aerosols can corrode the equipment and piping. The cold trap method and the electrostatic trap method are difficult to popularize due to their expensive equipment, high energy consumption, and complex maintenance.

[0004] The above information disclosed in the background art of this application is only for understanding the background of the concept of this application, and does not indicate or imply that it includes information of the prior art. Utility Model Content

[0005] Therefore, it is necessary to provide an aerosol collection device to address the above problems.

[0006] This application provides an aerosol collection device, comprising:

[0007] The collection tube includes at least a partially curved deposition tube segment and a first end and a second end connected to both ends of the deposition tube segment, wherein the first end is used to connect to an atomizing device.

[0008] An absorption container, wherein the absorption container is used to hold the absorption liquid and is connected to the second end; and

[0009] A suction device is provided, which is connected to the absorption container and can generate negative pressure so that the aerosol generated by the atomizing device flows from the first end into the absorption container through the collection tube, so that the liquid components in the aerosol are deposited on the deposition tube section to form a deposition liquid and the gaseous components in the aerosol are dissolved in the absorption liquid.

[0010] The above-mentioned aerosol collection device can achieve at least the following beneficial effects:

[0011] The aerosol collection device provided in this application achieves efficient separation and collection of aerosol components through an innovative structural design, offering significant advantages. The collection tube of this aerosol collection device employs a deposition tube section design with at least partial curvature. This partial curvature increases the pipe length, facilitating the cooling and liquefaction of liquid components in the aerosol. Furthermore, the partially curved deposition tube section allows for more collisions between the aerosol and the inner wall of the collection tube during flow, resulting in efficient deposition of liquid components to form a sediment liquid. Simultaneously, gaseous components are carried by the airflow into the absorption container and dissolve in the absorption liquid, achieving physical separation of gaseous and liquid components and significantly improving the collection efficiency of various components. The integrated design of the device simplifies the operation process, eliminating the need for frequent consumable replacements. The stable negative pressure generated by the suction component ensures continuous aerosol flow, and the detachable and washable deposition tube section facilitates reuse. Compared to the traditional filter method, this significantly reduces consumable costs and waste generation. The aerosol collection device designed in this application exhibits significant economic and environmental benefits. This aerosol collection device allows for flexible replacement of the absorbent liquid according to detection needs (in other words, the absorbent liquid can be adjusted based on the target analyte; for example, dilute nitric acid can be used as the absorbent liquid for heavy metals, while acetonitrile or other organic reagents can be used for aldehydes and ketones). It is suitable for collecting aerosols generated by various nebulizers, and is particularly well-suited for high-flow-rate, long-duration aerosol collection. By reducing cross-interference between components through physical separation, it enables targeted and quantitative collection of the sediment and absorbent liquids, providing a more accurate sample basis for subsequent component analysis. The collected sediment and absorbent liquids can be tested separately or mixed before testing, improving the flexibility, convenience, and accuracy of the detection. Through its innovative structural design, this device effectively addresses the shortcomings of traditional aerosol collection methods in terms of efficiency, cost, and ease of operation, providing a superior solution for aerosol component collection and subsequent testing and analysis.

[0012] In some embodiments, the deposition tube segment includes multiple annular sub-tubes, which are sequentially connected and coiled in a spiral shape. The spirally coiled annular sub-tubes form a continuously curved flow channel, significantly increasing the aerosol flow path length and extending the residence time. The continuous bending structure of the multiple annular sub-tubes forces the aerosol to repeatedly change its flow direction, making it easier for liquid particles to contact and deposit against the tube wall through inertial collisions and centrifugal forces. This structural design also increases the effective cooling area of ​​the tube wall, promoting the condensation and liquefaction of volatile components in the aerosol. The continuous connection design of the annular sub-tubes avoids the flow dead zones that may exist in traditional bends, ensuring uniform aerosol flow and improving the uniformity of liquid component deposition. Furthermore, the spirally coiled structure means that a longer deposition tube segment can be placed within a limited space, making the overall structure of the aerosol collection device more compact and easier to integrate.

[0013] In some embodiments, the number of annular sub-tubes is 8-10. This can be achieved by the deposition tube segment 130 coiling 8-10 times. This specific range of 8-10 annular sub-tubes has been experimentally verified to achieve optimal aerosol collection performance. The combination of 8-10 annular sub-tubes provides sufficient airflow path length and bends while maintaining the compactness of the aerosol collection device, allowing the liquid components in the aerosol to be sufficiently cooled and deposited by collision with the tube wall. Understandably, a smaller number of annular sub-tubes may result in insufficient aerosol residence time, affecting collection efficiency; while an excessive number of annular sub-tubes may increase airflow resistance and reduce sampling rate. Experimental data shows that the configuration of 8-10 annular sub-tubes achieves the best balance between collection efficiency and airflow resistance, resulting in better aerosol collection while maintaining a stable airflow velocity.

[0014] In some embodiments, each of the annular sub-tubes is coiled to form a ring with a diameter of 15cm-20cm.

[0015] In some embodiments, the aerosol collection device further includes a winding element around which the deposition tube segment is coiled. This winding element provides rigid support for the coiling of the deposition tube segment, ensuring the stability of the spiral structure. The design of the winding element's side surface allows the deposition tube segment to maintain a preset coiling spacing and radius of curvature, preventing blockages in the collection tube due to deformation caused by mechanical vibration or airflow impact, or pipe tangling. With the winding element as support, uniform gaps are formed between the annular sub-tubes of the deposition tube segment, ensuring sufficient contact between the aerosol and the tube wall while maintaining a smooth airflow channel. The selection of the winding element material can balance structural strength and heat conduction requirements, supporting the tube segment while assisting in controlling the tube wall temperature distribution. Furthermore, the geometric design of the winding element facilitates rapid installation and positioning of the deposition tube segment, which is beneficial for the modular assembly and maintenance of the device.

[0016] In some embodiments, the inner diameter of the collection tube is 3.5mm-4mm. The inner diameter range of the annular sub-tube has been experimentally verified to effectively balance aerosol flow characteristics and deposition efficiency, avoiding the decrease in flow rate and deposition efficiency caused by excessively large inner diameters.

[0017] In some embodiments, the suction device is a smoke extractor.

[0018] In some embodiments, the volume of the collection tube is not less than 7 times the volume of the aerosol generated in a single operation of the atomizing device.

[0019] In some embodiments, the aerosol collection device has a first operating state and a second operating state. In the first operating state, the suction element is connected to the absorption container. The aerosol collection device also includes a pump body. In the second operating state, one end of the pump body is connected to the first end, and the other end of the pump body is connected to the absorption container, so that the sediment and the absorption liquid are mixed to form a sample solution. The aerosol collection device has multiple operating states to adapt to different needs. In the first operating state, the suction element is directly connected to the absorption container, which can be considered as the aerosol collection mode. At this time, after the aerosol completes the initial liquid component separation in the sedimentation tube, the remaining gaseous component enters the absorption container. In the second operating state, the fluid path is changed by the intervention of the pump body. One end of the pump body is connected to the first end of the sedimentation tube, and the other end is connected to the absorption container, forming a closed loop system. In this state, the pump body drives the sediment and the absorption liquid to be forcibly mixed, ultimately forming a uniform sample solution.

[0020] In some embodiments, during the second operating state, the total flow rate per unit time in the collection tube is greater than three times the volume of the absorbent liquid.

[0021] In some embodiments, during the second operating state, the flow rate in the collection tube is greater than 5 mL / min.

[0022] In some embodiments, the pump body operates for 15 to 20 minutes in the second operating state.

[0023] In some embodiments, the aerosol collection device further includes a third operating state. In this third operating state, the absorption container is used to hold cleaning fluid, one end of the pump body is connected to the first end, and the other end of the pump body is connected to the absorption container, so that the cleaning fluid flows through the collection tube. In the third operating state, the absorption container is used to hold cleaning fluid, and the pump body drives the cleaning fluid to circulate within the collection tube, thereby cleaning the inner wall of the absorption container and the wall of the collection tube for residues. This cleaning mode ensures thorough removal of residual substances from the previous sampling by optimizing the flow rate and running time, avoiding cross-contamination of samples. The cleaning process can use cleaning fluids such as deionized water and organic solvents as needed.

[0024] In some embodiments, the aerosol collection device further includes a gas guide tube, one end of which extends into the absorption container and is below the surface of the liquid contained in the absorption container, and the other end of which is connected to the second end. This structural design allows aerosols to enter the absorption liquid through the gas guide tube after flowing through the collection tube, achieving efficient capture of aerosol particles in the absorption liquid.

[0025] In some embodiments, the absorption container is further provided with a vent, which is located above the liquid surface of the liquid contained in the absorption container; in the first working state, the vent is connected to the suction member; in the second working state or the third working state, the vent is connected to the pump body.

[0026] In some embodiments, the air guide tube is detachably connected to the second end. The air guide tube and the second end of the collection tube can be detachably connected via standardized quick-release interfaces, such as Luer connectors or snap-fit ​​connections, to facilitate individual cleaning or replacement of the air guide tube and avoid cross-contamination.

[0027] In some embodiments, in the first working state, the first end is detachably connected to the atomizing device, and the ventilation part is detachably connected to the suction component.

[0028] In some embodiments, in the second or third operating state, the first end is detachably connected to one end of the pump body, and the venting part is detachably connected to the other end of the pump body. The aerosol collection device employs a modular, detachable design to achieve flexible switching between multiple operating states. In the first operating state (sampling mode), the first end of the collection tube is detachably connected to the atomizing device, and the venting part of the absorption container is detachably connected to the suction component. In the second or third operating state, the first end of the collection tube and the venting part of the absorption container are detachably connected to both ends of the pump body, respectively. This modular design allows the device to quickly switch between the first, second, and third operating states, improving operational convenience and maintenance efficiency, and is particularly suitable for laboratory testing and other scenarios requiring frequent switching of operating modes. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A schematic diagram of the aerosol collection device provided in one embodiment of the present invention in its first working state.

[0031] Figure 2 This is a schematic diagram of the aerosol collection device in a second working state according to an embodiment of the present invention.

[0032] Figure 3This is a schematic diagram of the aerosol collection device provided in one embodiment of the present invention in its third working state.

[0033] Figure label:

[0034] 10. Aerosol collection device; 20. Atomizing device; 100. Collection pipe; 110. First end; 120. Second end; 130. Deposition pipe section; 131. Annular sub-pipe; 200. Absorption container; 210. Ventilation section; 300. Suction component; 410. Absorbent liquid; 420. Cleaning liquid; 500. Winding component; 600. Air guide pipe; 700. Pump body; D. Diameter. Detailed Implementation

[0035] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0036] Please see Figure 1 In some embodiments, this application provides an aerosol collection device 10, which includes a collection tube 100, an absorption container 200, and a suction member 300. The collection tube 100 includes a deposition tube segment 130 that is at least partially bent and a first end 110 and a second end 120 connected to both ends of the deposition tube segment 130. The first end 110 is used to connect to an atomizing device 20. The absorption container 200 is used to hold an absorbent liquid 410 and is in communication with the second end 120. The suction member 300 is in communication with the absorption container 200 and can generate a negative pressure so that the aerosol generated by the atomizing device 20 flows from the first end 110 through the collection tube 100 into the absorption container 200, so that the liquid components in the aerosol are deposited in the deposition tube segment 130 to form a deposition liquid and the gaseous components in the aerosol are dissolved in the absorbent liquid 410. The atomizing device 20 can atomize the aerosol generating matrix to form an aerosol. The aerosol generating matrix can refer to a material that can be atomized under certain conditions to provide aerosol components.

[0037] The above-mentioned aerosol collection device 10 can achieve at least the following beneficial effects:

[0038] The aerosol collection device 10 provided in this application achieves efficient separation and collection of aerosol components through an innovative structural design, offering significant advantages. The collection pipe 100 of the aerosol collection device 10 employs a deposition pipe section 130 design with at least partial curvature. This partial curvature increases the pipe length, facilitating the cooling and liquefaction of liquid components in the aerosol. Furthermore, the partially curvature of the deposition pipe section 130 allows for more collisions between the aerosol and the inner wall of the collection pipe 100 during aerosol flow, resulting in efficient deposition of liquid components to form a sediment. Simultaneously, gaseous components enter the absorption container 200 with the airflow and dissolve in the absorption liquid 410, achieving physical separation of gaseous and liquid components and significantly improving the collection efficiency of various components. The integrated design of the device simplifies the operation process, eliminating the need for frequent replacement of consumables. The stable negative pressure generated by the suction component 300 ensures continuous aerosol flow, and the detachable and washable deposition pipe section 130 facilitates reuse. Compared to the traditional filter method, this significantly reduces consumable costs and waste generation. The aerosol collection device 10 designed in this application exhibits significant economic and environmental benefits. The aerosol collection device 10 allows for flexible replacement of the absorbent 410 according to detection needs (in other words, the absorbent 410 can be adjusted based on the target analyte; for example, if the target analyte is a heavy metal, dilute nitric acid can be used as the absorbent 410; if the target analyte is an aldehyde or ketone, acetonitrile or other organic reagents can be used). It is suitable for collecting aerosols generated by various nebulizers 20, and is particularly well-suited for high-flow-rate, long-duration aerosol collection. By reducing cross-interference between components through physical separation, it enables the directional and quantitative collection of the sediment and absorbent 410, providing a more accurate sample basis for subsequent component analysis. The collected sediment and absorbent 410 can be tested separately, or they can be mixed before testing, improving the flexibility, convenience, and accuracy of the detection. Through its innovative structural design, this device effectively addresses the shortcomings of traditional aerosol collection methods in terms of efficiency, cost, and ease of operation, providing a superior solution for aerosol component collection and subsequent testing and analysis.

[0039] like Figure 1 , Figure 2 and Figure 3As shown, in some embodiments, the deposition tube 130 includes multiple annular sub-tubes 131, which are connected sequentially and coiled in a spiral shape. The spirally coiled annular sub-tubes 131 form a continuously curved flow channel, significantly increasing the aerosol flow path length and extending the residence time. The continuous bending structure of the multiple annular sub-tubes 131 forces the aerosol to repeatedly change its flow direction, making it easier for liquid particles to contact and deposit against the tube wall through inertial collisions and centrifugal forces. This structural design also increases the effective cooling area of ​​the tube wall, promoting the condensation and liquefaction of volatile components in the aerosol. The continuous connection design of the annular sub-tubes 131 avoids the flow dead zones that may exist in traditional bends, ensuring uniform aerosol flow and improving the uniformity of liquid component deposition. Furthermore, the spirally coiled structure means that a longer deposition tube 130 can be placed within a limited space, making the overall structure of the aerosol collection device 10 more compact and easier to integrate.

[0040] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the number of annular sub-tubes 131 is 8-10, which may be the deposition tube segment 130 coiled 8-10 times. This specific range of 8-10 annular sub-tubes 131 has been experimentally verified to achieve optimal aerosol collection performance. The combination of 8-10 annular sub-tubes 131 provides sufficient airflow path length and bends while maintaining the compactness of the aerosol collection device 10, allowing the liquid components in the aerosol to be sufficiently cooled and deposited by collision with the tube wall. Understandably, a smaller number of annular sub-tubes 131 may result in insufficient aerosol residence time, affecting collection efficiency; while an excessive number of annular sub-tubes 131 may increase airflow resistance and reduce sampling rate. Experimental data show that the configuration of 8-10 annular sub-tubes 131 achieves the best balance between collection efficiency and airflow resistance, resulting in better aerosol collection performance while maintaining a stable airflow velocity.

[0041] like Figure 3 As shown, in some embodiments, each of the annular sub-tubes 131 is coiled to form a ring with a diameter D of 15cm-20cm.

[0042] like Figure 1 and Figure 2As shown, in some embodiments, the aerosol collection device further includes a winding element 500, around which the deposition tube segment 130 is coiled. The winding element 500 provides rigid support for the coiling of the deposition tube segment 130, ensuring the stability of the spiral structure of the deposition tube segment 130. The design of the side circumferential surface of the winding element 500 allows the deposition tube segment 130 to maintain a preset coiling spacing and radius of curvature, avoiding blockage of the collection tube 100 due to deformation caused by mechanical vibration or airflow impact, or pipe knotting. With the support of the winding element 500, a uniform gap is formed between the annular sub-tubes 131 of the deposition tube segment 130, ensuring sufficient contact between the aerosol and the tube wall while maintaining a smooth airflow channel. The material selection of the winding element 500 can balance structural strength and heat conduction requirements, supporting the tube segment while assisting in controlling the temperature distribution of the tube wall. Furthermore, the geometric design of the winding element 500 facilitates the rapid installation and positioning of the deposition tube segment 130, which is beneficial for the modular assembly and maintenance of the device. Furthermore, in some embodiments, the winding member 500 may be cylindrical with a diameter D of 15cm-20cm, and the annular sub-tube 131 is coiled around the outer circumference of the winding member 500. The diameter D of the winding member 500 may be considered as the diameter D of the ring formed by the coiling of the annular sub-tube 131.

[0043] In some embodiments, the inner diameter of the collection tube 100 is 3.5 mm to 4 mm. The inner diameter range of the annular sub-tube 131 has been experimentally verified to effectively balance aerosol flow characteristics and deposition efficiency, avoiding the decrease in flow rate and deposition efficiency caused by an excessively large inner diameter.

[0044] In some embodiments, the volume of the collection tube 100 is not less than 7 times the volume of the aerosol generated by the atomizing device 20 in a single operation.

[0045] In some embodiments, the suction component 300 may include, but is not limited to, a smoke extractor.

[0046] like Figure 1 and Figure 2As shown, in some embodiments, the aerosol collection device 10 has a first operating state and a second operating state. In the first operating state, the suction element 300 is connected to the absorption container 200. The aerosol collection device 10 also includes a pump body 700. In the second operating state, one end of the pump body 700 is connected to the first end 110, and the other end of the pump body 700 is connected to the absorption container 200, so that the sediment and the absorption liquid 410 are mixed to form a sample solution. The aerosol collection device 10 has multiple operating states to adapt to different needs. In the first operating state, the suction element 300 is directly connected to the absorption container 200, which can be considered as the aerosol collection mode. At this time, after the aerosol completes the initial liquid component separation in the sedimentation tube section 130, the remaining gaseous component enters the absorption container 200. In the second working state, the fluid path is changed by the intervention of the pump body 700. One end of the pump body 700 is connected to the first end 110 of the sedimentation tube section 130, and the other end is connected to the absorption container 200 to form a closed loop system. In this state, the pump body 700 drives the sediment liquid and the absorption liquid 410 to be forcibly mixed, and finally a uniform sample liquid is formed.

[0047] In some embodiments, during the second operating state, the total flow rate per unit time in the collection tube 100 is greater than three times the volume of the absorbent liquid 410.

[0048] In some embodiments, during the second operating state, the flow rate within the collection tube 100 is greater than 5 mL / min.

[0049] In some embodiments, the pump body 700 operates for 15 to 20 minutes in the second operating state.

[0050] like Figure 3 As shown, in some embodiments, the aerosol collection device 10 further includes a third operating state. In this third operating state, the absorption container 200 is used to hold the cleaning solution 420, one end of the pump body 700 is connected to the first end 110, and the other end of the pump body 700 is connected to the absorption container 200, so that the cleaning solution flows through the collection tube 100. In the third operating state, the absorption container 200 is used to hold the cleaning solution 420, and the pump body 700 drives the cleaning solution 420 to circulate within the collection tube 100, thereby cleaning the inner wall of the absorption container 200 and the tube wall of the collection tube 100 of any residues. This cleaning mode ensures thorough removal of residual substances from the previous sampling by optimizing the flow rate and running time, avoiding cross-contamination of samples. The cleaning process can use cleaning solutions such as deionized water or organic solvents 420 as needed.

[0051] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the aerosol collecting device 10 further includes a gas guide tube 600, one end of which extends into the absorption container 200 and is located below the liquid surface of the liquid contained in the absorption container 200, and the other end of which is connected to the second end 120. This structural design allows aerosols to enter the absorption liquid 410 through the gas guide tube 600 after flowing through the collecting tube 100, achieving efficient capture of aerosol particles in the absorption liquid 410.

[0052] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the absorption container 200 is further provided with a venting section 210, which is located above the liquid surface of the liquid contained in the absorption container 200; in the first working state, the venting section 210 is connected to the suction member 300; in the second working state or the third working state, the venting section 210 is connected to the pump body 700.

[0053] In some embodiments, the air duct 600 is detachably connected to the second end 120. In the first operating state, the first end 110 is detachably connected to the atomizing device 20, and the ventilation section 210 is detachably connected to the suction component 300. In the second or third operating state, the first end 110 is detachably connected to one end of the pump body 700, and the ventilation section 210 is detachably connected to the other end of the pump body 700. The aerosol collection device 10 adopts a modular and detachable design to achieve flexible switching between multiple operating states. The air duct 600 and the second end 120 of the collection tube 100 can be detachably connected through standardized quick-release interfaces, such as Luer connectors or snap-fit ​​connections, to facilitate individual cleaning or replacement of the air duct 600 and avoid cross-contamination. In the first operating state (sampling mode), the first end 110 of the collection tube 100 is detachably connected to the atomizing device 20, and the ventilation section 210 of the absorption container 200 is detachably connected to the suction component 300. In the second or third operating state, the first end 110 of the collection tube 100 and the vent 210 of the absorption container 200 are detachably connected to both ends of the pump body 700. This modular design allows the device to quickly switch between the first, second, and third operating states, improving ease of operation and maintenance efficiency, and is particularly suitable for laboratory testing and other scenarios that require frequent switching of operating modes.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0056] In the description of this utility model, it should be understood that the terms "axial", "radial", "circumferential", "length", "width", "thickness", "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0059] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] It should be noted that when an element is referred to as being "attached to," "fixed to," or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0061] In this specification, the use of terms such as "an embodiment," "another implementation," etc., refers to a specific feature, structure, material, or characteristic described in connection with that embodiment or example that is included in at least one embodiment or example of the present invention. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiment or example. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

Claims

1. An aerosol collection device, characterized in that, include: The collection tube includes at least a partially curved deposition tube segment and a first end and a second end connected to both ends of the deposition tube segment, wherein the first end is used to connect to an atomizing device. An absorption container, wherein the absorption container is used to hold the absorption liquid and is connected to the second end; as well as A suction device is provided, which is connected to the absorption container and can generate negative pressure so that the aerosol generated by the atomizing device flows from the first end into the absorption container through the collection tube, so that the liquid components in the aerosol are deposited on the deposition tube section to form a deposition liquid and the gaseous components in the aerosol are dissolved in the absorption liquid.

2. The aerosol collection device according to claim 1, characterized in that, The deposition tube segment includes multiple annular sub-tubes, which are connected in sequence and coiled in a spiral shape.

3. The aerosol collection device according to claim 2, characterized in that, The number of the annular sub-tubes is 8-10; And / or, each of the said annular sub-tubes is coiled to form a ring with a diameter of 15cm-20cm; And / or, the aerosol collection device further includes a winding element, the deposition tube section being wound around the side circumferential surface of the winding element.

4. The aerosol collection device according to any one of claims 1 to 3, characterized in that, The inner diameter of the collection tube is 3.5mm-4mm; And / or, the suction device is a smoke extractor; And / or, the volume of the collection tube is not less than 7 times the volume of the aerosol generated in a single operation of the atomizing device.

5. The aerosol collection device according to any one of claims 1 to 3, characterized in that, The aerosol collection device has a first working state and a second working state; in the first working state, the suction element is connected to the absorption container; the aerosol collection device also includes a pump body, in the second working state, one end of the pump body is connected to the first end, and the other end of the pump body is connected to the absorption container, so that the sediment liquid and the absorption liquid are mixed to form a sample liquid.

6. The aerosol collection device according to claim 5, characterized in that, In the second working state, the total flow rate per unit time in the collection tube is greater than 3 times the volume of the absorbent liquid; And / or, in the second working state, the flow rate in the collection tube is greater than 5 mL / min; And / or, in the second operating state, the pump body operates for 15 to 20 minutes.

7. The aerosol collection device according to claim 5, characterized in that, The aerosol collection device also includes a third working state, in which the absorption container is used to hold the cleaning liquid, one end of the pump body is connected to the first end, and the other end of the pump body is connected to the absorption container, so that the cleaning liquid flows through the collection pipe.

8. The aerosol collection device according to claim 7, characterized in that, The aerosol collection device further includes a gas guide tube, one end of which extends into the absorption container and is located below the liquid surface of the liquid contained in the absorption container, and the other end of which is connected to the second end.

9. The aerosol collection device according to claim 8, characterized in that, The absorption container is also provided with a venting section, which is located above the liquid surface of the liquid contained in the absorption container; in the first working state, the venting section is connected to the suction component; in the second working state or the third working state, the venting section is connected to the pump body.

10. The aerosol collection device according to claim 9, characterized in that, The air guide tube is detachably connected to the second end; And / or, in the first working state, the first end is detachably connected to the atomizing device, and the ventilation part is detachably connected to the suction component; And / or, in the second working state or the third working state, the first end is detachably connected to one end of the pump body, and the vent is detachably connected to the other end of the pump body.

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