Aerosol collecting device

Abstract

The invention relates to an aerosol collecting device. The aerosol collecting device comprises a collecting pipe, an absorption container and a suction part. The collection pipe comprises a deposition pipe section which is at least partially bent, and a first end and a second end which are connected to the two ends of the deposition pipe section, the first end is used for being connected with an atomization device, and the absorption container is used for containing absorption liquid and is communicated with the second end. The suction part can be communicated with the absorption container and can generate negative pressure so that aerosol generated by the atomization device can flow into the absorption container from the first end through the collecting pipe. The liquid component in the aerosol is deposited in the deposition pipe section to form deposition liquid, and the gaseous component in the aerosol is dissolved in the absorption liquid.

Description

Technical Field

[0001] The present invention relates to the field of atomization technology, in particular to an aerosol collection device. Background Art

[0002] An atomizer is a device used to generate aerosols. In order to meet the needs of modern tobacco product research and development, quality control, and safety assessment, a device for collecting aerosols has been developed for testing.

[0003] Traditional aerosol collection methods include the Cambridge filter disc method, the two-stage absorption bottle method, the cold trap method, and the electrostatic trap method. While the Cambridge filter disc effectively intercepts solid and liquid particulate matter, it poorly absorbs gaseous components and is easily saturated, requiring frequent replacement and resulting in high costs. The two-stage absorption bottle method selectively captures only specific components, and unabsorbed aerosols can corrode equipment 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 of this application is only used to understand the background of the concept of this application, and does not indicate or suggest that it contains information of the prior art. Summary of the Invention

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

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

[0007] a collecting pipe, the collecting pipe comprising an at least partially curved deposition pipe section and a first end and a second end connected to both ends of the deposition pipe section, the first end being configured to connect to an atomizing device;

[0008] an absorption container, the absorption container being used to contain absorption liquid and the absorption container being in communication with the second end; and

[0009] A suction piece, which can be connected to the absorption container and can generate negative pressure to allow the aerosol generated by the atomization device to flow from the first end through the collection pipe into the absorption container, so that the liquid components in the aerosol are deposited in the deposition pipe 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 by the present application realizes efficient separation and collection of aerosol components through innovative structural design, which has significant advantages. The collection tube of the aerosol collection device adopts a deposition tube section design that is at least partially bent. The deposition tube section is at least partially bent to increase the length of the tube, which is beneficial to the cooling and liquefaction of the liquid components in the aerosol. The deposition tube section that is at least partially bent can also make the aerosol flow more and collide with the inner tube wall of the collection tube more, so that the liquid components are efficiently deposited to form a deposition liquid. At the same time, the gaseous components enter the absorption container with the air flow and dissolve in the absorption liquid, realizing the physical separation of gaseous and liquid components, and greatly improving the collection efficiency of various components. The integrated design of the device simplifies the operating process, and there is no need to frequently replace consumables. The stable negative pressure generated by the suction part ensures the continuous flow of the aerosol. The detachable and cleanable deposition tube section is easy to reuse. Compared with the traditional filter method, the consumable cost is greatly reduced and the waste generation is reduced. The aerosol collection device designed in this application is significantly economical and environmentally friendly. This aerosol collection device allows for flexible replacement of the absorption liquid according to testing requirements (in other words, the absorption liquid can be adjusted based on the target being tested. For example, if the target is heavy metals, dilute nitric acid can be used as the absorption liquid; if the target is aldehydes or ketones, acetonitrile or other organic reagents can be used as the absorption liquid). It is suitable for collecting aerosols generated by various atomization devices and is particularly well-suited for high-flow, long-term aerosol collection. By physically separating components to reduce cross-interference, the deposition liquid and absorption liquid can be collected in a targeted and quantitative manner, providing a more accurate sample basis for subsequent component analysis. The collected deposition liquid and absorption liquid can be tested separately or mixed before testing, enhancing the flexibility, convenience, and accuracy of testing. Through its innovative structural design, this device effectively addresses the shortcomings of traditional aerosol collection methods in terms of efficiency, cost, and ease of use, providing a superior solution for aerosol component collection and subsequent testing and analysis.

[0012] In some embodiments, the deposition tube segment includes a plurality of annular sub-tubes, which are connected in sequence and coiled in a spiral shape. The spirally coiled multiple annular sub-tubes form a continuously curved flow channel, which greatly increases the length of the aerosol flow path and prolongs the residence time. The continuous bending structure of the multiple annular sub-tubes forces the aerosol to repeatedly change its flow direction, and through inertial collision and centrifugal action, the liquid particles are more likely to contact and deposit on the tube wall. This structural design also increases the effective cooling area of ​​the tube wall, promotes the condensation and liquefaction of volatile components in the aerosol, and the continuous connection design of the annular sub-tubes avoids the flow dead corners that may exist in traditional curved tubes, ensuring uniform passage of the aerosol and improving the uniformity of deposition of liquid components. In addition, the spirally coiled structure means that a longer deposition tube segment can be placed in a limited space, making the overall structure of the aerosol collection device more compact and easy to integrate.

[0013] In some embodiments, the number of the annular sub-tubes is 8-10. This can be achieved by winding the deposition tube section 130 8-10 times. The setting of this specific number range of 8-10 annular sub-tubes has been verified by experiments to achieve the best aerosol collection effect. The combination of 8-10 annular sub-tubes can provide sufficient airflow path length and number of bends while ensuring the compactness of the aerosol collection device, so that the liquid components in the aerosol are fully cooled and collide with the tube wall to be deposited. It is understandable that a smaller number of annular sub-tubes may result in insufficient aerosol residence time, affecting the collection efficiency; while too many annular sub-tubes may increase airflow resistance and reduce the sampling rate. Experimental data show that the configuration of 8-10 annular sub-tubes can achieve the best balance between collection efficiency and airflow resistance, achieving better aerosol collection effect 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 15 cm to 20 cm.

[0015] In some embodiments, the aerosol collection device further includes a winding member, and the deposition tube segment is coiled around the side circumference of the winding member. The winding member provides rigid support for the coiling of the deposition tube segment, ensuring the stability of the spiral structure of the deposition tube segment. The side circumference design of the winding member enables the deposition tube segment to maintain a preset coiling spacing and curvature radius, avoiding the problem of blockage of the collection tube due to deformation or kinking of the pipe caused by mechanical vibration or airflow impact. After the winding member is supported, a uniform gap is formed between the annular sub-tubes of the deposition tube segment, which ensures that the aerosol fully contacts the tube wall and maintains a smooth airflow channel. The choice of the material of the winding member can take into account both structural strength and heat conduction requirements, and assist in regulating the temperature distribution of the tube wall while supporting the tube segment. In addition, the geometric configuration design of the winding member facilitates the rapid installation and positioning of the deposition tube segment, which is beneficial to the modular assembly and maintenance of the device.

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

[0017] In some embodiments, the suction device is a smoking machine.

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

[0019] In some embodiments, the aerosol collection device has a first working state and a second working state; in the first working state, the suction member is connected to the absorption container; the aerosol collection device also includes a pump body, and 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 deposition liquid and the absorption liquid are mixed to form a sample liquid. The aerosol collection device has multiple working states to adapt to different needs. In the first working state, the suction member is directly connected to the absorption container, which can be considered as an aerosol collection mode. At this time, after the aerosol completes the initial separation of the liquid component in the deposition tube section, the remaining gaseous component enters the absorption container. In the second working 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 deposition tube section, and the other end is connected to the absorption container, forming a closed circulation system. In this state, the pump body drives the deposition liquid and the absorption liquid to be forcibly mixed, and finally forms a uniform sample liquid.

[0020] In some embodiments, 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 absorption liquid.

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

[0022] In some embodiments, in the second working state, the working time of the pump body is 15 minutes to 20 minutes.

[0023] In some embodiments, the aerosol collection device also includes a third working state. In the third working state, the absorption container is used to hold a 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 tube. In the third working state, the absorption container is used to hold a cleaning liquid, and the pump body drives the cleaning liquid to circulate in the collection tube to clean the inner wall of the absorption container and the residue on the wall of the collection tube. This cleaning mode ensures that the residual substances from the previous sampling are completely removed by optimizing the flow rate and running time to avoid cross-contamination of samples. Deionized water, organic solvents and other cleaning liquids can be used as needed during the cleaning process.

[0024] In some embodiments, the aerosol collection device further includes an air guide tube, one end of which extends into the absorption container and is positioned below the liquid level within the absorption container, and the other end of which is in communication with the second end. This structural design allows the aerosol to enter the absorption liquid through the air guide tube after passing through the collection tube, thereby achieving efficient capture of aerosol particles in the absorption liquid.

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

[0026] In some embodiments, the airway tube is detachably connected to the second end. The airway tube and the second end of the collection tube can be detachably connected via a standardized quick-release interface, such as a Luer connector or a bayonet connection, to facilitate separate cleaning or replacement of the airway 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 vent is detachably connected to the suction member.

[0028] In some embodiments, 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. The aerosol collection device adopts a modular detachable design to achieve flexible switching between multiple working states. In the first working state (sampling mode), the first end of the collection tube is detachably connected to the atomizing device, and the vent of the absorption container is detachably connected to the suction piece. In the second working state or the third working state, the first end of the collection tube and the vent of the absorption container are detachably connected to both ends of the pump body respectively. This modular design enables the device to quickly switch between the first working state, the second working state and the third working state, thereby improving operational convenience and maintenance efficiency, and is particularly suitable for scenarios such as laboratory testing that require frequent switching of working modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

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

[0031] Figure 2 A schematic structural diagram of an aerosol collection device in a second working state provided by one embodiment of the present invention.

[0032] Figure 3A schematic structural diagram of an aerosol collection device in a third working state provided by one embodiment of the present invention.

[0033] Reference numerals:

[0034] 10. Aerosol collection device; 20. Atomization device; 100. Collection tube; 110. First end; 120. Second end; 130. Deposition tube section; 131. Annular sub-tube; 200. Absorption container; 210. Ventilation portion; 300. Suction element; 410. Absorption liquid; 420. Cleaning liquid; 500. Wrapping element; 600. Air guide tube; 700. Pump body; D, diameter. DETAILED DESCRIPTION

[0035] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] See also Figure 1 In some embodiments, the present application provides an aerosol collection device 10, comprising a collection tube 100, an absorption container 200, and a suction member 300. The collection tube 100 comprises an at least partially curved deposition tube section 130, and a first end 110 and a second end 120 connected to the deposition tube section 130. The first end 110 is used to connect to the atomization device 20, and the absorption container 200 is used to hold absorption liquid 410 and is in communication with the second end 120. The suction member 300 is capable of communicating with the absorption container 200 and generating negative pressure to cause the aerosol generated by the atomization device 20 to flow 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 section 130 to form a deposition liquid, and the gaseous components in the aerosol are dissolved in the absorption liquid 410. The atomizing device 20 may atomize an aerosol-generating substrate to form an aerosol. The aerosol-generating substrate may refer to a material that can be atomized to provide aerosol components under certain conditions.

[0037] The 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, which has significant advantages. The collection tube 100 of the aerosol collection device 10 adopts a deposition tube section 130 design that is at least partially curved. The deposition tube section 130 is at least partially curved, which increases the length of the tube and is conducive to cooling and liquefying the liquid components in the aerosol. The at least partially curved deposition tube section 130 can also cause more collisions with the inner tube wall of the collection tube 100 during the aerosol flow, so that the liquid components are efficiently deposited to form a deposition liquid. At the same time, the 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 greatly improving the collection efficiency of various components. The integrated design of the device simplifies the operating process and eliminates the need for frequent replacement of consumables. The stable negative pressure generated by the suction piece 300 ensures the continuous flow of the aerosol. The detachable and cleanable deposition tube section 130 is easy to reuse. Compared with the traditional filter method, the consumable cost is greatly reduced and the waste generation is reduced. The aerosol collection device 10 designed in this application is significantly economical and environmentally friendly. This aerosol collection device 10 allows for flexible replacement of the absorption liquid 410 according to testing requirements (in other words, the absorption liquid 410 can be adjusted based on the target being tested. For example, if the target is a heavy metal, dilute nitric acid can be used as the absorption liquid 410; if the target is an aldehyde or ketone, acetonitrile or other organic reagents can be used). It is suitable for collecting aerosols generated by various atomization devices 20 and is particularly well-suited for high-flow, long-term aerosol collection. By physically separating components to reduce cross-interference, the device allows for targeted, quantitative collection of the sedimentation liquid and absorption liquid 410, providing a more accurate sample basis for subsequent component analysis. The collected sedimentation liquid and absorption liquid 410 can be tested separately or mixed before testing, enhancing testing flexibility, convenience, and accuracy. Through its innovative structural design, this device effectively addresses the shortcomings of traditional aerosol collection methods in terms of efficiency, cost, and ease of use, 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 section 130 includes a plurality of annular sub-tubes 131, and the plurality of annular sub-tubes 131 are connected in sequence and coiled in a spiral shape. The spirally coiled plurality of annular sub-tubes 131 form a continuously curved flow channel, which greatly increases the length of the aerosol flow path and prolongs the residence time. The continuous bending structure of the plurality of annular sub-tubes 131 forces the aerosol to repeatedly change its flow direction, and through inertial collision and centrifugal action, the liquid particles are more likely to contact and deposit on the tube wall. This structural design also increases the effective cooling area of ​​the tube wall, promotes the condensation and liquefaction of volatile components in the aerosol, and the continuous connection design of the annular sub-tubes 131 avoids the flow dead corners that may exist in traditional curved tubes, ensuring uniform passage of the aerosol and improving the uniformity of deposition of the liquid components. In addition, the spirally coiled structure means that a longer deposition tube section 130 can be placed in a limited space, making the overall structure of the aerosol collection device 10 more compact and easy to integrate.

[0040] like Figure 1 、 Figure 2 and Figure 3 As shown, in some embodiments, the number of the annular sub-tubes 131 is 8-10, which means that the deposition tube section 130 is coiled 8-10 times. The setting of this specific number range of 8-10 annular sub-tubes 131 has been verified by experiments to achieve the best aerosol collection effect. The combination of 8-10 annular sub-tubes 131 can provide sufficient airflow path length and number of bends while ensuring the compactness of the aerosol collection device 10, so that the liquid components in the aerosol are fully cooled and collide with the tube wall to be deposited. It is understandable that a smaller number of annular sub-tubes 131 may result in insufficient aerosol residence time, affecting the collection efficiency; while too many annular sub-tubes 131 may increase airflow resistance and reduce the sampling rate. Experimental data shows that the configuration of 8-10 annular sub-tubes 131 can achieve the best balance between collection efficiency and airflow resistance, achieving better aerosol collection effect 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 15 cm-20 cm.

[0042] like Figure 1 and Figure 2As shown, in some embodiments, the aerosol collection device further includes a wrapping member 500, around the lateral surface of which the deposition tube segment 130 is coiled. The wrapping member 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 lateral design of the wrapping member 500 enables the deposition tube segment 130 to maintain a predetermined coiling spacing and curvature radius, preventing deformation or kinking of the tube due to mechanical vibration or airflow impact, which could lead to blockage of the collection tube 100. With support provided by the wrapping member 500, uniform gaps are 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 path. The material selection of the wrapping member 500 balances structural strength and thermal conductivity requirements, supporting the tube segment while assisting in regulating the temperature distribution of the tube wall. Furthermore, the geometric design of the wrapping member 500 facilitates the rapid installation and positioning of the deposition tube segment 130, facilitating modular assembly and maintenance of the device. Furthermore, in some embodiments, the winding member 500 can be cylindrical and have 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 can 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 size range of the annular sub-tube 131 has been experimentally verified to effectively balance aerosol flow characteristics and deposition efficiency, thereby 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 a single operation of the atomizing device 20.

[0045] In some embodiments, the suction member 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 working state and a second working state; in the first working state, the suction member 300 is in communication with the absorption container 200; the aerosol collection device 10 also includes a pump body 700. In the second working state, one end of the pump body 700 is in communication with the first end 110, and the other end of the pump body 700 is in communication with the absorption container 200, so that the deposition liquid and the absorption liquid 410 are mixed to form a sample liquid. The aerosol collection device 10 has multiple working states to meet different needs. In the first working state, the suction member 300 is directly in communication with the absorption container 200, which can be considered as an aerosol collection mode. At this time, after the aerosol completes the initial separation of the liquid component in the deposition 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 deposition tube section 130, and the other end is connected to the absorption container 200, forming a closed circulation system. In this state, the pump body 700 drives the deposition liquid and the absorption liquid 410 to be forced to mix, and finally forms a uniform sample liquid.

[0047] In some embodiments, in the second working state, the total flow rate per unit time in the collection pipe 100 is greater than 3 times the volume of the absorption liquid 410 .

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

[0049] In some embodiments, in the second working state, the working time of the pump body 700 is 15 minutes to 20 minutes.

[0050] like Figure 3 As shown, in some embodiments, the aerosol collection device 10 also includes a third working state. In the third working state, the absorption container 200 is used to hold the cleaning liquid 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 liquid flows through the collection tube 100. In the third working state, the absorption container 200 is used to hold the cleaning liquid 420, and the pump body 700 drives the cleaning liquid 420 to circulate in the collection tube 100 to clean the inner wall of the absorption container 200 and the residue on the wall of the collection tube 100. This cleaning mode ensures that the residual substances of the previous sampling are completely removed by optimizing the flow rate and running time to avoid cross contamination of samples. The cleaning liquid 420 such as deionized water and organic solvent can be selected as needed during the cleaning process.

[0051] like Figure 1 、 Figure 2 and Figure 3 As shown, in some embodiments, the aerosol collection device 10 further includes an air guide tube 600. One end of the air guide tube 600 extends into the absorption container 200 and is located below the liquid level of the absorption container 200. The other end of the air guide tube 600 is connected to the second end 120. This structural design allows the aerosol to enter the absorption liquid 410 through the air guide tube 600 after flowing through the collection tube 100, thereby 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 vent portion 210, and the vent portion 210 is located above the liquid level of the liquid contained in the absorption container 200; in the first working state, the vent portion 210 is connected to the suction member 300; in the second working state or the third working state, the vent portion 210 is connected to the pump body 700.

[0053] In some embodiments, the air guide tube 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 vent portion 210 is detachably connected to the suction member 300. In the second operating state or the third operating state, the first end 110 is detachably connected to one end of the pump body 700, and the vent portion 210 is detachably connected to the other end of the pump body 700. The aerosol collection device 10 adopts a modular, detachable design to enable flexible switching between multiple operating states. The air guide tube 600 and the second end 120 of the collection tube 100 can be detachably connected via a standardized quick-release interface, such as a Luer connector or a snap-on connection, facilitating separate cleaning or replacement of the air guide tube 600 and preventing 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, while the vent portion 210 of the absorption container 200 is detachably connected to the suction member 300. In the second or third operating state, the first end 110 of the collection tube 100 and the vent portion 210 of the absorption container 200 are detachably connected to the ends of the pump body 700. This modular design enables the device to quickly switch between the first, second, and third operating states, improving operational convenience and maintenance efficiency. It is particularly suitable for laboratory testing scenarios that require frequent switching of operating modes.

[0054] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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 above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

[0056] In the description of the present invention, it should be understood that the terms "axial", "radial", "circumferential", "length", "width", "thickness", "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 should not be understood as limiting the present invention.

[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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0058] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0059] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0060] It should be noted that when an element is referred to as being "provided on," "fixed on," or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate 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 implementation methods.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "other implementation methods", etc. means that the specific features, structures, materials or features described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic 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 those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

Claims

1. An aerosol collection device, characterized in that: include: a collecting pipe, the collecting pipe comprising an at least partially curved deposition pipe section and a first end and a second end connected to both ends of the deposition pipe section, the first end being configured to connect to an atomizing device; an absorption container, the absorption container being used to contain absorption liquid and the absorption container being in communication with the second end; as well as A suction piece, which can be connected to the absorption container and can generate negative pressure to allow the aerosol generated by the atomization device to flow from the first end through the collection pipe into the absorption container, so that the liquid components in the aerosol are deposited in the deposition pipe 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 pipe section includes a plurality of annular sub-pipes, which are sequentially connected 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 annular sub-tubes is coiled to form a ring with a diameter of 15 cm to 20 cm; And / or, the aerosol collecting device further comprises a winding member, and the deposition tube segment is coiled around the side circumference of the winding member.

4. The aerosol collection device according to any one of claims 1 to 3, characterized in that: The inner diameter of the collecting tube is 3.5mm-4mm; and / or, the suction element is a smoke extractor; And / or, the volume of the collection tube is not less than 7 times the volume of the aerosol generated by a single operation of the atomization 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 member is connected to the absorption container; the aerosol collection device also includes a pump body, and 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 deposition 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 absorption 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 working state, the working time of the pump body is 15 minutes 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 the third working state, the absorption container is used to hold 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 an air guide tube, one end of which extends into the absorption container and is located below the liquid level of the liquid contained in the absorption container, and the other end of the air guide tube is communicated with the second end.

9. The aerosol collection device according to claim 8, characterized in that: The absorption container is also provided with a vent portion, which is located above the liquid level of the liquid contained in the absorption container; in the first working state, the vent portion is connected to the suction member; in the second working state or the third working state, the vent portion 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 vent is detachably connected to the suction member; 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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