Aerosol trapping device

Abstract

The utility model discloses an aerosol trapping device, and relates to the technical field of aerosol trapped substance extraction. The aerosol trapping device comprises a trapping assembly and a cooling piece, the trapping assembly comprises a collecting piece and a circulating pipe, a containing cavity is formed in the collecting piece, and aerosol is introduced into the containing cavity; the circulating pipe is at least partially arranged in the accommodating cavity, the circulating pipe is provided with an inlet end and an outlet end which are opposite, the inlet end is communicated with the accommodating cavity, the outlet end is exposed out of the accommodating cavity, and the cooling piece is used for cooling the trapping assembly. In this way, the aerosol is condensed after entering the containing cavity of the collecting piece, part of substances in the gaseous aerosol are condensed into liquid, and the liquid substances are reserved in the containing cavity of the collecting piece; the residual substances in the gaseous aerosol flow into the runner pipe along with the airflow, and when the residual substances flow out along the runner pipe, the aerosol continues to be condensed in the runner pipe, so that the condensation path of the aerosol is increased, the condensable substances are condensed into liquid as much as possible, the trapping efficiency of the aerosol is improved, and the trapping loss is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of aerosol trapping and extraction, and particularly relates to an aerosol trapping device. BACKGROUND

[0002] Electronic atomization devices have been favored by more and more people due to their wider taste selection. In order to enrich the taste of generated aerosols, it is necessary to analyze the components of aerosols in research to determine the aroma components in the aerosols consumed by users.

[0003] In the related art, a Cambridge filter is usually used to trap aerosols, but this method has limited trapping efficiency and has a high loss in the trapping process. CONTENT OF THE UTILITY MODEL

[0004] The application aims to provide an aerosol trapping device, which can solve the problem of limited trapping efficiency and high loss in the trapping process in the related art when a Cambridge filter is used to trap aerosols.

[0005] To solve the above technical problems, the application is implemented as follows:

[0006] In one embodiment, the application provides an aerosol trapping device, which comprises a trapping assembly, a collection piece and a flow tube, the collection piece is provided with a containing cavity for passing in aerosols, the flow tube is at least partially arranged in the containing cavity, the flow tube has opposite inlet and outlet ends, the inlet end is in communication with the containing cavity, and the outlet end is exposed to the containing cavity, and a cooling piece arranged at the outer periphery of the trapping assembly for cooling the trapping assembly.

[0007] In one embodiment, the aerosol trapping device further comprises a suction piece, the collection piece is provided with a flow inlet in communication with the containing cavity for passing in aerosols, the suction piece is in communication with the outlet end for sucking out the gas, and the inlet end is arranged in the containing cavity and away from the flow inlet.

[0008] In one embodiment, the flow tube is at least partially arranged along the inner wall of the containing cavity.

[0009] In one embodiment, the part of the flow tube in the containing cavity is curvedly extended.

[0010] In one embodiment, the part of the flow tube in the containing cavity is helically extended.

[0011] In one embodiment, the aerosol trapping device comprises a plurality of trapping assemblies connected in sequence, each of the trapping assemblies is arranged in a cooling member, and the trapping assemblies are connected in sequence through the outlet end of the flow pipe and the accommodating cavity of the collecting member.

[0012] In one embodiment, the cooling member comprises a body and a cover, the body is detachably connected with the cover, and the body and the cover enclose a cooling cavity, and the trapping assembly is at least partially arranged in the cooling cavity.

[0013] In one embodiment, a gap is formed between the trapping assembly and the body, and the gap is filled with a cooling medium; and / or, a thermal insulation layer is coated on the outer circumferential surface of the body.

[0014] In one embodiment, the pitch p of the flow pipe and the height h of the accommodating cavity satisfy: 0.1≤p / h≤0.34; and / or, the pitch p of the flow pipe satisfies: 2cm≤p≤5cm; and / or, the height h of the accommodating cavity satisfies: 15cm≤h≤20cm.

[0015] In one embodiment, the cross-sectional area S1 of the accommodating cavity and the cross-sectional area S2 of the flow pipe satisfy: 0.02≤S2 / S1≤0.16.

[0016] In the embodiments of the present application, the aerosol trapping device comprises a trapping assembly and a cooling member, the trapping assembly comprises a collecting member and a flow pipe, the collecting member is provided with an accommodating cavity for passing in aerosol, and the flow pipe is at least partially arranged in the accommodating cavity, the flow pipe has opposite inlet and outlet ends, the inlet end is connected with the accommodating cavity, and the outlet end is exposed to the cavity wall of the accommodating cavity, and the cooling member is arranged on the outer periphery of the trapping assembly to cool the trapping assembly. In this way, after the aerosol enters the accommodating cavity of the collecting member, the aerosol is condensed for the first time, part of the substances in the gaseous aerosol are condensed into liquid state and remain in the accommodating cavity of the collecting member, the remaining substances in the gaseous aerosol flow into the flow pipe along with the airflow, and the aerosol continues to condense in the flow pipe when flowing out of the flow pipe, so that the path of the aerosol condensation is increased to condense as many substances as possible in the gaseous aerosol into liquid state, the aerosol trapping efficiency is improved, and the trapping loss is reduced.

[0017] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, taken in conjunction with the following drawings in which:

[0019] Figure 1is a partial schematic view of an aerosol trapping device according to an embodiment of the present application;

[0020] Figure 2 is a partial structural schematic view of an aerosol trapping device according to an embodiment of the present application;

[0021] Figure 3 is a cross-sectional view along Figure 2 line A-A in FIG. 1 according to an embodiment of the present application;

[0022] Figure 4 is a cross-sectional view along Figure 2 line B-B in FIG. 1 according to an embodiment of the present application;

[0023] Figure 5 is a structural schematic view of a cooling member according to an embodiment of the present application.

[0024] Reference Signs:

[0025] 1: trapping assembly; 11: collection member; 111: accommodation cavity; 112: flow inlet; 12: flow-through pipe; 121: inlet end; 122: outlet end;

[0026] 2: cooling member; 21: body; 22: cover; 23: cooling cavity; 24: temperature insulation layer;

[0027] 3: gap;

[0028] p: pitch of flow-through pipe; h: height of accommodation cavity; d1: inner diameter of accommodation cavity; d2: inner diameter of flow-through pipe. DETAILED DESCRIPTION

[0029] Embodiments of the present application will be described in detail below with reference to the drawings, in which the same or similar components have the same or similar reference numbers throughout the drawings and a repeated explanation will be omitted. Embodiments described below are examples for explaining the present application and are not intended to limit the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative work fall within the scope of the present application.

[0030] The terms "first", "second" in the specification and claims of the present application can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally means that the front and rear associated objects are in an "or" relationship.

[0031] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] In the description of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] Before explaining the aerosol trapping device provided by the embodiments of the present application, the application scenario of the aerosol trapping device provided by the embodiments of the present application will be described in detail:

[0034] Electronic atomization device is more and more loved by consumers because of its weak smell, less impact on people around, multiple flavors to meet the preferences of different consumers, and less impact on the health of the user. The electronic atomization device specifically heats and atomizes an aerosol substrate including multiple components into a gaseous aerosol for consumption by a consumer.

[0035] In the related art, the specific components of the gaseous aerosol are usually analyzed to analyze the aroma substances in the gaseous aerosol or to evaluate the impact of the aerosol on health. In order to obtain the specific components of the gaseous aerosol, the gaseous aerosol is usually collected using a Cambridge filter, and then extracted using an organic solvent (DMSO (Dimethyl sulfoxide) or ethanol, etc.) oscillation, and the extract is analyzed using liquid chromatography. However, this method has limited aerosol collection efficiency, especially for flavor components, which has a high loss during the collection process. This results in a great difficulty in analyzing the components of the aerosol, and the components and aroma substances in the aerosol cannot be accurately and completely collected and analyzed.

[0036] Therefore, the embodiments of the present application provide an aerosol trapping device, which will be described in detail below in combination with the drawings through specific embodiments and application scenarios of the aerosol trapping device provided by the embodiments of the present application.

[0037] Please refer to Figure 1 , Figure 2 and Figure 3 , according to some embodiments of the present application, the aerosol trapping device comprises a trapping assembly 1 and a cooling member 2, the trapping assembly 1 comprises a collection member 11 and a flow-through pipe 12, the collection member 11 is provided with a containing cavity 111 for passing in aerosol; the flow-through pipe 12 is at least partially arranged in the containing cavity 111, the flow-through pipe 12 has opposite inlet end 121 and outlet end 122, the inlet end 121 is in communication with the containing cavity 111, and the outlet end 122 is exposed to the cavity wall of the containing cavity 111; the cooling member 2 is arranged on the outer periphery of the trapping assembly 1 for cooling the trapping assembly 1.

[0038] In the embodiments of the present application, the flow-through pipe 12 is at least partially arranged in the containing cavity 111, the flow-through pipe 12 has opposite inlet end 121 and outlet end 122, the inlet end 121 is in communication with the containing cavity 111, and the outlet end 122 is exposed to the containing cavity 111, and the cooling member 2 is arranged on the outer periphery of the trapping assembly 1 for cooling the trapping assembly 1. In this way, after the aerosol enters the containing cavity 111 of the collection member 11, it is condensed for the first time, and part of the substances in the gaseous aerosol are condensed into liquid and remain in the containing cavity 111 of the collection member 11; the remaining substances in the gaseous aerosol flow into the flow-through pipe 12 along with the airflow, and the aerosol continues to condense in the flow-through pipe 12 when flowing out of the flow-through pipe 12, thereby increasing the condensation path of the aerosol to condense as much as possible the condensable substances in the gaseous aerosol into liquid and collect them, thereby improving the trapping efficiency of the aerosol and reducing the trapping loss.

[0039] It should be explained that the flow-through pipe 12 is at least partially arranged in the containing cavity 111, the inlet end 121 of the flow-through pipe 12 is in communication with the containing cavity 111, and the outlet end 122 is exposed to the containing cavity 111, so that the gaseous aerosol that has not been condensed in the containing cavity 111 flows into the flow-through pipe 12 along the inlet end 121 and is further condensed in the flow-through pipe 12, and then the remaining gas flows out of the outlet end 122, in other words, the outlet end 122 is not only the outlet of the flow-through pipe 12, but also the outlet of the containing cavity 111.

[0040] It can be understood that the cooling member 2 is arranged on the outer periphery of the trapping assembly 1 to cool the trapping assembly 1, that is, to cool the trapping assembly 1, which can be to cool the trapping assembly 1 itself or to cool the environment around the trapping assembly 1 to cool the inside of the trapping assembly 1.

[0041] Specifically, the cooling member 2 comprises at least one of a cooling tower, a condenser, a cooling coil, a refrigeration machine, a liquid nitrogen cooling device, etc., which can be selected by those skilled in the art according to actual needs, and the present application does not limit this.

[0042] It can be understood that condensation is the condensation of gas or liquid when it is cooled, such as water vapor becoming water when it is cooled, and water becoming ice when it is cooled. The lower the temperature, the faster the condensation speed, and the better the effect. In this application, the electronic atomization device heats and atomizes the aerosol substrate to form a gaseous aerosol, and the condensable substance in the gaseous aerosol is cooled by the cooling member in the aerosol trapping device, thereby condensing into a liquid and remaining in the accommodation cavity 111 or the flow-through pipe 12.

[0043] Please refer to Figure 2 and Figure 3 In an embodiment of the present application, the aerosol trapping device further comprises a suction member (not shown in the figure), and the collection member 11 is provided with a flow inlet 112 in communication with the accommodation cavity 111 for passing in the aerosol, and the suction member is in communication with the outlet end 122 for sucking out the gas.

[0044] In the embodiment of the present application, the accommodation cavity 111 of the collection member 11 is in communication with the flow inlet 112, so that the aerosol can flow into the accommodation cavity 111 from the flow inlet 112, and after two condensations in the accommodation cavity 111 and the flow-through pipe 12, the remaining gas is sucked out from the outlet end 122; the suction member sucks, so that the aerosol and the gas flow from the flow inlet 112 to the outlet end 122, and in this process, part of the substance in the gaseous aerosol is cooled by the cooling member to condense into a liquid and remain in the accommodation cavity 111 or the flow-through pipe 12, and the remaining gas is sucked out by the suction member, thereby improving the efficiency of aerosol trapping.

[0045] It needs to be explained that the suction member is in communication with the outlet end 122, and further in communication with the accommodation cavity 111 through the flow-through pipe 12, so that when the suction member works, it can suck the gas in the accommodation cavity 111 outwards.

[0046] Specifically, the suction member includes at least one of an air suction pump, a smoke extractor, a fan, an exhaust fan, etc., which can be selected by those skilled in the art according to the needs, and the present application does not limit this.

[0047] It can be understood that in actual aerosol trapping, the flow inlet 112 can be in communication with the suction port of one or more electronic atomization devices, and the outlet end 122 is in communication with the suction member; in this way, when the suction member works, the gaseous aerosol generated by the electronic atomization device and the air are sucked into the accommodation cavity 111 of the collection member 11 to condense for the first time, and the condensable substance in the gaseous aerosol is condensed into a liquid and remains in the accommodation cavity; the remaining substance in the gaseous aerosol is sucked into the flow-through pipe 12 along with the air to condense for the second time, and the remaining condensable substance in the gaseous aerosol is condensed into a liquid and remains in the flow-through pipe; the air is sucked out by the suction member.

[0048] Please refer to Figure 2and Figure 3 In an embodiment of the present application, the inlet end 121 is arranged in the accommodating cavity 111 and away from the flow inlet 112.

[0049] In the embodiment of the present application, by arranging the inlet end 121 in the accommodating cavity 111 and away from the flow inlet 112, the aerosol can be prevented from being sucked into the flow pipe 12 by the suction member as soon as it flows into the accommodating cavity 111, thereby improving the aerosol trapping efficiency.

[0050] In a specific application, the concentration of the aerosol in the gas flowing into the accommodating cavity 111 from the flow inlet 112 is relatively high, and at this time, part of the substances in the aerosol are condensed in the accommodating cavity 111; and the remaining condensable substances in the aerosol that have not been condensed are sucked into the flow pipe 12 with the air, and are subjected to a second condensation in the flow pipe 12, so as to improve the aerosol trapping efficiency and reduce the trapping loss.

[0051] It should be explained that the inlet end 121 arranged in the accommodating cavity 111 and away from the flow inlet 112 can be that the flow inlet 112 is arranged at the top of the cavity, and the inlet end 121 is arranged at the bottom of the cavity, so as to facilitate the connection of the flow inlet 112 with an external device to pass the aerosol into the collecting member 11; or the flow inlet 112 can be arranged at the bottom of the cavity, and the inlet end 121 can be arranged at the top of the cavity; or the flow inlet 112 and the inlet end 121 can be arranged at opposite sides of the accommodating cavity 111 in the circumferential direction, and the like; the skilled in the art can arrange them according to actual needs, and the present application does not limit them.

[0052] It should be explained that the inlet end 121 arranged in the accommodating cavity 111 and away from the flow inlet 112 can be that the flow inlet 112 is arranged at the top of the cavity, and the inlet end 121 is arranged at the bottom of the cavity, so as to facilitate the connection of the flow inlet 112 with an external device to pass the aerosol into the collecting member 11; or the flow inlet 112 can be arranged at the bottom of the cavity, and the inlet end 121 can be arranged at the top of the cavity; or the flow inlet 112 and the inlet end 121 can be arranged at opposite sides of the accommodating cavity 111 in the circumferential direction, and the like; the skilled in the art can arrange them according to actual needs, and the present application does not limit them. Figure 2 and Figure 3 In an embodiment of the present application, the flow pipe 12 is arranged at least partially along the inner wall of the accommodating cavity 111.

[0053] In the embodiment of the present application, by arranging the flow pipe 12 at least partially along the inner wall of the accommodating cavity 111, the flow length of the flow pipe 12 can be increased, so that the aerosol flowing into the flow pipe 12 has more time and distance for condensation, thereby improving the trapping efficiency of the aerosol trapping device and reducing the trapping loss.

[0054] In a specific application, the flow pipe 12 arranged along the inner wall of the accommodating cavity 111 can extend along the height direction of the accommodating cavity 111 and reach the bottom of the accommodating cavity 111, such as forming an "L-shaped", "S-shaped" or spiral descending path, and the like; or the flow pipe 12 can be arranged along the circumferential direction of the accommodating cavity 111 to form a "spiral-shaped" path; or other shapes that can increase the condensation path of the aerosol; the skilled in the art can arrange them according to actual needs, and the present application does not limit them.

[0055] It needs to be explained that the flow pipe 12 is arranged along the inner wall of the containing cavity 111, which can be arranged in close contact with the inner wall of the containing cavity 111, or arranged at a certain distance from the inner wall of the containing cavity 111, or any arrangement that can increase the flow length of the flow pipe 12. Those skilled in the art can arrange according to the needs, and the present application does not limit this.

[0056] Please refer to Figure 2 and Figure 3 In an embodiment of the present application, the part of the flow pipe 12 located in the containing cavity 111 is curvedly extended.

[0057] In the embodiment of the present application, by arranging the part of the flow pipe 12 located in the containing cavity 111 to be curvedly extended, the condensation path of the aerosol in the flow pipe 12 is improved, so that the condensable substances in the aerosol have more time and path to be condensed, to improve the aerosol condensation efficiency; reduce the substances in the aerosol that have not been condensed yet with the air being sucked out by the suction member, reduce the aerosol capture loss.

[0058] In specific applications, the flow pipe 12 is at least partially curvedly extended, which can be in the shape of "L", "S", "spiral" or any shape that can increase the length of the flow pipe 12. Those skilled in the art can arrange according to the actual needs, and the present application does not limit this.

[0059] Please refer to Figure 2 、 Figure 3 and Figure 4 In an embodiment of the present application, the part of the flow pipe 12 located in the containing cavity 111 is spirally extended.

[0060] In the embodiment of the present application, by arranging the part of the flow pipe 12 located in the containing cavity 111 to be spirally extended, the condensation path of the aerosol in the flow pipe 12 is improved, so that the condensable substances in the aerosol have more time and path to be condensed, to improve the aerosol condensation efficiency; reduce the substances in the aerosol that have not been condensed yet with the air being sucked out by the suction member, reduce the aerosol capture loss.

[0061] It needs to be explained that in specific manufacturing and use, the collection member 11 and the flow pipe 12 are usually transparent materials such as glass, which on the one hand facilitates the observation of the condensation condition by the workers, and on the other hand is low in cost and easy to process. Based on this, in order to facilitate processing, the flow pipe 12 is arranged in a spiral shape, and the spiral flow pipe 12 can be in close contact with the inner wall of the containing cavity 111 and spirally extend from the cavity bottom to the cavity top, thereby increasing the flow length of the flow pipe 12.

[0062] Please refer to Figure 4In an embodiment of the present application, the pitch p of the flow pipe 12 and the height h of the accommodating cavity 111 satisfy: 0.1≤p / h≤0.34.

[0063] In the embodiment of the present application, by setting the reasonable range of the ratio p / h between the pitch p of the flow pipe 12 and the height h of the accommodating cavity 111, the smooth processing of the flow pipe 12 can be ensured, and at the same time, the overall length of the flow pipe 12 is increased, the condensation time of the aerosol in the flow pipe 12 is increased, and thus the condensation efficiency of the aerosol is improved.

[0064] In a specific application, the ratio p / h between the pitch p of the flow pipe 12 and the height h of the accommodating cavity 111 can be set to: 0.10, 0.12, 0.14, 0.16, 0.18, 0.20, 0.22, 0.24, 0.26, 0.28, 0.30, 0.32, 0.34, or any value or a range between any two values.

[0065] It should be explained that when the ratio p / h between the pitch p of the flow pipe 12 and the height h of the accommodating cavity 111 is less than 0.1, on the one hand, the small helix angle may not ensure the smooth processing of the flow pipe 12; on the other hand, the small cross-sectional area of the flow pipe 12 may reduce the flow cross section of the flow pipe 12 and reduce the condensation efficiency; when the ratio p / h between the pitch p of the flow pipe 12 and the height h of the accommodating cavity 111 is greater than 0.34, the total length of the flow pipe 12 is too small, the condensation path of the aerosol is too short, and the aerosol that has not been condensed may be extracted, causing capture loss.

[0066] As can be understood, Figure 4 The pitch p of the flow pipe 12 refers to the distance between the adjacent two coils, which generally refers to the axial distance between the two points corresponding to the adjacent two teeth on the pitch diameter line in the thread pitch.

[0067] Please refer to Figure 4 In an embodiment of the present application, the pitch p of the flow pipe 12 satisfies: 2cm≤p≤5cm.

[0068] In the embodiment of the present application, by setting the pitch p of the flow pipe 12 within a reasonable range, the smooth processing of the flow pipe 12 is ensured, and at the same time, the overall length of the flow pipe 12 is increased, the condensation time of the aerosol in the flow pipe 12 is increased, and thus the condensation efficiency of the aerosol is improved.

[0069] In a specific application, the pitch p of the flow pipe 12 can be set to: 2cm, 2.4cm, 2.5cm, 2.8cm, 3cm, 3.4cm, 3.5cm, 3.8cm, 4cm, 4.4cm, 4.5cm, 4.8cm, 5cm, or any value or a range between any two values.

[0070] It needs to be explained that when the pitch p of the flow pipe 12 is less than 2 cm, the processing of the flow pipe 12 is difficult due to the processing process or material; and when the pitch p of the flow pipe 12 is greater than 5 cm, the total length of the flow pipe 12 is too small, and the condensation path of the aerosol is too short, which may cause the aerosol that has not been condensed to be extracted, resulting in capture loss.

[0071] Please refer to Figure 4 In an embodiment of the present application, the height h of the containing cavity 111 satisfies: 15 cm≤h≤20 cm.

[0072] In the embodiment of the present application, by setting the height h of the containing cavity 111 within a reasonable range, the condensation of the aerosol in the containing cavity 111 is satisfied, and the condensed aerosol is retained, and there is enough space to accommodate the flow pipe 12.

[0073] In specific applications, the height h of the containing cavity 111 can be set to: 15 cm, 15.5 cm, 16 cm, 16.5 cm, 17 cm, 17.5 cm, 18 cm, 18.5 cm, 19 cm, 19.5 cm, 19.9 cm, 20 cm, etc. Any numerical value or range between any two numerical values.

[0074] It needs to be explained that when the height h of the containing cavity 111 is less than 15 cm, the space of the containing cavity 111 is too small, which is not convenient for accommodating the longer flow pipe 12; and when the height h of the containing cavity 111 is greater than 20 cm, the space of the containing cavity 111 is too large, and too much aerosol is retained in the containing cavity 111, which is not conducive to the condensation of the aerosol.

[0075] In an embodiment of the present application, the aerosol capture device includes a plurality of capture assemblies 1 that are sequentially communicated, each capture assembly 1 is arranged in the cooling member 2, and the capture assemblies 1 are communicated through the outlet end 122 of the flow pipe 12 and the containing cavity 111 of the collection member 11.

[0076] In the embodiment of the present application, the capture assembly 1 is provided with a plurality of capture assemblies 1 that are sequentially communicated, wherein the outlet end 122 of the flow pipe 12 of the previous capture assembly 1 is communicated with the flow inlet 112 of the next capture assembly 1, thereby forming a series communication channel of the plurality of capture assemblies 1, and further condensing the aerosol in multiple stages to further improve the capture efficiency of the aerosol and reduce the capture loss.

[0077] It needs to be explained that the flow inlet 112 of the former trapping assembly 1 is communicated with the suction port of the electronic atomization device, the outlet end 122 of the former trapping assembly 1 can be communicated with the flow inlet 112 of the latter trapping assembly 1 through a rubber hose or the like, and the outlet end 122 of the latter trapping assembly 1 is communicated with the suction member, so as to form an aerosol flow condensation path, and multi-stage condensation is sequentially performed in the accommodation cavity 111 of the former trapping assembly 1, the flow pipe 12, the accommodation cavity 111 of the latter trapping assembly 1 and the flow pipe 12.

[0078] Please refer to Figure 5 In an embodiment of the present application, the cooling member 2 comprises a body 21 and a cover 22, the body 21 and the cover 22 are detachably connected, the body 21 and the cover 22 enclose a cooling cavity 23, and the trapping assembly 1 is at least partially arranged in the cooling cavity 23.

[0079] In an embodiment of the present application, the cooling member 2 comprises a body 21 and a cover 22, the body 21 and the cover 22 are detachably connected, the body 21 and the cover 22 enclose a cooling cavity 23, and the cooling medium is arranged in the cooling cavity 23, and the trapping assembly 1 is at least partially arranged in the cooling cavity 23, so as to facilitate the placement of the trapping assembly 1 in the cooling member 2 for cooling, and the trapping assembly 1 can be fully covered to improve the cooling efficiency.

[0080] In specific applications, the body 21 and the cover 22 can be detachably connected, which can be at least one of snap connection, threaded connection, bolt connection, pin connection, key connection and the like, and those skilled in the art can set it according to the needs, which is not limited in the present application.

[0081] It can be understood that the cooling member 2 can have a cooling function itself, for example, a cooling tower, or can be a container itself, the cooling medium is placed in the cooling cavity 23 to cool the trapping assembly 1, and other cooling devices capable of cooling the trapping assembly 1, and those skilled in the art can set it according to the actual needs, which is not limited in the present application.

[0082] Please refer to Figure 3 and Figure 4 In an embodiment of the present application, a gap 3 is formed between the trapping assembly 1 and the body 21, and the gap 3 is filled with a cooling medium.

[0083] In an embodiment of the present application, a gap 3 is formed between the trapping assembly 1 and the body 21, and the gap 3 is filled with a cooling medium, so as to reduce the cost of the cooling member 2 itself while ensuring the cooling efficiency.

[0084] In specific applications, the cooling medium comprises at least one of liquid nitrogen, dry ice, carbon hydrogen refrigerant, liquid oxygen, ammonia and the like, and those skilled in the art can select it according to the needs, which is not limited in the present application.

[0085] Please refer to Figure 4 In an embodiment of the present application, the outer circumferential surface of the body 21 is coated with a thermal insulation layer 24.

[0086] In an embodiment of the present application, by coating the outer circumferential surface of the body 21 with the thermal insulation layer 24, heat exchange between the cooling member 2 and the external environment can be reduced, thereby improving the cooling efficiency of the trapping assembly 1.

[0087] In specific applications, the thermal insulation layer 24 can be at least one of pearl wool, aerogel felt, vacuum board, glass fiber, asbestos, rock wool, silicate, etc., which can be selected by those skilled in the art according to actual needs, and the present application does not limit this.

[0088] In an embodiment of the present application, the thermal insulation layer 24 is integrally formed with the body 21, thereby improving processing efficiency and reducing cost.

[0089] In an embodiment of the present application, the cross-sectional area S1 of the containing cavity 111 and the cross-sectional area S2 of the flow-through pipe 12 satisfy: 0.02≤S2 / S1≤0.16.

[0090] In an embodiment of the present application, by setting the ratio S2 / S1 between the cross-sectional area S1 of the containing cavity 111 and the cross-sectional area S2 of the flow-through pipe 12 within a reasonable range, the aerosol trapping efficiency is ensured while reducing aerosol trapping loss.

[0091] In specific applications, the ratio S2 / S1 between the cross-sectional area S1 of the containing cavity 111 and the cross-sectional area S2 of the flow-through pipe 12 can be set to: 0.02, 0.04, 0.06, 0.08, 0.10, 0.12, 0.14, 0.15, 0.16, etc. Any numerical value or range between any two numerical values.

[0092] It should be explained that when the ratio S2 / S1 between the cross-sectional area S1 of the containing cavity 111 and the cross-sectional area S2 of the flow-through pipe 12 is less than 0.02, the cross-sectional area S2 of the flow-through pipe 12 is too small, which will cause the aerosol flow-through efficiency to be too low and the condensation speed in the flow-through pipe 12 to be too slow; and when the ratio S2 / S1 between the cross-sectional area S1 of the containing cavity 111 and the cross-sectional area S2 of the flow-through pipe 12 is greater than 0.16, the cross-sectional area S2 of the flow-through pipe 12 is too large, which will cause too much aerosol that has not been condensed in the containing cavity 111 to enter the flow-through pipe 12, resulting in incomplete condensation of the remaining aerosol and the aerosol being sucked out with the gas by the suction member, causing trapping loss.

[0093] In a specific application, the cross section of the accommodating cavity 111 can be a regular polygon or a circle. When the cross section of the accommodating cavity 111 is a regular polygon, S1=(na) / (4tan(π / n)), where a is the side length of the regular polygon, n is the number of sides of the polygon, and π is the ratio of a circle. When the cross section of the accommodating cavity 111 is a circle, S1=πd / 4, where d is the diameter of the circle, and π is the ratio of a circle. Similarly, the cross section of the flow pipe 12 is calculated in the same way. 2 / 4, where d is the diameter of the circle, and π is the ratio of a circle. Similarly, the cross section of the flow pipe 12 is calculated in the same way.

[0094] It should be explained that the cross section of the accommodating cavity 111 and the flow pipe 12 specifically refers to the cross section of the gas aerosol, and the corresponding pipe wall or cavity wall is not included.

[0095] Please refer to Figure 4 In an embodiment of the present application, the cross section of the accommodating cavity 111 is a circle, and the inner diameter d1 of the accommodating cavity 111 satisfies 5cm≤d1≤7cm.

[0096] In the embodiment of the present application, by setting the inner diameter d1 of the accommodating cavity 111 within a reasonable range, the aerosol trapping efficiency is ensured while reducing the aerosol trapping loss.

[0097] In a specific application, the inner diameter d1 of the accommodating cavity 111 can be set to 5cm, 5.2cm, 5.4cm, 5.6cm, 5.8cm, 6cm, 6.2cm, 6.4cm, 6.6cm, 6.8cm, 7cm, or any value or range between any two values.

[0098] It should be explained that when the inner diameter d1 of the accommodating cavity 111 is less than 5cm, the space of the accommodating cavity 111 is too small to accommodate a longer flow pipe 12. When the inner diameter d1 of the accommodating cavity 111 is greater than 7cm, the space of the accommodating cavity 111 is too large, and too much aerosol is retained in the accommodating cavity 111, which is not conducive to the condensation of the aerosol.

[0099] Please refer to Figure 4 In an embodiment of the present application, the cross section of the flow pipe 12 is a circle, and the inner diameter d2 of the flow pipe 12 satisfies 1cm≤d2≤2cm.

[0100] In the embodiment of the present application, by setting the inner diameter d2 of the flow pipe 12 within a reasonable range, the aerosol trapping efficiency is ensured while reducing the aerosol trapping loss.

[0101] In a specific application, the inner diameter d2 of the flow pipe 12 can be set to 1cm, 1.2cm, 1.4cm, 1.6cm, 1.8cm, 2cm, or any value or range between any two values.

[0102] It needs to be explained that when the inner diameter d2 of the flow pipe 12 is less than 1 cm, the cross-sectional area S2 of the flow pipe 12 is too small, which makes the aerosol flow efficiency too low and the condensation speed in the flow pipe 12 too slow; and when the inner diameter d2 of the flow pipe 12 is greater than 2 cm, the cross-sectional area S2 of the flow pipe 12 is too large, which makes too much condensable substance in the aerosol that has not been condensed in the containing cavity 111 enter the flow pipe 12, causing the remaining condensable substance in the aerosol to not be completely condensed and be extracted with the gas by the suction member, resulting in a loss of capture.

[0103] The actual use of the aerosol capture device of the present application is briefly described as follows:

[0104] The capture assembly 1 is placed in the cooling cavity 23 of the cooling member 2, the inlet end 112 is communicated with the suction port of the electronic atomization device through a pipeline, the outlet end 122 is communicated with the suction member, the cooling medium (such as dry ice or liquid nitrogen) is placed in the gap 3, when the temperature reaches the preset temperature, the suction member is started to suck and form a negative pressure, so that the electronic atomization device starts to work to heat and atomize the aerosol substrate into gaseous aerosol, the gaseous aerosol enters the containing cavity 111 through the inlet end 112, the condensable substance in the gaseous aerosol is cooled and condensed by the cooling member 2 for the first time, and the condensed liquid substance is left in the containing cavity 111; the gaseous condensable substance in the containing cavity 111 that has not been condensed is sucked into the flow pipe 12 from the inlet end 121 along with the air, the remaining condensable substance is condensed in the flow pipe 12 for the second time, and the condensed liquid condensate is left in the flow pipe 12 or the containing cavity 111, so that the components in the aerosol can be fully collected through two condensations, the efficiency of aerosol capture is improved, and the loss during aerosol capture is reduced.

[0105] In a specific application, after the aerosol collection is completed, the electronic atomization device and the suction member are removed, and ethanol solution is used to flush the capture assembly 1 from the outlet end 122, and the flushed solution is poured out from the inlet end 112 into a bottle, and after repeated flushing for multiple times, the multiple times of flushing liquid is poured into a volumetric flask for constant volume, and the constant volume solution is placed into a liquid chromatograph for component analysis.

[0106] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0107] While the embodiments of the application have been shown and described, it is to be understood that the embodiments can be varied, modified, substituted and changed by those skilled in the art without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. An aerosol capturing device, characterized by, The aerosol capturing device comprises: a capturing assembly (1) comprising a collecting piece (11) and a flow pipe (12), the collecting piece (11) is provided with a containing cavity (111) for passing in aerosol; the flow pipe (12) is at least partially arranged in the containing cavity (111), the flow pipe (12) has opposite inlet end (121) and outlet end (122), the inlet end (121) is communicated with the containing cavity (111), and the outlet end (122) is exposed to the containing cavity (111); a cooling piece (2) arranged at the outer periphery of the capturing assembly (1) for cooling the capturing assembly (1).

2. The aerosol trapping device of claim 1, wherein, The aerosol capturing device further comprises a suction piece, the collecting piece (11) is provided with a flow inlet (112) communicated with the containing cavity (111) for passing in aerosol, and the suction piece is communicated with the outlet end (122) for sucking out gas. The inlet end (121) is arranged in the containing cavity (111) and is arranged away from the flow inlet (112).

3. The aerosol trapping device of claim 1, wherein, The flow pipe (12) is at least partially arranged along the inner wall of the containing cavity (111).

4. The aerosol trapping device of claim 1, wherein, The part of the flow pipe (12) in the containing cavity (111) is curvedly extended.

5. The aerosol trapping device of claim 4, wherein, The part of the flow pipe (12) in the containing cavity (111) is helically extended.

6. The aerosol trapping device according to any one of claims 1 to 5, wherein The aerosol capturing device comprises a plurality of capturing assemblies (1) communicated in sequence, each of the capturing assemblies (1) is arranged in the cooling piece (2), and the capturing assemblies (1) are communicated through the outlet end (122) of the flow pipe (12) and the containing cavity (111) of the collecting piece (11).

7. The aerosol trapping device according to any one of claims 1 to 5, wherein The cooling piece (2) comprises a body (21) and a cover (22), the body (21) and the cover (22) are detachably connected, the body (21) and the cover (22) enclose a cooling cavity (23), and the capturing assembly (1) is at least partially arranged in the cooling cavity (23).

8. The aerosol trapping device of claim 7, wherein, A gap (3) is formed between the capturing assembly (1) and the body (21), and the gap (3) is filled with cooling medium; And / or, the outer periphery of the body (21) is coated with a temperature insulation layer (24).

9. The aerosol trapping device of claim 5, wherein, The pitch p of the flow pipe (12) and the height h of the containing cavity (111) satisfy: 0.1≤p / h≤0.34; And / or, the pitch p of the flow pipe (12) satisfies: 2cm≤p≤5cm; And / or, the height h of the containing cavity (111) satisfies: 15cm≤h≤20cm.

10. The aerosol trapping device of claim 1, wherein, The cross-sectional area S1 of the containing cavity (111) and the cross-sectional area S2 of the flow pipe (12) satisfy: 0.02≤S2 / S1≤0.16.

Images