Particle separation device, gas particle concentration detection equipment and aerosol sampling device

Abstract

The present invention discloses a particle separation device, gas particle concentration detection equipment, and an aerosol sampling device. The particle separation device includes a first separator, wherein a first air inlet of the first separator is connected to a first accommodating chamber, and a first deflection portion is located between the first air inlet and the first accommodating chamber; a first airflow generating device is configured to generate a first airflow and connect to the first accommodating chamber, allowing a first target gas (including first and second particles) to enter the first accommodating chamber through the first air inlet, with the first particles being larger than the second particles; and a second airflow generating device is configured to generate a second airflow and connect to the first deflection portion through the second accommodating chamber, thereby drawing the second particles entering the first accommodating chamber into the second accommodating chamber while preventing the first particles from being drawn into the second accommodating chamber. This invention avoids the particle breakage and rebound problems that may occur in traditional impactors.

Description

Technical Field

[0001] The present invention belongs to the technical field of particle separation, and in particular relates to a particle separation device, gas particle concentration detection equipment and an aerosol sampling device. Background Art

[0002] Aerosols act as condensation nuclei to form cloud droplets under supersaturated water vapor conditions. Aerosols interact with cloud droplets due to their complex chemical composition distribution and particle size spectrum, and have a profound impact on global radiative forcing and the multiphase circulation of pollutants. Our understanding of these processes is limited by observational means and technical solutions with uncertainties. Due to differences in the microphysical and chemical properties of aerosols, a portion of aerosols can form cloud droplets, which are defined as activated particles; while the remaining aerosols that cannot form cloud droplets are defined as interstitial particles. Interstitial particles are the most uncertain part of aerosols in the cloud process. In related existing technologies, aerosols act as condensation nuclei under supersaturated water vapor conditions, promoting the formation of cloud droplets. Aerosols interact with cloud droplets due to their complex chemical composition distribution and particle size spectrum, which in turn has a significant impact on global radiative forcing and the multiphase circulation of pollutants.

[0003] Coarse modes (2μm) and most accumulation modes (0.05μm-2μm) are swept by cloud droplets, while interstitial particles that cannot enter cloud droplets are mostly distributed in fine modes with particle sizes ranging from tens to hundreds of nanometers. However, current methods for collecting interstitial particles are generally crude. CN113607612 uses a total particulate impactor to measure cloud droplets, while simultaneously measuring unactivated interstitial particles using a PM2.5 impactor. This segmentation method not only fails to meet particle size resolution requirements, but also faces the problems of droplet breakup and small droplets entering the air inlet. The biggest problem with impactors is particle breakup and rebound, which is particularly serious during cloud and fog events and high humidity weather.

[0004] Currently, there is no accurate method for separating interstitial aerosols from cloud droplets (unactivated particles before activation). Summary of the Invention

[0005] Based on the technical problems existing in the prior art, the present invention is to overcome the problems existing in the related technology. The present invention provides a particle separation device, a gas particle concentration detection device and an aerosol sampling device.

[0006] According to a first aspect of the technical solution of the present invention, a particle separation device is provided, which includes a first separator, the first separator including a first accommodating chamber, a first air inlet, a second accommodating chamber, a first turning portion, a first airflow generating device and a second airflow generating device, the first air inlet is connected to the first accommodating chamber, the first turning portion is located between the first air inlet and the first accommodating chamber, the first airflow generating device is used to generate a first airflow, the first airflow generating device is connected to the first accommodating chamber, the first airflow is used to allow a first target gas to enter the first accommodating chamber through the first air inlet, the first target gas includes first particles and second particles, and the size of the first particles is larger than the size of the second particles; the second airflow generating device is used to generate a second airflow, the second airflow generating device is connected to the first turning portion through the second accommodating chamber, the second airflow can suck the second particles entering the first accommodating chamber from the first turning portion into the second accommodating chamber, and the second airflow cannot suck the first particles entering the first accommodating chamber into the second accommodating chamber.

[0007] Furthermore, the second particulate matter includes activated particles and gap particles, and the particulate matter separation device further includes a first air outlet, and the first airflow generating device is connected to the second containing chamber through the first air outlet, and the first airflow device is used to suck out the second particulate matter in the second containing chamber, and the second particulate matter enters the target device through the first air outlet; a growth environment device is provided between the first air outlet and the target device, and the growth environment device is used to increase the size of the activated particles of the second particulate matter into target activated particles, and maintain the original size of the gap particles; the growth environment device includes a temperature regulating device and a humidity regulating device, and the temperature regulating device is used to maintain the first target gas passing through the first containing chamber at a target temperature, and the humidity regulating device is used to maintain the first target gas passing through the first containing chamber at a target humidity.

[0008] Furthermore, the growth environment device includes a temperature regulating device and a humidity regulating device. The humidity regulating device includes a third accommodating chamber, which is used to accommodate the second particles after passing through the second accommodating chamber. The third accommodating chamber has a water-retaining layer inside, which is used to maintain the humidity inside the third accommodating chamber; the temperature regulating device includes a temperature control layer, which is located outside the third accommodating chamber, and the temperature control layer is used to control the temperature inside the third accommodating chamber.

[0009] Preferably, the growth environment device further includes a fourth holding chamber and a water storage device, the fourth holding chamber is located between the third holding chamber and the second holding chamber, and the fourth holding chamber is used to hold the second particulate matter after passing through the second holding chamber; the water retention layer has a water inlet and a water outlet, the water storage device is arranged outside the fourth holding chamber, and a water circulation device is provided between the water storage device and the water retention layer, the water circulation device is used to circulate the water in the water storage device through the water inlet of the water retention layer into the water retention layer, and the water outlet of the water retention layer is used to circulate the water in the water retention layer into the water storage device.

[0010] More preferably, the target device includes a second separator, the second separator includes a fifth accommodating chamber, a second air inlet, a sixth accommodating chamber, a second turning portion, a third airflow generating device and a fourth airflow generating device, the first air inlet is connected to the fifth accommodating chamber, the second turning portion is located between the second air inlet and the fifth accommodating chamber, the third airflow generating device is used to generate a third airflow, the third airflow generating device is connected to the fifth accommodating chamber, and the third airflow is used to allow the target activated particles and the gap particles to enter the fifth accommodating chamber through the second air inlet; the fourth airflow generating device is used to generate a fourth airflow, the fourth airflow generating device is connected to the second turning portion through the sixth accommodating chamber, the fourth airflow can suck the gap particles entering the fifth accommodating chamber from the second turning portion into the sixth accommodating chamber, and the fourth airflow cannot suck the target activated particles entering the fifth accommodating chamber into the sixth accommodating chamber.

[0011] Preferably, a first drying device is provided between the third airflow generating device and the fifth accommodating chamber, the first drying device being used to dry out moisture in the third airflow; and / or a second drying device is provided between the fourth airflow generating device and the sixth accommodating chamber, the second drying device being used to dry out moisture in the fourth airflow. Preferably, the first drying device and / or the second drying device are Nafion™ aerosol drying tubes.

[0012] Furthermore, an optical particle counter is provided between the third airflow generating device and the fifth receiving chamber, and is used to measure the number concentration of target activated particles; and / or a condensation particle counter is provided between the fourth airflow generating device and the sixth receiving chamber, and is used to measure the number concentration of interstitial particles. A first collection device is provided between the third airflow generating device and the fifth receiving chamber, and is used to collect target activated particles; and / or a second collection device is provided between the fourth airflow generating device and the sixth receiving chamber, and is used to collect interstitial particles.

[0013] Preferably, the first airflow generating device and / or the second airflow generating device is a vacuum pump; the first airflow generating device includes a first float flowmeter, which is used to monitor the flow rate of the first airflow; and / or the second airflow generating device includes a second float flowmeter, which is used to monitor the flow rate of the second airflow.

[0014] According to a second aspect of the technical solution of the present invention, a gas particle concentration detection device is provided, characterized in that the gas particle concentration detection device includes the above-mentioned particle separation device.

[0015] According to a third aspect of the technical solution of the present invention, an aerosol sampling device is provided, characterized in that the aerosol sampling device includes the above-mentioned particle separation device.

[0016] Compared with the prior art, the particle separation device, gas particle concentration detection equipment, and aerosol sampling device provided by the present invention have the following beneficial effects:

[0017] In this invention, the first separator generates a countercurrent airflow at its inlet, separating larger particles (such as cloud droplets or ice crystals) from smaller particles. During this process, a first target gas containing first particles (larger particles) and second particles (smaller particles) can be introduced through the first air inlet. Due to the inertia of the large particles, they are unable to deflect with the high-speed countercurrent airflow and are therefore effectively collected in the first holding chamber. Simultaneously, the second airflow generating device draws in the smaller second particles through the second holding chamber, ensuring effective separation of the two types of particles. This separation process is accomplished without the need for physical impact, thus avoiding the particle breakage and rebound issues that can occur with traditional impactors.

[0018] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0020] Figure 1 FIG2 is a schematic diagram of a particle separation device according to an exemplary embodiment of the present invention.

[0021] Figure 2 FIG. 1 is a schematic structural diagram of a growth environment device according to an exemplary embodiment of the present invention.

[0022] Figure 3 FIG. 4 is a schematic structural diagram of a first separator according to an exemplary embodiment of the present invention.

[0023] Figure 4 FIG. 1 is a schematic diagram showing the internal structure of a first separator according to an exemplary embodiment of the present invention.

[0024] Description of reference numerals in the accompanying drawings:

[0025] 1. Second air flow generating device; 2. Second float flowmeter; 3. First separator; 4. Water circulation device; 5. First air flow generating device; 6. First float flowmeter; 7. Aerosol regulator; 8. Temperature control layer; 9. Temperature regulating device; 10. Growth environment device; 11. Water storage device; 12. Second separator; 13. First drying device; 14. Second drying device; 15. Optical particle counter; 16. Condensation particle counter; 17. First collecting device; 18. Second collecting device; 19. Third air flow generating device; 20. Third float flowmeter; 21. Fourth float flowmeter; 22. Fourth air flow generating device; 23. Water retention layer; 24. First accommodating chamber; 25. First air inlet; 26. Second accommodating chamber; 27. First turning portion; 28. First particulate matter; 29. ​​Second particulate matter; 30. First air outlet; 31. Second air outlet. DETAILED DESCRIPTION

[0026] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, like numbers in different figures represent like or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present invention, as detailed in the appended claims.

[0027] Currently, there is still a lack of effective and accurate separation methods for interstitial aerosols and cloud droplets (unactivated particles before activation). To solve the above technical problems, the present invention provides a particle separation device, comprising a first separator, the first separator comprising a first accommodating chamber, a first air inlet, a second accommodating chamber, a first turning portion, a first airflow generating device, and a second airflow generating device, wherein the first air inlet is connected to the first accommodating chamber, and the first turning portion is located between the first air inlet and the first accommodating chamber. The first airflow generating device is configured to generate a first airflow, the first airflow generating device is configured to connect to the first accommodating chamber, and the first airflow is configured to allow a first target gas to enter the first accommodating chamber through the first air inlet. The first target gas includes first particles and second particles, and the size of the first particles is larger than the size of the second particles. The second airflow generating device is configured to generate a second airflow, the second airflow generating device is configured to connect to the first turning portion through the second accommodating chamber, and the second airflow is configured to draw the second particles entering the first accommodating chamber from the first turning portion into the second accommodating chamber, but the second airflow cannot draw the first particles entering the first accommodating chamber into the second accommodating chamber.

[0028] In a preferred embodiment, the second particulate matter includes activated particles and interstitial particles, the particulate matter separation device includes a first air outlet, the first airflow generating device is connected to the second containing chamber through the first air outlet, the first airflow device is used to suck out the second particulate matter in the second containing chamber, and the second particulate matter enters the target device through the first air outlet; a growth environment device is provided between the first air outlet and the target device, the growth environment device includes a temperature regulating device for maintaining the first target gas passing through the first containing chamber at a target temperature; and a humidity regulating device for maintaining the first target gas passing through the first containing chamber at a target humidity; the growth environment device is used to increase the size of the activated particles of the second particulate matter to target activated particles, and maintain the original size of the interstitial particles.

[0029] In a preferred embodiment, the growth environment device includes a temperature regulating device and a humidity regulating device; the humidity regulating device includes a third accommodating chamber, the third accommodating chamber is used to accommodate the second particulate matter after passing through the second accommodating chamber, and the third accommodating chamber has a water-retaining layer inside, and the water-retaining layer is used to maintain the humidity in the third accommodating chamber; the temperature regulating device includes a temperature control layer, which is located outside the third accommodating chamber, and the temperature control layer is used to control the temperature in the third accommodating chamber.

[0030] In a preferred embodiment, the growth environment device includes a fourth containing chamber and a water storage device, the fourth containing chamber is located between the third containing chamber and the second containing chamber, the fourth containing chamber is used to accommodate the second particulate matter after passing through the second containing chamber, the water retention layer has a water inlet and a water outlet, the water storage device is arranged outside the fourth containing chamber, and a water circulation device is provided between the water storage device and the water retention layer, the water circulation device is used to circulate the water in the water storage device through the water inlet into the water retention layer, and the water outlet of the water retention layer is used to circulate the water in the water retention layer into the water storage device.

[0031] In a preferred embodiment, the target device includes a second separator, the second separator includes a fifth accommodating chamber and a second air inlet, the first air inlet is connected to the fifth accommodating chamber; a sixth accommodating chamber and a second turning portion, the second turning portion is located between the second air inlet and the fifth accommodating chamber; a third airflow generating device, the third airflow generating device is used to generate a third airflow, the third airflow generating device is connected to the fifth accommodating chamber, the third airflow is used to allow the target activated particles and the gap particles to enter the fifth accommodating chamber through the second air inlet; a fourth airflow generating device, the fourth airflow generating device is used to generate a fourth airflow, the fourth airflow generating device is connected to the second turning portion through the sixth accommodating chamber, the fourth airflow can suck the gap particles entering the fifth accommodating chamber from the second turning portion into the sixth accommodating chamber, and the fourth airflow cannot suck the target activated particles entering the fifth accommodating chamber into the sixth accommodating chamber.

[0032] In a preferred embodiment, there is a first drying device between the third airflow generating device and the fifth accommodating chamber, and the first drying device is used to dry the water vapor in the third airflow; and / or there is a second drying device between the fourth airflow generating device and the sixth accommodating chamber, and the second drying device is used to dry the water vapor in the fourth airflow.

[0033] In a preferred embodiment, the first drying device and / or the second drying device is a Nafion™ aerosol drying tube.

[0034] In a preferred embodiment, an optical particle counter is provided between the third airflow generating device and the fifth accommodating chamber, the optical particle counter being used to measure the number concentration of the target activated particles; and / or a condensation particle counter is provided between the fourth airflow generating device and the sixth accommodating chamber, the condensation particle counter being used to measure the number concentration of interstitial particles. The number concentration represents the number of particles per unit volume.

[0035] In a preferred embodiment, there is a first collecting device between the third airflow generating device and the fifth accommodating chamber, and the first collecting device is used to collect the target activated particles; and / or there is a second collecting device between the fourth airflow generating device and the sixth accommodating chamber, and the second collecting device is used to collect the interstitial particles.

[0036] In a preferred embodiment, the first airflow generating device and / or the second airflow generating device is a vacuum pump; the first airflow generating device includes a first float flowmeter, which is used to monitor the flow rate of the first airflow; and / or the second airflow generating device includes a second float flowmeter, which is used to monitor the flow rate of the second airflow.

[0037] According to a second aspect of the technical solution of the present invention, there is also provided a gas particulate matter concentration detection device, comprising the particle separation device described in any one of the aforementioned embodiments.

[0038] According to a third aspect of the technical solution of the present invention, an aerosol sampling device is further provided, comprising the particle separation device described in any one of the aforementioned embodiments.

[0039] The technical solution of the present invention will be further described below with reference to the accompanying drawings. Figure 1-Figure 4 As shown, the particle separation device may include a first separator 3, the first separator 3 includes a first accommodating chamber 24, a first air inlet 25, a second accommodating chamber 26, a first turning portion 27, a first air flow generating device 5 and a second air flow generating device 1, the first air inlet 25 can be connected to the first accommodating chamber 24, the first turning portion 27 is located between the first air inlet 25 and the first accommodating chamber 24, the first air flow generating device 5 is used to generate a first airflow, the first air flow generating device 5 is connected to the first accommodating chamber 24, the first airflow is used to allow the first target gas to enter the first accommodating chamber 24 through the first air inlet 25, the first target gas includes first particles 28 and second particles 29, the size of the first particles 28 is larger than the size of the second particles 29; the second airflow generating device 1 is used to generate a second airflow, the second airflow generating device 1 is connected to the first turning portion 27 through the second accommodating chamber 26, the second airflow can suck the second particles 29 entering the first accommodating chamber 24 from the first turning portion 27 into the second accommodating chamber 26, and the second airflow cannot suck the first particles 28 entering the first accommodating chamber 24 into the second accommodating chamber 26.

[0040] It is understood that the particle separation device can be a device for separating particles of different sizes in a gas, capable of effectively separating larger particles from smaller particles in the gas. In a preferred technical solution, the first particles are particles with a particle size greater than 2.5 μm, and the second particles are particles with a particle size less than 2.5 μm.

[0041] It is understandable that the first separator 3 can be a specific part inside the particle separation device, which can be used for preliminary particle separation. The first accommodating chamber 24 in the first separator 3 can be a space for accommodating the incoming target gas, which can serve as an area for separating larger particles from smaller particles, and the first accommodating chamber 24 can serve as a space for accommodating larger particles. For example, the first cavity can be: a cylindrical cavity, a square cavity, other polygonal cavities, etc. However, the present application is not limited to this, that is, those skilled in the art can adjust or set it according to specific needs.

[0042] It is understood that the first air inlet 25 can be an entrance for gas to enter the first accommodating chamber 24 and can be connected to an external air source. For example, the first air inlet 25 can be an air inlet of different diameters, an air inlet equipped with a filter, etc. However, the present application is not limited to this, and those skilled in the art can adjust or configure it according to specific needs.

[0043] It is understood that the second accommodating chamber 26 may be a cavity for receiving the second particulate matter 29. The second accommodating chamber 26 in the first separator 3 may be an area for accommodating smaller particles entering. For example, the second accommodating chamber 26 may have various shapes, such as circular or square. However, the present application is not limited thereto, and those skilled in the art may adjust or configure the second accommodating chamber 26 according to specific needs.

[0044] It is understood that the first turning portion 27 can be a structure for changing the direction of airflow and can be located between the first air inlet 25 and the first accommodating chamber 24. For example, the turning portion can be a turning portion with an inclined surface design or a curved surface design. However, the present application is not limited thereto, and those skilled in the art can adjust or configure the turning portion according to specific needs.

[0045] It is understood that the first airflow generating device 5 can be a device for generating the first airflow to ensure that the gas can effectively flow into the first accommodating chamber 24. For example, the airflow generating device can be a fan or a vacuum pump. However, the present application is not limited to this, that is, those skilled in the art can adjust or configure it according to specific needs.

[0046] It is understood that connectivity can refer to the connection between components that allows for smooth airflow. For example, the connectivity can be a direct pipe connection or a valve connection. However, this application is not limited thereto, and those skilled in the art may adjust or configure the configuration based on specific needs.

[0047] It is understood that the first airflow may be an airflow generated by the first airflow generating device 5, which is used to introduce gas into the first accommodating chamber 24. For example, the airflow may have different flow rates and flow rates. However, the present application is not limited thereto, and those skilled in the art may adjust or configure the airflow according to specific needs.

[0048] It is understood that the first target gas may be gas entering the first accommodating chamber 24 through the first air inlet 25, containing the first particulate matter 28 and the second particulate matter 29. For example, the first target gas may be: air (air in a natural environment, containing particulate matter such as water vapor, dust, and pollen), aerosol (a mixture comprising liquid or solid particles suspended in gas, such as fine particulate matter in haze, aerosols generated by sprays, and aerosols from cosmetics or detergents), smoke (such as tobacco smoke and industrial exhaust smoke, which often contain a variety of particulate matter), spray (such as pesticide sprays used in agriculture, which contain particulate matter of different sizes), gas mixture (gas containing specific components, such as exhaust gas containing sulfur dioxide and automobile exhaust containing nitrogen oxides), mist (such as mist formed by condensation of water vapor, containing numerous tiny water droplets), bioaerosol (such as gas containing biological particles such as bacteria, viruses, and spores suspended in air), or other specific gases (such as specific chemical gases that may be used in laboratories or gas streams generated in certain industrial processes). However, the present application is not limited thereto, and those skilled in the art can adjust or configure it according to specific needs.

[0049] It is understood that the first particles 28 may refer to larger particles, and the second particles 29 may refer to smaller particles. For example, using the first target gas as an aerosol, the first particles 28 may be particles that can form cloud droplets or ice crystals. The second particles 29 may be particles that cannot form cloud droplets. However, this application is not limited to this, and those skilled in the art may adjust or configure according to specific needs. In this technical solution, the first particles are particles with a particle size greater than 2.5 μm, and the second particles are particles with a particle size less than 2.5 μm.

[0050] It is understood that the second airflow generating device 1 can be a device for generating a second airflow to ensure that the second particulate matter 29 can be effectively drawn into the second receiving chamber 26. For example, the airflow generating device can be a fan or a vacuum pump. The second airflow can be an airflow generated by the second airflow generating device 1, which is used to draw the second particulate matter 29 into the second receiving chamber 26. For example, the airflow can have different flow rates and flow rates. However, this application is not limited to this, and those skilled in the art can adjust or configure it according to specific needs.

[0051] It can be understood that the second airflow can draw the second particles 29 entering the first accommodating chamber 24 through the first deflection portion 27 into the second accommodating chamber 26, which indicates the coordination between the second airflow and the first deflection portion 27. Because the large particles cannot be deflected by the inertia of the first airflow, the second airflow can only draw in the second particles after passing through the deflection portion. Therefore, the second airflow can draw the second particles into the second accommodating chamber 26 through the deflection portion, but cannot draw the first particles into the second accommodating chamber 26 through the deflection portion, thereby achieving the separation of the first particles 28 and the second particles 29.

[0052] Specifically, due to its greater mass and inertia, the first particles 28 are subject to inertia during the deflection of the second airflow, causing them to tend to maintain their original state of motion. When the second airflow passes through the deflection portion, the change in direction of the second airflow causes the smaller second particles 29 to deflect in the same direction as the second airflow and enter the second accommodating chamber 26. However, due to its greater inertia, the first particles 28 are unable to adapt to the change in direction of the second airflow and are thus unable to smoothly deflect and be drawn into the second accommodating chamber 26. Therefore, the first particles 28 continue to move along their original airflow path before the deflection portion, and are discharged into other channels or the first accommodating chamber 24. This mechanism effectively separates the first particles 28 and the second particles 29.

[0053] In this embodiment, the particle separation device can effectively separate particles of different sizes through precisely designed airflow. Specifically, the first separator 3 can generate a countercurrent airflow at the inlet, separating larger particles (such as cloud droplets or ice crystals) from smaller particles. During this process, a first target gas containing first particles 28 (larger particles) and second particles 29 (smaller particles) can be introduced through the first air inlet 25. Due to the inertia of the large particles, they are unable to deflect with the high-speed countercurrent airflow and are therefore effectively collected in the first receiving chamber 24. Simultaneously, the second airflow generating device 1 can draw in the smaller second particles 29 through the second receiving chamber 26, ensuring effective separation of the two types of particles. This separation process is accomplished without the need for physical impact, thus avoiding the particle breakage and rebound issues that can occur in traditional impactors.

[0054] In some embodiments, the second particles 29 may include activated particles and interstitial particles. The particle separation device may include a first air outlet 30. The first airflow generating device 5 is connected to the second accommodating chamber 26 through the first air outlet 30. The first airflow device is used to suck out the second particles 29 in the second accommodating chamber 26. The second particles 29 enter the target device through the first air outlet 30.

[0055] A growth environment device 10 is arranged between the first gas outlet 30 and the target device. The growth environment device 10 includes a temperature regulating device 9 for maintaining the first target gas passing through the first accommodating chamber 24 at a target temperature, and a humidity regulating device for maintaining the first target gas passing through the first accommodating chamber 24 at a target humidity. The growth environment device 10 is used to increase the size of the activated particles of the second particulate matter 29 to target activated particles, and maintain the original size of the interstitial particles.

[0056] It is understood that activated particles can be particles that can form or grow through physical or chemical processes under specific environmental conditions (such as temperature and humidity). Their size and properties can be suitable for specific applications, such as forming cloud droplets or participating in other meteorological processes. For example, activated particles may include, but are not limited to, aggregates of water molecules that form cloud droplets, liquid particles in aerosols, and solid particles that can participate in nucleation reactions under meteorological conditions. Interstitial particles can be particles that exist in gases or liquids but do not activate or change under specific conditions. They are typically small and do not participate in cloud droplet formation or other meteorological phenomena. For example, interstitial particles may include, but are not limited to, fine dust, particles of specific chemical composition, and aerosols that do not meet activation conditions.

[0057] It is understood that the first air outlet 30 may be a structure in the particle separation device, configured to draw the second particles 29 from the second receiving chamber 26 through airflow and direct them to the target device. For example, the first air outlet 30 may be a variety of outlets, such as a pipe, a valve, a filter, etc., and may have different diameters and configurations.

[0058] It is understood that the second particulate matter 29 may refer to particulate matter separated by the particulate matter separation device and entering the target device for subsequent processing or utilization through the first gas outlet 30. For example, the second particulate matter 29 may include activated particles and interstitial particles, and may be configured and selected in different ways depending on the processing requirements.

[0059] It is understood that the growth environment device 10 may refer to a device for regulating gas environment conditions (e.g., temperature and humidity) to promote the formation of activated particles and maintain the original size of interstitial particles. For example, the growth environment device 10 may include a temperature control device, a humidifier, a dehumidifier, a gas mixer, etc.

[0060] It is understood that the temperature regulating device 9 may refer to a device for controlling and maintaining the gas passing through the first accommodating chamber 24 within a target temperature range. For example, the temperature regulating device 9 may include a heater, a cooler, a temperature control valve, and the like.

[0061] It is understood that the humidity regulating device may refer to a device for controlling and maintaining the gas passing through the first accommodating chamber 24 within a target humidity range. For example, the humidity regulating device may include a humidifier, a dehumidifier, a humidity sensor, and the like.

[0062] It is understood that the target device may refer to a device or system downstream of the particle separation device, which can be used to process, utilize, or analyze particulate matter entering through the first air outlet 30. The function of this device can vary depending on the application requirements. For example, the target device may include, but is not limited to: a collection device (for collecting and storing separated particulate matter, such as a filter or collection container), an analysis device (an instrument for performing component analysis or property detection on particulate matter, such as a mass spectrometer or particle size analyzer), a reaction device (a device for performing chemical reactions or further processing on particulate matter, such as a reactor or catalytic device), a gas treatment device (for processing gas flows associated with particulate matter, such as exhaust gas treatment equipment or gas purification equipment), and an agricultural application device (a device for spraying pesticides or other bioactive substances, utilizing separated particulate matter for precise application, etc.). However, the present application is not limited to these, and those skilled in the art can adjust or configure the target device according to specific needs.

[0063] In this embodiment, the particle separation device can further separate activated particles from interstitial particles. By regulating the temperature and humidity through the designated growth environment device 10, the activated particles are not only accelerated to reach the target size, but also ensure that the interstitial particles maintain their original size, thus avoiding deformation or loss during the separation process and ensuring the integrity and functionality of the particles. Furthermore, the flexible design of the target device makes it suitable for a variety of fields, including environmental monitoring, meteorological research, agriculture, and materials science, thus increasing its wide application range.

[0064] It should be noted that the first accommodating chamber 24 may also have a second air outlet 31 , which may be used to guide the first particulate matter 28 out of the first accommodating chamber 24 .

[0065] In some embodiments, the growth environment device 10 may include a temperature control device 9 and a humidity control device;

[0066] The humidity regulating device may include a third accommodating chamber, the third accommodating chamber is used to accommodate the second particulate matter 29 after passing through the second accommodating chamber 26, and the third accommodating chamber has a water retaining layer 23 inside, and the water retaining layer 23 is used to maintain the humidity in the third accommodating chamber;

[0067] The temperature regulating device 9 may include a temperature control layer 8 located outside the third accommodating chamber. The temperature control layer 8 is used to control the temperature inside the third accommodating chamber.

[0068] It is understandable that the growth environment device 10 may include a temperature regulating device 9 and a humidity regulating device, which may work together to create optimal environmental conditions to promote the formation of activated particles.

[0069] Specifically, the humidity control device may include a third chamber for accommodating second particles 29 that have passed through second chamber 26. A water-retaining layer 23 is provided within the third chamber to maintain humidity within the chamber. The design of water-retaining layer 23 ensures that ambient moisture remains at an ideal level, thereby promoting the formation of activated particles under specific conditions, such as cloud droplet formation or other meteorological processes.

[0070] Furthermore, the temperature control device 9 may include a temperature control layer 8 located outside the third chamber. This layer controls the temperature within the third chamber. This precise temperature regulation ensures that the activated particles maintain the desired target size during particle separation and subsequent processing, without compromising the integrity of interstitial particles. The design of the temperature control layer 8 allows technicians to flexibly adjust the temperature based on actual needs to optimize particle activation.

[0071] It should be noted that there may be one or more growth environment devices 10 , and multiple growth environment devices 10 may be connected to the second accommodating chamber 26 together.

[0072] In some embodiments, the growth environment device 10 includes a fourth holding chamber and a water storage device 11. The fourth holding chamber is located between the third holding chamber and the second holding chamber 26. The fourth holding chamber is used to hold the second particulate matter 29 after passing through the second holding chamber 26. The water retention layer 23 has a water inlet and a water outlet. The water storage device 11 is arranged outside the fourth holding chamber. There is a water circulation device 4 between the water storage device 11 and the water retention layer 23. The water circulation device 4 is used to circulate the water in the water storage device 11 through the water inlet and send it into the water retention layer 23. The water outlet of the water retention layer 23 is used to circulate the water in the water retention layer 23 into the water storage device 11.

[0073] It is understood that the fourth accommodating chamber can be located between the third accommodating chamber and the second accommodating chamber 26, and can accommodate the second particulate matter 29 obtained after passing through the second accommodating chamber 26. Through this configuration, the fourth accommodating chamber can increase the processing space for the particulate matter and also provide the necessary environmental conditions for subsequent particulate matter separation.

[0074] The water-retention layer 23 can be equipped with a water inlet and outlet to facilitate water circulation. The water storage device 11 can be located outside the fourth chamber and connected to the water-retention layer 23 via a water circulation device 4. This water circulation device 4 circulates water from the water storage device 11 into the water-retention layer 23, thereby maintaining the ideal humidity level in the water-retention layer 23. This effectively maintains the activation conditions of the particles while ensuring the stability and integrity of the particles throughout the separation process.

[0075] The outlet of the water-retaining layer 23 circulates excess water in the water-retaining layer 23 back to the water storage device 11, ensuring a constant balance of water in the system and preventing the activation of particles from being affected by excess or insufficient water. This not only improves the efficiency of the system but also enhances its reliability in practical applications.

[0076] In this embodiment, the water storage device 11 can move excess water in the water retention layer 23 back into the middle water storage device 11 , thereby realizing water circulation in the growth environment device 10 .

[0077] In a preferred embodiment, a possible working process of the particle separation device may be as follows:

[0078] First, aerosol can be inhaled from the first air inlet 25, and aerosol particles are separated with a cut-off size of, for example, 2.5 μm. Aerosol particles larger than 2.5 μm enter the first receiving chamber 24, and aerosol particles smaller than 2.5 μm enter the second receiving chamber 26. The flow rate of this air path can be controlled by devices such as a vacuum pump and a float flowmeter.

[0079] Secondly, the aerosol particles entering the second receiving chamber 26 will enter the growth environment device 10. The growth environment device 10 has a water retention layer 23 and a temperature control layer 8, which can adjust the temperature and relative humidity of the aerosol particles entering therein so that they carry water vapor.

[0080] Again, the water circulation device 4 can extract water from the water storage device 11 into the inner wall of the water retention layer 23 (and the inner wall of the water retention layer 23 can also be provided with a porous water-absorbing material), so that the relative humidity of the inner wall of the aerosol growth tube reaches saturation. The water circulation device 4 can also move the excess water on the inner wall of the water retention layer 23 back into the water storage device 11, realizing water circulation in the aerosol regulator 7 and the aerosol growth tube.

[0081] Thirdly, the temperature control layer 8 can achieve a constant temperature difference between the aerosol particles at the end of the growth environment device 10 and the head end of the growth environment device 10. In a preferred embodiment, the temperature difference can be 30°C to 40°C.

[0082] Furthermore, the growth environment device 10 can activate and grow activated particles under the influence of differences in mass and temperature diffusivities, allowing them to grow to a size of 1 μm or larger. Aerosol particles that have grown to 1 μm in size after passing through the aerosol growth tube are considered activated particles, while those that have not been activated are considered interstitial particles, with a size of less than 1 μm. After the activated particles are separated from the interstitial particles, they can be processed by subsequent target devices.

[0083] It should be noted that this application does not specifically limit the size of the activated particles. Those skilled in the art may adjust their size based on actual circumstances. The 1 μm size mentioned above is merely an example of the possible sizes of the activated particles in this application, and is not limited to the sizes described in the above examples.

[0084] It should be noted that the working principle and structure of the second separator can refer to the description of the first separator 3 in the aforementioned embodiment, and the present invention will not elaborate on them here.

[0085] In some embodiments, the target device includes a second separator 12, the second separator 12 includes a fifth accommodating chamber and a second air inlet, the first air inlet 25 is connected to the fifth accommodating chamber, the sixth accommodating chamber and the second turning portion, the second turning portion is located between the second air inlet and the fifth accommodating chamber, a third airflow generating device 19, the third airflow generating device 19 is used to generate a third airflow, the third airflow generating device 19 is connected to the fifth accommodating chamber, the third airflow is used to allow the target activated particles and the gap particles to enter the fifth accommodating chamber through the second air inlet, a fourth airflow generating device 22, the fourth airflow generating device 22 is used to generate a fourth airflow, the fourth airflow generating device 22 is connected to the second turning portion through the sixth accommodating chamber, the fourth airflow can suck the gap particles entering the fifth accommodating chamber from the second turning portion into the sixth accommodating chamber, and the fourth airflow cannot suck the target activated particles entering the fifth accommodating chamber into the sixth accommodating chamber.

[0086] For example, a possible workflow of the particle separation device in this embodiment may be as follows:

[0087] First, the fifth chamber is connected to the first air inlet 25, receiving target activated particles (e.g., particles larger than 1 μm) and interstitial particles (e.g., particles smaller than 1 μm) flowing from the growth environment device 10. The second air inlet is used to guide the third airflow into the fifth chamber, ensuring efficient airflow.

[0088] Secondly, the second turning portion is located between the second air inlet and the fifth accommodating chamber. Its main function is to guide the incoming fourth airflow so that the target activated particles and the interstitial particles can be efficiently separated and diverted. At the same time, the fourth airflow generating device 22 is responsible for generating the fourth airflow, which is connected to the second turning portion through the sixth accommodating chamber. The design purpose of this device is to draw the interstitial particles entering the fifth accommodating chamber from the second turning portion into the sixth accommodating chamber, while not drawing the target activated particles into the sixth accommodating chamber. The interstitial particles can enter the sixth accommodating chamber under the action of the fourth airflow, while the relatively large target activated particles cannot enter the sixth accommodating chamber due to inertia, thus achieving the separation of the target activated particles from the interstitial particles.

[0089] In this embodiment, further separation of interstitial particles and target activated particles is achieved, which can be used for subsequent further processing of interstitial particles or target activated particles.

[0090] In some embodiments, there is a first drying device 13 between the third airflow generating device 19 and the fifth accommodating chamber, and the first drying device 13 is used to dry the water vapor in the third airflow, and / or there is a second drying device 14 between the fourth airflow generating device 22 and the sixth accommodating chamber, and the second drying device 14 is used to dry the water vapor in the fourth airflow.

[0091] For example, a possible workflow of the particle separation device in this embodiment may be as follows:

[0092] First, the first drying device 13 can be positioned between the third airflow generating device 19 and the fifth receiving chamber to dry out moisture in the third airflow. The presence of moisture can affect the efficiency of particle separation. Drying can reduce the interference of moisture with the airflow, thereby ensuring that the target activated particles and interstitial particles are in a more stable state upon entering the fifth receiving chamber. This embodiment not only improves particle separation accuracy but also helps prevent particle aggregation or adhesion caused by moisture.

[0093] Secondly, the second drying device 14, located between the fourth airflow generating device 22 and the sixth receiving chamber, is responsible for drying out moisture from the fourth airflow. By drying the fourth airflow, the composition of the airflow entering the sixth receiving chamber is ensured to be even purer, further improving the separation efficiency of interstitial particles. This drying device design ensures smoother flow of the fourth airflow, ensuring efficient separation and transfer of particulate matter.

[0094] It is understood that the present application does not specifically limit the type of the first drying device 13 and / or the second drying device 14. Persons skilled in the art may adjust their types based on actual circumstances. Any type of the first drying device 13 and / or the second drying device 14 may be used as long as it can dry the airflow. For example, the first drying device 13 and / or the second drying device 14 may be a condensation dryer (which condenses water by lowering the gas temperature, thereby achieving a drying effect), an adsorption dryer (which uses a desiccant (such as silica gel, molecular sieve, or activated carbon) to adsorb water from the gas), a hot air dryer (which heats air and mixes it with the gas to be dried, removing the water from the air), a membrane dryer (which uses a selectively permeable membrane to separate water passing through the membrane, achieving the purpose of drying), a spray dryer (which sprays liquid material into droplets, which rapidly evaporate upon contact with a hot air flow), a heat pump dryer (which utilizes the principle of a heat pump to transfer water from a low-temperature environment to a high-temperature area for drying), an electromagnetic dryer (which uses microwaves or radio frequency waves to heat water for rapid evaporation), etc.

[0095] In this embodiment, the effectiveness of the airflow processing process can be improved by introducing the first drying device 13 and the second drying device 14. This design ensures that during the particle separation process, water vapor in the airflow does not negatively affect the separation effect, thereby enhancing the stability and reliability of the technology.

[0096] In some embodiments, the first drying device 13 and / or the second drying device 14 is a Nafion™ aerosol drying tube.

[0097] In this embodiment, the Nafion™ aerosol drying tube is a highly efficient drying device specifically designed to remove water vapor from an airflow. Based on the unique properties of the Nafion™ material, it can effectively adsorb and remove moisture while maintaining the airflow, thereby ensuring that the water vapor concentration of the third and fourth airflows is reduced to an ideal level before entering the corresponding containment chambers, thereby maximizing the efficiency of particle separation. Furthermore, the advantage of using a Nafion™ aerosol drying tube lies in its efficient drying capability, which enables it to quickly and effectively remove water vapor from an airflow compared to traditional drying devices, ensuring the purity of the airflow. Furthermore, the Nafion™ material exhibits excellent chemical stability to a variety of gases, making it suitable for use in various experimental and industrial environments, thus enhancing the applicability of the device. Furthermore, the drying tube consumes relatively little energy during operation, helping to reduce overall operating costs and improve economic efficiency. Finally, its structural design also makes maintenance and replacement processes simple and efficient, reducing downtime. These features collectively ensure the efficiency and reliability of the particle separation device.

[0098] In some embodiments, an optical particle counter 15 is provided between the third airflow generating device 19 and the fifth containing chamber, and the optical particle counter 15 is used to measure the number concentration of target activated particles, and / or a condensation particle counter 16 is provided between the fourth airflow generating device 22 and the sixth containing chamber, and the condensation particle counter 16 is used to measure the number concentration of interstitial particles.

[0099] As will be appreciated, the optical particle counter 15, positioned between the third airflow generating device 19 and the fifth receiving chamber, can be used to measure the number concentration of the target activated particles. Using optical principles, this counter can quickly and accurately detect changes in the concentration of particles in the airflow, providing real-time feedback on the number of target activated particles. This function not only helps optimize particle separation efficiency but also provides important data for subsequent processing and analysis, enabling operators to adjust airflow and separation parameters in a timely manner to achieve optimal separation results.

[0100] For example, the optical particle counter 15 can be: a laser particle counter (which uses the principle of laser scattering to determine the number and size of particles by measuring the scattered intensity of light), a light transmission particle counter (which measures the attenuation of light passing through a sample to measure particles in an airflow), a light scattering particle counter (which monitors the number concentration and size distribution of particles in real time based on the scattering ability of particles), a multi-wavelength optical particle counter 15 (which uses lasers of multiple wavelengths for particle detection and can distinguish different types of particles), a portable optical particle counter 15 (which is miniaturized and suitable for on-site monitoring and portable applications), etc.

[0101] As will be appreciated, the condensation particle counter 16 is positioned between the fourth airflow generating device 22 and the sixth receiving chamber, specifically for measuring the number concentration of interstitial particles. This counter utilizes the condensation principle to effectively detect the concentration of tiny particles in the airflow, providing more accurate monitoring of the separation process. This design ensures effective separation of interstitial particles and helps improve the accuracy and reliability of particle processing.

[0102] For example, the condensation particle counter 16 can be: a gas condensation particle counter 16 (CPC) (by cooling the gas to below the dew point, causing water vapor to condense on particulate matter, thereby forming measurable droplets), a dynamic light scattering condensation counter (combining the condensation principle with dynamic light scattering technology to monitor the number concentration and particle size distribution of particulate matter in real time), a condensation gas counter (by changing the temperature and pressure of the gas, causing tiny particles to aggregate and be counted), a laser condensation particle counter 16 (using laser technology to measure the number concentration of particulate matter during the condensation process), a portable condensation particle counter 16 (a small device suitable for on-site monitoring and mobile applications), etc.

[0103] In some embodiments, there is a first collecting device 17 between the third airflow generating device 19 and the fifth accommodating chamber, and the first collecting device 17 is used to collect target activated particles, and / or there is a second collecting device 18 between the fourth airflow generating device 22 and the sixth accommodating chamber, and the second collecting device 18 is used to collect gap particles.

[0104] It is understood that the first collection device 17 can be positioned between the third airflow generating device 19 and the fifth receiving chamber, specifically for collecting the target activated particles. This collection device utilizes appropriate physical or chemical mechanisms, such as electrostatic adsorption, gravity settling, or filtration, to effectively capture the separated target activated particles, ensuring they are not carried away by the airflow. This not only improves the recovery rate of the target activated particles but also facilitates subsequent processing and analysis, providing a reliable data foundation for further applications.

[0105] For example, the first collection device 17 can be: an electrostatic collector (which uses electrostatic force to capture charged or polar particles, suitable for collecting target activated particles), a filter (which uses filter materials with different pore sizes to collect target activated particles through physical filtration), a centrifugal separator (which separates and collects target activated particles from the airflow through the centrifugal force generated by rotation), a sedimentation tank (which uses the principle of gravity sedimentation to allow target activated particles to settle in a static area for easy collection), a gas scrubber (which collects particles in the airflow through liquid spraying or foaming), etc.

[0106] As will be appreciated, the second collection device 18 is positioned between the fourth airflow generating device 22 and the sixth receiving chamber, primarily for collecting interstitial particles. This device also employs a suitable collection mechanism to ensure effective capture of interstitial particles during the separation process. By precisely controlling the collection conditions, the second collection device 18 maximizes the collection rate of interstitial particles without affecting the airflow and particle characteristics, thereby enhancing the overall separation effect.

[0107] For example, the second collection device 18 can be: a condensation collector (through the condensation effect, the interstitial particles are attached to the condensation surface for easy collection), a settler (using gravity or airflow changes to make the interstitial particles settle and collect inside the equipment), a magnetic collector (applying a magnetic field in the airflow and using magnetic materials to capture magnetic or conductive interstitial particles), a multi-stage centrifugal separator (through multi-stage rotation, interstitial particles of different sizes are effectively separated and collected), an adsorbent collector (using activated carbon or other materials to adsorb interstitial particles for collection), etc.

[0108] In some embodiments, the first airflow generating device 5 and / or the second airflow generating device 1 is a vacuum pump, the first airflow generating device 5 includes a first float flowmeter 6, the first float flowmeter 6 is used to monitor the flow rate of the first airflow, and / or the second airflow generating device 1 includes a second float flowmeter 2, the second float flowmeter 2 is used to monitor the flow rate of the second airflow.

[0109] It is understood that a vacuum pump can be an option for the first airflow generating device 5 and / or the second airflow generating device 1. Its primary function is to create a negative pressure environment, promoting airflow within the device, thereby effectively guiding the separation of particulate matter in the gas. The use of a vacuum pump ensures the stability and controllability of the airflow, providing strong support for the subsequent particle separation process. Compared to traditional airflow generation methods, a vacuum pump can better adapt to the airflow requirements under different operating conditions, enhancing the flexibility and applicability of the equipment.

[0110] However, the present invention does not specifically limit the type of the first airflow generating device 5 and / or the second airflow generating device 1. For example, the first airflow generating device 5 and / or the second airflow generating device 1 can also be a blower (using a fan or centrifugal principle to generate airflow, suitable for occasions requiring a large airflow volume), a compressed air device (generating airflow through a compressed air source, suitable for applications requiring high-pressure airflow), a gas pump (such as a diaphragm pump or a gear pump, which can effectively move gas and is suitable for the processing of specific gases), an ejector (using the principle of fluid dynamics to inject gas into the fluid through a nozzle to generate airflow), an electric fan (a simple electric fan can be used for small-scale airflow generation, suitable for low-requirement applications), a centrifugal pump (generating airflow through a rotating impeller, suitable for the transfer of liquids and gases), a negative pressure aspirator (extracting gas from a certain area through the negative pressure principle to form an airflow), etc., that is, those skilled in the art can set or adjust according to actual conditions.

[0111] It is understood that the introduction of the first float flowmeter 6 and the second float flowmeter 2 is used to monitor the flow rates of the first and second airflows, respectively. The flowmeters can display the flow rate of the airflow in real time by raising and lowering the floats, providing ease of operation and high accuracy. The presence of the flowmeters enables operators to monitor airflow changes at all times, allowing them to adjust airflow parameters in a timely manner to achieve optimal separation results. In addition, real-time flow monitoring helps ensure that the equipment operates within a safe range and avoids poor particle separation results caused by airflow fluctuations.

[0112] In a preferred embodiment, the third airflow generating device 19 includes a third float flowmeter 20, which is used to monitor the flow of the third airflow, and / or the fourth airflow generating device 22 includes a fourth float flowmeter 21, which is used to monitor the flow of the fourth airflow.

[0113] It should be noted that, with regard to the third float flowmeter 20 and / or the fourth float flowmeter 21 , reference may be made to the description of the aforementioned embodiments, and the present invention will not elaborate on them herein.

[0114] Based on the same concept, the technical solution of the present invention further provides a gas particle concentration detection device. It is understandable that the gas particle concentration detection device provided in this embodiment can have all the beneficial effects of the above-mentioned particle separation device, and the present invention will not elaborate on them here.

[0115] Based on the same concept, the technical solution of the present invention further provides an aerosol injection device. It is understandable that the aerosol injection device provided in this embodiment can have all the beneficial effects of the above-mentioned particle separation device, and the present invention will not elaborate on them here.

[0116] It is understood that in the present invention, "plurality" refers to two or more than two, and other quantifiers are similar. "And / or" describes the association relationship of related objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. The singular forms "a", "an", and "the" are also intended to include plural forms, unless the context clearly indicates otherwise.

[0117] It will be further understood that the terms "first," "second," and the like are used to describe various types of information, but such information should not be limited to these terms. These terms are used solely to distinguish information of the same type from one another and do not imply a particular order or level of importance. In fact, the terms "first," "second," and the like are fully interchangeable. For example, first information could be referred to as second information, and similarly, second information could be referred to as first information without departing from the scope of the present invention.

[0118] It can be further understood that the terms "center", "longitudinal", "lateral", "front", "back", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation.

[0119] It is further understood that, unless otherwise specified, “connection” includes a direct connection where there are no other components between the two elements, and also includes an indirect connection where there are other elements between the two elements.

[0120] It should be further understood that although the operations in the technical solutions of the present invention are described in a particular order in the accompanying drawings, this should not be construed as requiring that the operations be performed in the particular order shown or in a serial order, or that all of the illustrated operations be performed to obtain the desired results. In certain circumstances, multitasking and parallel processing may be advantageous.

[0121] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the technical concepts disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0122] It should be understood that the present invention is not limited to the exact structure described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the scope of the appended claims.

Claims

1. A device for separating interstitial aerosols and cloud droplets, characterized in that: The invention comprises a first separator, the first separator comprising a first accommodating chamber, a first air inlet, a second accommodating chamber, a first turning portion, a first airflow generating device and a second airflow generating device, the first air inlet being connected to the first accommodating chamber, the first turning portion being located between the first air inlet and the first accommodating chamber, the first airflow generating device being used to generate a first airflow, the first airflow generating device being connected to the first accommodating chamber, the first airflow being used to allow a first target gas to enter the first accommodating chamber through the first air inlet, the first target gas comprising first particles and second particles, the size of the first particles being larger than the size of the second particles; The second airflow generating device is used to generate a second airflow, and the second airflow generating device is connected to the first turning portion through the second accommodating chamber. The second airflow can draw the second particles that have entered the first accommodating chamber into the second accommodating chamber through the first turning portion, but the second airflow cannot draw the first particles that have entered the first accommodating chamber into the second accommodating chamber. The second particulate matter includes activated particles and gap particles, and the particulate matter separation device further includes a first air outlet, and the second airflow generating device is connected to the second containing chamber through the first air outlet, and the second airflow device is used to suck out the second particulate matter in the second containing chamber, and the second particulate matter enters the target device through the first air outlet; a growth environment device is provided between the first air outlet and the target device, and the growth environment device is used to increase the size of the activated particles of the second particulate matter into target activated particles, and maintain the original size of the gap particles; the growth environment device includes a temperature regulating device and a humidity regulating device, and the temperature regulating device is used to maintain the first target gas passing through the first containing chamber at a target temperature, and the humidity regulating device is used to maintain the first target gas passing through the first containing chamber at a target humidity; the humidity regulating device includes a third containing chamber, and the third containing chamber is used to accommodate the second particulate matter after passing through the second containing chamber, and the third containing chamber has a water retaining layer inside, and the water retaining layer is used to maintain the humidity in the third containing chamber; the temperature regulating device includes a temperature control layer, which is located outside the third containing chamber, and the temperature control layer is used to control the temperature in the third containing chamber; The growth environment device further includes a water storage device, the water retention layer has a water inlet and a water outlet, and a water circulation device is provided between the water storage device and the water retention layer. The water circulation device is used to circulate the water in the water storage device into the water retention layer through the water inlet of the water retention layer, and the water outlet of the water retention layer is used to circulate the water in the water retention layer into the water storage device; the target device includes a second separator, the second separator includes a fifth accommodating chamber, a second air inlet, a sixth accommodating chamber, a second turning portion, a third air flow generating device and a fourth air flow generating device, the second air inlet is connected to the fifth accommodating chamber, the second turning portion is located between the second air inlet and the fifth accommodating chamber, the third air flow generating device is used to generate a third air flow, the third air flow generating device is connected to the fifth accommodating chamber, and the third air flow is used to allow the target activated particles and the interstitial particles to enter the fifth accommodating chamber through the second air inlet; The fourth airflow generating device is used to generate a fourth airflow. The fourth airflow generating device is connected to the second turning part through the sixth accommodating chamber. The fourth airflow can suck the interstitial particles entering the fifth accommodating chamber from the second turning part into the sixth accommodating chamber. The fourth airflow cannot suck the target activated particles entering the fifth accommodating chamber into the sixth accommodating chamber.

2. The device for separating interstitial aerosols and cloud droplets according to claim 1, characterized in that: The growth environment device further includes a fourth accommodating chamber, which is located between the third accommodating chamber and the second accommodating chamber, and is used to accommodate the second particulate matter after passing through the second accommodating chamber; the water storage device is arranged outside the fourth accommodating chamber.

3. The device for separating interstitial aerosols and cloud droplets according to claim 2, characterized in that: A first drying device is provided between the third airflow generating device and the fifth accommodating chamber, and the first drying device is used to dry the water vapor in the third airflow; and / or a second drying device is provided between the fourth airflow generating device and the sixth accommodating chamber, and the second drying device is used to dry the water vapor in the fourth airflow.

4. The device for separating interstitial aerosols and cloud droplets according to claim 3, characterized in that: The first drying device and / or the second drying device is a Nafion™ aerosol drying tube.

5. The device for separating interstitial aerosols and cloud droplets according to claim 4, characterized in that: An optical particle counter is provided between the third airflow generating device and the fifth accommodating chamber, and the optical particle counter is used to measure the number concentration of target activated particles; and / or a condensation particle counter is provided between the fourth airflow generating device and the sixth accommodating chamber, and the condensation particle counter is used to measure the number concentration of gap particles.

6. A gas particulate matter concentration detection device, characterized in that: The gas particle concentration detection device comprises the interstitial aerosol and cloud droplet separation device according to any one of claims 1 to 5.

7. An aerosol sampling device, characterized in that: The aerosol sampling device comprises the interstitial aerosol and cloud droplet separation device according to any one of claims 1 to 5.

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