Multi-jet salt lake aerosol simulation generating device and method

Abstract

The present application belongs to the technical field of aerosol generation, and particularly relates to a multi-jet salt lake aerosol simulation generation device and method, which is used for simulating the process of generating initial aerosol from high-salinity salt lake water under laboratory conditions. The device comprises a box, a water pumping assembly, a flow dividing device, multiple jet water pipes and an aerosol sampling assembly. After the salt lake water sample in the box is pumped out by the water pumping assembly, it is distributed to the multiple jet water pipes through the flow dividing device, so that multiple jet water streams impact the liquid surface in the box from a set height at the same time, and multiple dispersed bubble plumes are formed in the liquid surface and the sub-liquid area. Compared with the single-jet mode, the present application can expand the liquid surface disturbance area and increase the bubble plume formation range under the condition of less salt lake water sample, which is beneficial to improve the salt lake aerosol generation efficiency and sampling stability. The device has a simple structure and requires less water sample, and is suitable for the simulation, collection and particle size distribution research of initial aerosol of high-salinity salt lake water system.

Description

Technical Field

[0001] This invention belongs to the field of aerosol generation technology, specifically relating to a multi-jet salt lake aerosol simulation device and method. Background Technology

[0002] Aerosol generators simulate the aerosol generation process under field conditions in a laboratory setting. By bringing field experiments to the laboratory, pristine aerosols unaffected by the environment can be collected. Furthermore, the effects of controlled changes on aerosols can be studied in the laboratory, reducing the manpower and resources required for subsequent experimental research.

[0003] Currently, common methods for simulating aerosol generation mainly include bubbling, jetting, and waterfall methods. Research on salt lake aerosols is relatively limited, but research on marine droplet aerosols is more extensive. Since salt lake water is high-salinity inland lake water, research on marine droplet aerosol simulation devices can be referenced. The generation, size, and chemical composition of salt lake aerosol particles are highly dependent on the chemistry of the salt lake water, which is controlled by physical, chemical, and biological processes. These influencing factors are complex, and experimental devices can be designed based on the mechanisms of aerosol generation in salt lake water.

[0004] From a natural process perspective, when waves generate on the lake surface and crash against the liquid, they create tiny water droplets and bubbles. These bubbles rise to the surface and burst, generating aerosols. However, due to the complexity of the actual environment, aerosols collected in the field are easily affected by the surrounding environment, making it difficult to collect the initial aerosols generated in salt lakes. Furthermore, studying only in-situ aerosols limits the scope of research. Therefore, a device is needed to simulate aerosol generation from salt lake water under laboratory conditions. Compared to seawater, salt lake water typically has higher salinity and a more complex ionic composition. The chemical composition varies significantly between different salt lake water samples, and the amount of water sampled in the field is limited. Using large-volume water tanks or single-point jet methods for simulation, with limited water samples, problems such as concentrated surface disturbance areas, small bubble plume distribution, insufficient aerosol generation efficiency, and poor sampling repeatability can easily occur.

[0005] Existing jet-type aerosol generators mostly employ a single water jet impacting the liquid surface. While this can create bubble plumes and generate aerosols, the surface disturbance is mainly concentrated near a single impact point. With limited water samples, this can lead to problems such as concentrated surface disturbance, small bubble plume distribution, insufficient aerosol generation efficiency, and poor sampling repeatability. In experimental conditions with small salt lake water samples and low tank levels, the single-jet method struggles to create a sufficiently large bubble bursting area within the limited liquid surface, easily resulting in insufficient aerosol generation efficiency and large fluctuations in sampling concentration. Simply increasing the single-jet flow rate may increase large droplet splashing and affect sampling stability. Therefore, a device is needed that can generate dispersed bubble plumes through multi-point jetting and improve aerosol sampling stability under conditions of limited salt lake water samples. Summary of the Invention

[0006] The purpose of this invention is to provide a multi-jet salt lake aerosol simulation device and method, which can simultaneously impact the liquid surface with multiple jets of water, forming multiple annularly distributed impact zones and bubble plumes within a limited liquid surface area. Compared with a single jet structure with a single impact zone, it can expand the range of bubble formation and collapse, which is beneficial to improving the efficiency of salt lake aerosol generation and sampling stability.

[0007] The specific technical solution adopted by this invention is as follows: A multi-jet salt lake aerosol simulation generator includes a generator container, a pumping assembly, a diversion device, multiple jet water pipes, and an aerosol sampling assembly. Multiple jet water pipes are installed on the top of the generating device container, and the outlet end of the jet water pipes is located inside the generating device container. The multiple jet water pipes are arranged in a ring array with the axis of the generating device container as the center. The pumping assembly is installed on the generating device container. The diversion device has one inlet and multiple outlets. The inlet is connected to the pumping assembly, and the multiple outlets are respectively connected to multiple jet water pipes. The outlet ends of multiple jet water pipes are all set towards the liquid surface inside the generating device container, so that multiple jet water flows simultaneously impact the liquid surface and form multiple annular arrays of bubble plumes in the liquid surface and submerged areas. Adjacent bubble plumes can partially overlap in the liquid surface and submerged areas. The aerosol sampling assembly is installed on the container of the generating device; The side wall of the generating device container is also provided with an airflow balance hole for maintaining the airflow balance inside the box during the sampling process.

[0008] Furthermore, the number of jet water pipes is four, and the diversion device is a one-to-four diversion device. The one-to-four diversion device has one inlet and four outlets. The inlet of the one-to-four diversion device is connected to the outlet of the water pump, and the four outlets of the one-to-four diversion device are respectively connected to the four jet water pipes through flexible hoses.

[0009] Furthermore, the water pumping assembly includes a water pumping pipe and a water pump. A first mounting hole is provided on the edge region of the top of the generating device container. The lower end of the water pumping pipe is inserted into the interior of the generating device container through the first mounting hole. The upper end of the water pumping pipe is connected to the water pump, and the water pump is connected to the diversion device.

[0010] Furthermore, the generating device container has dimensions of 30×20×30cm, the volume of the salt lake water sample inside the generating device container is 4-5L, the liquid level of the salt lake water sample inside the generating device container is 7-8cm, the water outlet of the jet pipe is 18-22cm from the liquid surface, and the total flow rate of the water pump is controlled at 3-6L / min.

[0011] A method for simulating the generation of aerosols from salt lake water includes the following steps: Step 1: Add salt lake water sample to the generating device container to the predetermined liquid level; Step 2: Assemble the water pumping pipe, multiple jet water pipes, and sampling device, and ensure that the outlet ends of the multiple jet water pipes face the liquid surface inside the tank; Step 3: Start the water pump so that the salt lake water sample in the generating device container is distributed by the diversion device and ejected by multiple jet water pipes. Multiple jet water streams simultaneously impact the liquid surface, forming multiple ring-shaped bubble plumes on and under the liquid surface. Step 4: Run the device for 5-30 minutes until the device's operating status stabilizes, then start the sampling device to collect samples through the aerosol sampling port. Step 5: After sampling is completed, first turn off the sampling device, then turn off the water pump.

[0012] The technical effects achieved by this invention are as follows: (1) The multi-jet salt lake aerosol simulation device and method of the present invention forms multiple ring-shaped impact zones and bubble plumes within a limited liquid surface by simultaneously impacting the liquid surface with multiple jet water streams. Compared with the single jet structure of a single impact zone, it can expand the range of bubble formation and rupture, which is beneficial to improving the salt lake aerosol generation efficiency and sampling stability.

[0013] (2) The multi-jet salt lake aerosol simulation device and method of the present invention arranges multiple jet water pipes in a ring array around the central area of ​​the top of the box, so that the bubble plume is no longer concentrated in a single liquid surface area, reducing the splashing of large droplets and sampling fluctuations caused by excessive local disturbances, which is beneficial to improving the sampling stability and experimental repeatability of salt lake aerosols.

[0014] (3) The process of generating aerosols in the multi-jet salt lake aerosol simulation device and method of the present invention is a purely physical process, which does not involve high temperature and other conditions, and has little impact on the chemical composition of aerosols.

[0015] (4) The multi-jet salt lake aerosol simulation device and method of the present invention has a small container volume and requires less water sample, which is suitable for situations where it is difficult to obtain salt lake water samples or multiple sets of comparative experiments need to be carried out.

[0016] (5) The multi-jet salt lake aerosol simulation device and method of the present invention has a simple structure, is easy to manufacture and convenient for laboratory setup, and is suitable for conducting simulation, collection and subsequent physicochemical analysis of salt lake aerosols. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a multi-jet salt lake aerosol simulation generator according to the present invention.

[0018] Figure 2 This is a front view schematic diagram of a multi-jet salt lake aerosol simulation generator according to the present invention.

[0019] Figure 3 This is a schematic diagram of the left-hand structure of a multi-jet salt lake aerosol simulation generator according to the present invention.

[0020] Figure 4 This is a top view schematic diagram of a multi-jet salt lake aerosol simulation generator according to the present invention.

[0021] Figure 5 This is a schematic diagram of the structure of a one-to-four-splitter device for a multi-jet salt lake aerosol simulation generator according to the present invention.

[0022] Figure 6 This is a particle size distribution map of salt lake aerosol particles generated and collected using a multi-jet salt lake aerosol simulation device of the present invention.

[0023] The attached diagram lists the components represented by each number as follows: 1. Generating device container; 2. First mounting hole; 3. Pump pipe; 4. Pump; 5. One-to-four diversion device; 6. Jet water pipe; 7. Second mounting hole; 8. Jet water flow; 9. Bubble plume; 10. Aerosol sampling hole; 11. Airflow balancing hole; 12. Variable diameter straight connector. Detailed Implementation

[0024] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0025] like Figures 1-6 As shown, a multi-jet salt lake aerosol simulation generator includes a generator container 1, a pumping assembly, a diversion device, multiple jet water pipes 6, and an aerosol sampling assembly. Among them, such as Figures 1-2 and Figure 4 As shown, the generating device container 1 is a vertical box assembled from acrylic sheets or glass to observe changes in the liquid level, the water flow impact state, and the formation of underwater bubble plumes 9. Its dimensions are 30×20×30cm. The box is enclosed on all sides, but the top structure can be opened and closed to facilitate the injection of water samples, installation of pipelines, and cleaning devices.

[0026] Multiple jet water pipes 6 are installed on the top of the generating device container 1. The jet water pipes 6 are arranged vertically, and the outlet end of the jet water pipes 6 is located inside the generating device container 1. The multiple jet water pipes 6 are arranged in a ring array with the axis of the generating device container 1 as the center. The outlet ends of multiple jet water pipes 6 are all set towards the liquid surface inside the generating device container 1, so that multiple jet water streams 8 simultaneously impact the liquid surface and form multiple annular arrays of bubble plumes 9 in the liquid surface and submerged area. Specifically, a second mounting hole 7 is provided in the middle area of ​​the top of the generating device container 1. The number of second mounting holes 7 is the same as the number of jet water pipes 6. The water outlet end of the jet water pipe 6 is inserted into the interior of the generating device container 1 through the second mounting hole 7.

[0027] It should be understood that, provided that the multi-point jet impact on the liquid surface is satisfied, the number of jet water pipes 6 can also be set to three, four, or six depending on the size of the chamber and experimental requirements. In this embodiment, the number of jet water pipes 6 is preferably four, and four jet water pipes 6 are preferably as follows: Figure 1 As shown, it maintains a circular array while also exhibiting a square array.

[0028] like Figures 1-2 As shown, in some further embodiments, the lower end of the jet water pipe 6 is fixedly connected to a reducing straight connector 12, which is fixedly connected inside the second mounting hole 7, and the lower end of the reducing straight connector 12 serves as the outlet end of the jet water pipe 6. Among them, such as Figures 1-2 and Figure 4As shown, the pumping assembly is installed on the generating device container 1 and is used to pump out the liquid inside the generating device container 1. Specifically, the water pumping assembly includes a water pump pipe 3 and a water pump 4. The water pump pipe 3 is a flexible hose with an inner diameter of 10mm. Its inlet end is equipped with a filter screen to reduce the entry of larger particles into the water pump 4. The water pump 4 is a self-priming pump with adjustable flow rate so that the water flow intensity can be adjusted according to experimental needs. The flow rate range is 3-6L / min.

[0029] The top of the generating device container 1 is provided with a first mounting hole 2. Preferably, the first mounting hole 2 is located in the edge area of ​​the top of the generating device container 1, so that the first mounting hole 2 is spaced apart from the mounting holes of the multiple jet water pipes 6, so as to reduce the interference of the pumping pipe 3 on the impact area of ​​the multiple jet water flow 8. The lower end of the pumping pipe 3 is inserted into the inside of the generating device container 1 through the first mounting hole 2 and comes into contact with the liquid inside the generating device container 1. The upper end of the pumping pipe 3 is connected to the pumping pump 4. The pumping pump 4 is connected to the diversion device for inputting the liquid into the diversion device. It should be noted that by placing the first mounting hole 2 at the edge of the top of the generating device container 1, away from the jet area formed by the multiple jet water pipes 6, the above arrangement can enable the multiple jet water flows 8 to form a dispersed multi-point impact area on the liquid surface inside the tank, and reduce the interference of the pumping pipe 3 on the jet impact area and the bubble plume 9 forming area.

[0030] The diversion device has one inlet and multiple outlets. The inlet is connected to the pumping assembly, and the multiple outlets are connected to multiple jet water pipes 6 respectively. like Figure 5 As shown, the diversion device is preferably a one-to-four diversion device 5. The one-to-four diversion device 5 has one inlet and four outlets. The inlet of the one-to-four diversion device 5 is connected to the outlet of the water pump 4, and the four outlets of the one-to-four diversion device 5 are connected to four jet water pipes 6 through flexible hoses. The single stream of liquid output from the water pump 4 is divided into four streams after passing through the one-to-four diversion device 5, and enters the four jet water pipes 6 respectively. This allows the four streams of water to simultaneously impact the liquid surface from the top of the tank, forming four adjacent impact areas and corresponding multiple bubble plumes 9 within the limited liquid surface area. The adjacent bubble plumes 9 can partially overlap in the liquid surface and subsurface areas, thereby expanding the bubble bursting area, which is beneficial to improving the aerosol generation efficiency and sampling stability.

[0031] In this invention, a water pump 4 extracts a salt lake water sample from the tank. After being distributed by a one-to-four splitter device 5, four jets of water 8 simultaneously impact the liquid surface from the top of the tank. The simultaneous action of the four jets on the liquid surface creates multiple bubble plumes 9 both on and below the surface, thereby expanding the surface disturbance range and improving aerosol generation efficiency. Compared to a single jet, this invention, by simultaneously applying four jets of water 8 to the liquid surface, creates more surface disturbance areas and bubble plumes 9 within a limited space, thus improving aerosol generation efficiency.

[0032] Among them, such as Figures 1-2 and Figure 3 As shown, the aerosol sampling assembly is installed on the generator container 1 for sampling aerosols; Specifically, the aerosol sampling assembly includes an aerosol sampling hole 10 opened on one side of the generating device container 1. The aerosol sampling hole 10 is a hole with a diameter of 10 mm. The aerosol sampling hole 10 is used to connect to an external aerosol sampler or aerosol sampling device as a sampling device to collect salt lake aerosols formed by water flow impacting the liquid surface and the process of bubble bursting.

[0033] The side wall of the generator container 1 is also provided with an airflow balancing hole 11 for maintaining airflow balance inside the chamber during sampling. Preferably, a filter is installed at the airflow balancing hole 11 to reduce interference from external particulate matter entering the chamber and affecting the initial aerosol sampling results of the salt lake.

[0034] like Figures 1-4 As shown, the lower ends of the four jet water pipes 6 are positioned towards the liquid surface and maintained at a certain distance from it. When the water pump 4 is running, the four water jets simultaneously strike the liquid surface and generate impact. Because the four jets are spatially distributed in a square shape, four adjacent impact zones are formed on the liquid surface, corresponding to the generation of multiple bubble plumes 9 below the liquid surface. The bubble plumes 9 overlap between adjacent zones, increasing the bubble distribution range and the area of ​​liquid surface rupture, thereby promoting aerosol generation.

[0035] The working process of the device of this invention is as follows: First, 4-5L of salt lake water sample is added to the generating device container 1, making the liquid level 7-8cm. Then, the pumping pipe 3, four jet water pipes 6, and sampling pipe are installed, and the top structure of the generating device container 1 is closed or adjusted to a suitable state. After starting the pumping pump 4, the liquid in the generating device container 1 is drawn out through the pumping pipe 3 and distributed to the four jet water pipes 6 through the one-to-four splitter device 5. The four jet water streams 8 simultaneously impact the liquid surface from the top, and the outlet end of the jet water pipe 6 is 18-22cm away from the liquid surface, forming multiple annularly distributed bubble plumes 9 in the liquid surface and submerged areas. After the device has been running for 5-30 minutes and the operating state has stabilized, the external sampling device is started to collect the generated salt lake aerosol through the aerosol sampling port 10. During the sampling process, the airflow balance port 11 is used to maintain the air pressure balance inside and outside the chamber. After sampling is completed, the sampling device is closed first, and then the pumping pump 4 is turned off. In this embodiment, the generating device container 1 has dimensions of 30×20×30cm, the salt lake water sample volume is 4-5L, the liquid level is 7-8cm, the outlet of the jet water pipe 6 is 18-22cm from the liquid surface, and the total flow rate of the water pump 4 is controlled at 3-6L / min. When the above parameters are combined, the four jet water streams 8 can form adjacent but not completely overlapping impact areas on the liquid surface in the middle of the tank, which can both expand the distribution range of the bubble plume 9 and avoid large droplet splashing caused by excessive flow of a single jet. This structure is particularly suitable for situations where the amount of salt lake water sample is small and multiple parallel experiments need to be carried out. After the device is running stably, an external aerosol sampling device is connected through the aerosol sampling port 10 to collect the salt lake aerosol particles generated in the tank; the collected aerosol samples are subjected to particle size statistical analysis to obtain Figure 6 The particle size distribution of salt lake aerosol particles is shown. This particle size distribution result was obtained under the following conditions: 4-5L of salt lake water sample was added to the chamber, the liquid level was 7-8cm, the water outlet of the jet pipe 6 was 18-22cm from the liquid surface, and the total flow rate of the water pump 4 was 6L / min. Figure 6 The results show that, under the condition that four jets of water simultaneously impact the liquid surface, the device of the present invention can generate salt lake aerosol particles that can be sampled and subjected to particle size statistical analysis, indicating that the device can be used for laboratory simulation of salt lake water aerosol generation and subsequent particle size distribution research.

[0036] In this embodiment, a one-to-four splitting method is adopted to transform a single circulating water flow into four jet water flows 8 that simultaneously act on the liquid surface. Compared with the action of a single water flow, this embodiment can form a larger liquid surface disturbance area and more bubble plumes 9 under the same tank volume and fewer water samples, thereby improving the aerosol generation efficiency.

[0037] Without departing from the core concept of this invention, the number of jet water pipes 6 need not be limited to four, and can be set to two, three, four or more according to experimental needs.

[0038] Without departing from the core concept of this invention, the material of the enclosure is not limited to acrylic; other transparent or translucent materials that can meet the observation requirements and corrosion resistance requirements, such as plexiglass, can be used.

[0039] Without departing from the core concept of this invention, the specifications, flow range, through-hole size and installation method of the water pump 4 and the connecting pipe can be appropriately adjusted according to different experimental scales.

[0040] A method for simulating the generation of aerosols from salt lake water includes the following steps: Step 1: Add 4-5L of salt lake water sample to container 1 of the generating device until the predetermined liquid level is reached, i.e., the liquid level is 7-8cm. Step 2: Assemble the water pumping pipe 3, multiple jet water pipes 6 and the sampling device, and make the water outlet of the multiple jet water pipes 6 face the liquid surface in the box, with the water outlet of the jet water pipes 6 18-22cm away from the liquid surface; Step 3: Start the water pump 4 so that the salt lake water sample in the generating device container 1 is distributed by the diversion device and ejected by multiple jet water pipes 6. Multiple jet water streams 8 simultaneously impact the liquid surface, forming multiple ring-shaped bubble plumes 9 on the liquid surface and below the liquid. Step 4: Run the device for 5-30 minutes until the device's operating status stabilizes, then start the sampling device to collect samples through the aerosol sampling port 10. Step 5: After sampling is completed, first turn off the sampling device, then turn off the water pump 4.

[0041] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A multi-jet salt lake aerosol simulation generator, characterized in that: It includes a generating container (1), a pumping assembly, a diversion device, multiple jet water pipes (6), and an aerosol sampling assembly; Multiple jet water pipes (6) are installed on the top of the generating device container (1), and the outlet end of the jet water pipes (6) is located inside the generating device container (1). The multiple jet water pipes (6) are arranged in a ring array with the axis of the generating device container (1) as the center. The pumping assembly is installed on the generating device container (1). The diversion device has one inlet and multiple outlets. The inlet is connected to the pumping assembly, and the multiple outlets are respectively connected to multiple jet water pipes (6). The outlet ends of the multiple jet water pipes (6) are all set towards the liquid surface inside the generating device container (1), so that multiple jet water streams (8) simultaneously impact the liquid surface and form multiple annular arrays of bubble plumes (9) in the liquid surface and submerged area. Adjacent bubble plumes (9) can partially overlap in the liquid surface and submerged area. The aerosol sampling assembly is installed on the generator container (1); The side wall of the generating device container (1) is also provided with an airflow balance hole (11) for maintaining the airflow balance inside the box during the sampling process.

2. The multi-jet salt lake aerosol simulation generator according to claim 1, characterized in that: The number of jet water pipes (6) is four. The diversion device is a one-to-four diversion device (5). The one-to-four diversion device (5) has one inlet and four outlets. The inlet of the one-to-four diversion device (5) is connected to the outlet of the water pump (4). The four outlets of the one-to-four diversion device (5) are respectively connected to the four jet water pipes (6) through hoses.

3. The multi-jet salt lake aerosol simulation generator according to claim 1, characterized in that: The middle area at the top of the generating device container (1) is provided with a second mounting hole (7). The number of the second mounting holes (7) is the same as the number of jet water pipes (6). The water outlet end of the jet water pipe (6) is inserted into the generating device container (1) through the second mounting hole (7).

4. The multi-jet salt lake aerosol simulation generator according to claim 3, characterized in that: The lower end of the jet water pipe (6) is fixedly connected to a reducing straight connector (12), which is fixedly connected inside the second mounting hole (7). The lower end of the reducing straight connector (12) serves as the outlet end of the jet water pipe (6).

5. The multi-jet salt lake aerosol simulation generator according to claim 1, characterized in that: The pumping assembly includes a pumping pipe (3) and a pumping pump (4). A first mounting hole (2) is provided on the edge area of ​​the top of the generating device container (1). The lower end of the pumping pipe (3) is inserted into the generating device container (1) through the first mounting hole (2). The upper end of the pumping pipe (3) is connected to the pumping pump (4). The pumping pump (4) is connected to the diversion device.

6. The multi-jet salt lake aerosol simulation generator according to claim 5, characterized in that: The water pumping pipe (3) is a flexible hose with an inner diameter of 10 mm, and a filter screen is provided at the water inlet end of the water pumping pipe (3).

7. The multi-jet salt lake aerosol simulation generator according to claim 1, characterized in that: The generating device container (1) has a size of 30×20×30cm. The volume of the salt lake water sample inside the generating device container (1) is 4-5L. The liquid level of the salt lake water sample inside the generating device container (1) is 7-8cm. The water outlet of the jet pipe (6) is 18-22cm from the liquid surface. The total flow rate of the water pump (4) is controlled at 3-6L / min.

8. The multi-jet salt lake aerosol simulation generator according to claim 1, characterized in that: The aerosol sampling assembly includes an aerosol sampling hole (10) opened on one side of the generating device container (1), and the aerosol sampling hole (10) is a hole with a diameter of 10 mm.

9. The multi-jet salt lake aerosol simulation generator according to claim 1, characterized in that: The generating device container (1) is a vertical box assembled from acrylic sheets or glass. The box is closed on all sides, and the top structure of the box can be opened and closed.

10. A method for simulating the generation of aerosols from salt lake water, using a multi-jet salt lake aerosol simulation generator as described in any one of claims 1-9, characterized in that: Includes the following steps: Step 1: Add salt lake water sample to the container (1) of the generating device until the predetermined liquid level is reached; Step 2: Assemble the water pump (3), multiple jet water pipes (6) and sampling device, and make the outlet of the multiple jet water pipes (6) face the liquid surface inside the box; Step 3: Start the water pump (4) so ​​that the salt lake water sample in the generating device container (1) is distributed by the diversion device and ejected by multiple jet water pipes (6). Multiple jet water streams (8) simultaneously impact the liquid surface, forming multiple ring-shaped bubble plumes (9) on the liquid surface and below the liquid. Step 4: Run the device for 5-30 minutes until the device is stable, then start the sampling device to sample through the aerosol sampling hole (10); Step 5: After sampling is completed, first turn off the sampling device, then turn off the water pump (4).

Images