A device for simulating changes in atmospheric metal element particles

Abstract

The present invention relates to a simulation device, and in particular to a device for simulating changes in atmospheric metal element particles. The device comprises a metal element sampling system, an air intake pre-treatment system, a gas regulating system, a central control system, and a cabin structure system, wherein the cabin structure system is the main body, used to provide a closed space and basic structure for the entire device, and the other four systems are all connected to it; the metal element sampling system is used to prepare and add simulated atmospheric metal element particles; the air intake pre-treatment system is used to provide a gas source in the cabin; the gas regulating system is used to regulate the meteorological environment parameters in the cabin; and the central control system is used to coordinate and control the entire simulation device. The present invention can not only prepare simulated atmospheric metal element particles of different forms, but also simulate the corresponding property changes of particles as meteorological environment parameters such as temperature, humidity, wind speed, wind direction, and air pressure change, providing a reference device for the study of atmospheric metal element particles.

Description

Technical Field

[0001] The invention relates to a simulation device, in particular to a simulation device for changes in atmospheric metal element particles. Background Art

[0002] Heavy metals in atmospheric particulate matter are extremely harmful to the human body. Studying the chemical composition of atmospheric particulate matter, particularly the sources and concentrations of potentially harmful metal elements, is of great significance for understanding the relationship between air pollution and human health. Currently, monitoring of metal elements in atmospheric particulate matter primarily relies on a combination of manual sampling and laboratory analysis. Continuous online monitoring of atmospheric metal elements is mostly based on X-ray fluorescence spectroscopy (XRF). While this method can measure most metal elements (30), requires no sample pretreatment, and is relatively fast, it requires an enrichment time of at least 25-30 minutes, and sample uniformity significantly impacts data precision. The sensitivity and dynamic range of these online atmospheric metal analyzers are insufficient to meet the needs of national scientific research and environmental regulation. Developing technologies that overcome these bottlenecks in online atmospheric metal analysis is crucial for comprehensively monitoring the types and concentrations of atmospheric metal elements, comprehensively analyzing pollution sources, and strengthening atmospheric metal pollution monitoring and prevention.

[0003] The development of an online analyzer for atmospheric metal elements requires extensive simulation experiments of atmospheric metal particulate matter. However, existing atmospheric environment simulation devices are primarily designed and developed for the study of organic pollutants in the air. These devices are only suitable for simulating organic pollutants in the atmosphere and are not suitable for simulating and studying atmospheric metal particulate matter. Therefore, there is an urgent need to develop an atmospheric metal particulate matter simulation device to meet the needs of testing and scientific research. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for simulating changes in atmospheric metal element particles to solve the problem of lack of devices for simulating metal element particles in the atmospheric environment raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention provides a device for simulating changes in atmospheric metal element particles, comprising:

[0007] The cabin structure system has a confined space;

[0008] A metal element sampling system is connected to the cabin structure system and is used to prepare and add atmospheric metal element simulated particulate matter;

[0009] The air intake pre-treatment system is connected to the cabin structure system and is used to provide a source of gas inside the cabin;

[0010] The gas regulating system is connected to the cabin structure system and is used to adjust the meteorological environment parameters inside the cabin;

[0011] The central control system is interconnected with the cabin structure system, metal element sampling system, air intake pre-treatment system and gas regulation system. The central control system is used for the overall coordinated control of the simulation device;

[0012] Through the joint operation of the above multiple systems, we can not only prepare simulated atmospheric metal element particles of different forms, but also simulate the corresponding changes in the properties of metal element particles as meteorological environmental parameters change, thereby realizing the simulation research of metal element particles in the atmospheric environment.

[0013] The cabin structure system includes a cabin shell and a cabin liner arranged in the cabin shell. One end of the cabin liner is provided with an inlet and a gas access port, and the other end of the cabin liner is provided with a sampling port. The inlet is connected to the metal element sampling system, and the gas access port is connected to the air intake pre-treatment system.

[0014] The cabin liner is formed by seamlessly welding mirror-finished stainless steel plates as a whole, and the inner wall of the cabin liner is sprayed with a non-absorbent coating.

[0015] The metal element sampling system includes a sampling air pump, a solution storage tank, a metal element particle generator, a solution pipette and a nozzle, wherein the metal element particle generator is connected to the sampling air pump through an interface, the lower end of the solution pipette is inserted into the solution storage tank, and the upper end is connected to the metal element particle generator, and the metal element particle generator is connected to the sampling port of the cabin structure system through the nozzle.

[0016] The air intake pre-treatment system includes a catalytic burner, a purification filter tube and a humidity control device; wherein the exhaust port of the catalytic burner is connected to the humidity control device through the purification filter tube, and the humidity control device is connected to the gas inlet of the cabin structure system.

[0017] The catalytic burner includes a combustion chamber, a cooling pipe and a pressure sensor a. The combustion chamber is connected to one end of the cooling pipe through an exhaust pipe, and the exhaust pipe is provided with a pressure sensor a; the other end of the cooling pipe is connected to the purification filter pipe.

[0018] The humidity regulating device includes a humidifying water tank;

[0019] The humidifying water tank includes a water tank tank, which is provided with an air inlet and an air outlet on the top of the water tank tank, an air guide pipe connected to the air inlet is provided inside the water tank tank, the air guide pipe extends to the bottom of the water tank tank, and a bubble generator is provided at the end, a water baffle is provided horizontally at the upper end of the interior of the water tank tank, and the water baffle is located below the air outlet; a heating rod is provided at the lower end of the interior of the water tank tank, and a water level scale is provided on the side wall of the water tank tank.

[0020] The humidity regulating device further comprises a water supply tank, which is connected to the water tank via a pipeline.

[0021] The gas regulating system includes a heating pipe, a refrigeration compressor and a circulating fan, wherein the heating pipe is closely attached to the outer side of the cabin liner to achieve the regulation of high-temperature parameters inside the cabin liner; the refrigeration compressor is arranged on the outer side of the cabin liner to achieve the regulation of low-temperature parameters inside the cabin liner; the circulating fan is arranged on the side wall of the cabin liner to be used for uniform conduction and diffusion of airflow inside the cabin liner.

[0022] A direction baffle is provided in the cabin inner liner near the gas inlet, and the direction baffle is used to adjust the wind direction in the cabin.

[0023] The advantages and beneficial effects of the present invention are:

[0024] 1. The device for simulating changes in atmospheric metal element particles of the present invention can prepare and add atmospheric metal element particles of different forms or properties through a metal element particle generator, and simulate the corresponding changes in the properties of atmospheric metal element particles as the meteorological environment changes through the overall device, providing special equipment for the study of atmospheric metal element particles and filling the gap in the device for simulating changes in atmospheric metal element particles.

[0025] 2. The air intake pre-treatment system of the atmospheric metal element particulate matter change simulation device of the present invention adopts catalytic combustion and multi-stage filtration technology to purify the gas entering the device, providing a pure and stable air source for the operation of the device and ensuring the accuracy of the metal element particulate matter simulation experiment.

[0026] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0027] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 This is a schematic diagram of the structure of the atmospheric metal element particle change simulation device of the present invention;

[0030] Figure 2 Schematic diagram of the structure of the metal element particle injection system of the present invention;

[0031] Figure 3 Schematic diagram of the structure of the intake air pre-treatment system of the present invention;

[0032] Figure 4 Schematic diagram of the structure of the gas regulating system, central control system and cabin structure system in the present invention;

[0033] Figure 5 It is a structural schematic diagram of the humidifying water tank in the present invention;

[0034] In the figure: 1 is the cabin liner, 2 is the heating pipe, 3 is the direction baffle, 4 is the sealing valve, 5 is the temperature and humidity sensor, 6 is the refrigeration compressor, 7 is the sampling port, 8 is the speed regulating motor, 9 is the control device, 10 is the circulating fan, 11 is the gas inlet, 12 is the air extraction pump, 13 is the humidification water tank, 14 is the water supply tank, 15 is the catalytic burner, 16 is the purification filter tube, 17 is the cooling pipe, 18 is the pressure sensor a, 19 is the combustion chamber, 20 is the electric regulating valve, 21 is the solenoid valve a, 23 is the solenoid valve b, 25 is the sampling port, 26 is the wind speed sensor , 27 is the pressure sensor b, 28 is the cabin cleaning window, 31 is the metal element sampling system, 32 is the air intake pre-treatment system, 33 is the gas regulation system, 34 is the central control system, 35 is the cabin structure system, 41 is the sampling air pump, 42 is the interface, 43 is the metal element solution storage tank, 44 is the metal element particle generator, 45 is the solution pipette, 46 is the nozzle, 51 is the air inlet, 52 is the air outlet, 53 is the water baffle, 54 is the water level scale, 55 is the heating rod, 56 is the bubble generator, 57 is the drain outlet, and 58 is the water tank. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] like Figures 1 to 5As shown: An embodiment of the present invention provides a device for simulating changes in atmospheric metal element particles, comprising a metal element sampling system 31, an air intake pre-treatment system 32, a gas regulating system 33, a central control system 34, and a cabin structure system 35, wherein the cabin structure system 35 has a closed space; the metal element sampling system 31 is connected to the cabin structure system 35, and the metal element sampling system 31 is used to generate simulated atmospheric metal element particles; the air intake pre-treatment system 32 is connected to the cabin structure system 35, and the air intake pre-treatment system 32 is used to provide a gas source in the cabin; the gas regulating system 33 is connected to the cabin structure system 35, and the gas regulating system 33 is used to regulate the meteorological environment parameters in the cabin; the central control system 34 is used to coordinate and control the entire simulation device. Through the joint operation of the above multiple systems, it is possible to prepare simulated atmospheric metal element particles of different forms, and to simulate the corresponding property changes of metal element particles as meteorological environment parameters change, thereby realizing the simulation study of atmospheric metal element particles.

[0037] like Figure 4 As shown, in the embodiment of the present invention, the cabin structure system 35 includes a cabin shell and a cabin liner 1 disposed within the cabin shell. A sample inlet 7 and a gas inlet 11 are provided at one end of the cabin liner 1, and a sampling port 25 is provided at the other end of the cabin liner 1. The sample inlet 7 is connected to the metal element sampling system 31, and the gas inlet 11 is connected to the intake air pre-treatment system 32. A wind speed sensor 26 and a pressure sensor b27 are provided at the sampling port 25.

[0038] Specifically, the cabin liner 1 is constructed from seamlessly welded mirror-finished stainless steel plates. The welds are polished to eliminate distortion, and all edges and corners are curved to a finish of Grade III or higher. The inner wall of the cabin liner 1 is sprayed with a non-absorbent coating to prevent condensation or water droplets from forming on the cabin. A directional baffle 3 is located near the gas inlet 11 within the cabin liner 1 to adjust the airflow direction within the cabin. Specifically, the directional baffle 3 is controlled by a speed-regulating motor 8 located outside the cabin liner 1, enabling control of airflow in different directions. A cabin cleaning window 28 is located on the sidewall of the cabin liner 1, and a temperature and humidity sensor 5 is located within the cabin liner 1.

[0039] like Figure 2As shown, in an embodiment of the present invention, the metal element sampling system 31 includes a sampling air pump 41, a solution storage tank 43, a metal element particle generator 44, a solution pipette 45 and a nozzle 46, wherein the metal element particle generator 44 is connected to the sampling air pump 41 via an interface 42, the lower end of the solution pipette 45 is inserted into the solution storage tank 43, and the upper end is connected to the metal element particle generator 44, and the metal element particle generator 44 is connected to the sampling port 7 of the cabin structure system 35 via a nozzle 46. The metal element sampling system 31 is powered by the sampling air pump 41 for the metal element particles, which eventually enter the cabin from the sampling port 7. The metal element sampling system 31 realizes the preparation and sampling of solid and liquid metal element particles, and realizes the simulation of the real existence form of metal elements in atmospheric particulate matter.

[0040] like Figure 3 As shown, in an embodiment of the present invention, the air intake pre-treatment system 32 includes a catalytic burner 15, a purification filter tube 16 and a humidity control device; wherein the exhaust port of the catalytic burner 15 is connected to the humidity control device through the purification filter tube 16, and the humidity control device is connected to the gas inlet 11 of the cabin structure system 35.

[0041] In an embodiment of the present invention, the catalytic burner 15 includes a combustion chamber 19, a cooling pipe 17 and a pressure sensor a18. The combustion chamber 19 is connected to one end of the cooling pipe 17 through an exhaust pipe, and the exhaust pipe is provided with a pressure sensor a18; the other end of the cooling pipe 17 is connected to the purification filter pipe 16.

[0042] In the embodiment of the present invention, the humidity regulating device includes a humidifying water tank 13; Figure 5 As shown, the humidification water tank 13 includes a water tank 58, which has an air inlet 51 and an air outlet 52 at its top. An air duct is provided in the water tank 58, communicating with the air inlet 51. The air duct extends to the bottom of the water tank 58 and is provided with a bubble generator 56 at its end. A water baffle 53 is provided horizontally at the upper end of the interior of the water tank 58, and the water baffle 53 is located below the air outlet 52. A heating rod 55 is provided at the lower end of the interior of the water tank 58, a water level gauge 54 is provided on the side wall of the water tank 58, and a drain outlet 57 is provided at the bottom of the water tank 58. The air inlet 51 is connected to the purification filter tube 16, which is provided with an electric regulating valve 20 and a solenoid valve a21. The solenoid valve a21 and the electric regulating valve 20 are used to adjust the flow rate of the dry and wet gases, ultimately achieving the adjustment of the humidity of the mixed gas. In other words, the wet gas flow rate is adjusted by controlling the gas flow rate at the air inlet 51. The gas outlet 52 is connected to the gas inlet 11 of the cabin structure system 35 through a pipeline, and a solenoid valve b is provided on the pipeline.

[0043] Furthermore, an air extraction pump 12 is provided on the purification filter tube 16, and the air extraction pump 12 and the pressure sensor b27 realize the adjustment of different pressures in the cabin.

[0044] Furthermore, the humidity control device further includes a water supply tank 14 , which is connected to the water tank 58 via a pipeline.

[0045] The air intake pre-treatment system 32 uses gas treatment devices such as catalytic combustion, multi-stage filtration, and cooling and dehumidification to efficiently purify and filter the air inhaled into the cabin at multiple levels.

[0046] like Figure 4 As shown, in an embodiment of the present invention, the gas regulating system includes a heating pipe 2, a refrigeration compressor 6 and a circulating fan 10, wherein the heating pipe 2 is tightly attached to the outer side of the cabin liner 1 to achieve the regulation of high-temperature parameters in the cabin liner 1; the refrigeration compressor 6 is arranged on the outer side of the cabin liner 1 to achieve the regulation of low-temperature parameters in the cabin liner 1; the circulating fan 10 is arranged on the side wall of the cabin liner 1 to be used for uniform conduction and diffusion of the airflow in the cabin liner 1, thereby achieving uniform conduction and diffusion of temperature.

[0047] The central control system 34 includes a control device 9, edited and controlled by a programmable controller. It collects current and voltage signals via an A / D acquisition module. It also includes a proprietary upper computer software platform that collects, processes, and analyzes temperature, humidity, voltage, and current data, automatically saving the data and generating reports. The software features automatic error reporting, stable operation, and a user-friendly interface.

[0048] The present invention provides an experimental device for simulating the property changes of atmospheric metal particles induced by changes in the meteorological environment. This device, connected and controlled by a central control system, simulates different metal concentrations and meteorological parameters within a chamber. This device can prepare and add atmospheric metal particles of varying forms or properties, and simulate the corresponding property changes of atmospheric metal particles as the meteorological environment changes. This provides a highly simulated and operable device for studying metallic particles in the atmospheric environment.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A device for simulating changes in atmospheric metal element particles, characterized in that: include: A cabin structure system (35) having a confined space; A metal element sampling system (31) is connected to the cabin structure system (35), and the metal element sampling system (31) is used to prepare and add atmospheric metal element simulated particulate matter; An air intake pre-treatment system (32) is connected to the cabin structure system (35), and the air intake pre-treatment system (32) is used to provide a gas source in the cabin; A gas regulating system (33) is connected to the cabin structure system (35), and the gas regulating system (33) is used to regulate meteorological environment parameters in the cabin; A central control system (34) is interconnected with the cabin structure system (35), the metal element sampling system (31), the air intake pre-treatment system (32) and the gas regulation system (33), and the central control system (34) is used for overall coordinated control of the simulation device; Through the joint operation of the above multiple systems, it is possible to prepare simulated atmospheric metal element particles of different forms, and to simulate the corresponding changes in the properties of metal element particles with changes in meteorological environmental parameters, thus realizing the simulation research of atmospheric metal element particles; The gas regulating system (33) comprises a heating pipe (2), a refrigeration compressor (6) and a circulation fan (10), wherein the heating pipe (2) is closely attached to the outer periphery of the cabin liner (1) to achieve the regulation of high-temperature parameters in the cabin liner (1); the refrigeration compressor (6) is arranged on the outer side of the cabin liner (1) to achieve the regulation of low-temperature parameters in the cabin liner (1); and the circulation fan (10) is arranged on the side wall of the cabin liner (1) to uniformly conduct and diffuse the airflow in the cabin liner (1); The metal element sampling system (31) comprises a sampling air pump (41), a solution storage tank (43), a metal element particle generator (44), a solution pipette (45) and a nozzle (46), wherein the metal element particle generator (44) is connected to the sampling air pump (41) via an interface (42), the lower end of the solution pipette (45) is inserted into the solution storage tank (43), and the upper end is connected to the metal element particle generator (44), and the metal element particle generator (44) is connected to the sampling port (7) of the cabin structure system (35) via a nozzle (46); A direction baffle (3) is provided in the cabin inner liner (1) near the gas inlet (11), and the direction baffle (3) is used to adjust the wind direction in the cabin.

2. The atmospheric metal element particle change simulation device according to claim 1, characterized in that: The cabin structure system (35) includes a cabin shell and a cabin liner (1) arranged in the cabin shell. One end of the cabin liner (1) is provided with an injection port (7) and a gas access port (11). The other end of the cabin liner (1) is provided with a sampling port (25). The injection port (7) is connected to the metal element injection system (31), and the gas access port (11) is connected to the air intake pre-treatment system (32).

3. The atmospheric metal element particle change simulation device according to claim 2, characterized in that: The cabin inner liner (1) is made of mirror-finished stainless steel plates that are seamlessly welded as a whole, and the inner wall of the cabin inner liner (1) is sprayed with a non-absorbent coating.

4. The atmospheric metal element particle change simulation device according to claim 1, characterized in that: The air intake pre-treatment system (32) includes a catalytic burner (15), a purification filter tube (16) and a humidity control device; wherein the exhaust port of the catalytic burner (15) is connected to the humidity control device through the purification filter tube (16), and the humidity control device is connected to the gas inlet (11) of the cabin structure system (35).

5. The atmospheric metal element particle change simulation device according to claim 4, characterized in that: The catalytic burner (15) comprises a combustion chamber (19), a cooling pipe (17) and a pressure sensor a (18). The combustion chamber (19) is connected to one end of the cooling pipe (17) through an exhaust pipe, and the exhaust pipe is provided with a pressure sensor a (18); the other end of the cooling pipe (17) is connected to the purification filter pipe (16).

6. The atmospheric metal element particle change simulation device according to claim 4, characterized in that: The humidity regulating device comprises a humidifying water tank (13); The humidifying water tank (13) comprises a water tank (58), the top of the water tank (58) is provided with an air inlet (51) and an air outlet (52), an air guide pipe connected to the air inlet (51) is provided in the water tank (58), the air guide pipe extends to the bottom of the water tank (58), and a bubble generator (56) is provided at the end thereof, a water baffle (53) is provided at the upper end of the interior of the water tank (58) in the horizontal direction, and the water baffle (53) is located below the air outlet (52); a heating rod (55) is provided at the lower end of the interior of the water tank (58), and a water level scale (54) is provided on the side wall of the water tank (58).

7. The atmospheric metal element particle change simulation device according to claim 6, characterized in that: The humidity regulating device further comprises a water supply tank (14), which is connected to the water tank (58) via a pipeline.

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