Highly integrated synchronous simulation multi-pollution source smog chamber system and working method

Abstract

The invention discloses a highly integrated synchronous simulation multi-pollution source smog chamber system and a working method. Comprising a smog chamber, an outer box body, a zero gas generator, a solvent release unit, a biomass combustion furnace, a coal combustion furnace, an automobile exhaust emission collection unit, a temperature regulation and control unit, a humidity regulation and control unit, a plant emission collection unit, a multispectral light source and an industrial personal computer, the smog chamber is a square transparent box body, and the multispectral light source is located outside the smog chamber. The solvent release unit comprises a vacuum storage tank and a solvent beaker; and the vacuum storage tank, the biomass combustion furnace, the coal combustion furnace, the automobile exhaust emission and collection unit and the plant emission and collection unit are also respectively connected with the smog chamber through pipelines. The temperature regulation and control unit comprises a refrigerating unit and an electric heating pipe, and the humidity regulation and control unit, the electric heating pipe and an evaporator of the refrigerating unit are all arranged in the smog chamber. According to the invention, by integrating emission of various pollution sources, the real illumination condition of the environment is accurately simulated, and comprehensive simulation research on variable factors in the atmospheric environment is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of atmospheric environment simulation, and in particular to a highly integrated synchronous simulation multi-pollution source smoke chamber system and a working method. Background Art

[0002] With the continuous acceleration of urbanization and industrialization, my country's atmospheric pollution has gradually evolved from a single pollutant to a complex multi-pollutant mixture. This mixed pollution includes not only traditional particulate matter (such as PM 2.5 and PM 10 ) and gaseous pollutants (such as sulfur dioxide, nitrogen dioxide, ozone, etc.), and also involves the formation of volatile organic compounds (VOCs) and secondary pollutants. This complex pollution has brought new challenges to air quality management and governance. In the field of environmental science and engineering, the smog chamber system is the main tool for studying and simulating the physical and chemical processes of atmospheric pollution. It is used to explore the formation, transformation and removal mechanisms of atmospheric pollutants in order to systematically study the interactions between multiple pollutants and their effects on atmospheric composition.

[0003] As important precursors of aerosols and ozone, the behavior and transformation of VOCs in the atmosphere are also affected by a variety of environmental factors, such as photochemical reactions, temperature and humidity changes, etc. Due to the wide variety of VOCs and their different reactivity, their composition and influence vary significantly in different cities and regions. The diversity of emission sources such as automobile exhaust, solvent use, combustion of biomass and fossil fuels, and biological emissions poses clear challenges to source analysis and the formulation of pollution control strategies.

[0004] The existing technology is mainly limited to the simulation of a single pollution source, ignoring the interaction between different pollution sources and the combined influence of environmental factors. It is difficult to fully simulate the dynamic changes of VOCs, an important precursor of secondary pollutants, under complex environmental conditions. Especially in heavy pollution weather, the accurate prediction and evaluation of environmental factors and their parameters for specific locations are still challenging. Although there are a variety of environmental simulation equipment on the market, which can adjust basic environmental parameters such as temperature and humidity under relatively stable experimental conditions, these devices show obvious limitations when simulating the comprehensive influence of complex environmental parameters (such as meteorological conditions, lighting conditions, and terrain conditions) on the behavior of VOCs at a specific location, ignoring the variable factors in the actual atmospheric environment. The patent with publication number CN115586112A can reproduce the generation and evolution process of aerosols under various extreme meteorological conditions, but its simulation objects and environmental conditions are still limited to the laboratory, and it is impossible to achieve real-time synchronization with the actual atmospheric environment. The patent with publication number CN114917966A expands the scope of research on aerosol behavior under illumination of different wavelengths, making up for the shortcomings of traditional laboratory light source simulation. However, this technology still fails to solve the problem of synchronization with actual atmospheric lighting conditions, nor does it combine a variety of complex meteorological conditions, photochemical reactions and pollutant transformation processes for high-level simulation.

[0005] Existing smog chamber systems still have many limitations in simulating complex meteorological and lighting conditions. First, the system lacks the ability to link with GIS (geographic information system) in real time, resulting in insufficient accuracy and delayed response when processing environmental data at specific locations, limiting the practical applicability of research results. Second, although photochemical smog chambers have made progress in simulating the effects of solar radiation on atmospheric chemical processes, their control over dynamic climate change, especially under low temperature conditions, is still insufficient, limiting the applicability of winter environmental research. Summary of the invention

[0006] In view of the problems existing in the prior art, one purpose of the present invention is to propose a highly integrated synchronous simulation multi-pollution source smog chamber system to solve the problems of the existing smog chamber system in terms of atmospheric environmental pollution, lack of real-time linkage with the GIS geographic information system, resulting in insufficient accuracy and delayed response when processing environmental data of specific locations, and failure to solve the synchronization problem with actual atmospheric lighting conditions, which limits the practical applicability of the research results.

[0007] The present invention adopts the following technical solutions:

[0008] A highly integrated synchronous simulation multi-pollution source smoke box system includes a smoke box, an outer box body, a zero gas generator, a solvent release unit, a biomass combustion furnace, a coal combustion furnace, an automobile exhaust emission collection unit, a temperature control unit, a humidity control unit, a plant emission collection unit, a multi-spectral light source and an industrial computer. The smoke box is a square transparent box body, which is located inside the outer box body, and the multi-spectral light source is located outside the smoke box, and its irradiation direction is toward one side of the smoke box.

[0009] The solvent release unit includes a vacuum storage tank and several solvent beakers placed in the vacuum storage tank. The outlet ends of the zero gas generator and the vacuum storage tank are respectively connected to the smoke box pipeline. The biomass combustion furnace, coal combustion furnace, automobile exhaust emission collection unit and plant emission collection unit are also respectively connected to the smoke box pipeline.

[0010] The automobile exhaust emission collection unit comprises an automobile engine and an exhaust gas collection box, the exhaust port of the automobile engine is connected to the inlet pipeline of the exhaust gas collection box, and the outlet of the exhaust gas collection box is connected to the smoke box pipeline.

[0011] The temperature control unit includes a refrigeration unit and an electric heating tube. The electric heating tube and the evaporator of the refrigeration unit are fixedly installed inside the smoke box. The humidity control unit is arranged inside the smoke box, including a humidifier and a temperature and humidity sensor. The signal end of the temperature and humidity sensor is connected to the industrial computer for communication.

[0012] A pressure-stabilizing valve is arranged on the side wall of the smoke box, and a wind speed simulator is arranged inside the smoke box. In addition, an exhaust pipeline and a sampling pipeline are arranged on the side wall of the smoke box, a first solenoid valve and a first vacuum pump are arranged on the exhaust pipeline, and a sixth solenoid valve is arranged on the sampling pipeline, and its end is connected to a detection instrument.

[0013] Furthermore, the outer box body is a square box body matching the smoke box, a door body is installed on one side wall, six inner walls of the outer box body are provided with insulation layers, and the inner wall of each insulation layer is affixed with a reflective film.

[0014] The smoke box is fixed in the outer box body through a bracket located below the smoke box, and its six side surfaces are respectively arranged parallel to the six side surfaces of the outer box body.

[0015] Furthermore, the vacuum storage tank comprises a sealing cover and a tank body with an open top, wherein the sealing cover is arranged on the top of the tank body to seal the tank body, and a second vacuum pump is arranged on the sealing cover.

[0016] A first pipe is arranged on the upper part of the vacuum storage tank, a first metering pump is arranged on the first pipe, an end of which is connected to the side wall of the smoke box, a second solenoid valve is also arranged on the first pipe, and the second solenoid valve is located between the first metering pump and the smoke box, and the signal ends of the first metering pump and the second solenoid valve are respectively connected to the industrial computer.

[0017] Furthermore, a first smoke collecting box is provided on one side of the biomass combustion furnace, and an air inlet end of the first smoke collecting box is connected to the flue of the biomass combustion furnace through a first air inlet pipe.

[0018] The exhaust end of the first smoke collection box is connected to the side wall of the smoke box through a second pipe. The second pipe is provided with a second metering pump and a third solenoid valve. The third solenoid valve is located between the second metering pump and the smoke box. The signal ends of the second metering pump and the third solenoid valve are respectively connected to the industrial computer.

[0019] Furthermore, a second smoke collecting box is provided on one side of the coal burning furnace, and an air inlet end of the second smoke collecting box is connected to the flue of the coal burning furnace through a second air inlet pipe.

[0020] The exhaust end of the second smoke collection box is connected to the side wall of the smoke box through a third pipe. The third metering pump and the fourth solenoid valve are on the third pipe. The fourth solenoid valve is located between the third metering pump and the smoke box. The signal ends of the third metering pump and the fourth solenoid valve are respectively connected to the industrial computer.

[0021] Furthermore, the plant emission collection unit includes a closed glass house with green plants placed inside, which is connected to the side wall of the smoke box through a fourth pipe, and a check valve is provided on the fourth pipe leading from the closed glass house to the smoke box.

[0022] Furthermore, the air intake end of the exhaust gas collecting box is connected to a third air intake pipe, and the end of the third air intake pipe is located inside the exhaust port of the automobile engine.

[0023] The exhaust end of the exhaust gas collection box is connected to the side wall of the smoke box through the fifth pipe. The fourth metering pump and the fifth solenoid valve are on the fifth pipe. The fifth solenoid valve is located between the fourth metering pump and the smoke box. The signal ends of the fourth metering pump and the fifth solenoid valve are respectively connected to the industrial computer.

[0024] Furthermore, the wind speed simulator adopts an electric fan, which is installed on one inner wall of the smoke box, and the signal end of the electric fan is connected to the industrial computer for communication.

[0025] The refrigeration unit also includes a compressor and a condenser, which are arranged outside the outer box. The compressor, the condenser and the evaporator form a refrigeration cycle system. The signal end of the refrigeration unit is connected to the industrial computer for communication.

[0026] Furthermore, the multi-spectral light source includes a lamp housing, a panel, an ultraviolet light emitting module, an infrared light emitting module and a visible light emitting module. The lamp housing is a disc-shaped sealed shell with a central opening on one side and a mode lens embedded in the opening.

[0027] The panel is fixed to the inner wall of the lamp housing on the side opposite to the mode lens. The ultraviolet light emitting module, infrared light emitting module and visible light emitting module are regularly arranged on the side of the panel close to the mode lens. Each light emitting module is connected to a power supply. In addition, the signal end of each light emitting module is connected to the industrial computer for communication.

[0028] Another object of the present invention is to propose a working method for a synchronous simulation multi-pollution source smoke chamber system, and the specific scheme is as follows.

[0029] The working method of the synchronous simulation multi-pollution source smog box system adopts the above-mentioned highly integrated synchronous simulation multi-pollution source smog box system, and includes the following steps:

[0030] Step 1: Obtain the geographical environment data of the target experimental area within a set time period through the GIS system. The environmental parameters include temperature, light intensity, wind speed and humidity parameters in a certain time period, and input the geographical environment data into the industrial computer.

[0031] Green plants are placed in the plant emission collection unit. Before the test begins, the green plants remain in the plant emission collection unit for at least 24 hours.

[0032] The zero gas generator starts working and opens the exhaust pipe to discharge the gas in the smoke box. After the smoke box is filled with zero gas, the exhaust pipe is closed and the zero gas generator stops supplying gas to the smoke box.

[0033] Step 2: Determine the type of solvent to be used, open the cover of the vacuum storage tank, add the corresponding solvent into each solvent beaker, and then close the cover of the vacuum storage tank.

[0034] The car engine is started, and after the exhaust state of the car engine is stabilized, the exhaust gas collection box collects the car exhaust gas and stores it for future use.

[0035] Biomass fuel and coal are added into the biomass combustion furnace and the coal combustion furnace respectively and ignited, and the smoke generated by the biomass combustion furnace and the coal combustion furnace are collected respectively.

[0036] Step three, pump the volatile gas in the vacuum storage tank into the smoke box, pump the collected automobile exhaust gas and the smoke generated by the material combustion furnace and the coal combustion furnace into the smoke box respectively, and at the same time, pump the gas in the plant emission collection unit into the smoke box, and then disconnect the gas supply to the smoke box.

[0037] Step 4: Turn on the multi-spectral light source to illuminate the smoke. During the illumination process, the industrial computer adjusts the light intensity of the multi-spectral light source according to the geographical environment data.

[0038] Turn on the electric fan and temperature and humidity sensor. The temperature and humidity sensor monitors the temperature and humidity data in the smoke box in real time and sends it to the industrial computer. The industrial computer controls the working status of the electric heating tube, refrigeration unit, humidifier and electric fan according to the temperature and humidity data, so that the temperature, light intensity, wind speed and humidity parameters in the smoke box are consistent with the geographical environment data of the target experimental area.

[0039] Step 5: After the set time, the sampling pipeline is opened, and the gas in the smoke box enters the online monitoring instrument through the sampling pipeline to detect the composition of the sampled gas.

[0040] After that, turn on the zero gas generator and open the exhaust pipe to exhaust the gas in the smoke box.

[0041] Compared with the prior art, the technical solution of the present invention has the following beneficial effects: the present invention realizes a comprehensive simulation of VOCs emissions from natural and anthropogenic sources by integrating a variety of emission systems, including solvent release, biomass and coal combustion, automobile simulation and biological emission collection. The method comprehensively considers the interaction between different pollution sources and the composite influence of environmental factors, so as to more accurately simulate the emission and diffusion of VOCs in the actual environment, and accurately reproduce the pollution dynamics in a complex environment, providing a scientific basis for formulating effective pollution control strategies. Through an efficient refrigeration unit and an environmental control system, it is ensured that the temperature, humidity and wind speed in the box can be accurately adjusted to the required state, so as to realize accurate control of the temperature, humidity and wind speed in the environmental simulation box. The system integrates an advanced environmental parameter control system and is connected to an external computer integrated control system, and can receive and process location information from a specific location in real time based on the environmental parameters of a geographic information system (GIS). The intelligent algorithm in the system can automatically adjust the environmental conditions in the smoke box according to the received location information, and accurately simulate the actual pollution conditions in different geographical areas. In this way, the present invention can realize a high degree of simulation of a multi-pollution source smoke box system in a complex environment, and provide important technical support for environmental monitoring and pollution control research. The multi-spectral light source has the ability to accurately simulate illumination. By analyzing GIS data, it dynamically controls the brightness output of each light-emitting module. Each light-emitting module uses pulse width modulation technology to emit light independently or in combination to adjust the proportion of different spectral components. The pattern lens adjusts its shape or position to focus and change the incident angle of light, achieving accurate simulation of illumination conditions in different time periods and environments to meet complex experimental needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a structural schematic diagram of a highly integrated synchronous simulation multi-pollution source smoke chamber system of the present invention.

[0043] Figure 2 It is a structural schematic diagram of a part of the present invention, showing a multi-spectral light source and an industrial computer. DETAILED DESCRIPTION

[0044] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments:

[0045] Embodiment 1, combination Figure 1 and Figure 2 A highly integrated synchronous simulation multi-pollution source smoke box system includes a smoke box 1, an outer box 11, a zero gas generator 2, a solvent release unit, a biomass combustion furnace 3, a coal combustion furnace 4, an automobile exhaust emission collection unit, a temperature control unit, a humidity control unit, a plant emission collection unit, a multi-spectral light source 5 and an industrial computer 6. The smoke box 1 is a square transparent box, which is located inside the outer box 11. The outer box 11 is a square box that matches the smoke box 1. A door body is installed on one side wall. The six inner walls of the outer box 11 are provided with insulation layers, and the inner walls of each insulation layer are affixed with reflective film.

[0046] The smoke box 1 is fixed in the outer box body 11 by a bracket located below it, and its six side surfaces are respectively arranged in parallel with the six side surfaces of the outer box body 11. In addition, an exhaust pipeline 12 and a sampling pipeline 13 are arranged on the side wall of the smoke box 1, and a first electromagnetic valve 121 and a first vacuum pump 122 are arranged on the exhaust pipeline 12. A sixth electromagnetic valve 131 is arranged on the sampling pipeline 13, and its end can be connected to a detection instrument.

[0047] The multi-spectral light source 5 is located outside the smoke box 1, and its irradiation direction is toward one side of the smoke box 1. Specifically, the multi-spectral light source 5 includes a lamp housing 51, a panel 52, an ultraviolet light emitting module, an infrared light emitting module and a visible light emitting module, and the lamp housing 51 is a disc-shaped sealed shell with a central opening on one side and a mode lens 53 embedded in the opening.

[0048] The panel 52 is fixed to the inner wall of the lamp housing 51 on the side opposite to the mode lens 53. The ultraviolet light emitting module, infrared light emitting module and visible light emitting module are regularly arranged on the side of the panel 52 close to the mode lens 53. Each light emitting module is connected to a power supply, and the signal end of each light emitting module is communicated with an industrial computer. The industrial computer controls the light intensity of each light emitting module according to the light intensity change of the geographic environment data obtained through the GIS system so that the parallel light emitted by the multi-spectral light source 5 through the mode lens 53 is consistent with the light conditions in the area.

[0049] The solvent release unit includes a vacuum storage tank 61 and a plurality of solvent beakers 62 placed in the vacuum storage tank 61, each solvent beaker 62 is filled with a different solvent, such as acetone, toluene, etc. The outlet ends of the zero gas generator 2 and the vacuum storage tank 61 are respectively connected to the pipeline of the smoke box 1. The vacuum storage tank 61 includes a sealing cover and a tank body with an open top. The sealing cover is arranged on the top of the tank body to seal the tank body. In addition, a second vacuum pump 611 is arranged on the sealing cover. After the solvent is placed in the vacuum storage tank 61 and sealed by the sealing cover, the vacuum storage tank 61 is evacuated by the second vacuum pump 611 to accelerate the volatilization of the solvent, so that the organic solvent volatilized by the solvent quickly fills the vacuum storage tank 61.

[0050] A first pipe 63 is provided on the upper part of the vacuum storage tank 61, and a first metering pump 64 is provided on the first pipe 63, and an end of the first pipe 63 is connected to the side wall of the smoke box 1. A second solenoid valve 65 is also provided on the first pipe 63, and the second solenoid valve 65 is located between the first metering pump 64 and the smoke box 1. The signal ends of the first metering pump 64 and the second solenoid valve 65 are respectively connected to the industrial computer 6.

[0051] The biomass combustion furnace 3, the coal combustion furnace 4, the automobile exhaust emission collection unit and the plant emission collection unit are also respectively connected to the pipeline of the smoke box 1. Specifically, a first smoke collection box 31 is provided on one side of the biomass combustion furnace 3, and the air inlet end of the first smoke collection box 31 is connected to the flue of the biomass combustion furnace 3 through a first air inlet pipe 32. The first smoke collection box 31 collects and stores the smoke generated by the biomass combustion furnace 3, and the smoke in the first smoke collection box 31 maintains a consistent concentration and enters the smoke box 1 at a constant concentration.

[0052] The exhaust end of the first smoke collection box 31 is connected to the side wall of the smoke box 1 through the second pipe 33, and the second metering pump 34 and the third solenoid valve 35 are on the second pipe 33. The third solenoid valve 35 is located between the second metering pump 34 and the smoke box 1, and the signal ends of the second metering pump 34 and the third solenoid valve 35 are respectively connected to the industrial computer 6.

[0053] A second smoke collecting box 41 is provided on one side of the coal burning furnace 4, and an air inlet end of the second smoke collecting box 41 is connected to the flue of the coal burning furnace 4 through a second air inlet pipe 42. The second smoke collecting box 41 collects and stores the smoke generated by the coal burning furnace 4, and the smoke in the second smoke collecting box 41 maintains a consistent concentration and enters the smoke box 1 at a constant concentration.

[0054] The exhaust end of the second smoke collection box 41 is connected to the side wall of the smoke box 1 through the third pipe 43, and the third metering pump 44 and the fourth solenoid valve 45 are on the third pipe 43. The fourth solenoid valve 45 is located between the third metering pump 44 and the smoke box 1, and the signal ends of the third metering pump 44 and the fourth solenoid valve 45 are respectively connected to the industrial computer 6.

[0055] The plant emission collection unit includes a sealed glass room 7, in which green plants are placed. The sealed glass room 7 is connected to the side wall of the smoke box 1 through a fourth pipe 71. The fourth pipe 71 is provided with a check valve 72 leading from the sealed glass room 7 to the smoke box 1.

[0056] The automobile exhaust emission collection unit includes an automobile engine 8 and an exhaust gas collection box 81. The exhaust port of the automobile engine 8 is connected to the inlet pipeline of the exhaust gas collection box 81, and the outlet of the exhaust gas collection box 81 is connected to the pipeline of the smoke box 1. The air inlet end of the exhaust gas collection box 81 is connected to a third air inlet pipe 82, and the end of the third air inlet pipe 82 is located inside the exhaust port of the automobile engine 8. The exhaust gas collection box 81 collects and stores the exhaust gas generated by the automobile engine 8, and the exhaust gas in the exhaust gas collection box 81 maintains a consistent concentration, so that the exhaust gas enters the smoke box 1 at a constant concentration.

[0057] The exhaust end of the exhaust gas collection box 81 is connected to the side wall of the smoke box 1 through the fifth pipe 83. The fourth metering pump 84 and the fifth solenoid valve 85 are on the fifth pipe 83. The fifth solenoid valve 85 is located between the fourth metering pump 84 and the smoke box 1. The signal ends of the fourth metering pump 84 and the fifth solenoid valve 85 are respectively connected to the industrial computer 6.

[0058] A pressure regulating valve is provided on the side wall of the smoke box 1. A wind speed simulator is provided inside the smoke box 1. The wind speed simulator adopts an electric fan 91, which is installed on one inner wall of the smoke box 1. The signal end of the electric fan is connected to the industrial computer for communication. The industrial computer controls the speed of the electric fan 91 to simulate the gas flow speed inside the smoke box 1 and keep it consistent with the wind speed of the external atmospheric environment.

[0059] The temperature control unit includes a refrigeration unit and an electric heating tube 92. The electric heating tube 92 and the evaporator of the refrigeration unit are fixedly installed between the inside of the smoke box 1. The working state of the electric heating tube 92 is automatically controlled by the industrial computer. The refrigeration unit also includes a compressor and a condenser. The compressor and the condenser are arranged outside the outer box 11. The compressor, the condenser and the evaporator form a refrigeration cycle system. The signal end of the refrigeration unit is connected to the industrial computer for communication. The industrial computer controls the working state of the refrigeration unit according to the internal temperature data of the smoke box 1 collected by the temperature and humidity sensor 94.

[0060] The humidity control unit is arranged inside the smoke box 1, including a humidifier 93 and a temperature and humidity sensor 94. The signal end of the temperature and humidity sensor 94 is connected to the industrial computer 6 for communication. The temperature and humidity sensor 94 collects the temperature data and humidity data inside the smoke box 1 in real time and sends them to the industrial computer 6. The industrial computer 6 controls the working states of the refrigeration unit, the electric heating tube 92 and the humidifier 93 according to the geographical environment data obtained through the GIS system, so that the temperature and humidity in the smoke box 1 are consistent with the geographical environment data.

[0061] Embodiment 2, combined Figure 1 and Figure 2 A method for operating a synchronous simulation multi-pollution source smoke chamber system is disclosed. The method adopts a highly integrated synchronous simulation multi-pollution source smoke chamber system described in Example 1, and comprises the following steps:

[0062] Step 1: Obtain geographical environment data of the target experimental area within a set time period through the GIS system. Environmental parameters include temperature, light intensity, wind speed and humidity parameters in a certain time period, and input the geographical environment data into the industrial computer 6.

[0063] Green plants are placed in the plant emission collection unit. Before the test begins, the green plants remain in the plant emission collection unit for at least 24 hours.

[0064] The zero gas generator 2 starts to work and opens the exhaust pipe 12 to discharge the gas in the smoke box 1. After the smoke box 1 is filled with zero gas, the exhaust pipe 12 is closed and the zero gas generator 2 stops supplying gas to the smoke box 1.

[0065] Step 2: Determine the type of solvent to be used, open the cover of the vacuum storage tank 61, add the corresponding solvent into each solvent beaker 62, and then close the cover of the vacuum storage tank 61. The type of solvent is determined according to the requirements of the simulation experiment, and each solvent is placed in a solvent beaker 62.

[0066] The automobile engine 8 is started, and after the exhaust state of the automobile engine 8 is stabilized, the exhaust gas collecting box 81 collects the automobile exhaust gas and stores it for standby use.

[0067] Biomass fuel and coal are added into the biomass combustion furnace 3 and the coal combustion furnace 4 respectively and ignited, and the smoke generated by the biomass combustion furnace and the coal combustion furnace 4 are collected respectively.

[0068] Step three, pump the volatile gas in the vacuum storage tank 61 to the smoke box 1, and pump the collected automobile exhaust gas and the smoke generated by the material combustion furnace and the coal combustion furnace 4 to the smoke box 1 respectively. At the same time, pump the gas in the plant emission collection unit into the smoke box 1, and then disconnect the gas supply to the smoke box 1.

[0069] Step 4: Turn on the multi-spectral light source 5 to illuminate the smoke. During the illumination process, the industrial computer 6 adjusts the light intensity of the multi-spectral light source 5 according to the geographical environment data.

[0070] The electric fan 91 and the temperature and humidity sensor 94 are turned on. The temperature and humidity sensor 94 monitors the temperature and humidity data in the smoke box 1 in real time and sends them to the industrial computer 6. The industrial computer 6 controls the working states of the electric heating tube 92, the refrigeration unit, the humidifier 93 and the electric fan 91 according to the temperature and humidity data, so that the temperature, light intensity, wind speed and humidity parameters in the smoke box 1 are consistent with the geographical environment data of the target experimental area.

[0071] Step 5: After the set time, the sampling line 13 is opened, and the gas in the smoke box 1 enters the online monitoring instrument through the sampling line 13 to detect the composition of the sampled gas. After that, the zero gas generator 2 is turned on and the exhaust line 12 is opened to exhaust the gas in the smoke box 1.

[0072] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A highly integrated synchronous simulation multi-pollution source smoke chamber system, characterized in that: It includes a smoke box, an outer box, a zero gas generator, a solvent release unit, a biomass combustion furnace, a coal combustion furnace, an automobile exhaust emission collection unit, a temperature control unit, a humidity control unit, a plant emission collection unit, a multi-spectral light source and an industrial computer. The smoke box is a square transparent box, which is located inside the outer box. The multi-spectral light source is located outside the smoke box, and its irradiation direction is toward one side of the smoke box. The solvent release unit includes a vacuum storage tank and a plurality of solvent beakers placed in the vacuum storage tank. The outlet ends of the zero gas generator and the vacuum storage tank are respectively connected to the smoke box pipeline. The biomass combustion furnace, the coal combustion furnace, the automobile exhaust emission collection unit and the plant emission collection unit are also respectively connected to the smoke box pipeline. The automobile exhaust emission collection unit comprises an automobile engine and an exhaust gas collection box, the exhaust port of the automobile engine is connected to the inlet pipeline of the exhaust gas collection box, and the outlet of the exhaust gas collection box is connected to the smoke box pipeline; The temperature control unit includes a refrigeration unit and an electric heating tube, wherein the electric heating tube and the evaporator of the refrigeration unit are fixedly installed inside the smoke box, and the humidity control unit is arranged inside the smoke box, including a humidifier and a temperature and humidity sensor, wherein the signal end of the temperature and humidity sensor is connected to the industrial computer for communication; A pressure-stabilizing valve is arranged on the side wall of the smoke box, and a wind speed simulator is arranged inside the smoke box. In addition, an exhaust pipeline and a sampling pipeline are arranged on the side wall of the smoke box, a first solenoid valve and a first vacuum pump are arranged on the exhaust pipeline, and a sixth solenoid valve is arranged on the sampling pipeline, and its end is connected to a detection instrument.

2. A highly integrated synchronous simulation multi-pollution source smoke chamber system according to claim 1, characterized in that: The outer box is a square box that matches the smoke box, with a door installed on one side wall. The six inner walls of the outer box are all provided with insulation layers, and the inner wall of each insulation layer is affixed with a reflective film; The smoke box is fixed in the outer box body through a bracket located below the smoke box, and its six side surfaces are respectively arranged parallel to the six side surfaces of the outer box body.

3. A highly integrated synchronous simulation multi-pollution source smoke chamber system according to claim 1, characterized in that: The vacuum storage tank comprises a sealing cover and a tank body with an open top, wherein the sealing cover is arranged on the top of the tank body to seal the tank body, and a second vacuum pump is arranged on the sealing cover; A first pipe is arranged on the upper part of the vacuum storage tank, a first metering pump is arranged on the first pipe, an end of which is connected to the side wall of the smoke box, a second solenoid valve is also arranged on the first pipe, and the second solenoid valve is located between the first metering pump and the smoke box, and the signal ends of the first metering pump and the second solenoid valve are respectively connected to the industrial computer.

4. A highly integrated synchronous simulation multi-pollution source smoke chamber system according to claim 1, characterized in that: A first smoke collecting box is provided on one side of the biomass combustion furnace, and an air inlet end of the first smoke collecting box is connected to the flue of the biomass combustion furnace through a first air inlet pipe; The exhaust end of the first smoke collection box is connected to the side wall of the smoke box through a second pipe. The second pipe is provided with a second metering pump and a third solenoid valve. The third solenoid valve is located between the second metering pump and the smoke box. The signal ends of the second metering pump and the third solenoid valve are respectively connected to the industrial computer.

5. The highly integrated synchronous simulation multi-pollution source smoke chamber system according to claim 1, characterized in that: A second smoke collecting box is provided on one side of the coal burning furnace, and an air inlet end of the second smoke collecting box is connected to the flue of the coal burning furnace through a second air inlet pipe; The exhaust end of the second smoke collection box is connected to the side wall of the smoke box through a third pipe. The third metering pump and the fourth solenoid valve are on the third pipe. The fourth solenoid valve is located between the third metering pump and the smoke box. The signal ends of the third metering pump and the fourth solenoid valve are respectively connected to the industrial computer.

6. A highly integrated synchronous simulation multi-pollution source smoke chamber system according to claim 1, characterized in that: The plant emission collection unit comprises a sealed glass room, in which green plants are placed, and the sealed glass room is connected to the side wall of the smoke box through a fourth pipe, and a check valve leading from the sealed glass room to the smoke box is provided on the fourth pipe.

7. The highly integrated synchronous simulation multi-pollution source smoke chamber system according to claim 1, characterized in that: The air inlet end of the exhaust gas collecting box is connected to a third air inlet pipe, and the end of the third air inlet pipe is located inside the exhaust port of the automobile engine; The exhaust end of the exhaust gas collection box is connected to the side wall of the smoke box through the fifth pipe. The fourth metering pump and the fifth solenoid valve are on the fifth pipe. The fifth solenoid valve is located between the fourth metering pump and the smoke box. The signal ends of the fourth metering pump and the fifth solenoid valve are respectively connected to the industrial computer.

8. The highly integrated synchronous simulation multi-pollution source smoke chamber system according to claim 1, characterized in that: The wind speed simulator uses an electric fan, which is installed on one inner wall of the smoke box, and the signal end of the electric fan is connected to the industrial computer for communication; The refrigeration unit also includes a compressor and a condenser, which are arranged outside the outer box. The compressor, the condenser and the evaporator form a refrigeration cycle system. The signal end of the refrigeration unit is connected to the industrial computer for communication.

9. The highly integrated synchronous simulation multi-pollution source smoke chamber system according to claim 1, characterized in that: The multi-spectral light source comprises a lamp housing, a panel, an ultraviolet light emitting module, an infrared light emitting module and a visible light emitting module. The lamp housing is a disc-shaped sealed shell with a central opening on one side and a mode lens embedded in the opening. The panel is fixed to the inner wall of the lamp housing on the side opposite to the mode lens. The ultraviolet light emitting module, infrared light emitting module and visible light emitting module are regularly arranged on the side of the panel close to the mode lens. Each light emitting module is connected to a power supply, and the signal end of each light emitting module is connected to the industrial computer for communication.

10. The working method of the synchronous simulation multi-pollution source smoke chamber system is characterized in that: A highly integrated synchronous simulation multi-pollution source smoke chamber system as claimed in any one of claims 1 to 9 is used, comprising the following steps: Step 1: Obtain the geographical environment data of the target experimental area within a set time period through the GIS system. The environmental parameters include temperature, light intensity, wind speed and humidity parameters in a certain time period, and input the geographical environment data into the industrial computer; Place green plants in the plant emission collection unit. Before the test begins, the green plants remain in the plant emission collection unit for at least 24 hours; The zero gas generator starts to work and opens the exhaust pipe to discharge the gas in the smoke box. After the smoke box is filled with zero gas, the exhaust pipe is closed and the zero gas generator stops supplying gas to the smoke box. Step 2, determine the type of solvent to be used, open the cover of the vacuum storage tank, add the corresponding solvent into each solvent beaker, and then close the cover of the vacuum storage tank; Start the car engine, and after the exhaust state of the car engine is stable, the exhaust gas collection box collects the car exhaust gas and stores it for backup; Adding biomass fuel and coal into the biomass combustion furnace and igniting them respectively, and collecting the flue gas generated by the biomass combustion furnace and the coal combustion furnace respectively; Step 3: Pump the volatile gas in the vacuum storage tank to the smoke box, pump the collected automobile exhaust gas and the smoke generated by the material combustion furnace and the coal combustion furnace to the smoke box respectively, and at the same time, pump the gas in the plant emission collection unit into the smoke box, and then disconnect the gas supply to the smoke box; Step 4: Turn on the multi-spectral light source to irradiate the smoke. During the irradiation process, the industrial computer adjusts the light intensity of the multi-spectral light source according to the geographical environment data. Turn on the electric fan and temperature and humidity sensor. The temperature and humidity sensor monitors the temperature and humidity data in the smoke box in real time and sends it to the industrial computer. The industrial computer controls the working status of the electric heating tube, refrigeration unit, humidifier and electric fan according to the temperature and humidity data, so that the temperature, light intensity, wind speed and humidity parameters in the smoke box are consistent with the geographical environment data of the target experimental area; Step 5: After the set time, the sampling pipeline is opened, and the gas in the smoke box enters the online monitoring instrument through the sampling pipeline to detect the composition of the sampled gas; After that, turn on the zero gas generator and open the exhaust pipe to exhaust the gas in the smoke box.

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