Condensable particulate matter condensation simulation system and use method thereof

Abstract

The invention relates to the technical field of environmental protection, and discloses a condensable particulate matter condensation simulation system and a use method thereof.The simulation system comprises a flue gas generation unit, a condensation simulation unit and a tail gas treatment unit; the flue gas generation unit is used for preparing flue gas; the condensation simulation unit comprises a sample introduction pipeline, a reaction chamber, a sampling pipeline and a condensate filtering device which are connected in sequence, and further comprises an environmental condition simulation device and an environmental condition detection device which are arranged in the reaction chamber; a flue gas outlet of the flue gas generation unit is communicated with an inlet of the sample introduction pipeline, and a gas outlet of the condensate filtering device is communicated with an inlet of the tail gas treatment unit. Due to the fact that the condensation simulation system for the condensable particulate matter can simulate the condensation process of the condensable particulate matter under various environmental conditions, the incidence relation between the various environmental conditions and the condensation amount of the condensable particulate matter can be determined; condensation of the condensable particles in the atmospheric environment can be effectively controlled based on the association relationships.

Description

Technical Field

[0001] The present application relates to the field of environmental protection technology, and in particular to a condensable particle condensation simulation system and a method for using the condensable particle condensation simulation system. Background Art

[0002] Condensable particulate matter (CPM) is part of the flue gas. It is usually in a gaseous state in the flue. After leaving the flue and being released into the atmosphere, it will condense into a liquid or solid state. It is one of the causes of haze. In addition, since CPM is a gaseous pollutant in the flue, commonly used dust removal devices (such as electrostatic precipitators, bag filters, etc.) cannot effectively remove CPM, resulting in a high CPM content in the flue gas discharged into the atmosphere, greatly increasing the probability of haze formation and causing great harm to human health. Therefore, it is very important to control the condensation of CPM in the atmospheric environment and avoid or reduce the condensation of CPM in the atmospheric environment.

[0003] However, there are many factors that affect the condensation of CPM in the atmospheric environment. Currently, there are no relevant technical means to study the formation conditions of CPM condensation in the atmospheric environment, resulting in the inability to effectively control the condensation of CPM in the atmospheric environment. Summary of the invention

[0004] The purpose of this application is to overcome the problem in the prior art that the condensation of CPM in the atmospheric environment cannot be effectively controlled, and to provide a condensable particulate matter condensation simulation system and a method of using the same.

[0005] In order to achieve the above-mentioned object, the first aspect of the present application provides a condensable particulate matter condensation simulation system, the condensable particulate matter condensation simulation system comprising a smoke generating unit, a condensation simulation unit and an exhaust gas treatment unit; the smoke generating unit is used to prepare smoke; the condensation simulation unit comprises an inlet pipeline, a reaction chamber, a sampling pipeline and a condensate filtering device connected in sequence, and an environmental condition simulation device and an environmental condition detection device arranged in the reaction chamber; The smoke outlet of the smoke generating unit is communicated with the inlet of the sampling pipeline, and the gas outlet of the condensate filtering device is communicated with the inlet of the tail gas treatment unit.

[0006] In an embodiment of the present application, the environmental condition simulation device includes a light generating device and a heating device, and the environmental condition detection device includes a temperature detection device and a humidity detection device.

[0007] In an embodiment of the present application, the condensation simulation unit further includes a turbulence fan, and the turbulence fan is disposed in the reaction chamber.

[0008] In an embodiment of the present application, the condensation simulation unit further includes an exhaust gas exhaust pipeline, an inlet of the exhaust gas exhaust pipeline is connected to the reaction chamber, and an outlet of the exhaust gas exhaust pipeline is connected to the inlet of the exhaust gas treatment unit.

[0009] In the embodiment of the present application, the condensate filtering device comprises a condensate filtering membrane, and the pore size of the condensate filtering membrane is 0.1 μm-2.5 μm.

[0010] In an embodiment of the present application, the flue gas generating unit includes a premixing furnace, a flue gas heating furnace and gas storage devices corresponding to multiple gases; the outlet of each gas storage device is connected to the inlet of the premixing furnace, the outlet of the premixing furnace is connected to the inlet of the flue gas heating furnace, and the outlet of the flue gas heating furnace is connected to the inlet of the sampling pipeline.

[0011] In an embodiment of the present application, the gas storage device includes a gas storage device corresponding to nitrogen, and the flue gas generating unit also includes a humidity generator. The outlet of the gas storage device corresponding to nitrogen is connected to the inlet of the humidity generator, and the outlet of the humidity generator is connected to the inlet of the premixing furnace.

[0012] In an embodiment of the present application, the gas storage device also includes gas storage devices corresponding to oxygen, sulfur dioxide, nitrogen oxides and ammonia, respectively.

[0013] In an embodiment of the present application, the exhaust gas treatment unit includes an exhaust gas absorber, a dryer, a flow meter and a suction pump connected in sequence; the gas outlet of the condensate filtering device is connected to the inlet of the exhaust gas absorber.

[0014] A second aspect of the present application provides a method for using the above-mentioned condensable particulate matter condensation simulation system, the method comprising: exhausting the exhaust gas in the reaction chamber; Introducing nitrogen and oxygen into the reaction chamber through the smoke generating unit, and controlling the temperature in the premixing furnace in the smoke generating unit to a first preset temperature, the temperature in the smoke heating furnace in the smoke generating unit to a second preset temperature, the temperature in the reaction chamber to a third preset temperature, and the humidity in the reaction chamber to a preset humidity; Flue gas is introduced into the reaction chamber through the flue gas generating unit, and after a first preset time period, the condensate filter membrane in the condensate filter device is detected.

[0015] Through the above-mentioned condensable particulate matter condensation simulation system, the condensable particulate matter condensation simulation system includes a smoke generating unit, a condensation simulation unit and an exhaust gas treatment unit; the smoke generating unit is used to prepare smoke; the condensation simulation unit includes an inlet pipeline, a reaction chamber, a sampling pipeline and a condensate filter device connected in sequence, and includes an environmental condition simulation device and an environmental condition detection device arranged in the reaction chamber; the smoke outlet of the smoke generating unit is connected to the inlet of the inlet pipeline, and the gas outlet of the condensate filter device is connected to the inlet of the exhaust gas treatment unit. Since the condensable particulate matter condensation simulation system provided in the embodiment of the present application can simulate the condensation process of condensable particulate matter under various environmental conditions, and then can determine the correlation between various environmental conditions and the condensation amount of condensable particulate matter, so that the condensation of CPM in the atmospheric environment can be effectively controlled based on these correlations.

[0016] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. In the accompanying drawings: Figure 1 The schematic diagram of the structure of a condensable particulate matter condensation simulation system according to an embodiment of the present application is shown; Figure 2 A schematic flow chart of a method for using a condensable particle condensation simulation system is shown schematically.

[0018] Description of Reference Numerals 1—Flue gas generating unit; 11—Gas storage device corresponding to nitrogen; 12—Gas storage device corresponding to oxygen; 13—Gas storage device corresponding to pollutant gas; 14—Humidity generator; 15—Premixing furnace; 16—Flue gas heating furnace; 2—Condensation simulation unit; 21—Inlet gas collecting plate; 22—Reaction chamber; 23—Sampling gas collecting plate; 3—Exhaust gas treatment unit; 31—Exhaust gas absorber; 32—Dryer; 33—Flow meter; 34—Suction pump. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the specific implementation methods described herein are only used to illustrate and explain the embodiments of the present application, and are not used to limit the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0020] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), such directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0022] As described in the background technology, condensable particulate matter (CPM) is a part of the flue gas, which is usually in a gaseous state in the flue. After leaving the flue and being released into the atmosphere, it will condense into a liquid or solid state, which is one of the causes of haze. In addition, since CPM is a gaseous pollutant in the flue, commonly used dust removal devices (such as electrostatic precipitators, bag filters, etc.) cannot effectively remove CPM, resulting in a high CPM content in the flue gas discharged into the atmosphere, greatly increasing the probability of haze formation, and causing great harm to human health. Therefore, it is very important to control the condensation of CPM in the atmospheric environment and avoid or reduce the condensation of CPM in the atmospheric environment. However, there are many factors that affect the condensation of CPM in the atmospheric environment. At present, there is no relevant technical means to study the formation conditions of CPM condensation in the atmospheric environment, resulting in the inability to effectively control the condensation of CPM in the atmospheric environment.

[0023] In view of this, in one embodiment of the present application, a condensable particulate matter condensation simulation system is provided, which can be used to simulate the condensation process of condensable particulate matter in flue gas in the atmospheric environment, and obtain the influence of various environmental conditions on the condensation of condensable particulate matter. Figure 1 As shown, the condensable particulate matter condensation simulation system may include a smoke generating unit 1, a condensation simulation unit 2 and an exhaust gas treatment unit 3; the smoke generating unit 1 is used to prepare smoke; the condensation simulation unit 2 includes an inlet pipeline, a reaction chamber 22, a sampling pipeline and a condensate filter device (not shown in the figure) connected in sequence, and includes an environmental condition simulation device (not shown in the figure) and an environmental condition detection device (not shown in the figure) arranged in the reaction chamber 22; the smoke outlet of the smoke generating unit 1 is connected to the inlet of the inlet pipeline, and the gas outlet of the condensate filter device is connected to the inlet of the exhaust gas treatment unit 3.

[0024] In the embodiment of the present application, the flue gas generating unit 1 can be used to prepare flue gas with the same or similar composition as the actual flue gas of a coal-fired power plant. In order to prepare such flue gas, the flue gas generating unit 1 can include a premixing furnace 15, a flue gas heating furnace 16, and gas storage devices corresponding to a plurality of gases, the outlets of each gas storage device are connected to the inlet of the premixing furnace 15, the outlet of the premixing furnace 15 is connected to the inlet of the flue gas heating furnace 16, and the outlet of the flue gas heating furnace 16 is connected to the inlet of the sampling pipeline.

[0025] The gas storage devices corresponding to the various gases may include nitrogen (N 2 ) corresponding gas storage device 11, oxygen (O 2 ) and gas storage devices 12 corresponding to other pollutant gases, such as sulfur dioxide (SO 2 ), nitrogen oxides (NO X ) and ammonia (NH 3 ) and other corresponding gas storage devices. In practical applications, the outlets of each gas storage device can be connected to a proton flow meter, so that the flow of each gas can be accurately controlled and the changes in flue gas composition can be monitored in real time.

[0026] In the process of preparing flue gas, the temperature in the premixing furnace 15 is lower than the temperature in the flue gas heating furnace 16. Specifically, the temperature in the premixing furnace 15 can be 140°C to 160°C (preferably around 150°C), and the temperature in the flue gas heating furnace 16 can be 350°C to 500°C (corresponding to the temperature of the actual flue gas in a coal-fired power plant). Among them, the premixing furnace 15 can be used to preliminarily mix the input gases to obtain a mixed gas, and the mixed gas further enters the flue gas heating furnace 16 for mixing and reaction to obtain flue gas. By arranging the premixing furnace 15 before the flue gas heating furnace 16 to premix various gases, the mixing and reaction process in the subsequent flue gas heating furnace 16 can be more complete, which is conducive to generating flue gas with the same or similar components as the actual flue gas of a coal-fired power plant.

[0027] In the embodiment of the present application, the condensation simulation unit 2 can be used to simulate the condensation process of condensable particles in the flue gas in the atmospheric environment.

[0028] In the condensation simulation unit 2, the sampling pipeline can be specifically a sampling gas collecting plate 21. By setting the sampling pipeline in the form of the sampling gas collecting plate 21, on the one hand, the process of flue gas entering the reaction chamber 22 can be controlled to simulate the process of flue gas in the flue being released into the atmosphere, and on the other hand, the speed of flue gas entering the reaction chamber 22 can be slowed down to a certain extent, which is conducive to the uniform distribution of flue gas in the reaction chamber 22.

[0029] In practical applications, to further ensure that the flue gas can be evenly distributed in the reaction chamber 22, the condensation simulation unit 2 may further include a turbulence fan (not shown in the figure). The turbulence fan may be a magnetic levitation turbulence fan, which may be arranged in the reaction chamber 22, specifically at the bottom of the reaction chamber 22.

[0030] Similarly, in the condensation simulation unit 2, the sampling pipeline can be specifically a sampling gas collecting plate 23. By setting the sampling pipeline in the form of a sampling gas collecting plate 23, the impact of the flue gas containing condensate on the condensate filter membrane in the condensate filter device can be mitigated, thereby avoiding the impact of such impact on the condensate content in the flue gas, and facilitating the condensate filter membrane to fully adsorb the condensate in the flue gas.

[0031] In a specific implementation, a small hole can be provided on the sampling gas collecting disk 23, and the small hole and the inlet of the condensate filtering device are connected by a pipeline. The condensation simulation unit 2 can further include an atmospheric sampler, which can be provided on a pipeline connecting the condensate filtering device and the exhaust gas treatment unit 3, and the gas in the sampling gas collecting disk 23 is sucked to the condensate filtering device through the suction effect of the atmospheric sampler.

[0032] In the condensation simulation unit 2, various environmental conditions can be simulated in the reaction chamber 22, so as to obtain the correlation between the condensation of condensable particulate matter and various environmental conditions. In order to simulate various environmental conditions and make the reaction chamber 22 more suitable for various real atmospheric environments, the environmental condition simulation device can include a light generating device and a heating device, and the environmental condition detection device can include a temperature detection device.

[0033] Among them, the light generating device can be used to provide a lighting environment in the reaction chamber 22 to simulate the actual lighting conditions of the environment. In order to facilitate the control of light intensity and wavelength and achieve more accurate simulation, the light generating device can be a UV generating device, such as a black light lamp (a lamp that emits light mainly as long-wave ultraviolet rays). Taking the UV generating device as a black light lamp as an example, the number of black lights can be set according to the size of the reaction chamber 22, that is, the larger the reaction chamber 22, the more black lights can be, so as to achieve uniform lighting in the reaction chamber 22. In a specific implementation, the power of the black light lamp can be 8W, and the wavelength of the emitted ultraviolet light can be 365 nm.

[0034] The heating device can be used to provide a temperature environment in the reaction chamber 22 to simulate the actual temperature conditions of the environment. In a specific implementation, the heating device can be a part of the reaction chamber 22, that is, the reaction chamber 22 is a heatable reaction chamber. The temperature detection device can be used to detect the temperature in the reaction chamber 22. By controlling the heating device in combination with the temperature detection result, various actual temperature conditions of the environment can be more accurately simulated. In a specific implementation, the temperature in the reaction chamber 22 can be controlled to -20°C~80°C, and the specific value of the temperature can be selected according to the actual temperature simulation requirements.

[0035] Taking into account that atmospheric environmental conditions generally also include humidity, in order to explore the influence of environmental humidity on the condensation of condensable particulate matter, in an embodiment of the present application, the flue gas generating unit 1 may further include a humidity generator 14, and the outlet of the gas storage device 11 corresponding to nitrogen is connected to the inlet of the humidity generator 14, and the outlet of the humidity generator 14 is connected to the inlet of the premixing furnace 15. At the same time, the environmental condition detection device may also include a humidity detection device.

[0036] Among them, the humidity generator 14 can be used to generate water vapor, and the water vapor can further enter the reaction chamber 22 through the premixing furnace 15, the flue gas heating furnace 16 and the sampling pipeline, so as to simulate the actual humidity conditions of the environment in the reaction chamber 22. The humidity detection device can be used to detect the humidity in the reaction chamber 22. By controlling the humidity generator 14 in combination with the humidity detection result, various actual humidity conditions of the environment can be more accurately simulated. In specific implementation, the humidity in the reaction chamber 22 can be controlled to 0%~100%, and the specific value of the humidity can be selected according to the actual simulation requirements of the humidity.

[0037] In the condensation simulation unit 2, the condensate filtering device may include a condensate filtering membrane, which may be used to filter the condensate in the flue gas output from the reaction chamber 22. To achieve a better filtering effect, the condensate filtering membrane may be a quartz membrane, and the pore size of the condensate filtering membrane may be 0.1 μm-2.5 μm, more preferably 0.22 μm.

[0038] In the embodiment of the present application, the tail gas treatment unit 3 can be used to purify the gas discharged from the condensate filter device to meet the emission standards. The tail gas treatment unit 3 can include a tail gas absorber 31, a dryer 32, a flow meter 33 and a suction pump 34 connected in sequence; the gas outlet of the condensate filter device is connected to the inlet of the tail gas absorber 31.

[0039] The tail gas absorber 31 can remove pollutants in the gas discharged from the condensate filtering device by chemical, physical, etc. The dryer 32 can dry the gas discharged from the tail gas absorber 31, and the dryer 32 can be a silica gel dryer.

[0040] In practical applications, before each formal simulation, it is generally necessary to discharge the residual waste gas in the reaction chamber 22. To facilitate the discharge of the waste gas, the condensation simulation unit 2 may further include a waste gas exhaust pipeline (not shown in the figure), the inlet of the waste gas exhaust pipeline is connected to the reaction chamber 22, and the outlet of the waste gas exhaust pipeline is connected to the inlet of the exhaust treatment unit 3. Specifically, the inlet of the waste gas exhaust pipeline may be connected to the small hole on the sampling gas collecting plate 23, and an atmospheric sampler may be provided on the waste gas exhaust pipeline, and the waste gas in the reaction chamber 22 is sucked into the exhaust absorber 31 through the suction action of the atmospheric sampler.

[0041] It can be understood that the condensable particulate matter condensation simulation system provided in the embodiment of the present application includes a smoke generating unit 1, a condensation simulation unit 2 and an exhaust gas treatment unit 3; the smoke generating unit 1 is used to prepare smoke; the condensation simulation unit 2 includes an inlet pipeline, a reaction chamber 22, a sampling pipeline and a condensate filter device connected in sequence, and an environmental condition simulation device and an environmental condition detection device arranged in the reaction chamber 22; the smoke outlet of the smoke generating unit 1 is connected to the inlet of the inlet pipeline, and the gas outlet of the condensate filter device is connected to the inlet of the exhaust gas treatment unit 3. Since the condensable particulate matter condensation simulation system provided in the embodiment of the present application can simulate the condensation process of condensable particulate matter under various environmental conditions, and then determine the correlation between various environmental conditions and the condensation amount of condensable particulate matter, the condensation of CPM in the atmospheric environment can be effectively controlled based on these correlations.

[0042] Specifically, based on the correlation between various environmental conditions and the condensation amount of condensable particulate matter, supporting devices can be set to control the condensation of CPM in the atmospheric environment. For example, if it is determined that high humidity will increase the condensation of CPM in the atmospheric environment, a water spray device can be set at the outlet of the chimney to allow the condensation process to occur in the chimney, thereby reducing condensation in the atmosphere. For another example, if it is determined that low temperature will increase the condensation of CPM in the atmospheric environment, a cooling device can be set at the outlet of the chimney to allow the condensation process to occur in the chimney, thereby reducing condensation in the atmosphere. In actual applications, the operating parameters of these supporting devices can also be more finely controlled according to the above-mentioned correlation, thereby further reducing the condensation of CPM in the atmospheric environment.

[0043] Based on the condensable particle condensation simulation system provided in the above embodiment of the present application, the embodiment of the present application also provides a method for using the condensable particle condensation simulation system. Figure 2 As shown, the method of use may include the following steps: Step 201, exhausting the waste gas in the reaction chamber.

[0044] In specific implementation, the waste gas in the reaction chamber can be emptied through the waste gas exhaust pipeline, and the waste gas is further introduced into the tail gas treatment unit for purification treatment.

[0045] Step 202, introducing nitrogen and oxygen into the reaction chamber through the flue gas generating unit, and controlling the temperature in the premixing furnace in the flue gas generating unit to a first preset temperature, the temperature in the flue gas heating furnace in the flue gas generating unit to a second preset temperature, the temperature in the reaction chamber to a third preset temperature, and the humidity in the reaction chamber to a preset humidity.

[0046] The nitrogen and oxygen introduced into the reaction chamber can be used as background gases to simulate the gas composition of the atmospheric environment. Therefore, the volume ratio of the nitrogen and oxygen introduced can be 79:21.

[0047] The first preset temperature can be 140°C~160°C, and the specific temperature value can be selected according to actual needs. The second preset temperature can be 350°C~500°C, and the specific temperature value can be selected according to actual needs. The third preset temperature can be -20°C~80°C, and the specific temperature value can be selected according to the actual simulation requirements of temperature. The preset humidity can be 0%~100%, and the specific humidity value can be selected according to the actual simulation requirements of humidity. In specific implementation, the humidity generator can be turned on and the water vapor can be carried to the reaction chamber by nitrogen.

[0048] In practical applications, nitrogen and oxygen can be continuously introduced into the reaction chamber for a preset time (such as half an hour), which can not only introduce background gas into the reaction chamber, but also further remove waste gas in the system.

[0049] Step 203, introducing flue gas into the reaction chamber through the flue gas generating unit, and after a first preset time period, detecting the condensate filter membrane in the condensate filter device.

[0050] In specific implementation, nitrogen, oxygen, sulfur dioxide, nitrogen oxides and ammonia can be introduced into the premixing furnace, and after the gases are preliminarily mixed in the premixing furnace, they are further introduced into the flue gas heating furnace for mixing and reaction to obtain flue gas, and then the flue gas is introduced into the reaction chamber. Among them, the concentrations of sulfur dioxide, nitrogen oxides and ammonia in the flue gas can refer to the ultra-low emission standards for coal-fired boilers in thermal power plants implemented in 2014, so that flue gas with the same or similar components as the actual flue gas of coal-fired power plants can be introduced into the reaction chamber.

[0051] The condensable particles in the flue gas introduced into the reaction chamber are condensed in the environmental conditions simulated by the reaction chamber, and the flue gas containing condensate obtained in the reaction chamber is further introduced into the condensate filter device. The first preset time length can be the duration of passing the flue gas containing condensate into the condensate filter device, which can also be called the sampling time length. The gas flow rate when passing the flue gas containing condensate into the condensate filter device can be controlled to be about 1L / min.

[0052] It should be noted that during step 203, the temperature in the premixing furnace is still controlled to be the first preset temperature, the temperature in the flue gas heating furnace is still controlled to be the second preset temperature, the temperature in the reaction chamber is still controlled to be the third preset temperature, and the humidity in the reaction chamber is still controlled to be the preset humidity.

[0053] In the embodiment of the present application, the detection of the condensate filter membrane in the condensate filter device may include a sampling part and an analysis part, which are specifically as follows: (1) Sampling The condensate filter membrane was taken out. First, the condensate filter membrane was dried in a vacuum to eliminate the condensate content error caused by the interfacial water. Then, the condensate filter membrane was cut into pieces with a diameter of about 5 mm, and the condensate in the condensate filter membrane was extracted with 10 mL of ultrapure water in an ultrasonic water bath to obtain an ultrapure water extract. Then, 10 mL of n-hexane was used to extract the organic components in the condensate filter membrane pieces to obtain a n-hexane extract.

[0054] (2) Analysis Ion chromatography (IC) was used to detect inorganic substances in the ultrapure water extract and to quantitatively analyze the inorganic components in the condensate.

[0055] The organic matter in the n-hexane extract is detected by gas chromatography-mass spectrometry (GC-MS), liquid chromatography (LC), etc., and the organic components in the condensate are qualitatively and quantitatively analyzed. In specific implementation, the n-hexane extract can be appropriately evaporated and concentrated before the above detection.

[0056] Based on the analysis results of the above inorganic and organic components, the correlation between various environmental conditions and various components in the condensate can be determined, so that the condensation of CPM in the atmospheric environment can be more effectively controlled.

[0057] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0058] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A condensable particulate matter condensation simulation system, characterized in that: The condensable particulate matter condensation simulation system comprises a smoke generating unit, a condensation simulation unit and an exhaust gas treatment unit; the smoke generating unit is used to prepare smoke; the condensation simulation unit comprises an inlet pipeline, a reaction chamber, a sampling pipeline and a condensate filtering device connected in sequence, and an environmental condition simulation device and an environmental condition detection device arranged in the reaction chamber; The smoke outlet of the smoke generating unit is communicated with the inlet of the sampling pipeline, and the gas outlet of the condensate filtering device is communicated with the inlet of the tail gas treatment unit.

2. The condensable particulate matter condensation simulation system according to claim 1, characterized in that: The environmental condition simulation device includes a light generating device and a heating device, and the environmental condition detection device includes a temperature detection device and a humidity detection device.

3. The condensable particulate matter condensation simulation system according to claim 1, characterized in that: The condensation simulation unit further includes a turbulence fan disposed in the reaction chamber.

4. The condensable particulate matter condensation simulation system according to claim 1, characterized in that: The condensation simulation unit further includes an exhaust gas exhaust pipeline, an inlet of the exhaust gas exhaust pipeline is communicated with the reaction chamber, and an outlet of the exhaust gas exhaust pipeline is communicated with an inlet of the tail gas treatment unit.

5. The condensable particulate matter condensation simulation system according to claim 1, characterized in that: The condensate filtering device comprises a condensate filtering membrane, and the pore size of the condensate filtering membrane is 0.1 μm-2.5 μm.

6. The condensable particulate matter condensation simulation system according to claim 2, characterized in that: The flue gas generating unit comprises a premixing furnace, a flue gas heating furnace and gas storage devices corresponding to the plurality of gases; the outlets of the respective gas storage devices are connected to the inlet of the premixing furnace, the outlet of the premixing furnace is connected to the inlet of the flue gas heating furnace, and the outlet of the flue gas heating furnace is connected to the inlet of the sampling pipeline.

7. The condensable particulate matter condensation simulation system according to claim 6, characterized in that: The gas storage device includes a gas storage device corresponding to nitrogen, and the flue gas generating unit also includes a humidity generator. The outlet of the gas storage device corresponding to nitrogen is connected to the inlet of the humidity generator, and the outlet of the humidity generator is connected to the inlet of the premixing furnace.

8. The condensable particulate matter condensation simulation system according to claim 7, characterized in that: The gas storage device also includes gas storage devices corresponding to oxygen, sulfur dioxide, nitrogen oxides and ammonia respectively.

9. The condensable particulate matter condensation simulation system according to claim 1, characterized in that: The tail gas treatment unit comprises a tail gas absorber, a dryer, a flow meter and a suction pump which are connected in sequence; the gas outlet of the condensate filtering device is connected to the inlet of the tail gas absorber.

10. A method for using the condensable particle condensation simulation system according to any one of claims 1 to 9, characterized in that: The method of use comprises: exhausting the waste gas in the reaction chamber; Introducing nitrogen and oxygen into the reaction chamber through the smoke generating unit, and controlling the temperature in the premixing furnace in the smoke generating unit to a first preset temperature, the temperature in the smoke heating furnace in the smoke generating unit to a second preset temperature, the temperature in the reaction chamber to a third preset temperature, and the humidity in the reaction chamber to a preset humidity; Flue gas is introduced into the reaction chamber through the flue gas generating unit, and after a first preset time period, the condensate filter membrane in the condensate filter device is detected.

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