A double-chamber smoke chamber for studying aerosol change under variable environment

Abstract

The application discloses a double-chamber smoke box for researching aerosol change under a variable environment, which comprises a smoke box shell, a primary reaction chamber, an environment simulation chamber and a secondary reaction chamber arranged in the smoke box shell, and ventilation openings connected in a head-tail mode at the primary reaction chamber, the environment simulation chamber and the secondary reaction chamber. The application comprises three modes of air exchange mode, cleaning mode and air inlet mode, and the environment simulation chamber comprises a rainwater simulation structure, a lightning simulation structure and a temperature sudden change environment simulation structure. The pressurizing pump, the metering pump and the spark plug electrode discharge are controlled by an external PLC module, electromagnetic valves controlled by the external PLC module are arranged at each port of the primary reaction chamber, the secondary reaction chamber and the environment simulation chamber, and the application is integrated designed for the double-chamber smoke box, so that the switches of the device are controlled by the PLC module, and the operation is more convenient.

Claims

1. A dual-chamber smoke chamber for studying aerosol changes under varying environments, comprising a smoke chamber shell (13), characterized in that: The smoke box shell (13) is equipped with a primary reaction chamber (1), an environmental simulation chamber (3) and a secondary reaction chamber (2), and the air vents of the primary reaction chamber (1), the environmental simulation chamber (3) and the secondary reaction chamber (2) are connected end to end; The inner wall of the primary reaction chamber (1) is equipped with a black light lamp (4), and the primary reaction chamber (1) is equipped with an air inlet (14) for the outer cavity of the primary reaction chamber, an air outlet (15) for the inner cavity of the primary reaction chamber, an exhaust outlet (16) for the outer cavity of the primary reaction chamber, and a connection port (17). The environmental simulation chamber (3) is equipped with an aerosol generator (7), a fan (8), a spark plug electrode (9), a nozzle (10), a temperature-controlled copper metal pipe (12), and a water storage tank (5). The inner wall of the secondary reaction chamber (2) is equipped with a black light lamp (4), and the secondary reaction chamber (2) is equipped with an air inlet (18) for the outer cavity of the secondary reaction chamber, an air outlet (19) for the inner cavity of the secondary reaction chamber, an exhaust outlet (20) for the outer cavity of the secondary reaction chamber, and a connection port (17). The air inlet on one side of the environmental simulation chamber (3) is connected to the connection port (17) on the primary reaction chamber (1) via a pipe and a metering pump (11), and the exhaust port on the other side of the environmental simulation chamber (3) is connected to the connection port (17) on the secondary reaction chamber (2) via a pipe and a metering pump (11).

2. The dual-chamber smoke chamber for studying aerosol changes under varying environments according to claim 1, characterized in that: The primary reaction chamber (1) is equipped with a cubic gas bag made of Teflon material. The cubic gas bag forms an inner cavity structure, and the primary reaction chamber (1) and the cubic gas bag form an outer cavity structure. Temperature and humidity sensors are installed in both the inner and outer cavity structures. The ventilation port (15) of the inner cavity of the primary reaction chamber is connected to the cubic gas bag in the primary reaction chamber (1).

3. The dual-chamber smoke chamber for studying aerosol changes under varying environments according to claim 1, characterized in that: The internal structure of the secondary reaction chamber (2) is the same as that of the primary reaction chamber (1). Each port of the primary reaction chamber (1), the secondary reaction chamber (2) and the environmental simulation chamber (3) is equipped with a solenoid valve controlled by an external PLC module.

4. A dual-chamber smoke chamber for studying aerosol changes under varying environments according to claim 1, characterized in that: The water storage tank (5) is connected to the nozzle (10) via a booster pump (6), and the water storage tank (5), booster pump (6) and nozzle (10) form a rainwater simulation structure in the environmental simulation chamber (3).

5. A dual-chamber smoke chamber for studying aerosol changes under varying environments according to claim 1, characterized in that: The aerosol generator (7) contains the required fine particulate matter and solid aerosols. Through the fan (8), the gas sent from the primary reaction chamber (1) and the aerosol sent from the aerosol generator (7) form a mixed gas structure in the environmental simulation chamber (3).

6. A dual-chamber smoke chamber for studying aerosol changes under varying environments according to claim 4, characterized in that: A metering pump (11) is installed at the air inlet (14) of the outer cavity of the primary reaction chamber (1). A metering pump (11) is installed between the primary reaction chamber (1) and the environmental simulation chamber (3). A metering pump (11) is installed between the environmental simulation chamber (3) and the secondary reaction chamber (2). A metering pump (11) is installed at the exhaust port (20) of the outer cavity of the secondary reaction chamber (2). The pressurization pump (6), the metering pump (11) and the spark plug electrode (9) are all controlled by an external PLC module.

7. A dual-chamber smoke chamber for studying aerosol changes under varying environments according to claim 1, characterized in that: The two temperature-controlled copper pipes (12) inside the environmental simulation chamber (3) are connected to the external heating and cooling devices respectively. The temperature-controlled copper pipes (12) generate heat and cool the environment in the environmental simulation chamber (3), so that a temperature change structure is formed in the environmental simulation chamber (3).

8. A dual-chamber smoke chamber for studying aerosol changes under varying environments according to claim 1, characterized in that: The air inlet (18) of the outer cavity of the secondary reaction chamber (2) and the air outlet (19) of the inner cavity of the secondary reaction chamber are respectively connected to the external zero gas generator.

9. A dual-chamber smoke chamber for studying aerosol changes under varying environments according to claim 1, characterized in that: The lightning simulation unit in the environmental simulation chamber (3) includes two spark plug electrodes (9), which serve as the positive and negative electrodes, respectively.

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