Phytotron haze environment simulating device and haze environment simulating method thereof

Abstract

The invention discloses a phytotron haze environment simulating device and a haze environment simulating method thereof. The device comprises a phytotron, a haze parameter detection unit, a cloud mist generation unit and a dust-haze generation unit, the haze parameter detection unit is arranged in the phytotron, and the output end of the cloud mist generation unit and the output end of the dust-haze generation unit are communicated with the interior of the phytotron. The simulating method comprises the steps that dust-haze particle raw materials are prepared and evenly mixed, the clout mist generation unit is started to form a cloud mist environment, the dust-haze generation unit is started to form a dust-haze environment, and mutual superposition, chemical combination and even mixing of mist steam and dust-haze particles are facilitated to form a haze environment. According to the phytotron haze environment simulating device and the haze environment simulating method thereof, PM2.5 particles and the stable haze environment of which the cloud mist concentration, chemical components of dust-haze particles and particle size distribution can be freely controlled and adjusted can be formed in the phytotron, and a safe and reliable experiment support is provided for researching the influence of the haze environment on human body health, outdoor traffic and electrical external insulation equipment.

Description

technical field [0001] The invention relates to the technical fields of atmospheric environment science and engineering and electrical engineering, in particular to an artificial climate chamber haze environment simulation device and a haze environment simulation method thereof, using the device and method to form a natural haze in an artificial climate chamber Haze environment with the same physical and chemical characteristics. Background technique [0002] In recent years, my country's air pollution problem has become increasingly serious, especially in the Pearl River Delta, Yangtze River Delta, Beijing-Tianjin-Tangshan and Central China and other economically developed areas. The smog environment has a wide range, high intensity, and long time, resulting in inhalable and harmful air. The sharp increase in particulate matter content and the sharp decrease in outdoor visibility have brought serious harm to human health, daily travel, and traffic order. Smog is composed of...

AI Technical Summary

Problems solved by technology

However, when carrying out the above research experiments on the environmental impact characteristics of haze, people often use an aerosol generating system with a single chemical composition to form the required haze environment in the laboratory. The actual situation of haze in the environment is very different, resulting in a large gap between the test results and the actual situation; and a small number of researchers simply use the "natural laboratory" conditions in which the technical parameters of the natural haze environment are uncontrollable. Carrying out various experiments and research, due to the inability to manually intervene in the experimental conditions and parameters, the quantification of the research process and research results cannot be realized, which has brought many adverse effects to the in-depth study of the impact characteristics of the haze environment

Some researchers in China have also proposed to build a giant "smog box" to carry out in-depth experiments on the impact of smog environment. For example, in March 2014, the Chinese Academy of Sciences proposed to build the world's largest "smog box" in Huairou, Beijing to simulate smog. Formation, governance and influence characteristics, but in the end it was not launched due to huge cost and long cycle (budget as high as 500 million yuan)

[0004] In view of the defects and deficiencies in the formation of the haze environment in the current experimental research on the impact characteristics of the haze environment in China, and in order to overcome the defects of high cost and long cycle of building a haze environment laboratory

Images