Environment sampling and monitoring system and method based on fine particles

Abstract

The invention relates to an environment sampling and monitoring system and method based on fine particles. The system comprises an environment detection device, a fine particle sampling device, and a main control unit. The environment detection device sends detected environment parameters to the main control unit. The sampling device comprises a fine particle cutter, an automatic weighing device, a sampling fan, and a static pressure cabin pressure detecting unit. The fine particle cutter grades the sampled fine particles and delivers the graded fine particles to the automatic weighing device. The automatic weighing device weighs the fine particles. The static pressure cabin pressure detecting unit and the automatic weighing device send signals to the main control unit. The main control unit outputs a control signal to the sampling fan. The main control unit determines the actual sampling flow of fine particles according to the static pressure and controls the rotation speed of the sampling fan according to the actual sampling flow. The provided method comprehensively takes the environment parameters of a monitoring site and the formation and flowing situation of fine particles into account, the source of discharged fine particles is traced, and the problem that the source of discharged fine particles is not easy to find by the conventional monitoring method is solved.

Description

technical field [0001] The invention relates to the technical field of environmental monitoring, in particular to an environmental sampling monitoring system and method based on fine particles. Background technique [0002] Pollution is harmful to human health, whether it is air, water or solid pollutants, has been highly valued by human beings. , research over the years has shown that particulate matter is the main body of air pollutants. Some harmful elements such as Pb, Cr, Mn, As, Cd, Ni and organic compound PAH are mainly adsorbed on fine particles smaller than 2.5 μm. The smaller the particle size, the higher the stability in the air, the slower the sedimentation velocity, and the greater the chance of being inhaled into the respiratory tract, thus increasing its harmful effects. The harm of particulate matter to human health is closely related to the particle size and chemical composition of the particulate matter, as well as the deposition site in the respiratory t...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of environmental sampling monitoring system based on fine particulate matter, described environmental sampling monitoring system has considered the monitoring of the ambient temperature and humidity, atmospheric pressure and wind speed and wind direction of the monitoring point at the same time, the formation of fine particulate matter, flow condition Perform analysis to realize the traceability of fine particle pollution emissions, which is more conducive to air quality analysis, and is used to solve the problem that the existing fine particle monitoring does not comprehensively consider environmental factors, and it is not easy to trace fine particle pollution emissions

Images