Atmospheric particulate sampling system

Abstract

The invention relates to an atmospheric particulate sampling system, and belongs to the technical field of atmosphere monitoring. The atmospheric particulate sampling system comprises an aircraft with a sampling apparatus and a ground moving power supply apparatus, wherein the aircraft is connected with the ground moving power supply apparatus by virtue of a cable, the aircraft is a rotorcraft, the sampling apparatus comprises a rotary gas collection mechanism and a gas sampler, an opening of a gas input end of the rotary gas collection mechanism faces upwards and is disposed below an annular area formed by distributing all rotors, the sampling system is provided with a controller, and the gas sampler forms a mechanism for sampling atmospheric particulates in all directions for a long time by virtue of the control of the controller on the rotary gas collection mechanism and the rotorcraft. The rotary gas collection mechanism is switched between a working position and a nonworking position by the rotary gas collection mechanism, the atmospheric particulates are collected by virtue of airflow generated by rotors, the load capacity is greatly reduced, the flight duration is greatly prolonged, and the requirement on a power sully is also reduced.

Description

technical field [0001] The invention belongs to the technical field of atmospheric monitoring, and in particular relates to an atmospheric particle sampling system. Background technique [0002] In recent years, with the continuous improvement of social demand and social productivity, the problem of air pollution has become more and more serious. Particle pollution is an important form of air pollution. Particles in primary pollutants mostly contain strong carcinogens such as benzo(a)pyrene, toxic Heavy metals, various organic and inorganic compounds, etc. These pollutants interact with other substances in the atmosphere or react with normal components in the atmosphere to produce secondary pollutants. Generally, they have smaller particles and are more toxic than primary pollutants. Large and other characteristics, in which particles with smaller particle sizes float in the atmosphere for a long time and have the properties of colloids, also known as aerosols, such as PM2.5...

AI Technical Summary

Problems solved by technology

Although small multi-rotor aircraft can be used as an ideal carrying platform for atmospheric particle samplers, due to the limitations of battery energy storage in existing technologies, resulting in excessive weight and short flight time, ordinary small multi-rotor aircraft are being studied in more depth The characteristics and laws of atmospheric particulate matter pollution are subject to certain restrictions

The patent document with the application number 201210597187.9 discloses a cable-powered multi-rotor aircraft system. Although this patent proposes the idea of ​​using cables to supply power to the aircraft to achieve long-term flight, the power supply system uses ground to meet the needs of brushless motors. For low-voltage power transmission, only cables with relatively large diameters can be used, which cannot meet the power supply requirements of large-load and high-power aircraft

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