Unmanned aerial vehicle-mounted remote-controlled VOCs air bag sampling device

Abstract

The invention discloses an unmanned aerial vehicle-mounted remotely-controlled VOCs air bag sampling device. The device mainly comprises a protection carrying box and a connecting frame part. The protection carrying box comprises a remote sampling control module, a TVOC detection module, a negative pressure VOCs air bag sampling box, a rotatable telescopic sampling pipeline and a vacuum pump. Theremote sampling control module is used for controlling the on-off and flow of the vacuum pump and the direction and length of the rotatable telescopic pipeline; the TVOC detection module part is usedfor detecting the TVOC concentration of the environment to be detected where the sampling head is located in real time; a clean sampling air bag is arranged in the negative-pressure VOCs air bag sampling box; the rotatable telescopic sampling pipeline is adjusted to adapt to different field conditions of flue gas and a discharge port during sampling; and the connecting frame part is used for stably and conveniently hanging the sampling equipment on the unmanned aerial vehicle. The device is high in controllability, the VOCs sampling cost is greatly reduced, VOCs samples and component spectrumsare more comprehensive and accurate in time and space, and a solution is provided for a large number of existing problems in VOCs sampling.

Description

technical field [0001] The invention relates to the technical field of atmospheric pollutant sampling in environmental monitoring, in particular to a sampling device suitable for sampling high-risk or elevated VOCs fixed or unorganized emission pollution sources that cannot be accessed manually, and a collection device for VOCs samples in ambient air at different heights. Background technique [0002] Volatile Organic Compounds (Volatile Organic Compounds, VOCs) generally refer to organic compounds with high saturated vapor pressure (greater than 0.1mmHg under standard conditions), low boiling point, small molecular weight, and volatile at room temperature. VOCs are near ground O 3 and secondary organic aerosol (SOA) generation important precursors: under the action of light, VOCs can generate O through photochemical reaction 3 , peroxyacetyl nitrate (PAN), highly active free radicals (OH, RO 2 、HO 2 ), aldehydes, ketones, organic nitrates and other secondary pollutants, ...

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Problems solved by technology

[0007] The present invention aims to solve the problem that in the prior art offline VOCs sampling, vertically distributed samples are difficult to obtain, some sampling points cannot be reached manually, the sampling process is difficult to control after being far away from the ground, the strain force of the sampling instrument is insufficient with the change of the concentration of environmental VOCs, and the sampling high cost problem

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