Intelligent ultralow-concentration monitoring device for gaseous pollutants discharged by thermal power plant

Abstract

The invention discloses an intelligent ultralow-concentration monitoring device for gaseous pollutants discharged by a thermal power plant. The intelligent ultralow concentration monitoring device comprises a smoke-dust separator, a smoke cooling module, a smoke testing cavity, a graphene-based gas sensor array, a multi-channel data acquisition module, an intelligent detecting system, a LABVIEW terminal display system and a wireless transmitting and monitoring system. According to the device, smoke discharged by the thermal power plant is subjected to dust removal through the smoke-dust separator and then cooled through the smoke cooking module, and enters the smoke testing cavity provided with the graphene-based gas sensor array, array signals are acquired by the multi-channel data acquisition module, smoke component concentrations are output through the intelligent detecting system with a genetic particle swarm-radial basis neural network as a core, the detected concentrations are remotely transmitted to the environment protection supervision department or a mobile phone monitoring terminal of working personnel through the wireless transmitting and monitoring system. The concentration monitoring device for smoke discharge components of the thermal power plant has the advantages of being low in detection limit, high in sensitivity and stability, capable of achieving online detection in real time and the like.

Description

technical field [0001] The invention relates to an intelligent monitoring device for ultra-low concentration of gaseous pollutants emitted by thermal power plants, in particular to an intelligent monitoring device for ultra-low concentration of gaseous pollutants emitted by thermal power plants based on a graphene gas sensor array. Background technique [0002] At present, smog weather occurs frequently across the country, and the gaseous pollutants emitted by thermal power plants are directly related to frequent smog weather and environmental pollution. As a dominant thermal power plant in electricity production, it is a large-scale industrial pollution source that the country pays close attention to. With the development of my country's electric power industry, high-parameter, large-capacity thermal power units have been put into operation one after another, and the environmental pollution caused by the exhaust gas of thermal power plants has become an urgent problem to be...

AI Technical Summary

Problems solved by technology

[0003] Metal-oxide-semiconductor gas sensors are widely used because of their simple preparation and use and low cost. However, most metal-oxide-semiconductor gas sensors need to work at high temperatures around 350°C, for which these semiconductor sensors require additional heating devices , which is not conducive to low power consumption, intelligence, miniaturization and integration of detection transposition

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