Dust concentration detection device based on multi-angle acquired image

Abstract

The invention relates to a detection device and aims at providing a dust concentration detection device based on a multi-angle acquired image. The device needs to adopt non-contact measurement, does not disturb the flow field in a pipeline, and has the characteristics of accurate measurement accuracy, high efficiency, strong environment adaptability and convenient use. In the technical scheme, thedust concentration detection device based on the multi-angle acquired image is characterized by comprising a dust and gas pretreatment unit for pre-treating to-be-detected dust and a blank gas, a detection unit for acquiring dust image signals in the pipeline, an image analysis and processing unit for receiving and analyzing the image signals to acquire a dust concentration value, a dust processing and discharging unit for receiving the dust and the gas in the detection unit and performing discharging with the standard, a backflow unit for performing dust removal treatment on the dust which does not reach the standard in the dust processing and discharging unit and a dust concentration classification and control unit for controlling the backflow unit to work.

Description

technical field [0001] The invention relates to a detection device, in particular to a dust concentration detection device based on images collected from multiple angles. Background technique [0002] The environment in which dust particles are generated is very complex, and the generated dust particles are of different sizes and unevenly distributed. Therefore, the measurement of dust concentration requires very professional research. At present, most of the soot concentration monitoring products in my country are based on the filter weighing method and the light scattering method. A series of cumbersome processes such as this cannot reflect the situation of dust in the field environment in time, the degree of automation is not high, and real-time measurement cannot be realized. The benchmarks of Mie scattering measurement are based on the fact that the particles are ideal spherical particles, while the shape of coal dust particles is complex. This assumption will inevitab...

AI Technical Summary

Problems solved by technology

At present, most of the dust concentration monitoring products in my country are based on the filter weighing method and light scattering method. A series of cumbersome processes such as this cannot reflect the situation of dust in the field environment in time, the degree of automation is not high, and real-time measurement cannot be realized

The benchmarks of Mie scattering measurement are based on the fact that the particles are ideal spherical particles, while the shape of coal dust particles is complex. This assumption will inevitably lead to large errors in the measurement of non-spherical coal dust particles, and light-absorbing dust particles The concentration sensor is only in high concentration, that is, at 8000-15000mg / m 3 The internal measurement is relatively accurate, and the measurement accuracy is poor in the range of low coal dust concentration, and the optical system is easily polluted and requires frequent maintenance

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