Easily maintainable optical dust concentration detection device

Abstract

The invention discloses an easily maintainable optical dust concentration detection device. The easily maintainable optical dust concentration detection device is characterized in that an upper shell 1 is coated with an upper shell cover group 12, the periphery of the upper shell cover group 12 is sealed with the upper shell 1 through an upper shell cover group sealing gasket 13 so that the upper shell 1 is formed into a sealed chamber for mounting a dust concentration detection system, the lower part of the upper shell 1 is connected to the upper part of a lower shell 7 through a connecting column 44, an air inlet is formed in one end of the lower shell 7, while an air outlet is formed in the other end of the lower shell 7, an optical measuring instrument 40 is fixed on the lower shell 7 between the air outlet and the air inlet and used for detecting the dust concentration, a fan is mounted at the end of the air outlet and fixed through a fan fixing cylinder 27, a motor 28 is arranged at one end of the fan and connected with an exhaust fan 41, an observing and cleaning opening 21 is formed in the lower part of the lower shell 7, and the shape of the observing and cleaning opening 21 is matched with that of the lower shell 7.

Description

technical field [0001] The invention relates to the mechanical field, in particular to an easy-maintenance optical dust concentration detection device. Background technique [0002] The dust concentration sensor is a kind of dust concentration measuring instrument made according to the principle of MIE light scattering. When dust passes through the test light path, its concentration has a linear relationship with the intensity of light scattering, and has nothing to do with other physical parameters. [0003] The principle of the dust concentration sensor is simple, the research on the dust concentration sensor at home and abroad is earlier, and there are many manufacturers. But the following problems generally exist: [0004] The unreasonable design of the optical measurement structure leads to inaccurate measurement and even wrong measurement. [0005] The anti-interference ability is poor, and it will cause inaccurate measurement or even normal measurement when used in...

AI Technical Summary

Problems solved by technology

[0004] The unreasonable design of the optical measurement structure leads to inaccurate measurement and even wrong measurement

[0005] The anti-interference ability is poor, and it will cause inaccurate measurement or even normal measurement when used in a more complex environment

[0006] The measurement optical path is easily blocked by dust, causing the entire sensor to fail to work, shortening the maintenance cycle and increasing maintenance costs

[0007] The measurement structure is easily polluted, which makes the measurement results low, and even the measurement results are wrong and invalid, which affects the production of the entire coal mining enterprise

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