Real-time online continuous methanol detecting device and method

Abstract

The invention discloses a real-time online continuous methanol detecting device and method. The real-time online continuous methanol detecting device comprises a liquid path module, a gas path module and a detecting module, wherein the detecting module comprises a light shielding casing, a reactor and a photoelectric sensor; the reactor and the photoelectric sensor are arranged in the light shielding casing; the liquid path module comprises a liquid storing unit, a liquid inlet pump, a mixer and a liquid sucking pump; the liquid storing unit, the liquid inlet pump and the mixer are sequentially communicated through liquid path pipelines and are communicated with a liquid inlet hole of the detecting module; the liquid sucking pump is communicated with a liquid outlet hole of the detecting module through the liquid path pipelines; the gas path module comprises a filter and a gas sucking pump; the filter is communicated with a gas inlet hole of the detecting module through a gas path pipeline; the gas sucking pump is communicated with a gas outlet hole of the detecting module through the gas path pipeline. According to the method, detection is performed by utilizing the device. According to the real-time online continuous methanol detecting device and the detecting method disclosed by the invention, extremely high detecting sensitivity and good selectivity are guaranteed, the responding speed of the detecting system is improved to the maximum extent, and the real-time online detection on methanol gas is realized.

Description

technical field [0001] The invention relates to the technical field of formaldehyde detection, and more specifically, to a real-time on-line continuous formaldehyde detection device and a detection method. Background technique [0002] Formaldehyde is a colorless gas with a special pungent smell, which is irritating to human eyes and respiratory system. Living in an environment containing formaldehyde for a long time will cause great harm to the human body, so the accurate measurement of formaldehyde concentration is of great significance. [0003] The measurement of formaldehyde gas in the prior art mainly adopts spectrophotometry, electrochemical method, chromatography, chemiluminescence and the like. Among them, the detection sensitivity of the chemiluminescence method is relatively high, but at present, the liquid phase chemiluminescence method is used to measure formaldehyde. Phase chemiluminescence, the formaldehyde content is measured by the intensity of the lumines...

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Problems solved by technology

The traditional absorption method takes a long time to complete the absorption of formaldehyde and cannot be measured o

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