Volatile organic compound online monitoring system

Abstract

The invention discloses a volatile organic compound online monitoring system, which comprises a VOCs (volatile organic compounds) monitoring subsystem and a data acquisition and processing subsystem,wherein the VOCs monitoring subsystem comprises a sampling preprocessing system and an electronic control unit, and the sampling preprocessing system comprises a sampling preprocessing unit and a VOCsanalyzer; the data acquisition and processing subsystem comprises a junction box, an industrial personal computer and a system, and the system comprises a data display unit, a data printing unit, a data storage unit, a data remote transmission unit, and an intranet; the data remote transmission unit and the intranet are electrically connected with an environment-friendly monitoring information platform. The invention relates to the technical field of volatile organic compound online monitoring. The pretreatment method complies with the US, EU and domestic fixed pollution source exhaust gas measurement standards. The method has high reliability and the system adopts a total heat method to ensure the accuracy and reliability of monitoring data. The instrument sampling response speed is fast, the automatic calibration function is provided, the whole calibration is supported, and people are not needed to be on duty.

Description

technical field [0001] The invention relates to the technical field of on-line monitoring of volatile organic compounds, in particular to an on-line monitoring system of volatile organic compounds. Background technique [0002] According to the definition of the World Health Organization, a compound with a boiling point of 50-250 ° C, a saturated vapor pressure at room temperature exceeding 133.32 Pa, and a class of organic compounds that exist in the form of vapor in the air at room temperature are volatile organic compounds. According to their different chemical structures, they can be further divided into eight categories: alkanes, aromatics, alkenes, halocarbons, esters, aldehydes, ketones and others. The main components of VOCs are: hydrocarbons, halogenated hydrocarbons, oxygen hydrocarbons and nitrogen hydrocarbons, which include: benzene series, organic chlorides, Freon series, organic ketones, amines, alcohols, ethers, esters, acids and petroleum hydrocarbon compoun...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides an online monitoring system for volatile organic compounds, which solves the problem of existing fixed pollution sources in industries such as petrochemical, rubber products, semiconductor manufacturing, medicine, printing, spraying, organic solvent manufacturing, and automobile manufacturing. In the discharge of organic matter, there are often problems that the monitoring system is not up to standard, so that the discharge of organic matter will be excessively discharged, polluting the environment and human health.

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