Universal device for automatically evaluating performance of volatile organic compound analyzer

Abstract

The invention provides a universal device for automatically evaluating the performance of a volatile organic compound analyzer. The universal device comprises a main control module, a switch valve, agas circuit control module, a rotary valve group module, a gas analyzer and an analysis module, wherein the main control module controls opening-closing of the switch valve, realizes switching of thegas circuit control module, and receives an output signal of the analysis module; the switch valve controls on-off of the gas circuit control module; the rotary valve group module receives a signal ofthe gas circuit control module to realize switching of multiple gas circuits; a gas outlet end of the rotary valve group module is connected with an input end of the gas analyzer; the gas analyzer tests input gas and transmits a test signal to the analysis module; and the analysis module compares various indexes of analysis standard gas and sample gas. The universal device can be used for automatically evaluating and monitoring the performance of the volatile organic compound analyzer; regular manual standard gas check is not required; the working capacity of operating personnel is reduced; amonitoring result of the universal device is more reliable; and the efficiency and the objectivity of evaluation are improved.

Description

technical field [0001] The invention belongs to the technical field of environmental monitoring, in particular to a universal device for automatically evaluating the performance of a volatile organic compound analyzer. Background technique [0002] At present, in the prior art, it is only required to manually check the calibration gas of the volatile organic compound analysis instrument regularly to ensure the validity of the data. However, due to the workload, it is actually impossible to do daily inspections manually, and sometimes even for a long time without inspections, resulting in some monitoring data that are actually invalid data are also included in the valid data, which affects The monitoring effect of organic matter analysis instruments. [0003] With the release of national standards (HJ 1012-2018 / HJ 1013-2018), the market has more stringent and standardized requirements for volatile organic compound analysis instruments. At this time, the demand for evaluation...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a general device for automatically evaluating the performance of volatile organic compound analyzers, so as to solve the cumbersome manual evaluation in the prior art and improve the efficiency and objectivity of evaluation

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