On-site automatic verification system for water quality monitor

Abstract

The invention provides an on-site automatic verification system for a water quality monitor, comprising an on-site automatic verification platform of the water quality monitor, an automatic sampling device and an automatic dilution device. The on-site automatic verification system unifies detection standards, so as to improve the automation and informationization of detection on such measuring instruments, greatly improve the efficiency of measurement and detection, and improve the detection quality; the system lowers the quality requirements on detection personnel, reduces the labor intensityof the detection personnel, reduces the consumption of reagents for detection, lowers the quality risks brought by manual solution preparation and detection on site, and better fits the general detection on such measuring instruments; the system has the advantages of wide adaptability, high intelligence, high comprehensive efficiency, etc., can better meet the requirements of existing technical specifications, and can be popularized to metrology technology institutions in various provinces and cities in China.

Description

technical field [0001] The invention belongs to the field of measuring standard devices for environmental monitoring instruments, and in particular relates to an on-site automatic verification system for water quality monitoring instruments. Background technique [0002] With the development of environmental monitoring technology, online monitoring has become an important part of environmental monitoring. In recent years, my country has invested a lot of water quality online monitoring equipment, and established a water quality online monitoring network jointly built and managed by environmental protection departments at all levels. According to relevant data from the environmental protection department, there are nearly 100,000 sets of water quality monitors / analyzers in use in my country, involving chemical oxygen demand, nitrogen nitrogen, permanganate index, total phosphorus, total nitrogen, cadmium, copper, zinc, lead , hexavalent chromium, total chromium, manganese, co...

AI Technical Summary

Problems solved by technology

Although most of these instruments are national compulsory calibration measuring instruments, the monitoring data are used as the basis for government decision-making, some are released to the public, and the existing technical specifications are relatively sound, but the current inspection rate is still lower than 10%, or even less than 2%. The amount of data generally lacks traceability, so the comparison is poor, and the quality risks faced by environmental monitoring and governance are large and uncontrollable

At present, there is a lack of measurement standard devices for automatic water quality monitors, low efficiency of manual liquid preparation, too many on-site influencing factors, long time-consuming verification and low work efficiency, etc., which cannot meet the actual needs of the current measurement and verification work of online water quality monitors. There is an urgent need Improve the efficiency of verification work, improve the standardization level of national metrological verification work, and welcome the smooth implementation of a new round of general inspection of online water quality monitoring instruments

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