A Total Pollutant Discharge Monitor

Abstract

The invention discloses a pollutant emission total amount monitor which is used for realizing the acquisition, calculation and control of pollutant emission total amount data. The pollutant emission total amount monitor is mainly formed by a data acquisition unit, an integrated circuit card (IC card for short), a card reader unit, a data storage unit, a central processing unit and an output control unit. The data acquisition unit is used for collecting an analog quantity signal and a switch quantity signal. The IC card and the card reader are used for IC card field value storage. The data storage unit is used for storing data. The central processing unit is used for reading collection signals and field value storage data and analyzing and processing the collection signals and field value storage data. The output control unit is used for realizing the control of alarm and a switch valve under the control of the central processing unit. The data acquisition unit is connected to a sampling pretreatment system and an on-line monitoring analyzer, and the sampling pretreatment system and the on-line monitoring analyzer run under the control of the control unit. According to the pollutant emission total amount monitor, the accuracy, reliability, authenticity and safety of pollutant emission total amount data are ensured.

Description

technical field [0001] The invention relates to the technical field of pollutant monitoring, in particular to a total pollutant discharge monitoring instrument. Background technique [0002] Environmental protection should ultimately be carried out on the total amount of pollutants discharged by each polluting enterprise. When the total pollutant discharge of all enterprises exceeds the carrying capacity of the environment, the environment will be damaged, otherwise, the environment will maintain a dynamic balance. Therefore, the monitoring of the total amount of pollutant discharge is a very important starting point for environmental protection. In 2016, the country has begun to formulate the "Environmental Protection Tax Law", which may become a milestone reform measure for China's environmental protection and sewage charges. Therefore, the accuracy, reliability, authenticity, security, and authority of the data need to be guaranteed from all aspects. [0003] However, ...

AI Technical Summary

Problems solved by technology

Another shortcoming of this technical requirement is that it does not mention the calculation of the total amount. In this way, the calculation function of the total amount data by many local environmental protection bureaus is realized on the online monitoring software platform of the environmental protection department, which makes the data Authoritative lack of convincing evidence

The 4mA ~ 20mA input of multiple analyzers share the same ground. Due to the fact that the ground potentials are not exactly the same with each other, there will be current flowing on the ground wire, which will affect the measurement results. In severe cases, it may not be possible to measure

Therefore, although the digital ground and the analog ground are isolated, the influence between them still cannot be eliminated, which will inevitably affect the accuracy of the data.

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