Monitoring and Management System for Flue Gas Denitrification Process

1、 System composition

1Topology diagram of the system

The denitrification process monitoring system consists of two parts: the on-site monitoring system (denitrification process monitoring substation) and the central monitoring platform.

2Denitrification process monitoring substation

The denitrification process monitoring substation consists of three parts: parameter monitoring, data acquisition and transmission, and application software.

parameter monitoringBy using a dedicated data conditioner for denitrification, the main parameter signals in the flue gas denitrification process are processed into a data format that meets the requirements of online monitoring of flue gas pollution sources, that is, accurate, complete, and systematic acquisition of key operating parameter data of the main facilities in the denitrification process, as well as pollutant emissions and flue gas parameter monitoring data.

Data collection and transmissionBy using a dedicated wireless data acquisition device for denitrification, the main data during the denitrification process is collected, stored, and sent toSpecial computer for power plant emission reductionThe power plant's own emission reduction management and use; At the same time, data is transmitted wirelessly to the remote monitoring center of the flue gas denitrification process monitoring and management system, enabling the environmental management department to monitor and manage the denitrification process.

Application software:passSpecial computer for power plant emission reduction,Implement data query, data judgment, fault alarm, and condition verification, carry out statistical analysis of on-site monitoring data, complete the judgment and statistics of facility operation status, and provide technological support for power plant emission reduction.

3Central monitoring platform

The central monitoring platform includes a pollution source central process monitoring system. Accept information from multiple on-site monitoring systems; Implement the operation of on-site data aggregation, alarm management, statistical analysis, pollutant discharge fees, total quantity verification, and pollutant discharge trading.

2、 Main functions of the system

1Realize full monitoring and control of the flue gas denitrification process in thermal power plants.

The system overcomes the disadvantage of only monitoring the parameters of the flue gas outlet in the past and can monitor the entire process of flue gas denitrification.

2Realize true total quantity control. By monitoring and analyzing the data of flue gas inlet and outlet, we can truly grasp the desulfurization capacity of flue gas SO₂The total amount.

Monitor the flue gas parameters at the inlet and outlet, real-time grasp the treatment status of the original flue gas, obtain the total emission amount, desulfurization efficiency, and dust removal efficiency of the flue gas in real time, and automatically generate the total desulfurization and dust removal amounts of the flue gas.

3To meet the needs of environmental management and provide a basic data source for total smoke control, emission reduction, and emissions trading.

According to the requirements of environmental management, the system can generate relevant daily, monthly, and annual reports, and automatically generate violation data reports for enterprises. The violations will be notified to relevant management personnel via SMS, and the monitored data will be automatically processed to generate relevant reports that meet environmental requirements. The system has the functions of total quantity control and total quantity reduction, and can also operate the NOx emission trading function through IC card.

4The system can provide technological support for the electricity subsidy of flue gas desulfurization in the power sector.

Through this system, full monitoring and control of the desulfurization process in power plants are achieved, making the desulfurization efficiency and total desulfurization amount real and clear, thus providing basic raw data for the electricity price subsidy of flue gas desulfurization in the power sector.

3、 Product scope of application

The flue gas denitrification process monitoring and management system is suitable for monitoring and managing the denitrification process of coal-fired thermal power plants, various coal-fired thermal power plants, cement plants, and various coal-fired flue gas emission units.