Thermal power plant SCR (selective catalytic reduction) denitrification system optimized management and fault diagnosis platform

Abstract

The embodiments of the invention disclose a thermal power plant SCR (selective catalytic reduction) denitrification system optimized management and fault diagnosis platform. With the platform adopted, a feasible technical means can be provided for the optimization and fault diagnosis of the SCR denitrification system of a thermal power plant. According to the embodiments of the invention, the diagnosis platform comprises a catalyst performance detection module and a catalyst performance prediction module; the catalyst performance detection module includes a denitrification performance test sub-module and a catalyst activity detection sub-module; the denitrification performance test sub-module is specifically used for recording predetermined thermal power set denitrification performance test data as well as corresponding conclusions and recommendations and uploading a test report; the catalyst activity detection sub-module is specifically for recording catalyst activity detection data, catalyst micro-performance analysis data and catalyst surface sediment analysis data as well as corresponding conclusions and recommendations and uploading a test report; and the catalyst performance prediction module is used for predicting the activity and potential of a catalyst according to predetermined catalyst activity attenuation detection data and the test data of the out of a denitrification performance test.

Description

technical field [0001] The invention relates to the field of visual monitoring platforms, in particular to a thermal power plant SCR denitrification system optimization management and fault diagnosis platform. Background technique [0002] SCR flue gas denitrification is currently one of the most effective and widely used technologies for NOx control, and has become the mainstream technology for NOx emission control in thermal power plants in the world. At present, more than 90% of the flue gas denitrification projects that have been built or are under construction in my country use the SCR process, basically using a complete set of imported or imported SCR key technologies and equipment, which not only has high investment and operating costs, but also has adaptability problems. [0003] Catalyst is the core technical equipment of SCR denitrification technology, and it is also one of the main consumables, which needs to be replaced regularly. During operation, if the deacti...

AI Technical Summary

Problems solved by technology

During operation, if the deactivation speed of each part of the catalyst is inconsistent, it will lead to a decrease in the denitrification efficiency in the area with a fast deactivation speed, and an increase in the ammonia escape rate, resulting in an increase in the concentration of NOx emissions and secondary pollution of ammonia.

Compared with international steam coal, my country's coal types are complex and coal quality is poor, leading to problems such as rapid deactivation and reduced effective service life, which requires close monitoring of catalyst deactivation

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