Thermal power units and their nh-based 3 Measured denitrification control method and system
A control method and technology for a control system, applied in the field of thermal power generation, can solve the problems of inability to provide an accurate, real and effective ammonia slip value, inability to accurately control NOx emissions, and to have no reference significance.
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[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0050] The core of the present invention is to provide a 3 Measured denitrification control method that can be used for NH 3 The concentration can be adjusted, and the NOx control accuracy can be improved, so that excessive NH can be effectively avoided 3 Stay in the flue gas at the tail of the boiler, causing the blockage of the air preheater. Another core of the present invention is to provide a kind of based on NH 3 measurement of the denitrification con...
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