Denitration control system and method

Abstract

The invention provides a denitration control system and method. The denitration control system comprises a solution preparation module, a solvent conveying module, a solution application module and acontrol module; the solution preparation module is coupled to the solvent addition module and a solute addition module and is used for preparing, storing and outputting a solution with a preset concentration; the solvent conveying module is coupled to the solvent addition module and is used for storing and conveying a solvent diluting the solution; the solution application module is coupled to thesolution preparation module and a solvent conveying module and is used for receiving the diluted solution and applying the diluted solution; and the control module is coupled to the solution preparation module, the solvent conveying module and the solution application module and is used for simultaneously controlling the material stock and output flow of the solution preparation module and the solvent conveying module according to the solution allowance index of the solution application module to control the input solution concentration of the solution application module so that the solutionallowance index reaches a preset value. According to the embodiment of the invention, material waste can be avoided under the condition that the solution is guaranteed to be sufficient.

Description

technical field [0001] The present disclosure relates to the field of electronic power technology, and in particular, to a denitration control system and a denitration control method capable of realizing self-adaptive feeding and liquid dispensing. Background technique [0002] SNCR (selective non-catalytic reduction, selective non-catalytic reduction) is a technology that does not use catalysts. The reducing agent (ammonia or urea) is uniformly sprayed into the high temperature zone of the furnace, and the reducing agent is rapidly decomposed and mixed with the flue gas. the pollutant NO X The reaction produces N 2 and H 2 O, thereby reducing NO in flue gas X The content of the flue gas can ensure that the components of the flue gas meet the environmental protection requirements. However, due to the high cost of the reducing agent, the control of the amount of the reducing agent added in the feeding stage has always been the concern of the user. [0003] In existing wa...

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Problems solved by technology

[0006] The purpose of the present disclosure is to provide a denitrification control system and a denitrification control method capable of automatic feeding, which are used to overcome the material waste caused by excessive solution addition or high solution concentration caused by the limitations and defects of related technologies at least to a certain extent , Insufficient reaction between the solution and the target substance caused by insufficient solution addition or too low solution concentration

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