Control optimization method of wind and smoke system after desulfurization and denitrification transformation of thermal power units
A thermal power unit, desulfurization and denitrification technology, which is applied in the control of combustion, combustion method, and adjustment of air supply, etc., can solve the problem of lack of targeted research on the control of air and smoke system, and achieves simple on-site debugging process, easy engineering implementation, Good real-time effect
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[0024] The invention is a method for optimizing the control of the air and smoke system after the desulfurization and denitration transformation of thermal power plants, such as Figure 4 As shown, including the following steps:
[0025] Step 1: Add the following control loops and loop interfaces to the control logic configuration of the DCS of the thermal power unit's distributed control system: the oxygen correction amount control loop and loop interface after the thermal power plant's desulfurization and denitrification transformation, and the second after the thermal power plant's desulfurization and denitrification transformation. Secondary air door opening correction amount control loop and loop interface, induced draft fan output correction amount control loop and loop interface after thermal power plant desulfurization and denitration transformation, and booster fan output correction amount control loop and loop interface after thermal power plant desulfurization and denit...
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