Boiler denitration dilution air supply optimizing device

The utility model discloses a boiler denitration dilution air supply optimizing device, and relates to the technical field of boiler denitration, the boiler denitration dilution air supply optimizing device specifically comprises a traditional air supply structure and an optimizing structure, the optimizing structure comprises a connecting pipe, one end of the connecting pipe is fixedly connected with a cold primary air pipe, the connecting pipe is located between a regulating valve and a pressure detector, and the other end of the connecting pipe is fixedly connected with a cold secondary air pipe. And an isolating valve II is arranged at the other end of the connecting pipe. According to the boiler denitration dilution air supply optimizing device, compressed air is introduced to supply denitration dilution air in a short time, the adverse effect caused by lack of the denitration dilution air in the unit starting and stopping period of a primary air fan and dilution air supply system is made up, and the sit