Method for improving starting efficiency of unit

The invention relates to the technical field of unit starting, and discloses a method for improving unit starting efficiency, comprising the following steps: S1, connecting a program control end of each unit to an APS system, and dividing the program control end into five breakpoints according to functions; s2, boiler ignition temperature rise and pressure rise breakpoint; s3, a primary air nozzle is additionally arranged at a burner nozzle on the boiler, and the tangent circle of primary air is reduced by 15-25 degrees; s4, an original secondary air nozzle is replaced, and the area of the secondary air nozzle is reduced by 20-30%; s5, setting a starting sequence and interval time of each item in the breakpoints and between the breakpoints according to a production process; and S6, checking before starting, and optimizing and adjusting control parameters. According to the method for improving the starting efficiency of the unit, the five breakpoint functional groups are controlled to run in parallel, the star