Programming control method applied to boiler pulverizing system of coal-fired generating unit and device

Abstract

The invention discloses a programming control method applied to a boiler pulverizing system of a coal-fired generating unit, comprising the following steps: sending task instructions to equipments in the boiler pulverizing system of the coal-fired generating unit according to preset programs; executing corresponding tasks by the equipments according to the received task instructions; the equipments comprise a coal pulverizer, a coal feeder, a powder-feeding air source air door, a pulverizing air source air door and an entrance door of a mill exhauster; the task instructions comprise a start instruction, a stop instruction and an adjust instruction. The invention also provides a device used for realizing the programming control method, comprising a program setting unit and an instruction sending unit; wherein, the program setting unit is used for setting the automatic control programs of the boiler pulverizing system of the coal-fired generating unit; the instruction sending unit is used for sending the task instructions to the equipments in the boiler pulverizing system of the coal-fired generating unit according to the set programs so as to control the equipments to execute corresponding tasks according to the received task instructions. The invention can realize the automation control of the boiler pulverizing system, reduce the workload of the employees and increase the economic benefits.

Description

technical field [0001] The invention relates to a coal-fired generating set boiler pulverizing system, in particular to a program control method and device applied to the coal-fired generating set boiler pulverizing system. Background technique [0002] Coal-fired generator set is the process of converting the chemical energy of coal into electrical energy. The coal is first ground into coal powder through the pulverizing system, and the coal powder is input into the boiler with an appropriate amount of wind for combustion. It turns into high-temperature and high-pressure steam, completes the conversion of chemical energy of coal combustion to steam heat, converts the heat of steam into mechanical energy through the steam turbine, and converts the mechanical energy of the steam turbine into electrical energy by the generator. [0003] The function of the pulverizing system is to grind the coarse raw coal into fine coal powder to improve the combustion efficiency of the boile...

AI Technical Summary

Problems solved by technology

At present, the boiler pulverization system of coal-fired generating units in power plants mostly adopts the intermediate storage type pulverization system, see figure 1 As shown, the operation is generally done manually. The complexity and randomness of manual operation are relatively large, and it is easy to affect the stability of the milling system, thereby affecting the economic benefits.

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