Energy-saving constant temperature automatic control method and device for movable grate boiler

Abstract

The invention relates to an energy-saving and constant-temperature automatic control method and device for a movable grate boiler, belonging to the field of boilers. Using heat carrier temperature parameters, furnace temperature parameters, furnace negative pressure parameters, furnace flue gas component content parameters, heat carrier flow parameters and heat carrier pressure parameters, through software analysis and expert database reasoning calculations, the fuel supply and combustion air volume can be determined in real time And the optimal data of the furnace negative pressure, real-time control of the operating speed of the movable grate of the boiler supplying fuel, the speed of the fan motor, and the speed of the wind-inducing motor, and then real-time control of the fuel supply, combustion air volume, and furnace negative pressure. The method and system of the present invention can accurately control the fuel supply, combustion-supporting air volume, and furnace negative pressure in real time during the combustion process, while accurately controlling the temperature of the output heat carrier, saving fuel and electric energy, and achieving the goals of energy saving, emission reduction, and consumption reduction .

Description

technical field [0001] The invention relates to the field of boilers, in particular to an energy-saving constant temperature automatic control method and device for a movable grate boiler. Background technique [0002] As we all know, industrial boilers are important equipment for providing heat energy required for production. The heat carrier is heated by fuel combustion, and the heat carrier at a certain temperature is transported to the heat-using equipment in the pipeline to meet the needs of industrial production. Improving the combustion efficiency of industrial boilers while accurately controlling the heating temperature of the heat carrier in real time is of great significance to the energy saving, consumption reduction, and emission reduction of industrial production and industrial boilers. [0003] Common movable grate industrial boilers use coal as the main fuel. Driven by the motor, the movable grate slowly transports the fuel into the furnace for combustion. The...

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Problems solved by technology

[0005] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to solve the problems of large heat carrier heating temperature error, high fuel consumption, low thermal efficiency, and large pollutant discharge that still exist in industrial boilers, and provide a real-time and accurate control of industrial boilers. Real-time automatic control method and system for heating temperature of heat carrier while improving combustion efficiency of industrial boiler

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