A method and system for energy-saving control of electric dust removal based on boiler coal volume and air volume

Abstract

The invention discloses an electric dust removal energy-saving control method based on boiler coal volume and air volume, which includes: obtaining the current total coal volume of the boiler, the current total air volume, and the dust content at the outlet of the electrostatic precipitator; according to formula I I2 =[(T‑T target ) / (T max -T min )]*(I I2max -I I2min )+I Icoal +I Iw Calculate the target value of the electric field secondary current, and adjust the current electric field secondary current value of the electrostatic precipitator to the electric field secondary current target value. The invention also discloses an electric dust removal energy-saving control system based on boiler coal volume and air volume, which includes a parameter acquisition module for obtaining the current total coal volume of the boiler, the current total air volume, and the dust content at the outlet of the electrostatic precipitator; an analysis and adjustment module for According to formula I I2 =[(T‑T target ) / (T max -T min )]*(I I2max -I I2min )+I Icoal +I Iw Calculate the target value of the electric field secondary current, and adjust the current electric field secondary current value of the electrostatic precipitator to the electric field secondary current target value. The invention can improve the automatic control effect of the electric precipitator, prevent the power plant dust from exceeding the standard discharge, realize environmental protection, reduce the power consumption rate of the power plant, and achieve the purpose of energy saving.

Description

technical field [0001] The invention relates to the technical field of boilers, in particular to an energy-saving control method for electric dust removal based on boiler coal volume and air volume. The invention also relates to an electric dust removal energy-saving control system based on boiler coal volume and air volume. Background technique [0002] With the development of China's electric power technology, more and more power plants have been put into use. [0003] Thermal power generation is the main force in the development of electric power in modern society. Under the background of building a harmonious society and developing a circular economy, the development direction of thermal power technology should focus on the impact of power on the environment and on non-renewable energy. With the changes in the structure of power generation enterprises in China, the proportion of new energy power generation enterprises in the power grid is increasing, which requires ther...

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Problems solved by technology

This causes the personnel to control the electrostatic precipitator relatively lagging behind, and the electric field current cannot be adjusted in real time according to the load of the unit

And the change of unit load is slower than the change of dust content, and in the process of coal quality change, it cannot accurately represent the dust content entering the electrostatic precipitator

This method not only has environmental risks, but also leads to a higher power consumption rate of the electrostatic precipitator plant

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