Coal Mill Monitoring and Early Warning Method and System

Abstract

The embodiment of the invention discloses a coal mill monitoring and early warning method and a coal mill monitoring and early warning system. The coal mill monitoring and early warning method includes, for example: acquiring the working state data of the coal mill, wherein the working state data includes: the primary air flow rate of the coal mill, the average temperature of the separator outlet, the current of the coal mill, and the pressure of the primary air; Judging whether the primary air flow rate of the coal mill, the average temperature of the separator outlet, the current of the coal mill, and the primary air pressure meet preset conditions to obtain a working state judgment result; and sending the working state judgment result to the user terminal. The embodiment of the present invention can realize the automatic early warning of the working state of the coal mill and automatically push the judgment result of the working state, so as to prevent the watchers from keeping an eye on the disk and save labor costs.

Description

technical field [0001] The invention belongs to the technical field of electric power system informatization, and relates to a coal mill monitoring and early warning method and a coal mill monitoring and early warning system. Background technique [0002] The coal pulverizer is the main equipment of the coal powder preparation system of the thermal power plant. level, in order to facilitate the full combustion of coal in the boiler. The working condition of the coal mill directly affects the operating efficiency and reliability of the entire boiler unit. At present, domestic power plants such as thermal power plants have basically realized information-based office, especially for safety production, there are already relatively complete data statistics, such as the combustion system where the coal-fired boiler is located, and the background has a complete DCS (Distributed Control System, distributed control system) And the SIS (Safety Instrumented System, Safety Instrumente...

AI Technical Summary

Problems solved by technology

However, the monitoring and early warning of the existing equipment is still relatively backward, such as the monitoring of the working condition of the coal mill (used to pulverize the coal block, and then blow the coal powder into the boiler through the fan to make the coal burn more fully)

However, the existing monitoring system requires manual real-time monitoring by the spectators, and judges whether there is any abnormality such as coal blockage in the coal mill based on the spectator's own experience. If any abnormality is found, the on-site investigation is carried out, and then the machine is shut down or the corresponding parameters are adjusted. etc., so there are: 1) only real-time display of current, air volume, etc., there is no way to comprehensively judge the working status of the coal mill, and give real-time early warning; 2) Manually watch the disk, you need to watch the disk in real time, if you are not careful, there is no problem Timely discovery will cause safety accidents or machine damage; 3) Manual disk reading requires very high technical and experience requirements for the disk watching personnel. damage

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