Method for monitoring coal type layering in coal bunkers in real time

Abstract

The invention discloses a method for monitoring coal type layering in coal bunkers in real time. The method comprises the following steps of S1, tracking the flow direction of fire coal by utilizing fuel features; S2, uploading accumulative coal quantity data of an electronic belt scale for coal as fired to a PI database of an SIS system of a power plant in real time, updating the working state ofa coal plough in a coal bunker to the PI database in real time, and updating data of a coal level meter in the coal bunker and flow data of a coal feeder in the coal bunker to the PI database in realtime; S3, calculating a coal quantity Wi of the upper bunker of each coal bunker and simultaneously following coal type and coal quality data information of the upper bunker; S4, establishing a mapping relationship between the coal level and the coal quantity of the coal bunker, namely, a coal type level and quantity corresponding model; and S5, analyzing the coal level change of each coal type in the coal bunker in real time in the operation process of the coal bunker according to the state of the coal plough, the instantaneous flow rate of the coal feeder and the data of the coal level meter. The method has the beneficial effect of obtaining and displaying the layer distribution condition of each coal type in the coal bunker in real time.

Description

Technical field [0001] The invention relates to an intelligent management and control system for coal-fired power generation, in particular to a real-time monitoring method for coal bunker coal types of coal-fired power plants. Background technique [0002] When coal is taken from a coal yard or freight (water transportation / vehicle transportation) is directly connected to the warehouse, an electronic belt scale for coal entering the furnace is equipped on the upper warehouse line to record the amount of coal entering the furnace; the coal storage is equipped with a coal level Meter device to detect the height of the coal level in the coal bunker. Generally, the electronic belt scale for coal entering the furnace can only get the total coal quantity of the silo in one shift, but cannot get the quantity of the silo coal in each bunker during the silo loading process. At the same time, the coal type and coal quality data in the bunker cannot be updated to the database in real time ...

AI Technical Summary

Problems solved by technology

Usually, the electronic belt scale for incoming coal can only get the total amount of coal in one shift, but not the amount of coal in each bunker during the binning process. At the same time, the coal type and quality data in the coal bunker cannot be updated to the database in real time. , resulting in a disconnection between the boiler operation and the coal quality and quantity of the coal that enters the furnace, which affects the real-time adjustment and optimization of the boiler operation, and brings inconvenience to the accurate analysis of coal consumption for power generation

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