Automatic control method for boiler oil burner and device thereof

Abstract

The invention relates to an automatic control method for boiler oil burners, which comprises the following steps: a, the oil burner is partitioned into a plurality of layers; b, the oil boiler is operated taking a layer as a unit when an instruction of inputting or quitting is received; c, the next layer of the oil burner is operated until all of layers of the oil burner are operated when the operating amount of the oil burner in one layer is larger than 80 percent; and d, when an instruction of operating or stopping operating is received in one layer, a corresponding oil burner is sequentially operated, if the oil burner is operated, or the operation is not allowed, the next oil burner is operated. The device for realizing the automatic control method comprises an oil burner layer operating judgment loop, a boiler oil burner layer management loop and a layer oil burner management loop, wherein the oil burner layer operating judgment loop inputs the operating signals of the oil burners in the layer and outputs the signals to the boiler oil burner layer management loop; the boiler oil burner layer management loop also inputs an oil burner ignition instruction and the last signal of the failed starting of the oil burner in each layer, and outputs starting instructions of the oil burners in each layer to each oil burner management loop; and the layer oil burner management loop inputs operating allowing and operating signals of the oil burners of each layer and starting instructions of the oil burner of each layer and outputs ignition instructions of the oil burner of each layer.

Description

technical field [0001] The invention relates to a method for automatically and sequentially controlling the input and withdrawal of combustion of a boiler oil burner in a thermal power plant, and also relates to a device for realizing the above method. Background technique [0002] The thermal power plant converts energy by burning fuel (usually coal) in the boiler to drive the steam turbine unit to generate electricity. To ignite coal in the boiler needs to pass through oil burners, so there are multiple oil burners in the boiler. The devices are arranged layer by layer in the whole furnace. In the process of increasing or decreasing the fuel, numerous oil burners are put into or withdrawn from combustion in sequence. [0003] Each set of oil burner includes multiple devices: oil gun, ignition gun, oil gun propeller, ignition gun propeller, high-energy igniter, ignition oil valve, purge valve, atomization valve, flame detector (referred to as flame detector) . Each set o...

AI Technical Summary

Problems solved by technology

[0009] The current design of the DCS control system of the unit generally does not design the self-start and stop control system, and the oil system only designs the start and stop sequence control of a single oil burner. At present, the popular configuration methods of

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