Application Discussion of 20%Load Depth Peak Regulation Technical Scheme for A 600 MW Sub-critical Power Unit
Coal power units will be the most important regulatory power source in the new power system,and more and more coal power units will participate in deep peak regulation.The existing units are generally faced with problems at low load such as stable combustion of boiler,overtemperature of heating surface,operation of denitration system,safety of turbine,etc.In this paper,a 600 MW sub-critical power unit was tested for depth peak regulation,and the bottleneck of 20%load depth peak regulation was obtained.Technical application scheme such as boiler burner optimization,coal mill separator transformation,foced fan transformation,ash blowing optimization of boiler horizontal flue duct,auxiliary steam system transformation and control logic optimization are put forward to achieve 20%load depth peak regulation of the unit for breaking the bottleneck.
depth peak regulationtest for depth peak regulationbottlenecktechnical application scheme
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