2008•Jiangsu Electrical EngineeringRequires access

Transformation for Feed-water System of 350 MW Import Unit and Optimization for Boiler Feed Mode

Shao Fei-yue

Abstract

The design and operation of feed-water system of 350 MW import unit are introduced.Some problems on steam distribution mechanism of feed pump turbine and feed-water regulation are analyzed in detail.Through transforming the feed-water system,the operation security and flexibility are improved.Boiler feed mode is proposed to optimize during startup and shutdown period,turbine-driven feed pump instead of motor-driven feed pump is used to control boiler feed-water,the economy of units is improved.

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Key concepts: Boiler (water heating), Boiler feedwater pump, Engineering, Shutdown, Control system, Boiler water, Boiler feedwater, Process engineering