大中型燃煤发电厂上煤系统降出力去冗余可行性研究

Feasibility research on redundancy removal and derating of coal handling systems in large and medium coal-fired power plants

当前燃煤发电机组年利用小时数呈下降趋势,上煤系统实际出力存在较大冗余。根据发电市场的实际状况及预期,分析上煤系统运行可靠性及出力,提出可行的去冗余优化建议。上煤系统双路配置的前提下,降低出力实现去冗余优化可行。在新建或改建项目中可考虑降低上煤系统出力,优化系统配置。

At present, the working hours of coal-fired units are declining, and there is great redundancy in the output of coal handling systems. Based on the status quo and expectation for power generation market, it analyzed the operational reliability and output of the coal handling systems and proposed feasible redundancy removal schemes.Under the premise of dual-configuration for coal handling systems, it is feasible to cut the redundant ouput. It is recommended to reduce the output of the coal system and optimize the system configuration in new or rebuilt projects.