摘要
基于热力系统的全面分析计算方法,对1 000 MW超超临界机组增设外置式蒸汽冷却器的经济性收益及影响作了详细的计算分析。结果表明:通过对高压加热器增设单级串联外置式蒸汽冷却器,可使机组热耗整体降低约14.5kJ/(kW·h),经济效益明显。
By thermal-dynamic calculation analysis, the economy of a 1 000 MW ultra supercritical power unit with external steam cooler was calculated. Results show that by adding an external steam cooler to the high-pressure heater in single-stage series arrangement, the unit heat rate can be reduced by 14.5 kJ/（kW, h）, indicating obvious economy of the unit,
出处
《发电设备》
2015年第5期348-352,共5页
Power Equipment
关键词
超超临界机组
汽轮机
热力循环
蒸汽冷却器
热经济性
ultra supercritical unit
steam turbine
thermal cycle
steam cooler
thermal economy
