摘要
我国在“双碳”目标下,清洁能源的需求在逐步增加,但我国的能源结构决定了火电机组在未来一段时间里仍然是发电量的主要来源。大量火电机组承担着调峰任务,部分1000 MW超超临界机组也常处于中间负荷或低负荷运行,造成火电机组平均负荷降低,机组效率差,煤耗偏离设计值较多。同时根据国家能源战略和企业自身经营需要,对于新建机组设计和现役机组升级改造,宽负荷节能是无法回避的问题。本文以2×1000MW超超临界湿冷机组为研究对象,根据现有电厂机组运行情况,对新建机组进行宽负荷冷端优化及冷却系统配置进行深入研究,使新建机组在设计阶段就考虑机组在宽负荷工况下能够节能运行。
Under the“dual carbon”goal,China’s demand for clean energy is gradually increasing,but China’s energy structure determines that thermal power units will remain the main source of electricity generation in the future.A large number of thermal power units undertake the task of peak regulation,and some 1000 MW ultra-supercritical units often operate at intermediate load or low load,resulting in the average load of thermal power units decreasing year by year,poor unit efficiency,and large deviation of coal consumption from the design value.At the same time,according to the national energy strategy and the enterprise’s own business needs.Wide load energy saving operation is an unavoidable problem for the design of new units and upgrade of active units.The paper takes 2×1000 MW ultra supercritical unit as the research object.According to the operation condition of existing power plant units.The wide load cold end optimization and cooling system configuration of newly built units were studied.It is considered that the unit can save energy under the condition of wide load when the new unit is designed.It provides reference for similar engineering design in the future.
作者
孟令国
龙辉
管永庆
王威
倪煜
MENG Lingguo;LONG Hui;GUAN Yongqing;WANG Wei;NI Yu(Northeast Electric Power Design Institute Co.,Ltd.,China Power Engineering Consulting Group,Changchun 130021,China;China Power Engineering Consulting Group Co.,Ltd.,Beijing 100120,China)
出处
《电力勘测设计》
2022年第10期13-18,42,共7页
Electric Power Survey & Design
基金
中国电力工程顾问集团有限公司科学技术项目(DG1-J01-2018超超临界机组宽负荷高效运行系统优化集成设计技术研究)。
关键词
宽负荷
冷端优化
节能运行
wide load
cold-end optimization
energy saving operation
