电力科技与环保2024，Vol.40Issue(4)：329-337,9.DOI:10.19944/j.eptep.1674-8069.2024.04.001
600 MW亚临界湿冷机组升参数改造技术与工程示范
Research and engineering demonstration on upgrade technology of 600 MW sub-critical wet cooling unit
摘要
Abstract
In order to respond to the carbon peaking and carbon neutrality policy,the shortcomings of low efficiency and high heat consumption of 600 MW units need to be improved. A 600 MW sub-critical wet cooling unit was used to upgrade the technology and raise the temperature of the main and reheating steam to 600 ℃. At the same time,the steam turbine,boiler,generator and auxiliary equipment are reformed to ensure their running stability. After the transformation,the heat consumption of the unit is reduced by 8.3％,the boiler efficiency is increased from 92.3％ to 94.1％,the standard coal is saved about 9000 t per year,the pollutant emission is significantly reduced,and the economy of the unit is greatly improved. It is concluded that by upgrading the technology of the unit and improving the operation parameters of the main and reheated steam,the economy of the unit can be improved to a great extent and the pollution can be reduced to emission. In the transformation process,the first boiler steam water process reengineering,turbine integrated optimization,non-combustion 20％ depth peak regulation and other core technologies,"three reform linkage" energy-saving and consumption reduction effect is remarkable,forming a complete set of sub-critical unit lift parameter transformation technology research and engineering demonstration. It provides some guidance and reference for the technical upgrading of the same type units.关键词
技术改造/深度调峰/设备优化Key words
technological transformation/depth peak regulation/equipment optimization分类
能源科技引用本文复制引用
杨茂祝,王忠宝,孙勇,李德波,孙超凡,尹秋钰..600 MW亚临界湿冷机组升参数改造技术与工程示范[J].电力科技与环保,2024,40(4):329-337,9.基金项目
国家自然科学基金项目(51376161) （51376161）
中国南方电网公司重点项目(NYJS2020KJ004) （NYJS2020KJ004）
燃煤机组深度调峰下稳燃机理及水动力安全关键技术研究项目(NYJS2020KJ005) （NYJS2020KJ005）
