6F级燃机机组降低余热锅炉排烟温度的方案比较
陈皓宇，徐蕾
（中国能源建设集团江苏省电力设计院有限公司发电工程公司，江苏 南京 211100）
摘要： 结合6F级燃机机组热电联产项目的实际情况，提出了3 种降低余热锅炉排烟温度的优化方案。技术经济比较
结果表明，采用余热锅炉尾部增加热水加热器的方案能明显降低锅炉的排烟温度，提高锅炉的效率，同时热水加热器产
生的热水能为厂内其他设备提供热量，减少电厂的投资及运行成本，提高电厂的收益。
关键词： 燃气轮机；联合循环；余热锅炉；排烟温度
中图分类号： TK229.92⁺9     文献标识码： A     文章编号： 2095-0802-(2021)07-0075-03
Scheme Comparison for Reducing Exhaust Temperature of Waste Heat Boiler in 6F Gas-steam
Combined Cycle Units
CHEN Haoyu, XU Lei
(Power Engineering Corporation, Jiangsu Power Design Institute Co., Ltd., China Energy Engineering Group, Nanjing 211100,
Jiangsu, China)
Abstract: Based on the actual situation of the heat and power cogeneration project of 6F gas-steam combined cycle units, this
paper proposed three optimization schemes to reduce the exhaust temperature of the waste heat boiler. The technical and
economic comparison results showed that the scheme of adding water heat exchanger at the tail of the waste heat boiler could
significantly reduce the exhaust temperature and improve the efficiency of the boiler. At the same time, the hot water generated by
the water heat exchanger could provide energy to other equipment in the plant. The scheme could reduce the investment and
operating costs, and increase the revenue of the power plant.

Key words: gas turbine; combined cycle; waste heat boiler; exhaust temperature