摘要
天津IGCC示范电站的燃气轮机采用轻柴油和低热值的合成气为燃料。合成气由气化炉产生,先经过净化脱硫再通过混合加湿系统进入燃气轮机。在合成气切换过程中,经常会出现燃气轮机入口燃料温度波动、燃烧状况不稳定的问题,严重时可直接触发连锁跳机。对影响燃气轮机入口合成气温度的各种因素进行了分析,认为入口管路积水是导致入口合成气温度降低并触发跳机的主要原因。根据分析的结果,通过调整工艺条件、加设管道疏水设备、优化控制系统逻辑等多个方面解决了此类问题的再次发生。
The gas turbine in Tianjin IGCC demonstration power plant is fueled with light diesel oil and the synthesis gas with low calorific value.After desulfurization,the synthesis gas produced in the gasifier enters the gas turbine through the gas hybrid humidification system.In the synthesis gas exchange process,problems such as the temperature fluctuation in the entrance,the instability of combustion condition occur frequently,resulting in the chain tripping under some severe circumstances.The entrance temperature is a major factor that affects the stable operation of the gas turbine.In this article,the factors that influence the entrancetemperature change are analyzed.It is concluded that water accumulated inside the turbine is the main cause of the entrance temperature decrease and direct tripping.Based on the analysis,the technological conditions,the pipeline drainage equipments and the system control logic are improved to prevent such problems from occurring again.
作者
丁建博
赵雁鹏
王健
DING Jianbo;ZHAO Yanpeng;WANG Jian(Huaneng Tianjin IGCC Co., Ltd., Tianjin 300452,China)
出处
《中国电力》
CSCD
北大核心
2018年第3期1-6,共6页
Electric Power
基金
国家科技支撑计划项目(2014BAA05B02)~~
