摘要
燃用低热值高炉煤气燃机通常采用焦炉煤气作为值班燃料,但由于值班燃料净化工艺限制和压缩系统不稳定易造成燃机运行故障。为解决由此引起的燃机运行瓶颈,将零值班技术应用到燃机运行中,即在满足一定条件下,采用值班高炉煤气替代值班焦炉煤气而减少焦炉煤气实际使用量。分析了燃机零值班技术的基本原理、管路系统改造、燃料热值应用范围、零值班与值班模式的切换条件、新增连锁保护、零值班模式控制流程、增加的经济效益等,并通过零值班试运行的试验数据验证了零值班技术的可行性。研究结果表明,由于焦炉煤气燃料问题引起的燃机故障率可通过零值班技术升级而大大降低,同时该项技术可为企业节约成本2 000万元/年台。
Coke oven gas （COG） is usually used as pilot fuel gas for blast furnace gas （BFG） gas turbine. However, because of the limitation of COG purification process and instability of compression system, turbine easily break down, pilot COG fuel gas became a bottleneck for BFG GT good operation. In order to solve this problem, zero pilot fuel gas technology was applied to GT operation. That means, during GT operation, pilot COG was replaced by pilot BFG under certain conditions. The theory basis, new piping system, fuel calorie application range, operation condition, interlock protection, technological process and economic benefits to zero pilot fuel gas technology were analysed, and the test operation data of zero pilot fuel gas technology verified its feasibility. The experimental results indicate that zero pilot fuel gas technology for BFG gas turbine could reduce the GT fault rate because of pilot COG, and it could saving the lost of twenty million Yuan per year to the Gas Turbine user.
出处
《机电工程》
CAS
2014年第8期1017-1021,共5页
Journal of Mechanical & Electrical Engineering
关键词
燃气轮机
高炉煤气
焦炉煤气
零值班技术
gas turbine
blast furnace gas（BFG）
coke oven gas（COG）
zero pilot fuel gas technology
