摘要
兰州石化460 kt/a乙烯装置因水质管控不到位,造成裂解气压缩机、丙烯制冷压缩机和乙烯制冷压缩机同时出现透平结垢现象,透平运行效率严重下降,装置被迫降低生产负荷。装置通过2次在线湿蒸汽吹扫方法,改善了结垢透平的运行工况,并通过严格控制炉水水质,保证装置长周期高负荷运行,避免了停车处理而导致的大量物料排放。
Turbine scaling was found simultaneously on the cracking gas compressor,propylene refrigeration compressor and ethylene refrigeration compressor in the 460 kt/a ethylene plant at PetroChina Lanzhou Petrochemical Company due to lack of water quality control,resulting in a serious decline in the operating efficiency of turbines,and the plant was forced to reduce the production load. Two online wet steam purging was carried out to improve the operating conditions of the turbines,and the water quality of the boiler was strictly controlled to ensure the long period operation of the plant at high load,thus avoiding the large amount of material discharge due to the shutdown of ethylene plant for scaling treatment.
出处
《乙烯工业》
CAS
2018年第3期60-64,共5页
Ethylene Industry
关键词
三机
透平结垢
湿蒸汽吹扫
three key compressors
turbine scaling
wet steam purging
