摘要
2019年1月以来,大庆石化330 kt/a乙烯装置稀释蒸汽发生量逐渐降低,导致外引中压蒸汽流量增加。通过对稀释蒸汽系统的全面排查,确定稀释蒸汽发生量降低是因稀释蒸汽系统换热器的换热能力降低及炉水回收罐液位控制阀内漏所致。通过对换热器进行高压水清洗及更换内漏阀门,增加了稀释蒸汽发生量,达到了节能减排的目的。
Since January 2019,the dilution steam generation of the 330 kt/a ethylene plant in Daqing has gradually decreased,resulting in the increased flow of outsourcing medium pressure steam.By comprehensively investigating the dilution steam system,it was confirmed that the decrease of dilution steam generation was caused by the reduced heat exchanger capacity of dilution steam system and the leakage in the liquid level control valve of furnace water recovery tank.By carrying out high pressure water cleaning of the heat exchanger and replacing the leaked valve,the dilution steam generation increased,and energy saving and emission reduction were achieved.
作者
善世文
Shan Shiwen(PetroChina Daqing Petrochemical Company,Heilongjiang,Daqing,P.C.163318)
出处
《乙烯工业》
CAS
2022年第3期26-30,I0001,共6页
Ethylene Industry
关键词
稀释蒸汽发生
换热器结垢
清洗
dilution steam generation
fouling of heat exchanger
cleaning
