摘要
针对某化工装置蒸汽凝液管网多处发生振动、蒸汽压力低、凝液罐无法闪蒸的现象,经过现场测试和蒸汽凝液管网流体模拟计算,从而查找出蒸汽凝液管网运行问题的主要原因。分析结果表明,凝液发生二次闪蒸、凝液管线管径偏小、流体汇合时流向对撞是导致蒸汽凝液管网发生振动的主要原因;调节阀开度偏小导致了蒸汽压力低,从而造成凝液罐无法闪蒸。依据分析进行了蒸汽凝液管网改造,改造后振动现象消失,凝液由泵送出。
According to the phenomenon of the steam condensate pipe vibrating, low vapor pressure and condensate tank can＇t flashing in a chemical plant, the simulation and field test for the steam condensate pipeline were carried out. The analysis results show that condensate flashing into two phases, pipe diameter being too small, and the two streams meeting face to face were the main reason for the vibration of condensate pipeline. Condition valve opening too small resulted in the steam pressure being low, which resulted in the condensate tank can ＂t flashing. Based on the analysis, transformation were carried out. After the transformation, the vibration disappeared, and the condensate were all sent out by pump.
出处
《山东化工》
CAS
2017年第14期119-120,122,共3页
Shandong Chemical Industry
关键词
蒸汽凝液系统
问题分析
管网改造
steam condensate, problem analysis, pipeline transformation,
