关键词: S Zorb装置, 反应器接收器, 脱气线, 再生器, 取热盘管, 泄漏, 冲刷腐蚀, 高频振荡,

Abstract:

A company has conducted technical research on operational issues such as reactor receiver degassing line leakage and regenerator heat coil leakage that occurred during the first operating cycle of the S Zorb unit, and has proposed suggestions for process optimization adjustment and engineering technology transformation. During the 2019 major overhaul, the degassing line of the reactor was expanded from DN100 to DN150, with a controlled gas lift rate of less than 670 m³/h, and engineering and technical renovations were made to the heat steam and regeneration air flow control valve of the regeneration system. In the second operating cycle, there were no issues with thinning and leakage of the degassing line or leakage of the regeneration heating coil. In June 2023, during the major overhaul, an inspection was conducted on the parts of the last overhaul to verify the effectiveness of the engineering renovation. After a comprehensive inspection, no traces of erosion were found inside the degassing line, the regeneration heating coil was compressed and found to be qualified, and the appearance inspection was normal, proving that the renovation measures were effective and could meet the goal of “one repair every four years”.

Key words: S Zorb unit, reactor receiver, degassing line, regenerator, heating coil, leakage, erosion corrosion, high frequency oscillation,