Abstract: To localize the core design and manufacturing technologies of LNG large - scale ORV and solve the existing technological problems, heat transfer mechanism of high-effective LNG heat-exchanging tube was brought under numerical simulation. LNG large-scale ORV was localized on the basis of research and development of the key manufacturing technology. The equipment was satisfactory for industrial application. The operational results indicated that sea water distribution formed a uniform and stable film on the tube surface. The surface coating of the gasifier has a high-strength combination without any coating coming off. ORV gasification capacity satisfies the process requirements with all the data reaching the standards. The equipment is in stable operation. No leakage, distortion or vibration took place in the operational process. Industrial operation of LNG ORV is in line with the relative technological requirements.

Key words: ORV, high-effective heat exchanging tube, numerical simulation, anti-corrosion coating, LNG

摘要： 为了实现LNG 大型开架式气化器在设计及制造中核心技术的国产化并解决现有技术难题, 通过对LNG 用 高效换热管传热机理进行数值模拟研究, 并在关键制造技术上进行专项开发, 实现LNG 用开架式气化器的国产化。该 设备工业应用良好, 运行结果表明: 海水分布均匀, 在管排表面形成均匀、稳定的液膜; 气化器表面涂层结合强度高, 无任何脱落; LNG 气化器气化能力满足工艺要求, 各项数据达标; 运行状态稳定, 运行过程中无泄漏、变形、振动等 状况; LNG 气化器工业化运行满足相应技术要求。

关键词: 开架式气化器; 高效换热管; 数值模拟; 防腐涂层; LNG