沿江 LNG 接收站气化器选型及能量综合利用

Selection of Gasifiers and Comprehensive Utilization of Energy for LNG Terminals Along the Yangtze River

摘要

随着全球能源结构向低碳化转型，液化天然气（LNG）作为清洁能源的重要性日益凸显。沿江LNG接收站因受限于长江生态保护政策与取水条件，其汽化器选型及热能综合利用面临独特挑战。本文以长江下游某LNG接收站项目为例，系统分析了开架式气化器（ORV）、中间介质式气化器（IFV）和浸没燃烧式气化器（SCV）的技术特性与适用场景，提出基于炼钢厂循环水余热利用的综合方案。研究表明：国产IFV设备在运行成本、占地面积及环境适应性方面优势显著，结合钢厂循环水（温度≥30℃、流量5620t/h）可实现冷热联供，年节能率达18.5%，减少碳排放2.3万吨。本研究为沿江LNG接收站的可持续设计提供了技术经济一体化解决方案。

Abstract

As the global energy structure transitions towards low carbon, liquefied natural gas (LNG) is becoming increasingly important as a clean energy source. LNG receiving terminals along the Yangtze River face unique challenges in vaporizer selection and thermal energy utilization due to restrictions imposed by Yangtze River ecological protection policies and water intake conditions. This paper takes a project at an LNG receiving terminal downstream of the Yangtze River as a case study, systematically analyzing the technical characteristics and application scenarios of open rack vaporizers (ORVs), intermediate medium vaporizers (IFVs), and submerged combustion vaporizers (SCVs). It proposes a comprehensive solution based on the utilization of waste heat from steel mill circulating water. The study shows that domestically produced IFV equipment has significant advantages in operating costs, footprint, and environmental adaptability. Combined with steel mill circulating water (temperature ≥ 30℃, flow rate 5620t/h), it can achieve combined heat and power supply, with an annual energy saving rate of 18.5% and a reduction in carbon emissions of 23,000 tons. This research provides an integrated technical and economic solution for the sustainable design of LNG receiving terminals along the Yangtze River.

关键词

液化天然气（LNG） / 中间介质式汽化器（IFV） / 循环水利用 / 冷热联供 / 低碳经济

Key words

liquefied natural gas (LNG) / intermediate medium vaporizer (IFV) / circulating water utilization / combined heat and power supply / low carbon economy

参考文献

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[3] 顾安忠. 液化天然气技术手册[M]. 北京: 机械工业出版社, 2010.