全容式LNG储罐漏热量模拟分析

Simulation Analysis of Leakage Heat of Full Capacity LNG Storage Tank

本文以某160000 m3全容式LNG储罐为例,介绍了全容式LNG储罐保冷方式的基本构成。通过大型分析软件workbench模拟了罐体各部分热量的传递,分析表明在正常工作情况下外罐与罐底交汇处热流量最大。提出对漏热量较大的外罐与罐底交汇处区域进行增加保冷层厚度、改良保冷材料等措施的优化方案。模拟结果可为工程实践提供参考。

In this paper, a 160000 m^3 full capacity LNG storage tank is used as an example to introduce the basic structure of the full capacity storage tank protection. Through the large-scale analysis software workbench, the heat transfer of each part of the tank is simulated, and the analysis shows that the heat flow is the most in the external tank and the bottom of tank, and the other areas are less. This paper proposes an optimized scheme to increase the thickness of the insulation layer and improve the cooling material in the area of the outer tank and bottom of tank. The simulation results can provide reference for engineering practice.