丙烷预冷系统对FLNG晃动条件的适应性实验研究

发布时间：2019-01-01 12:27

【摘要】：通过建立一套带有液位扰动系统的丙烷预冷液化天然气实验装置,研究丙烷预冷系统对浮式液化天然气装置(FLNG)晃动条件的适用性。实验中通过对丙烷分离器不同液位进行液位扰动来模拟晃动条件,分析丙烷预冷系统换热器在晃动条件下的温度特性。结果表明:丙烷分离器液位较低时,液位扰动对换热器的温度影响较大;随着液位的升高,液位扰动对换热器的温度影响不断减小;当液位达到一定高度后,液位扰动对换热器温度影响很小。丙烷预冷系统适用于FLNG,但在FLNG上使用须提高丙烷分离器的液位高度或分离器的位置,以降低晃动时液位波动对换热器的影响,因此,在设计时须加强安全设计和危险评估。
[Abstract]:The applicability of propane precooling system to (FLNG) sloshing conditions of floating liquefied natural gas (LNG) unit was studied by establishing a set of experimental equipment with liquid level disturbance system for propane precooled liquefied natural gas (LNG). In the experiment, the sloshing conditions were simulated by disturbing the liquid level of propane separator at different liquid levels, and the temperature characteristics of the heat exchanger in propane precooling system under the sloshing condition were analyzed. The results show that when the liquid level of propane separator is low, the temperature of the heat exchanger is affected greatly by the level disturbance, and the influence of the level disturbance on the temperature of the heat exchanger decreases with the increase of the liquid level. When the liquid level reaches a certain height, the level disturbance has little effect on the temperature of the heat exchanger. Propane precooling system is suitable for FLNG, but should be used on FLNG to increase the liquid level height of propane separator or the position of separator in order to reduce the influence of liquid level fluctuation on heat exchanger during sloshing. Therefore safety design and risk assessment should be strengthened in design.
【作者单位】：中海石油气电集团有限责任公司;
【基金】：“十二五”国家科技重大专项“大型FLNG/FLPG、FDPSO关键技术(编号:2011ZX05026-006)”部分研究成果
【分类号】：TE96

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