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| FLNG液化系统动态特性分析 |
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林日亿1,李小明1,李健2,喻西崇3,李玉星1,孙兴科4
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(1.中国石油大学储运与建筑工程学院,山东青岛 266580;2.中石化天津液化天然气有限责任公司,天津 300457;3.中海油研究总院技术研发中心深水工程重点实验室,北京 100027;4.陕西金山电器有限公司,陕西咸阳 712000)
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| 摘要: |
| 对浮式液化天然气(FLNG)液化系统中丙烷预冷氮膨胀制冷循环的主要设备建立动态模型,以模拟的液化流程参数为初始参数,对丙烷预冷氮膨胀制冷循环在不同扰动形式下进行动态模拟。结果表明:FLNG制冷系统具有很强的惯性特性,并且对海洋晃动的反应非常明显;对同样信号形式,丙烷预冷剂扰动对LNG出口温度响应强度较小、跟踪误差大,同时响应时间比氮气扰动时响应时间短。 |
| 关键词: 浮式液化天然气 开环响应系统 动态分析 特性 |
| DOI：10.3969/j.issn.1673-5005.2013.04.026 |
| 分类号::TE 951; TE 626.7 |
| 基金项目:国家科技重大专项资助项目(2011ZX05026-006-07) |
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| Dynamic characteristics analysis of FLNG liquefaction systems |
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LIN Ri-yi1, LI Xiao-ming1, LI Jian2, YU Xi-chong3, LI Yu-xing1, SUN Xing-ke4
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(1.College of Pipeline and Civil Engineering in China University of Petroleum, Qingdao 266580, China;2.SINOPEC Tianjin Liquefied Natural Gas Limited Company, Tianjin 300457, China;3.CNOOC Research Institute Deepwater Engineering Key Laboratory, Beijing 100027, China;4.Shanxi Jinshan Electric Appliances LTD, Xianyang 712000, China)
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| Abstract: |
| The major equipments dynamic models of the propane precooling and nitrogen expansion refrigeration cycle in FLNG liquefaction system were established. Taking the parameters of simulated liquefaction process as the initial parameters, dynamic simulation on the propane precooling and nitrogen expansion refrigeration cycle under the different forms of disturbance was done. The results show that FLNG refrigeration system has strong inertia, and reacts to ocean shake obviously. For the same signal form, propane refrigerant disturbance has a small response to the outlet temperature of LNG, and has large tracking error. Otherwise, the response time is shorter than the response time of nitrogen disturbance. |
| Key words: floating liquefied natural gas open loop response system dynamic analysis characteristics |
