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化工学报  2015 

浸没燃烧式气化器的运行特性及优化

DOI: 10.11949/j.issn.0438-1157.20150688, PP. 198-205

Keywords: LNG气化器,浸没燃烧式气化器,传热,模型,优化,水浴温度

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Abstract:

建立了浸没燃烧式气化器(SCV)传热管的传热计算模型,给出了计算流程,并且通过实际运行参数验证了模型的准确性。基于该模型计算分析了某型SCV额定工况时管内外的温升曲线以及传热系数曲线;讨论了LNG流量、入口参数以及壁面污垢热阻对水浴温度的影响;根据计算结果提出了加装管内扰流装置以强化传热,当管内传热强化系数为3.0时可在原结构基础上使水浴温度降低14.8℃,或在水浴温度保持不变的条件下减少23%的传热面积。

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