浸没燃烧式气化器的运行特性及优化

doi:10.11949/j.issn.0438-1157.20150688

化工学报 ›› 2015, Vol. 66 ›› Issue (S2): 198-205.DOI: 10.11949/j.issn.0438-1157.20150688

浸没燃烧式气化器的运行特性及优化

齐超¹, 王博杰¹, 易冲冲¹, 匡以武¹, 王文¹, 许佳伟², 黄宇²

1. 上海交通大学制冷与低温工程研究所, 上海 200240;
2. 中海石油气电集团有限责任公司, 北京 100027

收稿日期:2015-05-25 修回日期:2015-06-02 出版日期:2015-08-31 发布日期:2015-08-31
通讯作者: 王文

Operation characteristics and optimization of submerged combustion vaporizer

QI Chao¹, WANG Bojie¹, YI Chongchong¹, KUANG Yiwu¹, WANG Wen¹, XU Jiawei², HUANG Yu²

1. Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai 200240, China;
2. CNOOC Gas & Power Group, Beijing 100027, China

Received:2015-05-25 Revised:2015-06-02 Online:2015-08-31 Published:2015-08-31

摘要/Abstract

摘要：

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。

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

Abstract:

A heat transfer model of submerged combustion vaporizer(SCV)heat transfer tube was established and the calculation flow was also presented.The accuracy of this model was verified by the analysis of an engineering example.Based on a certain SCV,the curves of LNG temperature and heat transfer coefficient along the tube were calculated and analyzed in rated condition.The influence of LNG flow rate,LNG inlet temperature,LNG inlet pressure and fouling resistance coefficient on the water bath temperature was discussed.Based on the results above,a tube insert was recommended to enhance the heat transfer.When the heat transfer enhancement coefficient is 3.0,the bath water temperature could be decreased by 14.8℃ if the length of heat transfer tube keeps invariant.Meanwhile,the heat transfer area could be reduced by 23% if the bath water temperature keeps invariant.

Key words: LNG vaporizer, submerged combustion vaporizer, heat transfer, model, optimization, water bath temperature

中图分类号:

TK124

齐超, 王博杰, 易冲冲, 匡以武, 王文, 许佳伟, 黄宇. 浸没燃烧式气化器的运行特性及优化[J]. 化工学报, 2015, 66(S2): 198-205.

QI Chao, WANG Bojie, YI Chongchong, KUANG Yiwu, WANG Wen, XU Jiawei, HUANG Yu. Operation characteristics and optimization of submerged combustion vaporizer[J]. CIESC Journal, 2015, 66(S2): 198-205.

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浸没燃烧式气化器的运行特性及优化

Operation characteristics and optimization of submerged combustion vaporizer

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