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CASE STUDY OF SEISMIC RESPONSE FOR SHELL KEY GASIFICATION EQUIPMENT BASED ON TRANSIENT DYNAMIC ANALYSIS

作者:Kenny Shen ⁄ 时间:2016年05月14日 ⁄ 分类: 论文 评论:0 Abstract

Coal gasification is a key technology for clean coal conversion with high efficiency. During the past decade, more than twenty Shell Key Gasification Equipments (SKGE) used in the Shell Coal Gasification Process (SCGP) have been built in coal-to-chemicals industry in China. SKGE is composed of Gasifier and Syngas cooler which are connected by Transfer duct. The support skirt of the Gasifier base is fixed, while the Syngas cooler side is supported by a constant hanger (floating support).

 

In this paper, a FE model of the largest 2000-ton SKGE system in China is established by using ANSYS. The global dynamic response under the seismic load is simulated. In order to verify the correction of the calculation, the results are also compared with that by using ABAQUS.

 

Compared to the traditional static analysis, it can be found that the deformation and stress distribution, the force and moment on several specified cross sections of SKGE change over time under seismic load based on the transient dynamic analysis.

 

As the result of the seismic analysis is the prerequisite and foundation for accurate calculation of each key part (e.g. connection between Transfer duct and Gas reversal chamber), the seismic analysis is one of the most important analyses in the Gasification design, which will ensure the essential safety of SKGE system.

 

KEY WORD: Seismic analysis, Gasification equipment, Time-history analysis, Great Mass Method, FEA

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