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| Mechanical Analysis and Optimization Design of Non-standard Supports for Nuclear Pipes |
| Received:June 11, 2019 Revised:July 27, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2019.12.008 |
| KeyWord:pipe support non-standard mechanical analysis finite element calculation optimization design |
| Author | Institution |
| WANG Ji-xiao |
China Nuclear Power Engineering Co., Ltd, Beijing , China |
| GONG Zhen-bang |
China Nuclear Power Engineering Co., Ltd, Beijing , China |
| LIU He-tong |
China Nuclear Power Engineering Co., Ltd, Beijing , China |
| GAO Qi-le |
China Nuclear Power Engineering Co., Ltd, Beijing , China |
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| Abstract: |
| Objective To propose optimized design ideas and solutions of support based on mechanical analysis of pipe support. Methods Pipe supports play a crucial role in ensuring the safe operation of the pipeline system. In order to meet its supporting and anti-seismic functions, non-standard designs are usually adopted for nuclear pipeline supports with complex working conditions and strict requirements. In this paper, the mechanical calculation and evaluation methods of non-standard supports for nuclear pipes were studied in depth, to find out the items that didn’t meet the requirements on specification for pipe design and propose a non-standard stent optimization design scheme based on the evaluation results of finite element calculations. Results First of all, for the lack of the overall structural rigidity and stability of the supports, structural modification measures, such as increasing the oblique support and strengthening constraints were taken; furthermore, the optimization plan for strengthening the strength of the supporting steel beam was determined to solve the problem that the stress exceeded the specification allowable limit value; finally, for the pipeline connection area where the problems were concentrated, the redesign scheme of the local support component was proposed. Conclusion The optimization scheme proposed in this paper can provide reference and guidance for the design of non-standard pipeline supports, and meet the nuclear power standard specifications and design requirements. |
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