全焊接管线球阀抵抗地质灾害能力研究
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1.四川飞球集团有限责任公司;2.四川轻化工大学

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TH137.52

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Study on resistance ability of all-welded pipeline ball valve to geological hazards
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Sichuan Flyball Group Co., Ltd.

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    摘要:

    为研究全焊接管线球阀在地质灾害下的安全性,针对地震灾害,参照《建筑抗震设计规范》从PEER数据库选取了两条天然地震波、用Simqke gr软件合成了一条人工地震波作为地震载荷,然后利用时程分析法计算了阀门的地震响应;针对地陷灾害,查阅相关文献及规范,提出了适用于不同管径、不同埋深等的地陷载荷计算公式,并计算了阀门在该载荷下的安全性;结果表明阀门在地震及地陷载荷下,危险位置均出现在左右阀体与管道连接位置,与实际相符,然后利用JB-4732《钢制压力容器—分析设计标准》进行评价,阀门安全裕度较大,在地震及地陷载荷下安全。研究方法为今后同类阀门设计提供了参数依据,同时为今后天然气管道设备及构件抵抗地质灾害能力提供了一种可参考借鉴的手段。

    Abstract:

    To study the safety of all-welded pipeline ball valves under geological disasters.In response to earthquake disasters, two natural seismic waves were selected from the PEER database according to the "Code for Seismic Design of Buildings", and one artificial seismic wave was synthesized using Simqke gr software as the seismic load. Then use the time history analysis method to calculate the seismic response of the valve. Aiming at the subsidence disaster, according to relevant documents and codes, a formula for calculating the subsidence load suitable for different pipe diameters and different buried depths is proposed. Then the safety of the valve under this load is calculated. The results show that under the earthquake and subsidence load, the dangerous positions of the valve appear at the connection position of the left and right valve body and the pipeline, which is consistent with the actual situation. Then use JB-4732 "Steel Pressure Vessel-Analysis and Design Standard" for evaluation. The results show that the valve has a large safety margin and is safe under earthquake and subsidence loads. The research method provides a parameter basis for the design of similar valves in the future, and at the same time provides a reference method for the ability of natural gas pipeline equipment and components to resist geological disasters in the future.

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引用本文

黄志慧,何庆中,王佳,等. 全焊接管线球阀抵抗地质灾害能力研究[J]. 科学技术与工程, , ():

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  • 收稿日期:2021-04-13
  • 最后修改日期:2021-08-30
  • 录用日期:2021-08-31
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