天然气与石油2023，Vol.41Issue(6)：21-27,7.DOI:10.3969/j.issn.1006-5539.2023.06.004
湿陷性黄土地区离心式压缩机管道应力分析
Stress analysis of centrifugal compressor piping in collapsible loess area
摘要
Abstract
Collapsible loess is a special type of soil,susceptible to significant subsidence due to structural damage when saturated with water.Projects situated in collapsible loess areas are likely to experience uneven settlement as a result of varying moisture absorption and applied surface loads.To explore the impact of this uneven settlement on compressor piping,we initially considered the differential settlement displacement between the compressor and piping foundations,simulating uneven settlement specific to the characteristics of collapsible loess regions.The stress analysis of centrifugal compressor piping was conducted using Caesar Ⅱ software.This paper provides an in-depth outline of the strategies used in determining verification conditions,adjusting piping flexibility,and minimizing nozzle loads.Through analysis and calculation,the design scheme of using expansion joint and variable spring was ruled out.In conclusion,a constant force spring was implemented to address the issue of exceeding allowable loads on the compressor nozzle due to uneven settlement,thus complying with the manufacturer's specifications.This serves as an invaluable reference for designing similar centrifugal compressor piping systems in areas with challenging geological conditions and uneven settlement.关键词
湿陷性黄土/不均匀沉降/离心式压缩机/应力分析Key words
Collapsible loess/Uneven settlement/Centrifugal compressor/Piping stress analysis引用本文复制引用
代长林,郭礼,高建林,何九章,雷本勇,王清扬..湿陷性黄土地区离心式压缩机管道应力分析[J].天然气与石油,2023,41(6):21-27,7.基金项目
中国石油集团工程股份有限公司科研项目"800 万吨级超大型LNG成套技术研究"(KY2019-01) （KY2019-01）
