真空垃圾储运管道弯头冲蚀与优化研究

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【中图分类号】：TU81 【文献标志码】：A 【文章编号】：1008-3197（2025）03-47-06

【DOI编码】：10.3969/j.issn.1008-3197.2025.03.012

Research on Erosion and Optimization of Elbows in Vacuum Waste Storage and Transportation Pipelines

XU Yunlong1，LINGHU Yan²，ZHENG Kunlong²，LIU Xiaomin1*，ZHOU junlong'，GUAN Jian³

（1.China ConstructionSixthEnginering BureauCo.Ltd.，Tanjin3O71，China;2.ChinaStateCostructionSilkroadCostruction

InvestmentGroupCo.Ltd.，Xi'an7061，China;3.ScholofCivilEnginering，TianjinUrbanConstruction University，anjin 300384，China）

【Abstract】：Inresponse to the problem of erosion and wear causedby gas-solid two-phase flow in domestic waste pneumatic conveying pipelines，based on turbulence and erosion theory，and considering the turning radius，turning angle，and garbage particle size of the bend，COMSOL software was used to study the garbage movement characteristics and erosion behavior inside the bend under pneumatic conveying conditions.The results showed that garbage particles first gather together in the bend of the pipeline，and after colision，they move along thereflection direction and diffuse inanX shape towards both sides.The erosion area was mainly locatedonthe outersideof the inner wall ofthe bend，and thearea with the highest erosionrate was distributed in a "herringbone" shape；When designing pipeline structures，it is advisable to choose bends with smallturning radii and large turning angles，and limit the entry of garbage to control the particle size of garbage.

【Key words】： vacuum garbage storage and transportation pipeline;elbow;erosion

气力垃圾输送系统通过预先铺好的管道，采用负压技术将生活垃圾送到中央垃圾收集站；与传统垃圾收运模式相比，具有运行环境好、效率高、劳动强度低及自动化程度高等优点2。（剩余6507字）