真空垃圾儲運管道彎頭沖蝕與優(yōu)化研究

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【中圖分類號】：TU81 【文獻(xiàn)標(biāo)志碼】：A 【文章編號】：1008-3197（2025）03-47-06

【DOI編碼】：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

氣力垃圾輸送系統(tǒng)通過預(yù)先鋪好的管道，采用負(fù)壓技術(shù)將生活垃圾送到中央垃圾收集站；與傳統(tǒng)垃圾收運模式相比，具有運行環(huán)境好、效率高、勞動強(qiáng)度低及自動化程度高等優(yōu)點2。（剩余6507字）