绞吸船疏浚中粗砂时泥泵叶轮更换策略分析  

Replacement strategy of mud pump impeller in medium-coarse sand conveying by CSD

作　　者：赵国权 袁超哲 魏建峰 骆佳成 ZHAO Guo-quan;YUAN Chao-zhe;WEI Jian-feng;LUO Jia-cheng(CCCC Shanghai Dredging Co.,Ltd.,Shanghai 200002,China;CCCC National Engineering Research Center of Dredging Technology and Equipment Co.,Ltd.,Shanghai 200082,China)

机构地区：[1]中交上海航道局有限公司,上海200002 [2]中交疏浚技术装备国家工程研究中心有限公司,上海200082

出　　处：《中国港湾建设》2024年第5期98-102,共5页China Harbour Engineering

摘　　要：大型绞吸船中粗砂输送泥泵叶轮磨损严重,导致泥泵性能下降、油耗增加,针对目前通过泥泵运行过程振动情况来判定叶轮更换时机的现状,分析泥泵不同磨损阶段工效变化特性,对比不同累计输送方量下泥泵更换的成本投入、产能提升和整体经济效益,为泥泵叶轮更换策略优化提供指导。结果表明,1000万m^(3)的工程在200万m^(3)时更换叶轮对比300万m^(3)时更换叶轮,其预计可节省80.1 t燃油;累计输送方量250万m^(3)时,建议达到300万m^(3)或报废后更换,该泥泵叶轮更换策略能显著降低施工成本、实现节能减排。The large CSD mud pump impeller is seriously worn in medium-coarse sand conveying,resulting in a decrease in the performance of the mud pump and an increase in fuel consumption.According to the current status of determining the timing of impeller replacement through the vibration of mud pump during construction,this paper analyzes the efficiency change characteristics of mud pump in different wear stages,compares the cost input,capacity improvement and overall economic benefits of pump impeller replacement under different cumulative conveying volumes,and provides guidance for optimizing mud pump impeller replacement strategies.The results indicate that when the impeller is replaced at 2 million m^(3)compared with 3 million m^(3)for a 10 million m^(3)project,80.1 tons of fuel can be saved,and when the cumulative conveying volume is 2.5 million m^(3),it is recommended to replace the impeller after reaching 3 million m^(3)or scrapping.The replacement strategy of the impeller of the mud pump can significantly reduce construction costs,and achieve energy conservation and emission reduction.

关 键 词：绞吸船 中粗砂 叶轮 磨损 更换策略 

分 类 号：U674.31[交通运输工程—船舶及航道工程]