沙特某海水泵站水泵选型  

Pump selection of seawater intake pumping station in Saudi Arabia

作　　者：刘超[1] 谢伟东[2] 李彬[1] 汤红岩[1] 

机构地区：[1]中交第四航务工程勘察设计院有限公司,广东广州510230 [2]江苏省水利勘测设计研究院有限公司,江苏扬州225127

出　　处：《排灌机械工程学报》2016年第3期216-219,共4页Journal of Drainage and Irrigation Machinery Engineering

摘　　要：沙特某大型海水泵站的设计、采购遵循API相关标准,项目的海水泵执行标准API 610.业主招标文件前端设计中规定海水泵按额定流量为55 000 m3/h对应扬程为16.1 m进行选型,但通过分析,得知招标文件中规定的主机容量不足;同时,投标阶段海水泵报价偏低,中标后承包商存在商务风险.为了解决技术商务风险,详细的设计通过对泵站前后水位变化情况进行分析,并优化设计,海水泵按正常流量为50 000 m3/h对应扬程为16.1 m进行选型.优化后,导叶体式混流泵运行流量范围为50 000~59 100 m3/h,效率为85%~87%,效率曲线平缓,运行范围位于高效区.优化后主机容量满足项目要求.海水泵由抽出式结构优化为非抽出整体式结构.The design of seawater intake pumping station in a marine infrastructure project in Saudi Arabia and the purchase of the seawater intake pumps for the station should comply with the standard API 610 of centrifugal pumps for petroleum, petrochemical and natural gas industries. In bid docu- ments of the project owner, the seawater intake pumps are subject to 55 000 m3/h capacity and 16.1 m head at the duty point. However, the transformer capacity is insufficient for the power required by the pumps; meanwhile the quoted price for the pumps is slightly lower, presenting a business risk for potential contractors based on a thorough analysis of the documents. To avoid this risk, the variation of seawater level in the intake is analyzed and the intake is optimized, further the capacity is altered to 50 000 m3/h for pump selection. After the selection is optimized, the selected mixed-flow pumps with diffuser can operate in a range of flow rate of 50 000 to 59 100 m3/h at a higher efficiency of 85% to 87% , showing the transformer capacity is satisfactory. At the same time, the optimized pump should be in integrated structure rather than in pull-out one.

关 键 词：立式悬吊泵 流量 API 610 优化设计 抽出式 非抽出式 沙特阿拉伯 

分 类 号：TH311[机械工程—机械制造及自动化]