实现多泵并联高效运行的工程实践  

Engineering Practices of Achieving Efficient Operation of Multiple Pumps in Parallel

作　　者：崔燕 王志鹏 CUI Yan;WANG Zhipeng

机构地区：[1]泰安市泰山城区热力有限公司,山东泰安271000 [2]泰安市公用事业服务中心,山东泰安271000

出　　处：《煤气与热力》2024年第8期14-16,23,共4页Gas & Heat

摘　　要：以某中继泵站为例,对多泵并联的输出能力和水泵选型方法进行分析。造成水泵工作点左移、流量不足的原因为系统阻力偏大。改造后,水泵工作特性与管路阻力特性协调,每台水泵均工作在高效区。推荐选型方法的流量富裕系数取1.05~1.10。常规选型方法因过度考虑并联水泵数量对流量富裕系数的影响,流量富裕系数选取过大。与常规选型方法相比,按推荐选型方法选取的多泵并联系统可降低总耗电功率,提高总效率。Taking a relay pumping station as an example,the output capacity of multiple pumps in parallel and the pump selection method are analyzed.The reason for the left shift of the water pump working point and insufficient flow rate is due to excessive system resistance.After the renovation,the working characteristics of the pump are coordinated with the resistance characteristics of the pipeline,and each pump works in the high-efficiency area.The flow margin coefficient of the recommended selection method is 1.05-1.10.The conventional selection method excessively considers the influence of the number of parallel pumps on the flow margin coefficient,resulting in excessively large flow margin coefficient selection.Compared with the conventional selection method,the multi-pump parallel system selected according to the recommended selection method can reduce the total power consumption and improve the overall efficiency.

关 键 词：多泵并联 高效运行 选型 

分 类 号：TU995.3[建筑科学—供热、供燃气、通风及空调工程]