本文对选择供暖循环泵的几个主要问题进行了分析和探讨。例如 ,选择循环泵时是否要在管网总设计流量和总压力损失基数上乘以 1 1- 1 2的系数 ;高温水锅炉低温水运行时锅炉本体水流阻力的估定 ;关于对循环泵入口和出口压力的限定 ;多台泵并联运行时其单台泵的流量 ,是否要比单台泵独立运行时减少 ;以及循环泵的节能指标等问题 This article has analyzed and discussed several main problems that chooses the heating circulation pump. For example, when choosing a circulating pump, whether to multiply the total pipe network design flow rate and the total pressure loss base by a factor of 1 1 to 1 2; to estimate the water flow resistance of the boiler body when the high-temperature water boiler operates in a low- Outlet pressure limit; when multiple pumps run in parallel, the flow of a single pump is less than when a single pump is running independently; and the energy-saving index of circulating pump and other issues