本文阐述四个问题:1.循环水泵的流量应该只有循环流量,不应该为循环流量与循环附加流量之和。2.循环水泵扬程计算公式,在多环路的热水管网中要符合循环附加流量进行流量分配的条件。3.按管道热损失方法计算的循环流量应附加一个安全量。4.循环附加流量应规定一个最小值。 This article addresses four issues: 1. The circulation pump should only have a circulation flow and should not be the sum of the circulation flow and the circulation additional flow. 2. The calculation formula for circulating water pump heads shall comply with the condition of circulating additional flow for flow distribution in the multi-loop hot water pipe network. 3. The circulation flow calculated by the pipe heat loss method should be accompanied by a safe amount. 4. The cycle additional flow should specify a minimum value.