二次泵变流量水系统的设计
Design of variable volume secondary pump water systems
摘要：
介绍了某住宅小区集中供热二次泵变流量水系统的设计，其锅炉和一次水泵的运行台数控制采用温度控制法，二次变频水泵的工作频率及运行台数控制采用测量多点压差进行比较的压差控制方式。通过对系统的运行工况分析，提出了二次泵自动控制设计方案，并指出了需注意的几个问题。
关键词：一次泵 二次泵 变流量 压差控制
Abstract：
Presents the design of variable volume secondary pump water system for a residential quarter, with the operating numbers of boilers and primary pumps controlled by temperature of return/supply water and secondary pumps controlled through the comparison of multipoint pressure differences. Based on the analysis of working conditions of system, puts forward the design scheme of automatic control system for secondary pumps, and the problems deserving to be noticed.
Keywords:primary pump, secondary pump, variable volume, pressure difference control