一次泵变流量系统的设计  

The design of variable primary flow system

作　　者：郝庆[1] 张子平[1] 穆丽慧 

机构地区：[1]河北工程大学 [2]海南元正建筑设计咨询有限责任公司天津分公司

出　　处：《制冷与空调》2007年第6期47-51,共5页Refrigeration and Air-Conditioning

摘　　要：一次泵变流量VPF(variable primary flow)系统是中央空调系统的最新布置形式,与一二次泵系统相比在初投资和运行费用上更具有优势。目前国内一些采用一次泵变流量系统的工程在运行中出现许多问题,本文从制冷机组的选择、旁通流量的设计、机组的启停控制、泵和机组的布置方式、一次泵变流量控制方式的选择、机房外的布置6个方面说明VPF的设计要点。Variable primary flow system is the newest system of center air-conditioning systems, which has large advantages in first-cost and operational cost than primary/secondary systems. Many domestic engineering applying VPF exists many questions. The key of VPF design is advised from six sides of chiller selection, bypass flow design, chiller sequencing, pump and chiller configuration, VPF control modes selection and configuration outside plant.

关 键 词：VPF 设计 一二次泵系统 大流量小温差 

分 类 号：TU831.3[建筑科学—供热、供燃气、通风及空调工程]