双管热水供暖系统重力循环压力的探讨  

On Nature Cycle Pressure of Machine Cycle with Double Tube Hot Water Heating System

作　　者：邱玉瑞[1] 朱玉娜[2] 

机构地区：[1]南京建筑工程学院城建系,南京210009 [2]东南大学,南京210096

出　　处：《南京建筑工程学院学报》1999年第3期60-63,70,共5页Journal of Nanjing Architectural and Civil Engineering Institute(Natural Science)

摘　　要：针对《实用供热空调设计手册》中提出的“下供下回式双管热水供暖系统仅适用于四层以下建筑”的规定，分析双管下供下回式系统垂直热力失调比上供下回式系统减少的原理。并通过改进系统设计较好地解决了下供下回式热水供暖系统排放空气的问题。并用实际工程案例证明，双管下供下回式系统可用于６ 层，甚至８ 层建筑的热水供暖系统。It is brought forward in Heating Air Condition Design Handbook that machine cycle with double tube underside feed and underside return flow hot water heating system is only applied to the buildings which are no higher than four stories.The theory is analysed in this paper,that upright thermal power maladjustments in double tube underside feed and underside return flow heating system is less than those in double tube upside feed and underside return flow heating system.The problem how to discharge air in the double tube underside feed and underside return flow heating system is solved by improvement of system design.Accordingly,double tube underside feed and underside return flow heating system can be used to the buildings which are as high as six even eight stories.This has been proved in practical engineering cases.

关 键 词：双管 供暖系统 重力循环压力 

分 类 号：TU832.13[建筑科学—供热、供燃气、通风及空调工程]