异程系统与同程系统的水力稳定性分析和比较  

Comparison and Analysis of Hydraulic Stability in Direct Return System and Reverse Return System

作　　者：符永正[1] 蔡亚桥[1] 

机构地区：[1]武汉科技大学城市建设学院,湖北武汉430070

出　　处：《武汉科技大学学报》2006年第3期289-292,共4页Journal of Wuhan University of Science and Technology

基　　金：湖北省教育厅科研资助项目(D200511009)

摘　　要：采用依次关闭各支路,然后计算未关闭支路流量的方法,分析和对比异程系统与同程系统的稳定性。结果表明,异程系统从离热源最近的支路到最远支路,稳定性依次变差;同程系统的稳定性具有对称性,网路中部的支路稳定性最差,越往两端,支路的稳定性越好;从总体上讲,同程系统的稳定性差于异程系统。By employing the method that shuts each subcircuit, the paper analyzes and compares the hydraulic stability of direct return system （DRS） and reverse return system （RRS）. The results show that ： from the subcircuit that is furthest to the heat source to the nearest one, the stability of DRS becomes gradually worse; the stability of RRS is symmetrical, with the subcircuit in the middle of the pipe-network having the worst stability, while, the nearer to the two ends, the better the stability of the subcircuits is. It＇ s concluded that the overall＇stability of RRS is inferior to DRS.

关 键 词：水力稳定性 耦合干扰 异程系统 同程系统 

分 类 号：TU834.3[建筑科学—供热、供燃气、通风及空调工程]