减阻技术在集中供热与空调水输配系统中的应用

Application of drag reduction in the water distributing pipelines of district heatting and air-conditioning

集中供热与空调系统在我国已经成为耗能大户 ,其中大量能耗消耗在水泵上用来输送热水或冷冻水、冷却水。减阻技术在集中供热及空调水输配系统的应用可以极大地降低泵耗 ,从而具有广阔的节能前景。本文介绍了可用来降低泵耗的粘性减阻技术的减阻机理、减阻方法 ,并介绍了国、内外减阻技术在暖通空调领域的应用研究情况。

District heating and air-conditioning have consumed lots of energy in China.Most of the energy are consumed by water pump to distribute hot water,refrigerant water and cooling water.The technology of drag reduction can reduce consumed energy by water pump,so it is would be used widely in energy conservation.The paper addresses the mechanism of drag reduction and the methods of it which can be used in district heating and air-conditioning,and presents the application,research of the drag reduction in the world.