建筑给水排水系统节能设计要求

Design Requirements for Energy Saving of Building Water Supply and Drainage Systems

国家标准《公共建筑节能设计标准》(GB 50189—2005)全面修订增加了给水排水节能设计要求。节水与节能是密切相关的,为节约能耗、减少水泵输送的能耗,应合理设计给水、热水、排水系统,正确计算用水量及合理选用水泵等设备,通过节约用水达到节能的目的。集中热水系统是给水排水设计的主要能耗系统,在设计时应注意热源的选择、水加热或换热站室布置位置、管道布置和保温等设计,力求减少热损失,从而达到降低能耗的目的。

The design requirements for energy saving of building water supply and drainage system were added in the national standard Design Standard for Energy Efficiency of Public Buildings （ GB 50189 -2005）. Water saving is closely related with energy saving. In order to save energy and reduce the energy consumption of water pump delivery, the water supply system, hot water system, drainage system, water consumption of water fixtures or pumps should be designed reasonably to achieve the purpose of energy saving through saving water. Central hot water system is the main energy consumer of the water supply and drainage systems. The selection of heat source, location of water heating or heat exchange station, layout of pipelines and thermal insulation should be considered during the design process, so that the energy saving could be achieved by reducing the heat losses.