利用市政管网余压的建筑给水节能工程应用

Engineering Application on Building Water Supply and Energy Saving Using Municipal Pipe Network Residual Pressure

采用管网叠压供水方式,可充分利用市政管网压力为建筑低层供水,通过加装旁通管并配合加压泵,以克服气候和季节对城市自来水管网的压力变化影响。为提高管路效率,必须减少给水系统管路阻力,同时要确保管路的密封性完好,从而降低能量损耗。通过小区泵站改造前后耗电量对比发现,采用余压利用系统之后,节能效果显著。

Direct pressure-add water supply technology can make full use of municipal pipe network pressure for water supply of the construction lower zone for fitting the bypass pipe and the pressure pump for overcoming climate and season influence on the pressure change from urban water distribution network. The resistance of water supply system pipeline must be reduced in order to improve the efficiency of pipeline, at the same time tightness of the pipeline should be in good condition so as to reduce the energy loss. By the comparison of electricity consumption before and after the transformation of the residential pumping station, it was showed that energy saving effect was significant after the use of residual pressure system.