介绍传统的二次加压供水方式和采用无负压管网增压稳流给水设备的利弊。在城市供水管网允许直接吸水的前提下,比较传统的二次加压供水方式和采用无负压管网增压稳流给水设备的运行费用的经济性和节能性,提出采用无负压管网增压稳流给水设备更经济,更节约。 Introduce the traditional secondary pressure water supply method and the advantages and disadvantages of using non-negative pressure pipe network pressurization steady flow water supply equipment. Under the premise that the urban water supply pipe network allows direct water absorption, the conventional secondary pressurized water supply method and the economical and energy-saving features of the operation cost of the pressurized water supply equipment without a negative pressure pipe network are adopted, and the use of a negative pressure pipe is proposed. The net pressurized water supply equipment is more economical and more economical.