高层建筑顶部数层在火灾初期的消防压力，由于高位水箱设置高度不够，往往达不到规范的要求消防管网由于压力下降也影响灭火文中阐述的ＸＱＺＤ－Ｂ天面（屋面）增补压消防专用给水设备妥善地解决了这类问题 The fire pressure at the top of several high-rise buildings in the early stage of a fire is often not up to standard due to the insufficient height of the high water tank. The pressure drop of the fire pipe network also affects the XQZD-B roof (buildings) pressure increase described in the fire extinguishing article. Fire-fighting water supply equipment properly solves this type of problem.