水喷淋头是建筑物中控制初期火灾的有效装置。最近美国“中央自动喷淋公司”研制成功的一种新型自动启闭式水喷淋头,在火灾被控制后能自动关闭,从而减少了常见水喷淋头的水溃损失,并可减少用水量。这种自动关闭式的水喷淋头也能利用现有设备加以改装。自动启闭式水喷淋头的工作原理是喷淋头受一个热量转换器的控制,该热量转换器可将热能转换为机械能,当环境温度猛烈升高时,能量转换器就打开喷淋头。当火被控制后,环境温度下降,热能减少,则该能量转换器又可关闭水喷淋头。装置中最引人注目的部分是一个突出的柱状 Water sprinklers are effective devices for controlling initial fires in buildings. Recently, the United States “Central Sprinkler Company ” developed a new type of automatic opening and closing type water sprinkler, automatically shut down after the fire is controlled, thus reducing the water loss of common water sprinkler head loss, and Reduce water consumption. This self-closing water sprinkler can also be retrofitted with existing equipment. Automatic opening and closing type water sprinkler works on the principle that the sprinkler is controlled by a heat converter that converts heat energy into mechanical energy and when the ambient temperature rises violently, the energy converter opens the sprinkler . When the fire is controlled, the ambient temperature drops, the thermal energy decreases, then the energy converter can turn off the water sprinkler. The most noticeable part of the device is a prominent columnar shape