论文部分内容阅读
水流在水带中流动,由于水枪突然关闭等原因,使水流速度突然变化,而引起压力突然变化(升压和降压交替进行,直至完全衰减)称为水击。升压和降压交替进行时,对水带的作用如同锤击一样,因此也称水锤。由于水击作用,使水带内液体增大的压力可达正常压力的几倍至几十倍。大幅度的压力波动,具有很大的破坏性,往往造成水带接口脱落,甚至水带爆破,致使火场供水中断。因此,对水击的影响应引起足够的重视。
Water flow in the water with the sudden closure of the water gun and other reasons, so that sudden changes in water flow, causing sudden pressure changes (step-up and step-down alternately until completely decay) called the water hammer. When the step-up and step-down alternately, the role of water as the same as the hammer, it is also known as water hammer. As a result of water hammer, the water pressure within the water pressure up to several times normal pressure to several times. Drastic pressure fluctuations, with great destructive, often resulting in the interface with the water off, or even water burst, resulting in fire water supply interruption. Therefore, the impact of water hammer should be given sufficient attention.