摘要
针对管道输水系统中的水锤现象,建立空气罐防水锤的数学模型,对有无空气罐两种情况,结合实例进行数值模拟计算,分析了空气罐初始体积,空气罐中气体状态变化指数等参数对管道瞬态压力变化的影响。结果表明,合理地使用空气罐可以有效地减轻水锤的破坏。
In this paper, the mathematical model of water-hammer protection by air vessel is established. The pipeline transient pressure under two kinds of conditions that installing and not installing air vessel are calculated, the paper analyzed the affect of varying vessel capacity and state of air compression in air vessel on the pressure surge recorded at the vessel-pipeline protect the pipeline avoiding damage caused by water junction. It points out that an air vessel can efficiently hammer.
出处
《排灌机械》
2005年第6期16-18,共3页
Drainage and Irrigation Machinery
关键词
输水管道
空气罐
水锤
特征线法
防护
pipelines
air vessel
water hammer
methods of characteristics
protection
