Causes of water hammer
Causes of water hammer
1. The phenomenon of water hammer is caused by the violent impact of condensed water on elbows, valves or equipment. If the valve opens and closes quickly, it will cause water hammer.
The steam will produce condensed water during the conveying process, and the condensed water will flow with the steam at a high speed.
Water hammer occurs when condensate hits an elbow or a closed valve at high velocity.
2. The steam condenses rapidly and collides with each other. Water hammer caused by steam backflow caused by pipeline arrangement.
When the condensate level is high enough, the steam passes through the condensate and causes the condensate to generate waves, forming discontinuous steam blocks locally.
Because when steam condenses into condensed water, the volume will be about 1000 times smaller than that of steam.
Therefore, when the steam block contacts the low-temperature condensed water and condenses, the volume will decrease rapidly and a partial vacuum will be formed.
At this time, the condensed water in the pipeline will be sucked into the vacuum space and impact the pipeline, thereby forming a water hammer.
