vibrating line - cause ?
vibrating line - cause ?
(OP)
Like to know how to differenciate between vibrating line due to hammering and cavitation. Line is for transporting water at about 110 C through a control valve.
I thought for hammering, one needs a change in the flow, e.g. closing a valve. The vibration is continuous and not intermittent. Think it is due to cavitation than hammering. Your thought ?
I thought for hammering, one needs a change in the flow, e.g. closing a valve. The vibration is continuous and not intermittent. Think it is due to cavitation than hammering. Your thought ?





RE: vibrating line - cause ?
Would appear that you have steam bubbles traveling along your pipe,which are compressing and expanding intermittently.
You could fit a high point vent and /or a pressure damper vessel to reduce the vibration.
Offshore Engineering&Design
RE: vibrating line - cause ?
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RE: vibrating line - cause ?
Besides the info already supplied, it could be vane pass frequency, out of balance impeller, mis-alignment of pump / motor, pump or motor loose on it's baseplate, cavitation at the impeller inlet.
RE: vibrating line - cause ?
From the questions and comments to date there is insufficient information in the OP. Can youn provide more information. Where is the hot water comming from, what is the line pressure up/down from the valve, what is the system the hot water is in? If you want quality answers we need all the information.
Mark Hutton
RE: vibrating line - cause ?
RE: vibrating line - cause ?
RE: vibrating line - cause ?
Water is from a scrubbing unit and pressure at about 15 barg. About 10 barg after the control valve. Temp at about 110 C. Pump is upstream of the scrubbing unit. Vibrating line is after the scrubbing unit.
RE: vibrating line - cause ?
Back to Artisi's question is it a new or old problem, has something changes to create the problem?
Mark Hutton