Water Hammer
Water Hammer
(OP)
We have a sludge piping system that vibrates and moves due to what appears to be water hammer (in this case sludge). As a structural engineer the first thing I can think of is to restrain the piping at all changes of direction.
1. Does any one see any problems with this approach?
2. Is there any literature available?
Thank you
1. Does any one see any problems with this approach?
2. Is there any literature available?
Thank you





RE: Water Hammer
Controlling hydraulic surges is best initially approached by slowing down the changes in velocity of the fluids within the pipe. Slow down either the maximum fluid velocity or at least try slowing down any valve opening and closing times.
A surge analysis can be done on your piping system to determine the optimum method to reduce surging if the above does not work. Surge tanks or some other relief type system might be in order, but that is still a bit premature to say. Try the above first.
BigInch
-born in the trenches.
http://virtualpipeline.spaces.msn.com
RE: Water Hammer
RE: Water Hammer
a) dampers, similar to those used in seismic restraint, allow thermal growth or differential settlement while restraining surges.
b)the pump rotor can be replaced with one that has more vanes - we this problem with a 3 vane rotor, and are now replacing it with a 5 vane rotor.
c) air or N2 filled bladder installed near the pump discharge in a tee fitting- dampens pressure surges, which may dampen slurry momentum surges.
RE: Water Hammer
RE: Water Hammer
RE: Water Hammer
RE: Water Hammer
BigInch
-born in the trenches.
http://virtualpipeline.spaces.msn.com
RE: Water Hammer
RE: Water Hammer
Types of valves, sizes, layout and flow conditions needed for further advice.