sumergence allowance with vortex breaker
sumergence allowance with vortex breaker
(OP)
hi
what is the guidance on the submergence to be allowed when you are using a vortex breaker on your suction pipe?
you can reduce the submergence when a vortex breaker is installed, am I correct?
what is the guidance on the submergence to be allowed when you are using a vortex breaker on your suction pipe?
you can reduce the submergence when a vortex breaker is installed, am I correct?





RE: sumergence allowance with vortex breaker
RE: sumergence allowance with vortex breaker
RE: sumergence allowance with vortex breaker
another question
what the guidelines on submersible pumps regarding submergence?
RE: sumergence allowance with vortex breaker
It is most important to provide the most gentle possible introduction of the flow to the pump suction bell with the least practical rates of acceleration of the flow. Every reasonable effort must be made to avoid the introduction of turbulence and to avoid rapid fluctuation of the flow rate through the pump. Once formed, a vortex can persist for a very long time (hours), and a vortex created well upstream of the the pump suction can augment any vortex creation problem in the vicinity of the pump.
Codes and standards are very helpful and should always be respected, but it is almost always unwise to apply them as a simple form of "cookbook recipe." Look to these for the valuable guidance that they can and do provide, but pay more attention to all of the characteristics of the specific situation to optimize the result of your work.
I've experienced a number of pump suction situations where just clearing out needless flow obstructions and cleaning up a troublesome flow situation well upstream of the pump greatly reduced the perceived problem at much less cost than had been anticipated. Pumps are always an integral part of a much greater system, and solutions to problems almost always involve careful study of the entire system.
Valuable advice from a professor many years ago: First, design for graceful failure. Everything we build will eventually fail, so we must strive to avoid injuries or secondary damage when that failure occurs. Only then can practicality and economics be properly considered.
RE: sumergence allowance with vortex breaker
Some of the best practical advice I've seen for quite a while - especially the last paragrah, deserves a star.