Development of Inbuilt Self-Priming System for Vertical Inline Centrifugal Pump

Abstract

The main agenda of the present work is to
develop the inbuilt priming system for
centrifugal inline pump which will be part of the
centrifugal pump and could perform the priming
function automatically without any external
resource or additional machine. To develop this
system, it is used the principle of vacuum pump
which operates on the liquid ring vacuum
principle. The main working fluid required for
this priming pump is mixture of air and water. In
this development work, it is designed the Casing
chamber and impeller of vacuum pump
arrangement on the same shaft of main
centrifugal pump and will operate along with
main pump. Water required for the priming unit
is provided through external tank in priming
chamber and air from the main pump and its
piping will be made available for priming pump.
Arrangement for service liquid and its piping in
connection with vacuum pump is designed to
perform the priming function automatically.