Abstract
The vibrations of hydraulic pump and connected pipeline system are very problematic and often hardly soluble. The high pressure pulsations of hydraulic pump with the double suction inlet are investigated. For that reason the static pressure and accelerations are measured. The numerical simulations are carried out in order to correlate computed data with experimental ones and assess the main source of vibrations. Consequently the design optimization of the inner hydraulic part of pump is done for further experimental measurements with the variable pump discharge and speed. Several optimizations were considered – guide ribs in pump suction, an optimized diffuser and modified shaft bearings. The influence of optimized designs on the pump vibrations is discussed.
Highlights
The solution of vibrations generated in the pump and piping system connected to it is often an exacting problem
There was performed DFT, and effective velocity values were calculated from the amplitudes of velocity in selected frequency range
There were determined a rotation frequency, which was used to calculate the effective velocity of the synchronous frequency (Fig. 15) and the subsynchronous frequency (Fig. 17)
Summary
The solution of vibrations generated in the pump and piping system connected to it is often an exacting problem. To find a source of vibrations takes a lot of time and a lot of strength. There could be many theoretical sources of vibrations. The discussed pump should be put to the demanding tests. An example of a solution of excess vibrations may be the case of pumps in the pumping station of a contract owner. In the pumping station high-pressure pumps with double-side inlet were used. In order to design an appropriate adjustment of the pump, which would reduce the size of vibrations; it was necessary to determine the vibration source
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
