Phase shift controller for a reciprocating pump system.

WIPO Patent Application WO/2011/126367

A3

The present invention discloses a pump system using multiple reciprocating positive displacement pumps which phase shift is controlled by a phase shift controller. The phase shift controller uses a virtual master pump inside the phase shift controller which is used as a phase reference against which the phase shifts of the individual pumps is calculated. The phase shift controller adjusts the speed reference set-point for the variable speed drives of the individual pumps such that a desired phase shift is obtained and maintained. The operation op multiple reciprocating pumps using phase shift control can significantly reduce the pressure pulsation levels in the pump system. The use of a virtual master pump eliminates master slave scheduling and increases system reliability and availability as is the operating of the phase control is not depending on the reliability of a real master pump as is the case in prior art phase shift controllers.

VAN RIJSWICK RUDOLFUS JOHANNES ADELEIDA (NL)
VAN OSCH FELIX JOHANNES JACOBUS (NL)

PCT/NL2011/050230

July 02, 2015

April 05, 2011

Click for automatic bibliography generation  

WEIR MINERALS NETHERLANDS BV (NL)
VAN RIJSWICK RUDOLFUS JOHANNES ADELEIDA (NL)
VAN OSCH FELIX JOHANNES JACOBUS (NL)

F04B11/00; F04B15/02; F04B49/00; F04B49/20

WO2009079447A1

2009-06-25

US2791179A	1957-05-07
JPS63302199A	1988-12-09
JP2009047125A	2009-03-05
US20030094199A1	2003-05-22
US5795060A	1998-08-18

Algemeen Octrooi- en Merkenbureau B.V. (AP Eindhoven, NL)

View/Download PDF      PDF Help

Previous Patent: SLAUGHTERING INSTALLATION AND METHOD

Next Patent: PARTICLE PREPARATION BY CENTRIFUGAL DISPERSING