EP 2831418 B1 20201014 - SYSTEM AND METHOD FOR MONITORING AND CONTROL OF CAVITATION IN POSITIVE DISPLACEMENT PUMPS
Title (en)
SYSTEM AND METHOD FOR MONITORING AND CONTROL OF CAVITATION IN POSITIVE DISPLACEMENT PUMPS
Title (de)
SYSTEM UND VERFAHREN ZUR ÜBERWACHUNG UND STEUERUNG VON HOHLRAUMBILDUNGEN IN VERDRÄNGERPUMPEN
Title (fr)
SYSTÈME ET PROCÉDÉ POUR SURVEILLER ET COMMANDER LA CAVITATION DANS DES POMPES VOLUMÉTRIQUES
Publication
Application
Priority
US 2012030893 W 20120328
Abstract (en)
[origin: WO2013147761A2] A system and method are disclosed for monitoring and controlling a positive displacement pump using readings obtained from a plurality of pressure sensors. The pressure sensors may be mounted at the suction, discharge and interstage regions of the pump. Signals from the pressure sensors are compared to obtain a ratio that is used to predict whether a cavitation condition exists within the pump. The ratio can be compared to user provided limits to change an operating characteristic of the pump to reduce predicted cavitation. The pump may be stopped, or pump speed changed, when the ratio is less than a predetermined value. In some embodiments, historical information regarding the ratio may be used to obtain standard deviation information which may then be used to predict whether gas bubbles are passing through the pump. Other embodiments are described and claimed.
IPC 8 full level
F04B 9/06 (2006.01); F04C 2/12 (2006.01); F04C 2/16 (2006.01); F04C 14/08 (2006.01); F04C 14/28 (2006.01)
CPC (source: EP)
F04C 14/08 (2013.01); F04C 14/28 (2013.01); F04C 2/12 (2013.01); F04C 2/16 (2013.01); F04C 2270/80 (2013.01); F04C 2270/86 (2013.01); F04C 2270/90 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2013147761 A2 20131003; WO 2013147761 A3 20140501; CN 104321529 A 20150128; CN 104321529 B 20161207; EP 2831418 A2 20150204; EP 2831418 A4 20151230; EP 2831418 B1 20201014; ES 2827448 T3 20210521; JP 2015520819 A 20150723; JP 5999739 B2 20160928
DOCDB simple family (application)
US 2012030893 W 20120328; CN 201280073298 A 20120328; EP 12872798 A 20120328; ES 12872798 T 20120328; JP 2015503167 A 20120328