EP 2100005 A1 20090916 - METHOD FOR IDENTIFYING BLOCKAGES IN SPRINKLER DEVICES AND APPARATUS FOR CARRYING OUT THIS METHOD
Title (en)
METHOD FOR IDENTIFYING BLOCKAGES IN SPRINKLER DEVICES AND APPARATUS FOR CARRYING OUT THIS METHOD
Title (de)
VERFAHREN ZUM ERKENNEN VON VERSTOPFUNGEN VON BEDÜSUNGSEINRICHTUNGEN SOWIE VORRICHTUNG ZUR DURCHFÜHRUNG DIESES VERFAHRENS
Title (fr)
PROCÉDÉ DE DÉTECTION DE COLMATAGES DANS DES DISPOSITIFS À TUYÈRES ET DISPOSITIF POUR EXÉCUTER CE PROCÉDÉ
Publication
Application
Priority
- AT 2007000541 W 20071130
- AT 20582006 A 20061213
Abstract (en)
[origin: WO2008070884A1] In a method for identifying blockages in sprinkler devices (2) on heading and mining machines, the pressure and the flow rate of the medium to be fed to the sprinkler device are measured, the measured values are fed to an evaluation circuit and compared with the desired characteristic curve (12), which is measured for the sprinkler device, for the dependence of its flow rates on the operating pressure of a fault-free sprinkler device. Deviations from the desired characteristic curve of a fault-free sprinkler device are displayed and/or used as control signals for driving the heading and/or mining machine. The apparatus for carrying out the method is characterized in that a pressure sensor (4) and a flow rate sensor (7) for the medium which is to be fed to the sprinkler device are provided, the measured values from these sensors being passed to an evaluation circuit via signal lines; in that the evaluation circuit contains a memory for desired characteristic curves (12, 18) of the pressure-dependent profile of the flow rates of a fault-free sprinkler device and provides characteristic maps for the permissible deviation from the desired characteristic curve, and in that the evaluation circuit is connected to a display apparatus and/or a control element of the drive of the heading and mining machine.
IPC 8 full level
E21C 35/22 (2006.01)
CPC (source: EP)
E21C 35/22 (2013.01)
Citation (search report)
See references of WO 2008070884A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008070884 A1 20080619; AT 505031 A4 20081015; AT 505031 B1 20081015; AU 2007332121 A1 20080619; AU 2007332121 B2 20140123; CN 101573508 A 20091104; CN 101573508 B 20120808; EP 2100005 A1 20090916; ZA 200903995 B 20100526
DOCDB simple family (application)
AT 2007000541 W 20071130; AT 20582006 A 20061213; AU 2007332121 A 20071130; CN 200780046239 A 20071130; EP 07845272 A 20071130; ZA 200903995 A 20090608