Method for monitoring a pipeline and position regulator for...

Details Method for monitoring a pipeline and position regulator for... Method for monitoring a pipeline and position regulator for...

2008-07-22

2008-07-22

Rivell, John (Department: 3753)

Fluid handling

With indicator, register, recorder, alarm or inspection means

Position or extent of motion indicator

C137S001000, C137S487500, C251S129040, C073S168000

Reexamination Certificate

active

10538415

ABSTRACT:
The invention relates to a method for monitoring a pipeline in order to detect the slow reduction of the free inner cross-section by means of the position of a control valve in the pipeline. When the flow rate is essentially constant, a first position is determined and stored at a first moment. According to at least one second position of the control valve, determined at a second, subsequent moment, the point at which the position of the valve exceeds a pre-deterrninable threshold value for a valve opening is determined, and optionally a signal is emitted to indicate that the threshold value has been exceeded and/or the time at which it was exceeded. As a result, suitable maintenance measures can be introduced, before faults occur in the process system.

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