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Fault monitoring and automatic early fault detection method for valves, especially for an oscillating displacement pump, whereby the pump noise level is monitored over time for any change in comparison with a reference signal
Fault monitoring and automatic early fault detection method for valves, especially for an oscillating displacement pump, whereby the pump noise level is monitored over time for any change in comparison with a reference signal
Monitoring method in which the increased operating noise caused by back flow of the transport fluid in a leaky valve in the closed state is taken as a measure for the size of the leak. The effective signal is monitored over time and compared with a reference signal for a pump with intact valves. When there is a predetermined noise level difference or change in difference due to increased operating noise, an early fault detection indicator is triggered. The invention also relates to a corresponding device for method implementation.
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