Method for acoustic leak detection in a district heat conduction network
AssigneeKamstrup A/S
InventorsSune Hoveroust Dupont, Morten Karstoft Rasmussen
Life of this patent
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Abstract
The method serves the purpose of the acoustic leak detection in a district heating supply network (3), in which a heat transfer medium is circulated between a combined heat and power plant (1) and points of use (5). The points of use (5) have heat meters (10), which operate with ultrasonic flow meters, which operate with ultrasonic flow meters, which can be operated in a leak detection mode for the acoustic leak detection, whereby the acoustic signals detected in the leak detection mode are filtered to eliminate extraneous noises, in particular pump noises.
Claims20
A method for the acoustic leak detection in a district heating supply network, the method comprising the steps of:
- circulating a heat transfer medium between a combined heat and power plant and points of use;
- providing the points of use with heat meters, which operate with ultrasonic flow meters, which can be operated in a leak detection mode for acoustic leak detection;
- and
- filtering the acoustic signals detected in the leak detection mode to eliminate extraneous noises, wherein at least one pump for detecting the acoustic signals created during the operation thereof is controlled in the leak detection of the ultrasonic flow meter, whereby the signal detected on an ultrasonic flow meter side is used to filter out pump noise.
A method for the acoustic leak detection in a district heating supply network, the method comprising the steps of:
- circulating a heat transfer medium between a combined heat and power plant and points of use;
- providing the points of use with heat meters, which operate with ultrasonic flow meters, which can be operated in a leak detection mode for acoustic leak detection;
- providing at least one pump;
- controlling the at least one pump to detect acoustic signals created during a pump operation of the at least one pump in the leak detection mode, filtering out pump noise in the leak detection mode using a signal detected on an ultrasonic flow meter side.
Dependencies are inferred from the claim text.