Invenstone Patent, LLC
Steam turbine seal packing performance monitoring system using magnetic field communication
In a steam turbine seal packing performance monitoring system, steam pressure is measured by installing a pressure sensor inside a seal packing for preventing steam from leaking, so that pressure information can be transmitted using magnetic field communication in order to externally monitor seal packing performance. The system includes a seal packing unit that is installed on a rotor shaft and has a plurality of seal packs disposed along an axial direction of the rotor shaft; a pressure sensor installed inside the seal packing unit to detect a pressure of steam leaked from inside the seal packing unit and to transmit a magnetic field signal by converting a detection signal indicative of the detected pressure into the magnetic field signal; and an adapter for receiving the magnetic field signal, converting the received magnetic field signal into pressure data, and calculating a leakage amount of steam based on the pressure data.
DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.
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Hyun Woo Seung Chul Jong Min
Son Lee Choi