Fouling monitoring apparatus of heat exchanger and method thereof
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United States of America Patent
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Nov 30, 1999
Grant Date -
N/A
app pub date -
Aug 12, 1997
filing date -
Aug 13, 1996
priority date (Note) -
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Abstract
An apparatus for measuring a fouling resistance and a cleanliness factor of heat-transfer surface and which is capable of continuously and accurately monitoring a build-up degree of deposits on a heat-transfer surface of a heat exchanger includes a fouling sensor having a given length of metal wire wound inside the heat-transfer surface for measuring an average temperature of the heat-transfer surface, a direct current voltage supply member for supplying a voltage to a heating wire of the fouling sensor, an accurate resistance measuring member connected with a temperature measuring metal wire of the fouling sensor for measuring an electrical resistance of the metal wire, an inlet/outlet portion water temperature measuring member for measuring the temperatures of the inlet/outlet portions of the apparatus, a water flow rate measuring member, and a data calculation apparatus for computing a fouling resistance and a cleanliness factor of a heat-transfer surface.
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