Apparatus and method of removing microfouling from the waterside of a heat exchanger
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United States of America Patent
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Sep 24, 1996
Grant Date -
N/A
app pub date -
Dec 19, 1994
filing date -
Dec 19, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved apparatus and method is provided for removing microfouling from the tube side of a shell-and-tube heat exchanger on a more effective and efficient basis. The tube side of the heat exchanger is isolated and drained completely of surface water while it is still on-line. A source of low relative humidity air which is dry is provided. The low relative humidity air is passed through the tube side of the heat exchanger while there is still a heat load on the shell side of the heat exchanger. The surface water is re-introduced to the heat exchanger after the tube side of the heat exchanger has been dried so as to wash away and remove the dried out microfouling from the tube side of the heat exchanger.
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