Apparatus and method of removing microfouling from the waterside

Details Apparatus and method of removing microfouling from the waterside Apparatus and method of removing microfouling from the waterside

1994-12-19

1996-09-24

Rivell, John

Heat exchange

With cleaning means for heat exchanger

15301, 34511, 34475, 122379, F28G 1300

Patent

active

055581579

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.

REFERENCES:
patent: 908565 (1909-01-01), Hamann
patent: 1579262 (1926-04-01), Vickery et al.
patent: 3673632 (1972-07-01), Egnaczak
patent: 4633593 (1987-01-01), Wallis
patent: 4860821 (1989-08-01), Hagewood
patent: 5060600 (1991-10-01), Brown et al.
patent: 5105558 (1992-04-01), Curry
patent: 5442921 (1995-08-01), Chow et al.

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