Method and device for cleaning a tube plate of a heat exchanger

Details Method and device for cleaning a tube plate of a heat exchanger Method and device for cleaning a tube plate of a heat exchanger

1996-12-19

1998-07-21

Stinson, Frankie L.

Cleaning and liquid contact with solids

Apparatus

For work having hollows or passages

134181, 122392, 239240, 2392633, B08B 908

Patent

active

057822557

ABSTRACT:
At least two pivoting jets (55a, 55b, 55c) of cleaning liquid, each directed between two successive lines of tubes substantially perpendicular to the rows of tubes, are sent, in succession, from locations situated inside the bundle of the steam generator, into a space between two successive rows of tubes so as to sweep the tube plate between a central part vertically in line with the space between the two rows of tubes and two outer parts situated at the periphery of the bundle and along the length of the space between the rows of tubes. The flow rate of cleaning liquid is at least equal to 20 l/min, per jet. The invention applies in particular to the cleaning of the tube plate of a steam generator of a pressurized-water nuclear reactor.

REFERENCES:
patent: 2355571 (1944-08-01), Spears
patent: 2725064 (1955-11-01), Tamminga
patent: 4452183 (1984-06-01), Yazidjian
patent: 4638667 (1987-01-01), Zimmer et al.
patent: 4676201 (1987-06-01), Lahoda et al.
patent: 4887555 (1989-12-01), Smet
patent: 5036871 (1991-08-01), Rugieri et al.
patent: 5194217 (1993-03-01), St. Louis et al.
patent: 5320072 (1994-06-01), Theiss et al.
patent: 5411043 (1995-05-01), Lamler
patent: 5572957 (1996-11-01), Vandenberg
patent: 5667139 (1997-09-01), Dickie

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