Immersion type heat exchanger

Details Immersion type heat exchanger Immersion type heat exchanger

1995-02-09

1996-10-08

Look, Edward K.

Heat exchange

With coated, roughened or polished surface

F28F 2102

Patent

active

055621562

ABSTRACT:
The present invention provides a heat exchanger having a coating with durability which causes neither adhesion of sludge nor separation of the coating within a short time. The surface of the heat exchanger is coated with a fluororesin having excellent chemical resistance and characteristics in that the hardness is R96 or more, the taper abrasion is less than 8.7 mg, the linear expansion coefficient is 7.5 to 8.0.times.10.sup.-5 /.degree.C., and the elongation is 223 to 280%. The fluororesin is preferably poly chloro tri fluoro ethylene with 1-2 weight percent cobalt.

REFERENCES:
patent: 2923640 (1960-02-01), Buckingham
patent: 3310102 (1967-03-01), Trombe
patent: 3424238 (1969-01-01), Leeds et al.
patent: 4125152 (1978-11-01), Kestner et al.
patent: 4296804 (1981-10-01), Press et al.
patent: 4461347 (1984-07-01), Layton et al.
patent: 4503907 (1985-03-01), Tanaka et al.
patent: 4515210 (1985-05-01), Smith et al.
patent: 4738307 (1988-04-01), Bentley
patent: 5199486 (1993-04-01), Balmer et al.
patent: 5211220 (1993-05-01), Swozil et al.

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