Heat exchange arrangement

Details Heat exchange arrangement Heat exchange arrangement

1975-12-22

1977-11-01

Lazarus, Ronald H.

Heat exchange

With coated, roughened or polished surface

165134, 204196, F28F 1902, C23F 1300

Patent

active

040561429

ABSTRACT:
A heat exchange arrangement for use with chemically aggressive fluids has a source of direct current. Walls are provided which define a flow path for a fluid which is to undergo a temperature change, and at least a part of the walls is composed of a metallic material and connected to one of the terminals of the current source. The walls also form a chamber constituting a part of the flow path and having an opening which is closed by a cover. The cover is constituted as an electrode which is arranged in the flow path and is not in direct contact with the metallic part of the wall. This electrode is connected to the other terminal of the current source. The construction is effective for forming a protective coating on at least the metallic part of the wall when the current source is activated and fluid flows in the flow path. This protective coating prevents chemical attack of the metal by the fluid.

REFERENCES:
patent: 1020480 (1912-03-01), Cumberland
patent: 3354061 (1967-11-01), Foroulis
patent: 3483101 (1969-12-01), Delahunt et al.
patent: 3560365 (1971-02-01), Mueller
patent: 3798142 (1974-03-01), Evans
patent: 3951207 (1976-04-01), Baumann et al.

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