Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Patent
1982-09-01
1984-02-07
Fisher, Richard V.
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
134 41, B08B 308, B08B 906
Patent
active
044301294
ABSTRACT:
For the chemical cleaning of cooled waveguides, in particular water-cooled waveguides of electric machines and apparatus, whose cooling cycle is maintained by a feed pump and comprises an ion exchanger in a closable bypass, alternately a complexing agent is added into the cooling cycle with the bypass closed and thereafter a purification of the cooling water via the ion exchanger is effected with the bypass open. The preferred complexing agent is a chelate former or one of the salts thereof. In addition to the complexing agent, an oxidant, in particular hydrogen peroxide or oxygen gas, may be added in at least one passage cycle.
REFERENCES:
patent: 3010853 (1961-11-01), Elliott
Loucks, Charles U., "Chemical Engineering", Deskbook Issue, Feb. 26, 1973, Boosting Capabilities with Chemicals, pp. 79-84.
Brown Boveri & Cie Aktiengesellschaft
Fisher Richard V.
Greenberg Laurence A.
Lerner Herbert L.
Woodard Joye
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