Method and means for inhibiting corrosion in a heat pipe

Details Method and means for inhibiting corrosion in a heat pipe Method and means for inhibiting corrosion in a heat pipe

1984-07-02

1985-10-22

Davis, Jr., Albert W.

Heat exchange

Regenerator

Checker brick structure

16510421, 165133, F28F 1902

Patent

active

045482586

ABSTRACT:
An improved corrosion-inhibiting system for use in heat pipes operating at relatively high temperatures, such as 300.degree. F. to 500.degree. F. In the illustrated embodiment, a corrosion inhibitor aqueous solution is provided having approximately 1% to 5% by weight sodium chromate. Glass which goes into solution into the sodium chromate at temperature of approximately 300.degree. F. and above is included in the system. The solution of the glass in the sodium chromate solution permits the glass to be carried to the condenser portion of the heat pipe in small solution droplets which are transported by the vaporized fluid so as to be adsorbed in the protective layer on the inner surface of the heat pipe tube. Glass dissolved in the boiling liquid solution is adsorbed on the wall surface in the evaporator portion of the heat pipe. Pyrex glass has been found to provide excellent results in the system.

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"The Heat Pipe", Scientific American, vol. 28, 1968, by G. Yale Eastman.

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