Refrigeration – Processes – Circulating external gas
Patent
1992-07-02
1993-08-10
Ford, John K.
Refrigeration
Processes
Circulating external gas
62 40, 165166, F25J 300
Patent
active
052338398
ABSTRACT:
The invention aims at preventing the risks of deformation and breaking down of the heat exchanger which is part of a plant for the batch treatment of fluids, of the type in which, during active periods which are separated from one another by rest periods, at least one refrigerating fluid is allowed to circulate in first ducts of the exchanger, from the cold end to the hot end of the latter, and at least one calorigenic fluid is circulated in second ducts of the exchanger, from the hot end to the cold end of the latter, characterized in that, during rest periods, heat is introduced at the hot end and cold is introduced at the cold end of the exchanger so as to maintain these two ends at temperatures which are relatively close to those corresponding to the active periods, at least one of these two inputs being supplied by means of a reserve fluid of the plant.
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P. Wicker, Natural Gas Reliquefaction Plant Sulzer Tedi. Rev. (Switzerland) vol. 53, No. 1 (1971).
Chemical Abstracts, vol. 95, No. 9, Nov. 1981, Abstract No. 152976X, K. Sanso, "Temporary Shut Down of Air Liquefaction Apparatus," p. 132.
Greter Lucien
Venet Francois
Ford John K.
L'Air Liquide Societe Anonyme pour l'Etude et, l'Exploitation de
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