Liquid heaters and vaporizers – Indirectly heated – Separate fluid
Patent
1977-01-24
1978-09-26
Sprague, Kenneth W.
Liquid heaters and vaporizers
Indirectly heated
Separate fluid
122408GT, 237 60, F22B 102, F22D 700
Patent
active
041161670
ABSTRACT:
Methods and apparatus for heating and storing a fluid contain the fluid in a heat insulated space and prepare by heating of a heat transfer medium in a first region located at a distance from that space a vapor having a certain pressure and being condensable through transfer of heat to the contained fluid. A second region of a pressure lower than the mentioned vapor pressure is provided by heat transfer to the contained fluid in the mentioned space. The vapor is passed to the lower pressure second region into heat transfer relationship with, but physically separate from, the mentioned fluid and is converted by heat transfer to said fluid to a condensate in that lower pressure second region whereby the fluid is heated. The condensate is maintained physically separate from the fluid and is recycled from the second region to the first region. The recycled condensate is converted to vapor by reheating in the first region and the above mentioned cycle is continued until the fluid has been heated to a desired temperature.
REFERENCES:
patent: 823488 (1906-06-01), Barnstead
patent: 1240804 (1917-09-01), Alexander et al.
patent: 1987182 (1935-01-01), Dalen et al.
patent: 2686863 (1954-08-01), Chandler
patent: 3717748 (1973-02-01), Imler
patent: 3759230 (1973-09-01), Cooksley
patent: 3854454 (1974-12-01), Lazaridis
Flygare Ralph M.
Sprague Kenneth W.
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