Method for improved heat transfer

Details Method for improved heat transfer Method for improved heat transfer

1979-10-09

1982-09-14

Sever, Frank

Heat exchange

Regenerator

Checker brick structure

16510427, 165DIG5, 165DIG24, F28D 1300, F28D 1500

Patent

active

043490689

ABSTRACT:
A heat exchanger used in the multi-stage flash distillation process is provided at the cool end with a gas injection device that creates two-phase flow within the tube side of the heat exchanger. At the hot end, the two-phase flow is degasified and the gas recycled through the cool end. Alternatively, where multiple heat exchanger modules are used, the two-phase flow from each tube in the first exchanger is directly routed to a tube of the second exchanger, or the two-phase flow from the first exchanger is separated and the individual phases are recombined in the entrance of the second exchanger. A gas injection device is used for creation of the two-phase flow, and this employs a gas chamber with gas supply tubes running into the liquid inlet ends of the heat exchanger tubes to introduce the gas uniformly into each tube.

REFERENCES:
patent: 2797899 (1957-07-01), Funk et al.

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