Heat exchange – Regenerator – Checker brick structure
Patent
1979-07-20
1981-03-17
Richter, Sheldon J.
Heat exchange
Regenerator
Checker brick structure
165146, 165154, F28D 710
Patent
active
042561701
ABSTRACT:
A liquid-to-liquid heat exchanger particularly adapted for exchanging heat from hot waste water to cold supply water. In preferred form, the heat exchanger is of the inner pipe and outer shell type in which the outer shell is sub-divided into a serpentine flow path for the cold water, and in which the inner pipe is sized so that flow of the hot water liquid therethrough normally does not fill the pipe when the pipe is horizontally disposed. The outer shell's serpentine path is comprised of a first passageway located entirely beneath the normal flow of the hot water through the pipe, and dual second passageways located on either side of and parallel to the first passageway. Flow of the cold water in the outer shell commences through the first passageway, then splits and reverses directions through the dual second passageways, thereby providing optimum heat transfer between the hot and cold water when the pipe is less than full of hot water.
REFERENCES:
patent: 1024436 (1912-04-01), Cartault
patent: 2397208 (1946-03-01), Saco et al.
patent: 2661934 (1953-12-01), Stutz
patent: 3453840 (1969-07-01), Nagakura et al.
patent: 3777502 (1973-12-01), Michie et al.
Focarino Margaret A.
Richter Sheldon J.
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