Cylindrical counter-flow heat exchanger

Details Cylindrical counter-flow heat exchanger Cylindrical counter-flow heat exchanger

1987-01-20

1988-04-26

Capossela, Ronald C.

Refrigeration

Refrigeration producer

Evaporator, e.g., heat exchanger

165169, F25B 1900

Patent

active

047396342

ABSTRACT:
A compact and easy-to-construct cylindrical counter-flow heat exchanger is provided for cryogenic refrigeration systems. It has an annular body, a helical pipe wound around and in contact with the annular body, and a sleeve which envelopes the helical pipe. A helical flow passage is formed around the annular body in contact with the helical pipe. A high-pressure fluid is introduced into a helical pipe, while a low-pressure fluid flows through the helical flow passage. Heat is exchanged between the two fluids through the helical pipe wall which is made of high heat-conductivity material such as copper.

REFERENCES:
patent: 2940734 (1960-06-01), Harvey
patent: 3457730 (1969-07-01), Berry et al.
patent: 3557868 (1971-01-01), Burkell
patent: 3739842 (1973-06-01), Whalen
patent: 4484458 (1984-11-01), Longsworth
Cryogenic Engineering, Chapter 2, "Liquefaction of Gases", Scott, Jul. 1959, (FIGS. 2.23-2.24, pp. 45-48).
Development of the Laminated Metal Heat Exchanger, vol. 32, No. 95, Aug. 1984, Takahashi et al, pp. 92-95.

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