Freeze-thawing tank assembly

Details Freeze-thawing tank assembly Freeze-thawing tank assembly

1992-05-29

1996-06-11

Ford, John K.

Heat exchange

Structural installation

165 61, 165108, 165157, 422138, 62352, F25B 2900, C02F 122, C02F 1120

Patent

active

055247067

ABSTRACT:
A freeze-thawing tank assembly includes an upright vessel having a hollow defined therein for accommodating therein a quantity of fluid medium to be treated. The vessel is closed at an upper end by a lid and at a lower end by a normally closed discharge valve. A plurality of double-walled structures are accommodated within the hollow of the vessel in equally spaced and parallel relation with each other. Each of the double-walled structures has a fluid passage defined therein for the flow of a heat-exchanging fluid medium and also has a fluid inlet and outlet communicated with the fluid passage. The fluid medium to be treated may be alternately frozen and thawed by passing the heat-exchanging medium through the fluid passages in the double-walled structures.

REFERENCES:
patent: 1461364 (1923-07-01), Mabee et al.
patent: 2473641 (1949-06-01), Feldstein
patent: 2699322 (1955-01-01), Feldstein
patent: 2875027 (1959-02-01), Dye
patent: 3206287 (1965-09-01), Crawford
patent: 4105066 (1978-08-01), Buhler
patent: 4951738 (1990-08-01), Litzberg
"Sludge Treatment by Freeze Thawing", Kogyo Yosui (Industrial Water), pp. 23-28, Sep. 1975 (untranslated).

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