Film-type evaporator

Details Film-type evaporator Film-type evaporator

1992-02-28

1993-11-23

Manoharan, Virginia

Concentrating evaporators

Film type

Centrifugal

159 133, 159 42, 159 49, 165 88, 165115, 202236, 202238, 203 89, B01D 122

Patent

active

052640795

ABSTRACT:
A film-type evaporator has a vapor chamber, a rotor rotating therein, at least one evaporating surface extending outwards from the rotor axis and a heating chamber rotating therewith and sealed with respect to the vapor chamber. The starting product is fed onto the evaporating surface close to the rotor axis and spreads outwards in film-like manner due to the centrifugal force on the evaporating surface. A uniform film thickness is achieved in that the evaporating surface is a curved blade surface, which is formed by a generatrix substantially parallel to the rotor axis and whose axial extension is limited by upper and lower stop ledges, and that the concave side of the evaporating surface is directed in the circumferential direction of rotation of the rotor.

REFERENCES:
patent: 1936524 (1933-11-01), Placek
patent: 2169601 (1939-08-01), Cornelius et al.
patent: 2537833 (1951-01-01), Joos
patent: 3472304 (1969-10-01), Evkin
patent: 4065346 (1977-12-01), Evkin et al.
patent: 4199398 (1980-04-01), Evkin
patent: 4202846 (1980-05-01), Shafranousky et al.
patent: 4287019 (1981-09-01), Standiford

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