Yarn heating apparatus and process

Details Yarn heating apparatus and process Yarn heating apparatus and process

1978-01-09

1979-12-04

Davis, Jr., Albert W.

Heat exchange

Intermediate fluent heat exchange material receiving and...

Liquid fluent heat exchange material

57309, 165133, F28D 1500

Patent

active

041767128

ABSTRACT:
There is provided an improved heating apparatus of the multiple condensing-vapor substantially air-free type used for uniformly heating moving threadlines of yarn up to 350.degree. C. and which includes a pressurized boiler containing a vaporizable liquid, means for heating the liquid in the boiler to generate hot vapor, means for distributing the hot vapor to the inside of multiple plates where the vapor condenses and thereby heats threadlines of yarn separately moved in frictional contact witn an outer yarn-contacting surface of each hot plate, and possibly means for returning the condensate to the boiler, wherein the improvement comprises having a coating on the inside surface of each said hot plate, said coating having a contact angle with said vaporizable liquid of at least 90.degree..

REFERENCES:
patent: 2923640 (1960-02-01), Buckingham
patent: 3071838 (1963-01-01), Scragg
patent: 3177931 (1965-04-01), Carruthers
patent: 3367006 (1968-02-01), Mattingly
patent: 3466189 (1969-09-01), Erb
patent: 3547185 (1970-12-01), Eissenberg
patent: 3682238 (1972-08-01), Ostertag et al.
First Int'l Symposium on Water Desalination, Erb and Thelen, Oct. 1965, p. 4.

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