Boiler with deformable wall for removing scale

Details Boiler with deformable wall for removing scale Boiler with deformable wall for removing scale

1992-06-08

1994-11-22

Bartis, Anthony

Electric resistance heating devices

Heating devices

Vaporizer

122379, 122494, 126361, 165 84, 392443, 392451, 392458, F24H 120, F28G 500, F22B 128

Patent

active

053676050

ABSTRACT:
A boiler for the production of steam and/or hot water has a principal enclosure limited by a watertight wall for containing water, a bottom water extraction outlet,a water supply inlet, an upper steam outlet and a level detector controlling the water level in the enclosure. Electric immersion heating elements are provided in the enclosure for heating the water to generate steam. At least one section of the enclosure wall adjacent the water level on which scale deposits are likely to form is deformable by flexion and is stressed by time-varying deformations of the wall produced by variations of water and/or steam pressure in the enclosure which causes the film of scale deposited on the inner surface of the at least one deformable section to break up and become detached so that they fall to the bottom of the enclosure for easy elimination by drainage of the water from the enclosure through the bottom water extraction outlet.

REFERENCES:
patent: 1143291 (1915-06-01), Lovekin
patent: 1840834 (1932-01-01), Davis
patent: 1984791 (1934-12-01), Finken
patent: 2360590 (1944-10-01), Schweller
patent: 2582250 (1952-01-01), Herschberg
patent: 2602644 (1952-07-01), Sandstrom
patent: 2655803 (1953-10-01), Richardson
patent: 2793988 (1957-05-01), Latham et al.
patent: 3178913 (1965-04-01), Olson
patent: 4032748 (1977-06-01), Vischer et al.
patent: 4256576 (1981-03-01), Blickle et al.

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