Sludge removing apparatus for a steam generator

Details Sludge removing apparatus for a steam generator Sludge removing apparatus for a steam generator

1983-07-13

1986-01-28

Yuen, Henry C.

Liquid heaters and vaporizers

Cleaning

Wash-out nozzle

122 32, 122383, 122390, 376310, F22B 3748

Patent

active

045664064

ABSTRACT:
A steam generator is provided which contains a manifold with a plurality of nozzles for breaking up and washing away sludge which has formed on the upper surface of its tube sheet. The manifold is rigidly attached to the upper surface of the tube sheet and remains in place during conventional operation of the steam generator. The portions of the present invention which are contained within the steam generator do not contain any moving parts and, thus, does not require human intervention in close proximity to components of the steam generator which may be possibly radioactive. High velocity streams of water are used to break up and remove sludge from the upper surface of the tube sheet and openings are provided through the wall of the steam generator for removal of the slurry in which the sludge is entrained.

REFERENCES:
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patent: 3916844 (1975-11-01), Cassell
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patent: 4273076 (1981-06-01), Lahoda et al.
patent: 4407236 (1983-10-01), Schukei et al.
patent: 4452183 (1984-06-01), Yazidjian

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