Multisectioned nozzle dam

Details Multisectioned nozzle dam Multisectioned nozzle dam

1986-04-21

1991-09-17

Recla, Henry J.

Pipes and tubular conduits

With closures and plugs

Inflatable

376204, F16L 5512

Patent

active

050485709

ABSTRACT:
A multisectioned nozzle dam (30) for use in a steam generator (24) with an integral bolt ring (32) has a body structure of general circular shape. Redundant seals including at least three separate inflatable peripheral seals (48, 50 and 52) with an alarm (A) for indicating a pressure increase between the second and third seals (50 and 52) is provided. Redundant supports including a plurality of independent bars (60, 62, 64 and 66) bolted to the integral bolt ring (36) secure the dam (30) within the nozzle (26) to the appropriate axial position.

REFERENCES:
patent: 759081 (1904-05-01), Delehanty
patent: 2921608 (1960-01-01), Crawford et al.
patent: 3844313 (1974-10-01), Arnold
patent: 3929253 (1975-12-01), Johnsson
patent: 4068852 (1978-01-01), Anglade
patent: 4470946 (1984-09-01), Vassalotti et al.
patent: 4624465 (1986-11-01), Rogemont

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