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Title: Nuclear steam generator sludge lance method and apparatus

Abstract

This paper describes a sludge lancing system for removing sludge deposits from an interior region of a steam generator. It comprises: a peripheral fluid injection means for injecting a fluid at a high pressure about a periphery of the steam generator, the peripheral fluid injection means comprising at least one elongated fluid conduit, at least one injection nozzle and a joint positioned at a predetermined point along the elongated fluid conduit for permitting the peripheral fluid injection means to bend to a predetermined angle at the joint within the steam generator; a reciprocable fluid injection means for injecting a fluid at a high pressure toward the sludge deposits and dislodging the sludge deposits; and a supporting means positioned within the interior of the steam generator for supporting the reciprocable fluid injection means throughout the reciprocation of the reciprocable fluid injection means.

Inventors:
;
Publication Date:
OSTI Identifier:
5661187
Patent Number(s):
US 5069172; A
Application Number:
PPN: US 7-590078
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (United States)
Resource Type:
Patent
Resource Relation:
Patent File Date: 26 Sep 1990
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; FLUIDS; HIGH PRESSURE; INJECTION; NUCLEAR POWER PLANTS; STEAM GENERATORS; CLEANING; MAINTENANCE; REACTOR COMPONENTS; SLUDGES; BOILERS; INTAKE; NUCLEAR FACILITIES; POWER PLANTS; THERMAL POWER PLANTS; VAPOR GENERATORS; 220200* - Nuclear Reactor Technology- Components & Accessories; 220400 - Nuclear Reactor Technology- Control Systems

Citation Formats

Shirey, R A, and Murray, D E. Nuclear steam generator sludge lance method and apparatus. United States: N. p., 1991. Web.
Shirey, R A, & Murray, D E. Nuclear steam generator sludge lance method and apparatus. United States.
Shirey, R A, and Murray, D E. Tue . "Nuclear steam generator sludge lance method and apparatus". United States.
@article{osti_5661187,
title = {Nuclear steam generator sludge lance method and apparatus},
author = {Shirey, R A and Murray, D E},
abstractNote = {This paper describes a sludge lancing system for removing sludge deposits from an interior region of a steam generator. It comprises: a peripheral fluid injection means for injecting a fluid at a high pressure about a periphery of the steam generator, the peripheral fluid injection means comprising at least one elongated fluid conduit, at least one injection nozzle and a joint positioned at a predetermined point along the elongated fluid conduit for permitting the peripheral fluid injection means to bend to a predetermined angle at the joint within the steam generator; a reciprocable fluid injection means for injecting a fluid at a high pressure toward the sludge deposits and dislodging the sludge deposits; and a supporting means positioned within the interior of the steam generator for supporting the reciprocable fluid injection means throughout the reciprocation of the reciprocable fluid injection means.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {12}
}