Flexible lance for steam generator secondary side sludge removab

Details Flexible lance for steam generator secondary side sludge removab Flexible lance for steam generator secondary side sludge removab

1987-03-18

1989-05-09

Jordan, Charles T.

Cleaning and liquid contact with solids

Apparatus

With movably or flexibly mounted spray or jet applying...

122392, 165 95, B08B 302, F22B 3752

Patent

active

048279536

ABSTRACT:
A system (10) for lancing sludge deposits (12) from within a bundle (14) of vertically extending steam generator tubes (16) of a PWR steam generator secondary side assembly (18) has a flexible lance (28) mounted in a lance guide/housing transporter (30). The transporter (30) is movable along blowdown (20) to position end (32) of the flexible lance opposite one of the inter-tube lanes (26) so that the flexible lance (28) may be inserted along the selected inter-tube lane (26). A rigid lance guide (34) on the transporter (30) has a curved end (36) configured to turn the flexible lance (28) at a chosen angle, such as 90.degree., so that the flexible lance (28) will be fed into the selected inter-tube lane (26). The transporter has a drive (37) for advancing the flexible lance (28) through end (36) of the lance guide (34) and into the inter-tube lane (26). The flexible lance (28) includes a flexible plastic extrusion (38) with a plurality of hollow, flexible metal conduits (40) within the plastic extrusion (38) to extend lengthwise along the lance (28). The nozzle block (44) has nozzles b 48, 50 and 52 so that all portions of the sludge deposits (12) adjacent to the selected inter-tube lane (26) can be reached by the flexible lance (28).

REFERENCES:
patent: 2949282 (1960-08-01), Kirkby
patent: 4112535 (1978-09-01), Wild et al.
patent: 4407236 (1983-10-01), Schukei et al.
patent: 4424769 (1984-01-01), Charamathieu et al.
patent: 4445465 (1984-05-01), Byrd et al.
patent: 4515747 (1985-05-01), Creek et al.
patent: 4572284 (1986-02-01), Katsches et al.
patent: 4638667 (1987-01-01), Zimmer et al.
patent: 4661309 (1987-04-01), Hayes
patent: 4702878 (1987-10-01), Klug et al.

Affiliated with

Also associated with

Rating

Flexible lance for steam generator secondary side sludge removab does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flexible lance for steam generator secondary side sludge removab, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible lance for steam generator secondary side sludge removab will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-82400