Flexible lance and drive system

Details Flexible lance and drive system Flexible lance and drive system

1989-02-22

1991-08-06

Stinson, Frankie L.

Cleaning and liquid contact with solids

Apparatus

For work having hollows or passages

134177, 134200, 239753, B08B 302

Patent

active

050368710

ABSTRACT:
A flexible lance and drive system (10) extends through manhole (12) into blow down lane (14) of a pressurized water reactor (PWR) steam generator secondary side assembly (16). The system (10) includes a support rail (18) passing through the manhole (12) and along the blow down lane (14). A transporter (20) is suspended for locomotion along the support rail (18). A flexible lance (24) extends through the transporter (20) and can be driven by the transporter into tube bundle (26) to a greater or lesser extent as required to observe and/or clean sludge deposits (28) within the tube bundle (26). High pressure hoses (34), nitrogen purge line (36) and Fiber optics cable (32) is supported by a spacerless hosebar structure (38). The hosebar structure (38) is integrally formed from a flexible plastic material in a single piece.

REFERENCES:
patent: 2668978 (1954-02-01), DeMart
patent: 3620188 (1971-11-01), Schmitzer
patent: 4107001 (1978-08-01), Kinzler
patent: 4343211 (1982-08-01), Volle
patent: 4424769 (1984-01-01), Charamathieu et al.
patent: 4638667 (1987-01-01), Zimmer et al.
patent: 4646768 (1987-03-01), Tanaka et al.
patent: 4691723 (1987-09-01), Mierswa et al.
patent: 4715324 (1987-12-01), Muller et al.

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