EP 0047047 B1 19840516 - APPARATUS FOR DECONTAMINATING NUCLEAR STEAM GENERATORS
Title (en)
APPARATUS FOR DECONTAMINATING NUCLEAR STEAM GENERATORS
Publication
Application
Priority
US 15470380 A 19800530
Abstract (en)
[origin: EP0047047A2] Manipulator apparatus for cleaning a nuclear steam by sweeping a spray nozzle (32) about a pivot mechanism (20, 22) inside a spherical plenum (10) of the steam generator. The nozzle directs a water-grit mixture toward the inside surface (12, 14, 16) of the plenum in order to abrasively remove contaminates from the inside surface. The apparatus uses microprocessors (147, 159) to compute appropriate control parameters in order to maintain constant tangential velocity of the nozzle in relation to the inside surface. The microprocessors also compute, in one of the three modes of operation, appropriate control parameters for maintaining a predetermined distance between the nozzle and the surface to be cleaned so as to provide adequate cleaning of the surface but no damage thereto.
IPC 1-7
IPC 8 full level
B08B 3/02 (2006.01); B24C 3/32 (2006.01); F22B 37/00 (2006.01); G21F 9/00 (2006.01); G21F 9/28 (2006.01)
CPC (source: EP KR)
B24C 3/325 (2013.01 - EP); F22B 37/003 (2013.01 - EP); G21F 9/00 (2013.01 - KR); G21F 9/005 (2013.01 - EP)
Designated contracting state (EPC)
BE DE FR GB IT SE
DOCDB simple family (publication)
EP 0047047 A2 19820310; EP 0047047 A3 19820317; EP 0047047 B1 19840516; DE 3163597 D1 19840620; ES 502512 A0 19840401; ES 8404101 A1 19840401; JP S5720700 A 19820203; JP S6112560 B2 19860409; KR 830006773 A 19831006; KR 840002298 B1 19841215
DOCDB simple family (application)
EP 81302377 A 19810529; DE 3163597 T 19810529; ES 502512 A 19810526; JP 8126081 A 19810529; KR 810001786 A 19810522