Systems for inspection and repair of WWER type steam generators. Adrian KOVALYK, Pavol JABLONICKY, Peter PILAT

Transcription

1 Systems for inspection and repair of WWER type steam generators Adrian KOVALYK, Pavol JABLONICKY, Peter PILAT 2011

2 What we do... Reconstruction & modernization Nuclear safety Diagnostics & In-service inspection Personnel training Information technologies Commissioning & operation of NPP Radwaste management Electric grid construction Radiation safety & environment protection 2

3 Where we are... Slovakia Area km 2 Population mil Capital - Bratislava 3

4 Our systems... ET inspection of heat exchanging tubes UT inspection of internal surface Plugging of heat exchanging tubes Inspection Systems for Steamgenerators Repair and Maintenance Systems for Steamgenerators ET inspection of flange threaded holes ET & UT inspection of studs 4

5 WWER Steamgenerator Steamgenerator Condenser Reactor WWER-1000 Heat exchanging tubes Operational pressure - 6,4 MPa Steam temperature Steam productivity tons/hour Circulation pump 5

6 Manipulator ZOK Control unit Driving unit Carriage for modules Manipulator Centering device Reactor hall Technological compartment Inspection systems Steamgenerator Technical data Length mm Weight kg Speed of carriage travel - 50 mm/s Rotation - 2 rev/min 6

7 Module ET Eddy current inspection of heat exchanging tubes Single pusher for Bobbin probe Application of Bobbin poly or pearl probes Inspection beyond U-bend Automatic calibration Regulation of pushing/pulling speed Surveillance of inspection via two TV cameras Quick replaceable probe drum system Compatible with MIZ and Teddy eddy current instrument Inspection systems Technical data Dimensions x570x200 mm Weight - 46 kg Pushing/pulling speed - 0 to 1200 mm/s Inspection efficiency - 80 tubes/hour 7

8 Module ET DOUBLE Eddy current inspection of heat exchanging tubes Double pusher for Bobbin probe Application of Bobbin poly or pearl probes Inspection beyond U-bend Automatic calibration Regulation of pushing/pulling speed Independent control of each probe Surveillance of inspection via two TV cameras Quick replaceable probe drum system Compatible with MIZ and Teddy eddy current instrument Inspection systems Technical data Dimensions x400x290 mm Weight - 76 kg Pushing/pulling speed - 0 to 1200 mm/s Inspection efficiency tubes/hour 8

9 Module ET ROT Eddy current inspection of tubesheets Application of high speed rotary probe Automatic calibration Regulation of pushing/pulling speed High durability of rotary probe Surveillance of inspection via two TV cameras Compatible with Teddy eddy current instrument Inspection systems Technical data Dimensions x580x165 mm Weight - 24 kg Pushing/pulling speed - 40 to 100 mm/s Probe revolutions - max rev/min Inspection efficiency tubes/hour 9

10 Module UT Ultrasonic inspection of internal surface 4 exchangeable heads with various probe configuration 4 UT probes on each head Operational frequency 2 MHz 2 convertors Angles 70, 45, 53 Longitudinal and transversal waves Automatic calibration Surveillance of inspection via five TV cameras Compatible with MicroPulse ultrasonic instrument Inspection systems Technical data Dimensions - 750x440x300 mm Weight - 26 kg Scanning speed - 0 to 50 mm/s (vertical) Inspection efficiency - 1 collector/20 hours 10

11 DIZAP Eddy current inspection of threaded holes Applicable on primary and secondary flange of SG Exchangeable ET probes Detection of transversal and longitudinal cracks in threaded part, smooth part and bottom part of the hole Regulation of inspection speed Remote controlled Surveillance of inspection via TV camera Compatible with MIZ or Teddy eddy current instrument Inspection systems Technical data Dimensions - 500x610x940 mm Weight - 53 kg Inspection efficiency - 20 threaded holes/hour 11

12 KOSUP Eddy current and Ultrasonic inspection of studs Applicable on studs of steamgenerator and condenser Universal for ET and UT probes ET inspection of threaded part of the stud UT inspection of shank of the stud Compatible with MIZ or TC eddy current instrument Compatible with MicroPulse ultrasonic instrument Inspection systems Technical data Dimensions x500x1300 mm Weight kg ET Inspection efficiency - 1 stud/ 10 min UT Inspection efficiency - 1 stud/ 5 min 12

13 Plugging module Plugging of leaking heat exchanging tubes Plugging module compatible with all ZOK manipulators 4 exchangeable heads Remote controlled operation Semi automatic control of plugging procedure Fully automatic control of welding process Surveillance of plugging process via TV camera Optional application of collector drying system Technical data of plugging module Dimensions - 460x300x1010 mm Weight - 45 kg Drive - electric Plugging efficiency - 4 plugs/hour Repair and maintenance systems 13

14 Plugging procedure 1. Drilling of the opening for the plug 2. Inserting of the plug into the opening 3. Welding 4. Visual check of plugged tube Repair and maintenance systems 14

15 Conclusion... Studs Threaded holes Internal surfaces and welds Heatexchanging tubes Repair and maintenance systems Drying Plugging Tubesheets 15

16 We supply to... Russia Kola NPP Ukraine South-Ukrainian NPP Khmelnitsky NPP Rovno NPP Czech republic Temelin NPP Dukovany NPP Slovak republic Bohunice NPP Mochovce NPP 16

17 Thank you for attention... VUJE, a.s. Okružná Trnava Slovenská republika Telefón: Fax: Internet: vuje@vuje.sk