Requalification of Pressure Equipment

Transcription

1 Page 1 Requalification of Pressure Equipment Using the AFIAP Acoustic Emission Group Guidelines By M. Cherfaoui, M. Mediouni, JN. Simier, JL. Baoudour Contact : mohammed.cherfaoui@cetim.fr

2 A change introduced in the European PE rules Page 2 PED 97/23/CE SPECIFIC METHODES - initial qualification - requalification (recertification) HARMONIZATION USE OF NEW APPROACH PRACTICES - construction - testing - certification

3 EUROPEAN Requirements for initial qualification FRENCH Page 3 Appendix E Appendixes IA9 & IA10

4 Requirements for In-service inspection Page 4 French enforcement order of March 2000 periodical inspections Requalification internal & external inspections before hydrotesting verification of security devices hydrotesting every 18 to 40 months every 10 years covered by the user s inspection program requires an approval from a third part inspection body

5 Proposed NDE alternative methods Page 5 Magnetic Flux Leakeage Visual camera MT guided waves Multielement ET Pulsed ET

6 Proposed NDE alternative methods Page 6 UT guided waves UT crawler Multielement UT Acoustic Emission TOFD

7 Limited recognition of AE until 2002 Page 7 DM-T/P du 20 juillet 1993, relative à l application de la réglementation des réservoirs sous talus destinés au stockage de gaz inflammables liquéfiés (Concerning the application of the regulations to mounded tanks intended for storage of liquefied flammable gases) DM-T/P du 30 mai 1997, relatives aux modalités de suivi en service des stockages aériens de gaz inflammables liquéfiés sous pression revêtus d une protection «Ignifuge» (concerning in-service monitoring of above ground tanks intended for the storage of liquefied flammable gases, provided with a «flame retardant» coating) DM-T/P du 26 septembre 2002, décision relative à certains équipements sous pression remplacement de l épreuve hydraulique de certains équipements sous pression par un essai sous pression avec contrôle par émission acoustique (award concerning some pressure equipment replacement of hydraulic proof test for some pressure equipment by a pressure test combined with AE testing)

8 New task for AFIAP Page 8 The French Association of Pressure Equipment Engineer founded in 1976 deals with the technical and regulatory aspects of PE 403 members composed of different work groups : EPERC committee, GEA (AEG),...

9 About AEG Page 9 A secretary ECW chairman

10 Good practice Guidelines Started in Page 10

11 Good practice Guidelines Page 11

12 3 category AE source classification mode Page 12 category 1 : non significant category 2 : investigations are recommended category 3 : critical - investigations are mandatory

13 experienced categories 1 & 2 Page 13 Piquage supérieur 6 mm Manque de fusion en bord de chanfrain côté piquage Micro-inclusions Fond supérieur 60 mm 20 mm Zone 2 : l = 5 mm Manque de fusion Zone 1 : l = 40 mm

14 Covered by an annex Type of equipment in process Page 14 spherical tanks Underground storage tanks Autoclaves columns HP Storage tanks Insulated Storage tanks Paper drums Storage cylinders great volume tanks Composite piping Reactors

15 Case covered Page 15 CONSTRUCTION PHASE Welding + NDE + wave guide installation & hydrotest with AE Insulation & commissioning

16 Case covered Page 16 IN-SERVICE INSPECTION Sensor mounting insulated section indirect access to the vessel Sensor mounting bottom section

17 To conclude Page 17 the AFIAP AE good practice guideline : has been recognized in France in order to replace hydrotesting by in-service AE testing (DM-T/P 32970) helps customer and authorities be confident about the way AE is conducted & how results are obtained needs to be completed new type of equipment needs continuous feed back from REX critics are very welcome

18 Page 18 Thank you for your kind attention!