DIN EN 12952-5-2012 Water-tube boilers and auxiliary installations - Part 5 Workmanship and construction of pressure parts of the boiler German version EN 12952-5 2011《水管锅炉及辅助设备 第5.pdf

1、January 2012 Translation by DIN-Sprachendienst.English price group 29No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC

2、S 27.040!$y+Z“1860855www.din.deDDIN EN 12952-5Water-tube boilers and auxiliary installations Part 5: Workmanship and construction of pressure parts of the boilerEnglish translation of DIN EN 12952-5:2012-01Wasserrohrkessel und Anlagenkomponenten Teil 5: Verarbeitung und Bauausfhrung fr drucktragende

3、 KesselteileEnglische bersetzung von DIN EN 12952-5:2012-01Chaudires tubes deau et installations auxiliaires Partie 5: Fabrication et construction des parties sous pression de la chaudireTraduction anglaise de DIN EN 12952-5:2012-01SupersedesDIN EN 12952-5:2002-05www.beuth.deIn case of doubt, the Ge

4、rman-language original shall be considered authoritative.Document comprises 90 pages01.12 DIN EN 12952-5:2012-01 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 269 “Shell and water-tube boilers” (Secretariat: DIN, Germany). Th

5、e responsible German body involved in its preparation was the Normenausschuss Rohrleitungen und Dampfkesselanlagen (Piping and Boiler Plant Standards Committee), Working Committee NA 082-00-18 AA Dampfkesselanlagen. For more detailed information about the Normenausschuss Rohrleitungen und Dampfkesse

6、lanlagen (NARD), please visit www.nard.din.de. Amendments This standard differs from DIN EN 12952-5:2002-05 as follows: a) normative references have been updated; b) the tables have been renumbered; c) steel types and groups have been updated; d) requirements in Subclause 8.1.7 “Minimum distances be

7、tween adjacent seams” have been revised; e) requirements in Subclause 8.8 “Welding subsequent to final post-weld heat treatment” have been revised; f) requirements in Subclause 8.11.4 “Proximity of butt welds in straight tubes” have been revised; g) Annex B (informative) “Welded pressure connections

8、 and non-pressure containing attachments” has been revised; h) Subclause C.4.2.4 “Site welding” has been revised; i) the title of Annex E (normative) has been changed to read “Special requirements for composite tubes”; j) the standard has been editorially revised. Previous editions DIN EN 12952-5: 2

9、002-05 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12952-5 November 2011 ICS 27.040 Supersedes EN 12952-5:2001English Version Water-tube boilers and auxiliary installations - Part 5: Workmanship and construction of pressure parts of the boiler Chaudires tubes deau et installations auxiliair

10、es - Partie 5: Fabrication et construction des parties sous pression de la chaudire Wasserrohrkessel und Anlagenkomponenten - Teil 5: Verarbeitung und Bauausfhrung fr drucktragende Kesselteile This European Standard was approved by CEN on 10 September 2011. CEN members are bound to comply with the C

11、EN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management C

12、entre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as

13、the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Roma

14、nia, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12952-5:2011: EEUROPEAN COMMITTEE FOR STANDARDIZATION

15、 COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG EN 12952-5:2011 (E) 2 Contents Page Foreword 41 Scope 62 Normative references 63 Terms and definitions .74 Symbols and abbreviations 85 General 86 Pressure part 86.1 Drums, headers and similar pressure parts .86.2 Material identification

16、 96.3 Material marking 96.4 Marking during manufacture 97 Cutting, forming and fabrication tolerances 107.1 Cutting material . 107.2 Forming of drums, headers and ends 117.3 Forming of tube bends . 117.4 Drum and header fabrication tolerances 198 Welding 218.1 Design and other requirements specific

17、to welding . 218.2 Welding consumables 248.3 Welding approvals 248.4 General production requirements for welding 258.5 Repairs to welds . 268.6 Pre-heating 278.7 Post-weld heat treatment . 278.8 Welding subsequent to final post-weld heat treatment 278.9 Welded joints, connections and production test

18、 plates . 288.10 Attachment of non-pressure parts to drums and headers by welding . 318.11 Welding of tubes . 328.12 Flash butt welding of tubes . 348.13 Welded tube water walls 348.14 Arc stud welding . 349 Mechanical connections 359.1 General . 359.2 Access openings 35DIN EN 12952-5:2012-01 EN 129

19、52-5:2011 (E) 3 9.3 Branches and nozzles mechanically connected to the main pressure parts . 369.4 Tube connections 3710 Thermal treatment . 3910.1 General . 3910.2 Heating cycles and heat treatment(s) associated with plate forming operations 3910.3 Pre-heating for welding and thermal cutting 4110.4

20、 Post weld heat treatment 4210.5 Heat treatment of production test plates 51Annex A (normative) Tube bending procedure tests 52Annex B (informative) Welded pressure connections and non-pressure containing attachments . 61Annex C (normative) Manufacture of welded tubewalls . 62Annex D (normative) Coi

21、led boilers and coiled superheaters . 69Annex E (normative) Special requirements for composite tubes 70Annex F (informative) Guidelines for the determination of the competency of boiler manufacturers 72Annex G (informative) Significant technical changes between this European Standard and the previou

22、s edition . 85Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC 87Bibliography 88DIN EN 12952-5:2012-01 EN 12952-5:2011 (E) 4 Foreword This document (EN 12952-5:2011) has been prepared by Technical Committee CEN/TC 269 “Shell a

23、nd water-tube boilers”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2012, and conflicting national standards shall be withdrawn at the latest by Ma

24、y 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12952-5:2001. This document has been prepared unde

25、r a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive 97/23/EC, see informative Annex ZA, which is an integral part of this document. Annex G provides details of signific

26、ant technical changes between this European Standard and the previous edition. The European Standard series EN 12952 concerning water-tube boilers and auxiliary installations consists of the following parts: Part 1: General; Part 2: Materials for pressure parts of boilers and accessories; Part 3: De

27、sign and calculation for pressure parts of the boiler; Part 4: In-service boiler life expectancy calculations; Part 5: Workmanship and construction of pressure parts of the boiler; Part 6: Inspection during construction; documentation and marking of pressure parts of the boiler; Part 7: Requirements

28、 for equipment for the boiler; Part 8: Requirements for firing systems for liquid and gaseous fuels for the boiler; Part 9: Requirements for firing systems for pulverized solid fuels for the boiler; Part 10: Requirements for safeguards against excessive pressure; Part 11: Requirements for limiting d

29、evices of the boiler and accessories; Part 12: Requirements for boiler feedwater and boiler water quality; Part 13: Requirements for flue gas cleaning systems; DIN EN 12952-5:2012-01 EN 12952-5:2011 (E) 5 Part 14: Requirements for flue gas DENOX-systems using liquefied pressurized ammonia and ammoni

30、a water solution; Part 15: Acceptance tests; Part 16: Requirements for grate and fluidized-bed firing systems for solid fuels for the boiler; CR 12952 Part 17: Guideline for the involvement of an inspection body independent of the manufacturer. NOTE 1 A Part 18 on operating instructions is currently

31、 in preparation. Although these parts may be obtained separately, it should be recognized that the parts are inter-dependent. As such, the design and manufacture of boilers requires the application of more than one part in order for the requirements of the European Standard to be satisfactorily fulf

32、illed. NOTE 2 Part 4 and Part 15 are not applicable during the design, construction and installation stages. NOTE 3 A “Boiler Helpdesk“ has been established in CEN/TC 269 which may be contacted for any questions regarding the application of European Standards series EN 12952 and EN 12953, see the fo

33、llowing website: http:/www.boiler-helpdesk.din.de. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland,

34、 France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 12952-5:2012-01 EN 12952-5:2011 (E) 6 1 Scope This European Standard specifi

35、es requirements for the workmanship and construction of water-tube boilers as defined in EN 12952-1:2001. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, th

36、e latest edition of the referenced document (including any amendments) applies. EN 287-1:2011, Qualification test of welders Fusion welding Part 1: Steels EN 473, Non-destructive testing Qualification and certification of NDT personnel General principles EN 571-1:1997, Non destructive testing Penetr

37、ant testing Part 1: General principles EN 1092-1:2007, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 1: Steel flanges EN 1418:1997, Welding personnel Approval testing of welding operators for fusion welding and resistance weld setters for f

38、ully mechanized and automatic welding of metallic materials EN 1759-1:2004, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, Class designated Part 1: Steel flanges, NPS 1/2 to 24 EN 10025-2, Hot rolled products of structural steels Part 2: Technical delivery con

39、ditions for non-alloy structural steels EN 10028-2, Flat products made of steels for pressure purposes Part 2: Non-alloy and alloy steels with specified elevated temperature properties EN 10204:2004, Metallic products Types of inspection documents EN 10216-2, Seamless steel tubes for pressure purpos

40、es Technical delivery conditions Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties EN 10253-2:2007, Butt-welding pipe fittings Part 2: Non alloy and ferritic alloy steels with specific inspection requirements EN 10253-4:2008, Butt-welding pipe fittings Part 4: Wr

41、ought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements EN 12952-1:2001, Water-tube boilers and auxiliary installations Part 1: General EN 12952-2:2011, Water-tube boilers and auxiliary installations Part 2: Materials for pressure parts of boilers and

42、 accessories EN 12952-3:2011, Water-tube boilers and auxiliary installations Part 3: Design and calculation for pressure parts EN 12952-6:2011, Water-tube boilers and auxiliary installations Part 6: Inspection during construction; documentation and marking of pressure parts of the boiler EN 12952-7:

43、2002, Water-tube boilers and auxiliary installations Part 7: Requirements for equipment for the boiler DIN EN 12952-5:2012-01 EN 12952-5:2011 (E) 7 EN ISO 148-1:2010, Metallic materials Charpy pendulum impact test Part 1: Test method (ISO 148-1:2009) EN ISO 4759-1:2000, Tolerances for fasteners Part

44、 1: Bolts, screws, studs and nuts Product grades A, B and C (ISO 4759-1:2000) EN ISO 5817, Welding Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) Quality levels for imperfections (ISO 5817:2003, corrected version:2005, including Technical Corrigendum 1:2006)

45、 EN ISO 6520-1, Welding and allied processes Classification of geometric imperfections in metallic materials Part 1: Fusion welding (ISO 6520-1:2007) EN ISO 6892-1:2009, Metallic materials Tensile testing Part 1: Method of test at room temperature (ISO 6892-1:2009) EN ISO 14555:2006, Welding Arc stu

46、d welding of metallic materials (ISO 14555:2006) EN ISO 15609 (all parts), Specification and qualification of welding procedures for metallic materials Welding procedure specification EN ISO 15613, Specification and qualification of welding procedure for metallic materials Qualification based on pre

47、-production welding test (ISO 15613:2004) EN ISO 15614-1:2004, Specification and qualification of welding procedures for metallic materials Welding procedure test Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO 15614-1:2004) EN ISO 17638:2009, Non-destructive testing of welds Magnetic particle testing (ISO 17638:2003) EN ISO 17663:2009, Welding Quality requirements for heat treatment in connection with welding and allied processes (ISO 17663:2009) EN ISO 23277:2009, Non-destructive testing of welds Penetr