BS EN 13084-6-2015 Free-standing chimneys Steel liners Design and execution《独立式烟囱 钢内衬 设计和施工》.pdf

1、BSI Standards PublicationBS EN 13084-6:2015Free-standing chimneysPart 6: Steel liners Design and executionBS EN 13084-6:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 13084-6:2015.It supersedes BS EN 13084-6:2004 which is withdrawn.The UK participation in

2、its preparation was entrusted to TechnicalCommittee B/506/14, Structural Chimneys and Flues.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible f

3、or its correctapplication. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 89286 8ICS 91.060.40Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy a

4、nd Strategy Committee on 31 December 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 13084-6:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13084-6 November 2015 ICS 91.060.40 Supersedes EN 13084-6:2004English Version Free-standing chimneys - Part 6: St

5、eel liners - Design and execution Chemines autoportantes - Partie 6: Parois intrieures en acier - Conception et mise en uvre Freistehende Schornsteine - Teil 6: Innenrohre aus Stahl - Bemessung und Ausfhrung This European Standard was approved by CEN on 20 September 2015. CEN members are bound to co

6、mply with the CEN/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-CENEL

7、EC Management Centre 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

8、same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembou

9、rg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

10、2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13084-6:2015 EBS EN 13084-6:2015EN 13084-6:2015 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 5 4 Material . 6 4.1 Genera

11、l 6 4.2 Steels 6 5 General design requirements . 6 5.1 General 6 5.2 Liner . 6 5.3 Liner details 6 5.3.1 Supports and/or guides 6 5.3.2 Openings . 7 5.3.3 Drainage system 7 5.3.4 Seals, gaskets and jointing compounds . 7 5.3.5 Expansion joints 7 5.3.6 Chimney cap 7 5.3.7 Insulation . 7 5.3.8 Claddin

12、g 8 5.3.9 Internal protection . 8 5.3.10 Lightning protection 8 5.4 Gas tightness . 8 5.5 Temperature classes 9 6 Structural design . 9 6.1 Actions . 9 6.1.1 General 9 6.1.2 Permanent action 9 6.1.3 Wind actions 10 6.1.4 Thermal actions 10 6.1.5 Internal pressure at design conditions 11 6.2 Verifica

13、tion . 12 6.2.1 General . 12 6.2.2 Mechanical characteristics . 12 6.3 Openings in the liner . 12 7 Construction . 12 7.1 Tolerances 12 7.2 Surface protection against chemical attack 12 Annex A (informative) Calculation method for combined flue gases with different temperatures . 13 Bibliography . 1

14、6 BS EN 13084-6:2015EN 13084-6:2015 (E) 3 European foreword This document (EN 13084-6:2015) has been prepared by Technical Committee CEN/TC 297 “Free-standing industrial chimneys”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, eithe

15、r by publication of an identical text or by endorsement, at the latest by May 2016, and conflicting national standards shall be withdrawn at the latest by May 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELE

16、C shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 13084-6:2004. This European Standard is part one of the package of standards listed below: EN 13084-1, Free-standing industrial chimneys Part 1: General requirements. EN 13084-2, Free-standing

17、chimneys Part 2: Concrete chimneys. EN 13084-4, Free-standing chimneys Part 4: Brick liners Design and execution. EN 13084-5, Free-standing chimneys Part 5: Material for brick liners Product specifications EN 13084-6, Free-standing chimneys Part 6: Steel liners Design and execution EN 13084-7, Free-

18、standing chimneys Part 7: Product specifications of cylindrical steel fabrications for use in single wall steel chimneys and steel liners EN 13084-8, Free-standing chimneys Part 8: Design and execution of mast construction with satellite components EN 1993-3-2, Eurocode 3: Design of steel structures

19、 Part 3-2: Towers, masts and chimneys Chimneys. The main changes compared to the previous edition are: a) all normative references were updated; b) The reference in 6.1.3 was corrected to EN 1991-1-4:2005, 7.2.9. According to the CEN/CENELEC Internal Regulations, the national standards organizations

20、 of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, N

21、etherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 13084-6:2015EN 13084-6:2015 (E) 4 1 Scope This document deals with special requirements and performance criteria for the design of lining systems made of steel for free

22、 standing chimneys. It specifies the requirements for cylindrical steel liners as stated in EN 13084-1. This document covers the design of the following three basic types of liners located in a load bearing structure: a) base supported liner; b) sectional liner; c) top hung liner. Additionally this

23、document applies to single wall chimneys whose surface is in contact with flue gases. Liners built from prefabricated metal chimneys in accordance with EN 1856-1 and EN 1856-2 are installed as base supported liners with additional supports and guides as defined in this document. 2 Normative referenc

24、es The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1

25、443, Chimneys General requirements EN 1856-1, Chimneys Requirements for metal chimneys Part 1: System chimney products EN 1856-2, Chimneys Requirements for metal chimneys Part 2: Metal flue liners and connecting flue pipes EN 1859:2009+A1:2013, Chimneys Metal chimneys Test methods EN 1991-1-4:2005,

26、Eurocode 1: Actions on structures Part 1-4: General actions Wind actions EN 1993-1-6, Eurocode 3 Design of steel structures Part 1-6: Strength and Stability of Shell Structures EN 1993-3-2:2006, Eurocode 3 Design of steel structures Part 3-2: Towers, masts and chimneys Chimneys EN 10028 (all parts),

27、 Flat products made of steels for pressure purposes EN 10088 (all parts), Stainless steels EN 10095, Heat resisting steels and nickel alloys EN 13084-1:2007, Free-standing chimneys Part 1: General requirements EN 13084-7:2012, Free-standing chimneys Part 7: Product specifications of cylindrical stee

28、l fabrications for use in single wall steel chimneys and steel liners EN 62305-1, Protection against lightning Part 1: General principles (IEC 62305-1) BS EN 13084-6:2015EN 13084-6:2015 (E) 5 3 Terms and definitions For the purpose of this document, the terms and definitions given in EN 13084-1:2007

29、 and the following, apply. 3.1 base supported liner liner which is supported vertically only at the liner base 3.2 independent liner base supported liner which has no other horizontal support or restraint 3.3 guided liner liner which has horizontal supports and/or guides allowing free expansion 3.4

30、top hung liner liner which is supported vertically at or near the top 3.5 sectional steel liner liner with at least two independent vertically supported sections 3.6 liner support load bearing component which supports the liner 3.7 duct entry part of the liner which introduces the flue gases into th

31、e liner 3.8 gas flow mass or volume of gas through the liner per unit of time 3.9 single wall chimney liner which also is bearing wind or seismic actions 3.10 turning vanes plates to lead the flue gas in another direction 3.11 prefabricated metal chimneys prefabricated metal chimneys or liners in ac

32、cordance with EN 1856-1 and EN 1856-2 BS EN 13084-6:2015EN 13084-6:2015 (E) 6 4 Material 4.1 General Materials used, shall be based upon chemical, thermal and mechanical effects and shall fulfil the requirements of EN 13084-1 and EN 1993-3-2. Materials used shall not have a negative influence upon e

33、ach other. If prefabricated metal chimneys are used the additional requirements of this document shall be fulfilled. 4.2 Steels Steels commonly used are given in EN 13084-7. Other steels shall meet the requirements of EN 1993-3-2 and EN 13084-1. 5 General design requirements 5.1 General Gas flow cal

34、culations to determine the diameter of the liner are covered by EN 13084-1. Material expansion due to temperature shall be taken into account. For steel liners and prefabricated metal chimneys the class of chemical attack shall be in accordance with EN 13084-1. 5.2 Liner The liner shall be designed

35、in such a way that it is able to take the actions caused by: permanent action; pressure; temperature; the interaction with the supporting and guiding system; construction, transport and erection. The expansion shall be based upon the temperature, and length or diameter of the liner. For prefabricate

36、d metal chimneys the free movement of the liner shall be guaranteed. 5.3 Liner details 5.3.1 Supports and/or guides Supports and/or guides shall be designed in such a manner that they are able to take the actions caused by: the lining system; the load bearing system; thermal transfer; construction,

37、transport and erection. BS EN 13084-6:2015EN 13084-6:2015 (E) 7 For prefabricated metal chimneys the distance between horizontal supports shall not exceed 75 % of the manufacturers declared value as defined in EN 1856-1 and EN 1856-2 with a maximum of 3,0 m. Their free unsupported height above the l

38、ast support shall not exceed 66 % of the manufacturers declared value as defined in EN 1856-1 and EN 1856-2 with a maximum of 2,0 m. 5.3.2 Openings Where openings are cut into the liner, as for duct entries, instrumentation or inspection panels, the strength and the stability shall be verified inclu

39、ding any imposed loads. Openings in the liner shall have corners radiussed. See 6.3 for details. If prefabricated metal chimneys are not able to fulfil the given criteria in 6.3 a welded inlet construction can be used according to the requirements of this document and EN 13084-7. The connection betw

40、een the welded inlet construction and prefabricated metal chimney part shall be gas tight according to the class of the liner. The size of openings shall be dimensioned according to their use. Manholes shall have a minimum area of 0,28 m2and a minimum width of 0,45 m. Cleaning and inspection opening

41、s shall be provided so that the bottom of the liner may be inspected and cleaned when necessary. If openings are enclosed within the windshield they shall be to the same standard of gas tightness as the liner itself. If a ventilated space is provided there shall be adequate provision for the inspect

42、ion of this space. 5.3.3 Drainage system Adequate means shall be provided to drain condensate. The drainage system shall be dimensioned and fitted according to the operating conditions. This code does not cover the removal and disposal of condensate or waste products from the termination point of th

43、e drainage system fitted by the chimney manufacturer. It should be noted that the condensate and waste products should not be allowed to freeze, nor cold air bleed back into the liner. 5.3.4 Seals, gaskets and jointing compounds If seals, gaskets or jointing compounds are used their influence on the

44、 structure shall be considered. 5.3.5 Expansion joints Expansion joints shall be designed to withstand movements due to thermal expansion, chimney and foundation movement, design pressures and flue gas composition in appropriate combinations. Expansion joints shall be to the same standard of gas tig

45、htness as the liner itself. 5.3.6 Chimney cap The chimney cap protects the space between liner(s) and windshield against the ingress of weather and flue gas. Consideration shall also be given to the effects of chemical attack. 5.3.7 Insulation Deviating from EN 13084-1:2007, 4.3.2, the insulation an

46、d/or cladding shall be sufficient to ensure that under normal operating conditions the surface temperature, not including solar gain, does not exceed 50 C at an ambient temperature of 15 C where personnel protection is required. BS EN 13084-6:2015EN 13084-6:2015 (E) 8 Insulation shall be adequately

47、supported to stop it slipping and/or sagging. This can be achieved by pinning and/or banding. Where insulation is not covered by cladding, it shall be covered with wire mesh, or cloth, or aluminium, foil etc. Insulation shall be applied in such a manner as to minimise any gaps at the joints. The inf

48、luence of heat bridges on the liner system shall be taken into account. 5.3.8 Cladding External cladding shall be designed, manufactured and fitted to allow for differentials in thermal expansion and to prevent the ingress of weather. Cladding shall be adequately supported and fixed by riveting, scr

49、ewing or other adequate means. 5.3.9 Internal protection Internal protection, (such as refractory, insulation and cladding) may be required for one or more of the following reasons: a) protection against chemical attack; b) protection against high temperatures; c) protection against internal fire. Specialist advice should be sought when selecting and applying internal protection. 5.3.10 Lightning protection Lightning protection shall be in accordance with EN 13084-1 and EN 62305-1. 5