BS EN 12952-13-2003 Water-tube boilers and auxiliary installations - Requirements for flue gas cleaning systems《水管锅炉和辅助设备 第13部分 废气清洁系统的要求》.pdf

1、BRITISH STANDARD BS EN 12952-13:2003 Incorporating Amendment No. 1 Water-tube boilers and auxiliary installations Part 13: Requirements for flue gas cleaning systems The European Standard EN 12952-13:2003, with the incorporation of amendment A1:2003, has the status of a British Standard ICS 27.040;

2、27.060.30 BS EN 12952-13:2003 This British Standard, was published under the authority of the Standards Policy and Strategy Committee on 23 June 2003 BSI 17 February 2004 ISBN 0 580 42133 3 National foreword This British Standard is the official English language version of EN 12952-13:2003, includin

3、g amendment A1:2003. The UK participation in its preparation was entrusted to Technical Committee PVE/2, Water-tube boilers, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards whic

4、h implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publicat

5、ion does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/

6、European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page

7、, pages 2 to 10, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments 14945 17 February 2004 Modification to EN foreword and deletion of Annex ZA EUROPEAN STA

8、NDARD NORME EUROPENNE EUROPISCHE NORM EN 12952-13 March 2003 + A1 December 2003 ICS 27.040; 27.060.30 English version Water-tube boilers and auxiliary installations - Part 13: Requirements for flue gas cleaning systems (includes amendment A1:2003) Chaudires tubes deau et installations auxiliaires -

9、Partie 13: Exigences pour les systmes de traitement des fumes (inclut lamendement A1:2003) Wasserrohrkessel und Anlagenkomponenten - Teil 13: Anforderungen an Rauchgasreinigungsanlagen (nthalt nderung A1:2003) This European Standard was approved by CEN on 27 December 2002. Amendment A1 was approved

10、by CEN on 20 November 2003. CEN members are bound to comply 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 st

11、andards may be obtained on application to the 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

12、 the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Swed

13、en, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members

14、. Ref. No. EN 12952-13:2003 + A1:2003 EEN 12952-13:2003 (E) 2 Contents page Foreword3 1 Scope5 2 Normative references5 3 Design, calculation, construction and manufacture5 4 Equipment and erection6 5 Inspection and testing.8 5.1 Inspection of workmanship and leakage testing8 5.2 Final inspection bef

15、ore putting into operation .8 6 Operating manual and instructions .8 Annex A (informative) Guidance on operation matters.9 Bibliography 10 EN 12952-13:2003 (E) 3 Foreword This document (EN 12952-13:2003) has been prepared by Technical Committee CEN/TC 269 “Shell and water- tube boilers“, the secreta

16、riat 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 September 2003, and conflicting national standards shall be withdrawn at the lat- est by September 2003. This document

17、 has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document. The European Standard EN 12952 concerning water-tube boilers and auxiliary

18、installations consists of the following parts: Part 1: General Part 2: Materials for pressure parts of boilers and accessories Part 3: Design and calculation for pressure parts Part 4: In-service boiler life expectancy calculations Part 5: Workmanship and construction of pressure parts of the boiler

19、 Part 6: Inspection during construction, documentation and marking of pressure parts of the boiler Part 7: Requirements 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

20、for the boiler Part 10: Requirements for safeguards against excessive pressure Part 11: Requirements for limiting devices and safety circuits of the boiler and accessories Part 12: Requirements for boiler feedwater and boiler water quality Part 13: Requirements for flue gas cleaning systems Part 14:

21、 Requirements for flue gas DENOX-systems Part 15: Acceptance tests Part 16: Requirements for grate and fluidized bed firing systems for solid fuels for the boiler CR 12952-17, Water boilers and auxiliary installations - Part 17: Guideline for the involvement of an inspection body independent of the

22、manufacturer Although, these parts may be obtained separately, it should be recognised that the parts are inter-dependent. As such, the design and manufacture of water-tube boilers requires the application of more than one part in order for the requirements of the European Standard to be satisfactor

23、ily fulfilled. NOTE Parts 4 and 15 are not applicable during the design, construction and installation stages. Annex A is informative. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following coun- tries are bound to implement this European Standard: A

24、ustria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. EN 12952-13:2003 (E) 4 Foreword to amendment A1 This document EN 12952-13:2003/

25、A1:2003 has been prepared by Technical Committee CEN/TC 269 “Shell and water-tube boilers“, the secretariat of which is held by DIN. This Amendment to the European Standard EN 12952-13:2003 shall be given the status of a national standard, either by publication of an identical text or by endorsement

26、, at the latest by June 2004, and conflicting national standards shall be withdrawn at the latest by June 2004. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. According to the CEN/CENELEC Internal Regulations, the nati

27、onal standards organizations of the following coun- tries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerla

28、nd and the United Kingdom. EN 12952-13:2003 (E) 5 1 Scope This part of this European Standard applies to the design of equipment for boiler plants to reduce air pollutants in the flue gases. NOTE The effects of explosion are not considered in this part of this European Standard. 2 Normative referenc

29、es This European Standard incorporates, by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these

30、 publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 12952-8, Water-tube boilers and auxiliary installations Part 8: Requirements for firing sys

31、tems for liquid and gaseous fuels for the boiler prEN 12952-14, Water-tube boilers and auxiliary installations Part 14: Requirements for flue gas DENOX- systems EN 13445 (all parts), Unfired pressure vessels. prEN 50156-1:1997, Electrical equipment for furnaces and ancillary equipment Part 1: Requir

32、ements for applica- tion design and installation. 3 Design, calculation, construction and manufacture 3.1 The plant components, vessels, absorbers, DENOX reactors, scrubbers, heat exchangers, pipework, ducts, expansion joints, shut-off devices, blanking disks and other related equipment shall be des

33、igned such that they will safely withstand the mechanical loadings from internal pressure, vacuum, if any, dead weight and additional forces e.g. expansion joint working spring rates, at the intended operating temperature and for the service lifetime. Pres- sures and loadings resulting from operatin

34、g upset conditions and their consequences shall be considered sepa- rately. In such cases, the safety factor referred to the pertinent yield stress shall be at least 1.0. Temperatures below dew point, if any, and the consequences arising therefrom shall be prevented by suitable measures or by proper

35、 selection of materials. Additional effects such as corrosion/erosion attack by other chemicals in the flue gas may be considered by wall thickness allowances, if required. The suitability of plant components containing water-polluting substances shall comply with European Standards (e.g. prEN 12285

36、). 3.2 The design shall be based on the load assumptions of EN 13445 unless deviations from these assumptions occur locally. For additional loadings not covered by the above mentioned standard the respective values shall be taken from the design data, in which case distinction has to be made between

37、 normal and abnormal operating load conditions. 3.3 Unfired pressure vessels included in the system shall be designed and manufactured in accordance with EN 13445. 3.4 The design shall assume that under any operating condition the flue gas pressure is not higher or lower than the value used in the d

38、esign. Particular consideration of the damper positions and the heads of pumps and fans shall be taken into account. 3.5 The design of the components shall take into account the requirements for corrosion resistant materials, for items such as linings and coatings. 3.6 Structural components of the f

39、lue-gas cleaning plant shall meet the relevant European Standards (e.g. ENV 1993, ENV 1994). Fire-protection requirements shall be taken into account. EN 12952-13:2003 (E) 6 3.7 Firing systems for reheating the flue-gas (e.g. flat flame burners) shall be designed in accordance with EN 12952-8. 4 Equ

40、ipment and erection 4.1 Suitable control equipment shall be provided to prevent pressure or temperature excursions: a) in the flue gas path, e. g. by cut-out of the firing system or changeover to the flue-gas bypass system b) in isolated sections when supplementary firing systems for flue-gas reheat

41、ing; seal-air fans on isolating dampers; fans are operating. c) in the case of failure of or operating problems on equipment, e. g. fans, heat exchangers, back-up burners; dampers. Electrical drive units having safety functions shall meet the requirements of prEN 50156-1. 4.2 Drains shall be provide

42、d to permit the discharge of any condensate formed below the dew point temperature. 4.3 Access openings, e.g. manhole doors, shall be provided in vessels, ducts and similar equipment to facilitate the required maintenance work. 4.4 Access openings shall wherever possible have the following dimension

43、s an internal diameter of at least 800 mm or a cross-section of at least 0,5 m 2for rectangular sections in which case no side length of the opening shall be less than 600 mm. If the design precludes the aforementioned dimensions, the access openings shall not be less than 600 mm diameter. It shall

44、be possible to open covers of access openings without danger, and such covers shall not close automatically. In the case of openings on the side of components, their lower edge shall not be higher than 500 mm above the access level. If necessary, mobile access platforms shall be used. Access opening

45、s shall be provided with latching handles which shall be so located as to ensure safe holding. When locating access openings care shall be taken to ensure that there is no danger of falling through the opening. If the danger of falling cannot be excluded, handles and guides for the attachment of saf

46、ety harness equipment shall be provided. The danger of falling shall be clearly indicated by a warning notice. 4.5 During any operating condition no appreciable amount of flue gas or other substances shall enter plant areas released for work, e. g. the operation of a boiler with isolated flue-gas du

47、cts or the operation of several boilers with one common flue-gas duct. This may be achieved for example by; EN 12952-13:2003 (E) 7 a) two shut-off devices arranged in series with a seal-air space between them supplied with reliably 1)monitored seal air; b) one shut-off device with double seal and se

48、al-air space between the two seals supplied with reliably 1)moni- tored seal air; c) two shut-off devices arranged in series with an intermediate opening to atmosphere and monitoring equipment to detect leaking flue gas; d) readily visible, tight blanking disc; e) one shut-off device situated betwee

49、n the section to be inspected and the induced-draught fan with reliably 1) monitored sub-atmospheric pressure between the shut-off device and the induced-draught fan. In this case one monitoring criteria shall become effective which directly indicates the failure of the draught, e. g. by means of flow or air measurements. This induced-draught fan shall not be used for boiler operation during in- spection; f) Other equivalent means. The seal