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EN 12953-6:2011

(Main)

Shell Boilers - Part 6: Requirements for equipment for the boiler

Shell Boilers - Part 6: Requirements for equipment for the boiler

This part of this European Standard specifies the minimum requirements for safety related equipment for shell boilers as defined in EN 12953-1, to ensure the boiler operates within the allowable limits (pressure, temperature, etc.) and if the limits are exceeded the energy supply shall be interrupted and locked out without manual (human) intervention at the boiler.
NOTE 1   The maximum time of operation without manual (human) intervention should be defined for each boiler system.
NOTE 2   Annex C (informative) gives recommendations of operation and testing of the boiler system with a maximum time of operation without manual (human) intervention of 72 hours.

Großwasserraumkessel - Teil 6: Anforderungen an die Ausrüstung für den Kessel

Der vorliegende Teil dieser Europäischen Norm legt die Mindestanforderungen an die sicherheitstechnische Ausrüstung der in EN 12953-1 definierten Großwasserraumkessel fest, um sicherzustellen, dass der Kessel innerhalb der zulässigen Grenzen (Druck, Temperatur usw.) arbeitet und, sofern die Grenzen überschritten werden, muss die Energiezufuhr ohne manuelles (menschliches) Eingreifen am Kessel unterbrochen und verriegelt werden.
ANMERKUNG 1 Die maximale Betriebsdauer ohne manuelles (menschliches) Eingreifen sollte für jedes Kesselsystem definiert sein.
ANMERKUNG 2 Der (informative) Anhang C enthält Empfehlungen zum Betrieb und zur Prüfung des Kesselsystems mit einer maximalen Betriebsdauer ohne manuelles (menschliches) Eingreifen von 72 h.

Chaudières à tube de fumée - Partie 6: Exigences pour l'équipement de la chaudière

Cette partie de la présente Norme européenne spécifie les exigences minimales pour l’équipement relatif à la
sécurité des chaudières à tubes de fumée définies dans l’EN 12953-1, afin de garantir que la chaudière
fonctionne dans les limites admissibles (pression, température, etc.) et, dans le cas où les limites seraient
dépassées, l'alimentation en énergie doit être interrompue et verrouillée sans intervention manuelle (humaine)
au niveau de la chaudière.
NOTE 1 Il convient de définir la durée maximale de fonctionnement sans intervention manuelle (humaine) pour chaque
système de chaudière.
NOTE 2 L’Annexe C (informative) donne des recommandations de fonctionnement et d’essai du système de chaudière
avec une durée maximale de fonctionnement sans intervention manuelle (humaine) de 72 heures.

Mnogovodni kotli - 6. del: Zahteve za opremo kotla

Ta del tega evropskega standarda določa minimalne zahteve za varnostno opremo za mnogovodne kotle, kot so opredeljeni v EN 12953-1, da se zagotovi, da kotel deluje v dovoljenih omejitvah (tlaka, temperature itd.) in da se pri preseženih omejitvah napajanje prekine in zaklene brez ročnega (človeškega) posega v kotel.

General Information

Status
Published
Publication Date
15-Feb-2011
ICS
27.060.30 - Boilers and heat exchangers
27.100 - Power stations in general
Technical Committee
CEN/TC 269 - Shell and water tube boilers
Drafting Committee
CEN/TC 269/WG 3 - Equipment
Current Stage
9093 - Decision to confirm - Review Enquiry
Completion Date
09-Jun-2015
Directive
2014/68/EU - Directive 2014/68/EU of the European Parliament and of the Council of 15 May 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment
97/23/EC - Directive 97/23/EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the laws of the Member States concerning pressure equipment
Mandate
M/071 - Mandate to CEN for standardization in the field of Pressure equipment
Ref Project
SIST EN 12953-6:2011 - Shell Boilers - Part 6: Requirements for equipment for the boiler

Relations

Replaces
EN 12953-6:2002 - Shell boilers - Part 6: Requirements for equipment for the boiler
Effective Date
22-Dec-2008
Revised
FprEN 12953-6 - Shell Boilers - Part 6: Requirements for equipment for the boiler
Effective Date
19-Jan-2023

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Mnogovodni kotli - 6. del: Zahteve za opremo kotlaGroßwasserraumkessel - Teil 6: Anforderungen an die Ausrüstung für den KesselChaudières à tube de fumée - Partie 6: Exigences pour l'équipement de la chaudièreShell Boilers - Part 6: Requirements for equipment for the boiler27.060.30Grelniki vode in prenosniki toploteBoilers and heat exchangersICS:Ta slovenski standard je istoveten z:EN 12953-6:2011SIST EN 12953-6:2011en,fr,de01-november-2011SIST EN 12953-6:2011SLOVENSKI
STANDARDSIST EN 12953-6:20021DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12953-6
February 2011 ICS 27.060.30 Supersedes EN 12953-6:2002English Version
Shell Boilers - Part 6: Requirements for equipment for the boiler Chaudières à tube de fumée - Partie 6: Exigences pour l'équipement de la chaudière
Großwasserraumkessel - Teil 6: Anforderungen an die Ausrüstung für den Kessel This European Standard was approved by CEN on 1 January 2011.
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 standards may be obtained on application to the CEN-CENELEC 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 same status as 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
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 12953-6:2011: ESIST EN 12953-6:2011

Foreword . 31Scope . 52Normative references . 53Terms and definitions . 54General requirements for steam boilers and hot water boilers . 84.1Safeguards (safety valves) against excessive pressure . 84.2Materials for valves, fittings, flanges and bolting . 84.3Protective systems . 84.4Heat supply . 84.5Flue-gas heated economizers . 104.6Drain and blowdown devices . 104.7Water quality . 104.8Water quality protection . 105Special requirements for steam boilers . 125.1Water level indication . 125.2Steam pressure and temperature indication . 145.3Valves for connections . 155.4Feed water supply. 155.5Feed water control . 155.6Limiting devices . 165.7Electrically heated steam boilers . 166Special requirements for hot water boilers . 166.1Hot water generating systems (for example see Annex A) . 166.2Expansion and feed lines for open vented systems . 176.3Water supply . 186.4Water level indication . 186.5Limiting devices . 196.6Vent valves . 206.7Pressure and temperature indication . 206.8Pressure controller . 206.9Discharge from safety valves . 216.10Electrically heated hot water boilers . 216.11Parallel mode of operation of hot water boilers . 217Operational aspects including maintenance and testing . 218Alarms and monitoring from the boiler plant . 22Annex A (informative)
Examples of steam and hot water boiler systems. 23Annex B (normative)
Dimensioning of expansion space . 37Annex C (informative)
Aspects of boiler operation . 40Annex D (informative)
Drain and blowdown devices . 45Annex E (informative)
Alarms and monitoring from the boiler plant . 47Annex F (informative)
Significant technical changes between this European Standard and the
previous edition . 50Annex ZA (informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 97/23/EC . 51Bibliography . 52 SIST EN 12953-6:2011

NOTE 1 The maximum time of operation without manual (human) intervention should be defined for each boiler system. NOTE 2 Annex C (informative) gives recommendations of operation and testing of the boiler system with a maximum time of operation without manual (human) intervention of 72 hours. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12953-1:2002, Shell boilers — Part 1: General EN 12953-2:2002, Shell boilers — Part 2: Materials for pressure parts of boilers and accessories EN 12953-7:2002, Shell boilers — Part 7: Requirements for firing systems for liquid and gaseous fuels for the boilers EN 12953-8:2001, Shell boilers — Part 8: Requirements for safeguards against excessive pressure EN 12953-9:2007, Shell boilers — Part 9: Requirements for limiting devices of the boiler and accessories EN 12953-10:2003, Shell boilers — Part 10: Requirements for feedwater and boiler water quality EN 12953-12:2003, Shell boilers — Part 12: Requirements for grate firing systems for solid fuels for the boiler EN 50156-1:2004, Electrical equipment for furnaces and ancillary equipment — Part 1: Requirements for application design and installation 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 12953-1:2002 and the following apply. 3.1 controls devices used for maintaining the variable to be controlled (pressure, temperature, etc.) at a specific value (set point) 3.2 limiter limiting device that, on reaching a fixed value (pressure, temperature, etc.) is used to interrupt and lock-out the energy supply and requires manual unlocking before restart limiting device requires:  measuring or detection function, and SIST EN 12953-6:2011
...

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1.1   General
This European Standard applies to shell boilers with volumes in excess of 2 litres for the generation of steam and/or hot water at a maximum allowable pressure greater than 0,5 bar and with a temperature in excess of
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The purpose of this European Standard is to ensure that the hazards associated with the operation of shell boilers are reduced to a minimum and that adequate protection is provided to contain the hazards that still prevail when the shell boiler is put into service. This protection will be achieved by the proper application of the design, manufacturing, testing and inspection methods and techniques incorporated in the various parts of this European Standard. Where appropriate, adequate warning of residual hazards and the potential for misuse are given in the training and operating instructions and local to the equipment concerned (see EN 12953-7 and EN 12953-8).
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This European Standard specifies requirements for both directly fired and electrically heated boilers including Low Pressure Boilers (LPB, see 3.6) as well as for heat recovery boilers with a gas-side pressure not exceeding 0,5 bar of cylindrical design, constructed from carbon or carbon manganese steels by fusion welding and a design pressure not exceeding 40 bar. The boilers covered by this European Standard are intended for land use for providing steam or hot water (typical examples are shown in Figures 1 to 6).
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NOTE 2   For boilers operating at a pressure on the gas-side greater than 0,5 bar the rules of this standard equally apply. However, it is generally considered that additional design analysis, inspection and testing may be necessary.
Where a particular boiler is a combination of shell and water-tube design then the water-tube standard series EN 12952 is used in addition to this European Standard. One such example of this combination is shown in Figure 3.
This European Standard applies to the generator, from the feed-water or water inlet connection to the steam or water outlet connection and to all other connections, including the valves and steam and water fittings. If welded ends are used, the requirements specified herein begin or end at the weld where flanges, if used, would have been fitted.
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This European standard does not apply to the following types of boilers and equipments:
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