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BS EN 12952-8:2022

BS EN 12952-8:2022

$167.15

Water-tube boilers and auxiliary installations – Requirements for firing systems for liquid and gaseous fuels for the boiler

Published By Publication Date Number of Pages
BSI 2022 36
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1.1 Firing systems This document specifies requirements for liquid and gaseous fuel firing systems of steam boilers and hot water generators as defined in EN 12952-1:2015. These requirements also apply to firing systems of chemical recovery boilers (black liquor boilers) with the additions and amendments specified in Annex A. These requirements also apply to gas turbines in combination with fired/unfired heat recovery steam generators with the additions and amendments specified in Annex B. NOTE 1 This document is not applicable to coil type boilers (flash boilers/small boilers) that use burners in accordance with EN 12953-7 for single burner installations. NOTE 2 This document is not applicable to the storage of liquid fuels and to transfer stations of long-distance gas pipelines. 1.2 Fuels This document specifies requirements which cover the use of liquid and gaseous fuels as defined in this document. Fuels deviating from standardized commercially available types can require additional or alternative safety measures. For black liquor these safety measures are given in Annex A.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Annex ZA (informative) Relationship between this European Standard and the essential requirements of Directive 2014/68/EU aimed to be covered
Annex ZA (informative) Relationship between this European Standard and the essential requirements of Directive 2014/68/EU aimed to be covered
Annex ZA (informative) Relationship between this European Standard and the essential requirements of Directive 2014/68/EU aimed to be covered
8 European foreword
10 1 Scope
1.1 Firing systems
1.2 Fuels
2 Normative references
11 3 Terms and definitions
14 4 Fuel supply
4.1 General
4.2 Fuel transfer and preparation
15 4.3 Fuel lines
16 4.4 Safety shut-off devices (Safety trip valves)
18 5 General
5.1 Air supply
19 5.2 Air/fuel ratio
5.3 Flue gas discharge
20 6 Firing system
6.1 Burners
21 6.2 Flue gas recirculation
6.3 Control and monitoring
22 6.4 Electrical equipment
6.5 Safety precautions
23 6.6 Common stack for several firing systems
7 Operating manual
8 Particular requirements for firing systems burning gaseous fuels with high relative density
8.1 Main firing systems
8.1.1 Supply of gases
24 8.1.2 Safety shut-off device
8.1.3 Shutdown of burners for heavy gas in its liquid state
8.2 Ignition burner systems
25 Annex A (normative) Chemical recovery boiler (black liquor boiler)
28 Annex B (normative) Gas turbines in combination with heat recovery steam generators
30 Annex C (informative) Operational requirements for permanent supervised firing systems for liquid and gaseous fuels
33 Annex D (informative) Significant technical changes between this document and the previous edition
35 Bibliography

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BS EN 12952-8:2022
$167.15