BS EN ISO 13577-2:2023:2024 Edition

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Industrial furnaces and associated processing equipment. Safety – Combustion and fuel handling systems

Published By	Publication Date	Number of Pages
BSI	2024	114

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Description

This document specifies the safety requirements for combustion and fuel handling systems that are part of industrial furnaces and associated processing equipment (TPE), including single and multiple burner systems in thermoprocessing equipment and machines. NOTE The general safety requirements common to TPE are provided in ISO 13577-1:2016. ISO 13577-1:2016, Annex B also includes a list of processes for which industrial furnaces and heating systems covered by the ISO 13577 series are used. This document deals with significant hazards, hazardous situations and events relevant to combustion and fuel handling systems as listed in Annex A, when used as intended and under the conditions for use as described in the instruction handbook. This document covers: — fuel pipework downstream of and including the manual isolating valve; — combustion air supply (including oxygen and oxygen enriched combustion air) and flue gas system; — burner(s), burner system and ignition device; — functional requirements for safety related control system. This document applies to any oxidation of gaseous and liquid fuels with air or other gases containing free oxygen to release thermal energy in TPE. Annex B includes examples of gaseous and liquid fuels. For thermal or catalytic post combustion and waste incineration, this document applies only to auxiliary burners designed to start-up and/or support the process. The pressure hazard of the piping and components covered by this document is within the maximum pressure/size relationship of category I as specified in Annex C. This document also gives the necessary requirements regarding information for use. This document does not cover hazards from heating generated by electricity. This document does not deal with the hazards created by the release of flammable substances from the products processed in the TPE. This document is not applicable to combustion and fuel handling systems: — of gas welding and allied processes; — up-stream of the TPE manual isolating valve. This document is not applicable to industrial furnaces and associated processing equipment (TPE), including single and multiple burner systems in thermoprocessing equipment and machines manufactured before the date of its publication. This document is not applicable to blast furnaces, converters (in steel plants), boilers, fired heaters (including reformer furnaces) in the petrochemical and chemical industries. This document is not applicable to electrical cabling and power cabling upstream of the TPE control panel/protective system.

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PDF Pages	PDF Title
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14	4.1 General 4.1.1 Safety objectives and basic requirements
15	4.1.2 Over-temperature protection
16	4.1.3 Accumulation of hazardous fluids 4.1.4 Seismic protection 4.1.5 Regional requirements 4.2 Fuel pipework 4.2.1 General 4.2.2 Connections
18	4.2.3 Unconnected pipework 4.2.4 Galvanic cells 4.2.5 Flexible tubing and couplings 4.2.6 Marking 4.2.7 Soundness/tightness
20	4.2.8 Condensate drains on gas pipework 4.2.9 Fuel pipe heating 4.2.10 Purge points 4.2.11 Pressure relief devices 4.2.12 Blow-off and breather pipes or conduits
21	4.2.13 Equipment supplied with different fuels 4.2.14 Bypass 4.2.15 Isolation of required safety devices 4.3 Required safety devices for gaseous fuels 4.3.1 Manual isolating valve 4.3.2 Filter/strainer
22	4.3.3 Gas pressure regulator 4.3.4 Low gas pressure protection
23	4.3.5 High gas pressure protection 4.3.6 Automatic shut-off valves
24	4.3.7 Valve proving
25	4.3.8 Individual manual shut-off valves for burners 4.3.9 Flame arrestor 4.4 Gas pressure boosters
26	4.5 Required safety devices for liquid fuels 4.5.1 Manual isolating valve 4.5.2 Filter/strainer 4.5.3 Pressure relief valve 4.5.4 Liquid fuel pressure regulator 4.5.5 Pressure regulation of auxiliary fluids 4.5.6 Liquid fuel and auxiliary fluid pressure protection 4.5.7 Liquid fuel temperature protection
27	4.5.8 Automatic shut-off valves 4.5.9 Automatic shut-off valves for multiple burners 4.5.10 Individual manual shut-off valves for multiple burners
28	4.6 Combustion air and fuel/air ratio 4.6.1 Combustion air system 4.6.2 Air flow and pressure sensing devices
29	4.6.3 Air/fuel ratio 4.7 Supply of pre-mixed fuel gas/air 4.7.1 Mixture pipework 4.7.2 Air and gas supply to the mixture circuit
30	4.8 Liquid fuel atomisation 4.9 Burners 4.9.1 Main burners 4.9.2 Radiant tube burner systems 4.9.3 Ignition device/pilot burner
31	4.9.4 Permanent pilots 4.9.5 Burner capacity control 4.9.6 Flue gas venting 4.9.7 Purge of residual fuel 4.10 Automatic burner control systems 4.10.1 General
32	4.10.2 Low-temperature equipment 4.10.3 High-temperature equipment
33	4.10.4 Automatic burner control systems for burners operating in the open air 4.10.5 Flame supervision for line-burners 4.11 Start-up of the heating system and burner ignition 4.11.1 Pre-purging of the combustion chamber
35	4.11.2 Start-up of the fuel supply 4.11.3 Start fuel flow rate 4.11.4 Ignition 4.11.5 Maximum safety times for gas-fired natural draught burners
36	4.11.6 Maximum safety times for forced and induced draught gas-fired burners
37	4.11.7 Maximum safety times for liquid fuel fired burners
38	4.11.8 Flame failure on start-up 4.11.9 Flame failure during operation
39	4.12 Multiple fuels 4.12.1 General 4.12.2 Fuel circuit 4.12.3 Combustion air supplies 4.12.4 Operation of the safety devices 4.12.5 Air/fuel ratio 4.13 Oxygen or oxygen-enriched combustion air (OOECA) 4.13.1 General
40	4.13.2 Suitability for oxygen service 4.13.3 Pipework 4.13.4 Flow velocities
41	4.13.5 Connection for oxygen pipework 4.13.6 Sealing materials for oxygen pipework 4.13.7 Fittings 4.13.8 Blow off and venting lines 4.13.9 Flexible tubing and couplings 4.13.10 Safety devices against backflow 4.13.11 Material requirements
46	6.1 General 6.2 Marking 6.3 Instruction handbook 6.3.1 General 6.3.2 Description of equipment
47	6.3.3 Inspection procedures 6.3.4 Commissioning, start-up and operating procedures 6.3.5 Shutdown procedures
48	6.3.6 Maintenance procedures 6.3.7 Documentation

Additional information

Status	Definitive
Pages	114
Publication Date	2024-01-04
ISBN	978 0 539 17755 8
Standard Number	BS EN ISO 13577-2:2023
Title	Industrial furnaces and associated processing equipment. Safety – Combustion and fuel handling systems
Identical National Standard Of	EN ISO 13577-2, ISO 13577-2
Replaces	BS EN 746-2:2010, BS ISO 13577-2:2014
Descriptors	Industrial, Pipework systems, Heat engineering components, Instructions for use, Safety devices, Handbooks, Safety measures, Occupational safety, Furnaces, Production equipment, Burners, Marking, Equipment safety, Ignition systems (heat engineering), Heating equipment, Fuels, Hazards, Classification systems
Publisher	BSI
Committee	RHE/13
ICS Codes	13.100 - Occupational safety. Industrial hygiene

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BS EN ISO 13577-2:2023:2024 Edition

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